Automatic test fixture for pressure sensor

Abstract

The utility model discloses an automatic test fixture for a pressure sensor, which comprises a mounting assembly, the mounting assembly comprises a support frame, a clamping assembly is arranged behind the support frame, the inner wall of a rear side plate is fixedly connected with the tail end of an electric telescopic rod, and the output end of the electric telescopic rod is fixedly connected to the center of the inner side surface of the side plate. The mounting plate is fixedly connected to the rear of the bottom of the support frame. The utility model relates to the technical field of automatic test fixtures for pressure sensors. According to the automatic test fixture for the pressure sensor, through cooperation of a moving groove, a connecting frame, a side plate, an electric telescopic rod and other parts on the mounting plate, accurate clamping and positioning of the pressure sensor can be achieved, and the electric telescopic rod can adjust the clamping force and position according to needs; the problem that the applicability of the device is poor due to pressure sensors of different sizes during automatic detection of the pressure sensors is avoided, and the beneficial effect of improving the universality and flexibility of the clamp is achieved.

Description

Technical Field

[0001] This utility model relates to the field of automated testing fixtures for pressure sensors, specifically an automated testing fixture for pressure sensors. Background Technology

[0002] Traditional pressure sensor testing typically involves manual clamping and testing, which has several drawbacks. First, consistency in manual clamping is difficult to guarantee; different operators may apply different clamping force and position, leading to poor repeatability and accuracy of test results.

[0003] In current technology, manual testing is inefficient and cannot meet the demand for rapid testing of pressure sensors in large-scale production. Moreover, manual testing is easily affected by human factors such as fatigue and negligence, which may lead to testing errors or omissions. In addition, for some special models or oddly shaped sensors, it may still be necessary to customize special fixtures, otherwise it is difficult to achieve good compatibility.

[0004] To address these issues, this invention provides an automated testing fixture for pressure sensors. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides an automated testing fixture for pressure sensors, which solves the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automated pressure sensor testing fixture, comprising an installation assembly, the installation assembly including a support frame, a clamping assembly disposed at the rear of the support frame, the clamping assembly including an installation plate, the installation plate having movable grooves on both sides of its upper surface, a connecting frame bottom fixedly connected to the rear side of the upper surface of the installation plate, a side plate fixedly connected to the rear side surface of the rear connecting frame, the outer side surface of the front connecting frame fixedly connected to the inner side surface of the side plate, an electric telescopic rod end fixedly connected to the inner wall of the rear side plate, the output end of the electric telescopic rod fixedly connected to the center of the inner side surface of the side plate, and the installation plate fixedly connected to the rear bottom of the support frame.

[0007] Furthermore, a roller axle is fixedly connected to the inner wall of the bottom end of the front connecting frame, the side surface of the roller is movably connected to the inner wall of the moving groove, and a top plate is fixedly connected to the outermost end of the moving groove.

[0008] By adopting the above technical solution, the pressure sensor can be accurately clamped and positioned through the cooperation of components such as the movable slot, connecting frame, side plate and electric telescopic rod on the mounting plate. The electric telescopic rod can adjust the clamping force and position as needed, avoiding poor device applicability caused by different sizes of pressure sensors during automatic pressure sensor detection, and achieving the beneficial effect of improving the versatility and flexibility of the fixture.

[0009] Furthermore, each connecting frame has a small plate fixedly connected to one side of its adjacent side, and a hydraulic rod is fixedly connected to the center of the lower surface of the small plate. The other end of the hydraulic rod is fixedly connected to a clamping plate.

[0010] By adopting the above technical solution, the hydraulic rod can precisely control the movement of the clamping plate. According to the characteristics of the pressure sensor and the test requirements, the clamping force can be adjusted to ensure that the sensor will not be damaged due to excessive clamping force during the test, nor will the test results be inaccurate due to insufficient clamping force.

[0011] Furthermore, there are two clamps, and memory foam is fixedly connected to each adjacent side of the clamps.

[0012] By adopting the above technical solution, the memory foam on the adjacent side of the clamp has good elasticity and adaptability. It can fit the surface of the pressure sensor, increase friction, and prevent the sensor from sliding during the test. At the same time, it can also prevent the clamp from damaging the sensor surface, thus achieving the beneficial effect of protecting the appearance and performance of the sensor.

[0013] Furthermore, both ends of the two clamps are fixedly connected to the two ends of springs.

[0014] Using the above technical solution, the springs at both ends of the two clamping plates play a role in buffering and compensation. During the clamping process, the springs can absorb some of the impact force, preventing the clamping force from being too large at any moment and damaging the sensor.

[0015] Furthermore, a conveyor belt is fixedly connected to the top of the support frame.

[0016] By adopting the above technical solution, the conveyor belt at the top of the support frame facilitates the loading and unloading of pressure sensors, realizing automated transmission. It can quickly and accurately transport the sensor to be tested to the clamping position of the fixture, and promptly send the sensor out after the test is completed, improving testing efficiency, reducing the time and workload of manual operation, and facilitating the realization of automated assembly line operation for pressure sensor testing.

[0017] Beneficial effects

[0018] This invention provides an automated testing fixture for pressure sensors. Compared with existing technologies, it has the following advantages:

[0019] 1. This automated pressure sensor testing fixture, through the cooperation of components such as the movable slot on the mounting plate, connecting frame, side plate, and electric telescopic rod, can achieve precise clamping and positioning of pressure sensors. The electric telescopic rod can adjust the clamping force and position as needed, avoiding poor device applicability caused by different sizes of pressure sensors during automatic pressure sensor detection, and achieving the beneficial effect of improving the versatility and flexibility of the fixture.

[0020] 2. This automated pressure sensor testing fixture utilizes the memory foam on the adjacent side of the clamp, which has excellent elasticity and adaptability. It can conform to the surface of the pressure sensor, increase friction, and prevent the sensor from sliding during testing. At the same time, it can also prevent the clamp from damaging the sensor surface, thus achieving the beneficial effect of protecting the appearance and performance of the sensor. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a perspective view of the external structure of this utility model;

[0023] Figure 2 This is the utility model Figure 1 Figure A in the diagram;

[0024] Figure 3 This is a rear view of the structure of this utility model;

[0025] Figure 4 This is a side view of the structure of this utility model.

[0026] In the diagram: 1. Mounting assembly; 101. Support frame; 102. Conveyor belt; 2. Clamping assembly; 201. Mounting plate; 202. Moving groove; 203. Top plate; 204. Roller; 205. Connecting frame; 206. Side plate; 207. Small plate; 208. Hydraulic rod; 209. Clamping plate; 210. Memory foam; 211. Electric telescopic rod; 212. Spring. Detailed Implementation

[0027] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0028] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] Reference Figures 1 to 4 This application provides an automated testing fixture for a pressure sensor, including a mounting assembly 1. The mounting assembly 1 includes a support frame 101, and a clamping assembly 2 is provided behind the support frame 101. The clamping assembly 2 includes a mounting plate 201. Movable grooves 202 are provided on both sides of the upper surface of the mounting plate 201. The bottom end of a connecting frame 205 is fixedly connected to the rear side of the upper surface of the mounting plate 201. A side plate 206 is fixedly connected to the rear side surface of the rear connecting frame 205. The outer side surface of the front connecting frame 205 is fixedly connected to the inner side surface of the side plate 206. The end of an electric telescopic rod 211 is fixedly connected to the inner wall of the rear side plate 206. The output end of the electric telescopic rod 211 is fixedly connected to the center of the inner side surface of the side plate 206. The mounting plate 201 is fixedly connected to the bottom rear of the support frame 101. A roller 204 axle is fixedly connected to the inner wall of the bottom end of the front connecting frame 205. The side surface of the roller 204 is movably connected to the inner wall of the moving groove 202. A top plate 203 is fixedly connected to the outermost end of the moving groove 202.

[0030] In this embodiment, when the output end of the electric telescopic rod 211 extends or retracts, it pushes or pulls the side plate 206. Since the outer surface of the front connecting frame 205 is fixed to the inner surface of the side plate 206, and the rear side plate 206 is connected to the rear connecting frame 205, the extension and retraction of the electric telescopic rod 211 will cause the connecting frame 205 to move on the upper surface of the mounting plate 201. When the electric telescopic rod 211 pushes the connecting frame 205 to move, the roller 204 rolls in the moving groove 202, converting sliding friction into rolling friction, greatly reducing the friction force, so that the connecting frame 205 can move smoothly in the moving groove 202. The top plate 203 at the outermost end of the moving groove 202 acts as a limit to prevent the roller 204 from moving excessively.

[0031] Reference Figures 1 to 4In one aspect of this embodiment, each connecting frame 205 is fixedly connected to a small plate 207 on an adjacent side, and a hydraulic rod 208 is fixedly connected to the center of the lower surface of the small plate 207. The other end of the hydraulic rod 208 is fixedly connected to a clamping plate 209.

[0032] In this embodiment, when it is necessary to clamp the pressure sensor, the hydraulic rod 208 extends and pushes the clamping plate 209 downward. Then, the electric telescopic rod 211 shortens to move the outer clamping plate 209 to the rear until the clamping plate 209 contacts the sensor and the memory foam 210 is in close contact with the sensor.

[0033] Reference Figures 1 to 4 In one aspect of this embodiment, there are two clamping plates 209, and memory foam 210 is fixedly connected to each adjacent side of the clamping plates 209.

[0034] In this embodiment, when the clamping plate 209 clamps the pressure sensor, the memory foam 210 deforms according to the surface shape of the sensor, closely adhering to the sensor surface. This avoids direct hard contact between the clamping plate 209 and the sensor, preventing scratches on the sensor surface, and also provides a uniform pressure distribution, protecting the sensor from damage.

[0035] Reference Figures 1 to 4 In one aspect of this embodiment, both ends of the two clamping plates 209 are fixedly connected to the two ends of the spring 212.

[0036] In this embodiment, when the clamping plate 209 rapidly approaches the sensor, the spring 212 is compressed to absorb some of the impact force, preventing damage to the sensor due to excessive impact. Simultaneously, the elastic deformation of the spring 212 can also compensate for minor errors in the movement of the hydraulic rod 208 to a certain extent, resulting in a more uniform clamping force.

[0037] Reference Figures 1 to 4 In one aspect of this embodiment, a conveyor belt 102 is fixedly connected to the top of the support frame 101.

[0038] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0039] Working principle: During automated testing, the conveyor belt 102 runs at a certain speed, transporting the pressure sensor to be tested to the clamping position of the fixture. Once the sensor reaches the designated position, the fixture clamps it. After the test is completed, the conveyor belt 102 then transports the sensor out, achieving continuous and efficient material transport and improving testing efficiency.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure sensor automated test fixture comprising a mounting assembly (1) characterised in that: The mounting assembly (1) includes a support frame (101), the rear of the support frame (101) is provided with a clamping assembly (2), the clamping assembly (2) includes a mounting plate (201), the upper surface of the mounting plate (201) is provided with a moving groove (202) on both sides, the rear side of the upper surface of the mounting plate (201) is fixedly connected with the bottom end of the connecting frame (205), the rear side surface of the rear connecting frame (205) is fixedly connected with the side plate (206), the outer side surface of the front connecting frame (205) is fixedly connected with the inner side surface of the side plate (206), the inner wall of the rear side plate (206) is fixedly connected with the tail end of the electric telescopic rod (211), the output end of the electric telescopic rod (211) is fixedly connected with the inner side surface of the side plate (206), and the mounting plate (201) is fixedly connected with the rear of the bottom of the support frame (101).

2. The automated test fixture for pressure sensors of claim 1, wherein: The inner wall of the bottom end of the front connecting frame (205) is fixedly connected with the wheel shaft of the roller (204), the side surface of the roller (204) is movably connected with the inner wall of the moving groove (202), and the outermost end of the moving groove (202) is fixedly connected with the top plate (203).

3. The automated test fixture for pressure sensors of claim 1, wherein: The adjacent side of each connecting frame (205) is fixedly connected with a small plate (207), one end of the hydraulic rod (208) is fixedly connected with the lower surface center of the small plate (207), and the other end of the hydraulic rod (208) is fixedly connected with one end of the clamping plate (209).

4. The automated test fixture for pressure sensors of claim 3, wherein: The number of the clamping plate (209) is two, and the adjacent side of the clamping plate (209) is fixedly connected with the memory sponge (210).

5. The automated test fixture for pressure sensors of claim 1, wherein: Both ends of the two clamping plates (209) are fixedly connected with the two ends of the spring (212).

6. The automated test fixture for pressure sensors of claim 1, wherein: The top of the support frame (101) is fixedly connected with the conveying belt (102).

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