Pressure sensor test bench

Abstract

The utility model discloses a pressure sensor test bench which comprises a supporting plate, a box shell is installed on the outer wall of the top of the supporting plate through bolts, a base is installed in the box shell through bolts, a guide seat is installed on the outer wall of one side of the bottom of the base through bolts, and a piston cylinder is installed on the outer wall of the bottom of the guide seat through bolts. A cylinder barrel is in threaded connection with the outer wall of one side of the piston cylinder, a piston rod is slidably inserted into the cylinder barrel, a sliding seat is mounted on one side of the inner wall of the box shell through bolts, and a sliding plate is slidably connected outside the sliding seat. After a test is finished, hydraulic oil can be injected into the piston cylinder, so that the output end of the piston cylinder is lifted, a pressure sensor in the base is jacked up, a worker can easily take the pressure sensor after the test, the box shell is matched with the box door and the supporting plate to form a closed structure, and the phenomenon that the pressure sensor is damaged during the test is avoided. Fragments generated by damage of the pressure sensor due to large stress splash out to hurt people around.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure sensor detection, in particular to a pressure sensor test bench. Background Art

[0002] Pressure sensor is one of the most commonly used sensors in industrial practice and is widely used. The detection accuracy of pressure sensor is closely related to the processing accuracy of the product, especially for products with high processing accuracy requirements. For example, the processing accuracy of vehicle friction plates depends on the detection accuracy of the pressure sensors. In actual production, the detection accuracy of pressure sensors may decrease due to wear, vibration, etc. In order to ensure the processing accuracy of friction plates, the detection accuracy of pressure sensors needs to be calibrated regularly.

[0003] For example, a pressure sensor test bench with application number CN202222626186.4 and authorization announcement date 20230307 includes a frame body, a hydraulic cylinder, a pad and a standard sensor. The frame body includes a base and a top plate. The hydraulic cylinder is arranged on the base and the piston rod of the hydraulic cylinder is connected to the pad upward. Under the drive of the hydraulic cylinder, the pad can press the coaxially arranged standard sensor and the sensor to be tested upward on the top plate. The utility model has reasonable structure, convenient operation and good flexibility, which is conducive to popularization and application.

[0004] During the traditional pressure sensor test bench experiment, the pressure sensor is subjected to large force, which can easily cause the tested pressure sensor to stick tightly to the pad. It takes a lot of effort to remove the pressure sensor, which makes it inconvenient to remove the pressure sensor. Therefore, it is urgent to design a pressure sensor test bench to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to provide a pressure sensor test bench to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A pressure sensor test bench comprises a support plate, a box shell is installed on the outer wall at the top of the support plate by bolts, a base is installed inside the box shell by bolts, and a guide seat is installed on the outer wall of one side of the bottom of the base by bolts, a piston cylinder is installed on the outer wall of the bottom of the guide seat by bolts, a cylinder barrel is threadedly connected to the outer wall of one side of the piston cylinder, and a piston rod is slidably inserted inside the cylinder barrel, a sliding seat is installed on one side of the inner wall of the box shell by bolts, and a slide plate is slidably connected to the outside of the sliding seat, a slide rail is installed on the outer wall of one side of the slide plate by bolts, and a slide seat is slidably connected to the outside of the slide rail, a hinge is provided on the outer wall of one side of the slide seat, and the hinge is connected to one end of the piston rod, a screw rod is installed inside the sliding seat by a bearing, and the screw rod is threadedly connected to the slide plate.

[0008] Furthermore, connecting pipes 1 are provided on the outer walls on both sides of the box shell, and one of the connecting pipes 1 is connected to the piston cylinder, and one end of the other connecting pipe 1 extends to the inside of the cylinder, and a box door is provided on the outer wall of one side of the box shell.

[0009] Furthermore, a bracket is installed at the bottom of the support plate by bolts, and two pump bodies are installed on the outer walls on both sides of the bracket by bolts.

[0010] Furthermore, an oil delivery pipe is provided between the four pump bodies, and a mounting pipe is installed at one end of two of the pump bodies by bolts.

[0011] Furthermore, a connecting pipe 2 is inserted into one end of the installation pipe, and the two connecting pipes 2 are respectively connected to the two connecting pipes 1.

[0012] Furthermore, a hydraulic cylinder is installed on one side of the top of the inner wall of the box shell by bolts, and the hydraulic cylinder is connected to the oil pipeline through a pipeline, and a pressure block is installed on the output end of the hydraulic cylinder by bolts.

[0013] In the above technical solution, the utility model provides a pressure sensor test bench, which has the following beneficial effects:

[0014] (1) Through the provided piston cylinder and guide seat, after the test is completed, hydraulic oil can be injected into the piston cylinder to raise the output end of the piston cylinder, thereby lifting the pressure sensor inside the base, so that workers can easily take the pressure sensor after the test.

[0015] (2) The box shell, the box door, and the support plate can form a closed structure to prevent the pressure sensor from being damaged by a large force during the test and causing fragments to splash out and injure surrounding workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 The utility model provides an overall structural schematic diagram of a pressure sensor test bench embodiment.

[0018] Figure 2 A schematic diagram of the plane structure of a box shell provided for an embodiment of a pressure sensor test bench of the utility model.

[0019] Description of reference numerals:

[0020] 1. Bracket; 2. Pump body; 3. Support plate; 4. Oil pipeline; 5. Box shell; 6. Box door; 7. Hydraulic cylinder; 8. Pressure block; 9. Base; 10. Guide seat; 11. Piston cylinder; 12. Connecting pipe 1; 13. Sliding seat; 14. Screw rod; 15. Slide plate; 16. Slide rail; 17. Slide seat; 18. Cylinder barrel; 19. Hinge; 20. Piston rod; 21. Connecting pipe 2; 22. Mounting pipe. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0022] like Figure 1-2 As shown, a pressure sensor test bench provided by an embodiment of the utility model includes a support plate 3, a box shell 5 is installed on the top outer wall of the support plate 3 by bolts, a base 9 is installed inside the box shell 5 by bolts, and a guide seat 10 is installed on the outer wall of one side of the bottom of the base 9 by bolts, a piston cylinder 11 is installed on the outer wall of the bottom of the guide seat 10 by bolts, a cylinder barrel 18 is threadedly connected to the outer wall of one side of the piston cylinder 11, and a piston rod 20 is slidably inserted inside the cylinder barrel 18, a sliding seat 13 is installed on one side of the inner wall of the box shell 5 by bolts, and a slide plate 15 is slidably connected to the outside of the sliding seat 13, a slide rail 16 is installed on the outer wall of one side of the slide plate 15 by bolts, and a slide seat 17 is slidably connected to the outside of the slide rail 16, a hinge 19 is provided on the outer wall of one side of the slide seat 17, and the hinge 19 is connected to one end of the piston rod 20, a screw rod 14 is installed inside the sliding seat 13 by a bearing, and the screw rod 14 is threadedly connected to the slide plate 15.

[0023] Specifically, in this embodiment, a support plate 3 is included, a box shell 5 is installed on the top outer wall of the support plate 3 by bolts, a base 9 is installed inside the box shell 5 by bolts, and a guide seat 10 is installed on the outer wall of one side of the bottom of the base 9 by bolts, a piston cylinder 11 is installed on the outer wall of the bottom of the guide seat 10 by bolts, the piston cylinder 11 is composed of a cylinder body and a piston member, a cylinder barrel 18 is threadedly connected to the outer wall of one side of the piston cylinder 11, and a piston rod 20 is slidably inserted inside the cylinder barrel 18, a sliding seat 13 is installed on one side of the inner wall of the box shell 5 by bolts, and a slide plate 15 is slidably connected to the outside of the sliding seat 13, a slide rail 16 is installed on the outer wall of one side of the slide plate 15 by bolts, and the slide rail 16 is slidably connected to the outside of the slide seat 17, a hinge 19 is provided on the outer wall of one side of the slide seat 17, and the hinge 19 It is connected to one end of the piston rod 20, and a screw member 14 is installed inside the sliding seat 13 through a bearing. Before the test, the screw member 14 is rotated to make the slide plate 15 lift and lower the structure composed of the cylinder barrel 18 and the piston cylinder 11, so that the piston cylinder 11 is separated from the base 9. After the test, the screw member 14 can be rotated again to insert the piston cylinder 11 into the guide seat 10, and the hinge member 19 can be pulled to open the piston rod 20 inside the cylinder barrel 18, so that the piston rod 20 no longer blocks the cylinder barrel 18, and the hydraulic oil inside the connecting pipe 12 can flow into the piston cylinder 11, so that the output end of the piston cylinder 11 rises, thereby lifting the pressure sensor inside the base 9, so that the workers can take the pressure sensor after the test. The screw member 14 is threadedly connected to the slide plate 15.

[0024] The utility model provides a pressure sensor test bench. After the test is completed, hydraulic oil can be injected into the piston cylinder 11 to raise the output end of the piston cylinder 11, thereby lifting the pressure sensor inside the base 9, so that workers can easily take the pressure sensor after the test.

[0025] In one embodiment provided by the present utility model, Figure 1-2 As shown, connecting pipes 12 are provided on the outer walls of both sides of the box shell 5, and one of the connecting pipes 12 is connected to the piston cylinder 11, and one end of the other connecting pipe 12 extends to the inside of the cylinder 18. A box door 6 is provided on the outer wall of one side of the box shell 5. The box shell 5, the box door 6 and the support plate 3 can form a closed structure to prevent the pressure sensor from being damaged by a large force during testing and causing fragments to splash out and injure surrounding personnel.

[0026] In another embodiment provided by the present utility model, Figure 1 As shown, a bracket 1 is installed at the bottom of the support plate 3 by bolts, and two pump bodies 2 are installed on the outer walls on both sides of the bracket 1 by bolts. The pump body 2 is a high-pressure gear pump. An oil pipeline 4 is arranged between the four pump bodies 2, and one end of two pump bodies 2 is installed with a mounting pipe 22 by bolts, and one end of the mounting pipe 22 is plugged with a connecting pipe 21, and the two connecting pipes 21 are respectively connected to the two connecting pipes 12.

[0027] In another embodiment provided by the present utility model, Figure 2 As shown, a hydraulic cylinder 7 is installed on one side of the top of the inner wall of the box shell 5 by bolts. The model of the hydraulic cylinder 7 is preferably MOB80*300, and the hydraulic cylinder 7 is connected to the oil pipe 4 through a pipeline. A pressure block 8 is installed on the output end of the hydraulic cylinder 7 by bolts. The pump body 2 is operated to start, so that the hydraulic oil flows into the hydraulic cylinder 7 through the oil pipe 4, so that the position of the pressure block 8 drops, so that the pressure block 8 applies pressure to the pressure sensor on the base 9, thereby realizing the test of the pressure sensor.

[0028] Example 1

[0029] A pressure sensor test bench comprises a support plate 3, a box shell 5 is installed on the top outer wall of the support plate 3 by bolts, a base 9 is installed inside the box shell 5 by bolts, and a guide seat 10 is installed on the outer wall of one side of the bottom of the base 9 by bolts, a piston cylinder 11 is installed on the outer wall of the bottom of the guide seat 10 by bolts, the piston cylinder 11 is composed of a cylinder body and a piston member, a cylinder barrel 18 is threadedly connected to the outer wall of one side of the piston cylinder 11, and a piston rod 20 is slidably inserted inside the cylinder barrel 18, a sliding seat 13 is installed on one side of the inner wall of the box shell 5 by bolts, and a slide plate 15 is slidably connected to the outside of the slide plate 13, a slide rail 16 is installed on the outer wall of one side of the slide plate 15 by bolts, and a slide seat 17 is slidably connected to the outside of the slide rail 16, a hinge 19 is provided on the outer wall of one side of the slide seat 17, and the hinge 19 It is connected to one end of the piston rod 20, and a screw member 14 is installed inside the sliding seat 13 through a bearing. Before the test, the screw member 14 is rotated to make the slide plate 15 lift and lower the structure composed of the cylinder barrel 18 and the piston cylinder 11, so that the piston cylinder 11 is separated from the base 9. After the test, the screw member 14 can be rotated again to insert the piston cylinder 11 into the guide seat 10, and the hinge member 19 can be pulled to open the piston rod 20 inside the cylinder barrel 18, so that the piston rod 20 no longer blocks the cylinder barrel 18, and the hydraulic oil inside the connecting pipe 12 can flow into the piston cylinder 11, so that the output end of the piston cylinder 11 rises, thereby lifting the pressure sensor inside the base 9, so that the workers can take the pressure sensor after the test. The screw member 14 is threadedly connected to the slide plate 15.

[0030] Example 2

[0031] This embodiment is further limited on the basis of the embodiment 1, wherein the outer walls on both sides of the box shell 5 are provided with connecting pipes 12, and one of the connecting pipes 12 is communicated with the piston cylinder 11, and one end of the other connecting pipe 12 extends to the inside of the cylinder 18, and the outer wall on one side of the box shell 5 is provided with a box door 6, and the box shell 5, the box door 6, and the support plate 3 can form a closed structure to prevent the pressure sensor from being damaged by a large force during the test and the resulting fragments from splashing out and injuring the surrounding workers; the bottom of the support plate 3 is installed with a bracket 1 by bolts, and the outer walls on both sides of the bracket 1 are installed with two pump bodies 2 by bolts, and the pump body 2 is a high-pressure gear pump, and an oil delivery device is provided between the four pump bodies 2. Tube 4, wherein one end of the two pump bodies 2 is installed with a mounting tube 22 by bolts, one end of the mounting tube 22 is plugged with a connecting tube 21, and the two connecting tubes 21 are respectively connected with the two connecting tubes 12; a hydraulic cylinder 7 is installed on one side of the top of the inner wall of the box shell 5 by bolts, the model of the hydraulic cylinder 7 is preferably MOB80*300, and the hydraulic cylinder 7 is connected with the oil pipeline 4 through a pipeline, and a pressure block 8 is installed on the output end of the hydraulic cylinder 7 by bolts. The pump body 2 is operated to start, so that the hydraulic oil flows into the hydraulic cylinder 7 through the oil pipeline 4, so that the position of the pressure block 8 drops, so that the pressure block 8 presses the pressure sensor on the base 9, thereby realizing the test of the pressure sensor.

[0032] Working principle: When using the device to test the pressure sensor, the box door 6 can be opened, and then the pressure sensor to be tested can be placed on the base 9. During this process, the worker can rotate the screw rod 14 to make the slide plate 15 lift the structure composed of the cylinder barrel 18 and the piston cylinder 11, so that the piston cylinder 11 is separated from the base 9. Then the worker can close the box door 6, and then operate the pump body 2 to start, so that the hydraulic oil flows into the hydraulic cylinder 7 through the oil pipe 4, so that the position of the pressure block 8 drops, so that the pressure block 8 presses on the pressure sensor on the base 9, and the pressure sensor is tested. During the test, the box shell 5 cooperates with the box door 6. The support plate 3 can form a closed structure to prevent the pressure sensor from being damaged by a large force during the test and causing fragments to splash out and injure surrounding workers. After the test is completed, the screw member 14 can be rotated again to insert the piston cylinder 11 into the guide seat 10, and the hinge member 19 can be pulled to open the piston rod 20 inside the cylinder 18, so that the piston rod 20 no longer blocks the cylinder 18, and the hydraulic oil inside the connecting pipe 12 can flow into the piston cylinder 11, so that the output end of the piston cylinder 11 rises, thereby lifting the pressure sensor inside the base 9, so that the workers can take the pressure sensor after the test.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A pressure sensor test bench, comprising a support plate (3), characterized in that: A box shell (5) is mounted on the top outer wall of the support plate (3) by means of bolts, a base (9) is mounted inside the box shell (5) by means of bolts, and a guide seat (10) is mounted on the outer wall of one side of the bottom of the base (9) by means of bolts, a piston cylinder (11) is mounted on the outer wall of the bottom of the guide seat (10) by means of bolts, a cylinder barrel (18) is threadedly connected to the outer wall of one side of the piston cylinder (11), and a piston rod (20) is slidably inserted inside the cylinder barrel (18), and a sliding piston (20) is mounted on one side of the inner wall of the box shell (5) by means of bolts. A sliding seat (13) is provided, and a sliding plate (15) is slidably connected to the outside of the sliding seat (13); a sliding rail (16) is installed on the outer wall of one side of the sliding plate (15) through bolts, and a sliding seat (17) is slidably connected to the outside of the sliding rail (16); a hinge (19) is provided on the outer wall of one side of the sliding seat (17), and the hinge (19) is connected to one end of a piston rod (20); a screw rod (14) is installed inside the sliding seat (13) through a bearing, and the screw rod (14) is threadedly connected to the sliding plate (15).

2. A pressure sensor test bench according to claim 1, characterized in that: The outer walls of both sides of the box shell (5) are provided with connecting pipes (12), and one of the connecting pipes (12) is communicated with the piston cylinder (11), and one end of the other connecting pipe (12) extends into the cylinder barrel (18). The outer wall of one side of the box shell (5) is provided with a box door (6).

3. A pressure sensor test bench according to claim 1, characterized in that: A bracket (1) is mounted on the bottom of the support plate (3) via bolts, and two pump bodies (2) are mounted on the outer walls on both sides of the bracket (1) via bolts.

4. A pressure sensor test bench according to claim 3, characterized in that: An oil delivery pipe (4) is provided between the four pump bodies (2), and a mounting pipe (22) is mounted on one end of two of the pump bodies (2) via bolts.

5. A pressure sensor test bench according to claim 4, characterized in that: One end of the installation tube (22) is plugged with a second connecting tube (21), and the two second connecting tubes (21) are respectively connected to the two first connecting tubes (12).

6. A pressure sensor test bench according to claim 3, characterized in that: A hydraulic cylinder (7) is installed on one side of the top of the inner wall of the box shell (5) by means of bolts, and the hydraulic cylinder (7) is connected to the oil delivery pipe (4) through a pipeline, and a pressure block (8) is installed on the output end of the hydraulic cylinder (7) by means of bolts.

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