Automobile motor stator lamination equipment and lamination process thereof

Abstract

The invention discloses automobile motor stator laminating equipment and a laminating process thereof, and relates to the field of motor manufacturing, the automobile motor stator laminating equipment comprises an equipment cabinet, the top of the equipment cabinet is provided with a rotary workbench, the bottom of the rotary workbench is connected with a driving device, and the end part of the rotary workbench is provided with a transfer mechanism; a limiting tool is movably installed in the transfer mechanism, multiple sets of stator iron sheets are loaded on the top of the limiting tool, a welding assembly is arranged below the transfer mechanism, and a discharging platform is arranged below the welding assembly. The limiting tool capable of being movably detached is arranged to bear the stator iron sheets, feeding and discharging of the stator iron sheets are more flexible and convenient, the limiting tool is of an adjustable design, the distance can be manually adjusted through the multiple sets of limiting rods, when the stator iron sheets are loaded, the multiple sets of limiting rods are adjusted to be close to one another, sleeving and loading of the stator iron sheets are more convenient, and the working efficiency is improved. After loading is completed, the multiple sets of limiting rods are adjusted to be away from one another, and stator iron sheets can be positioned and clamped.

Description

Technical Field

[0001] The present invention relates to the field of motor manufacturing, and specifically to an automotive motor stator stacking equipment and its stacking process. Background Art

[0002] A motor mainly consists of a stator, a rotor, a shaft, bearings, a commutator, brushes, and a housing. Among them, the stator of the motor is the stationary part, usually composed of an iron core and windings. The stator iron core is laminated by thin steel sheets, has a high magnetic permeability, can effectively conduct magnetism, and reduce energy loss.

[0003] For the production of the stator iron core of a motor, a stamping equipment is usually used to stamp out multiple silicon steel sheets. When stamping, recessed positioning holes or through holes can be stamped out to make it more convenient to stack the silicon steel sheets. Take a certain number of silicon steel sheets and stack them, then place them on the stator stacking and welding equipment. First, the multiple stacked silicon steel sheets are compacted by a hydraulic telescopic device. The compaction will make the frictional force between the silicon steel sheets very strong. However, for some special high-strength motors, the stacked silicon steel sheets also need to be welded and reinforced. The silicon steel sheets of the stator iron core of this part of the motor usually have multiple groups of welding grooves reserved during stamping. Welding inside the grooves makes the outside of the iron core have no protrusions and is smoother and more polished after grinding. After multiple groups of silicon steel sheets are stacked, usually two sets of symmetrically arranged welding equipment weld the welding grooves from top to bottom. After a set of opposite welding grooves are welded, the iron core rotates to facilitate the welding equipment to weld the next two sets of opposite welding grooves.

[0004] When the stator iron core stacking and welding equipment is working, usually the staff will clamp multiple groups of silicon steel sheets onto a rotating tooling. The rotating tooling usually has a shaft-hole fit with the iron core to ensure accurate positioning. Then the hydraulic telescopic device descends to compact the multiple groups of silicon steel sheets. Then the welding equipment welds multiple groups of welding grooves in sequence. After the welded iron core is removed from the rotating tooling by the staff. The stacked iron core has a certain weight, making it more troublesome for the staff to load and unload. Moreover, when the two sets of welding equipment are welding, they usually need to reciprocate up and down multiple times to complete the welding of the welding grooves, resulting in low welding work efficiency. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide an automotive motor stator stacking equipment and its stacking process to solve the technical problems mentioned in the above background.

[0006] To achieve the above object, the present invention provides the following technical solution: An automotive motor stator stacking device, including an equipment cabinet, a rotary worktable is arranged on the top of the equipment cabinet, a driving device is connected to the bottom of the rotary worktable, and a transfer mechanism is arranged at the end of the rotary worktable. A limiting tooling is movably installed inside the transfer mechanism, and multiple groups of stator iron sheets are loaded on the top of the limiting tooling. A hydraulic telescopic assembly is arranged above the limiting tooling, and a pressing sleeve is arranged at the end of the hydraulic telescopic assembly. A welding assembly is arranged below the transfer mechanism, and a blanking platform is arranged below the welding assembly. A lifting table is movably installed on the top of the blanking platform through a recessed groove, and a first telescopic cylinder is connected to the bottom of the lifting table.

[0007] By adopting the above technical solution, the stator iron sheets are carried by a limiting tooling that can be removably installed, making the loading and unloading of the stator iron sheets more flexible and convenient. Multiple groups of limiting toolings are provided, and the staff can first load the stator iron sheets on multiple limiting toolings, optimizing the preparatory work before the stator iron sheet stacking welding machine, which can improve the overall work efficiency. Moreover, the limiting tooling can be pushed into the transfer mechanism by sliding, making the feeding of the limiting tooling loaded with stator iron sheets more labor-saving. And the limiting tooling adopts an adjustable design, and multiple groups of limiting rods can be manually adjusted in distance. When loading the stator iron sheets, adjust multiple groups of limiting rods to approach each other, making the sleeving and loading of the stator iron sheets more convenient. After loading, adjust multiple groups of limiting rods to move away from each other to position and clamp the stator iron sheets.

[0008] The present invention is further provided that the stator iron sheet includes a silicon steel sheet body made by a stamping process, and a second positioning hole and a positioning rod are stamped on the silicon steel sheet body, and multiple groups of welding grooves are stamped on the side of the silicon steel sheet body.

[0009] Preferably, by stamping a second positioning hole and a positioning rod on the silicon steel sheet body, it helps to position and stack multiple groups of stator iron sheets. The welding grooves are provided, so that there are no protrusions after multiple groups of stator iron sheets are welded, and the external part is smoother after deburring treatment.

[0010] The present invention is further provided that multiple groups of the transfer mechanisms are evenly arranged on the side of the rotary worktable. The transfer mechanism includes a mounting seat, a first feeding port is arranged through the top of the mounting seat, and both ends of the first feeding port are provided with arc-shaped guiding surfaces. Multiple groups of first guiding rods are arranged inside the mounting seat, a support block is movably installed outside multiple groups of first guiding rods, and springs are sleeved outside multiple groups of first guiding rods. Multiple groups of the support blocks and the inner wall of the mounting seat are movably installed through a limiting component.

[0011] Preferably, by providing a through-type transfer mechanism, the limiting tooling can not only move by using the transfer mechanism, but also pass through the transfer mechanism for welding.

[0012] The present invention is further configured such that a plurality of sets of limiting tooling are provided. The limiting tooling includes a base that matches the first feeding port, a bearing platform is provided on the top of the base, and a first positioning hole that matches the positioning rod is provided on the top of the bearing platform.

[0013] Preferably, by providing a bearing platform on the top of the limiting tooling and a first positioning hole on the bearing platform, a plurality of sets of stator iron sheets can be loaded on the top of the limiting tooling at a specified angle.

[0014] The present invention is further configured such that a turntable is rotatably connected inside the base, an external gear ring is provided on the side surface of the turntable, a first face gear and a second face gear are provided at the bottom of the turntable, two sets of brackets are provided inside the base, and the two sets of brackets are arranged vertically up and down. Second guide rods are provided between the two sets of brackets, and a positive and negative screw rod is rotatably connected between the two sets of brackets. First gears are provided at the ends of the two sets of positive and negative screw rods, and the two sets of first gears are respectively meshed with the first face gear and the second face gear. Two sets of limiting rods are threadedly connected to the outside of the two sets of positive and negative screw rods, and the two sets of limiting rods and the corresponding second guide rods are movably penetrated.

[0015] Preferably, by providing a plurality of sets of limiting rods, the first face gear, the second face gear, the positive and negative screw rods and other structures are used to realize that the plurality of sets of limiting rods can approach or move away synchronously. When the plurality of sets of limiting rods approach each other, it is more convenient to load the stator iron sheets. When the plurality of sets of limiting rods move away from each other, the plurality of sets of stator iron sheets can be limited and supported to prevent the stator iron sheets from shaking during subsequent processing.

[0016] The present invention is further configured such that a knob is rotatably connected to the base, a second gear is provided at the bottom of the knob, and the second gear is meshed with the external gear ring.

[0017] Preferably, since the limiting tooling needs to be moved during the stacking and welding process, the knob and the second gear are provided, so that the driving of the limiting tooling can be adjusted manually.

[0018] The present invention is further configured such that the welding assembly includes a mounting table rotatably connected to the top of the equipment cabinet, a second feeding port is provided through the top of the mounting table, and a plurality of limiting grooves are provided on the top of the mounting table. A plurality of limiting seats are movably installed inside the limiting grooves, the limiting seats and the mounting table are fixed by providing threaded rods, and laser welding devices are provided on the tops of the plurality of limiting seats.

[0019] Preferably, by setting multiple groups of laser welding equipment to perform welding work simultaneously, the welding efficiency can be improved, and the stator iron sheets can be uniformly heated when multiple groups of laser welding equipment weld simultaneously, reducing the risk of the magnetic permeability of the stator iron sheet material itself being affected. Since the rapid change of temperature will also affect the change of magnetic permeability, a refrigeration system, such as an air-cooling system, is arranged inside the equipment cabinet to cool the stator iron sheets in the welding state, ensuring the processing quality of the stator iron sheets.

[0020] The present invention is further arranged such that the hydraulic telescopic assembly is installed on the top of the equipment cabinet through a mounting frame, the blanking platform is installed inside the equipment cabinet, and the blanking platform is located below the second feed inlet. One end of the blanking platform is provided with a second telescopic cylinder, and a push plate is arranged at the end of the second telescopic cylinder, and the second telescopic cylinder is installed on the inner wall of the equipment cabinet. The other end of the blanking platform is provided with a roller conveying assembly, and the blanking platform is installed on the inner wall of the equipment cabinet.

[0021] Preferably, by setting the second telescopic cylinder, the push plate and the roller conveying assembly, the positioning tooling can automatically discharge materials. A fitting groove is arranged between the blanking platform and the lifting platform. The arrangement of the fitting groove enables the positioning tooling to have a larger contact area on the blanking platform, ensuring the stability of the discharging process.

[0022] A stacking process method for an automotive motor stator stacking device, the process of which includes the following steps: S1: First, the staff pre-load a specified number of stator iron sheets into multiple groups of positioning tooling, and then install the positioning tooling loaded with stator iron sheets into the transfer mechanism respectively. As the rotary worktable rotates, the positioning tooling loaded with stator iron sheets is moved below the pressing sleeve; S2: Next, start the hydraulic telescopic assembly and the first telescopic cylinder, so that the pressing sleeve and the lifting platform approach each other to clamp the positioning tooling loaded with stator iron sheets, apply a certain pressure to press multiple groups of stator iron sheets, and reduce the gap between multiple groups of stator iron sheets; S3: Next, the pressing sleeve and the lifting platform clamp the positioning tooling and synchronously descend through the first feed inlet into the second feed inlet, and start multiple groups of laser welding equipment to weld the welding grooves; S4: When the welding grooves of multiple groups of stator iron sheets are welded, the lifting platform descends to drive the positioning tooling to descend and sit on the top of the blanking platform. The second telescopic cylinder extends, and the push plate pushes the positioning tooling onto the roller conveying assembly.

[0023] In summary, the present invention mainly has the following beneficial effects: In the present invention, a limit tooling that can be detachably assembled is provided to carry stator iron sheets, making the loading and unloading of stator iron sheets more flexible and convenient. Multiple groups of limit toolings are provided, and workers can first load stator iron sheets onto multiple limit toolings, optimizing the preparatory work before the stator iron sheet stacking and welding machine, improving the overall work efficiency. Moreover, the limit tooling can be pushed into the transfer mechanism by sliding, making the feeding of the limit tooling loaded with stator iron sheets more labor-saving. In addition, the limit tooling adopts an adjustable design, and multiple groups of limit rods can be manually adjusted in distance. When loading stator iron sheets, the multiple groups of limit rods are adjusted to approach each other, making the sleeved loading of stator iron sheets more convenient. After loading, adjusting the multiple groups of limit rods to move away from each other can position and clamp the stator iron sheets.

[0024] In the present invention, a through-type transfer mechanism is provided. After multiple groups of stator iron sheets are pressed, the limit tooling loaded with stator iron sheets can lower its height and pass through the transfer mechanism. Then, multiple groups of laser welding devices can simultaneously weld the stator iron sheets during the process of their descent, improving the welding efficiency. After welding, the stator iron sheets and the limit tooling can be directly unloaded automatically on the unloading platform, reducing the labor intensity of workers and improving the work efficiency. Description of the Drawings

[0025] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the top structural schematic diagram of the stator iron sheet of the present invention; Figure 3 is the bottom structural schematic diagram of the stator iron sheet of the present invention; Figure 4 is the installation schematic diagram of the transfer mechanism, limit tooling and multiple groups of stator iron sheets of the present invention; Figure 5 is the structural schematic diagram of the limit tooling of the present invention; Figure 6 is the internal structural schematic diagram of the limit tooling of the present invention; Figure 7 is the distribution schematic diagram of the bracket, second guide rod and positive and negative lead screw of the present invention; Figure 8 is the structural schematic diagram of the transfer mechanism of the present invention; Figure 9 is the distribution schematic diagram of the first feed port and arc-shaped guide surface of the present invention; Figure 10 is the internal structural schematic diagram of the transfer mechanism of the present invention; Figure 11 is the structural schematic diagram of the welding assembly of the present invention; Figure 12 is the distribution schematic diagram of the limit seat and threaded rod of the present invention; Figure 13Schematic diagram of the blanking platform, lifting platform, push plate and roller conveying assembly of the present invention.

[0026] Description of reference numerals: 1. Equipment cabinet; 2. Installation frame; 3. Hydraulic telescopic assembly; 4. Press-fit sleeve; 5. Rotary worktable; 6. Transfer mechanism; 601. Mounting seat; 602. First feed inlet; 603. Arc-shaped guide surface; 604. First guide rod; 605. Support block; 606. Spring; 607. Limit assembly; 7. Limit tooling; 701. Base; 702. Carrying platform; 703. First positioning hole; 704. Turntable; 705. External gear ring; 706. First face gear; 707. Second face gear; 708. Bracket; 709. Second guide rod; 710. Positive and negative lead screw; 711. First gear; 712. Limit rod; 713. Knob; 714. Second gear; 8. Stator iron core; 801. Silicon steel sheet body; 802. Second positioning hole; 803. Positioning rod; 804. Welding groove; 9. Welding assembly; 901. Installation table; 902. Second feed inlet; 903. Limit groove; 904. Limit seat; 905. Laser welding equipment; 906. Threaded rod; 10. Blanking platform; 11. Fitting groove; 12. Lifting platform; 13. First telescopic cylinder; 14. Second telescopic cylinder; 15. Push plate; 16. Roller conveying assembly. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation to the present invention.

[0028] Next, the embodiments of the present invention will be described according to the overall structure of the present invention.

[0029] Please refer to Figure 1 - Figure 13, An automotive motor stator stacking device, including an equipment cabinet 1. A rotary worktable 5 is arranged on the top of the equipment cabinet 1, and a driving device is connected to the bottom of the rotary worktable 5. The driving device, such as a motor, drives the rotary worktable 5 to rotate 90° each time for movement. And a transfer mechanism 6 is arranged at the end of the rotary worktable 5. A limiting tooling 7 is movably installed inside the transfer mechanism 6. A table body matching the height of the transfer mechanism 6 can be arranged on the top of the equipment cabinet 1, so that the staff can push the limiting tooling 7 into the transfer mechanism 6 in a sliding form, saving manpower and improving work efficiency. And multiple groups of stator iron sheets 8 are loaded on the top of the limiting tooling 7. A hydraulic telescopic component 3 is arranged above the limiting tooling 7, and a pressing sleeve 4 is arranged at the end of the hydraulic telescopic component 3. The size of the pressing sleeve 4 matches that of the stator iron sheets 8 and is used to press multiple groups of stator iron sheets 8. A welding component 9 is arranged below the transfer mechanism 6, and a blanking platform 10 is arranged below the welding component 9. A lifting platform 12 is movably installed on the top of the blanking platform 10 through a chimeric groove 11 opened, and a first telescopic cylinder 13 is connected to the bottom of the lifting platform 12.

[0030] In the above embodiment, specifically, please refer to Figure 2 and Figure 3 , The stator iron sheet 8 includes a silicon steel sheet body 801 made by a stamping process. And a second positioning hole 802 and a positioning rod 803 are stamped on the silicon steel sheet body 801. And multiple groups of welding grooves 804 are stamped on the side of the silicon steel sheet body 801. By stamping the second positioning hole 802 and the positioning rod 803 on the silicon steel sheet body 801, it helps the positioning and stacking of multiple groups of stator iron sheets 8. The welding grooves 804 are provided so that there are no protrusions after multiple groups of stator iron sheets 8 are welded, and the outside is smoother after deburring treatment.

[0031] In the above embodiment, specifically, please refer to Figure 8 - Figure 10 , Multiple groups of transfer mechanisms 6 are evenly arranged on the side of the rotary worktable 5. The transfer mechanism 6 includes a mounting seat 601, and a first feeding port 602 penetrates through the top of the mounting seat 601. And both ends of the first feeding port 602 are provided with arc-shaped guiding surfaces 603. Multiple groups of first guiding rods 604 are arranged inside the mounting seat 601. And a support block 605 is movably installed outside multiple groups of first guiding rods 604. And springs 606 are sleeved outside multiple groups of first guiding rods 604. Multiple groups of support blocks 605 and the inner wall of the mounting seat 601 are movably installed through a limiting component 607. By providing the through-type transfer mechanism 6, the limiting tooling 7 can not only move by using the transfer mechanism 6, but also pass through the transfer mechanism 6 for welding.

[0032] In the above embodiment, specifically, please refer to Figure 4 - Figure 7, there are multiple sets of limiting tooling 7. The limiting tooling 7 includes a base 701 that matches the first feeding port 602. A bearing platform 702 is provided at the top of the base 701, and a first positioning hole 703 that matches the positioning rod 803 is provided at the top of the bearing platform 702. By providing the bearing platform 702 at the top of the limiting tooling 7 and setting the first positioning hole 703 on the bearing platform 702, multiple sets of stator iron sheets 8 can be loaded on the top of the limiting tooling 7 at a specified angle.

[0033] In the above embodiment, specifically, referring to the figure again, a turntable 704 is rotatably connected inside the base 701. An external gear ring 705 is provided on the side of the turntable 704, and a first face gear 706 and a second face gear 707 are provided at the bottom of the turntable 704. Two sets of brackets 708 are provided inside the base 701, and the two sets of brackets 708 are arranged vertically up and down. A second guide rod 709 is provided between the two sets of brackets 708, and a positive and negative lead screw 710 is rotatably connected between the two sets of brackets 708. First gears 711 are provided at the ends of the two sets of positive and negative lead screws 710, and the two sets of first gears 711 are respectively meshed with the first face gear 706 and the second face gear 707. Two sets of limiting rods 712 are threadedly connected to the outside of the two sets of positive and negative lead screws 710, and the two sets of limiting rods 712 and the corresponding second guide rod 709 are movably penetrated. By providing multiple sets of limiting rods 712, the multiple sets of limiting rods 712 can be synchronously moved closer or farther away by using structures such as the first face gear 706, the second face gear 707, and the positive and negative lead screw 710. When the multiple sets of limiting rods 712 are close to each other, it is more convenient to load the stator iron sheets 8. When the multiple sets of limiting rods 712 are far away from each other, the multiple sets of stator iron sheets 8 can be limited and supported to prevent the stator iron sheets 8 from shaking during subsequent processing.

[0034] In the above embodiment, specifically, referring to Figure 6 , a knob 713 is rotatably connected to the base 701, and a second gear 714 is provided at the bottom of the knob 713, and the second gear 714 is meshed with the external gear ring 705. Since the limiting tooling 7 needs to be moved during the lamination welding process, the knob 713 and the second gear 714 are provided so that the driving of the limiting tooling 7 can be manually adjusted.

[0035] In the above embodiment, specifically, referring to Figure 11 and Figure 12, the welding assembly 9 includes a mounting table 901 rotatably connected to the top of the equipment cabinet 1. A second feeding port 902 is formed through the top of the mounting table 901. Multiple limiting grooves 903 are formed on the top of the mounting table 901. Multiple limiting seats 904 are movably installed inside the limiting grooves 903. The limiting seats 904 and the mounting table 901 are fixed by screw rods 906. Multiple laser welding devices 905 are arranged on the tops of the multiple limiting seats 904. By arranging multiple laser welding devices 905 to perform welding work simultaneously, the welding efficiency can be improved. When multiple laser welding devices 905 weld simultaneously, the stator iron sheets 8 can be uniformly heated, reducing the risk of the magnetic permeability of the stator iron sheet 8 material itself being affected. Since the rapid change of temperature will also affect the change of magnetic permeability, a refrigeration system, such as an air-cooling system, is arranged inside the equipment cabinet 1 to cool the stator iron sheets 8 in the welding state, ensuring the processing quality of the stator iron sheets 8.

[0036] In the above embodiment, specifically, please refer to Figure 13 , the hydraulic telescopic assembly 3 is installed on the top of the equipment cabinet 1 through a mounting frame 2. The blanking platform 10 is installed inside the equipment cabinet 1 and is located below the second feeding port 902. One end of the blanking platform 10 is provided with a second telescopic cylinder 14, and a push plate 15 is arranged at the end of the second telescopic cylinder 14. The second telescopic cylinder 14 is installed on the inner wall of the equipment cabinet 1. The other end of the blanking platform 10 is provided with a roller conveying assembly 16, and the blanking platform 10 is installed on the inner wall of the equipment cabinet 1. By arranging the second telescopic cylinder 14, the push plate 15 and the roller conveying assembly 16, the limiting tooling 7 can automatically discharge materials. A fitting groove 11 is arranged between the blanking platform 10 and the lifting platform 12. The arrangement of the fitting groove 11 enables the limiting tooling 7 to have a large contact area on the blanking platform 10, ensuring the stability of the blanking process.

[0037] A stacking process method for an automotive motor stator stacking device includes the following steps: S1: First, the staff pre-loads a specified number of stator iron sheets 8 on multiple limiting toolings 7, and then installs the limiting toolings 7 loaded with stator iron sheets 8 into the transfer mechanism 6 respectively. As the rotary table 5 rotates, the limiting toolings 7 loaded with stator iron sheets 8 are moved below the pressing sleeve 4; S2: Next, start the hydraulic telescopic assembly 3 and the first telescopic cylinder 13 to make the pressing sleeve 4 and the lifting platform 12 approach each other to clamp the limiting tooling 7 loaded with stator iron sheets 8, and apply a certain pressure to press multiple stator iron sheets 8 to reduce the gap between multiple stator iron sheets 8; S3: Next, the pressing sleeve 4 and the lifting platform 12 clamp the limiting tooling 7 and synchronously descend to enter the second feeding port 902 through the first feeding port 602, and start multiple laser welding devices 905 to weld the welding grooves 804. S4: After the welding grooves 804 of multiple groups of stator iron sheets 8 are welded, the lifting platform 12 descends to drive the limit tooling 7 to descend and be located on the top of the blanking platform 10, and the second telescopic cylinder 14 extends to push the limit tooling 7 to the roller conveying assembly 16 through the push plate 15.

[0038] When the present invention is working specifically: First, the staff fills the stator iron sheets 8 into multiple limit toolings 7. When filling, the staff first rotates the knob 713, and the knob 713 drives the second gear 714 to rotate. Then, the second gear 714 meshes with the external gear ring 705 to drive the turntable 704 to rotate. As the turntable 704 rotates, it will synchronously drive the first face gear 706 and the second face gear 707 to rotate. Then, the first face gear 706 and the second face gear 707 respectively drive two groups of first gears 711 to rotate, so that the two groups of positive and negative lead screws 710 rotate. Thus, the four limit rods 712 threadedly connected to the outside of the two groups of positive and negative lead screws 710 approach each other. When the distance between the four limit rods 712 shortens as they approach each other, the staff can more easily sleave multiple groups of stator iron sheets 8 outside the limit rods 712. When sleaving and stacking the stator iron sheets 8, multiple groups of stator iron sheets 8 are already in a stacked state during stamping and blanking. The staff directly transports a certain number of stator iron sheets 8 so that the positioning rod 803 of the lowermost group of stator iron sheets 8 aligns with the first positioning hole 703 on the top of the bearing table 702. Each group of stator iron sheets 8 is stamped with a second positioning hole 802 and a positioning rod 803 during stamping to facilitate the alignment and stacking of multiple groups of stator iron sheets 8, ensuring that multiple groups of stator iron sheets 8 are loaded on the top of the limit tooling 7 at a specified angle. After the stator iron sheets 8 are loaded, according to the steps, the staff rotates the knob 713 again to make the multiple limit rods 712 move away from each other to limit and support the stator iron sheets 8, preventing them from shaking during subsequent processing.

[0039] At the loading station of the rotary worktable 5, a table body with a height matching that of the transfer mechanism 6 can be set. Next, the staff can push the limit tooling 7 loaded with stator iron sheets 8 into the transfer mechanism 6 in a sliding manner from the table body, reducing the handling steps of the staff and saving physical strength. As the rotary worktable 5 rotates, it drives the limit tooling 7 loaded with stator iron sheets 8 to move below the hydraulic telescopic assembly 3.

[0040] Start the hydraulic telescopic assembly 3, and then press the sleeve 4 to lower its height to fit the top of multiple stator iron sheets 8. At the same time, start the first telescopic cylinder 13 to raise the lifting platform 12. When the lifting platform 12 rises, it passes through the second feeding port 902 of the welding assembly 9 and rises into the first feeding port 602 of the transfer mechanism 6. The lifting platform 12 will squeeze multiple support blocks 605, causing the support blocks 605 to slide along the first guide rod 604 and compress the spring 606. Multiple support blocks 605 will contract into the interior of the mounting seat 601. Then, the lifting platform 12 is used to support the bottom of the positioning tooling 7, and the pressing sleeve 4 presses multiple stator iron sheets 8 from the upper end.

[0041] Apply a certain pressure to multiple stator iron sheets 8 to press them tightly, reducing the gaps between each stator iron sheet 8. Then, the hydraulic telescopic assembly 3 and the first telescopic cylinder 13 work synchronously, causing the clamped positioning tooling 7 to slowly descend through the first feeding port 602 and move towards the second feeding port 902. Start multiple laser welding devices 905 to weld multiple welding grooves 804 of multiple stator iron sheets 8 from top to bottom simultaneously. Welding multiple stator iron sheets 8 simultaneously by multiple laser welding devices 905 can improve the welding efficiency. Welding multiple stator iron sheets 8 simultaneously by multiple laser welding devices 905 can make the stator iron sheets 8 receive uniform heat, reducing changes in the magnetic permeability of the stator iron sheet 8 material itself. The large amount of heat generated during welding may also cause changes in the magnetic permeability of the material. Therefore, a refrigeration system is provided inside the equipment cabinet 1 to cool the temperature around the welding assembly 9.

[0042] When multiple stator iron sheets 8 are welded to form a complete stator core, at this time, the pressing sleeve 4 is reset under the drive of the hydraulic telescopic assembly 3, and the rotary table 5 rotates to start the stacking and welding work of the next group of stator iron sheets 8. The lifting platform 12 will drive the positioning tooling 7 and the welded stator iron sheets 8 to continue to descend. When the lifting platform 12 is lower than the fitting groove 11, the positioning tooling 7 and the stator iron sheets 8 will be located inside the blanking platform 10. Start the second telescopic cylinder 14 to drive the push plate 15 to push the positioning tooling 7. Then, the positioning tooling 7 and the welded stator iron sheets 8 are pushed to the designated area by the conveyor 18.

[0043] Although the embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention and are not limitations of the invention. The specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions, and variations without creative contributions to the embodiments according to needs, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. An automobile motor stator lamination device, comprising an equipment cabinet (1), characterized in that: A rotating worktable (5) is arranged on the top of the equipment cabinet (1), and a driving device is connected to the bottom of the rotating worktable (5), and a transfer mechanism (6) is arranged at the end of the rotating worktable (5), a limit fixture (7) is movably installed inside the transfer mechanism (6), and a plurality of groups of stator iron sheets (8) are loaded on the top of the limit fixture (7), a hydraulic telescopic component (3) is arranged above the limit fixture (7), and a pressing sleeve (4) is arranged at the end of the hydraulic telescopic component (3), a welding component (9) is arranged below the transfer mechanism (6), and a material unloading platform (10) is arranged below the welding component (9), and a lifting platform (12) is movably installed on the top of the unloading platform (10) by providing an engaging groove (11), and the bottom of the lifting platform (12) is connected to a first telescopic cylinder (13).

2. The automotive motor stator lamination device according to claim 1, characterized in that: The stator iron sheet (8) comprises a silicon steel sheet body (801) manufactured by a stamping process, wherein a second positioning hole (802) and a positioning rod (803) are stamped out of the silicon steel sheet body (801), and a plurality of welding grooves (804) are stamped out on the side surface of the silicon steel sheet body (801).

3. The automotive motor stator lamination device according to claim 2, characterized in that: The transfer mechanism (6) is evenly arranged on the side of the rotating worktable (5), and the transfer mechanism (6) includes a mounting seat (601), and a first feed port (602) is arranged through the top of the mounting seat (601), and both ends of the first feed port (602) are arranged as arc-shaped guide surfaces (603), and multiple groups of first guide rods (604) are arranged inside the mounting seat (601), and support blocks (605) are movably installed outside the multiple groups of first guide rods (604), and springs (606) are sleeved outside the multiple groups of first guide rods (604), and the multiple groups of support blocks (605) and the inner wall of the mounting seat (601) are movably installed by setting a limit assembly (607).

4. The automotive motor stator lamination device according to claim 3, characterized in that: The position limiting fixture (7) is provided with multiple groups, and the position limiting fixture (7) comprises a base (701) matching with the first feed port (602), and a bearing platform (702) is provided on the top of the base (701), and a first positioning hole (703) matching with the positioning rod (803) is provided on the top of the bearing platform (702).

5. The automotive motor stator lamination device according to claim 4, characterized in that: The base (701) is internally rotatably connected to a turntable (704), and an outer gear ring (705) is provided on the side of the turntable (704), and a first face gear (706) and a second face gear (707) are provided at the bottom of the turntable (704). Two groups of brackets (708) are provided inside the base (701), and the two groups of brackets (708) are vertically distributed up and down, and a second guide rod (709) is provided between the two groups of brackets (708), and the two groups The brackets (708) are rotatably connected with forward and reverse screw rods (710), and the ends of the two groups of forward and reverse screw rods (710) are provided with first gears (711), and the two groups of first gears (711) are respectively meshed with the first face gear (706) and the second face gear (707), and the exteriors of the two groups of forward and reverse screw rods (710) are threadedly connected with two groups of limit rods (712), and the two groups of limit rods (712) and the corresponding second guide rods (709) are movably interwoven.

6. The automotive motor stator lamination device according to claim 5, characterized in that: The base (701) is rotatably connected to a knob (713), and a second gear (714) is provided at the bottom of the knob (713), and the second gear (714) and the outer gear ring (705) are meshed with each other.

7. The automotive motor stator lamination device according to claim 6, characterized in that: The welding assembly (9) comprises a mounting platform (901) rotatably connected to the top of the equipment cabinet (1), and a second feed port (902) is provided through the top of the mounting platform (901), and a plurality of groups of limit grooves (903) are provided on the top of the mounting platform (901), and a plurality of groups of limit seats (904) are movably installed inside the limit grooves (903), and the limit seats (904) and the mounting platform (901) are fixed by means of threaded rods (906), and laser welding equipment (905) is provided on the tops of the plurality of groups of limit seats (904).

8. The automotive motor stator lamination device according to claim 7, characterized in that: The hydraulic telescopic assembly (3) is installed on the top of the equipment cabinet (1) by providing a mounting frame (2); the unloading platform (10) is installed inside the equipment cabinet (1), and the unloading platform (10) is located below the second feed port (902); a second telescopic cylinder (14) is provided at one end of the unloading platform (10), and a push plate (15) is provided at the end of the second telescopic cylinder (14), and the second telescopic cylinder (14) is installed on the inner wall of the equipment cabinet (1); a roller conveying assembly (16) is provided at the other end of the unloading platform (10), and the unloading platform (10) is installed on the inner wall of the equipment cabinet (1).

9. A lamination process method for laminating a stator of an automobile motor, characterized in that The process of using the automotive motor stator lamination device according to any one of claims 1 to 8 comprises the following steps: S1: First, the staff pre-loads a specified number of stator iron sheets (8) on multiple sets of limiting fixtures (7), and then respectively installs the limiting fixtures (7) loaded with the stator iron sheets (8) into the transfer mechanism (6). As the rotating worktable (5) rotates, the limiting fixtures (7) loaded with the stator iron sheets (8) are moved to the bottom of the pressing sleeve (4); S2: Next, the hydraulic telescopic assembly (3) and the first telescopic cylinder (13) are started, so that the pressing sleeve (4) and the lifting platform (12) are moved closer to each other to clamp the limiting tooling (7) loaded with the stator iron sheets (8), and a certain pressure is applied to press the multiple groups of stator iron sheets (8) to reduce the gaps between the multiple groups of stator iron sheets (8); S3: Next, the pressed sleeve (4) and the lifting platform (12) clamping and limiting tooling (7) are synchronously lowered to pass through the first feed inlet (602) and enter the second feed inlet (902), and multiple sets of laser welding equipment (905) are started to weld the welding groove (804); S4: After the welding of the welding grooves (804) of the plurality of groups of stator iron sheets (8) is completed, the lifting platform (12) is lowered to drive the limiting tooling (7) to descend and sit on the top of the unloading platform (10), and the second telescopic cylinder (14) is extended to push the limiting tooling (7) onto the roller conveying assembly (16) through the push plate (15).

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