CN104368835B - A kind of floating chuck - Google Patents

A kind of floating chuck Download PDF

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Publication number
CN104368835B
CN104368835B CN201410654098.2A CN201410654098A CN104368835B CN 104368835 B CN104368835 B CN 104368835B CN 201410654098 A CN201410654098 A CN 201410654098A CN 104368835 B CN104368835 B CN 104368835B
Authority
CN
China
Prior art keywords
pawl
chuck
disk body
end pawl
floating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
CN201410654098.2A
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Chinese (zh)
Other versions
CN104368835A (en
Inventor
孙贤青
刘小成
孙贤良
李传飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIDEFU MECHANICS AND TECHNOLOGY (CHANGZHOU) CO., LTD.
Original Assignee
Changzhou Beidefu Machinery Science & Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changzhou Beidefu Machinery Science & Technology Co Ltd filed Critical Changzhou Beidefu Machinery Science & Technology Co Ltd
Priority to CN201410654098.2A priority Critical patent/CN104368835B/en
Publication of CN104368835A publication Critical patent/CN104368835A/en
Application granted granted Critical
Publication of CN104368835B publication Critical patent/CN104368835B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02Chucks
    • B23B31/10Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/16Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially

Abstract

The present invention relates to clamp art, especially a kind of floating chuck, including disk body of chuck, disk body is provided with several end pawls setting workpiece for card, and be arranged on chuck hub coordinate with end pawl for location top, end pawl is connected by oscillating bearing and disk body are fixing, is provided with and is easy to end pawl and does, for fulcrum, the drive mechanism that beat moves with oscillating bearing in disk body.The invention provides a kind of floating chuck, claw can produce week rearward pulling force, workpiece locating surface is made more to fit, claw has radial floating function, when workpiece configurations and positioning datum are the most concentric, gripper jaw radial floating can be reached, the gripper jaw arriving first workpiece is made to suspend stress, and the gripper jaw now additionally also not arriving surface of the work may continue to advance, until pawl of each end can arrive piece-holder face, power of distributing unitedly again is clamped workpiece, has the end pawl of the function that deflects can deflect when clamping irregular external diameter, and amount of floating is bigger.

Description

A kind of floating chuck
Technical field
The present invention relates to clamp art, especially a kind of floating chuck.
Background technology
Along with the development of metal machining Processes and apparatus, needed for adding man-hour, fixture updates the most therewith.Float Chuck is widely used as major mechanical processing universal fixturing, but existing floating chuck is tied by self The restriction of structure, when the workpiece configurations processed and centralized positioning benchmark are concentric, owing to amount of floating is little, end pawl There is no beat function, stationkeeping ability difference etc., significantly limit the use of floating chuck.
Utility model content
The technical problem to be solved in the present invention is: little in order to solve the amount of floating of existing floating chuck, it is impossible to The problem of enough workpiece well clamping irregular external diameter, the invention provides a kind of floating chuck, first adopts Use top location, then by making oscillating bearing be fixed with disk body by end pawl, be easy to the end by being provided with in disk body Pawl does the drive mechanism of beat motion with oscillating bearing for fulcrum, adds the amount of floating of end pawl, in clamping not Can deflect during rule external diameter.
The technical solution adopted for the present invention to solve the technical problems is: a kind of floating chuck, including chuck disk Body, disk body is provided with several end pawls setting workpiece for card, and is arranged on chuck hub and coordinates with end pawl Top for position, pawl of the described end is connected by oscillating bearing and disk body are fixing, is provided with just in described disk body In end pawl with oscillating bearing for fulcrum do beat motion drive mechanism, pawl of the described end include claw, pawl body with And it being arranged on the spherical rotation section of pawl body end, described drive mechanism includes
Lower link,
Upper connecting rod,
Upper piston,
Lower piston,
Slip bulb, described slip bulb includes ball head and the slide section of fixing connection, and
End pawl slide block, pawl slide block of the described end is provided with the ball recess coordinated with spherical rotation section, and pawl of the described end is sliding Block is provided with the hypotenuse being easy to drive end pawl slide block movement,
Described lower link and the fixing connection of upper connecting rod, and it is arranged on chuck hub, described upper piston and lower piston It is connected, and is connected by oscillating bearing and upper connecting rod are fixing, formed between described upper piston and lower piston Having the groove of the ball head accommodating slip bulb, ball head is slidably arranged in groove, pawl slide block of the described end The spherical rotation section of ball recess sheathed bottom set pawl, the hypotenuse of pawl slide block of the described end and the slide section of slip bulb It is slidably connected.
Specifically, pawl at the bottom of described disk body of chuck is provided with three.
Specifically, described top it is fixedly installed chuck hub.
Specifically, described top top with the telescopic that end pawl coordinates for being arranged on chuck hub.
The invention has the beneficial effects as follows: the invention provides a kind of floating chuck, clamping with centre bore and its When the workpiece of his centralized positioning, its workpiece configurations and centralized positioning benchmark be not concentric, there is the biggest advantage, Because claw can produce week rearward pulling force, making workpiece locating surface more fit, claw has radial floating function, when When workpiece configurations is the most concentric with positioning datum, gripper jaw radial floating can be reached, make to arrive first the clamping of workpiece Pawl suspends stress, and now the worst gripper jaw not arriving surface of the work may continue to advance, until each End pawl can arrive piece-holder face, then power of distributing unitedly is clamped workpiece, has the end of the function that deflects Pawl can deflect when clamping irregular external diameter, and amount of floating is bigger.
Accompanying drawing explanation
With embodiment, the utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of a kind of floating chuck of the present invention;
Fig. 2 be in Fig. 1 A-A to sectional view.
In figure: 1. disk body, 2. end pawl, 3. oscillating bearing, 21. claws, 22. pawl bodies, 23. balls Shape rotation section, 4. lower link, 5. upper connecting rod, 6. upper piston, 7. lower piston, 8. slip bulb, 81. Ball head, 82. slide section, 9. end pawl slide block, 91. ball recess, 92. hypotenuses, 10. bottom surface, 20. Top.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, The basic structure of the present invention is described the most in a schematic way, and therefore it only shows the composition relevant with the present invention.
As it is shown in figure 1, a kind of floating chuck, including disk body of chuck 1, disk body 1 is provided with at the bottom of three Pawl 2, and be fixedly installed on chuck hub coordinate with end pawl for location top 20, end pawl 2 includes card Pawl 21, pawl body 22 and be arranged on the spherical rotation section 23 of pawl body 22 end, pawl body 22 passes through joint shaft Hold 3 fixing with disk body 1 to be connected, be provided with in disk body 1 and be easy to end pawl 2 and do partially for fulcrum with oscillating bearing 3 The drive mechanism of pendular motion, drive mechanism includes lower link 4, upper connecting rod 5, upper piston 6, lower piston 7,
Slip bulb 8, slip bulb 8 includes ball head 81 and the slide section 82 of fixing connection, and
End pawl slide block 9, end pawl slide block 9 is provided with the ball recess 91 coordinated with spherical rotation section 23, end pawl Slide block 9 is provided with the hypotenuse 92 being easy to drive the motion of end pawl slide block 9,
Lower link 4 and the fixing connection of upper connecting rod 5, and it is arranged on chuck hub, upper piston 6 and lower piston 7 Be connected, and fixed by oscillating bearing 3 and upper connecting rod 5 and be connected, upper piston 6 and lower piston 7 it Between be formed with the groove of ball head 81 accommodating slip bulb 8, ball head 81 is slidably arranged in groove, The spherical rotation section 23 of the ball recess 91 sheathed bottom set pawl 2 of end pawl slide block 9, the hypotenuse of end pawl slide block 9 92 are slidably connected with the slide section 82 of slip bulb 8.
The most top 20 can also be that telescopic is top
The operation principle of a kind of floating chuck of the present invention is:
Clamping process: first with top 20 location, lower link 4 drives upper connecting rod 5 backward (with the F side in scheming To for rear to) motion, force oscillating bearing 3 to drive upper piston 6 and lower piston 7 rearward movement, thus Make slip bulb 8 drive end pawl slide block 9 to disk body 1 center opposite direction move, thus drive end pawl 2 with Oscillating bearing 3 does lever motion for fulcrum and reaches to clamp the effect of workpiece.
Make the centripetal unbalance stress of end pawl 2 when the profile of workpiece and its center hole be not on the same center of circle, compel Make pawl 2 at the bottom of some or two move in reverse direction, make end pawl 2 do lever fortune with oscillating bearing 3 for fulcrum Dynamic, thus drive end pawl slide block 9 to move to the direction, the center of circle of housing, drive slip bulb 8 to move, force Piston does direction motion with slip bulb 8 center of circle, forces oscillating bearing 3 to do direction motion, when pawl at the bottom of three During 2 stress equalization, it is achieved clamping workpiece.
When end pawl 2 Impact direction is not direction, the center of circle, workpiece drives end pawl 2 that end pawl 2 can be made with joint shaft Holding 3 with the bottom surface 10 of disk body is obligatory point, swings, to reach Impact direction for direction, the center of circle.
Reseting procedure: lower link 4 drives upper connecting rod 5 (with the rightabout of the F in scheming for front to) forward Motion, forces oscillating bearing 3 to drive upper piston 6 and lower piston 7 to travel forward, so that slip bulb 8 Drive end pawl slide block 9 to move to disk body 1 center position, thus drive end pawl 2 with oscillating bearing 3 for propping up Point does lever motion and reaches to unclamp the effect of workpiece.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant Staff can carry out various change completely in the range of without departing from this utility model technological thought And amendment.The content that the technical scope of this utility model is not limited on specification, it is necessary to root Its technical scope is determined according to right.

Claims (4)

1. a floating chuck, including disk body of chuck (1), disk body (1) is provided with several and sets work for card The end pawl (2) of part, and be arranged on chuck hub coordinate with end pawl for location top (20), the described end Pawl (2) is connected by oscillating bearing (3) and disk body (1) are fixing, is provided with and is easy in described disk body (1) End pawl (2) with oscillating bearing (3) be fulcrum do beat motion drive mechanism, it is characterised in that: described End pawl (2) includes claw (21), pawl body (22) and is arranged on the spherical rotation of pawl body (22) end Portion (23), described drive mechanism includes
Lower link (4),
Upper connecting rod (5),
Upper piston (6),
Lower piston (7),
Slip bulb (8), described slip bulb (8) includes ball head (81) and the slide section of fixing connection , and end pawl slide block (9), (82) described end pawl slide block (9) is provided with and coordinates with spherical rotation section (23) Ball recess (91), described end pawl slide block (9) is provided with the hypotenuse (92) being easy to drive end pawl slide block (9) to move,
Described lower link (4) and the fixing connection of upper connecting rod (5), and it is arranged on chuck hub, described upper work Plug (6) is connected with lower piston (7), and fixing even by oscillating bearing (3) and upper connecting rod (5) Connect, between described upper piston (6) and lower piston (7), be formed with the ball head (81) accommodating slip bulb (8) Groove, ball head (81) is slidably arranged in groove, the ball recess (91) of described end pawl slide block (9) The spherical rotation section (23) of sheathed bottom set pawl (2), the hypotenuse (92) of described end pawl slide block (9) and slip The slide section (82) of bulb (8) is slidably connected.
2. floating chuck as claimed in claim 1, it is characterised in that: described disk body of chuck (1) is provided with Pawl (2) at the bottom of three.
3. floating chuck as claimed in claim 1, it is characterised in that: described top (20) are fixedly installed At chuck hub.
4. floating chuck as claimed in claim 1, it is characterised in that: described top (20) are for being arranged on The telescopic that chuck hub coordinates with end pawl is top.
CN201410654098.2A 2014-11-18 2014-11-18 A kind of floating chuck Active CN104368835B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410654098.2A CN104368835B (en) 2014-11-18 2014-11-18 A kind of floating chuck

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410654098.2A CN104368835B (en) 2014-11-18 2014-11-18 A kind of floating chuck

Publications (2)

Publication Number Publication Date
CN104368835A CN104368835A (en) 2015-02-25
CN104368835B true CN104368835B (en) 2016-08-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105058235B (en) * 2015-08-17 2017-04-12 张家港巨盛数控设备科技有限公司 Tracking and positioning device for clamping of workpieces
CN105563324B (en) * 2016-03-09 2017-12-22 温岭哈斯特机械有限公司 A kind of peripheral milling air spider
CN111498582B (en) * 2020-04-26 2021-11-12 上海精测半导体技术有限公司 Swing leveling mechanism and leveling system
CN113070502A (en) * 2021-04-01 2021-07-06 浙江京速机床附件有限公司 Powerful chuck

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2373351B1 (en) * 1976-12-09 1980-02-08 Tobler Meca Precision Franco S
JPH10296512A (en) * 1997-04-24 1998-11-10 Nissan Motor Co Ltd Chuck
DE10207567A1 (en) * 2002-02-22 2003-09-04 Roehm Gmbh A ball pin chuck
JP4634113B2 (en) * 2004-10-04 2011-02-23 帝国チャック株式会社 Swing-in type chuck device and work machining method
CN103111647B (en) * 2013-03-08 2015-06-24 清华大学 Center floating type chuck
CN204234773U (en) * 2014-11-18 2015-04-01 常州倍得福机械科技有限公司 A kind of floating chuck

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Address after: 213000 Zhuangcun, Hengshanqiao Town, Wujin District, Changzhou City, Jiangsu Province

Patentee after: BEIDEFU MECHANICS AND TECHNOLOGY (CHANGZHOU) CO., LTD.

Address before: 213000 No. 8 Zhengda Road, Qishuyan District, Changzhou City, Jiangsu Province

Patentee before: CHANGZHOU BEIDEFU MACHINERY SCIENCE & TECHNOLOGY CO., LTD.