Auxiliary difference plate body

Abstract

To provide an auxiliary difference plate body which is used in and advantageous for a surface plate having a plurality of difference plates, when a product having a small dimension is cut.SOLUTION: An auxiliary difference plate body which has a surface plate having a plurality of difference plates where a mounted surface in which a material to be cut is mounted on its upper part is formed, and a plurality of support members for separating and supporting the plurality of difference plates, and is arranged between the difference plates arranged so as to face each other in the difference plates, wherein the auxiliary difference plate has a difference plate member and a holding member, the difference plate member has an engagement part engaged with the support member of the surface plate formed on both ends in the longitudinal direction and an engagement part engaged with the holding member formed at a predetermined position, the holding member has a fitting part which has a slightly smaller length than a gap between the difference plates arranged so as to face each other and is fit into the engagement part formed on the difference plate member, the fitting part of the holding member is fit into the engagement part of the difference plate member and is arranged between the difference plates, and the engagement part formed on the difference plate member is engaged with the support member of the front plate, and thereby can be arranged between the difference plates.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an auxiliary difference plate body that is advantageously used when cutting small-sized products from a workpiece placed on a surface plate having multiple difference plates installed in a cutting device such as a laser cutting device, a plasma cutting device, or a gas cutting device. [Background technology]

[0002] Materials to be cut, such as steel plates and stainless steel plates, are cut using cutting devices equipped with cutting torches such as laser cutting torches, plasma cutting torches, gas cutting torches, etc. In these cutting devices, the material to be cut is cut while placed on a surface plate, and after cutting is complete, the cut product is removed from the surface plate.

[0003] The surface plate may be any plate that can hold the workpiece to be cut in a substantially horizontal position. Several structures have been proposed for such a surface plate. For example, as described in Patent Document 1, a surface plate has been proposed in which a plurality of flat plates are erected to form differential plates, and these differential plates are fixed to a support member with a predetermined interval between them. In this surface plate, the upper end faces of the erected flat plates are arranged so as to be substantially flush with each other to form a mounting surface, and the workpiece is cut while placed on this mounting surface.

[0004] When cutting a workpiece using the surface plate constructed as described above, stable cutting can be achieved if the dimensions of the cut product are sufficiently large compared to the gap between the difference plates. However, when cutting a product whose dimensions are smaller than the gap between the difference plates, the cut product may fall between the difference plates or get caught on the upper end surface of the difference plates and tilt like a balance.

[0005] In particular, if the cut product is tilted, the edge of the product may protrude beyond the surface of the material being cut, causing the cutting torch to collide with the protruding part of the product and be damaged.To prevent the cut product from tilting, a cutting method may be adopted in which part of the cutting line is left uncut to keep the product and the material being cut continuous, but this requires post-processing, which is time-consuming.

[0006] In addition, a surface plate with a support surface made of expanded metal has also been put to practical use. In this surface plate, the gaps formed in the expanded metal are extremely small, so there is no risk of the cut product falling or tilting. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] JP 2021-101245 A (Patent No. 5698960) Summary of the Invention [Problem to be solved by the invention]

[0008] In cutting factories equipped with cutting equipment such as laser cutting equipment, it is common for a single cutting device to cut a wide variety of products, resulting in variations in product dimensions. For this reason, the surface plates with differential plates and the surface plates with expanded metal mentioned above each have their own issues.

[0009] For example, in the case of a surface plate using a plurality of difference plates, it is necessary to reduce the spacing between the difference plates in order to cut small-sized products, but this increases the frequency with which the cutting path when cutting the target product interferes with the difference plates, which may have a negative impact on the cutting quality. Also, while it is conceivable to adjust the spacing between the difference plates according to the dimensions of the product, lifting and moving multiple heavy difference plates is not practical in terms of workability, work time, etc.

[0010] Furthermore, in the case of a surface plate using expanded metal, the material of the mesh portion is thin, so if a large amount of energy is input, there is a problem that it can easily melt or break.

[0011] SUMMARY OF THE INVENTION An object of the present invention is to provide an auxiliary difference plate body that can be advantageously used with a general surface plate having a plurality of difference plates when cutting small-sized products. [Means for solving the problem]

[0012] In order to solve the above problems, a representative auxiliary difference plate body according to the present invention has a plurality of difference plates on the upper part of which a mounting surface for placing a workpiece to be cut is formed, and a base plate having a plurality of support members arranged in a direction intersecting the plurality of difference plates to support the plurality of difference plates at a distance, and is an auxiliary difference plate body arranged between the plurality of difference plates arranged opposite to each other, and the auxiliary difference plate body has difference plate members and holding members, and the difference plate members have locking portions formed on both ends in the longitudinal direction to be locked to the support members of the base plate, and The holding member has an engaging portion that engages with the holding member formed thereon, and the holding member has an engaging portion whose length is slightly smaller than the spacing between the opposing differential plates and that engages with the engaging portion formed on the differential plate member.The engaging portion of the holding member is engaged with the engaging portion of the differential plate member to place it between the opposing differential plates, and the locking portion formed on the differential plate member is locked to the support member of the base plate, so that the differential plate member can be raised and placed between the opposing differential plates. [Effects of the Invention]

[0013] The auxiliary difference plate body according to the present invention can be placed between opposing difference plates on a surface plate having a plurality of difference plates, and the difference plate members can separate the gap between the difference plates. By appropriately setting the number of difference plate members according to the dimensions between the difference plates and the dimensions of the product, the cut product will not fall or tilt. [Brief explanation of the drawings]

[0014] [Figure 1]10A and 10B are diagrams illustrating the configuration of an auxiliary difference plate. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] 10 is a diagram illustrating the positional relationship between a surface plate and an auxiliary difference plate. FIG. [Figure 5] 10A and 10B are a plan view and a side view illustrating the positional relationship between a surface plate and an auxiliary difference plate. DETAILED DESCRIPTION OF THE INVENTION

[0015] The configuration of the auxiliary difference plate A according to this embodiment will be described below, along with the surface plate B using this auxiliary difference plate A.

[0016] As shown in Figures 4 and 5, the base plate B has a plurality of legs 12 installed at predetermined intervals in the running direction of a cutting device (not shown) (for example, the up-and-down direction in Figure 5, hereinafter sometimes referred to as the Y direction) and in a direction perpendicular to the running direction (the left-and-right direction in Figure 4, hereinafter sometimes referred to as the X direction). A plurality of beams 13 are arranged at predetermined intervals in the Y direction between adjacent legs 12 in the X direction. In addition, support members 14 are arranged in the Y direction on the legs 12 arranged on both ends of the base plate B in the X direction, and a plurality of support members 15 are arranged in the Y direction at predetermined intervals between the beams 13 in the X direction.

[0017] A plurality of difference plates 11 are arranged in the X direction at predetermined intervals in the Y direction. Each difference plate 11 is made of a flat plate with a preset width and thickness, and is arranged in an upright position with one end face in the width direction facing up. When upright, the upper end face serves as a surface on which a workpiece (not shown) is placed.

[0018] The difference plate 11 is supported at one end in the longitudinal direction by the support member 14, and at a portion in the longitudinal direction corresponding to the support member 15, by the support member 15. However, when the dimension of the surface plate B in the X direction is small, the difference plate 11 is supported at both end in the longitudinal direction by the support member 14, and at the middle portion by the support member 15.

[0019] The surface plate B configured as described above is generally used in laser cutting devices, plasma cutting devices, and gas cutting devices, and the distance between the opposing difference plates 11 is about 50 mm to 70 mm. Therefore, if the dimensions of the cut product are smaller than twice the above dimensions, the product may fall between the difference plates 11 or tilt with the difference plates as a fulcrum, creating the risk of it colliding with the cutting nozzle or cutting torch.

[0020] The auxiliary difference plate body A of the present invention is arranged between the opposing difference plates 11 described above, and by narrowing the gap between the difference plates 11, it is possible to prevent the cut products from falling or tilting.

[0021] 1 to 3, the auxiliary difference plate body A has a difference plate member 1 and a holding member 2, and by combining these difference plate members 1 and holding members 2 in a grid pattern, the difference plate member 1 stands up and its upper end surface becomes the loading surface for the workpiece to be cut. However, it is not necessarily required that the upper end surface of the difference plate member 1 be flush with the loading surface of the surface plate B formed by the upper end surfaces of the difference plates 11, and it may be slightly lower or higher.

[0022] For example, by making the upper end surface of the difference plate member 1 slightly lower than the mounting surface of the surface plate B, a small gap is formed between the lower surface of the workpiece and the upper end surface of the difference plate member 1. As a result, slag generated when cutting the workpiece is removed along the side surface in the thickness direction of the difference plate member 1, making it possible to prevent slag from being blown up due to the lack of a gap on both sides. Therefore, even if the distance between the difference plate 11 and the difference plate member 1 is narrowed by placing the auxiliary difference plate body A between the opposing difference plates 11 of the surface plate B, the removed slag will not affect the cutting quality.

[0023] Furthermore, when the upper end surface of the difference plate member 1 is slightly lower or higher than the mounting surface of the surface plate B, the load of the cut product is received by either the upper end surface of the difference plate member 1 or the upper end surface of the difference plate 11, compared to when it is flush with the mounting surface of the surface plate B. This reduces wobbling when the workpiece is placed on it, enabling stable cutting.

[0024] The number of difference plate members 1 constituting the auxiliary difference plate body A is not limited, and can be set appropriately according to the spacing dimension between the opposing difference plates 11 and the relationship between this spacing dimension and the dimensions of the product. For example, the auxiliary difference plate body A shown in Fig. 1(a) has one difference plate member 1, and when placed on the base plate B, it is possible to divide the spacing between the opposing difference plates 11 into two. Also, the auxiliary difference plate body A shown in Fig. 1(b) is configured with two difference plate members 1, and it is possible to divide the spacing between the opposing difference plates 11 into three.

[0025] The difference plate member 1 constituting the auxiliary difference plate body A is composed of a flat plate having a length corresponding to the distance between the support members 14, 15 on the base plate B to which it is to be attached, or the distance between the support members 15, 15, and has locking portions 1a, 1b formed at both longitudinal ends. The width dimension of the difference plate member 1 is not limited, and it has a dimension such that when the auxiliary difference plate member A is attached to the base plate B, the end face can be approximately flush with the mounting surface of the base plate B.

[0026] In particular, when the locking portions 1a and 1b of the difference plate member 1 are locked to the support members 14 and 15 or the support members 15 and 15 of the base plate B, the upper end surface of the difference plate member 1 is positioned flush with, or slightly lower than, or slightly higher than, the upper end surface of the difference plate 11. For this reason, the locking portions 1a and 1b of the difference plate member 1 and the support members 14 and 15 are formed to have shapes corresponding to each other and dimensions that can realize the above-mentioned surfaces.

[0027] In this embodiment, the locking portion 1a formed at one end has a notch shape corresponding to the support member 14 formed on the base plate B, and the other locking portion 1b is formed in a groove shape corresponding to the support member 15. However, it goes without saying that the locking portion 1a may be formed at both ends of the differential plate member 1, or the locking portion 1b may be formed at both ends, depending on conditions such as the length of the base plate B in the X direction and the location to which it is to be attached.

[0028] Slots 1c for fitting the holding members 2 in the vertical direction (width direction of the difference plate member 1) are formed at predetermined positions on both ends of the lengthwise direction of the difference plate member 1. These slots 1c have a width dimension greater than the thickness of the holding member 2 and a length greater than the width of the holding member 2, allowing the holding member 2 to be easily inserted therethrough. When viewed from the top to bottom in Figure 2, an engagement portion 1d is formed between the lower end of the slot 1c and the lower end surface of the difference plate member 1.

[0029] As shown in Fig. 3(a), the holding member 2 is composed of a flat plate having a length slightly smaller than the spacing dimension between opposing difference plates 11 on the surface plate B to be placed, and a width corresponding to the dimensions of the groove 1c and engagement portion 1d formed in the difference plate member 1. A fitting portion 2a is formed in the longitudinal center of the holding member 2 by a groove cut from the end face in the width direction. In addition, as shown in Fig. 3(b), the holding member 3 has two fitting portions 3a formed by grooves cut from the end face in the width direction at positions dividing the length into approximately thirds.

[0030] The following describes the procedure for constructing the auxiliary difference plate A using the difference plate member 1 and the holding member 2 configured as described above, and the procedure for attaching the auxiliary difference plate A to the base plate B. Note that the procedures for the auxiliary difference plate A having one difference plate member 1 and the auxiliary difference plate A having two difference plate members 1 are substantially the same, so the procedure for the auxiliary difference plate A having one difference plate member 1 will be described below.

[0031] First, one differential plate member 1 is erected, and two holding members 2 are inserted into the corresponding slots 1c, and when the fitting portion 2a faces the engaging portion 1d, the fitting portion 2a is fitted into the engaging portion 1d. In this way, the auxiliary differential plate body A is formed.

[0032] Thereafter, auxiliary difference plate body A is transported to the position where it is to be attached on surface plate B, and can be positioned by inserting it between the opposing difference plates 11 and engaging locking portions 1a and 1b of difference plate member 1 with support members 14 and 15 of surface plate B. This makes it possible to divide the gap between difference plates 11 on surface plate B into two or three parts, which makes it possible to prevent cut products from falling between difference plates 11, even when cutting small products.

[0033] In particular, when the auxiliary difference plate A is placed on the surface plate B, by setting the upper end surface of the difference plate member 1 slightly lower than the mounting surface of the surface plate B, the slag generated when cutting the workpiece will not be blown up as mentioned above, and the quality of the cut surface of the product can be maintained. It is also possible to reduce wear on the difference plate member 1 during cutting.

[0034] Furthermore, since the dimensions of the holding member 2 are smaller than the dimensions of the difference plate member 1, it is possible to manufacture it by cutting it from the difference plate member 1 (see Figure 2), which reduces material costs and also makes it possible to reduce the weight of the difference plate member 1.

[0035] The auxiliary plate member A attached to the surface plate B as described above can be removed when cutting a large product. By attaching or removing it as needed depending on the work, it does not interfere with the trajectory of the cutting torch. [Industrial Applicability]

[0036] The auxiliary difference plate A of the present invention is advantageously applicable to various types of surface plates B. [Explanation of symbols]

[0037] A Auxiliary difference plate B surface plate 1. Differential plate member 1a, 1b Locking part 1c slot 1d Engagement part 2. Retaining member 2a, 3a mating part 11 Difference Plate 12 legs 13 Beam 14 Support member 15 Support member

Claims

1. An auxiliary difference plate body has a plurality of difference plates on the upper part of which a placement surface for placing a workpiece to be cut is formed, and a surface plate having a plurality of support members arranged in a direction intersecting the plurality of difference plates to support the plurality of difference plates at a distance, and is arranged between the plurality of difference plates arranged opposite to each other, The auxiliary difference plate body has a difference plate member and a holding member, the differential plate member has locking portions formed at both ends in the longitudinal direction to be locked to the support members of the surface plate, and engaging portions formed at predetermined positions to be engaged with the holding members, the holding member has a fitting portion whose length is slightly smaller than the interval between the opposing difference plates and which fits into an engaging portion formed on the difference plate member, The auxiliary difference plate body is characterized in that the fitting portion of the holding member is fitted into the engaging portion of the difference plate member to be positioned between the oppositely arranged difference plates, and the locking portion formed on the difference plate member is locked to the support member of the base plate, so that the difference plate member can be raised and positioned between the oppositely arranged difference plates.

2. 2. The auxiliary difference plate body according to claim 1, wherein when the auxiliary difference plate body is disposed between the opposing difference plates, the upper end faces of the difference plate members constituting the auxiliary difference plate body are set slightly lower or slightly higher than the mounting surfaces formed on the upper parts of the plurality of difference plates.

3. 2. The auxiliary differential plate according to claim 1, wherein the differential plate member has engaging portions formed at least at two locations spaced apart from each other.

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