CN110398535B - Valve body detection method in valve production process - Google Patents
Valve body detection method in valve production process Download PDFInfo
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- CN110398535B CN110398535B CN201910742325.XA CN201910742325A CN110398535B CN 110398535 B CN110398535 B CN 110398535B CN 201910742325 A CN201910742325 A CN 201910742325A CN 110398535 B CN110398535 B CN 110398535B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/045—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes the cleaning devices being rotated while moved, e.g. flexible rotating shaft or "snake"
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
- G01N27/84—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields by applying magnetic powder or magnetic ink
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- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a valve body detection method in the valve production process, which comprises the following steps: a. putting the cast valve body into a cleaning pool for pre-cleaning so as to remove grease on the surface of the valve body; b. taking the cleaned valve body out of the cleaning pool, sending the valve body into a drying chamber, and drying the moisture on the surface of the valve body; c. putting the dried valve body into a magnetic powder flaw detector, and performing flaw detection treatment on the surface of the valve body in a mode of spraying magnetic powder on the surface of the valve body; d. repairing the flaw on the surface of the valve body, and then carrying out flaw detection on the surface of the valve body until the surface of the valve body has no dents and defects; e. putting the valve body into a demagnetizer, and removing magnetism on the valve body; f. and (4) putting the demagnetized valve body into a cleaning device, thoroughly cleaning the residual magnetic powder on the valve body, and removing the magnetic powder on the valve body.
Description
Technical Field
The invention belongs to the technical field of valve machining, and particularly relates to a valve body detection method in a valve production process.
Background
Valves are plumbing accessories used to open and close a pipe, control flow direction, regulate and control parameters of the transport medium (temperature, pressure and flow). According to their function, they can be classified into shut-off valves, check valves, regulating valves, and the like.
The valve shell is called a valve body, the surface of the valve body has a few defects after casting, flaw detection needs to be carried out on the surface of the valve body to determine the positions of the defects and then the defects are reprocessed, a magnetic powder inspection is carried out in a common flaw detection method, magnetic powder is sprayed on the surface of the valve body during the magnetic powder inspection, the magnetic powder on the surface of the valve body needs to be removed after the flaw detection is finished, and after the magnetic powder on the valve body is removed by cleaning the valve body in the prior art, the magnetic powder is mixed into a cleaning solution to be inconvenient to recycle, so that more magnetic powder is wasted, and the production cost of the valve is increased.
Disclosure of Invention
The invention provides a valve body detection method in the valve production process in order to overcome the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a valve body detection method in the valve production process comprises the following steps:
a. putting the cast valve body into a cleaning pool for pre-cleaning so as to remove grease on the surface of the valve body;
b. taking the cleaned valve body out of the cleaning pool, sending the valve body into a drying chamber, and drying the moisture on the surface of the valve body;
c. putting the dried valve body into a magnetic powder flaw detector, and performing flaw detection treatment on the surface of the valve body in a mode of spraying magnetic powder on the surface of the valve body;
d. repairing the flaw on the surface of the valve body, and then carrying out flaw detection on the surface of the valve body until the surface of the valve body has no dents and defects;
e. putting the valve body into a demagnetizer, and removing magnetism on the valve body;
f. putting the demagnetized valve body into cleaning equipment, thoroughly cleaning residual magnetic powder on the valve body, and removing the magnetic powder on the valve body;
the cleaning equipment in the step f comprises a cleaning box, a clamping jaw assembly arranged in the cleaning box and a cleaning assembly arranged below the clamping jaw assembly, wherein a cleaning cavity is arranged in the cleaning box, a magnetic plate is arranged at the bottom of the cleaning cavity, a first movable cavity is arranged on the magnetic plate, a first sliding groove is formed in the inner wall of the first movable cavity, a first sliding block is arranged in the first sliding groove, a first push plate is rotatably connected onto the first sliding block, a first opening is formed in the end opening of the first movable cavity, a supporting plate is arranged at one end of the first push plate, when the magnetic plate is laid at the bottom of the cleaning cavity, the first push plate and the magnetic plate are in a vertical state, and the supporting plate is arranged at the top of the cleaning box; when the magnetic plate is installed, the first push plate is pulled out of the first movable cavity, the first slide block moves to one end of the first sliding groove, the first push plate is rotated around the connecting point, the first push plate is rotated to be vertical to the magnetic plate, the first push plate is contacted with the side wall of the first opening, and the magnetic plate is placed at the bottom of the cleaning cavity; after the valve body is demagnetized, the valve body is conveyed into a cleaning box through a manipulator, a clamping jaw assembly is matched with the valve body to fix the valve body in a cleaning cavity, the cleaning assembly is matched with cleaning liquid to clean the valve body, magnetic powder remained on the valve body is washed in the cleaning liquid, the magnetic powder in the cleaning liquid is adsorbed on a magnetic plate under the magnetic force of the magnetic plate, and the magnetic powder in the cleaning liquid is collected on the magnetic plate at the bottom of the cleaning cavity; after the valve body is cleaned, the valve body is taken out from the cleaning cavity, then the supporting plate is pulled to move upwards, the supporting plate drives the magnetic plate to move upwards, the magnetic plate is taken out from the cleaning cavity, and magnetic powder on the magnetic plate is collected.
After the valve body enters the cleaning cavity, the side wall of the valve body is cleaned under the action of the cleaning assembly, so that magnetic powder on the valve body is mixed into cleaning liquid, the magnetic powder falls towards the bottom in the cleaning cavity under the action of the gravity of the magnetic powder and the magnetic force of the magnetic plate, and the magnetic powder is collected on the magnetic plate, so that the magnetic powder is prevented from being suspended in the cleaning liquid to influence the cleaning effect of the cleaning liquid on the valve body; the magnetic powder is collected by directly taking the magnetic plate out of the cleaning cavity, so that the magnetic powder cleaned from the valve body can be directly collected, the difficulty in collecting the magnetic powder is reduced, the waste of the magnetic powder is reduced, and the magnetic powder can be recycled for multiple times; under the mutual matching of the first push plate and the support plate, the magnetic plate can be directly taken out from the cleaning cavity, so that the difficulty in recovering magnetic powder is reduced; the first movable cavity provides the containing effect for the first push plate, and the magnetic plate is prevented from occupying a large space after being taken out from the cleaning cavity, so that the magnetic plate can be directly moved to carry the magnetic powder.
And c, setting the temperature of the drying chamber in the step b to be 65 ℃, placing the valve body into the drying chamber, performing centrifugal motion, and drying the water on the surface of the valve body by matching with the drying chamber.
And c, after the valve body in the step b is dried, placing the valve body at an air circulation position, and after the surface temperature of the valve body is reduced to room temperature, placing the valve body into a magnetic powder flaw detector for detection.
And e, after the valve body in the step e is placed in a demagnetizer, placing the valve body in a direct current electromagnetic field, continuously changing the current direction and gradually reducing the current to a zero value so as to finish the demagnetization operation of the valve body.
An equipment box is arranged on the side wall of the cleaning box, a first air cylinder is arranged in the equipment box, and the cleaning assembly comprises a first push rod arranged on a piston rod of the first air cylinder, a connecting disc arranged at one end of the first push rod, a first connecting rod arranged on the connecting disc and a second push rod arranged in the first push rod; the first connecting rod is provided with a plurality of bristles, the first push rod is provided with a first driving motor for driving the connecting disc to rotate, the first push rod penetrates through the cleaning cavity, the first push rod is provided with a second movable cavity, the second movable cavity is communicated with the cleaning cavity, the second push rod is arranged in the second movable cavity, and the first cylinder can push the second push rod to move along the inner wall of the second movable cavity; after the valve body is fixed in the cleaning cavity by the clamping jaw assembly, the first openings on two sides of the valve body are respectively opposite to the cleaning assemblies on two sides of the cleaning box, the first cylinder pushes the first push rod to move forwards to enable the connecting disc to be in contact with the end face of the valve body, bristles on the first connecting rod are in contact with the surface of the valve body, the first cylinder drives the second push rod to move along the inner wall of the second movable cavity to enable the second push rod to extend out of the second movable cavity, the second push rod enters the valve body, the first driving motor drives the connecting disc to rotate, the connecting disc drives the first connecting rod to rotate around the side wall of the valve body, and the bristles are in contact with the side wall of the valve body to scrape magnetic powder on the side wall of the valve body and clean the surface of the valve body; the second push rod cleans the inner wall of the valve body in the valve body to complete the post-cleaning operation of the valve body; under the action of a first driving motor, the connecting disc is driven to rotate, so that the connecting disc drives the first connecting rod to rotate around the side wall of the valve body, and the bristles are fully contacted with the side wall of the valve body to brush away magnetic powder on the surface of the valve body, so that the magnetic powder is prevented from remaining on the surface of the valve body; through the mutual matching of the first connecting rod and the second push rod, the surface and the interior of the valve body are respectively cleaned, the cleaning effect on the valve body is improved, and magnetic powder on the valve body is effectively removed; the valve body cleaning device has the advantages that the first push rod and the second push rod are driven to move under the action of the first air cylinder, the positions of the first push rod and the second push rod are controlled, so that the valve body is cleaned under the action of the first push rod and the second push rod, the valve body cleaning operation is more automatic, and the valve body cleaning efficiency is improved.
A first movable groove is formed in the side wall of the cleaning cavity, a second sliding groove is formed in the inner wall of the first movable groove, the clamping jaw assembly comprises a movable block arranged in the first movable groove, a second connecting rod arranged on the movable block and a clamping jaw arranged on the second connecting rod, and a second sliding block matched with the second sliding groove is arranged on the side wall of the movable block; the side wall of the cleaning box is provided with an installation block, the installation block is provided with a second air cylinder, a piston rod of the second air cylinder is arranged at the bottom of the movable block, the movable block is provided with a second movable groove, the inner wall of the second movable groove is provided with a third sliding groove, a second connecting rod is arranged in the second movable groove, the side wall of the second connecting rod is provided with a third sliding block matched with the third sliding groove, the second connecting rod is rotatably connected onto the third sliding block, and the top of the first movable groove is provided with a second opening matched with the second connecting rod; the valve body is placed into the cleaning cavity by the manipulator, the third sliding block moves along the third sliding groove, the clamping jaw is enabled to approach to the valve body direction, the clamping jaw is contacted with the side wall of the valve body to fix the valve body, the second cylinder drives the movable block to move downwards, the movable block drives the valve body to move downwards, the valve body is immersed into the cleaning liquid, and the valve body is cleaned; after the valve body is cleaned, the second cylinder pushes the movable block to move to the top of the first movable groove, the second connecting rod is turned upwards to enable the second connecting rod to be turned around the connecting point to be perpendicular to the movable block, the side wall of the second connecting rod is in contact with the inner wall of the second opening, the supporting plate is pulled to enable the supporting plate to drive the magnetic plate to move upwards, the magnetic plate is taken out of the cleaning cavity, and magnetic powder on the magnetic plate is recycled; the second connecting rod is in a vertical state by turning over the second connecting rod, so that the second connecting rod is turned out from the cleaning cavity, the magnetic plate is prevented from being blocked by the second connecting rod, and the magnetic plate can be conveniently taken out from the cleaning cavity to collect magnetic powder; under the matching of the second cylinder and the movable block, the valve body is conveniently fixed through the clamping jaw assembly, so that the valve body moves in the cleaning cavity along with the movable block, and the valve body is conveniently cleaned and recycled; under the mutual matching of the third sliding groove and the third sliding block, the movement of the second connecting rod is limited, so that the clamping jaws are aligned and then close to each other, the fixing effect of the clamping jaws on the valve body is improved, and the valve body is prevented from falling on the magnetic plate to damage the magnetic plate during cleaning; the second opening provides the headspace for the rotation of second connecting rod, provides the holding power for the second connecting rod simultaneously, makes the second connecting rod rotate to vertical state after-fixing on vertical state to take the magnetic sheet.
The invention has the following advantages: the magnetic powder is collected by directly taking the magnetic plate out of the cleaning cavity, so that the magnetic powder cleaned from the valve body is directly collected, the difficulty in collecting the magnetic powder is reduced, and the magnetic powder waste is reduced, so that the magnetic powder can be recycled for multiple times.
Drawings
FIG. 1 is a schematic view of the structure of the cleaning apparatus of the present invention.
FIG. 2 is a first cross-sectional view of the cleaning apparatus of the present invention.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is an enlarged view of fig. 2 at B.
Fig. 5 is an enlarged view of fig. 2 at C.
Fig. 6 is an enlarged view of fig. 2 at D.
FIG. 7 is a schematic sectional view of a second embodiment of the cleaning apparatus of the present invention.
Fig. 8 is an enlarged view of fig. 7 at E.
FIG. 9 is a third schematic sectional view of the cleaning apparatus of the present invention.
Fig. 10 is an enlarged view of fig. 9 at F.
FIG. 11 is a fourth schematic sectional view of the cleaning apparatus of the present invention.
Fig. 12 is an enlarged view at G in fig. 11.
FIG. 13 is a schematic cross-sectional view of a fifth embodiment of the cleaning apparatus of the present invention.
Fig. 14 is an enlarged view of fig. 13 at H.
Fig. 15 is an enlarged view at I in fig. 13.
Fig. 16 is a schematic view of the valve body structure.
Detailed Description
A valve body detection method in the valve production process comprises the following steps: a. putting the cast valve body into a cleaning pool for pre-cleaning so as to remove grease on the surface of the valve body; b. taking the cleaned valve body out of the cleaning pool, sending the valve body into a drying chamber, and drying the moisture on the surface of the valve body; c. putting the dried valve body into a magnetic powder flaw detector, and performing flaw detection treatment on the surface of the valve body in a mode of spraying magnetic powder on the surface of the valve body; d. repairing the flaw on the surface of the valve body, and then carrying out flaw detection on the surface of the valve body until the surface of the valve body has no dents and defects; e. putting the valve body into a demagnetizer, and removing magnetism on the valve body; f. putting the demagnetized valve body into cleaning equipment, thoroughly cleaning residual magnetic powder on the valve body, and removing the magnetic powder on the valve body; the temperature of the drying chamber in the step b is 65 ℃, the valve body is placed in the drying chamber and then performs centrifugal motion, and the drying chamber is matched to dry the moisture on the surface of the valve body; after the valve body in the step b is dried, placing the valve body at an air circulation position, cooling the surface temperature of the valve body to room temperature, and then placing the valve body into a magnetic powder flaw detector for detection; and e, after the valve body in the step e is placed in a demagnetizer, placing the valve body in a direct current electromagnetic field, continuously changing the current direction and gradually reducing the current to a zero value so as to finish the demagnetization operation of the valve body.
As shown in fig. 1 to 16, the cleaning apparatus in step f includes a cleaning box 1, a clamping jaw assembly disposed in the cleaning box 1, and a cleaning assembly disposed below the clamping jaw assembly, a cleaning cavity is disposed in the cleaning box 1, a magnetic plate 3 is disposed at the bottom of the cleaning cavity, a first movable cavity 32 is disposed on the magnetic plate 3, a first sliding groove 321 is disposed on an inner wall of the first movable cavity, a first sliding block is disposed in the first sliding groove 321, a first push plate 31 is rotatably connected to the first sliding block, a first opening is disposed at an end of the first movable cavity, a support plate 311 is disposed at one end of the first push plate 31, when the magnetic plate 3 is laid at the bottom of the cleaning cavity, the first push plate 31 and the magnetic plate are in a vertical state, and the support plate 311 is disposed at the top of the cleaning box 1; when the magnetic plate 3 is installed, the first push plate 31 is pulled out from the first movable cavity 32, the first slide block moves to one end of the first sliding groove 321, the first push plate 31 is rotated around a connecting point, the first push plate 31 is rotated to be vertical to the magnetic plate 3, the first push plate 31 is contacted with the side wall of the first opening, and the magnetic plate 3 is placed at the bottom of the cleaning cavity; after the valve body 4 is demagnetized, the valve body is conveyed into the cleaning box 1 through a manipulator, the clamping jaw assembly is matched with the valve body to fix the valve body in the cleaning cavity, the cleaning assembly is matched with cleaning liquid to clean the valve body, magnetic powder remained on the valve body is washed in the cleaning liquid, the magnetic powder in the cleaning liquid is adsorbed on the magnetic plate under the magnetic force of the magnetic plate 3, and the magnetic powder in the cleaning liquid is collected on the magnetic plate 3 at the bottom of the cleaning cavity; after the valve body washs the completion, takes out the valve body from wasing the intracavity, stimulates backup pad 311 up-movement afterwards, makes backup pad 311 drive magnetic sheet 3 up-movement, takes out magnetic sheet 3 from wasing the intracavity, collects the magnetic on the magnetic sheet 3.
After the valve body enters the cleaning cavity, the side wall of the valve body is cleaned under the action of the cleaning assembly, so that magnetic powder on the valve body is mixed into cleaning liquid, the magnetic powder falls towards the bottom in the cleaning cavity under the action of the gravity of the magnetic powder and the magnetic force of the magnetic plate, and the magnetic powder is collected on the magnetic plate, so that the magnetic powder is prevented from being suspended in the cleaning liquid to influence the cleaning effect of the cleaning liquid on the valve body; the magnetic powder is collected by directly taking the magnetic plate out of the cleaning cavity, so that the magnetic powder cleaned from the valve body can be directly collected, the difficulty in collecting the magnetic powder is reduced, the waste of the magnetic powder is reduced, and the magnetic powder can be recycled for multiple times; under the mutual matching of the first push plate and the support plate, the magnetic plate can be directly taken out from the cleaning cavity, so that the difficulty in recovering magnetic powder is reduced; the first movable cavity provides the containing effect for the first push plate, and the magnetic plate is prevented from occupying a large space after being taken out from the cleaning cavity, so that the magnetic plate can be directly moved to carry the magnetic powder.
An equipment box 11 is arranged on the side wall of the cleaning box 1, a first air cylinder 111 is arranged in the equipment box 11, and the cleaning assembly comprises a first push rod 2 arranged on a piston rod of the first air cylinder 111, a connecting disc 21 arranged at one end of the first push rod 2, a first connecting rod 22 arranged on the connecting disc 21 and a second push rod 23 arranged in the first push rod 2; a plurality of bristles are arranged on the first connecting rod 22, a first driving motor 27 for driving the connecting disc 21 to rotate is arranged on the first push rod 2, the first push rod 2 penetrates through the cleaning cavity, a second movable cavity is arranged on the first push rod 2 and is communicated with the cleaning cavity, the second push rod 23 is arranged in the second movable cavity, and the first cylinder 111 can push the second push rod 23 to move along the inner wall of the second movable cavity; after the valve body is fixed in the cleaning cavity by the clamping jaw assembly, the first openings on two sides of the valve body are respectively opposite to the cleaning assemblies on two sides of the cleaning box 1, the first cylinder 111 pushes the first push rod 2 to move forwards to enable the connecting disc 21 to be in contact with the end face of the valve body, bristles on the first connecting rod 22 are in contact with the surface of the valve body, the first cylinder 111 drives the second push rod 23 to move along the inner wall of the second movable cavity, the second push rod 23 extends out of the second movable cavity, the second push rod 23 enters the interior of the valve body, the first driving motor 27 drives the connecting disc 21 to rotate, the connecting disc 21 drives the first connecting rod 22 to rotate around the side wall of the valve body, the bristles are in contact with the side wall of the valve body to scrape magnetic powder on the side wall of the valve body, and the surface of the valve body is cleaned; the second push rod 23 cleans the inner wall of the valve body in the valve body to complete the post-cleaning operation of the valve body; under the action of a first driving motor, the connecting disc is driven to rotate, so that the connecting disc drives the first connecting rod to rotate around the side wall of the valve body, and the bristles are fully contacted with the side wall of the valve body to brush away magnetic powder on the surface of the valve body, so that the magnetic powder is prevented from remaining on the surface of the valve body; through the mutual matching of the first connecting rod and the second push rod, the surface and the interior of the valve body are respectively cleaned, the cleaning effect on the valve body is improved, and magnetic powder on the valve body is effectively removed; the valve body cleaning device has the advantages that the first push rod and the second push rod are driven to move under the action of the first air cylinder, the positions of the first push rod and the second push rod are controlled, so that the valve body is cleaned under the action of the first push rod and the second push rod, the valve body cleaning operation is more automatic, and the valve body cleaning efficiency is improved.
A third movable cavity is formed in the connecting disc, a first limiting plate 28 is arranged in the third movable cavity, the first limiting plate can rotate in the third movable cavity, a threaded rod is arranged on the first limiting plate, a first through hole matched with the threaded rod is formed in the side wall of the third movable cavity, a threaded hole matched with the threaded rod is formed in one end of a first connecting rod, and the first connecting rod is connected to the first limiting plate in a threaded mode; when the bristles are in contact with the side wall of the valve body, the first driving motor drives the connecting disc to rotate, the connecting disc drives the first connecting rod to rotate when rotating, the bristles are in contact with the side wall of the valve body to brush away magnetic powder on the side wall of the valve body, and the bristles drive the first connecting rod to rotate under the action of friction force between the valve body and the bristles, so that the bristles on the first connecting rod are uniformly in contact with the surface of the valve body; the cleaning liquid is stirred when the connecting disc and the first connecting rod rotate, so that the cleaning liquid is in a continuous flowing state, when the bristles on one side of the first connecting rod brush the magnetic powder on the side wall of the valve body, the bristles on one side of the first connecting rod rotate to the other side of the first connecting rod, so that the bristles are in contact with the cleaning liquid, the magnetic powder on the bristles is washed away from the bristles under the impact of the cleaning liquid, and the magnetic powder falls on the magnetic plate under the action of gravity and magnetic force, so that the magnetic powder is collected; under the continuous movement of the cleaning liquid, the cleaning liquid continuously collides with the side wall of the valve body, so that the cleaning effect of the cleaning liquid on the valve body is increased, and magnetic powder on the valve body is completely removed; when the magnetic plate is taken out of the cleaning cavity, the first connecting rod is rotated to rotate the threaded hole to be downwards rotated from the threaded rod, so that the first connecting rod is detached from the connecting disc, the magnetic plate can be directly taken out of the cleaning cavity, and the magnetic plate is prevented from being taken by the first connecting rod; after the first connecting rod is taken out from the cleaning cavity, the bristles on the first connecting rod can be conveniently cleaned, the magnetic powder in the bristle gaps is removed, and the cleaning effect of the bristles on the valve body is guaranteed.
A fourth movable cavity is arranged in the second push rod, a connecting shaft 24 is rotatably connected in the fourth movable cavity, threads are arranged on the side wall of the connecting shaft, a first equipment cavity is arranged at one end of the fourth movable cavity, a second driving motor 232 is arranged in the first equipment cavity, an output shaft of the second driving motor is fixedly connected with the connecting shaft, and a plurality of second through holes 234 communicated with the fourth movable cavity are formed in the side wall of the second push rod; the second push rod is made of a magnet; after the second push rod enters the valve body, the second push rods on the two sides of the cleaning cavity are in mutual contact, the second driving motor drives the connecting shaft to rotate, under the action of the threads on the connecting shaft, the connecting shaft is enabled to play a role in stirring cleaning liquid in the fourth movable cavity when rotating, the cleaning liquid in the fourth movable cavity is in a continuous motion state, the moving cleaning liquid enters the valve body from the second through hole and drives the cleaning liquid in the valve body to move, the cleaning liquid in the valve body is enabled to be in a continuous motion state, the interior of the valve body is cleaned, magnetic powder washed from the inner wall of the valve body falls on the second push rod, the magnetic powder is subjected to a suction effect under the magnetic force effect of the magnet, the magnetic powder is adsorbed on the second push rod, the magnetic powder is collected, and the magnetic powder is prevented from being adhered back to the inner wall of the valve body again.
A sixth movable cavity is formed in the first push rod, a connecting ring 211 matched with the sixth movable cavity is formed in the connecting disc, the sixth movable cavity is communicated with the equipment cavity, a driving wheel 271 in transmission fit with the connecting ring is arranged on the output shaft of the first driving motor, a limiting groove is formed in the side wall of the sixth movable cavity, and a fourth limiting plate 212 matched with the limiting groove is formed in the side wall of the connecting ring; under the mutual matching of the limiting groove and the fourth limiting plate, the limiting groove has a limiting effect on the connecting ring, and the connecting ring is fixed in the sixth movable cavity, so that the connecting disc can be stably connected to the first push rod; under the mutual cooperation of the driving wheel and the connecting ring, power is provided for the rotation of the connecting disc, so that the connecting disc can drive the first connecting rod to rotate around the side wall of the valve body, and the surface of the valve body is cleaned conveniently.
The side wall of the second push rod is provided with a plurality of annular grooves 233 matched with the second through holes, a rubber film is arranged in each annular groove, the bottom of each annular groove is provided with a connecting block 235, each connecting block is provided with a connecting groove, each rubber film is provided with a bump matched with the corresponding connecting groove, each rubber film is provided with a third opening matched with the corresponding second through hole, each third opening is of a straight-line structure, and each third opening is formed by directly using a knife to form a first opening of a sliding block on each rubber film; through mutually supporting of lug and spread groove, fix the rubber membrane in the annular, avoid the rubber membrane to deviate from in the annular, play the effect of blockking to the magnetic under third open-ended effect, make the magnetic can't enter into the fourth activity intracavity through the second through-hole, and the washing liquid in the fourth activity intracavity can be followed third opening department and flowed, washs the valve body is inside, collects the magnetic inside the valve body on the second push rod.
A fifth movable cavity matched with the first push rod is arranged on the side wall of the cleaning box, a second limiting plate 26 matched with the fifth movable cavity is arranged on the side wall of the first push rod, a third limiting plate 231 is arranged on the side wall of the second push rod, a limiting spring 25 is arranged on the third limiting plate, a third through hole is arranged at one end of the second movable cavity, a push block matched with the third through hole is arranged at one end of the second push rod, a piston rod of the first air cylinder is fixedly connected to the push block, when the first cylinder pushes the push block to move forward, the limit spring provides supporting force for the second push rod, so that the second push rod pushes the first push rod to move towards the cleaning cavity, when the second limit plate moves to one end of the fifth movable cavity, the connecting disc is contacted with the side wall of the valve body, under the matching of the second limiting plate and the fifth movable cavity, the connecting disc is prevented from generating large pressure on the side wall of the valve body, and the connecting disc and the valve body are protected; the first cylinder drives the piston rod to continue to extend out, so that the first cylinder pushes the second push rod to move forwards along the interior of the second movable cavity, and the third limiting plate compresses the limiting spring, so that the second push rod enters the valve body to clean the interior of the valve body; under the effect of connection pad, make the connection pad play the positioning action to the second push rod, make the second push rod insert valve body middle part position, promote the cleaning performance to the valve body.
Be equipped with on the washing intracavity wall with connection pad matched with first recess, when wasing the subassembly out of work, the connection pad is in first recess, provides accommodating space for the connection pad through first recess, makes the connection pad inlay on washing intracavity wall, avoids the connection pad to cause the hindrance to collecting of magnetic sheet.
A third movable groove 16 is formed in the side wall of the cleaning cavity, a mounting plate 17 is rotatably connected in the third movable groove, a third air cylinder 171 is arranged on the mounting plate, a piston rod of the third air cylinder penetrates through the mounting plate, a push block 172 is arranged on the piston rod of the third air cylinder, the push block is made of a magnet, and the magnetic force of the push block is smaller than that of the magnetic plate; a third driving motor matched with the mounting plate is arranged on the side wall of the third movable groove, and a second groove is formed in the bottom of the third movable groove; after the valve body is cleaned in the cleaning cavity, the first cylinder drives the first push rod to move back to drive the connecting disc to move towards the first groove, so that the connecting disc is embedded into the first groove, the second push rod moves along the inner wall of the second movable cavity, the second push rod enters the second movable cavity, the side wall of the second push rod is in contact with the inner wall of the second movable cavity, magnetic powder on the surface of the second push rod is scraped at the port of the second movable cavity, part of the magnetic powder directly falls onto the magnetic plate, and the other part of the magnetic powder is adhered to the port of the second movable cavity; the third cylinder pushes the push block to move downwards, the side wall of the push block is contacted with the inner wall of the cleaning cavity, magnetic powder on the port of the second movable cavity is scraped under the action of the push block, the push block moves towards the bottom of the cleaning box along the magnetic powder to enable the magnetic powder to be contacted with the magnetic plate, and the magnetic powder on the push block is collected on the magnetic plate under the action of the magnetic force of the magnetic plate, so that the magnetic powder is convenient to collect; the push block is supported by a magnet, so that the magnetic powder at the port of the second movable cavity is taken away together when the push block moves from the port of the second movable cavity, and the cleaning effect of the push block on the port of the second movable cavity is improved; when collecting the magnetic, third driving motor drive mounting panel rotates, makes the mounting panel drive the upset of third cylinder toward the second recess, and the third cylinder gets into the second recess under the rotation of mounting panel, prevents that magnetic sheet and mounting panel from producing the collision, can be convenient take out the magnetic sheet from wasing the intracavity.
A first movable groove is formed in the side wall of the cleaning cavity, a second sliding groove 18 is formed in the inner wall of the first movable groove, the clamping jaw assembly comprises a movable block 12 arranged in the first movable groove, a second connecting rod 13 arranged on the movable block 12 and a clamping jaw 131 arranged on the second connecting rod 13, and a second sliding block matched with the second sliding groove 18 is arranged on the side wall of the movable block 12; the side wall of the cleaning box 1 is provided with an installation block 15, the installation block 15 is provided with a second air cylinder 14, a piston rod of the second air cylinder 14 is arranged at the bottom of the movable block 12, the movable block 12 is provided with a second movable groove, the inner wall of the second movable groove is provided with a third sliding groove, the second connecting rod 13 is arranged in the second movable groove, the side wall of the second connecting rod 13 is provided with a third sliding block 124 matched with the third sliding groove, the second connecting rod 13 is rotatably connected to the third sliding block, and the top of the first movable groove is provided with a second opening matched with the second connecting rod 13; the valve body is placed into the cleaning cavity by the manipulator, the third sliding block moves along the third sliding groove, the clamping jaw 131 is enabled to approach the valve body, the clamping jaw 131 is contacted with the side wall of the valve body to fix the valve body, the second air cylinder 14 drives the movable block 12 to move downwards, the movable block 12 drives the valve body to move downwards, the valve body is immersed into the cleaning liquid, and the valve body is cleaned; after the valve body washs the completion, second cylinder 14 promotes movable block 12 and moves to first movable groove top, and second connecting rod 13 up overturns makes second connecting rod 13 overturn round the tie point to be the vertical state with movable block 12, and second connecting rod 13 lateral wall contacts with second opening inner wall, and pulling backup pad 311 makes backup pad 311 drive magnetic sheet 3 up-movement, takes out magnetic sheet 3 from the washing intracavity, carries out recycle to the magnetic on the magnetic sheet 3.
A second equipment cavity is formed in the movable block, a fifth movable cavity is formed in one side of the second equipment cavity, a fourth air cylinder 121 is arranged in the second equipment cavity, a piston rod of the fourth air cylinder penetrates through the fifth movable cavity, a second push plate 122 is arranged on the piston rod of the fourth air cylinder, a third push rod 123 is arranged on the second push plate, and the third push rod penetrates through a third sliding groove and is fixedly connected with a third sliding block; the position of the second connecting rod is adjusted under the action of the fourth cylinder, after the valve body is placed into the cleaning cavity, the fourth cylinder pushes the second push plate to move forwards, the second push plate pushes the third sliding block to move to one end of the third sliding groove, the clamping jaw is made to contact with the side wall of the valve body to fix the valve body, and therefore the valve body is conveyed to the cleaning cavity to be cleaned.
The cylinder and the driving motor in the application are schematic diagrams, and the specific structure of the cylinder and the driving motor is the same as that of the cylinder and the driving motor in the prior art.
After the valve body is overhauled, the valve body is conveyed into a cleaning cavity under the action of a mechanical arm, a seventh air cylinder pushes a second connecting rod to move forwards to enable a clamping jaw to be contacted with the side wall of the valve body, the valve body is fixed in the cleaning cavity under the action of the clamping jaw, a movable block is driven by the second air cylinder to move downwards to enable the valve body to be immersed into cleaning liquid, a first air cylinder pushes a first push rod to move forwards to enable a connecting disc to be contacted with a port of the valve body, bristles are contacted with the side wall of the valve body, after the connecting disc is contacted with the port of the valve body, the first air cylinder pushes a second push rod to enter the interior of the valve body, the second push rods on the left side and the right side are contacted, a first driving motor and a second driving motor respectively drive the connecting shaft and the connecting disc to rotate to clean the side wall and the interior of the valve body to remove residual magnetic powder on the valve body, after the valve body is cleaned, the second push rod enters a second movable cavity, the connecting disc enters a first groove, the second cylinder drive movable block up moves, makes the valve body rise from the washing liquid, and the manipulator takes away the valve body, with the head rod from the connection pad down, the second connecting rod of up overturning makes the second connecting rod rotate to vertical state, and third driving motor drive mounting panel rotates, makes the third cylinder change over to the second recess in, upward pulling backup pad takes out the magnetic sheet from wasing the intracavity to do recycle to the magnetic on the magnetic sheet, reduce the loss of magnetic.
Claims (6)
1. A valve body detection method in the valve production process is characterized in that: the method comprises the following steps:
step a, placing the cast valve body into a cleaning pool for pre-cleaning so as to remove grease on the surface of the valve body;
b, taking the cleaned valve body out of the cleaning pool, conveying the valve body into a drying chamber, and drying the moisture on the surface of the valve body;
c, putting the dried valve body into a magnetic powder flaw detector, and performing flaw detection treatment on the surface of the valve body in a mode of spraying magnetic powder on the surface of the valve body;
d, repairing the flaw on the surface of the valve body, and then carrying out flaw detection on the surface of the valve body until no dent or defect exists on the surface of the valve body;
e, putting the valve body into a demagnetizer, and removing magnetism on the valve body;
f, putting the demagnetized valve body into cleaning equipment, thoroughly cleaning the residual magnetic powder on the valve body, and removing the magnetic powder on the valve body;
wherein the cleaning equipment in the step f comprises a cleaning box (1), a clamping jaw assembly arranged in the cleaning box (1) and a cleaning assembly arranged below the clamping jaw assembly, a cleaning cavity is arranged in the cleaning box (1), a magnetic plate (3) is arranged at the bottom of the cleaning cavity, a first movable cavity (32) is arranged on the magnetic plate (3), a first sliding chute (321) is arranged on the inner wall of the first movable cavity, a first slide block is arranged in the first sliding groove (321), a first push plate (31) is rotatably connected on the first slide block, a first opening is arranged at the port of the first movable cavity, a supporting plate (311) is arranged at one end of the first push plate (31), when the magnetic plate (3) is paved at the bottom of the cleaning cavity, the first push plate (31) is vertical to the magnetic plate, and the support plate (311) is arranged at the top of the cleaning box (1); when the magnetic plate (3) is installed, the first push plate (31) is pulled out from the first movable cavity (32), the first sliding block moves to one end of the first sliding groove (321), the first push plate (31) is rotated around a connecting point, the first push plate (31) is rotated to be vertical to the magnetic plate (3), the first push plate (31) is in contact with the side wall of the first opening, and the magnetic plate (3) is placed at the bottom of the cleaning cavity; after the valve body (4) is demagnetized, the valve body is conveyed into a cleaning box (1) through a manipulator, a clamping jaw assembly is matched with the valve body to fix the valve body in a cleaning cavity, a cleaning assembly is matched with cleaning liquid to clean the valve body, magnetic powder remained on the valve body is washed in the cleaning liquid, the magnetic powder in the cleaning liquid is adsorbed on the magnetic plate under the magnetic force of the magnetic plate (3), and the magnetic powder in the cleaning liquid is collected on the magnetic plate (3) at the bottom of the cleaning cavity; after the valve body washs the completion, take out the valve body from wasing the intracavity, stimulate backup pad (311) up-motion afterwards, make backup pad (311) drive magnetic sheet (3) up-motion, take out magnetic sheet (3) from wasing the intracavity, collect the magnetic on magnetic sheet (3).
2. The valve body detection method in the valve production process according to claim 1, wherein: and c, setting the temperature of the drying chamber in the step b to be 65 ℃, placing the valve body into the drying chamber, performing centrifugal motion, and drying the water on the surface of the valve body by matching with the drying chamber.
3. The valve body detection method in the valve production process according to claim 1, wherein: and c, after the valve body in the step b is dried, placing the valve body at an air circulation position, and after the surface temperature of the valve body is reduced to room temperature, placing the valve body into a magnetic powder flaw detector for detection.
4. The valve body detection method in the valve production process according to claim 1, wherein: and e, after the valve body in the step e is placed in a demagnetizer, placing the valve body in a direct current electromagnetic field, continuously changing the current direction and gradually reducing the current to a zero value so as to finish the demagnetization operation of the valve body.
5. The valve body detection method in the valve production process according to claim 1, wherein: an equipment box (11) is arranged on the side wall of the cleaning box (1), a first air cylinder (111) is arranged in the equipment box (11), and the cleaning component comprises a first push rod (2) arranged on a piston rod of the first air cylinder (111), a connecting disc (21) arranged at one end of the first push rod (2), a first connecting rod (22) arranged on the connecting disc (21) and a second push rod (23) arranged in the first push rod (2); a plurality of bristles are arranged on the first connecting rod (22), a first driving motor (27) used for driving the connecting disc (21) to rotate is arranged on the first push rod (2), the first push rod (2) penetrates through the cleaning cavity, a second movable cavity is arranged on the first push rod (2), the second movable cavity is communicated with the cleaning cavity, the second push rod (23) is arranged in the second movable cavity, and the first air cylinder (111) can push the second push rod (23) to move along the inner wall of the second movable cavity; after the valve body is fixed in the cleaning cavity by the clamping jaw assembly, first openings on two sides of the valve body are respectively opposite to cleaning assemblies on two sides of the cleaning box (1), the first air cylinder (111) pushes the first push rod (2) to move forwards to enable the connecting disc (21) to be in contact with the end face of the valve body, bristles on the first connecting rod (22) are in contact with the surface of the valve body, the first air cylinder (111) drives the second push rod (23) to move along the inner wall of the second movable cavity, the second push rod (23) extends out of the second movable cavity, the second push rod (23) enters the valve body, the first driving motor (27) drives the connecting disc (21) to rotate, the connecting disc (21) drives the first connecting rod (22) to rotate around the side wall of the valve body, the bristles are in contact with the side wall of the valve body to scrape magnetic powder on the side wall of the valve body, and the surface of the valve body is cleaned; the second push rod (23) cleans the inner wall of the valve body in the valve body to finish the post-cleaning operation of the valve body.
6. The valve body detection method in the valve production process according to claim 1, wherein: a first movable groove is formed in the side wall of the cleaning cavity, a second sliding groove (18) is formed in the inner wall of the first movable groove, the clamping jaw assembly comprises a movable block (12) arranged in the first movable groove, a second connecting rod (13) arranged on the movable block (12) and a clamping jaw (131) arranged on the second connecting rod (13), and a second sliding block matched with the second sliding groove (18) is arranged on the side wall of the movable block (12); the side wall of the cleaning box (1) is provided with an installation block (15), the installation block (15) is provided with a second air cylinder (14), a piston rod of the second air cylinder (14) is arranged at the bottom of the movable block (12), the movable block (12) is provided with a second movable groove, the inner wall of the second movable groove is provided with a third sliding groove, the second connecting rod (13) is arranged in the second movable groove, the side wall of the second connecting rod (13) is provided with a third sliding block (124) matched with the third sliding groove, the second connecting rod (13) is rotatably connected onto the third sliding block (124), and the top of the first movable groove is provided with a second opening matched with the second connecting rod (13); the valve body is placed into the cleaning cavity by the manipulator, the third sliding block (124) moves along the third sliding groove, the clamping jaw (131) is enabled to approach the valve body, the clamping jaw (131) is contacted with the side wall of the valve body to fix the valve body, the second air cylinder (14) drives the movable block (12) to move downwards, the movable block (12) drives the valve body to move downwards, the valve body is immersed into cleaning liquid, and the valve body is cleaned; after the valve body washs the completion, second cylinder (14) promote movable block (12) and move to first movable tank top, up upset second connecting rod (13), make second connecting rod (13) overturn round the tie point to be the vertical state with movable block (12), second connecting rod (13) lateral wall contacts with second opening inner wall, pulling backup pad (311) make backup pad (311) drive magnetic sheet (3) up-moving, take out magnetic sheet (3) from the washing intracavity, recycle the magnetic on magnetic sheet (3).
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| CN201910742325.XA CN110398535B (en) | 2019-08-13 | 2019-08-13 | Valve body detection method in valve production process |
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| CN201910742325.XA CN110398535B (en) | 2019-08-13 | 2019-08-13 | Valve body detection method in valve production process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5761944A (en) * | 1980-10-01 | 1982-04-14 | Tokushu Toryo Kk | Control method of magnetic powder concentration in wet type magnetic powder flaw detection test |
| JP2970944B2 (en) * | 1991-01-22 | 1999-11-02 | 電子磁気工業株式会社 | Magnetic powder liquid analyzer |
| CN202372477U (en) * | 2011-11-10 | 2012-08-08 | 江苏赛福探伤设备制造有限公司 | Large valve body magnetic powder inspection machine |
| CN103076389B (en) * | 2012-12-25 | 2016-03-16 | 河北省电力公司电力科学研究院 | Massive casting valve magnetic powder detection method |
| CN208466650U (en) * | 2018-05-14 | 2019-02-05 | 浙江双鸟数码机床有限公司 | A kind of device for cleaning machinery cutter and measurer |
| CN108905378A (en) * | 2018-07-18 | 2018-11-30 | 陈赛君 | A kind of filter plate cleaning equipment of underwater oil pumping oil liquid separation convenient for safeguarding |
| CN108788756A (en) * | 2018-08-01 | 2018-11-13 | 福建天广消防有限公司 | A kind of indoor hydrant valve body automatic production line |
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