Stator positioning clamp

Abstract

The utility model relates to the technical field of motor assembly, and discloses a stator positioning clamp which comprises a base, a placing table is rotatably connected to the base, a plurality of telescopic clamping pieces are annularly and fixedly arranged on the base at equal intervals, a transmission rod is rotatably connected to the bottom of the base, and the transmission rod is in transmission connection with the telescopic clamping pieces. The telescopic clamping piece comprises a fixing base, a rotating shaft is rotationally connected into the fixing base, a connecting plate is arranged on one side of the rotating shaft, a positioning key is connected to one side of the connecting plate, two telescopic rods are hinged to the other side of the connecting plate, and one end of each telescopic rod is rotationally connected with the fixing base and is in transmission connection with the rotating shaft. According to the stator positioning clamp, when the telescopic clamping pieces contract, the interval between every two adjacent telescopic clamping pieces is larger than the size of the stator, the stator can be conveniently and rapidly placed on the placing table, the rotating shaft is driven to rotate by rotating the transmission rod, the connecting plate can translate towards the circle center of the placing table, and the positioning key is driven to be clamped with a groove of the stator; and the stator can be quickly clamped and positioned, and the practicability is good.

Description

Technical Field

[0001] This utility model relates to the field of motor assembly technology, and in particular to a stator positioning fixture. Background Technology

[0002] The stator is the stationary part of an electric motor or generator. It consists of three parts: the stator core, the stator windings, and the frame. The stator is used to generate a rotating magnetic field.

[0003] In the stator assembly process, stator chips, coils, plugs, and other components need to be assembled according to a specific process flow. During this process, the stator needs to be positioned on a positioning fixture. Currently, most stator positioning fixtures are fixed structures designed according to the stator size, resulting in poor adaptability. Existing patent document CN215772860U provides an external clamping stator positioning fixture. This device can adapt to the positioning needs of stators of various sizes by adjusting the position of the stacking columns according to different stator sizes. Furthermore, the device is simple to operate, easy to adjust, has a simple structure, is easy to manufacture, and is economical.

[0004] The device uses a key to engage with a stator groove for positioning. However, this positioning process requires manual alignment of the stator groove with the key and vertical placement, increasing the complexity of the procedure and reducing work efficiency. Therefore, a stator positioning fixture is urgently needed to solve these problems. Utility Model Content

[0005] In view of the above-mentioned problems that the existing methods require manual alignment of the stator groove and key and vertical placement, which increases the complexity of the process and reduces work efficiency, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a stator positioning fixture, which aims to solve the problem that requires manual alignment of the stator groove with the key and vertical placement, which increases the complexity of the process and reduces work efficiency.

[0007] To solve the above technical problems, the present invention provides the following technical solution: a stator positioning fixture, including a base, a placement platform rotatably connected to the base, a plurality of telescopic clamping members fixed in a ring at equal intervals on the base, and a transmission rod rotatably connected to the bottom of the base, the transmission rod being pulsatorically connected to the telescopic clamping members.

[0008] The telescopic clamping component includes a fixed base, a rotating shaft rotatably connected inside the fixed base, a connecting plate on one side of the rotating shaft, a positioning key connected to one side of the connecting plate, and two telescopic rods hinged to the other side. One end of each telescopic rod is rotatably connected to the fixed base and is also connected to the rotating shaft via a transmission.

[0009] In a preferred embodiment of the stator positioning fixture of this utility model, a groove is provided on the base, the groove is coaxial with the base, and the placement platform is disposed in the groove.

[0010] In a preferred embodiment of the stator positioning fixture of this utility model, the positioning key has a T-shaped structure and is inserted into the connecting plate.

[0011] In a preferred embodiment of the stator positioning fixture of this utility model, the telescopic rod is composed of two hinged connecting rods, one end of which is fixedly connected to a worm gear, and a worm is fixedly connected to the rotating shaft, wherein the worm and the worm gear are meshed together.

[0012] As a preferred embodiment of the stator positioning fixture of this utility model, the base is provided with multiple chains at its bottom, and two sprockets are internally connected to each chain. One sprocket is coaxially connected to the transmission rod, and the other sprocket is coaxially connected to the rotating shaft.

[0013] In a preferred embodiment of the stator positioning fixture of this utility model, a T-shaped rod is slidably connected to one end of the transmission rod, a spring is elastically connected between the T-shaped rod and the transmission rod, a positioning toothed plate is fixedly connected to the T-shaped rod, an arc-shaped rack is fixedly connected to the bottom of the base, and the positioning toothed plate and the arc-shaped rack are engaged.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model utilizes telescopic clamping components. When the components retract, the gap between two adjacent telescopic clamping components is greater than the size of the stator, which facilitates the rapid placement of the stator on the placement platform. By rotating the transmission rod, the rotating shaft is driven to rotate, allowing the connecting plate to move towards the center of the placement platform and engage the positioning key with the groove of the stator, thus achieving rapid clamping and positioning of the stator. This design is highly practical.

[0016] 2. In this utility model, when the positioning toothed plate is engaged with the arc-shaped rack by the spring, the transmission rod cannot rotate. After pulling the T-shaped rod to disengage the positioning toothed plate from the arc-shaped rack, the transmission rod can be driven to rotate, thereby limiting the transmission rod, avoiding misoperation, and improving safety. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1This is a schematic diagram of the overall structure of the stator positioning fixture of this utility model.

[0019] Figure 2 This is a schematic diagram of the telescopic clamping component of the stator positioning fixture of this utility model.

[0020] Figure 3 This is a structurally disassembled diagram of the base, placement platform, and transmission rod of the stator positioning fixture of this utility model.

[0021] Figure 4 This is a schematic diagram of the positioning toothed plate and arc-shaped toothed rack structure of the stator positioning fixture of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Base; 101. Placement platform; 2. Telescopic clamping component; 201. Fixed seat; 202. Rotating shaft; 203. Connecting plate; 204. Positioning key; 205. Telescopic rod; 206. Worm gear; 207. Worm; 3. Transmission rod; 301. T-shaped rod; 302. Spring; 4. Chain; 401. Sprocket; 5. Positioning toothed plate; 6. Arc-shaped rack. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Example 1

[0026] Reference Figure 1-3 This is the first embodiment of the present invention, which provides a stator positioning fixture. The stator positioning fixture includes a base 1, a placement platform 101 rotatably connected to the base 1, and a plurality of telescopic clamping members 2 fixedly on the base 1 in a ring at equal intervals. A transmission rod 3 is rotatably connected to the bottom of the base 1, and the transmission rod 3 is connected to the telescopic clamping members 2 in a transmission connection.

[0027] The telescopic clamping component 2 includes a fixed base 201, a rotating shaft 202 rotatably connected inside the fixed base 201, a connecting plate 203 on one side of the rotating shaft 202, a positioning key 204 connected to one side of the connecting plate 203, and two telescopic rods 205 hinged to the other side. One end of the telescopic rod 205 is rotatably connected to the fixed base 201 and is also connected to the rotating shaft 202 in a transmission manner.

[0028] In the above technical solution, the number of telescopic clamping parts 2 is at least three. By rotating the transmission rod 3, the telescopic clamping parts 2 can be extended and then retracted. Specifically, when the transmission rod 3 rotates to one side, it drives the rotating shaft 202 to rotate, so that the two telescopic rods 205 cooperate to drive the connecting plate 203 to move to one side of the placement platform 101, so that the positioning key 204 can engage with the groove of the stator, thereby completing the positioning of the stator. Similarly, when the transmission rod 3 is rotated in the opposite direction, the connecting plate 203 moves in the opposite direction, so that the positioning key 204 is disconnected from the stator.

[0029] Meanwhile, when the connecting plate 203 approaches the fixed base 201, the distance between two adjacent telescopic clamping parts 2 is greater than the size of the stator, so that the stator can be moved horizontally onto the base 1, simplifying the handling steps and saving physical labor.

[0030] A groove is provided on the base 1, and the groove is coaxial with the base 1. The placement platform 101 is located in the groove.

[0031] In the above technical solution, the top surface of the placement platform 101 is flush with the top surface of the base 1. After the stator is placed on the placement platform 101, the positioning key 204 moves to one side of the stator. By rotating the placement platform 101, the groove of the stator can be quickly aligned with the positioning key 204, so that the positioning key 204 can be engaged with the groove of the stator.

[0032] In some embodiments, multiple ball bearings are rotatably connected within the groove, and the ball bearings make rolling contact with the placement platform 101, thereby improving the smoothness of rotation of the placement platform 101.

[0033] In addition, the top surface of the placement platform 101 is provided with multiple concentric circles of different diameters, so that the stator can be aligned with the corresponding concentric circles according to its own size, and the stator can be quickly centered on the placement platform 101.

[0034] The positioning key 204 has a T-shaped structure and is plugged into the connecting plate 203.

[0035] In the above technical solution, the connecting plate 203 is provided with a slot that matches the positioning key 204. The positioning key 204 is inserted into the connecting plate 203, so that the positioning key 204 can be replaced according to the size of the stator groove, thereby improving applicability.

[0036] The telescopic rod 205 consists of two hinged connecting rods. One end of one connecting rod is fixedly connected to a worm gear 206, and a worm 207 is fixedly connected to the rotating shaft 202. The worm 207 is meshed with the worm gear 206.

[0037] In the above technical solution, the two worm gears 207 are symmetrically arranged. When the rotating shaft 202 drives the worm gears 207 to rotate, the worm gears 207 cooperate with the worm wheel 206 to make the two worm wheels 206 rotate in opposite directions, and cooperate with the telescopic rod 205 to drive the connecting plate 203 to translate, extend or retract.

[0038] The unidirectional transmission and self-locking properties of the worm gear 207 and worm wheel 206 enable the connecting plate 203 to be instantly fixed in position after the rotating shaft 202 rotates at any angle, thus enabling the stator to be clamped and positioned quickly.

[0039] The base 1 has multiple chains 4 at its bottom. Two sprockets 401 are meshed with each other on the chains 4. One sprocket 401 is coaxially connected to the transmission rod 3, and the other sprocket 401 is coaxially connected to the rotating shaft 202.

[0040] In the above technical solution, when the transmission rod 3 rotates, it drives the chain 4 to rotate through a sprocket 401, and the chain 4 drives another sprocket 401 to rotate, thereby driving each rotating shaft 202 to rotate synchronously.

[0041] The diameter of the sprocket 401 connected to the transmission rod 3 is larger than that of the sprocket 401 connected to the rotating shaft 202, so that the transmission rod 3 can complete the rapid extension and retraction of the telescopic clamp 2 when it rotates at a certain angle.

[0042] During use, the stator is placed on the placement platform 101 with the center of the stator coinciding with the center of the placement platform 101. The transmission rod 3 is rotated to one side, and the chain 4 and sprocket 401 work together to drive the rotating shaft 202 to rotate. The worm 207 and worm wheel 206 work together to make the two worm wheels 206 rotate in opposite directions. The worm wheel 206 works with the telescopic rod 205 to drive the connecting plate 203 to extend and translate, so that the positioning part 204 can engage with the groove of the stator to achieve the clamping and positioning of the stator.

[0043] Example 2

[0044] Reference Figure 4 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: a T-shaped rod 301 is slidably connected to one end of the transmission rod 3, a spring 302 is elastically connected between the T-shaped rod 301 and the transmission rod 3, and a positioning tooth plate 5 is fixedly connected to the T-shaped rod 301. An arc-shaped toothed rack 6 is fixedly connected to the bottom of the base 1, and the positioning tooth plate 5 and the arc-shaped toothed rack 6 are engaged.

[0045] In the above technical solution, the center of the arc-shaped rack 6 and the rotation center of the transmission rod 3 are located on the same axis. The positioning tooth plate 5 is provided with a tooth groove that matches the arc-shaped tooth groove 6. When the T-shaped rod 301 is not subjected to external force, the spring 302 drives the positioning tooth plate 5 to engage with the arc-shaped rack 6, so that the transmission rod 3 cannot rotate. This can prevent accidental operation from causing the operating rod 3 to rotate. By pulling the T-shaped rod 301 to move the positioning tooth plate 5 away from the arc-shaped rack 6, the transmission rod 3 can be driven to rotate.

[0046] The remaining structure is the same as that in Example 1.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A stator positioning fixture, characterized in that: Includes a base (1), on which a placement platform (101) is rotatably connected, and on which multiple telescopic clamping members (2) are fixed in a ring at equal intervals, and on which a transmission rod (3) is rotatably connected to the bottom of the base (1), and the transmission rod (3) is connected to the telescopic clamping members (2) in a transmission connection. The telescopic clamp (2) includes a fixed base (201), a rotating shaft (202) is rotatably connected inside the fixed base (201), a connecting plate (203) is provided on one side of the rotating shaft (202), a positioning key (204) is connected to one side of the connecting plate (203), and two telescopic rods (205) are hinged to the other side. One end of the telescopic rod (205) is rotatably connected to the fixed base (201) and is connected to the rotating shaft (202) in a transmission connection.

2. The stator positioning fixture according to claim 1, characterized in that: A groove is provided on the base (1), the groove is coaxial with the base (1), and the placement platform (101) is located in the groove.

3. The stator positioning fixture according to claim 1, characterized in that: The positioning key (204) has a T-shaped structure and is plugged into the connecting plate (203).

4. The stator positioning fixture according to claim 1, characterized in that: The telescopic rod (205) consists of two hinged connecting rods. One end of the connecting rod is fixedly connected to a worm gear (206), and a worm (207) is fixedly connected to the rotating shaft (202). The worm (207) meshes with the worm gear (206).

5. The stator positioning fixture according to claim 1, characterized in that: The base (1) has multiple chains (4) at its bottom. Two sprockets (401) are meshed in the chain (4). One sprocket (401) is coaxially connected to the transmission rod (3), and the other sprocket (401) is coaxially connected to the rotating shaft (202).

6. The stator positioning fixture according to claim 1, characterized in that: One end of the transmission rod (3) is slidably connected to a T-shaped rod (301), and a spring (302) is elastically connected between the T-shaped rod (301) and the transmission rod (3). A positioning toothed plate (5) is fixedly connected to the T-shaped rod (301), and an arc-shaped rack (6) is fixedly connected to the bottom of the base (1). The positioning toothed plate (5) and the arc-shaped rack (6) are engaged.

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