CN114486234A - Detection device applied to automatic detection of performance of pipeline gas self-closing valve - Google Patents
Detection device applied to automatic detection of performance of pipeline gas self-closing valve Download PDFInfo
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- CN114486234A CN114486234A CN202210083473.7A CN202210083473A CN114486234A CN 114486234 A CN114486234 A CN 114486234A CN 202210083473 A CN202210083473 A CN 202210083473A CN 114486234 A CN114486234 A CN 114486234A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/003—Machine valves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2876—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves
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Abstract
The invention discloses a detection device applied to automatic detection of the performance of a pipeline gas self-closing valve, which comprises a workbench frame, a plurality of groups of tool positions, an air inlet detection device and an air outlet detection device, wherein the tool positions, the air inlet detection device and the air outlet detection device are arranged on the workbench frame, self-closing valves are supported and fixed on the tool positions, the tool positions can be simultaneously detected by aiming at the tool positions, each tool position is an independent subsystem, which can not influence each other, thereby greatly improving the working efficiency, the air inlet detection device is butted with the air inlet of the self-closing valve, the air outlet detection device is butted with the air outlet of the self-closing valve, the air inlet detection device comprises an air inlet sealing pressure head, an air inlet pressure head fixing seat and a first air cylinder, the first cylinder drives the air inlet sealing pressure head to stretch out and draw back, so that the air inlet sealing pressure head moves back and forth, and the air inlet sealing pressure head is contacted and separated from the self-closing valve workpiece.
Description
Technical Field
The invention relates to the technical field of pipeline gas self-closing valves, in particular to a detection device applied to automatic performance detection of a pipeline gas self-closing valve.
Background
The pipeline gas self-closing valve is installed on the pipeline of a low-pressure gas system, and can be automatically closed and manually opened without using electricity or other external power when the gas supply pressure of the pipeline is under-pressure or overpressure. The basic principle of the pipeline gas self-closing valve is that permanent magnetic materials are magnetized according to design requirements to manufacture a permanent memory multi-pole permanent magnetic linkage mechanism, changes of gas pressure parameters passing through the permanent magnetic linkage mechanism are identified, and when the gas pressure parameters exceed a safe set range, the valve is automatically closed, and a gas source is cut off. The conventional detection items of the existing self-closing valve are ten items, namely appearance, air tightness, automatic closing performance, flow, mechanical durability, operating force, torsion resistance, temperature resistance, impact resistance and static load resistance. The appearance is detected by visual inspection, and six items of mechanical durability, operating force, torsion resistance, temperature resistance, impact resistance and static load resistance are detected by sampling, but after the production of the self-closing valve is finished, the rated flow and air tightness of the self-closing valve are required to be detected, and the detection items are very important.
At present, in the production and manufacturing industry of the self-closing valve, common detection equipment can only detect the air tightness of the self-closing valve independently; in addition, the existing detection equipment generally adopts manual reset, and the accurate stroke of the self-closing valve reset cover is difficult to ensure.
In addition, the existing self-closing valve detection device cannot detect the flow and the air tightness simultaneously, so that the flow and the air tightness of the self-closing valve need to be measured separately during detection, after the flow detection is carried out on the flow detection device, the air tightness of the self-closing valve can be detected only by replacing the air tightness detection device, the operation is troublesome, and the detection efficiency of the self-closing valve is influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention solves the technical problem of providing a detection device which can be provided with a plurality of tool positions, can simultaneously detect the self-closing valves on the plurality of tool positions, has independent subsystems at each tool position, can not influence each other when in work, greatly improves the working efficiency, integrates an electromagnetic valve, a flowmeter and a first pressure sensor into a whole, and has the functions of simultaneously detecting the air tightness and the flow of the self-closing valves.
In order to solve the technical problems, the invention provides a detection device for automatically detecting the performance of a pipeline gas self-closing valve, which comprises a workbench frame, a plurality of groups of tool positions, a gas inlet detection device and a gas outlet detection device, wherein the tool positions are arranged on the workbench frame, the gas inlet detection device is consistent with the tool positions, the gas outlet detection device is consistent with the tool positions, a PLC (programmable logic controller) is arranged in front of the workbench frame, the tool positions support and fix the self-closing valve, the tool positions are arranged between the gas inlet detection device and the gas outlet detection device, the gas inlet detection device is butted with a gas inlet of the self-closing valve, the gas outlet detection device is butted with a gas outlet of the self-closing valve, and a lifting device is arranged right above the tool positions;
the air inlet detection device comprises an air inlet sealing pressure head, an air inlet pressure head fixing seat and a first air cylinder, wherein the air inlet sealing pressure head penetrates through the air inlet pressure head fixing seat and is fixed on the air inlet pressure head fixing seat, an air inlet of the air inlet sealing pressure head is in butt joint with an air inlet of the self-closing valve so as to provide an air source for the self-closing valve, and a sealing end of the air inlet sealing pressure head is connected with the first air cylinder;
the air outlet detection device comprises an air outlet sealing pressure head, an air outlet pressure head fixing seat and a second air cylinder, wherein the air outlet sealing pressure head penetrates through the air outlet pressure head fixing seat and is fixed on the air outlet pressure head fixing seat, an air outlet of the air outlet sealing pressure head is in butt joint with an air outlet of the self-closing valve, and a sealing end of the air outlet sealing pressure head is connected with the second air cylinder;
the lifting device comprises a driving mechanism, a lifting clamping mechanism and a travel proximity switch, wherein the travel proximity switch is arranged on one side of the lifting clamping mechanism, the driving mechanism is connected with the lifting clamping mechanism, and the lifting clamping mechanism clamps a reset cover of the self-closing valve and vertically reciprocates under the driving of the driving mechanism.
The further improvement to above-mentioned technical scheme, the bottom of pressure head fixing base admits air is fixed with first slider and the first slide rail of mutually supporting with first slider, pressure head fixing base admits air slides on first slide rail through first slider.
The technical scheme is further improved, the air inlet detection device comprises an electromagnetic valve, a flowmeter, a first pressure sensor and a first air pipe, the flowmeter is installed between the electromagnetic valve and the first pressure sensor, and the electromagnetic valve is communicated with the flowmeter and the first pressure sensor through the first air pipe.
The air inlet detection device comprises a first flexible air pipe, a first air inlet joint is arranged on the air inlet sealing pressure head, a second air inlet joint is arranged on a first pressure sensor of the air inlet detection device, one end of the first flexible air pipe is connected with the first air inlet joint, the other end of the first flexible air pipe is connected with the second air inlet joint, and the air inlet sealing pressure head is connected with an air passage where the first pressure sensor is located through the two air inlet joints and the first flexible air pipe.
The further improvement to above-mentioned technical scheme, the bottom of the pressure head fixing base of giving vent to anger is fixed with the second slider and the second slide rail of mutually supporting with the second slider, the pressure head fixing base of giving vent to anger slides on the second slide rail through the second slider.
According to the technical scheme, the gas outlet detection device comprises a second pressure sensor and a second flexible gas pipe, a first gas outlet joint is arranged on the gas outlet sealing pressure head, a second gas outlet joint is arranged on the second pressure sensor, the second pressure sensor is connected with one end of the second flexible gas pipe through the second gas outlet joint, and the gas outlet sealing pressure head is connected with the other end of the second flexible gas pipe through the first gas outlet joint.
The further improvement of above-mentioned technical scheme, actuating mechanism includes driving motor and drive gear group, drive gear group includes first drive gear and second drive gear, first drive gear and second drive gear mesh mutually, driving motor's output shaft and first drive gear link to each other, driving motor drives first drive gear and rotates, first drive gear rotates the in-process and drives the rotation of second drive gear.
According to the further improvement of the technical scheme, the lifting clamping mechanism comprises a screw rod assembly, a connecting rod and a three-jaw cylinder clamp, the connecting rod is installed between the screw rod assembly and the three-jaw cylinder clamp, one end of the connecting rod is connected with the screw rod assembly, and the other end of the connecting rod is connected with the three-jaw cylinder clamp.
According to the further improvement of the technical scheme, the screw assembly comprises a screw rod and a screw nut which is sleeved on the screw rod and matched with the screw rod, the screw rod is connected with the second driving gear, the screw nut is connected with the connecting rod, the screw rod is driven to rotate by the second driving gear in the rotating process, the screw rod drives the screw nut matched with the screw rod to vertically reciprocate, and the reciprocating movement of the screw nut is synchronous with the vertical movement of the three-jaw air cylinder clamp.
Aiming at the further improvement of the technical scheme, a rubber sealing gasket is arranged at the butt joint of the air inlet sealing pressure head and the air inlet of the self-closing valve.
The detection device applied to the automatic detection of the performance of the pipeline gas self-closing valve provided by the embodiment of the invention has the following beneficial effects:
(1) the detection device comprises a workbench frame, a plurality of groups of tool positions, an air inlet detection device and an air outlet detection device, wherein the tool positions are arranged on the workbench frame, the tool positions are supported and fixed by self-closing valves, the tool positions can be simultaneously detected according to the tool positions, each tool position is an independent subsystem, the mutual influence is avoided, the work rhythm can be flexibly mastered, the work efficiency is greatly improved, the air inlet detection device is butted with an air inlet of the self-closing valve, the air outlet detection device is butted with an air outlet of the self-closing valve, the air inlet detection device comprises an air inlet sealing pressure head, an air inlet pressure head fixing seat and a first air cylinder, the air inlet of the air inlet sealing pressure head is butted with an air inlet of the self-closing valve to provide an air source for the self-closing valve, a sealing end of the air inlet sealing pressure head is connected with the first air cylinder, and the air inlet sealing pressure head is driven to extend and retract by the first air cylinder, the air inlet sealing pressure head can move back and forth, and the air inlet sealing pressure head can be contacted with and separated from the self-closing valve workpiece. The lifting device is arranged right above the tool position and comprises a driving mechanism, a lifting clamping mechanism and a stroke proximity switch, wherein the lifting clamping mechanism clamps and clamps a reset cover of the self-closing valve and vertically reciprocates under the driving of the driving mechanism, the reset cover of the self-closing valve is vertically reset by the lifting device, and the lifting device adopts a semi-fixed lead screw to drive a lead screw nut to move, so that a connecting rod drives a three-jaw air cylinder clamp to vertically move, the lifting stroke of the reset cover is more accurate and controllable, the mounting space is saved, and the equipment structure is more compact.
(2) The air inlet detection device comprises an electromagnetic valve, a flowmeter, a first pressure sensor and a first air pipe, wherein the flowmeter is arranged between the electromagnetic valve and the first pressure sensor, the electromagnetic valve is communicated with the flowmeter and the first pressure sensor through the first air pipe, the air inlet detection device also comprises a first flexible air pipe, a first air inlet connector is arranged on an air inlet sealing pressure head, a second air inlet connector is arranged on the first pressure sensor of the air inlet detection device, the air inlet sealing pressure head is connected with an air passage where the first pressure sensor is located through the two air inlet connectors and the first flexible air pipe, the pressure sensor can detect the air pressure of the self-closing valve, so that the air tightness of the self-closing valve is detected, the flowmeter tests the flow performance capability of the self-closing valve, and when the air inlet detection device works, the first pressure sensor, the second pressure sensor and the second pressure sensor of the air inlet detection device, The flowmeter and the like are fixed, the air inlet detection device can be effectively guaranteed in measurement accuracy and service life through movement of the air inlet sealing pressure head, air cylinder loads of the air inlet detection device and the air outlet detection device are greatly reduced, the service life of the first air cylinder is prolonged, and the service life and reliability of the equipment are integrally improved.
In addition, from the overall structure, the detection device applied to the automatic detection of the performance of the pipeline gas self-closing valve integrates the electromagnetic valve, the flowmeter and the first pressure sensor into one device, not only can detect the flow performance of the self-closing valve, but also can detect the air tightness of the self-closing valve. In addition, a lifting device is arranged right above the tool position, the lifting device comprises a driving motor, a driving gear set, a lead screw nut, a connecting rod, a three-jaw air cylinder clamp and a travel proximity switch, the lead screw nut is connected with the connecting rod and the three-jaw air cylinder clamp, when the lifting device works, the driving motor is electrified and drives the lead screw to rotate through the transmission of the gear set, the lead screw drives the lead screw nut matched with the lead screw to vertically reciprocate, the reciprocating movement of the nut is synchronous with the vertical movement of the three-jaw air cylinder clamp, after the three-jaw air cylinder clamp is in place, an air cylinder works to realize the function of grabbing the reset cover of the self-closing valve, and a position signal of the reciprocating movement is provided by the travel proximity switch fixedly connected with the lead screw nut and matching with the proximity switch. In addition, the screw rod in the lifting device adopts a semi-fixed mode to drive the screw rod nut to move, and the designed structure can enable the lifting stroke to be more accurate and controllable, saves the installation space and enables the equipment structure to be more compact.
Drawings
Fig. 1 is a schematic structural diagram of a detection device according to the present invention.
Fig. 2 is a schematic structural diagram of a detection device of the present invention.
FIG. 3 is a detailed schematic view of the detection device of the present invention;
FIG. 4 is an enlarged view of a portion of the detection device of the present invention;
FIG. 5 is an enlarged view II of a portion of the detail of the inspection device of the present invention;
FIG. 6 is a schematic view of the self-closing valve of the present invention secured in a tool position;
FIG. 7 is a schematic diagram of a tool station of the present invention;
FIG. 8 is a schematic view of the structure of the air inlet detecting device of the present invention;
FIG. 9 is a schematic view of the construction of the air outlet detecting device of the present invention;
fig. 10 is a schematic view of the construction of the lifting device of the present invention.
In the figure: the device comprises a working table frame 1, a sucker supporting foot 11, a moving wheel 12, a tool position 2, an accommodating cavity 21, an air inlet detection device 3, an air inlet sealing pressure head 31, an air inlet pressure head fixing seat 32, a first air cylinder 33, an electromagnetic valve 34, a flowmeter 35, a first pressure sensor 36, a first air pipe 37, a first air inlet joint 38, a second air inlet joint 39, an air outlet detection device 4, an air outlet sealing pressure head 41, an air outlet pressure head fixing seat 42, a second sliding block 421, a second sliding rail 422, a second air cylinder 43, a second pressure sensor 44, a first air outlet joint 45, a second air outlet joint 46, a lifting device 5, a driving mechanism 51, a driving motor 511, a driving gear group 512, a first driving gear 5121, a second driving gear 5122, a lifting clamping mechanism 52, a screw rod assembly 521, a screw rod 5211, a screw rod nut 5212, a connecting rod 522, a three-jaw air cylinder clamp 523, a three-jaw air cylinder 5231, a three-jaw clamp 5232, a three-jaw clamp, A travel proximity switch 53, a self-closing valve 6, an air inlet 61, an air outlet 62 and a PLC 7.
Detailed Description
As shown in fig. 1-10, an embodiment of the present invention provides a detection device for automatically detecting the performance of a gas self-closing valve 6 applied to a pipeline, the detection device includes a work bench 1, four sets of tool positions 2, a gas inlet detection device 3, and a gas outlet detection device 4 mounted on the work bench 1, a PLC controller 7 is mounted in front of the work bench 1, chuck support legs 11 are mounted at four corners of the bottom of the work bench 1, a moving wheel 12 is mounted at the bottom of the work bench 1, the moving wheel 12 is mounted at one side of the chuck support legs 11, each set of tool positions 2 is provided with an accommodating cavity 21 for supporting and fixing the self-closing valve 6, the four sets of tool positions 2 are mounted between the gas inlet detection device 3 and the gas outlet detection device 4, the gas inlet detection device 3 is in butt joint with a gas inlet 61 of the self-closing valve 6, the gas outlet detection device 4 is in butt joint with a gas outlet 62 of the self-closing valve 6, this detection device has four group's frock positions 2, can carry out the detection achievement of self-closing valve 6 to four group's frock positions 2 simultaneously, and every group frock position 2 is independent subsystem moreover, can not influence each other, can hold the work rhythm in a flexible way, has greatly promoted work efficiency.
As shown in fig. 1-8, in this embodiment, the air inlet detection device 3 includes an air inlet sealing ram 31, an air inlet ram fixing seat 32, and a first air cylinder 33, the air inlet sealing ram 31 passes through the air inlet ram fixing seat 32 and is fixed on the air inlet ram fixing seat 32, an air inlet of the air inlet sealing ram 31 is abutted with an air inlet 61 of the self-closing valve 6, a rubber gasket is disposed at an abutting position of the air inlet sealing ram 31 and the air inlet 61 of the self-closing valve 6 to ensure the sealing property at the abutting position of the air inlet sealing ram 31 and the self-closing valve 6, an air source is provided for the self-closing valve 6 through the air inlet detection device 3 to connect a sealing end of the air inlet sealing ram 31 and the first air cylinder 33, a first slider and a first slide rail cooperating with the first slider are fixed at the bottom of the air inlet ram fixing seat 32, the air inlet ram fixing seat 32 can slide on the first slide rail through the first slider, the air inlet detecting device 3 of the present invention includes an electromagnetic valve 34, a flow meter 35, a first pressure sensor 36, a first air pipe 37, a first flexible air pipe, wherein the flow meter 35 is installed between the electromagnetic valve 34 and the first pressure sensor 36, the electromagnetic valve 34 is communicated with the flow meter 35 and the first pressure sensor 36 through the first air pipe 37, the air inlet sealing pressure head 31 is provided with a first air inlet connector 38, a first pressure sensor 36 of the air inlet detection device 3 is provided with a second air inlet connector 39, one end of a first flexible air pipe is connected with the first air inlet connector 38, the other end of the first flexible air pipe is connected with the second air inlet connector 39, the air inlet sealing pressure head 31 is connected with an air passage where the first pressure sensor 36 is located through the two air inlet connectors and the first flexible air pipe, the pressure sensor can detect the air tightness performance of the self-closing valve 6, and the flow meter 35 tests the flow performance capability of the self-closing valve 6. In the concrete implementation, the air inlet joint is a PC air pipe joint, when the air inlet detection device 3 works, the first pressure sensor 36 and the flowmeter 35 in the air inlet detection device 3 are fixed, the air inlet sealing pressure head 31 is a moving part, and is powered by the first air cylinder 33 through the first sliding block and the two first sliding rails fixed on the air inlet pressure head fixing seat 32, the air inlet 61 of the air inlet sealing pressure head 31 and the air path of the first pressure sensor 36 are connected in series through the two PC air pipe joints and the flexible air pipe, and by virtue of the telescopic characteristic of the flexible structure, the air inlet detection device 3 of the present invention can also independently move the air inlet sealing pressure head 31, the structural design effectively ensures the measurement precision of the air inlet detection device 3, prolongs the service life of the air inlet detection device 3, and greatly reduces the load of the first air cylinder 33 of the air inlet detection device 3, the service life of the first air cylinder 33 is prolonged, and the service life and the reliability of the equipment are integrally improved.
As shown in fig. 9, in a preferred embodiment of the present invention, the air outlet detection device 4 includes an air outlet sealing pressure head 41, an air outlet pressure head fixing seat 42, and a second air cylinder 43, the air outlet sealing pressure head 41 passes through the air outlet pressure head fixing seat 42 and is fixed on the air outlet pressure head fixing seat 42, an air outlet 62 of the air outlet sealing pressure head 41 is butted with an air outlet 62 of the self-closing valve 6, a rubber gasket is also disposed at a butted position of the air outlet sealing pressure head 41 and the air outlet 62 of the self-closing valve 6 to ensure the sealing property at the jointed position of the air outlet sealing pressure head 41 and the self-closing valve 6, and a sealing end of the air outlet sealing pressure head 41 is connected with the second air cylinder 43. In the concrete implementation, a second sliding block 421 and a second sliding rail 422 which is matched with the second sliding block 421 are fixed at the bottom of the air outlet pressure head fixing seat 42, the air outlet pressure head fixing seat 42 slides on the second sliding rail 422 through the second sliding block 421, the air outlet detection device 4 further comprises a second pressure sensor 44 and a second flexible air pipe, a first air outlet joint 45 is arranged on the air outlet sealing pressure head 41, a second air outlet joint 46 is arranged on the second pressure sensor 44, the second pressure sensor 44 is connected with one end of the second flexible air pipe through the second air outlet joint 46, the air outlet sealing pressure head 41 is connected with the other end of the second flexible air pipe through the first air outlet joint 45, and an air outlet 62 of the air outlet sealing pressure head 41 is connected with an air passage where the second pressure sensor 44 is located in series through the two air outlet joints and the flexible air pipe, and by virtue of the telescopic characteristic of the flexible pipe joint structure. In addition, the air outlet detection device 4 of the invention also realizes the independent movement of the air outlet sealing pressure head 41, the structural design effectively ensures the measurement precision of the air outlet detection device 4, prolongs the service life of the air outlet detection device 4, greatly reduces the load of the second air cylinder 43 of the air outlet detection device 4, prolongs the service life of the second air cylinder 43, and integrally improves the service life and the reliability of the equipment.
In the embodiment of the invention shown in fig. 10, a lifting device 5 is arranged right above a plurality of groups of tool positions 2 provided with self-closing valves 6, the lifting device 5 comprises a driving mechanism 51, a lifting clamping mechanism 52 and a travel proximity switch 53, wherein the travel proximity switch 53 is arranged on one side of the lifting clamping mechanism 52, the driving mechanism 51 is connected with the lifting clamping mechanism 52, the lifting clamping mechanism 52 clamps a reset cover of the self-closing valve 6 and vertically reciprocates under the driving of the driving mechanism 51, the driving mechanism 51 includes a driving motor 511 and a driving gear group 512, the driving gear group 512 includes a first driving gear 5121 and a second driving gear 5122, the first driving gear 5121 is engaged with the second driving gear 5122, the output shaft of the driving motor 511 is connected to the first driving gear 5121, the driving motor 511 drives the first driving gear 5121 to rotate, and the first driving gear 5121 drives the second driving gear 5122 to rotate in the rotating process. The lifting clamping mechanism 52 comprises a screw rod assembly 521, a connecting rod 522 and a three-jaw cylinder clamp 523, wherein the connecting rod 522 is installed between the screw rod assembly 521 and the three-jaw cylinder clamp 523, one end of the connecting rod 522 is connected with the screw rod assembly 521, and the other end of the connecting rod 522 is connected with the three-jaw cylinder clamp 523. The lead screw assembly 521 comprises a lead screw 5211 and a lead screw nut 5212 which is sleeved on the lead screw 5211 and matched with the lead screw 5211, the lead screw 5211 is connected with a second driving gear 5122, the lead screw nut 5212 is connected with a connecting rod 522, a three-jaw cylinder clamp 523 comprises a three-jaw cylinder 5231 and a three-jaw clamp 5232, and the three-jaw cylinder 5231 and the three-jaw clamp 5232 are connected. When the lifting device 5 works, the driving motor 511 is powered on, the driving gear set 512 is driven to rotate by the driving motor 511, the lead screw 5211 is driven to rotate through the transmission of the first driving gear 5121 and the second driving gear 5122, the lead screw nut 5212 matched with the lead screw 5211 is driven to vertically reciprocate through the lead screw, the lead screw nut 5212 is rigidly connected with the connecting rod 522 and the three-jaw air cylinder clamp 523 through structural members, and the reciprocating movement of the nut is synchronous with the vertical movement of the three-jaw air cylinder clamp 523. After the three-jaw cylinder clamp 523 is in place, the three-jaw clamp 5232 works to grab the reset cover of the self-closing valve 6, and the lifting action of the reset cover is still realized through the vertical reciprocating motion of the screw nut 5212, the connecting rod 522 and the three-jaw cylinder clamp 523. In the specific implementation of the present invention, a metal sensing piece is fixed on the lead screw nut 5212, when the lead screw nut 5212 reciprocates, the metal sensing piece reciprocates along with the lead screw nut, and after the metal sensing piece reaches the position of the magnetoelectric stroke proximity switch 53, the metal sensing piece triggers the stroke proximity switch 53, and the stroke proximity switch 53 receives a signal. In addition, because an operation space is reserved above the tool position 2, the screw 5211 in the lifting device 5 is semi-fixed, namely only one end connected with the first driving gear 5121 is fixed, and the screw nut 5212 is driven to move.
The detection device for automatically detecting the performance of the gas self-closing valve 6 of the pipeline disclosed by the embodiment integrates the electromagnetic valve 34, the flowmeter 35 and the first pressure sensor 36 into one device, not only can detect the flow performance of the self-closing valve 6, but also can detect the air tightness of the self-closing valve 6. In addition, when the air inlet detection device 3 works, the first pressure sensor 36, the flowmeter 35 and the like of the air inlet detection device 3 are fixed, the measurement accuracy and the service life of the air inlet detection device 3 can be effectively ensured through the movement of the air inlet sealing pressure head 31, the cylinder loads of the air inlet detection device 3 and the air outlet detection device 4 are greatly reduced, the service life of the first cylinder 33 is prolonged, and the service life and the reliability of the equipment are integrally improved. The lifting device 5 is arranged right above a tool position 2, the lifting device 5 comprises a driving motor 511, a driving gear group 512, a lead screw 5211, a lead screw nut 5212, a connecting rod 522, a three-jaw air cylinder clamp 523 and a stroke proximity switch 53, the lead screw nut 5212 is connected with the connecting rod 522 and the three-jaw air cylinder clamp 523, when the lifting device 5 works, the driving motor 511 is electrified and is driven by a gear group to drive the lead screw 5211 to rotate, the lead screw 5211 drives the lead screw nut 5212 matched with the lead screw 5211 to vertically reciprocate, the reciprocating movement of the nut is synchronous with the vertical movement of the three-jaw air cylinder clamp 523, after the three-jaw air cylinder clamp 523 is in place, an air cylinder works to realize the function of grabbing a reset cover of the self-closing valve 6, and a position signal of the reciprocating movement is provided by the stroke proximity switch 53 fixedly connected with the lead screw nut 5212 and matched with the proximity switch. In addition, the screw 5211 in the lifting device 5 adopts a semi-fixed mode to drive the screw nut 5212 to move, and the designed structure can enable the lifting stroke to be more accurate and controllable, save the installation space and enable the equipment structure to be more compact.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a be applied to pipeline gas self-closing valve performance automated inspection's detection device which characterized in that: the detection device comprises a workbench frame, a plurality of groups of tool positions, an air inlet detection device and an air outlet detection device, wherein the groups of tool positions are arranged on the workbench frame, the number of the air inlet detection device is consistent with that of the groups of tool positions, the air outlet detection device is consistent with that of the groups of tool positions, a PLC (programmable logic controller) is arranged in front of the workbench frame, the groups of tool positions support and are fixedly provided with self-closing valves, the groups of tool positions are arranged between the air inlet detection device and the air outlet detection device, the air inlet detection device is in butt joint with an air inlet of the self-closing valve, the air outlet detection device is in butt joint with an air outlet of the self-closing valve, and a lifting device is arranged right above the groups of tool positions where the self-closing valves are arranged;
the air inlet detection device comprises an air inlet sealing pressure head, an air inlet pressure head fixing seat and a first air cylinder, wherein the air inlet sealing pressure head penetrates through the air inlet pressure head fixing seat and is fixed on the air inlet pressure head fixing seat, an air inlet of the air inlet sealing pressure head is in butt joint with an air inlet of the self-closing valve so as to provide an air source for the self-closing valve, and a sealing end of the air inlet sealing pressure head is connected with the first air cylinder;
the air outlet detection device comprises an air outlet sealing pressure head, an air outlet pressure head fixing seat and a second air cylinder, wherein the air outlet sealing pressure head penetrates through the air outlet pressure head fixing seat and is fixed on the air outlet pressure head fixing seat, an air outlet of the air outlet sealing pressure head is in butt joint with an air outlet of the self-closing valve, and a sealing end of the air outlet sealing pressure head is connected with the second air cylinder;
the lifting device comprises a driving mechanism, a lifting clamping mechanism and a travel proximity switch, wherein the travel proximity switch is installed on one side of the lifting clamping mechanism, the driving mechanism is connected with the lifting clamping mechanism, and the lifting clamping mechanism clamps a reset cover of the self-closing valve and vertically reciprocates under the driving of the driving mechanism.
2. The detection device applied to the automatic detection of the performance of the pipeline gas self-closing valve as recited in claim 1, wherein: the bottom of pressure head fixing base admits air is fixed with first slider and the first slide rail of mutually supporting with first slider, the pressure head fixing base that admits air slides on first slide rail through first slider.
3. The detection device applied to the automatic detection of the performance of the pipeline gas self-closing valve as recited in claim 1, wherein: the air inlet detection device comprises an electromagnetic valve, a flowmeter, a first pressure sensor and a first air pipe, wherein the flowmeter is installed between the electromagnetic valve and the first pressure sensor, and the electromagnetic valve is communicated with the flowmeter and the first pressure sensor through the first air pipe.
4. The detection device applied to the automatic detection of the performance of the pipeline gas self-closing valve as recited in claim 1, wherein: the air inlet detection device comprises a first flexible air pipe, a first air inlet joint is arranged on the air inlet sealing pressure head, a second air inlet joint is arranged on a first pressure sensor of the air inlet detection device, one end of the first flexible air pipe is connected with the first air inlet joint, the other end of the first flexible air pipe is connected with the second air inlet joint, and the air inlet sealing pressure head is connected with an air circuit where the first pressure sensor is located through the two air inlet joints and the first flexible air pipe.
5. The detection device applied to the automatic detection of the performance of the pipeline gas self-closing valve as recited in claim 1, wherein: the bottom of the air outlet pressure head fixing seat is fixed with a second sliding block and a second sliding rail matched with the second sliding block, and the air outlet pressure head fixing seat slides on the second sliding rail through the second sliding block.
6. The detection device applied to the automatic detection of the performance of the pipeline gas self-closing valve as recited in claim 1, wherein: the gas outlet detection device comprises a second pressure sensor and a second flexible gas pipe, a first gas outlet joint is arranged on the gas outlet sealing pressure head, a second gas outlet joint is arranged on the second pressure sensor, the second pressure sensor is connected with one end of the second flexible gas pipe through the second gas outlet joint, and the gas outlet sealing pressure head is connected with the other end of the second flexible gas pipe through the first gas outlet joint.
7. The detection device applied to the automatic detection of the performance of the pipeline gas self-closing valve as recited in claim 1, wherein: the driving mechanism comprises a driving motor and a driving gear set, the driving gear set comprises a first driving gear and a second driving gear, the first driving gear is meshed with the second driving gear, an output shaft of the driving motor is connected with the first driving gear, the driving motor drives the first driving gear to rotate, and the first driving gear drives the second driving gear to rotate in the rotating process.
8. The detection device applied to the automatic detection of the performance of the pipeline gas self-closing valve as recited in claim 1, wherein: the lifting clamping mechanism comprises a screw rod assembly, a connecting rod and a three-jaw air cylinder clamp, the connecting rod is installed between the screw rod assembly and the three-jaw air cylinder clamp, one end of the connecting rod is connected with the screw rod assembly, and the other end of the connecting rod is connected with the three-jaw air cylinder clamp.
9. The detection device applied to the automatic detection of the performance of the pipeline gas self-closing valve as recited in claim 8, wherein: the lead screw component comprises a lead screw and a lead screw nut which is sleeved on the lead screw and matched with the lead screw, the lead screw is connected with the second driving gear, the lead screw nut is connected with the connecting rod, the second driving gear drives the lead screw to rotate in the rotating process, the lead screw drives the lead screw nut matched with the lead screw to vertically reciprocate, and the reciprocating movement of the lead screw nut is synchronous with the vertical movement of the three-jaw air cylinder clamp.
10. The detection device applied to the automatic detection of the performance of the pipeline gas self-closing valve as recited in claim 1, wherein: and a rubber sealing gasket is arranged at the butt joint of the air inlet sealing pressure head and the air inlet of the self-closing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210083473.7A CN114486234A (en) | 2022-01-24 | 2022-01-24 | Detection device applied to automatic detection of performance of pipeline gas self-closing valve |
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| CN202210083473.7A CN114486234A (en) | 2022-01-24 | 2022-01-24 | Detection device applied to automatic detection of performance of pipeline gas self-closing valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116222914A (en) * | 2022-12-30 | 2023-06-06 | 浙江方正家用电器质量检测有限公司 | Household appliance safety detection device and detection method |
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|---|---|---|---|---|
| CN113125144A (en) * | 2021-04-07 | 2021-07-16 | 成都特恩达燃气设备有限公司 | Self-closing valve test system and test device |
| CN113405792A (en) * | 2021-06-11 | 2021-09-17 | 宁波忻杰燃气用具实业有限公司 | Self-closing valve multi-state testing tool |
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- 2022-01-24 CN CN202210083473.7A patent/CN114486234A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113125144A (en) * | 2021-04-07 | 2021-07-16 | 成都特恩达燃气设备有限公司 | Self-closing valve test system and test device |
| CN113405792A (en) * | 2021-06-11 | 2021-09-17 | 宁波忻杰燃气用具实业有限公司 | Self-closing valve multi-state testing tool |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116222914A (en) * | 2022-12-30 | 2023-06-06 | 浙江方正家用电器质量检测有限公司 | Household appliance safety detection device and detection method |
| CN116222914B (en) * | 2022-12-30 | 2023-09-22 | 浙江方正家用电器质量检测有限公司 | Household appliance safety detection device and detection method |
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