Gas spring pressure testing machine

Abstract

The utility model relates to the technical field of gas spring detection equipment, in particular to a gas spring pressure testing machine, which comprises a test board, a mounting mechanism and a stand column are arranged at the top of the test board, and a top plate is fixedly mounted at the top end of the stand column. By arranging the feeding and discharging mechanism and adjusting the electric push rod, the distance between the first mounting rod and the second mounting rod is adaptively adjusted, so that the piston rod part of the gas spring is fixed through the first clamping assembly, and the electric push rod is opened again to adjust the position of the piston rod; the bottom end of the gas spring is in contact with a first insertion groove by adjusting an electric push rod, a cylinder body part is fixed by a second clamping assembly, and reverse operation is performed during blanking, so that the operation is very convenient and rapid, the mounting position of the gas spring is very accurate, the gas spring is prevented from inclining during testing, and the testing efficiency is improved. The test result is more accurate, and the loading and unloading efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas spring detection equipment, in particular to a gas spring pressure testing machine. Background Art

[0002] A gas spring is an industrial accessory that can perform functions such as support, cushioning, braking, height adjustment, and angle adjustment. It consists of the following parts: a pressure cylinder, a piston rod, a piston, a sealing guide sleeve, a filler (an inert gas or an oil-gas mixture), an in-cylinder control element, an out-of-cylinder control element (referring to a controllable gas spring), and a joint. The principle is to fill a closed pressure cylinder with an inert gas or an oil-gas mixture so that the pressure in the cavity is several times or dozens of times higher than the atmospheric pressure, and to achieve the movement of the piston rod by using the pressure difference generated by the cross-sectional area of ​​the piston rod being smaller than the cross-sectional area of ​​the piston. Due to the fundamental difference in principle, gas springs have significant advantages over ordinary springs: relatively slow speed, little change in dynamic force (generally within 1:1.2), and easy control.

[0003] At present, gas springs need to be pressure tested after production. While testing their ultimate load, they also need to test whether the product is qualified.

[0004] However, when testing the current gas spring, the gas spring parts need to be manually installed into the plug-in barrel and the clamps need to be rotated to fix them. The gas spring parts also need to be disassembled when unloading. The unloading and unloading process is very troublesome, and the efficiency of the gas spring test is greatly reduced, which is not conducive to the pressure test of the gas spring. Utility Model Content

[0005] The purpose of the present utility model is to overcome the deficiencies of the prior art and provide a gas spring pressure testing machine to solve the technical problem that, when testing the current gas spring, the gas spring parts need to be manually installed into the plug-in barrel and the clamps need to be rotated to fix them, and the parts also need to be disassembled when unloading, which is very troublesome. The efficiency of gas spring testing is greatly reduced, which is very unfavorable for the pressure testing of gas springs.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The top of the motor is fixed with a gear train of the motor, and the top of the gear train is fixed with a gear train of the motor, and the gear train is connected with the gear train of the motor to the gear train of the motor.

[0008] Furthermore, the components of the clamping assembly 1 and the clamping assembly 2 are the same, both including motor 2, a screw rod, a spring, a limit frame and a fixed seat. The motor 2 and the fixed seat are respectively fixedly mounted on the rear outer walls of the mounting rod 1 and the mounting rod 2. The output end of the motor 2 is fixedly connected to the screw rod, and the limit frame is movably sleeved on the outside of the screw rod.

[0009] Furthermore, a limiting slot is provided inside the mounting rod 1 and the mounting rod 2, the limiting clip is movably inserted into the limiting slot, and the front end extends to the front side of the mounting rod 1 and the mounting rod 2, the spring is movably sleeved on the outside of the screw rod, and the threads on both sides of the screw rod are in opposite directions.

[0010] Furthermore, the pressurizing mechanism includes a hydraulic push rod and a lifting plate, the hydraulic push rod is fixedly installed on the top of the top plate, and the output end of the hydraulic push rod is fixedly connected to the lifting plate.

[0011] Furthermore, support legs are fixedly installed on the bottom of the test bench, and foot pads are fixedly installed on the bottom ends of the support legs.

[0012] Furthermore, a measuring ruler is fixedly installed on the top of the test bench, and a pointer is fixedly installed on one side of the lifting plate, and the pointer is slidably connected to the front surface of the measuring ruler.

[0013] Furthermore, the mounting mechanism includes a bottom block, a pressure sensor 1, a plug-in slot 1, a top block, a pressure sensor 2 and a plug-in slot 2, the bottom block is fixedly mounted on the top of the test bench, the pressure sensor 1 is fixedly mounted inside the bottom block, the plug-in slot 1 is fixedly mounted on the top of the bottom block, the pressure sensor 2 is fixedly mounted inside the top block, the top block is fixedly mounted on the bottom of the lifting plate, and the plug-in slot 2 is fixedly mounted on the bottom of the top block.

[0014] Beneficial effects of the utility model:

[0015] By providing a loading and unloading mechanism, when in use, the height of the moving frame is adjusted as needed and fixed by bolts, the switch of motor 1 is turned on, and the rotating shaft is rotated to a suitable angle, the electric push rod is adjusted, and the distance between the mounting rod 1 and the mounting rod 2 is adaptively adjusted, so that the piston rod part of the gas spring is fixed by the clamping component 1, and the electric push rod is turned on again, the position of the piston rod is adjusted, and the gas spring is made vertical by using motor 1, and the electric push rod is adjusted so that the bottom end of the gas spring contacts the plug-in slot 1, and the cylinder part is fixed by the clamping component 2. The reverse operation can be performed when unloading, which is very convenient and quick, makes its installation position very accurate, and avoids the gas spring from tilting during testing, making the test results more accurate and greatly improving the efficiency of loading and unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a three-dimensional schematic diagram of the loading and unloading mechanism of the gas spring pressure testing machine embodiment;

[0018] Figure 2 This is a schematic top view of the three-dimensional structure of the loading and unloading mechanism of the gas spring pressure testing machine embodiment;

[0019] Figure 3 This is a partial cross-sectional schematic diagram of an embodiment of the gas spring pressure testing machine;

[0020] Figure 4 This is a schematic front view of an embodiment of a gas spring pressure testing machine;

[0021] Figure 5 This is a rear view schematic diagram of the loading and unloading mechanism of the gas spring pressure testing machine embodiment;

[0022] Figure 6 For the embodiment of the gas spring pressure testing machine Figure 3 A in the middle is an enlarged structural diagram;

[0023] Figure 7 For the embodiment of the gas spring pressure testing machine Figure 5 Enlarged structural diagram at point B in the middle.

[0024] Explanation of the symbols in the figure: 1. Test bench; 2. Bottom block; 3. Pressure sensor 1; 4. Plug slot 1; 5. Hydraulic push rod; 6. Top plate; 7. Column; 8. Top block; 9. Pressure sensor 2; 10. Plug slot 2; 11. Motor 1; 12. Measuring ruler; 13. Pointer; 14. Limit bolt; 15. Moving frame; 16. Rotating shaft; 17. Electric push rod; 18. Support leg; 19. Foot pad; 20. Mounting rod 1; 21. Mounting rod 2; 23. Lifting plate; 24. Limit clamp; 25. Screw; 26. Spring. DETAILED DESCRIPTION

[0025] The following is a combination of the appended examples of the present invention Figure 1-7 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0027] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, the singular forms "a", "an" and "the" are intended to include plural forms unless the context clearly indicates otherwise.

[0028] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0029] See also Figure 1-7As shown, a gas spring pressure testing machine includes: a test bench 1, a mounting mechanism and a column 7 are provided on the top of the test bench 1, a top plate 6 is fixedly installed on the top of the column 7, a pressure mechanism is provided on the top of the top plate 6, and a loading and unloading mechanism is provided on the outside of the column 7. The loading and unloading mechanism includes a moving frame 15, a limit bolt 14, a motor 11, a rotating shaft 16, an electric push rod 17, a mounting rod 120, a mounting rod 21, a clamping assembly 1 and a clamping assembly 2. The moving frame 15 is movably sleeved on the outside of the column 7 and fixed by the limit bolt 14. The motor 11 is fixedly mounted on the outer wall of one side of the moving frame 15, the rotating shaft 16 is fixedly mounted on the outer walls of both sides of the mounting rod 21, the other end of the rotating shaft 16 on one side is fixedly connected to the output end of the motor 11, and the other end of the rotating shaft 16 on the other side is movably inserted into the interior of the moving frame 15 on the other side, the electric push rod 17 is fixedly mounted on the bottom of the mounting rod 21, and the output end of the electric push rod 17 is fixedly connected to the mounting rod 1 20, the clamping assembly 1 is arranged inside the mounting rod 1 20, and the clamping assembly 2 is arranged inside the mounting rod 21.

[0030] Specifically, by providing a loading and unloading mechanism, when in use, the height of the movable frame 15 is adjusted as needed and fixed by bolts, the switch of the motor 11 is turned on, and the rotating shaft 16 is rotated to a suitable angle, the electric push rod 17 is adjusted, and the distance between the mounting rod 1 20 and the mounting rod 2 21 is adaptively adjusted, so that the piston rod part of the gas spring is fixed by the clamping component 1, and the electric push rod 17 is turned on again, the position of the piston rod is adjusted, and the gas spring is made vertical by using the motor 11, the electric push rod 17 is adjusted so that the bottom end of the gas spring contacts the plug-in slot 1 4, and the cylinder part is fixed by using the clamping component 2, and the reverse operation can be performed when unloading, which is very convenient and quick, makes its installation position very accurate, and also avoids the gas spring from tilting during testing, making the test results more accurate, and greatly improving the efficiency of loading and unloading.

[0031] In this embodiment, the components of clamping assembly one and clamping assembly two are the same, both including motor two 18, screw rod 25, spring 26, limit frame and fixed seat. Motor two 18 and fixed seat are respectively fixedly mounted on the rear outer wall of mounting rod one 20 and mounting rod two 21. The output end of motor two 18 is fixedly connected to the screw rod 25. The limit frame is movably sleeved on the outside of the screw rod 25. The interior of mounting rod one 20 and mounting rod two 21 are both provided with limit slots. The limit clamp 24 is movably inserted into the interior of the limit slot, and the front end extends to the front side of mounting rod one 20 and mounting rod two 21. The spring 26 is movably sleeved on the outside of the screw rod 25, and the thread directions on both sides of the screw rod 25 are opposite.

[0032] Specifically, the use of clamping assembly 1 and clamping assembly 2 can clamp and fix the cylinder body and piston rod part respectively, which is beneficial to ensure its stable performance during testing and greatly improve the accuracy of the test results.

[0033] The pressurizing mechanism includes a hydraulic push rod 5 and a lifting plate 23. The hydraulic push rod 5 is fixedly mounted on the top of the top plate 6. The output end of the hydraulic push rod 5 is fixedly connected to the lifting plate 23. The installation mechanism includes a bottom block 2, a pressure sensor 3, a plug slot 4, a top block 8, a pressure sensor 9 and a plug slot 10. The bottom block 2 is fixedly mounted on the top of the test bench 1, the pressure sensor 3 is fixedly mounted on the inside of the bottom block 2, the plug slot 4 is fixedly mounted on the top of the bottom block 2, the pressure sensor 9 is fixedly mounted on the inside of the top block 8, the top block 8 is fixedly mounted on the bottom of the lifting plate 23, and the plug slot 2 10 is fixedly mounted on the bottom of the top block 8.

[0034] Specifically, when in use, the hydraulic push rod 5 is opened so that the lifting plate 23 can move up and down for pressure testing. The pressure sensor 1 3 can measure the pressure of the cylinder body, and the pressure sensor 2 9 can measure the pressure of the piston rod, which is convenient for comparing data and makes the data more convincing.

[0035] A support leg 27 is fixedly mounted on the bottom of the test bench 1 , and a foot pad 19 is fixedly mounted on the bottom end of the support leg 27 .

[0036] Specifically, the device has an external power supply that provides electrical energy for the device, and the device has an external controller, which is a PLC board. The controller is electrically connected to motor 11, hydraulic push rod 5, motor 2 18, electric push rod 17, pressure sensor 1 3 and pressure sensor 2 9.

[0037] A measuring ruler 12 is fixedly mounted on the top of the test bench 1 , and a pointer 13 is fixedly mounted on one side of the lifting plate 23 . The pointer 13 is slidably connected to the front surface of the measuring ruler 12 .

[0038] Specifically, during use, the contraction length of the gas spring can be measured by the initial and final positions of the pointer 13, making the measurement data of the gas spring more comprehensive and reliable.

[0039] In summary, compared with the existing technology, the gas spring has at least the following beneficial effects: by providing a loading and unloading mechanism, when in use, the height of the movable frame 15 is adjusted as needed and fixed by bolts, the switch of the motor 11 is turned on, and the rotating shaft 16 is rotated to a suitable angle, the electric push rod 17 is adjusted, and the distance between the mounting rod 1 20 and the mounting rod 2 21 is adaptively adjusted, so that the piston rod part of the gas spring is fixed by the clamping component 1, and the electric push rod 17 is turned on again, the position of the piston rod is adjusted, and the gas spring is made vertical by using the motor 11, the electric push rod 17 is adjusted so that the bottom end of the gas spring contacts the plug-in slot 1 4, and the cylinder part is fixed by using the clamping component 2, and the reverse operation can be performed when unloading, which is very convenient and quick, so that the installation position is very accurate, and the gas spring is avoided from tilting during testing, so that the test results are more accurate, and the efficiency of loading and unloading is greatly improved.

[0040] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A gas spring pressure testing machine, characterized in that, include: A test bench (1), wherein the top of the test bench (1) is provided with a mounting mechanism and a column (7), the top of the column (7) is fixedly provided with a top plate (6), the top of the top plate (6) is provided with a pressurizing mechanism, and the outer side of the column (7) is provided with a loading and unloading mechanism, and the loading and unloading mechanism comprises a moving frame (15), a limiting bolt (14), a motor (11), a rotating shaft (16), an electric push rod (17), a mounting rod (20), a mounting rod (21), a clamping assembly (1) and a clamping assembly (2), the moving frame (15) is movably sleeved on the outer side of the column (7) and is fixed by the limiting bolt (14), the motor (1) 11) is fixedly mounted on one side outer wall of the movable frame (15) on one side, the rotating shaft (16) is fixedly mounted on both side outer walls of the mounting rod 2 (21), the other end of the rotating shaft (16) on one side is fixedly connected to the output end of the motor 1 (11), and the other end of the rotating shaft (16) on the other side is movably plugged into the inside of the movable frame (15) on the other side, the electric push rod (17) is fixedly mounted on the bottom of the mounting rod 2 (21), the output end of the electric push rod (17) is fixedly connected to the mounting rod 1 (20), the clamping assembly 1 is arranged inside the mounting rod 1 (20), and the clamping assembly 2 is arranged inside the mounting rod 2 (21).

2. A gas spring pressure testing machine according to claim 1, characterized in that: The components of the clamping assembly 1 and the clamping assembly 2 are the same, both including a motor 2 (18), a screw rod (25), a spring (26), a limit frame and a fixed seat. The motor 2 (18) and the fixed seat are fixedly mounted on the rear outer wall of the mounting rod 1 (20) and the mounting rod 2 (21), respectively. The output end of the motor 2 (18) is fixedly connected to the screw rod (25), and the limit frame is movably sleeved on the outside of the screw rod (25).

3. A gas spring pressure testing machine according to claim 2, characterized in that: The interior of the mounting rod 1 (20) and the mounting rod 2 (21) are both provided with a limiting sliding groove, the limiting clamp (24) is movably inserted into the interior of the limiting sliding groove, and the front end extends to the front side of the mounting rod 1 (20) and the mounting rod 2 (21), the spring (26) is movably sleeved on the outside of the screw rod (25), and the threads on both sides of the screw rod (25) are in opposite directions.

4. A gas spring pressure testing machine according to claim 3, characterized in that: The pressurizing mechanism comprises a hydraulic push rod (5) and a lifting plate (23), wherein the hydraulic push rod (5) is fixedly mounted on the top of the top plate (6), and the output end of the hydraulic push rod (5) is fixedly connected to the lifting plate (23).

5. A gas spring (26) pressure testing machine according to claim 1, characterized in that: A support leg (27) is fixedly mounted on the bottom of the test bench (1), and a foot pad (19) is fixedly mounted on the bottom end of the support leg (27).

6. A gas spring pressure testing machine according to claim 4, characterized in that: A measuring ruler (12) is fixedly mounted on the top of the test bench (1), and a pointer (13) is fixedly mounted on one side of the lifting plate (23). The pointer (13) is slidably connected to the front surface of the measuring ruler (12).

7. A gas spring pressure testing machine according to claim 1, characterized in that: The mounting mechanism comprises a bottom block (2), a pressure sensor 1 (3), a plug slot 1 (4), a top block (8), a pressure sensor 2 (9) and a plug slot 2 (10), wherein the bottom block (2) is fixedly mounted on the top of the test bench (1), the pressure sensor 1 (3) is fixedly mounted inside the bottom block (2), the plug slot 1 (4) is fixedly mounted on the top of the bottom block (2), the pressure sensor 2 (9) is fixedly mounted inside the top block (8), the top block (8) is fixedly mounted on the bottom of the lifting plate (23), and the plug slot 2 (10) is fixedly mounted on the bottom of the top block (8).

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