High-precision motor rotor sleeve press-fitting and riveting device

Abstract

The present invention discloses a high-precision motor rotor sleeve press-fitting and extrusion riveting device, comprising a pressure mechanism, an actuator, a sleeve pressing mechanism, an extrusion riveting mechanism and a positioning mechanism coaxially arranged on a bracket from top to bottom, the sleeve pressing mechanism and the extrusion riveting mechanism are respectively arranged relative to the upper and lower surfaces of a mounting plate in the bracket, and the mounting plate has a through hole coaxial with the axis of the sleeve pressing mechanism and the extrusion riveting mechanism, the extrusion riveting mechanism is composed of a group of extrusion riveting units evenly distributed along the circumference of the through hole, the front end of each extrusion riveting unit is a rivet head, and the rear end is a driving mechanism, the driving mechanism includes at least one driving rod vertically penetrated through the mounting plate, the pressure mechanism drives the actuator to press down each driving rod at the same time, and each driving rod drives each rivet head forward to synchronously move linearly toward the axis of the extrusion riveting unit. The present invention realizes simultaneous multi-point extrusion riveting of the sleeve, and ensures that the depth of the rivet pit is consistent, ensuring the locking force of the sleeve while improving the efficiency of extrusion riveting.

Description

Technical Field

[0001] The invention relates to the field of mechanical technology, and in particular to a high-precision motor rotor sleeve press-fitting and riveting device. Background Art

[0002] The rotor of a motor product is a component composed of multiple materials and multiple parts. The rotor carries the function of converting the motor into mechanical energy. It is the rotating part of the motor product and also the docking component with supporting equipment.

[0003] The motor rotor is composed of a sleeve, a cast aluminum rotor, and a rotor shaft. In the existing assembly, the sleeve is assembled to the motor rotor by riveting, and the sleeve riveting usually adopts a single-point riveting method. After one point is riveted, the workpiece is rotated and the next point is riveted. This cycle is repeated until 8 points are riveted. In this way, the riveting mode will mainly have the following two problems. First, the production efficiency is low. Second, the sleeve will be tilted and deformed during single-point riveting, resulting in inconsistent depth of the rotor sleeve pit, making it impossible for the sleeve to fit tightly to the surface of the cast aluminum rotor, so that the rotor shaft will move in the cast aluminum rotor, and ultimately the locking force of the rotor shaft will not meet the design requirements.

[0004] Therefore, how to solve the problem of uniform assembly of the motor rotor sleeve is an urgent problem to be solved. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a high-precision motor rotor sleeve press-fitting and riveting device.

[0006] The purpose of the present invention is achieved through the following technical solutions:

[0007] A high-precision motor rotor sleeve press-fitting and extrusion riveting device comprises a pressure mechanism, an actuator, a sleeve pressing mechanism, an extrusion riveting mechanism and a positioning mechanism which are coaxially arranged on a bracket from top to bottom in sequence, the positioning mechanism being arranged on the base of the bracket and being able to rise and fall relative to the extrusion riveting mechanism, a mounting plate being horizontally fixed in the bracket, the sleeve pressing mechanism and the extrusion riveting mechanism being respectively arranged on the upper and lower surfaces of the mounting plate relative to each other, and the mounting plate having a through hole coaxial with the axes of the sleeve pressing mechanism and the extrusion riveting mechanism, the extrusion riveting mechanism being composed of a group of extrusion riveting units uniformly distributed along the circumferential edge of the through hole, the front end of each extrusion riveting unit being a rivet head, and the rear end being a driving mechanism, the driving mechanism comprising at least one driving rod vertically penetrating the mounting plate, the pressure mechanism driving the actuator to simultaneously press down each of the driving rods, and each of the driving rods driving each of the rivet heads forward to synchronously perform linear motion toward the axis of the extrusion riveting unit.

[0008] Preferably, the extrusion riveting units are in an even number, and are symmetrically distributed in pairs relative to the axis center of the extrusion riveting mechanism.

[0009] Preferably, the driving rod consists of a rod portion and a wedge block, the upper half of the rod portion is sleeved with a return spring, the wedge block is fixed to the bottom of the rod portion, the front side surface of the wedge block is an inclined surface inclined from top to bottom, the inclined surface is rollingly connected to the rivet head, and the angle between the inclined surface and the axis of the driving rod is greater than 0° and less than 45°.

[0010] Preferably, there is a slider between the driving mechanism and the rivet head, the slider is fixedly connected to the tail end of the rivet head, and its axis is provided with a first roller, the first roller is rollingly connected to the beveled surface, and the beveled surface pushes the slider forward as the driving rod moves downward, and each rivet head has a sensor for detecting its pressure and displacement.

[0011] Preferably, the rear side surface of the wedge block is a plane, and a fixed block is provided on the rear side of the wedge block, a second roller is provided on the fixed block, and the second roller is rollingly connected to the rear side surface of the wedge block.

[0012] Preferably, at least two guide columns symmetrical relative to their axis are arranged between the mounting plate and the top of the bracket, and the actuator includes a support plate and a group of pressure rods fixed to the bottom of the support plate, the support plate is sleeved on the guide columns, and the pressure rods are coaxially arranged relative to the driving rod.

[0013] Preferably, at least one limiting rod is provided on the mounting plate, the height of the limiting rod is equivalent to the lowest height of the driving rod, and the bottom of the supporting plate has a pressure rod coaxially opposite to the limiting rod.

[0014] Preferably, the pressing sleeve mechanism includes a pressing head and a cylinder driving the pressing head downward, a pressure sensor is arranged on the top of the pressing head, a displacement sensor is arranged on one side of the pressing head, a cavity matching the motor rotor is formed inside the pressing head, and the cavity is coaxial with the through hole.

[0015] Preferably, the positioning mechanism includes a lifting cylinder, a guide rod and a positioning seat arranged on a fixed plate, the fixed plate is fixed on the base, the lifting cylinder is coaxial with the through hole, the guide rod is arranged at the corners of the lifting cylinder and passes through the fixed plate, and the positioning seat is fixed at the top of the lifting cylinder and is driven up and down by the lifting cylinder.

[0016] Preferably, the lifting cylinder has symmetrical support arms on both sides, and positioning cylinders are symmetrically arranged on both sides of the surface of the fixed plate. The driving end of the positioning cylinder has a positioning block, and the positioning surfaces of the two positioning blocks are in the same horizontal plane. When the lifting cylinder rises to the maximum distance, the support arm is set on the positioning surface.

[0017] The beneficial effects of the present invention are mainly reflected in:

[0018] 1. Set up evenly distributed riveting units around the circumference, and use the pressure mechanism to drive the actuator to press down the driving rod, so that the rivet heads of all riveting units move forward synchronously to achieve multi-point riveting of the sleeve at the same time, ensure the same pit depth of the riveting points, improve the locking force between the rotor shaft and the sleeve, and perform the operation in one go, which greatly improves the efficiency and quality of riveting;

[0019] 2. The extrusion riveting units are arranged in pairs, which can further ensure that the outer periphery of the sleeve is subjected to a consistent force, forming consistent pits, and improving the accuracy and reliability of the extrusion riveting units;

[0020] 3. The use of a vertically set driving rod can facilitate the synchronous downward pressing of the actuator, reduce the radial width of the equipment, reduce the volume of the equipment, and save horizontal space;

[0021] 4. The chamfered surface of the driving rod is a chamfered surface, so that when the driving rod moves up and down, it will generate a driving force on the first roller, thereby driving the rivet head to move forward. The rolling connection between the first roller and the chamfered surface can improve the stability and smoothness of the forward movement of the rivet head;

[0022] 5. The second roller disposed on the rear side of the driving rod can ensure contact with the driving rod while reducing the friction between the second roller and the driving rod, so as to ensure stable movement of the driving rod and avoid obstruction to the movement of the driving rod;

[0023] 6. The rivet head is equipped with pressure and displacement sensors to monitor the extrusion of the rivet head on the sleeve in real time, to detect whether the riveted sleeve is in place, and to reduce the generation of waste through the safety of equipment use;

[0024] 7. The sleeve pressing mechanism and the extrusion riveting mechanism are arranged opposite to each other and cooperate with the lifting positioning mechanism. On the one hand, it is convenient to install the electronic rotor, and on the other hand, it can make the electronic rotor extend into the through hole, so as to realize the continuous operation of sleeve pressing and extrusion riveting and improve the production efficiency.

[0025] 8. A pressure sensor and a displacement sensor are set in the sleeve pressing mechanism to monitor the pressure applied by the pressure head to the motor rotor in real time during the sleeve pressing process, so as to avoid excessive pressure from damaging the sleeve and improve the safety of use;

[0026] 9. A positioning cylinder is set at the bottom of the lifting cylinder so that the bottom of the support arm of the lifting cylinder is located on the positioning plane of the positioning cylinder to ensure that the positioning surfaces are consistent during riveting. The contact between the support arm and the positioning plane also enables the positioning seat to withstand a certain pressure, ensuring smooth riveting. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The technical solution of the present invention is further described below in conjunction with the accompanying drawings:

[0028] Figure 1 : A schematic diagram of the structure of an embodiment of the present invention;

[0029] Figure 2 : A front view of an embodiment of the present invention;

[0030] Figure 3 : A cross-sectional view of an embodiment of the present invention;

[0031] Figure 4 : Figure 3 A magnified schematic diagram of part A;

[0032] Figure 5 : A schematic diagram of an extrusion riveting mechanism in an embodiment of the present invention;

[0033] Figure 6 : A cross-sectional view of a sleeve pressing mechanism in an embodiment of the present invention;

[0034] Figure 7 : Schematic diagram of the positioning mechanism in an embodiment of the present invention. DETAILED DESCRIPTION

[0035] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0036] In the description of the scheme, it should be noted that the terms "center", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "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 description and simplified description, and do not indicate or imply 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. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Moreover, in the description of the scheme, with the operator as a reference, the direction close to the operator is the proximal end, and the direction away from the operator is the distal end.

[0037] like Figures 1 to 7As shown, the present invention discloses a high-precision motor rotor shaft sleeve press-fitting and extrusion riveting device, which is characterized by comprising a pressure mechanism 1, an actuator 2, a sleeve pressing mechanism 3, an extrusion riveting mechanism 4 and a positioning mechanism 5 coaxially arranged on a bracket 7 from top to bottom, the positioning mechanism 5 is arranged on a base 701 of the bracket 7 and can be lifted up and down relative to the extrusion riveting mechanism 4, a mounting plate 702 is horizontally fixed in the bracket 7, the sleeve pressing mechanism 3 and the extrusion riveting mechanism 4 are respectively arranged on the upper and lower surfaces of the mounting plate 702, and the mounting plate 702 has a The through hole 703 with coaxial axes of the sleeve pressing mechanism 3 and the extrusion riveting mechanism 4, the extrusion riveting mechanism 4 is composed of a group of extrusion riveting units evenly distributed along the circumference of the through hole 703, the front end of each extrusion riveting unit is a rivet head 401, and the rear end is a driving mechanism, the driving mechanism at least includes a driving rod 402 vertically penetrated through the mounting plate 702, the pressure mechanism 1 drives the actuator 2 to press down each driving rod 402 at the same time, and each driving rod 402 drives each rivet head 401 forward to synchronously move linearly toward the axis of the extrusion riveting unit.

[0038] In order to further ensure that the sleeve 8 is subjected to a stable force, the number of the extrusion riveting units is preferably an even number, and the two are symmetrically distributed relative to the axis center of the extrusion riveting mechanism 4. Such a structure can further ensure that the outer periphery of the sleeve 8 is subjected to a consistent force, forming a consistent pit, and improving the accuracy and reliability of the extrusion riveting unit. Figure 5 In the best embodiment shown, the number of the extrusion riveting units is 8. In other feasible embodiments, the number of the extrusion riveting units can be any other suitable number.

[0039] like Figure 3 , Figure 4 As shown, the driving rod 402 is composed of a rod portion 4022 and a wedge block 4023, the upper half of the rod portion 4022 is sleeved with a return spring 4024, the wedge block 4023 is fixedly arranged at the bottom of the rod portion 4022, the front side of the wedge block 4023 is a chamfered surface 4021 inclined from top to bottom, the chamfered surface 4021 is rollingly connected with the rivet head 401, and the angle between the chamfered surface 4021 and the axis of the driving rod 402 is greater than 0° and less than 45°, so that the chamfered surface 4021 produces a force-increasing effect on the first roller 404 when following the movement of the driving rod 402. In a preferred embodiment, the angle between the chamfered surface 4021 and the axis of the driving rod 402 is preferably 30°. In other feasible embodiments, the driving rod 402 can also be directly composed of a rod-shaped member having a chamfered surface of 0° to 45°.

[0040] A slider 403 is provided between the driving mechanism and the rivet head 401. The slider 403 is fixedly connected to the tail end of the rivet head 401, and a first roller 404 is provided on its axis. The first roller 404 is rollingly connected to the chamfered surface 4021. The chamfered surface 4021 pushes the slider 403 forward as the driving rod 402 moves downward. Such a structure can improve the stability of the forward movement of the rivet head 401, and the rolling connection between the chamfered surface 4021 and the first roller 404 can reduce the friction between the chamfered surface 4021 and the slider 403, reduce the resistance received by the chamfered surface 4021, and improve the smoothness of pushing the slider 403 forward.

[0041] In order to monitor the operation of the rivet head 401 in real time, each rivet head 401 has a sensor 407 for detecting its pressure and displacement, so as to improve the control accuracy of the rivet head 401, ensure that it is riveted as required, and avoid the rivet head 401 from being over-riveted and causing waste.

[0042] In order to ensure that the driving rod 402 is reset in time after being pressed down, a reset spring 4024 is sleeved on the upper half of the rod portion 4022 .

[0043] like Figure 4 As shown, the rear side of the wedge block 4023 is a plane, and a fixing block 405 is disposed on the rear side of the wedge block 4023. The fixing block 405 is provided with a second roller 406, and the second roller 406 is rollingly connected to the rear side of the wedge block 4023. Such a structure can ensure that the second roller 406 abuts against the driving rod 402 while reducing the friction between the second roller 406 and the driving rod 402, so that the stable movement of the driving rod 402 can be ensured and the movement of the driving rod 402 can be avoided.

[0044] At least two guide posts 704 are arranged between the mounting plate 702 and the top of the bracket 7, which are symmetrical with respect to the axis thereof. The actuator 2 comprises a support plate 201 and a group of pressure rods 202 fixed to the bottom of the support plate 201. The support plate 201 is sleeved on the guide posts 704, and the pressure rods 202 are arranged coaxially opposite to the driving rod 402. In order to improve the stability of the support plate 201 in moving up and down, a guide post 704 is arranged at each of the four corners of the mounting plate 702.

[0045] In order to avoid excessive downward pressure of the actuator 2, at least one limit rod 705 is provided on the mounting plate 702, the height of the limit rod 705 is equivalent to the lowest height of the driving rod 402, and the bottom of the support plate 201 has a pressure rod 202 coaxially opposite to the limit rod 705. In a preferred embodiment, one limit rod 705 is provided between each of the driving rods 402, and the bottom of the support plate 201 has a pressure rod 202 corresponding to the limit rod 705 one by one. Its working principle is: when the actuator 2 is pressed down, a part of the pressure rod 202 first abuts against the driving rod 402 and presses down the driving rod 402, and after a certain distance, another part of the pressure rod 202 abuts against the limit rod 705, and the actuator 2 stops pressing down.

[0046] The pressure mechanism 1 in this preferred embodiment is a servo press. In other feasible embodiments, the pressure mechanism 1 may also use other feasible power mechanisms, such as a motor.

[0047] like Figure 6 As shown, the sleeve pressing mechanism 3 includes a pressing head 301 and a cylinder 302 for driving the pressing head 301 to press down, a pressure sensor 303 is arranged on the top of the pressing head 301, and a displacement sensor 304 is arranged on one side of the pressing head 301. A cavity matching the motor rotor 6 is formed inside the pressing head 301, and the cavity is coaxial with the through hole 703. The arrangement of the pressure sensor 303 and the displacement sensor 304 can monitor the pressure applied by the pressing head 301 to the motor rotor 6 in real time, and prevent the pressing head 301 from applying excessive pressure to damage the motor rotor 6.

[0048] like Figure 1 , Figure 2 , Figure 3 and Figure 7 As shown, the positioning mechanism 5 includes a lifting cylinder 502, a guide rod 503 and a positioning seat 504 arranged on a fixed plate 501, the fixed plate 501 is fixed on the base 701, the lifting cylinder 502 is coaxial with the through hole 703, the guide rod 503 is arranged at the corner of the lifting cylinder 502 and passes through the fixed plate 501, and the positioning seat 504 is fixed at the top of the lifting cylinder 502 and driven by the lifting cylinder 502 to move up and down. The inner cavity of the positioning seat 504 matches the bottom of the motor rotor 6, so that the bottom of the motor rotor 6 can be clamped in the positioning seat 504, and the top of the motor rotor 6 is lifted into the through hole 703 by the lifting cylinder 502. The guide rods 503 on both sides of the lifting cylinder 502 can improve the stability of the lifting cylinder 502 and prevent it from shaking or tilting.

[0049] Furthermore, the lifting cylinder 502 has symmetrical support arms 5021 on both sides, and positioning cylinders 505 are symmetrically arranged on both sides of the surface of the fixing plate 501. The driving end of the positioning cylinder 505 has a positioning block 506, and the positioning surfaces 5061 of the two positioning blocks 506 are in the same horizontal plane. When the lifting cylinder 502 rises to the maximum distance, the support arm 5021 is arranged on the positioning surface 5061. The support arm 5021 provides strong support for the positioning seat 504, and the positioning surface 5061 can ensure that the positioning seat 504 is in a horizontal state, so that the positioning surfaces are consistent during extrusion riveting, and can withstand the pressure during extrusion riveting or sleeve pressing, and can ensure that the shaft sleeve 8 is in a horizontal state, so that the pits after extrusion riveting are in the same horizontal line, so as to improve the experience of the rotor shaft.

[0050] The working process of the present invention is:

[0051] First, the motor rotor 6 and the shaft sleeve to be processed are placed on the positioning seat 504, and the bottom of the motor rotor 6 is clamped in the positioning seat 504;

[0052] Then, the lifting cylinder 502 lifts the positioning seat 504 upward, so that the positioning cylinder 505 extends forward, so that the positioning block 506 is located below the support arm 5021;

[0053] Next, the lifting cylinder 502 descends so that the support arm 5021 is placed on the positioning surface 5061 of the positioning block 506, and at this time, the top of the motor rotor 6 is located in the through hole 703;

[0054] Next, the pressing head 301 of the sleeve pressing mechanism 3 is driven downward by the oil cylinder 302, and the pressing head 301 presses the sleeve 8 onto the motor rotor 6;

[0055] Then, the pressure mechanism 1 presses down the actuator 2, so that the pressure rod 202 presses down each driving rod 402, so that the wedge block 4023 at the bottom of each driving rod 402 pushes each rivet head 401 forward to achieve synchronous extrusion riveting of the shaft sleeve 8.

[0056] The present invention provides rivet units evenly distributed around a circumference, and drives the actuator 2 to press down the drive rod 402 through the pressure mechanism 1, so that the rivet heads 401 of all the rivet units move forward synchronously to achieve simultaneous multi-point rivet riveting of the shaft sleeve 8, so as to ensure that the pit depths of the rivet points are consistent, thereby improving the locking force between the rotor shaft and the shaft sleeve, and performing the operation in one go, thereby greatly improving the efficiency and quality of rivet riveting, and having great practical value.

[0057] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0058] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. High-precision motor rotor sleeve press-fitting and riveting device, characterized by: The invention comprises a pressure mechanism (1), an actuator (2), a sleeve pressing mechanism (3), a riveting mechanism (4) and a positioning mechanism (5) which are coaxially arranged on a bracket (7) from top to bottom. The actuator (2) comprises a support plate (201) and a group of pressure rods (202) fixedly arranged at the bottom of the support plate (201); the sleeve pressing mechanism (3) comprises a pressure head (301) and an oil cylinder (302) for driving the pressure head (301) to press downward; the positioning mechanism (5) comprises a lifting cylinder (502), a guide rod (503) and a positioning seat (504) arranged on a fixing plate (501); the positioning mechanism (5) is arranged on a base (701) of the bracket (7) and can be raised and lowered relative to the riveting mechanism (4); a mounting plate (702) is fixedly arranged horizontally in the bracket (7); The sleeve pressing mechanism (3) and the extrusion riveting mechanism (4) are respectively arranged on the upper and lower surfaces of the mounting plate (702) in a relative manner, and the mounting plate (702) has a through hole (703) coaxial with the axes of the sleeve pressing mechanism (3) and the extrusion riveting mechanism (4). The extrusion riveting mechanism (4) is composed of a group of extrusion riveting units evenly distributed along the circumference of the through hole (703). The front end of each extrusion riveting unit is a rivet head (401), and the rear end is a driving mechanism. The driving mechanism at least includes a driving rod (402) vertically penetrated through the mounting plate (702). The pressure mechanism (1) drives the actuator (2) to simultaneously press down each driving rod (402), and each driving rod (402) drives each rivet head (401) forward to synchronously move linearly toward the axis of the extrusion riveting unit.

2. The high-precision motor rotor sleeve press-fitting and riveting device according to claim 1 is characterized in that: The extrusion riveting units are in an even number and are symmetrically distributed in pairs relative to the axis center of the extrusion riveting mechanism (4).

3. The high-precision motor rotor sleeve press-fitting and riveting device according to claim 2 is characterized in that: The driving rod (402) is composed of a rod portion (4022) and a wedge block (4023); a return spring (4024) is sleeved on the upper half of the rod portion (4022); the wedge block (4023) is fixedly arranged at the bottom of the rod portion (4022); the front side surface of the wedge block (4023) is a chamfered surface (4021) inclined from top to bottom; the chamfered surface (4021) is rollingly connected to the rivet head (401); and the angle between the chamfered surface (4021) and the axis of the driving rod (402) is greater than 0° and less than 45°.

4. The high-precision motor rotor sleeve press-fitting and riveting device according to claim 3 is characterized in that: A slider (403) is provided between the driving mechanism and the rivet head (401); the slider (403) is fixedly connected to the rear end of the rivet head (401), and a first roller (404) is provided on its shaft; the first roller (404) is rollingly connected to the chamfered surface (4021); the chamfered surface (4021) pushes the slider (403) forward as the driving rod (402) moves downward; and each rivet head (401) has a sensor (407) for detecting its pressure and displacement.

5. The high-precision motor rotor sleeve press-fitting and riveting device according to claim 4 is characterized in that: The rear side surface of the wedge-shaped block (4023) is a plane, and a fixing block (405) is provided on the rear side of the wedge-shaped block (4023). A second roller (406) is provided on the fixing block (405), and the second roller (406) is rollingly connected to the rear side surface of the wedge-shaped block (4023).

6. The high-precision motor rotor sleeve press-fitting and riveting device according to claim 1 is characterized in that: At least two guide columns (704) are arranged between the mounting plate (702) and the top of the bracket (7) and are symmetrical relative to their axis. The support plate (201) is sleeved on the guide columns (704), and the pressure rod (202) and the driving rod (402) are arranged coaxially and oppositely.

7. The high-precision motor rotor sleeve press-fitting and riveting device according to claim 6 is characterized in that: At least one limiting rod (705) is provided on the mounting plate (702), the height of the limiting rod (705) being equivalent to the lowest height of the driving rod (402), and the bottom of the supporting plate (201) is provided with a pressing rod (202) coaxially opposite to the limiting rod (705).

8. The high-precision motor rotor sleeve press-fitting and riveting device according to claim 1 is characterized in that: A pressure sensor (303) is arranged on the top of the pressure head (301), a displacement sensor (304) is arranged on one side of the pressure head (301), and a cavity matching the motor rotor (6) is formed inside the pressure head (301), and the cavity is coaxial with the through hole (703).

9. The high-precision motor rotor sleeve press-fitting and riveting device according to claim 1 is characterized in that: The fixing plate (501) is fixed on the base (701), the lifting cylinder (502) is coaxial with the through hole (703), the guide rod (503) is arranged at the corner of the lifting cylinder (502) and passes through the fixing plate (501), and the positioning seat (504) is fixed on the top of the lifting cylinder (502) and is driven by the lifting cylinder (502) to move up and down.

10. The high-precision motor rotor sleeve press-fitting and riveting device according to claim 6, characterized in that: The lifting cylinder (502) has symmetrical support arms (5021) on both sides, and positioning cylinders (505) are symmetrically arranged on both sides of the surface of the fixing plate (501). The driving end of the positioning cylinder (505) has a positioning block (506), and the positioning surfaces (5061) of the two positioning blocks (506) are in the same horizontal plane. When the lifting cylinder (502) rises to the maximum distance, the support arm (5021) is arranged on the positioning surface (5061).

Images