JPH0764433B2 - Work transfer method and apparatus for sheet metal processing machine - Google Patents

Description

The present invention relates to a work transfer method for a sheet metal working machine and an apparatus therefor, and can be used as a work transfer apparatus such as a turret punch press and a shearing machine. .

(Prior Art) A material loading device for loading a sheet metal material such as a plate material in a sheet metal processing machine and a product unloading device for unloading a processed product face each other on the front side and the rear side centering on the processing machine. It is provided on the side where the material is carried in, and the product carried out by the product carrying-out device is carried out in a direction opposite to the material carrying-in device. In addition, even if these product unloading devices are provided on the loading device side,
This product carry-out device is arranged side by side on the side of the material carry-in device.

(Problems to be Solved by the Invention) In the conventional techniques as described above, the material loading device and the product unloading device are both arranged in a plane, and
Since the product pallet chamber for accommodating the product carried out by the product carrying device is provided at a different plane position from the material pallet chamber for supplying the material to the material carrying-in device, it is possible to transfer the material from the structure. The form was complicated and required a large space.

According to the present invention, such a material pallet and a product pallet are set at the same loading / unloading position, and the material loading device and the product unloading device that reciprocate between the processing device and the processing device are provided in the same transportation path, and the transportation device is used. The purpose is to simplify and reduce the installation space of the entire device.

[Structure of the Invention] (Means for Solving the Problems) According to the present invention, materials are loaded from a plurality of material pallet shelves provided on an upper portion of a work storage device by a pallet elevator provided on a side portion of the work storage device. Material palette
While once supported by a retractable pallet support device provided in the lower part of the work storage device, while the work transfer device carries the material on the material pallet into the processing device and the material is processed by this processing device. In addition, the material pallet is transferred from the pallet support device to the pallet elevator, the pallet support device is retracted, and the vertically movable product pallet provided in the lower part of the work storage device is lifted up and processed by the processing device. The product is carried out by the work transfer device and placed on the product pallet, and the product pallet is lowered, then the pallet support device is returned to its original position, and the material pallet is transferred from the pallet elevator to the pallet support device and supported. It is a method of transferring a work of a sheet metal processing machine.

Further, the present invention, by the side of the pallet elevator in the work storage device, and by the pallet lift of the lower part, while alternately putting in and out the material pallet for loading the material and the product pallet for loading the processed product, A support for supporting the pallet when the pallet lift is moved up and down in a pallet chamber provided with a transfer device for loading the material on the material pallet to the front processing device and then unloading the processed product and placing it on the product pallet. The work transfer device of the sheet metal processing machine is configured by switching from the attitude to the withdrawal attitude to withdraw to the unsupported position and providing a pallet supporting device for supporting both ends of the material pallet or the product pallet supplied to the pallet chamber.

(Operation) For example, supply a material pallet with a pallet elevator,
An example of setting the product pallet to be supplied by the pallet lift will be described. A material pallet loaded with materials is supported by a pallet elevator on a pallet supporting device in the pallet chamber. Further, the carrying device sucks the uppermost material on the material pallet and carries it into the processing device in the front, and the processing by this processing device is performed. When this processing is completed, the processed product is carried out by the carrying device to the outer pallet chamber.

In this way, the transfer device temporarily moves the material pallet in the pallet chamber to the side pallet elevator until the material is loaded and the product is unloaded, and the pallet support device in the supporting position is moved to the retracted position. After switching, the product pallet is lifted to the pallet chamber by the pallet lift on the lower side, and the product carried out by the transport device is placed on the lifted product pallet.

The product pallet that has received the product is lowered by the pallet lift while the pallet support device is in the retracted posture. After this descending, the pallet supporting device returns to the supporting posture,
A material pallet is supplied from the side pallet elevator to the pallet chamber and is supported on the pallet supporting device. Thereafter, as described above, the carrying device sucks the uppermost material on the material pallet and carries it into the processing device.

In this way, in the pallet chamber, the material pallet and the product pallet are alternately put in and taken out from the side pallet elevator and the lower pallet lift while switching the pallet support device between the support posture and the retracted posture. The carrying device alternately carries the material on the material pallet into the processing device and unloads the product from the processing device onto the product pallet.

(Embodiment) An embodiment of the present invention will be described in detail below with reference to the drawings.

Referring to FIG. 1 and FIG. 2, a product pallet 11 in which a product 9 is lifted and lowered by a pallet lift 3 is provided at the bottom of a work storage device 21 mainly composed of a frame having a predetermined width, length and height. A product collecting chamber 23 is provided above which is accumulated. On the upper side of the product accumulation chamber 23, there is provided a pallet chamber 17 in which the material pallet 7 in which the materials 5 are accumulated and the product pallet 11 rising from the product accumulation chamber 23 are alternately positioned. On the upper side of the pallet chamber 17, there is a transport rail 25 which is temporarily installed in a horizontal state between a turret punch press which is a processing device 13 on the front side (on the right side in FIG. 1), and is suspended on the transport rail 25. A transfer chamber 29 having a transfer device 15 composed of a loader 27 that can be lowered and moved back and forth (X axis) is provided. On the upper side of the transfer chamber 29, a multi-tiered material pallet 7 and a pallet rack 31 for accommodating the product pallets 11 in a freely movable manner are provided.

On the side of the work storage device 21, there is provided a pallet elevator 1 for mounting and lowering a material pallet 7 and a product pallet 11. The pallet elevator 1 goes up and down between the pallet rack 31 of the work storage device 21 and the pallet chamber 17, and the material pallet 7 to the pallet chamber 17 is moved to the pallet chamber 17.
And transfer of the product pallet 11 to the pallet rack 31.

The loading pad 33 or the positioning pad 35 of the loader 27 that constitutes the transport device 15 is configured to use a vacuum pad, but it may be configured to be a magnet type that attracts a sheet metal material by attracting an electromagnet. As shown in FIGS. 3, 4, and 5, the loader body 47 is provided with a pinion 39 that is rotated by a drive device 37 including a forward / reverse drive motor. A slider 43 that meshes with a rack 41 provided on the transfer rail 25 and is integrated with a loader body 47 makes a hanger rail.
It is suspended slidably on 45. The loader body 47 is configured to be movable back and forth, that is, in the X-axis direction along the transport rail 25 by driving the pinion 39. Also, this loader body
The loader beam 49 provided with the respective loading pads 33 and the positioning pads 35 is provided on the 47 so as to be moved in the vertical direction (hereinafter, referred to as the Z-axis direction) by the expansion and contraction of the vertical cylinder 53 by being guided by the vertical guide 51. Has been. Further, the loader body 47 is provided with a carry-out clamp 55 that holds the end edge of the product 9 from above and below by a clamp rail 57 so as to be movable in the front-rear direction (hereinafter, referred to as the X-axis direction), and a rodless cylinder 59. Is configured to move in the X-axis direction.

The loader beam 49 is provided horizontally with respect to the loader body 47 in the left-right direction (hereinafter referred to as the Y-axis direction), and the loading pads 33 are hung at fixed intervals so that air is sucked from the vacuum pump. The upper surface of the plate material, which is the material 5, can be adsorbed and raised. The loader beam 49 and the loading pad 33
May be arranged in a plurality of rows in addition to a single row. By the expansion and contraction control of the upper and lower cylinders 53, the loader beam 49 is
Guided by a pair of left and right upper and lower guides 51, the upper and lower guides 51 are moved up and down by a certain height in parallel. Further, the positioning pad 35 is one end portion of the loader beam 49, and is the processing device shown in FIG.
The machining table 61 is provided so as to face the origin position side, and is attached by a bracket 63. Also, the fifth
X for this bracket 63 as shown
A sliding member 67 that is slidable in the axial direction and pulled rearward by a spring 65 supports and guides a positioning pad 35 in a vertically slidable manner, and a vertical cylinder that moves the positioning pad 35 up and down. 69 are provided. Moreover, like the carry-in pad 33, the upper surface of the material 5 is sucked. Reference numeral 71 denotes a moving cylinder of the positioning pad 35, which is configured to move the positioning pad 35 forward and deflate air from the moving cylinder 71 to move the positioning pad 35 backward by the spring 65. or,
The carry-out clamp 55 holds the product 9 from the upper and lower surfaces, and includes a lower scoop upper body 73 and an upper pusher 75.
The lower side of the loader body 47 is attached to a clamp mount 77 that is guided along a clamp rail 57 provided in the X-axis direction. The pusher 75 is configured to move up and down by a cylinder 79 to sandwich the product 9 between the pusher 75 and the scooping body 73.

Between the pallet chamber 17 and the product accumulating chamber 23, as shown in FIGS. 1 and 6, a pair of pallet supporting devices 19 are provided at the front and rear. A pair of front and rear guide angles 81 are rotatably provided around a pin 83 along the Y-axis direction, and the guide angle is controlled by the expansion and contraction control of a cylinder 87 pivotally attached to a column frame portion of the work storage device 21 by a pivot pin 85.
81 is a support posture A for supporting the pallet (see FIG. 6)
And the retracted posture B (see FIG. 7) for retracting the product pallet 11 to a position where it can be raised and lowered. When the product pallet 11 is lifted and lowered by the pallet lift 3, the left and right guide angles 81 are operated in the retracted posture B to support the material pallet 7, the product pallet 11 and the like, and to move and guide the material pallet 7, This is a configuration in which the support posture A is set.

Between the pallet chamber 17 and the transfer chamber 29, a scooping roller 89 that reciprocates horizontally in the X-axis direction as shown in FIG.
The uppermost material 5 on the material pallet 7 in the pallet chamber 17 is scooped by the forward movement of the scooping roller 89, and this scooping is performed while separating from the lower material 7. The material 7 is conveyed forward. The scooping roller 89 is provided between the pair of right and left chains 91 at a regular interval in the front-rear direction and substantially the same length as the front-rear width of the pallet chamber 17. The rotation is controlled.

On the front side (front side in FIG. 1) of the work storage device 21,
An intermediate table 95 is provided on substantially the same plane as the scooping roller 89, and a processing table 61 of a processing device 13 such as a turret punch press is provided in front of the intermediate table 95. On the one side of the rear end of the machining table 61, there are provided a positioning pin 97 for positioning the origin, which projects from the lower side to the surface of the machining table 61, and a machining clamp 99 for positioning in the Y axis direction. ing. By abutting the rear end edge and the lateral end edge of the material 5 carried onto the processing table 61 against these positioning pins 97, the processing clamp 99, etc., the origin position for starting the processing control of the material 5 can be determined. . On the side of the horizontal positioning of the processing table 61, the processing clamp 99 for sandwiching the lateral end portion of the material 5 and controlling the processing movement is provided, and the material 5 carried by the loader 27 is sandwiched and inherited, or The processed product 5 is delivered to the loader 27.

Next, the operation of this embodiment having the above configuration will be described. The material pallet 7 on which the sheet metal material 5 is loaded is accommodated in the pallet rack 31 of the work storage device 21, and the product pallet 11 is placed on the pallet lift 3. In this state, the material 5 is carried in between the work storage device 21 and the processing device 13 and the product 9 is carried out by the following steps.

(1) Lowering of pallet elevator 1: The material pallet 7 loaded with a predetermined material 5 (for example, a wide material) is pulled out from the pallet rack 31 of the storage device 21 by the drawer device provided in this pallet elevator 1, and the pallet elevator 1 And then descend to the pallet chamber 17.

(2) Pallet chamber 17 of material pallet 7: When the pallet elevator 1 stops descending, the material pallet 7 is moved and placed on the guide angle 81 of the pallet chamber 17 by the extrusion device provided in the pallet elevator 1. The pallet elevator 1 faces the pallet chamber 17 and stops.

(3) Lowering of the loader 27: The loader beam 49 of the loader 27 waiting in the upper part of the transfer chamber 29 is lowered by the upper and lower cylinders 53, and the loading pad 33 is placed on the upper surface of the uppermost material 5 on the material pallet 7. Adhere and adsorb. At this time, the positioning pad 35 may be sucked at the same time.

(4) Lifting of the carry-in pad 33: When the carry-in pad 33 that has adsorbed the material 5 is slightly lifted by the upper and lower cylinders 53,
The rear end of the material 5 is slightly floated from the upper surface of the lower material 5 to form a gap.

(5) Separation and loading of the material 5: By driving the motor M,
The hoisting roller 89 at the rear lower position of the pallet chamber 17
When is rotated forward, the scooping roller 89 is intervened in the gap of the lower surface of the uppermost material 5 levitated from the lower material 5, and the uppermost material 5 is placed on the upper surface. The lower surface material 5 side is separated. When the front end of the scooping roller 89 reaches the front end of the pallet chamber 17, the uppermost material 5 is completely separated from the lower material 5. The loader 27 sucked by the carry-in pad 33 is guided by the drive device 37 to the guide rail 25 and moved forward by the rotation of the pinion 39, so that the material 5 is carried onto the processing table 61. After loading, the scooping roller 89 is pulled back to the lower rear portion of the pallet chamber 17.

(6) Origin positioning set: loader 27 is the processing table
When the material 5 is loaded on the upper surface of the 61, the positioning pin 97 projects to the upper surface of the descending table 61. A processing clamp 99 stands by on the side of the processing table 61.

(7) Retraction of the positioning pad 35: The material 5 on the processing table 61 loaded by the loader 27 is guided by the processing clamp 99 at its lateral edge, and the suction by the loading pads 33 is released. The positioning pad 35 descends by the upper and lower cylinders 69, is attracted to the upper surface of the material 5, and is slightly pulled to the rear side by the tension of the spring 65 by the moving cylinder 71. As a result, the vertical and horizontal edges of the material 5 are aligned with the X-axis positioning pin 97.
Also, the origin position is determined by accurately hitting the machining clamp 99.

(8) Processing by sandwiching the processing clamp 99: When the origin positioning is completed, the processing clamp 99 holds the material 5 and the suction of the positioning pad 35 is released, and the vertical cylinder 69
Is slightly raised by. The processing clamp 99 is subjected to predetermined processing by the processing device 13 while being controlled to move together with the movable table portion of the processing table 61 while holding the material 5.

(9) Retracting and Standby of Loader 27: The loader 27 carries in the material 5 onto the upper surface of the processing table 61, performs the replacement by the processing clamp 99, and then moves back onto the intermediate table 95 and temporarily waits.

(10) Pallet chamber 17 of product pallet 11: While the material 5 is processed by the processing apparatus 11 as described above, the material 5 which is the highest-ranked material 5 is separated and loaded by the loader 27 in the step (2). As shown in FIGS. 6 and 7, the pallet 7 is guided by the guide angle 81 in the support posture A and is transferred to the pallet elevator 1 waiting on the side, and further the guide angle 81 is moved by the cylinder 87. Retreat posture B
The product pallet 11
Is raised from the product accumulating chamber 23 to the pallet chamber 17, the guide angle 81 is returned to the supporting posture A again, the pallet lift is slightly lowered, and the product pallet 11 is placed on the guide angle 81. In this way, the material pallet 7 and the product pallet 11 are exchanged in the pallet chamber 17.

(11) Advancement of the loader 27: When the processing by the processing device 13 is completed, the loader 27 waiting on the intermediate table 95 above.
Is again moved to the processing table 61 side. This loader 27
The carry-out clamp 55 holds the rear end portion of the processed product 9 held by the processing clamp 99, and after the replacement, the holding by the processing clamp 99 is released.

(12) Retraction of loader 27: When the carry-out clamp 55 holds the product 7, the loader 27 is guided by the transport rail 25 and retracted to the pallet chamber 17. The product 7 may be sucked by the carry-in pad 33 when the loader 27 is retracted.

(13) Release of holding of the carry-out clamp 55: When the hold of the carry-out clamp 55 is released by returning the loader 27 to the pallet chamber 17, the product 7 is placed on the upper surface of the product pallet 11 waiting on the lower side. The loader 27 stands by in the upper rear transport chamber 29 of the pallet chamber 17.

In addition, the product 9 is transferred to the product pallet 11 by the carry-out clamp 55.
When placing on the top, this product pallet 11
Since it is enough to be located at 17, the product pallet at this time
11 does not have to be directly supported on the upper surface of the guide angle 81,
Alternatively, the pallet lift 3 may be maintained in a supported state. At this time, at the raised position of the pallet lift 3, the guide angle 81 is in the retracted posture.

(14) Lowering of product pallet 11: The pallet lift 3 is slightly lifted to lift the product pallet 11 on the guide angle 81. The guide angle 81 in the support posture A is switched to the retracted posture B. Product pallet 11 by pallet lift 3
When is lowered, the inside of the guide angle 81 is lowered to the product accumulating chamber 23. The guide angle 81 returns to the supporting position A again.

(15) Pallet chamber 17 of the material pallet 7: the above step (2)
Due to the action of the pallet, the material pallet 7 from the pallet elevator 1 waiting on the side is again guided by the guide angle.
Guided by 81, it is transferred into the pallet chamber 17 and the replacement with the product pallet 11 is completed.

(16) Repetition of steps (1) to (15): Thereafter, the material 5 by the loader 27 is repeated while repeating the steps (1) to (15).
Are alternately carried out and the products 9 are unloaded, and the processing of all the materials 5 stacked on the material pallet 7 is completed.

(17) Storage of product pallet 11: When the last product 9 is placed on the upper layer of the product pallet 11 in this way, it is transferred to the pallet elevator 1 on the side and the predetermined pallet rack 31
To be housed. The pallet elevator 1 places a new material pallet 7 and supplies it to the pallet chamber 17.

(18) When the material 5 is small: If the material 5 loaded on the material pallet 7 is small, for example, if the materials 5 are stacked side by side on the upper surface of the same material pallet 7, the pallet chamber
The material suction position of the loader 27 with respect to the material pallet 7 in 17 and the material loading position of the loader 27 with respect to the product pallet 11 are determined for the front part and the rear part, respectively. That is, the material 5 at the front position of the material pallet 7 is the processed product pallet.
The product 9 is loaded in the front position or the rear position of 11, and
The material 5 in the rear position is the product 9 in the rear position of the product pallet 11.
To load as.

In this embodiment, the material 5 and the product 9 are placed on the material pallet 7 and the product pallet 11, but a skid may be used instead of these pallets. In the present embodiment, the material 5 is supplied to the pallet chamber 17 by the side pallet elevator 1, and the products 9 are loaded by the lower pallet lift 3.
On the contrary, the material may be supplied by the lower pallet lift, the product pallet on which the product is loaded is received by the pallet conveyor side, and the material pallet and the product pallet may be exchanged.

EFFECTS OF THE INVENTION Since the present invention has the above-mentioned configuration,
It has the following technical effects. That is, in the pallet chamber, the material pallet and the product pallet are alternately put in and taken out from the side pallet elevator and the lower pallet lift. Along with this, the material of the material pallet in this pallet chamber is carried into the processing device while the transport device reciprocates between it and the processing device in front, and the processed product is carried out and loaded on the product pallet. The material pallet and the product pallet alternately supplied by the side pallet elevator and the lower pallet lift are supported by switching between the supporting posture and the retracting posture. Therefore, while the material pallet of the material to be carried into the processing device and the product pallet of the product carried out from the processing device are replaced in the same pallet chamber, the reciprocal transfer process of the same transfer device carries in these materials, In addition, the product can be carried out, the planar place can be narrowed, and the transportation device can be effectively used in the reciprocating process to simplify the process.

[Brief description of drawings]

1 shows an embodiment of the present invention. FIG. 1 is a side view of a work transfer device of a sheet metal working machine according to the present invention, FIG. 2 is a rear view of FIG. 1, and FIG. 3 is FIG. 4 is an enlarged detailed view of an IV arrow portion in FIG. 4, FIG. 4 is a front view of FIG. 3, FIG. 5 is a plan view of FIG. 3, and FIG. 6 is an enlarged detailed view of part of the enlarged side portion, FIG. FIG. 8 is a side view showing the operation of FIG. 6. 1 …… Pallet elevator, 3 …… Pallet lift 5 …… Material, 7 …… Material pallet 9 …… Product, 11 …… Product pallet 13 …… Processing device, 15 …… Conveying device 17 …… Pallet chamber, 19… … Pallet support device 21 …… Work storage device, 23 …… Product accumulation chamber 25 …… Transport rail, 27 …… Loader 29 …… Transport chamber, 31 …… Pallet shelf 33 …… Putting pad, 35 …… Positioning pad 47 …… Loader body, 49 …… Loader beam 55 …… Unload clamp, 61 …… Machining table 81 …… Guide angle, 83 …… Pin 85 …… Pivot pin, 87 …… Cylinder A …… Support posture, B… … Evacuation posture

Claims (2)

[Claims] 1. A material pallet in which materials are loaded from a plurality of material pallet shelves provided in an upper part of the work storage device by a pallet elevator provided in a side part of the work storage device is provided in a lower part of the work storage device. Once supported by the retractable pallet support device, the work transfer device carries the material on the material pallet into the processing device, and while the material is processed by the processing device, the pallet support device transfers The material pallet is transferred to the pallet elevator, the pallet support device is retracted, and the vertically movable product pallet provided in the lower part of the work storage device is raised, and the product processed by the processing device is carried out by the work transfer device. And place it on the product pallet and lower the product pallet, and then return the pallet support device to its original position to remove the material pallet. Workpiece transfer method of sheet metal processing machine, characterized in that to the Tsu Sorted sorting support from the pallet elevator pallet supporting device. 2. A material pallet on which a material is loaded and a product pallet on which a processed product is loaded are alternately taken in and out by a pallet elevator on a side portion and a pallet lift on a lower portion of a work storage device, and these A support posture that supports the pallet when the pallet lift is moved up and down in a pallet chamber provided with a transfer device that carries the material on the material pallet to the front processing device and then unloads the processed product and places it on the product pallet. To a non-supporting position, the work transfer of the sheet metal processing machine, characterized by comprising a pallet support device for supporting both ends of the material pallet or product pallet supplied to the pallet chamber. apparatus.