A jig for motor assembly

Abstract

The present application provides a kind of for motor assembly jig, its technical scheme main point is that the jig includes support base, outer positioning device and center positioning device, the center positioning device includes fixed seat, positioning needle and floating positioning mechanism, the floating positioning mechanism is set on fixed seat and can be elastically clamped to positioning needle when positioning needle extends to above fixed seat, and the positioning needle is used for ring-shaped parts and can be reset when being pressed down by rotor.The positioning needle can be set for ring-shaped parts such as gasket, when motor is installed on the jig, the motor rotor can pass through the ring-shaped part after pressing down the positioning needle, the positioning needle is pressed downward after moving, and the fixed seat provides positioning for the rotor, which can meet the positioning of the rotor, and can realize the quick assembly of the rotor and the ring-shaped part.In addition, the outer positioning device can realize the positioning of the motor shell, which meets the positioning conditions of motor automatic assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of motor production and processing, and particularly relates to a jig for motor assembly. BACKGROUND

[0002] A motor is generally composed of a shell, a stator, a rotor and other accessories. Existing motor assembly is mostly manually assembled. However, manual assembly consumes a lot of manpower and has low production efficiency, and it is difficult to ensure the consistency and product quality of the assembled motor. Therefore, a production line capable of automatically assembling a motor is needed, and the existing jig cannot meet the positioning requirements of motor automatic assembly. SUMMARY

[0003] The present application aims to provide a jig for motor assembly which can provide positioning for motor assembly.

[0004] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0005] A jig for motor assembly, comprising a supporting base, an outer positioning device and a center positioning device, the outer positioning device and the center positioning device are arranged on the supporting base, the outer positioning device is used for clamping and fixing the motor shell, the center positioning device comprises a fixing seat, a positioning pin and a floating positioning mechanism, the fixing seat is installed on the supporting base, the positioning pin is inserted into the fixing seat and can move along the height direction relative to the fixing seat, the floating positioning mechanism is arranged on the fixing seat and can elastically clamp the positioning pin when the positioning pin extends above the fixing seat, the positioning pin is used for sleeving the annular part and can reset when pressed by the rotor.

[0006] Further provided is that the positioning pin comprises a positioning part and a limiting part connected with each other, the diameter of the positioning part is smaller than that of the limiting part, the fixing seat top surface is provided with an avoiding hole for the positioning part to pass through, the positioning part is used for sleeving the annular part, and the limiting part can be clamped with the fixing seat after the positioning pin moves to the highest point.

[0007] Further provided is that the floating positioning mechanism comprises an elastic member and a positioning spherical member connected with each other, the elastic member and the positioning spherical member are installed in the fixing seat, and the limiting part is provided with a positioning groove for the positioning spherical member to be clamped into.

[0008] Further provided is that the side wall of the fixing seat is provided with a guide hole extending along the height direction thereof, the limiting part is connected with a limiting pin, the limiting pin passes through the guide hole and can move along the guide hole.

[0009] Further arrangement: the top surface of the fixing base is provided with at least one magnetic member, which is used for adsorbing and fixing the motor shell.

[0010] Further arrangement: the external positioning device comprises a pair of positioning clamping blocks, which are installed on the support base and used for jointly clamping and fixing the motor shell, and the fixing base is located between the two positioning clamping blocks.

[0011] Further arrangement: at least one of the two positioning clamping blocks can slide relative to the support base so as to change the distance between the two positioning clamping blocks.

[0012] Further arrangement: one of the positioning clamping blocks is connected with a movable block, the support base is provided with a linear guide rail, the extending direction of the linear guide rail is parallel to the connecting direction of the two positioning clamping blocks, and the movable block is installed on the linear guide rail and can move along the linear guide rail.

[0013] Further arrangement: the support base is fixedly provided with a stop block, the stop block is located on the side of the movable block away from the positioning clamping block, and a buffer spring is connected between the stop block and the movable block, which is used for making the positioning clamping block abut against the motor shell.

[0014] Further arrangement: the top surface of each of the two positioning clamping blocks is provided with a positioning top column, which is used for penetrating through the positioning hole reserved on the motor shell.

[0015] Compared with the prior art, the scheme has the following advantages:

[0016] In the jig for motor assembly, the positioning top needle can be a ring-shaped part such as a gasket, when the motor is installed on the jig, the motor rotor can pass through the ring-shaped part after pressing the positioning top needle downward, the positioning top needle is extruded to move downward, and the fixing base provides positioning for the rotor, which can meet the positioning of the rotor and realize the quick assembly of the rotor and the ring-shaped part. In addition, the external positioning device can position the motor shell, which meets the positioning condition of the motor automatic assembly.

[0017] Additional aspects and advantages of the present application will be described in part in the description which follows, and will become apparent from the description, or will be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0019] Fig. 1 The structure schematic view of the jig in one embodiment of the present application;

[0020] Fig. 2 Fig. 4 is an exploded view of the jig according to an embodiment of the present application;

[0021] Fig. 3 Fig. 5 is an exploded view of the support base according to an embodiment of the present application. DETAILED DESCRIPTION

[0022] Embodiments of the present application are described in detail below with reference to the attached drawings, wherein the same or like reference numerals in the drawings represent the same or like elements or elements having the same or similar functions throughout the several views. The embodiments described below are exemplary only, and are not to be construed as limiting the present application.

[0023] As shown in Figs. 1 to 3 The present application provides a jig for motor assembly, which comprises a support base 1, an outer positioning device 2 and a center positioning device 3, the outer positioning device 2 and the center positioning device 3 are arranged on the support base 1, the outer positioning device 2 is used for clamping and fixing the motor shell, the center positioning device 3 comprises a fixing seat 31, a positioning pin 32 and a floating positioning mechanism 33, the fixing seat 31 is installed on the support base 1, the positioning pin 32 is inserted into the fixing seat 31 and can move along the height direction relative to the fixing seat 31, the floating positioning mechanism 33 is arranged on the fixing seat 31 and can elastically clamp the positioning pin 32 when the positioning pin 32 extends above the fixing seat 31, the positioning pin 32 is used for sleeving the annular part and can reset downward when pressed by the rotor.

[0024] The outer positioning device 2 can be used for positioning and fixing the motor shell, and the center positioning device 3 can be used for positioning and fixing the rotor of the motor. In the process of motor assembly, first, the motor shell is placed on the outer positioning device 2 for positioning and fixing, at this time, the positioning pin 32 in the center positioning device 3 passes through the motor shell from the bottom, at this time, the annular part such as a gasket can be sleeved on the positioning pin 32, then the rotor is inserted into the motor shell, the rotor shaft presses the positioning pin 32 downward, the positioning pin 32 moves downward under the pressure, the rotor shaft passes through the gasket and the motor shell to realize the connection with the motor shell, at the same time, the rotor shaft can be inserted into the fixing seat 31, the fixing seat 31 provides positioning for the rotor, thereby realizing the inner and outer positioning of the motor shell and the rotor, facilitating the assembly of the motor and meeting the positioning conditions of the automatic assembly production of the motor.

[0025] Furthermore, the positioning pin 32 includes a positioning part 321 and a limiting part 322 connected to each other. The diameter of the positioning part 321 is smaller than the diameter of the limiting part 322. The top surface of the fixed base 31 is provided with a clearance hole 311 for the positioning part 321 to pass through. The diameter of the clearance hole 311 is smaller than that of the limiting part 322. The positioning part 321 is used for the ring-shaped part to be fitted. The limiting part 322 can engage with the fixed base 31 after the positioning pin 32 moves to the highest point. The clearance hole 311 can also allow the rotor shaft to pass through to provide a positioning function for the rotor.

[0026] With this configuration, after the limiting part 322 moves to the highest point, it can form a snap-fit ​​structure with the fixed base 31, preventing the positioning pin 32 from coming out upward and improving the connection reliability between the positioning pin 32 and the fixed base 31.

[0027] Furthermore, the floating positioning mechanism 33 includes an elastic element 331 and a positioning ball 332 connected to each other. Preferably, the elastic element 331 is a spring and the positioning ball 332 is a positioning steel ball. The elastic element 331 and the positioning ball 332 are installed in the fixed base 31. The limiting part 322 is provided with a positioning groove 3221 into which the positioning ball 332 can be inserted. In this embodiment, the positioning groove 3221 extends along the circumferential direction of the limiting part 322 to form an annular groove structure.

[0028] By providing an elastic element 331 and a positioning ball element 332 within the fixed base 31, the elastic element 331 provides elastic force to the positioning ball element 332. When the positioning pin 32 is at its highest point, the positioning ball element 332 can be embedded in the positioning groove 3221 of the positioning pin 32, providing a floating clamping force to the positioning pin 32, thus keeping the positioning pin 32 fixed at a high position. When the positioning pin 32 is subjected to a large downward pressure, the positioning pin 32 disengages from the positioning ball element 332 and moves downward to reset. The positioning part 321 of the positioning pin 32 disengages from the clearance hole 311, providing space for the rotor shaft to be inserted into the clearance hole 311.

[0029] Furthermore, a guide hole 312 extending along its height direction is provided on the side wall of the fixed base 31, and a limiting pin 34 is connected to the limiting part 322. The limiting pin 34 is inserted into the limiting part 322 and can pass through the guide hole 312 and move along the guide hole 312.

[0030] By installing a limiting pin 34 on the positioning pin 32, the limiting pin 34 passes through the guide hole 312 and can only move up and down along the guide hole 312, thereby controlling the movement stroke of the positioning pin 32, preventing the positioning pin 32 from falling down, and making it easier to push the positioning pin 32 back up to the high position later.

[0031] Furthermore, at least one magnetic element 35 is mounted on the top surface of the fixing base 31. The magnetic element 35 is a magnet, and it is used to attract and fix the motor housing. Preferably, two mounting slots 313 are formed on the top surface of the fixing base 31, and one magnetic element 35 is mounted on each of the two mounting slots 313. The magnetic element 35 is fixed to the fixing base 31 by means of screws passing through it.

[0032] By setting a magnetic component 35 on the top surface of the fixed base 31, the magnetic component 35 can provide magnetic attraction force to attract the motor housing, prevent the motor housing from shaking, and improve the positioning effect of the motor housing.

[0033] Furthermore, the external positioning device 2 includes a pair of positioning clamps 21, which are mounted on the support base 1 and used to clamp and fix the motor housing together. The fixing seat 31 is located between the two positioning clamps 21. Preferably, at least one of the two positioning clamps 21 can slide relative to the support base 1 to change the distance between the two positioning clamps 21.

[0034] In this embodiment, a movable block 22 is connected to one of the positioning clamps 21, and a slider 23 is connected to the movable block 22. A linear guide rail 24 is installed on the support base 1. The extension direction of the linear guide rail 24 is parallel to the line connecting the two positioning clamps 21. The slider 23 is installed on the linear guide rail 24 and can move along the linear guide rail 24.

[0035] With this configuration, one positioning clamp 21 is fixed relative to the support base 1, and the other positioning clamp 21 slides relative to the support base 1, thereby changing the distance between the two positioning clamps 21. This allows for clamping of motors of different sizes, making it more versatile.

[0036] Furthermore, a stop block 25 is fixedly installed on the support base 1. The stop block 25 is located on the side of the movable block 22 away from the positioning clamp block 21. A buffer spring 26 is connected between the stop block 25 and the movable block 22. The buffer spring 26 is used to press the positioning clamp block 21 against the motor housing.

[0037] By setting a buffer spring 26 between the stop block 25 and the movable block 22, the two positioning clamping blocks 21 have a floating clamping function. The spacing of the positioning clamping blocks 21 can be automatically adjusted to adapt to the size of the motor housing, and can always keep the motor housing in a clamped state, ensuring the positioning effect of the motor housing. The positioning structure is simple and does not require manual adjustment and fixing of the positioning clamping blocks 21.

[0038] Preferably, the movable block 22 has a mounting hole 221 for the buffer spring 26 to be inserted. The mounting hole 221 provides mounting space for the buffer spring 26 and prevents the buffer spring 26 from falling out.

[0039] Preferably, the positioning clamping block 21 has a slot 211 on the side near the movable block 22, into which the movable block 22 can be inserted. By providing the slot 211, the movable block 22 and the positioning clamping block 21 can be engaged with each other in the vertical direction, thereby improving the reliability of their connection.

[0040] Furthermore, the positioning clamps 21 have a positioning clamping opening 212 on one side where they meet, into which the motor housing is embedded. By setting the structure of the positioning clamping opening 212, a wrapping structure can be formed around the motor housing, ensuring the stability of the positioning of the motor housing.

[0041] Furthermore, each of the two positioning clamps 21 is provided with a positioning top post 27 on its top surface, and the positioning top post 27 is used to pass through the positioning hole reserved on the motor housing.

[0042] Furthermore, the support base 1 is provided with a clearance groove 11 for the fixing seat 31 to be inserted and fixed. The clearance groove 11 has a square structure and provides a positioning function for the fixing seat 31.

[0043] In summary, the solution of the present invention has the following advantages:

[0044] In the fixture for motor assembly involved in this invention, the positioning pin 32 can be a ring-shaped part such as a washer. When the motor is installed on the fixture, the motor rotor can press down the positioning pin 32 and pass through the ring-shaped part. After the positioning pin 32 is squeezed and moves downward, the fixed seat 31 provides positioning for the rotor. This satisfies the positioning of the rotor and enables the rapid assembly of the rotor and the ring-shaped part. In addition, the external positioning device 2 can position the motor housing, thus meeting the positioning conditions for automated motor assembly.

[0045] The above description is only a partial embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A jig for assembling an electric motor, characterized in that: The device includes a support base, an external positioning device, and a central positioning device. The external positioning device and the central positioning device are mounted on the support base. The external positioning device is used to clamp and fix the motor housing. The central positioning device includes a fixed seat, a positioning pin, and a floating positioning mechanism. The fixed seat is mounted on the support base. The positioning pin is inserted into the fixed seat and can move relative to the fixed seat in the height direction. The floating positioning mechanism is mounted on the fixed seat and can elastically clamp the positioning pin when the positioning pin extends above the fixed seat. The positioning pin is used for fitting annular parts and can move down and reset when pressed by the rotor. The positioning pin includes a positioning part and a limiting part connected to each other. The diameter of the positioning part is smaller than the diameter of the limiting part. The top surface of the fixed seat has a clearance hole for the positioning part to pass through. The positioning part is used for the ring part to be fitted. The limiting part can engage with the fixed seat after the positioning pin moves to the highest point. The floating positioning mechanism includes an elastic element and a positioning ball element that are connected to each other. The elastic element and the positioning ball element are installed in a fixed base. The limiting part is provided with a positioning groove into which the positioning ball element can be inserted. The side wall of the fixed base is provided with a guide hole extending along its height direction, and a limiting pin is connected to the limiting part. The limiting pin passes through the guide hole and can move along the guide hole.

2. The fixture for motor assembly according to claim 1, characterized in that: At least one magnetic component is installed on the top surface of the mounting base, which is used to attract and fix the motor housing.

3. The fixture for motor assembly according to claim 1, characterized in that: The external positioning device includes a pair of positioning clamps, which are mounted on a support base and used to clamp and fix the motor housing together. The fixing seat is located between the two positioning clamps.

4. The jig for motor assembly according to claim 3, characterized in that: At least one of the two positioning clamps can slide relative to the support base, thereby changing the distance between the two positioning clamps.

5. The jig for motor assembly according to claim 4, characterized in that: one of them A movable block is connected to the positioning clamp, and a linear guide rail is installed on the support base. The extension direction of the linear guide rail is parallel to the line connecting the two positioning clamps. The movable block is installed on the linear guide rail and can move along the linear guide rail.

6. The jig for assembling a motor according to claim 5, characterized in that: The support base is fixedly equipped with a stop block, which is located on the side of the movable block away from the positioning clamp block. A buffer spring is connected between the stop block and the movable block, and the buffer spring is used to press the positioning clamp block against the motor housing.

7. The jig for motor assembly according to claim 3, characterized in that: Both positioning clamps are provided with positioning pins on their top surfaces, which are used to pass through positioning holes reserved on the motor housing.

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