CN112014040A - Equipment and method for air tightness leakage detection of pipe - Google Patents
Equipment and method for air tightness leakage detection of pipe Download PDFInfo
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- CN112014040A CN112014040A CN202010949074.5A CN202010949074A CN112014040A CN 112014040 A CN112014040 A CN 112014040A CN 202010949074 A CN202010949074 A CN 202010949074A CN 112014040 A CN112014040 A CN 112014040A
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- pipe
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- water tank
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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
- G01M3/083—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 tubes
Abstract
The invention discloses equipment and a method for detecting air tightness of pipes, and the equipment and the method comprise a support body, wherein a glass water tank is arranged in the support body, a blanking frame is arranged on one side of the support body, a moving mechanism, a lifting mechanism and a pipe supporting mechanism are arranged in the support body, a caliper of the equipment is a thin panel, the quality is light, the equipment is convenient to carry, a clamping mechanism can independently grab and release the pipes, the lifting mechanism can drive the clamping mechanism to reach the position required by grabbing and releasing the pipes, the lifting mechanism can adjust the position through the moving mechanism, the air tightness detecting mechanism inflates and seals the pipes, and the pipe supporting frame is immersed into the water under the action of a second electric cylinder, so that the air tightness detecting operation is completed.
Description
Technical Field
The invention relates to the field of pipe airtightness detection, in particular to equipment and a method for pipe airtightness leakage detection.
Background
The pipe is widely used, and for a welded pipeline, air tightness detection needs to be carried out after welding. The existing pipeline airtightness detection method is characterized in that after one end of a pipeline is plugged into a plug by an operator, high-pressure gas is introduced into the other end of the pipeline, the pipeline is immersed in water, and the operator observes whether bubbles are generated at the welding position of the pipeline. And in the whole airtight test process, the inside of the product is in a high-pressure state, and if the connection between the plug and the pipeline is not tight, the pipeline can be popped out, so that operators are easily injured. The detection efficiency of a single pipe is low, so that an automatic management control mode is needed to detect a plurality of pipes simultaneously, which is very important.
Disclosure of Invention
The invention aims to solve the technical problems and provides equipment and a method for detecting the air tightness of the pipes.
The technical scheme adopted by the invention for solving the technical problems is equipment for detecting air tightness and leakage of the pipe, which comprises a bracket body, wherein a glass water tank is arranged in the bracket body, a blanking frame is arranged on one side of the bracket body, and a moving mechanism, a lifting mechanism and a pipe supporting mechanism are arranged in the bracket body;
the moving mechanism comprises a lead screw transmission mechanism driven by a first servo motor, and the lead screw transmission mechanism drives the lifting mechanism to move back and forth from the upper part of the glass water tank to the upper part of the blanking frame;
the lifting mechanism comprises a first electric cylinder, the head end of the first electric cylinder is connected with a clamping mechanism, the first electric cylinder controls the lifting work of the clamping mechanism, and the clamping mechanism is matched with the pipe supporting mechanism to complete the pipe grabbing and releasing work;
the clamp mechanism comprises a second servo motor, the second servo motor drives the left panel through a worm, the left panel moving back and forth is matched with the right panel, at least one clamping part is arranged on the left panel, and the clamping part and the corresponding clamping part on the right panel realize the grabbing and releasing of a single pipe;
the pipe supporting mechanism comprises a pipe supporting frame positioned above the glass water tank, second electric cylinders are mounted at two ends of the pipe supporting frame to control the pipe supporting frame to lift, and two air tightness detection mechanisms respectively acting on two ends of a pipe to be detected are further arranged on the pipe supporting frame;
the airtight detection mechanism comprises a plug, one end of the plug is matched with the port of the pipe to be detected, and the other end of the plug is communicated with high-pressure air and connected with a driving cylinder to control the movement of the driving plug.
Preferably, the lifting mechanism further includes two guide posts located on both sides of the first electric cylinder and arranged in parallel with the first electric cylinder.
Preferably, the lifting mechanism is provided at least at two positions.
Preferably, a movable stop lever is arranged at the blanking frame.
The invention also provides a method for detecting the air tightness leakage of the pipe, which comprises the following steps:
the method comprises the following steps: the grabbing work of the pipe to be detected is completed, a second servo motor in the clamp mechanism drives the left panel to move relative to the right panel through a worm, and each clamping part on the left panel and each corresponding clamping part on the right panel are close to each other to clamp the pipe to be detected;
step two: completing the preparation work of the pipe to be detected, and moving a lead screw transmission mechanism driven by a first servo motor in a moving mechanism to enable a lifting mechanism moving along with the lead screw transmission mechanism to return to the position above a glass water tank;
step three: the method comprises the following steps that the placement work of a pipe to be tested is completed, a mandril of a first electric cylinder in a lifting mechanism is ejected out to drive a clamping mechanism arranged at the mandril to descend, and when the pipe to be tested is contacted with a pipe supporting frame, the clamping mechanism completes the loosening operation;
step four: after the pipe to be detected is placed on the pipe supporting frame, the plug in the air tightness detection mechanism plugs the two ends of the pipe to be detected under the pushing of the driving cylinder, gas is filled in the pipe to be detected, the pipe to be detected is immersed under the glass water tank under the driving of the second electric cylinder until the water in the glass water tank keeps a static state, and whether bubbles are generated is observed;
step five: accomplish the classification work of surveying tubular product, the pipe-supporting rack rises to the glass water tank top, the work of snatching of surveying tubular product has been accomplished to clamping mechanism, screw drive mechanism work among the moving mechanism moves to the top of blanking frame, loosen the work that clamping mechanism accomplished the blanking, wherein the tubular product does not have the leakage among the testing process, then the movable pin in the blanking frame is raised, tubular product normally rolls to certified products storage rack, if tubular product has the leakage, then movable pin reduces in the blanking frame, tubular product rolls to waste product and keeps in the frame.
The caliper gauge has the following beneficial effects: the pipe detection device is reasonable in structural design, the moving mechanism, the lifting mechanism and the pipe supporting mechanism are matched with each other, the clamping mechanism is responsible for the grabbing and releasing work of pipes, and the air tightness detection mechanism is responsible for inflating the pipes and blocking ports so as to achieve the purpose of pipe detection.
According to the method for detecting the air tightness of the pipe, the pipe is grabbed and released independently through the clamp mechanism, the lifting mechanism can drive the clamp mechanism to reach the position required by grabbing and releasing the pipe, the lifting mechanism adjusts the position through the moving mechanism, the pipe is inflated and sealed through the air tightness detecting mechanism, the pipe supporting frame is immersed into the water surface under the action of the second electric cylinder, the clamp mechanism is provided with at least one clamping part, a plurality of pipes can be detected simultaneously, and the method for detecting the air tightness of the pipe is high in working efficiency.
Drawings
FIG. 1 is a schematic perspective view of the apparatus of the present invention;
FIG. 2 is a schematic plan view of the apparatus of the present invention;
fig. 3 is an enlarged schematic structural view of a in fig. 1.
Reference numerals: 1. a stent body; 2. a glass water tank; 3. a first electric cylinder; 4. a second servo motor; 5. a left panel; 6. a right panel; 7. a stinger; 8. a plug; 11. a first servo motor; 12. a second electric cylinder; 13. a movable stop lever; 14. a blanking frame; 15. and a guide post.
Detailed Description
For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
The equipment for the pipe air tightness leakage detection comprises a support body 1, a glass water tank 2 is installed in the support body 1, a blanking frame 14 is installed on one side of the support body 1, a movable stop lever 13 is arranged at the blanking frame 14, the movable stop lever 13 is lifted up, the pipe can be normally rolled to a qualified product storage rack, and if the leakage phenomenon of the pipe exists, the movable stop lever 13 can be reduced, so that the pipe can be rolled to a waste product temporary storage rack.
A moving mechanism, a lifting mechanism and a tube supporting mechanism are arranged in the bracket body 1; the moving mechanism comprises a lead screw transmission mechanism driven by a first servo motor 11, the lead screw transmission mechanism converts the rotary motion of the first servo motor 11 into linear motion, and the lead screw transmission mechanism drives the lifting mechanism to move back and forth from the upper part of the glass water tank 2 to the upper part of the blanking frame 14.
Elevating system includes first electronic jar 3, and the ejector pin head end of first electronic jar 3 is connected with clamping mechanism, and the lift work of first electronic jar 3 control clamping mechanism, first electronic jar 3 can push away clamping mechanism suitable position, so that with the cooperation of trusteeship mechanism is accomplished grabbing of tubular product and is put work. The lifting mechanism further comprises two guide posts 15 which are positioned on two sides of the first electric cylinder 3 and are arranged in parallel with the first electric cylinder 3, and the arrangement of the guide posts 15 can improve the working stability of the lifting clamp mechanism.
The length of the pipe is long, at least two clamping mechanisms are arranged on one pipe, so that the stability of the pipe in the grabbing and releasing process is ensured, each clamping mechanism corresponds to one lifting mechanism, and therefore the lifting mechanisms are at least provided with two positions.
The clamp mechanism comprises a second servo motor 4, the second servo motor 4 drives the left panel through a worm, the left panel 5 and the right panel 6 which move back and forth are matched with each other, at least one clamping part is arranged on the left panel 5, and the clamping parts corresponding to the clamping parts on the right panel 6 are used for grabbing and placing a single pipe.
Wherein trusteeship mechanism is including being located 2 top of glass water tank's pipe support 7, its lifting work of electronic jar 12 control of second is installed at pipe support 7 both ends, still is equipped with two punishments on the pipe support 7 and does not act on the airtight detection mechanism who waits to examine the tubular product both ends, and airtight detection mechanism includes end cap 8, end cap 8 one end with wait to examine the tubular product port and cooperate, its other end intercommunication high pressure gas to with drive the motion that actuating cylinder links to each other control drive end cap 8.
A method for the gas-tight leak detection of a pipe comprises the following steps:
the method comprises the following steps: the grabbing work of the pipe to be detected is completed, a second servo motor 4 in the clamp mechanism drives a left panel to move relative to a right panel through a worm, and each clamping part on the left panel and each corresponding clamping part on the right panel are close to each other to clamp the pipe to be detected;
step two: the preparation work of the pipe to be detected is completed, the screw rod transmission mechanism driven by the first servo motor 11 in the moving mechanism moves, and the lifting mechanism moving together with the screw rod transmission mechanism returns to the position above the glass water tank 2;
step three: the method comprises the following steps that the placement work of a pipe to be tested is completed, a mandril of a first electric cylinder 3 in a lifting mechanism is ejected out to drive a clamping mechanism arranged at the mandril to descend, and when the pipe to be tested contacts a stinger 7, the clamping mechanism completes the loosening operation;
step four: after the pipe to be detected is placed on the stinger 7, the plug 8 in the air tightness detection mechanism plugs the two ends of the pipe to be detected under the pushing of the driving cylinder, fills gas into the pipe to be detected, and immerses the pipe to be detected below the glass water tank 2 under the driving of the second electric cylinder 12 until the water in the glass water tank 2 keeps a static state for observation, and whether bubbles are generated or not is detected;
step five: accomplish the classification work of survey tubular product, stinger 7 rises to glass water tank 2 top, the work of snatching of survey tubular product has been accomplished to clamping mechanism, screw drive mechanism work among the moving mechanism moves to the top of blanking frame 14, unclamp clamping mechanism and accomplish the work of blanking, wherein the tubular product does not have the leakage among the testing process, then movable pin 13 in the blanking frame 14 is raised, tubular product normally rolls to the certified products storage rack, if there is the leakage tubular product, then movable pin 13 reduces in the blanking frame 14, tubular product rolls to waste product and keeps in the frame.
Claims (5)
1. The utility model provides an equipment for tubular product gas tightness leaks hunting, includes the stake body, installs the glass water tank in the stake body, and stake body one side installs blanking frame, its characterized in that: a moving mechanism, a lifting mechanism and a tube supporting mechanism are arranged in the bracket body;
the moving mechanism comprises a lead screw transmission mechanism driven by a first servo motor, and the lead screw transmission mechanism drives the lifting mechanism to move back and forth from the upper part of the glass water tank to the upper part of the blanking frame;
the lifting mechanism comprises a first electric cylinder, the head end of the first electric cylinder is connected with a clamping mechanism, the first electric cylinder controls the lifting work of the clamping mechanism, and the clamping mechanism is matched with the pipe supporting mechanism to complete the pipe grabbing and releasing work;
the clamp mechanism comprises a second servo motor, the second servo motor drives the left panel through a worm, the left panel moving back and forth is matched with the right panel, at least one clamping part is arranged on the left panel, and the clamping part and the corresponding clamping part on the right panel realize the grabbing and releasing of a single pipe;
the pipe supporting mechanism comprises a pipe supporting frame positioned above the glass water tank, second electric cylinders are mounted at two ends of the pipe supporting frame to control the pipe supporting frame to lift, and two air tightness detection mechanisms respectively acting on two ends of a pipe to be detected are further arranged on the pipe supporting frame;
the airtight detection mechanism comprises a plug, one end of the plug is matched with the port of the pipe to be detected, and the other end of the plug is communicated with high-pressure air and connected with a driving cylinder to control the movement of the driving plug.
2. The apparatus for leak detection of the gas tightness of pipes according to claim 1, characterized in that: the lifting mechanism further comprises two guide columns which are positioned on two sides of the first electric cylinder and are arranged in parallel with the first electric cylinder.
3. The apparatus for leak detection of the gas tightness of pipes according to claim 1, characterized in that: the lifting mechanism is provided with at least two positions.
4. The apparatus for leak detection of the gas tightness of pipes according to claim 1, characterized in that: the blanking frame is provided with a movable stop lever.
5. A method for gas-tight leak testing of pipes according to any of claims 1-4, characterized in that: the method comprises the following steps:
the method comprises the following steps: the grabbing work of the pipe to be detected is completed, a second servo motor in the clamp mechanism drives the left panel to move relative to the right panel through a worm, and each clamping part on the left panel and each corresponding clamping part on the right panel are close to each other to clamp the pipe to be detected;
step two: completing the preparation work of the pipe to be detected, and moving a lead screw transmission mechanism driven by a first servo motor in a moving mechanism to enable a lifting mechanism moving along with the lead screw transmission mechanism to return to the position above a glass water tank;
step three: the method comprises the following steps that the placement work of a pipe to be tested is completed, a mandril of a first electric cylinder in a lifting mechanism is ejected out to drive a clamping mechanism arranged at the mandril to descend, and when the pipe to be tested is contacted with a pipe supporting frame, the clamping mechanism completes the loosening operation;
step four: after the pipe to be detected is placed on the pipe supporting frame, the plug in the air tightness detection mechanism plugs the two ends of the pipe to be detected under the pushing of the driving cylinder, gas is filled in the pipe to be detected, the pipe to be detected is immersed under the glass water tank under the driving of the second electric cylinder until the water in the glass water tank keeps a static state, and whether bubbles are generated is observed;
step five: accomplish the classification work of surveying tubular product, the pipe-supporting rack rises to the glass water tank top, the work of snatching of surveying tubular product has been accomplished to clamping mechanism, screw drive mechanism work among the moving mechanism moves to the top of blanking frame, loosen the work that clamping mechanism accomplished the blanking, wherein the tubular product does not have the leakage among the testing process, then the movable pin in the blanking frame is raised, tubular product normally rolls to certified products storage rack, if tubular product has the leakage, then movable pin reduces in the blanking frame, tubular product rolls to waste product and keeps in the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010949074.5A CN112014040A (en) | 2020-09-10 | 2020-09-10 | Equipment and method for air tightness leakage detection of pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010949074.5A CN112014040A (en) | 2020-09-10 | 2020-09-10 | Equipment and method for air tightness leakage detection of pipe |
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| Publication Number | Publication Date |
|---|---|
| CN112014040A true CN112014040A (en) | 2020-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010949074.5A Pending CN112014040A (en) | 2020-09-10 | 2020-09-10 | Equipment and method for air tightness leakage detection of pipe |
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| Country | Link |
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| CN (1) | CN112014040A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114486102A (en) * | 2022-02-18 | 2022-05-13 | 湖南湘投金天新材料有限公司 | Underwater detection device for pipe leakage and detection method thereof |
-
2020
- 2020-09-10 CN CN202010949074.5A patent/CN112014040A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114486102A (en) * | 2022-02-18 | 2022-05-13 | 湖南湘投金天新材料有限公司 | Underwater detection device for pipe leakage and detection method thereof |
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