Isostatic pressing graphite surface compression resistance detection device

Abstract

The utility model discloses an isostatic pressing graphite surface compression resistance detection device, which comprises a base, a fixed plate, a lifting plate, a pressure sensor, a roller, a pressure head and a turning plate, the base is provided with a carrier and supports positioned on the two sides of the carrier, the fixed plate is horizontally arranged at the tops of the supports on the two sides, and the lifting plate is arranged on the fixed plate. The lifting plate is arranged below the fixing plate in a lifting mode, the turnover plate is arranged below the lifting plate in a turnover mode, a first lifting driving device pointing to the lower portion is vertically arranged on the turnover plate, the pressure sensor is arranged at the bottom of the first lifting driving device, and the pressing head is arranged at the bottom of the pressure sensor. The rollers are arranged at the bottom of the turning plate and located on the two sides of the pressing head. The isostatic pressing graphite surface compression resistance detection device can ensure that the bottom surface of the pressure head is parallel to the top surface of an isostatic pressing graphite product, the compression resistance of the top surface of the isostatic pressing graphite product is detected, and the adaptability to the gradient of the top surface is improved.

Description

Technical Field

[0001] This utility model relates to the field of isostatic graphite testing equipment, and in particular to an isostatic graphite surface compressive strength testing device. Background Technology

[0002] In the production process of isostatically pressed graphite products, it is necessary to test the compressive strength of its surface to ensure the quality of the isostatically pressed graphite. To improve work efficiency, the usual practice for testing the compressive strength of isostatically pressed graphite surface is to apply a certain pressure to the surface of the isostatically pressed graphite product using an indenter, and then observe whether the surface of the isostatically pressed graphite product is damaged. If there is no damage, it is considered qualified.

[0003] To ensure testing accuracy, the indenter must be parallel to the top surface of the isostatic graphite product. Due to cutting issues or design requirements, some isostatic graphite products have a sloping top with a certain gradient. However, the indenters of existing compressive strength testing equipment are vertical, and cannot be parallel to the sloping top surface of the isostatic graphite product during descent. This makes it impossible to accurately test the compressive strength of the top surface of some isostatic graphite products, and improvements are needed. Utility Model Content

[0004] The purpose of this invention is to provide a surface compressive strength testing device for isostatic graphite, which tests the compressive strength of the top surface of isostatic graphite products and improves the adaptability to the top surface slope.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A device for testing the compressive strength of isostatic graphite surfaces includes: a base, a fixed plate, a lifting plate, a pressure sensor, rollers, a pressure head, and a flip plate. The base is equipped with a carrier and supports located on both sides of the carrier. The fixed plate is horizontally positioned on top of the supports on both sides. The lifting plate is vertically positioned below the fixed plate. The flip plate is flipped vertically below the lifting plate. A first downward-pointing lifting drive device is vertically positioned on the flip plate. The pressure sensor is located at the bottom of the first lifting drive device. The pressure head is located at the bottom of the pressure sensor. The rollers are located at the bottom of the flip plate and on both sides of the pressure head.

[0007] The fixed plate is equipped with a second lifting drive device that is connected to the lifting plate.

[0008] The first and second lifting drive devices are hydraulic cylinders.

[0009] The lifting plate has a first pin seat and a vertical rod spaced apart on the left and right sides at its bottom. The flip plate has a second pin seat that is rotatably connected to the bottom of the vertical rod. A first swing arm pointing downwards is movably mounted in the first pin seat. The flip plate has a third pin seat located below the first pin seat. A second swing arm pointing upwards is mounted on the third pin seat. A connecting plate is located at the bottom of the first swing arm. A first screw rod passing through the connecting plate upwards is mounted on the third pin seat. First nuts located above and below the connecting plate are mounted on the first screw rod.

[0010] The bracket has a vertically arranged slide rail on its inner side, and the lifting plate has a slider located on the slide rail at its end.

[0011] The vehicle is provided with a first baffle and a second baffle spaced apart on the left and right sides. A second screw rod is horizontally arranged on the outer side of the first baffle, penetrating the corresponding side bracket. A second nut is provided on the second screw rod located on both sides of the corresponding bracket.

[0012] Among them, a cylinder connected to the second baffle is horizontally arranged on the bracket corresponding to the outer side of the second baffle.

[0013] The beneficial effects of this utility model are as follows: An isostatic graphite surface compressive strength testing device adjusts the angle of the flip plate so that after the flip plate descends with the lifting plate, the rollers on both sides of the pressure head can contact the top surface of the isostatic graphite product, ensuring that the bottom surface of the pressure head is parallel to the top surface of the isostatic graphite product. Then, the pressure head, driven by the first lifting drive device, tests the compressive strength of the top surface of the isostatic graphite product, improving the adaptability to the top surface slope, ensuring the accuracy of the test, and simplifying the operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 yes Figure 1 A schematic diagram of the structure after the flap angle is adjusted. Detailed Implementation

[0016] The following is combined with Figures 1 to 2 The technical solution of this utility model will be further illustrated through specific embodiments.

[0017] like Figure 1 The isostatic graphite surface compressive strength testing device shown includes: a base 1, a fixed plate 3, a lifting plate 5, a pressure sensor 13, a roller 17, a pressure head 15, and a flip plate 10. The base 1 is equipped with a carrier 12 and brackets 2 located on both sides of the carrier 12. The isostatic graphite product 14 is placed on the carrier 12 for top surface compressive strength testing.

[0018] like Figure 2As shown, the carrier 12 is provided with a first baffle 11 and a second baffle 16 spaced apart on the left and right. A second screw 25 is horizontally arranged on the outer side of the first baffle 11, penetrating the corresponding side bracket 2. A second nut 24 is provided on the second screw 25 located on both sides of the corresponding bracket 2 to adjust and fix the first baffle 11 left and right, thereby improving the adaptability to different widths of isostatic graphite products 14.

[0019] A cylinder 18 connected to the second baffle 16 is horizontally arranged on the bracket 2 corresponding to the outer side of the second baffle 16 to drive the second baffle 16 to move laterally. In cooperation with the first baffle 11, it can clamp and fix the isostatic graphite product 14 and improve the positional stability during the testing process.

[0020] The fixing plate 3 is horizontally positioned on top of the two side supports 2 and can be fixed with bolts, resulting in a stable structure. The lifting plate 5 is vertically and flexibly positioned below the fixing plate 3. In this embodiment, the fixing plate 3 is equipped with a second lifting drive device 4 connected to the lifting plate 5 for adjusting the lifting height of the lifting plate 5.

[0021] like Figure 2 As shown, a slide rail 27 is vertically arranged on the inner side of the bracket 2, and a slider 26 located on the slide rail 27 is provided at the end of the lifting plate 5. The lifting plate 5 is guided to rise and fall by the cooperation of the slide rail 27 and the slider 26 to ensure stability.

[0022] The flip plate 10 is rotatably set below the lifting plate 5. In order to realize the flip plate 10 flip adjustment, in this embodiment, the bottom of the lifting plate 5 is provided with a first pin seat 6 and a vertical rod 21 spaced apart on the left and right. The flip plate 10 is provided with a second pin seat 19 rotatably connected to the bottom of the vertical rod 21, so that the flip plate 10 can be flipped around the pin in the second pin seat 19.

[0023] A downward-pointing first swing arm 7 is movably disposed in the first pin seat 6, such as... Figure 2 As shown, the flap 10 is provided with a third pin seat 28 located below the first pin seat 6, and the third pin seat 28 is provided with a second swing arm 9 pointing upward. By changing the distance between the first swing arm 7 and the second swing arm 9, the angle of the flap 10 can be adjusted.

[0024] A connecting plate 23 is provided at the bottom of the first swing arm 7. A first screw 8 is provided on the third pin seat 28, which passes through the connecting plate 23 upward. A first nut 22 is provided on the first screw 8, located above and below the connecting plate 23. By rotating the first nut 22, the distance between the first swing arm 7 and the second swing arm 9 is changed, which is easy to operate.

[0025] A first lifting drive device 20 pointing downwards is vertically arranged on the flip plate 10. A pressure sensor 13 is located at the bottom of the first lifting drive device 20, and a pressure head 15 is located at the bottom of the pressure sensor 13. The lifting and lowering of the pressure sensor 13 and the pressure head 15 are adjusted by the first lifting drive device 20. In this embodiment, the first lifting drive device 20 and the second lifting drive device 4 are hydraulic cylinders, and lifting and lowering can be controlled by a solenoid valve, making operation simple. Furthermore, the pressure sensor 13 can be connected to an external PLC controller, and the pressure can be displayed on the PLC controller's display screen.

[0026] The rollers 17 are positioned at the bottom of the flip plate 10 and on both sides of the pressure head 15. Based on the slope of the top surface of the isostatically pressed graphite product 14, the angle of the flip plate 10 is adjusted before testing so that after the flip plate 10 descends with the lifting plate 5, the rollers 17 on both sides of the pressure head 15 can contact the top surface of the isostatically pressed graphite product. Figure 2 As shown, the bottom surface of the pressure head 15 is parallel to the top surface of the isostatic graphite product 14. Then, the pressure head 15 is driven by the first lifting drive device to test the compressive strength of the top surface of the isostatic graphite product 14, which improves the adaptability to the top surface slope and ensures the accuracy of the test.

[0027] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A device for testing the compressive strength of isostatically pressed graphite surfaces, characterized in that, include: The system comprises a base, a fixed plate, a lifting plate, a pressure sensor, rollers, a pressure head, and a flip plate. The base is equipped with a carrier and supports located on both sides of the carrier. The fixed plate is horizontally positioned on top of the supports on both sides. The lifting plate is vertically positioned below the fixed plate. The flip plate is flipped upside down below the lifting plate. A first lifting drive device pointing downwards is vertically positioned on the flip plate. The pressure sensor is located at the bottom of the first lifting drive device. The pressure head is located at the bottom of the pressure sensor. The rollers are located at the bottom of the flip plate and on both sides of the pressure head.

2. The isostatic graphite surface compressive strength testing device according to claim 1, characterized in that, The fixed plate is equipped with a second lifting drive device that is connected to the lifting plate.

3. The isostatic graphite surface compressive strength testing device according to claim 2, characterized in that, The first and second lifting drive devices are hydraulic cylinders.

4. The isostatic graphite surface compressive strength testing device according to claim 1, characterized in that, The bottom of the lifting plate is provided with a first pin seat and a vertical rod spaced apart on the left and right. The flip plate is provided with a second pin seat that is rotatably connected to the bottom of the vertical rod. A first swing arm pointing downward is movably disposed in the first pin seat. The flip plate is provided with a third pin seat located below the first pin seat. A second swing arm pointing upward is disposed on the third pin seat. A connecting plate is provided at the bottom of the first swing arm. A first screw rod passing through the connecting plate upward is disposed on the third pin seat. A first nut located above and below the connecting plate is disposed on the first screw rod.

5. The isostatic graphite surface compressive strength testing device according to claim 1, characterized in that, The bracket is vertically provided with a slide rail on its inner side, and the lifting plate is provided with a slider located on the slide rail at its end.

6. The isostatic graphite surface compressive strength testing device according to claim 1, characterized in that, The vehicle is provided with a first baffle and a second baffle spaced apart on the left and right sides. A second screw rod is horizontally arranged on the outer side of the first baffle, penetrating the corresponding side bracket. A second nut is provided on the second screw rod located on both sides of the corresponding bracket.

7. The isostatic graphite surface compressive strength testing device according to claim 6, characterized in that, A cylinder connected to the second baffle is horizontally mounted on the bracket corresponding to the outer side of the second baffle.

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