Graphite product slice thickness detection device and detection method thereof

Abstract

The invention is suitable for the technical field of slice detection equipment, and provides a graphite product slice thickness detection device and a detection method thereof.The graphite product slice thickness detection device comprises a detection platform, the top of the detection platform is provided with a placement seat with a detection area, and the side wall of the placement seat is provided with an air inlet and an air outlet; a temperature control piece for controlling the temperature of the detection area is embedded in the side wall of the placement seat; the pressing frame is arranged at the top of the detection platform, the bottom of the pressing frame corresponds to the placement seat, a control part is slidably connected to the interior of the pressing frame, the control part is matched with the inner wall of the detection area to seal the detection area, and the control part slides in the detection area to control opening and closing of the air inlet and the air outlet. By arranging the novel thickness detection device, it is ensured that graphite product slices of any size and thickness can be subjected to thickness detection, meanwhile, contact with the slices is avoided, damage to the slices is reduced, and the slices are protected.

Description

Technical Field

[0001] The invention relates to the technical field of slice detection equipment, and in particular to a graphite product slice thickness detection device and a detection method thereof. Background Art

[0002] The physical properties of graphite slices are inherently brittle and relatively low in toughness, and they are prone to cracking or breaking when subjected to mechanical stress or thermal shock. The density and hardness of graphite are relatively low, and although its softness makes it easy to process, it may not perform well in certain applications that require high hardness and high wear resistance.

[0003] The existing thickness test of graphite product slices mostly uses contact thickness gauges, such as micrometers. However, contact gauges may damage graphite slices, especially graphite is brittle and easy to break;

[0004] In the prior art, due to the characteristics of graphite slices, traditional methods may be difficult to measure accurately and easily damage the graphite slices. In order to accurately measure the thickness of graphite slices, high-precision measuring instruments are required, but the cost of such instruments is high, which affects the detection cost of graphite slices.

[0005] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the invention

[0006] In view of the above-mentioned defects, the purpose of the present invention is to provide a graphite product slice thickness detection device, which can ensure that the thickness of graphite product slices of any size and thickness can be detected by setting up a new type of thickness detection device, while avoiding contact with the slices, reducing damage to the slices, and protecting the slices.

[0007] In order to achieve the above-mentioned purpose, the present invention provides a graphite product slice thickness detection device, comprising: a detection platform, a placement seat for placing the slice and a detection area on the top of the placement seat, the side wall of the placement seat is provided with an air inlet and an air outlet, and the side wall of the placement seat is embedded with a temperature control unit for controlling the temperature of the detection area; a clamping frame arranged on the top of the detection platform, the bottom of the clamping frame is arranged corresponding to the placement seat, a control member is slidably connected to the inside of the clamping frame, the control member cooperates with the inner wall of the detection area to seal the detection area, and the control member slides inside the detection area to control the opening and closing of the air inlet and the air outlet.

[0008] According to the graphite product slice thickness detection device of the present invention, it also includes a control mechanism, which detects the temperature of the detection area and controls the state of the temperature control unit according to the temperature data. The control mechanism includes an optical camera for taking pictures of the slices inside the detection area. The control mechanism analyzes the information collected by the optical camera to calculate the cross-sectional area B of the slice. The temperature control unit is a heating tube, and a temperature sensor is provided inside the detection area.

[0009] According to the graphite product slice thickness detection device of the present invention, a switching plate is provided inside the placement seat corresponding to the air inlet and the air outlet, and when the clamping frame is fitted with the placement seat, the bottom of the control member abuts against the top of the switching plate, and the control member moves up and down to drive the switching plate to move up and down, and the switching plate controls the opening and closing of the air inlet and the air outlet.

[0010] According to the graphite product slice thickness detection device of the present invention, the control component includes: a sliding column slidably connected to the top of the clamping frame, the sliding column is provided with a thrust spring on the outside, the sliding column is provided with a mounting hole for an optical camera inside, and the optical camera is facing the slice; a push plate is arranged at the bottom of the sliding column, the outer wall of the push plate is in close contact with the inner wall of the detection area, the top of the switching plate is in contact with the bottom of the push plate, and a detection space is formed between the bottom of the push plate and the detection area; a telescopic component is provided at the top of the sliding column to apply a force to the switching plate at a predetermined time.

[0011] According to the graphite product slice thickness detection device of the present invention, a switching hole is provided on the switching plate, when the switching plate slides downward a certain distance, the switching hole coincides with the air inlet, when the switching plate slides upward a certain distance, the switching hole coincides with the air outlet, the distance between the bottom of the air outlet and the top of the air inlet is equal to the diameter of the switching hole, and the side wall of the placement seat is provided with a fixing part for fixing the position of the switching plate.

[0012] According to the graphite product slice thickness detection device of the present invention, a sliding flange is provided at the bottom of the switching plate, a sliding hole matching the sliding flange is provided on the detection platform, a return spring is provided between the bottom of the sliding hole and the bottom of the sliding flange, and a patch pressure sensor is provided at the bottom of the return spring and the top of the thrust spring.

[0013] According to the graphite product slice thickness detection device of the present invention, there are two switching plates, each of which is provided with a sealing convex edge on the top, and a sealing groove cooperating with the sealing convex edge is provided on the bottom of the push plate, and the inner wall of the placement seat is provided with a sliding groove cooperating with the switching plate, and the switching plate is slidably connected to the inside of the sliding groove, and the side wall of the switching plate is provided with a sealing gasket.

[0014] The present invention also provides a detection method, comprising the following steps:

[0015] S1. Place the slice inside the detection area, the control mechanism controls the pressing frame to press it to the top of the placement seat, and the control mechanism controls the air supply mechanism to supply air to the inside of the detection area;

[0016] S2. The switch plate gradually moves upward during the air supply process until the switch plate blocks the air inlet. At this time, the switch hole is between the air inlet and the air outlet. The control mechanism controls the temperature control unit to control the temperature inside the detection area and control the temperature at T.

[0017] S3, the control mechanism controls the temperature control unit to heat or cool the air temperature to T1, and after the switch plate and the push plate are stable and motionless, the fixing part moves to fix the position of the switch plate, and the control mechanism collects slice image information, the bottom area A of the push plate, the patch pressure sensor information and the standard air volume V at temperature T 标 is the volume of the space between the bottom of the push plate and the bottom of the detection area when no object to be detected is placed, and the air volume V0 and the air volume difference δV at temperature T are calculated through the information of the patch pressure sensor;

[0018] S4. Calculate the slice thickness l by the air volume difference δV.

[0019] According to the detection method of the present invention, in step S3:

[0020] S3.1. The main thrust F1 of the push plate obtained by the patch pressure sensor is the elastic force of the push spring. The thrust F2 of the two switching plates are both the thrust of the reset spring. The thrust of the push plate on the air inside the detection area is the reasonable F of the two forces. 和 =F1-2F2, calculate the initial air pressure P0=F 和 / A;

[0021] S3.2. The fixing part applies a certain pulling force F 拉 When the temperature inside the detection area returns to T, calculate the final reasonable F at this time 终 =F1-2F2-F 拉 , the final air pressure P1 = F 终 / A, measure the distance S moved by the push plate, and get the volume change value δV1=S*A, the pressure difference δP=P0-P1, and calculate V0=δV1*(P0-δP) / δP.

[0022] According to the detection method of the present invention, the air volume difference δV=V 标 -V0, thus obtaining the slice volume and the slice thickness l=δV / B.

[0023] In summary, the technical effects produced by the present invention are:

[0024] 1. By setting up a device for automatically detecting the slices, it is ensured that the slices can be directly non-contacted in volume detection during use, and the thickness of the slices can be detected and calculated at the same time, reducing the damage to the surface of the slices caused by the detection device;

[0025] 2. By setting up a structure to control air parameters, the state of the air during slice detection is controlled to ensure the consistency of the slice state during detection, reduce changes in the slice state caused by environmental changes during the detection process, and increase the reliability of the detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0027] Figure 2 It is a schematic diagram of the cross-sectional structure of the first state of the present invention;

[0028] Figure 3 It is a schematic diagram of the cross-sectional structure of the second state of the present invention;

[0029] Figure 4 It is a schematic diagram of the cross-sectional structure of the third state of the present invention;

[0030] Figure 5 It is a schematic diagram of the three-dimensional structure of the switching board of the present invention;

[0031] Figure 6 It is a schematic diagram of the three-dimensional structure of the control component of the present invention;

[0032] In the figure, 1-detection platform, 2-air inlet, 3-air outlet, 4-placement seat, 5-sealing ring, 6-switching plate, 61-sealing flange, 62-switching hole, 63-sliding flange, 7-pressing frame, 8-control part, 81-sliding column, 82-thrust spring, 83-sealing groove, 84-mounting hole, 85-push plate, 9-chip pressure sensor, 10-detection area, 11-reset spring, 12-sliding hole, 13-telescopic part. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] See also Figure 1 to Figure 4The present invention provides a graphite product slice thickness detection device, which comprises: a detection platform 1, a placement seat 4 for placing slices and a detection area 10 on the top of the placement seat 4, by setting the placement seat 4, the slices placed inside are protected and sealed later, so as to facilitate the detection and protection of the volume of the slices, the side wall of the placement seat 4 is provided with an air inlet 2 and an air outlet 3, the inside of the detection area 10 is inflated through the air inlet 2, and the gas inside the detection area 10 is discharged through the air outlet 3, the side wall of the placement seat 4 is embedded with a temperature control unit for controlling the temperature of the detection area 10, by setting the temperature control unit, the temperature of the air inside the detection area 10 is controlled, so as to realize the control of the state of the air, ensure that the state of the slices and the air inside the detection area 10 is consistent, ensure the consistency and reliability of the slice thickness detection data, and avoid the influence of the external environment on the state detection of the slices inside the detection area 10; a pressing frame 7 is arranged on the top of the detection platform 1, the bottom of the pressing frame 7 is arranged corresponding to the placement seat 4, and by setting the pressing frame 7, it is ensured that the top surface of the base can be sealed, so as to control the detection area 10. The various parameters of the gas inside the detection area 10 are controlled and adjusted. The control member 8 is slidably connected to the inside of the compression frame 7. The control member 8 cooperates with the inner wall of the detection area 10 to seal the detection area 10. The control member 8 slides inside the detection area 10. By adjusting the position of the control member 8, the state of the gas inside the detection area 10 is adjusted, which is convenient for calculating the volume of the slice. At the same time, the opening and closing of the air inlet and the air outlet 3 are controlled to ensure that when the initial state is reached, the state of the gas inside the detection area 10 is in a stable state, preventing the gas state from changing and affecting the accuracy of the detection; the control mechanism detects the temperature of the detection area 10 and controls the state of the temperature control unit according to the temperature data to ensure that the temperature of the gas inside the detection area 10 is stable, thereby reducing the error caused when calculating the volume. The control mechanism includes an optical camera for taking pictures of the slice inside the detection area 10. The control mechanism analyzes the information collected by the optical camera and calculates the cross-sectional area B of the slice (the prior art, no longer repeated). The temperature control unit is a heating tube. A temperature sensor is provided inside the detection area 10 to detect the gas temperature inside the detection area 10 in real time.

[0035] Preferably, a switching plate 6 is provided inside the placement seat 4 of the present invention corresponding to the air inlet 2 and the air outlet 3. When the clamping frame 7 is fitted with the placement seat 4, the bottom of the control member 8 abuts against the top of the switching plate 6. The control member 8 moves up and down, driving the switching plate 6 to move up and down, and the switching plate 6 controls the opening and closing of the air inlet 2 and the air outlet 3.

[0036] See also Figure 1 , Figure 2 and Figure 5In addition, the control member 8 of the present invention includes: a sliding column 81 slidably connected to the top of the pressing frame 7, a thrust spring 82 is sleeved on the outside of the sliding column 81, and the thrust spring 82 is used to ensure the pushing pressure of the push plate 85 on the detection area 10. The interior of the sliding column 81 is provided with a mounting hole 84 for an optical camera (not shown in the figure), and the optical camera is facing the slice and can block the mounting hole 84 or directly set a sealed glass lens at the bottom of the mounting hole 84 to ensure the flatness of the bottom plane of the push plate 85, so that the slice is photographed by the optical camera, and then the area of ​​the photographed slice is calculated by visual analysis, which is convenient for the subsequent calculation of the thickness of the slice; the push plate 85 is arranged at the bottom of the sliding column 81, and the outer wall of the push plate 85 is close to the slice The inner wall of the detection area 10 ensures the sealing effect of the push plate 85 on the detection area 10. In order to ensure the sealing effect, auxiliary seals, such as sealing rings, sealing gaskets, etc., can be set on the push plate 85. The top of the switching plate 6 abuts against the bottom of the push plate 85, and a detection space is formed between the bottom of the push plate 85 and the detection area 10, which is convenient for volume calculation of the slice inside the detection space, and at the same time, the state of the gas inside the detection space is detected and controlled; a telescopic member 13 is provided on the top of the sliding column 81 to apply a force to the switching plate 6 at a predetermined time, so as to ensure that when the gas state inside the detection area 10 is stable, the position of the switching plate 6 can be fixed by the telescopic member 13 to prevent the switching plate 6 from moving and causing internal gas leakage in the detection area 10.

[0037] Furthermore, the bottom of the switching plate 6 of the present invention is provided with a sliding flange 63, and the detection platform 1 is provided with a sliding hole 12 that cooperates with the sliding flange 63. A reset spring 11 is provided between the bottom of the sliding hole 12 and the bottom of the sliding flange 63 to ensure that the reset spring 11 can push and reset the switching plate 6, ensure that the switching plate 6 abuts against the bottom of the push plate 85, and thus seal the gap of the switching plate 6. The bottom of the reset spring 11 and the top of the thrust spring 82 are provided with a patch pressure sensor 9 to ensure the switching plate 6 and the push plate 85. Force is measured to facilitate calculation of subsequent parameters. Two switching plates 6 are provided. A sealing convex edge 61 is provided on the top of each switching plate 6. A sealing groove 83 matching with the sealing convex edge 61 is provided on the bottom of the push plate 85. The sealing convex edge 61 and the sealing groove 83 match to ensure the seal between the push plate 85 and the switching plate 6. The inner wall of the placement seat 4 is provided with a slide groove matching with the switching plate 6. The switching plate 6 is slidably connected to the inside of the slide groove. A sealing gasket is provided on the side wall of the switching plate 6 to ensure the seal between the switching plate 6 and the slide groove to prevent gas leakage.

[0038] In this embodiment, combined with Figure 1 to Figure 6When in use, first place the slice to be inspected at the bottom of the inspection area 10 by a manipulator or a suction cup, then the pressing frame 7 moves downward, and a sealing ring 5 is provided on the top surface of the base, which is sealed by the pressing frame 7 and the base, and then the push plate 85 abuts against the top of the switching plate 6, and the switching plate 6 is pressed down to connect the switching hole 62 and the air inlet 2, and then the air supply mechanism supplies gas to the inside, and the gas pushes the push plate 85 to slide upward, and the switching plate 6 moves upward synchronously until the switching hole 62 is not connected with the air inlet 2, and the switching plate 6 blocks the air inlet 2, and then the switching hole 62 is not connected with the air inlet 2 and the air outlet 3 at this time, and then the control mechanism controls the temperature control unit to heat the gas inside the internal inspection area 10, and stabilize the temperature of the gas inside the inspection area 10 at the temperature T. In this process, the gas will be heated or cooled. When heating, At this time, the push plate 85 will be forced to move upward, the switching plate 6 will move upward, the switching hole 62 will be connected with the air outlet 3, and the internal gas will gradually be discharged until the switching hole 62 is not connected with the air outlet 3. On the contrary, during cooling, the push plate 85 will move down, the switching hole 62 will be connected with the air inlet 2, the air inlet will enter the gas, and the switching hole 62 will be pushed to a state where it is not connected with the air inlet 2 again. This ensures that the volume and pressure of the gas inside the detection area 10 are maintained at a fixed level. After the gas reaches a predetermined temperature and the push plate 85 is balanced, the switching plate 6 is fixed at this time, and the amount of gas inside is no longer adjusted. Then the state of the gas is adjusted, and the volume of the gas and the volume of the slice are calculated. In this way, the consistency of various states during slice measurement is achieved, the influence of environmental factors on the parameters of the slice (such as thermal expansion and contraction) is reduced, and contact with the slice is avoided to protect the slice.

[0039] The present invention also provides a detection method, comprising the following steps:

[0040] S1, placing the slice into the detection area 10, the control mechanism controls the pressing frame 7 to press against the top of the placement seat 4, and the control mechanism controls the air supply mechanism to supply air into the detection area 10;

[0041] S2, the switch plate 6 gradually moves upward during the air supply process until the switch plate 6 blocks the air inlet 2. At this time, the switch hole 62 is between the air inlet 2 and the air outlet 3. The control mechanism controls the temperature control unit to control the temperature inside the detection area 10 and controls the temperature at T;

[0042] S3, the control mechanism controls the temperature control unit to heat or cool the air temperature to T1, and after the switch plate 6 and the push plate 85 are stable and motionless, the fixing part moves to fix the position of the switch plate 6, and the control mechanism collects the slice image information, the bottom area A of the push plate 85, the information of the patch pressure sensor 9 and the standard air volume V at temperature T 标is the volume of the space between the bottom of the push plate 85 and the bottom of the detection area 10 when no object to be detected is placed, and the air volume V0 and the air volume difference δV at temperature T are calculated through the information of the patch pressure sensor 9;

[0043] S4. Calculate the slice thickness l by the air volume difference δV.

[0044] More preferably, in step S3 of the present invention:

[0045] S3.1. The main thrust F1 of the push plate 85 obtained by the patch pressure sensor 9 is the elastic force of the thrust spring 82, and the thrust F2 of the two switching plates 6 is the thrust of the reset spring 11. The thrust of the push plate 85 on the air inside the detection area 10 is the reasonable F of the two forces. 和 =F1-2F2, calculate the initial air pressure P0=F 和 / A;

[0046] S3.2, the fixing member (directly acting on the top of the sliding column, which can be a cylinder or an electric cylinder, etc., not shown in the figure, the prior art, no further description) applies a certain pulling force F 拉 When the temperature inside the detection area 10 returns to T, calculate the final reasonable F at this time 终 =F1-2F2-F 拉 , the final air pressure P1 = F 终 / A, the distance S moved by the push plate 85 is measured, and the volume change value δV1=S*A, the pressure difference δP=P0-P1, and according to the Boyle-Malior law, V0=δV1*(P0-δP) / δP is calculated, and the air volume difference δV=V 标 -V0, thus obtaining the slice volume and the slice thickness l=δV / B.

[0047] In summary, the graphite product slice thickness detection device includes: a detection platform, a placement seat for placing slices and a detection area on the top thereof, by setting the placement seat, the slices placed inside are protected and later sealed, so as to facilitate the detection and protection of the volume of the slices, the side wall of the placement seat is provided with an air inlet and an air outlet, the inside of the detection area is inflated through the air inlet, and the gas inside the detection area is discharged through the air outlet, the side wall of the placement seat is embedded with a temperature control unit for controlling the temperature of the detection area, by setting the temperature control unit, the temperature of the air inside the detection area is controlled, so as to achieve the control of the state of the air, ensure that the state of the slices and the air inside the detection area is consistent, ensure the consistency and reliability of the slice thickness detection data, and avoid the influence of the external environment on the state detection of the slices inside the detection area; a pressing frame is arranged on the top of the detection platform, the bottom of the pressing frame is arranged corresponding to the placement seat, by setting the pressing frame, it is ensured that the top surface of the base can be sealed, so as to control and adjust various parameters of the gas inside the detection area, the internal sliding connection of the pressing frame is provided with a control member, and the control member cooperates with the inner wall of the detection area to control the detection area The control part slides inside the detection area, and the state of the gas inside the detection area is adjusted by adjusting the position of the control part, so as to facilitate the calculation of the volume of the slice. At the same time, the opening and closing of the air inlet and the air outlet are controlled to ensure that when the initial state is reached, the state of the gas inside the detection area is in a stable state, so as to prevent the gas state from changing and affecting the accuracy of the detection; the control mechanism detects the temperature of the detection area and controls the state of the temperature control part according to the temperature data to ensure that the temperature of the gas inside the detection area is stable, thereby reducing the error caused when calculating the volume. The control mechanism includes an optical camera for taking pictures of the slice inside the detection area. The control mechanism analyzes the information collected by the optical camera and calculates the cross-sectional area B of the slice (the prior art, which will not be repeated here). The temperature control part is a heating tube. A temperature sensor is provided inside the detection area to detect the gas temperature inside the detection area in real time. In summary, the technical effect produced by the present invention is that a new thickness detection device is set up to ensure that the thickness of graphite product slices of any size and thickness can be detected, while avoiding contact with the slice, reducing damage to the slice, and protecting the slice.

[0048] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

[0049] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

Claims

1. A graphite product slice thickness detection device, characterized in that: include: The detection platform has a placement seat for placing slices and a detection area on the top, the side wall of the placement seat is provided with an air inlet and an air outlet, and the side wall of the placement seat is embedded with a temperature control unit for controlling the temperature of the detection area; A clamping frame is arranged on the top of the detection platform, and the bottom of the clamping frame is arranged corresponding to the placement seat. A control component is slidably connected inside the clamping frame, and the control component cooperates with the inner wall of the detection area to seal the detection area. The control component slides inside the detection area to control the opening and closing of the air inlet and the air outlet.

2. The graphite product slice thickness detection device according to claim 1, characterized in that: It also includes a control mechanism, which detects the temperature of the detection area and controls the state of the temperature control unit according to the temperature data. The control mechanism includes an optical camera for taking pictures of slices inside the detection area. The control mechanism analyzes the information collected by the optical camera to calculate the cross-sectional area B of the slice. The temperature control unit is a heating tube, and a temperature sensor is provided inside the detection area.

3. The graphite product slice thickness detection device according to claim 1, characterized in that: A switching plate is provided inside the placement seat corresponding to the air inlet and the air outlet. When the clamping frame is fitted with the placement seat, the bottom of the control member abuts against the top of the switching plate. The control member moves up and down to drive the switching plate to move up and down, and the switching plate controls the opening and closing of the air inlet and the air outlet.

4. The graphite product slice thickness detection device according to claim 3, characterized in that: The control element comprises: A sliding column slidably connected to the top of the pressing frame, wherein a thrust spring is sleeved on the outside of the sliding column, and a mounting hole for an optical camera is arranged inside the sliding column, and the optical camera faces the slice; A push plate is arranged at the bottom of the sliding column, the outer wall of the push plate is in close contact with the inner wall of the detection area, the top of the switching plate is in contact with the bottom of the push plate, and a detection space is formed between the bottom of the push plate and the detection area; A telescopic member is arranged on the top of the sliding column and applies a force to the switching plate at a predetermined time.

5. The graphite product slice thickness detection device according to claim 4, characterized in that: A switching hole is provided on the switching plate. When the switching plate slides downward a certain distance, the switching hole coincides with the air inlet. When the switching plate slides upward a certain distance, the switching hole coincides with the air outlet. The distance between the bottom of the air outlet and the top of the air inlet is equal to the diameter of the switching hole. The side wall of the placement seat is provided with a fixing part for fixing the position of the switching plate.

6. The graphite product slice thickness detection device according to claim 4 or 5, characterized in that: A sliding flange is provided at the bottom of the switching plate, a sliding hole matching the sliding flange is provided on the detection platform, a reset spring is provided between the bottom of the sliding hole and the bottom of the sliding flange, and a patch pressure sensor is provided at the bottom of the reset spring and the top of the thrust spring.

7. The graphite product slice thickness detection device according to claim 6, characterized in that: There are two switching plates, each of which is provided with a sealing convex edge on the top, and a sealing groove cooperating with the sealing convex edge is provided on the bottom of the push plate. The inner wall of the placement seat is provided with a sliding groove cooperating with the switching plate, and the switching plate is slidably connected to the inside of the sliding groove. The side wall of the switching plate is provided with a sealing gasket.

8. A detection method based on a graphite product slice thickness detection device, characterized in that: The following steps are involved: S1. Place the slice inside the detection area, the control mechanism controls the pressing frame to press it to the top of the placement seat, and the control mechanism controls the air supply mechanism to supply air to the inside of the detection area; S2. The switch plate gradually moves upward during the air supply process until the switch plate blocks the air inlet. At this time, the switch hole is between the air inlet and the air outlet. The control mechanism controls the temperature control unit to control the temperature inside the detection area and control the temperature at T. S3, the control mechanism controls the temperature control unit to heat or cool the air temperature to T1, and after the switch plate and the push plate are stable and motionless, the fixing part moves to fix the position of the switch plate, and the control mechanism collects slice image information, the bottom area A of the push plate, the patch pressure sensor information and the standard air volume V at temperature T 标 is the volume of the space between the bottom of the push plate and the bottom of the detection area when no object to be detected is placed, and the air volume V0 and the air volume difference δV at temperature T are calculated through the information of the patch pressure sensor; S4. Calculate the slice thickness l by the air volume difference δV.

9. The detection method according to claim 8, characterized in that: In step S3: S3.

1. The main thrust F1 of the push plate obtained by the patch pressure sensor is the elastic force of the push spring. The thrust F2 of the two switching plates are both the thrust of the reset spring. The thrust of the push plate on the air inside the detection area is the reasonable F of the two forces. 和 =F1-2F2, calculate the initial air pressure P0=F 和 / A; S3.

2. The fixing part applies a certain pulling force F 拉 When the temperature inside the detection area returns to T, calculate the final reasonable F at this time 终 =F1-2F2-F 拉 , the final air pressure P1 = F 终 / A, measure the distance S moved by the push plate, and get the volume change value δV1=S*A, the pressure difference δP=P0-P1, and calculate V0=δV1*(P0-δP) / δP.

10. The detection method according to claim 9, characterized in that: The air volume difference δV=V 标 -V0, thus obtaining the slice volume and the slice thickness l=δV / B.

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