CN106736736A - A kind of fixture suitable for the processing of bead part - Google Patents
A kind of fixture suitable for the processing of bead part Download PDFInfo
- Publication number
- CN106736736A CN106736736A CN201611112563.5A CN201611112563A CN106736736A CN 106736736 A CN106736736 A CN 106736736A CN 201611112563 A CN201611112563 A CN 201611112563A CN 106736736 A CN106736736 A CN 106736736A
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- chuck oil
- support member
- bead part
- chuck
- 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
- 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
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
-
- 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
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
A kind of fixture suitable for the processing of bead part of the invention, including chuck oil cylinder and support member, wherein, chuck oil cylinder is right cylindrical oil cylinder；A support member is fixed with the upper surface of chuck oil cylinder；Support member is fixedly arranged above floating locating piece；Elastic angular locating piece is fixed with the side of support member；The center in the vertical direction of chuck oil cylinder is connected with a pull bar；Pull bar is socketed with a tension mandrel；A spline ringfeder is socketed with the outside of tension mandrel；The outer sheath reception processing bead part of spline ringfeder；Tension mandrel is socketed with a tightening piece in the one end away from chuck oil cylinder；Beneficial effects of the present invention are：Be installed convenience, simple structure, suitable part volume processing, high in machining efficiency, low cost.
Description
Technical field：
The present invention relates to a kind of fixture, and in particular to a kind of fixture suitable for the processing of bead part.
Background technology：
Bead part is odd-shaped part, and during the manufacturing, the fixation to the part is indispensable important ring
Section.At present, the fixing means that is installed of bead part is mainly using traditional fixture, with reference to manually carrying out.
Complete the batch machining to bead part in a vertical machining centre, the success or not of its fixture is to closing weight
Will.Traditional processing method needs the artificial installation for detecting part one by one, and whether position is correct, the fixture that this kind of method is used
Tend not to realize or the angular of parts to be processed, end face and centralized positioning are realized in part, and need artificial to be processed to detect
The fixed position of part.Therefore, processing efficiency is more low；Be installed position the degree of accuracy it is inadequate；Processing cost is also higher.
The content of the invention：
Weak point it is an object of the invention to solve existing bead part fixture, there is provided one kind be installed conveniently, structure
Simply, it is adapted to part volume processing, high in machining efficiency, low cost the fixture suitable for the processing of bead part.
The present invention is achieved by the following technical solutions：
A kind of fixture suitable for the processing of bead part of the invention, including chuck oil cylinder and support member, wherein, chuck oil
Cylinder is right cylindrical oil cylinder；A support member is fixed with the upper surface of chuck oil cylinder；The floating that is fixedly arranged above of support member is determined
Position block；Elastic angular locating piece is fixed with the side of support member；The center in the vertical direction of chuck oil cylinder is connected with
One pull bar；Pull bar is socketed with a tension mandrel；A spline ringfeder is socketed with the outside of tension mandrel；Outside spline ringfeder
Side is socketed bead part to be processed；Tension mandrel is socketed with a tightening piece in the one end away from chuck oil cylinder.
A kind of fixture suitable for the processing of bead part of the invention, wherein, chuck oil cylinder is in the side at lower surface
Two ear mounts are provided with face, two ear mounts are opposed along chuck oil cylinder, and a through hole is each provided with ear mount.
A kind of fixture suitable for the processing of bead part of the invention, wherein, support member is hollow right circular cylinder, and its is cylindrical
Diameter is equal with the outside diameter of chuck oil cylinder, the equal diameters of interior circular diameter and pull bar；The lower surface of support member and chuck oil
The upper surface of cylinder overlaps；The cylindrical and inner circle of support member is arranged with the cylindrical coaxial line of chuck oil cylinder.
It is of the invention it is a kind of suitable for bead part processing fixture, wherein, floating locating piece for it is some along support member outside
The locating piece of round circumferentially array；The lower surface of floating locating piece overlaps with the upper surface of support member；The upper table of floating locating piece
Face overlaps with the lower surface of bead part to be processed；Floating locating piece can vertically produce the displacement near chuck oil cylinder,
And have the trend vertically produced away from chuck oil cylinder displacement.
A kind of fixture suitable for the processing of bead part of the invention, wherein, the angular locating piece of elasticity is rectangle right prism
Elastomer block, its lower surface is overlapped with the upper surface of chuck oil cylinder, and the maximum surface of its area is intersected with support member；Flexibly positioned piece
Position away from chuck oil cylinder on the surface intersected with support member is provided with rectangular preiection.
A kind of fixture suitable for the processing of bead part of the invention, wherein, pull bar is right circular cylinder；Pull bar is near chuck
One end of oil cylinder is connected with chuck oil cylinder, and can in the vertical direction generation displacement up or down；Pull bar is away from chuck oil
One end of cylinder is provided with a screwed hole along pull bar central axis direction, and is provided with a spiral shell worked in coordination with screwed hole
Nail.
A kind of fixture suitable for the processing of bead part of the invention, wherein, tension mandrel is hollow shaft, the appearance of axis body
Face is second order ladder circle cylinder；The lower surface of tension mandrel overlaps with the upper surface of support member, cylindrical coaxial with chuck oil cylinder
Line；Cylinder diameter of the tension mandrel near one end of chuck oil cylinder is more than the one end away from chuck oil cylinder, and wraps up all of
Floating locating piece；The shaft shoulder of tension mandrel be located at bead part to be processed lower surface lower section, the upper surface of support member it is upper
Side.
A kind of fixture suitable for the processing of bead part of the invention, wherein, spline ringfeder is hollow right circular cylinder, under it
End face overlaps with the upper surface of floating locating piece, and is arranged with the cylindrical coaxial line of chuck oil cylinder；The interior circular diameter of spline ringfeder
Less outside diameter with tension mandrel is equal, the inner circle equal diameters of outside diameter and parts to be processed；Spline ringfeder
Upper surface is located at the lower section of bead part upper surface to be processed.
It is of the invention it is a kind of suitable for bead part processing fixture, wherein, tightening piece is hollow round table, its end face with card
The end face of disk oil cylinder is parallel；The cylindrical coaxial line arrangement of the cylindrical and chuck oil cylinder of tightening piece；The cavity of tightening piece is remote with pull bar
Work in coordination one end from chuck oil cylinder；Tightening piece is the less one end of outside diameter near one end of chuck oil cylinder；Tightening piece
There is an annular fastener away from being coaxially set on the end face of chuck oil cylinder, the screw thread bore dia phase of its interior circular diameter and pull bar
Deng and it is concentric, outside diameter is equal with the outside diameter of spline ringfeder；The lower surface of the annular fastener of tightening piece with
The upper surface of spline ringfeder overlaps.
The beneficial effects of the present invention are：Once it is installed and completes the angular and centralized positioning of part to be processed, and ensures zero
Part end face is effectively supported；The time work that is installed of part is shortened, machine tooling efficiency is improve；Simple structure, part dress
Card is convenient；It is adapted to the processing of part volume；A machine tool can simultaneously install several fixtures, reduce lathe and use number of units, save
Floor space and enterprises using the labor number.
Brief description of the drawings：
Fig. 1：Structural representation profile of the invention；
Fig. 2：Left view of the invention；
Fig. 3：Top view of the invention；
Fig. 4：Schematic perspective view of the invention；
In figure：1- chuck oil cylinders, 2- support members, 3- floatings locating piece, 4- elasticity angular locating piece, 5- pull bars, 6- tensioners
Mandrel, 7- splines ringfeder, 8- tightening pieces, A- bead parts to be processed.
Specific embodiment：
The present invention will be further described with reference to the accompanying drawings and detailed description：
Embodiment：A kind of fixture suitable for the processing of bead part, including chuck oil cylinder 1 and support member 2, wherein, chuck
Oil cylinder 1 is right cylindrical oil cylinder；A support member 2 is fixed with the upper surface of chuck oil cylinder 1；Support member 2 is fixedly arranged above
Floating locating piece 3；Elastic angular locating piece 4 is fixed with the side of support member 2；The center of chuck oil cylinder 1 is in side vertically
A pull bar 5 is connected up；Pull bar 5 is socketed with a tension mandrel 6；The outside of tension mandrel 6 is socketed with a spline and rises
Set 7；The outer sheath reception processing bead part A of spline ringfeder 7；Tension mandrel 6 is socketed with one in the one end away from chuck oil cylinder 1
Individual tightening piece；Chuck oil cylinder 1 is provided with two ear mounts on the side at the lower surface, and two ear mounts are along chuck oil cylinder 1 pair
Put, a through hole is each provided with ear mount；Wherein, support member 2 is hollow right circular cylinder, its outside diameter and chuck oil cylinder 1
Outside diameter it is equal, the equal diameters of interior circular diameter and pull bar 5；The lower surface of support member 2 is heavy with the upper surface of chuck oil cylinder 1
Close；The cylindrical and inner circle of support member 2 is arranged with the cylindrical coaxial line of chuck oil cylinder 1；Wherein, floating locating piece 3 is some edge branch
The locating piece of the cylindrical circumferentially array of support member 2；The lower surface of floating locating piece 3 overlaps with the upper surface of support member 2；Float and position
The upper surface of block 3 overlaps with the lower surface of bead part A to be processed；Floating locating piece 3 can be produced vertically near chuck
The displacement of oil cylinder 1, and have the trend vertically produced away from the displacement of chuck oil cylinder 1；Wherein, the angular locating piece 4 of elasticity is
Rectangle right prism elastomer block, its lower surface overlaps with the upper surface of chuck oil cylinder 1, the maximum surface of its area and the phase of support member 2
Hand over；The flexibly positioned piece of position on the surface intersected with support member 2 away from chuck oil cylinder 1 is provided with rectangular preiection；Wherein, draw
Bar 5 is right circular cylinder；Pull bar 5 is connected near one end of chuck oil cylinder 1 with chuck oil cylinder 1, and can in the vertical direction produce to
Upper or downward displacement；Pull bar 5 is provided with a screwed hole along the central axis direction of pull bar 5 away from one end of chuck oil cylinder 1, and
It is provided with a screw worked in coordination with screwed hole；Wherein, tension mandrel 6 is hollow shaft, and the outer surface of axis body is second order rank
Terraced cylinder；The lower surface of tension mandrel 6 overlaps with the upper surface of support member 2, the cylindrical coaxial line with chuck oil cylinder 1；Tensioner
Cylinder diameter of the mandrel 6 near one end of chuck oil cylinder 1 is more than the one end away from chuck oil cylinder 1, and wraps up all of floating
Locating piece 3；The shaft shoulder of tension mandrel 6 be located at bead part A to be processed lower surface lower section, the upper surface of support member 2 it is upper
Side；Wherein, spline ringfeder 7 is hollow right circular cylinder, and its lower surface overlaps with the upper surface of floating locating piece 3, and oily with chuck
The cylindrical coaxial line arrangement of cylinder 1；The interior circular diameter of spline ringfeder 7 is equal with the less outside diameter of tension mandrel 6, cylindrical straight
Footpath and the inner circle equal diameters of parts to be processed；The upper surface of spline ringfeder 7 is located under bead part A upper surfaces to be processed
Side；Wherein, tightening piece 8 is hollow round table, and its end face is parallel with the end face of chuck oil cylinder 1；The cylindrical and chuck oil cylinder of tightening piece 8
1 cylindrical coaxial line arrangement；Work in coordination the one end of the cavity of tightening piece 8 with pull bar 5 away from chuck oil cylinder 1；Tightening piece 8 is close to
One end of chuck oil cylinder 1 is the less one end of outside diameter；Tightening piece 8 has away from being coaxially set on the end face of chuck oil cylinder 1
One annular fastener, the screwed hole equal diameters of its interior circular diameter and pull bar 5 are simultaneously concentric, outside diameter and spline ringfeder
7 outside diameter is equal；The lower surface of the annular fastener of tightening piece 8 overlaps with the upper surface of spline ringfeder 7.
When using, pull bar 5 is moved by chuck oil cylinder 1, make its upper surface from chuck oil cylinder 1 be maximum displacement away from, this
When be initial position of the invention；Then bead part A to be processed is socketed in the present invention, now bead part A to be processed
Cavity surface overlapped with the outer surface of spline ringfeder 7, work in coordination；Then pull bar is made along vertical side by chuck oil cylinder 1
To, near chuck oil cylinder 1 direction displacement, now spline ringfeder 7 by tightening piece 8 by bead part A tensioners to be processed, and
Make it along tension mandrel 6 to the direction displacement near chuck oil cylinder 1, until the upper surface of contact floating locating piece 3；Now,
Complete to position the centralized positioning of bead part A to be processed and end face.
In the case where completing to position the centralized positioning of bead part A to be processed and end face, the angular locating piece 4 of elasticity
Rectangular preiection will be contacted with bead part A to be processed, be realized in the presence of elastic force to the angular fixed of bead part A to be processed
Position.
So far, the centralized positioning to bead part A to be processed, end face is completed to position and angular positioning；When to be processed prominent
After edge part A is machined, the present invention is returned into initial position, you can removed；Back and forth carry out successively, it is right just can to realize
The processing work that is installed of multiple bead part A to be processed.
Claims (9)
1. a kind of fixture suitable for the processing of bead part, including chuck oil cylinder (1) and support member (2), it is characterised in that：It is described
Chuck oil cylinder (1) is right cylindrical oil cylinder；A support member (2) is fixed with the upper surface of the chuck oil cylinder (1)；The branch
Support member (2) is fixedly arranged above floating locating piece (3)；Elastic angular locating piece is fixed with the side of the support member (2)
(4)；The center in the vertical direction of the chuck oil cylinder (1) is connected with a pull bar (5)；The pull bar (5) is socketed with
One tension mandrel (6)；A spline ringfeder (7) is socketed with the outside of the tension mandrel (6)；The spline ringfeder (7)
Outer sheath reception processing bead part (A)；The tension mandrel (6) is socketed with one and rises in the one end away from chuck oil cylinder (1)
Tight block (8).
2. a kind of fixture suitable for the processing of bead part as claimed in claim 1, it is characterised in that：The chuck oil cylinder
(1) two ear mounts are being provided with the side at lower surface, two ear mounts are opposed along chuck oil cylinder (1), respectively set in ear mount
It is equipped with a through hole.
3. a kind of fixture suitable for the processing of bead part as claimed in claim 1, it is characterised in that：The support member (2)
It is hollow right circular cylinder, its outside diameter is equal with the outside diameter of chuck oil cylinder (1), the diameter of interior circular diameter and pull bar (5)
It is equal；The lower surface of the support member (2) overlaps with the upper surface of chuck oil cylinder (1)；The cylindrical and inner circle of the support member (2)
Cylindrical coaxial line with chuck oil cylinder (1) is arranged.
4. a kind of fixture suitable for the processing of bead part as claimed in claim 1, it is characterised in that：The floating locating piece
(3) it is some locating pieces along the cylindrical circumferentially array of support member；The lower surface of the floating locating piece (3) and support member (2)
Upper surface overlap；The upper surface of the floating locating piece (3) overlaps with the lower surface of bead part (A) to be processed；It is described floating
Dynamic locating piece (3) can vertically produce the displacement near chuck oil cylinder (1), and have and vertically produce away from chuck oil
The trend of cylinder (1) displacement.
5. a kind of fixture suitable for the processing of bead part as claimed in claim 1, it is characterised in that：The elasticity is angular fixed
Position block (4) is rectangle right prism elastomer block, and its lower surface overlaps with the upper surface of chuck oil cylinder (1), the maximum surface of its area
Intersect with support member (2)；Flexibly positioned piece (4) are on the surface intersected with support member (2) away from the position of chuck oil cylinder (1)
Install and be equipped with rectangular preiection.
6. a kind of fixture suitable for the processing of bead part as claimed in claim 1, it is characterised in that：The pull bar (5) is
Right circular cylinder；The pull bar (5) is connected near one end of chuck oil cylinder (1) with chuck oil cylinder (1), and can in the vertical direction product
Raw displacement up or down；The pull bar (5) is provided with one along pull bar (5) central shaft away from one end of chuck oil cylinder (1)
The screwed hole in direction, and it is provided with a screw worked in coordination with screwed hole.
7. a kind of fixture suitable for the processing of bead part as claimed in claim 1, it is characterised in that：The tension mandrel
(6) it is hollow shaft, the outer surface of axis body is second order ladder circle cylinder；The lower surface of the tension mandrel (6) and support member (2)
Upper surface overlaps, the cylindrical coaxial line with chuck oil cylinder (1)；Circle of the tension mandrel (6) near one end of chuck oil cylinder (1)
Column diameter wraps up all of floating locating piece (3) more than the one end away from chuck oil cylinder (1)；The tension mandrel (6)
The shaft shoulder is located at the lower section of the lower surface of bead part (A) to be processed, the top of the upper surface of support member (2).
8. a kind of fixture suitable for the processing of bead part as claimed in claim 1, it is characterised in that：The spline ringfeder
(7) it is hollow right circular cylinder, its lower surface overlaps with the upper surface of floating locating piece (3), and it is cylindrical same with chuck oil cylinder (1)
Axis is arranged；The interior circular diameter of the spline ringfeder (7) is equal with the less outside diameter of tension mandrel (6), outside diameter
With the inner circle equal diameters of parts to be processed (A)；The upper surface of the spline ringfeder (7) is located on bead part (A) to be processed
The lower section of end face.
9. a kind of fixture suitable for the processing of bead part as claimed in claim 1, it is characterised in that：The tightening piece (8)
It is hollow round table, its end face is parallel with the end face of chuck oil cylinder (1)；Outside the cylindrical and chuck oil cylinder (1) of the tightening piece (8)
Circle coaxial line arrangement；Work in coordination the one end of the cavity of the tightening piece (8) with pull bar (5) away from chuck oil cylinder (1)；It is described to rise
Tight block (8) is the less one end of outside diameter near one end of chuck oil cylinder (1)；The tightening piece (8) is away from chuck oil cylinder (1)
End face on be coaxially set and have an annular fastener, the screwed hole equal diameters of its interior circular diameter and pull bar (5) and and its
With one heart, outside diameter is equal with the outside diameter of spline ringfeder (7)；The lower surface of the annular fastener of the tightening piece (8)
Upper surface with spline ringfeder (7) overlaps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611112563.5A CN106736736A (en) | 2016-12-07 | 2016-12-07 | A kind of fixture suitable for the processing of bead part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611112563.5A CN106736736A (en) | 2016-12-07 | 2016-12-07 | A kind of fixture suitable for the processing of bead part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106736736A true CN106736736A (en) | 2017-05-31 |
Family
ID=58878482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611112563.5A Pending CN106736736A (en) | 2016-12-07 | 2016-12-07 | A kind of fixture suitable for the processing of bead part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106736736A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110039349A (en) * | 2019-05-31 | 2019-07-23 | 海纳川（滨州）轻量化汽车部件有限公司 | A kind of high-precision pin hole positioning device |
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| CN200981205Y (en) * | 2006-08-22 | 2007-11-28 | 南通纵横国际股份有限公司 | Hole and end surface simultaneously pressing clamp |
| JP2008006572A (en) * | 2006-06-30 | 2008-01-17 | Shiga Yamashita:Kk | Clamp tool for casting having cylindrical hole |
| CN201516564U (en) * | 2009-09-18 | 2010-06-30 | 江苏太平洋精锻科技股份有限公司 | Conical surface lathe machining clamp for combined gears |
| CN201579500U (en) * | 2009-12-23 | 2010-09-15 | 青岛三星精锻齿轮有限公司 | Precision positioning fixture for precision processing of fine forged differential half axle gears |
| CN102189428A (en) * | 2011-04-29 | 2011-09-21 | 滁州兴达机电有限公司 | Positioning device for automatically centering pore of casting |
| CN103737372A (en) * | 2014-01-02 | 2014-04-23 | 无锡倍安杰机械科技有限公司 | Expansion sleeve linkage compression mechanism |
| CN204276948U (en) * | 2014-11-26 | 2015-04-22 | 重庆三江机械厂 | Hole type parts self-alignment cramping arrangement |
| CN206405726U (en) * | 2016-12-07 | 2017-08-15 | 宁夏工商职业技术学院（宁夏化工技工学校、宁夏机电工程学校、宁夏农业机械化学校） | The combined type fixture of bead part |
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- 2016-12-07 CN CN201611112563.5A patent/CN106736736A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008006572A (en) * | 2006-06-30 | 2008-01-17 | Shiga Yamashita:Kk | Clamp tool for casting having cylindrical hole |
| CN200981205Y (en) * | 2006-08-22 | 2007-11-28 | 南通纵横国际股份有限公司 | Hole and end surface simultaneously pressing clamp |
| CN201516564U (en) * | 2009-09-18 | 2010-06-30 | 江苏太平洋精锻科技股份有限公司 | Conical surface lathe machining clamp for combined gears |
| CN201579500U (en) * | 2009-12-23 | 2010-09-15 | 青岛三星精锻齿轮有限公司 | Precision positioning fixture for precision processing of fine forged differential half axle gears |
| CN102189428A (en) * | 2011-04-29 | 2011-09-21 | 滁州兴达机电有限公司 | Positioning device for automatically centering pore of casting |
| CN103737372A (en) * | 2014-01-02 | 2014-04-23 | 无锡倍安杰机械科技有限公司 | Expansion sleeve linkage compression mechanism |
| CN204276948U (en) * | 2014-11-26 | 2015-04-22 | 重庆三江机械厂 | Hole type parts self-alignment cramping arrangement |
| CN206405726U (en) * | 2016-12-07 | 2017-08-15 | 宁夏工商职业技术学院（宁夏化工技工学校、宁夏机电工程学校、宁夏农业机械化学校） | The combined type fixture of bead part |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110039349A (en) * | 2019-05-31 | 2019-07-23 | 海纳川（滨州）轻量化汽车部件有限公司 | A kind of high-precision pin hole positioning device |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |
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| RJ01 | Rejection of invention patent application after publication |