Stator turning device

Abstract

The present invention discloses a stator turning device, which relates to the field of mechanical processing and manufacturing technology. The main body is sleeved on the outside of the pull rod. The main body includes a first part and a second part connected to the first part. The tensioner is sleeved on the outer periphery of the first part. The contact member is sleeved on the outer periphery of the tensioner. The contact member is used to contact the inner circle of the stator. The positioning member is sleeved on the outer periphery of the second part. The positioning member is used to cooperate with the end face of the stator. An elastic member is provided between the positioning member and the second part. The pull rod is connected to a driving member so that the pull rod can reciprocate along the radial direction of the main body under the drive of the driving member. The provision of the elastic member can increase the restraining force between the positioning member and the second part, and then increase the axial restraining force of the stator, so that the machine tool power head can slowly correct the position of the stator being processed during the movement, and finally match it with the main body to improve the processing accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing and manufacturing, and in particular to a stator turning device. Background Art

[0002] At present, most motor stator turning tools only have the function of loosening and tightening. The precision of the processed products depends entirely on the state of the products before processing, which is easily affected by external factors. Before stator processing, the core is easily deformed due to welding, and the residual paint residue from varnishing can easily affect the outer dimensions of the core, resulting in inaccurate positioning during subsequent external cylindrical processing, making the concentricity of the processed products large, which is not conducive to assembly and the performance of the whole machine. Summary of the invention

[0003] 1. Technical problem to be solved by the invention

[0004] In view of the technical problem of inaccurate positioning during stator outer circle machining, the present invention provides a stator turning device, which can slowly correct the position of the machined stator and finally match it with the body to improve the machining accuracy.

[0005] 2. Technical solution

[0006] To solve the above problems, the technical solution provided by the present invention is: a stator turning device, characterized in that it includes a main body, a tensioner, a pull rod, a contact piece and a positioning piece, the main body is sleeved on the outside of the pull rod, the main body includes a first part and a second part connected to the first part, the tensioner is sleeved on the outer periphery of the first part, the contact piece is sleeved on the outer periphery of the tensioner, the contact piece is used to contact the inner circle of the stator, the positioning piece is sleeved on the outer periphery of the second part, the positioning piece is used to cooperate with the end face of the stator, an elastic piece is provided between the positioning piece and the second part, and the pull rod is connected to a driving piece so that the pull rod can reciprocate along the radial direction of the main body under the drive of the driving piece.

[0007] Optionally, the first portion and the tensioning member are tapered, and the taper of the first portion is in the opposite direction to the taper of the tensioning member.

[0008] Optionally, the body has a cavity for the pull rod to pass through.

[0009] Optionally, one end of the pull rod has a limit block, the other end of the pull rod is connected to a driving member, and the limit block abuts against an end of the first part away from the second part.

[0010] Optionally, the diameter of the limit block is larger than the diameter of the cavity.

[0011] Optionally, the contact member is provided with a plurality of mounting grooves along the circumferential direction, and an anti-slip ring is provided in the mounting groove.

[0012] Optionally, the anti-slip ring is made of rubber, silicone or plastic.

[0013] Optionally, the elastic member is a spring.

[0014] Optionally, the first part and the second part are an integrated structure.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0017] (1) In the stator turning device proposed in the embodiment of the present application, the positioning member fixes the stator on the outer periphery of the contact member. When the pull rod moves toward the second part under the drive of the driving member, the first part is forced to press the tension member outward, and the tension member presses the contact member to cause the contact member to expand outward, so that the stator turning device and the inner circle of the stator are closely matched to prevent the stator from slipping off the turning device. The setting of the elastic member can increase the restraining force between the positioning member and the second part, and then increase the axial restraining force of the stator, so that the machine tool power head can slowly correct the position of the stator being processed during the movement process, and finally match it with the main body to improve the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a stator turning device proposed in an embodiment of the present invention.

[0019] Figure 2 A cross-sectional view of a stator turning device according to an embodiment of the present invention.

[0020] The marks in the drawings are: 1, main body; 11, first part; 12, second part; 2, tensioner; 3, pull rod; 31, limit block; 4, contact member; 5, positioning member; 6, elastic member; 7, driving member; 8, stator. DETAILED DESCRIPTION

[0021] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.

[0022] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the invention are shown in the accompanying drawings. The words "first", "second", etc. described in the present invention are set for the convenience of describing the technical solution of the present invention, and have no specific limiting effect. They are all general references and do not constitute a limiting effect on the technical solution of the present invention. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Multiple technical solutions in the same embodiment, and multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions without contradictions or conflicts, all of which are within the scope of protection required by the present invention.

[0023] Example 1

[0024] Combined with Figure 1-2The stator turning device of this embodiment includes a main body 1, a tensioner 2, a pull rod 3, a contact member 4 and a positioning member 5. The main body 1 is sleeved on the outside of the pull rod 3. The main body 1 includes a first part 11 and a second part 12 connected to the first part 11. The tensioner 2 is sleeved on the outer periphery of the first part 11. The contact member 4 is sleeved on the outer periphery of the tensioner 2. The contact member 4 is used to contact the inner circle of the stator 8. The positioning member 5 is sleeved on the outer periphery of the second part 12. The positioning member 5 is used to cooperate with the end face of the stator 8. An elastic member 6 is provided between the positioning member 5 and the second part 12. The pull rod 3 is connected to a driving member 7 so that the pull rod 3 can reciprocate radially along the main body 1 under the drive of the driving member 7. The positioning member 5 fixes the stator 8 on the outer periphery of the contact member 4. When the pull rod 3 moves toward the direction of the second part 12 under the drive of the driving member 7, the first part 11 is forced to squeeze the tension member 2 outward, and the tension member 2 squeezes the contact member 4 to make the contact member 4 expand outward, so that the stator turning device and the inner circle of the stator 8 are closely matched to prevent the stator 8 from slipping off the turning device. The setting of the elastic member 6 can increase the restraining force between the positioning member 5 and the second part 12, and then increase the axial restraining force of the stator 8, so that the machine tool power head can slowly correct the position of the stator 8 being processed during the movement process, and finally match it with the main body 1 to improve the processing accuracy.

[0025] Example 2

[0026] Combined with Figure 1-2 Compared with the technical solution of embodiment 1, the stator turning device of this embodiment can be improved as follows: the first part 11 and the tension member 2 are tapered, and the taper of the first part 11 is opposite to the taper direction of the tension member 2. The taper fit makes the first part 11 and the tension member 2 fit more tightly.

[0027] Example 3

[0028] Combined with Figure 1-2 Compared with the technical solutions of Embodiment 1 or 2, the stator turning device of this embodiment can be improved as follows: the main body 1 has a cavity for the pull rod 3 to pass through.

[0029] Example 4

[0030] Combined with Figure 1-2 The stator turning device of this embodiment can be improved as follows compared with any one of the technical solutions of embodiments 1-3: one end of the pull rod 3 has a limit block 31, the other end of the pull rod 3 is connected to the driving member 7, and the limit block 31 abuts against the end of the first part 11 away from the second part 12. The limit block 31 prevents the pull rod 3 from slipping out of the first part 11.

[0031] Example 5

[0032] Combined with Figure 1-2Compared with any one of the technical solutions in Examples 1-4, the stator turning device of this embodiment can be improved as follows: the diameter of the limit block 31 is larger than the diameter of the cavity.

[0033] Example 6

[0034] Combined with Figure 1-2 Compared with any one of the technical solutions in embodiments 1 to 5, the stator turning device of this embodiment can be improved as follows: the contact member 4 is provided with a plurality of mounting grooves along the circumferential direction, and an anti-slip ring is provided in the mounting groove. The anti-slip ring plays a role in further fixing the stator 8.

[0035] Example 7

[0036] Combined with Figure 1-2 , compared with any one of the technical solutions in embodiments 1-6, the stator turning device of this embodiment can be improved as follows: the material of the anti-skid ring is rubber, silicone or plastic. In this embodiment, the material of the anti-skid ring is rubber, which has excellent wear resistance and chemical resistance and can effectively play an anti-skid role. In other embodiments, the material of the anti-skid ring can be silicone or plastic.

[0037] Example 8

[0038] Combined with Figure 1-2 , compared with any one of the technical solutions in Examples 1-7, the stator turning device of this embodiment can be improved as follows: the elastic member 6 is a spring.

[0039] Example 9

[0040] Combined with Figure 1-2 Compared with any one of the technical solutions in embodiments 1 to 8, the stator turning device of this embodiment can be improved as follows: the first part 11 and the second part 12 are an integrated structure. The integrated structure is more solid.

[0041] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

Claims

1. A stator turning device, characterized in that: It includes a main body, a tensioner, a pull rod, a contact piece and a positioning piece, the main body is sleeved on the outside of the pull rod, the main body includes a first part and a second part connected to the first part, the tensioner is sleeved on the outer periphery of the first part, the contact piece is sleeved on the outer periphery of the tensioner, the contact piece is used to contact the inner circle of the stator, the positioning piece is sleeved on the outer periphery of the second part, the positioning piece is used to cooperate with the end face of the stator, an elastic piece is arranged between the positioning piece and the second part, the pull rod is connected to a driving piece, so that the pull rod can reciprocate along the radial direction of the main body under the drive of the driving piece; the contact piece is provided with a plurality of mounting grooves along the circumferential direction, and an anti-slip ring is arranged in the mounting groove; the setting of the elastic piece improves the restraining force between the positioning piece and the second part, thereby improving the axial restraining force of the stator; the first part and the tensioner are tapered, and the taper of the first part is opposite to the taper direction of the tensioner.

2. The stator turning device according to claim 1, characterized in that: The body has a cavity for the pull rod to pass through.

3. The stator turning device according to claim 2, characterized in that: One end of the pull rod is provided with a limit block, and the other end of the pull rod is connected with a driving member, and the limit block abuts against an end of the first part away from the second part.

4. The stator turning device according to claim 3, characterized in that: The diameter of the limiting block is greater than the diameter of the cavity.

5. The stator turning device according to claim 1, characterized in that: The material of the anti-slip ring is rubber.

6. The stator turning device according to claim 1, characterized in that: The elastic member is a spring.

7. The stator turning device according to claim 1, characterized in that: The first part and the second part are an integrated structure.

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