Torque measuring machine for pneumatic actuator

Abstract

The utility model provides a torque measuring machine for a pneumatic actuator, which relates to the technical field of pneumatic actuators and comprises a main board, first clamping plates are arranged on two sides of the top end of the main board, a support is arranged at the bottom end of the main board, and a driving structure used for driving the two first clamping plates to move oppositely is arranged in the support. Through operation of a motor, a two-way screw rod can be driven to rotate, so that two moving plates move oppositely under limiting of a limiting column, two first clamping plates can be driven to move oppositely, on one hand, a pneumatic actuator placed on a main plate can be clamped and fixed, and on the other hand, through synchronous operation of the two first clamping plates, the pneumatic actuator can be clamped and fixed. When the pneumatic actuator is clamped and fixed, the left-right position of the pneumatic actuator can be automatically moved to the center of the main plate, at the moment, through synchronous operation of two telescopic rods, two second clamping plates can be driven to move oppositely, the front-back position of the pneumatic actuator is adjusted, and the pneumatic actuator can be fixed to the center of the main plate.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic actuators, in particular to a pneumatic actuator torque measuring machine. Background Art

[0002] A pneumatic actuator is an actuator that uses air pressure to open, close or adjust valves. It is also called a pneumatic actuator mechanism or a pneumatic device, but it is generally called a pneumatic head. Pneumatic actuators are sometimes equipped with certain auxiliary devices, commonly used valve positioners and handwheel mechanisms. The function of the valve positioner is to use the feedback principle to improve the performance of the actuator so that the actuator can achieve accurate positioning according to the control signal of the controller.

[0003] In the prior art, an existing pneumatic actuator torque measuring machine is generally unable to effectively fix pneumatic actuators of different sizes during use, which easily leads to deviations in measurement results. Even if the pneumatic actuator is fixed, the fixing control method is extremely complicated and has poor practicality. Utility Model Content

[0004] The utility model mainly provides a pneumatic actuator torque measuring machine which can fix pneumatic actuators of different models and has simple fixing operation.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pneumatic actuator torque measuring machine, including a main board, first clamping plates are arranged on both sides of the top of the main board, a bracket is arranged at the bottom end of the main board, a driving structure for driving the two first clamping plates to move toward each other is arranged in the bracket, fixing plates are fixed on both sides of the top of the main board, telescopic rods are installed at the opposite ends of the two fixing plates, and the output ends of the two telescopic rods are fixed to the second clamping plates, the top of the main board is fixed to the frame, a cylinder is installed at the top of the frame, the output end of the cylinder passes through the bottom end of the frame and is fixed to the fixing block, a torque sensor is installed at the bottom end of the fixing block, the output end of the torque sensor is fixed to the installation and disassembly plate, a mounting plate is arranged at the bottom end of the installation and disassembly plate, a clamping sleeve is fixed at the bottom end of the mounting plate, and the mounting plate is fixed to the installation and disassembly plate by bolts, and a display screen is installed at the top of the main board.

[0006] Preferably, the driving structure includes a motor arranged at one end of the bracket, the output end of the motor passes through one end of the bracket and fixes a bidirectional screw, both sides of the outer wall of the bidirectional screw are threadedly connected to a moving plate, both ends of the two moving plates are slidably connected to a limiting column, the top ends of the two moving plates are fixed with a connecting plate, the top ends of the two connecting plates pass through the main board and are respectively fixed to the two first clamping plates, through the operation of the motor, the bidirectional screw can be driven to rotate, so that the two moving plates move toward each other under the limit of the limiting column, thereby driving the two first clamping plates to move toward each other, on the one hand, the pneumatic actuator placed on the main board can be clamped and fixed, on the other hand, through the synchronous operation of the two first clamping plates, when the pneumatic actuator is clamped and fixed, its left and right positions can be automatically moved to the center of the main board.

[0007] Preferably, a movable groove matching the connecting plate is provided at the top of the main board, one end of the bracket fixes the supporting plate, and the motor is installed at the top of the supporting plate. By setting the movable groove, the connecting plate can operate stably, preventing structural errors, and being more practical.

[0008] Preferably, a partition plate is fixed on the inner wall of the bracket, the bidirectional screw and the limit column both pass through the partition plate, the bidirectional screw is rotatably connected to the partition plate, and the limit column is fixed to the partition plate. Through the setting of the partition plate, the bidirectional screw and the limit column can be firmly supported, making the structure of the device more stable.

[0009] Preferably, the end of the bidirectional screw away from the motor is rotatably connected to a rotating shaft, and the rotating shaft is arranged in the bracket and rotatably connected to the bracket. Through the arrangement of the rotating shaft, direct friction between the bidirectional screw and the bracket during rotation is avoided, thereby increasing the service life of the bidirectional screw and making it more practical.

[0010] Preferably, connecting blocks are fixed at the four top corners of the bracket, the tops of the four connecting blocks are fixed to the bottom of the mainboard, and the four bottom corners of the mainboard are fixed with supporting legs. By setting the connecting blocks, the bracket can be stably fixed under the mainboard.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] In the utility model, through the operation of the motor, the bidirectional screw can be driven to rotate, so that the two movable plates move toward each other under the limit of the limit column, thereby driving the two first clamping plates to move toward each other. On the one hand, the pneumatic actuator placed on the main board can be clamped and fixed. On the other hand, through the synchronous operation of the two first clamping plates, when the pneumatic actuator is clamped and fixed, its left and right positions can be automatically moved to the center of the main board. At this time, through the synchronous operation of the two telescopic rods, the two second clamping plates can be driven to move toward each other, and the front and rear positions of the pneumatic actuator can be adjusted, so that the pneumatic actuator can be fixed at the center of the main board, which is convenient for subsequent testing. This method can automatically adjust and fix the position of the pneumatic actuator through the setting of the first clamping plate and the second clamping plate. After the adjustment, only the cylinder needs to be operated to drive the ferrule to be plugged into the output end of the pneumatic actuator. Through the operation of the pneumatic actuator, the torque sensor can measure it. Compared with the traditional control and adjustment of each component, this method is faster, more convenient and more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A three-dimensional diagram of a pneumatic actuator torque measuring machine is proposed for the utility model;

[0014] Figure 2 A front view of a pneumatic actuator torque measuring machine is provided for the utility model;

[0015] Figure 3 A cross-sectional view of a pneumatic actuator torque measuring machine is provided for the utility model;

[0016] Figure 4 The utility model provides a driving structure schematic diagram of a pneumatic actuator torque measuring machine.

[0017] Legend: 1. Main board; 2. First clamping plate; 3. Bracket; 4. Connecting block; 5. Driving structure; 501. Motor; 502. Bidirectional screw; 503. Moving plate; 504. Limiting column; 505. Connecting plate; 6. Moving groove; 7. Partition plate; 8. Support plate; 9. Rotating shaft; 10. Fixed plate; 11. Telescopic rod; 12. Second clamping plate; 13. Frame; 14. Cylinder; 15. Fixed block; 16. Torque sensor; 17. Installation plate; 18. Mounting plate; 19. Clamping sleeve; 20. Bolt; 21. Leg; 22. Display screen. DETAILED DESCRIPTION

[0018] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0020] See also Figure 1-Figure 4 The utility model provides a technical solution: a pneumatic actuator torque measuring machine, comprising a main board 1, first clamping plates 2 are arranged on both sides of the top of the main board 1, a bracket 3 is arranged at the bottom of the main board 1, a driving structure 5 for driving the two first clamping plates 2 to move toward each other is arranged in the bracket 3, fixing plates 10 are fixed on both sides of the top of the main board 1, telescopic rods 11 are installed at the opposite ends of the two fixing plates 10, and second clamping plates 12 are fixed at the output ends of the two telescopic rods 11, a frame 13 is fixed at the top of the main board 1, a cylinder 14 is installed at the top of the frame 13, the output end of the cylinder 14 passes through the bottom end of the frame 13 and is fixed to a fixing block 15, a torque sensor 16 is installed at the bottom end of the fixing block 15, and the output end of the torque sensor 16 is fixed to a mounting plate 17, a mounting plate 18 is arranged at the bottom end of the mounting plate 17, a sleeve 19 is fixed at the bottom end of the mounting plate 18, and the mounting plate 18 is fixed to the mounting plate 17 by bolts 20, and a display screen 22 is installed at the top of the main board 1.

[0021] like Figure 1-4 As shown, the driving structure 5 includes a motor 501 arranged at one end of the bracket 3, the output end of the motor 501 passes through one end of the bracket 3 and fixes a bidirectional screw 502, the outer walls of the bidirectional screw 502 are threadedly connected to a moving plate 503 on both sides, the two ends of the two moving plates 503 are slidably connected to a limiting column 504, the top ends of the two moving plates 503 are fixed with a connecting plate 505, the top ends of the two connecting plates 505 pass through the main board 1 and are respectively fixed to the two first clamping plates 2, through the operation of the motor 501, the bidirectional screw 502 can be driven to rotate, so that the two moving plates 503 move toward each other under the limit of the limiting column 504, thereby driving the two first clamping plates 2 to move toward each other, on the one hand, the pneumatic actuator placed on the main board 1 can be clamped and fixed, on the other hand, through the synchronous operation of the two first clamping plates 2, when the pneumatic actuator is clamped and fixed, its left and right positions can be automatically moved to the center of the main board 1.

[0022] like Figure 1-4 As shown, a movable groove 6 matching the connecting plate 505 is provided at the top of the main board 1, one end of the bracket 3 is fixed to the supporting plate 8, and the motor 501 is installed at the top of the supporting plate 8. Through the setting of the movable groove 6, the connecting plate 505 can operate stably, preventing structural errors, and being more practical.

[0023] like Figure 1-4As shown, a partition plate 7 is fixed on the inner wall of the bracket 3, and the bidirectional screw 502 and the limiting column 504 both penetrate the partition plate 7. The bidirectional screw 502 is rotatably connected to the partition plate 7, and the limiting column 504 is fixed to the partition plate 7. Through the setting of the partition plate 7, the bidirectional screw 502 and the limiting column 504 can be stably supported, making the structure of the device more stable.

[0024] like Figure 1-4 As shown, one end of the bidirectional screw 502 away from the motor 501 is rotatably connected to the rotating shaft 9. The rotating shaft 9 is arranged in the bracket 3 and is rotatably connected to the bracket 3. Through the arrangement of the rotating shaft 9, the direct friction between the bidirectional screw 502 and the bracket 3 during rotation is avoided, thereby improving the service life of the bidirectional screw 502 and making it more practical.

[0025] like Figure 1-4 As shown, the four corners of the top of the bracket 3 are fixed with connecting blocks 4, the tops of the four connecting blocks 4 are fixed to the bottom of the mainboard 1, and the four corners of the bottom of the mainboard 1 are fixed with supporting legs 21. Through the setting of the connecting blocks 4, the bracket 3 can be stably fixed under the mainboard 1.

[0026] The method of using the device and the working principle: When the device is used, the pneumatic actuator is first placed on the surface of the main board 1, and the operation is controlled by the display screen 22. The operation of the motor 501 can drive the bidirectional screw 502 to rotate, so that the two moving plates 503 move toward each other under the limit of the limit column 504, thereby driving the two first clamping plates 2 to move toward each other. On the one hand, the pneumatic actuator placed on the main board 1 can be clamped and fixed. On the other hand, through the synchronous operation of the two first clamping plates 2, when the pneumatic actuator is clamped and fixed, its left and right positions can be automatically adjusted. The pneumatic actuator is moved to the center of the main board 1. At this time, the two second clamping plates 12 can be driven to move toward each other through the synchronous operation of the two telescopic rods 11, and the front and rear positions of the pneumatic actuator are adjusted so that the pneumatic actuator can be fixed at the center of the main board 1. After the adjustment, only the cylinder 14 needs to be operated to drive the ferrule 19 to be plugged into the output end of the pneumatic actuator. Through the operation of the pneumatic actuator, the torque sensor 16 can measure it. In addition, the device can replace the ferrule 19 that matches it at any time according to the different output ends of the pneumatic actuator through the setting of the bolt 20.

[0027] The wiring diagram of the motor 501, telescopic rod 11, cylinder 14, torque sensor 16 and display screen 22 in the present invention is common knowledge in the art, and its working principle is a well-known technology. The model is selected according to the actual use. Therefore, the control method and wiring arrangement of the motor 501, telescopic rod 11, cylinder 14, torque sensor 16 and display screen 22 are not explained in detail.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A pneumatic actuator torque measuring machine, comprising a main board (1), characterized in that: First clamping plates (2) are arranged on both sides of the top of the main board (1), a bracket (3) is arranged on the bottom of the main board (1), a driving structure (5) for driving the two first clamping plates (2) to move towards each other is arranged in the bracket (3), fixing plates (10) are fixed on both sides of the top of the main board (1), telescopic rods (11) are installed at opposite ends of the two fixing plates (10), second clamping plates (12) are fixed at the output ends of the two telescopic rods (11), a frame (13) is fixed on the top of the main board (1), and the top of the frame (13) is fixed with a second clamping plate (12). A cylinder (14) is installed at the end, the output end of the cylinder (14) passes through the bottom end of the frame (13) and is fixed to a fixing block (15), the bottom end of the fixing block (15) is installed with a torque sensor (16), the output end of the torque sensor (16) is fixed to a mounting plate (17), the bottom end of the mounting plate (17) is provided with a mounting plate (18), the bottom end of the mounting plate (18) is fixed with a sleeve (19), and the mounting plate (18) is fixed to the mounting plate (17) by bolts (20), and a display screen (22) is installed at the top end of the main board (1).

2. A pneumatic actuator torque measuring machine according to claim 1, characterized in that: The driving structure (5) comprises a motor (501) arranged at one end of the bracket (3); the output end of the motor (501) passes through one end of the bracket (3) and fixes a bidirectional screw (502); both sides of the outer wall of the bidirectional screw (502) are threadedly connected to a movable plate (503); both ends of the two movable plates (503) are slidably connected to limit columns (504); the top ends of the two movable plates (503) are fixed with a connecting plate (505); the top ends of the two connecting plates (505) pass through the main board (1) and are respectively fixed to the two first clamping plates (2).

3. A pneumatic actuator torque measuring machine according to claim 2, characterized in that: A movable groove (6) matching the connecting plate (505) is provided at the top of the main board (1); one end of the bracket (3) is fixed to a supporting plate (8); and the motor (501) is mounted on the top of the supporting plate (8).

4. A pneumatic actuator torque measuring machine according to claim 2, characterized in that: A partition plate (7) is fixed on the inner wall of the bracket (3), the bidirectional screw (502) and the limiting column (504) both penetrate the partition plate (7), the bidirectional screw (502) is rotatably connected to the partition plate (7), and the limiting column (504) is fixed to the partition plate (7).

5. The pneumatic actuator torque measuring machine according to claim 2, characterized in that: One end of the bidirectional screw (502) away from the motor (501) is rotatably connected to a rotating shaft (9), and the rotating shaft (9) is disposed in the bracket (3) and is rotatably connected to the bracket (3).

6. The pneumatic actuator torque measuring machine according to claim 1, characterized in that: The four corners of the top of the bracket (3) are all fixed with connecting blocks (4), the tops of the four connecting blocks (4) are all fixed with the bottom of the main board (1), and the four corners of the bottom of the main board (1) are all fixed with supporting legs (21).

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