CN107442796A - A kind of lathe inner support aligning frock - Google Patents
A kind of lathe inner support aligning frock Download PDFInfo
- Publication number
- CN107442796A CN107442796A CN201710752520.1A CN201710752520A CN107442796A CN 107442796 A CN107442796 A CN 107442796A CN 201710752520 A CN201710752520 A CN 201710752520A CN 107442796 A CN107442796 A CN 107442796A
- Authority
- CN
- China
- Prior art keywords
- tapered sleeve
- aligning
- internal supporting
- block
- workpiece
- 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.)
- Granted
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
- B23B31/40—Expansion mandrels
- B23B31/404—Gripping the work or tool by jaws moving radially controlled by conical surfaces
- B23B31/4053—Gripping the work or tool by jaws moving radially controlled by conical surfaces using fluid-pressure means to actuate the gripping means
- B23B31/406—Gripping the work or tool by jaws moving radially controlled by conical surfaces using fluid-pressure means to actuate the gripping means using mechanical transmission through the spindle
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
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
The present invention relates to machining technology field, 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 disclosed in Application No. 201220683817X patent of invention
A kind of aligning fixture for clamping fine forge piece.
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 complicated disclosed in Application No. 201220683817X patent of invention, and
And aligning fixture disclosed in the patent simply can carry out aligning in itself to fixture, it can not be adjusted between workpiece and fixture
With one heart（In the prior art, concentric between fixture and machine tool chief axis is easily realized, therefore, as long as in ensureing that workpiece is average
It is concentric between the heart and fixture, you can realize it is concentric between workpiece mean center and machine tool chief axis, so as to improve work pieces process
Precision）, thus, when it can not solve workpiece to be processed and has the defects of out-of-roundness in itself, the part processed easily occurs
Became uneven, the problem of influenceing the machining accuracy of part.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention provides a kind of lathe inner support aligning frock, can adjust workpiece with
Between fixture with one heart, so as to improve the machining accuracy of Model For The Bush-axle Type Parts.
The in order to solve the above-mentioned technical problem used technical scheme of the present invention is：A kind of lathe inner support aligning frock,
Including tapered sleeve, the big end of tapered sleeve is provided with the outward flange for being used for being fixedly connected with machine tool chief axis, circumferentially matches somebody with somebody in the male cone (strobilus masculinus) of tapered sleeve
Conjunction 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
Extension spring, be 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 high middle part in both ends
Low arc, 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 is uniformly distributed, and the top of aligning block is arranged with two along the circumferential both ends of tapered sleeve and is used to directly contact in workpiece to be supported
The fin on 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 the inside of tapered sleeve
It 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 present invention, by multiple internal supporting block synchronization tensioners for being arranged on tapered sleeve outer peripheral face or workpiece is unclamped, and pass through setting
Wait arm swing concentric between itself mean center of clamping workpiece center and workpiece to realize in the aligning block on pivot pin of feeling relieved
Self-adjusting, simple in construction, aligning is accurate, before solving to be machined using this frock, the defects of blank itself
（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 present invention with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is the main structure diagram of the present invention.
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 the stereochemical structure exploded view of the present invention.
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 invention below in conjunction with the accompanying drawings：
For the present invention in use, tapered sleeve 1 is fixedly connected by outward flange 101 with machine tool chief axis, piston rod extension 9 is arranged on lathe
In the inner chamber of 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 present invention uses multiple aligning blocks 3, and each aligning block is provided with 2 fins, that is to say, that shared at least 4 fins
401 are in contact with the inner peripheral surface of workpiece to be processed, and during clamping, aligning block 4 is led to pivot pin 5 of feeling relieved for fulcrum
Optimal support level can be found by crossing the arm swings such as leverage is carried out, so as to realize the folder to workpiece to be processed
Tightly, deformation defect caused by when and thin-wall shaft sleeve class Workpiece clamping in the prior art can be eliminated；Multiple aligning blocks are evenly arranged,
So as to clamping 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
Concentric error between the center of circle and the workpiece to be processed actual average center of circle, realize clamping workpiece center and workpiece itself mean center
Between concentric self-adjusting.
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（2）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 |
|---|---|---|---|
| CN201710752520.1A CN107442796B (en) | 2017-08-28 | 2017-08-28 | Internal stay aligning tool for machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710752520.1A CN107442796B (en) | 2017-08-28 | 2017-08-28 | Internal stay aligning tool for machine tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107442796A true CN107442796A (en) | 2017-12-08 |
| CN107442796B CN107442796B (en) | 2023-04-18 |
Family
ID=60494189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710752520.1A Active CN107442796B (en) | 2017-08-28 | 2017-08-28 | Internal stay aligning tool for machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107442796B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110549145A (en) * | 2019-09-19 | 2019-12-10 | 浙江今飞凯达轮毂股份有限公司 | Internal stay formula clamping frock |
| CN111037070A (en) * | 2019-12-30 | 2020-04-21 | 哈尔滨工业大学 | Automatic internal stay frock clamp of assembly before special-shaped component welding |
| CN112207597A (en) * | 2020-09-03 | 2021-01-12 | 福建省威诺数控有限公司 | Floating taper sleeve centering clamp |
| CN112440134A (en) * | 2020-11-13 | 2021-03-05 | 北京新风航天装备有限公司 | Intelligent internal stay tool equipment of thin wall type |
| CN113547143A (en) * | 2020-04-26 | 2021-10-26 | 航天科工惯性技术有限公司 | Thin-wall structural part clamping device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252515A (en) * | 2013-06-07 | 2013-08-21 | 新余钢铁集团有限公司 | Special fixture for processing outer circle of long-cylinder part |
| WO2013170475A1 (en) * | 2012-05-18 | 2013-11-21 | 浙江联宜电机股份有限公司 | Expanding and tightening clamping tool |
| CN103878690A (en) * | 2014-02-24 | 2014-06-25 | 安庆中船柴油机有限公司 | Core-adjustable external grinding fixture |
| CN204592023U (en) * | 2015-02-16 | 2015-08-26 | 浙江浙矿重工股份有限公司 | A kind of axle position structure |
| CN204843025U (en) * | 2015-08-04 | 2015-12-09 | 巢湖市南特精密制造有限公司 | Cylinder internal stay presss from both sides tight frock |
-
2017
- 2017-08-28 CN CN201710752520.1A patent/CN107442796B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013170475A1 (en) * | 2012-05-18 | 2013-11-21 | 浙江联宜电机股份有限公司 | Expanding and tightening clamping tool |
| CN103252515A (en) * | 2013-06-07 | 2013-08-21 | 新余钢铁集团有限公司 | Special fixture for processing outer circle of long-cylinder part |
| CN103878690A (en) * | 2014-02-24 | 2014-06-25 | 安庆中船柴油机有限公司 | Core-adjustable external grinding fixture |
| CN204592023U (en) * | 2015-02-16 | 2015-08-26 | 浙江浙矿重工股份有限公司 | A kind of axle position structure |
| CN204843025U (en) * | 2015-08-04 | 2015-12-09 | 巢湖市南特精密制造有限公司 | Cylinder internal stay presss from both sides tight frock |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110549145A (en) * | 2019-09-19 | 2019-12-10 | 浙江今飞凯达轮毂股份有限公司 | Internal stay formula clamping frock |
| CN110549145B (en) * | 2019-09-19 | 2024-04-09 | 浙江今飞凯达轮毂股份有限公司 | Internal stay formula clamping frock |
| CN111037070A (en) * | 2019-12-30 | 2020-04-21 | 哈尔滨工业大学 | Automatic internal stay frock clamp of assembly before special-shaped component welding |
| CN113547143A (en) * | 2020-04-26 | 2021-10-26 | 航天科工惯性技术有限公司 | Thin-wall structural part clamping device |
| CN113547143B (en) * | 2020-04-26 | 2024-05-10 | 航天科工惯性技术有限公司 | Thin-wall structural member clamping device |
| CN112207597A (en) * | 2020-09-03 | 2021-01-12 | 福建省威诺数控有限公司 | Floating taper sleeve centering clamp |
| CN112440134A (en) * | 2020-11-13 | 2021-03-05 | 北京新风航天装备有限公司 | Intelligent internal stay tool equipment of thin wall type |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107442796B (en) | 2023-04-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107442796A (en) | A kind of lathe inner support aligning frock | |
| CN103252515B (en) | A kind of long excircle of barrel-shaped parts Special Fixture for Machining | |
| US20170209940A1 (en) | Lathe Chuck for Aluminum Alloy Hubs | |
| CN208601062U (en) | A kind of elder generation's inner support outer clip fixture again | |
| CN205363303U (en) | Outer star gear internal expanding location locking clamp | |
| CN201960389U (en) | Automobile braking hub numerical control vertical lathe fixture | |
| CN113458433A (en) | Clamping tool for processing external thread of large thin-wall cylinder | |
| CN209681722U (en) | A kind of thin walled cylinder body inner hole turning clamp | |
| CN105364564A (en) | Rotatable clamp for circular part drilling | |
| US3604717A (en) | Pinch chuck | |
| CN105618803A (en) | Expanding clamp for turning thin-walled part | |
| JP2002144116A (en) | Tire wheel working chuck | |
| CN104043850A (en) | Floating clamp | |
| CN207205315U (en) | A kind of lathe inner support aligning frock | |
| CN102728765A (en) | Annular part fixture | |
| CN208514144U (en) | Camshaft milling machine clamp mechanism | |
| CN102430936B (en) | Self-adaptive blank outline clamping mechanism | |
| CN109128885A (en) | Thin-wall tube-shaped excircle of workpiece turning clamping tooling and clamping method | |
| CN103465079A (en) | Special thin-walled machining fixture for automotive piston cylinder | |
| CN211276568U (en) | Tensioning tool for turning impeller machining | |
| US2852265A (en) | Work holder and centering means | |
| CN205362733U (en) | Elasticity turning anchor clamps suitable for processing of thin wall spare | |
| CN208543242U (en) | A kind of Machining of Shaft-type Parts positioning fixture | |
| CN106312873B (en) | The outer holder clamping device of the weak long tube kind part of rigidity | |
| CN203751708U (en) | Jaw type self-centering machine tool center frame |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |