A production device and method for aluminum end cover of new energy vehicle motor

Abstract

The invention discloses a production device and a production method for an aluminum end cover of a new energy vehicle motor, which comprises an end cover fixture, an assembly component, a detection component, a heating component and an extrusion component; a metal sheet is inserted into a plug-in part by the assembly component, and the metal sheet and the aluminum end cover of the motor are assembled by interference fit; the tightness of the metal sheet is detected by the detection component, and when the tightness of the metal sheet is unqualified, the plug-in part is heated by the heating component, and two extrusion parts are moved toward each other to extrude the plug-in part; in this process, the plug-in part and the metal sheet are thermally expanded by heating, and the plug-in part is fitted with the metal sheet by the extrusion part, and the combined area undergoes microscopic plastic deformation under the action of heating and pressure, thereby further enhancing the assembly strength; through the above-mentioned arrangement, after the aluminum end cover of the motor is plugged with the metal sheet, its tightness can be corrected, without waiting for the motor to be fully assembled, thereby improving the assembly reliability of the motor and improving the efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of motor assembly structures, and in particular to production equipment and a production method for an aluminum end cover of a new energy vehicle motor. Background Art

[0002] During the motor assembly process, the assembly of the motor aluminum end cover and the metal sheet is an important process; the metal sheet is usually used for grounding or conductive connection, and its assembly reliability directly affects the electrical performance and mechanical stability of the motor. At present, this process includes fixing methods such as pressing, welding, riveting, and bonding. Each fixing method has its own advantages and disadvantages, but in actual application, there is a problem that the metal sheet may become loose after assembly. Looseness will have an adverse effect on the performance of the motor, such as poor grounding or increased contact resistance, and even vibration or abnormal noise, which may affect the operating safety of the entire machine in severe cases.

[0003] The reason for this type of looseness is the impact of new energy vehicles during driving, or the mismatch of dimensional tolerances. In conventional motor production plans, the motor is generally tested for various parameters after all motors are assembled. At this time, if the metal sheet is found to be loose during the motor testing phase, it means that the motor is prone to loose metal sheets during actual use, and the motor needs to be reworked or scrapped, which not only increases production costs and working hours, but also leads to material waste. It can be seen that the existing motor production plan has the defects of poor reliability and low efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a production device and a production method for aluminum end covers of new energy vehicle motors, so as to solve the technical problems of poor reliability and low efficiency of motor production solutions in the prior art.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A production equipment for aluminum end covers of new energy vehicle motors, comprising:

[0007] An end cover fixture, the end cover fixture is used to position and fix the aluminum end cover of the motor, the aluminum end cover of the motor is provided with a plug-in portion extending along a first direction, the plug-in portion is used to plug in the metal sheet;

[0008] An assembly component, disposed on one side of the end cover fixture along the first direction, for inserting the metal sheet portion into the plug-in portion;

[0009] A detection component, used to detect the tightness of the metal sheet;

[0010] A heating assembly, used for heating the plug-in part of the aluminum end cover of the motor;

[0011] An extrusion assembly is disposed above the end cover fixture and includes two extrusion parts that can move toward each other;

[0012] Wherein, the heating component is used to heat the plug-in part when the tightness of the metal sheet is unqualified, and the two extrusion parts can be sleeved on the outside of the plug-in part and move towards each other to squeeze the plug-in part.

[0013] Optionally, a telescopic component is provided on one side of the end cap fixture, a rotating component is installed at the telescopic end of the telescopic component, and the telescopic end can move away from or approach the end cap fixture along the first direction;

[0014] The rotating component comprises a rotating cylinder and a rotating disk installed on the rotating cylinder; the assembling component, the detecting component and the heating component are installed on the rotating disk in a circumferential distribution.

[0015] Optionally, an insulating seat is provided on the outer sleeve of the end of the metal sheet inserted into the plug-in part, and the height of the insulating seat is greater than the depth of the plug-in slot of the plug-in part;

[0016] The assembly assembly includes a first insertion assembly and a second insertion assembly disposed on the rotating disk;

[0017] The first insertion component includes an insertion boss, the insertion boss is provided with an insertion positioning groove matching the outer contour of the plug-in portion; the bottom wall of the insertion positioning groove is provided with a first positioning groove for accommodating an insulating seat, and the bottom wall of the first positioning groove is provided with a first avoidance groove corresponding to the position of the metal sheet;

[0018] When the telescopic end of the telescopic assembly is extended and the insertion boss is in contact with the motor aluminum end cover, the insertion positioning groove is sleeved outside the plug-in portion, and the insulating seat is inserted into the first groove depth relative to the plug-in portion;

[0019] The second insertion assembly is used to insert the insulating seat into a second slot depth relative to the plug-in portion, and the sum of the first slot depth and the second slot depth is equal to the slot depth of the plug-in slot.

[0020] Optionally, the insertion boss is provided with a spring installation groove along the first direction, and the spring installation groove extends from the end surface of the insertion boss to the bottom wall of the first positioning groove; the bottom wall of the insertion positioning groove is also provided with a transition groove connecting the spring installation groove and the first positioning groove;

[0021] The second insertion assembly includes a compression spring installed in the spring installation groove along the first direction, a trigger block installed at one end of the compression spring and partially protruding from the spring installation groove, and a pressing block installed at the other end of the compression spring and located at one side of the transition groove;

[0022] The second insertion assembly further includes a limiting shaft disposed in the transition groove and a spring sheet with the limiting shaft as a rotation center, one end of the spring sheet extends into the spring installation groove to abut against the pressing block, and the other end of the spring sheet extends into the first positioning groove to squeeze and push the insulating seat;

[0023] The other end of the spring sheet is closer to the bottom wall of the first positioning slot than the one end of the spring sheet.

[0024] Optionally, the insertion boss is further provided with an avoidance opening, and the avoidance opening penetrates a side groove wall of the insertion positioning groove.

[0025] Optionally, the detection assembly includes a clamping claw unit and a visual detection unit, the clamping claw unit is used to clamp the upper and lower ends of the insulating seat, and the visual detection unit is used to obtain the protruding distance of the insulating seat relative to the plug-in portion;

[0026] Wherein, the assembly component, the clamping claw unit, the heating component and the visual inspection unit are arranged on the rotating disk along a circumferential direction.

[0027] Optionally, the heating assembly includes a heating boss disposed on the rotating disk, the heating boss includes a first boss and a second boss disposed opposite to each other, a heating cavity for heating the insulating seat is formed between the first boss and the second boss, at least one of the first boss and the second boss is provided with an electric heating wire; an extrusion opening for the extrusion part to enter is reserved between the first boss and the second boss;

[0028] The rotating disk is provided with a second positioning groove between the first boss and the second boss at a position corresponding to the insulating seat, and a second avoiding groove at a position corresponding to the metal sheet.

[0029] Optionally, the extrusion assembly includes a lifting cylinder, and the lifting end of the lifting cylinder is rotatably connected to the extrusion part; the lifting end of the lifting cylinder is also equipped with an adjustment assembly, which is arranged between the upper ends of the two extrusion parts and is used to adjust the opening and closing angle between the two extrusion parts.

[0030] Optionally, the end cover fixture comprises a rotating end cover cylinder and a fixture portion mounted on the rotating end cover cylinder.

[0031] A method for producing an aluminum end cover of a new energy vehicle motor, applied to the production equipment of the aluminum end cover of the new energy vehicle motor as described above, comprising:

[0032] Place the motor aluminum end cover into the end cover fixture and place the metal sheet into the assembly component;

[0033] Insert the metal sheet into the plug-in part of the aluminum end cover of the motor through the assembly component;

[0034] Check the tightness between the metal sheet and the plug-in part;

[0035] When the tightness between the metal sheet and the plug-in portion is unqualified, the plug-in portion is heated and pressurized.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] The present invention provides a production device and a production method for an aluminum end cover of a new energy vehicle motor. The device inserts a metal sheet into a plug-in portion through an assembly component, and completes the assembly of the metal sheet and the aluminum end cover of the motor by means of interference fit. Then, the detection component is used to detect the tightness of the metal sheet. When the tightness of the metal sheet is unqualified, the heating component is used to heat the plug-in portion, and two extrusion portions are used to move toward each other to extrude the plug-in portion. In this process, the heating is used to cause the plug-in portion and the metal sheet to generate thermal expansion, and then the extrusion portion is used to make the plug-in portion fit with the metal sheet, so that in the subsequent cooling process, the end cover and the metal sheet form an interference fit due to the thermal expansion and contraction effect, and the combined area undergoes microscopic plastic deformation under the action of heating and pressure, thereby further enhancing the assembly strength. At the same time, the aluminum plug-in portion is more susceptible to thermal deformation, so that after the thermal expansion, the plug-in portion is more susceptible to the pressure of the extrusion portion to fit with the metal sheet. Through the above arrangement, after the motor aluminum end cover is plugged with the metal sheet, its tightness can be corrected without waiting for the motor to be fully assembled, which effectively improves the assembly reliability of the motor and improves the efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0039] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0040] Figure 1 A schematic diagram of the overall structure of a production device for aluminum end covers of new energy vehicle motors provided by an embodiment of the present invention;

[0041] Figure 2A schematic diagram of a first partial structure of a production device for aluminum end covers of motors for new energy vehicles provided in an embodiment of the present invention;

[0042] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure at point A;

[0043] Figure 4 for Figure 2 A schematic diagram of the cross-sectional structure at point B;

[0044] Figure 5 A second partial structural schematic diagram of a production device for aluminum end covers of new energy vehicle motors provided by an embodiment of the present invention;

[0045] Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure at C;

[0046] Figure 7 A third partial structural diagram of a production device for aluminum end covers of new energy vehicle motors provided by an embodiment of the present invention;

[0047] Figure 8 for Figure 7 A schematic diagram of the cross-sectional structure at D;

[0048] Fig. 9 A fourth partial structural schematic diagram of the production equipment of the aluminum end cover of the new energy vehicle motor provided by an embodiment of the present invention.

[0049] Illustration: 001, aluminum end cover of motor; 002, plug-in part; 003, metal sheet; 004, insulation seat;

[0050] 100, end cap fixture; 200, assembly component; 210, first insertion component; 211, insertion boss; 212, insertion positioning groove; 213, first positioning groove; 214, first avoidance groove; 215, avoidance opening; 220, second insertion component; 221, spring mounting groove; 222, transition groove; 223, compression spring; 224, trigger block; 225, pressing block; 226, limit shaft; 227, spring piece;

[0051] 300, detection assembly; 310, clamping jaw unit; 320, visual detection unit; 400, heating assembly; 410, heating boss; 411, first boss; 412, second boss; 413, extrusion opening; 420, second positioning groove; 430, second avoidance groove;

[0052] 510, telescopic assembly; 520, rotating assembly; 521, rotating cylinder; 522, rotating disk; 600, extrusion assembly; 610, extrusion part; 620, lifting cylinder. DETAILED DESCRIPTION

[0053] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0055] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0056] Embodiment 1:

[0057] The production equipment of the aluminum end cover of the new energy vehicle motor provided by the embodiment of the present invention is suitable for the assembly production scene of the motor end cover and the metal sheet 003, and is particularly suitable for the assembly scene of the motor aluminum end cover 001 and the metal sheet 003. The motor aluminum end cover 001 is configured with a plug-in portion 002, and the metal sheet 003 is provided with an insulating seat 004. The metal sheet 003 and the insulating seat 004 can be inserted into the plug-in portion 002 together to complete the assembly of the end cover of the new energy vehicle motor. In this embodiment, by improving the production equipment of the aluminum end cover of the new energy vehicle motor, new functional modules are added while maintaining compactness, so as to significantly reduce the situation where the tightness of the metal sheet 003 does not meet the requirements, meet the seismic requirements of the new energy vehicle during driving, reduce the rework or scrapping caused by poor assembly, so as to improve the assembly reliability and efficiency.

[0058] like Figures 1 to 6As shown, the production equipment of the aluminum end cap of the motor of the new energy vehicle provided in this embodiment includes: an end cap fixture 100, an assembly component 200, a detection component 300, a heating component 400 and an extrusion component 600. In addition, it can also include an end cap feeding device, a metal sheet feeding device, etc. The end cap feeding device can install the motor aluminum end cap 001 on the end cap fixture 100, and the metal sheet feeding device can set the metal sheet 003 on the assembly component 200. Specifically, it can be a multi-freedom manipulator, a gripper cylinder installed on a gantry crane, and other structures, which can transfer materials such as the motor aluminum end cap 001 and the metal sheet 003.

[0059] The end cap fixture 100 is used to position and fix the motor aluminum end cap 001 to ensure that the motor aluminum end cap 001 remains stable during the assembly process. The motor aluminum end cap 001 is provided with a plug-in portion 002 extending along the first direction, and the plug-in portion 002 is used to plug the metal sheet 003. The assembly component 200 is arranged on one side of the end cap fixture 100 along the first direction, and is used to partially insert the metal sheet 003 into the plug-in portion 002 to ensure that the metal sheet 003 can be inserted into the plug-in portion 002 at an accurate angle and force to complete the first assembly. The detection component 300 is used to detect the tightness of the metal sheet 003. The heating component 400 is used to heat the plug-in portion 002 of the motor aluminum end cap 001. The extrusion assembly 600 is arranged above the end cover clamp 100, and includes two extrusion parts 610 that can move toward each other; when the plug-in part 002 and the metal sheet 003 are heated to a suitable temperature, the extrusion assembly 600 is started to apply uniform pressure to the plug-in part 002 so that it forms a tight combination with the metal sheet 003, that is, the heating assembly 400 is used to heat the plug-in part 002 when the tightness of the metal sheet 003 is unsatisfactory, and the two extrusion parts 610 can be sleeved on the outside of the plug-in part 002 and move toward each other to extrude the plug-in part 002.

[0060] Specifically, the production equipment of the aluminum end cover of the motor of the new energy vehicle inserts the metal sheet 003 into the plug-in part 002 through the assembly component 200, and completes the assembly of the metal sheet 003 and the aluminum end cover 001 of the motor by means of interference fit; then, the tightness of the metal sheet 003 is detected by the detection component 300. When the tightness of the metal sheet 003 is unqualified due to the size difference, the heating component 400 is used to heat the plug-in part 002, and the two extrusion parts 610 are moved toward each other to extrude the plug-in part 002. In this process, the plug-in part 002 and the metal sheet 003 are thermally expanded by heating, and then the extrusion part 610 is used to apply pressure to the plug-in part 002. 2 is deformed inward, so that the plug-in part 002 and the metal sheet 003 are directly or indirectly fitted more closely, so that in the subsequent cooling process, the motor aluminum end cover 001 and the metal sheet 003 form an interference fit due to the thermal expansion and contraction effect, and the bonding area undergoes micro-plastic deformation under the action of heating and pressure. The bonding area can be the area where the motor aluminum end cover 001 and the metal sheet 003 are in direct contact, and can also be the area where the motor aluminum end cover 001 and the metal sheet 003 are in indirect contact, which further enhances the assembly strength; at the same time, the aluminum plug-in part 002 is more susceptible to thermal deformation, so that after thermal expansion, the plug-in part 002 is more susceptible to the pressure of the extrusion part 610 to fit with the metal sheet 003. Through the above arrangement, after the motor aluminum end cover 001 is plugged into the metal sheet 003, the tightness thereof can be directly tested, and the motor aluminum end cover 001 with interference fit failure can be screened out in advance, and its tightness can be corrected. Through the combined operations of heating and extrusion, the tightness of the motor aluminum end cover 001 and the metal sheet 003 can be improved. There is no need to wait until the motor is fully assembled to eliminate defects, which can reduce the scrap rate and rework rate of the motor, thereby improving the assembly reliability and efficiency of the motor.

[0061] Furthermore, a telescopic assembly 510 is provided on one side of the end cap fixture 100, and a rotating assembly 520 is installed at the telescopic end of the telescopic assembly 510, and the telescopic end can move away from or close to the end cap fixture 100 along the first direction; the rotating assembly 520 includes a rotating cylinder 521 and a rotating disk 522 installed on the rotating cylinder 521; the assembly assembly 200, the detection assembly 300 and the heating assembly 400 are installed on the rotating disk 522 in a circumferential distribution. Among them, the telescopic assembly 510 can select a telescopic cylinder, a push rod motor and other structures, which can push the rotating assembly 520 to move along the first direction, and is not specifically limited in this embodiment.

[0062] Exemplarily, the rotating disk 522 is driven to rotate by rotating the cylinder 521, thereby driving one of the assembly component 200, the detection component 300 and the heating component 400 to be arranged corresponding to the plug-in part 002, and then the telescopic component 510 is used to push the rotating disk 522, so that the assembly component 200 can insert the pre-loaded metal sheet 003 into the plug-in part 002, or the detection component 300 can detect the tightness of the metal sheet 003, or the heating component 400 can heat it; thereby realizing the process of assembling the metal sheet 003 of the plug-in part 002, detecting the tightness and correcting the tightness. It should be supplemented that, when the plug-in portion 002 is arranged corresponding to one of the assembly component 200, the detection component 300 and the heating component 400, the other two of the assembly component 200, the detection component 300 and the heating component 400 should not overlap with the motor aluminum end cover 001 in space, so as to avoid interference. For example, the axis of the end cover clamp 100 and the axis of the rotating disk 522 can be staggered, and the diameter of the rotating disk 522 is larger than the diameter of the motor aluminum end cover 001, so as to ensure that there is always an area of ​​the rotating disk 522 that does not overlap with the motor aluminum end cover 001. These areas are used for the other two of the assembly component 200, the detection component 300 and the heating component 400 to stay, and have the advantage of compact structure.

[0063] Furthermore, if Figure 3 As shown, the end of the metal sheet 003 inserted into the plug-in part 002 is covered with an insulating seat 004, and the height of the insulating seat 004 is greater than the depth of the plug-in slot of the plug-in part 002. Therefore, when the metal sheet 003 is inserted into the plug-in part 002, a part of the insulating seat 004 and the metal sheet 003 protrudes from the plug-in part 002; wherein, the insulating seat 004 can be made of heat-resistant plastics such as polyimide and polytetrafluoroethylene or ceramics.

[0064] The assembly component 200 includes a first insertion component 210 and a second insertion component 220 disposed on the rotating disk 522; the first insertion component 210 is used to insert the insulating seat 004 into a first groove depth relative to the plug-in portion 002, and the second insertion component 220 is used to insert the insulating seat 004 into a second groove depth relative to the plug-in portion 002, and the sum of the first groove depth and the second groove depth is equal to the groove depth of the plug-in groove;

[0065] The first insertion component 210 includes an insertion boss 211, and the insertion boss 211 is provided with an insertion positioning groove 212 matching the outer contour of the plug-in part 002; the bottom wall of the insertion positioning groove 212 is provided with a first positioning groove 213 for accommodating the insulating seat 004, and the bottom wall of the first positioning groove 213 is provided with a first avoidance groove 214 corresponding to the position of the metal sheet 003; when the telescopic end of the telescopic component 510 is extended and the insertion boss 211 is in contact with the aluminum end cover 001 of the motor, the insertion positioning groove 212 is sleeved outside the plug-in part 002, and the insulating seat 004 is inserted into the first groove depth relative to the plug-in part 002.

[0066] Exemplarily, during the operation of the first insertion component 210, when the telescopic end of the telescopic component 510 extends and makes the insertion boss 211 abut against the motor aluminum end cover 001, the insertion positioning groove 212 will be sleeved on the outside of the plug-in portion 002 to form a preliminary alignment. At the same time, the bottom wall of the insertion positioning groove 212 is provided with a first positioning groove 213 for accommodating the insulating seat 004. The insulating seat 004 is a protective structure sleeved on the end of the metal sheet 003, and its height is greater than the depth of the plug-in groove of the plug-in portion 002, in order to provide electrical insulation protection for the metal sheet 003 and prevent direct contact during the insertion process;

[0067] Among them, the first positioning groove 213 is not only used to accommodate the insulating seat 004, but also provides space through the first avoidance groove 214 on the bottom wall of the groove to prevent the metal sheet 003 from being squeezed or deformed during insertion. The position of the first avoidance groove 214 corresponds to the plug-in position of the metal sheet 003, and its size matches the metal sheet 003 to ensure that the smooth entry of the metal sheet 003 is not interfered with during the insertion process. Through the above design, the first insertion component 210 can achieve accurate positioning and partial insertion of the plug-in part 002 and the metal sheet 003. This process not only improves the assembly accuracy, but also reduces the risk of assembly failure caused by position deviation, and provides a stable foundation for the subsequent second insertion component 220 to further push the insulating seat 004 and the metal sheet 003 to the deepest part of the plug-in slot.

[0068] Furthermore, if Figures 6 to 9 As shown, the insertion boss 211 is provided with a spring installation groove 221 along the first direction, and the spring installation groove 221 extends from the end surface of the insertion boss 211 to the bottom wall of the first positioning groove 213; the bottom wall of the insertion positioning groove 212 is also provided with a transition groove 222 connecting the spring installation groove 221 and the first positioning groove 213; the second insertion component 220 includes a compression spring 223 installed in the spring installation groove 221 along the first direction, a trigger block 224 installed at one end of the compression spring 223 and partially protruding from the spring installation groove 221, and a trigger block 224 installed at the compression spring 223. The other end is a pressing block 225 located on one side of the transition groove 222; the second insertion component 220 also includes a limiting shaft 226 arranged in the transition groove 222 and a spring 227 with the limiting shaft 226 as the rotation center, one end of the spring 227 extends into the spring mounting groove 221 and abuts against the pressing block 225, and the other end of the spring 227 extends into the first positioning groove 213, which is used to push the insulating seat 004; wherein, the other end of the spring 227 is closer to the bottom wall of the first positioning groove 213 than one end of the spring 227; the above structure has the advantage of being compact.

[0069] Exemplarily, in the final stage of the first insertion component 210 inserting the insulating seat 004 into the first groove depth of the plug-in slot, that is, before the insertion boss 211 abuts against the motor aluminum end cover 001, the trigger block 224 first abuts against the motor aluminum end cover 001, so that the compression spring 223 is compressed. When the trigger block 224 overcomes the elastic force of the compression spring 223 and abuts against the groove edge of the spring mounting slot 221, that is, the insertion boss 211, it means that the insertion boss 211 abuts against the motor aluminum end cover 001 through the trigger block 224. At this time, the insulating seat 004 has been inserted into the first groove depth of the plug-in slot through the first insertion component 210. During the process of the trigger block 224 compressing the compression spring 223, that is, in the final stage when the first insertion component 210 inserts the insulating seat 004 into the first groove depth of the plug-in slot, the compression spring 223 is compressed to apply pressure to the pressing block 225 to push the pressing block 225, and the pressing block 225 is used to press down one end of the spring piece 227, so that the other end of the spring piece 227 is tilted up, specifically, the tilted up value of the second groove depth, thereby quickly pushing the insulating seat 004 to the deepest part of the plug-in slot. Through this two-stage insertion action, the depth of insertion of the insulating seat 004 and the metal sheet 003 can be controlled. Especially in the final stage of insertion, it is often difficult to ensure further insertion of the insulating seat 004 and the metal sheet 003 due to the increase in resistance, thereby affecting the tightness. After introducing structures such as the compression spring 223 and the spring 227, the insulating seat 004 and the metal sheet 003 can be pushed forward again to ensure that the insertion depth of the insulating seat 004 and the metal sheet 003 is sufficient, and the vibration or impact force that may occur during the insertion process can be absorbed to protect the physical structure and functional integrity of the insulating seat 004 and the metal sheet 003.

[0070] As another optional embodiment, the second insertion component 220 can also be a cylinder, which is configured to be able to extend in the final stage when the first insertion component 210 inserts the insulating seat 004 into the first groove depth of the plug-in slot, thereby pushing the insulating seat 004 to the deepest part of the plug-in slot.

[0071] On the basis of the above embodiment, the insertion boss 211 is further provided with an escape opening 215, which penetrates through the groove wall on one side of the insertion positioning groove 212. The escape opening 215 provides additional space on one side of the insertion positioning groove 212, so that the metal sheet 003 can move more freely during the insertion process, thereby avoiding excessive extrusion or material damage caused by space limitations. At the same time, the escape opening 215 provides a buffer area for the insertion operation of the metal sheet 003, making the insertion process smoother.

[0072] On the basis of the above-mentioned embodiment, the detection component 300 includes a clamping unit 310 and a visual detection unit 320, the clamping unit 310 is used to clamp the upper and lower ends of the insulating seat 004, and the visual detection unit 320 is used to obtain the protruding distance of the insulating seat 004 relative to the plug-in portion 002; wherein, the assembly component 200, the clamping unit 310, the heating component 400 and the visual detection unit 320 are arranged on the rotating disk 522 along the circumferential direction.

[0073] Exemplarily, as part of the production method of the aluminum end cover of the new energy vehicle motor, it may include:

[0074] S201, the rotating cylinder 521 drives the rotating disk 522 to rotate, so that the clamping claw unit 310 is aligned with the insulating seat 004, and the telescopic component 510 drives the clamping claw unit 310 to extend, and the clamping claw unit 310 clamps the insulating seat 004 from both sides; at this time, Figure 7 As shown, it is equivalent to the rotating disk 522 rotating 90° clockwise, the clamping jaw unit 310 clamps the insulating seat 004 from both sides, and the visual inspection unit 320 observes the insulating seat 004 from the side from left to right;

[0075] S202, applying a retracting force to the clamping claw unit 310 through the telescopic assembly 510, and obtaining a protruding distance of the insulating seat 004 relative to the plug-in portion 002 through the visual detection unit 320;

[0076] S203, if the protruding distance exceeds the preset qualified distance, it is determined that the tightness of the motor aluminum end cover 001 is unqualified, and tightness correction is performed;

[0077] Among them, the specific structure of the clamping unit 310 is not limited, and it can clamp the insulating seat 004 from the upper and lower sides and leave space for observation by the visual detection unit 320; the visual detection unit 320 is not limited, and it can acquire images, including but not limited to optical monocular cameras, binocular vision components, etc.

[0078] On the basis of the above-mentioned embodiment, the heating component 400 includes a heating boss 410 arranged on a rotating disk 522, and the heating boss 410 includes a first boss 411 and a second boss 412 arranged opposite to each other, and a heating cavity for heating the insulating seat 004 is formed between the first boss 411 and the second boss 412, and at least one of the first boss 411 and the second boss 412 is provided with an electric heating wire; an extrusion opening 413 for the extrusion part 610 to enter is reserved between the first boss 411 and the second boss 412; the rotating disk 522 is provided with a second positioning groove 420 corresponding to the position of the insulating seat 004 between the first boss 411 and the second boss 412, and a second avoidance groove 430 corresponding to the position of the metal sheet 003.

[0079] On the basis of the above-mentioned embodiment, the extrusion assembly 600 includes a lifting cylinder 620, and the lifting end of the lifting cylinder 620 is rotatably connected to the extrusion part 610; the lifting end of the lifting cylinder 620 is also equipped with an adjustment assembly, which is arranged between the upper ends of the two extrusion parts 610, and is used to adjust the opening and closing angle between the two extrusion parts 610. Among them, the adjustment assembly includes but is not limited to structures such as cylinders, motors, and electromagnets, which can change the angle between the two extrusion parts 610. Exemplarily, an electromagnet can be installed at the upper end of one extrusion part 610, and a magnet with the same polarity can be installed at the upper end of the other extrusion part 610. When the electromagnet is energized, the electromagnet and the magnet can be repelled, and the upper ends of the two extrusion parts 610 are moved away from each other, while the extrusion part 610 is rotatably connected to the lifting end, so that the lower ends of the two extrusion parts 610 are close to each other, thereby achieving the extrusion of the plug-in part 002. In this process,

[0080] It is understandable that the first boss 411 and the second boss 412 arranged on the upper and lower sides form a heating chamber, and the plug-in part 002, the insulating seat 004 and the metal sheet 003 are uniformly heated from the outside to the inside by using an electric heating wire or other heat source. During the heating process, the plug-in part 002 and the metal sheet 003 undergo volume changes due to the more obvious thermal expansion characteristics of the materials. Among them, the aluminum plug-in part 002 has a more significant expansion amplitude relative to the metal sheet 003 due to its higher expansion coefficient. The core purpose is to use the thermal expansion effect to provide adjustable plastic conditions for subsequent correction operations. While heating, the extrusion parts 610 on both sides apply pressure to the plug-in part 002 by moving toward each other, so that the plug-in part 002 undergoes plastic deformation in the expanded state, gradually tightens inward, and forms a closer contact with the metal sheet 003 and the insulating seat 004. Since the material has been heated at this time, the plasticity of the aluminum material is significantly improved, and the pressure applied to the plug-in part 002 during the extrusion process makes it easier to deform it, eliminating the gap problem caused by insufficient tightness in the initial assembly. After the heating and extrusion process, the plug-in part 002, the metal sheet 003 and the insulating seat 004 cool down as the temperature decreases. Since the aluminum material of the plug-in part 002 shrinks significantly during heat, an interference fit is formed between the plug-in part 002 and the metal sheet 003 during the cooling process, which is manifested as plastic deformation and residual stress retention in the bonding area, thereby significantly improving the strength and stability of the assembly.

[0081] On the basis of the above-mentioned embodiment, the end cover fixture 100 includes a rotating end cover cylinder and a fixture part installed on the rotating end cover cylinder.

[0082] Embodiment 2:

[0083] This embodiment also provides a method for producing an aluminum end cover of a new energy vehicle motor, which is applied to the production equipment of the aluminum end cover of a new energy vehicle motor in the first embodiment, comprising:

[0084] S101, placing the motor aluminum end cover 001 into the end cover fixture 100, and placing the metal sheet 003 into the assembly component 200;

[0085] S102, inserting the metal sheet 003 into the plug-in portion 002 of the motor aluminum end cover 001 through the assembly component 200;

[0086] S103, testing the tightness between the metal sheet 003 and the plug-in portion 002;

[0087] S104 , when the tightness between the metal sheet 003 and the plug-in portion 002 is unqualified, the plug-in portion 002 is heated and pressurized.

[0088] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A production equipment for aluminum end covers of new energy vehicle motors, characterized in that: include: An end cover clamp (100), the end cover clamp (100) being used to position and fix the motor aluminum end cover (001), the motor aluminum end cover (001) being provided with a plug-in portion (002) extending along a first direction, the plug-in portion (002) being used to plug in a metal sheet (003); An assembly component (200) is arranged on one side of the end cover fixture (100) along the first direction and is used to partially insert the metal sheet (003) into the plug-in portion (002); A detection component (300) for detecting the tightness of the metal sheet (003); A heating assembly (400) is used to heat a plug-in portion (002) of an aluminum end cover (001) of a motor; An extrusion assembly (600) is disposed above the end cover fixture (100), and comprises two extrusion parts (610) that can move towards each other; The heating component (400) is used to heat the plug-in portion (002) when the tightness of the metal sheet (003) is unqualified, and the two extrusion portions (610) can be sleeved on the outside of the plug-in portion (002) and move towards each other to extrude the plug-in portion (002); A telescopic assembly (510) is provided on one side of the end cap fixture (100); a rotating assembly (520) is installed at the telescopic end of the telescopic assembly (510); the telescopic end can move away from or approach the end cap fixture (100) along the first direction; The rotating component (520) comprises a rotating cylinder (521) and a rotating disk (522) mounted on the rotating cylinder (521); the assembling component (200), the detecting component (300) and the heating component (400) are mounted on the rotating disk (522) in a circumferentially distributed manner; An insulating seat (004) is provided on the outer sleeve of the end of the metal sheet (003) inserted into the plug-in portion (002); the height of the insulating seat (004) is greater than the depth of the plug-in slot of the plug-in portion (002); The assembly component (200) comprises a first insertion component (210) and a second insertion component (220) which are arranged on the rotating disk (522); The first insertion component (210) comprises an insertion boss (211), the insertion boss (211) being provided with an insertion positioning groove (212) matching the outer contour of the plug-in portion (002); a first positioning groove (213) for accommodating an insulating seat (004) is provided on the bottom wall of the insertion positioning groove (212), and a first avoidance groove (214) is provided on the bottom wall of the first positioning groove (213) at a position corresponding to the metal sheet (003); When the telescopic end of the telescopic assembly (510) is extended and the insertion boss (211) is in contact with the motor aluminum end cover (001), the insertion positioning groove (212) is sleeved outside the plug-in portion (002), and the insulating seat (004) is inserted to a first groove depth relative to the plug-in portion (002); The second insertion component (220) is used to insert the insulating seat (004) to a second groove depth relative to the plug-in portion (002), and the sum of the first groove depth and the second groove depth is equal to the groove depth of the plug-in groove.

2. The production equipment of the aluminum end cover of the new energy vehicle motor according to claim 1 is characterized in that: The insertion boss (211) is provided with a spring installation groove (221) along the first direction, and the spring installation groove (221) extends from the end surface of the insertion boss (211) to the bottom wall of the first positioning groove (213); the bottom wall of the insertion positioning groove (212) is also provided with a transition groove (222) connecting the spring installation groove (221) and the first positioning groove (213); The second insertion component (220) comprises a compression spring (223) installed in the spring installation groove (221) along the first direction, a trigger block (224) installed at one end of the compression spring (223) and partially protruding from the spring installation groove (221), and a pressing block (225) installed at the other end of the compression spring (223) and located at one side of the transition groove (222); The second insertion component (220) further comprises a limiting shaft (226) arranged in the transition groove (222) and a spring sheet (227) with the limiting shaft (226) as a rotation center, one end of the spring sheet (227) extending into the spring installation groove (221) to abut against the pressing block (225), and the other end of the spring sheet (227) extending into the first positioning groove (213) to squeeze the insulating seat (004); The other end of the spring sheet (227) is closer to the bottom wall of the first positioning slot (213) than one end of the spring sheet (227).

3. The production equipment of the aluminum end cover of the new energy vehicle motor according to claim 2 is characterized in that: The insertion boss (211) is also provided with an avoidance opening (215), and the avoidance opening (215) penetrates a side groove wall of the insertion positioning groove (212).

4. The production equipment of the aluminum end cover of the new energy vehicle motor according to claim 2 is characterized in that: The detection assembly (300) comprises a clamping jaw unit (310) and a visual detection unit (320), wherein the clamping jaw unit (310) is used to clamp the upper and lower ends of the insulating seat (004), and the visual detection unit (320) is used to obtain a protruding distance of the insulating seat (004) relative to the plug-in portion (002); Wherein, the assembly component (200), the clamping claw unit (310), the heating component (400) and the visual inspection unit (320) are arranged on the rotating disk (522) along a circumferential direction.

5. The production equipment of the aluminum end cover of the new energy vehicle motor according to claim 1 is characterized in that: The heating assembly (400) comprises a heating boss (410) disposed on the rotating disk (522), the heating boss (410) comprising a first boss (411) and a second boss (412) disposed opposite to each other, a heating cavity for heating the insulating seat (004) is formed between the first boss (411) and the second boss (412), at least one of the first boss (411) and the second boss (412) is provided with an electric heating wire; an extrusion opening (413) for the extrusion portion (610) to enter is reserved between the first boss (411) and the second boss (412); The rotating disk (522) is provided with a second positioning groove (420) between the first boss (411) and the second boss (412) at a position corresponding to the insulating seat (004), and a second avoidance groove (430) at a position corresponding to the metal sheet (003).

6. The production equipment of the aluminum end cover of the new energy vehicle motor according to claim 1 is characterized in that: The extrusion assembly (600) comprises a lifting cylinder (620), the lifting end of the lifting cylinder (620) being rotatably connected to the extrusion portion (610); an adjustment assembly is also installed at the lifting end of the lifting cylinder (620), and the adjustment assembly is arranged between the upper ends of the two extrusion portions (610) and is used to adjust the opening and closing angle between the two extrusion portions (610).

7. The production equipment of aluminum end cover of new energy automobile motor according to claim 1 is characterized in that: The end cover clamp (100) comprises a rotating end cover cylinder and a clamp portion mounted on the rotating end cover cylinder.

8. A method for producing aluminum end covers for new energy vehicle motors, characterized in that: The production equipment for the aluminum end cover of the new energy vehicle motor according to any one of claims 1 to 7 comprises: Place the motor aluminum end cover into the end cover fixture and place the metal sheet into the assembly component; Insert the metal sheet into the plug-in part of the aluminum end cover of the motor through the assembly component; Check the tightness between the metal sheet and the plug-in part; When the tightness between the metal sheet and the plug-in portion is unqualified, the plug-in portion is heated and pressurized.

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