CN103737404B - Clamp for machining thin-wall sleeve part - Google Patents
Clamp for machining thin-wall sleeve part Download PDFInfo
- Publication number
- CN103737404B CN103737404B CN201310684029.1A CN201310684029A CN103737404B CN 103737404 B CN103737404 B CN 103737404B CN 201310684029 A CN201310684029 A CN 201310684029A CN 103737404 B CN103737404 B CN 103737404B
- Authority
- CN
- China
- Prior art keywords
- ball
- fixture
- sleeve
- cylinder body
- truncated cone
- 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.)
- Active
Links
- 238000003754 machining Methods 0.000 title description 2
- 238000009434 installation Methods 0.000 claims description 26
- 230000004308 accommodation Effects 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 210000000481 breast Anatomy 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses a clamp for processing a thin-wall sleeve part, which comprises a main body part (10), wherein the main body part (10) is provided with a mounting part (11) for mounting the clamp on a processing machine and a workpiece setting part for clamping the thin-wall sleeve part (60), and is characterized in that the workpiece setting part comprises a truncated cone-shaped part (14) and balls (20), the truncated cone-shaped part is reduced from the mounting part (11), the balls (20) can be abutted against the thin-wall sleeve part (60) and move along the axial direction of the truncated cone-shaped part (14) to protrude outwards to form a centering effect on the thin-wall sleeve part (60), so that the clamping force applied to the thin-wall sleeve part can be adjusted more accurately without deforming the thin-wall sleeve part.
Description
Technical field
The present invention relates to fixture, particularly, relate to a kind of fixture for processing thin-walled sleeve part.
Background technology
In field of machining, easily affect the crudy of parts because thin wall sleeve part is difficult to reliably locate.
Particularly in the prior art, the three-jaw chuck of routine that utilizes positions thin wall sleeve part more, even if make processed parts meet the requirements in clamping state, also likely after removing chuck, there is deformation thus easily make parts form the parts corresponding with the shape of described three-jaw chuck, thus the requirement of thin walled cylinder body parts to circularity cannot be ensured.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of fixture for processing thin-walled sleeve part, and this fixture can not make thin walled cylinder body parts deform due to the clamping force of fixture.
In order to solve the problems of the technologies described above, the invention provides a kind of fixture for processing thin-walled sleeve part, this fixture comprises main part, described main part is formed for this fixture being installed on the installation portion on processing equipment and being used for clamping the workpiece setting portion of described thin walled cylinder body parts, described workpiece setting portion comprises the truncated cone-shaped portion that ball and diameter diminish along the direction away from described installation portion, described ball can be connected on described thin walled cylinder body parts and along described truncated cone-shaped portion move axially thus outwardly to form certralizing ability to described thin walled cylinder body parts.
Preferably, described ball has three at least, is uniformly distributed in the circumference in described truncated cone-shaped portion.
Preferably, the outer peripheral face in described truncated cone-shaped portion offers groove, described ball contacts with the bottom surface of corresponding described groove, and the degree of depth of described groove deepens along the direction away from described installation portion.
Preferably, described flute profile becomes spiral groove.
Preferably, this fixture also comprises the sleeve that cover installs to described truncated cone-shaped portion, the sidewall of described sleeve offers ball accommodation hole along the circumference of this sleeve is through, described ball accommodation hole maintains a described ball, and described ball contacts with described truncated cone-shaped portion, to enable described ball outwardly to form certralizing ability to described thin walled cylinder body parts from described ball accommodation hole when being subject to the extruding to described installation portion.
Preferably, described ball accommodation hole is formed as the bellmouth that diameter becomes large from outside to inside, remains in this ball accommodation hole to make described ball.
Preferably, away from the locking auxiliary section other end of described installation portion is provided with for installing card stop member on described main part, described sleeve can be pressed to workpiece setting portion by described stopper.
Preferably, described workpiece setting portion is formed for limiting the shoulders of described thin walled cylinder body parts to described installation portion movement.
Preferably, cylindrical portion is formed with between described shoulders and described truncated cone-shaped portion.
Preferably, described fixture also comprises and overlaps the axial location sleeve that is set in described workpiece setting portion, and this axial location sleeve comprises shoulder for abutting described thin walled cylinder body ends and the flexible member of resiliency supported between described shoulders and described shoulder.
Pass through technique scheme, because the fixture for processing thin-walled sleeve part of the present invention utilizes can be connected on described thin walled cylinder body parts and outwardly to feel relieved to thin walled cylinder body parts and to clamp along moving axially of truncated cone-shaped portion, so can more accurately adjust the clamping force be applied on thin walled cylinder body parts, and be unlikely to make thin walled cylinder body part distortion.
Other features and advantages of the present invention are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for description, is used from explanation the present invention, but is not construed as limiting the invention with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the schematic diagram of the fixture for processing thin-walled sleeve part of the present invention.
Fig. 2 is the AA sectional view of Fig. 1.
Description of reference numerals
10 main part 11 installation portion 12 shoulders 13 cylindrical portion
14 groove 16 sleeve auxiliary section, truncated cone-shaped portions 15 17 engage auxiliary section
20 ball 30 sleeve 31 limiting section 32 ball accommodation holes
33 installation portion 40 axial location sleeve 41 flexible member 42 shoulders
50 stopper 60 thin walled cylinder body parts 70 are top
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
In the present invention, when not doing contrary explanation, the noun of locality such as " upper and lower, left and right " of use typically refers to reference to upper and lower, left and right shown in the drawings; " inside and outside " refers to profile inside and outside relative to each parts itself.
As shown in Figure 1, the invention provides a kind of fixture for processing thin-walled sleeve part, this fixture comprises main part 10, main part 10 is formed for this fixture being installed on the installation portion 11 on processing equipment and being used for clamping the workpiece setting portion of thin walled cylinder body parts 60, workpiece setting portion comprises the truncated cone-shaped portion 14 and ball 20 that diminish from installation portion 11, ball 20 can be connected on described thin walled cylinder body parts 60 and along truncated cone-shaped portion 14 move axially thus outwardly to form certralizing ability to thin walled cylinder body parts 60.Preferably ball 20 has three at least, is uniformly distributed in the circumference in truncated cone-shaped portion 14, thus can play reliable and stable certralizing ability.
As a kind of detailed description of the invention of the present invention, the outer peripheral face in truncated cone-shaped portion 14 offers groove 15, each ball 20 contacts with the bottom surface of corresponding groove 15, and the degree of depth of each groove 15 deepens along the direction away from installation portion 11.Can utilize like this plane by being fixed on installation portion 11 and engineering machinery top between thin walled cylinder body parts keep ball 20.
More preferably, each groove 15 is formed as spiral groove.Like this when utilizing the processing thin-walled sleeve parts 60 such as lathe tool, there is rotation and the displacement of trace under the effect of the friction composite force that ball 20 can be made to transmit at the inwall by thin walled cylinder body parts 60 from right to left, thus feel relieved reliably and clamp.
As another kind of detailed description of the invention of the present invention, this fixture also comprises sleeve 30, the sidewall of sleeve 30 offers ball accommodation hole 32 along the circumference of this sleeve 30 is through, each ball accommodation hole 32 maintains a ball 20 respectively, and each ball 20 contacts with truncated cone-shaped portion 14, to enable ball 20 outwardly to form certralizing ability to thin walled cylinder body parts 60 from ball accommodation hole 32 when being subject to the extruding to installation portion 11.Sleeve 30 now can utilize the diameter larger part in truncated cone-shaped portion 14 to install, and that is, sleeve 30 is sleeved in truncated cone-shaped portion 14, and utilizes the diameter larger part in truncated cone-shaped portion 14 to carry out axial location.
In addition, the shoulders 12 in Fig. 1 also can be utilized to carry out axial location.Like this, ball 20 is when being subject to the cutting force transmitted by thin walled cylinder body parts 60, because this cutting force has the axial thrust load towards shoulders, this ball 20 can becoming large direction towards shoulders 12 diameter and move along truncated cone-shaped portion 14 gradually, thus make ball 20 outwardly, centering thin walled cylinder body parts 60 are suitable for correspondence above-mentioned cutting force.Compare the three-jaw chuck utilizing with prior art and can only apply certain clamping force to feel relieved to thin walled cylinder body parts 60, what fixture of the present invention provided thin walled cylinder body parts 60 changes with the size to the component of shoulders in corresponding and cutting force for the clamping force of feeling relieved, and therefore can not apply excessive clamping force to thin walled cylinder body parts 60 and make it be out of shape.
In addition, ball 20 is formed as the shape that can roll in truncated cone-shaped portion 14 or slide, such as cylinder etc.Preferred ball 20 is formed as spherosome, and the advantage being formed as spherosome is stated being combined in following preferred structure.
The structure of the engineering machinery that the structure of installation portion 11 will be applied to according to this fixture is arranged, and is arranged in engineering machinery to enable shown fixture.Such as, the three-jaw chuck utilized as lathe accessories is fixed, but, because centre is connected with miscellaneous part, be disadvantageous to the centering of thin walled cylinder body parts 60.Therefore preferably installation portion 11 is formed as inserting the taper shank portion be installed in the spindle hole of processing equipment.Particularly, this taper shank portion is formed as Morse taper shank.Like this, comparatively to the centering of accurately thin walled cylinder body parts 60, thus the crudy of parts can be provided.
In addition, between shoulders 12 and truncated cone-shaped portion 14, be preferably formed as the cylindrical portion 13 coordinated with the inner peripheral surface of sleeve 30, thus can reliably make sleeve 30 remain on main part 10.
Ball accommodation hole 32 is formed as the shape can holding ball 20, and such as shape is the step-like circular hole at arranged outside stop shoulder, is preferably formed to the bellmouth that diameter becomes large from outside to inside, remains in this ball accommodation hole 32 to make ball 20.In addition, because one end of sleeve 30 is by shoulders 12 backstop, also just say, remain on the displacement that the ball be formed as in the ball accommodation hole 32 of bellmouth can occur less, therefore, it is possible to more accurately adjust the clamping force be applied on thin walled cylinder body parts 60 among a small circle, and be unlikely to make thin walled cylinder body part distortion.
Preferred employing structure as shown in Figure 1, not only can limit the range of movement of ball 20 effectively effectively, but also can be convenient at this fixture of assembling.Can this fixture of use of simple and fast, and a large amount of time need not be spent to carry out ball 20 arrange.Particularly, when assembling this fixture, can make one end that the diameter in truncated cone-shaped portion 14 is less down, ball 20 is placed into the bosom of groove 15, install on described main part 10 sleeve 30 is overlapped from bottom to top.Namely be set to the size that can accommodate ball 20 by between the bosom of groove 15 and sleeve 30 inner peripheral surface, preferably be set to interference fit, like this when assembling sleeve 30 and being provided with the main part 10 of ball 20, the inner peripheral surface of described sleeve 30 can contact with described ball 20 and apply the thrust along installation direction to ball 20, thus ball 20 is pushed to suitable location along groove 15 to shoulders 12.
As shown in Figure 2, particularly, at least three balls 20 are six balls, and ball accommodation hole is six, and groove 15 is six and is distributed on the outer surface in truncated cone-shaped portion 14.
As a kind of detailed description of the invention of the present invention, away from the locking auxiliary section 17 other end of installation portion 11 is provided with for installing card stop member 50 on main part 10, sleeve 30 can be pressed in shoulders 12 by stopper 50.
That is, being installed to after on main part 10 by sleeve 30 cover, stopper 50 is utilized finally to complete the installation of sleeve 30.Certainly, also stopper 50 can be arranged to be formed in the projection on locking auxiliary section 17, after the elasticity utilizing sleeve 30 itself to have crosses this projection, be engaged by this projection.
As preferred embodiment of the present invention, described fixture also comprises and overlaps the axial location sleeve 40 that is set on sleeve 30, and this axial location sleeve 40 comprises for the shoulder 42 of thin walled cylinder body parts 60 end and the flexible member 41 of resiliency supported between shoulders 12 and shoulder.
Therefore when assembling this fixture, first axial location sleeve 40 cover is installed on sleeve 30, its one end is made to abut to shoulder, carrying out the installation between sleeve 30 and main part 10 again, afterwards following flexible member 41 is connected between shoulders 12 and shoulder, thus completes fixture of the present invention.
This fixture in use, not only can adjust the clamping force be applied on thin walled cylinder body parts 60, and is unlikely to thin walled cylinder body parts 60 are out of shape.And due to the existence of axial location sleeve 40, clamped thin walled cylinder body parts 60 utilize described flexible member 41 to be easily removed.Axial location sleeve 40 and sleeve 30 are coaxially arranged.
Particularly, flexible member 41 is for being set in the Compress Spring on axial location sleeve 40.Flexible member 41 when being subject to the power from top 70, reliably and stably can be compressed, and after release is top, this flexible member 41 is in force-free state, thus utilizes elasticity stored in flexible member 41 thin walled cylinder body parts 60 can be released.
Below in conjunction with Fig. 1, the using method of this fixture and advantage are described.
First, by being formed as, the installation portion 11 being formed as taper shank portion is inserted in the spindle hole (not shown) of lathe, and passes through tie-rod.Installed on sleeve 30 by the thin walled cylinder body parts 60 of processing cover, and hold out against one end of thin walled cylinder body parts 60 with top 70 of lathe, now flexible member 41 can be compressed into shown position.Thus, the axis of thin walled cylinder body parts 60 moves and is completely restricted.When turning; thin walled cylinder body parts 60 under the effect of cutting force, dextrosinistral micro-displacement and rotation can occur; thus drive ball 20 from right to left micro-displacement to occur from spiral channel-shaped groove 15, to protrude outside ball 20 and by qualitative for thin walled cylinder body parts 60 and clamp simultaneously.
After turning, exit top 70 of tailstock, under the effect of flexible member 41, thin walled cylinder body parts 60 move from left to right, thus drive the lower of ball 20 dislocation spiral groove from left to right, and thin walled cylinder body parts 60 can be easily removed.
From foregoing description, fixture clamping provided by the present invention action is simple, and without the need to using the aids such as spanner, can provide operating efficiency.And due to the existence of flexible member 41, can easily take out thin walled cylinder body parts 60 and stuck situation can not occur.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.It should be noted that in addition, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible combination.
In addition, also can be combined between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. the fixture for processing thin-walled sleeve part, this fixture comprises main part (10), described main part (10) is formed for this fixture being installed on the installation portion (11) on processing equipment and the workpiece setting portion for clamping described thin walled cylinder body parts (60), it is characterized in that, described workpiece setting portion comprises the truncated cone-shaped portion (14) that ball (20) and diameter diminish along the direction away from described installation portion (11), described ball (20) can be connected to described thin walled cylinder body parts (60) upper and along described truncated cone-shaped portion (14) move axially thus outwardly to form certralizing ability to described thin walled cylinder body parts (60).
2. fixture according to claim 1, is characterized in that, described ball (20) has three at least, is uniformly distributed in the circumference of described truncated cone-shaped portion (14).
3. fixture according to claim 1, it is characterized in that, the outer peripheral face of described truncated cone-shaped portion (14) offers groove (15), described ball (20) contacts with the bottom surface of corresponding described groove (15), and the degree of depth of described groove (15) deepens along the direction away from described installation portion (11).
4. fixture according to claim 3, is characterized in that, described groove (15) is formed as spiral groove.
5. fixture according to claim 1, it is characterized in that, this fixture also comprises the sleeve (30) that cover installs to described truncated cone-shaped portion (14), the sidewall of described sleeve (30) offers ball accommodation hole (32) along the circumference of this sleeve (30) is through, described ball accommodation hole (32) maintains a described ball (20), and described ball (20) contacts with described truncated cone-shaped portion (14), to enable described ball (20) outwardly to form certralizing ability to described thin walled cylinder body parts (60) from described ball accommodation hole (32) when being subject to the extruding to described installation portion (11).
6. fixture according to claim 5, is characterized in that, described ball accommodation hole (32) is formed as the bellmouth that diameter becomes large from outside to inside, remains in this ball accommodation hole (32) to make described ball (20).
7. fixture according to claim 5, it is characterized in that, the other end away from described installation portion (11) on described main part (10) is provided with the locking auxiliary section (17) for installing card stop member (50), described sleeve (30) can be pressed to workpiece setting portion by described stopper (50).
8. according to the fixture in claim 1-7 described in any one, it is characterized in that, described workpiece setting portion is formed for limiting the shoulders (12) of described thin walled cylinder body parts (60) to described installation portion (11) movement.
9. fixture according to claim 8, is characterized in that, is formed with cylindrical portion (13) between described shoulders (12) and described truncated cone-shaped portion (14).
10. according to Claim 8 described in fixture, it is characterized in that, described fixture also comprises and overlaps the axial location sleeve (40) that is set in described workpiece setting portion, and this axial location sleeve (40) comprises for the shoulder (42) of described thin walled cylinder body parts (60) end abutment and the flexible member (41) of resiliency supported between described shoulders (12) and described shoulder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310684029.1A CN103737404B (en) | 2013-12-13 | 2013-12-13 | Clamp for machining thin-wall sleeve part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310684029.1A CN103737404B (en) | 2013-12-13 | 2013-12-13 | Clamp for machining thin-wall sleeve part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103737404A CN103737404A (en) | 2014-04-23 |
| CN103737404B true CN103737404B (en) | 2016-04-20 |
Family
ID=50494507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310684029.1A Active CN103737404B (en) | 2013-12-13 | 2013-12-13 | Clamp for machining thin-wall sleeve part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103737404B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104029065A (en) * | 2014-06-13 | 2014-09-10 | 沈阳飞机工业（集团）有限公司 | Three-edge centering and clamping mechanism with rollers |
| CN106694929B (en) * | 2017-03-24 | 2018-05-01 | 西北工业大学 | A kind of grip device of processing thin-walled cylinder ring parts |
| CN107962222B (en) * | 2017-11-24 | 2020-05-29 | 中国航发沈阳黎明航空发动机有限责任公司 | Milling deformation control device and method for conical thin-wall part |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4637620A (en) * | 1984-09-04 | 1987-01-20 | Graham Merton J | Two stage chuck |
| JPH0911009A (en) * | 1995-06-22 | 1997-01-14 | Toyomoto Hiromitsu | Rotary tool |
| CN101733669A (en) * | 2009-11-30 | 2010-06-16 | 江南机器（集团）有限公司 | Precise positioning and clamping device for stepped thin-wall barrel |
| CN201988972U (en) * | 2011-04-02 | 2011-09-28 | 苏州市职业大学 | Turning fixture of thin-wall sleeve |
| CN202964069U (en) * | 2012-11-21 | 2013-06-05 | 天津市天高机电装备有限公司 | Anti-vibration support device for machining of thin-wall deep hole workpiece |
-
2013
- 2013-12-13 CN CN201310684029.1A patent/CN103737404B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4637620A (en) * | 1984-09-04 | 1987-01-20 | Graham Merton J | Two stage chuck |
| JPH0911009A (en) * | 1995-06-22 | 1997-01-14 | Toyomoto Hiromitsu | Rotary tool |
| CN101733669A (en) * | 2009-11-30 | 2010-06-16 | 江南机器（集团）有限公司 | Precise positioning and clamping device for stepped thin-wall barrel |
| CN201988972U (en) * | 2011-04-02 | 2011-09-28 | 苏州市职业大学 | Turning fixture of thin-wall sleeve |
| CN202964069U (en) * | 2012-11-21 | 2013-06-05 | 天津市天高机电装备有限公司 | Anti-vibration support device for machining of thin-wall deep hole workpiece |
Non-Patent Citations (2)
| Title |
|---|
| 加工薄壁零件的弹性胀紧夹具;范凤仙;《机械制造》;20001025(第10期);31 * |
| 弹性夹具在薄壁筒状零件上的应用;郭辉;《煤矿机械》;20100731(第07期);117-118 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103737404A (en) | 2014-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203184683U (en) | Lathing fixture structure of thin-wall barrel-shaped parts | |
| CN201862802U (en) | Inner expansion type positioning clamp | |
| CN201988969U (en) | Fixture for hydraulic clamping vehicle for thin-walled parts | |
| CN203470948U (en) | Spindle clamp | |
| CN103737404B (en) | Clamp for machining thin-wall sleeve part | |
| CN104668593A (en) | Expanded thin-walled outer sleeve clamping tool | |
| CN103447851A (en) | Turning deformation prevention clamp for annular thin-wall parts | |
| CN104308211A (en) | Double-disc automatic centering sleeve lathe clamp | |
| JP2015136740A (en) | Clamp device | |
| CN103659391B (en) | Taper shank automatic clamping device | |
| CN103894641A (en) | Outer-ejection-type inner expansion clamping sleeve | |
| CN205020909U (en) | Elasticity jump ring and cutter fixed structure with safety lock structure | |
| CN202162406U (en) | Thin-wall cylinder type part turning clamp | |
| TWI698299B (en) | Tool chuck, tool holding method and tool removing method | |
| CN204504275U (en) | Swollen dabber clamp in a kind of self-centering | |
| CN105562749B (en) | A kind of automobile-used clamping method of elastic packing gasket ring | |
| KR101471183B1 (en) | Auto chucking device for CNC lathe | |
| CN202240608U (en) | Hard turning external-circle clamp for besides-star wheel | |
| KR20140080583A (en) | Material holder | |
| CN102513858A (en) | Long bar stock fixture for lathe | |
| CN104439361A (en) | Expanding sleeve centering clamp | |
| CN2933723Y (en) | Spring ball clamp structure | |
| CN203696482U (en) | Inner hole machining fixing clamp for ring parts | |
| CN105537637A (en) | Rapid spring fixture mandrel | |
| CN211387715U (en) | Petal type product machining clamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 410013 Yuelu District, Hunan, silver basin Road, No. 361, No. Applicant after: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. Address before: 410007 ZOOMLION grand pond Industrial Park, Yuanda Road, Changsha economic and Technological Development Zone, Changsha, Hunan 2, China Applicant before: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 410007 CHANGSHA, HUNAN PROVINCE TO: 410013 CHANGSHA, HUNAN PROVINCE |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |