Closed-loop motor encoder test tool

Abstract

The utility model discloses a closed-loop motor encoder testing tool, which relates to the technical field of closed-loop motor testing and comprises a support body composed of a base, a fixing column, a connecting plate, a first connecting column and a top plate, and a square positioning groove for positioning and placing a closed-loop motor to be tested is formed in the top of the top plate. The upper and lower ends of the top plate are provided with clamping assemblies which are used for rapidly fixing a to-be-tested closed-loop motor. The clamping assembly comprises a rotating ring, a second connecting column, an arc-shaped limiting block, an arc-shaped guide groove and a rotating handle. According to the utility model, through the arrangement of the clamping assembly, during the detection operation of the closed-loop motor to be detected, the motor main body can be clamped and unlocked only by pushing the rotating handle, the overall operation is simple and convenient, and the detection efficiency of the closed-loop motor encoder can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of closed-loop motors, in particular to a closed-loop motor encoder testing tool. Background Art

[0002] A closed-loop motor is a high-precision servo motor. By installing a position sensor such as an encoder or a resolver on the motor shaft, the actual position of the motor is fed back to the control system. Closed-loop stepper motors have the advantages of high precision, high stability, and low vibration, and are suitable for occasions with high precision requirements.

[0003] When producing and assembling a closed-loop motor, after the encoder is installed on the motor, the accuracy of the encoder needs to be tested. At this time, the closed-loop motor to be tested needs to be connected to the output end of a good closed-loop motor. The output shaft of the closed-loop motor to be tested is driven to rotate by the operation of the good closed-loop motor. At the same time, the encoder output signals on the two closed-loop motors are monitored and compared. In this way, the accuracy of the encoder on the closed-loop motor to be tested can be quickly determined. In this process, the closed-loop motor to be tested needs to be fixed. Based on this, a closed-loop motor encoder test fixture is provided. Utility Model Content

[0004] The utility model aims to provide a closed-loop motor encoder testing tool to achieve the purpose of quickly fixing a closed-loop motor to be tested.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a closed-loop motor encoder test fixture, comprising a bracket body consisting of a base, a fixing column, a connecting plate, a first connecting column and a top plate, wherein the fixing column is welded and fixed at four end corners of the top of the base, the connecting plate is distributed on the top of the fixing column, the bottom of the first connecting column passes through the connecting plate and is threadedly connected to the fixing column to fix the connecting plate, the top plate is fixed to the top of the first connecting column by bolts, a square positioning groove for positioning and placing the closed-loop motor to be tested is provided on the top of the top plate, and clamping components for quickly fixing the closed-loop motor to be tested are distributed at the upper and lower ends of the top plate;

[0006] The clamping assembly includes a rotating ring, a second connecting column, an arc-shaped limit block, an arc-shaped guide groove, and a rotating handle;

[0007] The rotating ring is distributed at the bottom of the top plate, and four second connecting columns are provided. The four second connecting columns are distributed in an annular shape and fixed at the top of the rotating ring, and the second connecting columns penetrate to the top of the top plate and are fixedly connected to the arc-shaped limit block;

[0008] The arc-shaped guide groove is provided at the position where the top plate contacts the second connecting column, and is used to provide space and limit for the rotation of the second connecting column;

[0009] The rotating handle is fixed to the outside of the rotating ring. The rotating handle pushes the rotating ring to drive multiple arc-shaped limit blocks to the four end corners of the square positioning groove respectively, so as to achieve the end angle limitation of the closed-loop motor to be tested in the inner part of the square positioning groove.

[0010] 2. As a further solution of the utility model: the closed-loop motor to be tested is composed of a motor body, an encoder, and a raised mounting portion, the encoder is mounted at the tail of the motor body, the raised mounting portion is formed at the four end corners of the front end of the motor body, the front end outer wall of the motor body matches the inner wall of the square positioning groove, and when the front end of the motor body is inserted into the inner side of the square positioning groove, the top of the raised mounting portion is flush with the top of the top plate;

[0011] The arc-shaped limiting block moves to above the raised mounting portion to limit the upward movement of the motor body.

[0012] As a further solution of the utility model: detection drive components are distributed at the upper and lower ends of the connecting plate, and the detection drive components include a good closed-loop motor and a coupling;

[0013] The good closed-loop motor is installed at the bottom of the connecting plate, and the output end of the good closed-loop motor passes through the top of the connecting plate and is fixedly connected to the coupling;

[0014] A through hole penetrating the bottom of the top plate is provided at the center of the bottom of the square positioning groove, and the through hole is aligned with the coupling;

[0015] The output end of the motor body is inserted into the inner side of the coupling through the through hole, and the good closed-loop motor drives the output shaft of the motor body to rotate synchronously through the coupling.

[0016] As a further solution of the utility model: an arc-shaped rubber block is bonded and fixed to the bottom of the arc-shaped limiting block, and the bottom of the arc-shaped rubber block is tightly fitted with the top of the top plate.

[0017] As a further solution of the utility model: two rotating handles are symmetrically arranged with the rotating ring as the center, and grooves are formed on both sides of the connecting plate and the top plate, and the rotating area of ​​the rotating handle is located inside the groove.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] By setting up the clamping assembly, during the detection operation of the closed-loop motor to be tested, the clamping and unlocking of the motor body only requires pushing the rotating handle. The overall operation is simple and convenient, and can effectively improve the detection efficiency of the closed-loop motor encoder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is the structural explosion diagram of the utility model;

[0022] Figure 3 It is a structural explosion diagram of the clamping assembly and the top plate of the utility model.

[0023] In the figure: 1. bracket body; 101. base; 102. fixing column; 103. connecting plate; 104. first connecting column; 105. top plate; 106. square positioning groove; 107. through hole; 2. detection drive assembly; 201. good closed-loop motor; 202. coupling; 3. closed-loop motor to be tested; 301. motor body; 302. encoder; 303. raised mounting portion; 4. clamping assembly; 401. rotating ring; 402. second connecting column; 403. arc-shaped limit block; 404. arc-shaped guide groove; 405. rotating handle; 406. arc-shaped rubber block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figures 1 to 3 In an embodiment of the utility model, a closed-loop motor encoder test fixture includes a bracket body 1 composed of a base 101, a fixing column 102, a connecting plate 103, a first connecting column 104 and a top plate 105. The fixing column 102 is welded and fixed at the four end corners of the top of the base 101, and the connecting plate 103 is distributed on the top of the fixing column 102. The bottom of the first connecting column 104 passes through the connecting plate 103 and is threadedly connected with the fixing column 102 to fix the connecting plate 103. The top plate 105 is fixed to the top of the first connecting column 104 by bolts. A square positioning groove 106 for positioning and placing the closed-loop motor 3 to be tested is opened on the top of the top plate 105. The upper and lower ends of the top plate 105 are provided with clamping components 4 for quickly fixing the closed-loop motor 3 to be tested.

[0026] The clamping assembly 4 includes a rotating ring 401, a second connecting column 402, an arc-shaped limit block 403, an arc-shaped guide groove 404, and a rotating handle 405;

[0027] The rotating ring 401 is distributed at the bottom of the top plate 105, and four second connecting pillars 402 are provided. The four second connecting pillars 402 are distributed in an annular shape and fixed at the top of the rotating ring 401, and the second connecting pillars 402 penetrate to the top of the top plate 105 and are fixedly connected to the arc-shaped limit block 403;

[0028] The arc-shaped guide groove 404 is provided at the position where the top plate 105 contacts the second connecting column 402, and is used to provide space and limit for the rotation of the second connecting column 402;

[0029] The rotating handle 405 is fixed to the outside of the rotating ring 401. The rotating handle 405 pushes the rotating ring 401 to drive the multiple arc-shaped limit blocks 403 to the four end corners of the square positioning groove 106 respectively, so as to realize the end angle limit of the closed-loop motor 3 to be tested being clamped in the inner part of the square positioning groove 106;

[0030] The closed-loop motor 3 is composed of a motor body 301, an encoder 302, and a raised mounting portion 303. The encoder 302 is mounted at the tail of the motor body 301. The raised mounting portion 303 is formed at the four end corners of the front end of the motor body 301. The front end outer wall of the motor body 301 matches the inner wall of the square positioning groove 106. When the front end of the motor body 301 is inserted into the inner side of the square positioning groove 106, the top of the raised mounting portion 303 is flush with the top of the top plate 105.

[0031] The arc-shaped limiting block 403 moves to the upper part of the protruding mounting portion 303 to limit the upward movement of the motor body 301;

[0032] The upper and lower ends of the connecting plate 103 are provided with a detection drive assembly 2, and the detection drive assembly 2 includes a good closed-loop motor 201 and a coupling 202;

[0033] The good closed-loop motor 201 is installed at the bottom of the connecting plate 103, and the output end of the good closed-loop motor 201 passes through the top of the connecting plate 103 and is fixedly connected to the coupling 202;

[0034] A through hole 107 penetrating the bottom of the top plate 105 is provided at the center of the bottom of the square positioning groove 106, and the through hole 107 is aligned with the coupling 202;

[0035] The output end of the motor body 301 is inserted into the inner side of the coupling 202 through the through hole 107, and the good closed-loop motor 201 drives the output shaft of the motor body 301 to rotate synchronously through the coupling 202;

[0036] An arc-shaped rubber block 406 is bonded and fixed to the bottom of the arc-shaped limiting block 403 , and the bottom of the arc-shaped rubber block 406 is tightly fitted to the top of the top plate 105 .

[0037] In this embodiment: it should be supplemented that: the coupling 202 is formed with a limiting protrusion on the inner side that matches the keyway on the outer side of the output end of the closed-loop motor 3 to be tested;

[0038] After the encoder 302 is installed on the motor body 301, the accuracy of the encoder 302 needs to be tested. The operation steps are as follows:

[0039] Insert the output end of the motor body 301 downwardly into the through hole 107, and insert the output end of the motor body 301 into the through hole 107 and into the inner side of the coupling 202. The keyway on the outer side of the output end of the motor body 301 engages with the limiting protrusion, and the front end of the motor body 301 is inserted into the inner side of the square positioning groove 106. The four protruding mounting parts 303 are aligned with the four end corners of the square positioning groove 106, and the top of the square positioning groove 106 is flush with the top of the top plate 105.

[0040] Then, the rotating handle 405 is rotated, and the rotating handle 405 drives the plurality of second connecting columns 402 to move synchronously along the track of the arc guide groove 404 through the rotating ring 401, and the second connecting column 402 drives the arc limit block 403 to move above the raised mounting portion 303. At this time, the arc rubber block 406 is tightly attached to the top of the raised mounting portion 303, thereby realizing the upward movement limit of the motor body 301, and cooperating with the square positioning groove 106 to limit the rotation of the motor body 301, that is, the motor body 301 is fixed;

[0041] Then, the output wire of the encoder 302 is connected to the control terminal, and then the good closed-loop motor 201 is started. The good closed-loop motor 201 drives the output shaft of the closed-loop motor 3 to be tested to rotate synchronously through the coupling 202. At this time, the monitoring signals of the encoder on the good closed-loop motor 201 and the encoder 302 on the closed-loop motor 3 to be tested are synchronously transmitted to the control terminal. At this time, by comparing the output signals of the two encoders, it can be determined whether the encoder 302 on the closed-loop motor 3 to be tested is running accurately;

[0042] After the test is completed, the motor body 301 can be unlocked by pushing the rotating handle 405 in the reverse direction, and then it can be removed. Through the cooperation of the above multiple parts, during the test operation of the closed-loop motor 3 to be tested, the clamping and unlocking of the motor body 301 only needs to push the rotating handle 405, and the overall operation is simple and convenient.

[0043] It should also be noted that the arc-shaped rubber block 406 has a high hardness and can ensure the fixed stability of the motor body 301. The arc-shaped rubber block 406 mainly increases the rotation resistance. The friction between the arc-shaped rubber block 406 and the top plate 105 and the raised mounting portion 303 can keep the arc-shaped rubber block 406 stable and non-rotating.

[0044] Please refer to Figures 1 to 3 Two rotating handles 405 are symmetrically arranged around the rotating ring 401, and grooves are formed on both sides of the connecting plate 103 and the top plate 105, and the rotating area of ​​the rotating handle 405 is located inside the groove.

[0045] In this embodiment: the two rotating handles 405 are provided so that the device can be operated in both the forward and reverse directions when in use, and the groove is provided so that the operation of the rotating handle 405 will not be interfered with, and the length of the rotating handle 405 can be set not to exceed the outside of the groove, that is, the end of the rotating handle 405 does not protrude to the outside of the connecting plate 103 and the top plate 105, so that the whole device maintains a rectangular appearance and is easy to store.

[0046] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A closed-loop motor encoder test fixture, comprising a bracket body (1) consisting of a base (101), a fixing column (102), a connecting plate (103), a first connecting column (104) and a top plate (105), wherein the fixing column (102) is welded and fixed at four end corners of the top of the base (101), the connecting plate (103) is distributed on the top of the fixing column (102), the bottom of the first connecting column (104) passes through the connecting plate (103) and is threadedly connected to the fixing column (102) to fix the connecting plate (103), and the top plate (105) is fixed to the top of the first connecting column (104) by bolts, characterized in that: A square positioning groove (106) for positioning and placing the closed-loop motor (3) to be tested is provided on the top of the top plate (105), and clamping components (4) for quickly fixing the closed-loop motor (3) to be tested are provided at the upper and lower ends of the top plate (105); The clamping assembly (4) comprises a rotating ring (401), a second connecting column (402), an arc-shaped limit block (403), an arc-shaped guide groove (404), and a rotating handle (405); The rotating ring (401) is distributed at the bottom of the top plate (105), and four second connecting columns (402) are provided. The four second connecting columns (402) are distributed in a ring shape and fixed on the top of the rotating ring (401), and the second connecting columns (402) penetrate to the top of the top plate (105) and are fixedly connected to the arc-shaped limit block (403); The arc-shaped guide groove (404) is provided at a position where the top plate (105) contacts the second connecting column (402), and is used to provide space and limit for the rotation of the second connecting column (402); The rotating handle (405) is fixed to the outside of the rotating ring (401). The rotating handle (405) pushes the rotating ring (401) to drive the plurality of arc-shaped limit blocks (403) to the four end corners of the square positioning groove (106) respectively, so as to achieve the end corner limit of the closed-loop motor (3) to be tested being clamped in the inner part of the square positioning groove (106).

2. A closed-loop motor encoder test fixture according to claim 1, characterized in that: The closed-loop motor (3) to be tested is composed of a motor body (301), an encoder (302), and a raised mounting portion (303); the encoder (302) is mounted on the rear of the motor body (301); the raised mounting portion (303) is formed at four end corners of the front end of the motor body (301); the front end outer wall of the motor body (301) matches the inner wall of the square positioning groove (106); when the front end of the motor body (301) is inserted into the inner side of the square positioning groove (106), the top of the raised mounting portion (303) is flush with the top of the top plate (105); The arc-shaped limiting block (403) moves to the top of the raised mounting portion (303) to limit the upward movement of the motor body (301).

3. A closed-loop motor encoder test fixture according to claim 2, characterized in that: The upper and lower ends of the connecting plate (103) are provided with detection drive components (2), and the detection drive components (2) include a good closed-loop motor (201) and a coupling (202); The good closed-loop motor (201) is installed at the bottom of the connecting plate (103), and the output end of the good closed-loop motor (201) passes through the top of the connecting plate (103) and is fixedly connected to the coupling (202); A through hole (107) penetrating the bottom of the top plate (105) is provided at the center of the bottom of the square positioning groove (106), and the through hole (107) is aligned with the coupling (202); The output end of the motor body (301) is inserted into the inner side of the coupling (202) through the through hole (107), and the good closed-loop motor (201) drives the output shaft of the motor body (301) to rotate synchronously through the coupling (202).

4. A closed-loop motor encoder test fixture according to claim 1, characterized in that: An arc-shaped rubber block (406) is bonded and fixed to the bottom of the arc-shaped limiting block (403), and the bottom of the arc-shaped rubber block (406) is tightly fitted to the top of the top plate (105).

5. A closed-loop motor encoder test fixture according to claim 1, characterized in that: Two rotating handles (405) are symmetrically arranged with the rotating ring (401) as the center, and grooves are formed on both sides of the connecting plate (103) and the top plate (105), and the rotating area of ​​the rotating handle (405) is located inside the groove.

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