CN104001952B - Centrifugal three-jaw self-centering chuck - Google Patents

Centrifugal three-jaw self-centering chuck Download PDF

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Publication number
CN104001952B
CN104001952B CN201410164636.XA CN201410164636A CN104001952B CN 104001952 B CN104001952 B CN 104001952B CN 201410164636 A CN201410164636 A CN 201410164636A CN 104001952 B CN104001952 B CN 104001952B
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China
Prior art keywords
disk
centrifugal
parcel
bearing pin
slide
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CN201410164636.XA
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Chinese (zh)
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CN104001952A (en
Inventor
曲昭新
杨春利
王俊义
吕书国
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.)
General Technology Group Dalian Machine Tool Co.,Ltd.
Original Assignee
DALIAN HUAGEN PRECISION MACHINE TOOL Co Ltd
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Priority to CN201410164636.XA priority Critical patent/CN104001952B/en
Publication of CN104001952A publication Critical patent/CN104001952A/en
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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
    • B23B31/14Chucks with simultaneously-acting jaws, whether or not also individually adjustable involving the use of centrifugal force

Abstract

Centrifugal three-jaw self-centering chuck, including disk body and the gland being fixedly connected on disk body side, gland connects and has pull bar, be provided with three equally distributed jaws in the another side of disk body;Centrifugal drive mechanism and the clamp system driving three jaws to move it is provided with inside disk body;Centrifugal drive mechanism includes connecting rod, and the inner termination of connecting rod is connected to the protruding end face inside disk body by pitman shaft, and the external end head of connecting rod is bonded by bearing pin and is connected to bearing pin, in one end of bearing pin equipped with centrifugal-block;Clamp system includes the parcel being sleeved in the projection inside disk body, is provided with opening on parcel, and the other end of bearing pin inserts in opening;The side of parcel is provided with the first flat thread, is provided with long mouth on disk body, is furnished with slide in long mouth, and slide one side is provided with the second flat thread matched with the first flat thread, and slide is fixing with jaw to be connected;One end of stage clip is fixed on inside disk body, and the other end of stage clip is pressed against on parcel.Simple in construction, time saving and energy saving, low cost.

Description

Centrifugal three-jaw self-centering chuck
Technical field
The present invention relates to a kind of chuck machining clamping workpiece, especially a kind of centrifugal three-jaw self-centering chuck.
Background technology
It is generally divided into two kinds: respectively: manual three-jaw self-centering chuck in existing parcel type three-jaw self-centering chuck;Electric three-jaw self-centering chuck.Existing two kinds of three-jaw self-centering chucks, although the advantage with self-centering clamping, but owing to the characteristic of self is determined, the most manual three-jaw self-centering chuck, the muscle power that operator to be consumed is the biggest, it is impossible to reduce the purpose of labor intensity;Electric three-jaw self-centering chuck in use, although having reached to reduce the purpose of labor intensity, but be intended to be equipped with corresponding actuating device and motor, structure is complicated, and cost is high.
For the problem in the presence of above-mentioned prior art, a kind of novel centrifugal three-jaw self-centering chuck of research design, thus the problem in the presence of overcoming prior art is the most necessary.
Summary of the invention
Present invention solves the technical problem that be to provide a kind of simple in construction, application time time saving and energy saving, without be equipped with drive motor, the centrifugal three-jaw self-centering chuck of low cost of manufacture, to overcome the deficiencies in the prior art.
The technical solution of the present invention is as follows: includes disk body and is fixedly connected on the gland of disk body side, and gland connects pull bar, is provided with three equally distributed jaws in the another side of disk body;Centrifugal drive mechanism and the clamp system driving three jaws to move it is provided with inside disk body;Described centrifugal drive mechanism includes connecting rod, and the inner termination of connecting rod is connected to the protruding end face inside disk body by pitman shaft, and the external end head of connecting rod is bonded by bearing pin and is connected to bearing pin, in one end of bearing pin equipped with centrifugal-block;Described clamp system includes the parcel being sleeved in the projection inside disk body, is provided with opening on parcel, in the opening described in other end insertion of described bearing pin;The side of parcel is provided with the first flat thread, is provided with long mouth on disk body, is furnished with slide in long mouth, and slide one side is provided with the second flat thread matched with the first flat thread, and described slide is fixing with described jaw to be connected;One end of stage clip is fixed on inside disk body, and the other end of stage clip is pressed against on described parcel.
Described centrifugal drive mechanism is three groups and is distributed uniformly and circumferentially;Between described slide and jaw, faying face is that comb-tooth-type engages each other and passes through jaw installation screw fastening;Three equally distributed collision blocks it are provided with in disk body.
The centrifugal three-jaw self-centering chuck of the present invention, it is connected on the main shaft of lathe by pull bar, when machine tool chief axis drives gland and disk body to rotate, owing to there is centrifugal-block inside by connecting rod connection, make bearing pin press to parcel, make parcel rotate relative to disk body, now the pressure of stage clip is overcome, slide in ordering about the long mouth on disk body of the slide with the second flat thread by the first flat thread simultaneously, drive three jaws to move simultaneously, reach clamp workpiece or unclamp the purpose of workpiece.Being clamped workpiece by the centrifugal chucking power formed, not only self-centering, order about jaw action the most voluntarily, overall structure is simple, it is not necessary to arranges special driving motor, reduces manufacturing cost, time saving and energy saving.
Accompanying drawing explanation
Fig. 1 is the structural representation of the specific embodiment of the invention, i.e. A-A cross-sectional schematic shown in Fig. 3;
Fig. 2 is that the right side shown in Fig. 1 regards schematic diagram;
Fig. 3 is the left view schematic diagram shown in Fig. 1;
Fig. 4 is the structural representation of the gland shown in Fig. 1;
Fig. 5 is the B-B cross-sectional schematic shown in Fig. 6;
Fig. 6 is the schematic rear view shown in Fig. 4;
Fig. 7 is the structural representation of the disk body shown in Fig. 1;
Fig. 8 is the C-C cross-sectional schematic shown in Fig. 9;
Fig. 9 is the left view schematic diagram shown in Fig. 8;
Figure 10 is the structural representation of the centrifugal-block shown in Fig. 1;
Figure 11 is the schematic top plan view shown in Figure 10;
Figure 12 is the structural representation of the connecting rod shown in Fig. 1;
Figure 13 is the E-E cross-sectional schematic shown in Figure 12;
Figure 14 is the structural representation of the bearing pin shown in Fig. 1;
Figure 15 is the schematic top plan view shown in Figure 14;
Figure 16 is the D-D cross-sectional schematic shown in Figure 14;
Figure 17 is the elevational schematic view shown in Figure 18;
Figure 18 is the structural representation of the jaw shown in Fig. 1;
Figure 19 is the schematic top plan view shown in Figure 18;
Figure 20 is the close-up schematic view at the M shown in Figure 18;
Figure 21 is the left view schematic diagram shown in Figure 18;
Figure 22 is the elevational schematic view shown in Figure 23;
Figure 23 is the structural representation of the slide shown in Fig. 1;
Figure 24 is the schematic top plan view shown in Figure 23;
Figure 25 is the left view schematic diagram shown in Figure 23;
Figure 26 is close-up schematic view at the N shown in Figure 23;
Figure 27 is the structural representation of the parcel shown in Fig. 1;
Figure 28 is the left view schematic diagram shown in Figure 27;
Figure 29 is the structural representation of the collision block shown in Fig. 1;
Figure 30 is the schematic top plan view shown in Figure 29.
Detailed description of the invention
As shown in Figure 1, 2, 3: 4 is disk body, 3 is the gland being fixedly connected on disk body 4 side by interior trip bolt 16 and outer trip bolt 22, and interior trip bolt 16 and outer trip bolt 22 are circumferentially uniformly distributed.Disk body 4 and gland 3 all have centre bore, in order to the insertion of shaft-like workpiece.Threaded on gland 3 have multiple the most equally distributed pull bar 1.It is connected with the main shaft of lathe by pull bar 1 during installation.Threaded on gland 3 have jackscrew 2, in order to dismounting.
Three equally distributed jaws 15 it are furnished with in the another side of disk body 4.
Centrifugal drive mechanism and the clamp system driving three jaws 15 to move it is provided with inside disk body 4.
Such as Fig. 1, shown in 4~16: centrifugal drive mechanism includes connecting rod 7, the inner termination of connecting rod 7 is connected to the end face of the projection 23 inside disk body 4 by pitman shaft 13, i.e. connecting rod 7 can rotate relative to pitman shaft 13, one end of pitman shaft 13 is inserted in the middle part of disk body 4 in the end-face hole of protruding 23, and the other end of pitman shaft 13 is in cantilever position.The external end head of connecting rod 7 is fixedly connected with on bearing pin 8 by bearing pin key 6, is installed with centrifugal-block 5 in one end of bearing pin 8 by bearing pin key 6.Above-mentioned centrifugal drive mechanism is three groups and is distributed uniformly and circumferentially.
Such as Fig. 1, shown in 17~28: clamp system includes the parcel 20 in the projection 23 that is sleeved on inside disk body 4, is provided with radial opening 24 on parcel 20.The other end of bearing pin 8 inserts in opening 24.The side of parcel 20 is machined with the first flat thread 25.Being provided with long mouth 26 on disk body 4, be furnished with slide 18 in long mouth 26, slide 18 can slide in long mouth 26.Slide 18 one side is machined with the second flat thread 27 matched with the first flat thread 25.Fixing between slide 18 with jaw 15 being connected, between slide 18 and jaw 15, faying face is that comb-tooth-type engages each other and passes through jaw installation screw 17 and fastens, and is furnished with jaw key 19 simultaneously.
One end of stage clip 12 is fixed on inside disk body 4 by pull-out piece spring screw 11, and the other end of stage clip 12 is pressed against on parcel 20.
As shown in Fig. 1,29,30: be provided with three equally distributed collision blocks 21 in disk body 4.
Such as Fig. 1, shown in 28: the periphery at parcel 20 is machined with a hole 29, and the periphery at disk body 4 is machined with stirs arcuate socket 28, and the outer sheath of disk body 4 is equipped with guard ring 9.
The centrifugal three-jaw self-centering chuck of the present invention, it is connected on the main shaft of lathe by pull bar 1, when machine tool chief axis drives gland 3 and disk body 4 to rotate, owing to there is centrifugal-block 5 inside by connecting rod 7 connection, bearing pin 8 is made to press to parcel 20, parcel 20 is made to rotate relative to disk body 4, now the pressure of stage clip 12 is overcome, slide in ordering about the long mouth 26 on disk body 4 of the slide 18 with the second flat thread 27 by the first flat thread 25 simultaneously, drive three jaws 15 to move simultaneously, reach clamp workpiece or unclamp the purpose of workpiece.Being clamped workpiece by the centrifugal chucking power formed, not only self-centering, order about jaw 15 action the most voluntarily, overall structure is simple, it is not necessary to arranges special driving motor, reduces manufacturing cost, time saving and energy saving.

Claims (2)

1. a centrifugal three-jaw self-centering chuck, including disk body (4) and the gland (3) that is fixedly connected on disk body (4) side, the upper connection of gland (3) has pull bar (1), is provided with three equally distributed jaws (15) in the another side of disk body (4);
It is characterized in that: be provided with centrifugal drive mechanism in disk body (4) inner side and drive the clamp system of three jaws (15) movement;
Described centrifugal drive mechanism includes connecting rod (7), the inner termination of connecting rod (7) is connected to the end face of the projection (23) of disk body (4) inner side by pitman shaft (13), the external end head of connecting rod (7) is connected by bearing pin key (6) has bearing pin (8), in one end of bearing pin (8) equipped with centrifugal-block (5);
Described clamp system includes the parcel (20) being sleeved in the projection (23) of disk body (4) inner side, is provided with opening (24) on parcel (20), in the opening (24) described in other end insertion of described bearing pin (8);The side of parcel (20) is provided with the first flat thread (25), disk body (4) is provided with long mouth (26), slide (18) it is furnished with in Chang Kou (26), slide (18) one side is provided with the second flat thread (27) matched with the first flat thread (25), and described slide (18) is fixing with described jaw (15) to be connected;
One end of stage clip (12) is fixed on disk body (4) inner side, and the other end of stage clip (12) is pressed against on described parcel (20).
Centrifugal three-jaw self-centering chuck the most according to claim 1, it is characterised in that: described centrifugal drive mechanism is three groups and is distributed uniformly and circumferentially;Between described slide (18) and jaw (15), faying face is that comb-tooth-type engages each other and passes through jaw installation screw (17) fastening;Three equally distributed collision blocks (21) it are provided with in disk body (4).
CN201410164636.XA 2014-04-23 2014-04-23 Centrifugal three-jaw self-centering chuck Active CN104001952B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410164636.XA CN104001952B (en) 2014-04-23 2014-04-23 Centrifugal three-jaw self-centering chuck

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410164636.XA CN104001952B (en) 2014-04-23 2014-04-23 Centrifugal three-jaw self-centering chuck

Publications (2)

Publication Number Publication Date
CN104001952A CN104001952A (en) 2014-08-27
CN104001952B true CN104001952B (en) 2017-01-04

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104772493B (en) * 2015-03-24 2017-02-01 浙江大学 External centrifugal force compensating mechanism for chuck
CN114226778A (en) * 2022-02-28 2022-03-25 科华控股股份有限公司 Self-centering chuck capable of laterally clamping and working method thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7804747U1 (en) * 1978-02-17 1978-06-15 Roehm, Guenter Horst, 7927 Sontheim CHUCK
US4314706A (en) * 1979-05-07 1982-02-09 Cushman Industries, Incorporated Chucks of constant jaw force
DE502008003281D1 (en) * 2007-04-27 2011-06-01 Moser Mechanik CENTER LINING FOR CENTERING MATERIAL RODS
CN201357239Y (en) * 2009-03-12 2009-12-09 吴淼东 Automatic clamping chuck
CN103056408B (en) * 2013-02-20 2014-12-03 江苏省宿迁市方圆机械有限公司 Three-jaw centrifugal force self-centering chuck
CN203875365U (en) * 2014-04-23 2014-10-15 大连华根精密机床有限公司 Centrifugal three-jaw self-centering chuck

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Denomination of invention: Centrifugal three-jaw self-centering chuck

Effective date of registration: 20170323

Granted publication date: 20170104

Pledgee: Zhongjiang International Trust Limited by Share Ltd

Pledgor: Dalian Huagen Precision Machine Tool Co., Ltd.

Registration number: 2017990000218

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Effective date of registration: 20210407

Address after: 116000 No.100 Liaohe East Road, economic and Technological Development Zone, Dalian City, Liaoning Province

Patentee after: General Technology Group Dalian Machine Tool Co.,Ltd.

Address before: No. 600, north section of Zhufeng street, Wafangdian City, Dalian City, Liaoning Province, 116000

Patentee before: DALIAN HUAGEN PRECISION MACHINE Co.,Ltd.