Device for detecting pressure resistance and air tightness of sensor

Abstract

The utility model relates to a pressure resistance and air tightness detection device for a sensor, which comprises a support frame, at least two groups of pressing assemblies and at least two groups of jig assemblies, the at least two groups of pressing assemblies are arranged on the support frame, each pressing assembly comprises a pressing cylinder, a pressing block and an upper die, the fixed end of the pressing cylinder is connected with the support frame, and the fixed end of the pressing block is connected with the jig assemblies. The lower pressing block is arranged at the telescopic end of the lower pressing air cylinder, the upper die is embedded in the lower pressing block, an air inlet is formed in the side wall of the upper die, and an air outlet is formed in the surface of the side, away from the lower pressing block, of the upper die. The at least two sets of jig assemblies are arranged at the bottom of the upper die, each jig assembly comprises a mounting plate, a supporting block and a lower die, the supporting blocks are arranged on the mounting plates, and the lower dies are embedded in the supporting blocks; placement grooves are formed in the attached sides of the upper die and the lower die, and a to-be-tested product is mounted in the placement grooves. According to the utility model, the pressure resistance and air tightness detection of the sensor can be simultaneously completed at one time, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of precision electronic component detection, in particular to a sensor pressure resistance and air tightness detection device. Background Art

[0002] A photoelectric sensor is a component that converts light signals into electrical signals using the principle of photoelectric conversion. Its operating principle is based on the photoelectric effect, which is a phenomenon in which when light shines on certain substances, the electrons in the substance absorb the energy of the photons, generating a corresponding electrical effect.

[0003] Photoelectric sensors undergo reliability testing before leaving the factory, primarily including voltage resistance testing and airtightness testing. The purpose of the voltage resistance test is to verify that the sensor possesses sufficient insulation strength and electrical performance under certain voltage conditions to prevent breakdown, leakage, or damage caused by high voltage. The airtightness test of the photoelectric sensor verifies the sealing performance of its housing and sealing components, ensuring that the sensor can maintain internal stability under specific conditions and prevent the intrusion of external substances such as gases and liquids, thereby ensuring the sensor's measurement accuracy and reliability.

[0004] In the prior art, the detection of the air tightness and pressure resistance performance of the photoelectric sensor requires sequential testing using different equipment, and the sealing test is performed only after the pressure resistance test is completed, which greatly reduces the detection efficiency. Utility Model Content

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect of low detection efficiency of sensor sealing test and pressure resistance test in the prior art.

[0006] In order to solve the above technical problems, the utility model provides a sensor pressure resistance and air tightness detection device, comprising:

[0007] Support frame;

[0008] At least two groups of pressing components are arranged on the support frame, the pressing components include a pressing cylinder, a pressing block and an upper mold, the fixed end of the pressing cylinder is connected to the support frame, the pressing block is arranged at the telescopic end of the pressing cylinder, the upper mold is embedded in the pressing block, the side wall of the upper mold is provided with an air inlet, and the surface of the upper mold away from the lower block is provided with an air outlet;

[0009] At least two sets of jig assemblies, at least two sets of the jig assemblies are arranged at the bottom of the upper mold, the jig assembly includes a mounting plate, a support block and a lower mold, the support block is arranged on the mounting plate, and the lower mold is embedded in the support block; a placement groove is provided on one side where the upper mold and the lower mold are fitted, and the placement groove is used to install the product to be tested.

[0010] In one embodiment of the present invention, a wire passing groove is provided on one side of the placement groove, and the wire passing groove is communicated with the placement groove.

[0011] In one embodiment of the present invention, a sealing groove is provided on the outside of the placement groove, the inside of the sealing groove is communicated with the wire passing groove, and the sealing groove and the wire passing groove are filled with sealing strips.

[0012] In one embodiment of the present invention, a first probe is provided on the surface of the upper mold, and a conductive hole cooperating with the first probe is opened on the lower mold.

[0013] In one embodiment of the present invention, a wire fixing rack is provided on the mounting plate, and the wire fixing rack is used to place cables, and the cables are electrically connected to the product to be tested.

[0014] In one embodiment of the present invention, a wire clamp is provided on one side of the wire fixing frame, and the cable is clamped in the wire clamp.

[0015] In one embodiment of the present invention, a socket is further provided on the mounting plate, and an end of the cable away from the product to be tested is electrically connected to the socket.

[0016] In one embodiment of the present invention, a fixing bracket is provided on one side of the telescopic end of the downward-pressing cylinder, and a second probe is provided on the fixing bracket. The downward-pressing cylinder is extended to drive the second probe to abut against the socket.

[0017] In one embodiment of the present invention, a conductive sheet cooperating with the second probe is provided on the socket, and the conductive sheet is electrically connected to the socket.

[0018] In one embodiment of the present invention, solenoid valves are provided on both sides of the support frame, and the solenoid valves are communicated with the air inlet.

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

[0020] The utility model discloses a sensor pressure resistance and air tightness detection device, which arranges an air path inside the upper mold, so that the air tightness test of the sensor can be performed after the upper mold and the lower mold are fitted together; secondly, after the upper mold and the lower mold are fitted together, the voltage is connected to perform a pressure resistance test on the sensor arranged inside; the utility model can simultaneously complete the pressure resistance and air tightness tests on the sensor at one time, thereby improving the detection efficiency. 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 below based on the specific embodiments of the utility model and in conjunction with the accompanying drawings, wherein

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 for Figure 1 Schematic diagram of the structure of the middle and lower pressure components;

[0024] Figure 3 for Figure 2 Schematic diagram of the structure of the middle and upper mold;

[0025] Figure 4 for Figure 1 Schematic diagram of the structure of the middle fixture component;

[0026] Figure 5 for Figure 4 Schematic diagram of the structure of the middle and lower molds;

[0027] Explanation of the reference numerals in the specification: 1. Support frame; 2. Pressing assembly; 3. Fixture assembly; 4. Product to be tested; 5. Cable; 6. Sealing strip; 11. Solenoid valve; 21. Pressing cylinder; 22. Pressing block; 23. Upper mold; 24. First probe; 25. Fixing frame; 26. Second probe; 31. Mounting plate; 32. Support block; 33. Lower mold; 34. Wire fixing frame; 35. Wire fixing clamp; 36. Socket; 37. Conductive sheet; 231. Air inlet; 232. Air outlet; 233. Placement slot; 234. Sealing slot; 235. Wire passing slot; 331. Conductive hole. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0029] Reference Figure 1-Figure 5 As shown, the utility model discloses a sensor pressure resistance and air tightness detection device, comprising:

[0030] Support frame 1;

[0031] At least two groups of pressing components 2 are arranged on the support frame 1, and the pressing components 2 include a pressing cylinder 21, a pressing block 22 and an upper mold 23. The fixed end of the pressing cylinder 21 is connected to the support frame 1, the pressing block 22 is arranged at the telescopic end of the pressing cylinder 21, and the upper mold 23 is embedded in the pressing block 22. The side wall of the upper mold 23 is provided with an air inlet 231, and the surface of the upper mold 23 away from the lower block 22 is provided with an air outlet 232;

[0032] At least two groups of jig assemblies 3 are arranged at the bottom of the upper mold 23. The jig assembly 3 includes a mounting plate 31, a support block 32 and a lower mold 33. The support block 32 is arranged on the mounting plate 31, and the lower mold 33 is embedded in the support block 32; a placement groove 233 is provided on one side where the upper mold 23 and the lower mold 33 are fitted, and the placement groove 233 is used to install the product 4 to be tested.

[0033] The down-pressing assembly 2 and the fixture assembly 3 in the present invention are arranged relative to each other in the upper and lower parts. The down-pressing cylinder 21 in the down-pressing assembly 2 extends to drive the upper mold 23 to fit with the lower mold 33. A placement groove 233 is provided on the side where the upper mold 23 and the lower mold 33 fit together. During the testing process, the product 4 to be tested is first placed in the placement groove 233 of the lower mold 33. The down-pressing cylinder 21 drives the upper mold 23 downward to press the product 4 to be tested between the upper mold 23 and the lower mold 33. As a preferred embodiment of the present invention, the upper mold 23 and the lower mold 33 are both made of conductive metal, the down-pressing block 22 and the support block 32 are made of insulating material, and the upper mold 23 and the lower mold 33 are energized after fitting together. Specifically, an AC500V voltage is used to test the pressure resistance performance of the product 4 to be tested inside. Secondly, an air inlet is opened on the side wall of the upper mold 23, and compressed gas is introduced from the air inlet 231, passes through the air channel inside the upper mold 23, and is integrated into the placement groove 233 from the air outlet 232 at the bottom of the upper mold 23, and the air tightness test of the product to be tested 4 in the placement groove 233 is performed at a fixed air pressure.

[0034] The utility model provides an air path inside the upper mold 23, so that the air tightness test can be performed after the upper mold 23 and the lower mold 33 are fitted together; secondly, after the upper mold 23 and the lower mold 33 are fitted together, a voltage is connected to perform a pressure resistance test on the sensor provided inside; the utility model can simultaneously complete the pressure resistance and air tightness tests on the sensor at one time, thereby improving the detection efficiency.

[0035] Furthermore, a wire passing groove 235 is provided on one side of the placement groove 233 , and the wire passing groove 235 is communicated with the placement groove 233 .

[0036] Specifically, each product 4 (sensor) to be tested is connected to a wiring harness, which is connected to the product 4 to be tested via the wiring harness during the testing process, so that the product 4 to be tested is in a working state, and the product in the working state is tested.

[0037] Furthermore, a sealing groove 234 is provided outside the placement groove 233 , and the sealing groove 234 is communicated with the wire passing groove 235 . The sealing groove 234 and the wire passing groove 235 are filled with a sealing strip 6 .

[0038] Specifically, when conducting an air tightness test, it is necessary to inflate the placement groove 233. In order to avoid leakage at the joint between the upper and lower placement grooves 233, a sealing groove 234 is set on the outside of the placement groove 233, and a sealing strip 6 is filled in the sealing groove 234 to improve the tightness of the fit between the upper mold 23 and the lower mold 33, thereby ensuring effective air tightness testing.

[0039] Furthermore, a first probe 24 is provided on the surface of the upper mold 23 , and a conductive hole 331 is opened on the lower mold 33 to cooperate with the first probe 24 .

[0040] Since both the upper mold 23 and the lower mold 33 are provided with a sealing groove 234 on one side of the bonding, in order to prevent the sealing strip 6 from affecting the contact between the upper mold 23 and the lower mold 33 after bonding, a first probe 24 is provided on the lower mold 33. The downward pressure cylinder 21 extends and drives the first probe 24 to connect with the conductive hole 331 on the lower mold 33, ensuring that the upper mold 23 and the lower mold 33 are in effective contact after bonding, so as to perform a pressure test on the product.

[0041] Furthermore, a wire fixing rack 34 is provided on the mounting plate 31 , and the wire fixing rack 34 is used to place the cable 5 , and the cable 5 is electrically connected to the product under test 4 . A wire fixing clamp 35 is provided on one side of the wire fixing rack 34 , and the cable 5 is clamped in the wire fixing clamp 35 .

[0042] Specifically, after the sensor cable 5 is coiled, the coiled cable 5 is placed on the cable fixing frame 34 for fixing. One end of the cable 5 is connected to the product to be tested 4 , and the other end is fixed by the cable fixing clamp 35 .

[0043] Furthermore, a socket 36 is provided on the mounting plate 31, and the end of the cable 5 away from the product to be tested 4 is electrically connected to the socket 36. A fixing bracket 25 is provided on one side of the extension end of the downward pressure cylinder 21, and a second probe 26 is provided on the fixing bracket 25. The extension of the downward pressure cylinder 21 drives the second probe 26 to abut against the socket 36.

[0044] Specifically, the end of the cable 5 away from the product to be tested 4 is connected to the socket 36, the second probe 26 is connected to the power grid, and the downward pressure cylinder 21 extends downward to drive the second probe 26 to connect with the socket 36, and then the product to be tested 4 is connected to test the product to be tested 4 in the working state.

[0045] Furthermore, the socket 36 is provided with a conductive sheet 37 that cooperates with the second probe 26, and the conductive sheet 37 is electrically connected to the socket 36. Specifically, the conductive sheet 37 and the socket 36 are detachably connected, and the second probe 26 and the conductive sheet 37 are in contact and electrically conductive.

[0046] Furthermore, solenoid valves 11 are provided on both sides of the support frame 1, and the solenoid valves 11 are connected to the air inlet 231. Specifically, in the present invention, the air pipe is connected to the air inlet 231 to control the amount of gas entering the air inlet 231, thereby controlling the air pressure intensity entering the placement groove 233.

[0047] In summary, the utility model introduces a sensor pressure resistance and air tightness testing device. By setting an air path inside the upper mold 23, the air tightness test of the sensor can be performed after the upper mold 23 and the lower mold 33 are fitted together; secondly, after the upper mold 23 and the lower mold 33 are fitted together, the voltage is turned on to perform a pressure resistance test on the sensor set inside; the utility model can complete the pressure resistance and air tightness testing of the sensor at one time, thereby improving the detection efficiency.

[0048] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A sensor pressure resistance and air tightness detection device, characterized in that: include: Support frame; At least two groups of pressing components are arranged on the support frame, the pressing components include a pressing cylinder, a pressing block and an upper mold, the fixed end of the pressing cylinder is connected to the support frame, the pressing block is arranged at the telescopic end of the pressing cylinder, the upper mold is embedded in the pressing block, the side wall of the upper mold is provided with an air inlet, and the surface of the upper mold away from the lower block is provided with an air outlet; At least two sets of jig assemblies, at least two sets of the jig assemblies are arranged at the bottom of the upper mold, the jig assembly includes a mounting plate, a support block and a lower mold, the support block is arranged on the mounting plate, and the lower mold is embedded in the support block; a placement groove is provided on one side where the upper mold and the lower mold are fitted, and the placement groove is used to install the product to be tested.

2. The sensor pressure resistance and air tightness detection device according to claim 1, characterized in that: A wire passing groove is provided on one side of the placement groove, and the wire passing groove is communicated with the placement groove.

3. The sensor pressure resistance and air tightness detection device according to claim 2, characterized in that: A sealing groove is provided on the outside of the placement groove, the inside of the sealing groove is communicated with the wire passing groove, and the sealing groove and the wire passing groove are filled with sealing strips.

4. The sensor pressure resistance and air tightness detection device according to claim 1, characterized in that: A first probe is provided on the surface of the upper mold, and a conductive hole matched with the first probe is opened on the lower mold.

5. The sensor pressure resistance and air tightness detection device according to claim 1, characterized in that: The mounting plate is provided with a wire fixing frame, on which cables are placed, and the cables are electrically connected to the product to be tested.

6. The sensor pressure resistance and air tightness detection device according to claim 5, characterized in that: A wire fixing clamp is provided on one side of the wire fixing frame, and the cable is clamped in the wire fixing clamp.

7. The sensor pressure resistance and air tightness detection device according to claim 5, characterized in that: The mounting plate is further provided with a socket, and one end of the cable away from the product to be tested is electrically connected to the socket.

8. The sensor pressure resistance and air tightness detection device according to claim 7, characterized in that: A fixing frame is provided on one side of the telescopic end of the downward-pressing cylinder, and a second probe is provided on the fixing frame. The downward-pressing cylinder is extended to drive the second probe to abut against the socket.

9. The sensor pressure resistance and air tightness detection device according to claim 8, characterized in that: The socket is provided with a conductive sheet that matches the second probe, and the conductive sheet is electrically connected to the socket.

10. The sensor pressure resistance and air tightness detection device according to claim 1, characterized in that: Solenoid valves are provided on both sides of the support frame, and the solenoid valves are communicated with the air inlet.

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