CN114034441A - Detection method for valve production engineering - Google Patents
Detection method for valve production engineering Download PDFInfo
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- CN114034441A CN114034441A CN202111307277.5A CN202111307277A CN114034441A CN 114034441 A CN114034441 A CN 114034441A CN 202111307277 A CN202111307277 A CN 202111307277A CN 114034441 A CN114034441 A CN 114034441A
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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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
- G01M3/08—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for pipes, cables or tubes; for pipe joints or seals; for valves; for welds
- G01M3/086—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for pipes, cables or tubes; for pipe joints or seals; for valves; for welds for valves
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- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention relates to the technical field of valve production, in particular to a detection method used in valve production engineering, which comprises a detection box, a water tank and a controller, wherein the water tank and the controller are both arranged on the detection box, the water tank is communicated with the detection box, and the detection method also comprises the following steps: the sliding seat is movably arranged in the detection box; the limiting bracket is arranged between the sliding seat and the detection box and used for fixing the position of the sliding seat; the detection system is arranged on the sliding seat and used for detecting the air tightness of the valve; the detection system is in sliding fit with the guide seat, and the detection system works when passing through the guide seat; through the cooperation between a plurality of groups of position finding units that set up evenly distributed and the drive module, can be through the position of the accurate analysis venthole of the signal of telecommunication, avoid the staff to neglect the condition emergence of forgetting or omitting the gas pocket position, shortened whole detection cycle moreover.
Description
Technical Field
The invention relates to the technical field of valve production, in particular to a detection method used in valve production engineering.
Background
The valve is a pipeline accessory used for opening and closing a pipeline, controlling the flow direction, adjusting and controlling parameters of a conveying medium, is a control part in a fluid conveying system, has the functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, shunting or overflowing and relieving pressure and the like, is used for the valve of the fluid control system, and has a great variety and specification from the simplest stop valve to various valves used in an extremely complicated automatic control system.
The valve can be put into use only by detecting the air tightness of the valve after production, and the traditional air tightness detection working modes are various, wherein the most common method is to directly put the valve into water to observe whether bubbles are generated on the surface of the valve.
The following defects exist in the detection of air tightness by putting a valve into water and directly observing the generation of bubbles:
1. if the air holes are too small, the phenomenon of generating air bubbles is not obvious, and workers cannot sense the fine phenomenon;
2. the position of gas pocket needs the staff through the naked eye location, in case the gas pocket quantity is too much, the staff leads to the omission and the forgetting of gas pocket position easily.
Disclosure of Invention
The present invention is directed to a detection method for use in valve production engineering to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme:
a detection method for valve production engineering comprises a detection device for valve production engineering, wherein the detection device comprises a detection box, a water tank and a controller, the water tank and the controller are both arranged on the detection box, and the water tank and the detection box are communicated with each other, and the detection method further comprises the following steps:
the sliding seat is movably arranged in the detection box;
the limiting bracket is arranged between the sliding seat and the detection box and used for fixing the position of the sliding seat;
the detection system is arranged on the sliding seat and used for detecting the air tightness of the valve; and
the detection system is in sliding fit with the guide seat, and the detection system works when passing through the guide seat; wherein
The detection system comprises:
the mounting frame is arranged on the sliding seat;
the connecting seats are arranged in a group and symmetrically and movably arranged on the inner wall of the mounting frame;
the screen frames are at least one group in number and are detachably arranged on the connecting seat, and a closed detection area is formed between the screen frames in the same group;
the plugging head is arranged on the connecting seat, the interior of the plugging head is hollow, and an air bag is bonded at the hollow position in the plugging head; and
the driving module is movably arranged on the mounting frame, is connected with the connecting seat and is used for controlling the movement of the connecting seat, and is in sliding fit with the guide seat;
the limiting bracket is provided with an inflation module communicated with the air bag, and the air pressure value in the air bag can be adjusted through the inflation module when the sliding seat moves; the limiting bracket comprises a sliding block, a telescopic rod and an elastic piece;
the quantity of slider is a set of and all the activity sets up in the fashioned guide slot in the detection case at least, telescopic link swing joint between slider and sliding seat, and the elastic component is connected between adjacent telescopic link.
The detection method comprises the following steps:
one of the screen frames is removed, two ends of the valve are installed between the plugging heads, and meanwhile, the water pump in the water tank is controlled by the controller to work to discharge water into the detection tank until the water level reaches the height capable of smoothly detecting the air tightness of the valve;
under the action of the total weight of the valve, the mounting frame and the screen frame, the sliding blocks are driven to move towards two sides along the guide grooves, and the sliding seat, the valve and the whole detection system move downwards in the detection box under the action of the telescopic rods;
the air bag in the plugging head is continuously inflated through the inflation module, the air bag expands in volume inside the valve, so that air in the valve is extruded, when the valve has air holes, the compressed air can be discharged from the air hole position of the valve to generate a large amount of air bubbles, and a worker can analyze the position of the air holes in the valve according to the air bubble generation position;
when drive module process guide holder, can also drive the valve rotation in connecting seat and the screen cloth frame to the position of adjusting valve avoids the gas pocket to be located the downside of valve and the phenomenon that leads to the bubble to produce should receive blockking and not obvious of valve body, further helps the more clear position of finding out the gas pocket of staff.
The application further adopts the technical scheme that: the plugging head is conical, and the small-diameter end of the plugging head is far away from the connecting seat.
The application further adopts the technical scheme that: the detection box is characterized in that a positioning hole is formed in the sliding block, a positioning bolt is connected to the detection box in a threaded mode, and the positioning screw is matched with the positioning hole.
This application still further technical scheme: the driving module includes:
the driving seat is arranged on one side of the mounting frame and is connected with the mounting frame;
the abutting seat is movably arranged on the driving seat, the guide seat is in sliding fit with the abutting seat, and a bulge part is arranged on the guide seat and positioned on the moving path of the abutting seat;
the matching seat is movably arranged on the mounting frame and is connected with the connecting seat;
one end of the driving shaft is movably inserted in the matching seat and is elastically connected with the matching seat, the driving shaft is also connected with the abutting seat, the driving shaft is provided with a clamping strip, and a clamping groove matched with the clamping strip is arranged in the matching seat; and
the number of the balls is at least one, the balls are embedded on the contact seat in a sliding mode, and spiral grooves matched with the balls in a sliding mode are formed in the driving seat.
This application still further technical scheme: one end of the abutting seat is provided with a resistance reducing piece, the resistance reducing piece is in sliding fit with the guide seat, and the friction resistance between the abutting seat and the guide seat can be reduced.
This application still further technical scheme: the drive shaft is hollow inside, and the cover is equipped with on the drive shaft and connects gas jacket seat, connects gas jacket seat to pass through drive shaft and cooperation seat and gasbag intercommunication, connect gas jacket seat still with aerify the module intercommunication.
The application adopts a further technical scheme that: the inflation module comprises an inflation tube, a piston, a lantern ring and a magnet;
the gas tube is connected with the sliding seat, the number of the pistons is the same as that of the gas sleeve seats, the pistons are movably arranged in the gas tube, the gas tube is connected with the gas sleeve seats, the lantern ring is movably sleeved on the outer wall of the gas tube, and magnets are arranged in the lantern ring and the pistons.
The application adopts a further technical scheme that: the detection system further comprises a plurality of groups of position measuring units for detecting the air leakage position of the valve, and the plurality of groups of position measuring units are uniformly arranged on the screen frame and are electrically connected with the controller.
The application adopts a further technical scheme that: each of the positioning units includes:
the fixed seat is arranged in the screen frame;
the sliding rod is movably arranged on the fixed seat and is elastically connected with the fixed seat;
the bubble head is arranged on the inner side of the screen frame and is connected with the sliding rod; and
and the monitoring element is arranged between the sliding rod and the fixed seat and used for monitoring the position of the sliding rod relative to the fixed seat.
Compared with the prior art, the technical scheme provided by the embodiment of the invention has the following beneficial effects:
according to the embodiment of the invention, by adopting a linkage structure, when the valve and the detection system move downwards under the action of gravity, the angle between the telescopic rods is increased, so that the inflation module continuously inflates the air bag when working, the air bag expands to extrude the air in the valve, the compressed air is rapidly discharged from the air hole in the valve with poor air tightness and generates a large amount of air bubbles, compared with the traditional mode of directly putting the valve into water, the air bubble generation phenomenon is more obvious, so that a worker can conveniently identify the position of the air hole, and the positions of the air outlet holes can be accurately analyzed through electric signals by arranging a plurality of groups of uniformly distributed position measuring units and the matching between the driving modules, so that the situation that the worker forgets or omits the position of the air hole is avoided, and the whole detection period is shortened.
Drawings
FIG. 1 is a schematic structural diagram of a detection apparatus according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic structural view of the detection device at A in the embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a detection system in the detection apparatus according to the embodiment of the present invention;
FIG. 4 is a semi-sectional side view of a detection system in an embodiment of the present invention;
FIG. 5 is an enlarged schematic view of a valve manufacturing process at B in FIG. 3 according to an embodiment of the present invention;
FIG. 6 is a half sectional view of a position finding unit in the detecting system according to the embodiment of the present invention;
FIG. 7 is an assembly view of a position finding unit in the detecting system according to the embodiment of the present invention;
FIG. 8 is a schematic structural diagram of an inflation module in the detection apparatus according to the embodiment of the present invention;
fig. 9 is a flow chart of a detection method used in the valve production process according to the embodiment of the valve.
The reference numerals in the schematic drawings illustrate:
1-detection box, 2-water tank, 3-controller, 4-sliding seat, 5-telescopic rod, 6-sliding block, 7-positioning bolt, 8-positioning hole, 9-tension spring, 10-detection system, 101-mounting frame, 102-connecting seat, 103-screen frame, 104-position-finding unit, 1041-fixing seat, 1042-sliding rod, 1043-bubble head, 1044-pressure sensor, 105-roller, 106-contact seat, 107-driving seat, 108-ball, 109-spiral groove, 1010-air-receiving sleeve seat, 1011-driving shaft, 1012-matching seat, 1013-plugging head, 1014-air bag, 11-guide seat, 12-bulge, 13-inflation module, 131-inflation tube, 132-piston, 133-collar, 134-magnet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments of the present invention, belong to the protection scope of the present invention, and the present invention is further described with reference to the embodiments below.
Referring to fig. 1 to 8, in an embodiment of the present application, a detection method for use in a valve production process includes a detection apparatus for use in the valve production process, where the detection apparatus includes a detection box 1, a water tank 2, and a controller 3, the water tank 2 and the controller 3 are both disposed on the detection box 1, and the water tank 2 communicates with the detection box 1, and further includes:
the sliding seat 4 is movably arranged in the detection box 1;
the limiting bracket is arranged between the sliding seat 4 and the detection box 1 and is used for fixing the position of the sliding seat 4;
the detection system 10 is arranged on the sliding seat 4 and used for detecting the air tightness of the valve; and
the guide seat 11 is arranged in the detection box 1, the detection system 10 is in sliding fit with the guide seat 11, and the detection system 10 works when passing through the guide seat 11; wherein
The detection system 10 includes:
a mounting frame 101 provided on the sliding seat 4;
the connecting seats 102 are arranged in a group and symmetrically and movably arranged on the inner wall of the mounting frame 101;
the screen frames 103 are at least one group in number and are detachably arranged on the connecting seat 102, and a closed detection area is formed between the screen frames 103 in the same group;
a plugging head 1013 arranged on the connecting seat 102, wherein the interior of the plugging head 1013 is hollow, and an air bag 1014 is bonded at the hollow position in the plugging head 1013; and
the driving module is movably arranged on the mounting frame 101, is connected with the connecting seat 102 and is used for controlling the connecting seat 102 to move, and is in sliding fit with the guide seat 11;
the limit bracket is provided with an inflation module 13 communicated with the air bag 1014, and the air pressure value in the air bag 1014 can be adjusted through the inflation module 13 when the sliding seat 4 moves.
In the present embodiment, it is added that the plugging head 1013 is tapered, and a small diameter end of the plugging head 1013 is far away from the connection seat 102.
In the present embodiment, the limiting bracket includes a sliding block 6, a telescopic rod 5 and an elastic member;
the quantity of slider 6 is a set of and all the activity sets up in the fashioned guide slot in detection case 1 at least, and telescopic link 5 swing joint is between slider 6 and sliding seat 4, and the elastic component is connected between adjacent telescopic link 5.
The elastic member is preferably a tension spring 9 in this embodiment, the tension spring 9 is connected between the adjacent telescopic rods 5, and of course, a spring sheet or a spiral spring may be used instead of the tension spring 9, which is not listed here.
In addition, a positioning hole 8 is formed in the sliding block 6, a positioning bolt 7 is connected to the detection box 1 in a threaded mode, and the positioning screw is matched with the positioning hole 8.
Referring to fig. 9, in practical application, the detection method includes the following steps:
s100, detaching one screen frame 103, installing two ends of a valve between plugging heads 1013, plugging the valve through the conical plugging head 1013, controlling a water pump (not shown in the figure) in a water tank 2 to work through a controller 3 to discharge water into a detection box 1 until the water level reaches a height capable of smoothly detecting the air tightness of the valve, and rotating a positioning bolt 7 to separate the positioning bolt from a positioning hole 8;
s200, under the action of the total weight of the structures such as the valve, the mounting frame 101, the screen frame 103 and the like, the sliding block 6 is driven to move towards two sides along the guide groove, and under the action of the telescopic rod 5, the sliding seat 4, the valve and the whole detection system 10 move downwards in the detection box 1;
s300, in the process, the air bag 1014 in the plugging head 1013 is continuously inflated through the inflation module 13, the air bag 1014 expands in volume inside the valve, so that air in the valve is extruded, when the valve has air holes, the compressed air is discharged from the air hole position of the valve, a large amount of air bubbles are generated, and a worker can analyze the position of the air holes in the valve according to the air bubble generation position;
s400, when drive module is through guide holder 11, can also drive the valve rotation in connecting seat 102 and the screen frame 103, thereby adjusting valve' S position, avoid the gas pocket to be located the downside of valve and the phenomenon that leads to the bubble to produce should receive blocking of valve body and not obvious, further help the more clear position of finding out the gas pocket of staff, for the mode of tradition directly putting into the aquatic with the valve, the phenomenon of this device gassing is more obvious, and the position that the bubble produced obtains more easily, whole check-out time has been shortened.
Referring to fig. 1, 3, 4 and 5, as another preferred embodiment of the present application, the driving module includes:
a driving seat 107 disposed at one side of the mounting frame 101 and connected thereto;
the abutting seat 106 is movably arranged on the driving seat 107, the guide seat 11 is in sliding fit with the abutting seat 106, and a convex part 12 is arranged on the guide seat 11 and positioned on the moving path of the abutting seat 106;
a matching seat 1012 movably arranged on the mounting frame 101 and connected with the connecting seat 102;
one end of the driving shaft 1011 is movably inserted into the matching seat 1012 and the driving shaft 1011 is elastically connected with the matching seat 1012, the driving shaft 1011 is also connected with the abutting seat 106, a clamping strip is arranged on the driving shaft 1011, and a clamping groove matched with the clamping strip is arranged in the matching seat 1012; and
at least one ball 108 is slidably embedded in the abutting seat 106, and a spiral groove 109 in sliding fit with the ball 108 is formed in the driving seat 107.
In a specific case of this embodiment, one end of the abutting seat 106 is provided with a resistance reducing member, which is in sliding fit with the guide seat 11 and can reduce the frictional resistance between the abutting seat 106 and the guide seat 11.
Of course, the resistance reducing member may be a bead structure or a wheel structure, in this embodiment, the resistance reducing member is preferably a roller 105, the roller 105 is movably disposed on the interference seat 106, and the roller 105 is in sliding fit with the guide seat 11.
When sliding seat 4 and installation frame 101 move down as shown in fig. 1, gyro wheel 105 moves on guide holder 11 surface, when gyro wheel 105 moves on bellying 12, the direction of base 106 moves to the right as shown in fig. 5, under the sliding fit effect between ball 108 and spiral groove 109, drive shaft 1011 rotates, and under the cooperation between card strip and draw-in groove, drive installation frame 101 on cooperation seat 1012 and the connecting seat 102 and rotate, and then constantly adjust the position of valve, when avoiding the position of gas pocket to be in the downside of valve, the gas pocket phenomenon of combustion gas is not directly perceived or is difficult to be discover by the staff, and then make things convenient for the better position of finding gas pocket on the valve of staff.
Referring to fig. 1, 3, 5 and 8, as another preferred embodiment of the present invention, the driving shaft 1011 is hollow, the driving shaft 1011 is sleeved with an air receiving sleeve seat 1010, the air receiving sleeve seat 1010 is communicated with the air bag 1014 through the driving shaft 1011 and the mating seat 1012, and the air receiving sleeve seat 1010 is further communicated with the inflation module 13.
In the present embodiment, the inflation module 13 includes an inflation tube 131, a piston 132, a collar 133, and a magnet 134;
the gas tube 131 is connected with the sliding seat 4, the number of the pistons 132 is the same as that of the gas sleeve seats 1010, the pistons are movably arranged in the gas tube 131, the gas tube 131 is connected with the gas sleeve seats 1010, the lantern ring 133 is movably sleeved on the outer wall of the gas tube 131, and magnets 134 are arranged in the lantern ring 133 and the pistons 132.
In this embodiment, the material of the magnet 134 is not limited to realize the synchronous movement of the collar 133 and the piston 132, and an electromagnet or a permanent magnet may be used instead, which is not limited in this embodiment.
Under the action of the gravity of the valve, when the sliding seat 4 and the whole detection system 10 move downwards as shown in fig. 1, the angle between the telescopic rods 5 gradually increases, under the action of the attractive force between the magnets 134, the telescopic rods 5 drive the lantern ring 133 to move on the surface of the inflation tube 131 and simultaneously drive the piston 132 to move in the inflation tube 131, the air in the inflation tube 131 is discharged into the air bag 1014 in the plugging head 1013 along the air receiving sleeve seat 1010 and the driving shaft 1011, and the air bag 1014 expands in the valve, so that the air in the valve is extruded out, and a large amount of bubbles are generated in the water in the air holes of the valve.
Referring to fig. 1, 3, 4, 5, 6 and 7, as another preferred embodiment of the present application, the detecting system 10 further includes a plurality of sets of position detecting units 104 for detecting the position of the valve leakage, and the plurality of sets of position detecting units 104 are uniformly disposed on the screen frame 103 and electrically connected to the controller 3.
In this embodiment, each set of the position finding units 104 includes:
a fixed seat 1041 disposed in the screen frame 103;
the sliding rod 1042 is movably arranged on the fixed seat 1041 and is elastically connected with the fixed seat 1041;
the bubble head 1043 is arranged on the inner side of the screen frame 103 and connected with the sliding rod 1042; and
and the monitoring element is arranged between the sliding rod 1042 and the fixed seat 1041 and is used for monitoring the position of the sliding rod 1042 relative to the fixed seat 1041.
The monitoring element may be, without limitation, an infrared distance measuring sensor or a laser distance measuring sensor, in this embodiment, the monitoring element is preferably a pressure sensor 1044, the pressure sensor 1044 is disposed in the fixing base 1041 and located on the moving path of the sliding rod 1042, and the type of the pressure sensor 1044 may be optimally selected according to practical situations, and is not specifically limited herein.
When the valve has an air hole to cause poor air tightness, the air bag 1014 expands to cause the air inside the valve to be discharged from the air hole to form a large amount of air bubbles, the generated air bubbles move upwards in the vertical direction under the action of buoyancy, when the air hole is positioned at the lower side of the valve as shown in fig. 1, due to the blocking effect of the valve body and the flow of water when the mounting frame 101 rotates, the displacement of the air bubbles formed by the discharged air is deviated and the interference force between the air bubbles and the air bubbles 1043 is reduced (non-vertical contact), the air bubbles 1043 and the sliding rod 1042 cannot move relative to the fixed seat 1041, but when the mounting frame 101 rotates to adjust the position of the air hole to be positioned at the upper side of the detection area in the direction shown in fig. 1, the air bubbles discharged by the air vertically float upwards under the action of inertia and directly interfere with the air bubbles 1043, so as to drive the sliding rod 1042 directly above the sliding rod 1044 to move relative to the fixed seat 1041, and the pressure sensor 1044 is squeezed, the concrete position that will receive extruded bubble head 1043 finally feeds back to controller 3, and the staff can work controller 3 accurate location gas pocket's position to repair for the later stage provides convenience, has shortened detection cycle.
It should be particularly noted that all the elastic connections referred to in this application may be replaced by springs, elastic sheets or elastic rubber structures, and the corresponding optimal choice may be made according to actual situations, which is not specifically limited herein.
The working principle of the application is as follows:
one of the screen frames 103 is disassembled, two ends of the valve are installed between the plugging heads 1013, the valve is plugged by the tapered plugging head 1013, and the controller 3 controls the water pump (not shown in the figure) in the water tank 2 to work to discharge water into the detection box 1 until the water level reaches a height capable of smoothly detecting the air tightness of the valve, at this time, the positioning bolt 7 is rotated to be separated from the positioning hole 8, the slide block 6 is driven to move towards two sides along the guide groove under the action of the total weight of the valve, the installation frame 101 and the screen frame 103, and the slide seat 4, the valve and the whole detection system 10 move downwards in the detection box 1 under the action of the telescopic rod 5, in the process, the roller 105 moves on the surface of the guide seat 11, when the roller 105 moves on the bulge 12, the contact seat 106 moves towards the right side as shown in fig. 5, under the sliding fit action between the ball 108 and the spiral groove 109, the driving shaft 1011 is driven to rotate, under the matching action between the clamping strips and the clamping grooves, the matching seat 1012 and the mounting frame 101 on the connecting seat 102 are driven to rotate, the position of the valve is further adjusted continuously, meanwhile, the angle between the telescopic rods 5 is gradually increased, under the action of the attraction force between the magnets 134, the telescopic rods 5 drive the lantern ring 133 to move on the surface of the inflation tube 131, meanwhile, the piston 132 is also driven to move in the inflation tube 131, the air in the inflation tube 131 is discharged into the air bag 1014 in the plugging head 1013 along the air connecting sleeve seat 1010 and the driving shaft 1011, the air bag 1014 expands in the valve, the air bag 1014 expands to discharge the air in the valve from the air holes to form a large amount of air bubbles, the generated air bubbles move upwards in the vertical direction under the action of buoyancy, when the air holes are positioned at the lower side of the valve shown in fig. 1, due to the blocking effect of the valve body and the flow of water flow when the valve 101 rotates, the displacement of the air bubble that leads to the exhaust air to form takes place the skew and cut down (non-perpendicular contact) with the conflict power between the bubble head 1043, can not make the relative fixing base 1041 removal of bubble head 1043 and slide bar 1042, but when the position that the installation frame 101 rotated the adjustment gas pocket was located the upside of the detection zone of the direction that fig. 1 shows, the air combustion bubble is perpendicular come-up and directly contradicts with bubble head 1043 under inertial effect, drive the relative fixing base 1041 removal of slide bar 1042 directly over it, make pressure sensor 1044 receive extrusion work, the controller 3 is fed back to the concrete position that finally will receive extruded bubble head 1043, the staff can the accurate position of locating the gas pocket of work controller 3, thereby repair work for the later stage provides convenience, detection cycle has been shortened.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. The detection method for the valve production engineering is characterized by comprising a detection device for the valve production engineering, wherein the detection device comprises a detection box, a water tank and a controller, the water tank and the controller are both arranged on the detection box, the water tank is communicated with the detection box, and the detection method further comprises the following steps:
the sliding seat is movably arranged in the detection box;
the limiting bracket is arranged between the sliding seat and the detection box and used for fixing the position of the sliding seat;
the detection system is arranged on the sliding seat and used for detecting the air tightness of the valve; and
the detection system is in sliding fit with the guide seat, and the detection system works when passing through the guide seat; wherein
The detection system comprises:
the mounting frame is arranged on the sliding seat;
the connecting seats are arranged in a group and symmetrically and movably arranged on the inner wall of the mounting frame;
the screen frames are at least one group in number and are detachably arranged on the connecting seat, and a closed detection area is formed between the screen frames in the same group;
the plugging head is arranged on the connecting seat, the interior of the plugging head is hollow, and an air bag is bonded at the hollow position in the plugging head; and
the driving module is movably arranged on the mounting frame, is connected with the connecting seat and is used for controlling the movement of the connecting seat, and is in sliding fit with the guide seat;
the limiting bracket is provided with an inflation module communicated with the air bag, and the air pressure value in the air bag can be adjusted through the inflation module when the sliding seat moves; the limiting bracket comprises a sliding block, a telescopic rod and an elastic piece;
the number of the sliding blocks is at least one group, the sliding blocks are movably arranged in guide grooves formed in the detection box, the telescopic rods are movably connected between the sliding blocks and the sliding seats, and the elastic pieces are connected between the adjacent telescopic rods;
the detection method comprises the following steps:
one of the screen frames is removed, two ends of the valve are installed between the plugging heads, and meanwhile, the water pump in the water tank is controlled by the controller to work to discharge water into the detection tank until the water level reaches the height capable of smoothly detecting the air tightness of the valve;
under the action of the total weight of the valve, the mounting frame and the screen frame, the sliding blocks are driven to move towards two sides along the guide grooves, and the sliding seat, the valve and the whole detection system move downwards in the detection box under the action of the telescopic rods;
the air bag in the plugging head is continuously inflated through the inflation module, the air bag expands in volume inside the valve, so that air in the valve is extruded, when the valve has air holes, the compressed air can be discharged from the air hole position of the valve to generate a large amount of air bubbles, and a worker can analyze the position of the air holes in the valve according to the air bubble generation position;
when drive module process guide holder, can also drive the valve rotation in connecting seat and the screen cloth frame to the position of adjusting valve avoids the gas pocket to be located the downside of valve and the phenomenon that leads to the bubble to produce should receive blockking and not obvious of valve body, further helps the more clear position of finding out the gas pocket of staff.
2. The detecting method for valve production engineering according to claim 1, wherein the plugging head is tapered, and the small diameter end of the plugging head is far away from the connecting seat.
3. The detection method for the valve production engineering according to claim 1, wherein a positioning hole is formed in the sliding block, a positioning bolt is connected to the detection box in a threaded manner, and the positioning screw is matched with the positioning hole.
4. The detection method for valve production engineering according to claim 1, wherein the driving module comprises:
the driving seat is arranged on one side of the mounting frame and is connected with the mounting frame;
the abutting seat is movably arranged on the driving seat, the guide seat is in sliding fit with the abutting seat, and a bulge part is arranged on the guide seat and positioned on the moving path of the abutting seat;
the matching seat is movably arranged on the mounting frame and is connected with the connecting seat;
one end of the driving shaft is movably inserted in the matching seat and is elastically connected with the matching seat, the driving shaft is also connected with the abutting seat, the driving shaft is provided with a clamping strip, and a clamping groove matched with the clamping strip is arranged in the matching seat; and
the number of the balls is at least one, the balls are embedded on the contact seat in a sliding mode, and spiral grooves matched with the balls in a sliding mode are formed in the driving seat.
5. The detection method for the valve production engineering, according to claim 4, wherein one end of the abutting seat is provided with a resistance reducing piece, the resistance reducing piece is in sliding fit with the guide seat, and friction resistance between the abutting seat and the guide seat can be reduced.
6. The detection method for the valve production engineering according to claim 5, wherein the driving shaft is hollow, an air receiving sleeve seat is sleeved on the driving shaft, the air receiving sleeve seat is communicated with the air bag through the driving shaft and the matching seat, and the air receiving sleeve seat is further communicated with the inflation module.
7. The detection method for the valve production engineering is characterized in that the inflation module comprises an inflation tube, a piston, a collar and a magnet;
the gas tube is connected with the sliding seat, the number of the pistons is the same as that of the gas sleeve seats, the pistons are movably arranged in the gas tube, the gas tube is connected with the gas sleeve seats, the lantern ring is movably sleeved on the outer wall of the gas tube, and magnets are arranged in the lantern ring and the pistons.
8. The detection method for the valve production engineering according to claim 1, wherein the detection system further comprises a plurality of sets of positioning units for detecting the gas leakage position of the valve, and the plurality of sets of positioning units are uniformly arranged on the screen frame and electrically connected with the controller.
9. The method as claimed in claim 8, wherein each set of the position measuring units comprises:
the fixed seat is arranged in the screen frame;
the sliding rod is movably arranged on the fixed seat and is elastically connected with the fixed seat;
the bubble head is arranged on the inner side of the screen frame and is connected with the sliding rod; and
and the monitoring element is arranged between the sliding rod and the fixed seat and used for monitoring the position of the sliding rod relative to the fixed seat.
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| CN117268647A (en) * | 2023-09-15 | 2023-12-22 | 德恒电子有限公司 | High-precision valve tightness detection device |
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