VCM motor efficient detection tool

Abstract

The utility model is suitable for the technical field of motor detection, and provides a VCM motor high-efficiency detection tool, through a coarse and fine combined positioning design and a self-adaptive clamping structure, the motor clamping stability and the detection precision are significantly improved, and the VCM motor high-efficiency detection tool has multiple beneficial effects that the coarse positioning assembly flexibly adjusts the spacing of a limiting plate through an adjusting unit; the device can be quickly adapted to VCM motors of different sizes, preliminary positioning is achieved, the adjustment amplitude of subsequent fine positioning is reduced, and the clamping preparation time is shortened; according to the fine positioning assembly, arc-shaped faces of symmetrical movable parts are matched with a first overturning clamping base and a second overturning clamping base, when the driving unit drives the movable parts to move relatively, the arc-shaped faces can be automatically attached to a motor shell, and the first overturning clamping base and the second overturning clamping base can be adaptive to the outline of the motor through rotation adaptation of a multi-section type arc-shaped structure; uniform clamping force is formed from the two sides, rigid and stable clamping is achieved, the problem of slight shaking of traditional elastic clamping is solved, and the stability of the detection process is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of motor testing technology, specifically a high-efficiency testing fixture for VCM motors. Background Technology

[0002] In the field of micro motor testing, VCM motors, as precision drive components, directly affect the operational stability of end-user equipment due to their assembly accuracy and performance parameters. Efficient testing fixtures are crucial for ensuring their quality. For example, the cycloidal hydraulic motor testing device disclosed in CN 222577048 U uses an elastic clamping structure to fix the motor and integrates output shaft length and offset detection functions, thus improving the integration of testing capabilities.

[0003] However, this design is difficult to adapt to the precision testing requirements of VCM motors: it uses a spring-driven top plate for upper and lower clamping, and the non-rigid fixation is prone to causing the motor to undergo micro-displacement during the testing process, resulting in insufficient clamping stability; moreover, the upper and lower clamping method cannot ensure that the motor shaft is aligned with the testing reference, making it difficult to guarantee that it is clamped in the center position, which directly affects the testing accuracy of key parameters such as the concentricity and perpendicularity of the output shaft.

[0004] Therefore, developing a high-efficiency VCM motor inspection fixture with rigid and stable clamping and precise center positioning has become an urgent need to improve inspection accuracy and shorten inspection time. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency testing fixture for VCM motors to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-efficiency testing fixture for VCM motors includes a testing table, a testing component mounted on the testing table, and a high-speed camera. The testing table is also equipped with a clamping mechanism for clamping the motor. The clamping mechanism includes a coarse positioning component and a fine positioning component. The coarse positioning component includes a pair of limiting plates arranged side by side on the testing table and an adjustment unit for adjusting the distance between the two limiting plates. One limiting plate is fixedly mounted on the testing table, and the other limiting plate is movably set through the adjustment unit. The fine positioning component includes movable parts symmetrically arranged on both sides of the two limiting plates and a driving unit for driving the two movable parts to move relative to each other. The adjacent surfaces of the two movable parts are symmetrically opened with arc-shaped surfaces. A first flip clamp is rotatably mounted in the arc-shaped surface, and a second flip clamp is symmetrically rotatably mounted on the first flip clamp. Both the first flip clamp and the second flip clamp are arc-shaped structures.

[0008] As a further embodiment of this utility model: multiple first flip clamps are provided, and the multiple first flip clamps are arranged at equal intervals in the arc-shaped surface.

[0009] As a further embodiment of this utility model: the side of the second flip clamp is also provided with a plurality of anti-slip teeth, which are made of rubber.

[0010] As a further embodiment of this utility model: the adjustment assembly includes a screw and a nut installed on the screw. A strip groove is provided on the top surface of the detection platform. The screw is rotatably disposed in the strip groove, and a knob is installed at the end of the screw that extends outside the detection platform. The nut is slidably disposed in the strip groove, and a limiting plate is fixedly installed on the nut.

[0011] As a further embodiment of this utility model: the driving unit includes a bidirectional lead screw rotatably disposed in the testing table and guide rods symmetrically disposed on both sides of the bidirectional lead screw. The bidirectional lead screw is driven by a motor disposed in the testing table, and threaded sleeves are symmetrically installed on the two threaded parts of the bidirectional lead screw. The guide rods are fixedly disposed, and sliding sleeves are slidably disposed on the guide rods. The movable parts are fixedly installed on the threaded sleeves and sliding sleeves. The top surface of the testing table is also provided with a strip-shaped hole for the threaded sleeves and sliding sleeves to slide.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention significantly improves motor clamping stability and detection accuracy through a combination of coarse and fine positioning design and an adaptive clamping structure, offering multiple benefits: The coarse positioning component flexibly adjusts the spacing between the limit plates via an adjustment unit, quickly adapting to VCM motors of different sizes to achieve initial positioning, reducing the adjustment range for subsequent fine positioning and shortening clamping preparation time; The fine positioning component uses the arc-shaped surfaces of symmetrical moving parts in conjunction with the first and second flip clamps. When the drive unit moves the moving parts relative to each other, the arc-shaped surfaces automatically conform to the motor housing, while the first and second flip clamps, through the rotational adaptation of a multi-segment arc structure, adapt to the motor's outline, forming a uniform clamping force from both sides to achieve rigid and stable clamping, solving the micro-wobbling problem of traditional elastic clamping and ensuring the stability of the detection process. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of a high-efficiency testing fixture for VCM motors;

[0015] Figure 2 for Figure 1 Top view;

[0016] Figure 3 for Figure 1 A bottom view;

[0017] Figure 4 for Figure 1 Enlarged view of the moving parts;

[0018] In the diagram: 1. Testing platform; 2. Testing component; 3. High-speed camera; 4. Limiting plate; 5. Moving part; 6. First flip clamp; 7. Second flip clamp; 8. Anti-slip tooth; 9. Screw; 10. Knob; 11. Slotted groove; 12. Nut; 13. Two-way lead screw; 14. Guide rod; 15. Screw sleeve; 16. Sliding sleeve; 17. Slotted hole. Detailed Implementation

[0019] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0020] Example 1

[0021] Please see Figure 1-4 A high-efficiency testing fixture for VCM motors includes a testing table 1, which provides a testing reference plane and a mounting base for the mechanism. A testing component 2 and a high-speed camera 3 are mounted on the testing table 1. The testing component 2 performs performance testing, and the high-speed camera 3 captures the dynamic displacement of the motor. The testing table 1 is also equipped with a clamping mechanism for clamping the motor. The clamping mechanism achieves rigid fixation and axial positioning, solving the micro-displacement problem in the prior art. The clamping mechanism includes a coarse positioning component and a fine positioning component.

[0022] The coarse positioning assembly includes a pair of limiting plates 4 arranged side by side on the inspection table 1, wherein the limiting plates 4 initially constrain the length direction of the motor, and an adjustment unit for adjusting the distance between the two limiting plates 4, wherein the adjustment unit is adapted to motors of different sizes, one of the limiting plates 4 is fixedly installed on the inspection table 1, and the other limiting plate 4 is movably set through the adjustment unit;

[0023] The precision positioning component includes movable parts 5 symmetrically and movably arranged on both sides of two limiting plates 4, wherein the movable parts 5 achieve precision positioning, and a drive unit that drives the relative movement of the two movable parts 5. The adjacent surfaces of the two movable parts 5 are symmetrically provided with arc-shaped surfaces, wherein the arc-shaped surfaces fit the cylindrical shell of the motor, and a first flip clamp 6 is rotatably installed in the arc-shaped surfaces. A second flip clamp 7 is symmetrically and rotatably arranged on the first flip clamp 6. Both the first flip clamp 6 and the second flip clamp 7 are arc-shaped structures, wherein the first flip clamp 6 and the second flip clamp 7 adapt to the curvature of the outer diameter of the motor and fit the motor shell, further improving the clamping effect.

[0024] It should be noted that the detection component 2 in this embodiment is an existing module component. For details, please refer to the detection structure in the cycloidal hydraulic motor detection device disclosed in CN222577048 U. Therefore, this embodiment will not describe it in detail.

[0025] Example 2

[0026] Please see Figure 4Multiple first flip clamps 6 are provided, and the multiple first flip clamps 6 are arranged at equal intervals in the arc-shaped surface. The multi-level flip structure enhances the fit of the curved surface and eliminates local stress.

[0027] Example 3

[0028] Please see Figure 4 The second flip clamp 7 is also provided with multiple anti-slip teeth 8 on its side. The anti-slip teeth 8 are made of rubber. The rubber anti-slip teeth 8 increase the friction and prevent damage to the motor housing.

[0029] Example 4

[0030] Please see Figure 2 The adjustment unit includes a screw 9 and a nut 12 mounted on the screw 9. The screw 9 and the nut 12 achieve coarse adjustment positioning. A strip groove 11 is provided on the top surface of the detection table 1. The screw 9 is rotatably disposed in the strip groove 11. A knob 10 is installed at the end of the screw 9 that extends outside the detection table 1. The knob 10 provides a manual adjustment interface. The nut 12 is slidably disposed in the strip groove 11. A limiting plate 4 is fixedly mounted on the nut 12.

[0031] Example 5

[0032] Please see Figure 3 The drive unit includes a bidirectional lead screw 13 rotatably mounted inside the testing table 1, which provides precise positioning power. Guide rods 14 are symmetrically arranged on both sides of the bidirectional lead screw 13, which ensure the accuracy of the motion trajectory. The bidirectional lead screw 13 is driven by a motor installed inside the testing table 1, and two threaded portions of the bidirectional lead screw 13 are symmetrically fitted with threaded sleeves 15. The guide rods 14 are fixedly mounted, and sliding sleeves 16 are slidably mounted on the guide rods 14. The threaded sleeves 15 and sliding sleeves 16 work together to convert rotational motion into linear displacement. The movable part 5 is fixedly mounted on the threaded sleeves 15 and sliding sleeves 16. The top surface of the testing table 1 is also provided with a strip-shaped hole 17 for the threaded sleeves 15 and sliding sleeves 16 to slide, which provides a motion channel.

[0033] Working principle:

[0034] During operation, rotating knob 10 drives screw 9 to rotate, nut 12 moves movable limit plate 4 along strip groove 11 to initially adapt to motor length and initially fix motor on detection table 1. Then, control the motor to drive bidirectional lead screw 13 to rotate, and screw sleeve 15 drives movable part 5 to move towards each other along guide rod 14. First flip clamp 6 and second flip clamp 7 fit the motor housing with the arc surface, and multi-stage flip structure automatically compensates for surface tolerance. The motor shaft is precisely constrained at the detection center position, high-speed camera 3 captures displacement parameters, and detection component 2 performs performance testing. This design eliminates micro-displacement and centering deviation in the background technology through the coordinated clamping of "coarse adjustment limit - precise centering - multi-stage fitting", ensuring detection accuracy and efficiency.

[0035] The motor involved in the embodiments, its matching control system, electromagnetic switch and pipeline circuit can also be provided by the manufacturer. In addition, the control modules for controlling the motor, detection components and height camera involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this utility model does not involve improvements to the internal structure and method.

[0036] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-efficiency testing fixture for VCM motors, comprising a testing platform (1), a testing assembly (2) mounted on the testing platform (1), and a high-speed camera (3), characterized in that, The testing table (1) is also equipped with a clamping mechanism for clamping the motor. The clamping mechanism includes a coarse positioning component and a fine positioning component. The coarse positioning component includes a pair of limiting plates (4) arranged side by side on the detection table (1) and an adjustment unit for adjusting the distance between the two limiting plates (4). One of the limiting plates (4) is fixedly installed on the detection table (1), and the other limiting plate (4) is movably set through the adjustment unit. The precision positioning component includes movable parts (5) symmetrically and movably arranged on both sides of the two limiting plates (4) and a driving unit for driving the two movable parts (5) to move relative to each other. The two movable parts (5) have symmetrical arc surfaces on adjacent surfaces. A first flip clamp (6) is rotatably installed in the arc surface. A second flip clamp (7) is symmetrically and rotatably arranged on the first flip clamp (6). The first flip clamp (6) and the second flip clamp (7) are both arc structures.

2. The high-efficiency testing fixture for VCM motors according to claim 1, characterized in that, Multiple first flip clamps (6) are provided, and multiple first flip clamps (6) are arranged at equal intervals in the arc surface.

3. The high-efficiency testing fixture for VCM motors according to claim 1, characterized in that, The second flip clamp (7) is also provided with multiple anti-slip teeth (8) on its side, which are made of rubber.

4. The high-efficiency testing fixture for VCM motors according to claim 1, characterized in that, The adjustment unit includes a screw (9) and a nut (12) installed on the screw (9). A strip groove (11) is provided on the top surface of the test platform (1). The screw (9) is rotatably disposed in the strip groove (11), and a knob (10) is installed at the end of the screw (9) that extends outside the test platform (1). The nut (12) is slidably disposed in the strip groove (11), and a limiting plate (4) is fixedly installed on the nut (12).

5. The high-efficiency testing fixture for VCM motors according to claim 1, characterized in that, The drive unit includes a bidirectional lead screw (13) rotatably disposed in the test bench (1) and guide rods (14) symmetrically disposed on both sides of the bidirectional lead screw (13). The bidirectional lead screw (13) is driven by a motor disposed in the test bench (1), and two threaded portions of the bidirectional lead screw (13) are symmetrically fitted with threaded sleeves (15). The guide rods (14) are fixedly disposed, and sliding sleeves (16) are slidably disposed on the guide rods (14). The movable part (5) is fixedly installed on the threaded sleeves (15) and the sliding sleeves (16). The top surface of the test bench (1) is also provided with a strip hole (17) for the threaded sleeves (15) and the sliding sleeves (16) to slide.

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