CN207205315U - A kind of lathe inner support aligning frock - Google Patents
A kind of lathe inner support aligning frock Download PDFInfo
- Publication number
- CN207205315U CN207205315U CN201721084014.1U CN201721084014U CN207205315U CN 207205315 U CN207205315 U CN 207205315U CN 201721084014 U CN201721084014 U CN 201721084014U CN 207205315 U CN207205315 U CN 207205315U
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- Prior art keywords
- tapered sleeve
- aligning
- internal supporting
- block
- workpiece
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Abstract
A kind of lathe inner support aligning frock, including tapered sleeve, circumferentially coordinate in the male cone (strobilus masculinus) of tapered sleeve and multiple internal supporting blocks are installed, be provided with the extension spring for being used for multiple internal supporting blocks being clamped on tapered sleeve in one end of internal supporting block, it is all provided with the outer peripheral face of each internal supporting block other end fluted, the bottom of groove is along tapered sleeve circumferentially in the low arc in the high middle part in both ends, aligning block is provided with by pivot pin of feeling relieved in groove, multiple aligning blocks are uniformly distributed along the periphery of tapered sleeve, the bottom surface of aligning block is consistent with bottom portion of groove shape, the top of aligning block is arranged with two fins along the circumferential both ends of tapered sleeve, the length direction of fin is parallel with the axis of tapered sleeve, and the surface of fin is the face of cylinder, the actuating unit for driving internal supporting block that workpiece is axially moved with stretching workpiece or unclamped along tapered sleeve is additionally provided with the inside of tapered sleeve.The concentric self-adjusting between itself mean center of clamping workpiece center and workpiece can be realized, simple in construction, aligning is accurate, can improve Workpiece Machining Accuracy.
Description
Technical field
Machining technology field is the utility model is related to, more particularly, to a kind of lathe inner support aligning frock.
Background technology
Model For The Bush-axle Type Parts machining inner support clamp used in the prior art（Or frock）Substantially it is divided into two classes：One kind is
It is unable to the inner support clamp of aligning, for example the spring perch of internal expansion type and justifies soft pawl internal diameter fixture from car, another is exactly can
The aligning fixture of automatic aligning, such as the hard claw clip tool of aligning, and Application No. 201220683817X utility model patent are public
A kind of aligning fixture for the clamping fine forge piece opened.
The fixture of aligning is unable to due to not having aligning function, so for the parts to be processed with internal diameter roundness defect not
It can be adjusted and make up, be deformed after easily causing Excircle machining, the problems such as inside and outside circle decentraction, thus thin-walled can not be adapted to
The processing of Model For The Bush-axle Type Parts uses, and causes restricted application.
In inner support aligning fixture of the prior art, wherein aligning hard claw clip tool, it is most prominent the shortcomings that be that machining accuracy is poor；
A kind of aligning clamp structure of clamping fine forge piece is more multiple disclosed in Application No. 201220683817X utility model patent
It is miscellaneous, and aligning fixture disclosed in the patent simply can carry out aligning in itself to fixture, and it can not adjust workpiece and fixture
Between it is concentric（In the prior art, concentric between fixture and machine tool chief axis is easily realized, therefore, as long as ensureing workpiece
It is concentric between mean center and fixture, you can realize it is concentric between workpiece mean center and machine tool chief axis, so as to improve work
Part machining accuracy）, thus, when it can not solve workpiece to be processed and has the defects of out-of-roundness in itself, the part processed holds
Easily there is became uneven, the problem of influenceing the machining accuracy of part.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of lathe inner support aligning frock, can adjust work
It is concentric between part and fixture, so as to improve the machining accuracy of Model For The Bush-axle Type Parts.
In order to solve the above-mentioned technical problem used technical scheme is the utility model：A kind of lathe inner support aligning work
Dress, including tapered sleeve, the big end of tapered sleeve are provided with the outward flange for being used for being fixedly connected with machine tool chief axis, tapered sleeve male cone (strobilus masculinus) circumferentially
Cooperation is provided with multiple internal supporting blocks, is provided with internal supporting block close to one end of outward flange and is used to multiple internal supporting blocks being clamped on tapered sleeve
On extension spring, be all provided with the outer peripheral face of each internal supporting block other end fluted, the bottom of groove circumferential along tapered sleeve is in both ends senior middle school
The low arc in portion, by being provided with aligning block along the axially arranged centering pivot pin of tapered sleeve in groove, multiple aligning blocks are along tapered sleeve
Periphery be uniformly distributed, the top of aligning block is arranged with two along the circumferential both ends of tapered sleeve and is used to directly contact workpiece to be supported
The fin of inner surface, the length direction of fin is parallel with the axis of tapered sleeve, and the surface of fin is the face of cylinder, in tapered sleeve
Portion is additionally provided with the actuating unit for driving internal supporting block that workpiece is axially moved with stretching workpiece or unclamped along tapered sleeve.
Further, described actuating unit includes power cylinder, and the piston rod extension of power cylinder is put in from the big end of tapered sleeve
Stretched out afterwards from the small end of tapered sleeve, axial gland is connected with the front end of piston rod extension, the rear end of piston rod extension is provided with
Annular protrusion, between annular protrusion and tapered sleeve be provided with axially promote, on the outward flange of tapered sleeve be provided with for axially promote through
Through hole.
Further, described internal supporting block is three, and the number of corresponding aligning block is also three.
Further, the one end for being used to install extension spring on each internal supporting block is circumferentially with neck section along tapered sleeve, multiple
Neck section on internal supporting block surrounds an annular neck, and described extension spring is arranged in neck.
Further, the positioning shaft sleeve for carrying out axially position to workpiece is also associated with the outward flange of tapered sleeve.
Beneficial effect：
According to the utility model, by multiple internal supporting block synchronization tensioners for being arranged on tapered sleeve outer peripheral face or workpiece is unclamped, and
By the aligning block that is arranged on centering pivot pin wait arm swing with realize clamping workpiece center and workpiece itself mean center it
Between concentric self-adjusting, simple in construction, aligning is accurate, before solving to be machined using this frock, blank from
The defects of body（Oval, rib circle, forging and stamping hair side are unequal）The mismachining tolerance brought, the final machining accuracy for improving workpiece.
Further specific detailed description is done to the utility model with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is main structure diagram of the present utility model.
Fig. 2 is Fig. 1 left view.
Fig. 3 is Fig. 1 A-A views.
Fig. 4 is Fig. 2 B-B views.
Fig. 5 is stereochemical structure exploded view of the present utility model.
In figure, 1, tapered sleeve, 101, outward flange, 2, positioning shaft sleeve, 201,202,3, internal supporting block, 4, aligning block, 401, convex
Rib, 5, centering pivot pin, 6, axial gland, 7, extension spring, 8, axially promote, 9, piston rod extension, 901, annular protrusion, 901a,
Blind hole.
Embodiment
As shown in figure 4, a kind of lathe inner support aligning frock, including tapered sleeve 1, the big end of tapered sleeve, which is provided with, to be used for and lathe master
The outward flange 101 that axle is fixedly connected, circumferentially coordinate in the male cone (strobilus masculinus) of tapered sleeve and multiple internal supporting blocks 3 are installed（Incorporated by reference to referring to it
Remaining accompanying drawing）, be provided with the extension spring for being used for multiple internal supporting blocks 3 being clamped on tapered sleeve 1 close to one end of outward flange 101 on internal supporting block
7。
It is all provided with fluted on the outer peripheral face of each internal supporting block other end, the bottom of groove is along tapered sleeve circumferentially in the high middle part in both ends
Low arc（As shown in Figure 3）, by being provided with aligning block 4, aligning block 4 along the axially arranged centering pivot pin 5 of tapered sleeve in groove
Bottom surface it is consistent with bottom portion of groove shape.
Specifically, axially extending bore can be set respective slot on internal supporting block 3, also, in order to improve the aligning of frock essence
Degree, preferably enables circumference of the axially extending bore on multiple internal supporting blocks 3 along tapered sleeve 1 be uniformly distributed；Centering bearing pin 5 is located in accordingly
Axially extending bore in, feel relieved bearing pin 5 both ends respectively by extension spring 7 and the connector of actuating unit（Such as axial gland 6）It is axially fixed
In respective axially extending bore, aligning block 4 is provided with the mounting hole coordinated with centering pivot pin 5 gap for position, and aligning block 4 passes through peace
Fill hole and coordinate installation with corresponding centering bearing pin 5；Aligning block 4 is additionally provided with two and is used to directly contact work piece inner surface to be supported
Fin 401, and two fins 401 are symmetrical on the mounting hole central axis of aligning block 4, the length direction of fin 401
It is parallel with the axis of tapered sleeve 1, and the surface of fin is the face of cylinder, is additionally provided with the inside of tapered sleeve for driving the edge of internal supporting block 3
Tapered sleeve is axially moved with stretching workpiece or unclamped the actuating unit of workpiece.
In present embodiment, tapered sleeve is cylindrical hole using endoporus, and outer peripheral face is the conical tapered sleeve of circular conical surface.It is actual
In, tapered sleeve can also use endoporus as cylinder, and outer peripheral face is the tapered sleeve of pyramid, such as the male cone (strobilus masculinus) using triangular pyramid,
Three internal supporting blocks, or the male cone (strobilus masculinus) using rectangular pyramid are correspondingly arranged, is correspondingly arranged four internal supporting blocks etc..
Described actuating unit includes power cylinder, and power cylinder can use pneumatic cylinder or hydraulic cylinder.The piston of power cylinder
Bar extension 9 is stretched out after being put in from the end greatly of tapered sleeve 1 from the small end of tapered sleeve, and axial gland is connected with the front end of piston rod extension
6, the rear end of piston rod extension is provided with annular protrusion 901, is provided between annular protrusion 901 and tapered sleeve and axially promotes 8, in tapered sleeve
Outward flange 101 be provided with for axially promoting 8 through holes that pass through.
Annular protrusion 901 can be made into integration with piston rod, as shown in Figure 4；Can also annular protrusion 901 be fabricated separately
Afterwards, suit is fixed on corresponding position on piston rod extension 9.
It is provided with and is used for axially promoting the 8 blind hole 901a for coordinating installation towards one end of tapered sleeve 1 in annular protrusion 901.
The number of internal supporting block 3 can be designed as needed, and minimum is two, that is to say, that as long as it is multiple just.
In present embodiment, described internal supporting block 3 is set as 3, and the number of corresponding aligning block 4 is also three, each internal supporting block pair
One should be set axially to promote 8, i.e., the number for axially promoting 8 is also 3, correspondingly, the blind hole 901a on annular protrusion 901
Also it is three.
In present embodiment, the one end for being used to install extension spring 7 on each internal supporting block 3 is circumferentially with neck along tapered sleeve
Section, the neck section on multiple internal supporting blocks surrounds an annular neck 301a, and described extension spring 7 is arranged in neck 301a.
In order to carry out axially position to the workpiece to be processed installed in the periphery of aligning block 4, also connect on the outward flange of tapered sleeve 1
It is connected to the positioning shaft sleeve 2 for carrying out axially position to workpiece.
The left end of the axial direction of positioning sleeve 2 is used to contact the work played to the axially position of workpiece to be processed with workpiece to be processed
Be the flange 201 being attached with the outward flange 101 of tapered sleeve 1 with the right-hand member of, positioning sleeve 2, positioning sleeve 2 close to one end of flange to
Sunken inside, form the technology groove 202 for being easily installed bolt between outward flange 101 and flange 201.
4 illustrate operation principle of the present utility model below in conjunction with the accompanying drawings：
In use, tapered sleeve 1 is fixedly connected by outward flange 101 with machine tool chief axis, piston rod extension 9 is set the utility model
Put in the inner chamber of lathe hollow spindle.
When piston rod extension 9 is moved to the left, promoting 8 by axial direction due to internal supporting block 3 is arranged on axial gland 6 and annular
Between projection 901, then, multiple internal supporting blocks 3 are moved to the left in the presence of axially promoting 8, and inner support diameter diminishes, will be to be processed
After workpiece is sleeved on the periphery of aligning block 4, piston rod extension 9 moves right, multiple internal supporting blocks 3 along tapered sleeve 1 to the right（Greatly
End）It is mobile, concentric spreading, so as to which inner support diameter becomes larger, in the face of cylinder and workpiece to be processed of the fin 401 of aligning block 4
Circumference brought into linear contact slides, and during tensioner, aligning block 4 adaptively waits arm swing to make workpiece to be processed around centering pivot pin 5
Automatic-searching clamping center and itself central axis are mutually concentric, until by the complete tensioner of workpiece to be processed.
The utility model uses multiple aligning blocks 3, and each aligning block is provided with 2 fins, that is to say, that shared at least 4
Fin 401 is in contact with the inner peripheral surface of workpiece to be processed, and during clamping, aligning block 4 is with pivot pin 5 of feeling relieved for branch
By the way that leverage is carried out etc., arm swing can find optimal support level to point, so as to can not only realize to workpiece to be processed
Deformation defect caused by when clamping, and can eliminate thin-wall shaft sleeve class Workpiece clamping in the prior art；Multiple uniform cloth of aligning block
Put, so as to dress caused by the case of existing the defects of can also mean because Model For The Bush-axle Type Parts are oval, rib circle, forge and press hair side inequality
The concentric error between the center of circle and the workpiece to be processed actual average center of circle is pressed from both sides, in realizing that clamping workpiece center and workpiece itself are average
Concentric self-adjusting between the heart.
Claims (5)
- A kind of 1. lathe inner support aligning frock, it is characterised in that：Including tapered sleeve（1）, the big end of tapered sleeve, which is provided with, to be used for and lathe The outward flange that main shaft is fixedly connected（101）, circumferentially coordinate in the male cone (strobilus masculinus) of tapered sleeve and multiple internal supporting blocks be installed（3）, in inner support Close to outward flange on block（101）One end be provided with and be used for multiple internal supporting blocks（3）It is clamped on tapered sleeve（1）On extension spring（7）, each Be all provided with the outer peripheral face of the internal supporting block other end it is fluted, the bottom of groove along tapered sleeve circumferentially in the low arc in the high middle part in both ends, it is recessed By along the axially arranged centering pivot pin of tapered sleeve in groove（5）Aligning block is installed（4）, multiple aligning blocks are equal along the periphery of tapered sleeve Even distribution, aligning block（4）Bottom surface it is consistent with bottom portion of groove shape, aligning block（4）Top along the circumferential both ends pair of tapered sleeve Claim to be provided with two fins for being used to directly contact work piece inner surface to be supported（401）, fin（401）Length direction and tapered sleeve （1）Axis it is parallel, and the surface of fin is the face of cylinder, is additionally provided with the inside of tapered sleeve for driving internal supporting block（3）Along cone Set is axially moved with stretching workpiece or unclamped the actuating unit of workpiece.
- A kind of 2. lathe according to claim 1 inner support aligning frock, it is characterised in that：Described actuating unit includes Power cylinder, the piston rod extension of power cylinder（9）From tapered sleeve（1）Big end is stretched out after putting in from the small end of tapered sleeve, is stretched in piston rod The front end for going out portion is connected with axial gland（6）, the rear end of piston rod extension is provided with annular protrusion（901）, annular protrusion is with boring It is provided between set and axially promotes（8）, in the outward flange of tapered sleeve（101）Be provided with for axially promote through through hole.
- A kind of 3. lathe according to claim 1 inner support aligning frock, it is characterised in that：Described internal supporting block（3）For Three, corresponding aligning block（4）Number also be three.
- A kind of 4. lathe according to claim 1 inner support aligning frock, it is characterised in that：In each internal supporting block（3）On For installing extension spring（7）One end be circumferentially with neck section along tapered sleeve, the neck section on multiple internal supporting blocks surrounds an annular Neck（301a）, described extension spring（7）It is arranged on neck（301a）It is interior.
- A kind of 5. lathe according to claim 1 inner support aligning frock, it is characterised in that：In tapered sleeve（1）Outward flange On be also associated with for workpiece carry out axially position positioning shaft sleeve（2）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721084014.1U CN207205315U (en) | 2017-08-28 | 2017-08-28 | A kind of lathe inner support aligning frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721084014.1U CN207205315U (en) | 2017-08-28 | 2017-08-28 | A kind of lathe inner support aligning frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207205315U true CN207205315U (en) | 2018-04-10 |
Family
ID=61825363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721084014.1U Expired - Fee Related CN207205315U (en) | 2017-08-28 | 2017-08-28 | A kind of lathe inner support aligning frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207205315U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170674A (en) * | 2019-04-15 | 2019-08-27 | 谢舒静 | Internal expanding fixture for thin-wall sleeve processing |
-
2017
- 2017-08-28 CN CN201721084014.1U patent/CN207205315U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170674A (en) * | 2019-04-15 | 2019-08-27 | 谢舒静 | Internal expanding fixture for thin-wall sleeve processing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180410 Termination date: 20190828 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |