Test bench for automatically testing actuation of electromagnetic clutch driving disc
By designing an automatic testing bench for the engagement of an electromagnetic clutch drive disc, and employing engagement fixtures, a DC regulated power supply, and height measuring fixtures, the problem of large errors in manual measurement was solved, achieving efficient and accurate test results and reducing production costs.
Patent Information
- Application Number
- CN202423193119.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-24
AI Technical Summary
In existing technologies, the engagement detection of electromagnetic clutch drive discs suffers from large human measurement errors, leading to inaccurate test results and affecting product quality and pass rate.
An automatic testing bench for the engagement of an electromagnetic clutch drive disc was designed. It employs an engagement fixture, a DC regulated power supply, a pneumatic screwdriver, and a height measuring fixture, combined with a displacement sensor and a display module, to automatically measure and calculate the height difference between the drive disc and the test pulley.
It achieves high-precision and automated detection, reduces operational difficulty and production costs, and improves the accuracy and efficiency of detection.
Smart Images

Figure CN223538543U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electromagnetic clutch testing, specifically an automatic testing bench for the engagement of an electromagnetic clutch drive disc. Background Technology
[0002] During the manufacturing process of the electromagnetic clutch drive disc, a engagement test is required to confirm its quality. This engagement test involves measuring the difference between the working height of the drive disc under test and the working height of the test pulley.
[0003] The current testing method involves manual measurement using a dial indicator fixture. Due to the high precision required for testing, dial indicator measurements are prone to errors. Furthermore, the large demand and high production capacity of the drive disc result in a heavy workload for testing personnel. This leads to errors when measuring the working height and calculating the difference, resulting in inaccurate subsequent engagement test results and seriously affecting product quality and product qualification rate.
[0004] Therefore, there is an urgent need for a device that can accurately measure and calculate the difference between the working height of the drive disc and the working height of the test pulley to ensure the accuracy of the test and the reliability of the subsequent engagement test results. Utility Model Content
[0005] The present invention aims to overcome the shortcomings of the prior art by providing an automatic testing bench for the engagement of an electromagnetic clutch drive disc.
[0006] Please provide the following technical solutions:
[0007] An automatic testing bench for the engagement of an electromagnetic clutch drive disc is characterized in that: it includes a frame, on the table surface of the frame are a set of engagement fixtures and a set of corresponding DC regulated power supplies and a set of pneumatic screwdrivers distributed corresponding to the engagement fixtures, and an auxiliary table surface is connected to each side of the table surface. Each auxiliary table surface is provided with a height measuring fixture, and the frame is also provided with a display module that cooperates with the height measuring fixture and the engagement fixture to form an electrical signal transmission.
[0008] Based on the above technical solutions, the following further technical solutions are also possible:
[0009] The aforementioned suction fixture includes: a bracket, a pulley on the bracket, and an electromagnetic coil corresponding to a DC regulated power supply inside the pulley.
[0010] The height measuring fixture includes: a main body, a drive disk placement slot at the upper end of the main body, a longitudinal groove in the drive disk placement slot, a displacement sensor passing through the longitudinal groove, a probe top block corresponding to the drive disk at the upper end of the probe rod of the displacement sensor, and a spring sleeved on the probe rod between the probe top block and the bottom of the longitudinal groove.
[0011] Advantages of the utility model:
[0012] This utility model has a simple structure and is easy to use. It replaces manual operation, making it faster and more efficient. The measurement results are more accurate and efficient, greatly reducing the difficulty of operation and eliminating the need for a large number of professional measurement personnel, thus reducing production costs. Attached Figure Description
[0013] Figure 1 This is an overall structural diagram of the present invention;
[0014] Figure 2 yes Figure 1 Schematic diagram of the middle suction tool;
[0015] Figure 3 yes Figure 2 AA section view
[0016] Figure 4 yes Figure 1 A schematic diagram of the structure of the medium-height measuring fixture. Detailed Implementation
[0017] like Figure 1-4 As shown, an automatic test bench for the engagement of an electromagnetic clutch drive disc includes a frame 1, on which a pair of engagement fixtures 2 and a pair of corresponding DC regulated power supplies 3 are installed on the table surface 1a of the frame 1.
[0018] The suction fixture 2 includes an L-shaped bracket 2a with one end fixedly connected to the table surface. A pulley 2b is fixed on the bracket 2a, and an electromagnetic coil 2c is electrically connected to the DC regulated power supply 3 via a wire (not shown in the figure) inside the pulley 2b.
[0019] Each suction fixture 2 has a pneumatic screwdriver 4 connected to the frame 1 above it via a retractable cable.
[0020] An auxiliary platform 1b is connected to each side of the platform 1a, and a height measuring fixture 5 is installed on each auxiliary platform 1b.
[0021] The height measuring fixture 5 includes a main body 5a, a drive disk placement groove 5b at the upper end of the main body 5a, a longitudinal groove 5c on the drive disk placement groove 5b, a displacement sensor 5d passing through the longitudinal groove 5c, a probe top block 5e corresponding to the drive disk at the upper end of the probe rod of the displacement sensor 5d, and a spring 5f passing through the probe rod between the probe top block 5e and the bottom of the longitudinal groove 5c.
[0022] A display module 6 is also provided on the frame 1. The display module 6 forms an electrical signal transmission cooperation with the displacement sensor 5d and the suction fixture 2 through wires not shown in the figure.
[0023] Work process:
[0024] First, the worker selects the product model to be measured and sets the corresponding parameters on the display module 6. Then, the product to be measured is placed on the drive disk 7 placement slot 5b of the height measuring fixture 5. The drive disk presses down on the probe head block 5e. The downward pressure of the probe head block 5e causes the high-precision displacement sensor to move. The working height of the measured product is calculated using this displacement. After the test, the measured product is removed, and the spring pushes the probe head block back to its original position. The displacement is transmitted to the display module 6 via wires.
[0025] The display module 6 shows the measurement result and the calculated difference. The worker selects a test shim based on the difference and installs the shim and drive plate onto the suction fixture 2 using a pneumatic screwdriver 4. Then, the DC regulated power supply 3 is turned on to supply power to the electromagnetic coil, causing the drive plate to engage with the pulley.
[0026] The suction test begins. After the test is completed, the worker uses a pneumatic screwdriver to remove the product and sorts it into storage boxes according to the test results for circulation.
Claims
1. An automatic testing bench for the engagement of an electromagnetic clutch drive disc, characterized in that: It includes a frame (1), on which a set of suction fixtures (2) and a set of corresponding DC regulated power supplies (3) and a set of pneumatic screwdrivers (4) distributed in relation to the suction fixtures (2) are provided. An auxiliary table is connected to each side of the table, and a height measuring fixture (5) is provided on each auxiliary table. A display module (6) is also provided on the frame (1) to form an electrical signal transmission cooperation with the height measuring fixture (5) and the suction fixtures (2).
2. The automatic testing bench for electromagnetic clutch drive disc engagement according to claim 1, characterized in that: The suction fixture (2) includes: a bracket (2a), a pulley (2b) on the bracket (2a), and an electromagnetic coil (2c) corresponding to and cooperating with the DC regulated power supply (3) inside the pulley (2b).
3. The automatic testing bench for electromagnetic clutch drive disc engagement according to claim 1, characterized in that: The height measuring fixture (5) includes: a main body (5a), a drive disk placement groove (5b) on the upper end of the main body (5a), a longitudinal groove (5c) on the drive disk placement groove (5b), a displacement sensor (5d) passing through the longitudinal groove (5c), a probe top block (5e) corresponding to the drive disk on the upper end of the probe rod of the displacement sensor (5d), and a spring (5f) sleeved on the probe rod between the probe top block (5e) and the bottom of the longitudinal groove (5c).