Method and tool for press fitting an electric machine rotor

Abstract

The application relates to the technical field of rotor pressing technology, and discloses a motor rotor pressing method and tool.The application comprises a base provided with a pressing mechanism and a feeding mechanism; the pressing mechanism is used for accurately pressing bearings into corresponding motor rotors in the same horizontal plane; the feeding mechanism is used for conveying the motor rotors into rotor grooves one by one through rotation to realize automatic feeding; the pressing mechanism comprises a pressing assembly, multiple adjusting assemblies and a material placing assembly; the pressing assembly comprises two supporting plates, a first rotating disc, multiple rotor grooves, a motor rotor, a rotor shaft, a circular cavity, a first threaded rod, two internally-threaded circular sliders, a motor groove and a driving motor. The application is operated synchronously, is simple to operate, can adjust the rotor grooves according to motor rotors of different specifications, has high applicability, realizes automatic operation, and effectively improves work efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rotor press-fitting, in particular to a method and tool for press-fitting of a motor rotor. BACKGROUND

[0002] At present, motor assembly has a very important influence on the final production quality of the motor, and the assembly of the motor rotor and the bearing is also very important. The traditional bearing press-fitting device mainly adopts a clamping mechanism to clamp the bearing, and then a hydraulic mechanism is used to directly press the bearing into the rotor shaft. Although the bearing press-fitting can be completed, the bearing is manually aligned during press-fitting, and then a tool is used to directly knock to complete the press-fitting. Such a press-fitting method causes great damage to the parts, which leads to low assembly quality of the motor as a whole and greatly reduces the efficiency of press-fitting. SUMMARY

[0003] To solve the above technical problems, the present application provides a method and tool for press-fitting of a motor rotor.

[0004] The present application adopts the following technical solution: a method and tool for press-fitting of a motor rotor, comprising a base, a press-fitting mechanism and a feeding mechanism are arranged on the base;

[0005] The press-fitting mechanism is used to ensure that the bearing is accurately press-fitted into the corresponding motor rotor in the same horizontal plane;

[0006] The feeding mechanism transmits the motor rotors one by one into the rotor grooves through rotation to complete the automatic feeding function;

[0007] The press-fitting mechanism comprises a press-fitting assembly, a plurality of adjusting assemblies and a material placing assembly. The press-fitting assembly comprises two supporting plates, a first rotating disc, a plurality of rotor grooves, a motor rotor, a rotor shaft, a circular cavity, a first threaded rod, two internally threaded circular sliders, a motor groove and a driving motor. The two supporting plates are fixedly installed on the top of the base. The first rotating disc is arranged above the base. The plurality of rotor grooves are formed on the first rotating disc. The motor rotor is arranged in the corresponding rotor groove. The rotor shaft is fixedly installed on the motor rotor. The circular cavity is formed on the first rotating disc. The first threaded rod is rotatably installed in the circular cavity. The two internally threaded circular sliders are threadedly sleeved on the first threaded rod. The motor groove is formed on the inner wall of the circular cavity. The driving motor is fixedly installed on the inner wall of the motor groove. The output shaft of the driving motor is fixedly connected with one end of the first threaded rod.

[0008] Through the above technical solution, the arrangement of the press-fitting assembly can effectively drive the motor rotor to rotate, avoiding the shaking of the motor rotor during rotation, which affects the position of the center.

[0009] The adjusting assembly comprises two first supporting rods, a mounting plate, a plurality of first through grooves, a plurality of connecting rods and a plurality of second supporting rods, the two first supporting rods are hingedly mounted on the inner threaded round slider, the mounting plate is slidingly mounted in the round cavity, the top ends of the two first supporting rods are hingedly connected with the mounting plate, the plurality of first through grooves are symmetrically formed on the inner wall of the round cavity, the plurality of connecting rods are symmetrically hingedly mounted on the top of the mounting plate, the plurality of second supporting rods are hingedly mounted on the plurality of connecting rods, and the top ends of the plurality of second supporting rods extend into the first through grooves and are matched with the plurality of first through grooves respectively.

[0010] Through the above technical scheme, the adjusting assembly is arranged, so that the size of the rotor slot can be adjusted according to the size of the motor rotor, and the applicability of the device is improved.

[0011] The material placing assembly comprises a first rotating shaft, two second rotating discs, a plurality of circular through grooves and bearings, the first rotating shaft is rotatably mounted on the two supporting plates, the two second rotating discs are fixedly sleeved on the first rotating shaft, the plurality of circular through grooves are uniformly formed on the two second rotating discs respectively, and the bearings are arranged in the corresponding circular through grooves and matched with the circular through grooves.

[0012] Through the above technical scheme, the material placing assembly is arranged, so that the bearings can be stably placed in the circular through grooves at one time, and the work efficiency is improved.

[0013] As a further improvement of the above scheme, the feeding mechanism comprises a feeding assembly and a driving assembly, the feeding assembly comprises a rectangular block, two connecting blocks, a second through groove, a circular sliding groove, a fixed circular rod, a rectangular positioning block, a U-shaped frame, a baffle and a limiting rod, the rectangular block is arranged above the first rotating disc, the two connecting blocks are fixedly mounted on the outer walls of the mutually remote sides of the rectangular block respectively, the mutually remote sides of the two connecting blocks are fixedly connected with the two supporting plates respectively, the second through groove is formed in the rectangular block, the circular sliding groove is formed in the outer wall of the rectangular block, the fixed circular rod is fixedly mounted on the two supporting plates, the rectangular positioning block is rotatably sleeved on the fixed circular rod, the U-shaped frame is fixedly mounted on the bottom of the rectangular positioning block, the baffle is fixedly mounted on the bottom of the U-shaped frame, and the limiting rod is fixedly mounted on the inner wall of the U-shaped frame, one end of the limiting rod extends into the second through groove and is slidingly connected with the circular sliding groove.

[0014] Through the above technical scheme, the feeding assembly is arranged, so that the motor rotors can be uniformly arranged, and automatic press fitting can be realized in the working process.

[0015] As a further improvement of the above scheme, the driving assembly comprises two second rotating shafts, a third rotating shaft, a cam, a first belt pulley, a second belt pulley, a synchronous belt, a rotary motor and a hydraulic cylinder, the two second rotating shafts are rotatably installed on the two support plates respectively, the two second rotating shafts are fixedly connected with the first rotating disc at the ends close to each other, the third rotating shaft is rotatably installed on the two support plates, the cam is fixedly sleeved on the third rotating shaft, the two first belt pulleys are fixedly sleeved on the first rotating shaft and the second rotating shaft respectively, the two second belt pulleys are fixedly sleeved on the first rotating shaft and the third rotating shaft respectively, the two synchronous belts are wound on the two first belt pulleys and the two second belt pulleys respectively, the rotary motor is fixedly installed on the side outer wall of the corresponding support plate, the output shaft of the rotary motor is fixedly connected with one end of the second rotating shaft, and the two hydraulic cylinders are fixedly installed on the sides close to each other of the two support plates.

[0016] Through the above technical scheme, the driving assembly is provided, so that the whole device can be driven to run by the rotary motor, and the device is simple and convenient to operate.

[0017] As a further improvement of the above scheme, the top of the base is fixedly installed with a collecting box, the bottom inner wall of the collecting box is inclined, and a buffer pad is arranged on the bottom inner wall of the collecting box.

[0018] Through the above technical scheme, the collecting box and the buffer pad are arranged, so that the pressed motor rotor can be effectively collected.

[0019] As a further improvement of the above scheme, an arc-shaped block is arranged below the first rotating disc, two connecting plates are fixedly installed on the sides close to each other of the two support plates, the two connecting plates are fixedly connected with the arc-shaped block, and a discharging groove is formed in the bottom of the arc-shaped block.

[0020] Through the above technical scheme, the arc-shaped block and the discharging groove are arranged, so that the motor rotor can be limited.

[0021] As a further improvement of the above scheme, a slide rod is fixedly installed in the circular cavity, and the slide rod penetrates through and is in sliding connection with the two internal thread circular sliders respectively.

[0022] Through the above technical scheme, the slide rod is arranged, so that the direction of movement of the two internal thread circular sliders can be effectively controlled.

[0023] As a further improvement of the above scheme, a plurality of limiting rings are fixedly installed in the plurality of circular through grooves, the plurality of limiting rings are adapted to the two hydraulic cylinders respectively, an electromagnet is fixedly installed on the output shaft of each of the two hydraulic cylinders, a plurality of sliding grooves are formed in the circular cavity, and the plurality of mounting plates are adapted to the plurality of sliding grooves respectively.

[0024] Through the technical scheme, the limiting ring is arranged to avoid the bearing from sliding off in the rotating process, effective limiting is performed, the electromagnet is arranged to effectively adsorb the bearing, the installation plate is prevented from deviating in the lifting process, and the sliding groove is arranged.

[0025] In addition, the application also provides a motor rotor pressing method.

[0026] Please refer to Figures 1 to 7 The motor rotor pressing method comprises the following steps:

[0027] S1: the corresponding motor rotor is placed in the rectangular block, and the bearing is placed in the circular through groove to prepare;

[0028] S2: the rotating motor is started, and the rotating motor drives the whole device to rotate and operate;

[0029] S3: the motor rotor falling from the rectangular block to the first rotating disc rotates to the same horizontal plane with the bearing on the corresponding second rotating disc, at this time, the hydraulic cylinder is started, and the hydraulic cylinder pushes the bearing on the second rotating disc to press and fit on the corresponding first rotating disc;

[0030] S4: the motor rotor pressed and fitted rotates to the corresponding position and falls into the collecting box, and is uniformly collected with the collecting box;

[0031] S5: after the bearing is pressed and fitted, the operation can be stopped, and the motor rotor and the bearing can be replenished.

[0032] Compared with the prior art, the application has the beneficial effects that:

[0033] The application can adjust the rotor groove according to different specifications of the motor rotor, has strong applicability, realizes automatic operation, and effectively improves the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is a whole structure schematic view of the motor rotor pressing method and tool of the application;

[0035] Figure 2 It is a front view sectional structure schematic view of the motor rotor pressing method and tool of the application;

[0036] Figure 3 It is a front view sectional structure schematic view of the adjusting assembly in the application;

[0037] Figure 4 It is a side view sectional structure schematic view of the adjusting assembly in the application;

[0038] Figure 5The side view structure schematic diagram of the motor rotor press-fitting method and tool of the present application;

[0039] Figure 6 The structure schematic diagram of the press-fitting assembly in the present application;

[0040] Figure 7 The structure schematic diagram of the material placing assembly in the present application.

[0041] Main symbol explanation:

[0042] 1, base; 2, support plate; 3, first rotating disc; 4, rotor slot; 5, motor rotor; 6, rotor shaft; 7, circular cavity; 8, first threaded rod; 9, internally threaded circular slider; 10, first support rod; 11, mounting plate; 12, first through slot; 13, connecting rod; 14, second support rod; 15, motor slot; 16, driving motor; 17, arc block; 18, connecting plate; 19, material discharging slot; 20, first rotating shaft; 21, second rotating disc; 22, circular through slot; 23, bearing; 24, rectangular block; 25, connecting block; 26, second through slot; 27, circular sliding slot; 28, fixed circular rod; 29, rectangular positioning block; 30, U-shaped frame; 31, baffle; 32, limiting rod; 33, second rotating shaft; 35, third rotating shaft; 36, cam; 37, first pulley; 371, second pulley; 38, synchronous belt; 39, rotating motor; 40, hydraulic cylinder; 41, collection box. DETAILED DESCRIPTION

[0043] In the following, the present application is further described in combination with the drawings and specific embodiments.

[0044] In combination Figures 1 to 7 , the motor rotor press-fitting tool of the present application comprises a base 1, and the base 1 is provided with a press-fitting mechanism and a material discharging mechanism;

[0045] The press-fitting mechanism is used for ensuring that the bearing 23 is accurately press-fitted into the corresponding motor rotor 5 in the same horizontal plane;

[0046] The material discharging mechanism is used for transmitting the motor rotor 5 into the rotor slot 4 one by one through rotation, thereby realizing automatic feeding function;

[0047] The pressing mechanism comprises a pressing assembly, a plurality of adjusting assemblies and a material placing assembly. The pressing assembly comprises two support plates 2, a first rotating disc 3, a plurality of rotor grooves 4, a motor rotor 5, a rotor shaft 6, a circular cavity 7, a first threaded rod 8, two internally-threaded circular sliders 9, a motor groove 15 and a driving motor 16. The two support plates 2 are fixedly installed on the top of the base 1. The first rotating disc 3 is arranged above the base 1. The plurality of rotor grooves 4 are formed in the first rotating disc 3. The motor rotor 5 is arranged in the corresponding rotor groove 4. The rotor shaft 6 is fixedly installed on the motor rotor 5. The circular cavity 7 is formed in the first rotating disc 3. The first threaded rod 8 is rotatably installed in the circular cavity 7. The two internally-threaded circular sliders 9 are threadedly sleeved on the first threaded rod 8. The motor groove 15 is formed in the inner wall of the circular cavity 7. The driving motor 16 is fixedly installed on the side inner wall of the motor groove 15. The output shaft of the driving motor 16 is fixedly connected with one end of the first threaded rod 8.

[0048] Through the above technical scheme, the setting of the pressing assembly can effectively drive the motor rotor 5 to rotate, avoid the motor rotor 5 from shaking during rotation, affect the position of the center, and cause the motor rotor 5 and the bearing 23 not to be on the same horizontal line after rotation.

[0049] The adjusting assembly comprises two first support rods 10, a mounting plate 11, a plurality of first through grooves 12, a plurality of connecting rods 13 and a plurality of second support rods 14. The two first support rods 10 are hingedly installed on the internally-threaded circular slider 9. The mounting plate 11 is slidably installed in the circular cavity 7. The top ends of the two first support rods 10 are hingedly connected with the mounting plate 11. The plurality of first through grooves 12 are symmetrically formed in the inner wall of the circular cavity 7. The plurality of connecting rods 13 are symmetrically hingedly installed on the top of the mounting plate 11. The plurality of second support rods 14 are hingedly installed on the plurality of connecting rods 13. The top ends of the plurality of second support rods 14 extend into the first through grooves 12 and are matched with the plurality of first through grooves 12.

[0050] Through the above technical scheme, the setting of the adjusting assembly can adjust the rotor groove 4 according to the size of the motor rotor 5, save the cost of the device, and improve the applicability of the device.

[0051] The material placing assembly comprises a first rotating shaft 20, a second rotating disc 21, a plurality of circular through grooves 22 and a bearing 23. The first rotating shaft 20 is rotatably installed on the two support plates 2. The two second rotating discs 21 are fixedly sleeved on the first rotating shaft 20. The plurality of circular through grooves 22 are evenly formed in the two second rotating discs 21. The bearing 23 is arranged in the corresponding circular through groove 22. The plurality of circular through grooves 22 are matched with the bearing 23.

[0052] Through the technical scheme, the material placing assembly is arranged, so that enough bearings 23 can be prepared in advance, automatic pressing is facilitated during the operation of the device, and the working efficiency is improved.

[0053] The discharging mechanism comprises a feeding assembly and a driving assembly. The feeding assembly comprises a rectangular block 24, two connecting blocks 25, a second through groove 26, a circular chute 27, a fixed circular rod 28, a rectangular positioning block 29, an L-shaped frame 30, a baffle 31 and a limiting rod 32. The rectangular block 24 is arranged above the first rotating disc 3. The two connecting blocks 25 are fixedly installed on the outer walls of the mutually distant sides of the rectangular block 24, respectively. The mutually distant sides of the two connecting blocks 25 are fixedly connected with the two support plates 2, respectively. The second through groove 26 is arranged on the rectangular block 24. The circular chute 27 is arranged on the outer wall of one side of the rectangular block 24. The fixed circular rod 28 is fixedly installed on the two support plates 2. The rectangular positioning block 29 is rotatably sleeved on the fixed circular rod 28. The L-shaped frame 30 is fixedly installed on the bottom of the rectangular positioning block 29. The baffle 31 is fixedly installed on the bottom of the L-shaped frame 30. The limiting rod 32 is fixedly installed on the inner wall of the L-shaped frame 30. One end of the limiting rod 32 extends into the second through groove 26 and is in sliding connection with the circular chute 27.

[0054] Through the technical scheme, the feeding assembly is arranged, so that the motor rotor 5 can be put into the corresponding rotor slot 4 one by one under the action of the baffle 31 and the limiting rod 32, thereby improving the working efficiency.

[0055] The driving assembly comprises two second rotating shafts 33, a third rotating shaft 35, a cam 36, two first pulleys 37, two second pulleys 371, two synchronous belts 38, a rotating motor 39 and two hydraulic cylinders 40. The two second rotating shafts 33 are rotatably installed on the two support plates 2, respectively. The mutually close ends of the two second rotating shafts 33 are fixedly connected with the first rotating disc 3. The third rotating shaft 35 is rotatably installed on the two support plates 2. The cam 36 is fixedly sleeved on the third rotating shaft 35. The two first pulleys 37 are fixedly sleeved on the first rotating shaft 20 and the second rotating shaft 33, respectively. The two second pulleys 371 are fixedly sleeved on the first rotating shaft 20 and the third rotating shaft 35, respectively. The two synchronous belts 38 are wound around the two first pulleys 37 and the two second pulleys 371, respectively. The rotating motor 39 is fixedly installed on the outer wall of the corresponding support plate 2. The output shaft of the rotating motor 39 is fixedly connected with one end of the second rotating shaft 33. The two hydraulic cylinders 40 are fixedly installed on the mutually close sides of the two support plates 2.

[0056] Through the technical scheme, the driving assembly is arranged, so that the entire device can be driven to operate by the rotating motor 39, and the device is simple and convenient to operate.

[0057] The top of the base 1 is fixedly provided with a collecting box 41, the bottom inner wall of the collecting box 41 is inclined, and a buffer pad is arranged on the bottom inner wall of the collecting box 41.

[0058] Through the above technical scheme, the collecting box 41 and the buffer pad are arranged, so that the motor rotor 5 can be effectively collected and stored, and damage of the motor rotor 5 in the falling process is avoided, and the machining effect is affected.

[0059] The first rotating disc 3 is provided below with an arc-shaped block 17, two connecting plates 18 are fixedly arranged on the sides of the two support plates 2 close to each other, the two connecting plates 18 are fixedly connected with the arc-shaped block 17, and a discharging groove 19 is arranged at the bottom of the arc-shaped block 17.

[0060] Through the above technical scheme, the arc-shaped block 17 and the discharging groove 19 are arranged, so that the motor rotor 5 can rotate with the first rotating disc 3, and when the motor rotor 5 rotates to the position of the discharging groove 19, the motor rotor 5 can automatically fall into the collecting box 41.

[0061] The circular cavity 7 is fixedly provided with a sliding rod, the sliding rod penetrates through the two internal thread circular sliding blocks 9 and is in sliding connection with the two internal thread circular sliding blocks 9.

[0062] Through the above technical scheme, the sliding rod is arranged, the two internal thread circular sliding blocks 9 slide on the sliding rod, so that the moving direction is controlled, and the two internal thread circular sliding blocks 9 can move more stably.

[0063] A plurality of limiting rings are fixedly arranged in the plurality of circular through grooves 22, the plurality of limiting rings are matched with the two hydraulic cylinders 40 respectively, electromagnets are fixedly arranged on the output shafts of the two hydraulic cylinders 40, a plurality of sliding grooves are arranged in the circular cavity 7, and the plurality of mounting plates 11 are matched with the plurality of sliding grooves respectively.

[0064] Through the above technical scheme, the bearing 23 cannot easily fall during placement, the electromagnet can firmly adsorb the bearing 23, placement on the same horizontal plane is ensured, and the sliding groove can ensure that the mounting plate 11 moves more stably.

[0065] In addition, the application also provides a motor rotor press fitting method.

[0066] Please refer to Figures 1 to 7 The motor rotor press fitting method comprises the following steps:

[0067] S1: The corresponding motor rotor 5 is placed in the rectangular block 24, and the bearing 23 is placed in the circular through groove 22 to complete the preparation work;

[0068] S2: The rotating motor 39 is started, and the rotating motor 39 drives the whole device to rotate and operate;

[0069] S3: motor rotor 5 falls from rectangular block 24 to first rotating disc 3, rotates to the same horizontal plane with bearing 23 on corresponding second rotating disc 21, at this time start hydraulic cylinder 40, hydraulic cylinder 40 pushes bearing 23 on second rotating disc 21 to press-fit on corresponding first rotating disc 3;

[0070] S4: motor rotor 5 pressed and rotated to the corresponding position falls into collection box 41, and rolls down with collection box 41 for unified collection;

[0071] S5: after bearing 23 is pressed, stop running, and then replenish motor rotor 5 and bearing 23.

[0072] The implementation principle of the motor rotor pressing method and tool in the embodiment of the application is as follows:

[0073] First step: in the preparation stage, a plurality of motor rotors 5 are placed in the corresponding second through slot 26 on the rectangular block 24, and a plurality of bearings 23 are placed in the corresponding circular through slot 22 on the two second rotating discs 21;

[0074] Second step: start rotating motor 39, rotating motor 39 drives second rotating shaft 33 to rotate, second rotating shaft 33 drives first rotating disc 3 to rotate, first rotating disc 3 drives third rotating shaft 35 to rotate, under the action of first pulley 37 and second pulley 371, third rotating shaft 35 drives first rotating shaft 20 and third rotating shaft 35 to rotate at the same time, third rotating shaft 35 drives cam 36 to rotate, cam 36 collides with U-shaped frame 30, U-shaped frame 30 drives rectangular positioning block 29 to rotate on fixed circular rod 28, at this time U-shaped frame 30 drives limiting rod 32 and baffle 31 to move at the same time, when baffle 31 moves, motor rotor 5 in rectangular block 24 falls into rotor groove 4, first rotating disc 3 drives corresponding rotor groove 4 to rotate to the horizontal intersection line of two circular through slots 22, start two collection boxes 41, and connect the power supply to electromagnet, two collection boxes 41 push two bearings 23 at the same time, when collection box 41 contacts bearing 23, bearing 23 is tightly adsorbed and fixed, to ensure that the center of bearing 23 and the center of rotor shaft 6 are on the same horizontal line, two collection boxes 41 push two bearings 23 to press-fit on motor rotor 5, turn off the electromagnet, restore the state of collection box 41, continue to rotate for the next pressing work, rotor groove 4 rotates in the process due to the limiting of arc-shaped block 17, so that motor rotor 5 tightly follows rotor groove 4 to rotate, when corresponding rotor groove 4 rotates to the corresponding position, motor rotor 5 falls from feeding groove 19 to collection box 41 for unified collection;

[0075] Third step: if the size of the motor rotor 5 is small, start the driving motor 16, the driving motor 16 drives the first threaded rod 8 to rotate, the first threaded rod 8 drives the two internally threaded circular slides 9 to move close to each other, the two internally threaded circular slides 9 drive the two first support rods 10 to move close to each other, thereby lifting the position of the mounting plate 11, the mounting plate 11 drives the connecting rod 13 to move, the connecting rod 13 drives the second support rod 14 to lift and extend to the outside of the first through slot 12, a plurality of first through slots 12 are at an angle, thereby adjusting the motor rotor 5 of different specifications to meet the actual needs.

[0076] The above embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-essential changes and substitutions made by those skilled in the art on the basis of the present application shall fall within the scope of protection of the present application.

Claims

1. A press fitting tool for an electric machine rotor, characterized by, The utility model relates to a bearing automatic pressure equipment, including: The base is provided with pressure equipment and material releasing mechanism on it; The pressure equipment is used to ensure that the bearing is accurately pressure -fitted into the corresponding motor rotor in the same horizontal plane; The material releasing mechanism is used to convey the motor rotor into the rotor groove one by one through rotation, and the automatic feeding function is completed; The pressure equipment includes pressure equipment assembly, multiple adjusting assemblies and material placing assembly, the pressure equipment assembly includes two support plates, first rotary disc, multiple rotor grooves, motor rotor, rotor shaft, circular cavity, first threaded rod, two internally -threaded circular sliders, motor groove and drive motor, two support plates are fixedly installed on the top of base, first rotary disc is set up above the base, multiple rotor grooves are all set up on first rotary disc, motor rotor is set up in the corresponding rotor groove, rotor shaft is fixedly installed on motor rotor, circular cavity is set up on first rotary disc, first threaded rod is rotatably installed in circular cavity, two internally -threaded circular sliders are all threaded on first threaded rod, motor groove is set up on the inner wall of circular cavity, drive motor is fixedly installed on the inner wall of one side of motor groove, and the output shaft of drive motor is fixedly connected with the one end of first threaded rod; The adjusting assembly includes two first support rods, mounting plate, multiple first through grooves, multiple connecting rods and multiple second support rods, two first support rods are hingedly installed on internally -threaded circular slider, mounting plate is slidably installed in circular cavity, the top of two first support rods is hingedly connected with mounting plate, multiple first through grooves are all symmetrically set up on the inner wall of circular cavity, multiple connecting rods are respectively and symmetrically hingedly installed on the top of mounting plate, multiple second support rods are respectively hingedly installed on multiple connecting rods, and the top of multiple second support rods respectively extends into first through groove and is respectively matched with multiple first through grooves; The material placing assembly includes first rotating shaft, second rotary disc, multiple circular through grooves and bearing, first rotating shaft is rotatably installed on two support plates, two second rotary discs are fixedly sleeved on first rotating shaft, multiple circular through grooves are respectively and evenly set up on two second rotary discs, bearing is set up in the corresponding circular through groove, and multiple circular through grooves are matched with bearing. The feeding mechanism comprises a feeding assembly and a driving assembly, the feeding assembly comprises a rectangular block, two connecting blocks, a second through groove, a circular chute, a fixed circular rod, a rectangular positioning block, a U-shaped frame, a baffle and a limiting rod, the rectangular block is arranged above the first rotating disc, two connecting blocks are fixedly installed on the outer walls of the mutually distant sides of the rectangular block respectively, the mutually distant sides of the two connecting blocks are fixedly connected with two supporting plates respectively, the second through groove is formed in the rectangular block, the circular chute is formed in the outer wall of the rectangular block, the fixed circular rod is fixedly installed on the two supporting plates, the rectangular positioning block is rotatably sleeved on the fixed circular rod, the U-shaped frame is fixedly installed on the bottom of the rectangular positioning block, the baffle is fixedly installed on the bottom of the U-shaped frame, and the limiting rod is fixedly installed on the inner wall of the U-shaped frame.

2. The motor rotor press fitting tool according to claim 1, wherein The driving assembly comprises two second rotating shafts, a third rotating shaft, a cam, first belt pulleys, second belt pulleys, synchronous belts, a rotating motor and hydraulic cylinders, the two second rotating shafts are rotatably installed on the two supporting plates respectively, the mutually close ends of the two second rotating shafts are fixedly connected with the first rotating disc, the third rotating shaft is rotatably installed on the two supporting plates, the cam is fixedly sleeved on the third rotating shaft, the first belt pulleys are fixedly sleeved on the first rotating shaft and the second rotating shaft respectively, the second belt pulleys are fixedly sleeved on the first rotating shaft and the third rotating shaft respectively, the synchronous belts are wound around the two first belt pulleys and the two second belt pulleys respectively, the rotating motor is fixedly installed on the outer wall of the corresponding supporting plate, the output shaft of the rotating motor is fixedly connected with one end of the second rotating shaft, and the hydraulic cylinders are fixedly installed on the mutually close sides of the two supporting plates.

3. The motor rotor press fitting tool of claim 1, wherein, The top of the base is fixedly installed with a collecting box, the bottom inner wall of the collecting box is inclined, and a buffer pad is arranged on the bottom inner wall of the collecting box.

4. The motor rotor press fitting tool of claim 1, wherein, The bottom of the first rotating disc is provided with an arc-shaped block, the mutually close sides of the two supporting plates are fixedly installed with two connecting plates, the two connecting plates are fixedly connected with the arc-shaped block, and a feeding groove is formed in the bottom of the arc-shaped block.

5. The motor rotor press fitting tool of claim 1, wherein, A sliding rod is fixedly installed in the circular cavity, and the sliding rod penetrates through and is in sliding connection with the two internal threaded circular blocks.

6. The motor rotor press fitting tool of claim 1, wherein, A limiting ring is fixedly installed in each of the plurality of circular through grooves, the limiting rings are matched with the two hydraulic cylinders respectively, electromagnets are fixedly installed on the output shafts of the two hydraulic cylinders, a plurality of sliding grooves are formed in the circular cavity, and the mounting plates are matched with the sliding grooves respectively.

7. A press-fitting method for a press-fitting tool for a motor rotor according to any one of claims 1 to 6, characterized by, The method comprises the following steps: S1: the corresponding motor rotor is placed in the rectangular block, and the bearing is placed in the circular through groove to prepare; S2: the rotating motor is started, and the rotating motor drives the whole equipment to rotate and operate; S3: the motor rotor falling from the rectangular block to the first rotating disc is rotated to the same horizontal plane with the bearing on the corresponding second rotating disc, at this time, the hydraulic cylinder is started, and the hydraulic cylinder pushes the bearing on the second rotating disc to be press-fitted on the corresponding first rotating disc; S4: the pressed motor rotor rotates to the corresponding position and falls into the collection box, and is collected uniformly with the collection box; S5: after the bearing is pressed, the operation is stopped, and the motor rotor and the bearing are replenished.

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