JPS59156644A - Loading device for printed circuit board boring machine - Google Patents

Abstract

PURPOSE:To suppress the cost by furnishing a loading device, which is capable of lifting each of works from their set position and returning onto a pallet situated in the loading position, and thereby enhancing the operational efficiency of the processing machine. CONSTITUTION:In a processing machine to bore a number of holes in a printed circuit board, the mechanical operation can be carried out continuously until all of the works III placed on 15 pallets IV in a pile are processed completely, and this continuous operation is completed when a frame VI accommodating the pallets IV with processed works III has attained the upper limit position in a storage V. Accordingly the processed works III can be taken out at one time. The emptied frame VI is returned to the sunk position to accommodate again pallets IV with unprocessed works III. Thus the operation can be made mechanically and continuously until the processing is completed. According to this arrangement, the operational efficiency will be enhanced and the cost suppressed.

Description

[Detailed Description of the Invention] The present invention is a processing machine that makes a large number of holes (through holes) in a printed circuit board, and the workpiece is stored in a predetermined position in advance, and then the workpiece is taken out and set in the machining position. This invention relates to a loading device for a printed circuit board drilling machine that takes out a workpiece and stores it in a predetermined position.

In FIGS. 1 to 8, numeral I is an NO-controlled drilling machine, 1 is its work table, and 2 is a plurality of sets (4 sets in this embodiment) of spindles.・■ is a tool magazine device for an automatic tool changer.

Figure 4 shows the beam ■, in this case eight pieces of 211
The locating pins 6 are set at predetermined positions on the front and rear of the 1.1 set, in which the backing plate 4 is applied to the upper surface and the lining plate 5 is applied to the lower surface. The lower end of the holder is slightly protruded downward.

In order to perform the drilling process on the workpiece (■) in which a plurality of printed circuit boards 8 are integrated in this way, 1. Conventionally, the iI5
As shown in the figure, the worker holds the workpiece (2) in his hand and sets it on the work table 1, and after processing, the worker removes the workpiece (2) from the worktable 1 by hand again and sets it at the specified position on the work table 1. carried it to the position. Note that 1a in the figure is one of the work seals! 1 is a bush provided in the work table for fitting the locating pin 6; 1b is a groove provided in the work table 1 for inserting the other locating pin 6; This is a plate for.

As mentioned above, in the past, workers had to manually set the workpiece ■ on the worktable 1 and remove the processed workpiece from the worktable 1, which reduced work efficiency and caused problems. However, there was a drawback that costs increased due to increased labor costs.

The present invention has been made in order to solve these drawbacks, so it is equipped with a large number of pallets on which several sets of workpieces can be placed, and a storage compartment in which these pallets are stacked so that they can be taken out and can be raised and lowered is constructed. 1. When drilling, the pallet is pulled out from the storage to the loading position by a pull-out device connected to the hole-drilling machine, and each workpiece on the pallet is lifted by the loading device installed on the pull-out device. The workpiece is transferred to the work table of the ten-edge drilling machine and placed in the workpiece setting position. After processing, the workpiece is lifted by the ten-edge loading device and returned to the loading position mold, and the workpiece is placed on the pallet. By arranging the structure in which the pallet is moved up and down one step after the pallet is placed in the storage by returning the pull-out device and then moving the pallet up and down one step, the work efficiency of the processing machine is significantly improved and costs are reduced, as well as automation. The purpose is to enable labor saving.

An embodiment of the present invention will be described below with reference to the drawings. 1.)
Figure 6 shows a pallet (■) for placing multiple sets of C (41A11) in this example. is a horizontal frame, 10.1
Reference numeral 1 designates a work supporting member extending between the front frame 7 and the rear frame 8, 12 designates a locate pin holding hole provided in a wide member 111, and 18 designates a locate pin guide groove. 14 is two hooks protruding from the front of the front frame 7, 15 is two handles protruding from the rear frame 8, 16 is a license plate provided on the rear frame 8, and 17 is a horizontal frame 9. One part protrudes from the outside of □
18 is this guide block; 17
This is a stopper that protrudes from the upper surface of the front end.

In the present invention, the above-mentioned pallets are prepared.

Next, as shown in FIGS. 2 and 8, the holes are drilled.

A storage V is installed at an appropriate distance from the processing machine I to store a large number of stacked pallets (1) that can be pulled out from each other and can be moved up and down.

Figures 7 to 18 show details of storage V.
20 is the 4 pillars that make up the storage, ILI pillar 19
A beam member 21 that connects the upper ends of the two pillars 19 is a connecting member horizontally installed in the middle of the two pillars 19 on both sides.

In addition, ■ is a pallet storage frame that stacks and stores a large number of barets (IVs) in a drawable manner, and 22I is an upper frame,
28 is a lower frame; 24 is a vertical member that connects the upper frame 22 and the lower frame 23 to form a box-shaped pallet storage frame;
Reference numeral 25 denotes side wall plates fixed to the insides of the vertical members 24 on both sides. Reference numeral 26 denotes a plurality of pallet guide rollers (in this embodiment, 15 in the vertical direction and 5 in one horizontal direction) arranged in parallel in the vertical and horizontal directions with respect to the side wall plate 25. By placing the guide block 19 of the pallet (2) on each roller 26, each of the 15 pallets (2) can be stacked up in the frame (2).

Can be stored.

Therefore, as shown in Fig. 18, each of the stored barrels)
■ can be pulled out in the direction of arrows M and H by the handle 15, and the workpiece ■ can be placed in that position, or the processed workpiece ■ can also be taken out in 1-1, but 27 is a barre) IV. This is a horizontal holding plate protruding from the side wall plate 25 in order to hold the pallet almost horizontally when it is pulled out.
8 is a stopper to prevent the removal of the pallet ■.
It engages with the stopper 18 of 1' to prevent removal.

Further, the pallet storage frame (2), which is formed into a box shape 5 as described above, is attached to the storage V so that it can be moved up and down.

Reference numeral 29 in FIGS. 8 and 11 is this lifting guide □゛F roller, and 30 is a roller holder protruding from the side wall of the first frame □ to hold this roller 29.
9 guides the raising and lowering of the frame (2) along the support column (19).

In order to drive this frame (2) up and down, a boss portion 81 is provided in the center of both side frames of the upper frame 22 of the frame (1) to project outward, and a nut 32 (32) is provided within this boss portion 31. A lifting screw shaft 83 screwed into this nut 82 is provided vertically between the columns 19 on both sides of the storage V. No. 84 is the upper bearing of this screw shaft 38, Ill.

85 is a lower bearing (see Figure 7.8).

Further, 86 is a plate provided on the upper surface of the beam member 20 at the top of the storage V, 87 is a motor for lifting/lowering installed on this plate 86, 38 is a 1r/speed machine, and 89 is this [2 machine 88] A drive shaft is connected to the output shaft through a coupling 1 and 40, and 41 is a bearing of this drive shaft 89. Further, 42 and 48 are bevel gears for transmitting the rotation of the drive shaft 39 to the screw shaft 88.

Therefore, it is necessary to rotate the motor 87 in forward and reverse directions.
7) From this, it is possible to raise and lower the pallet storage frame (1).

Further, 44 (see Figures 9 and 10) is a pallet guide door that is provided inside the two outer supports 19 of the storage V, each of which can be opened and closed via a hinge 45, and 46 is a pallet guide door that protrudes from the door 44. This is the handle that was installed. Further, 47 is a stopper when the door 44 is closed, 48 is a magnet that attracts the door 44 when the door 44 is closed, and 50 (see Figures 7 and 11) is the two pillars 19 inside the storage V. More than that, storage space.
This plate 50 is a stopper plate protruding inward to prevent the pallet from popping out, and this plate 50 is cut out only at the pallet pull-out position 51 in the middle (see FIG. 7).

In addition, as shown in Figures 2, 8, 7, 11, and 1.4, a frame 52 is provided between the drilling pI and the storage space ■, and a pallet pull-out device ■ is installed on this frame 52. do.

(81 This drawer device ■ pulls out the pallet ■1 in the storage V to a predetermined loading position on the pedestal 52.
First, a large number of guide rollers 58 are arranged in parallel on the pedestal 52 to support the lower surfaces of both sides of the pallet (2).

(See FIG. 7.14) 54 is a channel-shaped row holding member, and 55 is a pedestal that supports the member 54 on the pedestal 52. Reference numeral 56 denotes a guide roller bracket protruding upward from both sides of the frame 52, 57 a channel-shaped roller holding member protruding inward from this bracket 56, and 58 a guide roller bracket arranged in parallel inside this member 57. With Lula,
It guides both sides of the pallet ■.

In addition, 59 (see Figure 11.14) is a stopper support erected on the side of the drilling machine 52, 60 is a bracket fixed to this support 59), and 61' is this bracket 6.
A stopper adjustment screw 62 is screwed into the stopper adjustment screw 0, a lock nut thereof is 62, and a stopper butt 68 is provided on the front frame 7 of the pallet 1.

Further, 64 is a stroke cylinder installed in the center of the frame 52, 65 is a slide block of the stroke cylinder 64, and 66 is a slide block 65 of the stroke cylinder.
The hook mounting plate 68 fixed via the spacer 67 is designed to engage with the hook 14 of the plate 66 (7) (fill, pallet) IV.
# It's a digit hook.

When the pallet storage frame ■ is raised one step while the hook 68 is moved to the right side in FIG.
8. When the stroke cylinder 64 is operated to move the slide block 65 to the left in this engagement state, the pallet (2) can be pulled out to the loading position shown in FIG. 7.11.

Further, this pulled out pallet (2) can be returned into the pallet storage frame (2) by operating the stroke 1' lock cylinder 64 described above.

Also No. 2.3, 7, 12.14, 15, 16゜17.1
As shown in 81fi, a loading device (2) is provided on the withdrawal device (2). 69 (see Figure 14) is the frame 5
70 is a girder frame extending between the upper ends of the left and right columns 69, and 71 is a connecting beam of the girder frame 70M. be.

Further, 72 is a spacer 78 below the girder frame 70.
These two girders 72 are connected to the stroke cylinder 6 of the drawer device (1).
4 and arranged at appropriate intervals. Directly below this girder 72, a stroke cylinder ?4 (see Fig. 14.15) for moving the manipulator is provided parallel to the girder 72.
A guide bar 76 is provided in parallel to the stroke cylinder 74 on both sides of the stroke cylinder 74 via brackets 75, respectively. Reference numeral 77 denotes a slide block of the stroke cylinder 74. A carrier plate 78 is fixed to the lower surface of this slide block 77, and guide blocks that slidably fit into the guide bar 76 are provided on both left and right sides of this carrier plate 78. y.

79 is provided to protrude upward. Further, a manipulator plate 80 is fixed to the lower surface of the left and right sides of the carrier plate L-door 8, and a manipulator plate 80 is fixed to the intermediate part of the manipulator plate 80, as shown in FIG. Air cylinder 81'? i: A connector 8 is provided at the lower end of the piston rod 81a of the air cylinder 81.
The manipulator upper plate 83 is connected via 2. Further, 84 is a hollow cylinder 1 provided vertically through the manipulator plate 80 before and after the air cylinder 81.
The guide bar 85 is a guide bar that slides through the guide 84, and its lower end is fixed to the upper plate 88 for the manipulator.

In addition, the upper plate 88 for the manipulator has the h 16th
．． 17.18 As shown in detail in Figure 18, fidget brackets 86 and 87 are provided at the front and rear ends of the plate 88 to project downward, and two mutually parallel guides are provided between these brackets 86 and 87. Set across the bar 88, stiffness 2
The guide bar 2 of the book 88 and the 2 holders 8 can be slid freely.
9 and 90, and fix the movable claw guide plate 91 to the lower ends of these holders 89 and 90. The bracket 87 and holder 9 between the two guide bars 88
0, a clamping air cylinder 92 is provided parallel to the guide bar 88. The piston rod 98 of the air cylinder 92 is connected to the piston rod 92a and the holder 9.
0 is a connector 94, which is a lock nut.

Further, at the front and rear ends of the movable claw guide plate 91, waji holders 95 and 96 are respectively provided to protrude downward, and a claw feeding screw 9 is rotatably provided between the stiff holders 95 and 96. At the same time, an extension shaft 97a passing through the holder 96 integrally with this screw 97 is made rotatable by a pulse motor 98. and claw feed screw 9
7 is provided with a movable claw 99 screwed together, and claw guide blocks 100 (see FIG. 18 g) are fixedly provided on both sides of the plate 91 on both sides of the movable claw 99.
The lower end of the bracket 87 facing 9 is formed as a pawl fixing claw 8a. Reference numerals 101 denote claws 187a, 9
It is a bat provided inside the 9.

Since the loading device (2) is configured as described above, by rotating the pawl feeding screw 97 via the pulse motor 98, the movable pawl 99 is moved along the screw 97.
The distance from the fixed claw 87a can be adjusted. Therefore, the size of the workpiece (2) can be adjusted by moving the moving claw 99.

Also, if the clamp air cylinder 92 is extended,
Since the plate 91 moves in the direction of arrow O in FIG. 16 with respect to the plate 88 via the holder 90, the fixing claw 8
If the distance between the fixed claw 87a and the movable claw 99 increases and the clamping air cylinder 92 contracts, the plate 91 will move in the direction of arrow P with respect to the plate 88. The spacing becomes smaller. Therefore, by operating this clamping air cylinder 92, the claw 8
? A, 99 can clamp and release the workpiece (■).

Further, the manipulator upper plate 88 can be raised and lowered by operating an air cylinder 81 provided perpendicularly to the manipulator plate 80, and the manipulator plate 80 can be moved up and down via the carrier plate 78 and the slide block 77.

By operating the draw cylinder 74, it is possible to move back and forth along the guide bar 76 via the guide block 79.

Next, the operation of the loading device of the printed circuit board drilling machine of the present invention constructed as described above will be explained.

First, as shown in FIG. 4, a plurality of printed circuit boards 8 are superposed and integrated into one piece (2) and placed on a pallet (N) shown in FIG. By inserting 1- into the hole 12 and groove 18 of
A plurality of (four in this embodiment) works (2) are set at predetermined positions on a pallet N (see FIG. 11).

In this example, 15 pallets ■ as described above are prepared,
Store this as shown in Figure 7.8.9! 1□(15) Insert into the pallet storage frame ■1 in the lowered position in the warehouse V via each guide roller 26. When inserting this pallet ■, leave the pallet guide door 44 open.
When the insertion of the pallet ■ is completed, the door 44 of the slot is closed.

Next, operate the stroke cylinder 64 of the drawer device (■) to move the hook 68 shown in FIG. Raise the frame ■ to the pallet storage stage by 1!910 minutes.

In this way, the topmost palette in the frame
14 rises and engages with the hook 68 of the front F drawer device (2). Therefore, if the stroke cylinder 64 is operated in this state and the slide block 65 is moved toward the processing machine I side, the plate 66 and the hook 68.
4, pallet (2) is moved in the direction of arrow Q in FIG. 11 and pulled out to the loading position shown in FIG. This pallet (■) is moved by guide rollers 26.58. ”
(16) Guided by 58, stopper 61 and pad 168
Stops at the collision position.

Next, from the manipulator of the loading device (1) in the state shown in FIGS. 7 and 12, first extend the clamping air cylinder 92 shown in FIGS. 16 to 18 to release the claw 99.
87a to the open position, the manipulator is lowered by operating the air cylinder 81 for raising and lowering the manipulator so that the claws 99.87a can grip the workpiece (2), and by retracting the air cylinder 92, as shown in FIG. Hold the wire (1) with the claws 99.87a.

Once the workpiece ■ has been clamped, operate the air cylinder 81 to raise the manipulator to the position shown in Fig. 7, and then operate the stroke cylinder 74 shown in Figs. 14 and 15 to move the slide block 1:'77 and The manipulator attached to the manipulator plate 80 via the carrier plate 78 is moved in the direction of arrow R in FIG. Stop the manipulator, and operate the lifting gear 2 gear cylinder 81 to lower the manipulator 1.
let Then, the locating pin 6 of each workpiece I is inserted into the hole and groove lb of the bush la of the worktable l (see FIG. 5) to position each workpiece I. After setting each workpiece (4 pieces in this embodiment) on the work table 1 in this way, the clamping air cylinder 92 is extended and the moving claw 99 is moved to move the workpiece from between the claws 99.87a. At the same time as the seal is released, the manipulator is raised by the lifting air cylinder 81 and placed on standby 11-.

The work table L on which the workpiece ■ is set is moved to the processing position of the drilling machine I, and a predetermined drilling process is performed.

This drilling process is performed by No control, but when there are many types of workpieces and different types of machining 11 are performed consecutively, the type of machining can be determined by reading the code on the license plate 16 shown in Fig. 6. However, different types of machining can be performed continuously by calling the appropriate program and machining.
l...Once the drilling process is completed, work table 1 is set to 1.
The process returns to the aforementioned loading position ff1 (see FIGS. 7 and 12). At this time, as mentioned above, the manipulator waiting above is lowered by the air cylinder 81, and then the clamping air cylinder 92 is operated to release the claws 99.87.
The workpiece H is held by a. Once the workpiece ■ has been clamped, the manipulator is raised and the stroke cylinder 74 is activated to move the manipulator in the direction of arrow S in FIG.
Place the processed workpiece ■ on top of the workpiece ■. Next, the manipulator is lowered by the air cylinder 81, and each processed workpiece (2) is placed in a predetermined position on the pallet (2) (J-).Then, each workpiece (2) is released by the operation of the air cylinder 92, and then the air cylinder (1') is released.

The manipulator is raised by the cylinder 81.

Once the processed workpiece ■ is set on the pallet ■, the stroke cylinder 64 of the unloading device ■ is activated to push the pallet ■ into the top stage of the pallet storage frame ■ in the storage V. Thus, one cycle is completed.

That is, in the second processing operation, the pallet storage frame (1) is first raised by the operation of the motor 37. When the frame ■ rises one step, hook 1 of the tenth pallet ■
4 is a pull-out device (7') 7. As the pallet 4 is lined up from the hook 68, the hook 14 of the second pallet from the top engages with the hook 68.

Therefore, unless the pull-out device (■) is operated as described above, the unprocessed work (■￥ placed on the pallet) (IV) (since it is pulled out to the loading position, the above-mentioned operation is repeated 7) is fine. .

In other words, in the apparatus of this embodiment, until all workpieces placed on 15 stages of pallets have been processed,
Work can be carried out mechanically in a continuous manner, and at the end the pallet (with which the processed work is placed) is stored.
reaches the upper limit position of the storage V, and the continuous work ends. Therefore, the processed workpiece (■) can be taken out at once. In addition, the empty frame ■ is returned to the lowered position, the pallet ■ on which the unprocessed workpiece ■ is placed is stored 2" □, and machining work is resumed. Work can be performed continuously mechanically until all workpieces have been processed.

The above-described series of operations of the apparatus of the present invention can be easily performed automatically by using a computer or the like, and can be operated unmanned for a long period of time.

Therefore, according to the loading device for a printed circuit board drilling machine of the present invention, it is possible to significantly improve the working efficiency of the processing machine and reduce costs, and also to facilitate automation and save labor. You can get a sleepy effect immediately.

[Brief explanation of the drawing]

Fig. 1 is a front view of a printed circuit board drilling machine equipped with the device of the present invention, Fig. 2 is a side view showing a part of the machine in cross section, Fig. 8 is a plan view thereof, and Fig. 4 ra+ is a plurality of sheets. Figure 5 (b) is a plan view of a workpiece made by overlapping and integrating printed circuit boards, Figure 5 (fa) is a work tape for a hole punching machine, Le 2.1
A front view showing the state in which four sets of workpieces are placed on top, Figure 1 (b) is a plan view thereof, Figure 6 is a perspective view of the pallet used in the apparatus of the present invention, and Figure 7 is a view of the apparatus of the present invention. A side view, FIG. 8 is a sectional view taken along the line A-A in FIG. 7, FIG. 9 is a BB-B sectional view in FIG. 7, and FIG. Figure 11 is a cross-sectional plan view taken along line D-D in Figure 7;
The figures are a plan view taken along the line E-E in FIG. 7, FIG. 18 is a partial elevational view showing the inside of the pallet storage frame in the storage shed, and FIG. 14 is a view taken along the line F-F in FIG. Fig. 15 is a cross-sectional view taken along line GG in Fig. 14, and Fig. 16 is a vertical cross-section of the manipulator 1z, 1 17 [1
16 is a plan view taken along line H-H in FIG. 16, and FIG. 18 is a sectional view taken along line II in FIG. 16. ■...No control type drilling machine 1...Work table 2...Spindle■...
・Tool magazine device of automatic tool changer ■... Work 3... Printed circuit board 6... Locate pin ■... Pallet 12... Locate pin fitting hole 13... Locate pin guide reservoir ■4...・Hook V...Storage Jiff8
7... Motor ■... Pallet storage frame ■... Drawer device 52... Frame 64.
... Stroke cylinder 68 ... Hook ■ ... Loading installation 1 169 ... Support column 70 ... Girder frame 74 ... Manipulator - rK +31 + Jil stroke cylinder 76 ... Guide bar 80 ...
- Manipulator plate 8]... Air cylinder for lifting the manipulator 88... Upper plate for the manipulator 87a... Ii'd fixed claw 88... Guide bar 9
1... Guide plate for #Th claw 92... Air cylinder for clamp 97... Screw for feeding claw 98... Pulse motor 99... One claw for transfer. Japanese Patent Publication No. 59-156644 (13)

Claims (1)

[Scope of Claims] 1. A storage that can be raised and lowered to store a large number of pallets on which workpieces can be placed, stacked so that they can be pulled out, and that the pallets in the storage are pulled out to a loading position and the pulled out pallets are stored. The drawer device returns to the warehouse and lifts the pallet from the loading position 1-1
This loading device for a printed Z board stone drilling machine is provided with a loading device for setting the workpiece at a work setting position of the drilling machine, lifting the workpiece from the setting position and stacking it on a pallet at the loading position. −