JPH06339787A - Production of work holder for laser beam cutting - Google Patents

Abstract

(57) [Summary] [Purpose] The work holder can be manufactured in a short time to shorten the delivery time of the press product, and at the same time the work holder can be reworked in a short time when the design of the press product is changed. The purpose is to reduce the weight and improve workability. [Structure] When manufacturing a work holder 5 that holds substantially the entire portion of the work to be the pressed product 2, data of a plurality of cross-sectional shapes 2a to 2d of the pressed product 2 based on CAD data of the pressed product 2 To create data 5a to 5d of a plurality of holder-constituting panel shapes by combining the plurality of cross-sectional shape data with the shape data 8 required as a holder respectively. The flat plate-shaped panel material 9 is laser-cut based on the data to form a plurality of holder-constituting panels 5A to 5D having the shape of each holder-constituting panel, and the work-holding is performed by combining the plurality of holder-constituting panels. It is characterized in that the tool 5 is formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a work holder used for cutting with a laser beam.

[0002]

2. Description of the Related Art For example, when a plate pressing portion 1a at an outer end portion of a press-formed work 1 shown in FIG. 3 (a) is cut by a laser beam to produce a press product 2 shown in FIG. 3 (b). 4A and 4B, it is necessary to move the laser head 3 arranged close to the work 1 by a predetermined distance along a predetermined cutting line, as shown in FIGS.
In such a case, when only the lower surface of the work is held by the work holder 4 in which a large number of pins having sharp tips are erected, as is used when cutting a normal flat work with a laser beam, it is necessary to press The internal stress applied to the work is released at the time of cutting, and the cut part of the work moves laterally as shown by arrows a and b in FIG. 4 (a), or in FIG. 4 (b). There is a problem that the cutting position and the cutting quality are deteriorated by moving up and down as shown by an arrow c.

For this reason, when cutting the end of the work press-molded as described above with a laser beam, as shown in FIG. 5, the part to be the press product 2 of the work 1 is fitted over substantially the entire part thereof. The work stand 5 that supports the work 1 together, and the work stand 5 that is fitted to the portion of the work 1 that also serves as the pressed product 2 over substantially the whole thereof.
By making two kinds of work holders, which are a work holder 6 for sandwiching substantially the entire portion of the press product 2 between and, and by holding the work 1 with them and moving the laser head 3. It is necessary to perform cutting processing with a laser beam while restricting the movement of each part of the work 1.

[0004]

However, when manufacturing the work holders 5 and 6 as described above, conventionally, since it is necessary to surely sandwich almost all of the portion to be the press product 2, the normal press working accuracy measurement is performed. The procedure is the same as when making a jig, and therefore, conventionally, it took a lot of time to manufacture the work holder, which delayed the delivery of the pressed product or changed the design to the pressed product. If there is such a problem, there is a problem that it takes a lot of time to rework the work holding tool correspondingly.

Further, since the work holder manufactured by the above-mentioned conventional method is generally heavy, a crane is required to move the work holder, so that workability is poor both during preparation for use and during use, and productivity of press products is improved. It was one of the factors that hindered.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide a manufacturing method which advantageously solves the above-mentioned problems, and the manufacturing method of a laser cutting work holder of the present invention is When manufacturing a work holder that holds substantially the entire portion of a press product, data of a plurality of cross-sectional shapes of the press product is created based on CAD data of the press product, and the data of the plurality of cross-sectional shapes is created. Create a plurality of holder configuration panel shape data by combining the data of the shape required for each retainer, laser cutting a flat panel material based on the plurality of retainer configuration panel shape data, each of the above Forming a plurality of holder structure panels having a holder structure panel shape, and combining the plurality of holder structure panels to form the work holder. It is an feature.

When the plurality of holder-constituting panels are combined, they may be separable from each other.

[0008]

According to such a manufacturing method, based on the CAD data of the press product created by the CAD (Computer Aided Design) device, data of a plurality of cross-sectional shapes of the press product are created, and the data of the plurality of cross-sectional shapes are created. By combining the data of the shape required for each holder, the data of the shape of the plurality of holder constituent panels is created, and the flat panel material is laser-cut based on the data of the plurality of holder constituent panel shapes. Since a plurality of holder-constituting panels each having the shape of each holder-constituting panel are formed and then the plurality of holder-constituting panels are combined to form the workpiece holder, it is only necessary to manufacture the workpiece holder for a short time. Therefore, the delivery time of the pressed product can be shortened, and even if the design of the pressed product is changed, it is possible to respond to it. Since the holder can be reworked in a short time, and the weight of the holder is made lighter due to the multiple panels that make up the holder, a crane may be unnecessary for its movement, and it can be used both when preparing for use and during use. It is possible to improve workability and improve the productivity of pressed products.

When the plurality of holder-constituting panels are combined so that they can be separated from each other, the plurality of holder-constituting panels are moved separately when the work holder is prepared for use and when it is struck after use. Therefore, it is possible to move it more easily, and when storing the work holder, it is possible to separate the plurality of holder component panels and store them on top of each other, so that the storage space is greatly reduced as compared with the conventional case. be able to.

[0010]

Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 shows an embodiment of a method of manufacturing a work holder for laser cutting according to the present invention. In the method of this embodiment, there are two kinds of work holders 5 and work holders 6 as shown in FIG. The work holder is manufactured as follows. For example, when the work holder 5 is manufactured, the following procedure is performed.

That is, first, for example, in FIG.
For example, as shown in FIG. 3 created by the CAD device 7 as shown in FIG.
From CAD data of the pressed product 2 as shown in (b), as shown in FIG. 1 (b), data of a plurality of cross-sectional shapes 2a to 2d of the pressed product 2 are created, and then shown in FIG. 1 (c). As described above, in the data of the cross-sectional shape 2a, the combination groove 8a
By combining the data of the shape 8 required as a holder having the above, the data of the holder configuration panel shape 5a is created, and the same work is performed for the data of the other cross-sectional shapes 2b to 2d, Data for other holder configuration panel shapes 5b to 5d are also created.

Here, as shown in FIG. 1 (d), the data of the holder-constituting panel shape 5a is given to a laser processing machine so that the laser head 3 of the laser processing machine is changed to the holder-constituting panel shape 5a. By moving along, the steel plate 9 having a thickness of 1 to 3 mm as a flat panel material is laser-cut to form a holder constituting panel 5A having the above-mentioned holder constituting panel shape 5a. The same operation is performed on the data of the holder configuration panel shapes 5b to 5d to form other holder configuration panels 5B to 5D.

Thereafter, as shown in FIG. 1 (e), the combination grooves 8a of the plurality of holder component panels 5A to 5D are fitted to each other so that they can be separated later, so that the plurality of grooves 8a can be separated. The work holder 5 is formed by combining the holder configuration panels 5A to 5D. Further, the work holder 6 is also manufactured by the same procedure as in the case of the work stand 5.

According to the manufacturing method of this embodiment, the work holders 5 and 6 can be manufactured in a short time (1/10 or less of the conventional time).
Since it is only necessary, the delivery date of the press product can be shortened, and the work holders 5 and 6 can be reworked in a short time corresponding to the design change of the press product. , For example, holder configuration panels 5A-5D
Since it is composed of multiple holder configuration panels and the weight is light, it can eliminate the need for a crane to move it, improve workability both during preparation for use and during use, and improve productivity of press products. be able to.

Further, according to the manufacturing method of the above-mentioned embodiment, since the plurality of holder constituting panels such as the holder constituting panels 5A to 5D are separable from each other when they are assembled, the work holders 5 and 6 are prepared for use and Since the plurality of retainer component panels can be moved separately when the work holders are used, the plurality of retainer component panels can be moved more easily, and the plurality of holders can be held when the work holders 5 and 6 are stored. Since the component panels can be separated and stored on top of each other, the storage space can be significantly reduced (down to 1/20 or less).

Although the present invention has been described above based on the illustrated example, the present invention is not limited to the above-mentioned example. For example, when the work holder is continuously used for a long period of time, the plurality of holders are held. The workpiece holder may be formed by inseparably coupling and combining the tool component panels. As the flat panel material for forming the holder-constituting panel, an aluminum plate, another metal plate, a resin plate or the like may be used in addition to the above steel plate. When forming the work holder, other functional components such as locate pins and other panels such as scrap receivers may be combined with the holder-constituting panel as required.

[0017]

As described above, according to the method of manufacturing a work holder of the present invention, since it takes only a short time to manufacture the work holder, it is possible to expedite the delivery of the press product and change the design of the press product. Even if there is a problem, the work holder can be reworked in a short time correspondingly, and since the weight is lightened by multiple holder configuration panels, a crane can be unnecessary for its movement. In addition, workability can be improved during preparation for use and during use, and the productivity of pressed products can be improved.

If the plurality of holder-constituting panels are separable from each other, the plurality of holder-constituting panels are moved separately when the work holder is ready for use and when the holder is used. Therefore, it is possible to move it more easily, and when storing the work holder, it is possible to separate the plurality of holder component panels and store them on top of each other, so that the storage space is greatly reduced as compared with the conventional case. be able to.

[Brief description of drawings]

1 (a) to 1 (e) sequentially show an embodiment of a method for manufacturing a work holder for laser cutting according to the present invention.

FIG. 2 is a perspective view showing a work holder manufactured by the method of the above embodiment.

3A and 3B are perspective views showing a workpiece to be laser-cut and a press product formed by the processing.

4 (a) and 4 (b) are explanatory views showing movements of a work due to release of internal stress during laser cutting.

FIG. 5 is a cross-sectional view showing a work holder for restricting the movement of the work.

[Explanation of symbols]

 1 Work 1a Plate holding part 2 Pressed product 2a to 2d Cross-sectional shape 3 Laser head 5 Work stand 5a to 5d Holder configuration panel shape 5A to 5D Holder configuration panel 6 Work retainer 7 CAD device 8 Shape required as a retainer 8a Groove for combination 9 Steel plate

Claims (2)

[Claims] 1. When manufacturing a work holder that holds substantially the entire portion of a work to be a pressed product, data of a plurality of cross-sectional shapes of the pressed product is created based on CAD data of the pressed product, Create a plurality of holder configuration panel shape data by combining the shape data required as a retainer with the plurality of cross-sectional shape data, and a flat panel material based on the plurality of retainer configuration panel shape data. Laser cutting, wherein a plurality of holder component panels having the shape of each holder component panel are formed by laser cutting, and the workpiece holder is formed by combining the plurality of holder component panels. Work holder manufacturing method. 2. The method for producing a workpiece holder for laser cutting according to claim 1, wherein the plurality of holder-constituting panels are made separable when assembled.