Assembly tool of motor stator

Abstract

An assembly tool of a motor stator comprises a connecting plate, a lifting mechanism is fixedly connected to the upper portion of the connecting plate, and a grabbing mechanism is movably connected with the lifting mechanism and the connecting plate; the lifting mechanism comprises a gland, a groove is formed in the lower portion of the gland, a lifting block is arranged in the groove, and the lifting block is in sliding connection with the gland; the top surface of the connecting plate is fixedly connected with the lower surface of the gland, and a connecting hole matched with the grabbing mechanism is formed in the edge of the connecting plate; one end of the grabbing mechanism is placed on the lifting block and makes contact with the lifting block, and the other end of the grabbing mechanism penetrates through the connecting hole and is arranged below the connecting plate. According to the utility model, the problems of difficulty in grabbing and assembling, difficulty in taking out a tool after assembling and the like when a rotor is firstly installed and then a stator is installed in the motor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor assembly, in particular to an assembly tool for a motor stator. Background Art

[0002] The motor of a car consists of a stator and a rotor. During the assembly process, the stator is usually placed and fixed first, with a gap between the stator and the rotor. The rotor is then clamped in with a tool to complete the assembly. In the actual assembly process, some transmission motors need to install the rotor first and then the stator due to the structure and assembly sequence. Since the rotor has been installed, the gap between the stator and the rotor is small. When the stator or rotor is magnetic, they will be attracted together. The gap between the stator and the housing is uneven and narrow, which makes assembly difficult. In severe cases, the stator and the rotor will be damaged.

[0003] CN108494192A discloses an assembly tool for the stator and rotor of a small servo motor, including a fixed seat, a front cover, a housing, a stator, a hanging frame, a rear cover, and a rotor. The rotor includes a rotating shaft and magnets uniformly distributed on the surface of the rotating shaft. A height adjustment device is uniformly distributed circumferentially on the fixed seat. An isolation device is provided on the upper end surface of the height adjustment device. The isolation device includes a wire harness and a spacer. The spacer is inserted between two corresponding adjacent magnets and the lower end of the spacer exceeds the lower end of the magnet. Bar iron block grooves are symmetrically provided on both sides of the spacer. Bar iron blocks are tightly fitted in the bar iron block grooves. Each bar iron block is attracted to the corresponding magnet. A second arc-shaped convex portion is provided on the side of the spacer away from the rotating shaft. When the rotor moves vertically downward, the second arc-shaped convex portion fits the inner wall of the stator. The material of the spacer is polytetrafluoroethylene. The stator and rotor will not attract each other during assembly.

[0004] CN102710070B relates to an assembly device for assembling a stator and a rotor, which includes an assembly base and a guide sleeve. After the end cover I is installed, the stator places the end cover I on the assembly base, the guide sleeve is arranged at the other end of the stator, the stator positioning step at the installation end cover II is the positioning step of the guide sleeve, and the inner hole of the guide sleeve matches the outer diameter of the rotor body. Since a matching guide sleeve is added between the stator or the stator body and the rotor body, in particular, when one of the stator body or the rotor body is magnetic, or both are magnetic, the guide sleeve is made of non-magnetic conductive material, thereby playing a guiding and magnetic isolation effect on the assembly of the stator and the rotor at the same time.

[0005] However, most of the prior art solutions are to install the rotor on the stator, and do not solve the problem of narrow gap and assembly difficulty caused by installing the rotor first and then the stator. Utility Model Content

[0006] The utility model aims to provide an assembly tool for a motor stator, which can stably grasp the stator in a narrow space, press the stator into place, and conveniently take out the stator after assembly, thereby solving the problems of difficulty in grasping and assembling the motor when the rotor is installed first and then the stator, and difficulty in taking out the tool after assembly.

[0007] The utility model provides the following solutions

[0008] An assembly tool for a motor stator comprises a connecting plate, a lifting mechanism is fixedly connected to the upper side of the connecting plate, and a grabbing mechanism is movably connected to the lifting mechanism and the connecting plate;

[0009] The lifting mechanism comprises a gland, the lower end surface of which is evenly provided with grooves, the outer side wall of the gland at the outer end of each groove is provided with a slide groove, a lifting block is accommodated in the groove, and the lifting block is slidably connected with the gland;

[0010] The top surface of the connecting plate is fixedly connected to the lower surface of the gland, and the edge of the connecting plate is provided with a connecting hole that matches the grabbing mechanism;

[0011] One end of the grabbing mechanism is arranged above the lifting block and is raised and lowered synchronously with the lifting block. One end of the grabbing mechanism is slidably connected to the slide groove and can be slid and raised along the slide groove. The other end of the grabbing mechanism passes through the connecting hole and is slidably connected to the bottom of the connecting plate.

[0012] The tooling can complete the grabbing, assembly and disassembly of the stator only by operating the parts above the connecting plate, and has a simple structure and is easy to use.

[0013] Furthermore, the grabbing mechanism includes a connecting rod, which is arranged above the connecting plate, one end of the connecting rod is pivotally connected to a grabbing rod, the free end of the connecting rod is slidably connected to the pressure cover, and is placed on the lifting block and contacts the lifting block; the connecting end of the grabbing rod passes through the connecting hole from under the connecting plate and is pivotally connected to the connecting rod, and the connecting hole and the grabbing rod are clearance-matched.

[0014] There is a gap between the connection hole of the connection plate and the grabbing rod, so the grabbing rod will tilt inwards and close during grabbing to ensure stable grabbing.

[0015] Furthermore, the pressure cover is cylindrical and has a through hole at the center of the circle. The lower part of the pressure cover is provided with grooves radiating from the center of the circle to the outside. The lifting block includes a lifting claw matching the groove, and the free end of the connecting rod is placed on the lifting claw and in contact with the lifting claw. A lifting rod is connected to the upper surface at the center of the lifting block, and the lifting rod is slidably sleeved inside the through hole. A lifting ring is threadedly connected to the top of the lifting rod.

[0016] The whole set of work clothes can be lifted by the lifting ring at one point, which is convenient to use.

[0017] Furthermore, a tubular boss is provided on the top surface of the pressure cover around the through hole, a thread is provided on the outer side of the boss, a baffle is provided on the outer side of the boss, a limiting nut is provided above the baffle, the limiting nut is threadedly connected to the boss, the baffle is arranged between the pressure cover and the limiting nut, and is rotatably sleeved on the outer side of the boss.

[0018] Furthermore, a sliding groove matching the free end of the connecting rod is provided on the side wall of the pressure cover, and the sliding groove is arranged in the vertical direction. The upper end of the sliding groove is open, and the lower end is connected with the outer end of the groove. A connecting groove matching the upper end opening of the sliding groove is provided on the baffle, and the free end of the connecting rod is slidably connected with the sliding groove.

[0019] The free end of the connecting rod can slide up and down in the slide slot, and the connecting rod can be allowed to enter and exit the slide slot or be restricted in the slide slot by rotating the baffle plate to avoid sliding out of the slide slot during lifting.

[0020] Furthermore, the grabbing mechanism also includes a fixing rod, which is pivotally connected to the top of the connecting rod, and a plug is provided at the free end of the fixing rod. The plug can be opened and closed and embedded in the gap at the pivotal connection between the grabbing rod and the connecting rod.

[0021] The plug block can be inserted into the gap at the pivot connection of the grab rod and the connecting rod to achieve rotation fixation, so that the grab rod and the connecting rod cannot rotate relative to each other.

[0022] Furthermore, a lifting claw is provided at the free end of the grabbing rod, and a flange is provided at the middle part.

[0023] The stator is grasped by the lifting claws and pressed down into place by the flanges.

[0024] Furthermore, the assembly tooling of the motor stator also includes a guide rod, the circumferential edge of the connecting plate is provided with a guide hole matching the guide rod, the guide rod is slidably connected in the guide hole, the lower end of the guide rod is provided with a thread, and the upper end is provided with a nut.

[0025] Adding a guide rod makes the stator's landing process smoother.

[0026] Furthermore, the connection plate is provided with a plurality of weight-reducing holes in the circumference thereof, so as to reduce the weight of the connection plate.

[0027] Furthermore, a clamping ring is provided on the portion of the grabbing rod protruding above the connecting plate, and a clamping groove matching with the clamping ring is provided on a corresponding position of the grabbing rod, and the clamping ring is clamped in the clamping groove.

[0028] A snap ring is provided to prevent the grab bar from sliding downward.

[0029] Compared with the prior art, the utility model has the following advantages:

[0030] The assembly tool for the motor stator provided by the utility model can complete the grasping, assembly and disassembly of the stator only by operating the parts above the connecting plate, so as to realize the smooth assembly of the stator in a narrow space and conveniently take out the stator after the assembly is completed; the whole tool has a simple structure and is easy to use. It is practical and low-cost, suitable for the scene of small-scale assembly, and solves the problems of difficulty in grasping and assembling the motor when the rotor is installed first and then the stator, and difficulty in taking out the tool after assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Attached Figure 1 This is a schematic diagram of the assembly tooling structure of the motor stator described in Example 1 of the utility model;

[0033] Attached Figure 2 This is an exploded schematic diagram of the assembly tooling structure of the motor stator described in Example 1 of the utility model;

[0034] Attached Figure 3 It is a schematic diagram and a bottom view of the gland structure of the utility model;

[0035] Attached Figure 4 This is a structural schematic diagram of the lifting block of the utility model;

[0036] Attached Figure 5 This is a schematic diagram of the stator being grasped by the assembly tool of the motor stator according to Embodiment 1 of the utility model;

[0037] Attached Figure 6 This is a schematic diagram of the assembly tooling structure of the motor stator described in Example 2 of the utility model;

[0038] Attached Figure 7 This is an exploded schematic diagram of the assembly tooling structure of the motor stator described in Example 2 of the utility model;

[0039] Attached Figure 8 This is a schematic diagram of assembling the stator using an assembly tool for the motor stator described in Example 2 of the utility model.

[0040] In the figure:

[0041] 1-lifting mechanism, 11-pressure cover, 111-through hole, 112-boss, 113-groove, 114-slide, 12-baffle, 13-limiting nut, 14-lifting block, 141-lifting claw, 142-lifting rod, 143-lifting ring mounting hole, 15-lifting ring, 2-connecting plate, 21-weight reduction hole, 22-connecting hole, 23-guide hole, 3-grabbing mechanism, 31-grabbing rod, 311-lifting claw, 312-flange, 313-clamping ring, 32-connecting rod, 33-fixing rod, 331-block, 4-guide rod, 41-nut, 5-statator. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0043] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two.

[0044] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0045] It should be understood that although the terms first, second, third, etc. may be used to describe in the embodiments of the present application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, without departing from the scope of the embodiments of the present application, the first may also be referred to as the second, and similarly, the second may also be referred to as the first.

[0046] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0047] It should also be noted that the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the commodity or device including the elements.

[0048] It should be particularly noted that any symbols and / or numbers in the specification that are not marked in the accompanying drawings are not drawing marks.

[0049] Example 1, please refer to Figure 1 As shown, in the process of installing the rotor first and then the stator 5, the assembly difficulties are mainly reflected in the following aspects: first, the rotor is magnetic, and the stator 5 is subjected to magnetic force during the installation process. In order to ensure the assembly quality, the stator 5 needs to be guided. As the stator 5 falls in due to gravity, the magnetic force it receives gradually increases, and the friction force also increases. After being installed to a certain position, an additional downward force needs to be given to the stator 5 to make it installed in place. It is necessary to ensure that the stator 5 is evenly stressed and the installation process is smooth; secondly, the stator 5 is difficult to grasp, and the stator 5 cannot be grasped from the inside. Try to grasp it from the bolt holes of the stator 5: use guide rods 4 for two holes, and pass copper wires through the other two holes to lift the stator 5, and cut the copper wires after it falls in; because the edge of the stator 5 is sharp, it will be cut when using multiple strands of thin copper wires, and some broken wires will fall into the shell. When using thick copper wires, the copper wires cannot be pulled out after the stator 5 falls in and is cut. If you choose to grab it from all sides, you can use the larger gaps around the oil pipe installation positions, but you need to grab the stator 5 before installation to provide a stable supporting force. After installation, you need to separate it from the stator 5 and take it out along the original route.

[0050] To this end, this embodiment provides an assembly tool for a motor stator, see Figures 2 to 4 As shown, the tooling includes a lifting mechanism 1, a grabbing mechanism 3 and a connecting plate 2. The lifting mechanism 1 is fixedly connected above the connecting plate 2, and the grabbing mechanism 3 is movably connected to the lifting mechanism 1 and the connecting plate 2.

[0051] Specifically, the connecting plate 2 is preferably disc-shaped, and three weight-reducing holes 21 are arranged around the center of the middle part of the connecting plate 2 to reduce the weight of the connecting plate 2. A gland 11 is fixedly connected to the center of the top surface of the connecting plate 2, which can be welded or bolted. The gland 11 is cylindrical, and a through hole 111 is opened at the center of the circle. A tubular boss 112 is arranged around the through hole 111 on the top surface of the gland 11. The outer side of the boss 112 is provided with a thread. The outer side of the boss 112 is provided with a circular baffle 12, and a limiting nut 13 is provided above the baffle 12. The limiting nut 13 is threadedly connected to the boss 112. The baffle 12 is arranged between the gland 11 and the limiting nut 13, and can be around. The boss 112 rotates, and the lower part of the pressure cover 11 is provided with a groove 113 which is radially outward from a circle, and a lifting block 14 is provided in the groove 113. The lifting block 14 includes at least three lifting claws 141 which cooperate with the groove 113. In this embodiment, three lifting claws 141 are provided, and the lifting claws 141 can slide up and down in the groove 113, but cannot slide or rotate in other directions. A lifting rod 142 is connected to the upper surface at the center where the three lifting claws 141 are combined. The lifting rod 142 is sleeved in the through hole 111 and the boss 112, and a lifting ring mounting hole 143 is provided at the top thereof, and a lifting ring 15 is threadedly connected through the lifting ring mounting hole 143.

[0052] Specifically, the grabbing mechanism 3 includes three groups of grabbing rods 31, connecting rods 32 and fixed rods 33, which correspond to three lifting claws 141 respectively. The connecting rod 32 is arranged above the connecting plate 2, one end of which is pivotally connected to the grabbing rod 31, and its free end is slidably connected to the pressure cover 11, and is located above the lifting claw 141 and contacts the lifting claw 141; a slide groove 114 matching the free end of the connecting rod 32 is arranged on the side wall of the pressure cover 11, and the slide groove 114 is arranged in the vertical direction, with an opening at the upper end and a lower end connected to the outer end of the groove 113; a connecting groove matching the upper end opening of the slide groove 114 is arranged on the baffle 12, and the free end of the connecting rod 32 can pass through the connecting groove and be installed in the slide groove 114.

[0053] A connection hole 22 matching the grabbing rod 31 is provided at the edge of the connecting plate 2. The connection end of the grabbing rod 31 passes through the connection hole 22 from the bottom of the connecting plate 2 and is connected to the connecting rod 32. A lifting claw 311 is provided at the free end of the grabbing rod 31, and a flange 312 is provided in the middle. The stator 5 is grabbed by the lifting claw 311, and the stator 5 is pressed down into place by the flange 312. A fixing rod 33 is pivotally connected above the connecting rod 32. A plug 331 is provided at the free end of the fixing rod 33. The plug 331 can be inserted into the gap at the pivot connection between the grabbing rod 31 and the connecting rod 32 to achieve rotation fixation, so that the grabbing rod 31 and the connecting rod 32 cannot rotate relative to each other. A snap ring 313 is provided on the part of the grabbing rod 31 protruding above the connecting plate 2 to prevent the grabbing rod 31 from sliding downward. A slot matching the snap ring 313 is provided on the grabbing rod 31, and the snap ring 313 is snapped into the slot.

[0054] When in use, the end of the connecting rod 32 connected to the slide groove 114 of the pressure cover 11 is taken out from the slide groove 114 through the upper end opening of the slide groove 114 and the connecting groove of the baffle 12, and then the connecting rod 32 is rotated to drive the grabbing rod 31 to rotate 90° around its own vertical axis. At this time, the lifting claw 311 of the grabbing rod 31 faces the tangent direction of the connecting plate 2, and the stator 5 can enter the area surrounded by the three grabbing rods 31 from the lower end of the tooling; when the stator 5 is located at the lifting claw When the connecting rod 32 is between the flange 311 and the middle part of the grabbing rod 31, the connecting rod 32 is reset to the slide groove 114. At this time, the lifting claw 311 faces the center of the connecting plate 2 and hooks the lower end of the stator 5. The rotating baffle 12 blocks the upper opening of the slide groove 114 to block the end of the connecting rod 32 from sliding out, and the plug 331 of the fixing rod 33 is placed in the gap at the connection between the connecting rod 32 and the grabbing rod 31. At this time, the connecting rod 32 and the grabbing rod 31 are relatively fixed. The tooling is lifted using the lifting ring 15, which drives the lifting block 14 to slide upward, and the lifting claw 141 of the lifting block 14 pushes one end of the connecting rod 32 upward to make it slide upward in the slide groove 114. At this time, the end of the connecting rod 32 that contacts the lifting claw 141 tilts upward. Since the blocking block 331 relatively fixes the connecting rod 32 and the grabbing rod 31, there is a gap between the connecting hole 22 of the connecting plate 2 and the grabbing rod 31, so the grabbing rod 31 will tilt inward and retract at this time to ensure stable grabbing.

[0055] After the stator 5 is grabbed, the tooling is moved as a whole to the top of the reducer for installation. After the stator 5 falls for a distance, it stops falling due to the increase of magnetic force and friction force. At this time, the connecting plate 2 is pressed down, and downward pressure is applied to the stator 5 through the flange 312 in the middle of the three grabbing rods 31 to assemble the stator 5 in place.

[0056] After the stator 5 is assembled in place, remove the plug 331, rotate the baffle 12 until the connecting groove is connected to the upper opening of the slide groove 114, then remove the connecting rod 32 from the slide groove 114, rotate it 90° again and take the tooling out of the motor housing, thus completing the assembly of the stator 5.

[0057] Example 2, please refer to Figure 6 As shown, due to the existence of magnetic force, the stator 5 is prone to tilt during the placement process and needs to be adjusted multiple times. Therefore, this embodiment adds a guide rod 4 on the basis of embodiment 1 to make the placement process of the stator 5 more stable.

[0058] Specifically, the edge of the connecting plate 2 is provided with four guide holes 23 corresponding to the positions of the bolt mounting holes of the stator 5, the lower end of the guide rod 4 is provided with a thread, and the upper end is provided with a nut 41. The guide rod 4 passes through the guide hole 23 and the bolt mounting hole on the stator 5 from the top of the connecting plate 2 and is threadedly connected to the threaded hole of the motor housing. The guide rod 4 can be fixed and removed by rotating the nut 41 at the upper end.

[0059] When in use, first grasp and stabilize the stator 5 as in Example 1; after the stator 5 is grasped, the four guide rods 4 are passed through the guide holes 23 and the bolt mounting holes of the stator 5, and then the tooling is moved as a whole to the top of the reducer, and the lower ends of the guide rods 4 are threadedly connected to the threaded holes of the motor housing. After the guide rods 4 are fixed, the stator 5 begins to fall. After the stator 5 falls for a distance, it stops falling due to the increase of magnetic force and friction force. At this time, the connecting plate 2 is pressed down, and downward pressure is applied to the stator 5 through the flanges 312 in the middle of the three grasping rods 31, so that the stator 5 is assembled in place.

[0060] After the stator 5 is assembled in place, first take out the guide rod 4, then take out the plug 331, rotate the baffle 12 until the connecting groove is connected to the upper opening of the slide groove 114, then take out the connecting rod 32 from the slide groove 114, rotate it 90° again and take the tooling out of the motor housing, thus completing the assembly of the stator 5.

[0061] The motor stator assembly tooling provided in the above two embodiments can complete the grasping and assembly of the stator by operating the parts above the connecting plate, so as to realize the stable assembly of the stator in a small space; the whole tooling has a simple structure, is easy to use, is practical and low-cost, and is suitable for small-scale assembly scenarios. This tooling can also be used for disassembly of the stator, and the above steps can be reversed.

[0062] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An assembly tool for a motor stator, characterized in that: It comprises a connecting plate (2), a lifting mechanism (1) is fixedly connected to the top of the connecting plate (2), and a grabbing mechanism (3) is movably connected to the lifting mechanism (1) and the connecting plate (2); The lifting mechanism (1) comprises a pressure cover (11), the lower end surface of the pressure cover (11) is evenly provided with grooves (113), the outer side wall of the pressure cover (11) at the outer end of each groove (113) is provided with a sliding groove (114), a lifting block (14) is accommodated in the groove (113), and the lifting block (14) is slidably connected to the pressure cover (11); The top surface of the connecting plate (2) is fixedly connected to the lower surface of the gland (11), and the edge of the connecting plate (2) is provided with a connecting hole (22) that matches the grabbing mechanism (3); One end of the grabbing mechanism (3) is arranged above the lifting block (14) and is raised and lowered synchronously with the lifting block (14). One end of the grabbing mechanism (3) is slidably connected to the slide groove (114), and the other end of the grabbing mechanism (3) passes through the connecting hole (22) and is slidably connected to the bottom of the connecting plate (2).

2. The motor stator assembly tool according to claim 1, characterized in that: The grabbing mechanism (3) comprises a connecting rod (32), wherein the connecting rod (32) is arranged above the connecting plate (2), one end of the connecting rod (32) is pivotally connected to a grabbing rod (31), the free end of the connecting rod (32) is slidably connected to the pressure cover (11), and is placed on the lifting block (14) and contacts the lifting block (14); the connecting end of the grabbing rod (31) passes through the connecting hole (22) from below the connecting plate (2) and is pivotally connected to the connecting rod (32), and a clearance fit is formed between the connecting hole (22) and the grabbing rod (31).

3. The motor stator assembly tool according to claim 2, characterized in that: The pressure cover (11) is cylindrical and has a through hole (111) at the center of the circle. The lower part of the pressure cover (11) is provided with a groove (113) extending radially outward from the center of the circle. The lifting block (14) includes a lifting claw (141) that matches the groove (113). The free end of the connecting rod (32) is placed on the lifting claw (141) and contacts the lifting claw (141). A lifting rod (142) is connected to the upper surface at the center of the lifting block (14). The lifting rod (142) is slidably sleeved inside the through hole (111). The top of the lifting rod (142) is threadedly connected to a lifting ring (15).

4. The motor stator assembly tool according to claim 3, characterized in that: A tubular boss (112) is provided on the top surface of the gland (11) around the through hole (111), a thread is provided on the outer side of the boss (112), a baffle (12) is sleeved on the outer side of the boss (112), a limiting nut (13) is provided above the baffle (12), the limiting nut (13) is threadedly connected to the boss (112), the baffle (12) is arranged between the gland (11) and the limiting nut (13), and is rotatably sleeved on the outer side of the boss (112).

5. The motor stator assembly tool according to claim 4, characterized in that: A slide groove (114) matching with the free end of the connecting rod (32) is arranged on the side wall of the pressure cover (11), and the slide groove (114) is arranged in the vertical direction. The upper end of the slide groove (114) is open, and the lower end is connected with the outer end of the groove (113). A connecting groove matching with the upper end opening of the slide groove (114) is arranged on the baffle (12), and the free end of the connecting rod (32) is slidably connected with the slide groove (114).

6. The motor stator assembly tool according to claim 2, characterized in that: The grabbing mechanism (3) further comprises a fixing rod (33), the fixing rod (33) being pivotally connected to the top of the connecting rod (32), a plug (331) being provided at the free end of the fixing rod (33), the plug (331) being openable and closable and embedded in a gap between the grabbing rod (31) and the connecting rod (32) being pivotally connected.

7. The motor stator assembly tool according to claim 2, characterized in that: The free end of the grabbing rod (31) is provided with a lifting claw (311), and the middle part is provided with a flange (312).

8. The motor stator assembly tool according to any one of claims 1 to 7, characterized in that: The assembly tool for the motor stator also includes a guide rod (4), the circumferential edge of the connecting plate (2) is provided with a guide hole (23) matching the guide rod (4), the guide rod (4) is slidably connected in the guide hole (23), the lower end of the guide rod (4) is provided with a thread, and the upper end is provided with a nut (41).

9. The motor stator assembly tool according to claim 1, characterized in that: The connection plate (2) is provided with a plurality of weight-reducing holes (21) in the circumferential direction.

10. The motor stator assembly tool according to claim 2, characterized in that: The portion of the grabbing rod (31) protruding above the connecting plate (2) is provided with a snap ring (313), and a snap groove matching the snap ring (313) is provided at a corresponding position of the grabbing rod (31), and the snap ring (313) is snapped into the snap groove.

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