JPH0542380A - Blank layout method on laser beam machine - Google Patents

Abstract

PURPOSE:To provide a laser beam machine with a cutting function and a weld ing function, to usefully utilize by welding and cutting a remainder material and to totally improve the yield of products. CONSTITUTION:Products are cut from a regular size material (step S1), a remainder material is stored in a controller 19 for memorizing shape (step S3). And, required secondary products are retrieved whether the product can be obtained from a stock or not (step S4). When the secondary products can be obtained from the stock, the secondary products are cut (step S5). When the secondary products can not be obtained, plural members are cut from plural stocks (step S10). And the feature is the blank layout method by utilizing the remainder material on the laser beam machine providing the cutting and welding functions which obtain the required secondary products by welding the cut member.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate removing method using a residual material in a laser processing apparatus having cutting and welding functions.

[0002]

2. Description of the Related Art Conventionally, a laser processing apparatus is specialized for cutting and welding, and a residual material obtained by removing a product from a workpiece of a fixed length material, for example, a dead zone on the clamp side and a product allocation. The generated unused part was generally discarded as scrap.

[0003]

By the way, in the above-mentioned conventional laser processing apparatus, since cutting and welding are specialized machines, it can be applied to both cutting and welding, which is a characteristic of laser energy. The characteristics were not fully utilized. In addition, the attachment and detachment of the plate material to and from each device becomes complicated, the installation space becomes large, and the work efficiency decreases. Since the residual material generated by cutting becomes scrap, the effective utilization means is not performed and the material cost is wasted. Even if the residual material is stored as stock material for reuse, it is processed. There are few cases where the product fits the stock material in size, and it takes time to find the stock material that fits in the size, and there is a problem that a lot of labor is required.

In order to solve the above problems, an object of the present invention is to provide laser cutting and laser welding in a single laser processing apparatus, and effectively utilize the residual material which has not been used conventionally by welding and cutting, thereby providing a total Another object of the present invention is to provide a plate removing method for a laser processing apparatus, which improves product yield.

[0005]

In order to achieve the above object, the present invention provides a laser processing apparatus having cutting and welding functions, the steps of cutting a primary product of a desired shape and size from a plate, and after cutting. A step of storing the shape dimension of the residual material work of, and a step of comparing and determining whether or not the shape dimension of the desired secondary product is obtained from the stored shape dimensions of the residual material work, If a secondary product can be obtained from the residual material at the stage of comparison and judgment, a compatible residual material work is taken out, the secondary product member is cut from the residual material work, and the secondary product member is welded to the secondary product. A plate cutting method in a laser processing apparatus is characterized in that a desired secondary product is obtained from a plate material through a step of making a product.

Further, in the present invention, when the secondary cutting work is obtained by combining the residual materials at the stage of the above-mentioned comparison and judgment, the matching residual material work is taken out and the plural secondary cutting works are joined and welded. A method for cutting a plate in a laser processing apparatus is characterized in that a desired secondary product is obtained from a plate material through a step of cutting a secondary product from a welded secondary cutting work.

[0007]

By adopting the plate removing method in the laser processing apparatus of the present invention, the laser processing apparatus having cutting and welding functions cuts the primary product from the plate material and stores the residual material work after cutting, Next, when a desired secondary product is obtained from the residual material work, a compatible residual material work is taken out from the stored residual material work, and the secondary product member is cut from the residual material work to obtain the secondary product. The parts are welded to obtain a secondary product. If a secondary cutting work is obtained by combining the remaining work from the stored remaining work, the applicable remaining work is taken out, and a plurality of secondary cutting works are joined and welded to the secondary product. Cut and get.

[0008] Thus, the residual material which has not been used conventionally can be welded and cut to obtain a secondary product, and the total product yield can be improved.

[0009]

Embodiments of the present invention will be described in detail below with reference to the drawings. The configuration of the laser processing apparatus shown in the present embodiment employs a known configuration, and therefore detailed illustration and description thereof will be omitted.

Referring to FIGS. 5, 6 and 7, the laser processing apparatus 1 is provided with a processing table 3 on which a plate material (not shown) is placed horizontally, and a position above the processing table 3 is located above the processing table 3. A processing head 5 that performs laser processing on the plate material is provided.

The processing head 5 is provided so as to be movable in the X, Y, and Z axis directions by the configuration described later. That is, an X-axis guide portion 7 extending in the X-axis direction (the horizontal direction in FIGS. 5 and 6 and the direction orthogonal to the drawing in FIG. 7) is provided above the processing table 3, and the X-axis guide portion 7 is provided. A carriage 9 extending in the Y-axis direction (the direction orthogonal to the drawing in FIG. 5, the up-down direction in FIG. 6, the left-right direction in FIG. 7) is movably supported on the portion 7 in the X-axis direction. A head carriage 11 is supported on the carriage 9 so as to be movable in the Y-axis direction.

On the head carriage 11, an elevating body 13 is movable in the vertical direction which is the Z-axis direction (vertical direction in FIGS. 5 and 7 and perpendicular to the drawing in FIG. 6) and rotatable about a vertical axis. It is provided on the (A axis). The machining head 5 is rotatably provided around the horizontal axis (B axis) below the elevating body 13, and the optical axis of the laser beam emitted from the machining head 5 is omitted although not shown. The position is slightly adjustable in the direction (C axis).

Therefore, the machining head 5 is movable in the X, Y and Z axis directions, and is capable of rotating the A and B axes and is also slightly movable in the C axis direction. The X, Y, Z, A, B, and C axes of the processing head 5 are controlled by the NC controller 15, for example. Further, the laser processing apparatus 5 is provided with a laser oscillator 17, and a mirror assembly (not shown) that guides laser light from the laser oscillator 17 to the processing head 5. The laser processing apparatus 1 has the functions of laser cutting and laser welding. That is, cutting and welding can be performed by changing the laser output conditions.

As is already understood, after the plate material is placed and fixed on the processing table 3, the processing head 5 is lowered to appropriately approach the plate material, and then the processing head 5 is moved to X,
The plate material can be cut by the laser beam or the plate materials can be welded to each other while appropriately moving in the Y axis direction, the Z axis and the A, B, and C axis directions.

Next, a method of removing a plate using the above-described laser processing apparatus 1, which is a main part of this embodiment, will be described in detail.

Referring to FIGS. 1 and 2, this embodiment shows a first embodiment, FIG. 1 is a flow chart,
FIG. 2 shows an embodiment in which the product is taken out from the residual material.

First, before entering the detailed description, the definitions of terms used in the drawings of FIGS. 1 and 2 will be described.

1. Work ... Object to be processed.

2. Standard length material: 4 feet x 8 feet, 5
It is a work such as feet x 10 feet, and the parts and products have not been cut out yet.

3. Remaining material: what remains after cutting out a member or product from a work.

4. Product ... Created by processing a workpiece,
One cohesive item with commercial value.

5. Material: A part of the product, which is a product when the materials are put together.

6. Stock material: The remaining material after cutting the product from the standard length material that is stored.

Referring to FIG. 2, first, the primary product Ws is laser-cut from the plate material W. Then, the shape of the work after cutting is stored in the control device, and the secondary product members Wa, Wb, W
It is searched whether or not c and Wd can be taken, and the secondary product member Wa-
Wd is cut. Then, the secondary product members Wa and Wb
To weld the secondary product We and the secondary product members Wc and Wd to obtain the secondary product Wf.

FIG. 1 shows the above-mentioned work and information flow.
It will be described with reference to the flowchart shown in FIG. In addition, the flow of the solid line shown in the figure shows the flow of work, and the flow shown by the broken line shows the flow of information.

First, the product is cut from the standard length material (step S1). Then, it is determined whether or not the remaining material is stored as stock material (step S2).

If YES in step S2, that is, if the residual material is to be stored as stock material, the process proceeds to step S3, the shape of the residual material is stored, and this information is stored in the stock material shape memory controller 19. To enter.

At stop S4, it is determined whether or not the secondary product can be cut from the existing stock material by the shape memory control device 1.
The stock materials stored in 9 are searched. Then, if YES, that is, if it is possible to cut from the stock material, the process proceeds to step S5 to select and cut a work from which the product can be cut. Then, step S
At 6, store the remaining material after cutting as stock material, or
If it is determined and stored, that is, if it is YES, the process proceeds to step S7, the shape dimension of the residual material after cutting is stored and stored in the shape memory control device 19, and the operation ends. ..

If NO in step S2, that is, if the remaining material cannot be stored as stock material, step S2 is performed.
Proceed to 8 and discard as scraps.

If NO in step S4, that is, if the stock material cannot be cut, step S9 is performed.
Proceeding to, the stock material stored in the shape memory control device 19 is searched for whether or not it is possible to cut the members from the stock material and weld them to make a product. As a result, YES, that is, if the product can be made by welding,
Proceeding to step S10, a plurality of members are cut from one or a plurality of stock materials.

Then, in step S11, the cut members are welded to make a product, and in step S6, it is determined whether or not the remaining material after cutting is stored as stock material. That is, in the case of YES, the process proceeds to step S7, the shape dimension of the residual material after cutting is stored, stored in the shape memory control device 19, and the operation ends.

Further, if NO in step S9, that is, if the product cannot be made by welding, step S12
In the case of bringing in a new standard length material, cutting the product in step S13, storing the remaining material after cutting as stock material in step S6, and storing it, If yes, proceed to step S7
The shape and size of the residual material after cutting are stored in the shape memory control device 19, and the operation is ended. If the remaining material is not stored as stock material in step S6, that is, N
In the case of O, it is discarded as a scrap material in step S14.

As described above, since the laser processing apparatus 1 has the functions of cutting and welding, it is possible to improve the working efficiency and cut out some members from the remaining material and weld them to the product. Since it is possible to improve the yield of plate materials.

A second embodiment is shown in FIG. 3 and FIG.
The difference from the above-described first embodiment is that in the first embodiment, the secondary cutting work is searched, the secondary product member is cut and taken out, and this secondary product member is welded to the secondary product member. It was a way to get the product. However, the second embodiment is a method of obtaining the secondary cutting work by searching for the secondary cutting work, welding the secondary cutting work, and cutting the secondary product from the welded work, and other information flows at all. This is the same as the first embodiment.

FIG. 3 is a flow chart, and FIG. 4 shows an embodiment in which a secondary cutting work is welded and a secondary product is taken out. The definitions of the terms used in the drawings of FIGS. 3 and 4 are the same as those described in the first embodiment, and therefore will be omitted.

Referring to FIG. 4, the primary product Ws is first laser-cut from the plate material W. Then, the shape of the work after cutting is stored in the control device, and the secondary cutting works Wt, Wv,
Wx is searched, the secondary cutting works Wt, Wv, and Wx are joined and welded to form a secondary cutting work Wz, and the secondary products Wf and We are cut from the secondary cutting work Wz to obtain a desired secondary work. Get the product.

FIG. 3 shows the above-mentioned work and information flow.
It will be described with reference to the flowchart shown in FIG.

First, the product is cut from the standard length material (step S101). Then, it is determined whether or not the remaining material is stored as the stock material (step S102).

If YES in step S102, that is, if the residual material is stored as stock material, the process proceeds to step S103, the shape of the residual material is stored, and this information is stored in the stock material shape memory control device 19. To enter.

In step S104, whether or not the secondary product can be cut from the existing stock material is searched from the stock materials stored in the shape memory control device 19. Then, if YES, that is, if it is possible to cut from the stock material, the process proceeds to step S105 to select and cut a work from which the product can be cut. Then,
In step S106, it is determined whether or not the residual material after cutting is stored as a stock material, and if it is stored, that is, if YES, the process proceeds to step S107, and the shape and size of the residual material after cutting is stored. Then, it is stored in the shape memory control device 19 and the operation is ended.

Steps S102 and S1
If NO in 06, that is, if the remaining material cannot be stored as the stock material, step S108 and step S114 are performed.
Proceed to and discard as scrap.

The above work and the flow of information are the same as in the first embodiment.

If NO in step S104, that is, if the stock material cannot be cut, step S1
In step 09, the stock material is welded and the stock material stored in the shape memory control device 19 is searched for whether the product can be cut and cut. As a result, YE
S, that is, if a stock material can be welded and cut to make a product, the process proceeds to step S110, and a plurality of stock materials are welded to a size suitable for the product size.

Then, in step S111, the welded stock material is cut to produce a desired product, and as described in step S106, it is judged whether or not the residual material after cutting is stored as the stock material. If it is to be stored, that is, if it is YES, the process proceeds to step S107 to store the shape and dimension of the residual material after cutting, and to store the shape storage control device 19
It is memorized in and the action is ended.

If NO in step S109, that is, if the product cannot be made by welding the stock material, the process proceeds to step S112 to bring a new fixed-size material, and the product is cut in step S113. In step S106, it is determined whether or not the remaining material after cutting is stored as stock material, and if it is stored, that is, YES.
In the case of, the process proceeds to step S107, the shape dimension of the residual material after cutting is stored in the shape memory control device 19, and the operation is ended.

As described above, the same effects as those of the first embodiment can be exhibited in the second embodiment.

The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes. For example, it is possible to utilize the nesting shape memory function of the automatic programming system in memorizing the stock material shape and determining the cutting or welding shape.

[0048]

As can be understood from the above description of the embodiments, according to the present invention, in the laser processing apparatus having the cutting and welding functions, among the remaining materials stored in the storage device, Search for and retrieve a compatible secondary product or residual material work. Then, there are a method of making a desired secondary product by laser cutting, and a method of making a secondary cutting work by laser welding a plurality of residual material works, and making a desired secondary product from this secondary cutting work.

Since it is not necessary to search for a residual material suitable for a secondary product as in the conventional case, the labor can be reduced and the residual material can be effectively used, so that the total product yield can be improved. It is possible to improve.

[Brief description of drawings]

FIG. 1 is a flow chart showing the flow of work and information of the present invention.

FIG. 2 is an explanatory diagram showing a flow created by cutting and welding a secondary product from the residual material in FIG.

FIG. 3 is a flowchart showing a work and information flow according to another embodiment of the present invention.

FIG. 4 is an explanatory diagram showing a flow of welding a residual material in FIG. 3 to make a secondary cutting work and producing a secondary product from the secondary cutting work.

FIG. 5 is a front view showing a laser processing apparatus according to an embodiment of the present invention.

FIG. 6 is a plan view of FIG.

FIG. 7 is a side view seen from the right side in FIG.

[Explanation of symbols]

 1 Laser processing device 19 Shape memory control device

Claims (2)

[Claims] 1. A laser processing apparatus having cutting and welding functions, the step of cutting a primary product of a desired shape and size from a plate material, the step of storing the shape and size of the residual material work after cutting, and the next step. The secondary product is obtained from the residual material in the step of comparing and determining whether or not the geometrical dimension of the secondary product can be obtained from the stored geometrical shape of the work of the residual material and the step of performing the comparative determination. In the case, the applicable residual material work is taken out, the secondary product member is cut from the residual material work, and the secondary product member is welded to obtain the secondary product, and the desired secondary product from the plate material is obtained. A plate cutting method in a laser processing apparatus, which is characterized by the above. 2. A laser processing apparatus having cutting and welding functions, a step of cutting a primary product having a desired shape and size from a plate material, a step of storing the shape and size of a residual material work after cutting, and a next step. The secondary cutting work is performed by comparing and determining whether the shape and dimension of the secondary product can be obtained from the stored shape and shape of the remaining material work and the residual material in the comparison and determination step. In the case of, the applicable residual material work is taken out, a plurality of secondary cutting works are joined and welded, and the secondary product is cut from the welded secondary cutting work, and then the desired secondary product is cut from the plate material. A method for removing a plate in a laser processing apparatus, which comprises: