JP7780244B2 - Industrial Machine Mounting Stand - Google Patents

Description

The present invention relates to an industrial machine mounting base for industrial robots and other industrial machines equipped with a Z-axis arm that may move due to the effects of gravity, and which is designed to automatically lower the Z-axis arm in the event of a power outage, emergency stop, or other power outage.

Conventionally, industrial robots and other industrial machines equipped with Z-axis arms that may descend due to the influence of gravity, such as SCARA robots, have been in use.

In industrial machinery equipped with such a Z-axis arm, if the power supply is cut off due to a power outage or emergency stop and the machine stops, the Z-axis arm will descend due to the effects of gravity caused by its own weight. When the Z-axis arm descends in this way, the Z-axis arm or parts of the workpiece held at the tip of the Z-axis arm may come into contact with the workpiece (object of work) on the workbench or the workbench, potentially damaging the Z-axis arm or workpiece.

In response, a robot has been proposed that uses an electromagnetic brake motor as the arm drive motor and uses a non-excitation operated electromagnetic brake to prevent the Z-axis arm from descending in the event of a power outage or emergency stop (Patent Document 1).

However, the robot described in Patent Document 1 had a problem in that, as shown in the timing chart in Figure 19, the Z-axis arm would descend under its own weight between the time the motor stopped due to a power outage or other reason and the time the non-excitation-activated electromagnetic brake was activated.

In order to reliably prevent the arm from descending when the drive source is stopped due to a power outage or other reason, an arm drive device has been proposed that includes a support body, an arm rotatably supported on the support body and having a work support portion that supports a workpiece, a drive source that rotates the arm, a reducer with multiple gears that connects the arm to the drive source, and a spring member that acts as a torque applying mechanism separate from the drive source and applies torque to the arm in a direction that raises the work support portion, and the torque applying mechanism is configured to generate a torque greater than the torque required to prevent the work support portion from descending when no driving force from the drive source is acting within the movable range of the arm and the work support portion is supporting a workpiece of maximum payload capacity (Patent Document 2).

JP 2011-229331 A JP 2014-124742 A

However, with the configuration of the arm drive device described in Patent Document 2, it was sometimes structurally difficult to install a torque application mechanism to apply torque to the Z-axis arm of an existing industrial robot. Furthermore, with the arm drive device described in Patent Document 2, there was a problem in that a load was constantly applied to the reducer, increasing the likelihood of the device failing.

Therefore, one of the objectives of the present invention is to prevent the Z-axis arm or workpiece parts held at the end of the Z-axis arm from coming into contact with the workpiece on the workbench or the workbench when the Z-axis arm descends when the machine stops due to a power outage, regardless of the type of industrial machinery, particularly existing products currently in use or in production, without being subject to structural constraints or applying loads that could cause equipment failure.

As a means for resolving the above-mentioned problems, the present invention provides a workpiece processing device mounting base that includes a device base on which a workpiece processing device that processes workpieces is installed, and a device base lifting mechanism that raises the device base when the workpiece processing device is not powered.

The workpiece processing device mounting base also includes a pair of support posts that support the device base so that it can be raised and lowered by changing the spacing between them, and the device base lifting mechanism includes an elastic section that has an elastic force that changes the spacing between the pair of support posts, and an equipment support post spacing operating section that has a pressing force that changes the spacing between the pair of posts with a force in the opposite direction to the elastic force of the elastic section when the workpiece processing device is energized.

Furthermore, in the above-mentioned work processing device mounting base, the device support column spacing operating portion is equipped with a push solenoid that presses against at least one of the pair of columns or the device base portion.

Furthermore, in the above-mentioned work processing device mounting base, the device base lifting mechanism is characterized by comprising an elastic part having an elastic force that changes the height position of the device base, and a push solenoid having a pressing force that changes the height position of the device base with a force in the opposite direction to the elastic force of the elastic part when the work processing device is energized.

The workpiece placement table is characterized by having a workpiece platform on which the workpiece to be processed by the workpiece processing device is placed, and a workpiece platform lifting mechanism that lowers the workpiece platform when the workpiece processing device is not powered on.

The above-mentioned workpiece setting table also includes a pair of support columns that support the workpiece table so that it can be raised and lowered by changing the distance between them, and the workpiece table lifting mechanism includes an elastic section that has an elastic force that changes the distance between the pair of support columns, and a workpiece support column spacing operating section that has a pressing force that changes the distance between the pair of support columns with a force in the opposite direction to the elastic force of the elastic section when the workpiece processing device is energized.

Furthermore, in the above-mentioned workpiece setting table, the workpiece support spacing action unit is composed of a push solenoid that presses on at least one of the pair of supports or the workpiece base unit.

Furthermore, in the above-mentioned workpiece setting table, the workpiece platform lifting mechanism is characterized by including an elastic part having an elastic force that changes the height position of the workpiece platform, and a push solenoid having a pressing force that changes the height position of the workpiece platform with a force in the opposite direction to the elastic force of the elastic part when the workpiece processing device is energized.

Also, there is a workpiece processing table characterized by being equipped with the above-mentioned workpiece processing device mounting table and/or the above-mentioned workpiece setting table.

The workpiece processing stand is characterized by comprising a workpiece processing device mounting base having a device base on which a workpiece processing device that processes workpieces is installed, a workpiece setting base having a workpiece base on which a workpiece to be processed by the workpiece processing device is installed, and a distance expansion mechanism that expands the vertical distance between the device base and the workpiece base when the workpiece processing device is not powered.

According to the present invention, when the machine stops due to a power outage, rather than using a torque application mechanism to prevent the Z-axis arm from descending as in conventional technology, the work processing device is configured to raise the device platform itself on which the work processing device is installed, and/or lower the work platform on which the work to be processed by the work processing device is installed. This means that the currently used work processing device can be used as is without being subject to structural constraints in the work processing device. It also prevents contact between the Z-axis arm or workpiece parts held at the tip of the Z-axis arm and the workpiece on the workbench or the workbench due to the Z-axis arm descending when the machine stops, without applying a load that could cause equipment failure, and further prevents damage to the Z-axis arm and workpiece.

Side view of one embodiment of the workpiece processing system of the present invention A side view of an embodiment of the work processing device mounting base in a raised state. 1 is a perspective view of an embodiment of the work processing device mounting base in a raised state; A side view of one embodiment of the work processing device mounting base of the present invention in a lowered state. 1 is a perspective view of a workpiece processing apparatus mounting base according to an embodiment of the present invention in a lowered state; 1A and 1B are partial views of an embodiment of a work processing device provided with a mounting rail of the work processing device of the present invention, in which (a) is a side view and (b) is a perspective view. 1A and 1B are partial views of an embodiment of a work processing device provided with a mounting rail of the work processing device of the present invention, in which (a) is a side view and (b) is a perspective view. 1 is a perspective view of another embodiment of the work processing device mounting base of the present invention; Timing chart of the workpiece processing device and the workpiece processing device mounting base in the present invention 1A and 1B are side views of the work processing apparatus mounting base according to a second embodiment of the present invention, in which (a) is a view showing a lowered state and (b) is a view showing an elevated state. 10A and 10B are side views of the work processing apparatus mounting base according to the third embodiment of the present invention, in which (a) is a view showing a lowered state and (b) is a view showing an elevated state. 10A and 10B are side views of the fourth embodiment of the work processing apparatus mounting base of the present invention, in which (a) is a lowered state view and (b) is an elevated state view. 5A and 5B are side views of the fifth embodiment of the work processing apparatus mounting base of the present invention, in which (a) is a lowered state view and (b) is an raised state view. 1A and 1B are side views of the first embodiment of the workpiece setting table of the present invention, in which (a) is a view showing the raised state and (b) is a view showing the lowered state. 1A and 1B are side views of the workpiece setting table according to a second embodiment of the present invention, in which (a) is a view showing the workpiece setting table in an ascending state and (b) is a view showing the workpiece setting table in a descending state. 10A and 10B are side views of the workpiece setting table according to the third embodiment of the present invention, where FIG. 10A is a view showing the workpiece setting table in an ascending state and FIG. 10B is a view showing the workpiece setting table in a descending state. 10A and 10B are side views of the workpiece setting table according to the fourth embodiment of the present invention, in which FIG. 10A is a diagram showing an ascending state and FIG. 10B is a diagram showing a descending state. 5A and 5B are side views of the workpiece setting table according to the fifth embodiment of the present invention, in which FIG. 5A is a diagram showing the workpiece setting table in an ascending state and FIG. 5B is a diagram showing the workpiece setting table in a descending state. Timing chart of a workpiece processing device and a workpiece processing device mounting base in the prior art

The workpiece processing stand of the present invention is composed of a workpiece processing device mounting base with a device base on which a workpiece processing device that processes workpieces is installed, a workpiece setting base with a workpiece base on which a workpiece to be processed by the workpiece processing device is installed, and a distance expansion mechanism that expands the vertical distance between the device base and the workpiece base when the workpiece processing device is not powered.

The work processing device mounting stand of the present invention is also configured with a mechanism that raises the device base when the work processing device is de-energized and its drive stops. The work installation stand of the present invention is also configured with a mechanism that lowers the work processing device base when the work processing device is de-energized and its drive stops.

Here, workpiece processing equipment refers to industrial robots and other industrial machines, such as industrial machines equipped with Z-axis arms, and more specifically, but not limited to, SCARA robots and parallel link robots. Furthermore, workpiece processing includes, but is not limited to, attaching parts to a workpiece, screwing a workpiece, soldering, welding, painting, transporting a workpiece, etc.

Embodiments of the present invention will now be described with reference to the drawings. As shown in FIG. 1, the workpiece processing table 1 is configured with a workpiece processing device mount 2 on which a workpiece processing device 10 that processes workpieces is mounted, and a workpiece mounting table 6 on which a workpiece 99 to be processed by the workpiece processing device 10 is mounted. Furthermore, the workpiece processing system 100, in which a series of processes are performed on the workpiece 99, is configured with a workpiece processing device 10 equipped with a Z-axis arm 11 mounted on the workpiece processing device mount 2 of the workpiece processing table 1, as shown in FIG. 1.

As shown in Figures 2 to 5, the work processing device mounting base 2 is configured to include a device base 21 on which the work processing device 10 is installed, a pair of support columns 3, 3 that support the device base 21 so that it can be raised and lowered, and a device base lifting mechanism 71 that raises and lowers the device base 21, specifically, raises the device base 21 when the work processing device 10 is not energized and lowers it when energized. The device base lifting mechanism 71 is configured to include an elastic section 4 that has an elastic force that changes the spacing between the pair of support columns 3, 3 and applies this elastic force directly to the pair of support columns 3, 3, and a device support column spacing operating section 72 that uses the same power supply source as the work processing device 10 to change the spacing between the pair of support columns 3, 3 with a force in the opposite direction to the elastic force of the elastic section 4, changing the spacing in the opposite direction to the direction of change caused by the elastic section 4.

The equipment base 21 is hexahedral in shape, with the top surface 211 provided with bolt holes 219 for inserting bolts to secure the workpiece processing device 10. The pair of opposing side surfaces 212, 212 are inclined downward toward each other, forming an inverted trapezoid in side view. The equipment base 21 is raised and lowered using the push solenoid 37 and elastic portion 4, and its height from the installation surface 101 is determined by the distance between the pair of support columns 3, 3. The equipment base 21 rises when the workpiece processing device 10 is powered off and its drive stops. The amount of this rise is set to be equal to or greater than the amount by which the Z-axis arm automatically descends between the time the workpiece processing device stops and the time the de-energized brake activates. Furthermore, the equipment base 21 is supported in a lowered position when the workpiece processing device 10 is powered on, and is supported in a raised position when it is not powered on.

A pair of opposing support posts 3, 3 are members that support the device base 21 from below so that it can be raised and lowered, and are installed with a variable spacing. The pair of support posts 3, 3 also support the device base 21 so that its height position can be changed by changing the spacing between them, thereby moving the device base 21 up and down. The upper surface 31 of each support post 3 is formed with an inclination toward the other support post 3 to match the inclination of the side surface 212 of the device base 21, and the inner surface 32 facing the other support post 3 is provided with a support groove 36 into which the end of the support spacing holder 35, described below, can be inserted and installed.

A pair of support columns 3, 3 are installed at a distance from each other, and an elastic portion 4 is fixed between the inner surfaces 32, 32. One support column 3 (3a) is fixed to the installation surface 101 of the work processing device mounting base 2 with bolts or the like, while the other support column 3 (3b) is installed so that it can move. The movable support column 3 (3b) is provided with casters 39, and although not shown, it is preferable to provide rails or linear guides or the like on the installation surface 101 to facilitate smooth movement of the support column 3 (3b).

The device base 21 is installed with its side surface 212 placed on the top surface 31 of the support 3. The side surface 212 of the device base 21 and the top surface 31 of the support 3 are each flat, but as shown in Figure 6, two blocks 218 may be provided on the side surface 212 of the device base 21 and two rails 318 may be provided on the top surface 31 of the support 3. The blocks 218 and rails 318 are members for reducing friction when the device base 21 slides against the support 3; the rails 318 are long protrusions extending in the direction of movement of the device base 21, and the blocks 218 are short protrusions. When the device base 21 is installed on the support 3, the blocks 218 overlap the rails 318, and when the device base 21 slides against the support 3, the blocks 218 slide on the rails 318. Note that instead of a configuration in which the rail 318 and the block 218 are stacked vertically as shown in Figure 6, a configuration in which the block 218 is located on the inside or outside of both rails 318, 318, as shown in Figure 7, is also possible. Also, although not shown, a configuration in which a rail is provided on the side surface 212 of the device stand 21 and a block is provided on the upper surface 31 of the support 3, respectively, is also possible. A configuration in which a rail or block is provided on either the side surface 212 of the device stand 21 or the upper surface 31 of the support 3 is also possible.

The elastic portion 4 has elastic force and is a member for changing, in this case reducing, the spacing between the pair of support posts 3, 3. While not limited to this, a tension spring 41 can be used. The tension spring 41 uses a spring with a spring constant that can raise the device base 21 a predetermined amount faster than the falling speed of the Z-axis arm 11 of the work processing device 10. Here, the predetermined amount is a height equal to or greater than the amount of descent of the Z-axis arm when the work processing device 10 is not energized. The elastic portion 4 reduces the spacing between the pair of support posts 3, 3 and raises the device base 21 when the work processing device 10 is not energized. In the illustrated embodiment, two tension springs 41 are installed as the elastic portion 4, but the number is not particularly limited and may be one or three or more.

The device support column spacing actuation unit 72 is a mechanism that has a pressing force that changes the spacing between the pair of supports 3, 3 with a force in the opposite direction to the elastic force that causes the elastic unit 4 to change the spacing between the pair of supports. The device support column spacing actuation unit 72 is composed of a support column spacing retainer 35 and a push solenoid 37. Note that the push solenoid 37 of the device support column spacing actuation unit 72 uses the same power supply as the work processing device 10, so it is energized when the work processing device 10 is energized and deenergized when the work processing device 10 is not energized. The pressing force of the device support column spacing actuation unit 72 is the force with which the push solenoid 37 presses the support column spacing retainer 35 and the force with which the support column spacing retainer 35 presses the support 3.

The pillar spacing retainer 35 is held between the pair of pillars 3, 3 so that it can move up and down. When moved upward by pressure from the push solenoid 37, it presses and moves the pillars 3 horizontally, changing the distance between them. The pillar spacing retainer 35 is installed with both ends inserted into the retainer grooves 36 of the pillars 3, which will be described later. When the work processing device 10 is energized, it is raised by pressure from the push solenoid 37, and in the event of a power outage, the pressure from the push solenoid 37 is removed and it falls under its own weight. The pillar spacing retainer 35 is formed in a hexahedral shape, with both side surfaces 351 at both ends sloping downward toward the tip, forming a trapezoid in side view.

The inner surfaces 32, 32 of a pair of support columns 3, 3 are provided with retaining grooves 36 for holding the support column spacing retainers 35. The retaining grooves 36 are structured to accommodate the tips of the support column spacing retainers 35 so that they can move up and down, holding them between the support columns 3, 3, and converting the up and down movement of the support column spacing retainers 35 into horizontal movement of the support columns 3. The upper surface 361 is formed to be inclined downward toward the back, corresponding to the inclination of the side surface 351 of the support column spacing retainer 35.

The side surface 351 of the support spacing retainer 35 and the upper surface 361 of the retaining portion groove 36 are inclined in a flat shape so that they slide in surface contact, but although not shown, they may each be inclined in a curved shape. In addition, although both the side surface 351 of the support spacing retainer 35 and the upper surface 361 of the retaining portion groove 36 are inclined, although not shown, it is also possible to configure only one of them to be inclined.

The push solenoid 37 is a component for moving the support column spacing retainer 35 and the device base 21 up and down. It uses the same power supply as the workpiece processing device 10. When energized, the plunger is attracted, causing the push bar 371 to protrude and abut against the underside of the support column spacing retainer 35, pressing it upward. When de-energized, the plunger is not attracted, and the push bar 371 does not press against the support column spacing retainer 35. The push solenoid 37 indirectly presses the support column 3 by pressing against the support column spacing retainer 35. The push solenoid 37 is installed on the opposing inner surfaces 32, 32 of each of the pair of support columns 3, 3. When energized, the pushing force of the push solenoid 37 is set to be greater than the elastic force of the tension spring 41 serving as the elastic member 4. When the work processing device is energized, the push solenoid 37 widens the gap between the pair of support posts 3, 3, lowering the device base 21. In the illustrated embodiment, two push solenoids 37 are installed, but the number is not particularly limited and may be one or three or more.

The height position of the device base 21 is supported at a higher position when the work processing device 10 is de-energized than when it is energized. Furthermore, when the work processing device 10 is operating, the top surface 211 of the device base 21 and the top surface 611 of the workpiece base 61 of the workpiece placement table 6 are flush with each other. As shown in Figures 2 and 3, the device base 21 may be configured so that its top surface 211 is higher than the top end of the support column 3 when raised, or it may be configured so that its top surface 211 is flush with or lower than the top end of the support column 3. As shown in Figures 4 and 5, the device base 21 may be configured so that its top surface 211 is lower than the top end of the support column 3 when lowered, or it may be configured so that its top surface 211 is flush with the top end of the support column 3 as shown in Figure 8.

Next, the operation of the work processing device mount 2 will be explained with reference to the timing chart in Figure 9. Before electricity is supplied from the drive source to the work processing device 10 mounted on the device base 21 of the work processing device mount 2, as shown in Figures 2 and 3, the pair of support columns 3 are pulled by the elastic force of the tension springs 41, and both ends of the support column spacing retainers 35 are housed in the retainer grooves 36 of the support columns 3, respectively, and the support column spacing retainers 35 act as tension rods to maintain the distance between the pair of support columns 3, 3. In addition, the side surface 212 of the device base 21 is installed opposite the upper surface 31 of the support columns 3, and the pair of support columns 3, 3 support the device base 21.

Then, electricity is supplied from a drive source (not shown) to the work processing device 10 mounted on the device base 21 of the work processing device mounting base 2. When the motor is energized, electricity is passed through the push solenoid 37, which uses the same power source as the work processing device 10, and the push solenoid 37 is activated. The push bar 371 then protrudes and abuts against the underside of the support column spacing retainer 35, pressing the support column spacing retainer 35 upward and indirectly pressing the support column 3.

When the support pillar spacing retainer 35 is pressed upward, it presses the pair of supports 3, 3 sideways. Because the pressing force of the push solenoid 37 is set to be greater than the elastic force of the tension spring 41, the sloped side surfaces 351 at both ends of the support pillar spacing retainer 35 slide upward along the sloped upper surfaces 361 of the retaining portion grooves 36 in the support pillar 3, countering the elastic force of the tension spring 41 serving as the elastic portion 4 and widening the gap between the pair of supports 3, 3. At this time, because one support pillar 3a is fixed, the unfixed support pillar 3b moves in the opposite direction to support pillar 3a, widening the gap between the supports 3, 3.

As the distance between the pair of support columns 3, 3 increases, the device base 21 descends, with its inclined side surface 212 sliding along the inclined upper surface 31 of the support column 3. As shown in Figures 4 and 5, the device base 21 is positioned lower than its height from the installation surface 101 before electricity is supplied to the work processing device 10 from the drive supply source. At this time, because power is applied to the work processing device 10, the work processing device 10 operates with the de-energized brake released, and the work is processed.

When the supply of electricity from the drive source to the work processing device 10 is stopped due to a power outage or emergency stop, the device becomes de-energized, and the work processing device 10 stops, the supply of electricity to the push solenoid 37 is also stopped, and the push bar 371 of the push solenoid 37 stops pressing against the support column spacing retaining portion 35. The support column spacing retaining portion 35 then falls under its own weight, the tension rods of the pair of supports 3, 3 come loose, and the elastic force of the tension spring 41 reduces the spacing between the pair of supports 3, 3, with both ends of the support column spacing retaining portion 35 retracting into the retaining portion grooves 36 of the support column 3. At this time, because one support column 3a is fixed, the unfixed support column 3b moves toward support column 3a, reducing the spacing between the supports 3, 3.

When the distance between the pair of support columns 3, 3 decreases, the device base 21 rises as its inclined side surface 212 slides over the inclined upper surface 31 of the support column 3, and as shown in Figures 4 and 5, the device base 21 is positioned at a higher height from the installation surface 101 than it would be when electricity is being supplied to the work processing device 10 from the drive supply source. Therefore, when the supply of electricity from the drive supply source to the work processing device 10 is stopped due to a power outage or other reason, the work processing device 10 enters a de-energized state and stops, even if the Z-axis arm automatically lowers during the time it takes for the de-energized brake to activate, the device base 21 rises by more than the amount of lowering, and the work processing device 10 rises, so the distance between the Z-axis arm 11 and the work 99 or work base 61 remains constant or increases.

Then, after the power shutdown is over, electricity is again supplied to the workpiece processing device 10 from the drive source, and when the motor is energized, the push solenoid 37 is energized, causing the push bar 371 to protrude and press the support column spacing retainer 35 upward, widening the gap between the pair of supports 3, 3 and lowering the device base 21. Then, as shown in Figures 4 and 5, the device base 21 is positioned at a lower position. The Z-axis arm then returns to its original height, and the workpiece processing device 10 is driven to process the workpiece. Note that if the device base 21 is to be lowered again, it is preferable to do so after releasing the de-energized brake.

In this way, when the power supply from the drive source to the work processing device 10 is stopped due to a power outage, emergency stop, etc., and the work processing device 10 stops, the entire work processing device 10 is lifted by the work processing device mounting base 2, preventing the Z-axis arm from falling and colliding with the work or work installation base. Furthermore, rather than incorporating a mechanism to prevent the Z-axis arm from falling into the work processing device 10, the Z-axis arm descent prevention mechanism is implemented in the work processing base 1, specifically the work processing device mounting base 2, making it possible to apply this mechanism to existing work processing devices. Therefore, measures to prevent the Z-axis arm from falling can be introduced simply by replacing the mounting base of an existing work processing device with the work processing device mounting base 2, without having to rearrange the work line on which the work processing device is installed.

Next, another embodiment of the work processing device mounting base will be described. Descriptions of the same components as those described above will be omitted, and the same reference numerals will be used to describe the same components. As shown in Figure 10, the work processing device mounting base 201 does not have the above-mentioned support column spacing retainer, and is configured to include a pair of support columns 3, 3 installed at a distance from each other; an equipment base lifting mechanism 71, i.e., an elastic section 4 that directly applies an elastic force to the pair of support columns 3, 3 to change, or in this case, reduce, the spacing between the pair of support columns 3, 3 installed at a distance; and an equipment support column spacing operating section 72 that uses the same power supply source as the work processing device (not shown) and has a pressing force that changes, or in this case increases, the spacing between the pair of support columns 3, 3 with a force in the opposite direction to the elastic force of the tension spring 41 serving as the elastic section 4.

The device support column spacing action portion 72 is composed of a push solenoid 37 that presses the device base 21 from above. The push solenoid 37 is fixed to a solenoid mounting member 51 for installing the push solenoid 37 above the device base 21, and is held above the side edge of the device base 21. The solenoid mounting member 51 is an L-shaped member, such as a plate or rod, and is configured with an extension portion 512 extending from the upper end of a linear support portion 511 above the device base 21, forming an L-shape. The solenoid mounting member 51 is installed on each of a pair of supports 3, 3, and a push solenoid 37 is fixed to each. Note that the solenoid mounting member 51 may be configured linearly without the extension portion 512, and the push solenoid 37 may be fixed directly to the support portion 511.

Next, the operation of the work processing device mount 201 of the embodiment shown in Figure 10 will be described. When electricity is supplied from the drive source to a work processing device (not shown) installed on the device base 21 of the work processing device mount 201, power is applied to the motor, and work processing is being performed, power is applied to the push solenoid 37, which uses the same power source as the work processing device's drive source, driving the push solenoid 37, causing the push bar 371 to protrude and come into contact with the top surface of the device base 21, pressing it downward.

When the equipment base 21 is pressed downward, the inclined side surface 212 of the equipment base 21 slides down on the inclined upper surface 31 of the support 3, increasing the distance between the pair of support columns 3 against the elastic force of the tension spring 41. As shown in Figure 10(a), the equipment base 21 is positioned lower than its height from the installation surface 101 before electricity is supplied to the work processing device from the drive supply source. Because power is supplied to the work processing device, the work processing device operates with the de-energized brake released, and the work is processed in this state.

When the power supply to the work processing device is cut off due to a power outage or emergency stop, and the work processing device is de-energized and stopped, the supply of electricity to the push solenoid 37 is also cut off, and the push bar 371 of the push solenoid stops pressing against the device base 21. Then, the elastic force of the tension spring 41 reduces the gap between the pair of support posts 3, 3, and the device base 21 rises while the inclined side surface 212 slides over the inclined upper surface 31 of the support post 3 (Figure 10(b)).

In this way, even if the Z-axis arm automatically descends during the time it takes for the power supply to the workpiece processing device to be cut off from the drive source due to a power outage or other power outage, stopping the workpiece processing device and activating the de-energized brake, the device base 21 will rise by more than the amount of descent, and the workpiece processing device will rise, so the distance between the Z-axis arm 11 and the workpiece 99 or workpiece base 61 will remain constant or increase.

Furthermore, another embodiment of the work processing device mounting base will be described. Descriptions of the same components as those described above will be omitted, and the same reference numerals will be used to describe the same components. As shown in Figure 11, the work processing device mounting base 202 does not have the above-mentioned support column spacing retainer, but instead includes a device base lifting mechanism 71, i.e., an elastic part 4 having an elastic force that reduces the spacing between a pair of spaced-apart supports 3, 3, and a device support column spacing operating part 72 that uses the same power supply source as the work processing device (not shown) and has a pressing force that changes, in this case, increases, the spacing between the pair of supports 3, 3 with a force in the opposite direction to the elastic force of the tension spring 41 serving as the elastic part 4. The device support column spacing operating part 72 is composed of a push solenoid 37 that presses the support column 3 from the side. The push solenoid 37 is fixed to the inner surface 32 of one of the supports 3.

Next, the operation of the workpiece processing device mount 202 of the embodiment shown in Figure 11 will be described. When electricity is supplied from the drive source to a workpiece processing device (not shown) installed on the device base 21 of the workpiece processing device mount 202, power is applied to the motor, and workpiece processing is being performed, power is applied to the push solenoid 37, which uses the same power source as the workpiece processing device's drive source, driving the push solenoid 37, causing the push bar 371 to protrude and come into contact with the inner surface 32 of the opposing support 3, pressing it laterally.

When the support columns 3 are pressed laterally, the gap between the pair of support columns 3 expands against the elastic force of the tension springs 41. As shown in Figure 11(a), the equipment base 21 is positioned lower than the height from the installation surface of the equipment base 21 before electricity is supplied to the work processing device from the drive supply source. Because power is supplied to the work processing device, the work processing device operates with the non-excitation operating brake released, and work processing is performed in this state.

When the power supply from the drive source to the work processing device is stopped due to a power outage or emergency stop, the work processing device becomes de-energized and stops, and the power supply to the push solenoid 37 is also stopped, causing the push bar 371 of the push solenoid 37 to stop pressing against the support 3. Then, the elastic force of the tension spring 41 reduces the gap between the pair of support columns 3, 3, and the device base 21 rises while the inclined side surface 212 slides over the inclined upper surface 31 of the support column 3 (Figure 11(b)).

Furthermore, another embodiment of the work processing device mounting base will be described. Descriptions of the same components as those described above will be omitted, and the same reference numerals will be used to describe the same components. As shown in Figure 12, the work processing device mounting base 203 does not have the above-mentioned support column spacing retainer, and the spacing between a pair of spaced-apart supports 3, 3 is fixed at a predetermined distance without changing. The work processing device mounting base 203 is configured with an equipment base lifting mechanism 71, i.e., a compression spring 42 as the elastic part 4 that directly applies an elastic force to the equipment base 21 to change the height position of the equipment base 21 (here, raising it), and a push solenoid 37 as the equipment support column spacing operating part 72. The equipment base 21 is supported from the sides and below by the pair of supports 3, 3 and the compression spring 42. Additionally, a flat guard 91 may be provided extending vertically from the side end of the support column 3 toward the other support column 3 over the range of movement of the equipment base 21 to assist in supporting the equipment base 21.

The push solenoid 37 uses the same power supply as the workpiece processing device (not shown) to press the device base 21 downward with a force in the opposite direction to the elastic force of the compression spring 41, thereby changing the height position of the device base 21. When current is applied to the push solenoid 37, the pressing force of the push solenoid 37 is set to be greater than the elastic force of the compression spring 42. A solenoid mounting member 53, composed of a linear member such as a plate or rod, is installed on the upper surface of the support 3 to install the push solenoid 37 above the device base 21. The push solenoid 37 is fixed to the solenoid mounting member 53 and held above the side end of the device base 21.

A plate-shaped or block-shaped spring support piece 328 is provided below the device base 21 on the inner surface 32 of the support pillar 3 to support the lower end of the compression spring 42, and the compression spring 42 is fixed between the underside of the device base 21 and the spring support piece 328.

The support column 3 also has a stopper 89 that extends above the device base 21 to prevent the device base 21 from moving and to prevent it from coming into contact with the push solenoid 37 and damaging the push solenoid 37 when the device base 21 is raised. It is also possible to lengthen the push bar 371 of the push solenoid 37 without providing the stopper 89, and to set the spring constant of the compression spring 42 so that it does not come into contact with the push solenoid 37 when the device base 21 is raised.

Next, the operation of the workpiece processing device mount 203 of the embodiment shown in Figure 12 will be described. When electricity is supplied from the drive source to a workpiece processing device (not shown) installed on the device base 21 of the workpiece processing device mount 203, power is applied to the motor, and workpiece processing is being performed, power is applied to the push solenoid 37, which uses the same power source as the workpiece processing device's drive source, driving the push solenoid 37, causing the push bar 371 to protrude and come into contact with the upper surface 211 of the device base 21, pressing it downward.

When the device base 21 is pressed downward, the pressing force of the push solenoid 37 is greater than the elastic force of the compression spring 41, so the device base 21 moves down against the elastic force of the compression spring 41, changing its height position. As shown in Figure 12(a), the device base 21 is now positioned lower than its height from the installation surface before electricity is supplied to the work processing device from the drive supply source. Because power is supplied to the work processing device, the non-excitation operating brake is released and the work processing device operates, and in this state the work processing device is operated.

When the supply of electricity from the drive source to the work processing device is stopped, the supply of electricity to the push solenoid 37 is also stopped, and the push bar 371 of the push solenoid 37 stops pressing against the device base 21. The elastic force of the compression spring 42 then causes the device base 21 to rise (Figure 12(b)). In this way, the device base 21 is supported in a lowered position when the work processing device 10 is energized, and is supported in a raised position when it is not energized.

Furthermore, another embodiment of the work processing device mounting base will be described. Descriptions of the same components as those in the embodiment shown in Figure 12 will be omitted, and the same reference numerals will be used to describe the same components. As shown in Figure 13, the work processing device mounting base 204 does not have the above-mentioned support column spacing retainer, and is configured so that the spacing between a pair of spaced-apart supports 3 is fixed at a predetermined distance without changing. The work processing device mounting base 204 is configured to include an equipment base lifting mechanism 71, which is equipped with a tension spring 41 as the elastic part 4 that directly applies an elastic force to the equipment base 21 to change the height position of the equipment base 21, in this case, to raise it, and a push solenoid 37 as the equipment support column spacing operating part 72.

The device base 21 is supported from above by a tension spring 41. Alternatively, the inner surface 32 of the support column 3 may be provided with a base installation groove 33 extending vertically over the range of movement of the device base 21, and the side of the device base 21 may be provided with an installation protrusion 214 that can be inserted into the base installation groove 33. The installation protrusion 214 can be inserted into the base installation groove 33 to assist in supporting the device base 21 from the side. The upper end of the base installation groove 33 also serves as a stopper that prevents the device base 21 from moving and prevents contact with the push solenoid 37 and damage to the push solenoid 37 when the device base 21 is raised.

The push solenoid 37 uses the same power supply as the workpiece processing device (not shown) to press the device base 21 downward with a force in the opposite direction to the elastic force of the tension spring 41, changing the height position of the device base 21. When the push solenoid 37 is energized, the pressing force of the push solenoid 37 is set to be stronger than the elastic force of the tension spring 41.

The push solenoid 37 is fixed to a solenoid mounting member 54 for mounting the push solenoid 37 above the device base 21, and is held above the side edge of the device base 21. The solenoid mounting member 54 is an L-shaped member, such as a plate or rod, and is configured in an L shape with an extension portion 542 extending from the upper end of a linear support portion 541 above the device base 21. It is mounted on each of a pair of support columns 3, and the upper ends of the push solenoid 37 and tension spring 41 are fixed to each. The lower end of the tension spring 41 is fixed to the upper surface 211 of the device base 21, and the tension spring 41 is fixed between the upper surface 211 of the device base 21 and the solenoid mounting member 54.

Next, the operation of the workpiece processing device mount 204 of the embodiment shown in Figure 13 will be described. When electricity is supplied from the drive source to a workpiece processing device (not shown) installed on the device base 21 of the workpiece processing device mount 204, power is applied to the motor, and workpiece processing is being performed, power is applied to the push solenoid 37, which uses the same power source as the workpiece processing device's drive source, driving the push solenoid 37, causing the push bar 371 to protrude and come into contact with the upper surface 211 of the device base 21, pressing it downward.

When the device base 21 is pressed downward, it moves down against the elastic force of the tension spring 41, changing its height. As shown in Figure 13(a), the device base 21 is now positioned lower than its height from the installation surface before electricity is supplied to the work processing device from the drive supply source. Because power is supplied to the work processing device, the non-excitation operating brake is released and the work processing device operates, and in this state the work processing device is operated.

When the power supply to the workpiece processing device from the drive source is stopped, the power supply to the push solenoid 37 is also stopped, and the push bar 371 of the push solenoid 37 stops pressing against the device base 21. The elastic force of the tension spring 41 then causes the device base 21 to rise (Figure 13(b)).

The workpiece processing device mounting base can be configured by appropriately combining the components described above.

When the power supply from the drive source to the work processing device is stopped due to a power outage or emergency stop, etc., with the work processing device mounting base configured as described above, even if the Z-axis arm automatically descends during the time it takes for the work processing device to stop and the de-energized brake to activate, the device base 21 will rise by more than the amount of descent, and the work processing device will rise, so the distance between the Z-axis arm 11 and the work 99 or work base 61 will remain constant or increase.

Next, we will explain the workpiece placement table 6 on which the workpiece to be processed by the workpiece processing device is placed. As shown in FIG. 14, the workpiece placement table 6 is composed of a workpiece platform 61 on which the workpiece is placed, a pair of support columns 63, 63 that support the workpiece platform 61 so that it can be raised and lowered, and a workpiece platform lifting mechanism 74 that raises and lowers the workpiece platform 61; more specifically, it lowers the workpiece platform 61 when the workpiece processing device 10 is not energized and raises it when it is energized. The workpiece platform lifting mechanism 74 has an elastic force that changes, or in this case reduces, the spacing between the pair of support columns 63, 63 and directly applies this elastic force to the pair of support columns 63, 63. It also has a workpiece support spacing operating unit 75 that uses the same power supply source as the workpiece processing device 10 to change the spacing between the pair of support columns 63, 63 with a force in the opposite direction to the elastic force of the elastic section 8, thereby changing the spacing in the opposite direction to the direction of change caused by the elastic section 8.

The workpiece platform 61 is hexahedral in shape, with a flat top surface 611 for placing a workpiece on it, and a pair of opposing side surfaces 612, 612 that slope upward toward each other, forming a trapezoid in side view. The workpiece platform 61 is raised and lowered using the workpiece support spacing mechanism 75 and the elastic member 8, and its height from the installation surface 101 is determined by the distance between the pair of supports 63, 63. The workpiece platform 61 descends when the workpiece processing device is powered off and its drive stops. The amount of descent is greater than the amount by which the Z-axis arm automatically descends between the time the workpiece processing device stops and the time the de-energized brake activates. The workpiece platform 61 is supported in an elevated position when the workpiece processing device 10 is energized and in a lowered position when it is de-energized. Therefore, the workpiece platform 61 is supported at a lower height when the workpiece processing device is de-energized than when it is energized.

A pair of opposing pillars 63, 63 support the workpiece platform 61 from below so that it can be raised and lowered, and are installed with a variable spacing. The pair of pillars 63, 63 also support the workpiece platform 61 so that its height position can be changed by changing the spacing between them, moving the platform 61 up and down. An inner surface 632 of one pillar 63 facing the other pillars 63 is provided with a platform installation groove 631 into which the end of the workpiece platform 61 is inserted for installation. The pair of pillars 63, 63 are installed at a distance from each other, and an elastic part 8 that changes the spacing between the pair of pillars 63, 63 is fixed between the inner surfaces 632, 632.

One of the pair of support columns 63, 63, the support column 63 (63a), is fixed to the installation surface 101 of the workpiece installation table 6 with bolts or the like, and the other support column 63 (63b) is installed so that it can move. The movable support column 63 (63b) is provided with a caster 639, and, although not shown, it is preferable to provide a rail or linear guide or the like on the installation surface 101 to facilitate smooth movement of the support column 63 (63b).

The elastic portion 8 has elastic force and is a member for changing, in this case reducing, the distance between the pair of support posts 63, 63. Although not limited to this, a tension spring 81 can be used. The tension spring 81 uses a spring with a spring constant that can lower the work platform 61 a predetermined amount faster than the falling speed of the Z-axis arm of the work processing device. Here, the predetermined amount is a height equal to or greater than the amount of descent of the Z-axis arm when the work processing device is not energized. When the work processing device is not energized, the elastic portion 8 reduces the distance between the pair of support posts 63, 63, lowering the work platform 61. There is no particular limitation on the number of tension springs 81 installed as the elastic portion 8, and one or more may be used.

Although not shown, two blocks may be provided on the side surface 612 of the workpiece platform 61, and two rails may be provided on the top surface 64 of the platform installation groove 631, to reduce friction when the workpiece platform 61 and platform installation groove 631 slide together. The rails are long protrusions extending in the direction of movement of the workpiece platform 61, and the blocks are short protrusions. The rails and blocks overlap, and the blocks slide on the rails when the workpiece platform 61 and platform installation groove 631 slide together. It is also possible to provide rails on the workpiece platform 61 and blocks on the platform installation groove 631, or to provide either rails or blocks.

The work support spacing actuator 75 has a pressing force that changes the spacing between the pair of supports 63, 63, in the opposite direction to the elastic force of the elastic portion 8 that changes the spacing between the pair of supports 63, 63, and is equipped with a push solenoid 38. The work support 61 is moved upward by the pressure of the push solenoid 38, which also exerts a pressing force that moves the pair of supports 63, 63 horizontally. The push solenoid 38 is a component that moves the work support 61 up and down and uses the same power supply as the work processing device (not shown). When energized, the plunger is attracted, causing the push bar 381 to protrude and abut against the underside of the work support 61, pressing it upward. When deenergized, the plunger is not attracted, and the push bar 381 does not press against the work support 61. The push solenoids 38 are installed on the opposing inner surfaces 632, 632 of the pair of supports 63, 63, respectively. Furthermore, when the push solenoid 38 is energized, the pushing force of the push solenoid 38 is set to be greater than the elastic force of the tension spring 41 serving as the elastic portion 4. When the work processing device is energized, the push solenoid 38 widens the gap between the pair of support columns 63, 63, raising the work platform 61. Note that the push solenoid 38 of the work support spacing operating portion 75 uses the same power supply as the work processing device 10, and is therefore energized when the work processing device 10 is energized and de-energized when the work processing device 10 is not energized. Note that, although two push solenoids 38 are installed in the illustrated embodiment, the number is not particularly limited and may be one or three or more.

The platform installation groove 631 is a structure that stores the tip of the work platform 61 so that it can move up and down, holding it between the supports 63, 63, and converting the horizontal movement of the support 63 into up and down movement of the work platform 61. The top surface 64 is formed with an inclination toward the back to match the inclination of the side surface 612 of the work platform 61. Both ends of the work platform 61 are inserted into the platform installation groove 631 of the support 63 and installed.

The side surface 612 of the workpiece platform 61 and the upper surface 64 of the platform installation groove 631 are inclined in a flat manner so that they slide in surface contact, but although not shown, they may also be inclined in a curved manner. Furthermore, although both the side surface 612 of the workpiece platform 61 and the upper surface 64 of the platform installation groove 631 are inclined, although not shown, they may also be inclined in a manner such that only one of them is inclined.

Next, the operation of the workpiece setting table 6 will be explained. Before electricity is supplied to the workpiece processing device from the drive supply source, as shown in Figure 14 (b), the pair of support columns 63, 63 are pulled by the elastic force of the tension spring 81, and both ends of the workpiece table 61 are housed in the table setting grooves 631 of the support columns 63, respectively. The pair of support columns 63, 63 support the workpiece table 61, and the workpiece table 61 acts as a tension rod to maintain the distance between the pair of support columns 63, 63.

When electricity is supplied to the workpiece processing device from the drive power supply and the motor is energized, the push solenoid 38, which uses the same power supply as the workpiece processing device's drive power supply, is energized and activated. The push bar 381 then protrudes and comes into contact with the underside of the workpiece platform 61, pressing it upward.

When the workpiece platform 61 is pressed upward, it presses the pair of support posts 63, 63 laterally. Because the pressing force of the push solenoid 38 is set to be greater than the elastic force of the tension spring 81, the inclined side surfaces 612 at both ends of the workpiece platform 61 slide up along the inclined upper surfaces 64 of the platform installation grooves 631 of the support posts 63, countering the elastic force of the tension spring 41 and widening the gap between the pair of support posts 63, 63.

As shown in Figure 14(a), the workpiece platform 61 is positioned at a higher height from the installation surface 101 than the height of the workpiece platform 61 before electricity is supplied to the workpiece processing device from the drive supply source. Because power is supplied to the workpiece processing device 10, the workpiece processing device 10 operates with the non-excitation operating brake released, and the workpiece is processed.

When the power supply from the drive source to the work processing device is stopped due to a power outage or other reason, and the work processing device stops while it is de-energized, the power supply to the push solenoid 38 is also stopped, and the push bar 381 of the push solenoid 38 stops pressing against the work platform 61. As a result, as shown in Figure 14(b), the pair of supports 63, 63 are pulled by the elastic force of the tension spring 81, and both ends of the work platform 61 are respectively housed in the platform installation grooves 631 of the supports 63. The pair of supports 63, 63 support the work platform 61, and the work platform 61 acts as a tension rod to maintain the distance between the pair of supports 63, 63. At this time, because one support 63a is fixed, the unfixed support 63b moves toward support 63a, reducing the distance between the supports 63, 63.

When the distance between the pair of support posts 63, 63 decreases, the workpiece platform 61 descends while its inclined side surface 612 slides along the inclined upper surface 64 of the platform installation groove 631. Therefore, even if the Z-axis arm automatically descends during the time it takes for the workpiece processing device to stop operating due to a power outage or other reason, the workpiece platform 61 will descend by more than the amount of automatic descent until the de-energized brake is activated, and the distance between the Z-axis arm 11 and the workpiece 99 or workpiece platform 61 will remain constant or increase.

Furthermore, another embodiment of the work processing device mounting base will be described. Descriptions of components similar to those described above will be omitted, and identical members will be described with the same reference numerals. As shown in FIG. 15, the work setting base 600 comprises a work platform 601 on which a work is placed, a pair of support columns 63, 63 that support the work platform 601 so that it can be raised and lowered, and a work platform lifting mechanism 74 that raises and lowers the work platform 601; more specifically, lowers the work platform 601 when the work processing device is de-energized and raises it when it is energized. The work platform lifting mechanism 74 comprises an elastic section 8 that directly applies an elastic force to the pair of support columns 63, 63 to change the spacing between the pair of support columns 63, 63, thereby reducing the spacing, and a work support spacing operating section 75 that uses the same power supply as the work processing device 10 and has a pressing force that changes the spacing between the pair of support columns 63, 63, thereby increasing the spacing.

The work support spacing action unit 75 is composed of a push solenoid 38 that presses the support 3 from the side. The push solenoid 38 is fixed to the inner surface 632 of one support 63 and presses the inner surface 632 of the other support 63.

The workpiece platform 601 is U-shaped when viewed from the side, with the top surface 611 formed flat for placing the workpiece, and a pair of opposing inner surfaces 661, 661 formed to slope downward and outward. The workpiece platform 601 is raised and lowered using the workpiece support spacing mechanism 75 and the elastic member 8, and its height from the installation surface 101 is determined by the distance between the pair of supports 63, 63.

A pair of opposing pillars 63, 63 are members that support the workpiece platform 601 from below so that it can be raised and lowered. They are installed at an adjustable distance, and by adjusting this distance, the workpiece platform 601 can be moved up and down, supporting it so that its height position can be changed. The upper surface 636 of each pillar 63 is inclined in the opposite direction to the other pillars 63, corresponding to the inclination of the inner surface 661 of the workpiece platform 601.

Next, the operation of the workpiece setting table 600 of the embodiment shown in Figure 15 will be described. When electricity is supplied from a drive source to a workpiece processing device (not shown), the motor is energized, and workpiece processing is being performed, electricity is passed through the push solenoid 38, which uses the same power source as the workpiece processing device's drive source, driving the push solenoid 38, causing the push bar 381 to protrude and come into contact with the inner surface 632 of the opposing support column 63, pressing it laterally.

When the support columns 63 are pressed laterally, the gap between the pair of support columns 63 expands against the elastic force of the tension springs 81. At this time, the inner surface 661 of the workpiece platform 601 slides up along the upper surface 636 of the support columns 63, causing the workpiece platform 601 to rise. As shown in Figure 15(a), the workpiece platform 601 is now positioned at a higher height from the installation surface than it was before electricity was supplied to the workpiece processing device from the drive supply source. Because power is supplied to the workpiece processing device, the workpiece processing device operates with the de-energized brake released, and the workpiece is processed in this state.

When the power supply from the drive source to the work processing device is stopped due to a power outage or emergency stop, the work processing device becomes de-energized and stops, and the power supply to the push solenoid 38 is also stopped, causing the push bar 381 of the push solenoid 38 to stop pressing against the support 63. Then, the elastic force of the tension spring 81 reduces the gap between the pair of support columns 63, 63, and the work platform 601 descends while the inclined inner surface 661 slides along the inclined upper surface 636 of the support column 63 (Figure 15(b)).

Next, another embodiment of the workpiece placement table will be described. Descriptions of the same components as those described above will be omitted, and the same reference numerals will be used to designate the same components. As shown in FIG. 16 , the workpiece placement table 60 includes a pair of spaced-apart support columns 63, 63, and a workpiece platform lifting mechanism 74 that raises and lowers the workpiece platform 61. Specifically, the workpiece platform lifting mechanism 74 lowers the workpiece platform 61 when the workpiece processing device 10 is de-energized and raises it when it is energized. The workpiece platform lifting mechanism 74 has an elastic force that increases the spacing between the pair of support columns 63, 63, and applies this elastic force to the pair of support columns 63, 63. The workpiece platform lifting mechanism 74 also includes a push solenoid 38 installed on the outside of the pair of support columns 63, 63, which acts as a workpiece support spacing operating unit 75 that applies a pressing force, in this case, to the pair of support columns 63, 63 with a force in the opposite direction to the elastic force of the compression spring 82 serving as the elastic member 8, using the same power supply source as the workpiece processing device (not shown).

Next, the operation of the workpiece setting table of the embodiment shown in Figure 16 will be described. When electricity is supplied from the drive source to the workpiece processing device (not shown), the motor is energized, and workpiece processing is being performed, electricity is passed through the push solenoid 38, which uses the same power source as the workpiece processing device's drive source, driving the push solenoid 38, causing the push bar 381 to protrude and come into contact with the outer surface 637 of one support column 63, pressing it toward the other support column 63.

When the support pillars 63 are pressed laterally, the distance between the pair of support pillars 63, 63 decreases against the elastic force of the compression spring 82. As shown in Figure 16(a), the workpiece platform 61 is positioned at a higher height from the installation surface than it was before electricity was supplied to the workpiece processing device from the drive supply source. Because power is supplied to the workpiece processing device, the workpiece processing device operates with the non-excitation operating brake released, and the workpiece is processed in this state.

When the power supply from the drive source to the work processing device is stopped due to a power outage or other reason, the power supply to the push solenoid 38 is also stopped, and the push bar 381 of the push solenoid 38 stops pressing against the support 63. Then, the elastic force of the compression spring 82 widens the gap between the pair of support columns 63, 63, and the work platform 61 descends while the inclined side surface 619 slides along the inclined upper surface 639 of the support column 63 (Figure 16(b)).

Furthermore, another embodiment of the workpiece setting table will be described. Descriptions of the same components as those described above will be omitted, and the same reference numerals will be used to describe the same components. As shown in Figure 17, the workpiece setting table 601 does not have the above-mentioned table setting groove, and instead has a pair of spaced-apart support columns 63, 63 fixed at a predetermined distance without changing the spacing between them. The workpiece setting table 601 is configured with a workpiece table lifting mechanism 74, which includes a tension spring 83 as an elastic part 8 that directly applies an elastic force to the workpiece table 61 to change the height position of the workpiece table 61, in this case, lowering it, and a push solenoid 38 as a workpiece support spacing operating part 75 that has a pressing force to change the height position of the workpiece table 61, in this case, raising it. The workpiece table 61 is supported from the sides and below by the pair of support columns 63, 63 and the tension spring 83. Additionally, a flat guard 92 may be provided extending vertically from the side end of the support column 63 toward the other support columns 63 over the range of movement of the workpiece table 61 to assist in supporting the workpiece table 61.

The push solenoid 38 uses the same power supply as the work processing device (not shown) to push the workpiece platform 61 upward with a force in the opposite direction to the elastic force of the tension spring 83, thereby changing the height position of the workpiece platform 61. When current is applied to the push solenoid 38, the pushing force of the push solenoid 38 is set to be stronger than the elastic force of the tension spring 83. A mounting member 68, composed of a linear member such as a plate or rod, is attached to the inner surface 632 of the support 63 to install the push solenoid 38 below the workpiece platform 61. The push solenoid 38 is fixed to the mounting member 68 and held below the workpiece platform 61. The tension spring 83 is also fixed at both ends to the underside of the workpiece platform 61 and the mounting member 68.

The support pillar 63 also has a stopper 689 that extends below the workpiece platform 61 to prevent the workpiece platform 61 from moving and to prevent the workpiece platform 61 from coming into contact with the push solenoid 38 when it is lowered, thereby preventing damage to the push solenoid 38. It is also possible to lengthen the push bar 381 of the push solenoid 38 without providing the stopper 689, and to set the spring constant of the tension spring 83 so that the workpiece platform 61 does not come into contact with the push solenoid 38 when it is lowered.

Although not shown, it is also possible to configure the workpiece platform 61 to descend solely by its own weight, without installing the tension spring 83 as the elastic portion 8.

Next, the operation of the workpiece setting table 601 of the embodiment shown in Figure 17 will be described. When electricity is supplied from the drive source to the workpiece processing device (not shown), the motor is energized, and workpiece processing is being performed, electricity is passed through the push solenoid 38, which uses the same power source as the workpiece processing device's drive source, driving the push solenoid 38, causing the push bar 381 to protrude and come into contact with the underside of the workpiece platform 61, pressing it upward.

When the workpiece platform 61 is pressed upward, it rises against the elastic force of the tension spring 83, changing its height position. As shown in Figure 17(a), the workpiece platform 61 is now positioned at a higher height from the installation surface than it was before electricity was supplied to the workpiece processing device from the drive supply source. Because power is supplied to the workpiece processing device, the workpiece processing device operates with the de-energized brake released, and the workpiece is processed in this state.

When the power supply to the workpiece processing device from the drive source is stopped, the power supply to the push solenoid 38 is also stopped, and the push bar 381 of the push solenoid 38 stops pressing against the workpiece platform 61. Then, due to the elastic force of the tension spring 83 and the weight of the workpiece platform 61, the workpiece platform 61 descends (Figure 17(b)).

Furthermore, another embodiment of the workpiece setting table will be described. Descriptions of the same components as those in the embodiment shown in Figure 17 will be omitted, and the same reference numerals will be used to designate the same components. As shown in Figure 18, the workpiece setting table 602 is configured so that the spacing between a pair of support columns 63, 63 installed at a distance from one another is not changed. The workpiece setting table 602 is configured to include a workpiece table lifting mechanism 74, which includes a compression spring 84 as an elastic part 8 that applies an elastic force to the workpiece table 61 to change the height position of the workpiece table 61, in this case lowering it, and a push solenoid 38 as a workpiece support spacing operating part 75 that changes the height position of the workpiece table 61, in this case raising it.

The workpiece platform 61 is supported from below by a pair of support columns 63, 63 and a push solenoid 38, and from above by a compression spring 84. Alternatively, the inner surface 632 of the support column 63 may be provided with a platform installation groove 633 extending vertically across the range of movement of the workpiece platform 61, and a mounting protrusion 613 may be provided on the side of the workpiece platform 61 that can be inserted into the platform installation groove 633. The mounting protrusion 613 can be inserted into the platform installation groove 633 to assist in supporting the workpiece platform 61 from the side. The lower end of the platform installation groove 633 also serves as a stopper that prevents the workpiece platform 61 from moving and prevents contact with the push solenoid 38 and damage to the push solenoid 38 when the workpiece platform 61 is lowered.

The push solenoid 38 uses the same power supply as the work processing device (not shown) to push the workpiece table 61 upward with a force in the opposite direction to the elastic force of the compression spring 84, thereby changing the height position of the workpiece table 61. When the push solenoid 38 is energized, the pressing force of the push solenoid 38 is set to be stronger than the elastic force of the compression spring 84.

The push solenoid 38 is fixed to a mounting member 68 and held below the workpiece table 61. The support pillar 63 is provided with an L-shaped compression spring mounting member 65 for installing a compression spring 84 above the workpiece table 61. The compression spring 84 is fixed between the upper surface of the workpiece table 61 and the compression spring mounting member 65, and is held above the side end of the workpiece table 61. A compression spring mounting member 65 is installed on each of the pair of support pillars 63, 63, and a compression spring 84 is fixed to each.

Although not shown, it is also possible to configure the workpiece platform 61 to descend solely by its own weight, without installing a compression spring 84 as the elastic portion 8.

Next, the operation of the workpiece setting table 602 of the embodiment shown in Figure 18 will be described. When electricity is supplied from the drive source to the workpiece processing device (not shown), the motor is energized, and workpiece processing is being performed, electricity is passed through the push solenoid 38, which uses the same power source as the workpiece processing device's drive source, driving the push solenoid 38, causing the push bar 381 to protrude and come into contact with the underside of the workpiece platform 61, pressing it upward.

When the workpiece platform 61 is pressed upward, it rises against the elastic force of the compression spring 84, changing its height position. As shown in Figure 18(a), the workpiece platform 61 is now positioned at a higher height from the installation surface than it was before electricity was supplied to the workpiece processing device from the drive supply source. Because power is supplied to the workpiece processing device, the workpiece processing device operates with the non-excitation operating brake released, and the workpiece is processed in this state.

When the power supply to the workpiece processing device from the drive source is stopped, the power supply to the push solenoid 38 is also stopped, and the push bar 381 of the push solenoid 38 stops pressing against the workpiece platform 61. Then, due to the elastic force of the compression spring 84 and the weight of the workpiece platform 61, the workpiece platform 61 descends (Figure 18(b)).

The workpiece placement table can be configured by appropriately combining the components described above.

When the power supply from the drive source to the workpiece processing device is stopped due to a power outage or other reason, the workpiece setting table configured as described above will be de-energized, causing the workpiece processing device to stop, and during the time it takes for the non-excitation brake to activate, even if the Z-axis arm automatically lowers, the workpiece platform 61 will lower by more than the amount of lowering, so the distance between the Z-axis arm 11 and the workpiece 99 or workpiece platform 61 will remain constant or increase.

If the workpiece processing table 1 is configured to raise the device base 21 of the workpiece processing device mount 2 when the workpiece processing device 10 is de-energized, it does not need to have a configuration to lower the workpiece base 61 of the workpiece setting table 6. If the workpiece setting table 6 is configured to lower the workpiece base, it does not need to have a configuration to raise the device base 21 of the workpiece processing device mount 2, but it may be configured with both a configuration to raise the device base 21 of the workpiece processing device mount 2 and a configuration to lower the workpiece base 21 of the workpiece setting table 6. These configurations constitute a distance expansion mechanism that expands the distance between the device base 21 and the workpiece base 61 in the up-down direction (vertical direction).

The present invention is not limited to applications that prevent damage to industrial machinery or workpieces due to the lowering of the Z-axis arm, but also makes it possible to expand the operating range of the Z-axis arm of industrial machinery by arbitrarily controlling the ascent of the equipment base 21 and the descent of the workpiece base 61.

The present invention, as described above, has improved the problems with industrial machinery, making it easier and safer to use, and can be useful in a variety of manufacturing industries that use industrial machinery.

DESCRIPTION OF SYMBOLS 1 Workpiece processing table 10 Workpiece processing device 11 Z-axis arm 100 Workpiece processing system 2 Workpiece processing device mounting base 21 Device base 218 Block 3 Support 318 Rail 35 Support spacing retaining portion 36 Retaining portion groove 37 Push solenoid 38 Push solenoid 4 Elastic portion 41 Tension spring 6 Workpiece installation table 61 Workpiece base 63 Support 689 Stopper 71 Device base lifting mechanism 72 Device support spacing acting portion 74 Workpiece base lifting mechanism 75 Workpiece support spacing acting portion 8 Elastic portion 89 Stopper

Claims (7)

a device base on which a work processing device for processing the work is installed;
a device base lifting mechanism that lifts the device base when the work processing device is not energized ,
The device base lifting mechanism includes:
an elastic portion having an elastic force that raises the device base;
A pressing unit having a pressing force that lowers the device base when the work processing device is energized;
A work processing device mounting base comprising: 2. The work processing device mounting base according to claim 1, wherein the pressing portion is a push solenoid. a pair of support columns that support the device base so that it can be raised and lowered;
The upper surface of the support column is inclined to correspond to the inclination of the side surface of the device base,
the device base is installed so that a side surface thereof can slide on an upper surface of the support column;
The device base lifting mechanism includes:
3. The work processing apparatus mounting base according to claim 1, wherein the distance between the pair of support columns is variable. a workpiece table on which a workpiece to be processed by the workpiece processing device is placed;
a workpiece platform lifting mechanism that lowers the workpiece platform when the workpiece processing device is de-energized ;
The workpiece platform lifting mechanism includes:
an elastic portion having an elastic force that lowers the workpiece support portion;
A pressing unit having a pressing force that raises the workpiece table when the workpiece processing device is energized;
A workpiece setting table comprising: 5. The workpiece setting table according to claim 4, wherein the pressing portion is a push solenoid. A pair of support columns are provided to support the workpiece table so that the workpiece table can be raised and lowered,
The support pillar has an inclined surface corresponding to the inclination of the side surface of the workpiece table,
The workpiece table has a side surface slidably mounted on the inclined surface of the support column,
The workpiece platform lifting mechanism includes:
6. The workpiece setting table according to claim 4, wherein the distance between the pair of support columns is variable. The workpiece processing device mounting base according to any one of claims 1 to 3, further comprising a device base on which a workpiece processing device for processing a workpiece is installed.
and/or
The workpiece setting table according to any one of claims 4 to 6, which is provided with a workpiece table on which a workpiece to be processed by the workpiece processing device is set,
a distance enlarging mechanism for enlarging the vertical distance between the device base and the workpiece base when the workpiece processing device is not energized ;
A workpiece processing table comprising: