JPH11320143A - Device and method for additional processing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a processing device and a method with which an additional processing can be carried out by automatically detecting a desired processing area and allocating an already registered, desired additional processing shape to said area, not depending on an operator's discretion when the additional processing is called for. SOLUTION: The device is provided with a Y axis carriage 2 which is horizontally movable in parallel to an angular shape frame 1, and a processing head 5 having a vertically movable Z axis carriage 3. Inside the angular shape frame 1, an image recognition means 6 is installed to recognize a processed product shape or a work remaining member for memory registration and displaying them on the screen. In case of an additional processing to the processed product, a desired, already registered additional shape is CAD inputted, and in a case of an additional processing to the remained member part, an allocation is carried out rationally by an allocation nesting function. A processing means is also provided with for carrying out the processing according to the CAD inputted information or the allocation information.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an additional apparatus and method for a plate processing machine such as a laser processing machine.

[0002]

2. Description of the Related Art In the case of a so-called additional machining in which a workpiece is further processed in addition to a processed product, a jig is manufactured according to the shape of the product, and the jig is set manually according to the X and Y coordinates of the processing machine. Or, when performing additional machining using the remaining material of the processed work,
For example, the range of the remaining portion is measured by a measurer or the like, to determine whether the dimensions of the product to be additionally processed can be obtained, and where the X and Y coordinates of the processing machine remain even after the work is set on the processing machine. It is customary for an operator to independently perform an operation, such as performing an operation after judging whether or not it corresponds to a material range.

[0003]

However, in the above-mentioned conventional example, when, for example, additional processing is performed on a processed product, a corresponding dedicated jig must be made, which results in cost and time. And there is a problem that the reliability of the accuracy is uncertain for the X and Y coordinates.
In the case of using the remaining material of the processed work, it must be done by the operator at the discretion of the operator, such as how much and where the remaining material part is located, and whether the desired additional product can be processed. In addition, it is necessary to set and measure where the X and Y coordinates on the processing machine correspond to the remaining material, and there is a problem of complexity.

The present invention has been made by paying attention to the above-described points, and when performing additional processing on a processed product or a remaining material portion of a work after cutting the product, it is necessary for the operator to make a judgment. Instead, it is an object of the present invention to provide an additional machining apparatus and a method capable of automatically detecting a desired additional machining area, allocating a desired additional product shape registered in advance to the area, and performing additional machining.

[0005]

The present invention can solve the above-mentioned problems by providing the following constitution.

(1) In a plate material processing machine such as a laser beam machine, a rectangular tube-shaped frame is laid horizontally on a work table in a direction perpendicular to the traveling direction, and is movable horizontally in parallel with the rectangular tube-shaped frame. A processing head having a shaft carriage and a vertically movable Z-axis carriage, image recognition means provided in the rectangular cylindrical frame, and recognition and acquisition of the shape of the processed product on the work table or the remaining material portion of the work. The registered information is displayed on a screen, and in the case of additional machining to a processed product, a desired shape which has been registered in advance and which is desired to be additionally machined is CAD-input by a CAD function in the control system.
In addition, in the case of additional machining to the remaining material portion of the work, a desired shape which is registered in advance and which is desired to be additionally machined is rationally allocated to the remaining material portion of the work by an allocation nesting function in the control system. An additional processing device comprising a processing means for performing processing in accordance with input information or allocation information.

(2) The additional processing device according to the above (1), wherein the image recognition means is a CCD camera.

(3) The additional processing apparatus according to the above (1), wherein an imaging range per one CCD camera is set in advance, and at least one or more CCD cameras are arranged.

(4) In a plate material processing machine such as a laser processing machine, an image recognition step of recognizing an image such as work data, a step of storing and recognizing the image obtained and recognizing, and a step of displaying the stored and registered image information on a screen; In the case of alteration to the processed product, the process of inputting the desired shape that is registered in advance by CAD function in the control system, and in the case of alteration to the remaining material part of the work, it is registered in advance. A step of rationally allocating a desired shape to be processed to the remaining material portion of the work by an allocation nesting function in the control system, and a processing step of performing processing in accordance with the CAD input information or the allocation information. Characterized additional processing method.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below.

FIG. 1 is a schematic vertical sectional side view showing an embodiment of an additional machining apparatus according to the present invention, FIG. 2 is a perspective view showing an example in which a cut product is set, and FIG. FIG. 4 is a perspective view showing an example in which image information is displayed on a CNC screen, FIG. 5 is a plan view showing an example of an additional machining desired shape, and FIG. FIG. 7 is an explanatory diagram showing an example of allocation, FIG. 7 is an explanatory diagram showing an example of a remaining material portion (remaining material area) after cutting a fixed-length material product, FIG. It is an additional processing operation | movement flowchart at the time of wanting to perform additional processing on the processed product.

Referring to the drawings, reference numeral 1 denotes a rectangular tube-shaped frame (hereinafter, referred to as a Y beam), 2 denotes a Y-axis carriage having a Y-axis direction moving function, and 3 denotes a vertical direction, that is, a Z-axis direction moving function. Z-axis carriage, 4 is bend mirror,
Reference numeral 5 denotes a processing head, and 6 denotes image recognition means (hereinafter, referred to as a CCD camera). The processing head 5 is capable of processing by condensing and irradiating a laser beam (not shown) via a bend mirror 4. The Y-beam 1 is provided with a guide rail 2b on the outer surface of the Y-beam 1 horizontally along the Y-axis, and a Y-axis carriage having a sliding portion 2a that is slidable by being fitted on the guide rail 2b. 2 is formed in the shape of a horizontally long flat plate and attached upright, and a machining head 5 is attached to the side surface of the Y-axis carriage 2.
Is provided via a sliding portion 3a and a guide rail 3b. The processing head 5 is movable along the Y axis and the Z axis, and the Y beam 1 The processing head 5 is movable in the axial direction, and thus constitutes a three-axis light moving type laser processing machine having a so-called gantry type frame which is movable in three axial directions of X, Y and Z.

Further, the CCD camera 6 allows the end of the CCD camera to be viewed from an imaging window 1a provided on the lower surface of the Y beam 1 so that the work W on the work table T can be imaged. At least one or more units are connected in a downward direction along the line, and are arranged so as not to leak images.

The operation will be described based on the above configuration and the flowcharts of FIGS.

First, a case where additional processing is performed on a remaining work part will be described with reference to FIG. In step S801, a remaining material Wz having a remaining material portion Az is set on the work table T (see FIG. 3), and in the next step S802, origin return is performed on the X, Y, and Z axes of the processing machine.
3 Select the remaining material detection mode and select the remaining material part (remaining material area) A
When the start button of the personal computer operation unit is pressed in step S804, the Y beam 1 moves to the end in the X direction, and the remaining material on the worktable T is determined. Change the Wz shape to the CC
Scanning is performed by the D camera 6, and work data is taken in which the bright portion is a remaining material portion (remaining material area) Az and the dark portion is a cut portion having a hole after the product has already been cut and removed (step S806). The reading speed at the time of scanning is provided so as to be adjustable so as to be an appropriate speed at which the CCD camera 6 can read. Next step S
At 807, the work data (determined as a bright portion and a dark portion) is feedback-transmitted to the control device. Step S80
At 8, the CCD camera 6 scans the remaining material Wz while re-moving the Y beam 1 to return to the coordinate origin, again confirming the range shape of the remaining material portion Az, and there is no mistake in the work data. Check if. After returning to the coordinate origin, if there is an error, the process returns to step S805. If there is no error, the process proceeds to the next step S809, and the remaining material portion (remaining material area) Az detection scan mode ends. In step S810, the data taken into the numerical controller is developed into machine coordinates X and Y, and registered in the storage unit as data of the set remaining material Wz. The developed view of the work data of the registered remaining material portion (remaining material area) Az is displayed on the screen as shown in FIG. In addition, the storage registration unit may be held inside the numerical control device, or may be held inside a connected external personal computer. The work data development diagram is displayed on a personal computer operation (CNC) screen of the numerical controller.

In step S812, a list of shapes of the pre-registered additional machining desired product is called in accordance with the material and the thickness of the work data (see FIG. 5). Then, step S
In step 813, a remaining material portion (remaining material area) Az is allocated using the allocation nesting function (see FIG. 6). In step S814, the allocated data is converted into numerical data unique to the control device and fed back to the numerical control device. Then, in step S815, the additional machining program is executed at the start of the program, and the machining is completed to end.

The apparatus and method for additional processing of the remaining material portion Az (tentative name: remaining material system) is a method for a pallet changer type machine equipped with a shelf for storing the remaining material Wz.
It is also possible to manage the remaining material Wz previously inspected in the remaining material detection mode for each pallet. Therefore, at any time, the remaining material Wz
, A desired workpiece shape to be processed can be allocated, and the system can be automatically extended to a system that can effectively use the remaining material Wz.

Next, with reference to FIG. 9, an operation when additional processing is performed on a processed product will be described. Step S901
To set the processed product Ws desired for additional processing on the work table T (see FIG. 2), return the origin of the coordinate axes X, Y, and Z of the processing machine in step S902, and process in the personal computer operation unit CNC in step S903. The scan mode of the finished product Ws is selected, and then the start button of the personal computer operation unit CNC is pressed (S904). When the start button is pressed, the Y beam 1 moves to the end in the X direction, and the shape of the processed product Ws on the work table T is simultaneously scanned by the CCD camera 6 (S905). The reading speed at the time of scanning is provided so as to be adjustable so as to be an appropriate speed at which the CCD camera 6 can read. Next, in step S906, the product data read by the CCD camera 6 is transmitted to the numerical control device, and the numerical control device takes in the product set coordinates for the machine coordinates X and Y. In step S907, while the Y beam returns to the coordinate origin, it is read again by the CCD camera 6, and
It is checked whether or not there is a problem such as an error in the stored data. If there is a problem, the process returns to step S905, and if there is no problem, the process proceeds to step S908 to end the scan mode of the processed product Ws. In step S909, the data taken into the numerical controller is developed into machine coordinates X and Y, and the set product is stored and registered. Step S910
Then, the product data such as a development view of the registered product is displayed on the CNC screen of the personal computer operation unit. Next, step S91
In step S1, a personal computer operation unit and a numerical controller having a CAD function in advance perform CAD input of the desired additional machining shape as an absolute value with respect to the displayed product data.
Then, the CAD input data is converted into numerical data unique to the numerical controller, the machining program is started, the additional machining program is executed (S913), the processing is ended, and the processing ends.

[0019]

According to the present invention, when additional processing is performed on a processed product or on a remaining material portion of a workpiece after cutting the product, a desired additional processing area is automatically detected regardless of an operator's judgment, and There is an effect that a registered desired additional product shape can be allocated to the area to perform additional processing.

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal cross-sectional view showing an embodiment of an additional machining device according to the present invention.

FIG. 2 is a perspective view showing an example in which a product after cutting is set.

FIG. 3 is a perspective view showing an example in which a residual material of a work after processing is set.

FIG. 4 is a perspective view showing an example of displaying image information on a CNC screen.

FIG. 5 is a plan view showing an example of a desired shape of the additional processing.

FIG. 6 is an explanatory diagram showing an example of additional machining assigned to remaining material.

FIG. 7 is an explanatory view showing an example of a remaining material portion (remaining material area) after cutting a fixed length product.

FIG. 8 is a flowchart of an additional machining operation for a remaining work portion

FIG. 9 is a flowchart of an additional machining operation when an additional machining is to be performed on a processed product.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Y beam (square cylindrical frame) 1a Window for imaging 2 Y axis carriage 2a, 3a Sliding part 3 Z axis carriage 2b, 3b Guide rail 4 Bend mirror 5 Processing head 6 CCD camera (image recognition means) Az Remaining material Part (remaining material area) T Work table W Work Ws Product Wz Remaining material

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI G06T 7/00 G06F 15/62 400

Claims (4)

[Claims] In a plate material processing machine such as a laser processing machine, a rectangular tube-shaped frame is horizontally provided on a work table at right angles to a traveling direction, and a Y-axis that can move horizontally in parallel with the rectangular tube-shaped frame. A processing head having a carriage and a vertically movable Z-axis carriage; and an image recognition means provided in the rectangular tube-shaped frame, for recognizing and acquiring the shape of the processed product on the work table or the remaining material portion of the work. The registered information is displayed on the screen, and in the case of additional machining to the processed product, the desired shape which has been registered in advance and which is desired to be additionally machined is CAD-input by the CAD function in the control system, and the workpiece is processed again. In the case of additional machining to the remaining material portion, the desired shape that has been registered for additional machining is rationally allocated to the remaining material portion of the work by the allocation nesting function in the control system. An additional processing device comprising a processing means for performing processing in accordance with input information or allocation information. 2. The additional processing apparatus according to claim 1, wherein the image recognition means is a CCD camera. 3. An imaging range for one CCD camera is set in advance, and at least one or more CCDs are provided.
The additional processing device according to claim 1, further comprising a camera. 4. In a plate material processing machine such as a laser processing machine, an image recognizing step of recognizing an image such as work data, a step of storing and recognizing a recognized image, a step of displaying the stored and registered image information on a screen, and a processing step. In the case of alterations to finished products, the desired shape that is registered in advance and
In the case of the CAD input process by the AD function, or in the case of additional machining to the remaining material part of the work, the desired shape that is registered in advance and desired to be additionally machined is rationalized by the allocation nesting function in the control system for the remaining material part of the work. And a machining step of performing machining in accordance with the CAD input information or the assignment information.