Clamping device of electronic parking actuating mechanism for noise test
By designing a detachable clamping device to hold the end cap and body of the electronic parking actuator, the complexity and cost of disassembly in noise testing were solved, and a stable and convenient testing process was achieved.
Patent Information
- Application Number
- CN202422939405.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-29
AI Technical Summary
In the existing technology, noise testing of electronic parking actuators requires disassembling the housing and end cap, which leads to irreversibility, increased material costs, and complex disassembly procedures, affecting testing efficiency.
A clamping device was designed to stably clamp the end cap and the main body through a detachable connection of the pressure plate and the clamp, simulating the loading conditions, supporting multiple uses, and simplifying the testing process.
It achieves stability and repeatability in noise testing, reduces material costs, simplifies the disassembly and assembly process, and improves testing efficiency.
Smart Images
Figure CN223532285U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive electronic parking technology, and in particular to a clamping device for an electronic parking actuator used for noise testing. Background Technology
[0002] With the development of electronic parking brake technology, people have increasingly higher requirements for noise control during the braking and parking process. The main source of noise is the electronic parking actuator, which is the driving end of the parking brake. Therefore, it is necessary to conduct noise tests on the electronic parking actuator before it leaves the factory to analyze the causes of noise generation and improve the electronic parking actuator based on the analysis results.
[0003] In existing technologies, when testers measure and analyze the noise of electronic parking actuators, they often need to disassemble the end caps and housings of the electronic parking actuators and replace the internal parts of the housing to find the cause of the noise. However, the housing and end caps are often connected by welding, which means that once the housing and end caps are disassembled, they cannot be restored, and the disassembled end caps and housings cannot be reused, increasing material costs. At the same time, the disassembly process of the housing and end caps is complex and wastes a lot of time. Utility Model Content
[0004] In view of this, to solve the above problems, the purpose of this utility model is to provide a clamping device for an electronic parking actuator for noise testing. The electronic parking actuator includes a main body and an end cap disposed on the main body. An electronic parking brake is connected to the lower end of the electronic parking actuator. The clamping device includes:
[0005] A pressure plate, which is disposed above the end cap;
[0006] A clamp is detachably connected to the pressure plate, with one end of the clamp located above the pressure plate and the other end of the clamp abutting against the bottom surface of the main body;
[0007] A first connecting assembly is provided, wherein the clamp and the pressure plate are detachably connected via the first connecting assembly;
[0008] The electronic parking brake and the pressure plate are detachably connected via the second connecting assembly.
[0009] In another preferred embodiment, the first connecting assembly includes: a first bolt and a nut, one end of the pressure plate has a keyway, one end of the clamp has a first mounting hole, the first mounting hole is directly opposite the keyway, the nut is disposed on the upper top surface of the clamp, and the lower end of the first bolt passes through the nut and the first mounting hole in sequence and extends into the keyway.
[0010] In another preferred embodiment, the electronic parking brake has two mounting seats protruding outward on its outer side, and the lower end of the second connecting assembly is connected to the mounting seats.
[0011] In another preferred embodiment, the second connecting assembly includes two second bolts, with two second mounting holes provided at the other end of the pressure plate, the upper ends of the two second bolts extending into the two second mounting holes respectively, and the lower ends of the two second bolts being threadedly connected to the two mounting seats respectively.
[0012] In another preferred embodiment, the clamp is arranged in a U-shape.
[0013] In another preferred embodiment, the clamp includes a first part, a second part, and a third part connected in sequence, the second part being arranged in a vertical direction, the first part and the third part being arranged in a horizontal direction, the first part having a first mounting hole, and the third part being in contact with the bottom surface of the main body.
[0014] In another preferred embodiment, two connecting parts are provided on the outer side of the main body, and holes are provided on both connecting parts. The lower end of the second bolt passes through the second mounting hole and the hole in sequence and is tightened onto the mounting base.
[0015] In another preferred embodiment, the pressure plate is arranged in a T-shape.
[0016] Because this utility model adopts the above-mentioned technical solution, its positive effects compared with the prior art are as follows:
[0017] By applying this utility model, a clamping device for an electronic parking actuator for noise testing is provided. The end cap and housing are pressed together by the cooperation of the pressure plate and the clamp, so that the overall stability of the actuator after pressing is similar to that of the actuator after welding. It can stably reproduce the vehicle installation condition of the electronic parking actuator. After the test is completed, the end cap and housing can be reused, reducing material costs. At the same time, the clamping device has strong versatility and is easy to disassemble and assemble, making it easier to test and analyze the noise of the actuator. Attached Figure Description
[0018] Figure 1This is an overall structural diagram of the clamping device of an electronic parking actuator for noise testing according to this utility model during operation;
[0019] Figure 2 This is a top view of the clamping device of an electronic parking actuator for noise testing according to this utility model during operation.
[0020] In the attached image:
[0021] 100. End cap; 200. Main body; 210. Connecting part; 300. Pressure plate; 310. Keyway; 400. Fixture; 410. First part; 420. Second part; 430. Third part; 500. First connecting assembly; 510. First bolt; 520. Nut; 600. Second connecting assembly; 610. Second bolt; 700. Electronic parking brake; 710. Mounting base. Detailed Implementation
[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0023] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0024] It should be noted that the terms "horizontal" and "vertical" in this utility model are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane".
[0025] like Figures 1 to 2The diagram illustrates a preferred embodiment of a clamping device for an electronic parking actuator used for noise testing. The electronic parking actuator includes a main body 200 and an end cap 100 disposed on the main body 200. An electronic parking brake 700 is connected to the lower end of the electronic parking actuator. The clamping device includes: a pressure plate 300 disposed above the end cap 100; a clamp 400 detachably connected to the pressure plate 300, with one end of the clamp 400 located above the pressure plate 300 and the other end of the clamp 400 abutting against the bottom surface of the main body 200; a first connecting assembly 500 detachably connecting the clamp 400 and the pressure plate 300; and a second connecting assembly 600 detachably connecting the electronic parking brake 700 and the pressure plate 300. Furthermore, the pressure plate 300 and the clamp 400, as the main components of the clamping device, are respectively abutted against the end cover 100 and the main body 200. Through the cooperation of the first connecting component 500 and the second connecting component 600, the end cover 100 and the main body 200 are clamped by the pressure plate 300 and the clamp 400.
[0026] Furthermore, as a preferred embodiment, the outer side of the electronic parking brake 700 is provided with two mounting seats 710 protruding outward, and the lower end of the second connecting assembly 600 is connected to the mounting seats 710.
[0027] Furthermore, as a preferred embodiment, the second connecting assembly 600 includes: two second bolts 610, and two second mounting holes are provided at the other end of the pressure plate 300. The upper ends of the two second bolts 610 are respectively inserted into the two second mounting holes, and the lower ends of the two second bolts 610 are respectively threaded onto the two mounting seats 710.
[0028] Furthermore, as a preferred embodiment, two connecting parts 210 are provided on the outer side of the main body 200, and holes are provided on both connecting parts 210. The lower end of the second bolt 610 passes through the second mounting hole and the hole in sequence and is tightened onto the mounting base 710.
[0029] Furthermore, as a preferred embodiment, the pressure plate 300 is arranged in a T-shape.
[0030] Furthermore, as a preferred embodiment, the first connecting assembly 500 includes: a first bolt 510 and a nut 520, a keyway 310 is provided at one end of the pressure plate 300, a first mounting hole is provided at one end of the clamp 400, the first mounting hole is directly opposite the keyway 310, the nut 520 is provided on the upper top surface of the clamp 400, and the lower end of the first bolt 510 passes through the nut 520 and the first mounting hole in sequence and extends into the keyway 310.
[0031] Furthermore, as a preferred embodiment, the clamp 400 is arranged in a "U"-shaped structure.
[0032] Furthermore, as a preferred embodiment, the clamp 400 includes a first part 410, a second part 420 and a third part 430 connected in sequence. The second part 420 is arranged in a vertical direction, and the first part 410 and the third part 430 are arranged in a horizontal direction. A first mounting hole is formed on the first part 410, and the third part 430 is in contact with the bottom surface of the main body 200.
[0033] Furthermore, as a preferred embodiment, the first mounting hole is preferably a threaded hole.
[0034] Furthermore, as a preferred embodiment, the first bolt 510 can move upward or downward within the first mounting hole via a thread. Further, when the third part 430 abuts against the bottom surface of the main body 200, the first bolt 510 extends into the keyway 310 through the first mounting hole, causing the pressure plate 300 to abut against the end cap 100. The pressure plate 300 applies pressure to the end cap 100, and the end cap 100, under pressure, abuts tightly against the main body 200.
[0035] Furthermore, in a preferred embodiment, the threaded engagement between the nut 520 and the first bolt 510 allows the nut 520 to press firmly against the upper surface of the clamp 400 and provide sufficient friction, ensuring that the clamp 400 remains stable after clamping the end cap 100 and the main body 200. Furthermore, during the operation of the electronic parking actuator, the clamp 400 is affected by the vibration of the electronic parking actuator. However, due to the tightening effect of the nut 520, the first bolt 510 is prevented from loosening due to the vibration of the electronic parking actuator, thus ensuring that the electronic parking actuator remains clamped.
[0036] Furthermore, in a preferred embodiment, the nut 520 is fastened to the first portion 410 of the clamp 400 by the first bolt 510 to limit the clamp 400. Furthermore, when the nut 520 is fastened to the first portion 410, the clamp 400 and the pressure plate 300 cooperate to fix and hold the electronic parking actuator, preventing the clamp 400 from vibrating due to the electronic parking actuator. Figure 2 The displacement shown is from left to right or from right to left.
[0037] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model.
[0038] Based on the above, this utility model also has the following embodiments:
[0039] In a further embodiment of this utility model, the pressure plate 300 and the clamp 400 are preferably made of metal.
[0040] In a further embodiment of this utility model, the keyway 310 can provide a certain radial degree of freedom for the first bolt 510, so that the clamping device can be applied to electronic parking actuators of different sizes.
[0041] The specific installation steps of the clamping device for the electronic parking actuator used for noise testing according to this utility model are as follows:
[0042] First, the tester removes the unwelded end cap 100 and body 200, and places the body 200 on the electronic parking brake 700. Then, the tester places the end cap 100 on the body 200 and the pressure plate 300 on the end cap 100. Next, the tester passes the second bolt 610 through the second mounting hole and the connecting part 210 in sequence and tightens it onto the mounting base 710, completing the fixing of the electronic parking actuator and the electronic parking brake. Then, the tester places the third part 430 of the clamp 400 against the bottom surface of the body 200, and places the first mounting hole on the first part 410 and the pressure plate 300... The keyway 310 on the end cap 100 is positioned directly opposite the end cap 200. Next, the tester passes the first bolt 510 through the nut 520 and the first mounting hole, pressing it against the keyway 310 to ensure the end cap 100 is securely pressed against the main body 200. Then, the tester tightens the first bolt 510, minimizing any loosening. Afterward, the tester secures the nut 520 to the first part 410 of the clamp 400, fixing the clamp 400 to the electronic parking actuator, thus completing the fixing of the electronic parking actuator and the clamping device. Finally, the tester starts the electronic parking actuator and performs a noise test.
[0043] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A clamping device for an electronic parking actuator for noise testing, the electronic parking actuator comprising a main body and an end cap disposed on the main body, wherein an electronic parking brake is connected to the lower end of the electronic parking actuator, characterized in that, Comprising: A pressing plate, which is arranged above the end cover; A fixture, which is detachably connected to the pressing plate. One end of the fixture is located above the pressing plate, and the other end of the fixture is abutted against the bottom surface of the main body; A first connection component, through which the fixture and the pressing plate are detachably connected; A second connection component, through which the electronic parking brake and the pressing plate are detachably connected.
2. The clamping device for the electronic parking actuator for noise testing according to claim 1, characterized in that, The first connection component includes a first bolt and a nut. A key slot is formed at one end of the pressing plate, and a first mounting hole is formed at one end of the fixture. The first mounting hole is directly opposite to the key slot. The nut is arranged on the upper top surface of the fixture, and the lower end of the first bolt sequentially passes through the nut and the first mounting hole and extends into the key slot for setting.
3. The clamping device for the electronic parking actuator for noise testing according to claim 1, characterized in that, Two mounting seats are formed on the outer side of the electronic parking brake protruding outwards, and the lower end of the second connection component is connected to the mounting seats.
4. The clamping device for the electronic parking actuator for noise testing according to claim 3, characterized in that, The second connection component includes two second bolts. Two second mounting holes are formed at the other end of the pressing plate. The upper ends of the two second bolts respectively extend into the two second mounting holes for setting, and the lower ends of the two second bolts are respectively threadedly connected to the two mounting seats.
5. The clamping device for the electronic parking actuator for noise testing according to claim 1, characterized in that, The fixture is arranged in a "U" - shaped structure.
6. The clamping device for the electronic parking actuator for noise testing according to claim 2, characterized in that, The fixture includes a first part, a second part and a third part which are sequentially connected. The second part is arranged in the vertical direction, and the first part and the third part are arranged in the horizontal direction. The first mounting hole is formed on the first part, and the third part is in contact with the bottom surface of the main body.
7. The clamping device for the electronic parking actuator for noise testing according to claim 4, characterized in that, Two connecting parts are arranged on the outer side of the main body, and holes are formed on both of the two connecting parts. The lower ends of the second bolts sequentially pass through the second mounting holes and the holes and are tightened on the mounting seats.
8. The clamping device for the electronic parking actuator for noise testing according to claim 1, characterized in that, The pressing plate is arranged in a T - shaped structure.