Tool for turning stator casing

Abstract

The utility model relates to a tool for turning a stator casing, which comprises a core rod axially penetrating through a stator iron core, a first section, a second section, a third section and a fourth section are axially and sequentially distributed on the core rod, the diameter of the first section is larger than that of the second section, and a limiting surface abutting against the end face of the stator iron core is formed between the first section and the second section; the diameter of the small-diameter end of the second section is equal to that of the third section; the diameter of the fourth section is smaller than that of the third section; a pressing ring is arranged in the circumferential direction of the gland in the reverse direction of the first axis. The locking piece is arranged at the fourth section; after the stator casing and the stator iron core are assembled, the mandrel penetrates through the stator iron core, a gland and a locking piece are arranged at the fourth section of the mandrel, the gland is arranged in the reverse direction of the first axis through the locking piece, the stator iron core is forced to be in the reverse direction of the first axis, and the stator iron core and the second section of the mandrel are in interference fit. At the moment, clamping of the stator shell can be achieved, rotation of the stator shell is achieved by rotating the core rod, and machining of the stator shell is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor machining frock, especially car stator shell frock. BACKGROUND

[0002] In motor shell machining frock, need to carry out clamping processing to stator shell 01, the inside shape of conventional stator shell 01 is changeable, which leads to the stator shell 01 unable to realize the clamping of universality, and then when needing to process one kind of stator shell, the fixture needs to be redesigned, and the compatibility of the fixture is poor.

[0003] In summary, how to realize the clamping of the stator shell has become a problem that researchers in the field urgently need to solve. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is how to realize the clamping of the stator shell.

[0005] To solve the above technical problem, the technical scheme adopted by the utility model is as follows:

[0006] The utility model discloses a car stator shell frock, which comprises a core rod, an axial direction of the core rod passes through a stator core, and the axial direction of the core rod is sequentially distributed as a first section, a second section, a third section and a fourth section. The first section, the third section and the fourth section are equal-diameter structures. The diameter of the second section gradually decreases in the first axis direction, and a large-diameter end and a small-diameter end are formed. The diameter of the first section is greater than that of the second section, and a limiting surface abutting against an end surface of the stator core is formed between the first section and the second section. The diameter of the small-diameter end of the second section is equal to that of the third section. The diameter of the fourth section is smaller than that of the third section. A compression cover is provided with a connecting hole in the center for the fourth section to pass through, and a compression ring is arranged in the reverse direction of the first axis. A locking member is arranged at the fourth section and is suitable for moving the compression cover in the reverse direction of the first axis to make the compression ring abut against the other end surface of the stator core.

[0007] Further, the fourth section has an external thread section, and the locking member adopts a nut. When the nut is rotated, the compression cover is forced to move in the reverse direction of the first axis.

[0008] Further, a guide section is arranged between the third section and the fourth section. The guide section gradually decreases in the first axis direction. The diameter of the third section is equal to that of one end of the guide section, and the diameter of the other end of the guide section is greater than that of the fourth section.

[0009] Further, a plurality of avoiding grooves are arranged in the end of the compression ring in the circumferential direction, and the buckle end of the stator core is located in the avoiding grooves.

[0010] Further, the first section end is also fixed with a clamping section in the reverse direction of the first axis, and the diameter of the clamping section is larger than that of the first section.

[0011] The utility model discloses the beneficial effect has: the utility model discloses the car stator machine shell tool, and the stator core is completed after assembling, and the mandrel is passed through the stator core, and the fourth section of mandrel is provided with gland, locking piece, and through locking piece, forces the stator core along the first axis reverse direction along the first axis reverse direction with the stator core and the second section of mandrel between the interference fit, can realize the clamping of stator machine shell at this moment, rotates the mandrel and realizes the rotation of stator machine shell, and the processing of stator machine shell is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0012] The utility model is further explained below in combination with the drawings and examples.

[0013] Figure 1 It is the structure schematic diagram of the utility model;

[0014] Figure 2 It is the sectional view of the utility model;

[0015] Figure 3 It is the structure schematic diagram of the mandrel of the utility model;

[0016] Figure 4 It is the structure schematic diagram of the gland of the utility model. DETAILED DESCRIPTION

[0017] Now the utility model is further explained in detail in combination with the drawings. These drawings are all simplified schematic diagrams, and only the basic structure of the utility model is schematically shown, so it only shows the relevant constitution of the utility model.

[0018] As Figures 1-4As shown, the embodiment discloses a kind of stator shell tooling, including: core rod 1, it axially passes through stator core 01, it is sequentially distributed as first section 11, second section 12, third section 13, fourth section 14 in axial direction, the first section 11, third section 13, fourth section 14 are equal-diameter structure;The diameter of the second section 12 gradually decreases in the direction of first axis, and forms large diameter end 121, small diameter end 122;Wherein, the diameter of the first section 11 is greater than the diameter of the second section 12, and the first section 11, second section 12 form the limit surface 123 with the end surface of the stator core 01;The diameter of the small diameter end 122 of the second section 12 is equal to the diameter of the third section 13;The diameter of the fourth section 14 is less than the diameter of the third section 13;Cover 2 is centrally provided with connecting hole 21 for the fourth section 14 to pass through, and the cover 2 is provided with compression ring 22 in the direction opposite to the first axis;Locking member 3 is arranged at the fourth section 14, which is suitable for moving the cover 2 in the direction opposite to the first axis, and the compression ring 22 is abutted with the other end surface of the stator core 02.

[0019] In the embodiment, before the core rod 1 is inserted into the stator core 02, first ensure the connection of the stator core 02 and the stator shell 01;The first axis direction is from left to right, the core shaft 1 is first section 11, second section 12, third section 13, fourth section 14 from left to right, and the first section 11 and the second section 12 form the limit surface 123, when the end surface of the stator core 02 cooperates with the limit surface 123, it means that the core rod 1 and the stator core 02 are matched;The diameter of the large diameter end 121 of the second section 12 is greater than the inner diameter of the stator core 02, so that the second section 12 and the stator core 02 form an interference fit, to ensure the tightness of the connection of the core rod 1 and the stator core 02;The diameter of the third section 13 is equal to or slightly less than the inner diameter of the stator core 02;

[0020] The tooling and the stator shell 01 are assembled as follows: the core rod 1 is inserted from the left side of the stator core 02 and the right side, at this time the small diameter end 121 of the right side of the second section 12 cooperates with the stator core 02, so that the core rod 1 cannot move to the right relative to the stator core 02, then the cover 2 and the locking member 3 are installed at the fourth section 14, the locking member 3 is rotated, the cover 2 is forced to move to the left relative to the core rod 1, at this time the second section 12 and the stator core 02 are in interference fit, until the end surface of the stator core 02 abuts against the limit surface 123, at this time the core rod 1 and the stator core 02 are installed, the tooling and the stator shell 01 are assembled, and the subsequent processing of the stator shell 01 is facilitated.

[0021] In some possible embodiments, the outer wall of the fourth section 14 has an outer threaded section;The locking member 3 adopts a nut, when the nut is rotated, the cover 2 is forced to move in the direction opposite to the first axis;

[0022] In the embodiment, the nut is matched with the external thread section of the fourth section 14, and rotating the nut realizes the axial movement along the fourth section 14, and forces the axial movement of the gland 2.

[0023] In some possible embodiments, a guide section 15 is arranged between the third section 13 and the fourth section 14, the guide section 15 gradually decreases in the first axis direction, the diameter of the third section 13 is equal to the diameter of one end of the guide section 15, and the diameter of the other end of the guide section 15 is greater than the diameter of the fourth section 14.

[0024] In the embodiment, since the diameter of the third section 13 is equal to or slightly smaller than the inner diameter of the stator core 02, the third section 13 is difficult to pass through the stator core 02, so the guide section 15 is arranged between the third section 13 and the fourth section 14, and the guide section 15 is a frustum structure, so that the core rod 1 is conveniently passed through the stator core 02.

[0025] In some possible embodiments, a plurality of avoiding grooves 23 are circumferentially arranged at the end of the compression ring 22, and the end of the clamping sheet 03 of the stator core 02 is located in the avoiding groove 23.

[0026] In the embodiment, since the clamping sheet 03 is needed to be fixed during the cooperation of the stator core 02 and the stator winding, but the end of the clamping sheet 03 often protrudes from the end of the stator core 02, in order to realize the abutment of the end surface of the compression ring 22 and the stator core 02, the avoiding groove 23 is arranged on the compression ring 22 at this time, and the avoiding groove 23 is used for avoiding the end of the clamping sheet 03.

[0027] In some possible embodiments, a clamping section 16 is further fixed at the end of the first section 11 in the opposite direction of the first axis, and the diameter of the clamping section 16 is greater than the diameter of the first section 11.

[0028] In the embodiment, since the end of the core rod 1 needs to be clamped by the clamping jaw, in order to provide the clamping position of the clamping jaw, the clamping section 16 is arranged at the left side of the first section 11.

[0029] Based on the above ideal embodiments according to the utility model, through the above description, relevant staff can make various changes and modifications without deviating from the technical thought of the utility model. The technical scope of the utility model is not limited to the content in the specification, and must be determined according to the scope of claims.

Claims

1. A fixture for a vehicle stator housing, characterized by, The application relates to a core rod and a pressing cover. The core rod axially passes through a stator core, and the core rod is sequentially distributed in a first section, a second section, a third section and a fourth section along an axial direction; the first section, the third section and the fourth section are equal-diameter structures; the diameter of the second section gradually decreases along the axial direction and forms a large-diameter end and a small-diameter end; The diameter of the first section is larger than that of the second section, and a limiting surface is formed between the first section and the second section and abuts against an end surface of the stator core; the diameter of the small-diameter end of the second section is equal to that of the third section; the diameter of the fourth section is smaller than that of the third section; The pressing cover is provided with a connecting hole in the center for the fourth section to pass through, and the pressing cover is provided with a pressing ring in the circumferential direction and along the reverse direction of the first axis; A locking member is arranged at the fourth section and is suitable for moving the pressing cover along the reverse direction of the first axis and abutting the pressing ring against the other end surface of the stator core.

2. The vehicle stator housing tooling of claim 1, wherein, The outer wall of the fourth section is provided with an external thread section; The locking member is a nut, and when the nut is rotated, the pressing cover is forced to move along the reverse direction of the first axis.

3. The vehicle stator housing tooling of claim 1, wherein, A guide section is arranged between the third section and the fourth section, the guide section gradually decreases along the axial direction, the diameter of the third section is equal to that of one end of the guide section, and the diameter of the other end of the guide section is larger than that of the fourth section.

4. The vehicle stator housing tooling of claim 1, wherein, The end of the pressing ring is provided with a plurality of avoiding grooves in the circumferential direction, and the end of the clamping sheet of the stator core is arranged in the avoiding grooves.

5. The vehicle stator housing fixture of claim 1, wherein, The end of the first section is further fixed with a clamping section along the reverse direction of the first axis, and the diameter of the clamping section is larger than that of the first section.

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