KR101719682B1 - A Automatic Crack Test Device of Flexible Pipe - Google Patents

A Automatic Crack Test Device of Flexible Pipe Download PDF

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Publication number
KR101719682B1
KR101719682B1 KR1020150064297A KR20150064297A KR101719682B1 KR 101719682 B1 KR101719682 B1 KR 101719682B1 KR 1020150064297 A KR1020150064297 A KR 1020150064297A KR 20150064297 A KR20150064297 A KR 20150064297A KR 101719682 B1 KR101719682 B1 KR 101719682B1
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KR
South Korea
Prior art keywords
corrugated pipe
screw
sliding
corrugated
rubber ring
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Application number
KR1020150064297A
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Korean (ko)
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KR20160131571A (en
Inventor
최근배
Original Assignee
주식회사 파워플렉스
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Priority to KR1020150064297A priority Critical patent/KR101719682B1/en
Publication of KR20160131571A publication Critical patent/KR20160131571A/en
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Publication of KR101719682B1 publication Critical patent/KR101719682B1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
    • G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
    • 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
    • G01M3/022—Test plugs for closing off the end of a pipe
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2846—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for tubes

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The present invention relates to an apparatus for automatically testing crevice cracks, in which both sides of a corrugated pipe are hermetically sealed through fixing means for fixing both sides of the corrugated pipe, and when the corrugated pipe is positioned at the grip portion, Wherein the apparatus is provided with a device for automatically gripping a corrugated pipe and then providing an air pressure to the corrugated pipe so as to check the sealing state of the corrugated pipe so that the sealing state of the corrugated pipe can be automatically checked. As a result,
A bed (10) made of a desk type, a flat plane being located on the upper part, and being installed to mount various components on the plane; A sliding support portion 20 provided at both sides of the bed and having a rectangular parallelepiped shape or a polygonal shape and having a coupling hole formed at the center thereof; A guide support part 30 installed at both ends of the bed and having a rectangular or polygonal shape and a coupling hole formed at the center thereof; A sliding conveying screw 40 which is provided on the sliding support portion and has a cylindrical bar shape and has threads formed on the outer periphery thereof and has a screw thread direction reversed about the center of the screw; A guide part transfer bar 50 which is connected to both sides of the guide support part and is formed in a cylindrical shape; A screw power transmission unit 60 installed at one end of the sliding conveying screw to transmit the power to rotate the sliding conveying screw clockwise or counterclockwise; A screw rotation electric motor (70) coupled to the screw power transmission unit by gear engagement and generating power by driving the motor to transmit a clockwise or counterclockwise rotation power to the screw power transmission unit; The horizontal conveying screw is coupled to the body 2 and has a horizontal receiving part 81 at the bottom and a front vertical panel 82 at the front of the horizontal receiving part 81, A sliding conveyance unit 80 comprising a panel 83; A rubber ring 91 for airtightness is further provided on the outer circumferential edge of the body so as to grip the corrugated tube 81, A bellows gripping part 90 which swells up when the airtight rubber ring 91 is compressed and airtightly expands the bellows tube 1; The front and rear vertical panels are installed on the rear surface of the corrugated pipe holding part 90 and are disposed between the front vertical panel and the rear vertical panel constituting the sliding conveying part and on the rear surface of the rear vertical panel. The rubber ring 91 for airtight sealing is compressed and airtightened so that the bellows tube 1 is airtightly sealed and the bellows holding portion 90 is advanced so that the compression of the airtight rubber ring 91 is released, A grip portion flow cylinder 100 for releasing airtightness; A pneumatic feeder (110) for providing air pressure to the corrugated pipe gripper through the gripper fluid cylinder to test whether the corrugator pipe is cracked; The sliding conveyance unit is installed on the front panel of the sliding conveyance unit. When the corrugated pipe is conveyed between the grasping units, it is confirmed whether the corrugated pipe is cracked or not by driving the electric motor for screw rotation. And a corrugated pipe confirmation sensor 120 for driving the electric motor for screw rotation and automatically outputting a signal so that the corrugated pipe can be removed from the corrugated pipe holding part when the corrugated pipe is grasped by a hand or grasped by a tool in a finished state This feature.

Description

[0001] The present invention relates to an automatic crack test device for a flexible tube,

The present invention relates to an apparatus and method for automatically testing corrugated tube cracks, and more particularly, to an apparatus and method for automatically testing corrugated tube cracks, in which both sides of a corrugated tube are sealed through fixing means for fixing both corrugated tubes, Wherein the apparatus is configured to automatically check the sealing state of the bellows pipe by automatically grasping the bellows in the state of the bellows pipe and then to provide the air pressure to the bellows pipe to check the sealing state of the bellows pipe. .

The bellows tube is a pipe which is widely used in many industrial fields in general industry.

In particular, semiconductor equipment is used for air intake series and cooling water supply series which are required to maintain a vacuum. Therefore, a pressure condition or defects required by the produced bellows pipe must be minimized, and only one defective bellows pipe is put into the production equipment It can cause enormous hindrance to production.

The most problematic is that the bellows tube has a shape in which the wrinkles are continuously formed, and it is difficult to achieve uniformity in quality due to the shape of the bellows tube as compared with a general tube body.

Therefore, it is desirable to perform the compaction, cracking, and leakage tests before installing them in the production facilities, and it is desirable to install them after checking the abnormality.

In order to solve this problem, a 'bellows tube pressure and crack test apparatus' is proposed in Patent No. 10-0927045.

Referring to FIGS. 1 and 2, the main contents of the present invention are as follows. At least one of the first and second finishing caps protruding from the outside so as to mount the hose and having a hose connection portion penetrating from the protruded center to the other side; A first conveying unit including a screw having a thread formed on an outer circumferential surface thereof and two guide rails formed parallel to both sides of the screw; and a screw of the first conveying unit is vertically pierced and projected to the lower center of one side of the water tank, And a screw having a structure similar to that of the first transfer part, the screw being made of a bi-directional screw having a rotational direction different from that of the screw in the longitudinal direction of the screw, the screw having a structure capable of rotating the bi- A second conveying portion formed with a first holding portion and a second conveying portion formed on a bottom surface of the conveying table so as to move according to the rotation of the screw corresponding to the screw and the guide rail of the first conveying portion; And reciprocally approach or retract according to the rotation of the bi-directional screw, A first fixing part that is composed of two fixed block fixed to the projection formed to be inserted into the semicircular folds are formed adjacent to one end of the row and jeugwan; A third conveying part formed on a bottom surface of the water tank adjacent to an end of the first fixing part and formed with a bi-directional screw in a direction perpendicular to the first conveying part, and a second conveying part having two symmetric parts coupled to the bottom part of the third conveying part, A second fixing part composed of a fixing piece which is mutually approached or retracted in accordance with rotation and inserted into a corrugation formed in contact with one end of the bellows pipe therebetween; A fourth conveyance part formed in the same direction as the screw of the first conveyance part in close contact with the other side surface of the first conveyance part and a pressure regulating knob formed at the end of the fourth conveyance part, And a pressing member configured to press the first or second finishing cap, which is mounted on the other end of the bellows pipe fixed by the second fixing portion, Feature; The bellows tube can be easily fixed and air or gas can be injected into it to test the pressure, crack, and leakage, so that a uniform quality bellows pipe can be supplied without any bellows tube that is leaked or damaged after installation in the industrial field. .

However, since the above-described bellows pipe (corrugated pipe) must be put in a water tank (water), the test procedure is complicated, and there is a need to wipe off the water after the experiment has ended.

Due to the inconvenience of such experiments, it is very difficult to conduct an entire survey, so that only a few of the whole corrugated tubes are extracted and tested.

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to make it possible to test a corrugated pipe in air instead of water, and to check whether a corrugated tube is cracked according to a change in air pressure, And the insertion of the corrugated pipe is automatically detected by the sensor. When the sensor detects the insertion of the corrugated pipe, the electric motor is driven to automatically grasp the corrugated pipe, and then the air pressure is applied to automatically open the corrugated pipe The purpose is to make it understand.

As means for achieving the above object,

A bed (10) having a desk shape, a flat plane on an upper part thereof and installed to mount various components on the plane; A sliding support portion 20 provided at both sides of the bed and having a rectangular parallelepiped shape or a polygonal shape and having a coupling hole formed at the center thereof; A guide support part 30 installed at both ends of the bed and having a rectangular or polygonal shape and a coupling hole formed at the center thereof; A sliding conveying screw 40 which is provided on the sliding support portion and has a cylindrical bar shape and has threads formed on the outer periphery thereof and has a screw thread direction reversed about the center of the screw; A guide part transfer bar 50 which is connected to both sides of the guide support part and is formed in a cylindrical shape; A screw power transmission unit 60 installed at one end of the sliding conveying screw to transmit the power to rotate the sliding conveying screw clockwise or counterclockwise; A screw rotation electric motor (70) coupled to the screw power transmission unit by gear engagement and generating power by driving the motor to transmit a clockwise or counterclockwise rotation power to the screw power transmission unit; The horizontal conveying screw is coupled to the body 2 and has a horizontal receiving part 81 at the bottom and a front vertical panel 82 at the front of the horizontal receiving part 81, A sliding conveyance unit 80 comprising a panel 83; A rubber ring 91 for airtightness is further provided on the outer circumferential edge of the body so as to grip the corrugated tube 81, A bellows gripping part 90 which swells up when the airtight rubber ring 91 is compressed and airtightly expands the bellows tube 1; The front and rear vertical panels are installed on the rear surface of the corrugated pipe holding part 90 and are disposed between the front vertical panel and the rear vertical panel constituting the sliding conveying part and on the rear surface of the rear vertical panel. The rubber ring 91 for airtight sealing is compressed and airtightened so that the bellows tube 1 is airtightly sealed and the bellows holding portion 90 is advanced so that the compression of the airtight rubber ring 91 is released, A grip portion flow cylinder 100 for releasing airtightness; A pneumatic feeder (110) for providing air pressure to the corrugated pipe gripper through the gripper fluid cylinder to test whether the corrugator pipe is cracked; The sliding conveyance unit is installed on the front panel of the sliding conveyance unit. When the corrugated pipe is conveyed between the grasping units, it is confirmed whether the corrugated pipe is cracked or not by driving the electric motor for screw rotation. And a corrugated pipe confirmation sensor 120 for guiding the driving of the electric motor for screw rotation and automatically outputting a signal so that the corrugated pipe can be removed from the corrugated pipe holding part by grasping the corrugated pipe by hand or grasping the corrugated pipe with the tool in the finished state ; If it is determined that the corrugated pipe is inserted to test the corrugated pipe according to the detection result of the corrugated pipe confirmation sensor 120, a control signal is outputted to the screw rotating motor to rotate the sliding conveying skew, and the corrugated pipe grip is transferred to the center area, If the air pressure is maintained for a certain period of time and the air pressure is maintained, there is no crack in the corrugated tube, and if the air pressure is not applied and the air pressure is not maintained, the corrugated tube The gripping tube is operated to release the expansion of the rubber ring for airtightness, and then the sliding conveying screw is rotated so that the corrugated pipe holding part is moved to both ends And a control unit (130) for outputting a control signal to be retracted, He said; The gripping flow cylinder 100 has a piston 101 mounted therein, an air supply hose 111 installed through the piston 101, The air providing hose 111 is connected to the pneumatic feeder 110 and is configured to provide air pressure to the corrugated pipe 1 using the air providing hose 111; The gripper moving cylinder 100 is characterized in that the piston 101 is supplied with air pressure from the cylinder air supply device 102.

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As described above, according to the present invention, it is possible to test the corrugated pipe in the air, not in the water, and to determine whether or not the corrugated pipe is cracked according to the change of the air pressure. However, the insertion of the corrugated pipe is automatically detected by the sensor, and when the insertion of the corrugated pipe is detected by the sensor, the electric motor is driven to automatically grasp the corrugated pipe, and then the air pressure is applied to automatically grasp the crack of the corrugated pipe.

FIG. 1 and FIG. 2 are diagrams showing a configuration of a conventional bell pipe test apparatus.
Fig. 3 is an overall configuration diagram of the present invention; Fig.
4 is another overall angular view of the present invention.
5 is a front view of the present invention.
6 is a first operational view of the present invention in which a corrugated tube is mounted.
7 is a second operational view of the present invention in which the gripping fluid cylinder is actuated to compress the rubber ring for airtightness.
FIG. 8 is a third operational view of the present invention, in which a pneumatic pressure is applied to the corrugated pipe in a state in which the corrugated pipe is airtight so as to perform a crack test.
9 is a control operation block diagram of the present invention.

The operation principle of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings and description. It should be understood, however, that the drawings and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention, and are not to be construed as limiting the present invention.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The terms used below are defined in consideration of the functions of the present invention, which may vary depending on the user, intention or custom of the operator. Therefore, the definition should be based on the contents throughout the present invention.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. The configuration is omitted as much as possible, and a functional configuration that should be additionally provided for the present invention is mainly described.

Those skilled in the art will readily understand the functions of the components that have been used in the prior art among the functional configurations that are not shown in the following description, The relationship between the elements and the components added for the present invention will also be clearly understood.

In order to efficiently explain the essential technical features of the present invention, the following embodiments properly modify the terms so that those skilled in the art can clearly understand the present invention, It is by no means limited.

As a result, the technical idea of the present invention is determined by the claims, and the following embodiments are merely illustrative of the technical idea of the present invention in order to efficiently explain the technical idea of the present invention to a person having ordinary skill in the art to which the present invention belongs. .

Fig. 3 is an overall configuration diagram of the present invention; Fig.

4 is another overall angular view of the present invention.

5 is a front view of the present invention.

6 is a first operational view of the present invention in which a corrugated tube is mounted.

7 is a second operational view of the present invention in which the gripping fluid cylinder is actuated to compress the rubber ring for airtightness.

FIG. 8 is a third operational view of the present invention, in which a pneumatic pressure is applied to the corrugated pipe in a state in which the corrugated pipe is airtight so as to perform a crack test.

9 is a block diagram showing a control operation of the present invention,

Components of the present invention mainly include a bed 10, a sliding support 20, a guide support 30, a sliding conveying screw 40, a guide conveying bar 50, a screw power transmission part 60, A sliding conveyance section 80, a corrugated pipe holding section 90, a gripping section moving cylinder 100, a pneumatic conveying section 110, a corrugated pipe confirmation sensor 120, And a control unit 130, as shown in FIG.

The bed 10 is formed in the shape of a desk, and a flat plane is positioned on the upper part. The bed 10 is installed to mount various components on the plane, Door.

The sliding support portion 20 is installed at the center of both sides of the bed, and has a rectangular parallelepiped shape or a polygonal shape, and a coupling hole is formed at the center thereof.

The guide supporting portions 30 are provided at both ends of the bed, and are formed in a rectangular parallelepiped or polygonal shape and have a coupling hole formed at the center thereof.

The sliding conveying screw 40 is installed on both side sliding supports, and has a cylindrical bar shape. The outer peripheral edge of the sliding conveying screw 40 is formed with threads, and the direction of the screw thread is reversed about the center.

The guide part transfer bar 50 is installed to connect both sides of the guide support part, and is formed in a cylindrical shape.

The screw power transmission unit 60 is installed at one end of the sliding conveying screw, and transmits the power to rotate the sliding conveying screw clockwise or counterclockwise.

The screw rotation electric motor 70 is coupled to the screw power transmission unit by gear engagement and generates power by driving the motor to transmit rotational power in a clockwise or counterclockwise direction to the screw power transmission unit.

The sliding conveyance unit 80 is coupled to the body 2 of the sliding conveyance screw and includes a horizontal support unit 81 at a lower portion thereof, a front vertical panel 82 at the front of the horizontal support unit 81, And a rear vertical panel 83 is provided on the rear surface of the pedestal portion. At this time, the horizontal receiving portion is screwed to the sliding conveying screw so that the horizontal receiving portion is simultaneously advanced or retracted corresponding to the rotation of the sliding conveying screw.

The corrugated pipe holding part 90 protrudes from the front surface of the front vertical panel 82 constituting the sliding conveyance part 80 and grips the corrugated pipe 81. Further, a rubber ring 91 for airtightness is further provided on the outer circumference of the body, and when the airtight rubber ring 91 is compressed by the flow of the body, it is bulged up and airtightly the corrugated tube 1. [

The gripping part fluid cylinder 100 is installed on the rear surface of the corrugated pipe holding part 90 and is installed between the front vertical panel and the rear vertical panel constituting the sliding conveying part and on the rear surface of the rear vertical panel, The rubber ring 91 for airtightness is inflated so that the bellows tube 1 is airtight and the bellows gripper 90 is advanced so that the compression of the airtight rubber ring 91 is released So that the airtightness of the corrugated pipe 1 is released. The unexplained reference numeral 102 is a pneumatic pressure providing device that supplies air pressure to the gripper flow cylinder 100.

The pneumatic feeder 110 provides air pressure to the corrugated pipe gripper through the gripper flow cylinder to test whether or not the corrugated pipe is cracked.

The corrugated pipe confirmation sensor 120 is installed on the front panel of the sliding conveyance unit and is constituted by a photosensor. When the corrugated pipe is transferred between the grip portions, it is confirmed that the corrugated pipe confirmation sensor 120 induces the driving of the screw- If the grinder is grasped by a hand or grasped by a tool in a state where the confirmation of cracks in the corrugated pipe is finished after that, the driving of the electric motor for screw rotation is guided and the signal is output so that the corrugated pipe can be automatically removed from the corrugated pipe grip do.

When it is determined that the corrugated pipe is inserted to test the corrugated pipe according to the detection result of the corrugated pipe confirmation sensor 120, the control unit 130 outputs a control signal to the screw rotating motor to rotate the sliding conveying skew, And then the gripping tube is gripped in an airtight state by operating the gripping tube. Then, when the air pressure is maintained for a certain period of time by feeding the air pressure, there is no crack in the corrugation tube, It is judged that there is a crack in the corrugated pipe and the air pressure is released. Thereafter, when the corrugated pipe is gripped, the gripping fluid cylinder is operated to release the expansion of the gas tight rubber ring, Retract to the point at both ends.

Hereinafter, the assembly method of the present invention will be described.

The present invention relates to an apparatus and a method for rotating a screw 10 including a bed 10, a sliding supporting portion 20, a guide supporting portion 30, a sliding conveying screw 40, a guide conveying bar 50, a screw power transmitting portion 60, A pneumatic feeder 110, a corrugated pipe confirmation sensor 120, and a control unit 130. The electric motor 70, the sliding conveyance unit 80, the corrugated pipe grasping unit 90, the gripping part fluid cylinder 100, The bed 10 is formed in a rectangular parallelepiped shape, and a door is provided at a lower portion of the bed 10 to house various tools, and various devices can be installed thereon.

A sliding support portion and a guide support portion are provided on both sides of the upper portion of the bed 10, a sliding conveyance screw is provided through a sliding support portion, and a guide conveyance bar is installed through a guide support portion.

The sliding conveying screw 40 is configured such that a screw thread is formed on the outer circumference and is rotated clockwise or counterclockwise.

The guide transport bar 50 merely assists the movement, and the main movement is via the sliding conveying screw 40. The screw power transmission portion 60 is installed at the upper end of the sliding conveying skew 40 and has gears for transmitting power.

A screw rotating electric motor 70 is connected to the skew power transmission unit 60 and is assembled to transmit power by gearing with the screw power transmission unit 60.

The sliding power transmission portion 60 is coupled to the sliding conveyance portion 80. The sliding conveyance coupling portion 80 is formed of a pair and is simultaneously advanced to the central point when the screw power transmission portion 60 rotates And is configured to simultaneously retract in both directions.

A front vertical panel 82 and a rear vertical panel 83 of the sliding conveyance unit 80 are installed and a corrugated pipe holding unit 90 is installed on the front vertical panel 82. The corrugated pipe holding unit 90, The corrugated tube 1 is installed.

At this time, the flat portion 1a of the corrugated pipe is provided on the corrugated pipe holding portion 90, and the corrugated pipe holding portion 90 is engaged with the gripped portion flowing cylinder.

The pneumatic rubber ring 91 is further provided on the bell pipe holding part 90 and the airtight rubber ring 91 is retracted and assembled to swell back when the gripping part moving cylinder 100 is operated.

When the airtight rubber ring 91 is inflated, the bellows tube is maintained in an airtight state. Thereafter, the air pressure delivered from the pneumatic bellows is transmitted through the bellows holding portion to maintain a constant air pressure on the bellows tube.

A corrugated pipe confirmation sensor 120 is mounted on the front vertical panel 82 of the sliding conveyance unit 80. The presence or absence of the corrugated pipe can be confirmed by the action of the corrugated pipe confirmation sensor 120, The screw rotating electric motor 70 is automatically moved according to the disposition of the corrugated pipe 1 so that the corrugated pipe 1 can be mounted more easily.

Thereafter, if the air pressure is not maintained for a predetermined period of time by checking the air pressure holding state, it is judged that cracks have occurred in the corrugated pipe and assembled so as to display it.

Hereinafter, the operation and effect of the present invention will be described.

A slide conveying screw 50 and a slide conveying unit 80 are mounted on the bed 10 of the present invention and the slide conveying unit 80 is provided with a corrugated pipe holding unit 90, A screw driving power transmitting portion 60 is provided at an end of the sliding conveying screw 40 and a screw rotating electric motor 60 for transmitting motion power through the screw driving power transmitting portion 60. [ (Not shown).

First, when the corrugated pipe 1 is positioned on the corrugated pipe holding part 90, the sensing means 120 grasps the corrugated pipe 1 and prepares an operation for conveying the corrugated pipe holding part 90 to the central area.

That is, when it is confirmed by the sensing means 120 that the corrugated pipe 1 is positioned between the corrugated pipe holding portions 90, the screw rotating electric motor 70 is driven to rotate the sliding conveying screw 40 to rotate the sliding conveying portion 80, To the central region.

Then, the corrugated pipe holding part 90 connected to the sliding conveying part is transferred to the central area to grip the corrugated pipe.

At this time, the conveyance distance of the corrugated pipe holding part 90 can be specified in advance in accordance with the length of the corrugated pipe 1. Otherwise, the corrugated pipe holding part 90 is coupled to the corrugated pipe 1, (90) can be stopped.

When the gripper pipe holding portion 90 is stopped and then the gripper moving cylinder 100 is operated, the rubber ring 91 for airtight sealing of the corrugated pipe holding portion 90 inserted into the corrugated pipe 1 is compressed So that the corrugated tube 1 and the corrugated pipe holding part 90 are tightly tightly sealed.

Thereafter, air can be injected into the corrugated tube through the air pressure providing part 110 to check whether or not the corrugated tube 1 is cracked.

When the grating pipe 1 is grasped by the grasping device with the grasping device being grasped in the state that the confirmation of the grating pipe cracking is completed, the sensing means 120 grasps it and when it is recognized that the retraction of the grating pipe 1 is started by the sensing means 120 The sliding cylinder 80 is retracted so that the corrugated pipe 1 is separated from the corrugated pipe holding part 90 and then the corrugated pipe 90 is removed from the corrugated pipe holding part 90. Then, (1) to the required point.

10: Bed
20:
30: Guide support
40: Sliding feed screw
50: Guide bar
60: screw power transmission portion
70: Electric motor for screw rotation
80: Sliding transfer part
90: corrugated pipe grip
100: grip cylinder floating cylinder
110: Pneumatic cushioning
120: sensing means
130:

Claims (5)

A bed (10) made of a desk type, a flat plane being located on the upper part, and being installed to mount various components on the plane; A sliding support portion 20 provided at both sides of the bed and having a rectangular parallelepiped shape or a polygonal shape and having a coupling hole formed at the center thereof; A guide support part 30 installed at both ends of the bed and having a rectangular or polygonal shape and a coupling hole formed at the center thereof; A sliding conveying screw 40 which is provided on the sliding support portion and has a cylindrical bar shape and has threads formed on the outer periphery thereof and has a screw thread direction reversed about the center of the screw; A guide part transfer bar 50 which is connected to both sides of the guide support part and is formed in a cylindrical shape; A screw power transmission unit 60 installed at one end of the sliding conveying screw to transmit the power to rotate the sliding conveying screw clockwise or counterclockwise; A screw rotation electric motor (70) coupled to the screw power transmission unit by gear engagement and generating power by driving the motor to transmit a clockwise or counterclockwise rotation power to the screw power transmission unit; The horizontal conveying screw is coupled to the body 2 and has a horizontal receiving part 81 at the bottom and a front vertical panel 82 at the front of the horizontal receiving part 81, A sliding conveyance unit 80 comprising a panel 83; A rubber ring 91 for airtightness is further provided on the outer circumferential edge of the body so as to grip the corrugated tube 81, A bellows gripping part 90 which swells up when the airtight rubber ring 91 is compressed and airtightly expands the bellows tube 1; The front and rear vertical panels are installed on the rear surface of the corrugated pipe holding part 90 and are disposed between the front vertical panel and the rear vertical panel constituting the sliding conveying part and on the rear surface of the rear vertical panel. The rubber ring 91 for airtight sealing is compressed and airtightened so that the bellows tube 1 is airtightly sealed and the bellows holding portion 90 is advanced so that the compression of the airtight rubber ring 91 is released, A grip portion flow cylinder 100 for releasing airtightness; A pneumatic feeder (110) for providing air pressure to the corrugated pipe gripper through the gripper fluid cylinder to test whether the corrugator pipe is cracked; The sliding conveyance unit is installed on the front panel of the sliding conveyance unit. When the corrugated pipe is conveyed between the grasping units, it is confirmed whether the corrugated pipe is cracked or not by driving the electric motor for screw rotation. And a corrugated pipe confirmation sensor 120 for guiding the driving of the electric motor for screw rotation and automatically outputting a signal so that the corrugated pipe can be removed from the corrugated pipe holding part by grasping the corrugated pipe by hand or grasping the corrugated pipe with the tool in the finished state ;
If it is determined that the corrugated pipe is inserted to test the corrugated pipe according to the detection result of the corrugated pipe confirmation sensor 120, a control signal is outputted to the screw rotating motor to rotate the sliding conveying skew, and the corrugated pipe grip is transferred to the center area, If the air pressure is maintained for a certain period of time and the air pressure is maintained, there is no crack in the corrugated tube, and if the air pressure is not applied and the air pressure is not maintained, the corrugated tube The gripping tube is operated to release the expansion of the rubber ring for airtightness, and then the sliding conveying screw is rotated so that the corrugated pipe holding part is moved to both ends Further comprising: a control unit (130) for outputting a control signal to be retracted;
The gripping flow cylinder 100 has a piston 101 mounted therein, an air supply hose 111 installed through the piston 101,
The air providing hose 111 is connected to the pneumatic feeder 110 and is configured to provide air pressure to the corrugated pipe 1 using the air providing hose 111;
Wherein the gripper moving cylinder (100) is provided with a pneumatic pressure from the cylinder air supply device (102) to flow the piston (101). delete delete delete delete
KR1020150064297A 2015-05-08 2015-05-08 A Automatic Crack Test Device of Flexible Pipe KR101719682B1 (en)

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CN111707410A (en) * 2020-06-04 2020-09-25 合肥鑫波焊接波纹管有限公司 Bellows life-span tester

Citations (1)

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Publication number Priority date Publication date Assignee Title
KR101065768B1 (en) 2011-03-23 2011-09-19 아이리얼 주식회사 Apparatus for inspecting airtight of fuel tank and method thereof

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KR20090033344A (en) * 2009-02-24 2009-04-02 천경식 Leaking test apparatus for the tube of a heat exchanger

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101065768B1 (en) 2011-03-23 2011-09-19 아이리얼 주식회사 Apparatus for inspecting airtight of fuel tank and method thereof

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