JPH0523757A - Punch press machine provided with fitting plate of units of punch and die suitable for automatic change - Google Patents

Abstract

PURPOSE:To constitute a fitting plate in which each unit of a punch and a die, of a structure by which it can be removed and installed easily from and to a frame of this press machine, and to execute various punch press working by changing those fitting plates themselves. CONSTITUTION:In an opening side 1a of a frame 1 whose side face is roughly a C-shape, each unit of plural punches and dies is installed. Between each punch unit 7 and die unit 8 which are installed, a fitting plate 6 formed so that a stock to be worked can be inserted and detached and moved from the inside of the frame 1 is provided. The fitting plate 6 is freely slidable and fixable against the frame 1, and also, racked and installed so as to be freely separable and installable in its frame 1 by said slide. In such a way, a change of each die is not executed, and it can be changed together with the fitting plate 6 by a single operation, therefore, many kinds of working can be executed as labor saving by far in the same way as changing a die.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punch press machine having a mounting plate on which a plurality of punch and die units are mounted, the punch press machine having a mounting plate of a structure suitable for automatic exchange. It is about.

[0002]

2. Description of the Related Art Conventionally, as a punch press machine having a plurality of mounting plates, a turret punch press machine and the like have been put into practical use and are known. Further, a non-turret type punch press machine, which is not a turret type but is equipped with a plurality of punch and die units, is also known.

This non-turret type punch press machine is
Since as many dies (units for punch and die) as a turret punch press cannot be installed, a large number of punch press machines must be used to handle a wide variety of machining shapes with this type of punch press machine. In addition to the difficulty of preparing the molds, it is necessary to frequently replace the molds, which requires a lot of labor and time for setup, and there is a problem that the work effect is not improved.
Moreover, since most of the die replacements are carried out manually, the punch press machine that requires such die replacement is not suitable for automatic operation, especially unattended automatic operation at night. .

[0004]

In view of such a point,
SUMMARY OF THE INVENTION The problem to be solved by the present invention is to form a non-turret type punch press machine having a plurality of punch and die units so that the whole plate can be automatically exchanged without frequent die exchange. Therefore, it is an object of the present invention to develop a punch press machine equipped with a mounting plate capable of performing a wide variety of punch press processing as good as a turret punch press machine.

[0005]

In order to solve the above-mentioned problems, the structure of the present invention has a plurality of punch and die units mounted on the opening side of a frame having a substantially C-shaped side surface. At the same time, a mounting plate formed so that the work piece can be inserted into and removed from the inside of the frame between each of the mounted punch units and the die unit is slid with respect to the frame. It is characterized in that it is fixed and mounted on the frame so as to be detachable and attachable by the slide.

[0006]

Embodiments of the present invention will now be described with reference to the drawings.
FIG. 1 is a side view of an example of the punch press of the present invention, FIG. 2 is an enlarged sectional view showing details of a mounting plate, and FIG. 3 is a block diagram of a drive control system of a hammer member of the punch press of the present invention. .

In the figure, reference numeral 1 is a frame having a substantially C-shaped side surface.
A frame 2 is a work table which is horizontally arranged on the inner surface of the opening 1a of the opening 1a of the frame 1. The table 2 has the same structure as that of the frame 1 described above. A work hand 3 that can move forward and backward with respect to the opening side of the opening 1a (hereinafter, this direction is referred to as the X-axis direction) is attached to the work table 2 via a motor, a feed screw mechanism (not shown), and the like. It is installed and installed. The work table 2 is mounted so as to be movable back and forth in the Y-axis direction with respect to the opening 1a of the frame 1 by a motor, a feed screw mechanism (not shown) and the like. 4 is the above frame
As shown in FIG. 3, it is a hammer member arranged on the front side upper portion 1c of the opening 1a in the frame 1 so as to be positionably fixed in the X and Y axis directions. The positioning of the hammer member 4 is to selectively correspond to a plurality of punch units described later.

FIG. 3 is a mechanism block diagram showing an example of a drive control system for the hammer member 4. In FIG. 3, 4a is a hydraulic cylinder, and 4b is its piston rod, the tip of which 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.

Reference numeral 4h is a mechanism for moving the X and Y axes 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 working 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.
By positioning the hand 3 in the X-axis and Y-axis directions, it is positioned between the punch unit 7 and the die unit 8 and the hammer member 4 is positioned with respect to the punch unit 7. Punching is basically the same as the conventional punch press.

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.

In FIG. 1, reference numeral 6 denotes a mounting plate according to the present invention in which a plurality of punch units and die units are mounted, and the work plate is provided at the opening 1a of the frame 1.
A base plate 5 provided opposite to and adjacent to the table 2.
Since it can be slid in the left-right direction in FIG. 1 and can be turned, the structure will be described below with reference to FIG.

In FIG. 2, the mounting plate 6 has a laterally long C-shape having a side cross-sectional shape opposite to that of the frame 1 and a right-side narrow opening 6a for entering a work. The formed plate body 61 and the unit mounting blocks 62 and 63 in which a plurality of punch units 7 and die units 8 are mounted on the opening end side (right side in the figure) of the body 61, respectively.
Is detachably attached, and the lower surface of the plate body 61 is formed as a slide surface 64 by a bottom plate or the like. It should be noted that it is optional whether the mounting plate 6 has the above-described assembly structure or an integral structure. Further, the assembling structure is not limited to the above example and may be another structure.

An elongated hole 64a and a round hole 64b are formed in the sliding surface 64 of the mounting plate body 61.
A clamp pawl 9 and a shaft 10, which will be described later, are inserted into a and 64b.

The clamp claw 9 and the shaft 10 are provided on the base plate 5
Cylinder 11 for lifting and lowering the clamp claw 9 which is fixedly positioned on the lower surface of the plate 5 through the round hole 5a and the long hole 5b provided in
And a piston rod of a shaft lifting cylinder 12 slidably provided on the lower surface of the plate 5, respectively. The cylinder 12 for raising and lowering the shaft 10 is mounted on the base plate 5
On the lower surface of the plate 6 is connected to a piston rod 13a of a slide cylinder 13 provided along the advancing / retreating direction of the plate 6 through a mounting member 12a, and is provided so as to be slidable with respect to the base plate 5. ing.

Here, the front and rear (right and left in the drawing) of the mounting plate 6 are positioned and fixed by the clamp claw 9 and the slide surface 64.
The engagement of the end portion 64e of the elongated hole 64a formed at the end and the engagement recess 63 formed at the front end of the mounting block 63 of the die unit 8.
a and an engaging leaf spring 14 provided so as to project toward the frame 1 in correspondence with the recess 63a, while the left and right positioning of the plate 6 is performed by the base plate 5. It is formed so as to be made by center pins (not shown in the figure) which are erected on the left and right sides.

Reference numeral 15 is for supplying compressed air between the upper surface of the base plate 5 and the lower surface of the slide plate 64. Therefore, a plurality of compressed air supplies are provided in the base plate 5 at appropriate intervals. Air nozzle for. In this manner, the punch press machine of the present invention is equipped with the mounting plate 6 for each of the punch and die units so as to be slidable and detachable with respect to the frame 1.

The sliding state of the mounting plate 6 (in the left-right direction in the drawing) is realized as follows.

First, the cylinder 11 for raising and lowering the clamp claw 9 is driven to raise the clamp claw 9, and the clamp for the end portion 64e of the elongated hole 64a is released, and the slide cylinder 1
When 3 is driven in the backward direction of the rod (left in the figure),
The slide surface 64 in which the shaft 10 is fitted in the round hole 64b, that is, the plate body 61 slides backward by the backward movement of the shaft 10 (moving to the left in the drawing). During this slide, the shaft 10 moves within the elongated hole 5b of the base plate 5.

After the above slide, the elevating cylinder 11 is driven to descend so that the clamp claws 9 are round holes 5a of the base plate 5.
When the shaft 10 is driven into the hole 5b on the left side of the elongated hole 5b of the base plate 5, the mounting plate 6 The sliding surface 64 is placed on the base plate 5 without any member that obstructs the sliding.

In the present invention, the mounting plate 6 in the above-mentioned free-sliding state is further slid by a robot or the like, or the upper surface of the base plate 5 is kept as it is without sliding. This point will be described below.

In FIG. 2, on the left side of the mounting plate 6 which is slid to the left side by the sliding cylinder 13 on the base plate 5, the left ends A and B of the plate 6 are moved upwards. Clamp blocks 16 and 17 that come in from both lower directions and clamp for clamping are attached to the output ends of the actuators by the upper and lower drive cylinders 18 and 19, and
The upper and lower cylinders 18 and 19 are attached to a support body 20 such as a pole which constitutes a robot body. This support 20 is
The mounting seat 21 is erected rotatably by a motor or the like.

Reference numeral 20a is a slide guide formed on the front surface of the support body 20 for guiding the vertical movement of the blocks 16 and 17.

The mounting plate 6 slid to the left side of FIG. 2 on the base plate 5 clamps the clamp blocks 16 and 17 that move forward from the upper and lower sides near the points A and B. Therefore, the support body 20 of the robot main body can be taken out from the base plate 5 and carried out to the outside of the frame 1 by rotating as it is or moving backward (leftward in the figure). it can. In FIG. 2, the mounting plate 6 which is to be swung in one direction to be removed is positioned on a stock pallet, table or the like (not shown), and the clamp blocks 16 and 17 are loosened to remove the mounting plate. Place the toe 6 on the table, etc., and continue to turn in the other direction,
The next mounting plate 6 is gripped by the clamp blocks 16 and 17, and the new mounting plate 6 is operated so as to be positioned on the base plate 5.

When the mounting plate 6 mounted on the frame 1 is detached from the frame 1, another robot equipped with another die (units of punch and die) is mounted by the robot. The mounting plate 6 is placed on the base plate 5 for loading. This carrying-in position is the position where the previously removed mounting plate 6 has slid to the left, and is indicated by a chain line in FIG.

At the time of this positioning, compressed air is supplied from the air nozzle 15 and blows between the upper surface of the base plate 5 and the slide surface 64 of the new mounting plate 6, and the opposing surfaces of these 5, 64 are blown. Remove adhering dust.

Next, the shaft 10 is raised by the lifting cylinder 12 to be fitted into the hole 64b of the slide surface 64, and
The clamp claw 9 is raised by the lifting cylinder 11 to penetrate the elongated hole 64 of the slide plate 64, and the mounting plate
The tray 6 is slidable on the base plate 5. During this time, the compressed air is continuously supplied from each air nozzle 15, and the compressed air is continuously supplied until the next slide operation is completed. The supply of compressed air has the effect of reducing friction on the slide surface.

In the above state, the sliding cylinder
Drive 13 to the advancing side and slide this mounting plate 6 to the right. This slide fits into the engaging recess 63a formed at the tip of the mounting block 63 of the die unit 8 with the clamp leaf spring 1
This is done until 4 is fitted. At this point, clamp claw 9
When the cylinder 11 descends, the compression edge portion 64e in the elongated hole 64a of the slide surface 64 is clamped, and the positioning and fixing of the mounting plate 6 is completed. In addition, the left and right positioning in the sliding direction of the sliding mounting plate 6 is
As described above, the center pin is not shown in the figure.

[0029]

As described above, the mounting plate 6 in which the punch and die units of the punch press of the present invention are mounted can be easily removed from the frame 1 of the press and mounted. Since it has a structure that allows the mounting plate 6 to have two or more mounting plates 6 mounted with different molds, even if the number of molds mounted on one mounting plate 6 is smaller than that of the turret punch press machine. By preparing them, there is an effect that by exchanging the mounting plates 6 themselves, a wide variety of punch press processing can be performed, which is more than the processing by the turret punch press machine. Further, the mounting plate 6 can be replaced without replacing the individual molds, which require a lot of labor for replacement.
Since each mold can be replaced by one operation, compared with the setup means for individually replacing the molds on the mounting plate 6, it is possible to perform much more labor-saving processing in the same manner as the mold replacement. Further, by automatically exchanging the entire mounting plate 6 by a robot or the like, unmanned continuous automatic operation can be realized, which is an operation state that cannot be realized by a conventional punch press machine of this kind. You can

In the punch press of the present invention, the hammer member uses a hydraulic cylinder as a drive source, and this hydraulic cylinder mainly has a servo control valve, a servo control unit, a stroke sensor and the like as a control system. Since it is servo-controlled and driven by, the acceleration and deceleration of the stroke motion,
It can be freely controlled by drive control including a drive command of zero acceleration, and therefore the punch descending speed can be delicately controlled according to the hardness and thickness of the work material, so high-speed machining with low noise can be performed. Can be realized.

[Brief description of drawings]

FIG. 1 is a side view of an example of a punch press machine of the present invention.

FIG. 2 is an enlarged side sectional view showing a structure of a main part of the punch press of the present invention.

FIG. 3 is a block diagram showing a drive control system of a hammer member of 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 Punch unit 8 die unit 9 clamp claws 10 axes 11, 12 Lifting cylinder 13 Slide cylinder 14 Clamp leaf spring 15 air nozzle 16, 17 Clamp block 18, 19 drive cylinder 20 Robot body

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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 6

[Correction method] Change

[Correction content]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

FIG. 3 is a mechanism block diagram showing an example of a drive control system for the hammer member 4. In FIG. 3, 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] 0011

[Correction method] Change

[Correction content]

Here, in the hammer member 4 of the present invention, a hydraulic cylinder 4a is used as a drive source, and the hydraulic cylinder 4a is servo-controlled by a control system mainly including a servo control valve 4e, a servo control unit 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

[Name of item to be corrected] 0030

[Correction method] Change

[Correction content]

In the punch press of the present invention, the hammer member is driven by a hydraulic cylinder, and the hydraulic cylinder is servo-controlled by a control system mainly including a servo control valve, a servo control unit, a stroke sensor and the like. because driven, in particular, the stroke movement pressurized, the deceleration,
Can be carried out freely arbitrary, therefore, it is possible to finely control the lowering speed of the punch in accordance with the hardness and thickness of the workpiece, it is possible to realize a small high-speed processing of noise.

Claims (6)

[Claims] 1. An opening side of a frame having a substantially C-shaped side surface,
With multiple punch and die units installed,
An attachment plate formed so that a work piece can be inserted into and removed from the inside of the frame between each punch unit and a die unit that are mounted is slidably fixed to the frame, A punch press machine equipped with a plate for mounting a punch and die unit suitable for automatic exchange, characterized in that it is mounted on the frame so that it can be detached and mounted by the slide. 2. A punch suitable for automatic exchange according to claim 1, wherein when the mounting plate slides, compressed gas is supplied to the mounting contact surfaces of the mounting plate and the frame. Punch press machine equipped with a mounting plate for the die and die unit. 3. A punch press machine comprising two or more sets of mounting plates, one set of the mounting plates being mounted on a punch press machine, and the remaining mounting plates being the punch presses. Claim 1 or 2 which is stocked at a predetermined position outside the machine
Punch press machine equipped with a plate for mounting the punch and die unit, which is suitable for automatic replacement. 4. Each mounting plate has punches of different contents,
A punch press machine equipped with a punch and a die unit mounting plate suitable for automatic exchange according to claim 3, wherein a die unit is mounted. 5. The mounting plate mounted on the frame comprises:
A small distance can be slid on the frame by a slide actuator provided near the slide surface, and the mounting plate after the sliding can be supported by a robot adjacent to the frame. A punch press machine equipped with a plate for mounting a punch and die unit suitable for automatic exchange according to any one of claims 1 to 4, wherein the punch press machine is detached from the frame. 6. 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.
A punch press machine equipped with a plate for mounting a punch and a die unit suitable for any one of the automatic exchanging processes described in 1 to 5.