Screw plug torsion tester

Abstract

The utility model discloses a screw plug torsion tester, which comprises an operating platform, a second connecting plate arranged at one end of the top of the operating platform, a lifting mechanism arranged at the top of the operating platform and used for lifting the second connecting plate, a third connecting plate fixed in the middle of the side wall of the second connecting plate, and a circular plate arranged at the bottom of one end of the third connecting plate. A rotating mechanism used for rotating the circular plate is arranged at the top of the third connecting plate, a concentric-square-shaped base is fixed to the middle of the bottom of the circular plate, a communicating cylinder is arranged at the bottom of the concentric-square-shaped base, and a clamping groove is formed in the bottom of the communicating cylinder. The moving mechanism is matched with the two first connecting plates to drive the four triangular blocks to be close to each other pairwise, plug screws of different specifications can be clamped, the communicating cylinder can be rapidly replaced in cooperation with the design of the clamping mechanism, the replaced clamping grooves are matched with different plug screws and nuts, and the replacement efficiency is improved. In this way, the same device can be suitable for screw plugs of various different specifications, the replacement cost is reduced, and the flexibility and practicability of the device are improved.

Description

Technical Field

[0001] This utility model relates to the field of screw plug testing technology, and in particular to a screw plug torque tester. Background Technology

[0002] A screw plug is a mechanical part primarily used for sealing and fixing. It is typically made of metal or plastic and is commonly found in pipes, valves, and other equipment to prevent liquid or gas leakage. In modern industrial production, screw plugs are widely used as crucial connecting and sealing components in various fields such as machinery, automobiles, and aerospace. The tightening quality of screw plugs directly affects the safety and service life of equipment. During the manufacturing process, the torque of screw plugs usually needs to be tested, thus requiring a screw plug torque tester.

[0003] Most traditional screw plug torque testers are designed to be used only for screw plugs of a specific size. When different sizes or types of screw plugs need to be tested during the production process, operators usually have to change to different testing equipment, which increases the investment cost of the equipment and reduces the flexibility and practicality of the equipment. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a screw torque tester.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A screw plug torque tester includes an operating table. A second connecting plate is mounted on one end of the top of the operating table. A lifting mechanism for raising and lowering the second connecting plate is mounted on the top of the operating table. A third connecting plate is fixed to the middle of the side wall of the second connecting plate. A circular plate is mounted on the bottom of one end of the third connecting plate. A rotating mechanism for rotating the circular plate is mounted on the top of the third connecting plate. A U-shaped seat is fixed to the middle of the bottom of the circular plate. A connecting cylinder is mounted on the bottom of the U-shaped seat. A slot is formed at the bottom of the connecting cylinder. A locking mechanism for fixing the connecting cylinder is mounted on the inner side wall of the U-shaped seat. The other end of the top of the operating table... The device is equipped with two first connecting plates, each with two symmetrically arranged triangular blocks on its inner sidewall. A moving mechanism is located on the top of the operating table to move the two first connecting plates. During use, the moving mechanism, in conjunction with the two first connecting plates, drives the four triangular blocks to move closer together in pairs, enabling the clamping of different sizes of screw plugs. Combined with the snap-fit ​​mechanism, the connecting cylinder can be quickly replaced. The replaced slots are compatible with different screw plugs and nuts, allowing the same device to be used with various screw plug sizes, reducing replacement costs and improving the flexibility and practicality of the equipment.

[0007] Preferably, the moving mechanism includes four support plates, which are symmetrically fixed to the top of the operating table in pairs. The inner sidewalls of each pair of support plates are rotatably connected to the same bidirectional lead screw, with one end of each bidirectional lead screw penetrating the outer sidewalls of two support plates. Two first lead screw nuts are symmetrically fitted onto the sidewalls of each bidirectional lead screw, and the four first lead screw nuts are paired with the two bidirectional lead screws. The four first lead screw nuts are fixed to the ends of two first connecting plates. A synchronous pulley is fitted onto one end of each bidirectional lead screw. A synchronous belt is provided on the top of the operating table, with both ends fitted onto the sidewalls of two synchronous pulleys. A first motor is fixed to the outer sidewall of one of the support plates, and the output shaft of the first motor is fixed to one of the bidirectional lead screws. The first motor drives one of the bidirectional lead screws to rotate, which, in conjunction with the synchronous belt and the two synchronous pulleys, drives the other bidirectional lead screw to rotate simultaneously. The simultaneous rotation of the two bidirectional lead screws, in conjunction with the four first lead screw nuts, causes the two first connecting plates to move closer together, thereby causing the four triangular blocks to move closer together in pairs, clamping and fixing the screw plug.

[0008] Preferably, the lifting mechanism includes two slide rods, which are symmetrically fixed to one end of the top of the operating platform. The top ends of the two slide rods are fixed with the same connecting seat. A lead screw is rotatably connected to the bottom center of the connecting seat. The two ends of the second connecting plate are respectively sleeved on the side walls of the two slide rods. An installation hole is opened in the center of the top of the second connecting plate. A second lead screw nut is fixed to the inner side wall of the installation hole. The second lead screw nut is sleeved on the side wall of the lead screw and is compatible with the lead screw. A second motor is fixed to the top of the connecting seat, and the output shaft of the second motor is fixed to the lead screw. The second motor drives the lead screw to rotate, which, in conjunction with the second lead screw nut, drives the second connecting plate to move downward along the direction of the two slide rods. This, in turn, drives the third connecting plate to move downward. The downward movement of the third connecting plate, in conjunction with the circular plate and the U-shaped seat, drives the communicating cylinder to move downward.

[0009] Preferably, the rotating mechanism includes a rotating shaft rotatably connected to one end of the bottom of the third connecting plate. The rotating shaft and the circular plate are fixed together. A torque testing motor is fixed to one end of the top of the third connecting plate, and the output shaft of the torque testing motor is fixed to the rotating shaft. A torque sensor is provided on the top of the third connecting plate to monitor the torque of the output shaft of the torque testing motor. The torque testing motor is driven to rotate in conjunction with the rotating shaft to drive the circular plate and the U-shaped seat to rotate, thereby driving the connecting cylinder to rotate and tightening the nut. At this time, when the torque sensor detects the torque of the output shaft of the torque testing motor, it sends it to the processor. After the processor processes the data, it quantifies the data and displays it on the display screen.

[0010] Preferably, the locking mechanism includes a first magnet fixed to the inner wall of the U-shaped seat. A rectangular block is fixed to the top of the connecting cylinder, and the rectangular block is adapted to the U-shaped seat. A second magnet is fixed to the top of the rectangular block, and the magnetic poles of the second magnet and the first magnet are opposite at their adjacent ends. When different plugs need to be tested, the second magnet and the second lead screw nut are pulled out from inside the U-shaped seat, and the connecting cylinder, the second magnet, and the rectangular block are replaced as a whole. The replaced slot is adapted to the nuts of different plugs. In this way, plugs of different specifications can be tested without replacing the entire device, reducing testing costs and improving the flexibility and practicality of the device.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. During use, the moving mechanism, in conjunction with the two first connecting plates, drives the four triangular blocks to approach each other in pairs, which can clamp screw plugs of different specifications. With the design of the snap-fit ​​mechanism, the connecting cylinder can be quickly replaced. The replacement slot is compatible with different screw plugs and nuts, so the same device can be used for a variety of screw plugs of different specifications, reducing replacement costs and improving the flexibility and practicality of the device.

[0013] 2. The torque sensor can monitor the output torque of the torque test motor in real time and transmit the data to the processor for processing, providing accurate torque value display and ensuring the reliability of the test results. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a screw torque tester proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the moving mechanism of a screw torque tester proposed in this utility model;

[0016] Figure 3 This is a schematic diagram of the lifting mechanism of a screw torque tester proposed in this utility model;

[0017] Figure 4 This is a schematic diagram of the rotating shaft, circular plate, U-shaped seat, and connecting cylinder of a screw plug torque tester proposed in this utility model.

[0018] Figure 5 This is an exploded view of the spiral base, first magnet, second magnet, and rectangular block of a screw plug torque tester proposed in this utility model.

[0019] In the diagram: 1. Operating platform; 2. Support plate; 3. First motor; 4. First lead screw nut; 5. Synchronous pulley; 6. Synchronous belt; 7. First connecting plate; 8. Triangular block; 9. Slide rod; 10. Connecting seat; 11. Bidirectional lead screw; 12. Lead screw; 13. Second motor; 14. Second connecting plate; 15. Second lead screw nut; 16. Third connecting plate; 17. Torque test motor; 18. Rotating shaft; 19. Circular plate; 20. U-shaped seat; 21. Connecting cylinder; 22. Slot; 23. First magnet; 24. Second magnet; 25. Rectangular block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-5 A screw plug torque tester includes an operating table 1. A second connecting plate 14 is mounted on one end of the top of the operating table 1. A lifting mechanism for raising and lowering the second connecting plate 14 is mounted on the top of the operating table 1. A third connecting plate 16 is fixed to the middle of the side wall of the second connecting plate 14. A circular plate 19 is mounted on the bottom of one end of the third connecting plate 16. A rotating mechanism for rotating the circular plate 19 is mounted on the top of the third connecting plate 16. A U-shaped seat 20 is fixed to the middle of the bottom of the circular plate 19. A connecting cylinder 21 is mounted at the bottom of the U-shaped seat 20. A slot 22 is provided at the bottom of the connecting cylinder 21. A locking mechanism for fixing the connecting cylinder 21 is provided on the inner side wall of the U-shaped seat 20. Two first connecting plates 7 are provided at the other end of the top. Two triangular blocks 8 are symmetrically arranged on the inner sidewalls of the two first connecting plates 7. A moving mechanism for moving the two first connecting plates 7 is provided on the top of the operating table 1. During use, the moving mechanism, in conjunction with the two first connecting plates 7, drives the four triangular blocks 8 to move closer to each other in pairs, which can clamp different specifications of screw plugs. With the design of the snap-fit ​​mechanism, the connecting cylinder 21 can be quickly replaced. The replaced slot 22 is compatible with different screw plugs and nuts. This allows the same device to be used for a variety of screw plugs of different specifications, reducing replacement costs and improving the flexibility and practicality of the device.

[0022] Furthermore, the moving mechanism includes four support plates 2, which are symmetrically fixed to the top of the operating table 1 in pairs. The inner sidewalls of every two support plates 2 are rotatably connected to the same bidirectional lead screw 11, and one end of each bidirectional lead screw 11 passes through the outer sidewalls of two support plates 2 respectively. Two first lead screw nuts 4 are symmetrically fitted onto the sidewalls of each of the two bidirectional lead screws 11, and the four first lead screw nuts 4 are paired with the two bidirectional lead screws 11. The four first lead screw nuts 4 are fixed to both ends of the two first connecting plates 7 respectively. A synchronous pulley 5 is fitted onto one end of each of the two bidirectional lead screws 11. A timing belt 6 is installed on the top of the platform 1. The two ends of the timing belt 6 are respectively sleeved on the side walls of two timing pulleys 5. A first motor 3 is fixed on the outer side wall of one of the support plates 2, and the output shaft of the first motor 3 is fixed to one of the bidirectional lead screws 11. The first motor 3 drives one of the bidirectional lead screws 11 to rotate, which in turn drives the other bidirectional lead screw 11 to rotate simultaneously with the timing belt 6 and the two timing pulleys 5. The simultaneous rotation of the two bidirectional lead screws 11, in conjunction with the four first lead screw nuts 4, drives the two first connecting plates 7 to move closer to each other, which in turn drives the four triangular blocks 8 to move closer to each other in pairs, clamping and fixing the screw plug.

[0023] Furthermore, the lifting mechanism includes two slide rods 9, which are symmetrically fixed to one end of the top of the operating platform 1. The top of the two slide rods 9 is fixed with the same connecting seat 10. A lead screw 12 is rotatably connected to the bottom middle of the connecting seat 10. The two ends of the second connecting plate 14 are respectively sleeved on the side walls of the two slide rods 9. An installation hole is opened in the middle of the top of the second connecting plate 14. A second lead screw nut 15 is fixed to the inner side wall of the installation hole. The second lead screw nut 15 is sleeved on the side wall of the lead screw 12 and is compatible with the lead screw 12. A second motor 13 is fixed to the top of the connecting seat 10, and the output shaft of the second motor 13 is fixed to the lead screw 12. The second motor 13 drives the lead screw 12 to rotate, which, together with the second lead screw nut 15, drives the second connecting plate 14 to move downward along the direction of the two slide rods 9, thereby driving the third connecting plate 16 to move downward. The downward movement of the third connecting plate 16, together with the circular plate 19 and the U-shaped seat 20, drives the connecting cylinder 21 to move downward.

[0024] Furthermore, the rotating mechanism includes a rotating shaft 18, which is rotatably connected to one end of the bottom of the third connecting plate 16. The rotating shaft 18 and the circular plate 19 are fixed. A torque testing motor 17 is fixed to one end of the top of the third connecting plate 16, and the output shaft of the torque testing motor 17 is fixed to the rotating shaft 18. A torque sensor is provided on the top of the third connecting plate 16 to monitor the torque of the output shaft of the torque testing motor 17. The torque testing motor 17 is driven to cooperate with the rotating shaft 18 to drive the circular plate 19 and the U-shaped seat 20 to rotate, thereby driving the connecting cylinder 21 to rotate, thereby tightening the nut. At this time, when the torque sensor detects the torque of the output shaft of the torque testing motor 17, it sends it to the processor. After the processor processes the data, it quantifies the data and displays it on the display screen.

[0025] Furthermore, the locking mechanism includes a first magnet 23, which is fixed to the inner wall of the U-shaped seat 20. A rectangular block 25 is fixed to the top of the connecting cylinder 21, and the rectangular block 25 is adapted to the U-shaped seat 20. A second magnet 24 is fixed to the top of the rectangular block 25, and the magnetic poles of the second magnet 24 and the first magnet 23 are opposite at their adjacent ends. When different plugs need to be tested, the second magnet 24 and the second lead screw nut 15 are pulled out from inside the U-shaped seat 20, and the connecting cylinder 21, the second magnet 24, and the rectangular block 25 are replaced as a whole. The replaced locking groove 22 is adapted to the nuts that are compatible with different plugs. In this way, plugs of different specifications can be tested without replacing the entire device, which reduces the testing cost and improves the flexibility and practicality of the device.

[0026] Working Principle: During use, the plug to be tested is placed between the two first connecting plates 7, and the power switch of the first motor 3 is turned on. The first motor 3 drives one of the bidirectional lead screws 11 to rotate, which, together with the synchronous belt 6 and the two synchronous pulleys 5, drives the other bidirectional lead screw 11 to rotate simultaneously. The simultaneous rotation of the two bidirectional lead screws 11, together with the four first lead screw nuts 4, drives the two first connecting plates 7 to move closer together, which in turn drives the four triangular blocks 8 to move closer together in pairs, clamping and fixing the plug. After fixing, a matching nut is fitted on the side wall of the plug, and the nut fits the slot 22. During testing, the power switch of the second motor 13 is turned on, driving the second motor 13 to rotate the lead screw 12. Together with the second lead screw nut 15, the second connecting plate 14 moves downward along the two sliding rods 9, which in turn drives the third connecting plate 16 to move downward. The downward movement of the third connecting plate 16, together with the circular plate 19, drives the second connecting plate 14 to move downward. The connecting cylinder 21 moves downward along with the retaining wall 20 until the nut enters the slot 22. When the power switch of the torque testing motor 17 is turned on, the motor, in conjunction with the rotating shaft 18, drives the circular plate 19 and the retaining wall 20 to rotate, thereby rotating the connecting cylinder 21 and tightening the nut. At this time, when the torque sensor detects the torque on the output shaft of the torque testing motor 17, it sends the data to the processor. The processor processes the data, quantifies it, and displays it on the screen. When different plugs need to be tested, the second magnet 24 and the second lead screw nut 15 are pulled out from inside the retaining wall 20, and the connecting cylinder 21, the second magnet 24, and the rectangular block 25 are replaced as a whole. The replaced slot 22 is compatible with nuts for different plugs, allowing for testing of plugs of different specifications without replacing the entire device, reducing testing costs and improving the flexibility and practicality of the equipment.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A screw plug torque tester, comprising an operating table (1), characterized in that, The top of the operating table (1) is provided with a second connecting plate (14), and the top of the operating table (1) is provided with a lifting mechanism for raising and lowering the second connecting plate (14). A third connecting plate (16) is fixed in the middle of the side wall of the second connecting plate (14). A circular plate (19) is provided at the bottom of one end of the third connecting plate (16). A rotating mechanism for rotating the circular plate (19) is provided at the top of the third connecting plate (16). A U-shaped seat (20) is fixed in the middle of the bottom of the circular plate (19). A connecting cylinder (21) is provided at the bottom of the U-shaped seat (20). A slot (22) is provided at the bottom of the connecting cylinder (21). A snap-fit ​​mechanism for fixing the connecting cylinder (21) is provided on the inner side wall of the U-shaped seat (20). Two first connecting plates (7) are provided at the other end of the top of the operating table (1). Two triangular blocks (8) are symmetrically provided on the inner side walls of the two first connecting plates (7). A moving mechanism for moving the two first connecting plates (7) is provided at the top of the operating table (1).

2. The screw plug torque tester according to claim 1, characterized in that, The moving mechanism includes four support plates (2), which are symmetrically fixed to the top of the operating table (1) in pairs. The inner sidewalls of each pair of support plates (2) are rotatably connected to the same bidirectional lead screw (11), and one end of each bidirectional lead screw (11) passes through the outer sidewalls of two support plates (2). The sidewalls of each bidirectional lead screw (11) are symmetrically fitted with two first lead screw nuts (4), and the four first lead screw nuts (4) are paired together and adapted to the two bidirectional lead screws (11). The four first lead screw nuts (4) are respectively fixed to the two ends of the two first connecting plates (7).

3. The screw plug torque tester according to claim 2, characterized in that, One end of each of the two bidirectional lead screws (11) is fitted with a synchronous pulley (5). A synchronous belt (6) is provided on the top of the operating table (1). The two ends of the synchronous belt (6) are respectively fitted on the side walls of the two synchronous pulleys (5). A first motor (3) is fixed on the outer side wall of one of the support plates (2), and the output shaft of the first motor (3) is fixed to one of the bidirectional lead screws (11).

4. The screw plug torque tester according to claim 1, characterized in that, The lifting mechanism includes two slide rods (9), which are symmetrically fixed to one end of the top of the operating table (1). The top ends of the two slide rods (9) are fixed with the same connecting seat (10). A lead screw (12) is rotatably connected to the bottom middle of the connecting seat (10). The two ends of the second connecting plate (14) are respectively sleeved on the side walls of the two slide rods (9). An installation hole is opened at the top middle of the second connecting plate (14). A second lead screw nut (15) is fixed to the inner side wall of the installation hole. The second lead screw nut (15) is sleeved on the side wall of the lead screw (12), and the second lead screw nut (15) and the lead screw (12) are compatible. A second motor (13) is fixed to the top of the connecting seat (10), and the output shaft of the second motor (13) is fixed to the lead screw (12).

5. A screw plug torque tester according to claim 1, characterized in that, The rotating mechanism includes a rotating shaft (18), which is rotatably connected to one end of the bottom of the third connecting plate (16). The rotating shaft (18) and the circular plate (19) are fixed. A torque testing motor (17) is fixed to one end of the top of the third connecting plate (16), and the output shaft of the torque testing motor (17) is fixed to the rotating shaft (18). A torque sensor for monitoring the torque of the output shaft of the torque testing motor (17) is provided on the top of the third connecting plate (16).

6. The screw plug torque tester according to claim 1, characterized in that, The snap-fit ​​mechanism includes a first magnet (23), which is fixed on the inner wall of the U-shaped seat (20). A rectangular block (25) is fixed at the top of the connecting cylinder (21), and the rectangular block (25) is adapted to the U-shaped seat (20). A second magnet (24) is fixed at the top of the rectangular block (25), and the magnetic poles of the second magnet (24) and the first magnet (23) are opposite at their adjacent ends.

Images