JPH11239822A - Device for attaching and detaching object in sheet metal machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for attaching and detaching an object in a sheet metal machine which is attachable to any place of the sheet metal machine by making the device compact and whose universal applicability is improved by making any object attachable and detachable. SOLUTION: This device is provided with a main body 50 which is attachable to the sheet metal machine, clamping mechanism 60 which is incorporated in the main body 50 and with which the object is attached to the sheet metal machine by pressing the object clamped between the sheet metal machine and the main body 50 and unclamping mechanism 70 which is incorporated in the main body 50 and with which the object is separated from the sheet metal machine by releasing the object clamped between the sheet metal machine and the main body 50.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an object attaching / detaching device for a sheet metal machine, particularly to a compact body by incorporating a clamp / unclamp mechanism in a main body. The present invention relates to an object attaching / detaching device in a sheet metal machine in which any object such as a work as well as a mold can be attached to and detached from the sheet metal machine.

[0002]

2. Description of the Related Art Conventionally, as an object attaching / detaching device in a sheet metal machine, there is, for example, a die clamping device shown in FIG. 4 (Japanese Utility Model Publication No. 63-21933).

[0003] As shown in the figure, this mold clamping device has a clamping plate 15, which is an upper table 7 of a sheet metal machine (for example, a press brake) (Fig. 4B).
Is attached to the intermediate plate 3 fixed with bolts 9 by bolts 17,
The punch 5 is sandwiched between the lower portions 13 of the intermediate plate 3.

[0004] A holding plate 19 is attached to the front surface of the fastening plate 15 via a bolt 21.
The nut 25 is tightened with the spring 23 interposed therebetween, so that the holding plate 19 is
5 is in contact with the lower part 29.

In the intermediate plate 3, the bolt 21
Between them (FIG. 4 (A)), a hollow portion 31 is formed, and a lever 33 is provided in the hollow portion 31.
It has a fulcrum projection 35, a horizontal roller 37, and a plunger 43.

With this configuration, when the fluid is discharged from the cylinder 39 via the conduit 45, the pressure in the cylinder 39 becomes negative, and the piston 41 moves to the right in FIG. 4C.

For this reason, the action of the spring 23 causes the fastening plate 1
5 presses the punch 5 together with the presser plate 19, and the punch 5
Is attached to the press brake.

The fluid is supplied to the cylinder 3 through the conduit 45.
9, the pressure in the cylinder 39 becomes positive, and the piston 41 moves to the left in FIG.

As a result, the lever 33 also moves to the left with the projection 35 as a fulcrum, so that the clamping plate 15 moves to the left together with the presser plate 19 to release the punch 5 against the elastic force of the spring 23. The punch 5 is released from the press brake.

[0010]

However, the prior art shown in FIG. 4 has the following problems. (1) The number of parts is large. As shown in the figure, in the prior art, first, the intermediate plate 1 is required to attach the clamping plate 15 as a main body, and the unclamping mechanism includes a lever 33, a plunger 43, a projection 35, and a horizontal roller. 37 is required,
Further, it is necessary to provide a cavity 31 for accommodating the lever 33.

Further, in order to clamp the punch 5 as an object more effectively, it is necessary to devise a configuration such as disposing the lower portion 26 of the main body 15 in a comb shape (FIG. 4A). .

As described above, conventionally, the number of parts is extremely large.

(2) Extra mounting space is required.

Conventionally, a spring 23 and a bolt 25 as means for clamping an object are provided outside the clamping plate 15 as a main body, as shown in FIG. 4B.

Further, the cylinder 39, the piston 41 and the lever 33 which are means for unclamping the object are also shown in FIG.
As shown in (C), similarly, it is provided outside the fastening plate 15 which is the main body.

Therefore, conventionally, an extra mounting space is required.

That is, conventionally, as described in (1) and (2), the number of parts is large, and an extra mounting space is required. In addition, there is a problem that only a specific object such as the punch 5 can be attached / detached and lacks versatility.

The object of the present invention is to make it possible to attach it to any part of a sheet metal machine by making it compact,
In addition, an object attaching / detaching device for a sheet metal machine with improved versatility by making any object attachable / detachable is provided.

[0019]

According to the present invention, as shown in FIGS. 1 to 3, (1) a main body 50 attachable to a sheet metal machine, and (2) a built-in main body. Then, by pressing an object sandwiched between the sheet metal machine and the main body 50, the clamp mechanism 60, (3) for mounting the object to the sheet metal machine and the main body 50 are incorporated. A technical means called an object attaching / detaching device in a sheet metal machine is provided, which has an unclamping mechanism 70 for releasing the object sandwiched between the metal plates to release the object from the sheet metal machine.

Therefore, according to the structure of the present invention, for example, the clamp mechanism 60 is constituted by the retaining ring 63 and the compression spring 61 (FIG. 1).
(A) and FIG. 1 (B)), and an unclamping mechanism 70 is constituted by a hydraulic chamber 71 and a piston 72 (FIGS. 1 (A) and 1 (C)). The body 60 and the unclamping mechanism 70 are both built in the main body 50, and the main body 50 can be attached to a sheet metal machine by bolts 62 via a retaining ring 63 and a compression spring 61.

Therefore, the number of parts is smaller than in the prior art,
No extra mounting space is required, the whole is made compact, and the screw holes 81A (FIG. 1 (B)) and 100A (FIG. 3)
(B)), as long as it is available, it can be attached to any part of the sheet metal machine, and not only the mold (FIG. 1 (B), FIG. 1 (C),
Any object such as the workpiece W (FIG. 3) and the workpiece W (FIG. 3) can be detached.

As a result, an object attaching / detaching device in a sheet metal machine with improved versatility is provided as follows.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings according to embodiments. FIG. 1 shows the first embodiment of the present invention.
It is a figure showing an embodiment, reference numeral 50 is a main part, 60 is a clamp mechanism, 70 is an unclamping mechanism.

The main body 50 is viewed from the front (FIG. 1).
(A)), which is rectangular and has a substantially rectangular parallelepiped shape as a whole, and as described later, the clamp mechanism 60 includes a bolt 62
The unclamping mechanism 7 is formed by the
Reference numeral 0 denotes a hydraulic chamber 71 and a piston 72 (FIG. 1C).

The main body 50 includes, for example, two bolts 62
It is attached to the punch holder 81 via (FIG. 1A).

The bolt 62 penetrates through the hollow portion 50C of the main body 50 through the retaining ring 63 and the compression spring 61, and is screwed into the screw hole 81A of the punch holder 81. Are inserted into the groove 81B of the punch holder 81 and are in contact therewith, and the first contact portion 50A is in contact with the punch bracket 82.

The hollow portion 50C of the main body 50 is
The compression spring 61 is housed in the cavity 50C.

As shown, a collar 64 is provided between the compression spring 61 and the bolt 62, and the main body 50 does not protrude to the right due to the action of a piston 72 constituting an unclamping mechanism 70 described later. So that the stroke is limited.

In the center of the main body 50 (FIG. 1A), a hollow portion 50E is formed.
As shown in FIG.
2 is provided with an O-ring 73 for preventing oil leakage.

The cavity 50E in which the piston 72 is housed communicates with a hydraulic chamber 71, and when oil is supplied to the oil feed pipe 3, the piston 72 moves to the left in FIG. , The body 50 moves to the right (FIG. 1).
As shown in the arrow b) of (C), the punch bracket 82 is unclamped as described later.

The punch holder 81 is, as shown in FIG.
The die changing device 90 is attached to a die changing device 90 via an arm 80 so as to be vertically movable. The die changing device 90 is mounted on a press brake 95 which is a kind of sheet metal machine.

A guide 81C is formed below the punch holder 81, and a punch bracket 82 is fitted along the guide 81C.
, A punch 83 as an object is screw-fixed.

The punch 83 as an object is mounted on the punch holder 81 by the object attaching / detaching device in the sheet metal machine according to the present invention, and the upper table 9 of the press brake 95 is mounted.
The mold exchanging device 90 attached to 1 is operated.

As a result, the punch 83 as an auxiliary mold is
Descends as shown by arrow c, and into its V-groove 83A,
By inserting a punch 92 which is a standard mold, the auxiliary mold 83 is mounted on the standard mold 92, and the work W is bent in cooperation with the die 94.

FIG. 3 is a view showing a second embodiment of the present invention. The object of the first embodiment (FIGS. 1 and 2) is a mold 83.
However, the difference is that the object of the second embodiment is the workpiece W.

That is, for example, a screw hole 100A is formed in a processing table 100 of a laser processing machine or a punching machine, and a bolt 62 is screwed into the screw hole 100A.
Main body 5 of object attaching / detaching device in sheet metal machine according to the present invention
0 is attached to the processing table 100.

At this time, the first contact portion 50A of the main body 50 is in contact with the work W, and the second contact portion 50B is in contact with the groove 100B of the processing table 102.

The structures of the main body 50 and the clamp mechanism 60 and the unclamping mechanism 70 built in the main body 50 are the same as those of the first embodiment (FIG. 1), and the description thereof will be omitted.

Hereinafter, the operation of the present invention having the above configuration will be described.

(1) Operation when the punch 83 is mounted / removed (FIGS. 1 and 2). First, a punch bracket 82 (FIG. 1) to which a predetermined punch 83 is screwed is fixed to a guide 81C of the punch holder 81.
In advance.

In this state, the first contact portion 50A of the main body 50
And the second contact portion 50B is inserted into the groove 81B of the punch holder 81 to make contact with the punch bracket 82, and the compression spring 6 housed in the hollow portion 50C of the main body 50 is contacted.
From above, the bolt 62 is screwed into the screw hole 81A of the punch holder 81 via the retaining ring 63.

As a result, the compression spring 61 is pressed to the left in FIG. 1B by the retaining ring 63, and the compression spring 61 presses the stopper 50D to the left.
Is also pressed to the left (arrow a in FIG. 1B).

Accordingly, the punch bracket 82 sandwiched between the main body 50 and the punch holder 81 is mounted on the punch holder 81.

In this state, the press brake 9 shown in FIG.
Mold changing device 9 attached to upper table 91 of 5
0, the punch 83, which is the auxiliary mold, descends as shown by the arrow c, and the V-groove 8
By inserting a punch 92 as a standard mold into 3A, the auxiliary mold 83 is mounted on the standard mold 92, and the work W is bent in cooperation with the die 94.

Next, when oil is supplied to the hydraulic chamber 71, the piston 72 moves to the left in FIG. 1C due to the hydraulic pressure, so that the main body 50 moves to the right against the elastic force of the compression spring 61. (Arrow b in FIG. 1C), the stopper 50D hits the collar 64 (FIG. 1B) and stops.

Thus, the first contact portion 50A of the main body 50
Is separated from the punch bracket 82 and the second contact portion 50B is separated from the groove 81B of the punch holder 81, so that the punch bracket 82 is released from the punch holder 81, and the punch bracket 82 is pulled out and separated along the guide 81C. (Arrow g in FIG. 1A).

(2) Function when loading / unloading work W (FIG. 3)

First, after positioning the work W (FIG. 3) at a predetermined position on the processing table 100, the first contact portion 50A of the main body 50 is brought into contact with the work W (FIG. 3).
(B)), the second contact portion 50B is inserted into the groove 100B of the processing table 100 to make contact therewith, and the hollow portion 50C of the main body 50 is contacted.
The bolt 62 is screwed from above the compression spring 61 stored in
Screw.

As a result, the compression spring 61 is pressed downward by the retaining ring 63 in FIG. 3B, and the compression spring 61 presses the stopper 50D downward.
Is also pressed downward (arrow d in FIG. 1B).

Therefore, the main body 50 and the processing table 100
The work W sandwiched therebetween is mounted on the processing table 100.

In this state, predetermined work is performed on the work W by irradiating the work W with laser from a processing head of a laser processing machine or by pressing a punch of a punch processing machine.

Next, when oil is supplied to the hydraulic chamber 71, the piston 72 moves downward in FIG. 3C by the hydraulic pressure, so that the main body 50 moves upward against the elastic force of the compression spring 61. (Arrow e in FIG. 3C), the stopper 50D hits the collar 64 (FIG. 3B) and stops.

Thus, the first contact portion 50A of the main body 50
Is the workpiece W, and the second contact portion 50B is the processing table 10.
Since the work W is separated from the groove 100A, the work W is released from the processing table 100, and the work W can be pulled out and separated (arrow f in FIG. 1A).

In the above embodiment, the case where the object is the punch 83 as the auxiliary mold shown in FIGS. 1 and 2 and the work W shown in FIG. 3 has been described in detail, but the present invention is not limited to this. Instead, for example, the present invention can be applied to the case where the main body 50 is attached to the intermediate plate 1 shown in FIG.

That is, according to the present invention, the clamp mechanism and the unclamping mechanism are built in the main body, thereby achieving compactness, being attachable to any part of the sheet metal machine, and making any object removable. It has improved versatility.

[0056]

As described above, according to the present invention, an object attaching / detaching device in a sheet metal machine is built in a main body attachable to the sheet metal machine, and presses an object sandwiched between the sheet metal machine and the main body. A clamping mechanism for mounting the object on the sheet metal machine, and an unclamping mechanism for detaching the object from the sheet metal machine by releasing the object embedded in the main body and held between the sheet metal machine and the main body. By having a mechanism, the number of parts is smaller than before, no extra mounting space is required, the whole is made compact, and if there is a screw hole, it can be installed at any point of the sheet metal machine, Also, any object such as a work as well as a mold can be attached and detached.

As a result, the technical effect of providing an object attaching / detaching device in a sheet metal machine with improved versatility has been achieved.

[0058]

[Brief description of the drawings]

FIG. 1 is a diagram showing a first embodiment of the present invention.

FIG. 2 is an overall view of FIG.

FIG. 3 is a diagram showing a second embodiment of the present invention.

FIG. 4 is a diagram illustrating a conventional technique.

[Explanation of symbols]

 50 body 50A first contact portion 50B second contact portion 50C cavity 50D stopper 50E cavity 60 clamp mechanism 61 compression spring 62 bolt 63 retaining ring 64 collar 70 unclamping mechanism 71 hydraulic chamber 72 piston 73 O-ring

Claims (3)

[Claims] 1. A main body that can be attached to a sheet metal machine, a clamp mechanism that is built into the main body, and that mounts the object on the sheet metal machine by pressing an object sandwiched between the sheet metal machine and the main body, and a main body. An object mounting and dismounting device for a sheet metal machine, comprising: an unclamping mechanism that is incorporated in the sheet metal machine and releases the object held between the sheet metal machine and the main body to release the object from the sheet metal machine. 2. The apparatus according to claim 1, wherein the main body includes a retaining ring and a compression spring.
2. The object attaching / detaching apparatus in a sheet metal machine according to claim 1, wherein the object is attached to the sheet metal machine by bolts, and a clamp mechanism is constituted by the retaining ring and a compression spring. 3. The apparatus according to claim 1, wherein the unclamping mechanism comprises a hydraulic chamber and a piston.