Device and method for detecting strength of heat-conducting silica gel gasket

Abstract

The invention discloses a heat-conducting silica gel gasket strength detection device and method, and relates to the technical field of heat-conducting silica gel gaskets, the heat-conducting silica gel gasket strength detection device comprises a workbench, clamping assemblies and a detection assembly, the clamping assemblies are arranged on the two sides of the interior of the workbench, a connecting frame is arranged at the outer end of the top of the workbench, and a top seat is arranged at the outer end of the connecting frame; the top end of the workbench and the bottom end of the top seat are provided with detection assemblies. The heat-conducting silica gel gasket and the suction cup are in an adsorption state, when the heat-conducting silica gel gasket is pulled and prolonged, the suction cup can synchronously move along with the heat-conducting silica gel gasket through deformation of the reset spring, if the quality of the heat-conducting silica gel gasket is unqualified, the heat-conducting silica gel gasket can generate large deformation in the pulling process, and the heat-conducting silica gel gasket is prevented from being damaged. At the moment, the negative pressure in the suction cup is relieved, the pneumatic control plate resets along with the tension sensing spring due to the fact that the negative pressure is relieved, and at the moment, the tension value sensed by the tension sensing spring is also eliminated.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal conductive silicone gasket detection, and in particular to a thermal conductive silicone gasket strength detection device and detection method. Background Art

[0002] Thermal conductive silicone gasket is a common thermal conductive interface material, widely used in heat dissipation of electronic equipment. Their main function is to fill the gap between heat-generating devices (such as CPU, GPU, LED, etc.) and radiators (such as aluminum heat sinks, heat pipes, etc.), reduce contact thermal resistance, and improve heat conduction efficiency. The strength test of thermal conductive silicone gasket is mainly to evaluate its performance when subjected to external forces such as stretching, tearing, and puncture in actual applications, as well as its stability after long-term use.

[0003] The common thermal conductive silicone gasket strength testing devices on the market can usually only test the stretching, tearing and puncture items at one time. After the single item test, it needs to be transferred to other testing equipment to perform the next test, which leads to low detection efficiency of thermal conductive silicone gaskets. At this time, when testing the stretching and tearing of thermal conductive silicone gaskets, usually only visual inspection can be used to determine whether stretching and tearing exist, and the accuracy of visual inspection is poor, which can easily affect the detection accuracy of thermal conductive silicone gaskets.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a thermal conductive silicone gasket strength detection device and detection method are proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a thermal conductive silicone gasket strength detection device and detection method to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a thermal conductive silicone gasket strength detection device, comprising a workbench, a clamping assembly and a detection assembly, the clamping assemblies are arranged on both sides of the interior of the workbench, and a connecting frame is arranged at the top outer end of the workbench, and a top seat is arranged at the outer end of the connecting frame, and a detection assembly is arranged at the top of the workbench and the bottom of the top seat, the detection assembly is arranged, the detection assembly comprises a fourth electric push rod, a suction box, a suction groove, a one-way air extraction valve, a tension sensing spring, an air control board, a reset spring and a suction cup, a suction box is arranged at the output end of the fourth electric push rod, and a suction groove is opened inside the suction box, a one-way air extraction valve is arranged inside the suction groove, a tension sensing spring is arranged inside the suction groove, and the outer end of the tension sensing spring is connected to the air control board, a suction cup is arranged at the bottom end of the suction box, and a reset spring is arranged between the suction cup and the suction box.

[0007] Furthermore, the clamping assembly includes a first electric push rod, a displacement seat, an electric control push seat, a clamping plate and a substrate. The output end of the first electric push rod is provided with a displacement seat, and the inner side of the displacement seat is provided with an electric control push seat. The output end of the electric control push seat is provided with a clamping plate, and the displacement seat is provided with a substrate on the side away from the first electric push rod.

[0008] Furthermore, a thermally conductive silicone gasket is clamped between the clamping plate and the base plate, and the electrically controlled push seat drives the clamping plate to move.

[0009] Furthermore, a through groove is provided on the inner side of the top seat, a second electric push rod is arranged at the bottom end of the top of the connecting frame, and a pushing seat is arranged at the output end of the second electric push rod, a puncture needle is arranged on the outer side of the bottom of the pushing seat, and a third electric push rod is arranged on both sides of the interior of the workbench, and a positioning plate is arranged at the output end of the third electric push rod.

[0010] Furthermore, the inner contour size of the through groove matches the inner contour size of the puncture needle, and the second electric push rod drives the push seat and the puncture needle to move.

[0011] Furthermore, the third electric push rod drives the positioning plate to move, and the displacement seat is positioned by the positioning plate.

[0012] Furthermore, the suction box is connected to the suction cup through the suction groove, and the fourth electric push rod drives the suction box to move.

[0013] Furthermore, the air control plate is elastically connected to the tension sensing spring, and the outer contour of the air control plate is in close contact with the inner contour of the suction groove.

[0014] Furthermore, the suction cup is elastically connected to the suction box via a return spring, and the suction cup is adsorbed onto the thermally conductive silicone gasket.

[0015] A thermally conductive silicone gasket strength detection device and detection method, the detection method of the thermally conductive silicone gasket strength detection device comprises the following steps:

[0016] S1: After the staff places the thermally conductive silicone gasket between the clamping plate and the base plate, the electric control push seat is operated to drive the clamping plate to move inside the displacement seat, so that the clamping plate and the base plate clamp and fix the thermally conductive silicone gasket, and the fourth electric push rod at the bottom end of the top seat and the top end of the workbench works at the same time to drive the suction box to move, so that the suction box drives the suction cup to fit the surface of the thermally conductive silicone gasket;

[0017] S2: The suction box works, and the suction groove sucks the air between the suction cup and the thermally conductive silicone gasket, so that the suction cup adsorbs the thermally conductive silicone gasket. During the process of the suction cup adsorbing the thermally conductive silicone gasket, the air pressure inside the suction groove will decrease, so that an air pressure difference will be formed at both ends of the air control board. The air control board will pull the tension sensing spring to move due to the air pressure difference, so that the tension sensing spring senses the tension. After the suction cup adsorbs the thermally conductive silicone gasket, the suction box stops working, and the one-way air extraction valve is placed inside the suction groove, so that the suction cup still maintains suction when the suction box stops working;

[0018] S3: The first electric push rod works to drive the displacement seat to move. During the displacement process, the displacement seat pulls the thermally conductive silicone gasket. At this time, the thermally conductive silicone gasket and the suction cup are in an adsorption state. When the thermally conductive silicone gasket is pulled and extended, the suction cup can be synchronously displaced with the thermally conductive silicone gasket through the deformation of the reset spring. The quality of the thermally conductive silicone gasket is unqualified. During the pulling process, the thermally conductive silicone gasket will produce a large deformation, which will cause the thermally conductive silicone gasket and the suction cup to be unable to fit completely. At this time, the negative pressure inside the suction cup will be released, and the air control board will be reset along with the tension sensing spring due to the release of the negative pressure. At this time, the tension value sensed by the tension sensing spring will also be eliminated;

[0019] S4: The fourth electric push rod at the top of the workbench returns to its position, so that the four groups of suction cups at the bottom of the thermally conductive silicone gasket are separated from it, and at the same time, the clamping assembly releases the clamping of the thermally conductive silicone gasket. At this time, the thermally conductive silicone gasket is only fixed by the four groups of suction cups on the top. After the adjustment is completed, the second electric push rod works to make the push seat drive the puncture needle to move inside the through groove, so that the puncture needle moves down until it contacts the top surface of the thermally conductive silicone gasket. At this time, the suction box works to adjust the adsorption force between the suction cup and the thermally conductive silicone gasket. After the adsorption force is adjusted, the second electric push rod works again to make the puncture needle perform puncture detection on the thermally conductive silicone gasket;

[0020] S5: The fourth electric push rod on the top of the workbench and the bottom of the top seat, which are not on the same side, works to make the two sets of suction cups adsorb the upper and lower end surfaces of the thermally conductive silicone gasket. After the suction cups adsorb and fix the thermally conductive silicone gasket, the fourth electric push rod is retracted to make the suction cups pull the thermally conductive silicone gasket in the opposite direction. Through this operation, the device's tear resistance to the thermally conductive silicone gasket is tested.

[0021] The present invention provides a thermal conductive silicone gasket strength detection device and detection method, which have the following beneficial effects:

[0022] 1. The present invention works through a suction box, which can suck the air between the suction cup and the thermally conductive silicone gasket through the suction groove, so that the suction cup can adsorb the thermally conductive silicone gasket. During the process of the suction cup adsorbing the thermally conductive silicone gasket, the air pressure inside the suction groove will decrease, which will form an air pressure difference at both ends of the air control board, and the air control board will pull the tension sensing spring to move due to the air pressure difference, which makes the tension sensing spring sense the tension. After the suction cup completes the adsorption of the thermally conductive silicone gasket, the suction box stops working, and the one-way air extraction valve is placed inside the suction groove, so that the suction cup can still maintain suction when the suction box stops working, and the displacement seat can be driven to move by the first electric push rod. During the displacement process, the displacement seat can pull the thermally conductive silicone gasket. At this time, the thermal conductive silicone gasket and the suction cup are in an adsorption state. When the thermal conductive silicone gasket is pulled and extended, the suction cup can be synchronously displaced with the thermal conductive silicone gasket through the deformation of the reset spring. If the quality of the thermal conductive silicone gasket is unqualified, the thermal conductive silicone gasket will produce a large deformation during the pulling process, which will cause the thermal conductive silicone gasket and the suction cup to be unable to fit completely. At this time, the negative pressure inside the suction cup will be released, and the air control board will be reset along with the tension sensing spring due to the release of the negative pressure. At this time, the tension value sensed by the tension sensing spring will also be eliminated. Through this design, the equipment can clearly judge whether the tensile strength of the thermal conductive silicone gasket is qualified by whether the tension sensing spring senses the tension value. Compared with traditional visual inspection, the inspection has higher accuracy and more intuitive results.

[0023] 2. The fourth electric push rod of the present invention located at the top of the workbench returns to its position, which can separate the four groups of suction cups at the bottom of the thermally conductive silicone gasket from it. At the same time, the clamping assembly releases the clamping of the thermally conductive silicone gasket. At this time, the thermally conductive silicone gasket is only fixed by the four groups of suction cups on the top. After the adjustment is completed, the second electric push rod works, which can enable the push seat to drive the puncture needle to move inside the through groove, so that the puncture needle can move down until it contacts the top surface of the thermally conductive silicone gasket. At this time, the suction box works to adjust the adsorption force between the suction cup and the thermally conductive silicone gasket. After the adsorption force is adjusted, the second electric push rod works again, which can enable the puncture needle to puncture the thermally conductive silicone gasket. At this time, the thermal conductive silicone gasket is fixed by the suction cup. During the downward movement of the puncture needle, if the puncture needle can successfully penetrate the thermal conductive silicone gasket, it indicates that the puncture resistance of the thermal conductive silicone gasket is unqualified; if the puncture needle moves downward to push the thermal conductive silicone gasket to separate it from the suction cup and still cannot penetrate the thermal conductive silicone gasket, it indicates that the puncture resistance of the thermal conductive silicone gasket is qualified. Through the above operations, the equipment can perform puncture resistance test immediately after the tensile force test of the thermal conductive silicone gasket is completed, which can greatly improve the detection efficiency of the equipment, and the puncture resistance test can utilize a large number of components for tensile force test, which can greatly reduce the production cost of the equipment.

[0024] 3. The present invention controls the operation of the fourth electric push rod on the top of the workbench and the bottom of the top seat which are not on the same side, so that the two groups of suction cups can adsorb the upper and lower end surfaces of the thermally conductive silicone gasket. After the suction cups adsorb and fix the thermally conductive silicone gasket, the fourth electric push rod is retracted, so that the suction cups can pull the thermally conductive silicone gasket in the opposite direction. Through this operation, the equipment can detect the tearing resistance of the thermally conductive silicone gasket. During the detection process, if the tensile resistance test is qualified, the suction cup will be separated from the thermally conductive silicone gasket under the action of the tensile force. If it is unqualified, the suction cup will tear the thermally conductive silicone gasket. In the detection process, the tension sensing spring can still judge the detection result by sensing whether there is tension, which enables the equipment to further improve the detection items while using the original components. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of a thermal conductive silicone gasket strength detection device of the present invention;

[0026] Figure 2 It is a schematic diagram of the overall structure of a heat-conducting silicone gasket strength detection device according to the present invention;

[0027] Figure 3 It is a schematic diagram of the three-dimensional structure of a clamping assembly of a thermal conductive silicone gasket strength detection device of the present invention;

[0028] Figure 4 It is a schematic diagram of the three-dimensional structure of a detection component of a thermal conductive silicone gasket strength detection device of the present invention;

[0029] Figure 5 A schematic diagram of the structure of a return spring and a suction cup of a thermally conductive silicone gasket strength detection device of the present invention;

[0030] Figure 6 It is a schematic cross-sectional structure diagram of a detection component of a thermal conductive silicone gasket strength detection device of the present invention;

[0031] Figure 7 A schematic diagram of a puncture performance test device for testing the strength of a thermally conductive silicone gasket according to the present invention;

[0032] Figure 8 A schematic diagram of tearing performance detection of a thermal conductive silicone gasket strength detection device of the present invention.

[0033] In the figure: 1. workbench; 2. clamping assembly; 201. first electric push rod; 202. displacement seat; 203. electric control push seat; 204. clamping plate; 205. base plate; 3. connecting frame; 4. top seat; 5. through groove; 6. second electric push rod; 7. push seat; 8. puncture needle; 9. third electric push rod; 10. positioning plate; 11. detection assembly; 1101. fourth electric push rod; 1102. suction box; 1103. suction groove; 1104. one-way air extraction valve; 1105. tension sensing spring; 1106. air control board; 1107. reset spring; 1108. suction cup; 12. thermal conductive silicone gasket. DETAILED DESCRIPTION

[0034] See also Figures 1 to 8 The present invention provides a technical solution: a thermal conductive silicone gasket strength detection device and detection method, including a workbench 1, a clamping assembly 2 and a detection assembly 11, the clamping assembly 2 is arranged on both sides of the interior of the workbench 1, and a connecting frame 3 is arranged on the top outer end of the workbench 1, and a top seat 4 is arranged on the outer end of the connecting frame 3, and the detection assembly 11 is arranged on the top of the workbench 1 and the bottom of the top seat 4, and the detection assembly 11 includes a fourth electric push rod 1101, a suction box 1102, a suction groove 1103, a one-way air extraction valve 1104, a tension sensing spring 1105, and an air control board 11 06. A reset spring 1107 and a suction cup 1108. A suction box 1102 is provided at the output end of the fourth electric push rod 1101, and a suction groove 1103 is opened inside the suction box 1102. A one-way air extraction valve 1104 is arranged inside the suction groove 1103. A tension sensing spring 1105 is arranged inside the suction groove 1103, and the outer end of the tension sensing spring 1105 is connected to the air control board 1106. A suction cup 1108 is provided at the bottom end of the suction box 1102, and a reset spring 1107 is provided between the suction cup 1108 and the suction box 1102.

[0035] See also Figures 1 to 8The clamping assembly 2 includes a first electric push rod 201, a displacement seat 202, an electric control push seat 203, a clamping plate 204 and a base plate 205. The output end of the first electric push rod 201 is provided with a displacement seat 202, and the inner side of the displacement seat 202 is provided with an electric control push seat 203, and the output end of the electric control push seat 203 is provided with a clamping plate 204, and the displacement seat 202 is far away from the first electric push rod 201. The base plate 205 is arranged between the clamping plate 204 and the base plate 205. The electric control push seat 203 drives the clamping plate 204 to move. A through groove 5 is provided on the inner side of the top seat 4, and a second electric push rod 6 is arranged at the top bottom end of the connecting frame 3, and a push seat 7 is provided at the output end of the second electric push rod 6, and a puncture needle 8 is arranged on the outer side of the bottom of the push seat 7. Both sides of the interior of the workbench 1 A third electric push rod 9 is arranged, and a positioning plate 10 is arranged at the output end of the third electric push rod 9, the inner contour size of the through groove 5 matches the inner contour size of the puncture needle 8, and the second electric push rod 6 drives the push seat 7 and the puncture needle 8 to move, the third electric push rod 9 drives the positioning plate 10 to move, and the displacement seat 202 is positioned by the positioning plate 10, the suction box 1102 is connected with the suction cup 1108 through the suction groove 1103, and the fourth electric push rod 1101 drives the suction box 1102 to move, the air control plate 1106 is elastically connected to the tension sensing spring 1105, and the outer contour of the air control plate 1106 is attached to the inner contour of the suction groove 1103, the suction cup 1108 is elastically connected to the suction box 1102 through the reset spring 1107, and the suction cup 1108 is adsorbed by the thermal conductive silicone gasket 12;

[0036] The specific operation is as follows: after the staff places the thermally conductive silicone gasket 12 to be tested between the clamping plate 204 and the base plate 205, the clamping plate 204 can be driven to move inside the displacement seat 202 through the operation of the electrically controlled push seat 203, so that the clamping plate 204 and the base plate 205 can clamp and fix the thermally conductive silicone gasket 12. After the thermally conductive silicone gasket 12 is fixed, the fourth electric push rod 1101 at the bottom end of the top seat 4 and the top end of the workbench 1 works at the same time, which can drive the suction box 1102 to move, so that the suction box 1102 can drive the suction cup 1108 to fit the surface of the thermally conductive silicone gasket 12. After the suction cup 1108 is fitted to the surface of the thermally conductive silicone gasket 12, the suction box 1102 works to suction the thermally conductive silicone gasket 12. The groove 1103 sucks away the air between the suction cup 1108 and the thermally conductive silicone gasket 12, so that the suction cup 1108 can adsorb the thermally conductive silicone gasket 12. During the process of the suction cup 1108 adsorbing the thermally conductive silicone gasket 12, the air pressure inside the suction groove 1103 will decrease, which will form an air pressure difference at the inner and outer ends of the air control board 1106, and the air control board 1106 will pull the tension sensing spring 1105 to move due to the air pressure difference, so that the tension sensing spring 1105 can sense the tension. After the suction cup 1108 completes the adsorption of the thermally conductive silicone gasket 12, the suction box 1102 stops working, and the one-way air extraction valve 1104 is placed inside the suction groove 1103, so that the suction cup 1108 can still maintain suction when the suction box 1102 stops working. , the first electric push rod 201 works to drive the displacement seat 202 to move. During the displacement process, the displacement seat 202 can pull the thermally conductive silicone gasket 12. At this time, the thermally conductive silicone gasket 12 and the suction cup 1108 are in an adsorption state. When the thermally conductive silicone gasket 12 is pulled and extended, the suction cup 1108 can be synchronously displaced with the thermally conductive silicone gasket 12 through the deformation of the reset spring 1107. If the thermally conductive silicone gasket 12 is of unqualified quality, the thermally conductive silicone gasket 12 will produce a large deformation during the pulling process, which will cause the thermally conductive silicone gasket 12 and the suction cup 1108 to be unable to fully fit. At this time, the negative pressure inside the suction cup 1108 will be released, and the air control board 1106 will be reset along with the tension sensing spring 1105 due to the release of the negative pressure. At this time, the tension value sensed by the tension sensing spring 1105 will also be eliminated. Through this design, the device can clearly judge whether the tensile strength of the thermally conductive silicone gasket 12 is qualified by whether the tension sensing spring 1105 senses the tension value. Compared with the traditional visual inspection, the inspection has higher accuracy and more intuitive inspection results. By driving the positioning plate 10 to move by the third electric push rod 9, the displacement trajectory of the displacement seat 202 can be adjusted, which enables the device to flexibly adjust the stretching force according to the inspection standards of different types of thermally conductive silicone gaskets 12. After the tensile strength inspection of the thermally conductive silicone gasket 12 is completed, the fourth electric push rod 1101 located at the top of the workbench 1 returns to its position, which can separate the four groups of suction cups 1108 at the bottom of the thermally conductive silicone gasket 12 from it.At the same time, the clamping assembly 2 releases the clamping of the thermally conductive silicone gasket 12. At this time, the thermally conductive silicone gasket 12 is only fixed by the four groups of suction cups 1108 on the top. After the adjustment is completed, the second electric push rod 6 works, which can enable the pushing seat 7 to drive the puncture needle 8 to move inside the through groove 5, so that the puncture needle 8 can move downward until it contacts the top surface of the thermally conductive silicone gasket 12. At this time, the suction box 1102 works to adjust the adsorption force between the suction cup 1108 and the thermally conductive silicone gasket 12. After the adsorption force is adjusted, the second electric push rod 6 works again, which can enable the puncture needle 8 to puncture the thermally conductive silicone gasket 12. At this time, the thermally conductive silicone gasket 12 is fixed by the suction cup 1108. During the downward movement of the puncture needle 8, if the puncture needle 8 can successfully pass through the thermally conductive silicone gasket 12, it indicates that the thermally conductive silicone gasket 12 is fixed. The puncture resistance of the thermal silicone gasket 12 is unqualified. If the puncture needle 8 moves downward to push the thermal silicone gasket 12 to separate it from the suction cup 1108 and still cannot penetrate the thermal silicone gasket 12, it indicates that the puncture resistance of the thermal silicone gasket 12 is qualified. Through the above operation, the equipment can immediately perform the puncture resistance test after the tensile force test of the thermal silicone gasket 12 is completed, which can greatly improve the detection efficiency of the equipment, and the puncture resistance test can utilize a large number of components for tensile force test, which greatly reduces the production cost of the equipment. After the puncture resistance test is completed, the equipment controls the fourth electric push rod 1101 on the non-same side of the top end of the workbench 1 and the bottom end of the top seat 4 to work, so that the two sets of suction cups 1108 can adsorb the upper and lower end surfaces of the thermal silicone gasket 12 (, Figure 7 ), after the suction cup 1108 completes the adsorption and fixing of the thermal conductive silicone gasket 12, the fourth electric push rod 1101 is retracted, so that the suction cup 1108 can pull the thermal conductive silicone gasket 12 in the opposite direction. Through this operation, the device can test the tearing resistance of the thermal conductive silicone gasket 12. During the testing process, if the tensile strength test is qualified, the suction cup 1108 will separate from the thermal conductive silicone gasket 12 under the action of the tensile force. If it is unqualified, the suction cup 1108 will tear the thermal conductive silicone gasket 12. In the testing process, the tension sensing spring 1105 can still judge the test result by sensing whether there is tension, which enables the equipment to further improve the detection items while using the original components.

[0037] In summary, when using the thermal conductive silicone gasket strength detection device and detection method, first, the staff will place the thermal conductive silicone gasket 12 that needs to be detected between the clamping plate 204 and the base plate 205, and then drive the clamping plate 204 to move inside the displacement seat 202 through the operation of the electrically controlled push seat 203, so that the clamping plate 204 and the base plate 205 can clamp and fix the thermal conductive silicone gasket 12. After the thermal conductive silicone gasket 12 is fixed, the fourth electric push rod 1101 at the bottom end of the top seat 4 and the top end of the workbench 1 works at the same time, which can drive the suction box 1102 to move, so that the suction box 1102 can drive the suction cup 1108 to fit the surface of the thermal conductive silicone gasket 12;

[0038] Then, after the suction cup 1108 is fitted onto the surface of the thermally conductive silicone gasket 12, the suction box 1102 works to suck away the air between the suction cup 1108 and the thermally conductive silicone gasket 12 through the suction groove 1103, so that the suction cup 1108 can adsorb the thermally conductive silicone gasket 12. During the process of the suction cup 1108 adsorbing the thermally conductive silicone gasket 12, the air pressure inside the suction groove 1103 will decrease, so that an air pressure difference will be formed at the inner and outer ends of the air control board 1106, and the air control board 1106 will pull the tension sensing spring 1105 to move due to the air pressure difference, so that the tension sensing spring 1105 can sense the tension;

[0039] Then, after the suction cup 1108 completes the absorption of the thermally conductive silicone gasket 12, the suction box 1102 stops working, and the one-way air extraction valve 1104 is placed inside the suction groove 1103, so that the suction cup 1108 can still maintain suction when the suction box 1102 stops working, and the displacement seat 202 can be driven to move by the first electric push rod 201. During the displacement process, the displacement seat 202 can pull the thermally conductive silicone gasket 12. At this time, the thermally conductive silicone gasket 12 and the suction cup 1108 are in an adsorbed state. When the thermally conductive silicone gasket 12 is pulled and extended, the suction cup 1108 can be synchronously displaced with the thermally conductive silicone gasket 12 through the deformation of the reset spring 1107. If the quality of the thermally conductive silicone gasket 12 is unqualified, the thermally conductive silicone gasket 12 will produce a large amount of Large deformation will cause the thermal conductive silicone gasket 12 to be unable to fully fit with the suction cup 1108. At this time, the negative pressure inside the suction cup 1108 will be released, and the air control plate 1106 will be reset along with the tension sensing spring 1105 due to the release of the negative pressure. At this time, the tension value sensed by the tension sensing spring 1105 will also be eliminated. Through this design, the device can clearly judge whether the tensile strength of the thermal conductive silicone gasket 12 is qualified by whether the tension sensing spring 1105 senses the tension value. Compared with traditional visual inspection, the detection accuracy of this detection is higher and the detection result is more intuitive. By driving the positioning plate 10 to move by the third electric push rod 9, the displacement trajectory of the displacement seat 202 can be adjusted, which enables the device to flexibly adjust the stretching force according to the detection standards of different types of thermal conductive silicone gaskets 12;

[0040] Subsequently, after the tensile force test of the thermally conductive silicone gasket 12 is completed, the fourth electric push rod 1101 located at the top of the workbench 1 returns to its position, which can separate the four groups of suction cups 1108 at the bottom end of the thermally conductive silicone gasket 12 from it, and at the same time, the clamping assembly 2 releases the clamping of the thermally conductive silicone gasket 12. At this time, the thermally conductive silicone gasket 12 is only fixed by the four groups of suction cups 1108 on the top. After the adjustment is completed, the second electric push rod 6 works, which can enable the pushing seat 7 to drive the puncture needle 8 to move inside the through groove 5, so that the puncture needle 8 can move downward until it contacts the top surface of the thermally conductive silicone gasket 12. At this time, the suction box 1102 works to adjust the adsorption force between the suction cup 1108 and the thermally conductive silicone gasket 12. After the adsorption force adjustment is completed, the second electric push rod 6 works again to enable the puncture needle 8 punctures the thermally conductive silicone gasket 12. At this time, the thermally conductive silicone gasket 12 is fixed by the suction cup 1108. During the downward movement of the puncture needle 8, if the puncture needle 8 can successfully penetrate the thermally conductive silicone gasket 12, it indicates that the puncture resistance of the thermally conductive silicone gasket 12 is unqualified. If the puncture needle 8 moves downward to push the thermally conductive silicone gasket 12 to separate it from the suction cup 1108 and still cannot penetrate the thermally conductive silicone gasket 12, it indicates that the puncture resistance of the thermally conductive silicone gasket 12 is qualified. Through the above operation, the equipment can immediately perform the puncture resistance test after the tensile force test of the thermally conductive silicone gasket 12 is completed, which can greatly improve the detection efficiency of the equipment, and the puncture resistance test can use a large number of components for tensile force test, which greatly reduces the production cost of the equipment;

[0041] Finally, after the puncture resistance performance test is completed, the device controls the fourth electric push rod 1101 on the top of the workbench 1 and the bottom of the top seat 4 on the non-same side to work, so that the two sets of suction cups 1108 can adsorb the upper and lower end surfaces of the thermally conductive silicone gasket 12. After the suction cup 1108 has adsorbed and fixed the thermally conductive silicone gasket 12, the fourth electric push rod 1101 retreats, so that the suction cup 1108 can pull the thermally conductive silicone gasket 12 in the opposite direction. Through this operation, the device can test the tearing resistance of the thermally conductive silicone gasket 12. During the testing process, if the tensile test is qualified, the suction cup 1108 will separate from the thermally conductive silicone gasket 12 under the action of tension. If it is unqualified, the suction cup 1108 will tear the thermally conductive silicone gasket 12. In the testing process, the tension sensing spring 1105 can still judge the test result by sensing whether there is tension, which enables the equipment to further improve the test items while using the original components.

[0042] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A thermal conductive silicone gasket strength detection device, characterized in that: The invention comprises a workbench (1), a clamping assembly (2) and a detection assembly (11), wherein the clamping assemblies (2) are arranged on both sides of the interior of the workbench (1), and a connecting frame (3) is arranged at the top outer end of the workbench (1), and a top seat (4) is arranged at the outer end of the connecting frame (3), and a detection assembly (11) is arranged at the top end of the workbench (1) and the bottom end of the top seat (4), and the detection assembly (11) comprises a fourth electric push rod (1101), a suction box (1102), a suction groove (1103), a one-way air extraction valve (1104), a tension sensing spring (1105), an air control plate (1106), a reset spring (1107) and a suction The output end of the fourth electric push rod (1101) is provided with a suction box (1102), and a suction groove (1103) is opened inside the suction box (1102), a one-way air extraction valve (1104) is arranged inside the suction groove (1103), a tension sensing spring (1105) is arranged inside the suction groove (1103), and the outer end of the tension sensing spring (1105) is connected to the air control plate (1106), a suction cup (1108) is arranged at the bottom end of the suction box (1102), and a reset spring (1107) is arranged between the suction cup (1108) and the suction box (1102).

2. A thermal conductive silicone gasket strength detection device according to claim 1, characterized in that: The clamping assembly (2) comprises a first electric push rod (201), a displacement seat (202), an electric control push seat (203), a clamping plate (204) and a base plate (205); the displacement seat (202) is arranged at the output end of the first electric push rod (201), and the electric control push seat (203) is arranged on the inner side of the displacement seat (202); the clamping plate (204) is arranged at the output end of the electric control push seat (203), and the base plate (205) is arranged on the side of the displacement seat (202) away from the first electric push rod (201).

3. A thermal conductive silicone gasket strength detection device according to claim 2, characterized in that: A heat-conducting silica gel gasket (12) is clamped between the clamping plate (204) and the base plate (205), and the electrically controlled push seat (203) drives the clamping plate (204) to move.

4. A thermal conductive silicone gasket strength detection device according to claim 1, characterized in that: A through groove (5) is provided on the inner side of the top seat (4), a second electric push rod (6) is arranged at the bottom end of the top of the connecting frame (3), and a pushing seat (7) is arranged at the output end of the second electric push rod (6), a puncture needle (8) is arranged on the outer side of the bottom of the pushing seat (7), and a third electric push rod (9) is arranged on both sides of the interior of the workbench (1), and a positioning plate (10) is arranged at the output end of the third electric push rod (9).

5. A thermal conductive silicone gasket strength detection device according to claim 4, characterized in that: The inner contour size of the through groove (5) matches the inner contour size of the puncture needle (8), and the second electric push rod (6) drives the push seat (7) and the puncture needle (8) to move.

6. A thermal conductive silicone gasket strength detection device according to claim 4, characterized in that: The third electric push rod (9) drives the positioning plate (10) to move, and the displacement seat (202) is positioned by the positioning plate (10).

7. A thermally conductive silicone gasket strength detection device according to claim 1, characterized in that: The suction box (1102) is connected to the suction cup (1108) via the suction groove (1103), and the fourth electric push rod (1101) drives the suction box (1102) to move.

8. A thermal conductive silicone gasket strength detection device according to claim 1, characterized in that: The air control plate (1106) is elastically connected to the tension sensing spring (1105), and the outer contour of the air control plate (1106) is in contact with the inner contour of the suction groove (1103).

9. A thermal conductive silicone gasket strength detection device according to claim 3, characterized in that: The suction cup (1108) is elastically connected to the suction box (1102) via a return spring (1107), and the suction cup (1108) is adsorbed onto the thermally conductive silicone gasket (12).

10. A method for detecting the strength of a thermally conductive silicone gasket, applied to a device for detecting the strength of a thermally conductive silicone gasket as claimed in any one of claims 1 to 9, characterized in that: The detection method of the thermal conductive silicone gasket strength detection device comprises the following steps: S1: After the staff places the thermally conductive silicone gasket (12) between the clamping plate (204) and the base plate (205), the staff operates the electrically controlled push seat (203) to drive the clamping plate (204) to move inside the displacement seat (202), so that the clamping plate (204) and the base plate (205) clamp and fix the thermally conductive silicone gasket (12), and the fourth electric push rod (1101) at the bottom end of the top seat (4) and the top end of the workbench (1) operates at the same time to drive the suction box (1102) to move, so that the suction box (1102) drives the suction cup (1108) to fit the surface of the thermally conductive silicone gasket (12); S2: The suction box (1102) works, and the suction groove (1103) sucks away the air between the suction cup (1108) and the thermally conductive silicone gasket (12), so that the suction cup (1108) adsorbs the thermally conductive silicone gasket (12). During the process of the suction cup (1108) adsorbing the thermally conductive silicone gasket (12), the air pressure inside the suction groove (1103) decreases, so that an air pressure difference is formed at the inner and outer ends of the air control plate (1106), and the air The control panel (1106) will pull the tension sensing spring (1105) to move due to the air pressure difference, so that the tension sensing spring (1105) senses the tension. After the suction cup (1108) has finished adsorbing the thermal conductive silicone gasket (12), the suction box (1102) stops working, and the one-way air extraction valve (1104) is placed inside the suction groove (1103), so that the suction cup (1108) still maintains suction when the suction box (1102) stops working. S3: The first electric push rod (201) works to drive the displacement seat (202) to move. During the displacement process, the displacement seat (202) pulls the thermally conductive silicone gasket (12). At this time, the thermally conductive silicone gasket (12) and the suction cup (1108) are in an adsorption state. When the thermally conductive silicone gasket (12) is pulled and extended, the suction cup (1108) can be synchronously displaced with the thermally conductive silicone gasket (12) through the deformation of the reset spring (1107). If the thermally conductive silicone gasket (12) is of unqualified quality, the thermally conductive silicone gasket (12) will produce a large deformation during the pulling process, which will cause the thermally conductive silicone gasket (12) and the suction cup (1108) to be unable to completely fit. At this time, the negative pressure inside the suction cup (1108) will be released, and the air control plate (1106) will be reset along with the tension sensing spring (1105) due to the release of the negative pressure. At this time, the tension value sensed by the tension sensing spring (1105) will also be eliminated; S4: The fourth electric push rod (1101) located at the top of the workbench (1) returns to its position, so that the four groups of suction cups (1108) at the bottom of the thermally conductive silicone gasket (12) are separated from it, and at the same time, the clamping assembly (2) releases the clamping of the thermally conductive silicone gasket (12). At this time, the thermally conductive silicone gasket (12) is only fixed by the four groups of suction cups (1108) at the top. After the adjustment is completed, the second electric push rod (6) works to make the push seat (7) drive the puncture needle (8) to move inside the through groove (5), so that the puncture needle (8) moves downward until it contacts the top surface of the thermally conductive silicone gasket (12). At this time, the suction box (1102) works to adjust the adsorption force between the suction cup (1108) and the thermally conductive silicone gasket (12). After the adsorption force adjustment is completed, the second electric push rod (6) works again to make the puncture needle (8) puncture the thermally conductive silicone gasket (12) for detection; S5: The fourth electric push rod (1101) on the top of the workbench (1) and the bottom of the top seat (4) on the side other than the same side is operated, so that the two sets of suction cups (1108) adsorb the upper and lower end surfaces of the thermally conductive silicone gasket (12). After the suction cups (1108) adsorb and fix the thermally conductive silicone gasket (12), the fourth electric push rod (1101) is retracted, so that the suction cups (1108) pull the thermally conductive silicone gasket (12) in the opposite direction. Through this operation, the device's tear resistance on the thermally conductive silicone gasket (12) is tested.

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