A motor shaft core assembly, assembly equipment and assembly method for a new energy vehicle

Abstract

The present invention relates to the technical field related to motor shaft core assemblies, and specifically to a motor shaft core assembly for new energy vehicles, an assembly device and an assembly method. The motor shaft core assembly for new energy vehicles includes a rotor shaft and a kit provided on the rotor shaft. The kit includes: an annular seat, a central cylinder, and a limiting circular plate. A first central through-hole, a second central through-hole, and a third central through-hole for the rotor shaft to pass through are respectively provided at the centers of the three, and the central cylinder is located between the annular seat and the limiting circular plate; wherein, a deformation structure is provided between the annular seat and the central cylinder, and the limiting circular plate is directly connected to the annular seat through an assembly structure. During the operation of the automotive motor, the deformation structure can cause the limiting circular plate to move axially along the rotor shaft, and the axial clearance of the motor is absorbed and eliminated through the elastic deformation amount of the deformation structure, avoiding axial movement of the motor, improving the service life of the motor, and effectively reducing the noise generated during the operation of the motor.

Description

Technical Field

[0001] The present invention relates to the technical field related to motor shaft core assemblies, and particularly to a motor shaft core assembly for new energy vehicles, an assembly device and an assembly method thereof. Background Art

[0002] The motor shaft core of an automobile is a key part in a drive motor, and its main function is to fix the rotor core and transmit torque. Due to the thermal expansion and contraction of the mechanical part material, the axial seizure of the motor rotor will occur, so when the rotor is installed in the stator to form a motor, a certain axial clearance must be left.

[0003] The size of the clearance has an important influence on the performance of the motor. If the axial clearance is too large: it will cause large axial movement during the operation of the motor, thereby increasing vibration and noise and shortening the service life of the motor; if the axial clearance is too small: it will cause the motor to be blocked, that is, it cannot start or operate normally. To eliminate the axial clearance, at present, the method of using graphite nylon gaskets or wave washers is mostly adopted to control the axial clearance.

[0004] However, in the above means of eliminating the axial clearance, when the motor is working, friction noise is easily generated between the washers, which speeds up the aging speed of the washers. At the same time, the assembly process is relatively cumbersome, which is not conducive to the convenience of daily maintenance. Therefore, there is still room for improvement in the existing methods of eliminating the axial clearance. Summary of the Invention

[0005] The purpose of the present invention is to provide a motor shaft core assembly for new energy vehicles, an assembly device and an assembly method thereof, so as to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A motor shaft core assembly for new energy vehicles includes a rotor shaft and a kit provided on the rotor shaft. The kit includes:

[0008] A ring seat, a central cylinder and a limiting circular plate, and a first central through hole, a second central through hole and a third central through hole for the rotor shaft to pass through are respectively provided at the centers of the three, and the central cylinder is located between the ring seat and the limiting circular plate;

[0009] Wherein, a deformation structure is provided between the ring seat and the central cylinder, the limiting circular plate is directly connected to the ring seat through an assembly structure, and the ring seat is in interference fit with the rotor shaft, and the deformation structure can cause the limiting circular plate to move axially along the rotor shaft.

[0010] As a further solution of the present invention: the deformation structure includes a plurality of elastic arms fixedly arranged at one end of the central cylinder and a plurality of protrusions formed on the inner wall of the ring seat, the elastic arms are arranged obliquely, and the protrusions are provided with a force-bearing inclined surface cooperating with the elastic arms;

[0011] Wherein, the elastic arm is made of spring steel, and a plurality of the elastic arms and the protrusion blocks are respectively distributed equidistantly along the circumference on the central cylinder and the ring seat, a plurality of positioning bosses are also provided on the inner wall of the ring seat, and a plurality of positioning holes adapted to the positioning bosses are provided at the end of the central cylinder.

[0012] As a further solution of the present invention: the assembly structure includes multiple protrusions formed on the side of the limiting disc and multiple hook-shaped protrusions formed on the inner wall of the ring seat, and the protrusions and the hook-shaped protrusions are respectively provided with matching first inclined surfaces and second inclined surfaces, the limiting disc is also provided with multiple positioning pins, and the ring seat is provided with multiple positioning sleeves adapted to the positioning pins.

[0013] An assembly device for the new energy vehicle motor shaft core assembly is used to assemble the kit onto the rotor shaft, comprising:

[0014] Frame;

[0015] An assembly plate, movably disposed on the frame and connected to two sets of threaded drive mechanisms mounted on the frame;

[0016] A first vertical arm and a second vertical arm are respectively provided on the assembly plate, a pipe for stacking the kit is provided between the two first vertical arms, a hydraulic cylinder is installed between the two second vertical arms, a pressing cylinder for pressing the kit on the rotor shaft is provided at the movable end of the hydraulic cylinder, and the threaded driving mechanism can drive the assembly plate to move along the length direction of the frame so that the pressing cylinder and the pipe correspond to the rotor shaft respectively;

[0017] A material blocking mechanism and a material discharging mechanism are installed on the pipeline. When the pipeline moves toward the top of the rotor shaft, the material blocking mechanism and the material discharging mechanism are triggered in sequence. The material blocking mechanism is used to receive the kit except the lowest end of the pipeline. The material discharging mechanism can release the kit at the lowest end of the pipeline so that the kit falls onto the rotor shaft, and the pressing cylinder performs a pressing action on the kit.

[0018] As a further solution of the present invention: The feeding mechanism includes two sets of opposite-moving structures provided on the pipeline and two sets of elastic telescopic structures installed on the side of the second vertical arm. The opposite-moving structure includes a baffle slidably provided on the pipeline and a follower plate fixed to the baffle. The follower plate is provided with an inclined through groove;

[0019] Wherein, a ring body connected to the elastic telescopic structure is also slidably sleeved on the pipeline. Two connecting arms are provided on the ring body. A second cylinder adapted to the inclined through groove is provided at one end of the connecting arm away from the ring body. The second cylinder penetrates the inclined through groove and is slidably connected to the follower plate.

[0020] As a further solution of the present invention: A guide rail is provided on the side of the second vertical arm. A slider is slidably fitted in the guide rail. The elastic telescopic structure includes an assembly cylinder fixed to the slider and a vertical rod slidably sleeved on the assembly cylinder. One end of the vertical rod is fixed to the ring body, and the other end is connected to a limiting plate fixedly provided on the side of the frame body through a plurality of fixing arms;

[0021] Wherein, the vertical rod is also fixed to a boss slidably provided inside the assembly cylinder. A second cylindrical spring and a third cylindrical spring sleeved on the outer periphery of the vertical rod are also provided inside the assembly cylinder. The first ends of the second cylindrical spring and the third cylindrical spring are connected to the boss, and the second ends are in contact with the inner wall of the assembly cylinder.

[0022] As a further solution of the present invention: A first cylinder is also provided on the outer wall of the assembly cylinder. The limiting plate is provided with a first groove and a second groove respectively adapted to the first cylinder and the vertical rod. The first cylinder and the end of the vertical rod away from the ring body respectively extend into the first groove and the second groove;

[0023] The first groove includes a connected straight section and an inclined section. The second groove includes a connected first groove section, a second groove section, a third groove section, and a fourth groove section, which can form a rectangular shape, and the length of the first groove section is greater than the length of the third groove section.

[0024] As a further solution of the present invention: A guide member is provided on the outer wall of the pipeline. The material blocking mechanism includes two horizontal axes slidably provided on the guide member, a connecting plate fixedly connecting the two horizontal axes, and first cylindrical springs respectively slidably sleeved on the outer peripheries of the two horizontal axes. The two ends of the first cylindrical spring are respectively connected to the guide member and the connecting plate. The pipeline is provided with through holes for the horizontal axes to extend into;

[0025] Wherein, a roller is also provided on the connecting plate. The roller is in contact with a track fixedly installed at the bottom of the limiting plate. An inclined portion and a straight portion are formed on the track.

[0026] A method for assembling the new energy vehicle motor shaft core assembly using the assembly equipment comprises the following steps:

[0027] Step 1, stack the kits to be assembled in the pipe;

[0028] Step 2: The threaded drive mechanism drives the assembly plate to move forward, causing the pipeline to move to a position directly above the rotor shaft;

[0029] Step 3: The material blocking mechanism and the material discharging mechanism are triggered in sequence, the material blocking mechanism receives the kits except the lowest end in the pipeline, and the material discharging mechanism releases the lowest end kit onto the rotor shaft;

[0030] Step 4: The threaded drive mechanism drives the assembly plate to move in the opposite direction and reset, and the material discharge mechanism and the material blocking mechanism are triggered in sequence. The material discharge mechanism partially covers the bottom of the pipeline and receives multiple sets released by the subsequent material blocking mechanism.

[0031] Step 5: The pressing cylinder reaches the position directly above the rotor shaft, and the hydraulic cylinder drives the pressing cylinder to press down the assembly on the rotor shaft, so that the assembly is completed.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] The ring seat, the center cylinder and the limiting disc are stacked in sequence to form a whole. Since the multiple elastic arms 6 arranged on the center cylinder at equal distances along the circumference are elastic, the whole has elasticity. The deformation of the elastic arms in the whole can drive the limiting disc to move axially on the rotor shaft, absorb and eliminate the axial clearance of the motor, avoid axial movement of the motor, increase the service life of the motor, effectively reduce the noise generated during the operation of the motor, and improve the performance of the motor.

[0034] Secondly, the present application also proposes relevant assembly equipment. When assembling the kit and the rotor shaft, the reciprocating movement of the assembly plate enables the pipeline and the pressing cylinder to correspond to the rotor shaft respectively. At the same time, during the movement of the assembly plate, the coordinated action of the material discharge mechanism and the material blocking mechanism enables the kits to be assembled in the pipeline to be dropped onto the rotor shaft one by one. By pressing down the pressing cylinder, the assembly is completed, thereby realizing the automation of the assembly and simplifying the production assembly work.

[0035] In addition, through mechanical interlocking, the actions of the discharge mechanism and the blocking mechanism are executed in a strict logical sequence, and the action of the discharge mechanism is driven by the rebound of the second cylindrical spring and the third cylindrical spring. Since the spring rebound is instantaneous, the release position of the kit can be guaranteed to be accurate, ensuring the accurate assembly of the kit and the rotor shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 Schematic structural diagram of an embodiment of the motor shaft core assembly for new energy vehicles.

[0037] Figure 2 Schematic structural diagram of an embodiment of the motor shaft core assembly for new energy vehicles from another angle.

[0038] Figure 3 Half-sectional view of the kit in an embodiment of the motor shaft core assembly for new energy vehicles.

[0039] Figure 4 For Figure 3 Schematic structural diagram from another angle.

[0040] Figure 5 Exploded view of the structure of the kit in an embodiment of the motor shaft core assembly for new energy vehicles.

[0041] Figure 6 For Figure 5 Schematic structural diagram from another angle.

[0042] Figure 7 For Figure 4 Enlarged view of the structure at A in

[0043] Figure 8 Schematic structural diagram of an embodiment of the assembly equipment.

[0044] Figure 9 Schematic structural diagram of an embodiment of the assembly equipment from another angle.

[0045] Figure 10 Schematic structural diagram of an embodiment of the assembly equipment from yet another angle.

[0046] Figure 11 For Figure 10 Enlarged view of the structure at B in

[0047] Figure 12 Schematic structural diagram of the frame body in an embodiment of the assembly equipment.

[0048] Figure 13 Schematic diagram of the connection state of the material blocking mechanism, the material feeding mechanism and the pipeline in an embodiment of the assembly equipment.

[0049] Figure 14 Schematic structural diagram of the limit plate in an embodiment of the assembly equipment.

[0050] Figure 15 Exploded view of the structure of the material blocking mechanism and the material feeding mechanism in an embodiment of the assembly equipment.

[0051] In the figure: 1, ring base; 101, first central through port; 102, positioning convex column; 2, central cylinder; 201, second central through port; 202, positioning hole; 3, limiting disc; 301, third central through port; 4, rotor shaft; 5, protruding block; 501, force-bearing inclined plane; 6, elastic arm; 7, positioning pin; 8, positioning sleeve; 9, protruding part; 901, first inclined plane; 10, hook-shaped protrusion; 1001, second inclined plane; 11, frame body; 12, assembly plate; 13, guide rail; 14, first vertical arm; 15, second vertical arm; 1501, chute; 16, drive motor; 17, lead screw; 18, connecting block; 19, hydraulic cylinder; 20, pressing cylinder; 21, pipeline; 22, ring body; 23, guiding part; 24, horizontal shaft; 25, first cylindrical spring; 26, connecting plate; 2601, roller; 27, baffle; 28, follower plate; 2801, inclined through slot; 29, assembly cylinder; 2901, first cylinder; 2902, convex platform; 30, vertical rod; 31, second cylindrical spring; 32, third cylindrical spring; 33, slider; 34, connecting arm; 3401, second cylinder; 35, fixed arm; 36, limiting plate; 3601, straight section; 3602, inclined section; 3603, first groove section; 3604, second groove section; 3605, third groove section; 3606, fourth groove section; 37, track; 3701, inclined part; 3702, straight part. Detailed implementation manner

[0052] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0053] In addition, an element in the present invention is referred to as being "fixed to" or "disposed on" another element, which can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0054] Please refer to Figures 1 - 7 , in the embodiment of the present invention, a motor shaft core assembly for a new energy vehicle includes a rotor shaft 4 and a kit disposed on the rotor shaft 4. The kit includes:

[0055] A ring base 1, a central cylinder 2, and a limiting disc 3 are respectively provided with a first central through-hole 101, a second central through-hole 201, and a third central through-hole 301 at their centers for the rotor shaft 4 to pass through, and the central cylinder 2 is located between the ring base 1 and the limiting disc 3;

[0056] Wherein, a deformation structure is provided between the ring base 1 and the central cylinder 2, the limiting disc 3 is directly connected to the ring base 1 through an assembly structure, and the ring base 1 is in interference fit with the rotor shaft 4, and the deformation structure can cause the limiting disc 3 to move axially along the rotor shaft 4.

[0057] Specifically, when assembling the kit, first place the central cylinder 2 inside the ring base 1, and then press the limiting disc 3 into the ring base 1. The limiting disc 3 and the ring base 1 are connected through the assembly structure, and at the same time, the deformation structure is caused to deform. Finally, install the assembled kit on the rotor shaft 4, that is, the rotor shaft 4 passes through the first central through-hole 101, the second central through-hole 201, and the third central through-hole 301, and the ring base 1 and the rotor shaft 4 are in interference fit. Therefore, the ring base 1, the central cylinder 2, and the limiting disc 3 form an integral body. And because the deformation structure can deform between the ring base 1 and the limiting disc 3, the kit is an integral body with elastic characteristics. During the operation of the automotive motor, the deformation structure can cause the limiting disc 3 to move axially along the rotor shaft 4, and the axial clearance of the motor is absorbed and eliminated through the elastic deformation amount of the deformation structure, avoiding axial movement of the motor, improving the service life of the motor, and effectively reducing the noise generated during the operation of the motor.

[0058] Please refer to again Figure 5 And Figure 6 The deformation structure includes a plurality of elastic arms 6 fixedly provided at one end of the central cylinder 2 and a plurality of protruding blocks 5 formed on the inner wall of the ring base 1. The elastic arms 6 are inclined, and the protruding blocks 5 are provided with a force-receiving inclined surface 501 that cooperates with the elastic arms 6. The elastic arms 6 are made of spring steel, and the plurality of elastic arms 6 and the protruding blocks 5 are evenly distributed along the circumference on the central cylinder 2 and the ring base 1 respectively. The inner wall of the ring base 1 is further provided with a plurality of positioning convex columns 102, and the end of the central cylinder 2 is provided with a plurality of positioning holes 202 adapted to the positioning convex columns 102.

[0059] Please refer to again Figure 3 、 Figure 5 、 Figure 6 And Figure 7, the assembly structure includes multiple protrusions 9 formed on the side of the limiting disc 3 and multiple hook-shaped protrusions 10 formed on the inner wall of the ring seat 1. The protrusions 9 and the hook-shaped protrusions 10 are respectively provided with a matching first inclined surface 901 and a second inclined surface 1001. The limiting disc 3 is also provided with multiple positioning pins 7, and multiple positioning sleeves 8 adapted to the positioning pins 7 are arranged in the ring seat 1.

[0060] Specifically, when assembling the ring seat 1, the central cylinder 2, and the limiting disc 3, first, place the central cylinder 2 into the ring seat 1, ensure that the positioning hole 202 is aligned with the positioning convex column 102, so as to ensure that the elastic arm 6 can be accurately attached to the protrusion block 5. Subsequently, press the limiting disc 3 into the ring seat 1 and ensure that the positioning pin 7 is aligned with the positioning sleeve 8. Then, the protrusion 9 can be aligned with the hook-shaped protrusion 10. During the subsequent pressing of the limiting disc 3, the first inclined surface 901 and the second inclined surface 1001 are attached. As the limiting disc 3 is pressed into the ring seat 1, the hook-shaped protrusion 10 gives way and deforms towards the inside of the ring seat 1. Finally, the first inclined surface 901 and the second inclined surface 1001 are separated, and the hook-shaped protrusion 10 hooks the limiting disc 3 through the protrusion 9. At the same time, the protrusion block 5 acts on the elastic arm 6, causing the elastic arm 6 to deform, so that the ring seat 1, the central cylinder 2, and the limiting disc 3 form an elastic whole.

[0061] Please refer to again Figures 8 - 15 , as another embodiment of the present invention, an assembly device for the new energy vehicle motor shaft core assembly is also proposed, which is used to assemble the kit onto the rotor shaft 4 and includes:

[0062] Frame 11;

[0063] Assembly plate 12, which is movably arranged on the frame 11 and is connected to two sets of screw drive mechanisms installed on the frame 11;

[0064] First vertical arm 14 and second vertical arm 15, two of each are respectively arranged on the assembly plate 12. A pipe 21 for stacking and placing the kit is arranged between the two first vertical arms 14. A hydraulic cylinder 19 is installed between the two second vertical arms 15. The movable end of the hydraulic cylinder 19 is provided with a pressing cylinder 20 for performing a pressing action on the kit located on the rotor shaft 4. The screw drive mechanism can drive the assembly plate 12 to move along the length direction of the frame 11, so that the pressing cylinder 20 and the pipe 21 are respectively corresponding to the rotor shaft 4;

[0065] The material blocking mechanism and the material discharging mechanism are installed on the pipe 21. When the pipe 21 moves toward the top of the rotor shaft 4, the material blocking mechanism and the material discharging mechanism are triggered in sequence. The material blocking mechanism is used to receive the kit except the lowermost end of the pipe 21. The material discharging mechanism can release the kit at the lowermost end of the pipe 21 so that the kit falls onto the rotor shaft 4, and the pressing cylinder 20 performs a pressing action on the kit.

[0066] Furthermore, in actual assembly work, a receiving platform for fixing the rotor shaft 4 is also provided under the frame 11. Taking the state shown in the accompanying drawings as an example, after the rotor shaft 4 is located in the assembly position, the pressing cylinder 20 is located directly above the rotor shaft 4. Subsequently, the threaded drive mechanism works to drive the assembly plate 12 to move on the frame 11, and the pipe 21 moves toward the direction directly above the rotor shaft 4. During this process, the blocking mechanism and the discharging mechanism are triggered in sequence. The blocking mechanism first receives the kits except the lowest end of the pipe 21 to ensure that the number of kits falling onto the rotor shaft 4 each time is unique. After the assembly plate 12 reaches the end of the stroke, that is, the pipe 21 is located directly above the rotor shaft 4, the discharging mechanism moves to release the kit at the lowest end of the pipe 21, so that the kit can fall onto the rotor shaft 4.

[0067] Subsequently, the threaded drive mechanism drives the assembly plate 12 to move in the reverse direction and reset, so that the pressing cylinder 20 is restored to the position directly above the rotor shaft 4, and the hydraulic cylinder 19 drives the pressing cylinder 20 to press down the set on the rotor shaft 4, thereby completing the assembly of the components (i.e., the ring seat 1 and the rotor shaft 4 complete the interference fit);

[0068] Among them, during the process of the assembly plate 12 moving in the reverse direction and resetting, the discharge mechanism is triggered first compared to the material blocking mechanism to cover the bottom part of the pipe 21. Then, when the material blocking mechanism is triggered, the multiple kits previously received are released, and the multiple kits are received by the discharge mechanism to facilitate feeding in the next round of assembly.

[0069] In detail, during the assembly process, the pressing cylinder 20 is used to press down to complete the assembly of the kit and the rotor shaft 4, and the pipe 21 releases the kit to be assembled onto the rotor shaft 4 after reaching the top of the rotor shaft 4. Therefore, in order to ensure the accuracy of the assembly, the movement accuracy of the assembly plate 12 must meet certain requirements. For this, the threaded drive mechanism adopts a threaded matching method to drive the movement of the assembly plate 12 on the frame 11, that is, the position switching of the pipe 21 and the pressing cylinder 20;

[0070] The screw driving mechanism includes a driving motor 16 mounted on the frame 11, a lead screw 17 rotatably mounted on the frame 11 and connected to the output end of the driving motor 16, and a connecting block 18 disposed on the lead screw 17 and threadedly connected to the lead screw 17. The connecting block 18 is fixed to the side of the assembly plate 12.

[0071] Please refer to again Figure 11 , Figure 13 and Figure 15 , the feeding mechanism includes two sets of opposite-moving structures disposed on the pipeline 21 and two sets of elastic telescopic structures mounted on the side of the second vertical arm 15. The opposite-moving structures include a baffle 27 slidably disposed on the pipeline 21 and a follower plate 28 fixed to the baffle 27. An inclined through groove 2801 is provided on the follower plate 28;

[0072] Wherein, a ring body 22 connected to the elastic telescopic structure is also slidably sleeved on the pipeline 21. Two connecting arms 34 are provided on the ring body 22. A second cylinder 3401 adapted to the inclined through groove 2801 is provided at one end of the connecting arm 34 away from the ring body 22. The second cylinder 3401 penetrates through the inclined through groove 2801 and is slidably connected to the follower plate 28.

[0073] A guide rail 13 is provided on the side of the second vertical arm 15. A slider 33 is slidably fitted in the guide rail 13. The elastic telescopic structure includes an assembly cylinder 29 fixed to the slider 33 and a vertical rod 30 slidably sleeved on the assembly cylinder 29. One end of the vertical rod 30 is fixed to the ring body 22, and the other end is connected to a limiting plate 36 fixed to the side of the frame 11 through a plurality of fixing arms 35. The vertical rod 30 is also fixed to a boss 2902 slidably disposed inside the assembly cylinder 29. A second cylindrical spring 31 and a third cylindrical spring 32 sleeved on the outer periphery of the vertical rod 30 are further provided inside the assembly cylinder 29. The first ends of the second cylindrical spring 31 and the third cylindrical spring 32 are connected to the boss 2902, and the second ends are abutted against the inner wall of the assembly cylinder 29.

[0074] It should be added that when the vertical rod 30 performs the telescopic action, it is required to drive the ring body 22 to slide on the outer wall of the pipeline 21. For this reason, a chute 1501 for the vertical rod 30 to move is also provided on the second vertical arm 15.

[0075] The outer wall of the assembly tube 29 is also provided with a first column 2901, and the limiting plate 36 is provided with a first slot body and a second slot body respectively adapted to the first column body 2901 and the vertical rod 30, and the first column body 2901 and the vertical rod 30 extend into the first slot body and the second slot body respectively at one end away from the ring body 22. The first slot body includes a connected straight section 3601 and an inclined section 3602, and the second slot body includes a connected first slot section 3603, a second slot section 3604, a third slot section 3605 and a fourth slot section 3606, which can form a rectangular shape, and the length of the first slot section 3603 is greater than the length of the third slot section 3605.

[0076] Specifically, taking the state in the figure as an example, the first column 2901 is located at one end of the straight section 3601 away from the inclined section 3602, and the end of the vertical rod 30 is located at one end of the first slot section 3603 away from the second slot section 3604;

[0077] When the assembly plate 12 moves and drives the pipe 21 to approach the position just above the rotor shaft 4, the vertical rod 30 moves along the first slot section 3603 toward the second slot section 3604, and the first column 2901 moves along the straight section 3601 and the inclined section 3602 in sequence. Before the first column 2901 enters the inclined section 3602, the vertical rod 30 has passed over the fourth slot section 3606;

[0078] When the first column 2901 moves in the straight section 3601, the blocking mechanism is triggered to receive the set except the lowest end of the pipe 21. When the first column 2901 moves in the inclined section 3602, the assembly cylinder 29 will give way. Specifically, the assembly cylinder 29 drives the slider 33 to slide downward in the guide rail 13, and the second column spring 31 is compressed. When the vertical rod 30 moves to the connection between the first slot section 3603 and the second slot section 3604, the pipe 21 reaches the position directly above the rotor shaft 4. At this time, the second The cylindrical spring 31 rebounds, and the vertical rod 30 moves downward, quickly moves down along the second slot section 3604 to the connection between the second slot section 3604 and the third slot section 3605, and drives the ring body 22 to slide downward on the pipe 21. Correspondingly, the second column 3401 slides with the follower plate 28 through the inclined through slot 2801, so that the follower plate 28 drives the baffle plate 27 to slide toward the outside of the pipe 21. At this time, the set between the material blocking mechanism and the baffle plate 27 is released and falls onto the rotor shaft 4, waiting for the pressing cylinder 20 to press down.

[0079] Subsequently, the assembly plate 12 moves in the opposite direction to reset, and the vertical rod 30 moves along the third slot section 3605 away from the second slot section 3604. The first column 2901 first moves along the inclined section 3602 to cause the assembly tube 29 to move upward and reset on the second vertical arm 15. The third column spring 32 is compressed. When the vertical rod 30 moves to the connection between the third slot section 3605 and the fourth slot section 3606, the third column spring 32 will rebound, causing the vertical rod 30 to move upward and enter the first slot section 3603. (It should be emphasized that the fourth slot section 3606 is set slightly wider to ensure that the third column spring 32 can rebound smoothly while the vertical rod 30 moves horizontally, so as to avoid the vertical rod 30 being stuck in the fourth slot section 3606 before the third column spring 32 completes the rebound). Accordingly, the second column 3401 is slidably matched with the follower plate 28 again, and the baffle plate 27 slides toward the inside of the pipe 21 to pre-accept the multiple sets that are about to fall into the pipe 21, so as to facilitate normal drop onto the rotor shaft 4 during the next round of assembly.

[0080] The assembly plate 12 continues to move, and the vertical rod 30 moves within the portion of the first slot section 3603 that is longer than the third slot section 3605. During this process, the material blocking mechanism moves to release the multiple kits thereon so that the multiple kits fall onto the baffle 27.

[0081] Please refer again Figure 14 and Figure 15 The outer wall of the pipe 21 is provided with a guide member 23, the material blocking mechanism includes two transverse shafts 24 slidably arranged on the guide member 23, a connecting plate 26 fixedly connecting the two transverse shafts 24, and first cylindrical springs 25 respectively slidably sleeved on the outer peripheries of the two transverse shafts 24, the two ends of the first cylindrical spring 25 are respectively connected to the guide member 23 and the connecting plate 26, and the pipe 21 is provided with a through hole for the transverse shaft 24 to extend into;

[0082] The link plate 26 is further provided with a roller 2601 , and the roller 2601 abuts against a track 37 fixedly installed at the bottom of the limiting plate 36 , and an inclined portion 3701 and a straight portion 3702 are formed on the track 37 .

[0083] In the first section of the process in which the pipe 21 moves toward the upper part of the rotor shaft 4, the roller 2601 rolls along the inclined portion 3701, and then the connecting plate 26 gives way, the first column spring 25 is compressed, and the horizontal shaft 24 extends into the pipe 21, and the horizontal shaft 24 is located in the gap between two adjacent sets to receive the sets except the lowest end of the pipe 21;

[0084] On the contrary, when the pipe 21 moves away from the rotor shaft 4 and resets, the roller 2601 rolls along the straight portion 3702 and the inclined portion 3701 in sequence, and the first cylindrical spring 25 rebounds, so that the horizontal axis 24 is pulled out of the pipe 21, and the kit located above the horizontal axis 24 can fall onto the baffle 27. Therefore, when the pipe 21 moves away from the rotor shaft 4 and resets, the vertical rod 30 reaches the connection between the third slot segment 3605 and the fourth slot segment 3606 earlier than the roller 2601 rolls onto the inclined portion 3701.

[0085] As another embodiment of the present invention, a method for assembling the new energy vehicle motor shaft core assembly using the assembly equipment is also proposed, comprising the following steps:

[0086] Step 1, stacking the kits to be assembled in the pipe 21;

[0087] Step 2: The threaded drive mechanism drives the assembly plate 12 to move forward, causing the pipe 21 to move to a position directly above the rotor shaft 4;

[0088] Step 3: The material blocking mechanism and the material discharging mechanism are triggered in sequence, the material blocking mechanism receives the kit except the lowest end in the pipe 21, and the material discharging mechanism releases the lowest end kit onto the rotor shaft 4;

[0089] Step 4: The threaded drive mechanism drives the assembly plate 12 to move in the opposite direction and reset, and the material discharge mechanism and the material blocking mechanism are triggered in sequence. The material discharge mechanism shields the bottom part of the pipe 21 and receives the multiple sets released by the subsequent material blocking mechanism.

[0090] Step 5: The pressing cylinder 20 reaches the position directly above the rotor shaft 4, and the hydraulic cylinder 19 drives the pressing cylinder 20 to press down the assembly on the rotor shaft 4, so that the assembly is completed.

[0091] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0092] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An assembly device for assembling a shaft core assembly of a new energy vehicle motor, the shaft core assembly of the new energy vehicle motor comprising a rotor shaft (4) and a kit arranged on the rotor shaft (4); the kit comprising: The ring seat (1), the central cylinder (2) and the limiting disc (3) are respectively provided with a first central opening (101), a second central opening (201) and a third central opening (301) for allowing the rotor shaft (4) to pass through at their centers, and the central cylinder (2) is located between the ring seat (1) and the limiting disc (3); A deformation structure is provided between the ring seat (1) and the central cylinder (2); the limiting disc (3) and the ring seat (1) are directly connected via the assembly structure; the ring seat (1) and the rotor shaft (4) are interference fit; the deformation structure can cause the limiting disc (3) to move along the axial direction of the rotor shaft (4) so ​​as to assemble the kit onto the rotor shaft (4); Characterized in that the assembly equipment comprises: Frame (11); An assembly plate (12) is movably mounted on the frame (11) and connected to two sets of threaded drive mechanisms mounted on the frame (11); Two first vertical arms (14) and two second vertical arms (15) are respectively arranged on the assembly plate (12); a pipe (21) for stacking and placing the kit is arranged between the two first vertical arms (14); a hydraulic cylinder (19) is installed between the two second vertical arms (15); a pressing cylinder (20) for pressing the kit located on the rotor shaft (4) is arranged at the movable end of the hydraulic cylinder (19); and the threaded drive mechanism can drive the assembly plate (12) to move along the length direction of the frame (11) so that the pressing cylinder (20) and the pipe (21) correspond to the rotor shaft (4) respectively; The material blocking mechanism and the material discharging mechanism are installed on the pipe (21). When the pipe (21) moves toward the upper part of the rotor shaft (4), the material blocking mechanism and the material discharging mechanism are triggered in sequence. The material blocking mechanism is used to receive the kit except the kit at the lower end of the pipe (21). The material discharging mechanism can release the kit at the lower end of the pipe (21) so that the kit falls onto the rotor shaft (4), and the pressing cylinder (20) performs a pressing action on the kit. The deformation structure comprises a plurality of elastic arms (6) fixedly arranged at one end of the central cylinder (2) and a plurality of protrusion blocks (5) formed on the inner wall of the ring seat (1); the elastic arms (6) are arranged at an angle, and the protrusion blocks (5) are provided with force-bearing inclined surfaces (501) cooperating with the elastic arms (6).

2. An assembly device according to claim 1, characterized in that: The material discharge mechanism comprises two sets of structures moving towards each other arranged on the pipe (21) and two sets of elastic telescopic structures installed on the side of the second vertical arm (15), the structures moving towards each other comprising a baffle (27) slidably arranged on the pipe (21) and a follower plate (28) fixed on the baffle plate (27), the follower plate (28) being provided with an inclined through slot (2801); The pipe (21) is also slidably sleeved with a ring body (22) connected to the elastic telescopic structure, the ring body (22) is provided with two connecting arms (34), one end of the connecting arm (34) away from the ring body (22) is provided with a second column (3401) adapted to the inclined through slot (2801), the second column (3401) passes through the inclined through slot (2801) and is slidably connected to the follower plate (28).

3. An assembly device according to claim 2, characterized in that: A guide rail (13) is provided on the side of the second vertical arm (15), a slider (33) is slidably engaged in the guide rail (13), the elastic telescopic structure comprises an assembly tube (29) fixed to the slider (33) and a vertical rod (30) slidably engaged with the assembly tube (29), one end of the vertical rod (30) is fixed to the ring body (22), and the other end is connected to a limit plate (36) fixed to the side of the frame body (11) through a plurality of fixed arms (35); The vertical rod (30) is also fixed to a boss (2902) slidably arranged inside the assembly tube (29); the interior of the assembly tube (29) is also provided with a second columnar spring (31) and a third columnar spring (32) sleeved on the outer circumference of the vertical rod (30); the head ends of the second columnar spring (31) and the third columnar spring (32) are connected to the boss (2902), and the tail ends are in contact with the inner wall of the assembly tube (29).

4. An assembly device according to claim 3, characterized in that: The outer wall of the assembly cylinder (29) is further provided with a first column (2901); the limiting plate (36) is provided with a first groove body and a second groove body respectively adapted to the first column body (2901) and the vertical rod (30); the first column body (2901) and the vertical rod (30) have one end away from the ring body (22) extending into the first groove body and the second groove body respectively; The first trough body comprises a connected straight section (3601) and an inclined section (3602); the second trough body comprises a connected first trough section (3603), a second trough section (3604), a third trough section (3605) and a fourth trough section (3606); the four trough sections are capable of forming a rectangular shape, and the length of the first trough section (3603) is greater than the length of the third trough section (3605).

5. An assembly device according to claim 4, characterized in that: The outer wall of the pipe (21) is provided with a guide member (23), the material blocking mechanism comprises two transverse shafts (24) slidably arranged on the guide member (23), a connecting plate (26) fixedly connecting the two transverse shafts (24), and first cylindrical springs (25) slidably sleeved on the outer circumferences of the two transverse shafts (24), the two ends of the first cylindrical spring (25) are respectively connected to the guide member (23) and the connecting plate (26), and the pipe (21) is provided with a through hole for the transverse shaft (24) to extend therein; The link plate (26) is further provided with a roller (2601), the roller (2601) abuts against a track (37) fixedly mounted on the bottom of the limit plate (36), and the track (37) is formed with an inclined portion (3701) and a straight portion (3702).

6. An assembly device according to claim 1, characterized in that: The elastic arm (6) is made of spring steel, and a plurality of the elastic arms (6) and the protruding blocks (5) are respectively distributed equidistantly along the circumference on the central cylinder (2) and the ring seat (1), the inner wall of the ring seat (1) is also provided with a plurality of positioning bosses (102), and the end of the central cylinder (2) is provided with a plurality of positioning holes (202) adapted to the positioning bosses (102).

7. An assembly device according to claim 6, characterized in that: The assembly structure comprises a plurality of protrusions (9) formed on the side of the limiting disc (3) and a plurality of hook-shaped protrusions (10) formed on the inner wall of the ring seat (1), and the protrusions (9) and the hook-shaped protrusions (10) are respectively provided with a matching first inclined surface (901) and a second inclined surface (1001), the limiting disc (3) is also provided with a plurality of positioning pins (7), and the ring seat (1) is provided with a plurality of positioning sleeves (8) adapted to the positioning pins (7).

8. A method for assembling the new energy vehicle motor shaft core assembly using the assembly equipment as claimed in claim 1, characterized in that: The following steps are involved: Step 1, stacking the kit to be assembled in the pipe (21); Step 2: The threaded drive mechanism drives the assembly plate (12) to move in a positive direction, causing the pipe (21) to move to a position directly above the rotor shaft (4); Step three, the material blocking mechanism and the material discharging mechanism are triggered in sequence, the material blocking mechanism receives the set except the lowest end in the pipeline (21), and the material discharging mechanism releases the lowest end of the set onto the rotor shaft (4); Step 4: the threaded drive mechanism drives the assembly plate (12) to move in the opposite direction and reset, and the material discharge mechanism and the material blocking mechanism are triggered in sequence, and the material discharge mechanism partially covers the bottom of the pipe (21) to receive the multiple sets released by the subsequent material blocking mechanism; Step five: the pressing cylinder (20) reaches a position directly above the rotor shaft (4), and the hydraulic cylinder (19) drives the pressing cylinder (20) to press down the assembly located on the rotor shaft (4), so that the assembly is completed.

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