CN207223480U - A kind of key positioning elastic fixture - Google Patents
A kind of key positioning elastic fixture Download PDFInfo
- Publication number
- CN207223480U CN207223480U CN201721168867.3U CN201721168867U CN207223480U CN 207223480 U CN207223480 U CN 207223480U CN 201721168867 U CN201721168867 U CN 201721168867U CN 207223480 U CN207223480 U CN 207223480U
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- China
- Prior art keywords
- key
- workpiece
- collet
- mounting
- hole
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Abstract
The utility model proposes a kind of key positioning elastic fixture, position error is larger during solving the problems, such as to process eccentric element in the prior art, including workpiece and machine tool chief axis ring flange, transition disc is provided with machine tool chief axis ring flange, mounting is provided with transition disc, locating ring is connected with the base of mounting, collet is connected with the male cone (strobilus masculinus) of mounting, the outside of collet is provided with workpiece, the workpiece is provided centrally with front tension bar, the left side of the medial surface contact spring collet on front tension bar head, the right end connection back stay of front tension bar；The left end of the utility model collet has been uniformly arranged open slot at six, when collet moves right on the left of six valve structure spreadings, prevent workpiece processing when beat；It is moved to the left after machining, six valve structures closure, conveniently removes workpiece.
Description
Technical field
Technical field of mechanical processing is the utility model is related to, particularly relates to a kind of key positioning elastic fixture.
Background technology
It is well known that the processing for eccentric element of some endoporus with keyway, such as rotary arm bearing, often require that keyway
Relative positional accuracy between offset, and traditional processing method is to use eccentric mandrel clamping workpiece endoporus, and pass through
The flat key being arranged on eccentric mandrel is engaged with the keyway of inner hole of workpiece, is processed by the way of end face compresses, so
Have two defects, as soon as the cooperation of key and keyway must be clearance fit, otherwise can not workpiece loading and unloading, so necessarily bring compared with
Big position error, second, also must be clearance fit for the cooperation of workpiece hole easy to loading and unloading and mandrel, likewise suffers from
Larger position error, this programme design a kind of key positioning elastic fixture and solve the above problem.
The content of the invention
The utility model proposes a kind of key positioning elastic fixture, solves positioning when processing eccentric element in the prior art and misses
The problem of difference is larger.
What the technical solution of the utility model was realized in：
A kind of key positioning elastic fixture, including workpiece and machine tool chief axis ring flange, were provided with machine tool chief axis ring flange
Disk is crossed, mounting is provided with transition disc, locating ring is connected with the base of mounting, spring clip is connected with the male cone (strobilus masculinus) of mounting
Head, the outside of collet are provided with workpiece, and the workpiece is provided centrally with front tension bar, the medial surface contact on front tension bar head
The left side of collet, the right end connection back stay of front tension bar.
Mounting hole II and mounting hole III have been uniformly arranged on the base of the mounting, fluted, institute is uniformly arranged on mounting
State and mounting hole I has been uniformly arranged on the base of locating ring, connection bolt, the spring are provided with mounting hole I and mounting hole III
The right end of collet has been uniformly arranged boss, and boss stretches into groove, and spring II is provided between boss and groove.
The left side of the locating ring and the right side contact of workpiece, the left end of locating ring are provided with rectangular channel, rectangular channel
Bottom be provided with wire hole at two, keyway is provided with the workpiece, key locating piece is provided with keyway, key locating piece includes key
Locating bodies and ball pocket pressing plate, key locating bodies and ball pocket pressing plate are connected by two screws, and the right end of key locating bodies is set
There are unthreaded hole at two, screw bolt passes unthreaded hole and wire hole connecting key locating piece and locating ring, blind hole be provided with key locating bodies,
Spring I is provided with blind hole, ball pocket pressing plate is provided centrally with ball pocket hole, and steel ball, the both ends point of spring I are provided with ball pocket hole
Not Lian Jie steel ball and blind hole bottom.
The height of the key locating piece is less than the depth of keyway, and the width of the key locating piece is more than the width of keyway.
The left end of the collet has been uniformly arranged open slot at six.
The back stay is connected with the piston rod of clamping cylinder.
The head of the screw is not higher by the end face of ball pocket pressing plate.
The mounting hole II that the utility model is first passed through on mounting adjusts the processing offset of itself and transition disc, then installs positioning
Ring is simultaneously adjusted so that rectangular channel is perpendicular to offset direction；Bolt is penetrated to unthreaded hole and wire hole successively again to be fixed on key locating piece
On locating ring, and fine setting makes key locating piece be in and the perpendicular position of offset when penetrating bolt；Workpiece is sleeved at this time
On collet, and workpiece is moved to right so that key locating piece enters the keyway of workpiece, the width of key locating piece is more than the width of keyway
Degree, therefore the right flank of an end face of key locating piece and keyway is in close contact under the action of spring I, the vertex of steel ball also and
The left surface contact of keyway, realizes the purpose that workpiece keyway carries out gapless positioning；The right side of workpiece and a left side for locating ring
End contact, opens clamping cylinder, and piston rod drives back stay that front tension bar is moved right, and drives collet along outside mounting
The conical surface moves, and the left end of collet has been uniformly arranged open slot at six, in the process the left end spreading of collet, with work
Part endoporus is in close contact, and carries out machining to workpiece at this time；The commutation threshold switch of lathe is opened after completion of processing, makes clamping oily
The piston rod of cylinder drives front tension bar to be moved to the left, and collet recovers to original state again under the action of spring II, removes
Workpiece to be machined；Workpiece removes rear steel ball and upsprings under the action of spring I so that the width of key locating piece is still more than keyway
Width, positions it when conveniently loading onto workpiece again.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the front view of the utility model mounting；
Fig. 3 is the left view of the utility model mounting；
Fig. 4 is the front view of the utility model locating ring；
Fig. 5 is the left view of the utility model locating ring；
Fig. 6 is the partial enlarged view I of Fig. 5；
Fig. 7 is the front view of the utility model key locating piece；
Fig. 8 is the top view of the utility model key locating piece；
Fig. 9 is the front view of the utility model collet；
Figure 10 is the left view of the utility model collet；
Figure 11 is the right view of the utility model collet；
Figure 12 is A-A sectional views of Fig. 1.
In figure：1st, workpiece 2, front tension bar 3, collet 4, keyway 5, screw 6, key locating bodies 7, bullet
Spring I 8, ball pocket hole 11, spring II 14, transition disc 16, machine tool chief axis ring flange 17, mounting 18, locating ring
19th, mounting hole I 20, rectangular channel 21, wire hole 22, steel ball 23, ball pocket pressing plate 24, unthreaded hole 28, mounting hole II
29th, mounting hole III 30, groove 31, boss 32, open slot.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of making the creative labor
All other embodiments obtained, shall fall within the protection scope of the present invention.
Embodiment
As shown in Fig. 1-12, the utility model embodiment provides a kind of key positioning elastic fixture, including workpiece 1 and machine
Bed spindle flange disk 16, is provided with transition disc 14 on machine tool chief axis ring flange 16, mounting 17, mounting 17 is provided with transition disc 14
Base on be connected with locating ring 18, collet 3 is connected with the male cone (strobilus masculinus) of mounting 17, the outside of collet 3 is provided with
Workpiece 1, the workpiece 1 are provided centrally with front tension bar 2, the left side of the medial surface contact spring collet 3 on 2 head of front tension bar,
The right end connection back stay of front tension bar 2.
Mounting hole II28 and mounting hole III29 have been uniformly arranged on the base of the mounting 17, has been uniformly arranged on mounting 17
Fluted 30, it has been uniformly arranged on the base of the locating ring 18 in mounting hole I19, mounting hole I19 and mounting hole III29 and has set
There is connection bolt, the right end of the collet 3 has been uniformly arranged boss 31, and boss 31 stretches into groove 30, boss 31 and groove
Spring II11 is provided between 30.
The left side of the locating ring 18 and the right side contact of workpiece 1, the left end of locating ring 18 are provided with rectangular channel 20,
The bottom of rectangular channel 20 is provided with wire hole 21 at two, and keyway 4 is provided with the workpiece 1, key locating piece is provided with keyway 4,
Key locating piece includes key locating bodies 6 and ball pocket pressing plate 23, and key locating bodies 6 and ball pocket pressing plate 23 are connected by two screws 5,
The right end of key locating bodies 6 is provided with unthreaded hole 24 at two, screw bolt passes unthreaded hole 24 and 21 connecting key locating piece 6 of wire hole and determines
Position ring 18, is provided with blind hole in key locating bodies 6, spring I7 is provided with blind hole, ball pocket pressing plate 23 is provided centrally with ball pocket
Hole 8, is provided with steel ball 22 in ball pocket hole 8, the both ends of spring I7 connect the bottom of steel ball 22 and blind hole respectively.
The height of the key locating piece is less than the depth of keyway 4, and the width of the key locating piece is more than the width of keyway 4.
The left end of the collet 3 has been uniformly arranged open slot 32 at six.
The back stay is connected with the piston rod of clamping cylinder.
The head of the screw 5 is not higher by the end face of ball pocket pressing plate 23.
The left end of the utility model collet 3 has been uniformly arranged open slot 32 at six, left when collet 3 moves right
Six valve structure spreadings of side, prevent workpiece 1 from beating in processing；It is moved to the left after machining, six valve structures closure, conveniently takes
Lower workpiece 1.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on, should be included in the utility model
Protection domain within.
Claims (6)
- A kind of 1. key positioning elastic fixture, it is characterised in that：Including workpiece（1）With machine tool chief axis ring flange（16）, machine tool chief axis Ring flange（16）On be provided with transition disc（14）, transition disc（14）On be provided with mounting（17）, mounting（17）Base on connect There is locating ring（18）, mounting（17）Male cone (strobilus masculinus) on be connected with collet（3）, collet（3）Outside be provided with workpiece （1）, the workpiece（1）Be provided centrally with front tension bar（2）, front tension bar（2）The medial surface contact spring collet on head（3）A left side End face, front tension bar（2）Right end connection back stay, the locating ring（18）Left side and workpiece（1）Right side contact, it is fixed Position ring（18）Left end be provided with rectangular channel（20）, rectangular channel（20）Bottom be provided with wire hole at two（21）, the workpiece（1） Inside it is provided with keyway（4）, keyway（4）Key locating piece is inside provided with, key locating piece includes key locating bodies（6）With ball pocket pressing plate （23）, key locating bodies（6）With ball pocket pressing plate（23）Pass through two screws（5）Connection, key locating bodies（6）Right end be provided with Unthreaded hole at two（24）, screw bolt passes unthreaded hole（24）And wire hole（21）Connecting key locating bodies（6）And locating ring（18）, key is fixed Position body（6）Blind hole is inside provided with, spring I is provided with blind hole（7）, ball pocket pressing plate（23）Be provided centrally with ball pocket hole（8）, Ball pocket hole（8）Inside it is provided with steel ball（22）, spring I（7）Both ends connect steel ball respectively（22）With the bottom of blind hole.
- A kind of 2. key positioning elastic fixture according to claim 1, it is characterised in that：The mounting（17）Base on Cloth is provided with mounting hole II（28）With mounting hole III（29）, mounting（17）On be uniformly arranged it is fluted（30）, the locating ring （18）Base on be uniformly arranged mounting hole I（19）, mounting hole I（19）With mounting hole III（29）Connection bolt is inside provided with, The collet（3）Right end be uniformly arranged boss（31）, boss（31）Stretch into groove（30）, boss（31）And groove （30）Between be provided with spring II（11）.
- A kind of 3. key positioning elastic fixture according to claim 1, it is characterised in that：The height of the key locating piece is less than Keyway（4）Depth, the width of the key locating piece is more than keyway（4）Width.
- A kind of 4. key positioning elastic fixture according to claim 1, it is characterised in that：The collet（3）Left end It has been uniformly arranged open slot at six（32）.
- A kind of 5. key positioning elastic fixture according to claim 1, it is characterised in that：The back stay is connected with clamping oil The piston rod of cylinder.
- A kind of 6. key positioning elastic fixture according to claim 1, it is characterised in that：The screw（5）Head it is not high Go out ball pocket pressing plate（23）End face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721168867.3U CN207223480U (en) | 2017-09-13 | 2017-09-13 | A kind of key positioning elastic fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721168867.3U CN207223480U (en) | 2017-09-13 | 2017-09-13 | A kind of key positioning elastic fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207223480U true CN207223480U (en) | 2018-04-13 |
Family
ID=61861769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721168867.3U Expired - Fee Related CN207223480U (en) | 2017-09-13 | 2017-09-13 | A kind of key positioning elastic fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207223480U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114536067A (en) * | 2022-02-25 | 2022-05-27 | 常州机电职业技术学院 | Special expandable mandrel finish turning clamp for eccentric sleeve |
-
2017
- 2017-09-13 CN CN201721168867.3U patent/CN207223480U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114536067A (en) * | 2022-02-25 | 2022-05-27 | 常州机电职业技术学院 | Special expandable mandrel finish turning clamp for eccentric sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 451191 No. 1 Huaihe Road, Shuang Hu Economic and Technological Development Zone, Xinzheng, Zhengzhou, Henan Patentee after: Zhongyuan University of Technology Address before: 451191 No. 1 Huaihe Road, Shuanghu Town Economic and Technological Development Zone, Zhengzhou City, Henan Province Patentee before: Zhongyuan University of Technology |
|
| CP02 | Change in the address of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180413 Termination date: 20180913 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |