Air tightness detection machine for pneumatic actuator

Abstract

The utility model provides a pneumatic actuator airtightness detection machine, which relates to the technical field of pneumatic actuators and comprises a detection mechanism, and a cleaning mechanism is arranged on the detection mechanism. The cleaning mechanism comprises an air compressor, two cylindrical holes and two electric push rods, a three-way pipe is installed at the air outlet end of the air compressor, electric valves are installed at the two air outlet ends of the three-way pipe, an air conveying pipe is movably connected into one cylindrical hole in a sleeved mode, an air outlet pipe is installed at the air outlet end of the air conveying pipe, and an air inlet pipe is installed at the air outlet end of the air outlet pipe. A clamping block is installed between the telescopic ends of the two electric push rods. According to the utility model, through the arrangement of the cleaning mechanism, dust attached to the filter screen at the position of the heat dissipation hole of the detection machine can be cleaned, so that the workload of workers is reduced, the use effect of the detection machine is improved, and the use efficiency of the detection machine is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic actuators, in particular to an air tightness detection machine for pneumatic actuators. Background Art

[0002] A pneumatic actuator is a device that uses compressed air as a power source to convert air pressure energy into mechanical energy to achieve linear or rotational motion. However, in order to ensure the working performance and improve energy efficiency of the pneumatic actuator in later use, the pneumatic actuator will be tested for air tightness after production and before sale. This can prevent unqualified pneumatic actuators from entering the market. The air tightness test of the pneumatic actuator requires the use of an air tightness tester.

[0003] In the existing technology, during actual use, the existing pneumatic actuator air tightness detection machine can perform air tightness detection on the pneumatic actuator and sort out the unqualified pneumatic actuators from the qualified pneumatic actuator pile, so as to ensure the working performance and improve the energy efficiency of the pneumatic actuators used later. However, it does not have the function of cleaning the filter at the heat dissipation hole position of the detection machine. That is, when the detection machine is used for a long time, the filter at the heat dissipation hole position of the detection machine will be attached with a lot of dust. At this time, if manual cleaning is adopted, it will increase the workload of the staff, which will not only reduce the use effect of the detection machine, but also reduce the use efficiency of the inspection machine.

[0004] However, therefore, it is necessary to propose a new type of pneumatic actuator air tightness detection machine. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that the existing pneumatic actuator air tightness detection machine does not have the function of cleaning the filter screen at the heat dissipation hole position of the detection machine, that is, when the detection machine is used for a long time, the filter screen at the heat dissipation hole position of the detection machine will be attached with a large amount of dust. At this time, if manual cleaning is adopted, the workload of the staff will be increased, which will not only reduce the use effect of the detection machine, but also reduce the use efficiency of the inspection machine. A pneumatic actuator air tightness detection machine is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a pneumatic actuator air tightness detection machine, comprising a detection mechanism, wherein the detection mechanism is provided with a cleaning mechanism;

[0007] The cleaning mechanism includes an air compressor, two cylindrical holes and two electric push rods. A three-way pipe is installed at the air outlet end of the air compressor, and electric valves are installed at both air outlet ends of the three-way pipe. An air supply pipe is movably sleeved inside one of the cylindrical holes, and an air outlet pipe is installed at the air outlet end of the air supply pipe. A block is installed between one end of the telescopic ends of the two electric push rods.

[0008] Preferably, the air inlet end of the air supply pipe is connected to the air outlet end of one of the electric valves, and the air outlet end of the air outlet pipe is fixedly passed through one side of the block, so that when the block moves, the air outlet pipe can be driven to move.

[0009] Preferably, the detection mechanism includes a double-slot block, a single-hole plate is installed on the front surface of the double-slot block, the single-hole plate is located at the notch of one of the grooves of the double-slot block, a controller is installed on the surface of the single-hole plate, the control end of the controller is located inside the single-hole plate, the two electric valves and the two electric push rods are electrically connected to the controller, the two cylindrical holes are opened on the inner wall of one of the grooves of the double-slot block, and an auxiliary hole is opened between the two inner walls of the grooves of the double-slot block, and the servo electric cylinder can be guaranteed to work normally under the action of the auxiliary hole.

[0010] Preferably, a servo electric cylinder is installed at the bottom of the inner wall of one of the grooves of the double-groove block, and the servo electric cylinder is electrically connected to the controller. The telescopic end of the servo electric cylinder is inside the auxiliary hole, and the telescopic end of the servo electric cylinder extends to the inside of another groove of the double-groove block. An L-shaped tube is movably penetrated through the bottom of the inner wall of one of the grooves of the double-groove block, and the air inlet end of the L-shaped tube is connected to the air outlet end of another electric valve. A hose is installed at the air outlet end of the L-shaped tube, so that the compressed air delivered by the L-shaped tube can be delivered to the inside of the ventilation pipe under the action of the hose.

[0011] Preferably, a ventilation pipe is installed at the bottom of the telescopic end of the servo electric cylinder, the air inlet end of the ventilation pipe is connected to the air outlet end of the hose, a sealing ring is bonded to the bottom of one of the air outlet ends of the ventilation pipe, a pressure gauge is installed at the other air outlet end of the ventilation pipe, and a limit block is fixed to the bottom of the inner wall of the other groove of the double-groove block, and the pneumatic actuator to be tested can be fixed under the action of the limit block.

[0012] Preferably, a hollow block is fixed to the rear surface of the double-slot block, a filter is installed on the side of the hollow block away from the double-slot block, the air compressor is installed at the bottom of the inner wall of one of the grooves of the double-slot block, and the two electric push rods are symmetrically installed on the outer wall of the hollow block, so that under the action of the hollow block, a location for installing the filter and the two electric push rods can be provided.

[0013] Preferably, the clamping end of the clamping block movably passes through one side of the hollow block and is slidably embedded in the inner wall of the hollow block, the outlet end of the air outlet pipe is slidably embedded in the inner wall of the hollow block, the top of the clamping end of the clamping block and the bottom of the clamping end of the clamping block are respectively in contact with the top of the inner wall of the hollow block and the bottom of the inner wall of the hollow block, and one of the outlet ends of the air outlet pipe movably passes through one side of the hollow block, so that under the action of the air outlet pipe, the compressed air delivered by the air supply pipe can be delivered to the interior of the hollow block.

[0014] Compared with the prior art, the advantages and positive effects of the utility model are:

[0015] 1. In the utility model, by setting a cleaning mechanism, the dust attached to the filter screen at the heat dissipation hole position of the detection machine can be cleaned, thereby reducing the workload of the staff, improving the use effect of the detection machine, and also improving the use efficiency of the detection machine. Through the cooperation of the electric valve and the three-way pipe, it can be controlled whether the compressed air discharged by the air compressor enters the interior of the air pipe. Through the action of the air outlet pipe, the compressed air delivered by the delivery pipe can be delivered to the interior of the hollow block. Through the action of the limit block, it can be prevented that the dust on the filter screen enters one of the grooves of the double-slot block from the heat dissipation hole position on the double-slot block when cleaning the dust. Through the action of the electric push rod, the card block can be driven to move.

[0016] 2. In the utility model, by setting up a detection mechanism, the air tightness detection of the pneumatic actuator to be detected can be carried out to determine whether the pneumatic actuator to be detected is qualified. Under the action of the servo electric cylinder, the ventilation pipe and the components installed on the ventilation pipe can be driven to move at the same time. Under the action of the single-hole plate, the components inside one of the grooves of the double-slot block can be protected. Through the cooperation of the filter net and the hollow block, dust in the environment can be prevented from entering one of the grooves of the double-slot block from the heat dissipation hole position on the double-slot block. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A partially cutaway stereoscopic diagram of a machine for testing the air tightness of a pneumatic actuator is provided for the utility model;

[0018] Figure 2 A partial structural schematic diagram of a pneumatic actuator air tightness detection machine is provided for the utility model;

[0019] Figure 3 A partial stereoscopic diagram of a pneumatic actuator air tightness detection machine proposed by the utility model;

[0020] Figure 4 Another perspective view of a partial cross-section of a pneumatic actuator air tightness detection machine provided by the utility model;

[0021] Figure 5 A three-dimensional diagram of a machine for detecting the air tightness of a pneumatic actuator is provided for the utility model;

[0022] Figure 6 The utility model proposes a pneumatic actuator air tightness detection machine Figure 1 Enlarged stereogram of point A in the middle.

[0023] Legend: 1. Detection mechanism; 101. Double-slot block; 102. Single-hole plate; 103. Controller; 104. Auxiliary hole; 105. Servo electric cylinder; 106. L-shaped pipe; 107. Hose; 108. Ventilation pipe; 109. Sealing ring; 110. Pressure gauge; 111. Limit block; 112. Hollow block; 113. Filter; 2. Cleaning mechanism; 201. Air compressor; 206. Exhaust pipe; 203. Three-way pipe; 204. Electric valve; 205. Cylindrical hole; 202. Air supply pipe; 207. Block; 208. Electric push rod. DETAILED DESCRIPTION

[0024] 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.

[0025] 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.

[0026] See also Figure 1-Figure 6 , the utility model provides a technical solution: a pneumatic actuator air tightness detection machine, comprising a detection mechanism 1, the detection mechanism 1 is provided with a cleaning mechanism 2;

[0027] The cleaning mechanism 2 includes an air compressor 201, two cylindrical holes 205 and two electric push rods 208. A three-way pipe 203 is installed at the air outlet end of the air compressor 201. Electric valves 204 are installed at both air outlet ends of the three-way pipe 203. An air supply pipe 202 is movably sleeved inside one of the cylindrical holes 205. An air outlet pipe 206 is installed at the air outlet end of the air supply pipe 202. A block 207 is installed between one end of the telescopic ends of the two electric push rods 208.

[0028] like Figure 1-Figure 4 and Figure 6As shown, the air inlet end of the air supply pipe 202 is connected to the air outlet end of one of the electric valves 204, and the air outlet end of the air outlet pipe 206 is fixedly passed through one side of the block 207, so that when the block 207 moves, the air outlet pipe 206 can be driven to move.

[0029] like Figure 1-Figure 3 , Figure 5 and Figure 6 As shown, the detection mechanism 1 includes a double-slot block 101, a single-hole plate 102 is installed on the front surface of the double-slot block 101, the single-hole plate 102 is located at the notch of one of the grooves of the double-slot block 101, a controller 103 is installed on the surface of the single-hole plate 102, the control end of the controller 103 is located inside the single-hole plate 102, two electric valves 204 and two electric push rods 208 are electrically connected to the controller 103, two cylindrical holes 205 are opened on the inner wall of one of the grooves of the double-slot block 101, and an auxiliary hole 104 is opened between the inner walls of the two grooves of the double-slot block 101. Under the action of the auxiliary hole 104, the servo electric cylinder 105 can be guaranteed to work normally.

[0030] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, a servo electric cylinder 105 is installed at the bottom of the inner wall of one of the grooves of the double-groove block 101, and the servo electric cylinder 105 is electrically connected to the controller 103. The telescopic end of the servo electric cylinder 105 is inside the auxiliary hole 104, and the telescopic end of the servo electric cylinder 105 extends to the inside of another groove of the double-groove block 101. An L-shaped tube 106 is movably penetrated through the bottom of the inner wall of one of the grooves of the double-groove block 101, and the air inlet end of the L-shaped tube 106 is connected to the air outlet end of another electric valve 204. A hose 107 is installed at the air outlet end of the L-shaped tube 106, so that the compressed air delivered by the L-shaped tube 106 can be delivered to the inside of the ventilation pipe 108 under the action of the hose 107.

[0031] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, a vent pipe 108 is installed at the bottom of the telescopic end of the servo electric cylinder 105, the air inlet end of the vent pipe 108 is connected to the air outlet end of the hose 107, a sealing ring 109 is bonded to the bottom of one of the air outlet ends of the vent pipe 108, and a pressure gauge 110 is installed at the other air outlet end of the vent pipe 108. A limit block 111 is fixed to the bottom of the inner wall of the other groove of the double groove block 101, and the pneumatic actuator to be tested can be fixed by the action of the limit block 111.

[0032] like Figure 1-Figure 6As shown, a hollow block 112 is fixed to the rear surface of the double-slot block 101, a filter screen 113 is installed on the side of the hollow block 112 away from the double-slot block 101, the air compressor 201 is installed at the bottom of the inner wall of one of the grooves of the double-slot block 101, and two electric push rods 208 are symmetrically installed on the outer wall of the hollow block 112, so that under the action of the hollow block 112, a location for installing the filter screen 113 and the two electric push rods 208 can be provided.

[0033] like Figure 1-Figure 4 As shown, the clamping end of the clamping block 207 movably passes through one side of the hollow block 112 and is slidably embedded in the inner wall of the hollow block 112, and the outlet end of the air outlet pipe 206 is slidably embedded in the inner wall of the hollow block 112, and the top of the clamping end of the clamping end 207 and the bottom of the clamping end of the clamping end 207 are respectively in contact with the top of the inner wall of the hollow block 112 and the bottom of the inner wall of the hollow block 112, and one of the outlet ends of the air outlet pipe 206 movably passes through one side of the hollow block 112, and under the action of the air outlet pipe 206, the compressed air delivered by the air supply pipe 202 can be delivered to the interior of the hollow block 112.

[0034] The method of use and working principle of this device: When it is necessary to test the air tightness of the pneumatic actuator, first place the pneumatic actuator inside the limit block 111. When the pneumatic actuator is placed, first connect the controller 103 to the external power supply, then turn on the controller 103, set the usage program, and then turn on the air compressor 201 to let the air compressor 201 suck in the air in the environment, compress it, and then transport it to the air storage tank above it for storage. When the air storage tank of the air compressor 201 is full of compressed gas, the air compressor 201 will stop sucking in the air in the environment, and then use the cooperation of the controller 103 and the two electric push rods 208 to move the clamping end of the clamping block 207 out of the interior of the hollow block 112. When the block 207 moves, the moving block 207 will also drive the outlet pipe 206 to move. When the block 207 moves to a suitable position, one of the outlet ports of the outlet pipe 206 is just at the same level as one side of the inner wall of the hollow block 112. At this time, the controller 103 is used to pause the two electric push rods 208 at the same time. When everything is ready, the servo electric cylinder 105 is directly started by the controller 103. At this time, the telescopic end of the started servo electric cylinder 105 will drive the vent pipe 108, the sealing ring 109 connected to the vent pipe 108 and the pressure gauge 110 connected to it to move downward at the same time. When the bottom of the sealing ring 109 is in tight contact with the surface of the air inlet at the top of the starting actuator, Then, the controller 103 is used to pause the servo electric cylinder 105, and then the controller 103 is used to open another electric valve 204. When the other electric valve 204 is opened, the compressed air in the air tank on the air compressor 201 will be directly delivered to the inside of the three-way pipe 203, and then delivered to the inside of the opened other electric valve 204, and then delivered to the inside of the L-shaped pipe 106, and then delivered to the inside of the hose 107, and then delivered to the inside of the ventilation pipe 108, and then delivered to the inside of the pneumatic actuator through the cooperation of the sealing ring 109. At the same time, the pressure gauge 110 will also monitor the pressure intensity inside the ventilation pipe 108 at all times. When a certain pressure of compressed air is injected into the pneumatic actuator, the controller 10 is directly used to 3 Close the other electric valve 204, then wait for a while and observe whether the pressure value of the pressure gauge 110 changes. If not, the pneumatic actuator is qualified, otherwise it is unqualified. At the same time, the heat generated by the servo electric cylinder 105, the controller 103 and the air compressor 201 during operation will also be dispersed into the space formed by the single-hole plate 102 and one of the grooves of the double-slot block 101. Then, with the cooperation of the heat dissipation holes on one of the grooves of the double-slot block 101, the hollow block 112 and the filter 113, the heat dispersed into the above space can be dissipated. When the pneumatic actuator completes the air tightness test, the controller 103 and the servo electric cylinder 105 are directly used to cooperate to reset the ventilation pipe 108 to its original position.Then, the pneumatic actuator is taken out from the inside of the limit block 111, and the next pneumatic actuator air tightness test can be carried out. When the dust attached to the filter screen 113 needs to be cleaned, the controller 103 and the two electric push rods 208 are first used to reset the block 207 and the air outlet pipe 206 to their initial positions. When the block 207 and the air outlet pipe 206 are reset to their original positions, the controller 103 is used to pause the two electric push rods 208, and then one of the electric valves 204 is opened. When one of the electric valves 204 is opened, the air pressure The compressed air in the air storage tank on the compressor 201 will be directly delivered to the inside of one of the electric valves 204 opened with the cooperation of the three-way pipe 203, and then delivered to the inside of the air delivery pipe 202, and then delivered to the inside of the air outlet pipe 206, and then sprayed out from the other air outlet end of the air outlet pipe 206, sprayed inside the space formed by the hollow block 112 and the block 207, and then blown onto the filter 113. At this time, the compressed air that passes through quickly can blow away the dust attached to the filter 113, thereby achieving the function of dust treatment on the filter 113.

[0035] Among them, another cylindrical hole 205 is used for the wires connecting the two electric push rods 208 and the controller 103 to pass through, and the hollow block 112 is located at the heat dissipation hole outlet position inside one of the grooves of the double-slot block 101.

[0036] Among them, the controller 103 (PLC controller), servo electric cylinder 105, pressure gauge 110, filter 113, air compressor 201, electric valve 204 and electric push rod 208 are all existing technologies, and their models can be selected according to actual conditions, and no further explanation is given here.

[0037] 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 air tightness detection machine, comprising a detection mechanism (1), characterized in that: The detection mechanism (1) is provided with a cleaning mechanism (2); The cleaning mechanism (2) comprises an air compressor (201), two cylindrical holes (205) and two electric push rods (208); a three-way pipe (203) is installed at the air outlet end of the air compressor (201); electric valves (204) are installed at both air outlet ends of the three-way pipe (203); an air supply pipe (202) is movably sleeved inside one of the cylindrical holes (205); an air outlet pipe (206) is installed at the air outlet end of the air supply pipe (202); and a clamping block (207) is installed between one end of the telescopic ends of the two electric push rods (208).

2. The air tightness detection machine for pneumatic actuators according to claim 1, characterized in that: The air inlet end of the air delivery pipe (202) is connected to the air outlet end of one of the electric valves (204), and the air outlet end of the air outlet pipe (206) is fixedly passed through one side of the clamping block (207).

3. The air tightness detection machine for pneumatic actuators according to claim 1, characterized in that: The detection mechanism (1) comprises a double-slot block (101), a single-hole plate (102) is installed on the front surface of the double-slot block (101), the single-hole plate (102) is located at the notch of one of the grooves of the double-slot block (101), a controller (103) is installed on the surface of the single-hole plate (102), the control end of the controller (103) is located inside the single-hole plate (102), the two electric valves (204) and the two electric push rods (208) are electrically connected to the controller (103), the two cylindrical holes (205) are opened on the inner wall of one of the grooves of the double-slot block (101), and an auxiliary hole (104) is opened between the inner walls of the two grooves of the double-slot block (101).

4. The air tightness detection machine for pneumatic actuators according to claim 3, characterized in that: A servo electric cylinder (105) is installed at the bottom of the inner wall of one of the grooves of the double groove block (101), and the servo electric cylinder (105) is electrically connected to the controller (103). The telescopic end of the servo electric cylinder (105) is located inside the auxiliary hole (104), and the telescopic end of the servo electric cylinder (105) extends to the inside of another groove of the double groove block (101). An L-shaped tube (106) is movably penetrated through the bottom of the inner wall of one of the grooves of the double groove block (101), and the air inlet end of the L-shaped tube (106) is connected to the air outlet end of another electric valve (204), and a hose (107) is installed at the air outlet end of the L-shaped tube (106).

5. The air tightness detection machine for pneumatic actuators according to claim 4, characterized in that: A vent pipe (108) is installed at the bottom of the telescopic end of the servo electric cylinder (105); the air inlet end of the vent pipe (108) is connected to the air outlet end of the hose (107); a sealing ring (109) is bonded to the bottom of one of the air outlet ends of the vent pipe (108); a pressure gauge (110) is installed at the other air outlet end of the vent pipe (108); and a limit block (111) is fixed to the bottom of the inner wall of the other groove of the double groove block (101).

6. The air tightness detection machine for pneumatic actuators according to claim 3, characterized in that: A hollow block (112) is fixed to the rear surface of the double-grooved block (101), a filter screen (113) is installed on a side of the hollow block (112) away from the double-grooved block (101), the air compressor (201) is installed at the bottom of the inner wall of one of the grooves of the double-grooved block (101), and the two electric push rods (208) are symmetrically installed on the outer wall of the hollow block (112).

7. The air tightness detection machine for pneumatic actuators according to claim 6, characterized in that: The clamping end of the clamping block (207) movably passes through one side of the hollow block (112) and is slidably embedded in the inner wall of the hollow block (112); the outlet end of the air outlet pipe (206) is slidably embedded in the inner wall of the hollow block (112); the top of the clamping end of the clamping block (207) and the bottom of the clamping end of the clamping block (207) are in contact with the top of the inner wall of the hollow block (112) and the bottom of the inner wall of the hollow block (112) respectively; and one of the outlet ends of the air outlet pipe (206) movably passes through one side of the hollow block (112).

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