Heating and pressure maintaining test tool and test equipment

Abstract

The utility model provides a heating and pressure maintaining test tool and test equipment, and the heating and pressure maintaining test tool comprises a test seat which is provided with a clamp and is used for fixing a tested object; the displacement table is arranged above the testing seat and can move up and down relative to the testing seat through a driving group, and the driving group is arranged on a mounting frame body; the pressure group is arranged on the displacement table and is used for being in contact with a measured object and applying pressure; and the heating group is arranged on the displacement table, works independently from the pressure group, and is used for providing a local high-temperature environment for the measured object. According to the heating and pressure maintaining test tool and the test equipment provided by the embodiment of the utility model, temperature and pressure parameters can be accurately controlled, the accuracy and the reliability of test results are ensured, the heating and pressure maintaining test tool and the test equipment are suitable for performance tests of various materials and products, have a wide application range, can simplify the test process and improve the working efficiency, and are suitable for popularization and application. The structural design is simple, the manufacturing cost is low, and the safety is good.

Description

Technical Field

[0001] This utility model relates to the field of product performance testing technology, specifically, it demonstrates a heating and pressure holding test fixture and testing equipment. Background Technology

[0002] A heat-holding pressure test fixture is a device component or system specifically designed for performing heat-holding pressure tests. It plays an important role in many industrial fields, especially in test scenarios that require simulating high-temperature and high-pressure environments.

[0003] Hot pressure testing fixtures are mainly used to perform performance tests on materials, components, or products under specific temperatures and pressures. By simulating extreme environments, they can evaluate the stability, durability, and performance of the tested object under high temperature and pressure. These testing fixtures are widely used in industries such as automotive, aerospace, electronics, and chemicals, and are crucial for ensuring product quality and reliability.

[0004] Currently, conventional testing fixtures mostly use the elbow clamp method to hold pressure when performing pressure tests on workpieces. Because the pressure holding value of the elbow clamp pressure holding structure is too large, it is difficult to control accurately, and the operation is time-consuming and labor-intensive. In addition, conventional testing fixtures do not have a heating function and cannot simulate the environment of high-temperature operation. Utility Model Content

[0005] This utility model aims to at least partially solve one of the technical problems in related technologies. Therefore, the purpose of this utility model is to provide a split-type heating and pressure-holding fixture and pressure-holding device.

[0006] To achieve the above objectives, on the one hand, the heating and pressure holding test fixture according to the embodiments of this utility model can simulate a high-temperature and high-pressure test environment. The heating and pressure holding test fixture includes:

[0007] A test stand with clamps on it for fixing the object to be tested;

[0008] The displacement stage is located above the test base and can be moved up and down relative to the test base by means of a drive assembly, which is mounted on a mounting frame.

[0009] The pressure unit, located on the displacement stage, is used to contact the object being measured and apply pressure.

[0010] The heating unit, located on the displacement stage and operating independently of the pressure unit, is used to provide a local high-temperature environment for the object being measured.

[0011] According to the heating and pressure holding test fixture provided in this utility model embodiment, on the one hand, the test object is stably placed on the test seat, and the pressure group and heating group on the displacement stage are controlled by the drive group to approach the test object downward together. The pressure group is used to contact the test object and apply the required pressure value. The pressure sensor is used to accurately adjust and maintain the pressure level in the test area. The heating group is used to provide the high temperature environment required for the test of the test object. The temperature sensor is used to ensure that the temperature in the test area reaches and is maintained near the preset value.

[0012] In addition, the split-type heating and pressure-holding fixture table according to the above embodiments of this utility model may also have the following additional technical features:

[0013] According to one embodiment of the present invention, the pressure assembly includes:

[0014] A shaft, the upper part of which is movably inserted into the displacement platform;

[0015] The pressure block is connected to the lower end of the shaft, and a pressure sensor is embedded in the bottom of the pressure block.

[0016] An adjusting spring is sleeved on the lower part of the shaft and clamped between the displacement table and the pressure block.

[0017] According to one embodiment of the present invention, the heating assembly includes:

[0018] A heating block is disposed on the displacement stage, and an electric heating element and a temperature sensor are disposed on the heating block;

[0019] A conductive block is located at the bottom end of the heating block;

[0020] Heating rod, which is located at the bottom of the conductive block.

[0021] A ceramic heat insulation component is provided between the heating block and the displacement stage.

[0022] According to one embodiment of the present invention, the top surface of the test seat is provided with a contour groove for placing the object to be tested.

[0023] The fixture includes at least three adjusting clamps arranged in a ring around the contour groove, and the forces exerted by the three adjusting clamps on the object being measured are in the same direction.

[0024] Furthermore, the adjusting clamp includes a moving part and a pushing part. The bottom end of the moving part protrudes to provide a sliding body, and a sliding groove is formed on the surface of the test seat to allow the sliding body to slide. A spring member connected to one end of the sliding body is provided in the sliding groove. The moving part also has a waist hole, and a limiting rod is provided on the surface of the test seat that is located in the waist hole.

[0025] According to one embodiment of the present invention, the drive assembly includes a drive cylinder and several guide columns. The drive cylinder is mounted on the mounting frame and its end is connected downward to the displacement stage. The upper part of the guide column is movably mounted on the mounting frame through a bushing, and the lower end of the guide column is connected to the displacement stage. The upper ends of adjacent guide columns are connected to a synchronization plate.

[0026] The synchronization plate is equipped with a blocking post, the bottom end of which can contact the top surface of the mounting frame to limit the minimum displacement of the displacement platform.

[0027] On the other hand, the testing equipment according to an embodiment of the present invention includes:

[0028] The main body of the control unit is mounted on a movable frame;

[0029] At least one heating and pressure holding test fixture as described above shall be provided on the top of the main body of the control chassis;

[0030] The test stand is mounted on the top of the control chassis body via a linear module that slides longitudinally.

[0031] The technical solutions provided by the embodiments of this disclosure have the following beneficial effects: This heating and pressure holding test fixture can accurately control temperature and pressure parameters, ensuring the accuracy and reliability of test results, and is suitable for performance testing of various materials and products, with a wide range of applications; This heating and pressure holding test fixture and test equipment can simplify the test process and improve work efficiency, with simple structural design, low manufacturing cost, and good safety. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of a heating and pressure holding test fixture according to an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the test seat portion of an embodiment of the present invention;

[0034] Figure 3 This is a partial schematic diagram of the clamp portion on the test stand according to an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the pressure assembly and heating assembly according to an embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the drive assembly according to an embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the structure of a testing device according to another embodiment of the present invention;

[0038] The following are the relevant markings in the attached diagram: 1-Test seat, 2-Displacement stage, 3-Drive group, 4-Mounting frame, 5-Pressure group, 6-Heating group, 7-Control box body, 8-Moving frame, 9-Linear module; 11-Shaping groove, 12-Adjusting clamp, 121-Moving part, 122-Pushing part, 123-Sliding body, 13-Slide groove, 131-Spring component, 1211-Waist hole, 14-Limit rod, 31-Drive cylinder, 32-Guide column, 33-Busset, 34-Synchronization plate, 35-Blocking column, 51-Shaft, 52-Pressure block, 53-Pressure sensor, 54-Adjusting spring, 61-Heating block, 62-Electric heating element, 63-Temperature sensor, 64-Conduction block, 65-Heating rod, 66-Ceramic heat insulation component. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] The heating and pressure holding test fixture and test equipment of this utility model embodiment are described in detail below with reference to the accompanying drawings.

[0041] Reference Figures 1 to 5 As shown, the heating and pressure holding test fixture provided according to the embodiment of this utility model includes a test seat 1, a displacement stage 2, a pressure group 5, and a heating group 6.

[0042] Specifically, the top surface of the test stand 1 is provided with a contour groove 11 for placing the object under test. The contour groove 11 is not very deep, that is, the object under test can be placed on the contour groove 11 of the test stand 1. The top surface of the test stand 1 is also provided with a clamp, which is close to the contour groove 11 and is used to fix the object under test on the contour groove 11 to ensure that the object under test maintains the correct position and posture during the test.

[0043] The displacement stage 2 is designed above the test base 1 and is in a horizontal position. The displacement stage 2 can be adjusted up and down relative to the test base 1 through the action of a drive group 3. The drive group 3 is set on a mounting frame 4 and is also located above the test base 1.

[0044] Pressure group 5 and heating group 6 are both installed at the bottom of displacement stage 2. Pressure group 5 and heating group 6 are arranged side by side at intervals and work independently. The displacement stage 2 drives pressure group 5 and heating group 6 downward to approach the object to be tested on test seat 1. The pressure group is used to contact the object to be tested and apply a certain pressure, while the heating group is used to provide a local high temperature environment for the object to be tested.

[0045] Specifically, the pressure assembly 5 includes a shaft 51, a pressure block 52, and an adjusting spring 54. The shaft 51 is installed vertically. The upper part of the shaft 51 is movably inserted into the displacement stage 2 via a sliding bushing, meaning that the shaft 51 can slide up and down relative to the displacement stage 2 under external force. The pressure block 52 is installed at the bottom end of the shaft 51. The pressure block 52 is used to contact the object under test and apply pressure to it. Therefore, the bottom surface of the pressure block 52 must have a certain degree of flatness. In one embodiment, the pressure block is designed as a flat cylindrical shape, but it can also be designed in other shapes. In order to better and more accurately monitor the pressure parameters during the test, a pressure sensor 53 is embedded in the middle of the bottom of the pressure block 52. For example, a miniature pressure sensor of model JTW-H02 is embedded in the pressure block. During the process of the pressure block contacting the object under test and applying pressure, the pressure sensor can monitor the pressure change between the pressure block and the object under test in real time, thereby accurately adjusting and maintaining the pressure level in the corresponding test area on the object under test, and achieving the predetermined high-pressure test requirements.

[0046] Accordingly, the heating assembly 6 includes a heating block 61, a conductive block 64, and a heating rod 65. The heating block 61 is installed at the bottom of the displacement stage 2. The heating block is made of metal, such as iron. An electric heating element 62 is embedded in the heating block 61. When the electric heating element 62 is energized, it generates heat in the heating block 61. To prevent the high temperature of the heating block from affecting the structural strength of the displacement stage, a ceramic heat insulation element 66 can be added between the heating block 61 and the displacement stage 2 to insulate the heating block 61 and prevent heat transfer to the displacement stage. In order to better and more accurately monitor the temperature of the heating block during the test, a heating element 65 is provided on the side wall of the heating block 61. A temperature sensor 63, such as a thermistor temperature sensor of model WG22701 or WG22703, is installed. A conductive block 64 is installed at the bottom of the heating block 61. The conductive block is made of a thermally conductive metal material, such as copper. A heating rod 65 is installed at the bottom of the conductive block 64 and is in a vertical position. The heating rod is also made of metal, such as copper. In this way, the heat generated by the heating block is transferred to the heating rod through the conductive block. The heating rod indirectly heats the ambient temperature of the local test area on the object being tested by thermal radiation.

[0047] During the test: First, the object under test is placed stably on the test stand. The pressure group and heating group on the displacement stage are controlled by the drive group to move downwards towards the object under test. The pressure group is used to contact the object under test and apply the required pressure value. The pressure sensor is used to accurately adjust and maintain the pressure level in the test area. The heating group is used to provide the high-temperature environment required for the test of the object under test. The temperature sensor is used to ensure that the temperature in the test area reaches and is maintained near the preset value.

[0048] In one embodiment of the present invention, the fixture includes at least three adjusting clamps 12 arranged in a ring around the contour groove 11. The three adjusting clamps 12 exert the same force on the object to be measured in the same direction. That is, the object to be measured is restricted in the contour groove 11 from one side by the pushing action of the three adjusting clamps 12.

[0049] The adjusting clamp 12 is movably mounted on the test base 1 and provides a flexible pushing effect. The adjusting clamp 12 includes a moving part 121 and a pushing part 122. The pushing part 122 is located on the upper side of the moving part 121 and extends outward. A slider 123 protrudes downward from the center of the bottom end of the moving part 121, and a groove 13 is formed on the surface of the test base 1 to allow the slider 123 to slide. A spring 131 connected to one end of the slider 123 is provided in the groove 13. During the test, the spring 131 remains compressed. The sliding body 123 pushes towards the object being tested, and the pushing effect on the object being tested is achieved by the protruding pushing part 122; a waist hole 1211 is also provided in the moving part 121, and a limiting rod 14 is provided on the surface of the test seat 1, which is always in the waist hole 1211. The limiting rod 14 is fixed and its top end cannot be disengaged from the waist hole 1211, while the waist hole 1211 can move laterally relative to the limiting rod 14. The cooperation between the waist hole 1211 and the limiting rod 14 ensures that the adjusting clamp 12 can be stably moved and set on the test seat 1.

[0050] In one embodiment of this utility model, the drive group 3 includes a drive cylinder 31 and at least four guide columns 32. The drive cylinder 31 is mounted on the mounting frame 4 and its end is connected downward to the displacement stage 2. The upper part of the guide column 32 is movably mounted on the mounting frame 4 through a bushing 33, and the lower end of the guide column 32 is connected to the displacement stage 2. The upper ends of adjacent guide columns 32 are connected to a synchronous plate 34. The drive cylinder 31 realizes the lifting and lowering action of the displacement stage 2, and the guide column 32 can ensure the smooth movement of the displacement stage 2 during the lifting and lowering process, thereby ensuring the stable operation of the pressure group and heating group on the displacement stage.

[0051] Furthermore, a blocking post 35 is provided on the synchronization plate 34. The bottom end of the blocking post 35 can contact the top surface of the mounting frame 4 to limit the minimum displacement of the displacement stage 2 and prevent the pressure group from being too high and damaging the structural performance of the object being tested.

[0052] Reference Figure 6As shown, according to another embodiment of the present invention, the testing equipment includes a control chassis body 7 and two aforementioned heating and pressure holding test fixtures disposed on the top of the control chassis body 7. Of course, there can be more than two heating and pressure holding test fixtures. In this embodiment, the two heating and pressure holding test fixtures operate independently to improve testing efficiency. The control chassis body 7 is mounted on a movable frame 8, which elevates the testing equipment for easier operation by technicians and facilitates its movement. Furthermore, the test seat 1 of the heating and pressure holding test fixture is slidably disposed longitudinally on the top of the control chassis body 7 via a linear module 9. This means the linear module 9 can drive the test seat 1 to move accurately below the displacement stage 2 or remove the test seat 1 from below the displacement stage 2, facilitating the placement and removal of the test object from the test seat. The control chassis body can be equipped with an automated control system, which simplifies the testing process, improves work efficiency, and increases the degree of automation, thus having broad application prospects.

[0053] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A heating and pressure holding test fixture, characterized in that, include: Test stand (1), on which a clamp is provided for fixing the object to be tested; The displacement stage (2) is located above the test base (1) and can be moved up and down relative to the test base (1) by the drive group (3). The drive group (3) is located on a mounting frame (4). Pressure group (5), located on displacement stage (2), is used to contact the object being measured and apply pressure; The heating group (6) is located on the displacement stage (2) and works independently of the pressure group (5) to provide a local high-temperature environment for the object being measured.

2. The heating and pressure holding test fixture according to claim 1, characterized in that, The pressure assembly (5) includes: The upper part of the shaft (51) is movably inserted into the displacement stage (2); Pressure block (52) is connected to the lower end of shaft (51), and pressure sensor (53) is embedded in the bottom of pressure block (52). Adjusting spring (54) is sleeved on the lower part of shaft (51) and clamped between displacement table (2) and pressure block (52).

3. The heating and pressure holding test fixture according to claim 1, characterized in that, The heating assembly (6) includes: A heating block (61) is provided on the displacement stage (2), and an electric heating element (62) and a temperature sensor (63) are provided on the heating block (61). Conducting block (64), which is located at the bottom end of heating block (61); Heating rod (65) is located at the bottom of conductive block (64).

4. The heating and pressure holding test fixture according to claim 3, characterized in that, A ceramic heat insulation component (66) is provided between the heating block (61) and the displacement stage (2).

5. The heating and pressure holding test fixture according to claim 1, characterized in that, The top surface of the test stand (1) is provided with a contour groove (11) for placing the object to be tested.

6. The heating and pressure holding test fixture according to claim 5, characterized in that, The fixture includes at least three adjusting clamps (12) arranged in a ring around the contour groove (11), and the forces exerted by the three adjusting clamps (12) on the object being measured are in the same direction.

7. The heating and pressure holding test fixture according to claim 6, characterized in that, The adjusting clamp (12) includes a moving part (121) and a pushing part (122). The bottom end of the moving part (121) is provided with a sliding body (123), and a sliding groove (13) is provided on the surface of the test seat (1) for the sliding body (123) to slide. A spring (131) connected to one end of the sliding body (123) is provided in the sliding groove (13). A waist hole (1211) is also provided in the moving part (121), and a limiting rod (14) is provided on the surface of the test seat (1) in the waist hole (1211).

8. The heating and pressure holding test fixture according to claim 1, characterized in that, The drive assembly (3) includes a drive cylinder (31) and several guide columns (32). The drive cylinder (31) is mounted on the mounting frame (4) and its end is connected downward to the displacement stage (2). The upper part of the guide column (32) is movably mounted on the mounting frame (4) through a bushing (33). The lower end of the guide column (32) is connected to the displacement stage (2). The upper ends of adjacent guide columns (32) are connected to a synchronization plate (34).

9. The heating and pressure holding test fixture according to claim 8, characterized in that, The synchronization plate (34) is provided with a blocking post (35), the bottom end of which can contact the top surface of the mounting frame (4) to limit the minimum displacement of the displacement platform (2).

10. A testing device, characterized in that, include: The main body of the control unit (7) is mounted on a movable frame (8); At least one heating and pressure holding test fixture as described in any one of claims 1 to 9 is provided on the top of the main body of the control chassis (7); The test seat (1) is mounted on the top of the control box body (7) by sliding longitudinally via a linear module (9).

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