JP5136023B2 - Nesting device, plate material cutting method and plate material cutting device - Google Patents

Description

  The present invention relates to a nesting apparatus that performs nesting when processing is performed by a plate material cutting apparatus such as a punch press or a laser processing machine, and a plate material cutting method and a plate material cutting apparatus.

  When cutting a plurality of component plate materials from a material plate material by a plate material cutting processing device such as a punch press, the automatic programming device for the processing performs nesting, which is a process for determining the arrangement of the plurality of component plate materials with respect to the material plate material. .

As shown in FIG. 5A, in the punch press, a cutting allowance d that becomes a punching hole by the punch tool is generated around each component plate material w. In laser processing, it is finer than a punch press, but a cutting allowance d is required.
Conventionally, in the nesting apparatus, in order to improve the yield, the cutting allowance d as described above is proposed to be arranged in common for the component plate materials w arranged next to each other as shown in FIG. (For example, Patent Documents 1 and 2).
JP-A-5-61515 Japanese Patent No. 3204161

As shown in FIG. 5B, when nesting with a common cutting allowance d is performed, it is excellent in terms of yield improvement. However, by arranging the cutting allowance d in common, the cut traces A of the plurality of component plate materials w become continuous openings.
If the continuous cut trace A becomes too large, the rigidity of the material plate material W is excessively lowered during processing, and when processing while moving the material plate material W, there is a problem that processing accuracy is deteriorated. For example, in a punch press or the like, one side of the material plate material W is gripped by a plate material feeding device, and the material plate material W is moved with respect to the processing head for processing. When such a plate material moves, if the rigidity of the material plate material W is low, the processing accuracy deteriorates.

  An object of the present invention is to provide a nesting device, a plate material cutting processing method, and a plate material cutting processing device capable of suppressing a decrease in processing accuracy due to a decrease in rigidity of a raw material plate material while improving yield by sharing a cutting allowance. .

The nesting device according to the present invention performs a process of cutting a plurality of component plate materials (w) from a material plate material (W) by a plate material cutting device (1) in which a cutting allowance (d) is generated along a cutting line (L). A nesting device for determining the arrangement of a plurality of component plate materials (w) with respect to the material plate material (W),
Nesting request information reading means (21) for reading nesting request information (F2) including information on the shape and number of each component plate material (w) to be arranged, and each component plate material (w) of this read nesting request information (21) ), And nesting means (23) for arranging the figure of the material plate material (W) according to the set nesting rule (R).
As the setting nesting rule (R), a cutting allowance common rule for providing a cutting allowance (d) required around the figure of the component board material (w) in common for the figure of the component board material (w) arranged adjacent to each other. (R2) and the cutting allowance (d) are provided in common to calculate the size of the continuous figure (G) in which the figure of the plurality of component plate materials (w) becomes one continuous figure. as the magnitude of G) is within the set limit value (M), the cut allowance common rule (R2) without the parts batchwise commonality of cut allowance by, and the cut allowance common rule (R2 ) And a common use restriction rule (R3) that leaves the component plate material (w) arranged by making the cutting allowance (d) common . When the size of the continuous figure (G) exceeds the set limit value (M), the common restriction rule (R3) is the continuous figure (w) among the figures of the component board members (w) arranged adjacent to each other. G), the cutting allowance (d) according to the cutting allowance sharing rule (R2) is determined only for the figure of the plate material part whose size of the continuous figure (G) falls within the set limit value (M). The rules for not sharing the cutting allowance (d) for the figure of the remaining plate part (w) are made common.
The “size of the continuous graphic (G)” may be the area of the continuous graphic (G) or the length in any direction of the continuous graphic (G).

According to this configuration, the cut allowance (d) necessary around the figure of the component board material (w) is commonly used for the figure of the component board material (w) arranged adjacent to each other according to the common rule for cutting allowance (R2). Therefore, the cutting allowance (d) can be reduced and the yield is improved. Moreover, the size of the continuous figure (G) in which the figure of the plurality of component plate materials (w) becomes one continuous figure by providing the common cutting allowance (d) according to the common restriction rule (R3) is calculated. and, as the magnitude of this continuous graphic (G) is within the set limit value (M), the cut allowance common rule (R2) for preventing part partial effected commonality of cut allowance by Further, it is possible to avoid a decrease in the rigidity of the material plate material during processing due to the occurrence of a large continuous opening, and it is possible to prevent a decrease in processing accuracy due to the decrease in rigidity.

The plate material cutting method of the present invention is a method of cutting a plurality of component plate materials (w) from a material plate material (W) by a plate material cutting apparatus (1) in which a cutting allowance (d) is generated along a cutting line (L). In the cutting method of the plate material to be performed, the necessary cutting allowance around the component plate material (w) is arranged in common for the component plate material (w) arranged next to each other, and the component plate material (w) is cut in principle. And by arranging the cutting allowance (d) in common, the size of the continuous opening in which the cut traces of the plurality of component plate materials (w) become continuous openings is within the set limit value (M). common part partial manner without the cut margin (d), and wherein the cut parts plate material so as commonality of performing parts plate material (w) is produced in the cut margin (d) (w). Specifically, if the size of the continuous opening in which the cut marks of the plurality of component plate materials (w) are continuously opened by arranging the cutting allowance (d) in common exceeds the set limit value (M), Among the component plate materials (w) to be arranged, the plate material component (w) in which the size of the continuous opening falls within the set limit value (M) by making the cut-off allowance (d) common. ) Only for the cutting allowance (d), and for the remaining plate material component (w), the component plate material (w) is cut without sharing the cutting allowance (d). The “size of the continuous opening” may be the area of the continuous opening or the length in any direction of the continuous opening.
In the case of the method of the present invention, as for the component plate materials (w) arranged adjacent to each other, in principle, the cutting allowance (d) is arranged in common, so the cutting allowance (d) can be reduced and the yield is improved. Further, by arranging the cutting allowance (d) in common, the size of the continuous opening in which the cut traces of the plurality of component plate materials (w) become continuous openings falls within the set limit value (M). for cutting the commonality of parts amount to parts plate material without the cut margin (d) (w), the rigidity reduction of the raw plate material during processing can be avoided, lowering of machining accuracy due to reduction in rigidity can be prevented.

The plate material cutting apparatus (1) of the present invention includes a processing machine main body (2) that performs cutting processing in which a cutting allowance (d) occurs along a cutting line (L), and a processing control that controls the processing machine main body (2). A plate cutting apparatus (1) provided with an apparatus (3),
The processing control device (3) executes a processing program (4) for causing the processing machine body (3) to perform processing of cutting a plurality of component plate materials (w) from the material plate material (W). The program (4) cuts the component plate material (w) by arranging the necessary cutting allowance (d) around the component plate material (w) and arranging the component plate materials (w) adjacent to each other in common. However, by arranging the cutting allowance (d) in common, the size of the continuous opening in which the cut marks of the plurality of component plate materials (w) become continuous openings is within the set limit value (M). common part partial manner without the cut margin (d), and characterized in that it comprises a control content to cut parts plate material (w) as component plate occurs to perform the sharing of the cut margin. Specifically, among the figures of the component plate materials (w) that are arranged adjacent to each other, by making the cut-off allowance (d) common, the size of the continuous opening is within the set limit value (M). The cutting material (w) is made common only to the plate material component (w) that fits in the component plate material (w), and the remaining plate material component (w) is made the component plate material (w) without making the cutting material (d) common. Is the control content to cut off.
In the case of the inventive device as well, as for the component plate materials (w) arranged adjacent to each other, the cutting allowance (d) is arranged in principle, so that the cutting allowance (d) can be reduced and the yield is improved. Further, by arranging the cutting allowance (d) in common, the size of the continuous opening in which the cut traces of the plurality of component plate materials (w) become continuous openings falls within the set limit value (M). to cut without cut allowance (d) is in part batchwise, stiffness reduction of the raw plate material during processing can be avoided, lowering of machining accuracy due to reduction in rigidity can be prevented.

The nesting device of the present invention determines the arrangement of a plurality of component plate materials relative to the material plate material as data for performing a process of cutting a plurality of component plate materials from the material plate material by a plate material cutting processing device in which a cutting allowance is generated along the cutting line. A nesting device, which is a nesting request information reading means for reading nesting request information including information on the shape and the number of each component plate material to be arranged, and a figure of each component plate material of the read nesting request information according to a set nesting rule A nesting means arranged with respect to the figure of the material board, and as the set nesting rule, a cutting allowance provided around the figure of the part board arranged adjacent to each other is provided as a cutting allowance necessary around the figure of the part board A common rule and a cutting allowance are provided in common. Graphic component plate calculates the size of the continuous shape which is one of continuous shapes, such that the magnitude of the continuous geometry falls within the set limits, common tear-off margin due to the cut margin common rules the part content to without, and to include a common restriction rules leave parts plate material is arranged by performing the sharing of cut allowance by the cut margin sharing rules, aims to yield improvement by standardizing cut allowance However, it is possible to suppress a decrease in processing accuracy due to a decrease in rigidity of the material plate material.

The plate material cutting method according to the present invention is a plate material cutting method for performing a process of cutting a plurality of component plate materials from a material plate material by a plate material cutting processing device in which a cutting allowance is generated along a cutting line. For component board materials that are placed next to each other, in principle, they are arranged in common to cut out the component board material, and by arranging the cutting allowance in common, an opening in which a plurality of component board materials are cut out is continuous. method of making such a size of the continuous opening is within the set limits, the without commonality of cut allowance in part batchwise, and cut parts plate material as part sheet to perform standardization of the cut margin occurs Therefore, it is possible to suppress a decrease in machining accuracy due to a decrease in the rigidity of the material plate material while improving the yield by sharing the cutting allowance.

The plate material cutting apparatus according to the present invention is a plate material cutting apparatus including a processing machine main body that performs a cutting process in which a cutting allowance is generated along a cutting line, and a processing control device that controls the processing machine main body, wherein the processing control The apparatus executes a machining program that causes the processing machine body to cut a plurality of component plate materials from the material plate material, and this machining program arranges the necessary cutting allowances around the component plate materials adjacent to each other. The parts plate materials to be cut are cut by arranging them in common, but the size of the continuous opening where the cut marks of multiple component plate materials become continuous openings can be set by placing the cut allowance in common. to fit within the value, the cut allowance common part partial manner without the, and cut parts plate material as part sheet to perform standardization of the cut margin occurs braking For containing the contents, while reducing the yield improvement by sharing the cut margin, it is possible to suppress a decrease in machining accuracy due to reduction in rigidity of the material work sheet.

  An embodiment of the present invention will be described with reference to FIGS. A plate material cutting apparatus 1 used in this plate material processing method is a device that performs a process of cutting a plurality of component plate materials w from a material plate material W, and a processing machine body 2 that performs the cutting process and a process that controls the processing machine body 2. It consists of a machine control device 3. The processing machine body 2 is a device that performs processing that generates a cutting allowance d that becomes a fusing part by laser processing along the width of the punch tool along the cutting line L, such as a punch press, a laser processing machine, or a combination machine of both. Consists of. The processing machine control device 3 includes a computer-type numerical control device that decodes and executes the processing program 4. This nesting device is provided in an automatic programming device 5 that generates the machining program 4.

FIG. 2 is a plan view showing an example of the processing machine body 2 and shows an example of a punch press. The processing machine main body 2 includes a processing head 6 that is installed on a frame 16 and performs cutting processing, and a plate material feeding device that moves a material plate material W forward, backward, left and right on a table 7 with respect to a processing position P by the processing head 6. 8 is provided.
The machining head 6 includes a ram for raising and lowering the punch tool and a raising / lowering drive source (not shown) for the ram. A plurality of punch tools are mounted on a tool indexing mechanism 17 such as a turret, and an arbitrary punch tool is indexed at the processing position P. In the case of a laser processing machine, the processing head 6 is a laser irradiation head.
The plate material feeder 8 is provided with a cross slide 10 that moves in the left-right direction on a carriage 9 that moves in the front-rear direction (Y direction), and a work holder 11 that holds one side of the material plate material W on the cross slide 10. Is provided. The carriage 9 and the cross slide 10 are driven forward and backward through the ball screw mechanisms 14 and 15 by the servo motors 12 and 13 of the respective axes.

  In FIG. 1, an automatic programming device 5 comprises a computer (including an operation system) and programs and data (not shown) to be executed by the computer, and includes nesting request information reading means 21, tool placement means 22, nesting means 23, and execution. NC data converting means 24 and a tool master file 25 are provided.

The nesting request information reading means 21 is means for reading the material shape information F1 and the nesting request information F2 from the outside of the automatic programming device 5 or from storage means (not shown) in the automatic programming device 5.
The material shape information F1 is, for example, information describing dimensions in the left-right direction (X direction) and the front-rear direction (Y direction) of the rectangular material plate material W. The material shape information F1 may be set as a constant value in the nesting means 23 or the like, and reading from the nesting request information reading means 21 may be unnecessary.
The nesting request information F2 is information on identification information, shape, plate thickness, material, and number of pieces of component plate materials w that are only subjected to nesting at once. Information on the shape of each component plate material w is component plate material shape information F2a indicated by line data or the like, and the nesting request information F2 is composed of a collection of a plurality of component plate material shape information F2a and information on the number of pieces.

  The tool arrangement means 22 is a means provided when the plate material cutting apparatus 1 is a punch press. As shown in FIG. 3, the tool placement means 22 places the punch tool T according to a set tool placement rule (not shown) along the line L of each side indicating the outer periphery of the component plate material w in the component shape information F2a. It is means to do. In the figure, the hatched portion shows the punching area of one punch tool T. When the length of the line L on the side of the component plate material w is longer than the width of the punch tool T, a plurality of punch tools T are arranged along the line L. Generally, the same punch tools T are arranged side by side for the same line L. The arrangement of the punch tool T indicates that the punch tool T is positioned at the illustrated position relative to the component plate material w by moving the component plate material w. An arrangement portion of the punch tool T along the line L of the component plate material w is a cutting allowance d. Thus, information on the result of arranging the punch tool T on each component plate material w is tool arrangement result information F3.

  In FIG. 1, the tool master file 25 is a means that stores the tool number of each punch tool T and the information of the punching shape of the tool in association with each other, and the tool placement means 22 is registered in the tool master file 25. The punch tool T to be arranged is selected from the inside.

  The nesting means 23 is a means for arranging the figure of each component board material w of the nesting request information F2 read by the nesting request information reading means 21 with respect to the figure of the material board material W according to the set nesting rule R. When all the component plate materials w included in the nesting request information F2 cannot be arranged on one material plate material W, the component plate materials w are arranged on a plurality of material plate materials W. The nesting means 23 may arrange the figure of the component board material w on which the punch tool T is arranged in the punch arrangement result information F3 as shown in FIG. The tool placement means 22 may perform tool placement after nesting.

  The execution NC data converting means 24 is means for converting the nesting result information F4 nested by the nesting means 23 into a machining program 4 in a format that can be executed by the machining control device 3. The machining program 4 describes, in order of execution, an instruction for causing the tool indexing mechanism 17 to select the punch tool T, an instruction for causing the plate material feeding device 8 to move the material plate material W, an instruction for causing the machining head 6 to perform a machining operation, and the like. It is a program and is described by a predetermined NC code or the like.

The nesting rules R set by the nesting means 23 include an array direction rule R1, a cut-off sharing rule R2, a sharing restriction rule R3, and other rules R4.
The arrangement direction rule R1 is, for example, a rule for arranging the component plate materials w in order from a position close to the origin position O of the material plate material W to a position far from the origin position O.
As the other rule R4, there is a rule of disposing within a range inward by a set dimension from the outer periphery of the material plate W.

  The cutting allowance sharing rule R2 is a rule for providing the necessary cutting allowance d around the figure of the component board material w, and for the figure of the component board material w arranged adjacent to each other, for example, as shown in FIG. It is. In this embodiment, the cutting allowance d is a portion where the punch tool T is disposed. In the figure, nine component plate materials w are arranged in three rows in each of the vertical and horizontal directions, and a cutting allowance d between the rows is provided in common (that is, shown in an overlapping manner).

The common restriction rule R3 calculates the size of a continuous figure G in which a figure of a plurality of component plate materials w becomes one continuous figure by providing a common cutting allowance d. to fit set limit value in the M, a rule that is not performed commonality of cut allowance d by the cut allowance common rule R3 in part batchwise. Specifically, this common restriction rule R3 is, when the size of the continuous figure G exceeds the set restriction value M, among the figures of the component board material w to be arranged adjacent to each other, as the continuous figure G, Only the figure of the plate part whose size of the continuous figure G falls within the set limit value M is made common to the cut allowance d by the cut allowance common rule R2, and the figure of the remaining plate part w , A rule that does not make the cutting allowance d common.
In the common restriction rule R3, when there are four or more figures of the adjacent component plate material w, and all of them are made into the continuous figure G by the common use of the cutting allowance d, the size of the continuous figure G is the set restriction value M. In the case where the number of continuous figures G is exceeded, a plurality of continuous figures G in which the cutting allowance d is made common between any adjacent component plate materials w with a reduced number of continuous parts, and the size of each continuous figure G exceeds the set limit value M It is good also as a rule not to have. In addition, the common restriction rule R3 sets the continuous figure G as large as possible within a range not exceeding the set limit value M when the number of continuous figures is reduced when the size of the continuous figure G exceeds the set limit value M. It may be a rule.

The continuous figure G is a figure in which, for example, as shown in FIG. 4A, all nine component plate materials w are arranged so that the cutting allowance d is shared.
The “size of the continuous graphic G” may be the area of the continuous graphic G or the length in any direction of the continuous graphic G, but in the illustrated example, the horizontal direction The length is (X direction).
Further, in the common restriction rule R3, when the set limit value M is exceeded, the portion where the cut allowance d according to the cut allowance common rule R2 is not shared is the portion of the continuous figure G that is farther from the material origin position O. As part. Further, the sharing of the cutting allowance d by the cutting allowance sharing rule R2 is not performed only in the direction (X direction) to be determined as the size of the continuous figure G, and in the other direction (Y direction). ) Applies the cutting allowance sharing rule R2.

In the example of FIG. 4A, the continuous graphic G is the set limit value M when the right part of the component plate material w of the three rows of component plate materials w in the left-right direction is viewed from the material origin position O side. It becomes a part exceeding.
For this reason, the nesting means 23 arranges the component plate material w as shown in FIG. 4B by using both the cutting allowance common rule R2 and the common restriction rule R3. That is, for the six component plate members w in the left two rows that are within the set limit value M, the cutting allowance d is made common in all places, but one right end column that is a portion exceeding the set limit value M and its neighbor. With respect to the row, the cut-off allowance d is not made common, and the cross-shaped blank plate member portion Wa is left between the cut-off allowances d of each row. The cutting allowance d is shared between the right and left rows of component plate materials w arranged in the front-rear direction.

As a result of nesting as described above, according to the plate material cutting apparatus 1 and the plate material cutting processing, the following processing is performed. That is, the necessary cutting allowance d around the component plate material w is arranged in common for the component plate materials w arranged adjacent to each other, and the component plate material w is cut out, and the cut allowance d is arranged in common. Accordingly, when the size of the continuous opening in which the cut traces of the plurality of component plate materials w are continuous openings exceeds the set limit value M, the cutting allowance d is not made common for the portion exceeding the set limit value M. The component board material w is cut out.
In this way, the component plate materials w arranged adjacent to each other are arranged in common with the cutting allowance d in principle, so that the cutting allowance d can be reduced and the yield is improved. Further, by arranging the cutting allowance d in common, the cutting allowance d is shared for the portion where the size of the continuous opening where the cut traces of the plurality of component plate materials w are continuous exceeds the set limit value M. Since the component plate material w is cut out without causing a decrease in the rigidity of the material plate material W during processing, a decrease in processing accuracy due to the decrease in rigidity is prevented.

It is a conceptual diagram which shows the nesting apparatus and board | plate material cutting method and cutting device which concern on one Embodiment of this invention. It is a top view of the processing machine main body of the board | plate material cutting processing apparatus. It is explanatory drawing of the example of tool arrangement | positioning. It is explanatory drawing which shows the sharing of a cutting allowance, and its restriction | limiting. It is explanatory drawing of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Plate material cutting device 2 ... Processing machine main body 3 ... Processing machine control device 4 ... Processing program 5 ... Automatic programming device 21 ... Nesting request information reading means 22 ... Tool placement means 23 ... Nesting means d ... Cutting allowance F2 ... Nesting request Information F3 ... Tool arrangement result information G ... Continuous figure L ... Cutting line R ... Setting nesting rule R2 ... Cutting allowance common rule R3 ... Common restriction rule T ... Punch tool W ... Material plate material Wa ... Cross-shaped material plate material portion w ... Part board

Claims (3)

A nesting device that determines the arrangement of a plurality of component plate materials relative to the material plate material as data for performing a process of cutting a plurality of component plate materials from the material plate material by a plate material cutting processing device in which a cutting allowance occurs along the cutting line,
Nesting request information reading means for reading nesting request information including information on the shape and number of each component plate to be arranged;
Nesting means for arranging the figure of each component board material of the read nesting request information with respect to the figure of the material board material according to a set nesting rule,
As the setting nesting rule, a cutting allowance common rule for providing a cutting allowance necessary around the figure of the component board material in common for the figure of the component board material arranged adjacent to each other,
By providing a common cutting allowance, calculate the size of a continuous figure in which the figure of a plurality of component board materials becomes one continuous figure, and cut the cutout so that the size of this continuous figure falls within the set limit value. cash on common common part partial manner without I such made of cut allowance by rules and look including a common restriction rules leave parts plate material is arranged by performing the sharing of cut allowance by the cut allowance common rules ,
A nesting device characterized by that. In the plate material cutting processing method for cutting a plurality of component plate materials from the material plate material by the plate material cutting processing device in which a cutting allowance is generated along the cutting line,
As for the component plate materials that are arranged adjacent to each other, the component plate materials that are arranged next to each other are arranged in common, cut the component plate materials, and arrange the cut margins in common to arrange multiple component plate materials as cut marks the size of the continuous opening a continuous opening is within the set limits, without standardizing the cut allowance in part batchwise, and component plate to perform sharing of the cut margin is A plate cutting method characterized by cutting a component plate so as to occur . A plate material cutting apparatus including a processing machine main body that performs a cutting process in which a cutting margin occurs along a cutting line and a processing control device that controls the processing machine main body,
The processing control device executes a processing program for causing the processing machine body to perform a process of cutting a plurality of component plate materials from the material plate material. For component board materials to be arranged together, the parts plate material is cut out in common, but the size of the continuous opening in which the cut traces of a plurality of component board materials become continuous openings by arranging the cutting allowance in common characterized so they fit within set limits, to include a control content in which the common part partial manner without the cut margin, and cut parts plate material as part sheet to perform standardization of the cut margin occurs A plate material cutting device.

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