Stator positioning and fixing tool

Abstract

The utility model discloses a stator positioning and fixing tool, which relates to the technical field of motor assembly and comprises an assembly table, a casing seat and a stator seat, the casing seat and the stator seat are both mounted on the assembly table, and the stator seat is mounted on one side of the casing seat and is coaxial with the casing seat. The diameter of the casing seat is larger than that of the stator seat. During assembly, the stator and the heated casing are respectively sleeved on the outer sides of the stator seat and the casing seat, the casing is pushed to move towards the stator, and the casing seat and the stator seat are coaxially arranged, so that the casing is overlapped with the axis of the stator, and the problem of alignment deviation of the casing and the stator in the movement process of the casing seat or the stator seat is solved; therefore, the casing can be accurately aligned and sleeved on the stator. And after the casing is cooled, the casing shrinks and tightly sleeves the outer side of the stator, so that the reject ratio of assembly is greatly reduced, and meanwhile, the stability of assembly quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor assembly, and particularly relates to a stator positioning and fixing tooling. Background Art

[0002] The stator of a motor is made by winding multiple coils on an iron core, and its main function is to generate a magnetic field. The motor housing is made of materials such as cast iron or aluminum alloy, and its main function is to protect the internal components of the motor. In the production process of the motor, the assembly of the stator and the housing is an essential link, and the tightness and sealing performance of the assembly of the stator and the housing are crucial for the performance and efficiency of the motor.

[0003] In the prior art, when assembling the stator and the housing, an assembly tooling adapted to the sizes of the stator and the housing is usually required. The assembly tooling includes an assembly table, a stator fixture, a housing fixture, and a driving member. Among them, the stator fixture and the housing fixture are respectively arranged at two sides of the assembly table at intervals. During assembly, the stator and the heated housing are respectively placed on the stator fixture and the housing fixture, and the driving member is used to drive the housing fixture and the stator fixture to approach each other, so as to drive the housing to be sleeved outside the stator.

[0004] Although this method can achieve the purpose of pressing the stator into the housing, since the housing fixture and the stator fixture are installed on two sides of the assembly table, it is inevitable that the axes of the housing fixture and the stator fixture do not coincide, resulting in inaccurate alignment between the housing and the stator. At the same time, during the movement of the housing fixture, it will further affect the alignment accuracy of the housing and the stator, resulting in the housing being unable to be sleeved outside the stator, and the assembly defect rate is relatively high. Summary of the Utility Model

[0005] The main purpose of the utility model is to propose a stator positioning and fixing tooling, aiming to solve the problem of inaccurate alignment between the housing and the stator when using the existing assembly tooling for the assembly of the housing and the stator.

[0006] To achieve the above purpose, the utility model proposes a stator positioning and fixing tooling, which includes: an assembly table, a housing seat, and a stator seat. The housing seat is installed on the assembly table and is used for placing the housing; the stator seat is installed on the assembly table, is installed on one side of the housing seat, and is coaxially arranged with the housing seat, and the diameter of the housing seat is larger than that of the stator seat, and the stator seat is used for placing the stator.

[0007] The heated housing is sleeved outside the housing seat, the stator is sleeved outside the stator seat, and the housing is pushed towards the stator to move, so that the housing is completely sleeved on the stator. After the housing cools down, the housing is tightly sleeved outside the stator.

[0008] In one embodiment of the present utility model, the stator positioning and fixing tool further includes a driving member, the driving member is installed on the assembly table, the stator seat has a clamping portion, and the driving member is drivingly connected to the clamping portion;

[0009] The stator is sleeved on the outer side of the stator seat, and the driving member drives the clamping part to fix the stator.

[0010] In one embodiment of the utility model, the stator positioning and fixing tool further includes a top column, the stator seat and the housing seat are both in the shape of a circular tube with coincident axes, one end of the top column passes through the stator seat and the housing seat and is drivingly connected to the driving member, and the other end is an extended end, and the extended end extends from a side of the stator seat away from the housing seat;

[0011] The clamping portion is located at one end of the stator seat away from the housing seat, and the end of the clamping portion away from the housing seat can be elastically deformed relative to the other end, and the longitudinal section of the extended end gradually expands in a direction away from the clamping portion;

[0012] The driving member drives the top column to move so that the protruding end retreats into and squeezes the clamping portion, and the end of the clamping portion away from the housing seat is stretched open and pressed against the inner wall of the stator to fix the stator.

[0013] In one embodiment of the present utility model, the clamping portion includes at least two clips, which are spaced apart and distributed along the circumference of the stator seat;

[0014] The driving member drives the top column to move, and the clip is stretched open and pressed against the inner wall of the stator.

[0015] In one embodiment of the utility model, the gap between every two adjacent clips is a spacing groove, and the spacing groove is extended along the axial direction of the stator seat. A stress release hole is opened on the surface of the stator seat, and the stress release hole is connected to one end of the spacing groove close to the casing seat.

[0016] In an embodiment of the utility model, a positioning pin is protruding from the surface of the stator seat, the positioning pin is located between the clamping portion and the housing seat, the stator is sleeved on the stator seat, and the positioning pin is limited to the stator slot of the stator.

[0017] In one embodiment of the utility model, the assembly platform includes a bottom plate and a side plate connected vertically, and one end of the housing seat away from the stator seat is mounted on the side plate;

[0018] The assembly table further includes a pusher, which is movably mounted on the bottom plate. The pusher is pushed to move relative to the bottom plate along the axial direction of the casing seat, so as to drive the casing to move towards the stator.

[0019] In an embodiment of the present invention, the pusher includes a pushing plate and a handle. The pushing plate is provided with a sliding hole, and the sliding hole penetrates through the casing seat, so that the pushing plate is sleeved on the outer periphery of the casing seat. The pushing plate is movably mounted on the bottom plate, and the handle is arranged on the side of the pushing plate away from the bottom plate.

[0020] In an embodiment of the present invention, the pusher further includes a slider. The slider is arranged on the side of the pushing plate facing the bottom plate. A slide rail is provided on the surface of the bottom plate, and the slide rail extends along the axial direction of the casing seat. The slider is slidably matched with the slide rail, so that the pusher can slide relative to the bottom plate.

[0021] In an embodiment of the present invention, a blocking block is provided at one end of the slide rail away from the side plate, and the blocking block is used to block the pusher from sliding out of the slide rail.

[0022] The technical solution of the present invention provides a stator positioning and fixing tooling for the fixed assembly of a stator and a casing. The stator positioning and fixing tooling includes an assembly table, a casing seat and a stator seat. The casing seat and the stator seat are both mounted on the assembly table, and the stator seat is mounted on one side of the casing seat and is coaxially arranged with the casing seat. The diameter of the casing seat is larger than the diameter of the stator seat. During assembly, the stator and the heated casing are respectively sleeved on the outer sides of the stator seat and the casing seat, and the casing is pushed to move towards the stator. Since the casing seat and the stator seat are coaxially arranged, the axes of the casing and the stator coincide. Therefore, during the movement of the casing, there will be no situation where the axes of the casing seat and the stator seat do not coincide, and the casing and the stator are misaligned during the movement of the casing seat or the stator seat, so that the casing can be accurately aligned and sleeved on the stator. After the casing cools, the casing shrinks and tightly sleeves on the outside of the stator, thereby greatly reducing the defective rate of the assembly and improving the stability of the assembly quality at the same time. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0024] Figure 1 It is a schematic structural diagram of the stator positioning and fixing tooling provided by the present invention;

[0025] Figure 2 is Figure 1 The partial enlarged view at position A in

[0026] Figure 3 is Figure 1 the top view of

[0027] Figure 4 is Figure 3 the sectional view along B - B.

[0028] Explanation of the reference numerals in the drawings:

[0029] 10. Assembly table; 11. Bottom plate; 111. Slide rail; 111a. Blocking block; 12. Side plate; 13. Pushing member; 131. Pushing plate; 131a. Sliding hole; 132. Handle; 133. Slide block; 134. Adapter plate; 20. Housing seat; 30. Stator seat; 31. Clamping portion; 311. Clamping piece; 312. Spacing groove; 32. Stress relief hole; 33. Positioning pin; 40. Driving member; 50. Jacking column; 51. Extended end; 60. Stator; 61. Stator slot; 70. Housing.

[0030] The realization of the object, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0032] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0034] The present utility model provides a stator positioning and fixing tooling.

[0035] Combined Figure 1 As shown, in an embodiment of the present utility model, the stator positioning and fixing tooling includes: an assembly table 10, a housing seat 20, and a stator seat 30. The housing seat 20 is installed on the assembly table 10 and is used to place the housing 70; the stator seat 30 is installed on one side of the housing seat 20 and is coaxially arranged with the housing seat 20, and the diameter of the housing seat 20 is larger than that of the stator seat 30. The stator seat 30 is used to place the stator 60;

[0036] The heated housing 70 is sleeved outside the housing seat 20, the stator 60 is sleeved outside the stator seat 30, and the housing 70 is pushed towards the stator 60 to make the housing 70 completely sleeved on the stator 60. After the housing 70 cools down, the housing 70 is tightly sleeved outside the stator 60.

[0037] The stator 60 and the housing 70 are important components of the motor. The stator 60 is composed of a stator core, a stator winding, and a frame. Its main function is to generate a magnetic field. The housing 70 is made of materials such as cast iron or aluminum alloy, and its main function is to protect the internal structure of the motor. The stator 60 and the housing 70 are assembled together to form the core part of the motor.

[0038] In this embodiment, the assembly table 10 is used to fix and install the housing seat 20, the stator seat 30, and other components related to the assembly, and has good load-bearing capacity, providing stable support for the assembly of the stator 60 and the housing 70.

[0039] The housing base 20 is made of metal materials such as aluminum alloy and copper, so that the housing base 20 has strong strength, hardness and compressive performance. A flange is provided at one end of the housing base 20 away from the stator base 30. The housing base 20 and the flange can be of an integrally formed structure, or can be tightly connected by means such as welding and threaded connection. A flange is provided at one end of the stator base 30 close to the housing base 20. The stator base 30 and the flange can be of an integrally formed structure, or can be tightly connected by means such as welding and threaded connection. Further, the housing base 20 and the stator base 30 can be of an integrally formed structure. In this case, the axial deviation between the housing base 20 and the stator base 30 can be reduced, or can be connected by welding or threading the flange on one side of the stator base 30.

[0040] During assembly, the stator 60 and the heated housing 70 are respectively sleeved on the outer sides of the stator base 30 and the housing base 20, and the housing 70 is pushed to move towards the stator 60. Since the stator base 30 and the housing base 20 are coaxially arranged, the axes of the stator sleeved on the stator base 30 and the housing sleeved on the housing base 20 coincide. Compared with the existing solution that requires the housing base 20 to move towards the stator base 30, the present application reduces the situation of misalignment between the housing 70 and the stator 60 during the movement of the housing base 20 to a certain extent, so that the housing 70 can be accurately aligned and sleeved on the stator 60. After the housing 70 cools, the housing 70 shrinks and tightly sleeves on the outer side of the stator 60, thus greatly reducing the defective rate of assembly and improving the stability of assembly quality at the same time.

[0041] Combined Figure 1 and Figure 2 As shown in the figure, in an embodiment of the present utility model, the stator positioning and fixing tooling further includes a driving member 40. The driving member 40 is installed on the assembly table 10. The stator base 30 has a clamping portion 31. The driving member 40 is drivingly connected to the clamping portion 31. The stator 60 is sleeved on the outer side of the stator base 30. The driving member 40 drives the clamping portion 31 to fix the stator 60.

[0042] In this embodiment, the driving member 40 can be a cylinder, a motor or a hydraulic press. The clamping portion 31 can be a clamping jaw or a clamping piece 311. The driving member 40 can drive the clamping jaw or the clamping piece 311 to open and close to press against the inner wall of the stator 60, so as to fix the stator 60. Or the clamping portion 31 is a structure in which one end can elastically deform relative to the other end. The driving member 40 drives one end of the clamping portion 31 to elastically deform and press against the inner wall of the stator 60, so as to fix the stator 60.

[0043] In other embodiments of the present application, the fixation between the stator 60 and the stator seat 30 can adopt a solution of combining the driving member 40 with a vacuum adsorption suction cup or combining the driving member 40 with a silicone airbag. It is also possible that the driving member 40 is not provided and only a rubber ring interference fit or a snap-on fixation solution is adopted. As long as the effect of fixing the stator 60 and the stator seat 30 can be achieved, it falls within the protection scope of the present utility model.

[0044] Combination Figure 1 , Figure 2 and Figure 4 As shown, in one embodiment of the utility model, the stator positioning and fixing tool also includes a top column 50, the stator seat 30 and the housing seat 20 are both circular tubes with coincident axes, one end of the top column 50 passes through the stator seat 30 and the housing seat 20 and is connected to the driving member 40, and the other end is a protruding end 51, and the protruding end 51 protrudes from the side of the stator seat 30 away from the housing seat 20; the clamping portion 31 is located at the end of the stator seat 30 away from the housing seat 20, and the end of the clamping portion 31 away from the housing seat 20 can be elastically deformed relative to the other end, and the longitudinal section of the protruding end 51 gradually expands in the direction away from the clamping portion 31; the driving member 40 drives the top column 50 to move, so that the protruding end 51 retreats into and squeezes the clamping portion 31, and the end of the clamping portion 31 away from the housing seat 20 is stretched and pressed against the inner wall of the stator 60 to fix the stator 60. The top column 50 is a truncated cone structure, usually made of alloy steel or stainless steel and other materials, with high strength and wear resistance.

[0045] In other embodiments of the present application, the top column 50 and the clamping portion 31 can be replaced by a spreading assembly, which includes two supporting rods and two clamping claws arranged opposite to each other, one end of each supporting rod is drivingly connected to the driving member 40, and the other end is connected to a clamping claw. The driving member 40 drives the two supporting rods to drive the two opposite clamping claws to open and press against the inner wall of the stator 60 to fix the stator 60.

[0046] Combination Figure 1 , Figure 2 and Figure 4 As shown, in one embodiment of the present invention, the clamping portion 31 includes at least two clips 311 , which are spaced apart along the circumference of the stator seat 30 ; the driving member 40 drives the top column 50 to move, and the clips 311 are stretched open and pressed against the inner wall of the stator 60 .

[0047] In this embodiment, the clips 311 are generally made of a metal material with flexibility, toughness and wear resistance. Each clip 311 has the same size and shape, and the interval between each two clips 311 is the same, so that the pressures at different positions of the inner wall of the stator 60 are the same, so as to avoid deformation of the inner wall of the stator 60 caused by different pressures at different positions of the inner wall of the stator 60, thereby improving the stability of the assembly quality.

[0048] Combination Figure 1 and Figure 2 As shown, in one embodiment of the present invention, the gap between every two adjacent clips 311 is a spacing groove 312, and the spacing groove 312 is extended along the axial direction of the stator seat 30. A stress release hole 32 is opened on the surface of the stator seat 30, and the stress release hole 32 is connected to one end of the spacing groove 312 close to the casing seat 20.

[0049] In this embodiment, each spacing groove 312 is on the same axis as a stator groove 61. When the stator 60 is sleeved on the stator seat 30, each spacing groove 312 corresponds to a stator groove 61, so that both sides of each clip 311 just press against the inner wall of the stator 60, further evenly distributing the pressure on different positions of the inner wall of the stator 60 and improving the assembly quality. The spacing groove 312 provided between two adjacent clips 311 can also facilitate the deformation of the clip 311 after being squeezed by the top column 50.

[0050] After the clip 311 is stretched open by the extended end 51, the clip 311 will be subjected to relatively concentrated stress at one end close to the housing base 20 and close to the spacing groove 312. Therefore, the stress release hole 32 is provided on the surface of the stator base 30 to reduce the stress concentration at the above position and avoid structural cracking caused by concentrated stress. Furthermore, the stress release hole 32 is set as a circular hole, which can disperse the stress more evenly, reduce the stress concentration, and improve the reliability and stability of the overall structure.

[0051] Combination Figure 1 and Figure 2 As shown, in one embodiment of the utility model, a positioning pin 33 is protruding from the surface of the stator seat 30 , and the positioning pin 33 is located between the clamping portion 31 and the housing seat 20 . The stator 60 is sleeved on the stator seat 30 , and the positioning pin 33 is limited in the stator slot 61 of the stator 60 .

[0052] In this embodiment, the shape of the positioning pin 33 can be a straight rod or a cone. The number of the positioning pins 33 can be one or more. When there is one positioning pin 33, it can be set in the axial direction of one of the spacing slots 312; when there are multiple positioning pins 33, they are respectively set in the axial direction of each spacing slot 312. Therefore, when the positioning pin 33 is limited in the stator slot 61, the stator slot 61 is also on the same axis as the spacing slot 312. In addition, when the stator 60 is sleeved on the stator seat 30, the positioning pin 33 is limited in the stator slot 61 to limit the rotation of the stator 60.

[0053] Combination Figure 1 As shown, in one embodiment of the present utility model, the assembly platform 10 includes a bottom plate 11 and a side plate 12 connected vertically, and one end of the housing base 20 away from the stator base 30 is installed on the side plate 12;

[0054] The assembly table 10 further includes a pusher 13, which is movably mounted on the bottom plate 11. The pusher 13 is moved relative to the bottom plate 11 along the axial direction of the housing base 20 to drive the housing 70 to move towards the stator 60.

[0055] In this embodiment, the bottom plate 11 and the side plate 12 are connected by welding, plugging or other means. The side plate 12 and the flange at one end of the housing base 20 away from the stator base 30 are connected by welding, threaded connection or other means, so that one end of the housing base 20 away from the stator base 30 is mounted on the side plate 12.

[0056] The pusher 13 can be arranged on one side of the housing base 20 and abuts against a part of the end face of the housing base 20. It can also be arranged around the outer periphery of the housing base 20. At this time, the contact area between the pusher 13 and the housing 70 is larger, so that the force exerted by the pusher 13 on the surface of the housing 70 is uniform and the operation is more labor-saving.

[0057] Combined with Figure 1 As shown, in an embodiment of the present utility model, the pusher 13 includes a push plate 131 and a handle 132. The push plate 131 is provided with a sliding hole 131a, and the sliding hole 131a passes through the housing base 20 so that the push plate 131 is sleeved on the outer periphery of the housing base 20. The push plate 131 is movably mounted on the bottom plate 11, and the handle 132 is arranged on the side of the push plate 131 away from the bottom plate 11.

[0058] In this embodiment, the setting of the handle 132 makes it more labor-saving to push the push plate 131, and at the same time, it is more convenient to control the push plate 131.

[0059] The diameter of the sliding hole 131a is slightly larger than the diameter of the outer periphery of the housing base 20, so that there is a certain gap between the push plate 131 and the housing base 20, reducing the friction and resistance between the push plate 131 and the housing base 20, thereby reducing the wear of the push plate 131 and the housing base 20 and extending the service life of the assembly tooling.

[0060] The push plate 131 is sleeved on the outer periphery of the housing base 20. When the housing 70 is sleeved on the outside of the housing base 20, the surface of the push plate 131 is attached to the end face of the housing 70, so that the push plate 131 has a large contact area with the housing 70. When the handle 132 is pushed to drive the push plate 131 to push the housing 70, the thrust received at different positions of the end face of the housing 70 is uniform, improving the accuracy of the assembly alignment between the housing 70 and the stator 60.

[0061] Combined with Figure 1 and Figure 4As shown, in one embodiment of the present invention, the push member 13 also includes a slider 133, which is disposed on the side of the push plate 131 facing the bottom plate 11. A slide rail 111 is disposed on the surface of the bottom plate 11, and the slide rail 111 is extended along the axial direction of the housing base 20. The slider 133 slidably cooperates with the slide rail 111 so that the push member 13 can slide relative to the bottom plate 11.

[0062] In this embodiment, a slide groove is recessed on one side of the slider 133 facing the slide rail 111, and the slide rail 111 is embedded in the slide groove, so that the pusher 13 can slide relative to the bottom plate 11 along the preset direction of the slide rail 111. A square adapter plate 134 is provided on the end surface of the slider 133 away from the slide groove, which can facilitate the installation of the pusher plate 131 and the slider 133 and improve the structural stability of the pusher 13.

[0063] Combination Figure 1 and Figure 4 As shown, in one embodiment of the present invention, a blocking block 111 a is provided at one end of the slide rail 111 away from the side plate 12 , and the blocking block 111 a is used to prevent the pusher 13 from sliding out of the slide rail 111 .

[0064] In this embodiment, the blocking block 111a is rectangular or trapezoidal in shape and is made of materials such as rubber or aluminum alloy. Rubber has good elasticity and can effectively absorb impact force and reduce damage when the adapter plate 134 collides with the blocking block 111a. Aluminum alloy has advantages such as lightness and corrosion resistance. Setting the blocking block 111a at the end of the slide rail 111 can effectively limit the sliding range of the pusher 13 and prevent the pusher 13 from sliding out of the slide rail 111.

[0065] In other embodiments of the present application, anti-collision pads or buffer pads may be used to replace the blocking block 111 a , and as long as the effect of blocking and limiting the pushing member 13 can be achieved, they belong to the protection scope of the present utility model.

[0066] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A stator positioning and fixing tool, used for fixing and assembling a stator and a housing, characterized in that: The stator positioning and fixing tool comprises: Assembly table; A housing seat, the housing seat is mounted on the assembly table, and the housing seat is used to place the housing; A stator seat, the stator seat is installed on one side of the casing seat and is coaxially arranged with the casing seat, the diameter of the casing seat is larger than the diameter of the stator seat, and the stator seat is used to place the stator; The housing is pushed to move toward the stator so that the housing is sleeved on the stator.

2. The stator positioning and fixing tool as claimed in claim 1, characterized in that: The stator positioning and fixing tool further includes a driving member, which is mounted on the assembly platform, and the stator seat has a clamping portion, and the driving member is drivingly connected to the clamping portion; The stator is sleeved on the outer side of the stator seat, and the driving member drives the clamping part to fix the stator.

3. The stator positioning and fixing tool as claimed in claim 2, characterized in that: The stator positioning and fixing tool also includes a top column, the stator seat and the housing seat are both in the shape of a circular tube with their axes coinciding, one end of the top column passes through the stator seat and the housing seat and is drivingly connected to the driving member, and the other end is an extended end, and the extended end extends from a side of the stator seat away from the housing seat; The clamping portion is located at one end of the stator seat away from the housing seat, and the end of the clamping portion away from the housing seat can be elastically deformed relative to the other end, and the longitudinal section of the extended end gradually expands in a direction away from the clamping portion; The driving member drives the top column to move so that the protruding end retreats into and squeezes the clamping portion, and the end of the clamping portion away from the housing seat is stretched open and pressed against the inner wall of the stator to fix the stator.

4. The stator positioning and fixing tool as claimed in claim 3, characterized in that: The clamping portion includes at least two clamping pieces, which are spaced apart and distributed along the circumference of the stator seat; The driving member drives the top column to move, and the clip is stretched open and pressed against the inner wall of the stator.

5. The stator positioning and fixing tool as claimed in claim 4, characterized in that: The gap between every two adjacent clips is a spacing groove, and the spacing groove is extended along the axial direction of the stator seat. A stress release hole is opened on the surface of the stator seat, and the stress release hole is connected with one end of the spacing groove close to the casing seat.

6. The stator positioning and fixing tool as claimed in claim 5, characterized in that: A positioning pin is convexly provided on the surface of the stator seat, and the positioning pin is located between the clamping portion and the housing seat. The stator is sleeved on the stator seat, and the positioning pin is limited to be located in the stator slot of the stator.

7. The stator positioning and fixing tool according to any one of claims 1 to 6, characterized in that: The assembly platform comprises a bottom plate and a side plate connected vertically, and one end of the housing seat away from the stator seat is mounted on the side plate; The assembly station further includes a pusher, which is movably mounted on the bottom plate and pushes the pusher to move relative to the bottom plate along the axial direction of the housing seat to drive the housing to move toward the stator.

8. The stator positioning and fixing tool as claimed in claim 7, characterized in that: The pushing member includes a pushing plate and a handle. The pushing plate is provided with a sliding hole. The sliding hole passes through the casing seat so that the pushing plate is sleeved on the outer periphery of the casing seat. The pushing plate is movably installed on the bottom plate. The handle is arranged on a side of the pushing plate away from the bottom plate.

9. The stator positioning and fixing tool as claimed in claim 8, characterized in that: The push member also includes a slider, which is arranged on the side of the push plate facing the bottom plate. The surface of the bottom plate is provided with a slide rail, and the slide rail is extended along the axial direction of the casing seat. The slider is slidably matched with the slide rail so that the push member can slide relative to the bottom plate.

10. The stator positioning and fixing tool according to claim 9, characterized in that: A blocking block is provided at one end of the slide rail away from the side plate, and the blocking block is used to prevent the pushing member from sliding out of the slide rail.

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