KR102267165B1 - Workpiece fixing support device - Google Patents

Abstract

Disclosed is a workpiece fixing support apparatus which is able to place a workpiece between a fixer and an elevation clamp body of a cutting machine, lower an elevation clamp of the elevation clamp body toward the workpiece, fix the workpiece by letting the workpiece come in contact with a lower end of the elevation clamp, and guide and lower the elevation clamp by an elevation rail and an elevation guide with both ends horizontal as the same. Accordingly, the present invention is able to prevent the elevation clamp from being twisted, press an upper surface of the workpiece having a fine curved surface while fixing and supporting the workpiece, perform an elaborate processing of the workpiece, and prevent the workpiece from escaping during work. In addition, the present invention is able to have a simple configuration, reduce the installation cost, and greatly improve assembly workability, firmly grip and fix both ends of the workpiece, firmly fix and support the workpiece, easily settle the workpiece on an upper end of the fixer even if the workpiece is small, and prevent accidents of workers by an auxiliary clamp body's own driving.

Description

Workpiece fixing support device

The present invention relates to a device for fixing and supporting a workpiece, and more particularly, to prevent distortion of an elevating clamp for fixing and supporting a workpiece, as well as to firmly press both ends of the workpiece to fix and support it, and to prevent the workpiece from bouncing or twisting during cutting In addition, it relates to a work-piece fixing support device that can prevent a safety accident of an operator when the size of the work-piece is small.

In general, a cutting machine for chamfering a flat or curved surface of a workpiece is performed by moving the cutting machine along the longitudinal direction of the workpiece while the workpiece is fixed on a table.

Of course, there are also cutting machines in which the cutting machine does not move along the longitudinal direction of the work, but allows the machining to be performed by the cutting machine while the work is horizontally moved while the position of the cutting machine is fixed.

These cutting machines are equipped with elevating clamps to fix the work. Since the lowering operation of most elevating clamps is guided by the rack gear and lowered, the upper surface of the work and the lower end of the clamp are not in close contact horizontally. There is a problem in that both lower ends of the clamp are misaligned with respect to each other.

As such, when both sides of the lower end of the clamp are twisted, the upper surface of the work and the lower end of the clamp do not come into close contact with each other in a horizontal manner, so that it is difficult to firmly support the work.

In addition, as both ends of the workpiece are not firmly fixed and supported, the position of the workpiece is shifted. This is a problem in that a load is generated on the motor of the cutting body when the cutting body of the cutting machine moves along the length direction of the workpiece for processing. There is this.

In particular, when machining the front and rear surfaces of a workpiece simultaneously by a double-headed cutting machine having two cutting bodies positioned to face the front and rear surfaces of the workpiece, in particular, the drive motor of one cutting body is caused by a distorted workpiece. A load is generated on the motor, which inevitably leads to malfunction of the drive motor as well as poor machining.

In addition, in the case of a conventional elevating clamp for fixing and supporting a workpiece of a cutting machine, even if it is in close contact with the top surface of the workpiece, the workpiece has a slight curvature. There is a problem that the position is misplaced.

In addition, the conventional cutting machine is usually provided with a plurality of elevating clamps in order to fix and support the workpiece. When the size of the workpiece is smaller than the size of the clamp provided or the thickness is thin, the operator in the process of adjusting the position of the workpiece to the clamp There is a problem in that the fingers of the person are caught in the clamp and are exposed to a safety accident.

Looking at the prior art, Patent No. 10-0948011, a device for fixing a workpiece for flat processing has been devised, which is a vise having an upper insertion groove in which the workpiece is inserted and fixed between a clamping member clamped from the side and a fixed support member. Positioning the part, a front and rear opening type incision groove is formed below the upper insertion groove of the vise, and the first and second clamp protrusions are formed at the free open end above the center of the upper insertion groove, and at the lower end of the upper insertion groove It is made to form a seating protrusion to seat the workpiece, and even if there is a tolerance in the size of the workpiece, the height from the bottom to the machining plane of the finished workpiece can be within the desired precision error range.

However, as mentioned above, in the prior art, the problem of the elevating clamp for fixing and supporting the workpiece by descending in the vertical direction with respect to the workpiece cannot be solved.

Accordingly, there is an urgent need to develop a technology capable of solving the problems of the elevating clamp that is lowered to the workpiece and fixedly supported by pressing the workpiece.

Patent Document 1: Republic of Korea Patent No. 10-0948011 (registered on March 10, 2010) Patent Document 2: Republic of Korea Patent No. 10-1278663 (Registered on June 19, 2013)

In the present invention, both ends of the clamp are lowered horizontally with respect to the workpiece in fixing and supporting the workpiece with an elevating clamp to firmly press both ends of the upper surface of the workpiece to firmly fix and support the workpiece, as well as prevent distortion of the lifting clamp and distortion of the workpiece, thereby preventing the overload phenomenon of the driving motor of the cutting body, and at the same time preventing the occurrence of malfunctions in the cutting body, as well as preventing worker safety accidents in advance. An object of the present invention is to provide a work piece fixing support device.

As a means for achieving the above object, the present invention's workpiece fixing and supporting device includes a fixing base on which the lower surface of the workpiece is seated so as to be lowered toward the workpiece and fixedly support the workpiece, and the workpiece is lowered to the upper surface side of the workpiece seated on the fixture to fix and support the workpiece. In a workpiece fixing support device consisting of an elevating clamp body that is lifted from the upper surface of the work to release the fixed support of the work, and an elevating cylinder having an elevating cylinder rod fixed to the cutting machine by lowering or elevating the elevating clamp body. In the elevating cylinder rod of the elevating cylinder is provided with a first locking part and a second locking part, the elevating clamp body, the elevating clamp; a cylinder accommodating part penetrating through the inner side of the elevating clamp, the elevating cylinder being positioned, and the first locking fixing part being in close contact with the inner lower end; a fitting part provided at the lower end of the cylinder accommodating part and into which the second locking part of the elevating cylinder is fitted; The first locking part is seated on the upper surface and the second locking part is provided with an inlet hole positioned to correspond to the fitting part into which the second locking part fitted into the fitting part is introduced, and the first locking part is seated on the upper surface by bolt connection with the cylinder receiving part. And a cylinder fixing part to be fixed; a first elevating rail provided at both ends of the rear surface of the elevating clamp and having a first guide groove along the longitudinal direction and a second elevating rail having a second guide groove along the longitudinal direction; When the elevating clamp is elevating or lowering, the first elevating rail and the second elevating rail are guided to prevent distortion of the elevating clamp, and are fixed to the cutting machine, respectively, located at both ends of the rear surface of the elevating clamp The first elevating guide and the second elevating guide having a first guide protrusion into which the first guide groove of the first elevating and lowering rail is fitted and a second guide protrusion into which the second guide groove of the second elevating and lowering rail is fitted It is provided as a second elevating and descending guide.

Furthermore, a coupling groove is provided at the lower end of the elevating clamp along the longitudinal direction of the lower end of the elevating clamp, and a fitting hole for firmly fixing and supporting the workpiece by being fitted in the coupling groove and in close contact with the upper surface of the workpiece is provided. And, the lower end of the contact hole is provided with a rotating body connection hole for connecting the rotating body to enable rotation of the workpiece.

Furthermore, an auxiliary clamp body is provided on one side of the elevating clamp body, and the auxiliary clamp body is fixed to the cutting machine so as to be positioned on one side of the elevating clamp body and an auxiliary guide provided with an auxiliary guide groove inside; an auxiliary guide rail having auxiliary guide projections introduced into the auxiliary guide groove of the auxiliary guide; The auxiliary guide rail is fixed to the rear side and is positioned and fixed along the vertical direction of the rear side, the cylinder connection part is provided at the upper end, the auxiliary fastener fitting groove and the auxiliary fastener having an auxiliary fastener fitting into the auxiliary fastener fitting groove at the bottom elevating and lowering clamps; an auxiliary elevating cylinder fixed to the cutting machine and having a stepped connection protrusion fitted to the cylinder connection part of the auxiliary elevating and lowering clamp provided at the lower end of the auxiliary elevating/lowering cylinder rod; Auxiliary cylinder having an auxiliary cylinder fixing groove which is connected to the cylinder connection part of the auxiliary elevating clamp by bolts and is positioned to correspond to the cylinder connection part on the inside, and the stepped connection part provided in the auxiliary elevating/lowering cylinder rod fitted to the cylinder connection part is inserted and positioned It is provided as a fixed part.

In the present invention, after placing the workpiece between the fixing table of the cutting machine and the elevating clamp body, the elevating clamp of the elevating clamp body is lowered to the workpiece side to be in close contact with the lower end of the elevating clamp to the work piece. Both ends of the clamp are guided in the same horizontal state by the elevating rail and elevating guide and as it descends, it is possible to prevent the elevating clamp from being twisted and to fix and support the work piece while closely pressing the upper surface of the work piece with a fine curved surface. Therefore, it is possible to prevent the workpiece from bouncing off during operation as well as elaborate processing of the workpiece, and it can greatly improve the installation cost as well as the assembly workability by a simple configuration. It is possible to provide a strong fixed support of the auxiliary clamp body, and even if the size of the workpiece is small, the workpiece can be easily and easily seated on the top of the fixture, and safety accidents of the operator can be prevented by the self-driving of the auxiliary clamp body.

1 is a perspective view showing an example of a cutting machine to which the present invention, a fixing and supporting device for a workpiece is applied.
Figure 2 is a configuration diagram showing a state in which the fixing and supporting device of the present invention is lifted.
Figure 3 is a perspective view of the present invention in a state in which the workpiece fixing support device is lowered.
Figure 4 is a configuration diagram of the present invention in a state in which the workpiece fixing support device is lowered.
Figure 5 is an exploded perspective view showing the configuration of the elevating clamp body of the present invention fixed support device for the workpiece.
6 is a block diagram of a state in which the workpiece is fixed to the fixing device for fixing the workpiece according to the present invention.
7 is an exploded perspective view showing the configuration of the auxiliary clamp body of the present invention, the fixing and supporting device for the workpiece.
8 is a configuration diagram of a state in which the auxiliary clamp of the present invention fixing and supporting a workpiece is lifted.

Hereinafter, in addition to the above objects, other objects and features of the present invention will become apparent through the description of the embodiments with reference to the accompanying drawings.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

Hereinafter, with reference to the accompanying drawings, a work piece fixing support device according to an embodiment of the present invention will be described in more detail.

As shown, the present invention is descended toward the workpiece 101 and the lower surface of the workpiece 101 is seated so as to fix and support the workpiece 101, the fixture 102, and the workpiece 101 seated on the fixture 102. An elevating clamp body 100 that descends to the upper surface side of the work piece 101 to fix and support the work piece 101 and lift from the upper surface of the work piece 101 to release the fixed support of the work piece 101, and the elevating lowering clamp body 100 It relates to a work-piece fixing and support device consisting of an elevating cylinder (200) having an elevating cylinder bar (210) fixed to the cutting machine (103) by lowering or elevating it.

In the description of the present invention, the cutting machine 103 cuts one or both surfaces of the workpiece 101 mounted on the fixture 102 , and a detailed description thereof will be omitted.

The present invention not only securely fixes and supports the workpiece 101 to be cut, but also prevents distortion and bounce during cutting, and prevents overload of the cutting motor of the cutting machine 103 to minimize the failure rate and reduce machining defects. in order to be minimized.

To this end, in the present invention, the elevating cylinder rod 210 of the elevating cylinder 200 is provided with a first engaging fixing part 211 and a second engaging fixing part 212 .

In addition, the elevating clamp body 100, the elevating clamp 110, and the elevating clamp 110 is penetrated inside the elevating cylinder 200 is located, the first locking part 211 is A cylinder accommodating part 120 in close contact with the inner lower end, and a fitting part 130 provided at the lower end of the cylinder accommodating part 120 and into which the second locking part 212 of the elevating cylinder 200 is fitted; It is positioned to correspond to the fitting portion 130 and is provided with an inlet hole 141 through which the second locking fixing portion 212 fitted into the fitting portion 130 is introduced, and is bolted to the cylinder receiving portion 120 . The first locking fixing part 211 is seated on the upper surface and the cylinder fixing part 140 to which the second locking fixing part 212 is fixed, and provided at both ends of the rear surface of the elevating clamp 110, respectively, in the longitudinal direction. A first elevating rail 152 having a first guide groove 151 along the second elevating rail 154 having a second guide groove 153 along the longitudinal direction, and the elevating clamp ( When the 110) is raised or lowered, the first elevating rail 152 and the second elevating rail 154 are guided to prevent the elevating and lowering clamp 110 from being distorted, and is fixed to the cutting machine 103. The first elevating and lowering first elevating and lowering having a first guide protrusion 161 fixed to be positioned at both ends of the rear surface of the elevating clamp 110 and into which the first guide groove 151 of the first elevating and lowering rail 152 is fitted. It is provided as a second elevating guide 164 having a second guide protrusion 163 into which the guide 162 and the second guide groove 153 of the second elevating and lowering rail 154 are fitted.

The elevating clamp 110 is lowered toward the fixture 102 on which the workpiece 101 is mounted by the elevating cylinder rod 210 of the elevating cylinder 200 being withdrawn from the elevating cylinder 200, and elevating and lowering. When the cylinder rod 210 is drawn into the elevating cylinder 200 side, it is elevated from the fixture 102 .

The elevating cylinder 200 is an elevating cylinder rod of the elevating cylinder 200 fixed to the cutting machine 103 as it is accommodated in the cylinder accommodating part 120 provided inside the elevating clamp 110 . 210 is not interfered with the operation of drawing in and out, and after the second locking part 212 of the elevating cylinder rod 210 is inserted into the fitting part 130 , the first by the cylinder fixing part 140 . When the elevating cylinder rod 210 is withdrawn by the locking fixing part 211 and the second stopping fixing part 212 being fixed to the elevating clamp 110, the elevating clamp 110 is fixed to the fixture 102. By pushing to the side, the elevating clamp 110 is lowered, and when the elevating cylinder rod 210 is retracted, the elevating clamp 110 is elevated by pulling the elevating clamp 110 .

In this way, when the elevating clamp 110 is lowered in order to fix the workpiece 101 mounted on the holder 102, the first elevating rail 152 fixed to both ends of the rear surface of the elevating clamp 110, respectively, and As the second elevating rail 154 guides the lowering operation of the elevating clamp 110 with the first elevating and lowering guide 162 and the second elevating guide 164 fitted, the elevating clamp 110 is prevented from being twisted to the left and right, so that it descends horizontally and vertically with respect to the workpiece 101 .

Accordingly, since the upper surface of the workpiece 101 can be uniformly fixed as a whole, it is possible to prevent distortion of the workpiece 101 as well as processing defects due to the distortion of the workpiece in advance.

In addition, at the lower end of the elevating clamp 100 of the present invention, a coupling groove 171 is provided along the longitudinal direction of the lower end of the elevating clamp 110 , and is fitted into the coupling groove 171 to form the workpiece 101 . A contact hole 170 for firmly fixing and supporting the workpiece 101 by being in close contact with the upper surface is provided.

The material of the adhesion hole 170 is not limited, of course, but when the elevating clamp 110 presses the upper surface of the workpiece 101 by the lowering operation of the elevating clamp 110, the upper surface of the workpiece 101 It may be made of an elastic rubber material that expands while being pressed and returns to its original position when the pressing operation of the elevating clamp 110 is released.

As described above, since the contact hole 170 is fitted into the coupling groove 171 provided at the lower end of the elevating clamp 110 and is fixed, the contact hole 170 is expanded while being pressed on the upper surface of the workpiece 101 to expand the workpiece ( 101) The upper surface can be pressed, so that the upper surface of the workpiece 101 is firmly adhered, and in particular, the upper surface of the micro-curved workpiece 101 can be pressed evenly throughout, so that the workpiece 101 can be firmly fixed and supported. .

In addition, a rotating body connection hole 172 for connecting a rotating body, such as a rotating roller, is provided at the lower end of the adhesion port 170 to rotate the workpiece 101 .

As described above, as the rotating body connection hole 172 is provided at the lower end of the contact hole 170, when a rotatable rotating roller is connected to the rotating body connection hole 172, it is located at the lower end of the elevating clamp 110. The workpiece 101 can be rotated.

An auxiliary clamp body 300 is provided on one side of the elevating clamp body 100 of the present invention.

The auxiliary clamp body 300 is lowered first before the elevating clamp 110 of the elevating clamp body 100 descends and presses and fixes the work 101 to fix the work 101. The upper end of the fixture 102 After placing the workpiece 101, the auxiliary clamp 300 is lowered to lower the elevation clamp 110 of the elevation clamp body 100 in a state where the processing position of the workpiece 101 is fixed to lower the workpiece 101. Fix it.

The auxiliary clamp body 300 of the present invention is fixed to the cutting machine 103 so as to be located on one side of the elevating clamp 110 and an auxiliary guide 310 having an auxiliary guide groove 311 on the inside thereof; An auxiliary guide rail 320 provided with an auxiliary guide protrusion 321 inserted into the auxiliary guide groove 311 of the auxiliary guide 310, and the auxiliary guide rail 320 are fixed to the rear surface in the vertical longitudinal direction of the rear surface Auxiliary elevating and lowering having an auxiliary fitting groove 332 at the bottom and an auxiliary fitting hole 333 fitted in the auxiliary fitting fitting groove 332 and having a cylinder connection part 331 at the upper end and the auxiliary fitting fitting groove 332 A clamp 330 and a stepped connecting protrusion 341 fixed to the cutting machine 103 and fitted into the cylinder connection part 331 of the auxiliary elevating/lowering clamp 330 are provided at the bottom of the auxiliary elevating/lowering cylinder rod 342 . The auxiliary elevating cylinder 340 and the auxiliary elevating and lowering clamp 330 are bolted and connected to the cylinder connecting portion 331 and positioned to correspond to the cylinder connecting portion 331 on the inside to fit into the cylinder connecting portion 33. The step connecting portion 341 provided on the elevating cylinder rod 342 is provided as an auxiliary cylinder fixing portion 350 having an auxiliary cylinder fixing groove 351 into which the auxiliary cylinder fixing groove 351 is located.

The auxiliary lifting and lowering clamp 330 is lowered to the workpiece 101 or lifted from the workpiece 101 by the drawing-out operation of the auxiliary lifting and lowering cylinder rod 342 drawn out from the auxiliary lifting and lowering cylinder 340 .

To this end, the stepped connection part 341 provided at the lower end of the auxiliary elevating cylinder rod 342 is fitted and connected to the cylinder connecting unit 331, and then the auxiliary elevating and lowering clamp 330 and the auxiliary elevating clamp 330 are firmly connected by the auxiliary cylinder fixing unit 350. is fixed

At this time, the reason for connecting the stepped connection part 341 fitted to the cylinder connection part 331 to be stepped as shown is that the upper part of the stepped connection part 341 is positioned in close contact with the upper surface of the cylinder connection part 331 and the stepped connection part 331 is located. As the lower part of the connection part 341 is inserted into the cylinder connection part 331 and inserted into the inside, the auxiliary elevation clamp 330 by the elevation operation of the auxiliary elevation cylinder rod 342 is raised or lowered. This is to prevent the lowering clamp 330 and the auxiliary lifting and lowering cylinder rod 342 from being separated from each other.

Since the auxiliary clamp body 300 is provided in this way, the auxiliary lifting and lowering clamp 330 of the auxiliary clamp body 300 is lowered to position the workpiece when the workpiece 101 is placed on the fixing table 102 and processed. In the setting process, as the elevating clamp 110 of the elevating clamp body 100 is elevating, it is possible to prevent interference by the elevating clamp 110 when setting the machining position of the workpiece 101 In addition, the auxiliary lifting clamp 330 of the auxiliary clamp body 300 is lowered first to set the machining position of the workpiece 101, and then the lifting clamp 110 of the lifting clamp body 100 is lowered to lower the workpiece ( 101) should be fixedly supported.

Accordingly, since the processing position of the workpiece 101 can be precisely set after the workpiece 101 is placed on the holder 102 regardless of the thickness as well as the size of the workpiece 101, it is possible to greatly improve the working convenience. Of course, when setting the processing position of the workpiece 101, since the lifting clamp 110 is not lowered but is positioned in an elevated state, the clamp is lowered when setting the position of the workpiece 101, causing injury to the operator's hand. Accidents can be prevented in advance.

As described above, the present invention has been described with specific matters such as specific components and limited embodiments and drawings, but these are provided to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. Various modifications and variations are possible from these descriptions by those of ordinary skill in the art to which the present invention pertains.

Accordingly, the spirit of the present invention should not be limited to the described embodiments, and not only the claims described below, but also all those with equivalent or equivalent modifications to the claims will fall within the scope of the spirit of the present invention.

100: elevating clamp body 110: elevating clamp
120: cylinder receiving part 130: fitting part
140: cylinder fixing part 141: inlet hole
151: first guide groove 152: first elevating and descending rail
153: second guide groove 154: second elevating rail
161: first guide projection 162: first elevating and descending guide
163: second guide projection 164: second elevating and descending guide
170: adhesion port 171: coupling groove
172: rotating body connection hole
200: elevating cylinder 210: elevating cylinder rod
211: first locking fixing part 212: second locking fixing part
300: auxiliary clamp body 310; auxiliary guide
311 ; Auxiliary guide groove 320: auxiliary guide rail
321: auxiliary guide projection 330: auxiliary lifting and lowering clamp
331: cylinder connection part 332: auxiliary fitting fitting groove
333: auxiliary adhesion port 340: auxiliary elevating cylinder
341: step connection protrusion 342: auxiliary elevating cylinder rod
350: auxiliary cylinder fixing part 351: auxiliary cylinder fixing groove

Claims (3)

The fixing table 102 on which the lower surface of the workpiece 101 is seated is lowered toward the workpiece 101 and fixedly supporting the workpiece 101, and the workpiece 101 is lowered to the upper surface side of the workpiece 101 seated on the fixing table 102 to support the workpiece 101 in a fixed manner. ) fixed and supported and lifted from the upper surface of the workpiece 101 to release the fixed support of the workpiece 101, and the elevation clamp body 100 is lowered or lowered by a cutting machine 103 In the workpiece fixing support device consisting of an elevating cylinder 200 having an elevating cylinder rod 210 fixed to ),
The elevating cylinder rod 210 of the elevating cylinder 200 is provided with a first engaging fixing part 211 and a second engaging fixing part 212,
The elevating clamp body 100,
Elevating clamp 110 and;
a cylinder accommodating part 120 penetrating through the inside of the elevating clamp 110, the elevating cylinder 200 being positioned, and the first locking fixing part 211 being in close contact with the inner lower end;
a fitting portion 130 provided at the lower end of the cylinder accommodating portion 120 to which the second locking fixing portion 212 of the elevating cylinder 200 is fitted;
It is positioned to correspond to the fitting portion 130 and is provided with an inlet hole 141 through which the second locking fixing portion 212 fitted into the fitting portion 130 is introduced, and is bolted to the cylinder receiving portion 120 . a cylinder fixing part 140 to which the first locking fixing part 211 is seated on the upper surface and the second locking fixing part 212 is fixed thereto;
A first elevating rail 152 provided at both ends of the rear surface of the elevating clamp 110 and having a first guide groove 151 along the longitudinal direction and a second guide groove 153 are provided along the longitudinal direction. a second elevating and descending rail 154;
When the elevating clamp 110 is elevating or lowering, the first elevating rail 152 and the second elevating rail 154 are guided to prevent distortion of the elevating clamp 110,
A first guide projection fixed to the cutting machine 103 and fixed to be positioned at both ends of the rear surface of the elevating clamp 110 and into which the first guide groove 151 of the first elevating rail 152 is fitted ( The second elevating guide 164 provided with a second guide protrusion 163 into which the second guide groove 153 of the first elevating guide 162 and the second elevating and lowering rail 154 is fitted. ), a work piece fixing support device, characterized in that provided with.
The method of claim 1,
The lower end of the elevating clamp 110 is provided with a coupling groove 171 along the longitudinal direction of the lower end of the elevating clamp 110,
A contact hole 170 for firmly fixing and supporting the workpiece 101 by being fitted into the coupling groove 171 and being in close contact with the upper surface of the workpiece 101 is provided,
A work fixing support device, characterized in that the lower end of the contact hole 170 is provided with a rotating body connection hole 172 for connecting the rotating body so that the work 101 can be rotated. The method of claim 1,
An auxiliary clamp body 300 is provided on one side of the elevating clamp body 100,
The auxiliary clamp body 300,
an auxiliary guide 310 fixed to the cutting machine 103 so as to be positioned on one side of the elevating clamp 110 and provided with an auxiliary guide groove 311 on the inside;
an auxiliary guide rail 320 having an auxiliary guide protrusion 321 inserted into the auxiliary guide groove 311 of the auxiliary guide 310;
The auxiliary guide rail 320 is fixed to the rear surface and is positioned and fixed along the vertical direction of the rear surface, the cylinder connection part 331 is provided at the upper end, and the auxiliary adhesive fitting groove 332 and the auxiliary fitting fitting groove are provided at the lower end. Auxiliary lifting and lowering clamp 330 having an auxiliary adhesive hole 333 fitted in (332) and;
Auxiliary elevating cylinder (341) fixed to the cutting machine 103 and provided at the bottom of the auxiliary elevating/lowering cylinder rod 342 with a stepped connection protrusion 341 fitted to the cylinder connection part 331 of the auxiliary elevating and lowering clamp 330 ( 340) and;
The auxiliary elevating and lowering cylinder rod 342 is bolted connected to the cylinder connecting portion 331 of the auxiliary elevating clamp 330 and positioned to correspond to the cylinder connecting portion 331 on the inside and fitted to the cylinder connecting portion 331. A workpiece fixing support device, characterized in that it is provided with an auxiliary cylinder fixing part (350) having an auxiliary cylinder fixing groove (351) into which the stepped connection part (341) is inserted.

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