CN102528208A - Laser measurement marking-off cutting method for big-width plate - Google Patents
Laser measurement marking-off cutting method for big-width plate Download PDFInfo
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- 238000005259 measurement Methods 0.000 title claims abstract description 27
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- 230000017105 transposition Effects 0.000 claims description 12
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- 230000009466 transformation Effects 0.000 claims description 4
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- 239000000463 material Substances 0.000 abstract description 3
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Abstract
本发明涉及板材加工方法，具体地说是一种大幅面板材的激光测量画线切割方法，将待切割工件吊装到工作台上，利用安装在五轴龙门式测量画线切割机上的照相机对工件进行扫描得出工件表面特征的坐标，利用控制软件进行差补拟合，得出工件的外形轮廓，用外形轮廓与理想模型进行数据对比，自动生成画线轨迹，并将画线轨迹传送给五轴龙门式测量画线切割机，开始激光画线，并将激光画线的路径坐标传送给切割机，待激光画线结束后，切割机按照激光画线轨迹进行切割。本发明的方法可实现立体加工，自动采集立体表面数据特征，自动形成加工路径，测量精度高、稳定性好、速度快、一致性好，使画线产品更接近理想曲面。
The invention relates to a sheet material processing method, in particular to a method for laser measurement and line-drawing cutting of a large-scale sheet material. Scan to obtain the coordinates of the surface features of the workpiece, and use the control software to perform differential fitting to obtain the contour of the workpiece, compare the contour with the ideal model, automatically generate the line drawing trajectory, and send the line drawing trajectory to five Axis gantry measuring line drawing cutting machine starts laser line drawing, and transmits the path coordinates of laser line drawing to the cutting machine. After the laser line drawing is completed, the cutting machine cuts according to the laser line drawing track. The method of the invention can realize three-dimensional processing, automatically collect the data characteristics of the three-dimensional surface, automatically form the processing path, have high measurement accuracy, good stability, fast speed and good consistency, and make the line-drawing product closer to the ideal curved surface.
Description
Technical field
The present invention relates to method for processing sheet material, specifically a kind of laser measurement setting-out cutting method of large-breadth plates by using.
Background technology
Along with fields such as modern manufacturing industry such as aviation, boats and ships, automobile, nuclear power all pursuing the new structure integrated design, increasing large scale structural member has appearred in the new structural design.And along with the continuous increase and the curved surface complexity of structural member size increases, this just requires when carrying out plate cutting, will carry out setting-out at plate surface in advance, to guarantee the precision of plate cutting size.At present, plate cutting mainly adopts the mode of artificial setting-out, and artificial setting-out not only production efficiency is low, and setting-out precision and definition are difficult to guarantee that for the three-dimensional cutting processing of large format, artificial setting-out mode is difficult to accomplish especially; And it is too high to adopt Digit Control Machine Tool to carry out the setting-out processing cost.
Summary of the invention
In order to solve artificial setting-out low precision, inefficient problem, the object of the present invention is to provide a kind of laser measurement setting-out cutting method of large-breadth plates by using.
The objective of the invention is to realize through following technical scheme:
Method of the present invention is: to workbench, utilization is installed in five cameras on the planer-types measurement setting-out cutting machine workpiece is scanned the coordinate that draws the surface of the work characteristic, utilizes control software to differ from the benefit match with work piece hoisting to be cut; Draw the appearance profile of workpiece; Carry out the data contrast with appearance profile and ideal model, generate the setting-out track automatically, and send the setting-out track to five planer-types measurement setting-out cutting machines; The setting-out of beginning laser; And send the path coordinate of laser setting-out to cutting machine, treat that the laser setting-out finishes after, cutting machine cuts according to laser setting-out track.
Concrete steps are:
A. with work piece hoisting to be cut to workbench; Utilization is installed in five cameras on the planer-types measurement setting-out cutting machine surface of the work is scanned; Draw a series of surface of the work characteristic point coordinate data, camera with five planer-types measure the setting-out cutting machines have X to, Y to and Z to three one-movement-freedom-degrees;
B. utilizing the M file of MATLAB software programming to differ from complementary operation the characteristic point coordinate data that obtains simulates the workpiece appearance profile, appearance profile and the theoretical model that simulates is compared;
C. confirm the transformation relation of lathe coordinate system and workpiece coordinate system by workpiece to be cut position of datum mark on workbench; The path is gathered in planning; Automatically gather the surface of the work data characteristics; Form workpiece data model; Carry out data relatively with ideal model; Search for optimum setting-out position, generate the setting-out track automatically;
D. begin the laser setting-out, and send the path coordinate of laser setting-out to cutting machine, treat that the laser setting-out finishes after, cutting machine cuts according to laser setting-out track.
Wherein: said five planer-types measurement setting-out cutting machine has X and reaches mobile transposition unit to mobile unit, Z to mobile unit to mobile unit, Y; Wherein X has X to one-movement-freedom-degree to mobile unit; Y to mobile unit be installed in X to move on the unit, have X to Y to two one-movement-freedom-degrees, Z to mobile unit be installed in Y on mobile unit, have X to, Y to Z to three one-movement-freedom-degrees; Move the transposition unit and be installed in Z to moving on the unit, have X to, Y to Z to three one-movement-freedom-degrees and around X to two rotational freedoms of Y to rotation; Planer-type is measured the mode that the setting-out cutting machine adopts overhead guide rail and moving beam, and crossbeam is across on the workbench, by upright supports; Each moves the unit and all adopts the rotation of drive motor drives gear, moves through the engagement realization of wheel and rack; Move the transposition unit also have H to one-movement-freedom-degree, this H is to identical to direction with X; X is to orthogonal in the horizontal direction with Y, and Z makes progress to vertical.
Advantage of the present invention and good effect are:
1. method of the present invention can realize three-dimensional processing, gathers the three-dimensional surface data characteristics automatically, forms machining path automatically.
2. the present invention is a non-cpntact measurement, certainty of measurement height, good stability, fast, the high conformity of speed.
3. search for optimum blanking setting-out position automatically according to the data characteristics of gathering, make the setting-out product more near ideal surface.
4. systemic-function expansion potentiality are big, and converted products is various.
5. the laser setting-out belongs to contactless setting-out mode, and setting-out speed is fast, svelteness, and precision is high, and is not easy to wear.
Description of drawings
Fig. 1 is the structural front view of the employed measurement setting-out of the inventive method cutting machine;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is the structural front view that moves the transposition unit among Fig. 1;
Fig. 5 is the left view of Fig. 4;
Wherein: 1 is support, and 2 is operating desk,
3 be X to mobile unit, 301 be X to drive motors, 302 be X to gear, 303 be X to tooth bar, 304 is column, 305 is crossbeam, 306 be X to drag chain, 307 is that X is to guide rail;
4 be Y to mobile unit, 401 be Y to drive motors, 402 be Y to guide rail, 403 be Y to installing plate, 404 be Y to tooth bar, 405 is that Y is to drag chain;
5 be Z to mobile unit, 501 be Z to drive motors, 502 be Z to tooth bar, 503 be Z to installing plate, 504 is that Z is to drag chain;
6 for moving the transposition unit, and 601 is gage outfit, and 602 is laser setting-out head, and 603 is flame cutting head, and 604 is base, and 605 is Rodless cylinder, and 606 is slide block, and 607 is the α axis drive motor, and 608 is the β axis drive motor, and 609 is mount pad;
7 is workbench, and 8 is workpiece.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is made further detailed description.
The concrete steps of laser measurement setting-out cutting method of the present invention are:
A. with work piece hoisting to be cut to workbench; Utilization is installed in five cameras on the planer-types measurement setting-out cutting machine surface of the work is scanned; Draw a series of surface of the work characteristic point coordinate data, camera with five planer-types measure the setting-out cutting machines have X to, Y to and Z to three one-movement-freedom-degrees;
B. utilizing the M file of MATLAB software programming to differ from complementary operation the characteristic point coordinate data that obtains simulates the workpiece appearance profile, appearance profile and the theoretical model that simulates is compared;
C. confirm the transformation relation of lathe coordinate system and workpiece coordinate system by workpiece to be cut position of datum mark on workbench; The path is gathered in planning; Automatically gather the surface of the work data characteristics; Form workpiece data model; Carry out data relatively with ideal model; Search for optimum setting-out position, generate the setting-out track automatically;
D. begin the laser setting-out, and send the path coordinate of laser setting-out to cutting machine, treat that the laser setting-out finishes after, cutting machine cuts according to laser setting-out track.
Shown in Fig. 1～3; Five planer-types used in the present invention are measured the setting-out cutting machine and are comprised that support 1, X reach mobile replace unit 6 to mobile unit 4, Z to mobile unit 5 to mobile unit 3, Y; X can be along X to moving back and forth to mobile unit 3; Y to mobile unit 4 be installed in X on mobile unit 3, have X to Y to two one-movement-freedom-degrees, can be along Y to moving back and forth, also can be with X to mobile unit along X to moving back and forth; Z is installed in Y on mobile unit 4 to mobile unit 5, have X to, Y to Z to three one-movement-freedom-degrees, promptly Z can be along Z to moving back and forth to mobile unit 5, can be with Y to mobile unit 4 along Y to moving back and forth, also can be with X to mobile unit along X to moving back and forth.Move transposition unit 6 and be installed in Z on mobile unit 5; Have Z to the X that moves unit 5 to, Y to Z to three one-movement-freedom-degrees and have around X to two rotational freedoms of Y to rotation; Be α axle and β axle, also have along H to the one-movement-freedom-degree that moves back and forth.X is to orthogonal in the horizontal direction with Y, and Z makes progress to vertical, and the α axle is around the free degree of Y to rotation, the β axle be around X to the free degree of rotating and vertical with the α axle, H is to identical to direction with X.
X to mobile unit 3 comprise X to drive motors 301, X to gear 302, X to tooth bar 303, column 304, crossbeam 305, X to drag chain 306 and X to guide rail 307; Support 1 is positioned at the both sides of workbench 7 length directions, is rotated on the workbench 7 by the workpiece 8 of setting-out cutting; On support 1, be fixed with X to guide rail 307, X is provided with the X that is fixed on the support 1 to tooth bar 303 to the inboard of guide rail 307, and X is parallel to guide rail 307 with X to tooth bar 303; Two columns 304 and the crossbeam 305 that is fixed in two column tops have been formed the support section of cutting machine, and the bottom of two columns 304 links to each other to guide rail 307 with X through slide block respectively; X is fixed on the column 304 to drive motors 301, and X key on the output shaft of drive motors 301 is connected with X to gear 302, and X is meshed to tooth bar 303 with X to gear 302; X is installed on the support 1 to an end of drag chain 306, and the other end links to each other with column 304, and X is electrically connected with operating desk 2 on being installed in column 304 to drive motors 301, and X can be used for cabling to drag chain 306.X drives X to drive motors 301 and rotates to gear 302, through X to gear 302 and the engagement of X to tooth bar 303, make X to move unit 3 and on Y move back and forth to guide rail 307 along X to mobile unit 5 and the mobile unit 6 that replaces to mobile unit 4, Z.
Y to mobile unit 4 comprise Y to drive motors 401, Y to guide rail 402, Y to installing plate 403, Y to tooth bar 404 and Y to drag chain 405; Wherein Y is two to guide rail 402; Be fixed on abreast up and down on the crossbeam 305, between guide rail 402, be connected with Y to tooth bar 404 at two Y, Y is parallel to guide rail 402 with Y to tooth bar 404; Y links to each other to guide rail 402 with Y through slide block to installing plate 403; On installing plate 403, be provided with Y to drive motors 401 at Y, Y to the output shaft of drive motors 401 by Y to installing plate 403 pass, key is connected with Y to gear, Y is meshed to tooth bar 404 with Y to gear; Y is installed on the crossbeam 305 to an end of drag chain 405, and the other end links to each other to installing plate 403 with Y, and Y is electrically connected with operating desk 2 on being installed in column 304 to drive motors 401, and Y can be used for cabling to drag chain 405.Y drives Y to drive motors 401 and rotates to gear, through Y to gear and the engagement of Y to tooth bar 404, make Y to move unit 4 and on Z move back and forth to guide rail 402 along Y to mobile unit 5 and the mobile unit 6 that replaces.
Z to mobile unit 5 comprise Z to drive motors 501, Z to tooth bar 502, Z to installing plate 503 and Z to drag chain 504; Wherein Z is fixed on Y on installing plate 403 to drive motors 501; This Y also is connected with Z to guide rail on installing plate 403, Z links to each other to guide rail with Z through slide block to installing plate 503; Z to tooth bar 502 be arranged on Z on installing plate 503, parallel with Z to guide rail, Z key on drive motors 501 output shafts is connected with Z to gear, Z is meshed to tooth bar 502 with Z to gear; Z links to each other with crossbeam 305 to an end of drag chain 504, and the other end is connected to Z to installing plate 503, and Z is electrically connected to the operating desk 2 that moves on the unit 3 with being installed in X to drive motors 501, and Z can be used for cabling to drag chain 504.Z drives Z to drive motors 501 and rotates to gear, to gear and the engagement of Z to tooth bar 502, Z is moved back and forth through Z to guide rail along Z to mobile unit 5 and the mobile unit 6 of replacing.
Like Fig. 4, shown in Figure 5; Move transposition unit 6 and comprise gage outfit 601, laser setting-out 602, flame cutting head 603, base 604, Rodless cylinder 605, slide block 606, α axis drive motor 607, β axis drive motor 608 and mount pad 609; Wherein α axis drive motor 607 is fixed on Z on installing plate 503; Mount pad 609 links to each other with the output shaft of α axis drive motor 607; β axis drive motor 608 is fixed on the mount pad 609, is connected with base 604 on the output shaft of β axis drive motor 608, is equipped with Rodless cylinder 605 on the base 604; On Rodless cylinder 605, be provided with along H to the slide block that moves back and forth 606, gage outfit 601, laser setting-out 602 and flame cutting head 603 be fixed in respectively on this slide block 606, with slide block 606 interlocks.α axis drive motor 607 is worked respectively with β axis drive motor 608, can make move transposition unit 6 respectively around X to Y to rotation; Through Rodless cylinder 605 can realize slide block 606 drive gage outfits 601, laser setting-out 602 and flame cutting head 603 along H to moving back and forth.
Through X to, Y to move the horizontal extent that can cover workpiece 8, through Z to move the variation that can adapt to workpiece 8 short transverses; Can adapt to the variation of workpiece 8 curvature aspects through the rotation of α axle, β axle.
With work piece hoisting to be cut to workbench; Utilization is installed in five cameras on the planer-types measurement setting-out cutting machine surface of the work is scanned; Draw a series of surface of the work characteristic point coordinate data, camera with five planer-types measure the setting-out cutting machines have X to, Y to and Z to three one-movement-freedom-degrees; Utilizing the M file of MATLAB software programming to differ from complementary operation the characteristic point coordinate data that obtains simulates the workpiece appearance profile, appearance profile and the theoretical model that simulates is compared; Confirm the transformation relation of lathe coordinate system and workpiece coordinate system through workpiece to be cut position of datum mark on workbench; The path is gathered in planning; Automatically gather the surface of the work data characteristics; Gage outfit 601 can detect the height of workpiece 8, through X to, Y to displacement transducer confirm the horizontal level of measurement point.Can confirm that through measuring whether workpiece 8 satisfies the requirement of processing, can confirm the curvature of workpiece 8 through the comparison of facing measurement point mutually.Operating desk 2 is cooked up best setting-out path according to measurement result control, controls each drive motors then, through the draw track of workpiece of five (X to, Y to, Z to, α axle, β axle) interlocks.Start to move transposition unit 6 at last, with flame cutting head 605 through Rodless cylinder 605 along H to moving on on the original position of laser setting-out 602, flame cutting head 605 excises waste material along the setting-out track.
Claims (6)
1. the laser measurement setting-out cutting method of a large-breadth plates by using is characterized in that: work piece hoisting to be cut to workbench, is utilized to be installed in the cameras that five planer-types measure on the setting-out cutting machine and workpiece to be scanned the coordinate that draws the surface of the work characteristic; Utilize control software to differ from the benefit match, draw the appearance profile of workpiece, carry out the data contrast with appearance profile and ideal model; Automatically generate the setting-out track; And send the setting-out track to five planer-types and measure the setting-out cutting machines, the setting-out of beginning laser, and send the path coordinate of laser setting-out to cutting machine; After treating that the laser setting-out finishes, cutting machine cuts according to laser setting-out track.
2. by the laser measurement setting-out cutting method of the said large-breadth plates by using of claim 1, it is characterized in that: concrete steps are:
A. with work piece hoisting to be cut to workbench; Utilization is installed in five cameras on the planer-types measurement setting-out cutting machine surface of the work is scanned; Draw a series of surface of the work characteristic point coordinate data, camera with five planer-types measure the setting-out cutting machines have X to, Y to and Z to three one-movement-freedom-degrees;
B. utilizing the M file of MATLAB software programming to differ from complementary operation the characteristic point coordinate data that obtains simulates the workpiece appearance profile, appearance profile and the theoretical model that simulates is compared;
C. confirm the transformation relation of lathe coordinate system and workpiece coordinate system by workpiece to be cut position of datum mark on workbench; The path is gathered in planning; Automatically gather the surface of the work data characteristics; Form workpiece data model; Carry out data relatively with ideal model; Search for optimum setting-out position, generate the setting-out track automatically;
D. begin the laser setting-out, and send the path coordinate of laser setting-out to cutting machine, treat that the laser setting-out finishes after, cutting machine cuts according to laser setting-out track.
3. press the laser measurement setting-out cutting method of claim 1 or 2 said large-breadth plates by using; It is characterized in that: said five planer-types measurement setting-out cutting machine has X and reaches mobile transposition unit (6) to mobile unit (4), Z to mobile unit (5) to mobile unit (3), Y; Wherein X has X to one-movement-freedom-degree to mobile unit (3); Y to mobile unit (4) be installed in X to mobile unit (3) go up, have X to Y to two one-movement-freedom-degrees, Z to mobile unit (5) be installed in Y on mobile unit (4), have X to, Y to Z to three one-movement-freedom-degrees; Move transposition unit (6) and be installed in Z on mobile unit (5), have X to, Y to Z to three one-movement-freedom-degrees and around X to Y to two rotational freedoms that rotate.
4. by the laser measurement setting-out cutting method of the said large-breadth plates by using of claim 3, it is characterized in that: said planer-type is measured the mode that the setting-out cutting machine adopts overhead guide rail and moving beam, and crossbeam is across on the workbench, by upright supports; Each moves the unit and all adopts the rotation of drive motor drives gear, moves through the engagement realization of wheel and rack.
5. by the laser measurement setting-out cutting method of the said large-breadth plates by using of claim 3, it is characterized in that: said mobile transposition unit (6) also have H to one-movement-freedom-degree, this H is to identical to direction with X.
6. by the laser measurement setting-out cutting method of the said large-breadth plates by using of claim 3, it is characterized in that: X is to orthogonal in the horizontal direction with Y, and Z makes progress to vertical.
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| CN2010105899082A CN102528208A (en) | 2010-12-15 | 2010-12-15 | Laser measurement marking-off cutting method for big-width plate |
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| CN2010105899082A CN102528208A (en) | 2010-12-15 | 2010-12-15 | Laser measurement marking-off cutting method for big-width plate |
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Application publication date: 20120704 |