JPH0523758A - Fitting plate for punch and die units in punch press machine - Google Patents

Abstract

PURPOSE:To provide a fitting plate for punch and die units by which a die can be exchanged easily. CONSTITUTION:In a fitting plate 6 in which a punch unit 12 and a die unit 13 of a punch press machine are installed so as to be freely attachable and detachable in the lower part of a hammer member 4, the fitting plate 6 is provided so as to be freely rotatable by a necessary angle and fixable against a frame 1 of the punch press machine, and racked and installed so that it can be positioned in a die change position by rotating it at the time of exchanging the units 12, 13 of the punch and die and separating each unit 12, 13 of the punch and the die from the hammber member 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punch press which makes it easy to replace a punch unit or a die unit with a die, and more particularly, a punch useful when applied to a punch press machine having two or more sets of punch and die units. , It relates to a mounting plate for a die-ut.

[0002]

2. Description of the Related Art A punch press machine having two or more sets of punch units and die units is known as a turret punch press machine.

In the turret punch press machine, since the die used, that is, each unit of punch and die is indexed by the turret operation immediately below the hammer member, die replacement is performed by the hammer member. The punch and die unit to be exchanged may be positioned at a position other than directly below, and the dies may be exchanged there, and there is no problem with interchangeability.

However, in a punch press machine equipped with a plurality of punch and die units in series, each punch and die unit has a hammer member C.
Since it is fixedly positioned facing the opening of the mold frame, there is a problem that it is difficult to replace the mold.

[0005]

SUMMARY OF THE INVENTION In view of the above points, it is an object of the present invention to provide a punch / die unit mounting plate that facilitates die replacement.

[0006]

SUMMARY OF THE INVENTION The structure of the present invention, which has been made to solve the above problems, has a mounting unit for a punch press machine in which a punch unit and a die unit are detachably mounted below a hammer member. -At
By providing the mounting plate so that it can be freely rotated and fixed at the required angle with respect to the frame of the punch press machine, when the unit of the punch and the die is exchanged, the mounting plate is appropriately rotated to rotate the punch and the die. The unit is mounted so as to be positioned apart from the hammer member.

[0007]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a side view of a punch press equipped with an example of the mounting plate of the present invention, FIG. 2 is a front view of the same, FIG. 3 is a side sectional view showing an essential part of the mounting plate of the present invention, and FIG. It is a block diagram showing a drive control system of a hammer member in an invention punch press machine.

In the figure, reference numeral 1 denotes a frame having a substantially C-shaped side surface.
The frame 2 is a lower frame in the opening 1a of the frame 1.
The work table 3 mounted on the upper surface of the frame 1b so as to be movable in the X-axis direction (perpendicular to the paper surface) is moved in the Y-axis direction (left and right direction in FIG. 3) on the table 2. It is a work hand that is made possible and mounted. 4 is the opening 1a of the frame 1
In the above, a hammer member disposed on the upper frame 1c is provided so that the hammer member 4 can be arbitrarily positioned on any one of punch units 12 described later in the X and Y axis directions.

FIG. 4 is a mechanism block diagram showing an example of a drive control system for the hammer member 4. In FIG. 4, 4a is a hydraulic cylinder, 4b is a piston rod of which the tip is formed as a hammer for punching. Reference numeral 4c denotes a servo control drive hydraulic system for the cylinder 4a, which includes a pressure oil source 4d, a servo control valve 4e for servo control, a pipe 4f, and a stroke sensor 4.
g, the servo control unit 4S, etc. Due to the action of this drive control system, a drive for zero acceleration can be applied to the piston rod 4b during the stroke operation.

4h is an X and Y axis moving mechanism of the hydraulic cylinder 4a. An air cylinder 4i connected to the hydraulic cylinder 4a in the X axis direction integrally mounts the hydraulic cylinder 4a and the air cylinder 4i in the Y axis direction. The member 4k is driven by the feed screw mechanism 4j.

In the punch press machine of the present invention constructed as described above, the work position of the workpiece (blank) W such as a steel plate held by the work hand 3 in a horizontal posture is set to the work position.
Positioning operation of the hand 3 in the X-axis and Y-axis directions positions it between the punch unit 62a and the die unit 63a, and hammers the punch unit 62a.
The member 4 is positioned on the X and Y axes, and the hammer member 4
The point of punching by is basically the same as the conventional punch press machine.

Here, in the hammer member 4 of the present invention, the drive source is a hydraulic cylinder 4a, and the hydraulic cylinder 4a is mainly composed of a servo control valve 4e, a servo control section 4S, a stroke sensor 4g and the like. Since it is servo-controlled and driven by a control system for controlling the stroke motion, in particular, acceleration and deceleration of the stroke motion can be arbitrarily performed by the drive control including the drive command of zero acceleration, and accordingly, the workpiece to be processed can be processed. Since the punch descending speed can be delicately controlled according to the hardness and thickness of the material, high-speed machining with less noise can be realized.

On the other hand, in the present invention, the mounting plate 6 is
In the opening 1a of the frame 1, an appropriate amount of forward and backward movement (see FIG. 1) is made on the base plate 5 arranged on the lower frame 1b so as to face the work table 2. (Right and left) is possible, and since it is mounted so that it can freely turn in a plane angle,
Hereinafter, the body structure that can be moved back and forth and can be rotated will be described.

The mounting plate 6 is first provided with a stepped portion 6a formed on the front surface of its front and rear ends (on the side of the work table 2).
Is engaged with the clamp leaf spring 7, and the edge portion of the elongated hole 6d is formed as the clamped portion 6c on the rear end side (the left end side in FIG. 3) of the bottom plate 6b of the plate 6. The portion 6c is mounted and fixed on the base plate 5 by being locked by the clamp claw 8 which is vertically moved by the clamp cylinder 8a.

Mounting plate 6 having the above-mentioned fixing structure
The structure for forward and backward sliding and angular turning is as follows.

A slot 5a is formed in the middle of the base plate 5 in the front-back direction of the mounting plate 6 (left-right direction in FIG. 1), and the mounting plate 6 is mounted in the slot 5a. A pin 9 serving as a turning center is provided, and an upper end of the pin 9 is attached to a mounting plate 6
Is fitted in a hole 6e provided in the bottom plate 6b. A holding member 9a holds an air cylinder 9b for moving the pin 9 up and down, and is provided slidably with respect to the base plate 5.

An air cylinder 9b is attached to the holding member 9a by connecting a rod of the air cylinder 9b to the pin 9, and the pin 9 is fitted into the hole 6e of the mounting plate 6 by vertically moving the air cylinder 9b. ， Is made to leave.

On the other hand, the holding member 9a has a block 9a.
Is connected to the tip of a rod 10a of a hydraulic cylinder 10 arranged adjacent to the base plate 5 in the longitudinal direction (the sliding direction of the mounting plate 6, the horizontal direction in FIG. 3). . With this configuration, the hydraulic cylinder 10 is operated and its rod
By moving the 10a forward and backward, the holding member 9a, and,
The pin 9 held by this block 9a is the base plate 5
Can be freely moved back and forth in the longitudinal direction.

As the pin 9 is moved forward and backward, the mounting plate 6 having the tip of the pin 9 fitted into the hole 6e of the bottom plate 6b moves forward and backward with respect to the base plate 5 (see the figure). (Left and right) will be possible. When the mounting plate 6 is moved back and forth, the clamp cylinder 8a is in the raised position, and the clamp claws 8 release the clamp constraint with respect to the clamped portion 6c of the bottom plate 6b of the mounting plate 6.

When the mounting plate 6 is retracted by the retreating operation of the hydraulic cylinder 10, the clamp cylinder 8a is operated to the descending side at the retracted position so that the clamp claw 8 is attached to the bottom plate 6b of the mounting plate 6. Slot 6d and base plate 5
The plate 6 is accommodated below or on the same surface as the upper surface of the base plate 5 through the accommodation hole 5b formed in the plate 6.
Can be rotated about the pin 9. Here, since the angular rotation is set to be 90 degrees, the punch unit 12 and the die unit 13 which will be described later and are mounted on the mounting plate 6.
Rotate 90 degrees so that the mounting side of the unit comes to the front, that is, rotate 90 degrees in the clockwise direction.
The side where 12 and 13 are attached is located on the front side.

In the present invention, the mounting plate 6 is moved back and forth with respect to the base plate 5 as described above.
When rotating, in order to make the operation smooth, compressed air is supplied to the contact surface (sliding surface) between the bottom plate 6b of the mounting plate 6 and the base plate 5, and the mounting plate 6 The contact load on the base plate 5 is reduced.
Reference numeral 11 denotes a plurality of air nozzles provided on the base plate 5 for supplying the compressed air to the contact surfaces of the plates 5 and 6.

Since a plurality of punch units 12 and die units 13 are detachably attached to the attachment plate 6, an example of the attachment structure will be described below with reference to FIG.

The mounting plate 6 includes a plate body 61 having a substantially lateral C-shape on its side, an upper mounting block 62 and a lower mounting block.
63 and 63 are detachably attached, and a plurality of punch units 12 and die units 13 are provided in each of the blocks 62 and 63.
It is attached by being pressed by the presser blocks 62a and 63a.
Each presser block 62a, 63a has a plurality of punch units 12 mounted on the mounting blocks 62, 63 by bolts, respectively.
And the die unit 13 are fixed. Therefore, in order to replace the punch unit 12 and the die unit 13, it is necessary to first remove the pressing blocks 62a and 63a from the mounting blocks 62 and 63.

However, the punch and die units 1
Since the mounting plates 6 of 2 and 13 face the worktable 2 side, it is difficult to replace the molds in the same orientation as above.

In view of this point, according to the present invention, the mounting plate 6 has the structure described above when the mold is replaced with a frame.
It is mounted so that it can be moved back and forth and rotated with respect to the frame 1. Next, the procedure of punch and die exchange and the operation of each component will be described in order.

First, the clamp cylinder 8a is operated in the upward direction to loosen the clamp of the clamp claw 8. At the same time as loosening, compressed air is supplied from the air nozzle 11 to reduce the contact load of the mounting plate 6 on the base plate 5 or the friction between them.

The hydraulic cylinder 10 is moved backward, and the holding member 9a, the pin 9, and the mounting plate 6 are integrated into a base press.
Retreat to 5 (80 to 90 mm here). After this retreat, the clamp cylinder 8a is actuated to the descending side, and the clamp claw 8 is housed in the hole 5b of the base plate 5. Compressed air is continuously supplied from the air nozzle 11.

After the above operation, when a force is applied to pull the mounting plate 6 toward the front side, the plate 6 rotates around the pin 9 toward the front side. This rotation is blocked here by a stopper (not shown) acting at 90 degrees. This rotational force may be transmitted to the mounting plate 6 via the pin 9 so that the driving force of the motor or the like may be transmitted, and the mounting plate 6 may be rotated by power.

When the mounting plate 6 is rotated in the above-described posture, the punch die units 12, 13 mounted on the mounting plate 6 and the mounting block mounting and holding these units.
62, 63 and the presser blocks 62a, 63a are the hammer member 4
Facing away from the lower part of the front of the operator.

Therefore, if the bolts are loosened and the holding block 62a is removed, each punch unit 12 can be removed from the mounting block 62, and when the holding block 63a is removed, each die unit 13 is removed from the mounting block 63. It is ready to be put out.

Therefore, by exchanging the punch / die pair to be exchanged and attaching the presser blocks 62a and 63a, the die exchange is completed.

The mounting plate 6 after the replacement of the mold is rotated 90 degrees in the opposite direction to the above. Since there is a stopper (not shown in the figure) at the end of rotation, rotate it until it hits the stopper.

When the mounting plate 6 returns to the original posture, the clamp cylinder 8a is operated to the upward side and the clamp claw 8 is positioned at a clampable height. After that, the hydraulic cylinder 10 is operated to the forward side. The forward movement of the mounting plate 6 is stopped when the step 6a on the front surface of the mounting plate 6 is engaged with the clamp leaf spring 7. At this stage, the supply of the compressed air from the air nozzle 11 is terminated and the clamp cylinder 8a is operated to the lower side, so that the clamp claw 8 is attached to the mounting plate 6.
Clamped part due to the edge of slot 6d formed in bottom plate 6b of
6c is clamped and ready for the next press work.

[0034]

The present invention is as described above, and in a punch press machine, in particular, a mounting plate having a plurality of punch and die units can be angularly rotated with respect to the frame. If it exists, it is mounted so that it can be moved back and forth along with this rotation, so it is a non-turret type punch press machine, and even if it is a punch press machine, there is a special effect that punches and dies can be easily replaced.

In the punch press of the present invention, a hammer
The member is driven by a hydraulic cylinder as a drive source, and the hydraulic cylinder is servo-controlled by a control system mainly including a servo control valve, a servo control unit, a stroke sensor, etc. The acceleration and deceleration of the stroke motion can be freely performed by the drive control including the drive command of zero acceleration. Therefore, the punch descending speed is delicately controlled according to the hardness and thickness of the work material. -Because you can
High-speed machining with less noise can be realized.

[Brief description of drawings]

FIG. 1 is a side view of an example of a punch press equipped with a mounting plate of the present invention.

FIG. 2 is a front view of the punch press machine shown in FIG.

FIG. 3 is a side sectional view showing an example of the mounting plate of the present invention.

FIG. 4 is a block diagram of a hammer member drive control system in the punch press of the present invention.

[Explanation of symbols]

1 frame 2 worktables 3 work hand 4 Hammer member 5 base plates 6 Mounting plate 7 Clamp leaf spring 8 clamp claws 9 pin 10 hydraulic cylinder 11 Air nozzle 12 punch unit 13 die unit

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[Procedure amendment]

[Submission date] May 14, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 4

[Correction method] Change

[Correction content]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

FIG. 4 is a mechanism block diagram showing an example of a drive control system for the hammer member 4. In FIG. 4, 4a
Is a hydraulic cylinder, and 4b is a piston rod of which the tip is formed as a hammer for punching. Reference numeral 4c denotes a servo control drive hydraulic system for the cylinder 4a, which is a pressure oil source 4
d, a servo control valve 4e that is servo-controlled, a pipe 4f, a stroke sensor 4g, a servo control unit 4S, and the like.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction content]

Here, in the hammer member 4 of the present invention, the drive source is a hydraulic cylinder 4a, and the hydraulic cylinder 4a is servo-controlled by a control system mainly composed of a servo control valve 4e, a servo control section 4S, a stroke sensor 4g and the like. Since it is driven, the stroke motion can be accelerated and decelerated freely, and therefore the punch descending speed can be delicately controlled according to the hardness and thickness of the work material. High-speed machining with less noise can be realized.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0035

[Correction method] Change

[Correction content]

In the punch press of the present invention, the hammer member is driven by a hydraulic cylinder as a drive source, and the hydraulic cylinder is servo-controlled by a control system mainly including a servo control valve, a servo control section, a stroke sensor and the like. Since the stroke motion can be accelerated and decelerated as desired, the punch descending speed can be delicately controlled according to the hardness and thickness of the work material. Can be realized.

Claims (4)

[Claims] 1. A mounting plate of a punch press machine in which a punch unit and a die unit are detachably mounted below a hammer member, and a frame of the punch press machine is provided.
When the punch and die unit is exchanged, the mounting plate is rotated by a desired angle so that the punch and die unit can be rotated by a desired angle so that the punch and die unit can be rotated by a hammer member. A mounting plate for a punch and die unit in a punch press machine, characterized in that it is mounted so as to be positioned apart from. 2. The mounting plate is a frame of a punch press machine.
The plate for mounting a punch and die unit in a punch press according to claim 1, which is mounted so as to be slidable back and forth by an appropriate amount. 3. The mounting plate is supplied with compressed gas from the frame side when rotating or sliding back and forth,
A plate for mounting a punch and die unit in a punch press according to claim 1 or 2, wherein the operation is smoothed. 4. A hammer member that performs punching operation,
A hydraulic cylinder is used as a drive source, and the hydraulic cylinder is driven by servo control by a speed command including a command value of zero acceleration during stroke operation.
Punch and die unit mounting plate for any of the punch presses of 3.