Stator bonding and laminating device and method

Abstract

The invention discloses a stator bonding and laminating device, relates to the technical field of sine and cosine angle sensors, and particularly relates to a stator laminating device capable of controlling and buffering pressure, in particular to a stator bonding and laminating device which comprises a base, and a cylindrical laminating groove is formed in the base. A pressure testing device used for feeding back pressure is arranged at the bottom of the laminating groove, a stator placing seat is further arranged in the laminating groove, the stator placing seat is connected with the base through a guide device, and a positioning device used for circumferentially limiting a stator sheet is arranged on the stator placing seat; according to the invention, the pressure testing device can accurately control the pressure of each stator sheet during bonding and lamination, the influence of uneven thickness of the stator sheets on bonding is compensated and eliminated, the operation is simple and convenient, and the stress of each stator sheet is uniform and equal.

Description

Technical Field

[0001] The present invention relates to the technical field of sine-cosine angle sensors, and in particular to a stator lamination device and method capable of controlling and buffering pressure, and in particular to a stator bonding lamination device and method. Background Art

[0002] Iron-nickel soft magnetic alloy 1J50 is often used as stator and rotor material for aviation sensors due to its high magnetic permeability and low coercive force. For single / double redundant sine and cosine sensors, the stator involves stamping, heat treatment, cleaning, bonding, lamination, inner and outer turning, winding and other processes before being assembled into the sensor.

[0003] At present, the stator bonding process of most similar products is generally to glue the stator sheets individually, apply locking force to stack them after all the stator sheets are bonded, and finally cure them at high temperature. This method ignores the uniformity of pressure between each stator sheet, and the force of each stator sheet is not the same as the pressure during the final stacking, that is, the first stator sheet bonded, the middle stator sheet, and the last stator sheet bonded are subjected to different degrees of extrusion. This is because this method is difficult to accurately control the stress when bonding each stator sheet, and does not consider the degree of solidification of the glue between the first bonded stator sheets, the uneven glue, the micro deformation of the stator sheet and the uneven force caused by the glue solidification. At the same time, the uneven force between the stator sheets during the bonding process can easily cause the stator to crack in the subsequent turning process. After the bonding of each stator sheet is completed, a stacking force is applied and locked. In order to ensure the bonding strength, a large stacking force is often set, but excessive stacking force often causes a significant reduction in the final stator magnetic properties. However, 1J50 is a stress-sensitive soft magnetic material. The uneven stress during the bonding and lamination process will directly affect the quality of the final stator's magnetic performance. The magnetic performance of stators mass-produced using this bonding and lamination method fluctuates greatly, and the magnetic performance loss after stator lamination can even exceed 90%.

[0004] In the general stator bonding and lamination process, in order to ensure the consistency of the stator size, a limit process is performed when laminating the stator, but this method ignores the impact of uneven stator sheet thickness. The thickness of stator sheets from different batches may exceed the standard thickness. Due to the cumulative error, the stator thickness after bonding is different, but the final stator height is consistent. Therefore, for stators with a thickness higher than the standard value, the stacking pressure is relatively large, and the stress on the stator increases; for stators with a thickness lower than the standard value, the stacking pressure is relatively small, and the stator bonding strength is weakened. This device applies equal stacking pressure on each stator sheet, without considering the impact of the cumulative error of the stator sheet size on the bonding effect. Summary of the invention

[0005] In view of the deficiencies in the prior art, the patent of the present invention provides a stator bonding and lamination device, which can accurately control the pressure of each stator sheet during bonding and lamination, compensate and eliminate the influence of uneven thickness of the stator sheets on bonding, and is easy to operate. Each stator sheet is subjected to uniform force, the quality of the bonded and laminated stator is significantly improved, the cracking during the stator turning process is reduced, and the magnetic property loss of the stator is stabilized within 10%.

[0006] The present invention discloses a stator bonding and laminating device, comprising a base, a cylindrical laminating groove is arranged on the base, a pressure testing device for feedback pressure is arranged at the bottom of the laminating groove, a stator placement seat is also arranged in the laminating groove, the stator placement seat is connected to the base through a guide device, and a positioning device for circumferentially limiting the stator sheet is arranged on the stator placement seat; It also includes a stacking device for applying pressure, which includes a pressing plate and a stacking column, one end of the stacking column is arranged toward the stator placement seat, and the other end of the stacking column is fixedly connected to the pressing plate, and the pressing plate is connected to the base through a buffer device.

[0007] Preferably, the buffer device comprises a support column, the pressure plate is connected to the base through at least two support columns, one end of the support column is fixedly connected to the base, and the other end of the support column is connected to the pressure plate through a sliding bearing, and the sliding bearing is sleeved on the support column; A return spring is sleeved on the support column, one end of the return spring abuts against the pressure plate, and the other end abuts against the base; A limiting block is arranged on one end of the support column passing through the pressure plate to prevent the sliding bearing from sliding out of the support column, and the limiting block is fixedly connected to the end of the support column.

[0008] Preferably, a spring support sleeve is sleeved on each of the support columns, one end of the spring support sleeve abuts against the base, and one end of the return spring close to the base abuts against the spring support sleeve.

[0009] Preferably, four support columns are provided, and the support columns are arranged in groups of two, and the two groups are symmetrically arranged on the base.

[0010] Preferably, the pressure testing device is a membrane pressure tester, and the stator placement seat is arranged on the membrane pressure tester.

[0011] Preferably, the guide device is a guide column, and two guide columns are fixedly arranged on the base located in the stacking groove, and the guide columns extend toward the pressing plate; The position of the stator placement seat corresponding to the guide column is provided with a guide hole penetrating the stator placement seat, and the guide columns are respectively matched and arranged in the guide holes.

[0012] Preferably, the two guide posts are centrally symmetrically arranged about the central axis of the overlapping groove.

[0013] Preferably, the positioning device is an adhesive positioning plate, which is vertically arranged and radially engaged in the positioning groove on the stator placement seat. The stacking column is provided with an avoidance groove at the position corresponding to the adhesive positioning plate. When the stacking column is pressed down on the stator placement seat, the part of the adhesive positioning plate protruding from the stator placement seat is located in the avoidance groove.

[0014] Preferably, a cylindrical stepped through hole is provided at the center of the stator placement seat, a cylindrical bonding and positioning seat is provided in the stepped through hole, a ring stage for placing the stator sheet is fixedly provided on the circumferential surface of the bonding and positioning seat, the central axis of the ring stage and the central axis of the bonding and positioning seat are located on the same straight line, and the positioning slot is provided on the bonding and positioning seat; The stacked column is in the shape of a hollow ring column, and the size of the stacked column in the radial direction matches the size of the ring platform in the same direction; The bonding and positioning seat is arranged on the pressure testing device.

[0015] A stator bonding and lamination method uses a stator bonding and lamination device to perform stator lamination, and the specific steps are as follows: 1) Place a stator bonding and laminating device on the workbench of a press, connect the lower pressing part of the press to the laminating column, and connect the film pressure tester to the press control system. Automatically collect the feedback signal of the film pressure tester during laminating and loading, and accurately control the pressure of the press; Then set the press preload to 2N, displacement to 0.1mm, and holding time to 15s; 2) Adjust the positioning device to ensure that the pressure plate, positioning device and stator placement seat are in consistent fit; 3) Apply glue to the first stator sheet, with the glued surface facing upwards, and place it into the stator placement seat and use the positioning device to achieve positioning; 4) Place the second stator sheet into the stator placement seat, contact it with the glue-coated surface of the first stator sheet, and reset the pressure test device; 5) Start the press, adjust the press until the stacking column contacts the stator sheet, and observe that the value of the pressure test device is 0, and the press displacement is reset; 6) The press starts loading and monitors the value of the pressure test device; If the displacement reaches 0.1mm and the value of the pressure test device is not 10N, continue to increase the displacement. When the pressure test device feedback is 10N, stop the displacement, and the press will automatically unload after maintaining the pressure for 15s. If the displacement does not reach 0.1mm, and the pressure test device has fed back 10N, the loading will stop, and the press will automatically unload after holding the pressure for 15s. 7) Apply glue on one side of the third stator sheet, with the glued side facing down, and place it into the stator placement seat; reset the pressure test device; repeat steps 5-6; 8) Apply glue on one side of the fourth stator sheet, with the glued side facing downward, and place it into the stator placement seat; reset the pressure test device; repeat steps 5-6; Repeat the above steps until the required number of stator sheets is reached, install the locking cover that matches the stator placement seat on the stator placement seat, and reset the pressure test device; Tighten the mounting screws on the upper cover used to connect the stator placement seat slightly, multiple times, and symmetrically, and monitor the pressure test device. Stop tightening when the pressure feedback of the pressure test device meets the specified pressure range; 9) After the stator bonding and lamination is completed, it is taken out from the stator placement seat and subjected to high temperature curing.

[0016] The present invention has the following beneficial effects: The present invention utilizes a pressure testing device to accurately control the pressure of each stator sheet during bonding and stacking, thereby compensating and eliminating the influence of uneven thickness of the stator sheets on bonding, and is easy to operate, and each stator sheet is subjected to uniform force.

[0017] A film pressure tester is installed at the bottom of the stator placement seat of the present invention, and the pressure is fed back through the film pressure tester. In this way, the pressure applied to each stator sheet is accurately controlled, avoiding the unstable magnetic properties of the stator caused by unequal forces between the stator sheets.

[0018] The quality of the stator laminated by controlling and buffering pressure bonding in the present invention is improved, and the cracking of the stator in the turning process is significantly reduced. According to tests, the magnetic performance loss of the stator is stabilized within 10%.

[0019] After each stator sheet of the present invention is bonded, a uniform pressure holding time is set, thereby ensuring the bonding strength of the stator, while ensuring the process consistency and quality stability of the bonding; by using the present invention to bond and stack the stator, a lower stacking force can be set to ensure the bonding strength and quality of the stator, avoiding the sharp loss of magnetic properties caused by excessive stacking stress, and ensuring the high magnetic performance level of the stator.

[0020] The supporting column of the present invention is equipped with a return spring to buffer the stacking pressure, ensuring that the stacking pressure on each stator plate is applied slowly, evenly and equally. This method can greatly reduce the adverse effects of stress on the lattice distortion, dislocation, magnetic domain deformation or destruction, and obstruction of domain wall movement inside the soft magnetic material, thereby avoiding the irreversible damage of the stacking pressure impulse to the material's magnetic domain structure.

[0021] The present invention is provided with stacking pressure regulating and compensating measures: when the stacking pressure is not satisfied but the displacement is satisfied, the pressure compensation is started until the pressure meets the requirement, the pressure is maintained and then the pressure is unloaded, and the stacking column is reset; when the stacking pressure is satisfied but the displacement is not satisfied, the displacement is stopped, the pressure is maintained and then the pressure is unloaded, and the stacking column is reset.

[0022] The present invention applies an equal stacking pressure on each stator sheet, without considering the influence of the cumulative error of the stator sheet size on the bonding effect.

[0023] The positioning piece and the bonding seat of the present invention are flexible and adjustable, thus ensuring the neatness of the bonding of the stator sheets.

[0024] The present invention fully considers the stress-sensitive characteristics of 1J50 material, and can avoid irreversible deformation of the internal structure of the material caused by the pressure impulse and prevent adverse effects caused by improper control of artificially applied pressure through stacking pressure buffer pressure and precise control.

[0025] The entire stacking and loading process of the present invention is completed according to the set loading curve, which ensures the consistency of the stress state and process of each stator sheet to the greatest extent and avoids the error caused by manual stacking; The film pressure tester of the present invention is provided with a system cross-linking with the press control system, and the feedback signal of the pressure tester is automatically collected during stacking and loading, thereby realizing precise control of the pressure, avoiding errors in human operation, improving the quality of the finished stator, and ensuring the simplicity and controllability of the bonding and stacking process.

[0026] The stator placement seat and the bonding positioning seat of the present invention can be quickly disassembled and assembled, the entire device has no complicated and special connection method and no complicated parts, the device is easy to standardize, and maintenance and replacement are simple.

[0027] The invention can realize the bonding and lamination of stators of different specifications by replacing the stator placement seat and the bonding positioning seat, and the device has good versatility.

[0028] The invention has small volume, light weight, and easy operation, and the laminated stator has reliable quality and good consistency.

[0029] In the bonded and laminated stator of the present invention, there is no situation where the first bonded stator sheet, the middle stator sheet and the last bonded stator sheet are subjected to different degrees of compression, and the stator lamination device can ensure that the stress states of the stator sheets are the same. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The figure is a three-dimensional diagram of a stator bonding and laminating device according to the present invention.

[0031] Figure 2 It is a partial cross-sectional view of a stator bonding and lamination device of the present invention.

[0032] Figure 3 The present invention is a cross-sectional view of a stator bonding and lamination device.

[0033] Figure 4 This is a schematic diagram of the working principle.

[0034] Figure 5 Schematic diagram of the stator bonding and lamination completion status Figure numerals: 1-press; 2-limiting block; 3-sliding bearing; 4-stacking column; 5-reset spring; 6-support column; 7-bonding positioning plate; 8-stator; 9-bonding positioning seat; 10-spring supporting sleeve; 11-fixing plate; 12-stator placement seat; 13-base; 14-guide column; 16-thin film pressure tester. DETAILED DESCRIPTION

[0035] The present invention discloses a stator bonding and laminating device, comprising a base 13, the base 13 is provided with a cylindrical laminating groove, the bottom of the laminating groove is provided with a pressure testing device for feedback pressure, the laminating groove is further provided with a stator placement seat 12, the stator placement seat 12 is connected to the base 13 through a guide device, and the stator placement seat 12 is provided with a positioning device for circumferentially limiting the stator 8 sheets; It also includes a stacking device for applying pressure, which includes a pressing plate and a stacking column 4, one end of the stacking column 4 is arranged toward the stator placement seat 12, and the other end of the stacking column 4 is fixedly connected to the pressing plate, and the pressing plate is connected to the base 13 through a buffer device.

[0036] In one embodiment, the buffer device includes a support column 6, the pressure plate is connected to the base 13 through at least two support columns 6, one end of the support column 6 is fixedly connected to the base 13, and the other end of the support column 6 is connected to the pressure plate through a sliding bearing 3, and the sliding bearing 3 is sleeved on the support column 6; The support column 6 is sleeved with a return spring 5, one end of the return spring 5 abuts against the pressure plate, and the other end abuts against the base 13; A limit block 2 is provided on one end of the support column 6 passing through the pressure plate to prevent the sliding bearing 3 from sliding out of the support column 6 , and the limit block 2 is fixedly connected to the end of the support column 6 .

[0037] In one embodiment, a spring support sleeve 10 is sleeved on each of the support columns 6 , one end of the spring support sleeve 10 abuts against the base 13 , and one end of the return spring 5 close to the base 13 abuts against the spring support sleeve 10 .

[0038] In one embodiment, four support columns 6 are provided. The support columns 6 are grouped in pairs, and the two groups are symmetrically arranged on the base 13 .

[0039] In one embodiment, the pressure testing device is a membrane pressure tester 16 , and the stator placement seat 12 is disposed on the membrane pressure tester 16 .

[0040] In one embodiment, the guide device is a guide column 14, and two guide columns 14 are fixedly arranged on the base 13 located in the lamination groove, and the guide columns 14 extend toward the pressing plate; The positions of the stator placement seat 12 corresponding to the guide pillars 14 are provided with guide holes penetrating the stator placement seat 12 , and the guide pillars 14 are respectively matched and arranged in the guide holes.

[0041] In one embodiment, the two guide posts 14 are centrally symmetrically arranged about the central axis of the overlapping groove.

[0042] In one embodiment, the positioning device is an adhesive positioning sheet 7, which is vertically arranged and radially engaged in the positioning groove on the stator placement seat 12. The stacking column 4 is provided with an avoidance groove corresponding to the position of the adhesive positioning sheet 7. When the stacking column 4 is pressed down on the stator placement seat 12, the part of the adhesive positioning sheet 7 protruding from the stator placement seat 12 is located in the avoidance groove.

[0043] In one embodiment, a cylindrical stepped through hole is provided at the center of the stator placement seat 12, a cylindrical bonding and positioning seat 9 is provided in the stepped through hole, a ring stage for placing the stator 8 pieces is fixedly provided on the circumferential surface of the bonding and positioning seat 9, the central axis of the ring stage and the central axis of the bonding and positioning seat 9 are located on the same straight line, and the positioning slot is provided on the bonding and positioning seat 9; The stacked column 4 is in the shape of a hollow ring column, and the size of the stacked column 4 in the radial direction matches the size of the ring platform in the same direction; The bonding and positioning seat 9 is arranged on the pressure testing device. The bonding and positioning seat 9 is connected to the stator placement seat 12 through a fixing sheet 11, and the fixing sheet 11 is used for circumferential limitation of the bonding and positioning seat 9. When in use, corresponding slots can be arranged on the bonding and positioning seat 9 and the stator placement seat 12, and the fixing sheet 11 is arranged in the slots, and the corresponding two sides of the fixing sheet 11 extend into the slots on the bonding and positioning seat 9 and the stator placement seat 12 respectively.

[0044] A stator 8 bonding and laminating method uses a stator bonding and laminating device to perform lamination of stator 8 sheets, and the specific steps are as follows: 1) Place a stator bonding and laminating device on the workbench of the press 1, connect the lower pressing part of the press 1 to the laminating column 4, and connect the film pressure tester 16 to the control system of the press 1. Automatically collect the feedback signal of the film pressure tester 16 during laminating and loading, and accurately control the pressure of the press 1; Then set the pre-pressure of press 1 to 2N, the displacement to 0.1mm, and the holding time to 15s; 2) Adjust the positioning device so that the pressure plate, the positioning device and the stator placement seat 12 are in consistent fit; 3) Apply glue to the first stator 8 pieces, with the glued surface facing upwards, and place them into the stator placement seat 12 and use the positioning device to achieve positioning; 4) Place the second stator 8 pieces into the stator placement seat 12, contact the glue-coated surface of the first stator 8 pieces, and reset the pressure test device; 5) Start the press 1, adjust the press 1 until the stacking column 4 contacts the stator 8, and observe that the value of the pressure test device is 0, and the displacement of the press 1 is reset to zero; 6) Press 1 starts loading and monitors the value of the pressure test device; If the displacement reaches 0.1mm and the value of the pressure test device is not 10N, the displacement will continue to increase. When the pressure test device feedback reaches 10N, the displacement will stop. After maintaining the pressure for 15s, the press 1 will automatically unload. If the displacement does not reach 0.1mm, and the pressure test device has fed back 10N, the loading is stopped, and after maintaining the pressure for 15s, the press 1 is automatically unloaded; 7) Apply glue on one side of the third stator 8, with the glued side facing downward, and place it into the stator placement seat 12; reset the pressure test device; repeat steps 5-6; 8) Apply glue on one side of the fourth stator 8, with the glued side facing downward, and place it into the stator placement seat 12; reset the pressure test device; repeat steps 5-6; Repeat the above steps until the required number of stator pieces 8 is reached, install the locking cover matching the stator placement seat 12 on the stator placement seat 12, and reset the pressure test device; Tighten the mounting screws on the upper cover for connecting the stator placement seat 12 slightly, multiple times, and symmetrically, and monitor the pressure test device. When the pressure feedback of the pressure test device meets the specified pressure range, stop tightening; 9) After the stator 8 is bonded and laminated, it is taken out from the stator placement seat 12 and cured at high temperature.

[0045] The present invention utilizes a pressure testing device to accurately control the pressure of each of the eight stator sheets during bonding and stacking, thereby compensating and eliminating the influence of uneven thickness of the eight stator sheets on bonding, and is easy to operate, and each of the eight stator sheets is evenly stressed.

[0046] A film pressure tester 16 is installed at the bottom of the stator placement seat 12 of the present invention, and the pressure is fed back through the film pressure tester 16. In this way, the pressure applied to each stator 8 is accurately controlled, avoiding the unstable magnetic properties of the stator 8 caused by unequal forces between the stators 8.

[0047] The quality of the stator 8 controlled and buffered by the pressure bonding and lamination of the present invention is improved, and the cracking of the stator 8 in the turning process is significantly reduced. According to tests, the magnetic performance loss of the stator 8 is stabilized within 10%.

[0048] After each stator 8 is bonded, a uniform holding time is set. In this way, the bonding strength of the stator 8 is guaranteed, and the bonding process consistency and quality stability are guaranteed. By using the present invention to bond and stack the stator 8, a lower stacking force can be set to ensure the bonding strength and quality of the stator 8, thereby avoiding a sharp loss of magnetic properties caused by excessive stacking stress, and ensuring a high magnetic property level of the stator 8.

[0049] The support column of the present invention is equipped with a return spring 5 to buffer the stacking pressure, ensuring that the stacking pressure on each stator 8 is applied slowly, evenly and equally. This method can greatly reduce the adverse effects of stress on the lattice distortion, dislocation, magnetic domain deformation or destruction, and obstruction of domain wall movement inside the soft magnetic material, thereby avoiding the irreversible damage of the stacking pressure impulse to the magnetic domain structure of the material.

[0050] The present invention is provided with a stacking pressure adjustment and compensation measure: when the stacking pressure is not satisfied but the displacement is satisfied, the pressure compensation is started until the pressure meets the requirement, the pressure is maintained and then the load is unloaded, and the stacking column 4 is reset; when the stacking pressure is satisfied but the displacement is not satisfied, the displacement is stopped, the pressure is maintained and then the load is unloaded, and the stacking column 4 is reset.

[0051] The present invention applies an equal stacking pressure on each of the eight stator pieces, without considering the influence of the accumulated error of the size of the eight stator pieces on the bonding effect.

[0052] The positioning piece and the bonding seat of the present invention are flexible and adjustable, thus ensuring the neatness of bonding of the eight stator pieces.

[0053] The present invention fully considers the stress-sensitive characteristics of 1J50 material, and can avoid irreversible deformation of the internal structure of the material caused by the pressure impulse and prevent adverse effects caused by improper control of artificially applied pressure through stacking pressure buffer pressure and precise control.

[0054] The entire stacking and loading process of the present invention is completed according to the set loading curve, which ensures the consistency of the stress state and process of each of the eight stator sheets to the greatest extent, and avoids the error caused by manual stacking; The film pressure tester 16 of the present invention is provided with a system interconnection with the control system of the press 1, and the feedback signal of the pressure tester is automatically collected during stacking and loading, thereby realizing precise control of the pressure, avoiding errors in human operation, improving the quality of the finished stator 8, and ensuring the simplicity and controllability of the bonding and stacking process.

[0055] The stator placement seat 12 and the bonding and positioning seat 9 of the present invention can be quickly disassembled and assembled. The entire device has no complicated and special connection methods and no complicated parts. This device is easy to standardize and is easy to repair and replace.

[0056] The present invention can realize the bonding and lamination of stators 8 of different specifications by replacing the stator placement seat 12 and the bonding positioning seat 9, and the device has good versatility.

[0057] The invention has small volume, light weight, and is easy to operate, and the laminated stator 8 has reliable quality and good consistency.

[0058] In the bonded and laminated stator 8 of the present invention, there is no situation where the first bonded stator 8 piece, the middle stator 8 piece, and the last bonded stator 8 piece are subjected to different degrees of compression. This stator 8 lamination device can ensure that the stress state of each stator 8 piece is equal.

Claims

1. A stator bonding and lamination device, comprising a base, characterized in that: The base is provided with a cylindrical lamination groove, a pressure testing device for feedback pressure is provided at the bottom of the lamination groove, a stator placement seat is also provided in the lamination groove, the stator placement seat is connected to the base through a guide device, and a positioning device for circumferentially limiting the stator sheet is provided on the stator placement seat; It also includes a stacking device for applying pressure, which includes a pressing plate and a stacking column, one end of the stacking column is arranged toward the stator placement seat, and the other end of the stacking column is fixedly connected to the pressing plate, and the pressing plate is connected to the base through a buffer device.

2. A stator bonding and lamination device as claimed in claim 1, characterized in that: The buffer device comprises a support column, the pressure plate is connected to the base through at least two support columns, one end of the support column is fixedly connected to the base, and the other end of the support column is connected to the pressure plate through a sliding bearing, and the sliding bearing is sleeved on the support column; A return spring is sleeved on the support column, one end of the return spring abuts against the pressure plate, and the other end abuts against the base; A limiting block is arranged on one end of the support column passing through the pressure plate to prevent the sliding bearing from sliding out of the support column, and the limiting block is fixedly connected to the end of the support column.

3. A stator bonding and lamination device as claimed in claim 2, characterized in that: The support columns are all sleeved with spring support sleeves, one end of the spring support sleeves is against the base, and one end of the reset spring close to the base is against the spring support sleeve.

4. A stator bonding and lamination device as claimed in claim 2, characterized in that: The supporting columns are arranged in four numbers, and the supporting columns are grouped in twos, and the two groups are symmetrically arranged on the base.

5. A stator bonding and lamination device as claimed in claim 1, characterized in that: The pressure testing device is a thin film pressure testing instrument, and the stator placement seat is arranged on the thin film pressure testing instrument.

6. A stator bonding and lamination device as claimed in claim 1, characterized in that: The guide device is a guide column, and two guide columns are fixedly arranged on the base located in the stacking groove, and the guide columns extend toward the pressing plate; The position of the stator placement seat corresponding to the guide column is provided with a guide hole penetrating the stator placement seat, and the guide columns are respectively matched and arranged in the guide holes.

7. A stator bonding and lamination device as claimed in claim 6, characterized in that: The two guide posts are centrally symmetrically arranged about the central axis of the overlapping groove.

8. A stator bonding and lamination device as claimed in claim 1, characterized in that: The positioning device is an adhesive positioning piece, which is vertically arranged and radially engaged in the positioning groove on the stator placement seat. The stacking column is provided with an avoidance groove at the position corresponding to the adhesive positioning piece. When the stacking column is pressed down on the stator placement seat, the part of the adhesive positioning piece protruding from the stator placement seat is located in the avoidance groove.

9. A stator bonding and lamination device as claimed in claim 1, characterized in that: A cylindrical stepped through hole is provided at the center of the stator placement seat, a cylindrical bonding and positioning seat is provided in the stepped through hole, a ring stage for placing stator sheets is fixedly provided on the circumferential surface of the bonding and positioning seat, the central axis of the ring stage and the central axis of the bonding and positioning seat are located on the same straight line, and the positioning slot is provided on the bonding and positioning seat; The stacked column is in the shape of a hollow ring column, and the size of the stacked column in the radial direction matches the size of the ring platform in the same direction; The bonding and positioning seat is arranged on the pressure testing device.

10. A stator bonding and lamination method, characterized in that: The stator laminations are laminated using the stator bonding lamination device as claimed in claim 2, and the specific steps are as follows: 1) Place a stator bonding and laminating device on the workbench of a press, connect the lower pressing part of the press to the laminating column, and connect the film pressure tester to the press control system. Automatically collect the feedback signal of the film pressure tester during laminating and loading, and accurately control the pressure of the press; Then set the press preload to 2N, displacement to 0.1mm, and holding time to 15s; 2) Adjust the positioning device to ensure that the pressure plate, positioning device and stator placement seat are in consistent fit; 3) Apply glue to the first stator sheet, with the glued surface facing upwards, and place it into the stator placement seat and use the positioning device to achieve positioning; 4) Place the second stator sheet into the stator placement seat, contact it with the glue-coated surface of the first stator sheet, and reset the pressure test device; 5) Start the press, adjust the press until the stacking column contacts the stator sheet, and observe that the value of the pressure test device is 0, and the press displacement is reset; 6) The press starts loading and monitors the value of the pressure test device; If the displacement reaches 0.1mm and the value of the pressure test device is not 10N, continue to increase the displacement. When the pressure test device feedback reaches 10N, stop the displacement. After maintaining the pressure for 15s, the press will automatically unload. If the displacement does not reach 0.1mm, and the pressure test device has fed back 10N, the loading will stop, and the press will automatically unload after holding the pressure for 15s. 7) Apply glue on one side of the third stator sheet, with the glued side facing down, and place it into the stator placement seat; reset the pressure test device; repeat steps 5-6; 8) Apply glue on one side of the fourth stator sheet, with the glued side facing downward, and place it into the stator placement seat; reset the pressure test device; repeat steps 5-6; Repeat the above steps until the required number of stator sheets is reached, install the locking cover that matches the stator placement seat on the stator placement seat, and reset the pressure test device; Tighten the mounting screws on the upper cover used to connect the stator placement seat slightly, multiple times, and symmetrically, and monitor the pressure test device. Stop tightening when the pressure feedback of the pressure test device meets the specified pressure range; 9) After the stator bonding and lamination is completed, it is taken out from the stator placement seat and subjected to high temperature curing.

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