JPH0821793B2 - Electronic component supply device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component supply device for supplying electronic components to a mounting device or the like for mounting electronic components on a printed circuit board.

[0002]

2. Description of the Related Art Generally, the above-mentioned mounting apparatus includes a board supporting device for positioning and supporting a printed circuit board, a component mounting device for mounting an electronic component on a printed circuit board with a holding mechanism for electronic components, and a component mounting device for the component mounting device. And a component supply device for supplying electronic components.

A component supply unit for holding a large number of electronic components of one type is mounted on a table in a state in which the component supply units of the units are arranged in a line as one type of the component supply apparatus. A supply table, a table guide device for movably guiding the component supply table in a direction parallel to the straight line, and each component supply unit of a plurality of component supply units as a supply position for supplying a component to the component mounting device. Some include a table moving device that moves the component supply table to select a unit to be positioned manually. The component supply units are mounted on the component supply table in the number corresponding to the type or number of electronic components to be mounted on the printed circuit board, and by moving the component supply table, the component supply unit of each component supply unit moves to the printed circuit board of the electronic component. The electronic components are supplied to the component mounting device by being positioned at the supply position in the mounting order.

[0004]

Generally, the type or number of electronic components mounted on one printed circuit board is not so large, but in many cases, the component supply table is provided with the electronic components mounted. Since it is made assuming that the number of types or number is the largest, it will be large, and the table moving device will have to have a large driving force, and since the inertia is large, the responsiveness will be poor and high speed operation will be difficult. There was a problem of inefficiency. In addition, there is a problem in that a large amount of vibration is generated when the component supply table starts to move or stops, the direction of the electronic component may be changed or tilted, and an error in holding the electronic component by the component mounting device may easily occur. Further, when only one component supply table is provided in one mounting device, if there are no electronic components in the component supply unit on the component supply table, the mounting device is stopped and the component supply unit is replaced or There is also a problem that the operating rate of an expensive mounting device is lowered because electronic parts must be replenished. The present invention has been made with the object of obtaining an electronic component supply device capable of solving these problems.

[0005]

To this end, an electronic component supply apparatus according to the present invention comprises: (1) a component supply unit that holds a large number of electronic components of one type, and the component supply units of these component supply units are in a straight line. A plurality of first component supply tables and a plurality of second component supply tables which are respectively mounted on the table in a state of being lined up along a line, and (2) a direction in which the first component supply table and the second component supply table are parallel to the straight line. A common work area for supplying electronic components from each of the plurality of component supply units on the first component supply table and the second component supply table, and first component supply provided on both sides of the work area. A table guide device for guiding the table evacuation area and the second part supply table evacuation area, respectively, and (3) a single table for parts supply A program storage means for storing a control program and a two-unit table control program is provided, and one of the first component supply table and the second component supply table is kept in the save area in accordance with the one-unit table control program. A unit is selected which moves the other to the work area and selectively positions each component supply unit of the plurality of component supply units on the other component supply table at a predetermined supply position 1
Both the first component supply table and the second component supply table are moved to the work area according to the table control mode and the two-table control program, and each of the plurality of component supply units on both the component supply tables is moved. Two-unit table mode for performing unit selection for selectively positioning the component supply unit at a predetermined supply position
A table mover operable in a mode selected from the modes.

One of the preferable usages of the electronic component supply apparatus according to the present invention is to mount a component supply unit holding the same combination of electronic components on the first component supply table and the second component supply table, respectively. , Performing component supply by one component supply table, and when at least one of the plurality of component supply units on the component supply table runs out of electronic components, the component supply table is saved to the save area, In this method, the component supply table that has been in the retreat area until then is moved to the work area and the component is supplied by the component supply table.

Further, a component supply unit holding different combinations of electronic components is mounted on each of the first component supply table and the second component supply table, the component supply is performed by one component supply table, and the component supply is performed. After the planned amount of parts has been supplied by the table, the parts supply table is saved in the save area, and the parts supply table that was in the save area until then is moved to the work area to supply parts by the parts supply table. You can also do

In order to facilitate the implementation of both of these methods of use, the above-mentioned components (1) to (3) are added to the electronic component supply device.
In addition to (4) it is detected that at least one of the plurality of component supply units on the component supply table in the work area runs out of electronic components or has disappeared, while operating in the one-unit table mode. According to the component end detection means and (5) the component end detection by the component end detection means, the table moving device should replace the component supply table in the work area with the component supply table in the save area. Table replacement instructing means for instructing that, (6) supply end detecting means for detecting end of supply of a predetermined amount of parts by the part supply table in the work area during operation in the one-unit table mode,
(7) At least the control program of the program storage means is transferred from the one-unit table control program for component supply by the component supply table in the work area to the save area in response to the detection of supply end by the supply end detection means. Program change for changing to a one-unit table control program for component supply by a certain component supply table, and table replacement for causing the table moving device to replace the component supply table in the work area and the component supply table in the save area It is desirable to provide an automatic setup changing means for performing automatic setup change.

As a more desirable method of using the electronic component supply apparatus according to the present invention, a third mode is selected from the first and second modes of the two supply methods, that is, the first component supply table and A component supply unit holding one group of electronic components is mounted across both second component supply tables, and both component supply tables are moved to the work area to supply components from both component supply tables. There is a method of supplying electronic components while selecting one mode from three modes including the modes to be performed.

To facilitate the implementation of this method of use,
Furthermore the electronic component feeding device of the preferred embodiment, the first
It is desirable to provide a mode selection means for selecting one of the one mode, the second mode and the third mode . Also, mode storage means for storing the mode selected by the mode selection means during component supply in any of the first to third modes , and after the end of the previous component supply,
It is desirable to provide a mode control means for instructing the subsequent component supply in the mode stored in the mode storage means. For the same reason, the single-unit table mode and
Select one of the two table table modes
Mode selection means, 1 unit table mode and 2 units table
Mode during the parts supply by one of the bull mode
Mode storing means for storing the mode selected by the stage
After the end of the previous parts supply, it is stored in the mode storage means.
Mode control to command later parts supply in current mode
It is also desirable to provide means.

The electronic component supply apparatus according to the present invention also includes
Preparation completion detecting means for detecting whether or not the parts supply table in the evacuation area is in a ready state for parts supply,
When the preparation completion detecting unit does not detect the completion of preparation, the replacement of the component supply table by the table moving device is performed despite the component end detection by the component end detection unit or the supply end detection by the supply end detection unit. It is desirable to provide a prohibition table replacement prohibition means.

[0012]

According to the present invention, the size of the first component supply table and the size of the second component supply table are such that one component supply unit is required when there are not many kinds or a large number of electronic components mounted on the printed circuit board. Can be mounted on all tables, and if the types or number of electronic components mounted on the printed circuit board are the largest, the required component supply units can be mounted by using the tables of both component supply tables. In addition to the size, if the table moving device can be operated in both the one-unit table mode and the two-unit table mode, if one component supply table is sufficient to supply the electronic components to be mounted, one of them can be used. Move only the parts supply table,
When the number of electronic components is large, electronic components can be supplied by moving both component supply tables alternately or simultaneously.

When the table moving device is operated in the one-table mode, the parts can be supplied in at least one of the first mode and the second mode. The first mode is a mode suitable for mass production, for example, when there are relatively few types of electronic components to be mounted on one printed circuit board and it is necessary to produce a large number of identical electronic circuits. . The second mode is a mode suitable for a variety of small-quantity production such as a case where the number of types of electronic components to be mounted on one printed circuit board is relatively small and a variety of electronic circuits to be produced is large.

The third mode components can be supplied when the table moving device is operated in the two table mode, and is used when there are many kinds of electronic components to be mounted on one printed circuit board. By using the third mode and the first and second modes, most requirements can be satisfied.

If the component end detection means and the table replacement command means are provided in the electronic component supply device, the replacement of the component supply table is automatically performed during the component supply in the first mode, and the supply end detection is performed. If the means and the automatic setup changer are provided, the supply change of the electronic component is automatically performed when the component is supplied in the second mode. Further, if the preparation completion detecting means and the table replacement prohibiting means are provided, it is possible to prevent the component supply table which has not been prepared yet from being moved to the work area.

[0016]

In the component supply apparatus of the present invention, the sizes of the first component supply table and the second component supply table are made assuming that the type or number of electronic components to be supplied is the largest. Since it can be made smaller than before, it has good responsiveness, can be moved at high speed, can improve work efficiency, and requires less vibration at the start and stop of movement. Therefore, the direction of the electronic component is less likely to change or tilt, and the effect of reducing component supply errors can be obtained. And
When there are many types of electronic components to be supplied, those electronic components are mounted across both the first component supply table and the second component supply table, and are supplied in the same manner as the conventional one component supply table. can do.

If the number or types of electronic components to be mounted on one printed circuit board is small and all the required electronic component supply units can be mounted on one component supply table, the two electronic component supply tables are the same. If a combination of electronic components is installed, when there are no more electronic components in the operating component supply table, the component supply table is moved to the retreat area, while the other component supply table is moved to the work area, While electronic components are being supplied by the component supply table in the work area, it is possible to perform necessary work such as component supply unit replacement and component replenishment for the component supply table in the retreat area. It is not necessary to stop the parts supply device for
The effect of improving the component supply efficiency can be obtained.

Similarly, when all the required electronic component supply units can be mounted on one component supply table, if different combinations of electronic components are mounted on both component supply tables, the component supply table in operation When the component supply by means of is completed, the component supply table is moved to the save area, while the other component supply table is moved to the work area, and the electronic component can be supplied by the component supply table. The setup change accompanying the change of the electronic component to be performed can be completed in a very short time.

If the electronic component supply device is provided with the component end detection means, the table replacement instruction means, the supply end detection means and the automatic setup change means, the component supply is performed in both the first mode and the second mode. Since the table replacement is automatically performed, it is not necessary for the worker to be near the component supply device at the time of table replacement, and a unique effect that management is easy is obtained.

The first mode, the second mode and
A mode selection means for selecting any one of the third modes,
Alternatively, the one-unit table mode and the two-unit table mode
And a mode selection means for selecting either
For example, parts supply in the 1st to 3rd modes, or 1 unit, 2 units
The parts can be easily supplied in the table mode, and if the mode storage means and the mode control means are further provided, the mode can be selected while the parts supply device is operating, and the operability is improved. A unique effect of improvement is obtained. Furthermore, if the preparation completion detecting means and the table replacement prohibiting means are provided, it is possible to prevent the component supply table that is not prepared from being moved to the work area and cause a component supply error. can get.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 2 is a view showing the outer appearance of a mounting apparatus equipped with a component supply apparatus according to an embodiment of the present invention. The mounting apparatus includes a main body frame 10, a board loading device 12, a board unloading device 14, a board supporting device 16, a component mounting device 18, a component supplying device 20, and the like.

The substrate supporting device 16 is similar to the printed circuit board positioning device disclosed in Japanese Patent Application No. 60-8808 filed by the applicant of the present application, and the details are for understanding the present invention. Since it is not necessary, only the main part will be described here with reference to FIGS. 3 and 4. The substrate support device 16 includes an X table (not shown) that is movable in the X axis direction parallel to the substrate transport direction, and a Y table 24 that is provided on the X table and is movable in a direction perpendicular to the X axis direction. , A table plate 26 mounted on the Y table 24 so as to be immovable relative to both the X and Y tables and movable in the vertical direction. Two guide bars 30 and 32, which are parallel to the substrate transport direction, are attached to the table plate 26 so as to support the printed circuit board. The guide bar 30 is fixed to the table plate 26, but the guide bar 32 is supported by a pair of sliders 34 attached to the table plate 26 so as to be movable in the Y-axis direction. The guide bar 32 is moved toward and away from the guide bar 30 by moving the upper part in the Y-axis direction, so that a plurality of types of printed circuit boards having different sizes can be supported.

A main positioning member 36 and a sub-positioning member 38 for engaging with the printed circuit board and accurately positioning are provided at the end of the Y table 24 in the X-axis direction on the side of the guide bar 30. It is installed. The main positioning member 36 is fixedly provided, while the sub positioning member 38 is attached to a guide rail 39 provided on the Y table 24 so as to be movable in the X-axis direction. The sub-positioning member 38 is always prevented from moving with respect to the guide rail 39 by a clamp mechanism (not shown), but the action of the clamp mechanism is released by the clamp releasing member, and the sub-positioning member 38 is positioned immovably. Table plate 2 in the state
By moving 6 in the X-axis direction, the relative position in the X-axis direction with respect to the table plate 26 can be changed, and a plurality of types of printed circuit boards can be positioned by this position adjustment.

A substrate carry-in device 12 and a substrate carry-out device 14 are disposed on both sides of the table plate 26 as described above, and the printed boards placed on the pair of conveyor belts 40 and 42 are guided by the guide plates 44 and 44, respectively. Carry in and out while guiding by 46. These carry-in devices 12
The conveyor belt 42 and the guide plate 46 on one side of the unloading device 14 are rotatably driven by the handle 54 on the plurality of feed screws 52 connected via the chain 48 and the sprocket 50, so that the conveyor belt 42 and the guide on the other side. The plate 44 is moved toward and away from the plate 44 so that a plurality of types of printed boards having different sizes can be conveyed.

An engaging member 56 is provided at the end of the guide plate 46 on the table plate 26 side.
This engaging member 56 is an engaging groove 5 formed in the slider 34 when the table plate 26 is in the raised position.
8, the slide 34 is moved in the Y-axis direction along with the movement of the conveyor belt 42 and the guide plate 46 by the operation of the handle 54, and the guide bar 32 is moved toward and away from the guide bar 30. It is like this.

Then, the printed circuit board carried by the board carry-in device 12 is transferred to the table plate 26 in the raised position. Next, the table plate 26 is moved to the lowered position, so that the table plate 26 is moved in the X-axis direction and the Y direction without interfering with the carry-in device 12 and the carry-out device 14.
It is moved in the axial direction so that the electronic component mounting portions of the printed circuit board are sequentially positioned below the suction tube of the component mounting device 18, which will be described later.
While being moved to the raised position, the printed circuit board is transferred to the board unloading device 14 and carried out.

The component mounting apparatus 18 is the same as the electronic component mounting apparatus described in the specification of Japanese Patent Application No. 60-8811 filed by the applicant of the present application, and here, FIG. Only the main part will be described with reference to FIG. The component mounting device 18 includes a rotary shaft 60 rotatably held around an axis line perpendicular to the main body frame 10. The rotary shaft 60 is adapted to be intermittently rotated by 30 degrees, and the intermittent rotary disk 62 fixed to the lower end of the rotary shaft 60 has twelve suction shafts via a rod 64, a shaft member 66, and an arm 68. The heads 70 are mounted at equal angular intervals so that electronic components are received from the component supply device 20 and electronic components are mounted on the printed circuit board in parallel. As shown in FIG. 6, the suction heads 70 include an outer cylinder 72 held by an arm 68 so as to be movable in the vertical direction, and an inner cylinder 7 fitted to the outer cylinder 72.
4 and is urged upward by a spring 76 arranged between the outer cylinder 72 and the arm 68 and always kept in the state shown in FIG. At the time of mounting, it can be moved downward by a pressing device (not shown). Transparent plates 80 and 82 made of glass or synthetic resin are fixed to both ends of the inner cylinder 74, and both transparent plates 80 and 82 are attached to the lower transparent plate 82.
A hollow adsorption tube 86 is press-fitted so as to communicate with the airtight space 84 formed therebetween. The space 84 is the inner cylinder 7
4, outer cylinder 72, arm 68, shaft member 66 and rod 6
4 is connected to a vacuum device (not shown) through a passage formed in 4, and the adsorption pipe 86 is selectively communicated with the vacuum device and the atmosphere by switching operation of the switching valve, and electronic parts It is designed to be sucked and attached.

As shown in FIG. 1, the component supply device 20 is
A first table 90 and a second table 92 are provided. Both of these tables 90, 92 are plate-shaped, and a plurality of front locating pins 94 and rear locating pins 96 are provided opposite to each other along the longitudinal direction on both sides in the width direction of the upper surface thereof, and the pins 94, A toggle clamp mechanism (not shown) is fixed in the groove 97 formed between the table 96 and the table 90, 92.
A plurality of component supply units 98 as shown in FIG.
The components are positioned by 4, 96, and are fixed by the toggle clamp mechanism in a posture in which the component supply parts are aligned, and thereby the first component supply table 95 and the second component supply table 99 are configured.

The type or number of electronic components to be mounted on the printed circuit board is usually not so large, and the tables 90 and 92 are required to mount such electronic components on the ordinary printed circuit board. A plurality of parts supply units 98 can be mounted, and both tables 90, 9
If the two are combined, the size is such that a component supply unit 98 holding the most various kinds of electronic components normally expected can be mounted.

The component supply unit 98 is the same as the device described in the specification of Japanese Patent Application No. 59-278167 filed by the applicant of the present application. Here, only the essential parts are shown in FIG. explain. Each of the component supply units 98 has one type of electronic component 100, which is the carrier tape 10.
2 taping-shaped electronic components 104 housed at equal intervals
(See FIG. 8), a feed device 108 that engages with the feed holes 106 formed in the carrier tape 102 and feeds the carrier tape 102 by one pitch (a distance equal to the housing interval of electronic components), and the carrier tape 102. And a winding device 112 for winding the cover film 110 attached to the upper surface.

The taping-shaped electronic component 104 is wound around a reel (not shown) arranged in the rear portion of the component supply unit 98, and the tip portion thereof is a guide groove 116 formed on the flat block 114 of the feeding device 108. The cover member 118 that covers the opening of the guide groove 116 and is lifted from the guide groove 116.
The cover film 110 is sent in a state in which the electronic components are prevented from jumping out, and the cover film 110 is pulled out from the slot 120 formed in the cover member 118 and appropriately wound by the take-up reel 122.

The feeding device 108 is accommodated in the block 114 so as to be capable of moving forward (in the direction indicated by an arrow A in the figure) and backward, and is engaged with the slider 124 so as to be rotatable about a horizontal axis. The feed member 126, the vertically movable positioning member 128, and the lever 130 attached to the feed member 126 and the positioning member 128 so as to be rotatable about a horizontal axis and at both ends thereof. It has and. In the carrier tape 102, when the return lever 134 is rotated in the direction shown by the arrow B in the drawing by a cam device (not shown) with the feed pin 132 formed on the feed member 126 engaged with the feed hole 106, Of the electronic component 100 in which the cover film 110 is fed by one pitch as the slider 124 is moved forward and the cover film 110 is wound, the frontmost one is located directly below the adsorption tube 86. To be done. Then, from this state, the adsorption pipe 86
Starts to suck air and is lowered and brought into contact with the cover member 118, and then the driven portion 136 of the feeding member 126 is pushed down in the direction indicated by the arrow C by a cam device (not shown) to feed the member 126. Is rotated, the feed pin 132 is disengaged from the feed hole 106, and the positioning member 128 is raised by the rotation of the lever 130, and the positioning pin 138 formed on the upper end of the feed member 132 is engaged with the feed hole 106. To be With the carrier tape 102 thus positioned, the slider 124 is retracted, and the cover member 11 is moved.
At the same time as 8 is retracted, the suction pipe 86 is further lowered to suck the electronic component 100, and the part of the component supply unit 98 facing the suction pipe 86 as described above forms a component supply portion. It will be.

First and second tables 90 and 92 supporting the component supply unit 98 constructed as described above.
Are movably supported by guide rails 150 arranged parallel to the printed circuit board transport direction. Table 9
0 and 92 are guided by a guide rail 150 so that the component supply parts of the plurality of component supply units 98 move along a straight line located above them, and nuts fixed to the lower surface thereof as shown in FIG. Each of 151 has a feed screw 15
2, 154 are screwed together. Feed screw 152,154
Are attached to the guide rails 150 so as to be immovable in the axial direction and rotatable, and are rotated by dedicated drive motors 156 and 158, respectively.
0 and 92 can be moved independently of each other.

A supply position 160 for supplying electronic components to the suction tube 86 is set at a position adjacent to the center of the guide rail 150 in the longitudinal direction as indicated by a circle in FIG. , The first and second component supply tables 95 and 99 are moved to move each component supply unit 9
The eight component supply units are sequentially positioned at the supply position 160. With this supply position 160 as a reference, the maximum range in which the component supply tables 95 and 99 move during component supply, that is, the component supply unit 9 mounted on the tables 90 and 92.
The ones located at both ends of the 8 are the supply positions 160, respectively.
The range of movement during positioning is a work area common to both component supply tables 95 and 99. During component supply, the component supply tables 95 and 99 are alternately moved in the work area to supply electronic components, While one component supply table is in the work area, the other component supply table is evacuated to a portion adjacent to the portion forming the work area of the guide rail 150 so as not to interfere with the component supply table in operation. . The component supply tables 95 and 99 are retracted to positions on the opposite sides of the work area, and these positions are dedicated retract areas for the first and second component supply tables 95 and 99, respectively. The rail 150 has a length sufficient for the two component supply tables 95 and 99 to move between the work area and the retreat area. The guide rail 150 constitutes the table guide device.

The electronic component mounting apparatus configured as described above is controlled by the control device shown in FIG. In the figure, 170 is a CPU (central processing unit), and this CPU
170 is an operation start switch, a mode selector switch,
An input device for inputting information such as the completion of replacement of the component supply unit 98 and the type of the printed circuit board on which the electronic component should be mounted.
An operation device 172 including various operation units is connected. The CPU 170 also includes a ROM (read only memory) 174 and a RAM (random access memory) 176.
And are connected. In the ROM 174, a program of three component mounting modes that can be executed by the mounting apparatus is started, and components are mounted according to the types of electronic components to be mounted on the printed circuit board, the mounting position, the mounting order, the moving order of the printed circuit board, and the mounting order of the electronic components. A program and the like for moving the component supply tables 95 and 99 so as to supply electronic components to the mounting device 18 are stored.

The CPU 170 further includes a first component supply table moving motor drive circuit 178, a second component supply table moving motor drive circuit 180, a substrate loading device drive circuit 182, a substrate unloading device drive circuit 184, and a substrate support device drive. The circuit 186 and the component mounting device drive circuit 188 are connected to the motor 156 and the motor 15 respectively.
8, the board loading device 12, the board unloading device 14, the board supporting device 16, and the component mounting device 18 are connected, and the tape end detection is performed via the interface 190 to detect that the electronic components of the component supply unit 98 are gone. A sensor 192 and a display device 194 (see FIG. 2) for indicating to the operator that the size of the printed circuit board to be mounted changes are connected.

A program for the three component mounting modes,
The drive motors 156, 158 and the feed screw 15 are the programs for moving the parts supply tables 95, 99 and the part of the control device for executing these programs.
2, 154 and the motor drive circuits 178 and 180 together form a table moving device.

3 which can be executed by this electronic component mounting apparatus
The one component mounting mode can be selected by the operator by switching the mode changeover switch (not shown). Normally, the mode changeover switch is kept in the automatic table change mode, and the first mode shown in the flowchart of FIG. The electronic components are mounted by. This mode
This is a case where the number or types of electronic components mounted on one printed circuit board is not so large, and all the required component supply units 98 can be mounted on either one of the tables 90 and 92. In addition, in FIG. 10, the operation described in the solid line frame is due to the mounting device,
What is described within the frame of the chain double-dashed line is due to the manual work of the operator, and this is the same for FIG. 11.

In this first mode, the type of printed circuit board on which electronic components are mounted is input prior to the start of operation, and the component supply unit 98 required for mounting the electronic components is input.
Are mounted on each of the tables 90 and 92 in a predetermined order. The mounting order may be the order of mounting the electronic components on the printed circuit board or may be different, but in any case, it is predetermined, and the tables 90 and 92 are determined according to the mounting order and the mounting order of the electronic components on the printed circuit board. The movement path within the work area of is set and stored in the ROM 174. Both the tables 90 and 92 have been evacuated to the evacuating area before the operation is started. After the component supply unit 98 is mounted to form the first component supply table 95 and the second component supply table 99, the mounting apparatus is activated. If you let
The first component supply table 95 is moved to the work area,
The component supply unit 98 is sequentially positioned at the supply position 160 to supply the electronic component to the component mounting device 18, and the component mounting device 18 receives the electronic component and mounts it at a predetermined position on the printed circuit board.

When the electronic component of any one of the plurality of component supply units 98 runs out, the tape end detecting sensor 1 as the component end detecting means.
Detected by 92. This detection can be performed, for example, by causing the sensor 192 to generate a signal when the suction tube 86 has not sucked the electronic component twice in a row, and the CPU 170 determines whether the electronic component is detected based on the detection signal. While moving the one component supply table 95 to the retreat area, the second component supply table 99 is moved to the work area,
The second component supply table 99 is made to supply electronic components. The worker is informed that the electronic parts are exhausted by means of a parts end notification means such as lighting of an indicator lamp provided on the main body frame 10, and the worker replaces the parts supply unit 98, which has no electronic parts, with a new one. After that, the end of the exchange is input to the CPU 170. Then, if any of the electronic components of the component supply unit 98 mounted on the second component supply table 99 runs out, the CPU 170
Moves the second component supply table 99 to the retreat area based on the signal from the sensor 192. At this time, when the replacement of the component supply unit 98 of the first component supply table 95 is not completed, the first component supply table 95 is moved after waiting for the input of the completion of the replacement. The replacement of 98 is normally completed before there are no electronic components in the second component supply table 99, and the CPU 170 replaces the first component supply table 95 with the second component supply table 99 and immediately shifts to the work area. It can be moved, and the mounting of electronic components will be performed continuously without stopping.

As is clear from the above description, the preparation completion detecting means is constituted by the input device for inputting the replacement of the parts unit or the setting end of the operating device 172. In addition, 3 stored in the ROM 174
In the part shown in FIG. 10 of the program of one component mounting mode, when the tape end is detected, one of the first and second component supply tables 95 and 99 is moved to the retracted position, and the other is operated. The table replacement command means is configured by being moved to the area, and the table replacement prohibiting means is configured by preventing the table replacement from being performed unless there is an exchange end input.

After mounting the electronic components on a predetermined number of printed circuit boards, when mounting the electronic components on different types of printed circuit boards, the table is arranged according to the order shown in the flowchart of FIG. The exchange will be done automatically. The mode involving this automatic setup change is the second mode. At this time, for example, the first component supply table 95 is in the work area and is in operation, and the supply of the electronic components by the first component supply table 95 completes the mounting of the electronic components on the set number of printed circuit boards. In such a case, the operator switches the mode changeover switch to the automatic setup change mode and inputs the data indicating the type of the printed circuit board to be mounted next from the operation device 172. This data is stored in the RAM 176, and as shown in FIG. 11, the automatic setup change performed after the completion of mounting the set number of sheets is performed based on this data. RAM1 is the program and data required for the actual mounting.
These programs and data are stored in the RAM 176 depending on the state of the mode changeover switch and the operation of the operating device after the setting number of sheets has been mounted.
The program and data necessary for mounting on the next printed circuit board read from the ROM 174 can be changed based on the data stored in. The operator operates the mode changeover switch and the operation device 172, and at the same time, the second component supply table 9 retracted in the retracted area.
The component supply unit 98 of 9 is replaced with a component equipped with an electronic component for a printed circuit board to be mounted next, and when the replacement is completed, the end of setting is input. When the type of the printed circuit board to be mounted next changes, the type or number of electronic components to be mounted and / or the size of the printed circuit board also changes. In either case, it is possible to switch to the automatic setup change mode. For example, even if a predetermined number of printed circuit boards are mounted and the automatic setup change is completed, the second component supply table 99 in the retreat area is prevented from moving until the set end is input. ing.

When the printed boards to be mounted next have the same size and only the type or number of electronic components to be mounted are different, it is only necessary to switch the tables, and the set number of mounted components are mounted. When the completion of setting the component supply unit 98 to the second component supply table 99 has already been input at the time of completion, the table is replaced immediately after the automatic setup change for changing the electronic component mounting program is performed. Then, the electronic components are mounted on the next printed circuit board.

If the printed circuit boards to be mounted next have different sizes, the display device 194 notifies the operator based on the input of the type of the printed circuit boards, and the setting is made. After the mounting of the number of sheets is completed, in addition to changing the program, automatic setup change including automatic position adjustment of the sub-positioning member 38 in the substrate supporting device 16 is performed. After receiving the notification from the display device 194, the operator operates the handle 54 after the automatic setup change and operates the widths between the conveyor belts 40 and 42 of the substrate loading device 12 and the substrate unloading device 14 and between the guide plates 44 and 46. The width between the guide bars 32 and 30 is adjusted, and after completion, the adjustment completion is input. If the setting of the component supply unit 98 in the second component supply table 99 has already been completed before the completion of the adjustment, the tables are replaced after the above setup change is completed, and the electronic components are mounted. Be seen. If the setting of the component supply unit 98 is not completed, the table is replaced after the input of the completion of the setting is performed, and the electronic components are mounted.

As is clear from the above description, the RO
In the portion shown in FIG. 11 of the program of the three component mounting modes stored in M174, detecting the completion of mounting of the set number constitutes the supply end detecting means, and the completion of mounting of the set number is completed. Along with this, automatic setup change and table change are performed, so that automatic change change means is configured, and the table change is prohibited unless the end of setting is input, so that table change is prohibited. Means are configured.

The other mode that can be executed by this mounting apparatus, that is, the third mode, has many types or numbers of electronic components to be mounted on the printed circuit board.
It is a mounting mode in which it is not possible to mount all of the necessary component supply units 98 on only one of the 0 and the second table 92, and to mount them on both tables 90 and 92 separately. In this case, the first and second component supply tables 95 and 99 are regarded as one component supply table, and are alternately moved to the work area so as to supply the electronic components in the order of mounting on the printed circuit board. Yes,
Tables 90 and 92 by dividing the parts supply unit in the mounting order
If the electronic components are mounted on one printed circuit board, the component supply tables 95 and 99 need only be replaced once. This third mode is performed by switching the mode changeover switch to the automatic stop mode, and if mounting of the set number on the printed circuit board is completed or if the electronic component 100 disappears in any of the component supply units 98, actual mounting is performed. The device is stopped automatically.

As is clear from the above description, the mode changeover switch constitutes the mode selecting means and at the same time the mode storing means, and the CPU 170 and the ROM 17 are provided.
4 and the portion of the RAM 176 that performs control according to the state of the mode changeover switch, that is, the component supply table is replaced when the electronic components of any of the component supply units run out during component supply in the first mode, In the 3rd mode, automatic setup change and table replacement are performed when the set number of printed circuit boards have been mounted during component supply. The part that stops the mounting device when the mounting of the device on the printed circuit board is completed constitutes the mode control means.

In the mounting apparatus of the present embodiment, each table 90, 92 has a size sufficient for mounting the component supply unit 98 when there are not many kinds or a large number of electronic components to be mounted on the printed circuit board. The size can be smaller than that in the case where a table is formed on the assumption that there are many types or numbers of electronic components. Therefore, the operation response of the first and second component supply tables 95, 99 is good,
Since it can be moved at high speed, the work efficiency can be improved, and the vibration generated at the time of starting and stopping the movement is small, and the electronic parts are less likely to tilt or change their postures. It is possible to obtain the effect of reducing the suction error of the electronic component by the device 18.

Further, in the first and second mounting modes, while one component supply table is in the work area and supplies components, the component supply unit 98 of the other component supply table in the retreat area is supplied. Since the replacement can be performed in parallel, the setup replacement can be completed in a short time when the electronic parts are used up, and the operation rate of the mounting apparatus can be improved.

In the above embodiment, the feed screw 1
52 and 154 are dedicated drive motors 156 and 15 respectively.
Although it is designed to be rotated by means of 8, the transmission of the rotation of the drive motor is switched by a clutch so that both drive screws 152, 154 are driven by one drive motor.
It is also possible to rotate.

Further, the table guide device and the table moving device respectively include a guide rail 150, a feed screw 152,
It is not limited to the one constituted by 154 and the drive motors 156, 158, various forms can be adopted, and the component supply unit is not limited to the one in the above embodiment. Although not exemplarily illustrated, the present invention can be carried out in various modified and improved modes based on the knowledge of those skilled in the art.

[Brief description of drawings]

FIG. 1 is a plan view showing a mounting apparatus provided with a component supply apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view showing an appearance of the entire mounting apparatus.

FIG. 3 is a perspective view showing a substrate supporting device of the mounting apparatus.

FIG. 4 is a plan view showing a substrate supporting device, a substrate loading device, and a substrate unloading device in the mounting apparatus.

FIG. 5 is a front sectional view showing a main part of a component mounting apparatus of the mounting apparatus.

FIG. 6 is a front cross-sectional view showing a suction head of the component mounting device taken out.

FIG. 7 is a front view showing a main part of a component supply unit of the component supply device.

FIG. 8 is a plan view showing a part of a taping-shaped electronic component set in the component supply unit.

FIG. 9 is a block diagram showing a control circuit of the mounting apparatus.

FIG. 10 is a flowchart showing an electronic component mounting mode that can be executed by the mounting apparatus.

FIG. 11 is a flowchart showing an electronic component mounting mode that can be executed by the mounting apparatus.

[Explanation of symbols]

 20 parts supply device 26 table plate 90 first table 92 second table 95 first parts supply table 98 parts supply unit 99 second parts supply table 100 electronic parts 150 guide rails 152, 154 feed screws 156, 158 drive motor 160 supply position 170 CPU (Central Processing Unit) 172 Operating Device 174 ROM (Read Only Memory) 176 RAM (Random Access Memory) 192 Tape End Detection Sensor

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Jiro Kodama No. 19 Chausan, Yamamachi, Chiryu-shi, Aichi Fuji Machinery Manufacturing Co., Ltd. (56) Reference JP-A-61-239696 (JP, A) JP-A-SHO 62-21300 (JP, A)

Claims (6)

[Claims] 1. A plurality of component supply units, each of which holds a large number of electronic components of one type, are respectively mounted on a table with a plurality of component supply units of the component supply units aligned along a straight line. A table and a second component supply table, and the plurality of component supply units on the first component supply table and the second component supply table in a direction parallel to the straight line. A common work area for supplying electronic parts from each of the above, and a table guide device for guiding to a first part supply table evacuation area and a second part supply table evacuation area respectively provided on both sides of the work area, Program storage means for storing a one-table control program and a two-table control program for supply According to the one-unit table control program, one of the first component supply table and the second component supply table is kept in the retreat area while the other is moved to the work area, and the other component is supplied. One-unit table mode for performing unit selection for selectively positioning each component supply unit of the plurality of component supply units on a table at a predetermined supply position, and the first component supply according to the two-unit table control program Both the table and the second component supply table are moved to the work area, and the component supply units of the plurality of component supply units on the both component supply tables are selectively positioned at predetermined supply positions. A table moving device capable of operating in a mode selected from a two-table mode for selecting a unit and a two-mode. Electronic component supply device according to claim Mukoto. 2. Further, it is detected that at least one of the plurality of component supply units on the component supply table in the work area is out of electronic components or is out of electrical components during operation in the one-unit table mode. Instructing the table moving device to replace the component supply table in the work area and the component supply table in the save area in response to the component end detection means and the component end detection by the component end detection means. Table replacement instructing means, a supply end detecting means for detecting the end of supply of a predetermined amount of parts by the part supply table in the work area during operation in the one-unit table mode, and a supply end detection means by the supply end detecting means. Upon detection,
At least, the control program of the program storage means is changed from the one-unit table control program for component supply by the component supply table in the work area to the one-unit table control program for component supply by the component supply table in the save area. An automatic setup change means for performing an automatic setup change including a program change and a table change for changing the part supply table in the work area and the part supply table in the save area in the table moving device. The electronic component supply device according to claim 1. 3. The table moving device further comprises:
A first mode in which the table moving device is operated in accordance with the table control program and the component end detection means and the table replacement command means are operated, and the table moving device is operated in accordance with the one table control program, and the supply end detection means and the automatic It is characterized by including a mode selecting means for selecting one of three modes, a second mode for operating the setup changing means and a third mode for operating the table moving device according to the two-table control program. The electronic component supply device according to claim 2. 4. The first mode, the second mode, and
And a mode storing means for storing the mode selected by the mode selecting means during the component supply by any one of the third mode, and a mode stored in the mode storing means after the end of the previous component supply. 4. The electronic component supply device according to claim 3, further comprising a mode control means for instructing the subsequent component supply. 5. Further, a preparation completion detecting means for detecting whether or not the parts supply table in the evacuation area is in a preparation completion state for parts supply, and when the preparation completion detecting means does not detect preparation completion, A table replacement prohibiting unit that prohibits replacement of the component supply table by the table moving device despite the component end detection by the component end detection unit or the supply end detection by the supply end detection unit. The electronic component supply device according to claim 2, 3, or 4. 6. The one-table mode and the two-table mode.
Select one of the two table table modes
Mode selection means, The one-table mode and the two-table mode
The parts can be selected by the mode selection means during parts supply due to misalignment.
A mode storing means for storing the selected mode, Previous part
After the supply is completed, the mode stored in the mode storage means is
Mode control means for instructing subsequent parts supply including
The electronic component supply device according to claim 1, wherein: