An automobile generator stator lamination device

Abstract

The application is suitable for the technical field of stator lamination and provides an automobile generator stator lamination device, which comprises a workbench, the one side of the upper end face of the workbench is fixedly provided with a guide rail, the one side of the guide rail is provided with a plurality of limiting plates, all the limiting plates are arranged in a circle; the workbench is fixedly connected with a support frame, the support frame is slidingly connected with a moving seat, a second electric rod is arranged between the support frame and the moving seat, the moving seat is fixedly connected with a first electric rod, the first electric rod is fixedly connected with a first motor, the first motor is fixedly connected with a limiting seat through a fixing frame; a clamping driving mechanism for fixing silicon steel sheets is arranged at the middle position of the limiting seat. Through the design of the upper scraping plate and the rotatable lower scraping plate, burrs on the upper and lower surfaces of the silicon steel sheets can be effectively removed, the problems of uneven lamination thickness and local gap caused by burrs are reduced from the source, and the stacking coefficient is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of stator laminations, and particularly relates to an automobile generator stator lamination device. BACKGROUND

[0002] The manufacturing precision of an automobile generator stator directly determines the performance, efficiency and NVH (noise, vibration and harshness) characteristics of the generator. The stator core is formed by laminating a large number of silicon steel sheets, and the precision control in the lamination process is a long-term technical difficulty faced by the industry.

[0003] The traditional lamination process usually has the following problems: first, burrs are generated at the edges of the punched silicon steel sheets, and if not removed, these burrs will cause the overall thickness of the laminated core to exceed the standard, gaps between layers to occur, the lamination coefficient to decrease, and the eddy current loss to increase and local short circuit to occur. The prior art usually removes the burrs in advance or "flattens" the burrs by increasing the pressing force, the former of which increases the production process and cost, and the latter of which may damage the insulation layer of the silicon steel sheet and introduce internal stress. Second, in the lamination process, due to the micron-level tolerance of the thickness of the single silicon steel sheet and the uneven distribution of the burrs, the cumulative error of the lamination will cause the whole core to be tilted and wavy, which seriously affects the concentricity and overall quality of the stator. Finally, if the metal dust generated during the polishing or lamination process cannot be removed in time, it will pollute the working environment, affect the service life of the equipment, and even cause insulation hazards in the core.

[0004] Therefore, there is an urgent need in the art for a stator lamination device that can integrate burr removal and dust removal functions, and can detect and compensate the lamination thickness error in real time to realize high-precision and automated lamination. SUMMARY

[0005] The purpose of the embodiment of the application is to provide an automobile generator stator lamination device, which aims to solve the problem of large lamination thickness error of the existing automobile generator stator lamination device.

[0006] The application is implemented as follows: an automobile generator stator lamination device, comprising a workbench, a guide rail is fixedly arranged on one side of the upper end face of the workbench, a plurality of limiting plates are arranged on one side of the guide rail, and all the limiting plates are arranged in a circle; the workbench is fixedly connected with a support frame, the support frame is slidingly connected with a moving seat, a second electric rod is arranged between the support frame and the moving seat, the moving seat is fixedly connected with a first electric rod, the first electric rod is fixedly connected with a first motor, and the first motor is fixedly connected with a limiting seat through a fixing frame;

[0007] The middle part of the limiting seat is provided with a clamping driving mechanism for fixing the silicon steel sheet, the clamping driving mechanism can also drive the silicon steel sheet to rotate, the lower side of the limiting seat is provided with a surface treatment mechanism capable of polishing the upper and lower surfaces of the silicon steel sheet, and the limiting seat is also connected with a filtering mechanism for dust absorption.

[0008] Further comprising a position adjusting system capable of detecting the surface thickness deviation of the silicon steel sheet clamped by the clamping driving mechanism, and adjusting the drop position of the silicon steel sheet clamped by the clamping driving mechanism according to the overall height deviation of all silicon steel sheets stacked in the limiting plate.

[0009] Further technical solutions, the clamping driving mechanism includes a second motor, a rotating column, a elastic limiting plate and a clamping assembly;

[0010] The middle part of the limiting seat is fixedly connected with a second motor, the output shaft of the second motor is fixedly connected with a rotating column, the rotating column is arranged with a plurality of elastic limiting plates in the axial direction, the end face of the elastic limiting plate away from the rotating column is a slope, the lower side of the elastic limiting plate is provided with a clamping assembly, and the clamping assembly can clamp and fix the silicon steel sheet from the inside.

[0011] Further technical solutions, the clamping assembly includes a sliding column, a spring and an electric telescopic rod;

[0012] The sliding column is vertically slidingly connected in the inner cavity of the rotating column, the upper and lower side end faces of the sliding column and the inner end face of the rotating column are both connected with springs, the sliding column is arranged with an electric telescopic rod in the circumferential direction, and the electric telescopic rods are collectively electrically connected with the internal power supply of the sliding column.

[0013] Further technical solutions, the surface treatment mechanism includes an upper scraper, a rotating assembly, a lower scraper and a fixed plate;

[0014] The bottom surface of the limiting seat is fixedly connected with a plurality of upper scrapers, the side wall of the limiting seat is fixedly connected with two fixed plates, each fixed plate is connected with a rotating assembly, the rotating assembly is fixedly connected with a lower scraper, the inside of the limiting seat is equally spaced with a plurality of first electromagnets, the inside of the rotating assembly is provided with a second electromagnet, and all the first electromagnets and the second electromagnets are electrically connected with the PLC controller.

[0015] Further technical solutions, the rotating assembly includes a rotating pipe, a rotating seat and a third motor;

[0016] The rotating pipe is rotatably connected with the fixed plate, the lower end of the rotating pipe is fixedly connected with a rotating seat, the lower scraper is fixedly connected with the upper end face of the rotating seat, the fixed plate is fixedly connected with a third motor, and the output shaft of the third motor is fixedly connected with the rotating pipe;

[0017] The lower scraper is provided with a flow guide hole, the flow guide hole is communicated to the inside of the limiting seat through a rotating seat, a rotating pipe and a fixed plate, and the second electromagnet is arranged in the rotating seat.

[0018] Further technical solutions, the filtering mechanism comprises a filtering box, an air pump and a dust suction pipe.

[0019] The lower end surface of the limiting seat is provided with a plurality of air inlet holes communicated with the inner cavity of the limiting seat, the upper end surface of the limiting seat is provided with a filtering box, the inner top surface of the limiting seat is fixedly connected with a plurality of dust suction pipes, all the dust suction pipes are communicated with the filtering box through the flow guide channels in the inner wall of the limiting seat, and the filtering box is communicated with the air pump.

[0020] Further technical solutions, the position adjusting system comprises:

[0021] The data acquisition module comprises a first laser position sensor, a second laser position sensor and a third laser position sensor.

[0022] The lower end surfaces of the two fixed plates are provided with the first laser position sensors, and the upper and lower end surfaces of the two rotating seats are provided with the second laser position sensors and the third laser position sensors respectively, and the two first laser position sensors, the two second laser position sensors and the two third laser position sensors are symmetrically arranged on the two sides of the clamping driving mechanism, and the second laser position sensor can be rotated to a position directly below the upper first laser position sensor.

[0023] The data processing module can calculate the thickness deviation of the symmetric positions on both sides of the silicon steel sheet clamped by the clamping driving mechanism and the height deviation of the symmetric positions on both sides of the silicon steel sheet accumulated in the limiting plate according to the data collected by the data acquisition module.

[0024] The control module can control the first electric rod, the first motor and the clamping driving mechanism, so as to adjust the falling position of the silicon steel sheet clamped by the clamping driving mechanism, so that the overall height deviation of the silicon steel sheet accumulated in the limiting plate is reduced after the silicon steel sheet clamped by the clamping driving mechanism falls.

[0025] Compared with the prior art, the beneficial effects of the present application are:

[0026] The present application innovatively integrates the functions of clamping and fixing, double-sided polishing, dust absorption and intelligent stacking in one station. After the clamping driving mechanism fixes the silicon steel sheet, the surface treatment mechanism arranged above and below can polish and deburr the upper and lower surfaces of the silicon steel sheet at the same time, and the filtering mechanism can absorb and remove the dust generated in real time. This eliminates the waiting time of material transfer and separate processing in the traditional process, greatly improves the production efficiency, and avoids the precision loss caused by secondary clamping.

[0027] The present application can effectively remove burrs on the upper and lower surfaces of silicon steel sheets through the design of the upper scraper and the rotatable lower scraper, thereby reducing the uneven thickness and local gap problems of the laminated sheets caused by the burrs from the source, improving the lamination coefficient, and reducing the iron loss and electromagnetic noise in subsequent operation.

[0028] The core advantage of the present application lies in the introduction of a position adjustment system based on laser thickness measurement. This system can not only measure the thickness deviation of the two sides of the silicon steel sheet to be laminated in real time, but also detect the cumulative height deviation of the two sides of the laminated core stack. The data processing module calculates the required orientation and angle according to the above, and the control module drives the first electric rod and the first motor to fine-tune the lower position and posture of the clamping drive mechanism. This closed-loop control system can dynamically compensate for the thickness error and cumulative error of the single sheet, ensuring that each silicon steel sheet is placed in the most ideal position, thereby effectively preventing the overall inclination of the core and significantly improving the lamination precision and the overall integrity of the core. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structural schematic diagram of the present application;

[0030] Figure 2 is a connection schematic diagram of the first motor and the limit seat in the present application;

[0031] Figure 3 is a structural schematic diagram of the clamping drive mechanism;

[0032] Figure 4 is a structural schematic diagram of the filtering mechanism;

[0033] Figure 5 is Figure 4 is an enlarged schematic diagram of the A area in the middle;

[0034] Figure 6 is a structural schematic diagram of the surface treatment mechanism;

[0035] Figure 7 is a structural schematic diagram of the rotating assembly.

[0036] In the attached diagram: 1. Workbench; 2. Support frame; 3. Movable seat; 4. Electric rod No. 1; 5. Motor No. 1; 6. Fixed frame; 7. Clamping drive mechanism; 71. Motor No. 2; 72. Rotating column; 73. Elastic limit plate; 74. Clamping assembly; 741. Sliding column; 742. Spring; 743. Electric telescopic rod; 8. Filtering mechanism; 81. Filter box; 82. Air pump; 83. Dust suction pipe; 9. Surface treatment mechanism; 91. Upper scraper; 92. Rotating assembly; 921. Rotating tube; 922. Rotating seat; 923. Motor No. 3; 93. Lower scraper; 94. Fixing plate; 95. Electromagnet No. 1; 96. Electromagnet No. 2; 10. Limiting seat; 11. Guide rail; 12. Limiting plate; 13. Electric rod No. 2; 14. Air inlet; 15. Laser position sensor No. 1; 16. Laser position sensor No. 2; 17. Laser position sensor No. 3. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0038] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0039] like Figures 1-7 As shown, an embodiment of the present invention provides a stator lamination device for an automotive generator, including a workbench 1. A guide rail 11 is fixedly arranged on one side of the upper surface of the workbench 1. A plurality of limiting plates 12 are arranged on one side of the guide rail 11, and all the limiting plates 12 are arranged in a circle. A support frame 2 is fixedly connected to the workbench 1. A movable seat 3 is slidably connected to the support frame 2. A second electric rod 13 is arranged between the support frame 2 and the movable seat 3. A first electric rod 4 is fixedly connected to the movable seat 3. A first motor 5 is fixedly connected to the first electric rod 4. The first motor 5 is fixedly connected to a limiting seat 10 through a fixed frame 6.

[0040] The limiting seat 10 is provided with a clamping drive mechanism 7 for fixing the silicon steel sheet at the middle position. The clamping drive mechanism 7 can also drive the silicon steel sheet to rotate. The lower side of the limiting seat 10 is provided with a surface treatment mechanism 9 that can polish the upper and lower surfaces of the silicon steel sheet. The limiting seat 10 is also connected to a filter mechanism 8 for absorbing dust.

[0041] It also includes a position adjustment system that can detect the surface thickness deviation of the silicon steel sheet held by the clamping drive mechanism 7, and adjust the lowering position of the silicon steel sheet held by the clamping drive mechanism 7 according to the overall height deviation of all the silicon steel sheets stacked in the limiting plate 12.

[0042] In this embodiment, the second electric rod 13 drives the moving base 3 to move, and when the limiting seat 10 moves to the upper side of the guide rail 11, the first electric rod 4 drives the limiting seat 10 to lower, and the clamping driving mechanism 7 is inserted into the center of the silicon steel sheet on the guide rail 11, at this time, the clamping driving mechanism 7 fixes the silicon steel sheet from the middle of the silicon steel sheet;

[0043] Then the first electric rod 4 is retracted and reset, and the second electric rod 13 drives the silicon steel sheet to move to the upper side of the limiting plate 12, and the clamping driving mechanism 7 drives the silicon steel sheet to rotate, and the surface treatment mechanism 9 grinds the burrs on the upper and lower surfaces of the silicon steel sheet, and the filtering mechanism 8 absorbs the dust generated during grinding;

[0044] After grinding is completed, the position adjusting system can detect the surface thickness deviation of the silicon steel sheet clamped by the clamping driving mechanism 7, and adjust the lowering position of the silicon steel sheet clamped by the clamping driving mechanism 7 according to the overall height deviation of all silicon steel sheets stacked in the limiting plate 12, so that during the stacking of the silicon steel sheets, the overall height deviation of all silicon steel sheets in the limiting plate 12 caused by the thickness deviation of the silicon steel sheets is reduced, and the fit between the silicon steel sheets in the limiting plate 12 is improved.

[0045] As shown in Figure 3 As a preferred embodiment of the present application, the clamping driving mechanism 7 comprises a second motor 71, a rotating column 72, a elastic limiting plate 73 and a clamping assembly 74.

[0046] The middle part of the limiting seat 10 is fixedly connected with the second motor 71, the output shaft of the second motor 71 is fixedly connected with the rotating column 72, the rotating column 72 is arranged with a plurality of elastic limiting plates 73 along the axial direction, the end face of the elastic limiting plate 73 away from the rotating column 72 is a slope, and the lower side of the elastic limiting plate 73 is provided with the clamping assembly 74, which can clamp and fix the silicon steel sheet from the inside.

[0047] In this embodiment, when the silicon steel sheet in the guide rail 11 is picked up and fixed, at this time, the first electric rod 4 drives the clamping driving mechanism 7 to lower, and the rotating column 72 is inserted into the center of the silicon steel sheet, and when the upper surface of the silicon steel sheet is elastically abutted by each elastic limiting plate 73, the clamping driving mechanism 7 stops lowering at this time, and all clamping assemblies 74 clamp and fix the inner wall of the silicon steel sheet.

[0048] As shown in Figure 5 As a preferred embodiment of the present application, the clamping assembly 74 comprises a sliding column 741, a spring 742 and an electric telescopic rod 743.

[0049] The sliding column 741 is vertically slidably connected to the inner cavity of the rotating column 72. Springs 742 are connected between the upper and lower end faces of the sliding column 741 and the inner end face of the rotating column 72. An electric telescopic rod 743 is arranged circumferentially on the sliding column 741. The electric telescopic rod 743 is electrically connected to the internal power source of the sliding column 741.

[0050] In this embodiment, in the clamping assembly 74, the power supply is turned on to energize all the electric telescopic rods 743, and all the electric telescopic rods 743 extend simultaneously to clamp and fix the inner wall of the silicon steel sheet.

[0051] like Figure 6 As shown, in a preferred embodiment of the present invention, the surface treatment mechanism 9 includes an upper scraper 91, a rotating assembly 92, a lower scraper 93, and a fixing plate 94.

[0052] The bottom surface of the limiting seat 10 is fixedly connected to multiple upper scrapers 91. The side wall of the limiting seat 10 is symmetrically fixedly connected to two fixing plates 94. Each fixing plate 94 is connected to a rotating assembly 92. The rotating assembly 92 is fixedly connected to a lower scraper 93. Multiple first electromagnets 95 are evenly distributed inside the limiting seat 10. Each rotating assembly 92 is equipped with a second electromagnet 96. All first electromagnets 95 and second electromagnets 96 are electrically connected to the PLC controller.

[0053] In this embodiment, when the silicon steel sheet is being polished, the first electromagnet 95 is energized. Since the silicon steel sheet has excellent magnetic permeability, all the first electromagnets 95 can generate an upward attraction force on the silicon steel sheet. The silicon steel sheet contacts and is squeezed by the upper scraper 91. At this time, the second motor 71 is started to drive the silicon steel sheet to rotate. All the upper scrapers 91 can effectively remove impurities and burrs on the surface of the silicon steel sheet, thereby improving the flatness of the surface of the silicon steel sheet.

[0054] After the upper surface of the silicon steel sheet is polished, the rotating assembly 92 is started to drive the lower scraper 93 to rotate to the lower side of the silicon steel sheet. All the No. 2 electromagnets 96 are activated to conduct electricity. At this time, under the attraction of all the No. 2 electromagnets 96, the silicon steel sheet moves downward and comes into contact with the two lower scrapers 93. When the silicon steel sheet rotates, all the lower scrapers 93 polish the lower surface of the silicon steel sheet.

[0055] Furthermore, during the aforementioned polishing process, by altering the current intensity of electromagnets 95 and 96 when they are energized, the pressure between the silicon steel sheet and the upper scraper 91 or lower scraper 93 can be infinitely adjusted, thereby improving the surface treatment effect of the silicon steel sheet and preventing scratches on the outer surface of the silicon steel sheet when the external pressure is too high, or incomplete removal of burrs from the surface of the silicon steel sheet when the external pressure is too low.

[0056] Further, when the burrs on the surface of the silicon steel sheet are removed, since the silicon steel sheet has excellent magnetic conductivity, when the removed silicon steel sheet powder contacts the surrounding powered equipment, the silicon steel sheet powder is easily adsorbed on the surface of the surrounding equipment at this time, and in the present application, since the No. 1 electromagnet 95 and the No. 2 electromagnet 96 have strong magnetism, when the burrs are cleaned, the falling silicon steel sheet powder can be adsorbed and concentrated on the surface of the No. 1 electromagnet 95 and the No. 2 electromagnet 96, avoiding the adsorption of too much dust and impurities on the remaining equipment parts during the machining process.

[0057] As shown in Figure 7 As a preferred embodiment of the present application, the rotating assembly 92 includes a rotating pipe 921, a rotating seat 922, and a No. 3 motor 923.

[0058] The rotating pipe 921 is rotatably connected to the fixed plate 94, the lower end of the rotating pipe 921 is fixedly connected to the rotating seat 922, the lower scraper 93 is fixedly connected to the upper end surface of the rotating seat 922, the fixed plate 94 is fixedly connected to the No. 3 motor 923, and the output shaft of the No. 3 motor 923 is fixedly connected to the rotating pipe 921.

[0059] The lower scraper 93 is provided with a flow guide hole, the flow guide hole is communicated to the inside of the limiting seat 10 through the rotating seat 922, the rotating pipe 921, and the fixed plate 94, and the No. 2 electromagnet 96 is arranged in the rotating seat 922.

[0060] In this embodiment, the No. 3 motor 923 is started, the No. 3 motor 923 can drive the rotating pipe 921 to rotate, the rotating pipe 921 drives the lower scraper 93 to move to the lower side of the silicon steel sheet through the rotating seat 922, and all the lower scrapers 93 can perform surface treatment on the lower end surface of the silicon steel sheet.

[0061] As shown in Figure 4 As a preferred embodiment of the present application, the filtering mechanism 8 includes a filtering box 81, an air pump 82, and a dust suction pipe 83.

[0062] The lower end surface of the limiting seat 10 is provided with a plurality of air inlet holes 14 communicated with the inner cavity of the limiting seat 10, the upper end surface of the limiting seat 10 is provided with the filtering box 81, the inner top surface of the limiting seat 10 is fixedly connected to a plurality of dust suction pipes 83, all the dust suction pipes 83 are communicated with the filtering box 81 through the flow guide channels in the inner wall of the limiting seat 10, and the filtering box 81 is communicated with the air pump 82.

[0063] In this embodiment, the air pump 82 is started to suck air outwards. When the surface treatment is performed on the upper end surface of the silicon steel sheet, dust and impurities can enter the limiting seat 10 through the air inlet hole 14 and enter the filter box 81 through the dust suction pipe 83 for filtration, and the silicon steel powder falling off can be adsorbed on the first electromagnet 95 for collection; when the surface treatment is performed on the lower end surface of the silicon steel sheet, the dust and impurities enter the flow guide holes on the lower scraper 93 and enter the limiting seat 10 under the action of wind, and are finally filtered in the filter box 81, and the silicon steel powder falling off is adsorbed and collected on the second electromagnet 96 in the rotating seat 922.

[0064] When the silicon steel sheet is completed, the first electromagnet 95 and the second electromagnet 96 are both powered off, and the silicon steel powder impurities gathered around the first electromagnet 95 and the second electromagnet 96 can be sucked into the filter box 81 under the action of wind for collection, so as to ensure the cleanliness of the surface of the first electromagnet 95 and the second electromagnet 96, and avoid that the adsorbed silicon steel powder is too large to affect the magnetic attraction effect.

[0065] As shown in Figure 2 and Figure 7 As a preferred embodiment of the present application, the position adjusting system comprises: a data acquisition module comprising a first laser position sensor 15, a second laser position sensor 16 and a third laser position sensor 17;

[0066] The lower end surface of each of the two fixed plates 94 is provided with a first laser position sensor 15, and the upper and lower end surfaces of the two rotating seats 922 are respectively provided with a second laser position sensor 16 and a third laser position sensor 17, and the two first laser position sensors 15, the two second laser position sensors 16 and the two third laser position sensors 17 are symmetrically arranged on both sides of the clamping driving mechanism 7, and the second laser position sensor 16 can be rotated to a position directly below the upper first laser position sensor 15;

[0067] One first laser position sensor 15 and one second laser position sensor 16 vertically opposite to each other form a group, and the thickness of the silicon steel sheet can be measured by cooperation of the first laser position sensor 15 and the second laser position sensor 16, and the third laser position sensor 17 can measure the height of the uppermost silicon steel sheet in the limiting plate 12;

[0068] The data processing module calculates the thickness deviation of the silicon steel sheet at the symmetric position on both sides clamped by the clamping driving mechanism 7, and calculates the height deviation of the silicon steel sheet at the symmetric position on both sides accumulated in the limiting plate 12 according to the data collected by the data acquisition module.

[0069] A control module is capable of controlling the first electric rod 4, the first motor 5 and the clamping driving mechanism 7, so as to adjust the falling position of the silicon steel sheet clamped by the clamping driving mechanism 7, so that the overall height deviation of the silicon steel sheets accumulated in the limiting plate 12 is reduced after the silicon steel sheet clamped by the clamping driving mechanism 7 falls.

[0070] In this embodiment, when the clamping driving mechanism 7 drives the silicon steel sheet to rotate, the two groups of first laser position sensors 15 and second laser position sensors 16 on the surface treatment mechanism 9 remain stationary, and each group of first laser position sensors 15 and second laser position sensors 16 can measure the thickness of the silicon steel sheet (the distance between the first laser position sensor 15 and the second laser position sensor 16 minus the distance from the first laser position sensor 15 to the upper surface of the silicon steel sheet, and then minus the distance from the second laser position sensor 16 to the lower surface of the silicon steel sheet, to obtain the thickness of the silicon steel sheet at this position). Since the two groups of first laser position sensors 15 and second laser position sensors 16 are symmetrically arranged relative to the center position of the silicon steel sheet, when the silicon steel sheet rotates, the two groups of first laser position sensors 15 and second laser position sensors 16 can measure the thickness of the symmetric positions on the side of the silicon steel sheet, and calculate the thickness deviation between the symmetric positions on the side of the silicon steel sheet,

[0071] The maximum thickness deviation between the symmetric positions on the side of the silicon steel sheet is detected and recorded.

[0072] The position of the silicon steel sheet remains stationary, and when the first motor 5 drives the surface treatment mechanism 9 to rotate through the limiting seat 10, the two third laser position sensors 17 rotate around the silicon steel sheet at the same time. At this time, the rotating third laser position sensors 17 can measure the height of the silicon steel sheets accumulated in the limiting plate 12 at different positions. Similarly, since the two third laser position sensors 17 are symmetrically arranged relative to the center position of the silicon steel sheet, when the two third laser position sensors 17 rotate at the same time, the height of the symmetric positions of the silicon steel sheets accumulated in the limiting plate 12 can be measured, and the height deviation of the symmetric positions of the silicon steel sheets accumulated in the limiting plate 12 is calculated. The maximum height deviation of the symmetric positions of the silicon steel sheets accumulated in the limiting plate 12 is detected and recorded.

[0073] Keep two three laser position sensor 17 in the maximum height deviation position of the top, start clamping drive mechanism 7 drive silicon steel sheet rotation, until the silicon steel sheet side maximum thickness deviation is in the middle position of two groups 15 and 16, and make the silicon steel sheet thickness larger side and the lower side of the silicon steel sheet height accumulated in the limit plate 12 alignment, at this time start the first electric pole 4 drive clamping drive mechanism 7 clamped silicon steel sheet falls to the limit plate 12. Through the position adjusting system can detect the surface thickness deviation of the silicon steel sheet clamped by the clamping drive mechanism 7, and adjust the drop position of the silicon steel sheet clamped by the clamping drive mechanism 7 according to the overall height deviation of all silicon steel sheets stacked in the limit plate 12.

[0074] In the process of detecting the thickness of silicon steel sheet, through the cooperation of the first electromagnet 95 and the second electromagnet 96, not only can the distance between the silicon steel sheet and the upper scraper 91 and the lower scraper 93 be controlled by magnetic force, avoiding the collision between the silicon steel sheet and the upper scraper 91 or the lower scraper 93 to generate vibration, affecting the detection accuracy of the thickness of the silicon steel sheet, but also can suppress the vibration in the process of rotating the silicon steel sheet under the magnetic force of the first electromagnet 95 and the second electromagnet 96, and improve the stability of the silicon steel sheet when rotating.

[0075] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A stator lamination device for an automotive generator, comprising a workbench (1), characterized in that, The workbench (1) is fixedly connected to a support frame (2), the support frame (2) is slidably connected to a movable seat (3), the movable seat (3) is fixedly connected to a first electric rod (4), the first electric rod (4) is fixedly connected to a first motor (5), and the first motor (5) is fixedly connected to a limit seat (10) through a fixed frame (6). The limiting seat (10) is provided with a clamping drive mechanism (7) for fixing the silicon steel sheet at the middle position. The clamping drive mechanism (7) can also drive the silicon steel sheet to rotate. The limiting seat (10) is provided with a surface treatment mechanism (9) for polishing the upper and lower surfaces of the silicon steel sheet at the lower side. The limiting seat (10) is also connected to a filter mechanism (8) for absorbing dust. It also includes a position adjustment system, which can detect the surface thickness deviation of the silicon steel sheet held by the clamping drive mechanism (7) and adjust the lowering position of the silicon steel sheet held by the clamping drive mechanism (7) according to the overall height deviation of all the silicon steel sheets stacked in the limiting plate (12); The surface treatment mechanism (9) includes an upper scraper (91), a rotating assembly (92), a lower scraper (93), and a fixed plate (94); the bottom surface of the limiting seat (10) is fixedly connected to multiple upper scrapers (91), and the side wall of the limiting seat (10) is symmetrically fixedly connected to two fixed plates (94), each fixed plate (94) is connected to a rotating assembly (92), the rotating assembly (92) is fixedly connected to a lower scraper (93), and the interior of the limiting seat (10) is evenly spaced. The rotating assembly (92) is equipped with multiple No. 1 electromagnets (95), and each of the rotating assemblies (92) is equipped with a No. 2 electromagnet (96). All No. 1 electromagnets (95) and No. 2 electromagnets (96) are electrically connected to the PLC controller. The rotating assembly (92) includes a rotating tube (921), a rotating seat (922), and a No. 3 motor (923). The rotating tube (921) is rotatably connected to the fixed plate (94), and the lower end of the rotating tube (921) is fixedly connected to the rotating seat (922). The position adjustment system includes: The data acquisition module includes a first laser position sensor (15), a second laser position sensor (16), and a third laser position sensor (17). The lower end face of the two fixed plates (94) is provided with a first laser position sensor (15), and the upper and lower end faces of the two rotating seats (922) are respectively provided with a second laser position sensor (16) and a third laser position sensor (17). The two first laser position sensors (15), the two second laser position sensors (16) and the two third laser position sensors (17) are symmetrically arranged on both sides of the clamping drive mechanism (7). The second laser position sensor (16) can rotate to the position directly below the first laser position sensor (15) above. The data processing module is able to calculate the thickness deviation of the silicon steel sheet held by the clamping drive mechanism (7) at the symmetrical positions on both sides based on the data collected by the data acquisition module, and calculate the height deviation of the silicon steel sheet stacked in the limiting plate (12) at the symmetrical positions on both sides. The control module can control the first electric rod (4), the first motor (5) and the clamping drive mechanism (7), thereby adjusting the falling position of the silicon steel sheet clamped by the clamping drive mechanism (7).

2. The stator lamination device for an automotive generator according to claim 1, characterized in that, The clamping drive mechanism (7) includes a second motor (71), a rotating column (72), an elastic limiting plate (73), and a clamping assembly (74). A second motor (71) is fixedly connected to the middle of the limiting seat (10). The output shaft of the second motor (71) is fixedly connected to a rotating column (72). Multiple elastic limiting plates (73) are arranged along the axial direction of the rotating column (72). The end face of the elastic limiting plate (73) away from the rotating column (72) is inclined. A clamping assembly (74) is provided on the lower side of the elastic limiting plate (73). The clamping assembly (74) can clamp and fix the silicon steel sheet from inside.

3. The stator lamination device for an automotive generator according to claim 2, characterized in that, The clamping assembly (74) includes a sliding column (741), a spring (742), and an electrically telescopic rod (743). The sliding column (741) is vertically slidably connected in the inner cavity of the rotating column (72). Springs (742) are connected between the upper and lower end faces of the sliding column (741) and the inner end face of the rotating column (72). An electric telescopic rod (743) is arranged circumferentially on the sliding column (741). The electric telescopic rod (743) is electrically connected to the power source inside the sliding column (741).

4. The stator lamination device for an automotive generator according to claim 1, characterized in that, The lower scraper (93) is fixedly connected to the upper end face of the rotating seat (922), and the fixed plate (94) is fixedly connected to the No. 3 motor (923). The output shaft of the No. 3 motor (923) is fixedly connected to the rotating tube (921). The lower scraper (93) is provided with a guide hole, which is connected to the inside of the limiting seat (10) through the rotating seat (922), the rotating tube (921), and the fixed plate (94). The second electromagnet (96) is set inside the rotating seat (922).

5. The stator lamination device for an automotive generator according to claim 1, characterized in that, The filtration mechanism (8) includes a filter box (81), an air pump (82), and a suction pipe (83); The lower end face of the limiting seat (10) is provided with a plurality of air inlets (14) communicating with the inner cavity of the limiting seat (10). The upper end face of the limiting seat (10) is provided with a filter box (81). The inner top surface of the limiting seat (10) is fixedly connected with a plurality of suction pipes (83). All suction pipes (83) are connected to the filter box (81) through the guide channel in the inner wall of the limiting seat (10). The filter box (81) is connected to an air pump (82).

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