CN103212884B - The shaft device of integrated thin-wall pipes Pneumatic clamping mechanism - Google Patents

The shaft device of integrated thin-wall pipes Pneumatic clamping mechanism Download PDF

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Publication number
CN103212884B
CN103212884B CN201210015827.0A CN201210015827A CN103212884B CN 103212884 B CN103212884 B CN 103212884B CN 201210015827 A CN201210015827 A CN 201210015827A CN 103212884 B CN103212884 B CN 103212884B
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China
Prior art keywords
pull bar
tubing
shaft device
module
driving motor
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CN103212884A (en
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魏志凌
宁军
夏发平
马秀云
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Kunshan Theta Micro Co Ltd
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Kunshan Theta Micro Co Ltd
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Abstract

The invention discloses a kind of shaft device of integrated thin-wall pipes Pneumatic clamping mechanism.This shaft device is that the structure of inner hollow is to realize tubing conveying and to carry out wet cutting operation.This shaft device comprises: rotating shaft shell module; Pull bar module, comprises pull bar, tubing and direct driving motor, and wherein pull bar is formed by the thin-wall seamless pipe of hollow, and the internal diameter of pull bar is greater than tube outer diameter to hold tubing to be processed, and pull bar is coupling on the mover of direct driving motor regularly; And chuck module, realize the clamping of tubing for auxiliary connecting rod module and unclamp.Pull bar inside is provided with sensor, and this sensor identification metal material and nonmetallic materials are so that tubing counts and realizes automatic feed.

Description

The shaft device of integrated thin-wall pipes Pneumatic clamping mechanism
Technical field
The present invention relates to thin-wall pipes laser micro-machining technology field, be specifically related to a kind of shaft device of integrated thin-wall pipes air gripper mechanism.
Background technology
Along with the development of laser micro-machining technology, for pursuing the processing effect of high-speed, high precision, many key core components and parts are used in laser micro-processing equipment field.And precision rotation axle is as the requisite core component of numerically controlled processing equipment, be widely used in high-accuracy laser process equipment.At present, the external import of the many dependence of precision rotation axle of Laser Micro-Machining use.Inconvenient maintenance after these precision rotation axle prices high, delivery cycle length, complex structure, component damage of introducing, and because they are all be introduced into as standard component, be difficult to carry out flexible design for change according to concrete application scenario and meet concrete application scenario, these constrain making smooth advances from master project all greatly.
Therefore, the high-accuracy shaft device of a kind of integrated thin-wall pipes Pneumatic clamping mechanism of independent research is needed badly.
Summary of the invention
The present invention is intended to solve the technical problems such as shaft device clamping tubing high-precision rotary, compatible tubing automatic feed and waterproof seal.
For solving the problems of the technologies described above, the invention provides a kind of shaft device of integrated thin-wall pipes Pneumatic clamping mechanism, this shaft device is that the structure of inner hollow is to realize tubing conveying and to carry out wet cutting operation.Shaft device comprises: rotating shaft shell module; Pull bar module, comprises pull bar, tubing and direct driving motor, and wherein pull bar is formed by the thin-wall seamless pipe of hollow, and the internal diameter of pull bar is greater than tube outer diameter to hold tubing to be processed, and pull bar is coupling on the mover of direct driving motor regularly; And chuck module, realize the clamping of tubing for auxiliary connecting rod module and unclamp.Pull bar inside is provided with sensor, and sensor identification metal material and nonmetallic materials are so that tubing counts and realizes automatic feed.
The shaft device that the present invention proposes has can clamp tubing high-precision rotary, compatible tubing automatic feed, waterproof seal is good, support tubing is wet cuts the advantages such as processing and multiple water guide mode.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of shaft device according to an embodiment of the invention; And
Fig. 2 is the structural representation of shaft device according to an embodiment of the invention.
Reference numeral:
1. pull bar knob, 2. pull bar lid, 3. piston bush, 4. draw-bar seat, 5. piston inner sleeve, 6. rolling bearing, 7. axle sleeve, 8. pull bar, 9. tubing, 10. direct driving motor, 11. joint pins, 12. piston boits, 13. spring 14. nose circle lids, 15. end inner caps, 16. bearing pins, 17. chuck installing rings, 18. end collars, 19. chucks, 20. rear end caps, 21. thin-walled end caps, 22. rotating shaft outer walls, 23. right end caps, 24. mounting seat, 25. sensors.
Detailed description of the invention
Each preferred embodiment of the present invention below will be discussed.But it will be appreciated by those skilled in the art that detailed description is not herein as limiting the scope of the invention, the present invention is also achieved by the modification of following embodiment or other equivalent way.
In one embodiment of the invention, the shaft device for integrated thin-wall pipes Pneumatic clamping mechanism comprises pull bar module, rotating shaft shell module and chuck module.
Exemplarily, as shown in Figure 1, pull bar module can comprise: 1. pull bar knob, 2. pull bar lid, 3. piston bush, 4. draw-bar seat, 5. piston inner sleeve, 6. rolling bearing, 7. axle sleeve, 8. pull bar, 9. tubing, 10. direct driving motor.The effect of pull bar module be realize tubing clamping and unclamp.The clamping of pull bar module and the process of unclamping tubing are realized by cylinder principle.As shown in the figure, pull bar module, by the mover of direct driving motor that is coupling in regularly in shaft device, can be rotated with mover.Chuck is then by being screwed in the right-hand member screwed hole of pull bar module from rotating shaft left end.When illustrating the inflation of left air cavity, high pressure gas cognition pushes pull bar module towards right motion, thus drive pull bar to be strained towards right-hand member by chuck, until the internal conical surface of the end collar of the outer conical surface of chuck and shaft device left end pastes extremely, because joined chuck is collet, this chuck is held the internal conical surface of collar stuck, bear the pulling force towards the right side simultaneously, cause collet to tighten up, tubing is embraced, keep this state, tubing will be held tightly by chuck always.When needing to unclamp tubing, inflate to right air cavity, left air cavity venting, gases at high pressure promote piston boit and move towards left side, thus drive pull bar to move towards left side, and then the outer conical surface of collet is separated with the internal conical surface of end collar, keep releasing orientation, now collet relies on the elastic-restoring force of self to keep releasing orientation, and tubing is by released.In order to ensure to adopt 0 shape sealing ring sealing between air-tightness various piece.
In one example, the direct driving motor that high-performance is non-maintaining can be adopted, it is advantageous that the high speed feed that can realize rotating shaft, high acceleration and high accuracy.The design of Direct driver joint pin taked by motor, can omit reduction gearing, therefore can reach high acceleration and the high accuracy of rotating shaft.Meanwhile, because direct driving motor is built-in, can directly be combined with rotating shaft and not need to use mechanical attachment mechanism.
Joint pin is connected with direct driving motor by screw, and the high-speed rotating shaft of rotor drives the High Rotation Speed with the pull bar of joint pin interference fit, pull bar clamping tubing, thus realizes the high-precision rotary of tubing.When pull bar is driven high-precision rotary by direct drive motor rotor, rolling bearing is used for tie-strut.Grease supply lubricating bearings can support 20000 rev/min.
Rotating shaft is the structure of inner hollow, and pull bar can be allowed to pass through from centre, and the rotating shaft of hollow can realize tubing conveying function and wet cutting operation function simultaneously.Pull bar is the thin-wall seamless pipe of hollow and pull bar internal diameter is greater than tube outer diameter to hold tubing to be processed.Pull bar inside can form annular seal space.Add man-hour when carrying out wet cutting, adopt rearmounted water guide mode, now whole tubing immerses in aqueduct, once aqueduct is revealed, current are also in the hollow sealing chamber of pull bar, can not be leaked to the normal work that interior of rotating shaft affects motor.
Chuck module, realizes the clamping of tubing for auxiliary connecting rod module and unclamps.As shown in Figure 1, chuck module comprises: 11. joint pins, 12. piston boits, 13. spring 14. nose circle lids, 15. end inner caps, 16, bearing pin, 17. chuck installing rings, 18. end collars, 19. chucks.Collet segment takes mazy seal form, makes to add man-hour wet cutting, and the water smoke of machining area can not enter into interior of rotating shaft.
Rotating shaft shell module comprises: 20. rear end caps, 21. thin-walled end caps, 22. rotating shaft outer walls, 23. right end caps, 24. mounting seat.Shell there are two external tappings: one is encoder lead-out wire, and another is motor power outgoing line.In one example, rotating shaft shell can adopt waterproof material to make, classification of waterproof IP65, so that anti-dust and water spatter effectively.By mounting seat, rotating shaft entirety can be fixed on linear axis upper mounting plate very easily.Entirety is convenient to install (being installed on linear axis platform), location.In addition, also can utilize alignment pin, realize coarse positioning.
Can at the inner sensor installation 25 of pull bar.Like this, carry out wet cut processing technology time, if can security alarm be provided when having current to reveal.Such as, when there is seepage aqueduct fracture or aqueduct and tubing afterbody junction in machining area, described sensor sends safety alarm with shut-down operation.Secondly, this sensor is identifiable design metal material and nonmetallic materials also, thus are convenient to tubing counting, realize automatic feed function.

Claims (4)

1. a shaft device for integrated thin-wall pipes Pneumatic clamping mechanism, described shaft device is that the structure of inner hollow is carried to realize tubing and carries out wet cutting operation, and described shaft device comprises:
Rotating shaft shell module;
Pull bar module, comprises pull bar, tubing and direct driving motor, and wherein pull bar is formed by the thin-wall seamless pipe of hollow, and the internal diameter of pull bar is greater than tube outer diameter to hold tubing to be processed, and pull bar is coupling on the mover of direct driving motor regularly; And
Chuck module, realizes the clamping of tubing for auxiliary connecting rod module and unclamps,
Wherein pull bar inside is provided with sensor, and described sensor identification metal material and nonmetallic materials are so that tubing counts and realizes automatic feed.
2. shaft device as claimed in claim 1, it is characterized in that, chuck module is configured to mazy seal form.
3. shaft device as claimed in claim 1, is characterized in that, rotating shaft shell module adopts waterproof material sealing, enters shaft device inside to prevent water from outside.
4. shaft device as claimed in claim 1, is characterized in that, when there is seepage aqueduct fracture in machining area or aqueduct and tubing afterbody junction, described sensor sends safety alarm with shut-down operation.
CN201210015827.0A 2012-01-19 2012-01-19 The shaft device of integrated thin-wall pipes Pneumatic clamping mechanism Active CN103212884B (en)

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CN103212884B true CN103212884B (en) 2015-08-26

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103495880A (en) * 2013-10-03 2014-01-08 安徽白兔湖动力有限公司 Double-cavity type steam-driven rotary tensioning device
CN103769970B (en) * 2013-12-27 2016-09-07 厦门钨业股份有限公司 A kind of straight line feeding-discharging mechanism of bar fully-automatic chamfering machine
CN104057412A (en) * 2014-07-03 2014-09-24 昆山允可精密工业技术有限公司 Rotating shaft for clamping tube products or bar stocks

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4576528A (en) * 1984-03-13 1986-03-18 Sollami Phillip A Rotary tool holder
US4762447A (en) * 1986-09-23 1988-08-09 Optima Industries, Inc. Dual-plane high-speed collet
CN1033763A (en) * 1987-10-13 1989-07-12 科瓦尔工具公司 Tool clip locking device
CN1057606A (en) * 1990-06-15 1992-01-08 耶各夹具技术股份有限公司 Be used to adjust the method and apparatus at chuck center
CN1253059A (en) * 1998-11-10 2000-05-17 昭和株式会社 Clamping apparatus
CN1974085A (en) * 2006-12-18 2007-06-06 汤秀清 Air floated high speed electric mandrel
CN201470895U (en) * 2009-08-07 2010-05-19 周清明 Rotary shaft of air bearing electric main-shaft
CN202506995U (en) * 2012-01-19 2012-10-31 昆山思拓机器有限公司 Rotating shaft device of integrated thin-wall tubular product pneumatic clamping mechanism

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4576528A (en) * 1984-03-13 1986-03-18 Sollami Phillip A Rotary tool holder
US4762447A (en) * 1986-09-23 1988-08-09 Optima Industries, Inc. Dual-plane high-speed collet
CN1033763A (en) * 1987-10-13 1989-07-12 科瓦尔工具公司 Tool clip locking device
CN1057606A (en) * 1990-06-15 1992-01-08 耶各夹具技术股份有限公司 Be used to adjust the method and apparatus at chuck center
CN1253059A (en) * 1998-11-10 2000-05-17 昭和株式会社 Clamping apparatus
CN1974085A (en) * 2006-12-18 2007-06-06 汤秀清 Air floated high speed electric mandrel
CN201470895U (en) * 2009-08-07 2010-05-19 周清明 Rotary shaft of air bearing electric main-shaft
CN202506995U (en) * 2012-01-19 2012-10-31 昆山思拓机器有限公司 Rotating shaft device of integrated thin-wall tubular product pneumatic clamping mechanism

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