Circumferential distance detection mechanism for stator end face and casing end face

Abstract

The utility model relates to a mechanism for detecting the circumferential distance between a stator end face and a casing end face, which belongs to the technical field of stator press fitting detection and comprises a product placing tool, a lifting frame is arranged at the side end of the product placing tool, and a height detection assembly is arranged on the lifting frame and is movably connected with the product placing tool in a pressing mode to detect the distance. The height detection assembly comprises a connecting seat which is assembled and fixed with the lifting frame, a pressing block ring which is elastically connected with the connecting seat is arranged below the connecting seat, and a detector mounting plate which is connected with the connecting seat in a guide rod mode is arranged above the connecting seat; a plurality of GT height detectors extending to the pressing block ring are arranged at the upper end of the detector mounting plate, and height measuring needles extending out of the lower end face of the pressing block ring are arranged at the lower ends of the GT height detectors. The device has the characteristics of simple structure, time saving, labor saving and good operation stability. The problem of circumferential spacing detection after press fitting of the stator and the casing is solved.

Description

Technical Field

[0001] This utility model relates to the field of stator press-fitting inspection technology, specifically to a mechanism for detecting the circumferential distance between the stator end face and the housing end face. Background Technology

[0002] With industrial development, automotive motors are constantly being updated. As an indispensable component of the motor, the stator's height detection after press-fitting has become an essential process. In the automation industry, this distance detection technology after stator press-fitting has gradually developed. To ensure the assembly accuracy of the stator and rotor, it is first necessary to ensure the circumferential distance between the stator end face and the housing cross-section.

[0003] When an electric motor is running, it is subjected to impacts and torsion from various natural factors, causing the stator and rotor of the motor to vibrate significantly. In severe cases, friction will occur between the rotor and stator, which may reduce the life of the motor or even damage the equipment or cause an accident. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by providing a mechanism for detecting the circumferential distance between the stator end face and the housing end face. This mechanism features simple structure, time and labor savings, and good operational stability. It solves the problem of detecting the circumferential distance after the stator and housing are press-fitted together.

[0005] The above-mentioned technical problems of this utility model are mainly solved by the following technical solutions:

[0006] A circumferential distance detection mechanism for the stator end face and the housing end face includes a product placement fixture. A lifting frame is provided on the side of the product placement fixture. A height detection component is provided on the lifting frame, which is movably pressed against the product placement fixture for distance detection. The height detection component includes a connecting seat fixedly assembled with the lifting frame. A pressure block ring is provided below the connecting seat and elastically connected to it. A detector mounting plate is provided above the connecting seat and is connected to the connecting seat via a guide rod. The upper end of the detector mounting plate is provided with several GT height detectors extending to the pressure block ring. Each GT height detector has a height measuring needle extending from the lower end face of the pressure block ring.

[0007] Preferably, a positioning plate connected to the connecting rod of the pressure block ring is provided between the pressure block ring and the connecting seat, and springs are provided at the four corners of the positioning plate and the connecting seat.

[0008] Preferably, the lifting frame includes a support column, the upper end of which is provided with a cylinder, and the lower end of which is provided with a sliding plate that is screwed and fixed to the connecting seat.

[0009] Preferably, a guide rail seat is provided between the support column and the cylinder, which is slidably inserted into the slide plate, and the side of the guide rail seat is provided with a chain plate groove for connecting the GT height detector circuit.

[0010] Preferably, the product placement fixture includes a product fixture base, and product through-beam sensors are provided on both sides of the product fixture base.

[0011] This invention can achieve the following effects:

[0012] This invention provides a mechanism for detecting the circumferential distance between the stator end face and the housing end face. Compared with existing technologies, it features a simple structure, time and labor saving, and good operational stability. During the height detection operation after stator press-fitting, the displacement generated by the height-measuring needle contacting the product housing is measured by a GT displacement sensor contacting the height-measuring needle. This solves the problem of detecting the circumferential distance after the stator and housing are press-fitted. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the height detection component in this utility model.

[0015] Figure 3 This is a schematic diagram of the product placement fixture in this utility model.

[0016] Figure 4 This is a structural schematic diagram of the lifting frame in this utility model.

[0017] In the diagram: 1. Height detection component; 2. Lifting frame; 3. Product placement fixture; 4. Detector mounting plate; 5. GT height detector; 6. Connecting seat; 7. Pressure ring; 8. Height measuring needle; 9. Positioning plate; 10. Spring; 11. Product through-beam sensor; 12. Product fixture seat; 13. Cylinder; 14. Chain plate groove; 15. Support column; 16. Slide plate; 17. Guide rail seat. Detailed Implementation

[0018] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0019] Example: Figure 1-4As shown, a circumferential distance detection mechanism between the stator end face and the housing end face includes a product placement fixture 3, which includes a product fixture base 12. Product through-beam sensors 11 are provided on both sides of the product fixture base 12. A lifting frame 2 is provided on the side of the product placement fixture 3. The lifting frame 2 includes a support column 15, a cylinder 13 at the upper end of the support column 15, and a sliding plate 16 at the lower end of the cylinder 13, which is screwed and fixed to a connecting seat 6. A guide rail seat 17 is provided between the support column 15 and the cylinder 13, which slides into the sliding plate 16. A chain plate groove 14 for circuit connection of a GT height detector 5 is provided on the side of the guide rail seat 17. A height detection component 1, which is movably pressed into the product placement fixture 3 for distance detection, is provided on the lifting frame 2. The height detection assembly 1 includes a connecting seat 6 that is assembled and fixed to the lifting frame 2. Below the connecting seat 6 is a pressure ring 7 that is elastically connected to the connecting seat 6. Above the connecting seat 6 is a detector mounting plate 4 that is connected to the connecting seat 6 via a guide rod. The upper end of the detector mounting plate 4 has three GT height detectors 5 arranged in a ring at equal intervals and extending to the pressure ring 7. Each GT height detector 5 has a height measuring needle 8 extending from the lower end face of the pressure ring 7. A positioning plate 9, connected to the connecting rod of the pressure ring 7, is provided between the pressure ring 7 and the connecting seat 6. Springs 10 are provided at each of the four corners of the positioning plate 9 and between the positioning plate 9 and the connecting seat 6.

[0020] The stator housing is press-fitted and placed onto the product fixture seat 12 of the product placement fixture 3 using a robotic arm or manual handling. After the product is placed in position, the product through-beam sensor 11 detects that the product is in place, and the cylinder 13 drives the height detection component 1 to descend to the specified test height. The pressure ring 7 contacts the product and moves to the appropriate test height through the retraction of the spring 10. After the height measuring needle 8 contacts the stator end face, the displacement generated by its retraction contacting the GT height detector 5 is the height difference between the stator and the product housing. The PLC determines whether the measured value is within the set value range. If it is an NG product, the robotic arm or manual handling places the product in the NG product storage area.

[0021] In summary, this mechanism for detecting the circumferential distance between the stator end face and the housing end face features a simple structure, saves time and effort, and offers good operational stability. It solves the problem of detecting the circumferential distance after the stator and housing are press-fitted together.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] In summary, the above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A mechanism for detecting the circumferential distance between the end face of a stator and the end face of a housing, characterized by: The utility model provides a product placement tool (3) is provided with lifting frame (2) on the side end, height detection assembly (1) is provided on lifting frame (2) and is movable with product placement tool (3) and carries out spacing detection, the height detection assembly (1) includes the fixed connecting seat (6) of being assembled with lifting frame (2), the connecting seat (6) below is provided with the pressure block ring (7) of being elastically connected with connecting seat (6), the connecting seat (6) top is provided with the detector mounting plate (4) of being connected with connecting seat (6) with guide rod, the detector mounting plate (4) upper end is provided with a plurality of GT height detector (5) extending to pressure block ring (7), the GT height detector (5) lower end is provided with the height measuring needle (8) extending out the lower end surface of pressure block ring (7).

2. The mechanism for detecting the circumferential distance between the end face of the stator and the end face of the housing according to claim 1, characterized in that: The pressure block ring (7) and connecting seat (6) are provided with a positioning plate (9) connected with the connecting rod of pressure block ring (7), and the positioning plate (9) is provided with a spring (10) between the four corners and the connecting seat (6).

3. The mechanism for detecting the circumferential distance between the end face of the stator and the end face of the housing according to claim 1, characterized in that: The lifting frame (2) includes a support column (15), and the support column (15) is provided with a gas cylinder (13) at the upper end.

4. The mechanism for detecting the circumferential distance between the end face of the stator and the end face of the housing according to claim 3, characterized in that: The support column (15) and the gas cylinder (13) are provided with a guide rail seat (17) which is slidably inserted with the sliding plate (16), and the side of the guide rail seat (17) is provided with a chain plate wire slot (14) for circuit communication of the GT height detector (5).

5. The mechanism for detecting the circumferential distance between the end face of the stator and the end face of the housing according to claim 1, characterized in that: The product placement tool (3) includes a product tool seat (12), and the product tool seat (12) is provided with a product irradiation sensor (11) on both sides.

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