Stator lining clamp

Abstract

The utility model relates to a stator lining clamp, and belongs to the technical field of new energy motor processing. Comprising a clamp fixing mandrel of a hollow cylindrical structure, and a cylindrical unlocking rod is telescopically inserted into the clamp fixing mandrel from the tail; a three-jaw clamp spring is further arranged in an inner cavity of the clamp fixing mandrel, one end of the three-jaw clamp spring abuts against a spring plug fixed to the tail end of the clamp fixing mandrel, the other end of the three-jaw clamp spring abuts against an unlocking rod, an elastic fixing base is fixedly connected to the surface of the clamp fixing mandrel in a sleeved mode, and three pairs of oil-free linings are symmetrically arranged on the elastic fixing base. A guide column is inserted into each oil-free bushing in an up-down moving mode, a clamping jaw is fixedly connected to the top end of each guide column, the bottom of each clamping jaw is hinged and fixed to a hinge pin, the bottom of each hinge pin is hinged to a hinge pin sliding cylinder, and the hinge pin sliding cylinder is slidably arranged on the surface of a clamp fixing mandrel in a sleeving mode. The hinge pin sliding cylinder is fixedly connected to the unlocking rod through a connecting pin rod.

Description

Technical Field

[0001] The utility model relates to a stator inner lining fixture, belonging to the technical field of new energy motor processing. Background Art

[0002] At present, during the processing of a motor stator, it is necessary to fix the motor stator to facilitate subsequent precise positioning and processing. However, most common motor stator fixtures currently clamp and fix the outer surface of the stator, which will cause interference during the processing of the stator exterior, while there are fewer fixtures for clamping the inner part of the stator and the stability is poor.

[0003] In view of the above defects, the inventor actively conducts research and innovation in order to create a stator inner lining fixture with more industrial utilization value. Summary of the Invention

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a stator inner lining fixture.

[0005] A stator inner lining fixture of the utility model includes a fixture fixing mandrel with a hollow cylindrical structure. A cylindrical unlocking rod is telescopically inserted into the fixture fixing mandrel from the tail. A three-jaw fixture spring is further arranged in the inner cavity of the fixture fixing mandrel. One end of the three-jaw fixture spring abuts against a spring plug fixed at the end of the fixture fixing mandrel, and the other end abuts against the unlocking rod. A tightening and fixing seat is fixedly sleeved on the surface of the fixture fixing mandrel. Three pairs of oil-free bushings are symmetrically arranged on the tightening and fixing seat. A guiding column is telescopically inserted into each oil-free bushing. The top end of the guiding column is fixedly connected with a clamping jaw. The bottom of the clamping jaw is hinged and fixed with a hinge pin. The bottom of the hinge pin is hinged and connected with a hinge pin sliding cylinder. The hinge pin sliding cylinder is slidably sleeved on the surface of the fixture fixing mandrel. The hinge pin sliding cylinder is fixedly connected to the unlocking rod through a connecting pin rod.

[0006] Further, the unlocking rod is inserted into the internal cavity of the fixture fixing mandrel. A through guiding groove is arranged on the surface of the unlocking rod. A limiting pin matched with the guiding groove is arranged on the fixture fixing mandrel.

[0007] Further, the limiting pin penetrates through the guiding groove. The limiting pin is in a cylindrical rod structure and is fixedly arranged at both ends on the fixture fixing mandrel.

[0008] Further, the three pairs of oil-free bushings are evenly arranged on the surface of the fixture fixing mandrel, and an included angle of 120° is arranged between adjacent two pairs of oil-free bushings.

[0009] Further, the outside of the spring plug is further fixed at the end of the fixture fixing mandrel through a spring rear cover.

[0010] Further, there are three clamping jaws in total, which are correspondingly arranged with three pairs of the oil-free bushings. The outer supports of the clamping jaws arranged evenly are fixed on the inner wall of the motor stator, improving the clamping stability and firmness.

[0011] By means of the above solution, the present invention has at least the following advantages:

[0012] For the stator inner lining fixture of the present utility model, first, an unlocking rod is pushed inward by an external force. The unlocking rod pushes the inner pressure of the three-jaw fixture spring, and at the same time drives the hinge pin sliding cylinder to slide towards the left end of the fixture fixed core shaft until the limit pin abuts against the left end of the guide groove. At this time, the hinge pin drives the clamping jaws to retract. In the state where the clamping jaws retract, the entire fixture is inserted into the inner cavity of the motor stator. Without external force, the three-jaw fixture spring is in an elastic extension state. At this time, the unlocking rod extends outward under the elastic force of the three-jaw fixture spring, and at the same time drives the hinge pin sliding cylinder to slide towards the right end of the fixture fixed core shaft until the limit pin abuts against the right end of the guide groove. At this time, the hinge pin drives the clamping jaws to expand outward and press tightly against the inner wall of the motor stator, realizing stable and firm clamping and fixing of the motor stator, without affecting subsequent processing operations on the outside of the stator, and having a broad application prospect.

[0013] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly and implement it according to the content of the specification, the following takes the preferred embodiment of the present invention and describes it in detail with the accompanying drawings as follows. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show a certain embodiment of the present utility model, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0015] Figure 1 is a three-dimensional structural schematic diagram of the stator inner lining fixture of the present utility model;

[0016] Figure 2 is a side view structural schematic diagram of the stator inner lining fixture of the present utility model;

[0017] Figure 3 is a sectional view structural schematic diagram of the stator inner lining fixture of the present utility model;

[0018] Among them, in the figure:

[0019] 1. Fixture fixing mandrel; 2. Unlock rod; 3. Jaw; 4. Tightening and fixing seat; 5. Hinge pin; 6. Hinge pin sliding cylinder; 7. Connecting pin rod; 8. Three-jaw fixture spring; 9. Spring plug; 10. Spring rear cover; 11. Limit pin; 21. Guide groove; 41. Oil-free bushing; 42. Guide post. Detailed implementation mode

[0020] The following combines the accompanying drawings and embodiments to further describe in detail the specific implementation mode of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0021] See Figure 1 and Figure 2 As shown in and, a stator inner lining fixture according to a preferred embodiment of the present invention includes a fixture fixing mandrel 1 with a hollow cylindrical structure. A cylindrical unlock rod 2 is telescopically inserted into the fixture fixing mandrel 1 from the tail. A three-jaw fixture spring 8 is further arranged in the inner cavity of the fixture fixing mandrel 1. One end of the three-jaw fixture spring 8 abuts against a spring plug 9 fixed at the end of the fixture fixing mandrel 1, and the other end abuts against the unlock rod 2. A tightening and fixing seat 4 is fixedly sleeved on the surface of the fixture fixing mandrel 1. Three pairs of oil-free bushings 41 are symmetrically arranged on the tightening and fixing seat 4. A guide post 42 is telescopically inserted into each oil-free bushing 41. The top end of the guide post 42 is fixedly connected to a jaw 3. The bottom of the jaw 3 is hinged and fixed to a hinge pin 5. The bottom of the hinge pin 5 is hinged to a hinge pin sliding cylinder 6. The hinge pin sliding cylinder 6 is slidably sleeved on the surface of the fixture fixing mandrel 1. The hinge pin sliding cylinder 6 is fixedly connected to the unlock rod 2 through a connecting pin rod 7.

[0022] The unlock rod 2 is inserted into the internal cavity of the fixture fixing mandrel 1. A through guide groove 21 is arranged on the surface of the unlock rod 2. A limit pin 11 is arranged on the fixture fixing mandrel 1 and is matched with the guide groove 21.

[0023] The limit pin 11 is inserted through the guide groove 21. The limit pin 11 is in a cylindrical rod shape and is fixedly arranged at both ends on the fixture fixing mandrel 1.

[0024] The three pairs of oil-free bushings 41 are evenly arranged on the surface of the fixture fixing mandrel 1, and an included angle of 120° is arranged between adjacent pairs of oil-free bushings 41.

[0025] The outside of the spring plug 9 is also fixed at the end of the fixture fixing mandrel 1 through a spring rear cover 10.

[0026] There are three jaws 3 in total, which are correspondingly arranged with the three pairs of oil-free bushings 41. The inner wall of the motor stator is fixed by the outward support of the evenly distributed jaws 3, improving the clamping stability and firmness.

[0027] The working principle of the present utility model is as follows:

[0028] During the actual use of the stator inner lining fixture of the present utility model, first, an external force is used to push the unlocking rod 2 inward. The unlocking rod 2 pushes the three-jaw fixture spring 8 to be compressed inward, and at the same time drives the hinge pin sliding cylinder 6 to slide towards the left end of the fixture fixed core shaft 1 until the limit pin 11 abuts against the left end of the guide groove 21. At this time, the hinge pin 5 drives the jaws 3 to retract. In the state where the jaws 3 are retracted, the entire fixture is inserted into the inner cavity of the motor stator. Without external force, the three-jaw fixture spring 8 is in a spring-extended state. At this time, the unlocking rod 2 extends outward under the elastic force of the three-jaw fixture spring 8, and at the same time drives the hinge pin sliding cylinder 6 to slide towards the right end of the fixture fixed core shaft 1 until the limit pin 11 abuts against the right end of the guide groove 21. At this time, the hinge pin 5 drives the jaws 3 to expand outward and press tightly against the inner wall of the motor stator, realizing stable and firm clamping and fixing of the motor stator, and thus completing the clamping of the motor stator.

[0029] Finally, the following points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the communication inside two components, and can be directly connected. "Upper", "lower", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the described object changes, the relative position relationship may change;

[0030] Secondly, in the drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the usual designs. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0031] Finally: The above is only the preferred embodiment of the present utility model and is not used to limit the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present invention, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A stator inner lining fixture, characterized in that: It includes a fixture fixing mandrel with a hollow cylindrical structure, and a cylindrical unlocking rod is telescopically inserted into the fixture fixing mandrel from the tail; a three-jaw fixture spring is further arranged in the inner cavity of the fixture fixing mandrel. One end of the three-jaw fixture spring abuts against a spring plug fixed at the end of the fixture fixing mandrel, and the other end abuts against the unlocking rod. A tightening and fixing seat is fixedly sleeved on the surface of the fixture fixing mandrel. Three pairs of oil-free bushings are symmetrically arranged on the tightening and fixing seat. A guide post is telescopically inserted into each oil-free bushing, and the top end of the guide post is fixedly connected with a jaw. The bottom of the jaw is hinged and fixed with a hinge pin, and the bottom of the hinge pin is hinged and connected with a hinge pin sliding cylinder. The hinge pin sliding cylinder is slidably sleeved on the surface of the fixture fixing mandrel, and the hinge pin sliding cylinder is fixedly connected to the unlocking rod through a connecting pin rod.

2. The stator inner lining fixture according to claim 1, wherein: The unlocking rod is inserted into the internal cavity of the fixture fixing mandrel, and a through guide groove is arranged on the surface of the unlocking rod. A limit pin is arranged on the fixture fixing mandrel and is arranged to match the guide groove.

3. The stator inner lining fixture according to claim 2, characterized in that: The limit pin is inserted through the guide groove. The limit pin is in a cylindrical rod structure, and both ends are fixedly arranged on the fixture fixing mandrel.

4. A stator inner lining fixture according to claim 1, characterized in that: The three pairs of oil-free bushings are evenly arranged on the surface of the fixture fixing mandrel, and an included angle of 120° is arranged between adjacent two pairs of oil-free bushings.

5. The stator inner lining fixture according to claim 1, characterized in that: The outer side of the spring plug is also fixed at the end of the fixture fixing mandrel through a spring rear cover.

6. The stator inner lining fixture according to claim 1, wherein: There are three jaws in total, and they are correspondingly arranged with the three pairs of oil-free bushings.

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