Pressure sensing test tool

Abstract

The utility model relates to a pressure sensing test tool which comprises a test machine table, a carrier, a first detection assembly, a second detection assembly and a driving assembly. The testing machine comprises a base and a rack which are connected, the carrier is fixed on the top surface of the base, and the surface of the carrier is provided with an accommodating cavity for accommodating a to-be-tested product; the first detection assembly comprises a first probe, and the sensing end of the first probe is exposed out of the cavity wall of the containing cavity. The second detection assembly comprises a second probe and a pressure sensor, the second probe extends in the first direction, and one end of the second probe is fixed to the pressure sensor; the pressure sensor, the second probe, the to-be-tested product and the first probe are sequentially arranged along a first direction; the driving assembly is used for driving the second detection assembly to move and apply force in the first direction. According to the utility model, stable pressure is applied to the pressure sensor and the detection part of the to-be-detected product, so that the stress condition and the feedback condition of the to-be-detected product can be accurately transmitted, and the accuracy is better.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure detection, in particular to a pressure sensing test tool. Background Art

[0002] Some products require pressure feedback testing before use to detect the feedback of certain areas of the product when under pressure, so as to obtain the results of whether the tested product meets the pressure feasibility and reliability requirements. Currently, some existing pressure testing tooling can only detect the pressure feedback of the product's output, but cannot control whether the corresponding pressure applied to the product to be tested is accurate. Therefore, there are problems such as insufficient detection reliability, insufficient data support, and low detection accuracy. The existing detection tooling has a cumbersome structure and low practicality. Utility Model Content

[0003] To this end, the technical problem to be solved by the utility model is to overcome the technical difficulties of the pressure feedback testing device in the prior art, which is low in precision, cannot simultaneously detect and control the feedback pressure of the product and the pressure applied to the product, and has insufficient reliability. A pressure sensing test tool is provided, which improves the detection accuracy and reliability by setting a pressure sensor to display the test value in real time.

[0004] In order to solve the above technical problems, the utility model provides a pressure sensing test tool, which includes:

[0005] A test bench, comprising a base and a frame connected to each other, wherein the frame is located on the top surface of the base;

[0006] A carrier, which is fixed to the top surface of the base and has a receiving cavity on its surface for receiving the product to be tested;

[0007] A first detection component includes a first probe; the first probe is disposed inside the carrier, and a sensing end of the first probe is exposed to a cavity wall of the accommodating cavity;

[0008] A second detection component is fixed to the frame; the second detection component includes a second probe and a pressure sensor, the second probe extends along the first direction, one end of the second probe is fixed to the pressure sensor, and the free end of the second probe is arranged toward the accommodating cavity; the pressure sensor, the second probe, the product to be tested and the first probe are arranged in sequence along the first direction;

[0009] A driving assembly is used to drive the second detection assembly to move along the first direction and apply force to the product to be detected.

[0010] In one embodiment of the utility model, a buffer assembly is also included, which includes a pair of first mounting plates and an elastic member; the pair of first mounting plates are respectively located at two ends of the second detection assembly, the pair of first mounting plates are connected by the elastic member, and the deformation direction of the elastic member is set to the first direction.

[0011] In one embodiment of the present invention, a avoidance space is provided on the first mounting plate close to a side of the second probe, and the avoidance space is used for the second probe to pass through along the first direction.

[0012] In an embodiment of the present invention, the elastic member is configured as a spring, and the spring has at least four groups.

[0013] In one embodiment of the utility model, the driving assembly includes a screw and a driving motor, and the power output end of the driving motor is connected to the screw; the second detection assembly is fixed to the first mounting plate, and the first mounting plate is fixed to the screw through the second mounting plate.

[0014] In one embodiment of the utility model, the driving assembly further includes a slide rail and a slider, the slide rail is fixed to the frame and extends along the first direction, and the slider is fixed to the second mounting plate and slidably connected to the slide rail.

[0015] In one embodiment of the present invention, a limiter is further included. The limiter is arranged on the travel path of the second detection component, and the limiter is used to limit and stop the movement of the second detection component.

[0016] In one embodiment of the utility model, an output component is further included. The output component is located inside the base. The output component includes a PLC. The output component is also connected to the output end of the first detection component and the output end of the second detection component.

[0017] In one embodiment of the utility model, a switch control component, a counter and a display screen are arranged on the surface of the base; the counter and the display screen are connected to the output component.

[0018] In one embodiment of the present invention, the pressure sensor is configured as an S-type tension pressure sensor.

[0019] The above technical solution of the utility model has the following advantages compared with the prior art:

[0020] The utility model discloses a pressure sensing test tool, which applies a stable pressure to the pressure sensor and the detection part of the product to be tested at the same time, and accurately feeds back the stress condition of the product through the first probe at the bottom of the product to be tested, so that the stress condition and feedback condition of the product to be tested can be accurately transmitted. The response capability, expansion performance, reliability, speed and stability during the test are improved compared with the existing tooling, and the test performance is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein:

[0022] Figure 1 It is an isometric schematic diagram of a pressure sensing test tooling in a preferred embodiment of the utility model;

[0023] Figure 2 yes Figure 1 An enlarged schematic diagram of the middle buffer component and the second detection component;

[0024] Figure 3 It is another isometric schematic diagram of the pressure sensing test tooling in the preferred embodiment of the utility model;

[0025] Figure 4 It is a structural schematic diagram of a carrier in a preferred embodiment of the utility model;

[0026] Figure 5 yes Figure 4 An enlarged schematic diagram of the middle accommodating cavity.

[0027] Description of the Figures in the Specification:

[0028] 1. Test machine; 11. Base; 111. Switch control component; 112. Counter; 113. Display screen; 12. Rack;

[0029] 2. Carrier; 21. Accommodation cavity;

[0030] 3. a first detection component; 31. a first probe;

[0031] 4. second detection component; 41. second probe; 42. pressure sensor;

[0032] 5. driving assembly; 51. screw rod; 52. driving motor; 53. slide rail; 54. slider;

[0033] 6. Buffer assembly; 61. First mounting plate; 611. Avoidance space; 62. Spring;

[0034] 7. Second mounting plate;

[0035] 8. Limiter. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0037] Example

[0038] Reference Figure 1 to Figure 5 As shown, the utility model provides a pressure sensing test fixture, which includes a test machine 1, a carrier 2, a first detection component 3, a second detection component 4 and a drive component 5; pressure is applied to a product to be tested through the fixture provided by the utility model, so that the product to be tested is induced by the force and makes corresponding pressure feedback, and the force value obtained through the test feedback of the test fixture is compared and calibrated with the applied force to meet the test requirements; the utility model has high detection accuracy and good reliability.

[0039] Specifically, refer to Figure 1 As shown, the test machine 1 includes a base 11 and a frame 12 connected to each other, and the frame 12 is located on the top surface of the base 11; the carrier 2 is fixed to the top surface of the base 11 and is located on one side of the frame 12, and the carrier 2 is used to control the mobility of the product to be tested and to support the bearing product. The surface of the carrier 2 is provided with a receiving cavity 21 for receiving the product to be tested, referring to Figure 5 As shown, the accommodating cavity 21 is provided with a groove for inserting and fixing the product.

[0040] Specifically, refer to Figure 4 and Figure 5 As shown, the first detection component 3 includes a first probe 31, and the first probe 31 is arranged inside the carrier 2. The first probe 31 is set as a pressure sensing probe, and performs data feedback and transmission after sensing pressure; the sensing end of the first probe 31 is exposed to the cavity wall of the accommodating cavity 21; in some embodiments, the first detection component 3 includes a plurality of first probes 31 arranged in an arranged manner, and the number and arrangement of the first probes 31 can be determined according to the test points of the product to be tested.

[0041] Specifically, the second detection assembly 4 is fixed to one side of the frame 12, and is arranged on the same side of the frame 12 as the carrier 2; the second detection assembly 4 includes a second probe 41 and a pressure sensor 42, the second probe 41 is set as a pressure probe, the second probe 41 extends along the first direction, one end of which is fixed to the pressure sensor 42, and the free end of which is arranged toward the accommodating cavity 21, and when the second probe 41 moves along the first direction, its free end contacts the product to be tested and assists in applying pressure; the pressure sensor 42 is set as an S-type tension pressure sensor, and a spring is arranged inside it. Under the action of pressure or tension, the spring will undergo elastic deformation, thereby causing the conversion element on the surface to deform and transmit the pressure value. It should be noted that the pressure sensor 42, the second probe 41, the product to be tested and the first probe 31 are arranged in sequence along the first direction, so that the force application and force feedback of the first probe 31 and the second probe 41 are all generated along the first direction, avoiding the direction of force application and force receiving to offset and damage the probe, thereby improving the measurement accuracy of the pressure sensing test fixture.

[0042] Specifically, refer to Figure 1 As shown, the driving component 5 is used to drive the second detection component 4 to move along the first direction, contact and apply pressure to the product to be tested; in some embodiments, the first direction is set to a vertical direction. In some embodiments, the driving component 5 includes a screw 51 and a drive motor 52, and the power output end of the drive motor 52 is connected to the screw 51 to provide power for the movement of the second detection component 4 in the first direction; the screw 51 extends along the first direction and is fixed with the second detection component 4. The screw 51 converts rotary motion and linear motion, has the characteristics of high precision and high efficiency, and is reversible, and can drive the second detection component 4 to reciprocate in the first direction.

[0043] Further, refer to Figure 2As shown, the pressure sensing test fixture also includes a buffer component 6, and the buffer component 6 includes a pair of first mounting plates 61 and an elastic member; the pair of first mounting plates 61 are respectively located at the two ends of the second detection component 4, and the pair of first mounting plates 61 are connected by the elastic member, and the deformation direction of the elastic member is set to the first direction. The buffer component 6 is used to perform elastic buffering in the first direction when the second detection component 4 moves, so as to avoid the second probe 41 or / and the first probe 31 from causing rigid collision damage to the sensing element during the test; when the second detection component 4 is pressed and applied, it is ensured that the applied pressing force and the pressure detected by the pressure sensor 42 are not interfered by external forces. In some embodiments, the elastic member is set as a spring 62, and the spring 62 has at least four groups. The four groups of springs 62 are respectively located in the circumference of the second detection component 4 and are evenly arranged, so as to achieve a uniform buffering effect and avoid the first mounting plate 61 from tilting to one side; in other embodiments, the elastic member can be set as other elements that meet the buffering requirements, but is not limited thereto.

[0044] Furthermore, the second detection component 4 is fixed to the first mounting plate 61, the first mounting plate 61 is connected to the second mounting plate 7 and is fixed to the screw rod 51 through the second mounting plate 7; in some embodiments, the driving component 5 also includes a slide rail 53 and a slider 54, the slide rail 53 is fixed to the frame 12 and extends along the first direction, the slider 54 is fixed to the second mounting plate 7 and is slidably connected to the slide rail 53; the slide rail 53 plays a guiding role to assist the second detection component 4 to move along the first direction.

[0045] Further, refer to Figure 3 As shown, the first mounting plate 61 close to the second probe 41 is provided with an escape space 611 , and when the buffer assembly 6 and the second detection assembly 4 move, the escape space 611 allows the second probe 41 to pass through along the first direction.

[0046] Specifically, refer to Figure 1 As shown, the pressure sensing test fixture also includes a limiter 8, which is used to control the moving stroke and perform limit protection; the limiter 8 is arranged on the stroke path of the second detection component 4, and the limiter 8 is used to limit and stop the movement of the second detection component 4; the limiter 8 is located on the slide rail 53, and the position of the limiter 8 can be determined according to the moving stroke of the detection force; in some embodiments, the limiter 8 has two groups, one group of the limiters 8 is used to be set at the end of the stroke for limiting when the second detection component 4 approaches the product to be tested along the first direction, and the other group of the limiters 8 is used to be set at the end of the stroke for limiting when the second detection component 4 is lifted away from the product to be tested along the first direction.

[0047] Specifically, the pressure sensing test tooling also includes an output component; the output component is located inside the base 11, the output component includes a PLC, and the output component is also connected to the output end of the first detection component 3 and the output end of the second detection component 4, and is used to receive and process the pressure data obtained by the detection; the surface of the base 11 is provided with a switch control component 111, a counter 112 and a display screen 113, the counter 112 and the display screen 113 are connected to the output component, the counter 112 is used to count the number of pulses to realize measurement, counting and control functions, and the display screen 113 is used to display the pressure data information after detection and processing.

[0048] Specifically, when assembling the utility model, the driving motor 52 and the screw rod 51 are connected and fixed to the frame 12 in sequence in advance, so that they can run freely and smoothly, and then the second detection component 4 and the buffer component 6 are installed; the base 11 is mounted and the first detection component 3 is assembled, and then connected to the aforementioned frame part, and the output component is installed to realize circuit connection and then debug and verify to complete the assembly.

[0049] The working principle of a pressure sensing test tool described in the utility model is as follows:

[0050] The product to be tested is placed in the receiving groove on the surface of the carrier 2, and the product to be tested is brought into contact with the exposed sensing end of the first probe 31; the detection pressure value is set and the driving motor 52 is started to move the second detection component 4 along the first direction, and the detection pressure value is applied to the position on the product surface corresponding to the first probe 31; at the same time, the stable pressure applied during the movement is also transmitted to the pressure sensor 42 through the second probe 41; in each detection process, a first pressure value transmitted by the pressure sensor 42 and a second pressure value of the pressure feedback of the product to be tested transmitted by the first probe 31 are obtained. The utility model can process and transmit the first pressure value and the second pressure value to the display screen 113, which can not only reflect the feedback of the pressure on the product to be tested, but also can perform reliability analysis on the results according to the first pressure value and the detection pressure value, thereby improving the accuracy and authenticity of the product pressure detection results.

[0051] Obviously, the above embodiments are only examples for clear explanation and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the invention of the utility model.

Claims

1. A pressure sensing test tool, characterized in that: include, A test bench, comprising a base and a frame connected to each other, wherein the frame is located on the top surface of the base; A carrier, which is fixed to the top surface of the base and has a receiving cavity on its surface for receiving the product to be tested; A first detection component includes a first probe; the first probe is disposed inside the carrier, and a sensing end of the first probe is exposed to a cavity wall of the accommodating cavity; A second detection component is fixed to the frame; the second detection component includes a second probe and a pressure sensor, the second probe extends along the first direction, one end of the second probe is fixed to the pressure sensor, and the free end of the second probe is arranged toward the accommodating cavity; the pressure sensor, the second probe, the product to be tested and the first probe are arranged in sequence along the first direction; A driving assembly is used to drive the second detection assembly to move along the first direction and apply force to the product to be detected.

2. A pressure sensing test tool according to claim 1, characterized in that: It also includes a buffer component, which includes a pair of first mounting plates and an elastic member; the pair of first mounting plates are respectively located at two ends of the second detection component, the pair of first mounting plates are connected by the elastic member, and the deformation direction of the elastic member is set to the first direction.

3. A pressure sensing test tool according to claim 2, characterized in that: The first mounting plate is provided with an escape space on a side close to the second probe, and the escape space is used for the second probe to pass through along the first direction.

4. A pressure sensing test tool according to claim 2 or 3, characterized in that: The elastic member is configured as a spring, and the spring has at least four groups.

5. A pressure sensing test tool according to claim 2, characterized in that: The driving assembly includes a screw and a driving motor, and the power output end of the driving motor is connected to the screw; the second detection assembly is fixed to the first mounting plate, and the first mounting plate is fixed to the screw through the second mounting plate.

6. A pressure sensing test tool according to claim 5, characterized in that: The driving assembly further comprises a slide rail and a slider, wherein the slide rail is fixed to the frame and extends along the first direction, and the slider is fixed to the second mounting plate and slidably connected to the slide rail.

7. The pressure sensing test tool according to claim 1, characterized in that: It also includes a limiter, which is arranged on the travel path of the second detection component and is used to limit and stop the movement of the second detection component.

8. The pressure sensing test tool according to claim 1, characterized in that: It also includes an output component, which is located inside the base. The output component includes a PLC, and the output component is also connected to the output end of the first detection component and the output end of the second detection component.

9. A pressure sensing test tool according to claim 8, characterized in that: The surface of the base is provided with a switch control component, a counter and a display screen; the counter and the display screen are connected to the output component.

10. The pressure sensing test tool according to claim 1, characterized in that: The pressure sensor is configured as an S-type tension pressure sensor.

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