CN103212887A - Waterproof sealing structure used for laser wet processing of thin-walled tube - Google Patents
Waterproof sealing structure used for laser wet processing of thin-walled tube Download PDFInfo
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- CN103212887A CN103212887A CN2012100158317A CN201210015831A CN103212887A CN 103212887 A CN103212887 A CN 103212887A CN 2012100158317 A CN2012100158317 A CN 2012100158317A CN 201210015831 A CN201210015831 A CN 201210015831A CN 103212887 A CN103212887 A CN 103212887A
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- tube
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- pull bar
- aqueduct
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Abstract
The invention discloses a waterproof sealing structure used for laser wet processing of a thin-walled tube. The waterproof sealing structure comprises a rotary shaft with a hollow structure and a sealed interior, a pull rod formed by a hollow thin-walled seamless tube, a water guide tube used for guiding cooling water into a tube to be processed, and a clamping head component, wherein the pull rod can penetrate through the hollow structure to realize tube transportation and carry out wet cutting operation; the inner diameter of the pull rod is larger than the outer diameter of the tube so as to accommodate the tube to be processed; the water guide tube is a seamless tube of which the outer diameter is smaller than the inner diameter of the tube, and the tail end of the tube is sealed by a sealing plug so as to prevent water flows from overflowing; and the clamping head component is used for being cooperated with the pull rod to clamp and release the tube, wherein the clamping head component is in a labyrinth seal mode, and the joints of the parts of the clamping head component are sealed by rubber O-shaped rings.
Description
Technical field
The present invention relates to the laser micro-machining technology field, be specifically related to be used for the waterproof sealing structure of the wet process of laser.
Background technology
Laser Micro-Machining becomes the main method of thin-wall pipes processing owing to working (machining) efficiency height, few, the noncontact of cutting residue processing, easily realize the advantages such as automation of process.Because the medium and small metal parts of laser processing procedure can produce fast heat in cutting process, and wetly cut processing and keeping the heat affected area temperature having important function aspect minimum, therefore in the processing of microsize part, have advantage.Wet cut to add need man-hour water distributor that high-pressure cooling water is imported to cut point processing parts is cooled off, the water that have certain pressure this moment flows out from tubing, and along with constantly on tubing, cutting out many mesh in the cutting process, water also can be from these mesh to around splash.These current enter interior of rotating shaft easily, and then the operate as normal of machine is caused harmful effect.
In view of this, laser is wet cuts processing technology to machine waterproof sealing demands for higher performance, especially requires to prevent that definitely water smoke from overflowing machine or entering electric-control system, optical system etc.Therefore, this area is needed the wet structure of cutting the waterproof sealing better effects if of equipment of a kind of laser badly.
Summary of the invention
The present invention be intended to solve laser wet cut that process mesohigh water overflows from tubing and cutting process in water smoke from the mesh of cutting, splash so that problem such as access arrangement inside.
For solving the problems of the technologies described above, the present invention proposes a kind of wet waterproof sealing structure of process of cutting of laser that is used for.This waterproof sealing structure comprises: have the rotating shaft of hollow structure and inner sealing, described hollow structure allows pull bar therefrom by carrying and the cutting operation that wets with realization tubing; By the pull bar that the thin-wall seamless pipe of hollow forms, the internal diameter of pull bar greater than tube outer diameter to hold tubing to be processed; Be used for cooling water is imported to the aqueduct of tubing to be processed inside, aqueduct is the external diameter seamless pipe littler than pipe internal diameter, and the end of tubing is sealed to prevent that the water slime flux from going out by seal plug; And clamp part, being used for cooperating and realizing the clamping of tubing and unclamp with pull bar, wherein said clamp part adopts the junction of labyrinth sealing form and its each several part to seal with rubber o-ring.
This sealing structure that the present invention proposes is effective, does not have High-Pressure Water and overflows or be splashed to cutting zone so that influence the operate as normal of electric-control system, optical system etc. cutting process from tubing.
Description of drawings
The wet according to an embodiment of the invention processing schematic diagram of cutting of Fig. 1.
Fig. 2 is rotating shaft collet segment cutaway view according to an embodiment of the invention; And
Reference numeral:
1. linear axis, 2. rotating shaft, tubing 3. to be processed, 4. tubing anchor clamps, 5. laser head, 6. laser head nozzle, 7. module connects material, the connect material annular seal space of module of the retaining ring of module 7-1. connect material, 7-2., the 7-3. module sewage recovery tube that connects material, 8. water supply module, 9. aqueduct, 10. seal plug, 11 vacuum cleaning modules
2-1. joint pin, 2-2. nose circle lid, 2-3. holds inner cap, the 2-4. bearing pin, 2-5. holds collar, 2-6. chuck, 2-7. piston boit, 2-8. spring, 2-9. chuck installing ring, 2-10. rotating shaft outer wall, 2-11. pull bar, tubing 3. to be processed
The specific embodiment
Each preferred embodiment of the present invention below will be discussed.But it will be appreciated by those skilled in the art that herein detailed description not as limiting the scope of the invention, the present invention also can be achieved by modification or other equivalent way of following each embodiment.
Cut in the process in that laser is wet, can utilize rearmounted water guide, preposition water guide, with the coaxial water guide of laser beam, and multiple water guide mode such as laser beam disalignment water guide.In one embodiment of the invention, can adopt rearmounted water guide mode.As shown in Figure 1, aqueduct among the present invention is a seamless pipe that external diameter is littler than pipe internal diameter to be processed, aqueduct is connected with water supply module, import to tubing to be processed inside with the cooling water that will have certain pressure, for preventing that current from overflowing from tubing, seals with seal plug in tube end.Whole tubing is to pass from the interior of rotating shaft of hollow together with aqueduct.Therefore need the inside of rotating shaft is sealed, to prevent aqueduct fracture or aqueduct and tubing afterbody junction seepage is arranged, current enter motor to be influenced the operate as normal of motor or burns out motor.
More specifically, rotating shaft is a hollow structure inside, so that pull bar is passed through from the centre, the rotating shaft of hollow can also be realized tubing conveying function and wet cutting operation function simultaneously.In addition, the tubing that passes the rotating shaft of hollow entirely can be sealed in the pull bar, as shown in Figure 1.Pull bar is the hollow and thin-walled seamless pipe of an internal diameter greater than tube outer diameter, therefore even aqueduct fracture or aqueduct have water to reveal with the tubing junction, current also just leakage in the annular seal space of pull bar, can not be emitted to interior of rotating shaft.In one example, cut processing when adopting rearmounted water guide mode when wet, whole tubing immerses in the aqueduct, even at this moment aqueduct is revealed, current also are to be limited in can not being leaked to the operate as normal that interior of rotating shaft influences motor in the hollow sealing chamber of pull bar.
In one embodiment of the invention, the clamping of tubing and unclamp by pull bar and cooperate with clamp part and realize by the cylinder principle.When left air cavity is inflated, high pressure gas cognition is pushing away pull bar towards right motion, thereby drive pull bar chuck is strained towards right-hand member, up to the internal conical surface of the outer conical surface of chuck and the end collar of rotating shaft left end paste dead till, owing to the chuck of being joined is a collet, this chuck is held the internal conical surface of collar stuck, bear pulling force simultaneously, cause collet to tighten up, tubing is embraced towards the right side, keep this state, tubing will be held tightly by chuck always.In the time of need unclamping tubing, give right air cavity inflation, left side air cavity venting, gases at high pressure promote piston boit and move towards the left side, move towards the left side thereby drive pull bar, and then make the outer conical surface of collet and the internal conical surface of holding collar be separated, keep releasing orientation, this moment, collet relied on the elastic-restoring force of self to keep releasing orientation, and tubing is with released.In order to guarantee to adopt the sealing of 0 shape sealing ring between the air-tightness various piece.
As shown in Figure 1, at collet segment the deathtrap that water may enter is shown, i.e. connecting portion between nose circle lid and end inner cap, end inner cap and end collar and end collar and the chuck with dark.In one embodiment of the invention, nose circle lid, end inner cap, end collar and chuck form the labyrinth sealing form.As shown in the figure, nested against one another between nose circle lid and end inner cap, end inner cap and end collar and end collar and the chuck.In addition, also the rubber o-ring sealing can be adopted in each junction of above-mentioned parts.So, can prevent that sealing enters into interior of rotating shaft from these deathtraps.
No matter be preposition water guide or with laser beam coaxial or disalignment water guide mode, in the chuck 2-6 clamping tubing 3 to be processed rotation at a high speed that adds on the rotating shaft 2 in man-hour, the support that realizes tubing of tubing anchor clamps 4 simultaneously.Be that chuck 2-6 and tubing anchor clamps 4 are treated the 3 realization two ends clampings of processing tubing, an end-grain cutting is cut.Laser head can move up and down, laser head moves down in laser processing procedure, make the laser head nozzle sink in the retaining ring of the module that connects material, retaining ring can prevent that the motlten metal residue that produces in the process etc. from splashing out, and process is to carry out in the annular seal space of module that connects material.The module that connects material is connected with the vacuum suction module, the flue dust that produces when metallic residue that produces during processing metal tubing and machining of non-metallic tubing etc. is in time absorbed by the vacuum cleaning module, wet cutting adds man-hour, discharges or cycling and reutilization behind sewage recovery tube recovery the carrying out filtration, purification of the water smoke cooling back of generation by the module that connects material.Therefore, the water smoke that produces in whole process, gas etc. are limited to connect material in the annular seal space of module, can not expand to and go in the whole machining area, so that influence the operate as normal of electric-control system, optical system etc.
In an example of the present invention, shell has adopted waterproof construction.For example, the shell of rotating shaft can adopt the waterproof material sealing, and introduces the classification of waterproof of IP65.At this moment, can not enter interior of rotating shaft even if there is water smoke to be splashed to machining area from shell yet.
In addition, can also introduce safety alarm device.In one example, sensor can be installed in the annular seal space of pull bar.Have the possibility of current leakage or aqueduct and tubing afterbody junction that seepage is arranged in case aqueduct ruptures, sensor can give the alarm at once, thereby machine is quit work.
The actual proof of using, this sealing structure that the present invention proposes is effective, does not have High-Pressure Water and overflows or be splashed to cutting zone so that influence the operate as normal of electric-control system, optical system etc. cutting process from tubing.
Claims (3)
1. one kind is used for that laser is wet cuts the waterproof sealing structure of process, comprising:
Rotating shaft with hollow structure and inner sealing, described hollow structure allow pull bar therefrom by carrying and the cutting operation that wets with realization tubing;
By the pull bar that the thin-wall seamless pipe of hollow forms, the internal diameter of pull bar greater than tube outer diameter to hold tubing to be processed;
Be used for cooling water is imported to the aqueduct of tubing to be processed inside, aqueduct is the external diameter seamless pipe littler than pipe internal diameter, and the end of tubing is sealed to prevent that the water slime flux from going out by seal plug; And
Clamp part is used for cooperating with pull bar and realizes the clamping of tubing and unclamp, and wherein said clamp part adopts the junction of labyrinth sealing form and its each several part to seal with rubber o-ring.
2. waterproof sealing structure as claimed in claim 1 is characterized in that the shell of rotating shaft is sealed by waterproof material, enters interior of rotating shaft to prevent water from shell.
3. waterproof sealing structure as claimed in claim 1 is characterized in that, in pull bar inside sensor is installed, and when there was seepage aqueduct fracture or aqueduct and tubing afterbody junction, described sensor gave the alarm with shut-down operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210015831.7A CN103212887B (en) | 2012-01-19 | 2012-01-19 | For thin-wall pipes laser wet processing waterproof sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210015831.7A CN103212887B (en) | 2012-01-19 | 2012-01-19 | For thin-wall pipes laser wet processing waterproof sealing structure |
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| Publication Number | Publication Date |
|---|---|
| CN103212887A true CN103212887A (en) | 2013-07-24 |
| CN103212887B CN103212887B (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210015831.7A Active CN103212887B (en) | 2012-01-19 | 2012-01-19 | For thin-wall pipes laser wet processing waterproof sealing structure |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11214773A (en) * | 1998-01-21 | 1999-08-06 | Keyence Corp | Solid-state laser oscillator and laser marking equipment |
| JPH11274612A (en) * | 1998-03-19 | 1999-10-08 | Keyence Corp | Solid laser oscillator and laser marking device |
| JP2002239625A (en) * | 2001-02-21 | 2002-08-27 | Nisshin Steel Co Ltd | Internal shielding tool and method for manufacturing tube |
| CN101380690A (en) * | 2007-09-05 | 2009-03-11 | 上海中集冷藏箱有限公司 | TIG welding gun and welding cooling method |
| CN202506964U (en) * | 2012-01-19 | 2012-10-31 | 昆山思拓机器有限公司 | Waterproof sealing structure for laser wet machining of thin-wall pipe |
-
2012
- 2012-01-19 CN CN201210015831.7A patent/CN103212887B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11214773A (en) * | 1998-01-21 | 1999-08-06 | Keyence Corp | Solid-state laser oscillator and laser marking equipment |
| JPH11274612A (en) * | 1998-03-19 | 1999-10-08 | Keyence Corp | Solid laser oscillator and laser marking device |
| JP2002239625A (en) * | 2001-02-21 | 2002-08-27 | Nisshin Steel Co Ltd | Internal shielding tool and method for manufacturing tube |
| CN101380690A (en) * | 2007-09-05 | 2009-03-11 | 上海中集冷藏箱有限公司 | TIG welding gun and welding cooling method |
| CN202506964U (en) * | 2012-01-19 | 2012-10-31 | 昆山思拓机器有限公司 | Waterproof sealing structure for laser wet machining of thin-wall pipe |
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| Publication number | Publication date |
|---|---|
| CN103212887B (en) | 2015-12-02 |
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