CN203738050U - Three-jaw chuck clamp for turning eccentric hole in square workpiece in centering mode - Google Patents

Three-jaw chuck clamp for turning eccentric hole in square workpiece in centering mode Download PDF

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Publication number
CN203738050U
CN203738050U CN201420033007.9U CN201420033007U CN203738050U CN 203738050 U CN203738050 U CN 203738050U CN 201420033007 U CN201420033007 U CN 201420033007U CN 203738050 U CN203738050 U CN 203738050U
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China
Prior art keywords
clamping jaw
chuck
jaw
clamping
workpiece
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Active
Application number
CN201420033007.9U
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Chinese (zh)
Inventor
王润
常力
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.)
Changchun Railway Vehicles Co Ltd
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Changchun Railway Vehicles Co Ltd
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Filing date
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Application filed by Changchun Railway Vehicles Co Ltd filed Critical Changchun Railway Vehicles Co Ltd
Priority to CN201420033007.9U priority Critical patent/CN203738050U/en
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Abstract

The utility model discloses a three-jaw chuck clamp for turning an eccentric hole in a square workpiece in a centering mode. The three-jaw chuck clamp comprises a three-jaw chuck, clamping jaw bases and chuck wrench bases, and is characterized in that the clamping jaw base on the upper portion is connected with a middle clamping jaw with the plane bottom face, the two clamping jaw bases on the lower portion are connected with a left clamping jaw and a right clamping jaw respectively, the clamping faces of the left clamping jaw and the right clamping jaw are in right-angle shapes, and the center of the circular hole of the workpiece and the center of the chuck are coincided. According to the three-jaw chuck clamp, the square workpiece can be conveniently, easily and tightly clamped on a turning lathe through the left right-angle-shaped clamping jaw, the right right-angle-shaped clamping jaw and the middle clamping jaw with the plane bottom face, the center of the circular hole needed to be machined and the center of the chuck are coincided, the eccentric hole or an non-eccentric hole in the square workpiece is machined through one-time clamping, the workpiece does not need to be transferred to other machine tools, and compared with boring mill machining, the machining cost of the common turning lathe is low; a tool is simple, and the size and the accuracy of the circular hole are well controlled.

Description

For the scroll chuck fixture of square cross centering eccentric hole of vehicle
Technical field
The utility model relates to a kind of scroll chuck fixture, especially relates to a kind of fixture for square cross eccentric hole of vehicle.
Background technology
In railway passenger car bogie processing and manufacturing; often can run into the situation of processing eccentric circular hole on square cross; especially when the Circularhole diameter of processing is greatly when (Φ > 60mm); adopt the brill-techniques such as expansion-boring to make manufacturing procedure long; need use different lathes instead and complete processing; hole centralized positioning precision is poor, usually has off-gage phenomenon to produce.
Utility model content
The purpose of this utility model is to provide a kind of scroll chuck of eccentric hole of vehicle, solves square cross eccentric circular hole and processes problem loaded down with trivial details, hole centralized positioning low precision.
For achieving the above object, the utility model provides a kind of scroll chuck fixture for square cross centering eccentric hole of vehicle, comprise scroll chuck, master jaw, chuck handle seat, it is characterized in that: master jaw above connects a middle claw that bottom surface is plane, two master jaws below connect respectively the left and right claw that a clamping face is right angle, and the center of circular hole of workpiece overlaps with chuck hub.
In middle claw, be connected with elastic bearing, to overcome the empty clamping problem of workpiece and middle claw.
The middle claw that the utility model is plane by claw and the bottom surface of left and right square can facilitate makes square cross clamp on lathe like a cork, and make to need the center of circular hole of processing to overlap with chuck hub, complete the processing in eccentric orfice on square cross (or non-eccentricity hole) by clamped one time, and do not need to change other lathe, Boring machine processing relatively, engine lathe processing cost is lower; Cutter is simple; Circular hole size and ratio of precision are better controlled.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the elastic support structure schematic diagram connecting in middle claw.
Detailed description of the invention
With reference to Fig. 1, the utility model comprises scroll chuck 1, master jaw 2, chuck handle seat 6, master jaw above connects a middle claw 3 that bottom surface is plane, square shaped workpiece is assisted up and down to neutralization clamping, two master jaws below connect respectively the left and right claw 6,5 that a clamping face is right angle, square shaped workpiece carries out left and right to neutralization clamping, the design and installation of claw need be carried out according to the concrete size of work mounting s plate and circular hole offset, and the center of circular hole of work mounting s plate 4 is overlapped with chuck hub.
With reference to Fig. 2, in middle claw, be connected with elastic bearing, the empty clamping problem of middle claw being caused to overcome work mounting s plate outer profile size height and width tolerance.

Claims (2)

1. the scroll chuck fixture for square cross centering eccentric hole of vehicle, comprise scroll chuck, master jaw, chuck handle seat, it is characterized in that: master jaw above connects a middle claw that bottom surface is plane, two master jaws below connect respectively the left and right claw that a clamping face is right angle, and the center of circular hole of workpiece overlaps with chuck hub.
2. the scroll chuck fixture for square cross centering eccentric hole of vehicle according to claim 1, is characterized in that: in middle claw, be connected with elastic bearing.
CN201420033007.9U 2014-01-20 2014-01-20 Three-jaw chuck clamp for turning eccentric hole in square workpiece in centering mode Active CN203738050U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420033007.9U CN203738050U (en) 2014-01-20 2014-01-20 Three-jaw chuck clamp for turning eccentric hole in square workpiece in centering mode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420033007.9U CN203738050U (en) 2014-01-20 2014-01-20 Three-jaw chuck clamp for turning eccentric hole in square workpiece in centering mode

Publications (1)

Publication Number Publication Date
CN203738050U true CN203738050U (en) 2014-07-30

Family

ID=51337913

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420033007.9U Active CN203738050U (en) 2014-01-20 2014-01-20 Three-jaw chuck clamp for turning eccentric hole in square workpiece in centering mode

Country Status (1)

Country Link
CN (1) CN203738050U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104493220A (en) * 2014-11-25 2015-04-08 重庆易初机械有限公司 Chuck clamping head with changeable clamping faces
CN106270816A (en) * 2016-08-31 2017-01-04 浙江台玖精密机械有限公司 The flexibly positioned gear hobbing tooling of sheet type
CN110496978A (en) * 2019-08-06 2019-11-26 绍兴市子辉机械制造厂 A kind of three-jaw structure of clamping square workpiece scroll chuck

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104493220A (en) * 2014-11-25 2015-04-08 重庆易初机械有限公司 Chuck clamping head with changeable clamping faces
CN106270816A (en) * 2016-08-31 2017-01-04 浙江台玖精密机械有限公司 The flexibly positioned gear hobbing tooling of sheet type
CN110496978A (en) * 2019-08-06 2019-11-26 绍兴市子辉机械制造厂 A kind of three-jaw structure of clamping square workpiece scroll chuck

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