A thin sheet compression deformation testing machine

Abstract

This utility model relates to the field of compression deformation testing technology, and in particular to a thin sheet compression deformation testing machine, comprising a machine base, a base mounted on the top surface of the machine base, four force sensors mounted on the base, a platform mounted on the input ends of the four force sensors, a column mounted on the top surface of the machine base and located behind the platform, a cantilever plate mounted on the top of the column, a press mounted on the cantilever plate, a pressure plate mounted on the pressure end of the press and located directly above the platform, a machine cover mounted on the top surface of the column and covering the press, and a displacement sensor mounted on the pressure plate. The four force sensors are evenly distributed at the four corners of the platform, and all four force sensors are electrically connected to the press. The displacement sensor is used to measure the amount of deformation of the thin sheet under compression. This utility model uses four force sensors to evenly support the platform and detect pressure, making pressure control more precise and improving the accuracy and precision of compression deformation testing of thin sheets.

Description

Technical Field

[0001] This utility model relates to the field of compression deformation testing technology, and in particular to a thin sheet compression deformation testing machine. Background Technology

[0002] Some thin sheets can be compressed under external force and return to their original shape after the external force is removed, giving the thin sheets a buffering performance. Other thin sheets require control of the amount of compression deformation during use. Therefore, when manufacturing these thin sheets, it is necessary to conduct compression deformation tests to ensure that these thin sheets meet the required compression requirements. In existing patents, Chinese patent application number 202310506349.1 discloses a compression deformation testing device and method. The device includes: a support, a first plate, a second plate, and a digital display scale. The first plate is connected to the support and extends in a first horizontal plane. After being connected to the support, the first plate is fixed relative to the support. The second plate is connected to the support and extends in a second horizontal plane. After being connected to the support, the second plate can slide back and forth relative to the support. After the second plate slides relative to the support, the distance between the second plate and the first plate decreases or increases. The digital display scale is connected to the support, and the extension direction of the digital display scale is consistent with the vertical direction. The digital display scale is at least opposite to the first plate and the second plate. The digital display scale can record the distance the second plate moves. The device also includes a driving mechanism, which is detachably disposed on the side of the support near the second plate. The driving mechanism can provide a driving force to the second plate close to the first plate. This patent document describes a compression deformation test performed by moving a second plate supporting the workpiece from bottom to top. However, this method suffers from poor stability, and the driving mechanism is a hydraulic jack. A pressure gauge on the jack is used to determine the pressure the workpiece can withstand. The pressure reading reflects the pressure exerted on the workpiece, but the accuracy of the pressure measurement is easily affected by factors inherent to the hydraulic jack itself, making it difficult to guarantee accurate readings. Therefore, the patent has significant drawbacks and urgently requires a solution. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a sheet compression deformation testing machine.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A sheet compression deformation testing machine includes a machine base, a base mounted on the top surface of the machine base, four force sensors mounted on the base, a platform mounted on the input ends of the four force sensors, a column mounted on the top surface of the machine base and located behind the platform, a cantilever plate mounted on the top of the column, a press mounted on the cantilever plate, a pressure plate mounted on the pressure end of the press and located directly above the platform, a machine cover mounted on the top surface of the column and covering the press, and a displacement sensor mounted on the pressure plate. The four force sensors are evenly distributed at the four corners of the platform, and all four force sensors are electrically connected to the press. The displacement sensor is used to measure the amount of deformation of the sheet under compression.

[0006] Furthermore, the four force sensors are arranged in a circular array, and the included angle between any two adjacent force sensors is 90°.

[0007] Furthermore, a guardrail is installed on the top edge of the machine platform, and an operating port is provided on the front of the guardrail. The operating port is located on the front side of the platform, and the pressure plate, column and platform are all located inside the guardrail.

[0008] Furthermore, safety light curtains are installed on both sides of the operating port.

[0009] Furthermore, several guide rods are installed on the top surface of the pressure plate, and the guide rods slide through the cantilever plate.

[0010] Furthermore, a cable chain connects the cover and the pressure plate.

[0011] Furthermore, a three-color warning device is installed on the outer wall of the hood.

[0012] The beneficial effects of this invention are as follows: In practical applications, a thin sheet is placed on a platform. A press then drives a pressure plate, along with displacement sensors, to move downwards towards the platform. When the displacement sensors reach a preset height, they are reset to zero. At this point, the pressure plate is in contact with the top surface of the thin sheet. The press continues to drive the pressure plate and displacement sensors downwards, causing the pressure plate to continuously press down on the thin sheet. As the pressure on the thin sheet gradually increases, the sheet undergoes compression deformation, causing the pressure plate to move the displacement sensors downwards until the pressure values ​​detected by the four force sensors reach the preset pressure values. At this point, the amount of compression deformation of the thin sheet equals the displacement of the displacement sensors after they have been reset to zero. Then, the press drives the pressure plate and displacement sensors upwards to reset, thus completing the compression deformation test of the thin sheet. This invention uses four force sensors to evenly support and detect pressure on the platform, making pressure control more precise and improving the accuracy and precision of the compression deformation test on the thin sheet. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2This is a three-dimensional structural diagram of the concealed cover, safety light curtain, and guardrail of this utility model.

[0015] Explanation of reference numerals in the attached figures:

[0016] 1. Machine base; 2. Base; 3. Force sensor; 4. Platform; 5. Column; 6. Cantilever plate; 7. Press; 8. Pressure plate; 9. Machine cover; 10. Displacement sensor; 11. Guardrail; 12. Operating port; 13. Safety light curtain; 14. Guide rod; 15. Three-color warning device; 16. Thin sheet. Detailed Implementation

[0017] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0018] like Figure 1 and Figure 2 As shown, the present invention provides a sheet compression deformation testing machine, which includes a machine base 1, a base 2 mounted on the top surface of the machine base 1, four force sensors 3 mounted on the base 2, a platform 4 mounted on the input end of the four force sensors 3, a column 5 mounted on the top surface of the machine base 1 and located behind the platform 4, a cantilever plate 6 mounted on the top of the column 5, a press 7 mounted on the cantilever plate 6, a pressure plate 8 mounted on the pressure end of the press 7 and located directly above the platform 4, a machine cover 9 mounted on the top surface of the column 5 and covering the press 7, and a displacement sensor 10 mounted on the pressure plate 8. The four force sensors 3 are evenly distributed at the four corners of the platform 4, and all four force sensors 3 are electrically connected to the press 7. The displacement sensor 10 is used to measure the amount of deformation of the sheet 16 under compression. Specifically, the sheet 16 can be a film, a soft foam sheet, a gasket, or foam, etc.

[0019] In practical applications, the sheet 16 is placed on the stage 4. Then, the press 7 drives the pressure plate 8, along with the displacement sensor 10, to move downwards towards the stage 4. When the displacement sensor 10 reaches a preset height, it is reset to zero. At this point, the pressure plate 8 is in contact with the top surface of the sheet 16. The press 7 continues to drive the pressure plate 8 and displacement sensor 10 downwards, causing the pressure plate 8 to continuously press down on the sheet 16. As the pressure of the pressure plate 8 on the sheet 16 gradually increases, the sheet 16 undergoes compression deformation, causing the pressure plate 8 to move the displacement sensor 10 downwards until the pressure value detected by the four force sensors 3 reaches the preset pressure value. At this point, the amount of compression deformation of the sheet 16 equals the displacement of the displacement sensor 10 after it has been reset to zero. Then, the press 7 drives the pressure plate 8, along with the displacement sensor 10, to return to its original position, thus completing the compression deformation test of the sheet 16. This invention uses four force sensors 3 to evenly support and detect pressure on the stage 4, making pressure control more precise and improving the accuracy and precision of the compression deformation test on the sheet 16.

[0020] In this embodiment, the four force sensors 3 are arranged in a circular array, and the included angle between any two adjacent force sensors 3 is 90°. This structural design further improves the accuracy of the force sensors 3 in detecting the pressure on the stage 4.

[0021] In this embodiment, a guardrail 11 is installed on the top edge of the machine platform 1, and an operating opening 12 is provided on the front of the guardrail 11. The operating opening 12 is located on the front side of the platform 4, and the pressure plate 8, the column 5, and the platform 4 are all located inside the guardrail 11. The guardrail 11 serves a protective function, and the operating opening 12 allows the operator to take and put the sheet 16.

[0022] In this embodiment, safety light curtains 13 are installed on both sides of the operating port 12, and the safety light curtains 13 are electrically connected to the press 7. The safety light curtains 13 serve a safety protection function and improve the safety of machine operation.

[0023] In this embodiment, a plurality of guide rods 14 are mounted on the top surface of the pressure plate 8, and the guide rods 14 slide through the cantilever plate 6. During the lifting and lowering of the pressure plate 8, the guide rods 14 and the cantilever plate 6 slide and move together, which improves the stability of the lifting and lowering of the pressure plate 8.

[0024] In this embodiment, a cable chain connects the cover 9 and the pressure plate 8. The cable chain further improves the stability of the lifting and lowering of the pressure plate 8.

[0025] In this embodiment, a three-color warning device 15 is installed on the outer wall of the machine cover 9. When the three-color warning device 15 is in the green light state, it indicates that the machine is in the standby state. When the three-color warning device 15 is in the yellow light state, it indicates that the machine is in the working state. When the three-color warning device 15 is in the red light state, it indicates that the machine is in the emergency alarm state.

[0026] Preferably, when the machine performs a compression deformation test on the sheet, the machine's control system can calculate the average value of the four force sensors 3 using existing algorithms to improve the accuracy of pressure detection.

[0027] All technical features in this embodiment can be freely combined according to actual needs.

[0028] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A sheet compression set tester characterized by: The system includes a machine base (1), a base (2) mounted on the top surface of the machine base (1), four force sensors (3) mounted on the base (2), a platform (4) mounted on the input end of the four force sensors (3), a column (5) mounted on the top surface of the machine base (1) and located on the rear side of the platform (4), a cantilever plate (6) mounted on the top of the column (5), a press (7) mounted on the cantilever plate (6), a pressure plate (8) mounted on the pressure end of the press (7) and located directly above the platform (4), a machine cover (9) mounted on the top surface of the column (5) and covering the press (7), and a displacement sensor (10) mounted on the pressure plate (8). The four force sensors (3) are evenly distributed at the four corners of the platform (4). All four force sensors (3) are electrically connected to the press (7). The displacement sensor (10) is used to measure the amount of deformation of the sheet (16) when compressed.

2. A sheet compression set tester according to claim 1, wherein: The four force sensors (3) are arranged in a ring array, and the included angle between two adjacent force sensors (3) is 90°.

3. The sheet compression set tester of claim 1 wherein: The top edge of the machine platform (1) is equipped with a guardrail (11), and the front of the guardrail (11) is provided with an operation port (12). The operation port (12) is located on the front side of the platform (4). The pressure plate (8), the column (5) and the platform (4) are all located inside the guardrail (11).

4. A sheet compression set tester according to claim 3, wherein: Safety light curtains (13) are installed on both sides of the operating port (12).

5. A sheet compression deformation testing machine according to claim 1, characterized in that: Several guide rods (14) are installed on the top surface of the pressure plate (8), and the guide rods (14) slide through the cantilever plate (6).

6. A sheet compression deformation testing machine according to claim 1, characterized in that: A cable chain connects the machine cover (9) and the pressure plate (8).

7. A sheet compression deformation testing machine according to claim 1, characterized in that: The outer wall of the hood (9) is equipped with a three-color warning device (15).

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