JPH0153133B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a jig for positioning a press mold in a press machine for punching out plate-shaped printed matter such as a watch dial, name plate, printed circuit board, etc. using a press.

FIG. 1 shows a watch dial as an example of a plate-shaped printed matter. This dial plate 1 is printed in numbers on a rectangular sheet-like material 2 as shown in FIG. 2a, for example. (4 in this example) are printed side by side,
A large number of press workpieces include reference holes 3 drilled at fixed positions on the top and bottom of each dial plate 1.
2, the dial plate 1 was punched out in order using a press using the reference hole 3 as a guide, as shown in FIGS. 2b to 2e.

In the conventional press device that performs such punching, a locate pin that fits into the reference hole 3 is provided on the lower die of the press, and an operator manually inserts the reference hole 3 of the workpiece 2 into the lower die. After fitting to the locating pin, pressing was performed one piece at a time using two-handed push buttons, resulting in low work efficiency. Furthermore, since the final piece 1 of the workpiece 2 shown in FIG. 2d is set and pressed directly under the press die, there is also the problem that it is extremely dangerous.

In order to solve these problems, it is necessary to mechanize and automate the feeding of the workpiece to the press device. The apparatus shown in FIGS. 3 to 6 is
Pressing is performed by combining a press device and a workpiece feeding device, but in this case, the feeding direction of the workpiece by the feeding device that feeds the workpiece into the press device, and the position and orientation of the mold set in the press device must be correct. If they are not aligned, accurate press working will not be possible.

As a means of solving this need, the present invention provides a press die positioning jig, which facilitates the positioning of the press die and improves the processing accuracy of the press.

The drawings will be explained below.

In the figure, 4 is the base, 5 is the press device (press machine), 5a is the slide (elevating member), 5b is the bolster plate, 6 is the lower die of the press die, and 7
is the upper type.

Also, 8 is two rails installed on the base 4,
A frame 10 of an automatic feeding device for a workpiece 2 is movably mounted on the rail 8 via wheels 9. Reference numeral 11 (see FIG. 4) is a connecting plate that connects the press machine 5 and the pedestal 10 at a position close to each other. Reference numeral 12 denotes a workpiece support stand protruding from one side of the pedestal 10 so as to be movable up and down, and a large number of workpieces 2 are stacked on this support stand 12. 13 is the workpiece positioning plate.

Further, 14 is a lifter bracket protruding from the lower part of the pedestal 10, 15 is a guide bar bearing provided on this bracket 14, 16 is a guide bar bearing provided on the pedestal 10, and 17 is provided perpendicularly between these bearings 15 and 16. The guide bars 18 are slidably fitted to the guide bars 17 and are attached to the workpiece support base 12.
19 is a bearing that moves up and down together with the bearing 18.
A ball screw nut is integrally provided in between, 20 is a ball screw shaft screwed into this nut 19, 21 is a geared brake motor for driving this ball screw shaft 20, and 22 (see Fig. 4) is a ball screw shaft. This is a bearing for the screw shaft 20.

That is, by driving the motor 21, the workpiece support table 12 can be raised and lowered.

In addition, 23 holds the workpiece 2 on the workpiece support stand 12.
A work table supports the transferred work piece by piece on the pedestal 10, 24 is a frame constructed on the pedestal 10 over the work support 12 and the work table 23, and 25 is a holder 26 placed below this frame 24. 27 is a slide block slidably provided on these guide bars 25; 28 is an air cylinder provided below the frame 24 for driving the slide block 27; 29 is an air cylinder provided below the frame 24; Four vacuum parts 30 are arranged below the slide block 27 for adsorbing the workpiece, and 30 are these vacuum parts 2.
This is an air cylinder for raising and lowering 9.

That is, the workpieces 2 stacked on the workpiece support table 12 are suctioned one by one by the vacuum pad 29, lifted by the air cylinder 30, and transferred onto the work table 23 by the operation of the air cylinder 28.

31 and 32 are work guide edges protruding from two sides of the work table 23, and 33 is a work guide edge 31 for guiding the work 2 placed on the work table 23.
A workpiece positioning plate is provided on the worktable 23 in order to press the workpiece against the workpiece, and 34 is an air cylinder for operating the workpiece positioning plate.

In addition, 35 (see Figure 4) is the work table 23.
The notch groove 23 is made to protrude upward from the notch groove 23a.
A workpiece positioning roller is provided movably within a, and this roller 35 is pivotally supported above the center of a horizontal member 36, as shown in detail in FIG.
Both ends of the horizontal member 36 are provided with guide rollers 3, respectively.
7 and is guided by a guide groove 38. The guide groove 38 is provided on the upper part of a plate 39 projecting from the pedestal 10, and the press side has a downward slope as shown in FIG. 6a.
Reference numeral 40 denotes an air cylinder for driving the roller 35 via the horizontal member 36, the base of which is pivotally supported by a bracket 41 protruding from the pedestal 10.

In other words, 1 placed on the work table 23
The workpiece 2 is pressed against the guide edge 31 via the plate 33 by operating the air cylinder 34, and by further contracting the air cylinder 40, the roller 37 is moved along the guide groove 38 in the direction of arrow A in FIG. 6a. Thus, the work 2 can be pressed against the guide edge 32. By doing this, the work 2 can be moved to the work table 2.
It can be set correctly in the fixed position above.
Note that once the workpiece 2 is set in the normal position, the air cylinders 34 and 40 are returned to their original positions, but at this time the roller 35 is retracted below the worktable 23 at the position shown by the solid line in FIG. 6a. , the workpiece 2 does not get in the way when moving toward the press machine 5 side.

Reference numeral 42 denotes two guide bars provided parallel to each other along the longitudinal direction of the pedestal 10.
A ball screw shaft 45 is provided in parallel with the guide bar 42 in the middle of the book guide bar 42 via bearings 43 and 44 . 46 is a DC servo motor for driving the ball screw shaft 45, 47 is an electromagnetic brake, 48 is a coupling, and 49 is an encoder provided at the other end of the ball screw shaft 45.

50 is a saddle that moves along the guide bar 42 as the ball screw shaft 45 rotates; 51 is two guide bars that pass through the saddle 50;
These two guide bars 51 are arranged horizontally and parallel to each other and perpendicular to the guide bar 42, and are connected to the saddle 50 by an air cylinder 53 disposed between the outer connecting member 52 and the saddle 50. It is designed to be able to slide freely. and guide bar 5
A grip base 54 is fixed to the inner end of the press machine 5.
A grip bracket 55 is provided protruding from the side, the base of a grip arm 56 is pivotally supported on the grip bracket 55 by a pin 57, a lever 58 is integrated with the grip arm 56, and a bracket 59 is provided protruding from the grip base 54. An air cylinder 60 for raising and lowering the grip is provided between the grips, and the tip of the grip arm 56 is moved up and down by the telescopic operation of the air cylinder 60.
is provided.

Therefore, as mentioned above, work table 2
The work 2 set in a fixed position on the press 3 is attracted by the vacuum part 61, and is transferred to the press machine 5 side via the saddle 50 by the rotation of the ball screw shaft 45, and is placed on the lower die 6 of the press. The workpiece 2 can be set at a predetermined position. Note that 62 (see Figures 3 and 4) is a work guide provided between the work table 23 and the lower mold 6 of the press, and 63 (see Figure 3) is a workpiece guide provided between the work table 23 and the lower die 6 of the press. This is the nozzle of the air blowing device that blows away when it falls from the mold 7.

As explained above, the above-mentioned device performs pressing work by combining the press machine 5 and the workpiece feeding device installed on the pedestal 10.
In this case, in order to accurately punch out the dial 1 from the workpiece 2 shown in FIG. 2, for example, the punching side A (second
(see Fig. b) and the corresponding side B (see Fig. 7) of the mold 6 attached to the press machine 5 must be accurately aligned on the line in the feed direction of the workpiece. In addition, 6a in FIG. 7 is the outer frame of the lower mold 6 of the mold,
6b is an inner mold, and 6c is a locating pin fitting hole.

The present invention is a press die positioning jig that satisfies the above-mentioned demands, and is shown in Figs. 3, 4, and 8 below.
The diagram will be explained.

In this embodiment, the vertical side of the angle-shaped bracket 64 is placed against the side wall of the press machine 5 and fixed with bolts 65 (see Fig. 3), and a linear guide rail 66 is placed on the upper side of the bracket 64. so that it can be fixed with bolts 67. In this case, the bolt insertion hole 64a provided in the bracket 64 is made a slightly rounded hole (a hole with a larger diameter) so that the fixing direction of the guide rail 66 can be corrected to some extent.

A sliding table 68 is slidably fitted into the guide rail 66, and a rod-shaped holder 69 is mounted on the sliding table 68.
A bearing 71 having a vertical hole 71a is fixed to the tip of this holder 69.
The rod 72 is inserted into the shaft 72 so that it can be moved up and down and rotated, and the rod 72 can be fixed at any position by screwing a screw 73 into the bearing 71.

Further, a bearing 74 having a horizontal hole 74a is fixed to the upper end of the rod 72, and a horizontal rod 75 is inserted into the horizontal hole 74a, so that the rod 75 can be slid horizontally and rotated freely. , a screw 76 is screwed into the bearing 74 so that the rod 75 can be fixed at any position;
The tip of the probe 75a is bent as a measuring element 75a, and the tip is formed into a needle shape. In this embodiment, the bracket 64 is fixed to the press machine 5, but this jig may be attached to the mount 10 of the feeding device, for example.

Next, how to use the jig of the present invention constructed as described above will be explained. First, the feeding direction of the workpiece feeding device,
For example, in order to achieve parallelism between the guide bar 42 on the pedestal 10 and the guide rail 66 of the jig of the present invention, loosen the screws 73 and 76, move the rods 72 and 75, and place the tip of the rod 75 on the guide bar 42. By bringing them into contact and sliding the slide table 68 along the guide rail 66, the tip of the rod 75 is moved to check the parallelism between the guide bar 42 and the guide rail 66. If they are not parallel, the direction of the guide rail 66 may be corrected by loosening the bolt 67 that fixes the bracket 64 and the guide rail 66.

Next, loosen the screws 73 and 76 again and remove the rod 7.
By moving the rods 2 and 75, the needle tip of the rod 75 is aligned with the punched side A shown in FIG. After fixing, by sliding the slide table 68 along the guide rail 66, the needle tip of the rod 75 is moved onto the mold (lower mold) 6 on the bolster plate 5b of the press machine 5. Inner mold 6 shown in Figure 7
The molds 6 and 7 are set so that the corresponding side B of b matches the needle tip of the rod 75.

In this way, the workpiece 2 fed onto the press mold 6 by the workpiece feeding device is always placed in the correct position, so that the accuracy of press working can be improved.

Since the jig of the present invention is as described above, it provides excellent effects such as being able to quickly and easily position the press die and improving the processing accuracy of the press.

[Brief explanation of drawings]

Fig. 1 is a front view of a watch face plate showing an example of a plate-shaped printed matter, Figs. FIG. 4 is a plan view thereof, FIG. 5 is a side view thereof, and FIG. 6a is an elevational view of a workpiece positioning device. FIG. 7b is a plan view thereof, FIG. 7 is a plan view of the mold, and FIG. 8 is an exploded perspective view of the jig of the present invention. 1... A clock dial showing an example of a plate-like printed matter,
2... Workpiece, 3... Reference hole, 4...
... Base, 5 ... Press machine, 5a ... Slide (elevating member), 5b ... Bolster plate,
6...lower mold, 6a...outer frame, 6b...inner mold, 7...
...Upper mold, 64...Bracket, 65...Bolt,
66...Guide rail, 67...Bolt, 68...
...Sliding table, 69...Holder, 70...Bolt,
71...bearing, 72...rod, 73...screw,
74... Bearing, 75... Rod, 76... Screw.

Claims (1)

[Claims] 1. In a combination of a workpiece feeding device and a press device, a rod that can be raised and lowered and rotated is provided at the tip of a holder that can freely slide along a linear guide rail, so that the fixed position can be adjusted. At the end of this rod, a horizontal rod that can be slid in the horizontal direction and rotated is provided so that the fixed position can be adjusted freely.
The press metal is characterized in that the tip of the rod is bent as a measuring element, and the tip is formed into a needle shape so that the linear guide rail can be mounted parallel to the feeding direction of the feeding device. Mold positioning jig.