JPH09155468A - Punch press - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the cost by synchronously moving a punch head and a die head with the drive of a single driving motor and reducing the number of controlling shafts. SOLUTION: A punch head 25 attaching a punch P is installed on an upper frame 3U, and a die head 11 attaching a die D is installed at the right down position of the punch head 25 on a lower frame 3D. Each drive transmission means 13 is installed to each of the punch head 25 and the die head 11, and the each drive transmission means 13 is driven with a single driving motor. That is, when the driving motor is started, the driving pulley is rotated through a power shaft, a timing belt is rotated, and ball screws 17, 29 are rotated synchronously. With the rotation of the ball screws 17, 29, the punch head 25 and the die head 11 are moved synchronously.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punch press having an improved drive mechanism for driving a punch head having a punch and a die head having a die.

[0002]

2. Description of the Related Art Conventionally, in a punch press, for example, a composite processing machine for punching and heat cutting, (1). punch,
Means for individually driving each of the die, torch or laser processing head by using a drive mechanism such as a ball screw, LM guide or rack and pinion,
(2). Means for connecting punches and dies with one frame of, for example, C-shape and driving them using one ball screw and rack and pinion drive mechanism (3). A means for providing a punch, a die, a torch, or a laser on one head or frame and driving them with one drive mechanism, and (4). A means for driving the punch, the die, the torch, and the laser by separate driving mechanisms is known.

[0003]

By the way, among the above-mentioned conventional driving means, the driving means of (1) has a problem that it is expensive because each has a control axis and the number of parts is large. In the drive means of (2), since one frame of, for example, C shape moves, a machine space twice as large as the work to be processed is required, and the machine becomes large.

Further, in the driving means of (3), the mold and the torch or laser simultaneously move in the vicinity, so that the mold is adversely affected by sputtering or the like. In addition, when the die is replaced, the punch head and the die are integrated (adjacent to each other), which makes it difficult to replace the die. Furthermore, the drive means of (4) has a high price because it has its own control axis.

The object of the present invention is to reduce the cost by reducing the number of control axes, to protect the die from the effects of spatter and dust caused by, for example, thermal cutting, and to replace only the punch and die when exchanging the die. It is to provide a punch press that can be moved and replaced easily.

[0006]

In order to achieve the above object, a punch press of the present invention according to claim 1 provides a punch head having a punch attached to an upper frame and a die head having a die attached to a lower frame. The punch head and the die head are each provided with a drive transmission means directly below the head, and each drive transmission means is driven by one drive motor. The drive transmission means on the die head side is provided with a clutch means. It is characterized by becoming.

Therefore, by driving one drive motor, the punch head and the die head are moved synchronously via each drive transmission means. Thus, the number of control axes is reduced as compared with the conventional case, and the punch and die are moved in synchronization with each other. When the clutch means provided in the drive transmission means on the die head side is turned on, the punch head and the die head move in synchronization, and when the clutch means is turned off, the die head does not move but only the punch head moves. Thus, when exchanging the die, the punch and the die are separated and the die is exchanged.

A punch press according to a second aspect of the present invention is the punch press according to the first aspect, characterized in that drive transmitting means on both sides of the punch head and the die head are provided with clutch means, respectively. .

Therefore, when the clutch means provided in the drive transmission means on the punch head side is turned on and the clutch means provided on the drive transmission means on the die head side is turned off,
Only the punch head is moved. Further, the clutch means provided in the drive transmitting means on the die head side is turned on, and the clutch means provided in the drive transmitting means on the punch head side is turned off.
When set to F, only the die head is moved. Thus, the punch and die are individually moved.

A punch press of the present invention according to claim 3 is the punch press according to claim 1 or 2, wherein the punch head is provided with a processing head for thermal cutting.

Therefore, even when the heat cutting processing head provided in the punch head is used for heat cutting the work, the heat cutting processing head is moved by one drive motor.
Then, when the clutch means provided in the drive transmission means on the die head side is turned off, only the punch head moves and the processing head for thermal cutting moves, so that the die is protected from spatter and dust adhesion.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 1, a combined punch and heat cutting machine 1 as a punch press is provided with a gate-shaped frame 3, and an upper frame 3U and a lower frame 3 are provided.
D and D are integrated by a side frame (not shown).

On the lower frame 3D, a guide rail 5 extending in a direction perpendicular to the paper surface in FIG.
And a die base 9 is provided on each of the guide rails 5 via a guide block 7. A die head 11 having a plurality of dies D mounted thereon is provided on the die base 9. A nut member 15 which is a part of the drive transmission means 13 is integrated in the lower right side of the die base 9, and the nut member 15 has a ball screw 17 extending in a direction orthogonal to the paper surface in FIG. It is screwed.

With the above structure, the ball screw 17 is rotated, and the die base 9 is inserted through the nut member 15.
1 is moved in the direction orthogonal to the paper surface in FIG. 1, the die head 11 having the die D mounted thereon is also moved in the same direction.

Similarly, a guide rail 19 is laid in the lower portion of the upper frame 3U in a direction orthogonal to the paper surface in FIG. 1, and a punch base 23 is provided on the guide rail 19 via a guide block 21. Is provided. A punch head 25 having a plurality of punches P mounted thereon is provided on the punch base 23.

A nut member 27 is integrally formed on the upper right side of the punch base 23 in FIG. 1, and a ball screw 29 is screwed into the nut member 27 in a direction orthogonal to the paper surface in FIG. There is.

With the above construction, when the ball screw 29 is rotated, the punch base 23 is moved through the nut member 27 in the direction orthogonal to the paper surface of FIG. 23 will also be moved in the same direction.

A punch cylinder 31 is provided on the punch base 23. A piston rod (not shown) attached to the punch cylinder 31 is provided with a ram 33 that is movable in the left-right direction in FIG.

With the above structure, after the ram 33 is positioned above the desired punch P, the punch cylinder 31 is operated to move the ram 33 up and down, whereby the desired punch P and the die D cooperate with each other. Work to be processed by
Punching will be performed.

On the punch base 23, for example, a laser processing head 35 as a thermal cutting processing head is provided so as to be vertically movable by a cylinder (not shown). Therefore, when performing laser processing on the workpiece W to be processed, the laser processing head 35 is lowered to an optimum position and positioned, and laser processing is performed. A plasma processing torch may be provided instead of the laser processing head 35.

The work W to be processed is moved in the left-right direction in FIG. 1 by a known movement positioning device. This moving / positioning device is composed of a carriage that can be moved in the left-right direction in FIG. 1 by a ball screw and a nut member, and a work clamp provided in the carriage.

Referring also to FIG. 2, a table 37 is fixed on the left side of the lower frame 3D, and a stroke table 39 is provided on the right side of the lower frame 3D so as to be movable in the left and right directions. Moreover, as shown in FIG. 2, the stroke table 39 has a cutout portion 39A at the upper left end portion in FIG.

The position where the die base 9 is moved to the upper side in FIG. 2 is a die home position position DP, and a die cover 41 is provided above the die home position position DP. The body frame (not shown) has a guide rail 43 extending in the left-right direction in FIG.
The guide rail 43 is provided with the stroke table 39 via a guide block 45. An air cylinder 47 is attached to a body frame (not shown).
The tip of the piston rod 49 attached to the No. 7 is attached to the lower portion of the stroke table 39.

With the above construction, when the work W is punched, the stroke table 39 is in the state shown in FIG. 2, but when the work W is laser-processed, the die base 9 is moved to the die home. When the die D is moved to the position DP to cover the die D with the die cover 41 and the air cylinder 47 is actuated to project the piston rod 49, the stroke table 39 is moved leftward in FIGS. With the die passage 51 covered, the die and the like are protected from spatter and dust generated during laser processing, and the work W is prevented from hanging down.

One end of each of the ball screws 17 and 29 is shown in FIG.
Further, as shown in FIG. 4, the body frame 53 is rotatably supported by bearings 55 and 57, and pulleys 59 and 61 are attached thereto. A motor base 63 is attached to the main body frame 53, and a drive motor 65 is provided on the motor base 63.

A plurality of idler pulleys 67, 69 are rotatably supported on the body frame 53. A drive pulley 73 is attached to the output shaft 71 of the drive motor 65. The drive belt 73, the pulleys 59 and 61, and the idler pulleys 67 and 69 have timing belts 7
5 are wound. A plurality of belt tension bolts 77 for adjusting the tension of the timing belt 75 are attached to the motor base 63.

With the above structure, when the drive motor 65 is driven, the drive pulley 73 is rotated through the output shaft 71, so that the timing belt 75 is rotated and rotated, and the ball screw 17, through the pulleys 59, 61. 29 will be rotated in synchronization. The rotation of the ball screws 17 and 29 causes the punch head 25 and the die head 11 to move synchronously.

As shown in FIG. 5, a boss 79 is rotatably supported by the ball screw 29 through a bearing 57 on the right side of the pulley 61 in FIG.
The boss 79 is provided with one side 83A of the face clutch 83 as clutch means. A clutch boss 85 is attached to the ball screw 29 so as to be axially slidable via a key 87 so as to face the one side 83A.

A clutch cylinder 89 is provided on the right side of the clutch boss 85 in FIG. 5, and a clutch piston 91 is provided in the clutch cylinder 89. In addition, a clutch spring 93 is provided on the right side of the clutch piston 91, and is normally urged to the left side so that one side 83A of the face clutch 83 and the clutch boss 8 are urged.
5 is engaged and turned on.

A plate 95 is attached to the upper side of the clutch cylinder 89 in FIG. 5, and the plate 95 is provided with proximity switches 97 and 99 for engaging the clutch and engaging the clutch. Clutch solenoid 1 for moving the clutch piston 95 to the right against the biasing force of the clutch spring 93.
01 is provided on the clutch piston 95 via a pipe 103.

A pin ring 105 is attached to the outer periphery of the left end of the clutch boss 85 with a pin 107. A shot pin hole 109 is formed in the lower portion of the pin ring 105. A shot pin cylinder 111 is provided below the clutch cylinder 89, and the shot pin 113 has a shot pin 113 shown in FIG.
It is provided so that it can move up and down.

A shot pin solenoid 119 is connected to the shot pin cylinder 111 through pipes 115 and 117. Further, the shot pin cylinder 111 is provided with auto switches “ON” and “OFF” 121, 123.

With the above construction, when laser processing is performed, the clutch solenoid 101 is actuated to move the clutch piston 91 to the right side in FIG. 5 against the biasing force of the clutch spring 93 by air (or hydraulic pressure). The clutch boss 85 is disengaged from the one side 83A of the face clutch 83, and the clutch on / off switch 97 is turned off.

Moreover, the shot pin solenoid 119 is operated, the shot pin cylinder 111 is operated, air is sent from the pipe 117, the shot pin 113 rises in FIG. 5, and enters the shot pin hole 109. At this time, the auto switch “ON” 121 is turned on, indicating that the face clutch 83 is disengaged, and the preparation for laser processing is completed.

Then, by driving the drive motor 65, the die head 9 does not move, but only the punch head 25 moves at the die home position DP, and the workpiece W is laser-processed. At this time, since the die D is the die cover 41 and the stroke table 39 covers the die passage 51, spatters and dust generated during the laser processing can be protected without entering the die D and the die passage 51.

Next, when the punching process is started from the laser processing, the punch head 25 returns to the home position (return to the origin). Then, the proximity switch 9 for clutch engagement
7 is turned off, and it is confirmed that the pulley 61 is at the clutch engagement position.

When the shot pin solenoid 119 is switched to the "disengagement" side, air is sent from the pipe 115 to lower the shot pin 113, remove the shot pin 113 from the shot pin hole 109, and after confirming the "disengagement" auto switch 123. , The clutch solenoid 101 is turned to the “on” side, the clutch boss 85 is moved to the pulley 61 side by the urging force of the clutch spring 93, and the one side 8 of the face clutch 83 is moved.
Chew 3A. When the clutch engagement proximity sensor 99 is engaged, preparation for punching is completed.

By driving the drive motor 65, the punch head 25 and the die head 9 move in synchronism with each other, and the work W is punched.

In the punching mode and the laser mode, the face clutch 83 is turned on and off to punch P,
The three axes of the die D and the laser processing head 35 can be positioned and processed by one drive motor 65.

At the time of die replacement, the face clutch 83 is disengaged and only the punch P is moved to separate the punch P and the die D so that the punch P can be exchanged in front and the die D can be exchanged in die later.

The present invention is not limited to the examples of the above-described embodiments, but can be implemented in other modes by making appropriate changes. Although the face clutch 83 is used as the clutch means in the above description, an electromagnetic clutch may be used. Further, the punch / heat cutting multifunction machine 1 has been described, but a movable punch press of the punch P and the die D may be used. Furthermore, the example in which the drive transmission means 13 on the die side is provided with the clutch means has been described.
It is also possible to provide clutch means on both the punch-side and die-side drive transmission means. In this case, since the punch P and the die D can separately perform the same operation at the time of exchanging the mold, it is not necessary to set the exchange positions of the punch P and the die D separately, and after the punch P is performed, the punch P and the die D are separated. Only the die D can be moved forward and replaced.

[0043]

As can be understood from the above-described embodiments, the invention of claim 1 drives one driving motor to drive the punch head and the die head through the respective drive transmission means. Are moved in sync,
It is possible to reduce the number of control axes and move the punch and die in synchronism with each other, and to reduce the cost.

When the clutch means provided in the drive transmission means on the die head side is turned on, the punch head and the die head are moved in synchronization, and when the clutch means is turned off, the die head does not move but only the punch head moves. Therefore, the punch and the die can be separated from each other when the die is exchanged, and the die can be exchanged, and the work at the time of die exchange can be facilitated.

According to the second aspect of the present invention, the clutch means provided in the punch head side drive transmission means is turned on, and the clutch means provided in the die head side drive transmission means is OF.
When set to F, only the punch head is moved. Also, turn on the clutch means provided in the drive transmission means on the die head side.
Then, when the clutch means provided in the drive transmission means on the punch head side is turned off, only the die head is moved. Thus, the punch and the die can be individually moved, and the dies can be exchanged separately.

According to the third aspect of the present invention, even when the thermal cutting machining head provided in the punch head is used for thermal cutting of the work, the thermal cutting machining head can be moved by one drive motor. . Then, when the clutch means provided in the drive transmission means on the die head side is turned off, only the punch head moves and the processing head for thermal cutting moves, so that it is possible to protect the die from spatter and dust. .

[Brief description of the drawings]

FIG. 1 is a side view of a punch / heat cutting combined processing machine according to an embodiment of the present invention.

FIG. 2 is an arrow view along the line II-II in FIG.

FIG. 3 is an enlarged view of a drive transmission portion that moves a punch head and a die head.

FIG. 4 is a view on arrow IV in FIG.

FIG. 5 is an enlarged view of a portion viewed from an arrow V in FIG. 3;

[Explanation of symbols]

 1 Punch and Heat Cutting Combined Processing Machine (Punch Press) 3U Upper Frame 3D Lower Frame 11 Die Head 13 Drive Transmission Means 17 Ball Screw 25 Punch Head 35 Laser Processing Head (Processing Head for Heat Cutting) 59, 61 Pulley 65 Drive Motor 73 Drive Pulley 75 Timing belt 83 Face clutch (clutch means)

Claims (3)

[Claims] 1. A punch head having a punch attached to an upper frame and a die head having a die attached to a lower frame are provided directly below the punch head, and drive transmission means is provided to each of the punch head and the die head. A punch press, characterized in that the drive transmission means is configured to be driven by one drive motor, and the drive transmission means on the die head side is provided with clutch means. 2. The punch press according to claim 1, wherein clutch means is provided on each of the drive transmission means on both sides of the punch head and the die head. 3. The punch press according to claim 1, wherein the punch head is provided with a processing head for thermal cutting.