JP7591440B2 - Workpiece support for thermal cutting machine - Google Patents

Description

The present invention relates to a workpiece support for a thermal cutting machine. In particular, the present invention relates to a workpiece support for a laser cutting machine.

Patent Document 1 discloses a support member for a thermal cutting machine that supports a workpiece to be processed by thermal energy. This support member includes a support table and a number of support pins that each stand up from the support table. Each support pin is made of a carbonaceous material so that the molten material of the workpiece affected by thermal energy is less likely to weld to the support pin.

Patent Document 2 discloses a support member for a thermal cutting machine that supports a workpiece to be processed by thermal energy. This support member includes a support table and a structure in which plate-shaped members each formed into a plurality of convex projections that stand up from the support table are combined in a lattice pattern.

Patent document 3 discloses a support member for a thermal cutting machine that supports a workpiece to be processed by thermal energy. This support member includes a support table and a plate-like member formed into a number of angle-shaped protrusions that each stand up from the support table. The plate-like member is formed to be easily deformed and easily attached and detached.

JP 2001-314998 A Japanese Utility Model Application Publication No. 60-171685 Patent No. 4188471

According to Patent Document 2, the number of support pins required to prevent products cut out by thermally cutting a workpiece from falling is about 100 per ^m2 . Products smaller than ^{100 cm2} will definitely fall, so more pins are needed. For example, 10,000 support pins are needed to ensure that a 4 ^cm2 product does not fall.

In order to prevent the cut product from rising up after processing, it is preferable to arrange the support pins that support the workpiece close to each other. However, if the support pins are arranged close to each other, the space between adjacent support pins becomes narrow, which creates the problem of impeding the flow of dust collection (flow of assist gas) for fumes and dust generated by the thermal cutting process. Furthermore, there is also the issue of increased costs when the number of support pins is increased.

If convex protrusions are provided on a plate-shaped (strip-shaped) member to form a grid pattern instead of using support pins to support the workpiece, the assist gas will not escape well during thermal cutting at the corners of the grid pattern, increasing the possibility of defective processing.

The convex protrusions on the plate-shaped (strip-shaped) member that supports the workpiece are changed to mountain-shaped protrusions, and these mountain-shaped protrusions are raised across the workpiece support table. This improves the escape of assist gas, but if the plate-shaped (strip-shaped) member is made of metal, there is a problem that the molten material of the workpiece will weld to the metal workpiece support member if the thermal cutting position and the apex of the mountain-shaped protrusion coincide.

If the workpiece support member is made of a carbonaceous material, the molten workpiece and the workpiece support member will not be firmly welded together, but the carbonaceous material will be sublimated by laser irradiation. If the workpiece support member is made of a pin with a sharp tip, the protrusion will have an even sharper shape.

The problem that this invention aims to solve is to prevent the cut product from rising when the thermal cutting machine cuts the workpiece, to prevent the molten material of the workpiece from welding to the workpiece support member, to prevent the protrusions from becoming sharp even when sublimated, to prevent the assist gas from escaping poorly, and to prevent high costs.

The work support of a thermal cutting machine according to one embodiment of the present invention is installed on a support table to support a workpiece to be thermally cut, and comprises a base plate that stands upright in the vertical direction, and a number of support pieces that are spaced apart from one another and are attached to the base plate, each of which supports a workpiece. Each of the support pieces is made of a plate that is smaller than the base plate and is arranged to intersect with the base plate, with the upper end of the support piece protruding above the upper end of the base plate to support the workpiece.

According to a workpiece support for a thermal cutting machine according to one embodiment of the present invention, multiple support pieces are provided so as to intersect with a base plate. Since adjacent support pieces face each other face to face, a large space can be secured between the support pieces even when the support pieces are placed close to each other.

According to one aspect of the present invention, the rise of the cut product is suppressed, the molten material of the workpiece does not weld to the workpiece support member, the protrusions do not become sharp even when sublimated, the assist gas does not escape poorly, and costs do not increase.

FIG. 1 is a diagram showing a work support of a thermal cutting machine according to the present embodiment. FIG. 2 is a diagram showing a schematic configuration of the laser processing machine according to this embodiment. FIG. 3 is an enlarged view showing a main part of the work support according to this embodiment. FIG. 4 is a cross-sectional view taken along line AA of the work support shown in FIG. FIG. 5 is a view showing the base plate shown in FIG. FIG. 6 is a diagram showing the support piece shown in FIG. FIG. 7 is a diagram illustrating the flow of collected dust on the support table. FIG. 8 is a diagram illustrating the flow of collected dust on the support table. FIG. 9 is an enlarged view showing a main part of the work support according to the first modified example. FIG. 10 is an enlarged view showing a main part of a work support according to a second modified example. FIG. 11 is an explanatory diagram showing the relationship between the workpiece and the workpiece support.

The work support of the thermal cutting machine according to this embodiment will be described below with reference to the drawings.

Figure 1 is a diagram showing a work support of a thermal cutting machine according to this embodiment. As shown in Figure 1, the work support 30 of the thermal cutting machine is installed on a support table to support the work W to be thermally cut, and includes a base plate 31 that stands upright in the vertical direction, and a number of support pieces 35 that are arranged on the base plate 31 at intervals from each other and each support the work W. Each of the support pieces 35 is made of a plate that is smaller than the base plate 31, and is arranged so as to intersect with the base plate 31. The upper end 35a of the support piece 35 protrudes upward from the upper end 31a of the base plate 31 to support the work W.

Figure 2 is a diagram showing a schematic configuration of a laser processing machine according to this embodiment. With reference to Figure 2, a laser processing machine, which is an example of a thermal cutting machine to which the work support 30 according to this embodiment is applied, will be described. In the following description, directions are defined as a left-right direction X, a front-back direction Y, and a top-bottom direction Z, but these directions are used merely for convenience of description. The left-right direction X and the front-back direction Y correspond to the horizontal direction.

The laser processing machine 1 is a processing machine that uses a laser beam to laser process a workpiece W. The workpiece W to be laser processed is a sheet-like material, typically sheet metal. The laser processing machine 1 is mainly composed of a base 2, a support table 3, a frame 4, a processing head 5, and a dust collection device 6.

The base 2 is assembled so that its length is in the left-right direction X, for example, and has a rectangular parallelepiped shape that is thin in the up-down direction Z. Guide rails extending in the left-right direction X are provided on both ends of the base 2 in the front-back direction Y.

The support table 3 is a platform for supporting the workpiece W to be laser processed. The support table 3 is composed of a frame member that is a rectangular frame body, and is fixed onto the base 2. On the support table 3, multiple workpiece supports 30 extending in the front-back direction Y are arranged at predetermined intervals in the left-right direction X. Gaps are formed between each workpiece support 30, and scraps generated during laser processing fall downward through the gaps.

The frame 4 is a gate-shaped frame and is arranged in the front-to-rear direction Y so as to straddle the support table 3. The frame 4 has a pair of side frames 41, 42 extending in the up-down direction Z, and an upper frame 43 extending in the front-to-rear direction Y. The frame 4 is configured to be movable in the left-to-right direction X by being guided by the guide rails of the base 2. A carriage (not shown) is attached inside the upper frame 43. The carriage is configured to be movable in the front-to-rear direction Y.

The machining head 5 is attached to a carriage in the upper frame 43. The machining head 5 irradiates the workpiece W with a laser beam supplied from a laser oscillator (not shown). A nozzle 51 that emits a laser beam is detachably attached to the lower end of the machining head 5. A circular opening is provided at the tip of the nozzle 51, and the laser beam is irradiated onto the workpiece W from the opening at the tip of the nozzle 51. In addition, assist gas supplied from an assist gas supply source (not shown) is sprayed from the tip of the nozzle 51. The frame 4 moves in the left-right direction X and the carriage moves in the front-back direction Y, allowing the machining head 5 to move above the workpiece W in both the left-right direction X and the front-back direction Y.

The dust collection device 6 is a device that collects fumes and dust generated during laser processing (hereinafter simply referred to as "fumes"). A space that serves as a dust collection chamber is formed inside the base 2, and the lower part of the support table 3 is connected to the dust collection chamber. An exhaust duct 61 is disposed on one of the base side surfaces extending in the left-right direction X. One end of the exhaust duct 61 is connected to the center of the base side surface, and the other end of the exhaust duct 61 is connected to the dust collection device 6. The exhaust duct 61 connects the dust collection chamber inside the base 2 to the dust collection device 6.

The dust collector 6 is equipped with an exhaust fan that is rotated by a motor. When the exhaust fan rotates, negative pressure is created inside the dust collector 6, and the air inside the support table 3 and the dust collection chamber is drawn into the dust collector 6 via the exhaust duct 61. The fumes ride on the air flow generated by the dust collector 6 (assist gas sprayed from the machining head 5), pass between each work support 30, and are collected in the dust collector 6.

The laser processing machine 1 configured in this way cuts the workpiece W placed on the support table 3 by emitting a laser beam from the processing head 5 and ejecting assist gas while moving the frame 4 and carriage in the left-right direction X and the front-back direction Y, respectively.

Figure 3 is an enlarged view of the main part of the work support according to this embodiment. Figure 4 is a view showing a cross section of the work support shown in Figure 3 taken along line AA. Figure 5 is a view showing the base plate shown in Figure 3. Figure 6 is a view showing the support piece shown in Figure 4. The configuration of the work support 30 will be described below with reference to Figures 1 and 3 to 6.

The work support 30 comprises a base plate 31 and a number of support pieces 35.

The base plate 31 is a plate-shaped member extending in the front-rear direction Y, and is made of a metal material such as steel, for example mild steel. The base plate 31 is arranged so as to straddle a pair of frame members extending in the left-right direction X on the support table 3, and both ends of the base plate 31 are fixed to the support table 3. The base plate 31 fixed to the support table 3 stands, for example, vertically. However, the base plate 31 does not necessarily have to be vertical as long as it stands in the up-down direction Z.

The base plate 31 has a plurality of first protrusions 32 each extending upward. The plurality of first protrusions 32 are provided on the upper end 31a of the base plate 31 and constitute a part of the base plate 31 (upper end 31a). The plurality of first protrusions 32 are provided at intervals from each other in the front-rear direction Y. The plurality of first protrusions 32 are formed integrally with the base plate 31 and constitute the same plane as the base plate 31.

The first protrusion 32 is a plate that is elongated along the up-down direction Z. The width direction of the first protrusion 32 corresponds to the front-rear direction Y, which is the extension direction of the base plate 31. The plate thickness direction of the first protrusion 32 corresponds to the left-right direction X, which is the plate thickness direction of the base plate 31. In this embodiment, the first protrusion 32 has a narrowed shape in which the width narrows from the middle part in the height direction toward the upper end 32a.

A first slit 34 is formed in the upper end 32a of the first protrusion 32. The first slit 34 is located in the center in the width direction of the first protrusion 32. The first slit 34 extends downward from the upper end 32a and has a certain depth. The width Wa1 of the first slit 34 corresponds to the plate thickness t2 of the support piece 35.

The support piece 35 is made of a plate smaller than the base plate 31 and is made of a carbonaceous material, for example, a carbon fiber reinforced carbon composite material. The support piece 35 has a shape that is elongated along the vertical direction Z. The width direction of the support piece 35 corresponds to the left-right direction X, which is the plate thickness direction of the base plate 31. The plate thickness direction of the support piece 35 corresponds to the front-rear direction Y, which is the extension direction of the base plate 31. The plate thickness of the support piece 35 is smaller than the width of the upper end portion 32a (the portion with the smallest width) of the first protrusion 32, and is preferably the same as or approximately the same as the plate thickness of the base plate 31. The carbon fiber reinforced carbon composite material given as an example is made of a material that can be laser cut using a laser beam. The support piece 35 is cut out of a sheet-like material by laser cutting using a laser beam.

The upper end 35a of the support piece 35 is provided with a corner 36 that forms a predetermined angle when viewed from the front perpendicular to the surface. The corner 36 is set to be convex upward. In this embodiment, the angle of the corner 36 is set to a predetermined reference angle, for example, 100° or more. The corner 36 is located at the center of the support piece 35 in the width direction, but may be located at a position offset from the center in the left-right direction X.

A second slit 37 is formed in the lower end 35b of the support piece 35. The second slit 37 is located in the center of the support piece 35 in the width direction. The second slit 37 extends upward from the lower end 35b and has a certain height. The width Wa2 of the first slit 34 corresponds to the plate thickness t1 of the base plate 31. In this embodiment, the height of the second slit 37 corresponds to the depth of the first slit 34 described above.

The support piece 35 is inserted into the first slit 34 of the first protrusion 32. At this time, the first protrusion 32 is inserted into the second slit 37 of the support piece 35. The support piece 35 holds the base plate 31 inserted into the second slit 37 from both sides, and the first protrusion 32 of the base plate 31 holds the support piece 35 inserted into the first slit 34 from both sides. In this way, the second slit 37 of the support piece 35 and the first slit 34 on the base plate 31 side are fitted together, so that the support piece 35 is attached to the upper end 31a of the base plate 31, specifically the first protrusion 32. The support piece 35 is provided so as to be perpendicular to the base plate 31.

The base plate 31 has a plurality of first protrusions 32, and a support piece 35 is provided for each of the first protrusions 32. A plurality of support pieces 35 are provided at intervals from each other in the front-rear direction Y on the upper end portion 31a of the base plate 31.

An upper end 35a of the support piece 35 protrudes upward beyond an upper end 32a of the first protrusion 32. Therefore, the workpiece W is supported by the multiple support pieces 35 lined up on the base plate 31. The workpiece W is supported by each of the support pieces 35 at the apexes of the corners 36.
I support it.

A required space is provided between adjacent support pieces 35 among the multiple support pieces 35 arranged on the base plate 31. From the viewpoint of preventing the cut-out product from standing up after cutting, it is desirable that the distance D2 between the pair of support pieces 35 located on the outermost side among the three adjacent support pieces 35 is equal to or less than the size of the smallest product after cutting. The distance D1 between adjacent support pieces 35 is determined based on the distance D2 resulting from the size of the smallest product. Specifically, the distance D1 is equal to or less than the size of the smallest product after cutting, for example 16 mm. This makes it possible to prevent the cut-out product from standing up after cutting.

The space between adjacent support pieces 35 has a height H1 from the base end of the first protrusion 32 to the corner 36 of the support piece 35. The height H1 is determined taking into account the distance D1 so that a sufficient dust collection flow can be obtained in the space between adjacent support pieces 35. For example, the height H1 is 40 mm.

With the support table 3 configured in this way, the workpiece W and the cut-out product can be supported by a plurality of workpiece supports 30 arranged at regular intervals in the left-right direction X. In addition, in each workpiece support 30, the workpiece W and the cut-out product can be supported by a plurality of support pieces 35 arranged at regular intervals along the extension direction of the base plate 31.

Figures 7 and 8 are diagrams that show the flow of dust collection in the support table. Figure 7 corresponds to a view of the support table 3 as seen from above, and Figure 8 corresponds to a view of the support table 3 as seen from the left-right direction X. Below, the operation of collecting fumes by the dust collection device 6 will be described with reference to Figures 7 and 8.

Since the exhaust duct 61 is provided in the center of the side of the base extending in the left-right direction X, when the dust collector 6 is activated, the air around the workpiece W flows toward the center of the support table 3 along the left-right direction X, passing through the gaps between the workpiece supports 30 and flowing downwards on the support table 3. The air that flows downwards on the workpiece supports 30 then flows toward the exhaust duct 61 in the front-to-back direction. Fumes generated by laser processing are guided by this air flow and reach the dust collector 6 via the dust collection chamber in the base 2 and the exhaust duct 61.

In this manner, according to the work support 30 of this embodiment, the multiple support pieces 35 are arranged perpendicular to the base plate 31. With this arrangement, the arrangement direction of the multiple support pieces 35 and the width direction of each support piece 35 are perpendicular to each other, and adjacent support pieces 35 face each other face to face. In order to suppress the rise of the cut-out product, it is necessary to arrange the support pieces 35 at a narrow pitch so that the distance between the corners 36 that directly support the cut-out product is small. However, since the adjacent support pieces 35 face each other face to face, a wide space can be secured between the adjacent support pieces 35. This makes it possible to appropriately secure the flow of dust collection that collects fumes while suppressing the rise of the cut-out product.

By increasing the width Wb2 of the support piece 35, the strength of the support piece 35 can be ensured without increasing the plate thickness of the support piece 35. Even if the width Wb2 of the support piece 35 is increased, the width of the space between adjacent support pieces 35 is not affected. Therefore, the strength of the support piece 35 against the work load can be ensured while ensuring the flow of dust collection. In addition, the strength against the work load can be controlled according to the shape or size of the support piece 35. As a result, a work support body 30 with the required strength can be realized simply by designing the support piece 35.

Each support piece 35 is made of a small plate and is attached to the base plate 31 so that the planes of the support pieces 35 are perpendicular to each other. Therefore, the left-right direction X and the up-down direction Z, which are the flow directions of the dust collection toward the dust collection chamber located below the support table 3, correspond to the in-plane directions of each support piece 35. As a result, the air flowing toward the dust collection chamber is straightened by passing through the gaps between the support pieces 35. This ensures an appropriate flow of dust collection, allowing for effective collection of fumes.

Here, as a comparative example of the work support 30 according to the present embodiment, consider a work support in which each support piece is provided at the upper end of the base plate, parallel to the base plate. In this comparative example, the width direction of the support piece corresponds to the extension direction of the base plate. In order to obtain sufficient strength against the load of the work, it is necessary to increase the width of the support piece. Also, in order to suppress the rise of the cut-out product, it is necessary to arrange the support pieces close to each other along the extension direction of the base plate. However, since the arrangement direction of the multiple support pieces corresponds to the width direction of each support piece, if the width of the support piece is increased, the space between adjacent supports becomes narrower. For this reason, it is difficult to suppress the rise of the cut-out product and ensure the flow of dust collection at the same time, but according to the work support 30 according to the present embodiment, such a problem can be solved as described above.

In addition, according to the workpiece support 30 of this embodiment, the support piece 35 that supports the workpiece W and the cut-out product is made of a carbonaceous material. This makes it possible to prevent inconveniences such as the support piece 35 melting or softening due to the laser beam, or the support piece 35 welding to the workpiece W or the cut-out product. In addition, by making the base plate 31 out of steel, the use of carbonaceous material can be limited to the support piece 35. This makes it possible to minimize the use of carbonaceous material, thereby suppressing increases in costs.

In addition, since the support piece 35 is made of a small plate, the support piece 35 can be cut out from a plate of carbonaceous material by laser processing. This allows the support piece 35 to be manufactured cheaply and simply, and the total cost of the work support 30 can be reduced.

In addition, since the base plate 31 is made of a steel plate-shaped member, it can have the same structure as existing work supports. By making it the same thickness and shape as existing work supports, compatibility can be maintained between work supports that are applied to the support table 3.

In addition, the support piece 35 has a corner 36 at its upper end 35a, so that the workpiece W and the cut product can be supported at a point. In addition, because Wb2 of the support piece 35 can be enlarged, the angle of the corner 36 can also be enlarged (for example, to 100° or more). This makes it possible to prevent the upper end 35a of the support piece 35 from becoming sharp, even if a cut is formed in the support piece 35 by the laser beam. In other words, even if a portion of the support piece 35 is sublimated by laser irradiation, it is possible to prevent the upper end 35a of the support piece 35 from becoming sharp.

According to the work support 30 of this embodiment, the support piece 35 can be easily attached to the base plate 31 by fitting the first slit 34 of the base plate 31 into the second slit 37 of the support piece 35. The base plate 31 and the support piece 35 can be restrained from falling over by the first slit 34 and the second slit 37, so that the support piece 35 can be prevented from falling over without using a fixing means or the like.

In addition, because the support pieces 35 can be attached and detached from the base plate 31, the support pieces 35 can be replaced one by one. This allows only the support pieces 35, which are maintenance parts, to be replaced, thereby reducing running costs.

In addition, because the support pieces 35 are replaceable with respect to the base plate 31, it is possible to select the shape or size of the support pieces 35. This allows support pieces 35 of an appropriate shape or size to be attached to the base plate 31 depending on the processing conditions, work size, and product size to be cut out.

In this embodiment, the multiple support pieces 35 are provided in a one-to-one correspondence with the multiple first slits 34 in the base plate 31. However, the multiple support pieces 35 may be selectively provided with respect to the multiple first slits 34.

With this configuration, the range or spacing for arranging the multiple support pieces 35 can be freely selected within the multiple first slits 34 provided in the base plate 31. This allows the arrangement of the multiple support pieces 35 to be flexibly set according to the processing conditions or the size of the workpiece and product. In addition, since the degree of freedom for the arrangement of the support pieces 35 can be increased, the initial cost at the time of introduction can be controlled.

According to this embodiment, the multiple first slits in the base plate 31 are provided in the multiple first protrusions 32. This allows the height H1 in the space between the adjacent support pieces 35 to be large. This allows the flow of dust collection to be effectively ensured.

Figure 9 is an enlarged view of the main parts of the work support according to the first modified example. The work support 30 according to the first modified example will be described with reference to Figure 9. In the work support 30 according to the first modified example, the upper end 31a of the base plate 31 is configured as a straight portion that extends linearly along the front-rear direction Y. A plurality of first slits 34 to which the support pieces 35 are attached are provided at intervals from each other on the straight portion of the upper end 31a.

According to the work support 30 of the first modified example, adjacent support pieces 35 face each other face to face, so that a sufficient space can be secured between adjacent support pieces 35. As a result, even if the height H2 in the space is reduced, the necessary dust collection flow can be secured. For example, the height H2 is 20 mm. The size of the support piece 35 in the vertical direction Z can be made compact. In addition, since the dust collection flow can be controlled according to the shape or size of the support piece 35, the desired dust collection flow can be obtained by simply designing the support piece 35. This makes it possible to ensure a dust collection flow that collects fumes while suppressing the rising of the cut-out product.

Figure 10 is an enlarged view of the main part of the work support according to the second modified example. Figure 11 is an explanatory diagram showing the relationship between the work and the work support. The work support 30 according to the second modified example will be described with reference to Figures 10 and 11. In the work support 30 according to the second modified example, any of the above-mentioned multiple first protrusions 32 is replaced with a second protrusion 33. With such replacement, one or more second protrusions 33 are provided between a pair of adjacent first protrusions 32 on the upper end 31a of the base plate 31. The second protrusions 33 are, like the first protrusions 32, plates that are elongated vertically along the vertical direction Z. However, the second protrusions 33 are higher than the first protrusions 32 and lower than the support pieces 35 attached to the first protrusions 32. The second protrusions 33 do not have the first slits 34, and the support pieces 35 are not attached to them.

According to this configuration, the upper end 31a of the base plate 31 is provided with a first protrusion 32 and a second protrusion 33, and the support piece 35 is provided only on the first protrusion 32. With this configuration, the number of support pieces 35 equipped on the work support 30 can be reduced, so the cost of the work support 30 can be reduced. In addition, a predetermined gap G is formed between the second protrusion 33 and the work W, so that welding between the steel second protrusion 33 and the work W or the cut-out product can be prevented. On the other hand, since the interval between the support pieces 35 becomes wide, there is a possibility that the cut-out product will rise. However, as shown in FIG. 11, since the second protrusion 33 exists between the adjacent first protrusions 32, by providing an appropriate gap G between the work W and the cut-out product, it is possible to prevent the cut-out product from rising excessively. This makes it possible to ensure the flow of dust collection that collects fumes while suppressing the rise of the cut-out product.

In this embodiment, the support piece 35 is perpendicular to the base plate 31. However, it is sufficient that the support piece 35 intersects with the base plate 31. For example, the support piece 35 may be inclined from a direction perpendicular to the base plate 31 to match the direction of the dust flow.

In addition, in this embodiment, a carbonaceous material is used as an example of the material constituting the support piece 35. However, non-metallic materials such as ceramics may also be used.

The method of attaching the support piece 35 to the base plate 31 is not limited to the above-mentioned method. For example, when the base plate 31 has an appropriate plate thickness, a groove of a width corresponding to the plate thickness of the support piece 35 may be provided on the upper end portion 31a (upper surface) of the base plate 31, which extends in a direction intersecting with the extending direction of the base plate 31. As a result, the support piece 35 can be attached to the upper end portion 31a of the base plate 31 by inserting the support piece 35 into the groove on the upper surface of the base plate 31. In addition, the method is not limited to providing a groove on the upper surface of the base plate 31, but a pair of protrusions spaced apart by a distance corresponding to the plate thickness of the support piece 35 may be provided on the upper surface of the base plate 31. In this case, the support piece 35 can be attached to the upper end portion 31a of the base plate 31 by sandwiching the support piece 35 between the pair of protrusions.

As described above, an embodiment of the present invention has been described, but the descriptions and drawings that form part of this disclosure should not be understood as limiting this invention. Various alternative embodiments, examples, and operating techniques will become apparent to those skilled in the art from this disclosure.

1. Laser processing machine (thermal cutting machine)
2 Base 3 Support table 30 Work support 31 Base plate 31a Upper end 32 First protruding portion 32a Upper end 33 Second protruding portion 34 First slit 35 Support piece 36 Corner portion 37 Second slit 4 Frame 5 Machining head 6 Dust collection device

Claims (8)

A base plate that is installed on the support table and stands upright in the vertical direction to support the workpiece to be thermally cut;
A plurality of support pieces are provided on the base plate at intervals from each other, each of which supports the workpiece;
Each of the support pieces is formed of a plate body smaller than the base plate and is provided so as to intersect with the base plate,
An upper end of the support piece protrudes upward from an upper end of the base plate to support the workpiece ,
The base plate is
a plurality of first protrusions provided at an upper end of the base plate at intervals from one another, each of which extends upward and to which the support piece can be attached;
At least one second protrusion is provided between a pair of adjacent first protrusions at an upper end of the base plate,
The height of the second protruding portion is higher than that of the first protruding portion and is lower than the upper end of the support piece attached to the first protruding portion.
Workpiece support for thermal cutting machines. The base plate is made of steel;
The work support of a thermal cutting machine according to claim 1 , wherein each of the support pieces is made of a carbonaceous material. Each of the support pieces includes, at an upper end portion of the support piece, a corner portion that forms a predetermined angle when viewed from the front perpendicular to the surface,
The workpiece support for a thermal cutting machine according to claim 1 or 2, wherein the workpiece is supported at the apex of the corner portion. The workpiece support of a thermal cutting machine according to claim 3 , wherein each of the support pieces is made of a material that can be laser cut by using a laser beam. The work support body for a thermal cutting machine according to claim 3 , wherein the distance between the support pieces is equal to or smaller than a minimum product size. Each of the plurality of first protrusions is provided with a first slit having a width corresponding to a plate thickness of the support piece,
Each of the support pieces is provided with a second slit at a lower end of the support piece and having a width corresponding to the thickness of the base plate.
A workpiece support for a thermal cutting machine according to any one of claims 1 to 5. The work support of the thermal cutting machine according to claim 6 , wherein the plurality of support pieces are provided in a one-to-one correspondence with the plurality of first slits, or are selectively provided with respect to the plurality of first slits. The second protrusion has a corner that is convex upward, and is capable of supporting the workpiece at the corner. The first slit is not provided.
7. A work support for a thermal cutting machine according to claim 6.

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