Workpiece support for a thermal processing machine

Abstract

A workpiece support body of a hot processing machine is provided on a workpiece support table for supporting a workpiece of a hot processing object, and has a base member and a support member. The base member is formed in a horizontal long shape by a plate-like member, and a plurality of convex indicating member mounting portions are provided at a predetermined distance apart at an upper portion. The support member is formed in a horizontal long shape by a plate-like member, and a lower edge is alternately inserted into front and rear surfaces of adjacent ones of the plurality of indicating member mounting portions of the base member, and is provided in a detachable state.

Description

TECHNICAL FIELD

[0001] The present application relates to a work piece support body of a thermal processing machine. BACKGROUND

[0002] Nowadays, a plurality of plate-shaped work piece support bodies (work piece support members) are provided as support members for supporting a work piece, which is a metal plate to be processed, from the lower surface, on a work piece support table of a thermal processing machine such as a laser processing machine or a plasma processing machine. The plurality of work piece support bodies are arranged at a predetermined interval in a state in which the plate surface is perpendicular to the ground on the work piece support table.

[0003] If a work piece, which is a processing target, is placed on the work piece support table in which the plurality of work piece support bodies are arranged, the upper end of each work piece support body abuts against the lower surface of the work piece, and the work piece is supported.

[0004] PRIOR ART DOCUMENTS

[0005] PATENT DOCUMENTS

[0006] Patent Document 1: Japanese Patent Application Laid-Open No. 2001-314998 SUMMARY

[0007] The work piece support body described above needs to be appropriately replaced because breakage due to thermal processing of the supported work piece cannot be avoided. At this time, if each work piece support body is composed of a single member, the entire member must be replaced together with the work piece support body, and there is a problem that production costs are incurred and labor and time for the replacement work are spent.

[0008] One embodiment of the present application provides a work piece support body of a thermal processing machine that can efficiently and easily replace a portion that supports a work piece of a thermal processing target.

[0009] One embodiment of the present application is a work piece support body of a thermal processing machine that is provided on a work piece support table in order to support a work piece of a thermal processing target, and includes: a base member formed in a horizontal long shape by a plate-shaped member, in which a plurality of convex-shaped indication member mounting portions are provided at a predetermined distance interval in the upper portion; and a support member formed in a horizontal long shape by a plate-shaped member of carbon fiber, in which the lower edge is alternately inserted into the front surface and the rear surface of the plurality of adjacent indication member mounting portions of the base member, and is provided in a detachable state.

[0010] According to one embodiment of the present application, a work piece support body of a thermal processing machine that can efficiently and easily replace a portion that supports a work piece of a thermal processing target can be provided. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1is an appearance perspective view of a laser processing machine showing a workpiece support body of a thermal processing machine in one embodiment.

[0012] Figure 2 is (a) an appearance perspective view and (b) a side view of a workpiece support body 30A of a first configuration example of a workpiece support body in one embodiment.

[0013] Figure 3 is (a) an appearance perspective view and (b) a side view of a workpiece support body 30B of a second configuration example of a workpiece support body in one embodiment.

[0014] Figure 4 is an appearance perspective view of a workpiece support body 300 of a third configuration example of a workpiece support body in one embodiment.

[0015] Figure 5 is an appearance perspective view of a workpiece support body 400 of a fourth configuration example of a workpiece support body in one embodiment.

[0016] Figure 6 is (a) a front view of a base member 410 and (b) a front view of support members 421, 422 of a workpiece support body 400 of a fourth configuration example of a workpiece support body in one embodiment. DETAILED DESCRIPTION

[0017] Hereinafter, a thermal processing machine, i.e., a laser processing machine using a workpiece support table provided with a workpiece support body of one embodiment will be described with reference to the drawings.

[0018] Figure 1 is an appearance perspective view of a laser processing machine 1 showing a workpiece support body 30 of a thermal processing machine in one embodiment. The laser processing machine 1 of the present embodiment performs cutting processing, as shown in Figure 1 A workpiece support table 3 for arranging a workpiece W, which is a thermal processing target, is provided on a device base 2. A plurality of workpiece support bodies 30 for supporting the workpiece W, which is a processing target, are arranged in the X direction on the workpiece support table 3. The raw material and shape of each workpiece support body 30 will be described hereinafter.

[0019] The laser processing machine 1 is provided with a portal frame 4 arranged so as to straddle the workpiece support table 3. The portal frame 4 has side frames 41, 42 and an upper frame 43.

[0020] A carriage 5 is provided inside the upper frame 43 so as to be movable in the Y direction. A laser head 51 that emits a laser is mounted on the carriage 5. The portal frame 4 is moved in the X direction by a dedicated drive system (not shown), and the carriage 5 is moved in the Y direction by a dedicated drive system (not shown), so that the laser head 51 is configured to be arbitrarily moved in the X and Y directions above the workpiece W.

[0021] A numerical control device (NC device) 6 for controlling the laser processing machine 1 is installed in the frame 4. The NC device 6 controls the laser processing machine 1 in accordance with processing data (NC data) for processing the workpiece W. The NC device 6 is a control device that controls the laser processing machine 1.

[0022] Under the control of the NC device 6, the laser head 51 irradiates the workpiece W with laser light while moving in the X direction or the Y direction with the frame 4 and the carriage 5, thereby performing cutting processing on the workpiece W.

[0023] A workpiece support 30 provided to the workpiece support table 3 will be described. The workpiece support 30 needs to be appropriately replaced because it cannot avoid breakage due to thermal processing on the supported workpiece W. At this time, because the workpiece support 30 is configured in a manner that enables replacement of only a part of a broken portion, it is possible to suppress production costs.

[0024] As a first configuration example and a second configuration example of the workpiece support 30 that enables replacement of a part, a workpiece support 30A shown in Figure 2 and a workpiece support 30B shown in Figure 3 will be described.

[0025] Figure 2 A workpiece support 30A of a first configuration example of the workpiece support 30 in one embodiment will be described. Figure 2 (a) of FIG. 10 is an appearance perspective view of the workpiece support 30A, Figure 2 (b) of FIG. 10 is a side view of the workpiece support 30A. The workpiece support 30A is formed using a base member 31 configured of a plate-shaped member of a lateral long shape made of metal and a plate-shaped member of carbon fiber. The workpiece support 30A has a plurality of support members 33a, 33b, 33c, 33d, and 33e connected to an upper portion of the base member 31 by a connection member 32. A carbon fiber configuring the base member 31 will be described below. Figure 2 The case where the support members connected to the base member 31 are five is shown in (a) of FIG. 10, but is not limited to this number, and can be one or more than two without being replaced in part.

[0026] The support members 33a to 33e are each configured of a long strip-shaped plate-shaped member whose long side is shorter than that of the base member 31, and as shown in (a) of FIG. 10, are continuously provided in the lateral direction along the upper edge of the base member 31. Figure 2 Figure 2 ​The support members 33a to 33e are connected to the base member 31 by three connecting members 32 in (a), but the number of connecting members 32 is not limited to this.

[0027] If the workpiece W to be processed is placed on the workpiece support table 3 on which a plurality of the above-described workpiece support bodies 30A are arranged, the upper end portions of the support members 33a to 33e of each workpiece support body 30A abut against the lower surface of the workpiece W, and the workpiece W is supported. Then, heat processing is performed on the workpiece W supported by the laser processing machine 1.

[0028] If heat processing is performed on the workpiece support table 3, damage can sometimes occur in the support members 33a to 33e of any one of the workpiece support bodies 30A. In this case, the worker detaches the damaged support member of the workpiece support body 30A in which the damage has occurred from the connecting member 32, and replaces it with a new support member, and the workpiece support table 3 can be maintained in an appropriate state.

[0029] Next, the workpiece support body 30B will be described. Figure 3 The workpiece support body 30B is a second example of the workpiece support body 30 in one embodiment. Figure 3 (a) of FIG. 10 is an external perspective view of the workpiece support body B, Figure 3 (b) of FIG. 10 is a side view of the workpiece support body B. The workpiece support body 30B has a base member 34 composed of a metal plate-shaped member of a horizontal long shape, and a plurality of support members 35a, 35b, 35c, 35d, and 35e composed of carbon fiber plate-shaped members and provided on the upper portion of the base member 34.

[0030] The support members 35a to 35e are each composed of a long strip-shaped plate-shaped member whose long side is shorter than that of the base member 34, and a groove portion 351a to 351e in which the base member 34 can be inserted is formed in the long side of the lower portion. The support members 35a to 35e are arranged continuously in the horizontal direction as shown in (a) of FIG. 10 with the upper edge of the base member 34 inserted into each groove portion 351a to 351e. Figure 3

[0031] If the workpiece W to be processed is placed on the workpiece support table 3 on which a plurality of the above-described workpiece support bodies 30B are arranged, the upper end portions of the support members 35a to 35e of each workpiece support body 30B abut against the lower surface of the workpiece W, and the workpiece W is supported. Then, heat processing is performed on the workpiece W supported by the laser processing machine 1.

[0032] ​If any of the support components 35a to 35e of the workpiece support 30B is damaged, the operator can simply remove the damaged support component of the workpiece support 30B from the base component 34 and replace it with a new support component, thus maintaining the workpiece support 3 in an appropriate state.

[0033] Using the aforementioned workpiece support 30A or workpiece support 30B on the workpiece support platform 3 allows for the efficient reconstruction of the workpiece support by simply replacing the damaged support components.

[0034] However, due to repeated use, the connecting part 32 and the supporting parts 33a-33e of the workpiece support 30A sometimes come into contact, causing wear and deformation in either part, resulting in wobbling of the connecting mechanism. Similarly, the connecting mechanism between the grooves 351a-351e and the base part 34 of the workpiece support 30B sometimes also wobbles due to repeated use.

[0035] Furthermore, since the workpiece support 30A uses connecting parts 32, the number of constituent parts is large, resulting in higher manufacturing and installation costs. Additionally, the workpiece support 30B incurs labor time and manufacturing costs for machining the grooves 351a-351e in the manufacturing of the support parts 35a-35e.

[0036] The workpiece support 300, which constitutes a third structural example for solving the above-mentioned problem, will be described. Figure 4 This is a perspective view of a workpiece support 300 according to a third structural example of a workpiece support in one embodiment. The workpiece support 300 of the third structural example, which is mounted on a workpiece support table 3 to support a workpiece W to be heat-processed, includes: a base member 310, formed of a plate-like member in a horizontally elongated shape, with a plurality of protruding indicator mounting portions 311-317 spaced at predetermined intervals on its upper part; and support members 321-323, also formed of plate-like members in a horizontally elongated shape, with their lower sides alternately embedded in the front and rear surfaces of adjacent indicator mounting portions 311-317 of the base member 310, and are provided in a detachable state. The support members 321-323 are formed of carbon fiber. The support members 321-323 are formed in a horizontally elongated shape with their long side shorter than that of the base member 310, and a plurality of them are provided on the base member 310.

[0037] The workpiece support 300 of the third structural example will be described in detail below. For example... Figure 4 As shown, the workpiece support 300 includes: a base member 310, which is formed from a metal plate-shaped member in a transversely elongated shape; and a plurality of support members 321, 322 and 323, which are formed from carbon fiber plate-shaped members in a shape whose long side is longer than the transversely elongated shape of the base member 310, and are arranged transversely on the upper part of the base member 310.

[0038] The base member 310 is provided with a plurality of convex indicating member mounting portions 311 to 317 at a predetermined distance apart from the long side of the support members 321 to 323 at the upper portion.

[0039] Specifically, the indicating member mounting portion 311 is provided at one end of the upper portion of the base member 310, the indicating member mounting portion 312 is provided at a position of 1 / 6 of the length of the base member 310 from the end portion, the indicating member mounting portion 313 is provided at a position of 1 / 3 of the length of the base member 310 from the end portion, the indicating member mounting portion 314 is provided at a position of 1 / 2 of the length of the base member 310 from the end portion, the indicating member mounting portion 315 is provided at a position of 2 / 3 of the length of the base member 310 from the end portion, the indicating member mounting portion 316 is provided at a position of 5 / 6 of the length of the base member 310 from the end portion, and the indicating member mounting portion 317 is provided at the other end.

[0040] The support members 321 to 323 are formed by cutting out an elongated shape from a thin plate woven from a rope-like carbon fiber, such as a carbon fiber reinforced carbon composite (C / C composite material). Woven means a weaving method in which the fibers are crossed one by one in the longitudinal and lateral directions. In addition, the weaving method of the carbon fiber can be satin (silk) weave, twill weave, or a pear skin weave or an irregular weave, as long as the fiber is woven in a certain configuration. The C / C composite material is reinforced by impregnating various substances in the woven carbon fiber, and thus is formed in a thin plate shape to have elasticity.

[0041] The support members 321 to 323 are each formed in a horizontal long shape having a long side of about 1 / 3 of the long side of the base member 310. Furthermore, by the elasticity of the carbon fiber, the lower edge of each is inserted into the front surface and the rear surface of the adjacent plurality of indicating member mounting portions of the base member 310 in an alternately hooked manner.

[0042] Specifically, the mounting operator hangs (hanging) the left end of the lower edge of the support member 321 on the front surface of the indication member mounting portion 311 of the base member 310, hangs the center vicinity on the rear surface of the indication member mounting portion 312, and hangs the right end on the front surface of the indication member mounting portion 313, thereby embedding the support member 321 in the base member 310. Also, the left end of the lower edge of the support member 322 is hung on the front surface of the indication member mounting portion 313, the center vicinity is hung on the rear surface of the indication member mounting portion 314, and the right end is hung on the front surface of the indication member mounting portion 315, thereby embedding the support member 322 in the base member 310. Also, the left end of the lower edge of the support member 323 is hung on the front surface of the indication member mounting portion 315, the center vicinity is hung on the rear surface of the indication member mounting portion 316, and the right end is hung on the front surface of the indication member mounting portion 317, thereby embedding the support member 323 in the base member 310.

[0043] If the support members 321 to 323 are embedded in the base member 310 as such, the support members 321 to 323 hold the indication member mounting portions 311 to 317 of the base member 310 by their elastic force, and are mounted in a stable state without shaking. Also, if the support members 321 to 323 are raw materials having elastic properties, they can hold the indication member mounting portions 311 to 317, and thus can be mounted in a stable state even if they are formed of existing iron-based, aluminum-based, or expensive copper-based raw materials. In the above-described embodiment, the reason why the support members 321 to 323 are made of carbon fibers in a rope shape is to make it difficult for the support members 321 to 323 to be fused with the workpiece W at the time of laser cutting of the workpiece W, to make it difficult for dross at the time of cutting of the workpiece W to adhere, and to make it an elastic body.

[0044] A plurality of the above-described workpiece support bodies 300 are arranged on the workpiece support table 3, and a workpiece W on which processing is to be performed is placed thereon, and the workpiece W is subjected to heat processing in this state. If any of the support members is broken due to the heat processing, the operator pulls up the broken support member of the broken workpiece support body 300 and detaches it from the base member 310. Then, a new support member is hung and mounted on the indication member mounting portion of the broken portion. In this way, each of the support members 321 to 323 is configured to be easily attached to and detached from the base member 310.

[0045] The workpiece support body 300 is used for the workpiece support table 3, and thus it is possible to reproduce a workpiece support body that is highly efficient and stable in that only a broken support member is replaced. The support member manufactured as a replacement member is of a simple structure, and thus it can be easily manufactured by rough machining, and it is possible to suppress manufacturing costs.

[0046] In the work support 300 of the third configuration example described above, since the support members 321 to 323 are formed of carbon fibers, sticking of molten metal that is melted from the work W at the time of hot working can be prevented. However, in the case where the work W is thick, the amount of molten metal that is melted from the work W at the time of working increases. Therefore, dross adheres to the lower surface of the work W and is sandwiched from above by the work support 300, and it is possible that the molten metal sticks to the support members 321 to 323.

[0047] In this way, if molten metal adheres, the work W and the support members 321 to 323 become a state of being connected by the molten metal, and when the worked work W is lifted by the fork lift or the like, the corresponding support members 321 to 323 are also pulled upward. If the support members 321 to 323 are pulled upward, the support members 321 to 323 are detached from the base member 310, and a defective condition occurs.

[0048] A fourth configuration example of a work support 400 that is configured to avoid this defective condition will be described. Figure 5 Fig. 11 is an external perspective view of the work support 400 that is a fourth configuration example of a work support in an embodiment.

[0049] The work support 400 has a base member 410 that is formed in a horizontal long shape by a plate-shaped member made of metal, and a plurality of support members 421 and 422 that are formed in a horizontal long shape with a shorter long side than the base member 410 by a plate-shaped member made of carbon fibers, and are provided in the upper portion of the base member 410 in a lateral arrangement. Figure 6 Fig. 11 is an external perspective view of the work support 400 that is a fourth configuration example of a work support in an embodiment. Figure 6 (a) of Fig. 11 is a front view of the base member 410, Figure 6 (b) of Fig. 11 is a front view of the support members 421 and 422. The support members 421 and 422 of the work support 400 of the fourth configuration example have insertion holes 421a, 421b, 422a, and 422b in the lower portion, and the base member 410 has hook-shaped portions 411, 412, 415, and 416 that are hooked to the insertion holes 421a, 421b, 422a, and 422b.

[0050] Hereinafter, the work support 400 of the fourth configuration example will be described in detail. As shown in Figs. 11 to 14, the work support 400 has a base member 410 that is formed in a horizontal long shape by a plate-shaped member made of metal, and a plurality of support members 421 and 422 that are formed in a horizontal long shape with a shorter long side than the base member 410 by a plate-shaped member made of carbon fibers, and are provided in the upper portion of the base member 410 in a lateral arrangement. Figure 5 and Figure 6 As shown in Figs. 11 to 14, the base member 410 has hook-shaped portions 411 and 412 that are provided in the upper portion at positions corresponding to both ends of the support member 421 provided, and hook-shaped portions 415 and 416 that are provided at positions corresponding to both ends of the support member 422. Furthermore, the base member 410 has indication member mounting portions 413 and 414 that are provided between the hook-shaped portion 411 and the hook-shaped portion 412, and indication member mounting portions 417 and 418 that are provided between the hook-shaped portion 415 and the hook-shaped portion 416.Figure 5 and Figure 6 In (a) of FIG. 11, the case where two indication member mounting portions are provided between the hook portion 411 and the hook portion 412 and between the hook portion 415 and the hook portion 416 is shown, but the number is not limited to this and can be one or more than three.

[0051] The support member 421 is formed in a horizontal long shape having a length of about 1 / 2 of the long side of the base member 410, as shown in (a) of FIG. 12. Figure 6 As shown in (b) of FIG. 12, the support member 421 has insertion holes 421a and 421b at both ends of the lower edge. The support member 422 also has insertion holes 422a and 422b at both ends of the lower edge. Further, by the elasticity of the carbon fiber, the hook portions are inserted into the insertion holes at both ends in a state where the lower edge is hooked to the indication member mounting portions of the base member 410.

[0052] Specifically, the installation worker inserts the hook portion 411 of the base member 410 into the insertion hole 421a at the left end of the lower edge of the support member 421. Then, the central portion of the lower edge is alternately hooked to the front surface of the indication member mounting portion 413 and the rear surface of the indication member mounting portion 414. Further, the hook portion 412 is inserted into the insertion hole 421b at the right end of the lower edge, and the support member 421 is fitted into the base member 410.

[0053] Further, the hook portion 415 of the base member 410 is inserted into the insertion hole 422a at the left end of the lower edge of the support member 422. Then, the central portion of the lower edge is alternately hooked to the rear surface of the indication member mounting portion 417 and the front surface of the indication member mounting portion 418. Further, the hook portion 416 is inserted into the insertion hole 422b at the right end of the lower edge, and the support member 422 is fitted into the base member 410.

[0054] If the support members 421 and 422 are fitted into the base member 410 as such, the hook portions 411, 412, 415, and 416 are hooked to the insertion holes 421a, 421b, 422a, and 422b, respectively. Further, the indication member mounting portions 413 and 414 are held by the lower edge of the support member 421, and the indication member mounting portions 417 and 418 are held by the lower edge of the support member 422. Thus, even if the support members 421 and 422 are pulled upward, they do not come off the base member 410 and can be installed in the base member 410 in a stable state.

[0055] A plurality of the workpiece support bodies 400 described above are arranged on the workpiece support table 3, and the workpiece W on which the machining target is placed is loaded thereon, and the heat machining for the workpiece W is performed in this state. If any of the support members is broken due to the heat machining, the worker detaches the hook-shaped portion of the broken support member of the broken workpiece support body 400 from the insertion hole and pulls it upward, and detaches it from the base member 410. Then, a new support member is hooked to the indication member mounting portion, and the hook-shaped portion is inserted into the insertion hole of the broken portion and mounted. In this way, each of the support members 421, 422 is configured to be easily attached to and detached from the base member 410.

[0056] By using such a workpiece support body 400 for the workpiece support table 3, even if the upper portion of the support member 421, 422 of the workpiece support body 400 is pinched by the molten metal of the workpiece W in the heat machining, the support member 421, 422 can be prevented from falling off from the base member 420 when the workpiece W is lifted.

[0057] The present application is not limited to the above-described embodiment, and various modifications can be made within the scope of the gist of the present application.

[0058] The disclosure of the present application is associated with the subject matter described in Japanese Patent Application No. 2020-077114 filed on April 24, 2020, the entire disclosure of which is incorporated herein by reference.

Claims

1. A workpiece support for a heat treatment machine, characterized in that, The aforementioned workpiece support body is provided on the workpiece support platform to support the workpiece to be heat-processed, and has the following features: The base component is formed from a plate-like component in a transversely elongated shape, and has a plurality of protruding indicator mounting portions spaced at predetermined intervals on its upper part; and The support member is formed from a plate-like member in a horizontally elongated shape, with its lower side alternately embedded in the front and rear surfaces of the adjacent mounting portions of the base member, and is arranged in a detachable state.

2. The workpiece support of the heat treatment machine according to claim 1, characterized in that, The aforementioned support components are made of carbon fiber.

3. The workpiece support of the hot working machine according to claim 1 or 2, characterized in that, The aforementioned support member is formed in a horizontally elongated shape with its long side shorter than that of the aforementioned base member, and multiple such support members are provided on the aforementioned base member.

4. The workpiece support of the heat treatment machine according to claim 1 or 2, characterized in that, The aforementioned support component has an insertion hole at the bottom. The aforementioned base component has a hook-shaped portion that engages with the aforementioned insertion hole.

5. The workpiece support of the hot working machine according to claim 3, characterized in that, The aforementioned support component has an insertion hole at the bottom. The aforementioned base component has a hook-shaped portion that engages with the aforementioned insertion hole.

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