A test device for a pneumatic actuator

Abstract

The utility model discloses a testing device for a pneumatic actuator, comprising a base plate, the upper surface of the base plate is fixedly connected with a shell, the bottom inner wall of the shell is fixedly connected with a telescopic rod, the top of the telescopic rod is fixedly connected with a carrier plate, the top of the base plate is provided with a support plate, the support plate is connected to the base plate through a driving component, the top of the support plate is provided with a torque tester, and the test end of the torque tester passes through the support plate, and the top of the support plate is provided with a fixing component for limiting the torque tester. The utility model does not require manual docking, is simple to operate, saves time and effort, improves the convenience of using the testing device, can prevent the pneumatic actuator from moving during the test, improves the stability of the testing device, and can facilitate the disassembly and replacement of the torque tester, improving the convenience of disassembly of the torque tester.

Description

Technical Field

[0001] The utility model relates to the technical field of actuators, in particular to a testing device for pneumatic actuators. Background Art

[0002] A pneumatic actuator is an actuator that uses air pressure to open, close or adjust a valve. It is also called a pneumatic actuator or a pneumatic device, but it is more commonly known as a pneumatic head. After production, the pneumatic actuator needs to be tested.

[0003] As disclosed in the patent number CN218674031U, a torque testing mechanism for a pneumatic actuator, the prior art has the problem that after the pneumatic actuator is clamped and fixed, manual position adjustment is required to dock the drive shaft with the torque tester, and the manual docking has a large deviation and requires multiple adjustment operations, which increases the difficulty of the operation, is time-consuming and labor-intensive, and is inconvenient for people to use. In order to solve such problems, the present application proposes a testing device with a new structure. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a testing device for a pneumatic actuator.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A testing device for a pneumatic actuator comprises a base plate, the upper surface of the base plate is fixedly connected to a shell, the bottom inner wall of the shell is fixedly connected to a telescopic rod, the top of the telescopic rod is fixedly connected to a carrier plate, a support plate is provided on the top of the base plate, the support plate is connected to the base plate through a driving component, a torque tester is provided on the top of the support plate, and a testing end of the torque tester passes through the support plate, a fixing component for limiting the torque tester is provided on the top of the support plate, a clamping component for squeezing and fixing the pneumatic actuator is provided on the top of the support plate, and the shape of the shell is an elliptical funnel.

[0007] As a further solution of the utility model, the driving component is a cylinder, the cylinder is fixedly connected to the upper surface of the base plate, and one end of the cylinder pneumatic rod is fixed to the support plate.

[0008] As a further solution of the utility model, the fixing assembly includes a fixing plate, which is fixedly connected to the top of the support plate, a slot is provided on one side of the torque tester, a plug plate is clamped in the slot, and the plug plate passes through the fixing plate, a side of the plug plate away from the torque tester is rotatably connected to a protrusion, a side of the fixing plate away from the torque tester is fixedly connected to a fixing block, a groove is provided on the top of the fixing block, and the protrusion is clamped in the groove.

[0009] As a further solution of the utility model, the clamping assembly includes two positioning columns, the two positioning columns are fixedly connected to the top of the support plate, the two positioning columns are respectively located on both sides of the torque tester, the circumferential outer walls of the two positioning columns are slidably connected with a pressure plate, and the pressure plate passes through the support plate, the top ends of the two positioning columns are fixedly connected with a baffle, the top ends of the two positioning columns are sleeved with a second spring, and the two ends of the second spring are respectively fixed to the pressure plate and the baffle.

[0010] As a further solution of the utility model, two guide rods are fixedly connected to the upper surface of the base plate, and the guide rods pass through the support plate.

[0011] As a further solution of the utility model, a first spring is sleeved on the circumferential outer wall of the telescopic rod, and two ends of the first spring are respectively fixed to the carrier plate and the shell.

[0012] As a further solution of the utility model, a plurality of balls are provided on the upper surface of the carrier plate, and the plurality of balls are evenly distributed.

[0013] The beneficial effects of the utility model are:

[0014] 1. Through the setting of the shell, the clamping assembly will press the pneumatic actuator to move downward. Since the shell is an elliptical funnel, the shell will keep the pneumatic actuator in the center of the shell during the downward movement. At this time, the torque tester can be docked with the driving shaft of the pneumatic actuator on the same vertical line. No manual docking is required, the operation is simple, time and effort are saved, and the convenience of using the test device is improved.

[0015] 2. Through the setting of the clamping assembly, the clamping assembly will squeeze and fix the pneumatic actuator, thereby preventing the pneumatic actuator from moving during the test and improving the stability of the test device.

[0016] 3. By setting the fixing component, the fixing component is used to fix the torque tester, so that there is no need to use screws to fix the torque tester, which facilitates the disassembly and replacement of the torque tester, thereby improving the convenience of disassembly of the torque tester. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front three-dimensional structural schematic diagram of a pneumatic actuator testing device proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the rear three-dimensional structure of a test device for a pneumatic actuator proposed by the utility model;

[0019] Figure 3This is a schematic diagram of the enlarged structure of part A of a testing device for a pneumatic actuator proposed by the utility model.

[0020] In the figure: 1, shell; 2, bottom plate; 3, ball; 4, carrier plate; 5, telescopic rod; 6, first spring; 7, guide rod; 8, cylinder; 9, support plate; 10, slot; 11, torque tester; 12, baffle; 13, second spring; 14, positioning column; 15, pressure plate; 16, fixing plate; 17, plug plate; 18, groove; 19, fixing block; 20, protrusion. DETAILED DESCRIPTION

[0021] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, so that the embodiments of the application described here, based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of this application.

[0022] Reference Figure 1-Figure 3, a testing device for a pneumatic actuator comprises a base plate 2, a shell 1 is fixed to the upper surface of the base plate 2 by bolts, a telescopic rod 5 is fixed to the bottom inner wall of the shell 1 by bolts, a carrier plate 4 is fixed to the top of the telescopic rod 5 by bolts, a support plate 9 is provided on the top of the base plate 2, the support plate 9 is connected to the base plate 2 by a driving component, the driving component is a cylinder 8, the cylinder 8 is fixed to the upper surface of the base plate 2 by bolts, one end of the pneumatic rod of the cylinder 8 is fixed to the support plate 9, a torque tester 11 is provided on the top of the support plate 9, and the test end of the torque tester 11 passes through the support plate 9, the torque tester 11 comprises a fixing fixture, a measuring shaft, a torque sensor and a digital display, and the torque tester 11 is an existing mature technology, so it will not be described in detail here, a fixing component for limiting the torque tester 11 is provided on the top of the support plate 9, a clamping component for squeezing and fixing the pneumatic actuator is provided on the top of the support plate 9, the shape of the shell 1 is an elliptical funnel, and the pneumatic actuator is placed on When the pneumatic actuator is not in the center of the housing 1, the elliptical funnel-shaped housing 1 will cause the pneumatic actuator to move on the carrier plate 4, thereby moving the pneumatic actuator to the center of the housing 1. When the pneumatic actuator moves to the center of the housing 1 and all four corners are in contact with the housing 1, the support plate 9 continues to move downward, while the pneumatic actuator cannot move downward, thereby causing the clamping assembly to squeeze and fix the pneumatic actuator. At this time, the driving shaft of the pneumatic actuator and the test end of the torque tester 11 are on the same vertical line. Therefore, the torque tester 11 can be directly docked with the pneumatic actuator without manual docking. The operation is simple, saving time and effort.

[0023] The clamping assembly includes two positioning columns 14, both of which are welded to the top of the support plate 9, and the two positioning columns 14 are respectively located on both sides of the torque tester 11. The circumferential outer walls of the two positioning columns 14 are slidably connected with a pressure plate 15, and the pressure plate 15 passes through the support plate 9. The tops of the two positioning columns 14 are welded with a baffle 12, and the tops of the two positioning columns 14 are sleeved with a second spring 13, and the two ends of the second spring 13 are respectively fixed to the pressure plate 15 and the baffle 12. The support plate 9 will cause the pressure plate 15 to move downward during the downward movement. When the pressure plate 15 moves downward to contact the pneumatic actuator, the pressure plate 15 will press the pneumatic actuator to move downward. When the pneumatic actuator moves to the center position of the shell 1 and the four corners are in contact with the shell 1, the support plate 9 continues to move downward at this time, and the pneumatic actuator cannot move downward, which will also cause the pressure plate 15 to fail to move downward, so the pressure plate 15 will squeeze the second spring 13, so that the pressure plate 15 squeezes and fixes the pneumatic actuator under the action of the second spring 13.

[0024] In the utility model, in order to facilitate the disassembly of the torque tester 11, a fixing assembly is used to fix the torque tester 11, and the fixing assembly includes a fixing plate 16, which is fixed to the top of the support plate 9 by bolts, and the fixing plate 16 is in contact with the torque tester 11, and a slot 10 is provided on one side of the torque tester 11, and a plug plate 17 is clamped in the slot 10, and the plug plate 17 passes through the fixing plate 16, and a side of the plug plate 17 away from the torque tester 11 is rotatably connected with a protrusion 20, and a side of the fixing plate 16 away from the torque tester 11 is fixed with a fixing block 19 by bolts, and a groove 18 is provided on the top of the fixing block 19, and the protrusion 20 is clamped with the groove 18, and the protrusion 20 is rotated to disengage the protrusion 20 from the groove 18, and the plug plate 17 can be pulled to move, so that the plug plate 17 and the torque tester 11 can be separated. The card slot 10 on the force tester 11 is disengaged, and the torque tester 11 can be removed from the support plate 9 at this time. Two guide rods 7 are fixed to the upper surface of the base plate 2 by bolts, and the guide rods 7 pass through the support plate 9. The circumferential outer wall of the telescopic rod 5 is sleeved with a first spring 6, and the two ends of the first spring 6 are respectively fixed to the carrier plate 4 and the shell 1. Since the force applied by the second spring 13 is greater than the force applied by the first spring 6, the pressure plate 15 will squeeze the carrier plate 4 to move downward, and the carrier plate 4 will squeeze the first spring 6 when it moves downward. When the test is completed, the carrier plate 4 will be reset by the force of the first spring 6, so it is convenient to take out the pneumatic actuator that has been tested. A plurality of balls 3 are provided on the upper surface of the carrier plate 4, and the plurality of balls 3 are evenly distributed. The balls 3 can reduce the resistance of the pneumatic actuator to move on the carrier plate 4.

[0025] Working principle: When it is needed, the pneumatic actuator is placed on the carrier plate 4, and then the cylinder 8 is contracted to drive the support plate 9 to move downward. The support plate 9 will move the pressure plate 15 downward during the downward movement. When the pressure plate 15 moves downward to contact with the pneumatic actuator, the pressure plate 15 will press the pneumatic actuator to move downward, and the pneumatic actuator will press the carrier plate 4 to move downward. The carrier plate 4 will squeeze the first spring 6 and the telescopic rod 5 to contract, and the pneumatic actuator will contact the shell 1 during the downward movement. If the pneumatic actuator is not in the center position of the shell 1, the elliptical funnel-shaped shell 1 will move the pneumatic actuator on the carrier plate 4, so that the pneumatic actuator moves to the shell When the pneumatic actuator moves to the center position of the shell 1 and the four corners are in contact with the shell 1, the support plate 9 continues to move downward, but the pneumatic actuator cannot move downward, which will also make the pressure plate 15 unable to move downward, so the pressure plate 15 will squeeze the second spring 13, so that the pressure plate 15 squeezes and fixes the pneumatic actuator under the force of the second spring 13, and at this time the driving shaft of the pneumatic actuator and the test end of the torque tester 11 are on the same vertical line, so the torque tester 11 can be directly docked with the pneumatic actuator without manual docking, the operation is simple, time and effort are saved, and the convenience of using the test device is improved.

[0026] The present invention has been described through the above-mentioned embodiments. Those skilled in the art will appreciate that the present invention is not limited to the above-mentioned embodiments, and more modifications may be made according to the teachings of the present invention. These modifications are all within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A testing device for a pneumatic actuator, comprising a base plate (2), characterized in that: The upper surface of the base plate (2) is fixedly connected to a shell (1), the bottom inner wall of the shell (1) is fixedly connected to a telescopic rod (5), the top of the telescopic rod (5) is fixedly connected to a carrier plate (4), the top of the base plate (2) is provided with a support plate (9), the support plate (9) is connected to the base plate (2) via a driving component, the top of the support plate (9) is provided with a torque tester (11), and the test end of the torque tester (11) passes through the support plate (9), the top of the support plate (9) is provided with a fixing component for limiting the torque tester (11), the top of the support plate (9) is provided with a clamping component for squeezing and fixing the pneumatic actuator, and the shape of the shell (1) is an elliptical funnel.

2. A pneumatic actuator testing device according to claim 1, characterized in that: The driving component is a cylinder (8), which is fixedly connected to the upper surface of the base plate (2), and one end of the pneumatic rod of the cylinder (8) is fixed to the support plate (9).

3. A testing device for a pneumatic actuator according to claim 1, characterized in that: The fixing assembly comprises a fixing plate (16), wherein the fixing plate (16) is fixedly connected to the top of the supporting plate (9), a slot (10) is provided on one side of the torque tester (11), a plug plate (17) is plugged into the slot (10), and the plug plate (17) passes through the fixing plate (16), a protrusion (20) is rotatably connected to the side of the plug plate (17) away from the torque tester (11), a fixing block (19) is fixedly connected to the side of the fixing plate (16) away from the torque tester (11), a groove (18) is provided on the top of the fixing block (19), and the protrusion (20) is plugged into the groove (18).

4. A pneumatic actuator testing device according to claim 1, characterized in that: The clamping assembly comprises two positioning columns (14), the two positioning columns (14) are fixedly connected to the top of the support plate (9), the two positioning columns (14) are respectively located on both sides of the torque tester (11), the circumferential outer walls of the two positioning columns (14) are slidably connected to a pressure plate (15), and the pressure plate (15) passes through the support plate (9), the top ends of the two positioning columns (14) are fixedly connected to a baffle (12), the top ends of the two positioning columns (14) are sleeved with a second spring (13), and the two ends of the second spring (13) are respectively fixed to the pressure plate (15) and the baffle (12).

5. A pneumatic actuator testing device according to claim 4, characterized in that: Two guide rods (7) are fixedly connected to the upper surface of the bottom plate (2), and the guide rods (7) pass through the support plate (9).

6. A pneumatic actuator testing device according to claim 1, characterized in that: A first spring (6) is sleeved on the circumferential outer wall of the telescopic rod (5), and two ends of the first spring (6) are respectively fixed to the carrier plate (4) and the housing (1).

7. A pneumatic actuator testing device according to claim 1, characterized in that: A plurality of rolling balls (3) are arranged on the upper surface of the carrier plate (4), and the plurality of rolling balls (3) are evenly distributed.

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