Linear motor performance test tool

Abstract

The utility model discloses a linear motor performance test tool, and belongs to the technical field of linear motor tests. The device mainly comprises a detection frame, the detection frame comprises a detection table and a fixed seat, a fixed clamping block is installed on the fixed seat, and a movable clamping block is installed on the fixed seat in a sliding mode; second mounting plates are mounted on the two sides of the movable clamping block, and first mounting plates are mounted on the two sides of the fixed clamping block. A spring is connected and mounted between the first mounting plate and the second mounting plate, a guide column is mounted on the first mounting plate, and the guide column is sleeved with the spring; a protruding seat is installed on the fixing seat, a supporting shaft is installed on the protruding seat, and a cam is installed on the supporting shaft through a bearing. According to the linear motor performance test tool, through arrangement of the sealing plate, the grip, the fixed seat, the fixed clamping block, the movable clamping block, the first mounting plate, the second mounting plate, the guide column, the spring, the protruding seat, the supporting shaft, the cam and the rotating rod, it is ensured that the linear motor is kept at a stable position during performance test.

Description

Technical Field

[0001] This application relates to the field of linear motor testing technology, specifically to a linear motor performance testing fixture. Background Technology

[0002] A linear motor is a transmission device that directly converts electrical energy into linear motion mechanical energy without any intermediate conversion mechanism. It can be viewed as a rotary motor cut radially and then unfolded into a straight line. Linear motors are also based on the principle of electromagnetic induction. Taking the most common three-phase AC linear induction motor as an example, it mainly consists of two parts: a stator and a mover.

[0003] The performance tests of linear motors include static characteristic tests, dynamic characteristic tests, load characteristic tests, positioning accuracy tests, and impact tests of linear motors.

[0004] For example, patent CN220323000U discloses an impact testing machine, including a fixed frame, a movable frame, an impact head, a bearing plate, a screw, a cylinder, a fixed plate, a fixed groove, a fixed block, a connecting plate, a slide rod, and bearings. This design allows the glass to be shielded during impact testing, preventing it from shattering and ensuring worker safety.

[0005] When the aforementioned patented impact testing machine is used for linear motor testing, the linear motor is placed directly on a support plate. When the impact head strikes the linear motor, the motor may shift position due to the impact force. For example, the linear motor may slide on the support plate, preventing it from accurately striking the preset position. This leads to deviations in the test data and fails to accurately reflect the impact resistance performance of the glass under normal placement conditions. Therefore, a linear motor performance testing fixture needs to be designed to solve the above problems.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0007] Based on the aforementioned problems in the existing technology, the problem to be solved in this application is to provide a linear motor performance testing fixture, which addresses the issue that when the aforementioned patented impact testing machine is applied to linear motor testing, the linear motor is directly placed on the support plate. When the impact head impacts the linear motor, the linear motor may shift its position due to the impact force. For example, the linear motor may slide on the support plate, preventing it from accurately striking the preset position. This leads to deviations in the test data and fails to accurately reflect the impact resistance performance of the glass under normal placement conditions.

[0008] The technical solution adopted by this application to solve its technical problem is: a linear motor performance testing fixture. It mainly includes: a testing frame, which includes a testing platform; a hydraulic cylinder is installed at the top of the inner wall of the testing frame, and an impact head is installed at the output end of the hydraulic cylinder; four sets of guide rods are installed on the testing platform, and fixed frames are slidably installed on the four sets of guide rods; the fixed frames have placement slots; a fixing assembly, which is installed in the placement slots, and includes: a fixing seat, which is installed in the placement slots; the fixing seat has a T-shaped structure; a fixing clamp is installed on the fixing seat; a movable clamp is slidably installed on the fixing seat; second mounting plates are installed on both sides of the movable clamp; first mounting plates are installed on both sides of the fixing clamp; a spring is connected between the first mounting plate and the second mounting plate; a guide post is installed on the first mounting plate, and the spring is sleeved on the guide post; a protruding seat is installed on the fixing seat; a support shaft is installed on the protruding seat; and a cam is mounted on the support shaft.

[0009] Furthermore, the bottom end of the testing frame is provided with a groove, and the bottom end of the inner wall of the testing platform is equipped with a moving unit. The moving unit includes a fixed frame installed on the testing platform. One end of the fixed frame is provided with a threaded groove, and a screw is threadedly connected to the threaded groove.

[0010] Furthermore, a rotating rod is installed at one end of the screw, and an opening slot is provided on the detection frame.

[0011] Furthermore, a sealing plate is hinged to the testing frame, and a handle is mounted on the sealing plate.

[0012] Furthermore, a rotating rod is mounted on the cam.

[0013] The beneficial effects of this application are as follows: The linear motor performance testing fixture provided by this application, through the arrangement of a sealing plate, handle, fixed seat, fixed clamping block, movable clamping block, first mounting plate, second mounting plate, guide column, spring, protruding seat, support shaft, cam and rotating rod, achieves a stable, flexible and adjustable clamping function for the linear motor, ensuring that the linear motor maintains a stable position during performance testing, and providing good conditions for subsequent testing work.

[0014] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall performance testing fixture for a linear motor according to this application;

[0017] Figure 2 for Figure 1 Exploded view;

[0018] Figure 3 This is a schematic diagram of the bottom structure of the figure;

[0019] Figure 4 for Figure 2 Enlarged view of point A;

[0020] The following are the labeling elements in the figure:

[0021] 1. Testing frame; 11. Opening slot; 12. Hydraulic cylinder; 13. Impact head; 14. Guide rod; 15. Moving plate; 16. Fixed frame; 17. Screw; 18. Rotating rod; 19. Placement slot; 2. Fixed assembly; 21. Sealing plate; 22. Handle; 24. Fixed seat; 25. Fixed clamping block; 26. Movable clamping block; 27. First mounting plate; 28. Second mounting plate; 29. ​​Guide column; 210. Spring; 211. Protruding seat; 212. Support shaft; 213. Cam; 214. Rotating rod. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0024] like Figures 1-4 As shown, this application provides a linear motor performance testing fixture, including a test frame 1. The test frame 1 includes a test platform (not shown in the figure), four sets of guide rods 14 are fixedly installed on the test platform, and a fixed frame 16 is slidably installed on the four sets of guide rods 14. A placement slot 19 is provided on the fixed frame 16, and the placement slot 19 is used to place the linear motor to be tested.

[0025] A hydraulic cylinder 12 is fixedly installed at the top of the inner wall of the testing frame 1. An impact head 13 is fixedly installed at the output end of the hydraulic cylinder 12. The hydraulic cylinder 12 is designed for starting, and its output end will move linearly. The impact head 13, which is fixedly connected to it, will also move linearly along with the output end of the hydraulic cylinder 12. Since the impact head 13 is in a movable state, it can move towards the linear motor placed in the placement slot 19, thereby applying an impact force to the linear motor. By controlling parameters such as the extension stroke, extension speed, and applied pressure of the output end of the hydraulic cylinder 12, impact conditions of different intensities and working conditions can be simulated, thereby detecting the performance of the linear motor when subjected to impact.

[0026] A groove is provided at the bottom of the testing frame 1 (not shown in the figure). A moving unit is fixedly installed at the bottom of the inner wall of the testing table. The moving unit includes a fixed frame 16 fixedly installed on the testing table. A threaded groove is provided at one end of the fixed frame 16. A screw 17 is threadedly connected to the threaded groove. One end of the screw 17 is movably connected through the bearing connection between the testing table and the moving plate 15.

[0027] When it is necessary to test the linear motor at different positions or simulate impacts at different positions, rotating the screw 17 causes the moving plate 15 to produce a corresponding linear displacement. This is because the screw 17 is threadedly connected to the fixed frame 16 at one end, and one end of the screw 17 is movably connected to the bearing of the test platform and the moving plate 15. This changes the position of the linear motor and the impact head 13 at the output end of the hydraulic cylinder 12, which are placed in the placement slot 19. This facilitates performance testing of the linear motor from different linear distances, broadens the testing range and flexibility, and better meets the needs of various positional scenarios where the linear motor may be in practical applications.

[0028] A rotating rod 18 is fixedly installed at one end of the screw 17. The rotating rod 18 facilitates the rotation of the screw 17. At the same time, an opening slot 11 is provided on the detection frame 1. The opening slot 11 facilitates the user to hold the rotating rod 18 and rotate it.

[0029] A sealing plate 21 is hinged to the testing frame 1, and a handle 22 is fixedly installed on the sealing plate 21. When an impact test is performed on the linear motor placed in the placement slot 19 of the fixed frame 16, the sealing plate 21 blocks the test area of ​​the fixed frame 16 by default. Since the linear motor may break when impacted by the impact head 13, and the fragments generated may fly in all directions, the sealing plate 21 acts as a barrier to prevent these fragments from flying into the working area outside the tooling, thus avoiding injury or damage to surrounding personnel and other equipment, and playing an effective safety protection role, ensuring the safety of personnel and equipment at the testing site.

[0030] A fixing component 2 is installed on the placement slot 19. The fixing component 2 includes a fixing seat 24 fixedly installed in the placement slot 19. The fixing seat 24 is suitable for placing a linear motor and has a T-shaped structure. A fixing clamp 25 is fixedly installed at one end of the fixing seat 24, and a movable clamp 26 is slidably installed on the fixing seat 24. A second mounting plate 28 is fixedly installed on both sides of the movable clamp 26, and a first mounting plate 27 is fixedly installed on both sides of the fixing clamp 25.

[0031] A spring 210 is connected and installed between the first mounting plate 27 and the second mounting plate 28. A guide post 29 is fixedly installed on the first mounting plate 27. The spring 210 is sleeved on the guide post 29. When the linear motor is placed on the fixed seat 24, the spring 210 connected between the second mounting plate 28 on both sides of the movable clamping block 26 and the first mounting plate 27 on both sides of the fixed clamping block 25 begins to function. The spring 210 itself has elastic restoring force and will tend to return to its initial length or shape in a natural state. Since the spring 210 is sleeved on the guide post 29 fixed on the first mounting plate 27, this can ensure the stability of the extension and retraction direction of the spring 210 and enable the spring 210 to push the movable clamping block 26 along the axial direction of the guide post 29.

[0032] A protruding seat 211 is fixedly installed at one end of the fixed seat 24. A support shaft 212 is fixedly installed on the protruding seat 211. A cam 213 is mounted on the support shaft 212. A rotating rod 214 is fixedly installed on the cam 213. The cam 213 is adapted to rotate so that the cam 213 presses the movable clamping block 26 toward the fixed clamping block 25.

[0033] When a more secure clamping of the linear motor is required, the lever 214 can be operated to rotate the cam 213. The cam 213 is mounted on the support shaft 212 via bearings, and the support shaft 212 is fixed to the protrusion 211. When the cam 213 rotates, its profile changes. Due to the special shape of the cam 213, it exerts a squeezing effect on the movable clamping block 26 during its rotation.

[0034] As the cam 213 rotates, it gradually presses the movable clamping block 26 further against the fixed clamping block 25, increasing the clamping force of the movable clamping block 26 and the fixed clamping block 25 on the linear motor. By adjusting the rotation angle of the cam 213, the displacement of the movable clamping block 26 can be precisely controlled, thereby controlling the degree of clamping on the linear motor to meet the clamping force requirements of different test scenarios or linear motors of different sizes.

[0035] This method of adjusting the clamping force via cam 213 not only provides a more secure fixation for the linear motor, preventing displacement due to impacts or other external forces during subsequent testing, but also allows for flexible adjustment of the clamping force, facilitating operation and providing greater flexibility and reliability for the use of linear motor performance testing fixtures.

[0036] Through the combination of the spring 210 and cam 213 mechanism, the fixing component 2 can achieve a stable, flexible and adjustable clamping function for the linear motor, ensuring that the linear motor maintains a stable position during performance testing and providing good conditions for subsequent testing.

[0037] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A linear motor performance testing fixture, characterized in that: include: The testing frame (1) includes a testing platform, and a hydraulic cylinder (12) is installed at the top of the inner wall of the testing frame (1). An impact head (13) is installed at the output end of the hydraulic cylinder (12). Four sets of guide rods (14) are installed on the testing platform. Fixing frames (16) are slidably installed on the four sets of guide rods (14). Placement slots (19) are opened on the fixing frames (16). A fixing component (2) is installed in the placement slot (19), the fixing component (2) comprising: A fixed seat (24) is installed in the placement groove (19). The fixed seat (24) has a T-shaped structure. A fixed clamping block (25) is installed on the fixed seat (24). A movable clamping block (26) is slidably installed on the fixed seat (24). The movable clamping block (26) is equipped with a second mounting plate (28) on both sides, and the fixed clamping block (25) is equipped with a first mounting plate (27) on both sides. A spring (210) is connected between the first mounting plate (27) and the second mounting plate (28). A guide post (29) is mounted on the first mounting plate (27), and the spring (210) is sleeved on the guide post (29). A protruding seat (211) is mounted on the fixed seat (24), a support shaft (212) is mounted on the protruding seat (211), and a cam (213) is mounted on the support shaft (212) bearing.

2. The linear motor performance testing fixture according to claim 1, characterized in that: The bottom end of the testing frame (1) is provided with a groove, and the bottom end of the inner wall of the testing platform is provided with a moving unit. The moving unit includes a fixed frame (16) installed on the testing platform. One end of the fixed frame (16) is provided with a threaded groove, and a screw (17) is threadedly connected to the threaded groove.

3. The linear motor performance testing fixture according to claim 2, characterized in that: A rotating rod (18) is installed at one end of the screw (17), and an opening slot (11) is provided on the detection frame (1).

4. The linear motor performance testing fixture according to claim 3, characterized in that: A sealing plate (21) is hinged to the testing frame (1), and a handle (22) is installed on the sealing plate (21).

5. The linear motor performance testing fixture according to claim 4, characterized in that: A rotating rod (214) is mounted on the cam (213).

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