CN108097992A - A kind of lathe spring chuck device - Google Patents
A kind of lathe spring chuck device Download PDFInfo
- Publication number
- CN108097992A CN108097992A CN201711370959.4A CN201711370959A CN108097992A CN 108097992 A CN108097992 A CN 108097992A CN 201711370959 A CN201711370959 A CN 201711370959A CN 108097992 A CN108097992 A CN 108097992A
- Authority
- CN
- China
- Prior art keywords
- bearing
- shifting block
- main shaft
- lathe
- sliding sleeve
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/20—Longitudinally-split sleeves, e.g. collet chucks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2231/00—Details of chucks, toolholder shanks or tool shanks
- B23B2231/20—Collet chucks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The invention discloses a kind of lathe spring chuck devices, including main shaft and the pull rod being arranged in the main shaft, one end of the pull rod is connected with collet, the other end extends the main shaft and is connected with pawl seat, the main shaft is equipped with so that the sliding sleeve that the clamping jaw in the pawl seat is opened or shunk, the sliding sleeve periphery is equipped with bearing, shifting block is arranged on the outside of the bearing, the shifting block is placed on shift fork, and the shifting block is connected to the driving mechanism of a radial motion for interlocking or departing from the bearing for the shifting block to be driven to make.By setting shifting block that can make the driving mechanism for the radial motion for interlocking or departing from bearing, so that after the completion of shifting block fastening bearing drives movement so as to collet action, it can depart from bearing, thus avoid generating heat and vibrating caused by shifting block and bearing friction during the rotation of main shaft, it may insure the normal operation of lathe, especially speed lathe, ensure that lathe precision and processing precision of products are unaffected.
Description
Technical field
The invention belongs to lathe fields, and in particular to a kind of lathe spring chuck device.
Background technology
Existing economical lathe, most all by the way of the clamping of sliding sleeve mobile spring collet, this apparatus structure letter
It is single, easy to loading and unloading and at low cost.This collet clamping device, clamping and release are all connected by pull rod and realized, pull rod
Connect pawl seat, equipped with three claws in pawl seat, be distributed on pawl seat circumference, by be mounted on main shaft with taper sliding sleeve before and after
It is mobile, claw is opened, shrinks that pull rod is driven to move back and forth, reaches collet clamping and release.
A kind of improved instrument lathe fastener, will clamp as disclosed in the Chinese patent of Application No. 02216066.3
The control mechanism of workpiece is placed in main spindle box, which includes the small sliding sleeve, the clamping jaw seat that are sleeved on main shaft, and folder is fixed on pivot pin
Clamping jaw in pawl seat and the big sliding sleeve being sleeved on clamping jaw seat, shift fork circle are fixed on big sliding sleeve, and bottom is screwed even
Bar, connecting rod two end frame pass through wherein one end stretching and are fixedly connected with handle in main spindle box, stir handle, it is possible to control
Big sliding sleeve moves left and right, so as to control the clamping of workpiece or release；For another example the China of Application No. 200510061059.2 is special
A kind of clamping apparatus for lathe disclosed in profit application, including main shaft, trombone slide and collet, collet and trombone slide are fixed together, loaded on master
In axis, collet is in the end of main shaft, and trombone slide stretches out the other end of main shaft, clamping jaw seat, clamping jaw are socketed in the extension of trombone slide
Bearing is socketed on seat, shift fork head is equipped on the outer ring of bearing, ripple plug is connected with the Handleset on headstock,
Pulling Handleset can be such that bearing is slided on clamping jaw seat, and bearing depresses the outer end of clamping jaw, and the inner end of clamping jaw is on clamping jaw seat
It rotates, and makes the direction of motion of trombone slide and the glide direction of bearing on the contrary, under the action of the cone structure of spindle nose, collet
Endoporus aperture shrink, so as to clamp workpiece.
Above-mentioned clamping device, after collet clamping, sliding sleeve can be rotated with bearing during main axis, and since shifting block begins
Can be slightly had therewith by clasping bearing eventually by small turn, and such bearing and shifting block can generate different degrees of friction, so as to cause generating heat, shaking
Dynamic, for lathe of the speed of mainshaft below 4000 revs/min, the influence to lathe and processing may be smaller, however for main shaft
Speed lathe of the rotating speed at 8000 revs/min or more, this structure heating is big, vibration is big, and the influence to processing is also just very big.
The content of the invention
It is an object of the present invention to provide a kind of lathe spring chuck device, the defects of solving in the prior art.
The present invention solves technical problem and adopts the following technical scheme that：
A kind of lathe spring chuck device, including main shaft and the pull rod being arranged in the main shaft, one end of the pull rod
Collet is connected with, the other end extends the main shaft and is connected with pawl seat, and the main shaft is equipped with so that in the pawl seat
The clamping jaw sliding sleeve that opens or shrink, the sliding sleeve periphery is equipped with bearing, shifting block, the shifting block is arranged on the outside of the bearing
Be placed on shift fork, which is characterized in that the shifting block be connected to one for drive the shifting block make to interlock with the bearing or
The driving mechanism of the radial motion of disengaging.
Optionally, one end of the shift fork is fixed as rotating fulcrum, and the other end is connected to by the of solenoid valve control
One cylinder, thus the first cylinder can be with shift fork around fulcrum rotation, so as to which shifting block be driven to move axially.
Optionally, the clamping jaw for three and is distributed on the pawl seat circumference so that sliding sleeve applies clamping jaw balanced
Power, improve clamping jaw action stability.
In the preferred embodiment of the invention, the driving mechanism is the second cylinder.
Compared with prior art, the advantage of the invention is that：By setting shifting block that can make to interlock or take off with bearing
From radial motion driving mechanism so that after the completion of shifting block fastening bearing drives the mobile action so as to collet, Ke Yiyu
Bearing departs from, and thus avoids being generated heat and being vibrated caused by shifting block and bearing friction during the rotation of main shaft, it can be ensured that vehicle
The normal operation of bed, especially speed lathe ensures that lathe precision and processing precision of products are unaffected.
Description of the drawings
Fig. 1 is the schematic diagram of the collet clamp system of the present invention；
Fig. 2 is the sectional view along A-A of Fig. 1；
Specific embodiment
The present invention is described in further detail below in conjunction with attached drawing embodiment.
Referring to Fig. 1 and Fig. 2, a kind of lathe spring chuck device, the clamp system is mounted on headstock 1, including being arranged on
Headstock 1 is stretched out at main shaft 2 on headstock 1 and the pull rod in main shaft 23, the both ends of main shaft 2.It is connected on one end of pull rod 3
There is collet 4, the part that the other end stretches out main shaft 2 is connected with a pawl seat 5, three clamping jaws 6 are housed in pawl seat 5, are distributed on pawl
On 5 circumference of seat, this one end of main shaft 2 is equipped with the sliding sleeve 7 with taper, towards 6 direction sliding sleeve of clamping jaw, 7 reduced diameter, leads to
Cross the back-and-forth motion of sliding sleeve 7 so that clamping jaw 6 opens or shrink that pull rod 3 is driven to move back and forth, so that 3 other end of connecting rod
Collet 4 (conical surface is set between the end of collet 4 and main shaft 2) clamping and release.Said structure is the prior art,
This is repeated no more, and can refer to the document referred in background technology.
7 periphery of sliding sleeve is equipped with journal bearing 8, and the outside of bearing 8 is equipped with shifting block 9, and shifting block 9 is symmetrically arranged two pieces, point
It is not installed on shift fork 10, with respect to 8 central symmetry of bearing, one end of shift fork 10 is fixed on 1 one side of headstock, dynamic as shift fork 10
Fulcrum when making, the other end are connected to the first cylinder 11 (thrust cylinder), and the first cylinder 11 is controlled by solenoid valve 13 into action
Make, shift fork 10 is connected with swing arm 13.Each shifting block 9 has been respectively coupled one second cylinder 12, in the present embodiment, preferably
For small cylinder, the action of small cylinder is controlled by magnet ring.
When needing moving sliding sleeve 7 (it is required that collet 4 is clamped or unclamped), the second cylinder 12 is acted, pushed away first
Dynamic shifting block 9 is radially orientated the movement of bearing 8 until clasping bearing 8, and then the first cylinder 11, which acts, causes shift fork 10 to be rotated around fulcrum,
So as to which shifting block 9 can make axial movement with dynamic bearing 8, thus sliding sleeve 7 is moved with the movement of bearing 8 so that collet 4
It clamps or unclamps；After the completion of the action of collet 4, before main shaft 2 starts rotation, again so that the second cylinder 12 acts, pull
Shifting block 9 is moved radially away from bearing 8 until departing from bearing 8 and resetting, when being rotated so as to main shaft 2 between shifting block 9 and bearing 8 not
Contact, without generating fever and oscillation phenomenon caused by the two friction, it is ensured that (especially main shaft turns speed lathe
Lathe of the speed at 10000 revs/min or more) it runs well, collet 4 clamps, it is convenient and reliable to unclamp, and lathe precision and product add
Work precision is unaffected.
In the above-described embodiments, the radial motion that shifting block 9 interlocks or departs from bearing 8 realized by cylinder drive, ability
Field technique personnel recognize that other driving mechanisms that shifting block 9 can be driven to make radial motion, such as motor can also be used.
The sequencing of above example only for ease of description, does not represent the quality of embodiment.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
To modify to the technical solution recorded in foregoing embodiments or carry out equivalent substitution to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical solution spirit and
Scope.
Claims (4)
1. a kind of lathe spring chuck device, including main shaft (2) and the pull rod (3) being arranged in the main shaft (2), the pull rod
(3) one end is connected with collet (4), and the other end extends the main shaft (2) and is connected with pawl seat (5), the main shaft (2)
It is equipped with so that the sliding sleeve (7) that the clamping jaw (6) on the pawl seat (5) is opened or shunk, sliding sleeve (7) periphery are equipped with bearing
(8), shifting block (9) is arranged on the outside of the bearing (8), the shifting block (9) is placed on shift fork (10), which is characterized in that described
Shifting block (9) is connected to the drive of a radial motion for interlocking or departing from the bearing (8) for the shifting block (9) to be driven to make
Motivation structure.
2. lathe spring chuck device as described in claim 1, which is characterized in that one end of the shift fork (10) is fixed and made
For rotating fulcrum, the other end is connected to the first cylinder (11) controlled by solenoid valve (13).
3. lathe spring chuck device as described in claim 1, which is characterized in that the clamping jaw (6) is for three and uniformly distributed
On the pawl seat (5) circumference.
4. lathe spring chuck device as described in claim 1, which is characterized in that the driving mechanism is the second cylinder
(12)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711370959.4A CN108097992A (en) | 2017-12-19 | 2017-12-19 | A kind of lathe spring chuck device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711370959.4A CN108097992A (en) | 2017-12-19 | 2017-12-19 | A kind of lathe spring chuck device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108097992A true CN108097992A (en) | 2018-06-01 |
Family
ID=62210028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711370959.4A Pending CN108097992A (en) | 2017-12-19 | 2017-12-19 | A kind of lathe spring chuck device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108097992A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112404959A (en) * | 2020-11-19 | 2021-02-26 | 长春一东离合器股份有限公司 | Clutch damping spring press-fitting device |
-
2017
- 2017-12-19 CN CN201711370959.4A patent/CN108097992A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112404959A (en) * | 2020-11-19 | 2021-02-26 | 长春一东离合器股份有限公司 | Clutch damping spring press-fitting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180601 |
|
| WD01 | Invention patent application deemed withdrawn after publication |