KR930008591Y1 - 3 phase bending dies - Google Patents

Abstract

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Description

3-sided bending cam mold

Figure 1a or a state diagram of a two-sided bending product, (b) is a front and side cross-sectional view of a conventional two-sided bending mold.

2 is a perspective view of a product banded by the present invention.

3 is a plan view of a three-sided bending cam mold according to the present invention.

4A and 4B are cross-sectional views showing the state of operation of the cross section along the line A-A of FIG.

5A and 5B are cross-sectional views of an operating state of the cross-section B-B of FIG. 3, and (c) of one side banding on both side bands.

* Explanation of symbols for main parts of the drawings

100: lower type 101: die

102: pad 103, 103 ': cam driver

103a: sloped surface 103b: slide surface

200: Pictograph 201: Punch holder

202: fixed block 203: fixed punch

204: guide jaw guide plate 205: movable punch

205a: sloped surface 205b: slide surface

205c: guide jaw 207: spring hole

208: Compression coil spring 209: Tightening bolt

The present invention relates to a bending mold, and more particularly to a three-sided bending cam mold structure to provide a structure suitable for bending the three sides of the product in one cycle operation of the mold.

In the conventional bending mold, as shown in FIG. 1B, a die 7 is provided on the lower mold 6, and movable punches 3 and 3 'are provided on the bottom surface of the upper mold 1 to enable the opening and retracting. A stop block (2) was installed to maintain the interval of installation of the movable punch, and a fixed block (5) was installed outside the movable punch (3, 3 ') to install a coil spring (4) therebetween. One configuration was achieved, and a banding process was performed by installing cam-driers 8 for opening the movable punches 3 and 3 'to the left and right sides around the lower die 6.

The bending of the material by the conventional bending mold is performed when the material W is supplied to the upper surface of the die 7 of the lower die, and the movable punches 3 and 3 'are moved by the cam driver 8 while the upper die 1 is lowered. When pressing the upper surface of the workpiece W while being pushed in both directions due to contact with the die, both sides of the workpiece W positioned between them by the contact of the die 7 and the movable punches 3 and 3 ' It was bent vertically, and then the bent product was taken out when the upper mold 1 was raised.

In the conventional bending process, since only two side surfaces of the material W such as the first a degree are bent, in the case where the three surfaces of the material are bent as in the second degree, one side is bent by post-processing to form a three-sided bent product.

Therefore, the three-sided bending process is very cumbersome, the productivity is lowered, and because a separate bending device to achieve post-processing has to be installed, there was a problem such as having a great effect on the cost increase of the product and giving an economic burden.

In order to solve the above problems, the present invention is to provide a bending device having a bending structure that simultaneously forms three surfaces of bending in a bending mold, and improves the productivity of the product by the simultaneous bending of three surfaces, Production cost is also reduced, as well as to improve the bending technology of the mold, which will be described in detail with the accompanying drawings as follows.

Die piece consisting of an upper mold 200 and a lower mold 100, the upper mold 200 to form a punch member to move vertically with respect to the surface of the material, the lower mold 100 can be placed on the material (W) ( 101) and the lower mold 100 in forming a bending mold configured to be raised and lowered vertically with respect to the upper surface of the lower mold by installing the pad 102 as a member that lowers upon contact with the punch member and absorbs the impact of the punch member. A cam driver having a die 101 capable of placing the material W on a plane thereof in a rectangular frame shape, and having an inclined surface 103a at an upper corner on both sides of the die 101 of the rectangular frame shape. (101) 103 'are installed perpendicular to the upper surface of the die 101, and the die 101 having a rectangular frame shape while forming a space in the center thereof has no cam drivers 103, 103' installed on the surface thereof. Form one side to be stepped (d) like the 5a diagram The die 101 is formed in a cam shape, and a pad 102 is installed in the center space of the die to absorb the impact by elastically falling along with the elastic contact of the movable punch when bending the material.

Cam drivers 103 and 103 'installed vertically with respect to the upper surface of the die 101 are installed at positions which do not make any contact with the material W to make contact with the movable punch to be described later.

On the bottom of the upper die 200 located on the upper die 200, the movable punch 206 is installed toward the pad 102 of the lower die, but is formed to a predetermined thickness to form a guide jaw guide plate 204 at both ends. The fixing block 202 is fixed to the outer wall surface of the punch fixing stand 201 of the 200.

A fixed punch 203 is installed between the punch holder 201 and the fixed block 202 to fix the fixed punch 203 with a conventional fastening element inserted from an outer surface of the fixed block 202, and the fixed punch (203) A movable punch 205 is provided between the front surface and the punch holder 201 to move only horizontally.

The movable punch 206 is formed by protruding the guide jaw (206a) to the thickness of the height of the guide jaw guide jaw 201a of the punch fixture 201 on both sides of the upper side, the height is different under the guide jaw (206a) A movable punch 205 having an inclined surface 205a formed to be inclined in the same direction and a slide surface 205b connected to the inclined surface in order to contact the inclined surfaces 103a of the formed cam drivers 103 and 103 '. Form.

The fixed punch 203 and the movable punch 205 installed in the upper punch holder have a size smaller than that of the pad by the thickness of the cam driver before the operation, and have the same variable size as the pad by the thickness of the cam driver during the operation. Have it.

The guide jaw guide plate 204 is fixed to the guide guide jaw 201a of the punch fixing stand 201 to provide variability.

As the guide jaw guide plate 204 is fixed, the guide jaw guide plate 204 of the cam guide jaw 206a is placed in a state where the movable punch 206 is horizontally slid between the punch holder and the guide jaw guide plate. It is possible.

When the movable punch 206 is connected to the cam drivers 103 and 103 ', it moves horizontally, and when it is out of the cam driver, the fastening bolt 209 into which the compression coil spring 208 is inserted is returned to its original position. Is inserted into the spring hole 207 of the movable punch 206 and the threaded portion of the tip of the fastening bolt 209 is fastened to the fixed punch 203.

The present invention having such a configuration is that if the upper surface of the flat material (W) is placed on the die 101, the three surfaces to be bent will be placed on the die 101, and the surfaces that will not be bent will be placed on the pad 102.

When the upper die 200 is operated in this state, the inclined plane 205a of the movable punch 205 is brought into contact with the inclined plane 103a of the cam drivers 103 and 103 'which are fixed while the upper die descends, and then the cam driver ( 103 and 103 'are guided to the vertical slide side 20b following the inclined surface 205a. When descending to this state, the movable punch 206 is moved horizontally by the thickness of the cam drivers 103, 103 'from the punch fixing stand 201 by the inclination of the inclined surface in contact, and the inclined surfaces 205a, ( Further horizontal movement is stopped by the vertical slide sides 205b and 103b connected to 103a).

As the movable punch 205 is horizontally moved as described above, the descending of the upper die is continuously made so that the variable sizes of the fixed punch 203 and the movable punch 205 become the same size as the area of the pad 102. When pressing the pad 102, both sides of the material W are bent by the movable punch 205 and the fixed punch 203, respectively, as shown in FIG. 4C. Then, on one side of the die, a step formed in the pad and the die 1 At the interval of), the movable punch side and the fixed punch side are bent in the state of FIG. 5C, and eventually, the three sides are bent at one time.

Then, when the upper die 200 is raised, the movable punch 206 is moved to the initial position by the compression coil spring 208 at the moment of leaving the cam drivers 103 and 103 'and separated from the bent surface of the material. The material can be taken out freely from the lower mold.

As described above, the present invention not only increases productivity due to shortening the processing time of materials because three surfaces are simultaneously bent in one mold, but also has a mold structure that allows three surfaces to be bent as one mold structure. This is because it is to be improved, as well as the cost savings of the mold production costs and the advantages that can facilitate the bending work.

Claims (1)

It consists of upper and lower molds 200 and 100, and in forming a bending mold having a punch 203 in the upper mold and a die 101 and a pad 102 in the lower mold, the lower mold on which the material W is placed ( Cam driver 103 having one side of die 101 of step 100 formed in a stepped (d) frame shape and having an inclined surface 103a and a slide surface 103b on the upper surfaces of both side dies 101 at different positions, A movable punch 205 having an inclined surface 205a and a slide surface 205b is provided between the guide jaw guide plates 204 for vertically installing the 103 'and fixing it to the punch holder 201 of the upper die 200. The fastening bolt 209 is installed and the compression coil spring 208 is fastened to the fixed punch 203 through the spring hole 207 of the movable punch 205, so that the movable punch 206 is a cam driver 103 (103 '). Three-sided bending cam mold, characterized in that configured to move horizontal elastic force by).