Cold-drawing and hot-pressing fatigue testing machine for sealing material

Abstract

The utility model provides a cold-drawing hot-pressing fatigue testing machine for a sealing material, which relates to the technical field of fatigue testing machines and comprises a test supporting seat, a pressure detection plate for pressure detection is fixedly mounted in the test supporting seat, and a negative pressure component for sucking the material is arranged in the middle of the test supporting seat. And a lifting support for lifting adjustment is fixedly mounted at the top end of the test supporting seat. The testing machine has the advantages that the rotatable test supporting seat is arranged in the testing machine to clamp and fix a tested material, the negative pressure assembly is arranged in the center of the test supporting seat to perform negative pressure adsorption on the tested material, and the test materials with various structures can be conveniently clamped and fixed by combining with the clamping of the test supporting seat; according to the material fixing device, material loosening caused by the limited clamping contact area is avoided, the stability of test material fixing can be effectively enhanced, the applicability of material fixing can be improved, and fixing tests can be conducted on unused materials easily.

Description

Technical Field

[0001] This utility model relates to the field of fatigue testing machine technology, and in particular to a cold-drawing and hot-pressing fatigue testing machine for sealing materials. Background Technology

[0002] A fatigue testing machine is a machine mainly used to determine the fatigue performance of metals and their alloys under tensile, compressive, or alternating tensile and compressive loads at room temperature. A cold-drawing and hot-compression fatigue testing machine for sealing materials is used to test the fatigue performance of sealing materials under cold-drawing and hot-compression cyclic loading conditions. It is mainly used in the research and development, production, and quality inspection of sealing materials. During the production process, it is used to control the quality of sealing material products to ensure that the products meet the performance requirements of actual use.

[0003] However, existing cold-drawing and hot-pressing fatigue testing machines for sealing materials have limitations in material structure. For some irregularly shaped materials, the limited clamping contact area can lead to material loosening, making it difficult to clamp and fix them, which is not conducive to testing. Utility Model Content

[0004] Therefore, the purpose of this utility model is to propose a cold-drawing and hot-pressing fatigue testing machine for sealing materials, so as to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0005] To achieve the above objectives, one embodiment of this utility model provides a cold-drawing and hot-pressing fatigue testing machine for sealing materials, including a supporting testing frame. The testing frame is internally equipped with a main control module for automated control. The main control module is signal-connected to a lifting and fixing seat that applies force to the sealing material. A test support seat for rotational adjustment is fixedly installed at the bottom of the lifting and fixing seat and in the middle of the testing frame. A pressure detection plate for pressure detection is fixedly installed inside the test support seat. A negative pressure component for attracting the material is provided in the middle of the test support seat. A lifting support seat for lifting and adjusting is fixedly installed at the top of the test support seat. An electric heating element for heating the material is fixedly installed inside the lifting support seat. A laser rangefinder sensor for position detection is fixedly installed inside the electric heating element.

[0006] Preferably, as described in any of the above schemes, the top of the test frame is provided with a support frame, and the lifting and fixing seat is fixedly installed in the middle of the top of the support frame. The lifting and fixing seat is driven by a drive cylinder controlled by the main control module.

[0007] The above technical solution is adopted: the test frame serves as the basic structure of the entire test machine, providing stable support for other components. The main control module controls the movement of the drive cylinder, which precisely controls the up and down movement of the lifting and fixing seat. When performing cold drawing and hot pressing tests on the sealing material, the drive cylinder precisely adjusts the position of the lifting and fixing seat according to the instructions of the main control module, thereby applying accurate force to the sealing material and ensuring the accuracy and reliability of the test.

[0008] Preferably, in any of the above embodiments, the test support includes a test motor connected to the main control module, a rotating table, a clamping cylinder connected to the main control module, and a clamping plate for clamping the material. The test motor is fixedly installed inside both the test frame and the drive base. The rotating table is fixedly installed at the output end of the test motor. The clamping cylinder is fixedly installed inside the rotating table. A clamping plate is fixedly installed at one end of the clamping cylinder.

[0009] The above technical solution involves controlling the test motor to drive the rotary table to rotate when the sealing material needs to be subjected to cold drawing or hot pressing tests in different directions. The rotary table can rotate the clamped material to a suitable angle, facilitating the testing of material properties from multiple angles. The clamping cylinder inside the rotary table drives the clamping plate to move, stably clamping sealing materials of different shapes and sizes. For sealing materials with irregular structures, the clamping plate can adjust the clamping position and force according to the material shape to ensure that the material does not loosen during the test. This effectively solves the problem of difficulty in clamping irregularly shaped materials in existing testing machines, improves the applicability of material fixation, and ensures the accuracy of test data.

[0010] Preferably, in any of the above embodiments, the pressure detection board includes a pressure sensor connected to the main control module and a pressure-bearing plate that bears pressure. The pressure sensor is fixedly installed inside the clamping plate, and the pressure-bearing plate is fixedly installed at the detection end of the pressure sensor.

[0011] The above technical solution involves a pressure sensor connected to the main control module, enabling real-time transmission of detected pressure data. The pressure plate at the sensor's detection end directly contacts the sealing material, transmitting the pressure to the sensor. Based on the data from the pressure sensor, the main control module accurately determines the pressure exerted on the material during the test. By monitoring the pressure in real time, the module can adjust test parameters promptly, ensuring the test is conducted under specified pressure conditions. This allows for accurate evaluation of the sealing material's quality and performance, providing reliable data support for the research, development, production, and quality testing of sealing materials.

[0012] Preferably, in any of the above solutions, the negative pressure assembly includes a micro air pump connected to the main control module and a negative pressure chamber for suction. The micro air pump is fixedly installed inside the rotary table, one end of the micro air pump is connected to the negative pressure chamber, the negative pressure chamber is located in the middle of the rotary table, and a sealing rubber ring is provided on one side of the negative pressure chamber to seal it.

[0013] The above technical solution involves a micro air pump that generates negative pressure under the control of the main control module. When the micro air pump is working, a negative pressure environment is formed in the negative pressure chamber. The negative pressure chamber can use the negative pressure adsorption force to tightly adsorb the material onto the rotating platform. The sealing rubber ring set on one side of the negative pressure chamber further enhances the negative pressure adsorption effect, prevents air leakage, ensures the stability of adsorption, greatly improves the fixing ability of various structural sealing materials, avoids the material from affecting the test results due to poor fixing during the test, and ensures the smooth progress of the test and the accuracy of the data.

[0014] Preferably, in any of the above embodiments, the lifting support includes a pneumatic lifting rod connected to the main control module and a lifting movable seat for support. The pneumatic lifting rod is fixedly installed on the top of the rotary table, and the lifting movable seat is fixedly installed on the top of the pneumatic lifting rod.

[0015] The above technical solution involves the main control module controlling the lifting action of the pneumatic lifting rod according to the test requirements. The lifting seat moves up and down accordingly, enabling precise adjustment of the height of the electric heating element installed on it. When conducting hot-press tests on sealing materials, adjusting the height of the electric heating element allows it to maintain a suitable distance from the material surface, ensuring that the material is heated evenly. A suitable heating distance helps control the heating rate and temperature distribution of the material, avoiding the impact of local overheating or undercooling on the test results. This helps ensure the overall temperature uniformity of the material during the test, thereby more accurately simulating the hot-press environment of the sealing material in actual use and improving the reliability and effectiveness of the test.

[0016] Preferably, in any of the above embodiments, the electric heating element includes an electric telescopic rod connected to the main control module and an electric heating plate for heating the material. The electric telescopic rod is fixedly installed inside the lifting seat, and an electric heating plate is fixedly installed at one end of the electric telescopic rod. The laser rangefinder is fixedly installed inside the electric heating plate.

[0017] The above technical solution involves a laser rangefinder sensor detecting the distance between the heating plates in real time and feeding the data back to the main control module. Based on the feedback, the main control module precisely controls the extension and retraction of the electric telescopic rod, ensuring that the heating plates are always in the optimal heating position. During the test, the heating plates heat the center of the sealing material according to the instructions of the main control module. Combined with the adjustment of the height of the lifting support and the fine adjustment of its own position, the material can obtain a uniform and stable heating effect in the cold drawing and hot pressing test, which facilitates accurate testing of the material's performance under different temperature conditions.

[0018] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0019] 1. A rotatable test support is installed inside the testing machine to clamp and fix the test material. A negative pressure component is set at the center of the test support to adsorb the test material under negative pressure. Combined with the clamping of the test support, it is convenient to clamp and fix test materials with various structures, avoiding material loosening caused by limited clamping contact area. It can effectively enhance the stability of the test material fixation and improve the applicability of material fixation, which is beneficial for fixing tests on different materials.

[0020] 2. An adjustable lifting support is installed at the top of the test support to adjust the height of the electric heating element. The electric heating element can heat the middle part of the material, which helps to ensure the uniformity of the overall temperature of the material during the test and facilitates the test.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of the structure according to an embodiment of the present utility model;

[0024] Figure 2 This is a partial structural schematic diagram according to an embodiment of the present utility model;

[0025] Figure 3 This is a cross-sectional structural diagram of the test frame according to an embodiment of the present invention;

[0026] Figure 4 This is a cross-sectional structural diagram of the test support according to an embodiment of the present utility model;

[0027] The components are: 1-test frame, 2-lifting fixed seat, 3-test support seat, 31-test motor, 32-rotating table, 33-clamping cylinder, 34-clamping plate, 4-pressure detection plate, 41-pressure sensor, 42-pressure bearing plate, 5-negative pressure component, 51-miniature air pump, 52-negative pressure chamber, 6-lifting support, 61-pneumatic lifting rod, 62-lifting movable seat, 7-electric heating element, 71-electric telescopic rod, 72-electric heating plate, 8-laser rangefinder sensor. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0029] like Figure 1-4 As shown, the sealing material cold-drawing and hot-pressing fatigue testing machine of this utility model includes a test frame 1 that provides support. The test frame 1 is equipped with a main control module for automatic control. The main control module is signal-connected to a lifting and fixing seat 2 that applies force to the sealing material. A test support seat 3 for rotation adjustment is fixedly installed at the bottom of the lifting and fixing seat 2 and the middle of the test frame 1. A pressure detection plate 4 for pressure detection is fixedly installed inside the test support seat 3. A negative pressure component 5 for attracting the material is provided in the middle of the test support seat 3. A lifting support 6 for lifting and adjusting is fixedly installed at the top of the test support seat 3. An electric heating element 7 for heating the material is fixedly installed inside the lifting support 6. A laser rangefinder sensor 8 for position detection is fixedly installed inside the electric heating element 7.

[0030] Preferably, the test frame 1 is provided with a support frame at its top, and the lifting and fixing seat 2 is fixedly installed at the middle of the top of the support frame. The lifting and fixing seat 2 is driven by a drive cylinder controlled by the main control module.

[0031] The above technical solution is adopted: the test frame 1 serves as the basic structure of the entire test machine, providing stable support for other components. The main control module controls the movement of the drive cylinder, which precisely controls the up and down movement of the lifting and fixing seat 2. When the sealing material is subjected to cold pulling and hot pressing tests, the drive cylinder precisely adjusts the position of the lifting and fixing seat 2 according to the instructions of the main control module, thereby applying accurate force to the sealing material and ensuring the accuracy and reliability of the test.

[0032] Preferably, in any of the above schemes, the test support 3 includes a test motor 31 connected to the main control module, a rotating table 32, a clamping cylinder 33 connected to the main control module, and a clamping plate 34 for clamping the material. The test motor 31 is fixedly installed inside both the test frame 1 and the drive base 22. The rotating table 32 is fixedly installed at the output end of the test motor 31. The clamping cylinder 33 is fixedly installed inside the rotating table 32. The clamping plate 34 is fixedly installed at one end of the clamping cylinder 33.

[0033] The above technical solution is adopted as follows: When it is necessary to conduct cold drawing or hot pressing tests on sealing materials in different directions, the test motor 31 is controlled to drive the rotary table 32 to rotate. The rotary table 32 can rotate the clamped material to a suitable angle, which facilitates the testing of material performance from multiple angles. The clamping cylinder 33 inside the rotary table 32 drives the clamping plate 34 to move, stably clamping sealing materials of different shapes and sizes. For sealing materials with irregular structures, the clamping plate 34 can adjust the clamping position and force according to the material shape to ensure that the material will not loosen during the test. This effectively solves the problem of difficulty in clamping irregular structure materials in existing testing machines, improves the applicability of material fixation, and ensures the accuracy of test data.

[0034] Preferably, in any of the above schemes, the pressure detection plate 4 includes a pressure sensor 41 connected to the main control module signal and a pressure plate 42 that bears pressure. The pressure sensor 41 is fixedly installed inside the clamping plate 34, and the pressure plate 42 is fixedly installed on the detection end of the pressure sensor 41.

[0035] The above technical solution involves a pressure sensor 41 connected to the main control module, enabling it to transmit detected pressure data to the main control module in real time. The pressure plate 42 at the detection end of the pressure sensor 41 directly contacts the sealing material, transmitting the pressure received by the pressure plate 42 to the pressure sensor 41. Based on the data transmitted from the pressure sensor 41, the main control module accurately determines the pressure exerted on the material during the test. By monitoring the pressure in real time, the module can adjust the test parameters promptly to ensure that the test is conducted under the specified pressure conditions. This allows for accurate evaluation of the quality and performance of the sealing material, providing reliable data support for the research, development, production, and quality testing of sealing materials.

[0036] Preferably, the negative pressure assembly 5 includes a micro air pump 51 connected to the main control module and a negative pressure chamber 52 for suction. The micro air pump 51 is fixedly installed inside the rotary table 32. One end of the micro air pump 51 is connected to the negative pressure chamber 52. The negative pressure chamber 52 is located in the middle of the rotary table 32. A sealing ring is provided on one side of the negative pressure chamber 52 to seal it.

[0037] The above technical solution is adopted: the micro air pump 51 can generate negative pressure under the control of the main control module. When the micro air pump 51 works, a negative pressure environment is formed in the negative pressure chamber 52. The negative pressure chamber 52 can use the negative pressure adsorption force to tightly adsorb the material onto the rotating table 32. The sealing rubber ring set on one side of the negative pressure chamber 52 further enhances the negative pressure adsorption effect, prevents air leakage, ensures the stability of adsorption, greatly improves the fixing ability of various structural sealing materials, avoids the material from affecting the test results due to poor fixing during the test, and ensures the smooth progress of the test and the accuracy of the data.

[0038] Preferably, the lifting support 6 includes a pneumatic lifting rod 61 connected to the main control module and a lifting movable seat 62 for support. The pneumatic lifting rod 61 is fixedly installed on the top of the rotary table 32, and the lifting movable seat 62 is fixedly installed on the top of the pneumatic lifting rod 61.

[0039] The above technical solution is adopted: the main control module controls the lifting action of the pneumatic lifting rod 61 according to the test requirements, and the lifting movable seat 62 moves up and down accordingly, which can realize the precise adjustment of the height of the electric heating element 7 installed on it. When conducting hot pressure test on the sealing material, by adjusting the height of the electric heating element 7, it can be kept at a suitable distance from the material surface, ensuring that the material can be heated evenly. The appropriate heating distance helps to control the heating rate and temperature distribution of the material, avoids affecting the test results due to local overheating or undercooling, and helps to ensure the overall temperature uniformity of the material during the test, thereby more accurately simulating the hot pressure environment of the sealing material in actual use and improving the reliability and effectiveness of the test.

[0040] Preferably, in any of the above embodiments, the electric heating element 7 includes an electric telescopic rod 71 connected to the main control module and an electric heating plate 72 for heating the material. The electric telescopic rod 71 is fixedly installed inside the lifting seat 62, and the electric heating plate 72 is fixedly installed at one end of the electric telescopic rod 71. The laser rangefinder 8 is fixedly installed inside the electric heating plate 72.

[0041] The above technical solution involves the laser rangefinder 8 detecting the distance between the heating plates 72 in real time and feeding the data back to the main control module. Based on the feedback information, the main control module precisely controls the extension and retraction of the electric telescopic rod 71, thereby ensuring that the heating plates 72 are always in the optimal heating position. During the test, the heating plates 72 heat the middle part of the sealing material according to the instructions of the main control module. Combined with the adjustment of its height by the lifting support 6 and the fine adjustment of its own position, the material can obtain a uniform and stable heating effect in the cold drawing and hot pressing test, which facilitates the accurate testing of the material's performance under different temperature conditions.

[0042] The working principle of this invention, the cold-drawing and hot-pressing fatigue testing machine for sealing materials, is as follows:

[0043] During the test, the sealing material is first placed on the rotating table 32. The main control module controls the clamping cylinder 33 to clamp the material with the clamping plate 34. At the same time, the micro air pump 51 works, and the negative pressure chamber 52 generates negative pressure to adsorb the material, ensuring a firm fixation. The main control module controls the drive cylinder to lower the lifting fixed seat 2 to apply pressure to the material. The pressure sensor 41 monitors in real time and transmits the data to the main control module. If a hot pressing test is required, the main control module controls the pneumatic lifting rod 61 to adjust the height of the lifting movable seat 62 so that the electric heating plate 7 is close to the material. The electric telescopic rod 71 finely adjusts the position of the electric heating plate 72. The laser range sensor 8 assists in ensuring the distance is appropriate, and then the middle of the material is heated.

[0044] Compared with the prior art, the present invention has the following advantages:

[0045] 1. A rotatable test support 3 is set inside the testing machine to clamp and fix the test material. A negative pressure component 5 is set at the center of the test support 3 to adsorb the test material under negative pressure. Combined with the clamping of the test support 3, it is convenient to clamp and fix test materials with various structures, avoiding material loosening caused by limited clamping contact area. It can effectively enhance the stability of the test material fixation and improve the applicability of material fixation, which is beneficial for fixing tests on different materials.

[0046] 2. An adjustable lifting support 6 is installed at the top of the test support 3 to adjust the height of the electric heating element 7. The electric heating element 7 can heat the middle part of the material, which helps to ensure the overall temperature uniformity of the material during the test and facilitates the test.

Claims

1. A sealing material cold-drawing hot-pressing fatigue testing machine, comprising a testing machine frame (1) for providing support, an inner portion of the testing machine frame (1) is provided with a main control module for being automatically controlled, the main control module is signal connected with a lifting fixing seat (2) for applying force to the sealing material, characterized in that: The bottom of the lifting fixing seat (2) and the middle part of the test rack (1) are fixedly installed with a test support seat (3) for rotation adjustment, the inside of the test support seat (3) is fixedly installed with a pressure detection plate (4) for pressure detection, the middle part of the test support seat (3) is provided with a negative pressure assembly (5) for suction of materials, the top end of the test support seat (3) is fixedly installed with a lifting support (6) for lifting adjustment, the inside of the lifting support (6) is fixedly installed with an electric heating sheet (7) for heating of materials, and the inside of the electric heating sheet (7) is fixedly installed with a laser ranging sensor (8) for position detection.

2. The seal material cold pull thermal fatigue tester of claim 1, wherein: The top end of the test rack (1) is provided with a support frame for support, and the lifting fixing seat (2) is fixedly installed at the middle part of the top end of the support frame, and is driven by a drive cylinder controlled by a main control module.

3. The seal material cold pull thermal fatigue tester of claim 2, wherein: The test support seat (3) comprises a test motor (31) connected with a signal of the main control module, a rotating table (32) for rotation, a clamping cylinder (33) connected with a signal of the main control module, and a clamping plate (34) for clamping of materials, the inside of the test rack (1) and the drive seat (22) are both fixedly installed with the test motor (31), the output end of the test motor (31) is fixedly installed with the rotating table (32), the inside of the rotating table (32) is fixedly installed with the clamping cylinder (33), and one end of the clamping cylinder (33) is fixedly installed with the clamping plate (34).

4. The seal material cold pull thermal fatigue tester of claim 3, wherein: The pressure detection plate (4) comprises a pressure sensor (41) connected with a signal of the main control module and a pressure bearing plate (42) for pressure bearing, the inside of the clamping plate (34) is fixedly installed with the pressure sensor (41), and the detection end of the pressure sensor (41) is fixedly installed with the pressure bearing plate (42).

5. The seal material cold pull thermal fatigue tester of claim 4, wherein: The negative pressure assembly (5) comprises a micro air pump (51) connected with a signal of the main control module and a negative pressure cavity (52) for suction, the inside of the rotating table (32) is fixedly installed with the micro air pump (51), one end of the micro air pump (51) is communicated with the negative pressure cavity (52), the negative pressure cavity (52) is arranged at the middle part of the rotating table (32), and one side of the negative pressure cavity (52) is provided with a sealing rubber ring for sealing.

6. The seal material cold pull thermal fatigue tester of claim 5, wherein: The lifting support (6) comprises a pneumatic lifting rod (61) connected with a signal of the main control module and a lifting movable seat (62) for support, the top end of the rotating table (32) is fixedly installed with the pneumatic lifting rod (61), and the top end of the pneumatic lifting rod (61) is fixedly installed with the lifting movable seat (62).

7. The seal material cold pull thermal fatigue tester of claim 6, wherein: The electric heating sheet (7) comprises an electric telescopic rod (71) connected with a signal of the main control module and an electric heating plate (72) for heating of materials, the inside of the lifting movable seat (62) is fixedly installed with the electric telescopic rod (71), one end of the electric telescopic rod (71) is fixedly installed with the electric heating plate (72), and the inside of the electric heating plate (72) is fixedly installed with the laser ranging sensor (8).

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