Auxiliary positioning clamp for rotor assembly in motor production

Abstract

The utility model provides a kind of auxiliary positioning fixture for rotor assembly of motor production, including base, middle clamping body, two side clamping bodies are set on the base, the head end of the middle clamping body is configured as clamping groove, two side clamping bodies are symmetrically set to the head end outside of middle clamping body with the central axis of middle clamping body as center, the head end of the side clamping body is configured as half-arc clamping groove, and driving element is arranged between side clamping body and base, the position transformation of side clamping body relative to clamping groove is realized by driving element, and the movement path of side clamping body passes through the center of clamping groove.The utility model is simple in structure, convenient to use, three-point profiling clamping is formed by middle clamping body and two side clamping bodies, replaces artificial fixing mode, preliminary centering is provided by the clamping groove of middle clamping body, two symmetrical side clamping bodies are synchronously moved to the center by driving element, form three-point clamping structure, replace manual operation, greatly improve clamping speed and stability.

Description

Technical Field

[0001] This utility model relates to the field of motor rotor assembly technology, specifically, it demonstrates an auxiliary positioning fixture for motor rotor assembly. Background Technology

[0002] With the continuous acceleration of industrialization, people's demand for motors is constantly increasing. DC motors are a very important type of motor. They mainly consist of a housing, rotor, and stator. The rotor mainly consists of a motor shaft, iron core, and steering gear. During the production process, assembly tooling is required for assembly. The assembly tooling basically has a mold for fixing the iron core, which facilitates assembly.

[0003] During the production process, the motor rotor needs to be fixed to ensure its stability and prevent shaking from affecting the installation accuracy. However, the existing fixing method is to fix the motor rotor manually. This manual operation results in low fixing efficiency, is time-consuming and labor-intensive, and reduces production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide an auxiliary positioning fixture for rotor assembly in motor production. It has a simple and practical structure and good performance.

[0005] The technical solution is as follows:

[0006] An auxiliary positioning fixture for rotor assembly in motor production includes a base, on which a central clamping body and two side clamping bodies are disposed. The head end of the central clamping body is configured as a clamping groove. The two side clamping bodies are symmetrically arranged on the outer side of the head end of the central clamping body with the central axis of the central clamping body as the center. The head end of the side clamping bodies is configured as a semi-arc-shaped slot. A driving component is disposed between the side clamping bodies and the base. The driving component realizes the position change of the side clamping bodies relative to the clamping groove. The movement path of the side clamping bodies passes through the center of the clamping groove.

[0007] In addition, the above embodiments of this utility model may also have the following additional technical features:

[0008] According to one embodiment of the present invention, it further includes an XZ-axis drive assembly, wherein the base is mounted on the Z-axis output end of the XZ-axis drive assembly. The XZ-axis drive assembly enables the fixture to move in both horizontal (X-axis) and vertical (Z-axis) directions, adapting to the rotor assembly requirements of different workstations (such as core pressing, steering gear welding, etc.), suitable for multi-process operations, further freeing up manpower, and supporting automated production line deployment.

[0009] According to one embodiment of this utility model, a laser sensor is provided on the outer wall of the side clamp, with the laser beam direction of the sensor pointing towards the center of the clamping groove. The laser sensor detects the position of the rotor from the side clamp in real time, preventing excessive movement of the side clamp.

[0010] According to one embodiment of this utility model, a pressure sensor is embedded at the head end of the side clamp. The pressure sensor dynamically monitors the clamping force to prevent rotor deformation caused by excessive clamping or rotor shaking caused by excessively loose clamping force.

[0011] According to one embodiment of this utility model, the inner wall surface of the clamping groove and the inner wall surface of the semi-circular slot are both covered with an anti-slip layer on one side. The anti-slip layer (such as polyurethane or rubber) increases the coefficient of friction, prevents the rotor from shifting due to inertia during assembly, and also reduces wear caused by contact with the rotor during clamping, protecting the rotor surface coating.

[0012] According to one embodiment of this utility model, the side clamp is slidably mounted on the base via a slider rail assembly. This ensures that the movement path of the side clamp does not deviate, thus improving clamping accuracy.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: it replaces the manual fixing method by using a three-point contour clamping structure formed by the middle clamp and the two side clamps. The clamping groove of the middle clamp provides initial centering, and the two symmetrical side clamps move synchronously towards the center through the driving component to form a three-point clamping structure. This utility model has a simple structure, is easy to use, and has low cost. It replaces manual operation and greatly improves clamping speed and stability. Attached Figure Description

[0014] Figure 1 This is a simplified schematic diagram of an auxiliary positioning fixture for rotor assembly in motor production, according to an embodiment of the present invention.

[0015] Figure 2 This is a partial schematic diagram of the intermediate clamp and the side clamp in an embodiment of the present invention;

[0016] Figure 3 This is a simplified schematic diagram of an auxiliary positioning fixture for assembling a rotor in motor production, as shown in another embodiment of this utility model.

[0017] The relevant markings in the attached diagram are: 1-base, 2-intermediate clamp, 3-side clamp, 4-drive component, 5-laser sensor, 6-pressure sensor, 7-XZ axis drive assembly, 8-slider rail assembly, 9-anti-slip layer, 21-clamping groove, 31-semi-arc slot. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1 and Figure 2 As shown in the figure, this utility model embodiment proposes an auxiliary positioning fixture for rotor assembly in motor production. Specifically, it includes a horizontal base 1, an intermediate clamp 2 and two side clamps 3 on the top surface of the base 1. The head end of the intermediate clamp 2 is constructed as a clamping groove 21, which is semi-circular and matches the curvature of the rotor. The two side clamps 3 are symmetrically arranged on the outer side of the head end of the intermediate clamp 2 with the central axis of the intermediate clamp 2 as the center. The head end of the side clamps 3 is constructed as a semi-arc slot 31, and a driving member 4 is provided between the side clamps 3 and the base 1. That is to say, the side clamps 3 are movably arranged on the top surface of the base 1. The position change of the side clamps 3 relative to the clamping groove 21 is realized by the driving member 4. The driving member 4 can be a cylinder. The movement path of the side clamps 3 passes through the center of the clamping groove 21.

[0020] The clamping groove 21 of the intermediate clamp 2 provides initial centering, while the two symmetrical side clamps 3 move synchronously toward the center through the drive component 4, so that the semi-arc slot 31 contacts the outer wall of the rotor, thereby forming a three-point clamping structure, and finally the rotor is fixed in a vertical position between the intermediate clamp and the two side clamps.

[0021] Among them, a pressure sensor 6 is embedded at the head end of the side clamp 3. The pressure sensor dynamically monitors the clamping force of the side clamp on the outer wall of the rotor to prevent rotor deformation caused by excessive clamping or rotor shaking caused by excessive clamping force. When the pressure sensor detects that the clamping force exceeds the preset value, the external PLC controls the drive to retract to prevent rotor deformation.

[0022] Among them, a laser sensor 5 is installed on the outer wall of the side clamp 3. The laser beam of the laser sensor 5 is directed toward the center of the clamping groove 21. The laser sensor is used to detect the distance between the rotor and the upper semi-circular slot of the side clamp in real time, so as to avoid the side clamp moving too much inward and damaging the rotor.

[0023] The inner wall of the clamping groove 21 and the inner wall of the semi-circular slot 31 are both covered with an anti-slip layer 9 on one side. The designed anti-slip layer, such as polyurethane or rubber, can increase the friction coefficient when the clamping groove / semi-circular slot contacts the rotor, prevent the rotor in a vertical position from shifting due to inertia during assembly, and reduce wear when in contact with the rotor, thus protecting the rotor surface coating.

[0024] The side clamp 3 is slidably mounted on the base 1 via a slider rail assembly 8. The slider rail assembly is used to ensure that the movement path of the side clamp does not deviate, thereby improving the clamping accuracy of the side clamp.

[0025] Other possible implementations, such as Figure 3 As shown, the base 1 is mounted on the Z-axis output end of an XZ-axis drive assembly 7. The XZ-axis drive assembly 7 enables the fixture to move horizontally (X-axis) and vertically (Z-axis), adapting to the rotor assembly requirements of different workstations (such as core pressing, steering gear welding, etc.). It is suitable for multi-process operations, further freeing up manpower and supporting automated production line deployment.

[0026] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A rotor assembly aid positioning jig for motor production, characterized by, It includes a base (1), the base (1) is provided with an intermediate clamping body (2), two side clamping bodies (3), the head end of the intermediate clamping body (2) is configured to clamp a groove (21), two side clamping bodies (3) are symmetrically arranged on the outside of the head end of the intermediate clamping body (2) with the central axis of the intermediate clamping body (2) as the center, the head end of the side clamping body (3) is configured to a semicircular clamping groove (31), and a driving element (4) is arranged between the side clamping body (3) and the base (1), the position of the side clamping body (3) relative to the clamping groove (21) is changed by the driving element (4), and the movement path of the side clamping body (3) passes through the center of the clamping groove (21).

2. A fixture as claimed in claim 1, wherein, It also includes an X-Z axis driving assembly (7), and the base (1) is installed on the Z axis output end of the X-Z axis driving assembly (7).

3. The auxiliary positioning fixture for rotor assembly in motor production as claimed in claim 1 wherein, The outer wall of the side clamping body (3) is provided with a laser sensor (5), and the beam direction of the laser sensor (5) is directed to the center of the clamping groove (21).

4. The auxiliary positioning fixture for rotor assembly in motor production as claimed in claim 1 wherein, The head end of the side clamping body (3) is embedded with a pressure sensor (6).

5. The auxiliary positioning fixture for rotor assembly in motor production as claimed in claim 1 wherein, The inner wall surface of the clamping groove (21) and the inner wall surface of the semicircular clamping groove (31) are both paved with a side anti-skid layer (9).

6. The auxiliary positioning fixture for rotor assembly in motor production as claimed in claim 1 wherein, The side clamping body (3) is slidably arranged on the base (1) through a sliding block sliding rail group (8).

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