JP4109729B2 - Parts tracking control method and apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a parts tracking control method and apparatus, and more particularly, to a parts tracking control method and apparatus suitable for cutting a plurality of parts from the same material and performing the next processing.
[0002]
[Prior art]
Conventionally, in the sheet metal line equipment 101 as shown in FIG. 7, the material W loaded on the plate material pallet 103 is taken out one by one by the single picking device 105 and is carried into the shearing machine 107. In this shearing machine 107, the material W is cut into a predetermined shape and is carried into a next process machine 109 such as a punch press, a bender, a laser machine, etc., and a desired process is performed. Accumulate.
[0003]
Therefore, when a large number of pieces are taken from the material W as shown in FIG. 8, each part separated by the shearing machine 107 is sequentially conveyed to the next process machine 109 and processed. It is common.
[0004]
[Problems to be solved by the invention]
However, in such a conventional technique, if a single piece of material W to be cut is mixed with vertically long parts, horizontally long parts, parts of various dimensions, etc., the sheet metal line There is a problem that it is difficult for the equipment supervisor to determine which part is currently being transported, and in what order the parts are being transported, and cannot be confirmed.
[0005]
In addition, there is a problem that man-hours are required for confirmation of setup work in a next process machine such as a punch press and confirmation of part sorting work at the end of the line.
[0006]
Further, when a plurality of parts are cut off as shown in FIG. 8 during offline operation, there is a problem that it is difficult to process parts after being separated from the material W into parts.
[0007]
The object of the present invention has been made by paying attention to the conventional techniques as described above, and the subsequent processing and sorting can be reliably performed by ensuring the identification marks of the parts nested in a complicated manner. It is an object of the present invention to provide such a part tracking control method and apparatus.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the part tracking control method according to the first aspect of the present invention specifies a material by nesting the material and grouping the parts into blocks each having a vertically long part and a horizontally long part, and the material. Parts information including sheet name, block ID that identifies grouped blocks, coordinates of reference points indicating block positions, part IDs that identify parts in this block, and coordinates of reference points of each part A second step of storing the information in the memory every time, and a third step of comparing the part information stored in the memory with the part information in the sheet processing program for performing contour cutting, and by using nesting, the vertically long parts in the material And horizontal parts are mixed, each part is identified, and the part contour is cut with the long side shear and the short side shear to confirm the part. It is not a part tracking control method characterized in that to work after the disconnection processing of the part.
[0009]
According to a second aspect of the present invention, there is provided a parts tracking control device for nesting a material, nesting means for grouping the nested parts into blocks for each of a vertically long part and a horizontally long part, and specifying the material obtained by the nesting means. Parts information including sheet name, block ID for identifying grouped blocks, coordinates of reference points indicating block positions, part IDs for specifying parts in this block, and coordinates of reference points of each part It has a memory to store for each material, and an information collation means for collating the part information of each part stored in this memory with the part information in the sheet cutting program for contour cutting, If both vertical and horizontal parts are mixed, each part is identified and the long side In short sides Shah to confirm the part performs part contour cutting a work part tracking controller for after the disconnection processing of the part.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0011]
FIG. 1 shows the contents of a parts tracking control device 1 according to the present invention. That is, in the host controller 3, nesting means for nesting small parts on the material using graphic data input from the input means 5, specification data of each processing machine stored in the memory 7, or the like. The nesting system 9 is provided. The nesting system 9 creates a sheet processing schedule 11, a sheet processing program 13, a part processing program 15, and a plate cutting sheet part configuration information 17.
[0012]
Here, the sheet processing schedule 11 determines the processing schedule used in the shearing machine 31 and the order of processing performed in the next process machine 19.
[0013]
Further, referring to FIG. 4, the sheet processing program 13 is a program for performing contour shearing of each part in the shearing machine 31 when, for example, cutting as shown in FIG. The order and contents of processing performed by controlling the machine 31 and the next process machine 19 are shown. The sheet processing program 13 is automatically created by the nesting system 9 and stored in the memory. Or you may make it create and input manually.
[0014]
The parts processing program 15 is the same as the above-described sheet processing program 13, and is a program for processing each part in the next process processing machine 19 such as a punch press, a bender, or a laser processing machine.
[0015]
In addition, referring to FIG. 3, the planing sheet part configuration information 17 is used to determine which part of which sheet is processed in which order, and the sheet ID and sheet name for specifying the material W As will be described later, the block ID for identifying the blocks grouped for the convenience of shearing, the coordinates of the reference point (see FIG. 2) indicating the block position, the part ID for identifying the part in this block, and the part ID Parts information such as the coordinates of the reference point (see FIG. 2) is collected for each material W.
[0016]
This sheet take sheet part configuration information 17 is automatically created by the nesting system 9 and stored in a memory. Or you may make it create and input manually.
[0017]
Using the processing schedule 11, sheet processing program 13, part processing program 15 and planing sheet part configuration information 17 created in this way, the line control unit 21 performs tracking control of the line equipment 25 via the sequencer 23 (FIG. 1). The NC device 27 controls the various processing machines such as the automatic warehouse 29, the short side shear 31A, the long side shear 31B, the next process processing machine 19, the carry-out / sorting / stacking device 33, and the like. Carry out, etc.
[0018]
Next, a part tracking control method will be described with reference to FIGS.
[0019]
First, the nesting system 9 creates a machining schedule 11, a sheet machining program 13, a part machining program 15, and a plate cutting sheet part configuration information 17 (S1 in FIG. 1), and these are sent to the line control unit 21 as needed.
[0020]
When the host controller 3 sends the processing schedule 11 indicating the overall processing flow for each material W and the sheet ID specifying the material W to the sequencer 23 to reserve the schedule (S2 in FIGS. 1 and 5), the sequencer 23 First, the controller 3 is requested to download the sheet processing program 13 (see FIG. 4) in order to take out parts from the sheet while showing the sheet ID (S3 in FIGS. 1 and 5).
[0021]
The host controller 3 downloads the sheet processing program 13 to the NC device 27 (S4 in FIGS. 1 and 5), and for the material W taken out from the automatic warehouse 29 under the control of the NC device 27, for example, a number of parts such as the following: Take a piece.
[0022]
That is, referring to FIGS. 2 and 4, first, shearing is performed in the X-axis direction with the short-side shear 31A. At this time, P1 is a block 1, P2 is a block 2, P3 is a block 3, and P4 to P6 are a block 4 except for the end material (the portion indicated by hatching in FIG. 2).
[0023]
Next, shearing in the Y-axis direction is performed with the long-side shear 31B. For block 1, block 2, and block 3, only the end material is separated. The block 4 is sheared to be separated into parts P4, P5, and P6.
[0024]
Thereby, shearing and contour shaping are performed in the order of parts P1, P2, P3, P4, P5, and P6.
[0025]
When the parts are separated in this way, the part separation ID is sent to the host controller 3 (S5 in FIGS. 1 and 5), so that the line controller 21 serving as information collating means in the host controller 3 causes the sheet controller 21 to The sheet name and part name are determined by collating the sheet ID, block number, part ID (P1, P2,...) And the like in the machining program 13 with the plate cutting sheet part configuration information 17.
[0026]
The host controller 3 transmits parts tracking information to the sequencer 23 in order to specify the parts to be processed (S6 in FIGS. 1 and 5), and the sequencer 23 instructs the host controller 3 on the part ID and the parts processing program 15 Is requested (S7 in FIGS. 1 and 5).
[0027]
The host controller 3 to download the part machining program 15 corresponding to the NC device 27 receives this (FIGS. 1 and 5 in S8), the NC device 27 is a processing part by controlling the next step working machine 19 Do. When the processing is completed, the sheet / part record is sent from the sequencer 23 to the host controller 3 and stored therein (S9 in FIGS. 1 and 5).
[0028]
From the above results, machining is performed while transmitting schedule information, machining program information, performance information, etc. in real time and command communication between the host controller 3 and the sequencer 23 or NC device 27, and after parts are separated, Since the identification ID and sheet / part name, which are identification signs, are confirmed, and then processing is performed while confirming the part with this identification ID, the vertical and horizontal parts are mixed in the material W by nesting. Even in complicated cases that require cutting in two directions at the time of cutting the contour of a part, the parts will not be mistaken in subsequent processing.
[0029]
Further, when the part name is specified, the setup of the next process machine 19 and the sorting after the completion of all the processes are easily automated, the man-hour is greatly reduced, and there is no mistake.
[0030]
The present invention is not limited to the above-described embodiment, and can be implemented in other modes by making appropriate modifications. That is, it goes without saying that the combination of various next process machines 19 in the line equipment 25 described in the above-described embodiment is an example, and that other combinations can be similarly applied.
[0031]
In addition to the so-called online operation as described above, the present invention can be applied to an offline operation in which machining is performed only by the sequencer 23 and the NC device 27 without being connected to the host controller 3 as described below.
[0032]
That is, referring to FIG. 6, in the offline operation, the sheet / part machining programs 13 and 15 corresponding to the schedule to be machined are registered in advance in the memory of the NC device 27 for each machining machine. By matching the program numbers of the machining programs 13 and 15 registered in each NC device 27 with the identification IDs of the sheet and part ID, the host controller 3 can perform offline operation after schedule setting in the sequencer 23. The desired machining can be performed by selecting the machining programs 13 and 15 in each NC device 27 instead of each request command. In this way, by switching the machining program reference method in accordance with the online / offline operation mode in the sequencer 23, the online / offline operation can be selected.
[0033]
【The invention's effect】
As described above, in the part tracking nesting control method, each nested part is grouped into several blocks, and a material identification mark for identifying the material and a block for identifying the block are used as identification marks for this part. Numbers are stored in memory, and after the contour cutting of the parts is completed, the above-mentioned material identification signs and block numbers are compared with the part information in the sheet machining program, and if there is no mistake, the identification signs for each part are determined. Therefore, even when the nesting is complicated, the identification mark of the nesting part is not erroneously stored. Thereby, subsequent processing, sorting, etc. can be performed reliably.
[0034]
Also, in the part tracking nesting device, the nesting means nests the material, groups each part into several blocks, stores the part information about each part in the memory, and the information matching means stores the part information and the sheet. The parts information in the machining program is collated, and the part identification indicator for identifying each part is confirmed after the contour cutting process is completed. The sign is not memorized in error. Thereby, subsequent processing, sorting, etc. can be performed reliably.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a parts tracking control apparatus according to the present invention.
FIG. 2 is an explanatory diagram showing an example of nesting.
FIG. 3 is a table showing the contents of planing sheet part configuration information.
FIG. 4 is an example of a sheet processing program.
FIG. 5 is an explanatory diagram of online processing.
FIG. 6 is an explanatory diagram of off-line processing.
FIG. 7 is an example of conventional line equipment.
FIG. 8 is an example of conventional nesting.
[Explanation of symbols]
1 Parts tracking controller 9 Nesting system (nesting means)
11, 13, 15, 17 Memory 13 Sheet processing program 21 Line control unit (information collating means)
W material

Claims (2)

A first step of nesting the materials and grouping each part into blocks for each vertically long part and horizontally long part,
Parts of the sheet name for specifying the material, the block ID for specifying the grouped block, the coordinates of the reference point indicating the block position, the part ID for specifying the part in this block, and the coordinates of the reference point of each part A second step of storing information in memory for each material;
A third step of collating the part information stored in the memory with the part information in the sheet processing program for performing contour cutting,
Identifies each part when the vertical part and horizontal part are mixed into the material by nesting, the long sides Shah, to confirm the part performs part contour cut with shorter sides Shah, working after the disconnection processing of the part The part tracking control method characterized by performing. Nesting means for nesting the material and grouping the nested parts into blocks for each vertically long part and horizontally long part,
A sheet name that identifies the material obtained by the nesting means, a block ID that identifies grouped blocks, coordinates of a reference point indicating a block position, a part ID for identifying a part in this block, Memory that stores part information for each material, including the coordinates of the reference point of the part,
Information collating means for collating the part information of each part stored in this memory with the part information in the sheet machining program for contour cutting,
Identifies each part when the vertical part and horizontal part are mixed into the material by nesting, the long sides Shah, to confirm the part performs part contour cut with shorter sides Shah, working after the disconnection processing of the part A part tracking control device characterized by

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