Test bench for pneumatic actuator processing

Abstract

The utility model discloses a pneumatic actuator processing testboard, which comprises a table board and a rotating disk rotatably connected to the top of the table board, the rotating disk is connected with a motor used for driving the rotating disk to rotate, a placing groove is connected with a positioning mechanism used for positioning an actuator main body, the positioning mechanism comprises a pressing plate, a connecting column, a spring and a wedge-shaped block, and the pressing plate is connected with the connecting column. The spring is used for driving the pressing plate to move in the direction close to the wedge-shaped block, the table top is connected with an air supply mechanism, the air supply mechanism comprises an air inflation head, an air cylinder, a lifting rod and an air pump, the air exhaust end of the air pump is connected with the air inflation head, and the lifting rod is connected with a pressing disc used for driving the pressing plate to move forwards. According to the utility model, the actuator main body can be positioned and fixed, the stability of the actuator main body is improved, meanwhile, the pressure plate is tightly pressed at the bottom of the placing groove, the rotating plate can be locked and fixed, and the inflation head is pressed at the air inlet, so that the air-tight seal detection operation is convenient, the operation is flexible and convenient, and the efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic actuator processing, in particular to a test bench for pneumatic actuator processing. Background Art

[0002] A pneumatic actuator is a device that uses air pressure to open, close, or regulate valves. It's also known as a pneumatic actuator or pneumatic device, but is more commonly referred to as a pneumatic head. Pneumatic actuators are sometimes equipped with auxiliary devices, most commonly valve positioners and handwheels. The valve positioner utilizes feedback to improve actuator performance, enabling the actuator to achieve accurate positioning according to the controller's control signals. Pneumatic actuators must undergo airtightness testing during manufacturing to ensure safety.

[0003] During the testing process, the pneumatic actuator is usually placed on the testing table, and then the position of the pneumatic actuator is adjusted and fixed with a fixture to ensure that the air inlet on the top is aligned with the inflation head. Finally, the test operation is carried out. When the test is completed, the fixture needs to be loosened, the pneumatic actuator needs to be unloaded, and the above steps need to be repeated for another pneumatic actuator. The operation is relatively cumbersome, time-consuming, labor-intensive, and inefficient. Utility Model Content

[0004] The purpose of the present invention is to provide a test bench for pneumatic actuator processing, which has the advantages of convenient airtightness detection operation, flexible and convenient operation, and high efficiency, and solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a test bench for pneumatic actuator processing, comprising a table top and a rotating disk rotatably connected to the top of the table top, the rotating disk being connected to a motor for driving the rotating disk to rotate, and a plurality of placement slots being provided on the top of the rotating disk, the placement slots being connected to a positioning mechanism for positioning the actuator body, the positioning mechanism comprising a pressure plate, a connecting column, a spring, and a wedge block, the two ends of the connecting column being connected to the pressure plate and the wedge block, the spring being used to drive the pressure plate to move toward the direction close to the wedge block, the table top being connected to an air supply mechanism, the air supply mechanism comprising an inflation head, a cylinder, a lifting rod, and an air pump, the exhaust end of the air pump being connected to the inflation head, the cylinder being used to drive the lifting rod and the inflation head to rise and fall synchronously, and the lifting rod being connected to a pressure plate for driving the pressure plate forward.

[0006] Preferably, the positioning mechanism further includes a rubber pad, the rubber pad is connected to the side of the pressing plate, and the pressing plate is slidably connected to the placement groove.

[0007] Preferably, the spring is sleeved on the connecting column, and both ends of the spring are connected to the pressure plate and the rotating disk.

[0008] Preferably, the air supply mechanism also includes an air hose, an annular groove, a sealing ring, and a connecting port. The exhaust end of the air pump is connected to one end of the air hose, and the other end of the air hose is connected to the inflation head. The annular groove and the connecting port are arranged on the inflation head, and the sealing ring is connected to the annular groove.

[0009] Preferably, the connecting port is provided with a sealing surface, and the sealing surface matches the inner side surface of the air inlet.

[0010] Preferably, a U-shaped frame is connected to the top of the table, and the air pump and the air cylinder are connected to the top of the U-shaped frame.

[0011] Preferably, the power output end of the cylinder is connected to the lifting rod, and the inflation head is fixed to the end of the lifting rod.

[0012] Preferably, the lifting rod is connected to a connecting plate, the end of the connecting plate is connected to the pressure plate, and the connecting plate is connected to a guide rod, and the guide rod runs through the U-shaped frame.

[0013] Preferably, a groove is provided at the top center of the rotating disk, a friction surface is provided at the bottom of the groove, and the wedge block is located in the groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention is equipped with a positioning mechanism and an air supply mechanism, which can place multiple actuator bodies in corresponding placement slots. The motor can drive the rotating disk to rotate, and can synchronously drive multiple actuator bodies to rotate. Then the cylinder drives the lifting rod and the inflation head to move downward, and then drives the connecting plate and the pressure plate to move downward, so that the pressure plate is pressed on the wedge block. The movement of the wedge block can drive the pressure plate forward until the pressure plate is pressed against the actuator body, which can realize the positioning and fixation of the actuator body and improve the stability of the actuator body. At the same time, the pressure plate is pressed against the bottom of the placement slot, which can realize the locking and fixation of the rotating disk, and the inflation head is pressed against the air inlet, which is convenient for airtightness detection operations, flexible and convenient operation, and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front perspective view of the present utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure between the air supply mechanism and the U-shaped frame of the utility model;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a schematic diagram of the rotating disk structure of the utility model;

[0019] Figure 5This is a schematic diagram of the connection structure between the pressing plate and the placement slot of the utility model;

[0020] Figure 6 This is a schematic diagram of the internal structure of the groove of the present utility model.

[0021] In the figure: 1. Table; 2. U-shaped frame; 3. Air pump; 4. Air hose; 5. Inflating head; 6. Air inlet; 7. Actuator body; 8. Rotating disk; 9. Placement groove; 10. Pressure plate; 11. Connecting plate; 12. Guide rod; 13. Cylinder; 14. Lifting rod; 15. Motor; 16. Annular groove; 17. Sealing ring; 18. Connecting port; 19. Groove; 20. Rubber pad; 21. Pressure plate; 22. Connecting column; 23. Spring; 24. Wedge block; 25. Friction surface. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1 to 6The present invention provides a test bench for processing pneumatic actuators, comprising a table 1 and a rotating disk 8 rotatably connected to the top of the table 1. The rotating disk 8 is connected to a motor 15 for driving the rotating disk 8 to rotate. The motor 15 can drive the rotating disk 8 to rotate, thereby rotating multiple actuator bodies 7, so that the actuator bodies 7 wait for airtightness testing in sequence. There is no need to manually adjust the position of the actuator bodies 7, which saves time and effort and is highly efficient. In addition, a plurality of placement slots 9 are provided on the top of the rotating disk 8. The placement slots 9 can initially limit the position of the actuator bodies 7. In combination with the use of a pressure plate 21, the actuator bodies 7 can be positioned and fixed, so that the air inlet 6 and the inflation head 5 are precisely aligned. The placement slot 9 is connected to a positioning mechanism for positioning the actuator body 7. The positioning mechanism includes a pressure plate 21, a connecting column 22, a spring 23, and a wedge block 24. Both ends of the connecting column 22 are connected to the pressure plate 21 and the wedge block 24. The spring 23 is used to drive the pressure plate 21 to move in the direction close to the wedge block 24. When the pressure plate 10 presses on the wedge block 24, the pressure plate 10 and the inclined surface of the wedge block 24 slide relative to each other, which can drive the wedge block 24 forward, and synchronously drive the connecting column 22 and the pressure plate 21 forward until the pressure plate 21 stops moving when it is pressed tightly against the actuator body 7. At this time, the spring 23 is in an elongated state; when the actuator body 7 needs to be loosened, the pressure plate 10 is separated from the wedge block 24, and the elongated spring 23 drives the pressure plate 21 to return, so that the pressure plate 21 is separated from the actuator body 7, thereby quickly loosening the actuator body 7 and facilitating unloading operations. The table top 1 is connected to an air supply mechanism, which includes an inflation head 5, a cylinder 13, a lifting rod 14, and an air pump 3. The exhaust end of the air pump 3 is connected to the inflation head 5. The cylinder 13 is used to drive the lifting rod 14 and the inflation head 5 to rise and fall synchronously. The lifting rod 14 is connected to a pressure plate 10 for driving the pressure plate 21 forward.

[0024] The cylinder 13 can simultaneously drive the lifting rod 14 and the inflation head 5 to rise and fall. The lifting rod 14 drives the movement of the connecting plate 11 and the pressure plate 10. During testing, the inflation head 5 moves downward, and the pressure plate 10 also moves downward synchronously. The pressure plate 10 presses on the wedge block 24, which can drive the movement of the wedge block 24, and in turn, the movement of the pressure plate 21. When the pressure plate 21 is pressed against the actuator body 7, the actuator body 7 can be positioned and fixed. The pressure plate 10 presses against the bottom of the groove 19 to fix the rotating disk 8 and prevent it from loosening and rotating. Furthermore, the inflation head 5 is pressed against the air inlet 6, facilitating the airtightness test of the pneumatic actuator.

[0025] The positioning mechanism also includes a rubber pad 20, which is connected to the side of the pressure plate 21. The pressure plate 21 is slidably connected to the placement groove 9, which can improve the stability of the reciprocating movement of the pressure plate 21, and the rubber pad 20 can prevent the pressure plate 21 from causing wear on the surface of the actuator body 7.

[0026] The spring 23 is sleeved on the connecting column 22 , and both ends of the spring 23 are connected to the pressing plate 21 and the rotating disk 8 .

[0027] The air supply mechanism also includes an air hose 4, an annular groove 16, a sealing ring 17, and a connecting port 18. The exhaust end of the air pump 3 is connected to one end of the air hose 4, and the other end of the air hose 4 is connected to the inflation head 5. The annular groove 16 and the connecting port 18 are provided on the inflation head 5, and the sealing ring 17 is connected to the annular groove 16. When the inflation head 5 is docked with the air inlet 6, the connecting port 18 is pressed tightly against the inner side of the air inlet 6. Combined with the use of the sealing ring 17, a double sealing effect is achieved, preventing leakage during the inflation process and facilitating inspection operations.

[0028] The connection port 18 is provided with a sealing surface, which matches the inner side surface of the air inlet 6 , and the cross section of the sealing surface is inclined.

[0029] The top of the table top 1 is connected to a U-shaped frame 2 , and the air pump 3 and the air cylinder 13 are connected to the top of the U-shaped frame 2 . The U-shaped frame 2 provides good support for the air pump 3 and the air cylinder 13 .

[0030] The power output end of the cylinder 13 is connected to the lifting rod 14 , and the inflation head 5 is fixed to the end of the lifting rod 14 .

[0031] The lifting rod 14 is connected to a connecting plate 11, the end of the connecting plate 11 is connected to the pressure plate 10, and the connecting plate 11 is connected to a guide rod 12, which runs through the U-shaped frame 2. During the lifting process of the connecting plate 11, the guide rod 12 can be driven to move synchronously, so that the inflation head 5 and the pressure plate 10 can move stably, thereby achieving a good guiding purpose.

[0032] A groove 19 is provided at the top center of the rotating disk 8, and a friction surface 25 is provided at the bottom of the groove 19. The wedge block 24 is located in the groove 19. The friction surface 25 can increase the contact friction with the bottom of the pressure plate 10 to prevent the rotating disk 8 from rotating loose.

[0033] Working principle: Place multiple actuator bodies 7 in the corresponding placement slots 9 to achieve preliminary positioning. The motor 15 drives the rotating disk 8 to rotate a certain angle so that the air inlet 6 is in a suitable position. Then the cylinder 13 drives the lifting rod 14, the inflation head 5, the connecting plate 11, and the pressure plate 10 to move downward synchronously. The pressure plate 10 presses on the wedge block 24, which can drive the wedge block 24, the connecting column 22, and the pressure plate 21 to move forward synchronously. The spring 23 is gradually stretched until the pressure plate 21 is pressed against the actuator body 7, which can lock the actuator body 7 and improve its stability. The pressure plate 10 is pressed against the bottom of the placement slot 9 to prevent the rotating disk 8 from loosening and rotating. At this time, the motor 15 is in a stopped state. Furthermore, the inflation head 5 is pressed against the air inlet 6. In combination with the use of the air pump 3 and the air hose 4, it is convenient to perform inspection operations on the actuator body 7. When the inspection of the actuator body 7 is completed, the cylinder 13 drives the lifting rod 14, the inflation head 5, the connecting plate 11, and the pressure plate 10 to move upward synchronously, so that the pressure plate 10 is separated from the wedge block 24, and the stretched spring 23 drives the pressure plate 21 to return to its original position, thereby loosening the actuator body 7, and the inflation head 5 is synchronously separated from the air inlet 6. The motor 15 drives the rotating disk 8 to rotate again, and the airtightness inspection operation is performed on the next actuator body 7. The operation saves time and effort and is highly efficient.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A test bench for pneumatic actuator processing, characterized in that: The invention comprises a table (1) and a rotating disk (8) rotatably connected to the top of the table (1), wherein the rotating disk (8) is connected to a motor (15) for driving the rotating disk (8) to rotate, and a plurality of placement slots (9) are provided on the top of the rotating disk (8), wherein the placement slots (9) are connected to a positioning mechanism for positioning the actuator body (7), wherein the positioning mechanism comprises a pressure plate (21), a connecting column (22), a spring (23), and a wedge block (24), wherein both ends of the connecting column (22) are connected to the pressure plate (21), the wedge block (24), and the spring (23) and the wedge block (24) are connected to each other. 4), the spring (23) is used to drive the pressure plate (21) to move in a direction close to the wedge block (24), the table (1) is connected to an air supply mechanism, the air supply mechanism includes an air charging head (5), a cylinder (13), a lifting rod (14), and an air pump (3), the exhaust end of the air pump (3) is connected to the air charging head (5), the cylinder (13) is used to drive the lifting rod (14) and the air charging head (5) to rise and fall synchronously, and the lifting rod (14) is connected to a pressure plate (10) for driving the pressure plate (21) to move forward.

2. A pneumatic actuator processing test bench according to claim 1, characterized in that: The positioning mechanism further comprises a rubber pad (20), wherein the rubber pad (20) is connected to the side of the pressing plate (21), and the pressing plate (21) is slidably connected to the placement groove (9).

3. A pneumatic actuator processing test bench according to claim 2, characterized in that: The spring (23) is sleeved on the connecting column (22), and both ends of the spring (23) are connected to the pressing plate (21) and the rotating disk (8).

4. A pneumatic actuator processing test bench according to claim 1, characterized in that: The air supply mechanism further comprises an air delivery hose (4), an annular groove (16), a sealing ring (17), and a connecting port (18); the exhaust end of the air pump (3) is connected to one end of the air delivery hose (4); the other end of the air delivery hose (4) is connected to the inflation head (5); the annular groove (16) and the connecting port (18) are provided on the inflation head (5); and the sealing ring (17) is connected to the annular groove (16).

5. A pneumatic actuator processing test bench according to claim 4, characterized in that: The connecting port (18) is provided with a sealing surface, and the sealing surface matches the inner side surface of the air inlet (6).

6. The pneumatic actuator processing test bench according to claim 1, characterized in that: The top of the tabletop (1) is connected to a U-shaped frame (2), and the air pump (3) and the air cylinder (13) are connected to the top of the U-shaped frame (2).

7. The pneumatic actuator processing test bench according to claim 1, characterized in that: The power output end of the cylinder (13) is connected to the lifting rod (14), and the inflation head (5) is fixed to the end of the lifting rod (14).

8. The pneumatic actuator processing test bench according to claim 6, characterized in that: The lifting rod (14) is connected to a connecting plate (11), the end of the connecting plate (11) is connected to the pressure plate (10), and the connecting plate (11) is connected to a guide rod (12), and the guide rod (12) passes through the U-shaped frame (2).

9. The pneumatic actuator processing test bench according to claim 1, characterized in that: A groove (19) is provided at the top center of the rotating disk (8), a friction surface (25) is provided at the bottom of the groove (19), and the wedge block (24) is located in the groove (19).

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