Tool for measuring inner diameter of motor winding

Abstract

The application relates to the technical field of motor windings, and discloses a tool capable of measuring the inner diameter of a motor winding, which comprises two contact base plates, the two contact base plates are symmetrically arranged as half-arc blocks, a pushing mechanism is arranged between the two contact base plates, a positioning mechanism for positioning the pushing mechanism is arranged in the pushing mechanism, and a scale for measuring the pushing distance of the two contact base plates is arranged in the pushing mechanism. The two symmetric half-arc blocks of the contact base plates can better fit the arc shape of the winding inner diameter, and the measurement error is reduced. The pushing mechanism cooperates with the scale to accurately measure the pushing distance of the two contact base plates, and then the winding inner diameter size is obtained, without the need of multi-point detection, and the operation is convenient. Meanwhile, the positioning mechanism can fix the measurement position, the measurement stability is guaranteed, compared with vernier caliper measurement, the inconvenience of multi-point detection and the risk of scratching the winding are avoided, compared with different size round detection tools, the detection efficiency is improved without frequent replacement.

Description

Technical Field

[0001] This application relates to the field of motor winding technology, specifically a tooling for measuring the inner diameter of motor windings. Background Technology

[0002] Motor windings are combinations of copper wire coils installed on the stator or rotor of a motor. They are the core components for the motor to achieve electromechanical energy conversion. Their structural design and winding method directly affect the performance and efficiency of the motor. The tooling for measuring the inner diameter of motor windings is generally a vernier caliper, or a circular gauge of different sizes is used for inspection.

[0003] Currently, when measuring the inner diameter of motor windings using vernier calipers, multiple points need to be inspected, which is extremely inconvenient and can easily scratch the windings. Furthermore, different sized circular gauges need to be frequently changed when measuring different inner diameters of windings, which is quite inconvenient during inspection. Utility Model Content

[0004] The purpose of this application is to provide a tooling for measuring the inner diameter of motor windings, which solves the problems mentioned in the background art, such as the need for multi-point inspection when using vernier calipers to measure the inner diameter of motor windings, which is extremely inconvenient and easily scratches the windings, and the need for frequent replacement of circular gauges of different sizes for different inner diameters of windings, which is also inconvenient during inspection.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This application provides a tooling for measuring the inner diameter of a motor winding, including two contact base plates, which are symmetrically arranged as semi-circular blocks. A pushing mechanism is provided between the two contact base plates, and the pushing mechanism includes a positioning mechanism for positioning the two contact base plates. The pushing mechanism also includes a scale for measuring the pushing distance of the two contact base plates.

[0006] By adopting the above technical solution, and by setting two symmetrical semi-circular contact base plates, the inner diameter of the winding can be better fitted to the arc shape of the winding, reducing measurement errors. The advancing mechanism, in conjunction with the scale, can accurately measure the advancing distance of the two contact base plates, thereby obtaining the inner diameter of the winding. This eliminates the need for multi-point testing, making operation convenient. At the same time, the positioning mechanism can fix the measurement position, ensuring measurement stability. Compared with vernier caliper measurement, it avoids the inconvenience of multi-point testing and the risk of scratching the winding. Compared with circular gauges of different sizes, it eliminates the need for frequent replacements, improving testing efficiency.

[0007] Optionally, the corners of the two contact base plates are respectively set as rounded corners.

[0008] By adopting the above technical solution, and by setting the corners of the two contact base plates to rounded corners, the occurrence of scratches on the winding can be reduced when the contact base plates rotate for measurement.

[0009] Optionally, the propulsion mechanism includes a connecting base and a storage shell, which are respectively fixedly installed on the outer walls of the two contact base plates. A measuring telescopic rod is fixedly installed on the outer wall of the connecting base near the storage shell, and the measuring telescopic rod slides through the inner wall of the storage shell.

[0010] By adopting the above technical solution, the storage shell can store the measuring telescopic rod, and the connecting base can connect and fix the contact base plate and the measuring telescopic rod. The other contact base plate can fix the storage shell, thereby enabling the two contact base plates to extend and retract.

[0011] Optionally, the scale is engraved on the outer wall of the measuring telescopic rod.

[0012] By adopting the above technical solution, a scale is opened on the outer wall of the telescopic rod, which can play a measuring role when measuring the telescopic rod's extension and retraction to a certain length. When the telescopic rod's extension and retraction distance is the shortest, its length with the storage shell and the two contact base plates is fixed, and the fixed length and the length measured by the scale are the inner diameter lengths.

[0013] Optionally, the positioning mechanism includes a spiral groove formed on the inner wall of the storage shell, a positioning bolt is spirally installed on the inner wall of the storage shell located inside the spiral groove, a handle is integrally fixedly connected to the outer wall of the positioning bolt, and the abutting end of the positioning bolt abuts against the outer wall of the measuring telescopic rod.

[0014] By adopting the above technical solution, the handle allows staff to easily tighten the positioning bolt, which then moves spirally in the spiral groove on the inner wall of the housing, thereby positioning the measuring telescopic rod.

[0015] Optionally, the contact base plate, storage shell, connecting base, measuring telescopic rod, positioning bolt and handle are all made of POM plastic.

[0016] By adopting the above technical solution, and using POM plastic materials for the contact base plate, storage shell, connecting base, measuring telescopic rod, positioning bolt and handle, the cost can be effectively reduced. It also has extremely low water absorption, high dimensional stability and is not easily deformed under long-term stress.

[0017] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows: The technical solution of this application sets two symmetrical semi-circular contact base plates, which can better fit the arc shape of the inner diameter of the winding, reducing measurement errors. The advancing mechanism, together with the scale, can accurately measure the advancing distance of the two contact base plates, thereby obtaining the inner diameter of the winding. It eliminates the need for multi-point testing, making operation convenient. At the same time, the positioning mechanism can fix the measurement position and ensure measurement stability. Compared with vernier caliper measurement, it avoids the inconvenience of multi-point testing and the risk of scratching the winding. Compared with circular gauges of different sizes, it eliminates the need for frequent replacement, improving testing efficiency. Attached Figure Description

[0018] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is an axial view schematic diagram of a tooling for measuring the inner diameter of a motor winding according to this application; Figure 2 This is a left-side schematic diagram of a tooling for measuring the inner diameter of a motor winding according to this application; Figure 3 This is a top view schematic diagram of a tooling for measuring the inner diameter of a motor winding according to this application.

[0019] In the diagram: 1. Contact base plate; 2. Propulsion mechanism; 201. Storage shell; 202. Measuring telescopic rod; 203. Connecting base; 3. Positioning mechanism; 301. Spiral groove; 302. Positioning bolt; 303. Handle; 4. Scale; 5. Rounded corner. Detailed Implementation

[0020] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 This application provides a technical solution: a tooling for measuring the inner diameter of a motor winding, including two contact base plates 1, the two contact base plates 1 being symmetrically arranged semi-arc blocks, a pushing mechanism 2 being provided between the two contact base plates 1, a positioning mechanism 3 being provided in the pushing mechanism 2 for positioning, and a scale 4 being provided in the pushing mechanism 2 for measuring the pushing distance of the two contact base plates 1. In the technical solution of this application, by setting two symmetrical semi-circular contact base plates 1, the inner diameter of the winding can be better fitted to the arc shape of the winding, reducing measurement errors. The pushing mechanism 2, together with the scale 4, can accurately measure the pushing distance of the two contact base plates 1, thereby obtaining the inner diameter of the winding. There is no need for multi-point inspection, and the operation is convenient. At the same time, the positioning mechanism 3 can fix the measurement position and ensure measurement stability. Compared with vernier caliper measurement, it avoids the inconvenience of multi-point inspection and the risk of scratching the winding. Compared with circular gauges of different sizes, it does not need to be frequently replaced, thus improving the inspection efficiency.

[0022] In the technical solution of this application, such as Figure 1 and Figure 2 As shown, the propulsion mechanism 2 includes a connecting base 203 and a storage shell 201, which are respectively fixedly installed on the outer walls of the two contact base plates 1. A measuring telescopic rod 202 is fixedly installed on the outer wall of the connecting base 203 near the storage shell 201. The measuring telescopic rod 202 slides through the inner wall of the storage shell 201. The storage shell 201 can store the measuring telescopic rod 202. The connecting base 203 can connect and fix the contact base plate 1 and the measuring telescopic rod 202. The other contact base plate 1 can fix the storage shell 201, thereby promoting the telescopic movement of the two contact base plates 1.

[0023] In the technical solution of this application, such as Figure 1 and Figure 2 As shown, the scale 4 is engraved on the outer wall of the measuring telescopic rod 202. By opening the scale 4 on the outer wall of the measuring telescopic rod 202, it can play a measuring role when the measuring telescopic rod 202 extends or retracts a certain length. When the extension or retraction distance of the measuring telescopic rod 202 is the shortest, its length with respect to the storage shell 201 and the two contact base plates 1 is fixed, and the fixed length and the measuring length of the scale 4 are the inner diameter length.

[0024] In the technical solution of this application, such as Figure 1 and Figure 2 As shown, the corners of the two contact base plates 1 are respectively set as rounded corners 5. By setting the corners of the two contact base plates 1 as rounded corners 5, the occurrence of scratches on the winding can be reduced when the contact base plates 1 are rotated for measurement.

[0025] In the technical solution of this application, such as Figure 1 and Figure 2As shown, the positioning mechanism 3 includes a spiral groove 301 formed on the inner wall of the storage shell 201. A positioning bolt 302 is spirally installed on the inner wall of the storage shell 201 inside the spiral groove 301. A handle 303 is integrally fixedly connected to the outer wall of the positioning bolt 302, and the abutting end of the positioning bolt 302 abuts against the outer wall of the measuring telescopic rod 202. The handle 303 allows the operator to easily turn the positioning bolt 302, thereby causing the positioning bolt 302 to spirally move within the spiral groove 301 on the inner wall of the storage shell 201. The movement allows for positioning of the measuring telescopic rod 202. The contact base 1, storage shell 201, connecting base 203, measuring telescopic rod 202, positioning bolt 302, and handle 303 are all made of POM plastic. By using POM plastic for the contact base 1, storage shell 201, connecting base 203, measuring telescopic rod 202, positioning bolt 302, and handle 303, the cost can be effectively reduced. Furthermore, it has extremely low water absorption, high dimensional stability, and is not easily deformed under long-term stress.

[0026] In use, two symmetrical semi-circular contact base plates 1 are placed at the inner diameter of the motor winding. Because their corners are rounded 5, the winding is not easily scratched during rotation measurement. By pushing the two contact base plates 1, the measuring telescopic rod 202 fixed on the connecting base 203 slides inside the storage shell 201. The storage shell 201 houses the measuring telescopic rod 202. The connecting base 203 and the other contact base plate 1 fix the measuring telescopic rod 202 and the storage shell 201 respectively, realizing telescopic advancement. The scale 4 engraved on the outer wall of the measuring telescopic rod 202 displays the advancement distance as it telescopics. When the appropriate measurement position is reached, the positioning bolt 302 in the spiral groove 301 inside the storage shell 201 is turned by the handle 303, so that its abutting end abuts against the outer wall of the measuring telescopic rod 202, fixing the measurement position. The inner diameter of the winding is obtained according to the measured length and fixed length of the scale 4. Moreover, all parts of this tooling are made of POM plastic, which is low in cost and has high dimensional stability.

Claims

1. A tooling for measuring the inner diameter of a motor winding, characterized in that: It includes two contact base plates (1), the two contact base plates (1) are symmetrically arranged semi-arc blocks, a propulsion mechanism (2) is provided between the two contact base plates (1), a positioning mechanism (3) is provided in the propulsion mechanism (2) for positioning, and a scale (4) is provided in the propulsion mechanism (2) for measuring the propulsion distance of the two contact base plates (1).

2. The tooling for measuring the inner diameter of a motor winding according to claim 1, characterized in that, The corners of the two contact base plates (1) are respectively set as rounded corners (5).

3. The tooling for measuring the inner diameter of a motor winding according to claim 1, characterized in that, The propulsion mechanism (2) includes a connecting base (203) and a storage shell (201) respectively fixedly installed on the outer wall of the two contact base plates (1). A measuring telescopic rod (202) is fixedly installed on the outer wall of the connecting base (203) near the storage shell (201). The measuring telescopic rod (202) slides through the inner wall of the storage shell (201).

4. The tooling for measuring the inner diameter of a motor winding according to claim 3, characterized in that, The scale (4) is engraved on the outer wall of the measuring telescopic rod (202).

5. The tooling for measuring the inner diameter of a motor winding according to claim 3, characterized in that, The positioning mechanism (3) includes a spiral groove (301) formed on the inner wall of the storage shell (201). A positioning bolt (302) is spirally installed on the inner wall of the storage shell (201) located inside the spiral groove (301). A handle (303) is integrally fixedly connected to the outer wall of the positioning bolt (302), and the abutting end of the positioning bolt (302) abuts against the outer wall of the measuring telescopic rod (202).

6. The tooling for measuring the inner diameter of a motor winding according to claim 5, characterized in that, The contact base plate (1), storage shell (201), connecting base (203), measuring telescopic rod (202), positioning bolt (302) and handle (303) are all made of POM plastic.

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