CN202021355U - Lathe chuck - Google Patents
Lathe chuck Download PDFInfo
- Publication number
- CN202021355U CN202021355U CN2011200513606U CN201120051360U CN202021355U CN 202021355 U CN202021355 U CN 202021355U CN 2011200513606 U CN2011200513606 U CN 2011200513606U CN 201120051360 U CN201120051360 U CN 201120051360U CN 202021355 U CN202021355 U CN 202021355U
- Authority
- CN
- China
- Prior art keywords
- chuck
- chuck body
- pull bar
- pawl
- machine
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model provides a lathe chuck, which belongs to the technical field of machinery, and solves the problems of complicated lathe chuck structure, worse clamping effect and the like. The lathe chuck comprises a pull rod and a cylindrical chuck body, wherein the pull rod and the chuck body are coaxially arranged, a plurality of inclined chutes which are peripherally distributed are arranged in the inner wall of the chuck body, a blocky chuck core is respectively arranged in each inclined chute, the end part of each chuck core away from the axis of the chuck body is fixedly connected with a chuck head which points to the axis of the chuck body, the side parts of all the chuck cores, which penetrate out of the inclined chutes and are close to the axis of the chuck body, are connected with the inner end of the pull rod positioned in chuck body through a connection structure, and the outer end of the pull rod extends out of the chuck body and is connected with a drive mechanism which can drive the pull rod to axially move. The lathe chuck can quickly clamp or loosen a workpiece, and the clamping effect is good.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to the anchor clamps that are used for holding workpiece on a kind of lathe, particularly a kind of machine chuck.
Background technology
Chuck generally is made up of chuck body, movable jaw and claw driving mechanism, and the movable jaw that the claw drive mechanism is distributed on the chuck body moves radially, with the workpiece clamping and positioning.From the pawl number of movable jaw, chuck can be divided into: two-jaw(ed)chuck, scroll chuck, chuck etc.At present, the bevel pinion that the claw driving mechanism of chuck is bevel gear wheel, equate with movable jaw quantity and be connected with movable jaw, there is flat thread at the back side of bevel gear wheel, the flat thread engagement of bevel pinion and bevel gear wheel, bevel gear wheel connects motor, the driven by motor bevel gear wheel rotates, the flat thread of bevel gear wheel make bevel pinion drive movable jaw simultaneously to the center of chuck body near or withdraw from, so just realized clamping or unclamping workpiece.But the complex structure of present this chuck is made inconvenience, and clamps or to unclamp the process of workpiece not rapid, has influenced working (machining) efficiency.
People have made various improvement at the problems referred to above to chuck, and some has also applied for patent, and for example the Chinese patent literature data discloses a kind of NC vertical lathe hydraulically operated fixture [application number: 201020247986.X; Granted publication number: CN201702408U], it comprises chuck body, chuck body is provided with radial groove, is slidingly installed on the radial groove by claw, and the middle part of chuck body is provided with cavity, cavity and radial groove link, the lower end of chuck body is connected with angling cylinder by mounting flange, the piston rod of angling cylinder straight up and be fixedly connected with pull bar, the top of pull bar extend in the cavity of chuck body, and be connected with incline link, the end of connecting rod is connected with the bottom of claw.Piston motion by angling cylinder drives moving up and down of pull bar, and pull bar drivening rod again moves up and down, because connecting rod inclination certain angle slides in radial groove thereby drive claw, realizes the clamping of workpiece or unclasps.
Though above-mentioned NC vertical lathe hydraulically operated fixture can be realized the quick clamping of claw or unclasp, but it relies on incline link very much, the processing request of connecting rod is very high, when accompanying drawing can find out that the pull bar drivening rod moves up and down, there is deformation in connecting rod, the service life of connecting rod is short, and the clamping or the process that unclasps that realize claw in the above-mentioned patent are to move up and down by the pull bar drivening rod, driving claw by connecting rod again radially slides to realize the clamping of workpiece or to unclasp, the adjustment process of claw exists connecting rod to drive this intermediate link, adjustment process is not direct, again because the rigging error that the connecting rod assembling exists, can cause the bad of claw, influence the machining accuracy of workpiece neutrality.
Summary of the invention
The purpose of this utility model is at the above-mentioned problems in the prior art, and a kind of simple and compact for structure and machine chuck that the clamping precision is high is provided.
The purpose of this utility model can realize by following technical proposal: a kind of machine chuck, comprise pull bar, tubular chuck body, described pull bar and the coaxial setting of chuck body, it is characterized in that, be provided with the tip chute that several circumferentially distribute in the inwall of described chuck body, all has block pawl core in each tip chute, each pawl core all is fixed with the pawl head that points to the chuck body axle center away from the end in chuck body axle center, each pawl core passes tip chute and all is connected by syndeton with the inner that described pull bar is positioned at chuck body near the sidepiece in chuck body axle center, and the outer end of described pull bar is stretched out chuck body and this outer end and can be driven the axially movable driving mechanism of pull bar and be connected.
This machine chuck in use, driving mechanism drives pull bar and moves axially to the direction that withdraws from chuck body, the inner of pull bar drives each pawl core and tighten up moving in the chuck body axle center in tip chute, each pawl head moves with the pawl core and tightens up to the chuck body axle center, so just, realized of the clamping of pawl head to workpiece, the clamping pilot process is few, clamping is quick rapidly, improved working (machining) efficiency, and because tip chute has guide effect, each pawl core moves in tip chute, and the pawl core is kept strokes, the pawl head is good to neutrality, clamping precision height.After the workpiece processing, driving mechanism drives the direction of pull bar in going deep into chuck body and moves axially, and it is the center to the moving of external diffusion with the chuck body axle center in tip chute that the inner of pull bar drives each pawl core, and the pawl head opens, realized that it is quick equally to unclasp workpiece to the unclasping of workpiece.
In above-mentioned machine chuck, described syndeton comprise each pawl core pass tip chute and near the sidepiece in chuck body axle center all have radially in the draw-in groove in chuck body axle center, the inner of pull bar has the projection that is positioned at each draw-in groove.Being engaged in of projection and draw-in groove radially has surplus, and when driving mechanism drive pull bar moved axially, the surplus of projection and draw-in groove reduced or increases, and what the inner drive pawl core of pull bar tightened up in tip chute or spread moves.
In above-mentioned machine chuck, described tip chute circumferentially evenly distributes on chuck body.The claw that is arranged in tip chute also is circumferentially equally distributed, and claw is good to neutrality like this, good clamping effect.
In above-mentioned machine chuck, described pawl head is connected mutually by the end of bolt with the pawl core.Bolt is parallel to the chuck body axle center and passes the pawl head and go deep into the pawl core, has realized being connected of pawl head and pawl core like this.During use, choose the specification of required pawl head, need not to change whole chuck according to the workpiece size size, convenient to operation, and when damaging appears in the pawl head, take out bolt, and can change the pawl head, it is comparatively convenient to change the pawl head.
In above-mentioned machine chuck, the end of described chuck body is fixed with locating piece, and described pull bar passes the locating piece radial location.Locating piece stops the radial-play of pull bar, make pull bar move axially steadily, and locating piece can prevent that chip from entering into the inner of pull bar, makes pull bar move axially smoothly.
In above-mentioned machine chuck, the end of described chuck body has locating slot, and described locating piece is fixed in the described locating slot by sunk screw.Locating piece is positioned at the end of chuck body like this, not lofty, good looking appearance, and when transportation or assembling, can not collide locating piece, guaranteed the positioning accuracy of locating piece.
In above-mentioned machine chuck, described driving mechanism is cylinder or angling cylinder, and the outer end of the piston rod of described cylinder or the piston rod of angling cylinder and pull bar is connected.
In above-mentioned machine chuck, the piston rod of described cylinder or the piston rod of angling cylinder are threaded with the outer end of pull bar.The loading and unloading of cylinder or angling cylinder and pull bar are all comparatively convenient like this.
Compared with prior art, a kind of machine chuck of providing of the utility model has the following advantages:
1, this machine chuck can make the quick clamping of pawl head or unclasp workpiece by the setting of tip chute, syndeton, has improved working (machining) efficiency.
2, this machine chuck medium dip chute has guide effect, and each pawl core moves in tip chute, and the pawl core is kept strokes, and the pawl head is good to neutrality, clamping precision height
3, the pawl head in this machine chuck is connected mutually by the end of bolt with the pawl core, and it is convenient and swift to choose, change the pawl head.
4, the setting of locating piece makes the axially movable good stability of pull bar in this machine chuck.
Description of drawings
Fig. 1 is the structure cutaway view of this machine chuck.
Fig. 2 is the structure cutaway view of another angle of chuck body in this machine chuck, locating piece and pull bar.
Among the figure, 1, pull bar; 1a, projection; 2, chuck body; 3, tip chute; 4, pawl core; 4a, draw-in groove; 5, pawl head; 6, bolt; 7, locating piece; 8, sunk screw; 9, angling cylinder.
The specific embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
This machine chuck is made up of parts such as pull bar 1, chuck body 2, pawl core 4 and pawl heads 5, is used for holding workpiece.
Specifically, as shown in Figure 1, pull bar 1 and chuck body 2 coaxial settings, chuck body 2 is tubular, is provided with several circumferential equally distributed tip chutes 3 in the inwall of chuck body 2, and the quantity of present embodiment medium dip chute 3 is three.All has block pawl core 4 in each tip chute 3, each pawl core 4 all is fixed with the pawl head 5 that points to chuck body 2 axle center by bolt 6 away from the end in chuck body 2 axle center, bolt 6 is parallel to chuck body 2 axle center and passes pawl head 5 and go deep into pawl core 4, realized being connected of pawl head 5 and pawl core 4 like this.Each pawl core 4 passes tip chute 3 and all is connected by syndeton with the inner that pull bar 1 is positioned at chuck body 2 near the sidepiece in chuck body 2 axle center, syndeton comprise each pawl core 4 pass tip chute 3 and near the sidepiece in chuck body 2 axle center all have radially in the draw-in groove 4a in chuck body 2 axle center, the inner of pull bar 1 has the projection 1a that is positioned at each draw-in groove 4a.For the radial-play that stops pull bar 1 with prevent that chip from entering into the place, the inner of pull bar 1, as depicted in figs. 1 and 2, the end of chuck body 2 has locating slot, is fixed with locating piece 7 by sunk screw 8 in the locating slot, and pull bar 1 passes locating piece 7 radial locations.
The outer end of pull bar 1 is stretched out chuck body 2 and this outer end and can be driven pull bar 1 axially movable driving mechanism and be connected.Driving mechanism is an angling cylinder 9 in the present embodiment, and the end of the piston rod of angling cylinder 9 has screwed hole, and the outer end of pull bar 1 has external screw thread, and the piston rod of angling cylinder 9 is threaded with the outer end of pull bar 1 like this, and is easy to loading and unloading.
This machine chuck is chosen the specification of required pawl head 5 according to the workpiece size size in use, pawl head 5 is connected in the end of pawl core 4 by bolt 6.The piston rod of angling cylinder 9 drives pull bar 1 and moves axially to the direction that withdraws from chuck body 2, the draw-in groove 4a radial slack of projection 1a of pull bar 1 the inner and pawl core 4 reduces, pawl core 4 tightens up moving in chuck body 2 axle center in tip chute 3, each pawl head 5 moving and tightening up to chuck body 2 axle center with pawl core 4, so just, realized the clamping of 5 pairs of workpiece of pawl head, clamping intermediate link is few, and clamping is quick rapidly.After the workpiece processing, the piston rod of angling cylinder 9 drives the direction of pull bar 1 in going deep into chuck body 2 and moves axially, the draw-in groove 4a radial slack of projection 1a of pull bar 1 the inner and pawl core 4 increases, pawl core 4 in tip chute 3 with chuck body 2 axle center the moving that be the center to external diffusion, pawl head 5 opens, realized that it is quick equally to unclasp workpiece to the unclasping of workpiece.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as pull bar 1, projection 1a, chuck body 2, tip chute 3, pawl core 4, draw-in groove 4a, pawl head 5, bolt 6, locating piece 7, sunk screw 8, angling cylinder 9 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (8)
1. machine chuck, comprise pull bar (1), tubular chuck body (2), described pull bar (1) and the coaxial setting of chuck body (2), it is characterized in that, be provided with the tip chute (3) that several circumferentially distribute in the inwall of described chuck body (2), all has block pawl core (4) in each tip chute (3), each pawl core (4) all is fixed with the pawl head (5) that points to chuck body (2) axle center away from the end in chuck body (2) axle center, each pawl core (4) passes tip chute (3) and all is connected by syndeton with the inner that described pull bar (1) is positioned at chuck body (2) near the sidepiece in chuck body (2) axle center, and the outer end of described pull bar (1) is stretched out chuck body (2) and this outer end and can be driven the axially movable driving mechanism of pull bar (1) and be connected.
2. machine chuck according to claim 1, it is characterized in that, described syndeton comprise each pawl core (4) pass tip chute (3) and near the sidepiece in chuck body (2) axle center all have radially in the draw-in groove (4a) in chuck body (2) axle center, the inner of pull bar (1) has the projection (1a) that is positioned at each draw-in groove (4a).
3. machine chuck according to claim 2 is characterized in that, described tip chute (3) is gone up circumferentially at chuck body (2) and evenly distributed.
4. machine chuck according to claim 1 and 2 is characterized in that, described pawl head (5) is connected mutually by the end of bolt (6) with pawl core (4).
5. according to claim 1 or 2 or 3 described machine chucks, it is characterized in that the end of described chuck body (2) is fixed with locating piece (7), described pull bar (1) passes locating piece (7) radial location.
6. machine chuck according to claim 5 is characterized in that, the end of described chuck body (2) has locating slot, and described locating piece (7) is fixed in the described locating slot by sunk screw (8).
7. machine chuck according to claim 1 is characterized in that, described driving mechanism is cylinder or angling cylinder (9), and the outer end of the piston rod of the piston rod of described cylinder or angling cylinder (9) and pull bar (1) is connected.
8. machine chuck according to claim 7 is characterized in that, the piston rod of the piston rod of described cylinder or angling cylinder (9) is threaded with the outer end of pull bar (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200513606U CN202021355U (en) | 2011-03-01 | 2011-03-01 | Lathe chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200513606U CN202021355U (en) | 2011-03-01 | 2011-03-01 | Lathe chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202021355U true CN202021355U (en) | 2011-11-02 |
Family
ID=44846325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200513606U Expired - Fee Related CN202021355U (en) | 2011-03-01 | 2011-03-01 | Lathe chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202021355U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601404A (en) * | 2012-03-23 | 2012-07-25 | 湖南天雁机械有限责任公司 | Automatic centering quick-clamping device |
| CN102689025A (en) * | 2012-06-06 | 2012-09-26 | 台州屹捷数控机床有限公司 | Special main shaft box of lathe |
| CN102699701A (en) * | 2012-06-04 | 2012-10-03 | 扬州诚德钢管有限公司 | Self-centering clamping device for hydraulic tubular column component |
| CN103273102A (en) * | 2013-06-19 | 2013-09-04 | 黄石鑫华轮毂有限公司 | Automobile hub drawing machine |
| CN104227057A (en) * | 2014-09-02 | 2014-12-24 | 大连瓦轴金舟机械有限公司 | Numerical control lathe clamp |
| CN105234698A (en) * | 2015-11-16 | 2016-01-13 | 重庆胜利工业（集团）有限公司 | Fast loading/unloading clamp of milling machine and milling machine |
| CN106014295A (en) * | 2016-07-06 | 2016-10-12 | 福建省正丰信息技术发展有限公司 | Mechanical control orifice clamper |
| CN110434363A (en) * | 2019-09-20 | 2019-11-12 | 咸阳圣亚机电设备有限公司 | End face positions workpiece holding structure and detection method |
| CN114043404A (en) * | 2021-11-19 | 2022-02-15 | 北京星航机电装备有限公司 | Self-centering serial rapid assembly fixture for rotary cabin parts |
-
2011
- 2011-03-01 CN CN2011200513606U patent/CN202021355U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601404B (en) * | 2012-03-23 | 2016-03-30 | 湖南天雁机械有限责任公司 | A kind of self-centering fast fixture |
| CN102601404A (en) * | 2012-03-23 | 2012-07-25 | 湖南天雁机械有限责任公司 | Automatic centering quick-clamping device |
| CN102699701A (en) * | 2012-06-04 | 2012-10-03 | 扬州诚德钢管有限公司 | Self-centering clamping device for hydraulic tubular column component |
| CN102689025A (en) * | 2012-06-06 | 2012-09-26 | 台州屹捷数控机床有限公司 | Special main shaft box of lathe |
| CN102689025B (en) * | 2012-06-06 | 2015-05-27 | 台州屹捷数控机床有限公司 | Special main shaft box of lathe |
| CN103273102A (en) * | 2013-06-19 | 2013-09-04 | 黄石鑫华轮毂有限公司 | Automobile hub drawing machine |
| CN104227057A (en) * | 2014-09-02 | 2014-12-24 | 大连瓦轴金舟机械有限公司 | Numerical control lathe clamp |
| CN105234698A (en) * | 2015-11-16 | 2016-01-13 | 重庆胜利工业（集团）有限公司 | Fast loading/unloading clamp of milling machine and milling machine |
| CN105234698B (en) * | 2015-11-16 | 2018-01-12 | 重庆胜利工业（集团）有限公司 | A kind of milling machine quick despatch fixture and milling machine |
| CN106014295A (en) * | 2016-07-06 | 2016-10-12 | 福建省正丰信息技术发展有限公司 | Mechanical control orifice clamper |
| CN106014295B (en) * | 2016-07-06 | 2018-08-28 | 福建省正丰信息技术发展有限公司 | A kind of aperture clamper of Mechanical course |
| CN110434363A (en) * | 2019-09-20 | 2019-11-12 | 咸阳圣亚机电设备有限公司 | End face positions workpiece holding structure and detection method |
| CN114043404A (en) * | 2021-11-19 | 2022-02-15 | 北京星航机电装备有限公司 | Self-centering serial rapid assembly fixture for rotary cabin parts |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202021355U (en) | Lathe chuck | |
| CN202097409U (en) | No-stop self-centering clamping chunk used for processing slender shaft part | |
| CN103624283A (en) | Automatic chuck clamping device | |
| CN208451371U (en) | A kind of adjustable clamp | |
| CN108746694A (en) | Workpiece boring Fast clamping device | |
| CN110052872B (en) | Indexing milling machine fixture and using method thereof | |
| CN201613374U (en) | Transport rod type self-centering chuck | |
| CN204182952U (en) | The Hydraulic Pressure Clamping System of collet and chuck can be convenient for changing | |
| CN103077918A (en) | Ejector pin device of die grading equipment | |
| CN202292139U (en) | Three-pawl positioning clamp | |
| CN206500907U (en) | A kind of single direction rotation clamp system | |
| CN208196442U (en) | A kind of grinding machine Self adapting fixture for processing thin-wall workpiece | |
| CN201848709U (en) | Clamp used for clamping quadrangular prism workpiece | |
| CN103433787A (en) | Dual taper automatic centring device | |
| CN102837205A (en) | Hydraulic self-centering inner cavity tensioning mechanism | |
| CN110625201A (en) | Shaft gear shaping clamp | |
| CN208163159U (en) | One kind being suitable for the rotatable column device clamp of more sizes | |
| CN207592788U (en) | A kind of crank fixture | |
| CN109226787A (en) | A kind of novel numerical control cutting off machine | |
| JP2010142882A (en) | Fastening device | |
| CN208195707U (en) | Aperture internal expanding fixture | |
| CN201249280Y (en) | Self-centering chuck | |
| CN104128863B (en) | Valve-face special purpose grinder | |
| CN203134771U (en) | Lifting pin device for chip sorting device | |
| CN102528108A (en) | Three-jaw and four-jaw combined chuck |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20140301 |