KR100716925B1 - Device for fixing workpiece in shot-blast apparatus - Google Patents

Abstract

The present invention relates to a material fixing device for fixing at least one material having a groove between the rotating plate and the upper plate and having an upper plate fixed by a shaft of a predetermined length on the rotating plate, wherein idle rotation on the rotating plate is performed. It is installed to be possible, the lower plate is fixed to the bottom of the material, the upper plate is installed in the bottom portion of the bottom plate to be rotated by a predetermined driving means, the fixing plate and the fixing plate is fixed between the top of the material and the fixed plate and the lower plate, At least one guide means that can be inserted into the grooves of the rod may include a connecting rod of a predetermined length, which is mounted at regular intervals, thereby inducing even collision of the material surface during the shot blasting process, and the deformation of the material by the guide means. Can be prevented in advance, contributing to improved product reliability.

Hot Forming, Shot Blasting, Fixing Plate, Swivel Plate, Guide Means

Description

Material fixing device of shot blasting device {DEVICE FOR FIXING WORKPIECE IN SHOT-BLAST APPARATUS}

1 is a block diagram of a general hot press forming apparatus;

2 is a schematic view of a shot blasting apparatus according to the prior art;

3 is a process chart showing deformation of a material during scale processing by a shot blasting apparatus according to the prior art;

4 is an exploded perspective view of the shot blasting apparatus according to the present invention;

5 is a cross-sectional view of the main parts of a fixing means for fixing an upper portion of a workpiece according to the present invention;

6 is a main structural view showing a guide means for guiding a material according to the present invention;

7 is a perspective view showing the assembled state of the shot blasting apparatus according to the present invention; And

8 is an operation diagram showing the flow of the guide during the shot blast operation in accordance with the present invention.

<Explanation of symbols for the main parts of the drawings>

1: drawing-in device 2: heating furnace

3: press 4: take-out

5. Shot blast device 6: Material

7: Iron powder 8: Fixed jig

9: turntable 11: motor

12: top plate 13: gear

21: cylinder 22: connecting plate

23: fixing plate 24: connecting rod

25: guide 26: spring

27: pin 28: connecting pin

29: fixed body 30: spring

31: bottom plate

The present invention relates to a shot blasting apparatus for removing the scale generated on the surface of the material after the hot press forming process, in particular a shot configured to prevent the deformation of the material by the high-pressure spraying material during the shot blasting process in advance. It relates to a material fixing device of the blast device.

In recent years, automakers are increasing the use of high-strength materials in order to meet the social demands for eco-friendly fuel economy and light weight in applying parts to automobiles. However, the molding of high-strength material has problems such as spring back and dimensional freezing, and due to the difficulty of molding, its use is limited.

The above molding problem can be solved by forming at high temperature with good moldability and quenching the material in the mold at the same time to obtain high strength parts, which is called hot press molding process. The hot material inevitably generates scale when it comes into contact with oxygen during transfer or cooling in the mold. The scale generated on the surface of the material requires a descale process such as shot blasting after molding.

In general, as shown in FIG. 1, when a material cut into an arbitrary size is supplied by the inlet device 1 and the material is heated and conveyed to a desired temperature in the heating furnace 2, the mold seated on the press 3 is transferred. The product 6 is formed by the press 3 operation and cooled at the same time by the operation of the press 3, and the material 6 taken out by the take-out device 4 is shot blasted for descaling work on the surface. The product 6 is introduced into the device 5.

2 is a schematic view of a short blasting apparatus according to the prior art, wherein the material 6 drawn out by the drawing device is rotated by using the rotating plate 9 after being fixed to a predetermined fixing jig 8 and rotated. ) By spraying an injection material such as iron powder (7) at high speed to remove the scale attached to the surface of the material (6) to obtain a clean hot press-forming product without a scale on the surface. Furthermore, the surface roughness of the product by the iron powder (7) can be obtained, which serves to improve the paintability during the painting work of the product (6), conventionally by placing the material (6) on the fixing jig (8) When the rotating plate 9 is rotated, the material 6 fixed to the fixing jig 8 assembled to the rotating plate 9 rotates, and then the iron powder 7 is sprayed to adjust the scale generated on various sides of the product 6. It is being removed.

3 is a process diagram showing the deformation of the material during the scale treatment by the shot blasting apparatus according to the prior art, in particular '' 'shaped material (6) because the injection material impinges on the material surface at high speed during rotation Since there is no separate fixing means other than the fixing jig, when the injection material collides with the weak supporting force of the material during rotation as shown in FIG. 3, deformation occurs, which remains a problem that the dimensions of the desired material cannot be obtained.

SUMMARY OF THE INVENTION An object of the present invention is to provide a material fixing apparatus of a shot blasting apparatus configured to perform a descale process after hot forming without deformation of a material.

It is another object of the present invention to provide a product fixing device of a shot blasting apparatus, which is configured to eliminate the shape and dimensional deformation of a material during the descale process, and as a result, to produce a quality material.

In order to solve the object as described above, the present invention has a top plate which is fixed by a shaft of a predetermined length on the rotating plate and a material for fixing at least one material having a groove between the rotating plate and the upper plate In the fixing device, it is installed on the rotating plate to enable idle rotation, the lower plate is fixed to the bottom of the material, the upper plate is installed in the bottom portion of the upper plate to be rotated by a predetermined driving means, the top of the material is fixed It is installed between the fixing plate and the fixing plate and the lower plate, characterized in that it comprises a connecting rod of a predetermined length at least one guide means which can be inserted into the groove of the material is mounted at regular intervals.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the case where it is determined that the gist of the present invention may be unnecessarily obscured, the detailed description thereof will be omitted.

4 is an exploded perspective view of the shot blasting apparatus 5 according to the present invention, wherein the shot blasting apparatus 5 according to the present invention is installed to rotate together with the rotating plate 9 and the rotating plate 9 by a predetermined shaft. And a fixing device for fixing the material between the upper plate 12 and the rotating plate 9 and the upper plate 12.

A fixing plate 23 is installed at the bottom of the upper plate 12 to allow self rotation. The fixing plate 23 is installed to be rotated by the motor 11 and the gear 13 installed on the upper plate 12, so that the teeth 231 of a predetermined shape on the upper portion of the fixing plate 23 Will be formed. In addition, the inside of the fixing plate 23 may be formed to have a groove having a shape corresponding to the outer surface of the material 6 to fix the upper portion of the material (6). Moreover, fixing means for fixing the upper part of the material 6 will be added.

5 is a cross-sectional view of the main portion of the fixing means for fixing the upper portion of the material according to the present invention, in which the fixing body 29 and the fixing body 29 are in contact with the outer surface of the inserted material at the outer surface of the fixing plate 23. It includes a connecting pin 28 for supporting the fixing plate 23. The spring 30 is interposed between the fixing body 29 and the connecting pin 28 so that the fixing body 29 is pressed in the direction of the material to prevent the material from being separated during rotation. Therefore, at least two fixing bodies 29 may be installed on the outer surface of the fixing plate 23.

In addition, the rotary plate 9 is provided with a lower plate 31 at a position corresponding to the fixing plate 23. The lower plate 31 is installed to enable idle rotation, and includes a structure for fixing the bottom of the material 6. Accordingly, a groove having a shape corresponding to the bottom cross section of the raw material 6 is formed in the lower plate 31 so that the raw material 6 may be fixed by being inserted into the groove of the lower plate.

On the other hand, according to the present invention, a connecting rod 24 of a predetermined length is installed between the fixing plate 23 and the lower plate 31. Preferably, the connecting rod 24 may be installed to penetrate the fixing plate 23 and the lower plate 31, and may be installed to enable idle rotation in the fixing plate 23 and the lower plate 31. Furthermore, the connecting rod 24 is installed to reciprocate vertically by the connecting plate 22 and the cylinder 21 installed on the fixing plate 23.

The connecting rods 24 are inserted in the groove portion of the material 6 to be installed are provided with a plurality of guide means for supporting the deformation of the material at regular intervals.

Figure 6 is a main configuration showing the guide means for guiding the material according to the present invention, the guide means is a projection which is fixed to flow with the connecting rod 24, the pivot rotational movement about one end in the projection And a pair of guides 25 and a pin 27 and a compression coil spring 26 for limiting the unfolding operation at the same time to open the guide 25 and the guide 25 to the left and right. Accordingly, the guide means is inserted into the recessed portion of the material 6 to be mounted, and the pair of guides 25 can be supported so that the material 6 is not deformed by the force to be spread from side to side.

7 is a perspective view showing an assembled state of the shot blasting apparatus according to the present invention, Figure 8 is an operation diagram showing the flow of the guide during the shot blasting operation according to the invention, the shot blasting operation according to the present invention It is as follows.

As shown, the material 6 having the grooves of a certain shape is fixed to the shot blasting apparatus 5. At this time, the bottom of the raw material 6 is inserted into the groove of the lower plate 31, and the upper portion is fixed to the fixing plate 23. Fixing body 29 of the fixing plate 23 will maintain the fixed state of the material 6 by pressing the outer surface of the material 6 to a certain pressing force. Also, when fixing the material 6, it is fixed so that the plurality of guide means are located in a predetermined groove portion. At this time, the plurality of guides 25 will support while pressing the inner surface of the groove of the material 6 to the outside. Thereafter, if the rotating plate 9 is rotated, and also the rotating plate 23 is rotated, the plurality of materials 6 fixed to the rotating plate 9 will rotate together, and each material is rotated according to the rotation of the fixing plate 23. (6) It also makes its own rotation. At this time, when the connecting rod 24 is reciprocated vertically by operating the cylinder 21 installed on the upper part of the fixing plate 23, the guide means performs a reciprocating motion together with the connecting rod in the material. This is to prevent the phenomenon that the shot blasting material (metal powder, etc.) sprayed by the guide means does not collide with the material 6, so as to evenly descale the surface of the material.

Apparently, there are many ways to modify these embodiments while remaining within the scope of the claims. In other words, there may be many other ways in which the invention may be practiced without departing from the scope of the following claims.

The material fixing device according to the present invention can induce an even collision of the material surface during the shot blasting process, and can prevent the deformation of the material by the guide means, thereby contributing to the improvement of the reliability of the product.

Claims (5)

Material fixing for fixing at least one material 6 having a groove between the rotating plate 9 and the upper plate 12 and having an upper plate 12 fixed by a shaft of a predetermined length on the rotating plate 9. In the apparatus, A lower plate 31 installed on the rotating plate 9 to enable idle rotation, and having a bottom of the material 6 fixed thereto; A fixing plate 23 installed at the bottom of the upper plate 12 to be rotated by a predetermined driving means, and having an upper portion of the material 6 fixed thereto; It is installed between the fixing plate 23 and the lower plate 31, characterized in that it comprises a connecting rod 24 of a predetermined length at least one guide means which can be inserted into the groove of the material 6 is mounted at regular intervals. Material fixing device of shot blasting device. The method of claim 1, The lower plate (31) material fixing device of the shot blasting device, characterized in that the groove is formed in a shape corresponding to the cross section of the material (6) so that the end of the material (6) can be inserted. The method of claim 1, The connecting rod 24 is installed so as to rotate idle through the fixing plate 23 and the lower plate 31, a cylinder that can reciprocate the connecting rod 24 by a predetermined distance in the vertical direction on the top of the fixing plate 23 The material fixing device of the shot blasting apparatus characterized by further installing (21). The method of claim 3, wherein the guide means, A protrusion fixed to rotate together in place of the connecting rod 24; A pair of guides 25 installed to pivot about one end of the protrusions; And a compression coil spring 26 interposed by the pins 27 between the guides 25 to press the pair of guides 25 to the left and right. . The method of claim 1, The fixing plate 23 has a groove having a shape corresponding to the outer shape of the material therein to allow the material 6 to rotate after insertion, and is installed on the upper plate 12 by a predetermined gearing combination. The material fixing device of the shot blasting device, characterized in that installed by the motor (11) to rotate itself.

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