JPH1157902A - Finished work taking out device of press machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten setup time, to do without an exclusive stacker and then to increase productibility by supporting a finished work subjected to blanking at the lower part and controlling a lifting device for shifting up and down the supporting member. SOLUTION: When press working is finished and then an upper die 14 fixed to a slide 20 is released from a clamping device and set free on a lower die 13, and a plate 11 is also released from a bolster 8, a die lifter 9 is made to go up and a die 12 is carried out of the bolster 8. When the die 12 carried out of a press machine 5 is taken out of the plate 11, the work 22 laid in a die holder 17 of the lower die 13 is shifted from the plate 11 to a product pallet by an operator. On the other hand, by the die replacing operation, the succeeding die is carried onto the bolster 8, and the press work of the succeeding work is started. In this way, the work 22 is taken out outside the press machine 5, so that the setup time is shortened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machined product take-out apparatus for a press machine which mainly performs blanking processing, and is effective when it is desired to continuously perform high-mix low-volume production.

[0002]

2. Description of the Related Art Conventionally, a device for taking out a processed product in a press machine for performing blanking processing discharges the processed product from the lower part of the mold to the outside of the die using a conveyor or a product chute. In order to prepare for processing, they were often aligned using a stacking device dedicated to the processed product. For example, JP-A-59-7435 uses a conveyor as shown in FIG. In FIG. 5, the punched motor cores 2 are dropped on a conveyor 3 provided at a lower portion of the mold 1 by a predetermined number, and are discharged to the outside of the mold 1. The discharged motor core 2 is provided with a stacking device (not shown) and is ready for the next processing.

[0003]

SUMMARY OF THE INVENTION In the above press machine,
When manufacturing a variety of processed products with different shapes in small quantities, it is necessary to replace the stacking device together with the mold. It is causing a decline. Furthermore, since a stacking device must be prepared for each of the workpieces having different shapes, there are problems that the cost of the equipment increases and that an installation space for the stacking device needs to be secured.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to provide a low-cost, high-productivity configuration that can shorten the setup time and eliminate the need to provide a dedicated stacking device in blanking of a large variety of products. An object of the present invention is to provide an apparatus for removing a processed product of a press machine having the same.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a press machine for blanking a coil material or a fixed-length material, which comprises a die having an upper die and a lower die. A mounted plate, a die loading / unloading device for loading / unloading the plate with respect to the press machine, a die holder provided on the lower die and having a stock hole for accumulating blanked workpieces, and a blanking process A support member that directly or indirectly supports the processed workpiece, and a hole through which the support member passes through the bolster and the plate,
A lift device for raising and lowering the support member and a control device for controlling the lifting and lowering of the lift device constitute a workpiece removal device of the press machine.

[0006] Alternatively, the above-mentioned mold loading / unloading device is used as a moving bolster to constitute a workpiece removal device of a press machine.

Further, in the above-mentioned workpiece removal device, a rail is provided on the bed side, and a rotatable roller is provided on the lift device side, so that the lift device is movable on the rail, and the lift device is lifted at an arbitrary position on the rail. A workpiece removal device for a press machine provided with a lock device capable of fixing the device.

[0008]

1 and 2 show an embodiment of a press machine according to the present invention. As shown in FIG. 1, columns 7 and 7 are provided on a press machine 5 and a bed 6 to support a crown (not shown). On bed 6, bolster 8
And a die lifter 9 extending long in the front-rear direction is provided on both upper surfaces of the bolster 8.

At the time of carrying in the mold change, the plate 11 on which the mold 12 is mounted slides on the rollers 10 arranged in a row on the rails 9A of the die lifter 9 in the raised state, and reaches the fixed position of the bolster 8. Then, the die lifter 9 descends and the outer peripheral surface of the roller 10 is buried in the bolster 8. The plate 11 that has landed on the bolster 8 is fixed by a clamp device (not shown). Further, when the press working is completed and the mold is to be exchanged, the plate 11 released from the clamp device slides on the rollers 10 of the raised die lifters 9 and 9 and is unloaded to the front or rear from within the press machine 5. And
The plate 11 to which another mold is attached is carried into the press machine 5.

A mold 12 mounted on a plate 11
Is composed of a lower mold 13 and an upper mold 14. Upper mold 14
Is a punch 19 for punching the material 21 supplied onto the lower die 13, and a punch holder 18 to which the punch 19 is attached and which is attached to the slide 20 by a clamp device (not shown).
It is composed of The lower die 12 has a die 16 having a die hole 16A for punching the material 21 by engaging with the punch 19 of the upper die 14 on the upper surface, and the material 21 which is provided on the die 16 and which has been cut by the punch 19 at the time of press working is removed. It comprises a stripper plate 15 and a die holder 17 to which the stripper plate 15 and the die 16 are fixedly attached to the plate 11.

The die holder 17 of the lower die 13 has a stock hole 17A for accumulating the press-processed workpiece 22, and a receiving stand for loading the workpiece 22 inside the stock hole 17A of the die holder 17. 23 are provided. One end surface of pins 24, 24 penetrating the bolster 8 and the pin holes 8A, 11A provided in the plate 11 abuts on the receiving base 23, and is provided on an upper part of a lift device 26 fixed inside the bed 6. The other end surfaces of the pins 24, 24 abut on the pad 25, and stand upright.
A processed product 22 that has been pressed and loaded on 3 is supported. That is, the pin 24 constitutes a support member for the workpiece 22. And if the processed product 22 is not easily damaged and the deformation is not regarded as a problem, the cradle 23 is unnecessary.

Prior to loading the mold 12 onto the bolster 8, the pins 24, 24 are aligned with the pedestal 23 of the mold 12 to be used in advance, and the pin holes 8A and 8A provided in the bolster 8 and the plate 11 are provided. 11A, it is erected on the pad 25.

A control device 30 composed of a hydraulic circuit shown in FIG. 2 is connected to the lift device 26. As shown in FIG. 2, the upper cylinder chamber 26B and the lower cylinder chamber 26C of the lift device 26 are connected by connecting a throttle valve 31 and a check valve 32, respectively, and a check control valve 33A or a check control valve 3 is provided.
It is connected to the X port or Y port of the electromagnetic switching valve 34 via 3B. The X 'port corresponding to the X port is directly connected to the oil tank 35, and the Y' port corresponding to the Y port is connected to the hydraulic pump 28 via a check valve 36, and the hydraulic oil pumped from the oil tank 35 by the hydraulic pump 38. To the Y 'port. The neutral position of the electromagnetic switching valve 34 connects X, Y and X 'and closes Y'.

When the electromagnetic switching valve 34 is switched by energizing the side A, X and X 'and Y and Y' are connected, and pressure oil is supplied from the check valve 33B to the lower cylinder chamber 26C. , The check valve 33A is opened, and the oil in the upper cylinder chamber 26B returns to the oil tank 35. Therefore, FIG.
The piston 26A of the lift device 26 shown in FIG. 4 rises, and the cradle 23 rises via the pins 24,24. Cradle 2
3 is the upper limit position, and when the A side energization of the electromagnetic switching valve 25 is interrupted, the position returns to the neutral position. When the press working is performed while holding at the neutral position, the pedestal 23 pushed up through the work 22 is lifted by the lift device 26 through the pins 24, 24.
Is gradually pushed down. Piston 26A
Is gradually depressed while maintaining an upward pressure.

When the press working is completed, the electromagnetic switching valve 34 is energized and switched to the B side to switch the electromagnetic switching valve 34 to supply pressure oil to the upper cylinder chamber 26B of the lift device 26, and the check valve 24 is controlled by the pressure of the pressure oil.
By opening B, the oil in the lower cylinder chamber 26C is returned to the oil tank 35, and the piston 26A is lowered to the lower limit. FIG. 1 shows the state of the lower limit, in which the pins 24 are at the lower limit and the upper end is retracted into the bolster 8. In this state, the processed product 22
Is placed on the plate 11.

When the upper die 14 attached to the slide 20 is released from the clamp device (not shown) and is removed from the lower die 13, the bolster 8 and the plate 11 are released from the clamp device (not shown). Then, the die lifter 9 is lifted to carry out the mold 12 from above the bolster 8. When the mold 12 carried out of the press machine 5 is removed from the plate 11, the processed product 2 loaded in the die holder 17 of the lower mold 13
2 is transferred from the plate 11 to a product pallet (not shown) by an operator.

On the other hand, the next mold is carried into the bolster 8 by the above-described mold exchanging operation, and the process proceeds to the press working of the next processed product. As described above, since the processed product 22 is taken out of the press machine 5, the setup time can be reduced.

FIG. 3 shows a second embodiment of the present invention.
It is replaced with a moving bolster 48. FIG.
As shown in (1), when mounting the mold 42 on the moving bolster 48, the die holder 47 of the lower mold 43 is directly mounted on the moving bolster 48 without using the plate in the first embodiment, and the processed products 52 are accumulated in the die holder 47. 47A, and pin holes 47B, 47B of pins 54, 54 for supporting a receiving stand 53 provided for loading the processed product 52. Bed 56
Are provided with pin holes 56A, 56A. When the moving bolster 48 is transported out of the press machine 45, the pin 5
4 and 54 are retracted from the upper surface of the bed 56 so that the pins 5
4 is shorter than that of the first embodiment, and the lift stroke length of the lift device 46 needs to be longer by the thickness of the moving bolster 48. In addition, similarly to the first embodiment,
If the processed product 52 is not easily damaged and the deformation is not regarded as a problem, the cradle 53 is unnecessary.

FIG. 4 shows a third embodiment of the present invention, wherein the lift device 66 fixed inside the bed 76 in the first embodiment is movable. As shown in FIG. 4, the lift device 66 is provided with rollers 67, 67,
The bed 76 is provided with rails 68, 68 and a lock device 71. The lift device 66 is capable of moving on the rails 68, 68 in the left-right direction, and adjusts the position of the lift device 66 via holes 76A, 76A provided on the front and rear surfaces of the bed 76 in accordance with the pressing position and the processing shape. I can make adjustments.

When adjusting the position of the lift device 66, the fastening bolts 7 of the lock device 71 provided before and after the bed 76 are used.
0 and 70 are loosened, and the roller 6 provided on the lift device 66 is loosened.
Retainers 69, 69 are released from 7, 67. As a result, the lift device 66 can move on the rail, and after setting the position of the lift device 66 through the holes 76A, 76A provided on the front and rear surfaces of the bed 76, the fastening bolts 70, 70 are tightened and the rollers 67, 67 are tightened. Are fixed by retainers 69, 69.

In the third embodiment, the lift device can be moved in the first embodiment, but the lift device can be similarly moved in the second embodiment, though not shown.

[0022]

As is apparent from the above description, according to the present invention, the blanked workpiece is loaded in the space inside the lower die, and the die is replaced in that state. It becomes unnecessary, the preparation time for the next processed product can be shortened, and the productivity in blanking processing of various kinds and small quantities can be improved with inexpensive equipment.

[Brief description of the drawings]

FIG. 1 is a side view of a main part of a press machine according to a first embodiment of the present invention.

FIG. 2 is a hydraulic circuit diagram of a control device connected to a hydraulic cylinder of the lift device.

FIG. 3 is a side view of a main part of a press machine according to a second embodiment of the present invention.

FIG. 4 is a side view of a main part of a press machine according to a third embodiment of the present invention.

FIG. 5 is a front view of a main part of a conventional press machine.

[Explanation of symbols]

5, 45 are press machines, 6, 56, 76 are beds, 7 is columns, 8 is bolsters, 8A, 11A, 47B, 56A.
Is a pin hole, 9 is a die lifter, 10 is a roller, 11 is a plate, 12 and 42 are molds, 13 and 43 are lower molds, 14 is an upper mold, 15 is a stripper plate, 16 is a die, 16A is a die hole, and 17 is a die hole. , 47 are die holders, 17A and 47A are stock holes, 18 is a punch holder, 19 is a punch, 20
Is a slide, 21 is a slide, 22 and 52 are processed products, 2
3, 53 are cradle, 24, 54 are pins, 25 is pads,
26, 46, 66 are lifting devices, 26A is a piston, 2
6B is an upper cylinder chamber, 26C is a lower cylinder chamber, 30 is a control device, 31 is a throttle valve, 32 is a check valve, 33A and 33B.
Is a check valve, 34 is an electromagnetic switching valve, 35 is an oil tank, 3
6 is a check valve, 37 is a hydraulic pump, 48 is a moving bolster, 67 is a roller, 68 is a rail, 69 is a retainer,
70 is a fastening bolt, 71 is a lock device, and 76A is a hole.

Claims (3)

[Claims] 1. A press machine for blanking a coil material or a fixed length material, comprising: (a) a plate on which a mold composed of an upper mold and a lower mold is attached; A mold loading / unloading device for loading / unloading
(C) a die holder provided in the lower die and having a stock hole for accumulating the blanked workpiece;
(D) a supporting member that directly or indirectly supports the blanked workpiece, (e) a hole through which the supporting member passes through the bolster and the plate, and (f) a supporting member. A machined product take-out device for a press machine, comprising: a lifting device for raising and lowering; and (g) a control device for controlling the lifting and lowering of the lifting device. 2. A device according to claim 1, wherein said mold loading / unloading device is a moving bolster. 3. A rail according to claim 1, wherein a rail is provided on the bed side, and a rotatable roller is provided on the side of the lift device, so that the lift device is movable on the rail so that any position on the rail is possible. A workpiece removal device for a press machine, wherein a lock device capable of fixing a lift device is provided.