Laser cutting method for stator and rotor steel sheets

Abstract

The invention discloses a laser cutting method for stator and rotor steel sheets, and belongs to the technical field of laser machining, and the laser cutting method for the stator and rotor steel sheets comprises the steps that a clamping tool and a workbench are manufactured according to the preset size of a stator and / or a rotor; manufacturing a production model diagram according to the preset size of the stator and / or the rotor; the production model diagram is imported into a visual positioning laser cutting system, and the machining sequence and the machining path of the production model diagram are formulated to form a machining scheme; the clamping tool is positioned and connected to the workbench, the machined material piece is positioned and connected with the clamping tool, and laser cutting is conducted on the machined material piece according to the machining scheme to obtain a machined finished product; measuring the actual size of a processed finished product; when the deviation between the actual size and the preset size exceeds the preset value, the production model diagram is adjusted or remanufactured according to the deviation, machining is conducted again according to the adjusted or remanufactured production model diagram, and the laser machining efficiency and the finished product machining precision of the stator and / or the rotor can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser processing, in particular to a laser cutting method for stator and rotor steel sheets. BACKGROUND

[0002] Silicon steel sheet is a key component of the stator and rotor of the motor, and its performance is related to the energy loss of the motor, and also related to the performance, volume and weight of the motor product. The traditional silicon steel sheet processing method mainly adopts die stamping, which needs to develop special molds, and the manufacturing cycle is long and the cost is high. Therefore, in the research and development stage, laser cutting is often used to process silicon steel sheets, which does not need to open the mold and can cut any pattern, thereby shortening the manufacturing cycle and reducing the research and development cost.

[0003] In the related art, the traditional laser cutting method generally has the defects of low processing efficiency and low processing precision. SUMMARY

[0004] The present application aims to solve at least one of the technical problems in the prior art. To this end, the present application provides a laser cutting method for stator and rotor steel sheets, which is beneficial to improve the laser processing efficiency and finished product processing precision of the stator and / or rotor.

[0005] The laser cutting method for stator and rotor steel sheets of the embodiment of the present application is applied to laser cutting of the stator and / or rotor, and the laser cutting method for stator and rotor steel sheets comprises the following steps: A clamping tool and a workbench are made according to the preset size of the stator and / or rotor, the workbench is used for positioning the clamping tool, and the clamping tool is used for positioning the processing sheet; A production model is made according to the preset size of the stator and / or rotor; The production model is imported into a visual positioning laser cutting system, the related lines of the production model are adjusted in the visual positioning laser cutting system, the processing sequence and processing path of the production model are formulated, and a processing scheme is formed; The clamping tool is positioned and connected to the workbench, the processing sheet is positioned and connected to the clamping tool, and the processing sheet is laser cut according to the processing scheme to obtain a finished product; The actual size of the finished product is measured, and the actual size is compared with the preset size; When the deviation of the actual size from the preset size exceeds a preset value, the production model is adjusted or re-made according to the deviation, and the production model is re-made according to the adjusted or re-made production model.

[0006] The laser cutting method of the stator and rotor steel sheet has at least the following beneficial effects: the laser cutting method of the stator and rotor steel sheet can be used to manufacture a clamping tool and a workbench according to the preset size of the stator and / or rotor to be machined, the workbench is used to position the clamping tool, and the clamping tool is used to position the machining sheet, so that the center point coordinate of the machining sheet to be cut does not need to be repeatedly found, the machining time can be effectively reduced, and the machining efficiency is improved, the laser cutting method of the stator and rotor steel sheet can be used to manufacture a production model diagram according to the preset size of the stator and / or rotor, the related lines of the production model diagram can be adjusted in the visual positioning laser cutting system after the production model diagram is imported into the visual positioning laser cutting system, so that the machining path along the related lines of the production model diagram is more complete and continuous, the machining sequence and the machining path of the production model diagram are determined, so that a machining scheme is formed, and after the machining product is machined according to the machining scheme, the actual size of the machining product is measured, if the deviation exceeds the preset value, the production model diagram is adjusted or re-manufactured according to the deviation, the feedback compensation effect is achieved, and the stator and / or rotor machined according to the adjusted or re-manufactured production model diagram has higher machining accuracy.

[0007] According to some embodiments of the present application, the visual positioning laser cutting system comprises a laser and a red light emitter, and the red light emitter is used to indicate the machining track of the laser. Adjusting the related lines of the production model diagram in the visual positioning laser cutting system and determining the machining sequence and the machining path of the production model diagram comprises: controlling the laser to move to a preset position relative to the clamping tool in the up-down direction; controlling the red light emitter to operate, and the red light emitter projects the machining track of the laser to the clamping tool; adjusting the machining track, so that the machining track coincides with the machining edge of the clamping tool, and the center point coordinate of the machining sheet is obtained.

[0008] According to some embodiments of the present application, the visual positioning laser cutting system comprises control software. Importing the production model diagram into the visual positioning laser cutting system and adjusting the related lines of the production model diagram in the visual positioning laser cutting system comprises: converting the production model diagram into a format suitable for the control software, and opening the production model diagram by using the control software; merging the related lines of the production model diagram in the control software, so that the machining path is continuous and complete.

[0009] According to some embodiments of the present application, and determining the machining sequence and the machining path of the production model diagram to form a machining scheme comprises: setting the machining path and the machining sequence according to the machining requirements of the stator and / or rotor; Simulate the machining path to verify whether the machining sequence is accurate; When it is determined that the machining sequence is accurate, a machining plan is formed.

[0010] According to some embodiments of the present application, when the deviation of the actual size from the preset size exceeds the preset value, the production model diagram is adjusted or re-made according to the deviation, including: When the deviation of a single actual size from the preset size exceeds the preset value; The production model diagram is opened in the two-dimensional drawing software, the corresponding line is offset by the value of the deviation, the related lines are integrated, the original corresponding line is deleted, and the adjusted production model diagram is obtained.

[0011] According to some embodiments of the present application, when the deviation of the actual size from the preset size exceeds the preset value, the production model diagram is adjusted or re-made according to the deviation, including: When the deviations of multiple actual sizes from the preset size exceed the preset value; The production model diagram is opened in the two-dimensional drawing software, and the production model diagram is re-drawn according to the deviations of the multiple actual sizes from the preset size.

[0012] According to some embodiments of the present application, when the deviation of the actual size from the preset size exceeds the preset value, the production model diagram is adjusted or re-made according to the deviation, including: When the deviations of multiple actual sizes from the preset size exceed the preset value; The production model diagram is opened in the two-dimensional drawing software, the multiple corresponding lines are offset by the value of the deviation, the related lines are integrated, and the original corresponding line is deleted, to obtain the adjusted production model diagram.

[0013] According to some embodiments of the present application, when the deviation of the actual size from the preset size exceeds the preset value, the production model diagram is adjusted or re-made according to the deviation, including: The production model diagram is opened in the control software, the corresponding line is cut in the shade, the value of the shade cutting is the value of the deviation, and the adjusted production model diagram is obtained; Or, the production model diagram is opened in the control software, the corresponding line is cut in the shade, the value of the shade cutting is the value of the deviation, and the adjusted production model diagram is obtained.

[0014] According to some embodiments of the present application, the clamping tool has a tool panel, a stator support plate and a rotor support plate arranged and connected from outside to inside; the tool panel, the stator support plate and the rotor support plate are located on the same horizontal plane.

[0015] According to some embodiments of the present application, the workbench comprises a tool support block and two support seats parallel to each other; the two support seats are respectively connected to the two ends of the tool support block, the upper end of the support seat is provided with a sliding rail, and the two ends of the tool support block are respectively in sliding connection with the two sliding rails; and the tool panel is fixed on the upper part of the tool support block.

[0016] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described below in conjunction with the accompanying drawings and embodiments, in which: Figure 1 Flow chart of the laser cutting method of the stator and rotor steel sheet according to an embodiment of the present application; Figure 2 Flow chart of obtaining the center point coordinates of the machining sheet according to the machining method of the laser cutting method of the stator and rotor steel sheet according to an embodiment of the present application; Figure 3 Flow chart of adjusting the related lines of the production model drawing according to the laser cutting method of the stator and rotor steel sheet according to an embodiment of the present application; Figure 4 Flow chart of forming the machining scheme according to the laser cutting method of the stator and rotor steel sheet according to an embodiment of the present application; Figure 5 Flow chart of adjusting the production model drawing by using two-dimensional drawing software according to the laser cutting method of the stator and rotor steel sheet according to an embodiment of the present application; Figure 6 Flow chart of re-making the production model drawing by using two-dimensional drawing software according to the laser cutting method of the stator and rotor steel sheet according to an embodiment of the present application; Figure 7 Flow chart of adjusting the production model drawing by offsetting according to the laser cutting method of the stator and rotor steel sheet according to an embodiment of the present application; Figure 8 Structural schematic diagram of the clamping tool and the workbench according to an embodiment of the present application; Figure 9 Structural schematic diagram of the workbench according to an embodiment of the present application from another perspective.

[0018] LIST OF REFERENCE NUMBERS 100, workbench; 110, support seat; 120, sliding rail; 130, tool support block; 131, lower clamping block; 140, stop block; 150, blanking box; 160, clamp; 170, dust suction port; 200, clamping tool; 210, tool panel; 220, stator support plate; 230, rotor support plate. DETAILED DESCRIPTION

[0019] Embodiments of the present application are described in detail below with reference to the attached drawings, which show by way of example embodiments in which like numerals indicate like elements or elements having the same or similar function throughout the several views. The embodiments described below are exemplary only and are not to be construed as limiting the present application.

[0020] In the description of the present application, it needs to be understood that the orientation description, such as the orientation or position relationship indicated by up, down, etc. is based on the orientation or position relationship shown in the drawings, which is only for the purpose of facilitating the description of the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0021] In the description of the present application, the plural refers to two or more. If there is a description of first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the sequence relationship of the technical features indicated.

[0022] In the description of the present application, unless otherwise explicitly limited, the words such as arrangement, installation, connection, etc. should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0023] In the related art, the cutting method of silicon steel sheet mainly includes the following: 1. Electric spark cutting Electric spark cutting is to make the silicon steel sheet crack by generating high temperature and high pressure in the moment of electrode discharge. This cutting method requires high voltage and current, and because it generates a lot of waste and dust, it is usually only suitable for small silicon steel sheet cutting.

[0024] 2. Stamping process The stamping process is to put the silicon steel sheet into the mold and then pressurize to make the silicon steel sheet directly break. This cutting method can complete the cutting of a large batch of silicon steel sheets in a short time, but it requires large die casting equipment and molds, and the procurement cost and maintenance cost are high.

[0025] 3. Laser cutting Laser cutting is to irradiate the silicon steel sheet with a laser beam to make it locally melt or vaporize, and to complete the cutting of the silicon steel sheet by controlling the movement trajectory of the laser beam. Laser cutting can achieve high precision, high speed and high quality cutting effect.

[0026] REFERENCE Figures 1 to 9As shown, the laser cutting method of the stator and rotor steel sheet of an embodiment of the present application processes the stator and / or rotor by laser cutting, which is beneficial to improve the laser processing efficiency and finished product processing precision of the stator and / or rotor. Specifically, the laser cutting method of the stator and rotor steel sheet comprises the following steps: Step S100, a clamping tool 200 and a workbench 100 are made according to the preset size of the stator and / or rotor, the workbench 100 is used to position the clamping tool 200, and the clamping tool 200 is used to position the processing sheet; Step S200, a production model diagram is made according to the preset size of the stator and / or rotor; Step S300, the production model diagram is imported into a visual positioning laser cutting system, the related lines of the production model diagram are adjusted in the visual positioning laser cutting system, the processing sequence and processing path of the production model diagram are formulated, and a processing scheme is formed; Step S400, the clamping tool 200 is positioned and connected to the workbench 100, the processing sheet is positioned and connected to the clamping tool 200, and the processing sheet is laser cut according to the processing scheme to obtain a finished product; Step S500, the actual size of the finished product is measured, and the actual size is compared with the preset size; Step S600, when the deviation of the actual size from the preset size exceeds a preset value, the production model diagram is adjusted or remade according to the deviation, and the processing is re-performed according to the adjusted or remade production model diagram.

[0027] Referring to Figure 1 , Figure 8 and Figure 9 As shown in step S100, the laser cutting method of the stator and rotor steel sheet can make the clamping tool 200 and the workbench 100 according to the preset size of the stator and / or rotor. The clamping tool 200 can be set according to the size and shape of the stator and / or rotor to realize the positioning of the processing sheet on the horizontal X-axis and Y-axis.

[0028] Referring to Figure 1 , Figure 8 and Figure 9 The workbench 100 is used to position the clamping tool 200, and the clamping tool 200 is used to position the processing sheet, which can realize the center point coordinate of the to-be-cut processing sheet without repeated searching, can effectively reduce the processing time, and improve the processing efficiency.

[0029] Referring to Figure 1 , Figure 8 and Figure 9As shown in step S200, the worker can make a production model drawing on a two-dimensional drawing software according to the preset size of the stator and / or the rotor, for example, the worker can draw a production model drawing of the stator and / or the rotor on a CAD drawing software according to the preset size.

[0030] Referring to Figure 1 , Figure 8 and Figure 9 , in step S300, the worker can import the drawn production model drawing into the visual positioning laser cutting system, and adjust the related lines of the production model drawing in the laser visual positioning laser cutting system, so that the machining path along the related lines of the production model drawing is more complete and continuous.

[0031] Referring to Figure 1 , Figure 8 and Figure 9 , the laser cutting method of the stator-rotor steel sheet can formulate the machining sequence and machining path of the production model drawing through the visual positioning laser cutting system, thereby forming a specific machining scheme.

[0032] Referring to Figure 1 , Figure 8 and Figure 9 , in step S400, the worker can position and connect the clamping tool 200 to the workbench 100 to realize the connection of the clamping tool 200 and the workbench 100, and position and connect the machining material sheet to be machined to the clamping tool 200, thereby realizing the stable positioning and connection of the machining material sheet, so that the machining material sheet remains in a stable state during machining.

[0033] Referring to Figure 1 , Figure 8 and Figure 9 , then the worker can perform laser cutting on the machining material sheet according to the formulated machining scheme to obtain a machining finished product, which can be used to verify the accuracy of the original machining scheme or the original production model drawing.

[0034] Referring to Figure 1 , Figure 8 and Figure 9 , in steps S500 and S600, specifically, the worker can measure the actual size of the machining finished product by three-coordinate detection, and compare the actual size with the preset size, when the deviation between the actual size and the preset size exceeds the preset value, adjust or re-make the production model drawing according to the deviation, and re-machining according to the adjusted or re-made production model drawing.

[0035] Referring to Figure 1 , Figure 8 and Figure 9As shown, the laser cutting method of the stator and rotor steel sheets can adjust or re-produce the production model diagram according to the deviation, play a feedback compensation role, and process the stator and / or rotor according to the adjusted or re-produced production model diagram, so that the processing accuracy is higher.

[0036] Referring to Figure 1 , Figure 8 and Figure 9 , if the deviation between the actual size and the preset size is less than or equal to the preset value, it is determined that the measured finished product meets the processing requirements, and the processing scheme and the production model diagram meet the requirements.

[0037] Referring to Figure 2 , Figure 8 and Figure 9 , it can be understood that the visual positioning laser cutting system includes a laser and a red light emitter for indicating the processing track of the laser.

[0038] The laser cutting method of the stator and rotor steel sheets adjusts the related lines of the production model diagram in the visual positioning laser cutting system in step S300, and formulates the processing sequence and processing path of the production model diagram, including: Step S310, control the laser to move to a preset position relative to the clamping tool 200 in the up-down direction; Step S320, control the red light emitter to operate, and the red light emitter projects the processing track of the laser to the clamping tool 200; Step S330, adjust the processing track, so that the processing track coincides with the processing edge of the clamping tool 200, and obtain the center point coordinates of the processing of the processing sheet.

[0039] Referring to Figure 2 , Figure 8 and Figure 9 , specifically, the laser is arranged above the workbench 100, and when the clamping tool 200 is clamped at the upper end of the workbench 100, the laser is arranged above the clamping tool 200.

[0040] Referring to Figure 2 , Figure 8 and Figure 9 , after the visual positioning laser cutting system opens the production model diagram, the initial value of the center point coordinates can be viewed, switched to the laser processing mode, the height of the laser Z axis is reduced to an appropriate position, and after selecting the red light function under the machine test interface, it is switched to the laser processing interface, that is, the red light emitter is operated., select the frame function, check whether the laser red light exceeds the edge of the stator and rotor laser cutting tool by modifying the center point coordinate value, that is, the red light emitter projects the processing track of the laser to the clamping tool 200.

[0041] Referring to Figure 2 ,Figure 8 and Figure 9 As shown, when the machining trajectory projected by the red light coincides with the machining edge of the clamping fixture 200, the coordinates of the center point at this time are the coordinates of the center point of the machined part. If the machining trajectory projected by the red light exceeds the machining edge of the clamping fixture 200, the position of the center point of the machining trajectory needs to be readjusted.

[0042] Reference Figure 3 , Figure 8 and Figure 9 As shown, it is understood that the vision positioning laser cutting system includes control software; specifically, the control software is FTLasercutvision laser cutting software.

[0043] In step S300 of the laser cutting method for the stator and rotor steel sheets, the production model drawing is imported into the vision positioning laser cutting system, and the relevant lines of the production model drawing are adjusted in the vision positioning laser cutting system, including the following steps: Step S340: Convert the production model drawing into a format compatible with the control software, and open the production model drawing using the control software. Step S350: Merge relevant lines in the production model diagram in the control software to make the processing path continuous and complete.

[0044] Reference Figure 3 , Figure 8 and Figure 9 As shown, in step S340, the operator can use CAD drawing software to draw the production model drawing. After drawing the dimensions of the stator and rotor parts using CAD drawing software, save it as a DWG format file. Open the DWG file and save it as a DXF format file. Open the FTLasercutvision laser cutting software, switch the mode to graphic import mode, import the DXF file, and then change it to FTP format. At this point, the stator and rotor file format conversion is complete.

[0045] Reference Figure 3 , Figure 8 and Figure 9 As shown, in step S350, the operator can select to merge the relevant lines of the production model drawing in the processing mode interface of the FTLasercutvision laser cutting software, so that the production model drawing becomes a whole. For example, by merging the relevant lines, the breakpoints, intersecting or overlapping lines in the production model drawing can be eliminated.

[0046] Reference Figure 3 , Figure 8 and Figure 9As shown, the laser cutting method for stator and rotor steel sheets can make the processing path more continuous and complete by merging related lines, thereby processing the material sheets into stators and / or rotors through laser cutting.

[0047] Reference Figure 4 , Figure 8 and Figure 9 As shown, it can be understood that the laser cutting method for the stator and rotor steel sheets, in step S300, involves formulating the processing sequence and processing path of the production model drawing to form a processing plan, including the following steps: Step S360: Set the machining path and machining sequence according to the machining requirements of the stator and / or rotor; Step S370: Simulate the processing path to verify whether the processing sequence is accurate; Step S380: Once the processing sequence is determined to be accurate, a processing plan is formed.

[0048] Reference Figure 4 , Figure 8 and Figure 9 As shown, in the FTLasercutvision laser cutting software, the operator manually sets the processing path according to the processing requirements in the manual path setting interface and confirms the processing sequence. In the simulated processing path interface, the operator simulates the manually set processing path to verify the accuracy of the processing sequence. After confirming that there are no errors, the machine is started to cut and process the stator and rotor silicon steel sheets.

[0049] Reference Figure 4 , Figure 8 and Figure 9 As shown, if interference or defects that cannot be processed occur during the simulation of the processing path, it is determined that the processing sequence is inaccurate and the processing path and processing sequence need to be readjusted.

[0050] Reference Figure 4 , Figure 8 and Figure 9 As shown, the laser cutting method for the stator and rotor steel sheets can be verified by simulation to confirm the correctness of the processing sequence and path, i.e., to check the rationality of the processing scheme, until a reasonable processing scheme is output. This helps to reduce the processing steps of the stator and / or rotor, thereby improving the laser cutting efficiency of the stator and / or rotor.

[0051] Reference Figure 5 , Figure 8 and Figure 9 As shown, it can be understood that in step S600 of the laser cutting method for the stator and rotor steel sheets, when the deviation between the actual size and the preset size exceeds the preset value, the production model drawing is adjusted or remade according to the deviation, including the following steps: Step S610, when the single actual size deviates from the preset size beyond the preset value; Step S610, open the production model graph in the two-dimensional drawing software, offset the value of the corresponding line, integrate the related lines, delete the original corresponding line, and obtain the adjusted production model graph.

[0052] Referring to Figure 5 , Figure 8 and Figure 9 , if the staff determines that the single size of the stator-rotor silicon steel sheet measured by the three-coordinate detection deviates greatly from the required size tolerance of the drawing, the CAD format production model graph is imported into the CAD drawing software, and the following method can be used for adjustment: using the offset function in the CAD drawing software, this method is suitable for the actual size, the preset size or the deviation between the two, and is used when the actual size and the preset size are both integers. After using this method, the original graph is deleted.

[0053] Referring to Figure 5 , Figure 8 and Figure 9 , after the staff offsets, the related lines of the production model graph can be integrated to make the related lines of the production model graph complete and continuous, which can effectively specify the corresponding machining track.

[0054] Referring to Figure 6 , Figure 8 and Figure 9 , it can be understood that the laser cutting method of the stator-rotor steel sheet in step S600 adjusts or re-produces the production model graph according to the deviation when the actual size deviates from the preset size beyond the preset value, including the following steps: Step S630, when multiple actual sizes deviate from the preset size beyond the preset value; Step S640, open the production model graph in the two-dimensional drawing software, and re-draw the production model graph according to the deviation of the multiple actual sizes from the preset size.

[0055] Referring to Figure 6 , Figure 8 and Figure 9 , if the staff determines that the multiple sizes of the stator-rotor silicon steel sheet measured by the three-coordinate detection deviate greatly from the required size tolerance of the drawing, the CAD format production model graph is imported into the CAD drawing software, the original graph can be re-drawn on the center point of the original graph, and the original graph is deleted, thereby obtaining the re-drawn production model graph.

[0056] Referring to Figure 7 , Figure 8 and Figure 9As shown, it can be understood that the laser cutting method of the stator and rotor steel sheet in step S600, when the deviation of the actual size and the preset size exceeds the preset value, adjusts or re-produces the production model according to the deviation, including the following steps: Step S650, when the deviation of the actual size and the preset size exceeds the preset value; Step S660, open the production model in the two-dimensional drawing software, offset the value of the corresponding line, integrate the related lines, delete the original corresponding line, and obtain the adjusted production model.

[0057] Referring to Figure 7 , Figure 8 and Figure 9 As shown, if the staff determines that the size of the stator and rotor silicon steel sheet measured by the three-coordinate detection is greatly different from the required size tolerance of the drawing, the CAD format part drawing is imported into the CAD drawing software, and then the following method can be used for adjustment: using the single graphic modification size method, that is, offsetting the corresponding line, and then deleting the original graphic after integrating the related lines to obtain the adjusted production model.

[0058] Referring to Figure 7 , Figure 8 and Figure 9 As shown, it can be understood that the laser cutting method of the stator and rotor steel sheet in step S600, when the deviation of the actual size and the preset size exceeds the preset value, adjusts or re-produces the production model according to the deviation, including the following steps: When the deviation of the actual size and the preset size exceeds the preset value, the production model is adjusted or re-produced according to the deviation, including: Open the production model in the control software, perform shadow cutting on the corresponding line, the shadow cutting value is the deviation value, and obtain the adjusted production model; Or, open the production model in the control software, perform sun cutting on the corresponding line, the sun cutting value is the deviation value, and obtain the adjusted production model.

[0059] Referring to Figure 7 , Figure 8 and Figure 9 As shown, the staff opens the file option of the FTLasercutvision laser cutting software toolbar, opens the FTP format file, and switches to the processing mode. There are two cases of graphic size refinement: (1) single graphic size refinement, select the single graphic to be modified, open the toolbar tool option, find the cutting trajectory calculation, select the shadow cutting or sun cutting method and input the compensation value to be modified. (2) Multiple graphic size refinement, select the multiple graphics to be modified, open the toolbar tool option, find the cutting trajectory calculation, select the shadow cutting or sun cutting method and input the compensation value to be modified.

[0060] Referring to Figure 7 , Figure 8 and Figure 9 , it should be noted that the negative cutting is the adjustment of the actual cutting size within the pattern, which is generally used to reduce the pattern size. The positive cutting is the adjustment of the actual cutting size outside the pattern, which is generally used to enlarge the pattern size. The negative cutting and the positive cutting in the FT Laser cut vision laser cutting software adjust the cutting seal compensation size, and the compensation value can be accurate to 0.001.

[0061] Referring to Figure 8 and Figure 9 , it can be understood that the clamping tool 200 has the tool panel 210, the stator support plate 220 and the rotor support plate 230 arranged and connected in turn from outside to inside; the tool panel 210, the stator support plate 220 and the rotor support plate 230 are all located in the same horizontal plane.

[0062] Referring to Figure 8 and Figure 9 , the tool panel 210, the stator support plate 220 and the rotor support plate 230 are all laser cut from 2mm stainless steel plates, the outer dimension of the tool panel 210 is determined by the size of the silicon steel sheet blank, and generally the blank is centered, and each single side is lengthened by 10mm for positioning and clamping of the workbench 100; the stator support plate 220 and the rotor support plate 230 are respectively profiled according to the profile characteristics of the stator and the rotor, and are offset by 1mm along the cutting contour line to the center, which can not only avoid the laser cutting position, but also effectively support each feature structure, thereby ensuring the cutting accuracy.

[0063] Referring to Figure 8 and Figure 9 , the clamping tool 200 is designed according to the structural characteristics of the stator and the rotor of the same product, and the stator and the rotor silicon steel sheet laser cutting shares a set of cutting tool, and one piece of processing sheet can cut one stator and one rotor punching sheet, thereby reducing the tool switching and feeding time, and effectively improving the material utilization and cutting efficiency.

[0064] Referring to Figure 8 and Figure 9 , it can be understood that the workbench 100 includes a tool support block 130 and two support seats 110 parallel to each other; the two support seats 110 are respectively connected to the two ends of the tool support block 130, the upper end of the support seat 110 is provided with a sliding rail 120, the two ends of the tool support block 130 are respectively connected with the two sliding rails 120 in a sliding manner, and the tool panel 210 is fixed on the upper part of the tool support block 130.

[0065] Referring to Figure 8 and Figure 9As shown, when different products are cut and changed, only the clamping tool 200 needs to be replaced, and the workbench 100 of the device does not need to be replaced. The workbench 100 includes two tool support blocks 130, and the two opposite surfaces of the two tool support blocks 130 are respectively provided with grooves which can be used for clamping the tool panel 210 to achieve stable connection of the tool panel 210.

[0066] Referring to Figure 8 and Figure 9 Specifically, the tool support block 130 includes a lower clamping block 131 and an upper clamping block. The lower clamping block 131 is in sliding connection with the slide rail 120, and the upper clamping block and the lower clamping block 131 jointly enclose a groove. The upper clamping block and the lower clamping block 131 can be detachably connected through screw connection. The tool panel 210 is placed in the groove jointly enclosed by the upper clamping block and the lower clamping block 131, and the upper clamping block and the lower clamping block 131 are locked, so as to achieve locking of the tool support block 130 and the tool panel 210.

[0067] Referring to Figure 8 and Figure 9 The two tool support blocks 130 can slide along the slide rail 120 to achieve limiting of both ends of the tool panel 210. The workbench 100 further includes a stop block 140 which is slidingly installed on the slide rail 120. The tool support block 130 is limited by the stop block 140, and the tool panel 210 is limited in turn.

[0068] Referring to Figure 8 and Figure 9 The workbench 100 further includes a material falling box 150 which is arranged below the tool panel 210 and is slidingly connected between the support seats 110 on both sides. The material falling box 150 is of a drawer type structure, and is convenient to take and place. The sharp parts of the waste material can be avoided from scratching the workers during the process of collecting and processing the waste material, and the operation safety is improved.

[0069] Referring to Figure 8 and Figure 9 The workbench 100 further includes a clamp 160 which is installed on the support seat 110 and can limit the material falling box 150. During the cutting process, the clamp 160 is closed to fix the material falling box 150. When the waste material needs to be taken out, the clamp 160 is opened, and the material falling box 150 can be taken out.

[0070] Referring to Figure 8 and Figure 9 The workbench 100 further includes a dust collection fixing plate and a dust collection port 170. The two ends of the dust collection fixing plate are connected with the side surfaces of the support seats 110. The dust collection port 170 is in a horn shape structure. The large-diameter end of the dust collection port 170 is in communication with the dust collection fixing plate. The dust generated during the cutting process can be purified by an air purification device connected with the horn-shaped dust collection port 170.

[0071] Referring to Figure 8 and Figure 9 shown, in operation, the staff can place the edges of the tooling panel 210 at both ends in the grooves of the two tooling support blocks 130 respectively, and move the two tooling support blocks 130 along the slide rail 120 to the appropriate position, limit one of the tooling support blocks 130 by the stopper 140, and finally lock the tooling panel 210 by the tooling support blocks 130.

[0072] Referring to Figure 8 and Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 Figure 8 Figure 9 shown, then the staff places the processing material sheet that has been pre-opened and cut into single pieces on the upper surface of the tooling panel 210, puts the blanking box 150 under the tooling panel 210, closes the clamp 160 to fix the blanking box 150, and then starts the laser cutting, the stator and rotor silicon steel sheet after laser cutting is left on the upper surface of the tooling panel 210, the waste after cutting falls into the blanking box 150, the clamp 160 is opened, the blanking box 150 can be pulled out, and finally the dust falling into the blanking box 150 is sucked away for purification through the dust suction port 170.

[0073] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application.

Claims

1. A laser cutting method for stator and rotor steel sheets, applied to the laser cutting of stators and / or rotors, characterized in that, The laser cutting method for the stator and rotor steel sheets includes: According to the preset dimensions of the stator and / or the rotor, a clamping fixture (200) and a worktable (100) are manufactured. The worktable (100) is used to position the clamping fixture (200) and the clamping fixture (200) is used to position the processing sheet. A production model drawing is made according to the preset dimensions of the stator and / or the rotor; The production model diagram is imported into the vision positioning laser cutting system. The relevant lines of the production model diagram are adjusted in the vision positioning laser cutting system, and the processing sequence and processing path of the production model diagram are determined to form a processing plan. Position the clamping fixture (200) and connect it to the worktable (100), position the processing sheet and connect it to the clamping fixture (200), and perform laser cutting on the processing sheet according to the processing plan to obtain the finished product; Measure the actual dimensions of the finished product and compare the actual dimensions with the preset dimensions; When the deviation between the actual size and the preset size exceeds the preset value, the production model drawing is adjusted or remade according to the deviation, and the processing is carried out again according to the adjusted or remade production model drawing.

2. The laser cutting method for stator and rotor steel sheets according to claim 1, characterized in that, The visual positioning laser cutting system includes a laser and a red light emitter, the red light emitter being used to indicate the processing trajectory of the laser; The step of adjusting the relevant lines of the production model drawing in the vision positioning laser cutting system and determining the processing sequence and path of the production model drawing includes: Control the laser to move relative to the clamping fixture (200) in the vertical direction to a preset position; The operation of the red light emitter is controlled, and the red light emitter projects the processing trajectory of the laser onto the clamping fixture (200); Adjust the machining trajectory so that it coincides with the machining edge of the clamping fixture (200) to obtain the center point coordinates of the machining of the machining material.

3. The laser cutting method for stator and rotor steel sheets according to claim 1, characterized in that, The visual positioning laser cutting system includes control software; The step of importing the production model drawing into the vision positioning laser cutting system and adjusting the relevant lines of the production model drawing in the vision positioning laser cutting system includes: The production model diagram is converted into a format compatible with the control software, and the production model diagram is opened using the control software. The relevant lines in the production model diagram are merged in the control software to make the processing path continuous and complete.

4. The laser cutting method for stator and rotor steel sheets according to claim 1, characterized in that, The process involves defining the processing sequence and path for the production model diagram to form a processing plan, including: The machining path and machining sequence are set according to the machining requirements of the stator and / or the rotor; The processing path is simulated to verify whether the processing sequence is accurate; Once the processing sequence is determined to be accurate, the processing plan is formed.

5. The laser cutting method for stator and rotor steel sheets according to claim 1, characterized in that, The step of adjusting or remaking the production model drawing based on the deviation when the actual size deviates from the preset size by a preset value includes: When the deviation between a single actual size and the preset size exceeds the preset value; Open the production model diagram in a 2D drawing software, offset the corresponding lines by the deviation value, integrate the relevant lines, delete the original corresponding lines, and obtain the adjusted production model diagram.

6. The laser cutting method for stator and rotor steel sheets according to claim 1, characterized in that, The step of adjusting or remaking the production model drawing based on the deviation when the actual size deviates from the preset size by a preset value includes: When the deviations of multiple actual dimensions from the preset dimensions exceed the preset value; Open the production model drawing in the 2D drawing software, and redraw the production model drawing based on the deviations between the actual dimensions and the preset dimensions.

7. The laser cutting method for stator and rotor steel sheets according to claim 1, characterized in that, The step of adjusting or remaking the production model drawing based on the deviation when the actual size deviates from the preset size by a preset value includes: When the deviations of multiple actual dimensions from the preset dimensions exceed the preset value; Open the production model diagram in a 2D drawing software, offset multiple corresponding lines by the deviation value, integrate the relevant lines, delete the original corresponding lines, and obtain the adjusted production model diagram.

8. The laser cutting method for stator and rotor steel sheets according to claim 3, characterized in that, The step of adjusting or remaking the production model drawing based on the deviation when the actual size deviates from the preset size by a preset value includes: Open the production model diagram in the control software, and perform intaglio cutting on the corresponding lines. The value of the intaglio cutting is the value of the deviation, thus obtaining the adjusted production model diagram. Alternatively, the production model diagram can be opened in the control software, and the corresponding lines can be convexly cut, with the convex cut value being the deviation value, to obtain the adjusted production model diagram.

9. The laser cutting method for stator and rotor steel sheets according to claim 1, characterized in that, The clamping fixture (200) has a fixture panel (210), a stator support plate (220) and a rotor support plate (230) arranged and connected from the outside to the inside; the fixture panel (210), the stator support plate (220) and the rotor support plate (230) are all located on the same horizontal plane.

10. The laser cutting method for stator and rotor steel sheets according to claim 9, characterized in that, The workbench (100) includes a tooling support block (130) and two parallel support seats (110); the two support seats (110) are respectively connected to the two ends of the tooling support block (130), the upper end of the support seat (110) is provided with a slide rail (120), the two ends of the tooling support block (130) are respectively slidably connected to the two slide rails (120), and the tooling panel (210) is fixed on the upper part of the tooling support block (130).

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