JPH0750116Y2 - Work attachment device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work mounting apparatus for mounting a work (workpiece) in a wire cut electric discharge machine and performing electric discharge machining.

[0002]

2. Description of the Related Art Conventionally, a work mounting device of this type is constructed as shown in FIG.

That is, in FIG. 5, a plurality of supporting tables b are mounted on a flat substrate a so as to surround them in a U shape, and a plurality of mounting holes b1 are formed on the upper surface of each supporting table b. Are pierced in a row. or,
A holding plate c is fixed to the support table b by attaching bolts d through the elongated holes c1 and the attaching holes b1, and the V-groove portion e is formed at the inner end of the holding plate c. Are formed. Further, a pair of guide rods f are horizontally and parallelly planted on the inner end portion of the holding plate c, and a connecting member g is attached to the end portions of both guide rods f. Further, a movable support member h is slidably fitted to both of the guide rods f inside the connecting member g, and the movable support member h is screwed to the connecting member g. The work W is tightened and fixed by i.

Therefore, in the work mounting device, when gripping the work W, the work W is brought into contact with the V groove portion e, and thereafter, the tightening screw rod i is screwed to move the work supporting member h by the movable support member h. A part of the work W is pressed, and the work W is clamped and fixed by the V groove portion e and the movable support member h.

As described above, the work attachment device is
The work W is clamped and fixed, and the wire cut electric discharge machine j
The work W is electric discharge machined by the wire electrode k in FIG.

[0006]

However, in the work mounting device described above, since the work W is clamped and fixed by the V groove portion e and the movable support member h, the size of the work W is the above. The width of the V groove portion e and the pair of guide rods f limits the size of the workpiece W, which makes it difficult to perform electrical discharge machining with the wire electrode k, and the operation of moving the wire electrode j to the workpiece W becomes troublesome. There are problems such as spending a lot of time.

In order to solve the above-mentioned problems, the present invention simplifies the positioning of the work on the machined surface and shortens the mounting time without the size of the work being limited by the width of the pair of guide rods. An object of the present invention is to provide a work attaching device which is intended to improve the work efficiency of a work by electric discharge machining.

[0008]

According to the present invention, a first reference plane corresponding to the X direction and a second reference plane corresponding to the Y direction are formed on each of the orthogonal side frames of a frame-shaped main body. Each holding member having a third reference surface corresponding to the Z direction is detachably provided below the reference surface, and each long hole is formed in the longitudinal direction in each of the other side frames facing each other. The movable adjusting member is provided in each of the elongated holes so as to be fixed by each mounting member, and the operation adjusting rod for fixing the work is screwed to the movable adjusting member.

[0009]

According to the present invention, when a work is gripped, the work is previously brought into contact with the first reference surface corresponding to the X direction and the second reference surface corresponding to the Y direction, and the third reference surface corresponding to the Z direction. Place the work on it, and then fix the movable adjustment member to each long hole of each other side frame with each mounting member, and tighten the operation screw of this movable adjustment member to tighten and fix the work. , This work simplifies the positioning of the wire electrode on the machining surface, shortens the mounting time, and improves the machining efficiency of electric discharge machining.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below. 1 to 3, reference numeral 1 denotes a frame-shaped main body, and the side frames 1a, 1a of the main body 1 which are orthogonal to each other.
On b, a first reference plane 2 corresponding to the X direction and a second reference plane 3 corresponding to the Y direction are formed in the horizontal direction, and the side frames 1a, 1b immediately below the reference planes 2, 3 are formed. Each holding member 5 on which a third reference surface 4 corresponding to the Z direction (vertical direction) is formed is detachably provided. Also, each side frame 1
In the other side frames 1c and 1d facing each other with respect to a and 1b, elongated holes 6 and 7 are formed in the longitudinal direction of the side frames 1c and 1d. Each stop nut 8 such as, for example, a slot nut is fitted in the. Furthermore, the side frames 1c and 1d in which the long holes 6 and 7 are located, respectively.
A movable adjusting member 9 having a quadrangular cross section is mounted on the movable adjusting member 9, and each elongated hole 9a,
9b is bored in the longitudinal direction. Furthermore, each mounting member 10 such as a headed bolt penetrates through each of the elongated holes 9a and 9b and is screwed to each of the lock nuts 8. The movable adjusting member 9 includes each of the mounting members. It is provided so as to be fixed at 10. Further, an operation screw 11 is screwed in the middle of the movable adjusting member 9 so as to fix the work W, and the operation screw 11 rotates this and is screwed inward to move the work. The work W is pressed by the inner end portion 11 a of the operation screw rod 11.

The operation of the present invention will be described below. Therefore, when gripping the workpiece W, the workpiece is previously contacted with the first reference surface 2 corresponding to the X direction and the second reference surface 3 corresponding to the Y direction, and the third reference surface 4 corresponding to the Z direction is previously contacted. The work W is placed and the work W is held horizontally. Then, the movable adjusting member 9 is fixed to each of the elongated holes 6 and 7 of each of the other side frames 1c and 1d by each mounting member 10.

Next, the operating screw 11 of the movable adjusting member 9
Is screwed inward, and the work W is clamped and fixed by three-point support by the first reference surface 2, the second reference surface 3 and the operation screw rod 11.

Next, as shown in FIG. 5, the above-mentioned respective works W are attached to the wire electrode j in the wire cut electric discharge machine i.
Electrical discharge machining with.

As described above, according to the present invention, the size of the work W is not limited by the width of the pair of guide rods, the work W is simply positioned on the work surface of the wire electrode, and the mounting time is shortened. It is possible to improve the machining efficiency of electric discharge machining.

Next, in another embodiment of the present invention shown in FIG. 4, two sets of work attaching devices of the present invention are connected in series to perform electric discharge machining of two works W of the same size and the like in one step. The configuration is the same as that of the above-described specific example. Although the work W of the present invention has been described as a cylindrical work, it is needless to say that it may be a polygonal work.

[0016]

As described above, according to the present invention, the first reference plane corresponding to the X direction and the second reference plane corresponding to the Y direction are formed on each of the side frames of the frame-shaped main body which are orthogonal to each other. Each holding member having a third reference surface corresponding to the Z direction is detachably provided immediately below both reference surfaces, and each long hole is formed in each of the other side frames facing each other in the longitudinal direction. The movable adjusting member is provided in each elongated hole so as to be fixed by each mounting member.
Since the operating rod for fixing the work is screwed on this movable adjusting member, not only the positioning of the relatively large work on the machining surface of the wire electrode can be simplified and the mounting time can be shortened, but also the machining by electric discharge machining. It has an excellent effect that efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a work attachment device of the present invention.

FIG. 2 is a plan view of the same.

3 is a sectional view taken along the chain line AA in FIG.

FIG. 4 is a perspective view showing another embodiment of the present invention.

FIG. 5 is a perspective view showing a conventional work attachment device.

[Explanation of symbols]

 1 Main Body 2 1st Reference Surface 3 2nd Reference Surface 4 3rd Reference Surface 5 Holding Member 6, 7 Long Hole 9 Movable Adjusting Member 10 Mounting Member 11 Operation Screw Rod

Claims (1)

[Scope of utility model registration request] 1. A first reference plane corresponding to the X direction and a second reference plane corresponding to the Y direction, which are formed on each side frame orthogonal to each other in a frame-shaped main body, and are detachably attached under the both reference planes. Each holding member which is provided on the second side frame and which forms a third reference surface corresponding to the Z direction, and each long hole formed in each of the other side frames facing each other in the longitudinal direction. A work attaching device comprising: a movable adjusting member provided in each elongated hole so as to be fixed by each attaching member; and an operation screw rod screwed to the movable adjusting member and fixing a work together.