CN110280791A - A kind of thin and long shafts part turning clamp - Google Patents
A kind of thin and long shafts part turning clamp Download PDFInfo
- Publication number
- CN110280791A CN110280791A CN201810222983.1A CN201810222983A CN110280791A CN 110280791 A CN110280791 A CN 110280791A CN 201810222983 A CN201810222983 A CN 201810222983A CN 110280791 A CN110280791 A CN 110280791A
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- Prior art keywords
- bearing
- nut
- thin
- tail stock
- cutting ferrule
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- 238000005520 cutting process Methods 0.000 claims abstract description 48
- 238000009434 installation Methods 0.000 claims abstract description 44
- 238000005336 cracking Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000008602 contraction Effects 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B23/00—Tailstocks; Centres
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention belongs to machine industries, it is related to the processing of thin and long shafts part, specially a kind of thin and long shafts part turning clamp, it is characterised by comprising: general barrel of tail stock, big lantern ring, small lantern ring, sleeve nut, end face nut, screw, gasket, bearing installation axle, part cutting ferrule, alignment bearing and thrust bearing, the general barrel of tail stock, big lantern ring, small lantern ring, sleeve nut, end face nut, screw, gasket, bearing installation axle, part cutting ferrule, alignment bearing and thrust bearing contact with each other to form fixture entirety.
Description
Technical field
The invention belongs to Aeronautics and Astronautics manufacturings, are related to the processing of thin and long shafts part, specially a kind of thin and long shafts
Accessory turning fixture.
Background technique
In the manufacturings such as Aeronautics and Astronautics, automobile, there are a large amount of thin and long shafts parts, when such part draw ratio
After 30, difficulty of processing is in significantly to increase.Conventional Machining of Shaft-type Parts mode be on center lathe using chuck and
Top " one top of a folder " mode is processed, and when major diameter is smaller, this processing method does not embody obvious shortcoming, but when length
When diameter is bigger after (as more than 30), under the influence of the pressure of " folder one pushes up " mode, part machining deformation is obvious, and part goes out
It is now bent, " waist drum " shape feature occurs in part after processing, and machining accuracy is difficult to ensure.To improve processing quality, existing improvement
Measure includes increasing follow-rest, using the modes such as double-pole vehicle instead, or being realized in numerically controlled lathe using ANSYS mathematical analysis modeling
The modes such as real-time compensation, or reduce processing efficiency by experience technician very rich and guarantee, it is all to solve such as with upper type
What improves the workpiece bending deformed measure of big L/D ratio.It how to be inherently eliminated the clamping deformation of such part, is not obtain
To what is effectively solved.
Summary of the invention
In view of the deficiency of the prior art, the present invention provides a kind of thin and long shafts part turning clamps.
A kind of thin and long shafts part turning clamp, characterized by comprising: general barrel of tail stock, big lantern ring, small lantern ring, set
Cylinder nut, end face nut, screw, gasket, bearing installation axle, part cutting ferrule, alignment bearing and thrust bearing, the general tailstock
Sleeve, big lantern ring, small lantern ring, sleeve nut, end face nut, screw, gasket, bearing installation axle, part cutting ferrule, alignment bearing and
Thrust bearing contacts with each other to form fixture entirety.
The barrel of tail stock characterized by further comprising: for tail stock cooperation periphery, for and alignment bearing,
The inner headed face of thrust bearing cooperation, the internal screw thread for cooperating with sleeve nut, the screw thread for being connected with tail stock handle
Hole.
The periphery diameter is 75-85mm.
The sleeve nut characterized by further comprising: the barrel of tail stock external screw thread for cooperating with barrel of tail stock is used for
Sleeve nut's card slot of sleeve nut's installation.
The end face nut characterized by further comprising: bearing for cooperating with bearing installation axle installs internal screw thread.
Characterized by further comprising end face nut external screw threads for cooperating with end face nut for the bearing installation axle, use
In the part cutting ferrule conical surface cooperated with part cutting ferrule, threaded hole for being connected with screw, for and alignment bearing, thrust bearing
The periphery of cooperation.
Described its feature of part cutting ferrule further include: the bearing for cooperating with bearing installation axle installs the conical surface, for closing up
Fastenings cracks, the step card slot for cooperating with part top bar.By tightening end face nut, make part cutting ferrule epicone
Face generates radial contraction, realizes the clamping of part.
The effect of the alignment bearing is that rotating accuracy with higher is pressed from both sides in guarantee, and the effect of thrust bearing is fixture
Axial force is born when reverse drawing part.
The part cutting ferrule inner diameter size can be designed according to diameter of part to be mounted, to adapt to the part of different-diameter
Clamping.Card slot diameter is 0.5-1mm bigger than interior circular diameter, to play the role of cooperating fastenings with part step.
The effect of the big lantern ring, small lantern ring is that the inner and outer ring of alignment bearing and thrust bearing is protected not generate axial position
It moves, improves bearing life, while must assure that lantern ring both ends of the surface meet higher depth of parallelism requirement.
Beneficial effects of the present invention:
1. a kind of thin and long shafts part turning clamp of the invention patent, structure is simple, easy to use, by tradition " one top of a folder "
Revolution turning process change be " one folder one draw " new way, realize the revolution processing of big L/D ratio class part, improve and pass
Due to deforming bring difficult processing problem when system " one top of a folder " processing big L/D ratio class part.
2. tool provided by the invention instead of the Finial device in common engine lathe tailstock, is realized a tradition " folder one
The revolution turning process change on top " is the new way of " folder one is drawn ", realizes the revolution processing of big L/D ratio class part.
Appended drawing reference
1. general barrel of tail stock, 2. big lantern rings, 3. small lantern rings, 4. sleeve nuts, 5. end face nuts, 6. screws, 7. gaskets, 8. axis
Hold installation axle, 9. part cutting ferrules, 10. alignment bearings, 11. thrust bearings, 12. peripheries, 13. inner headed faces, in 14. sleeve nuts
Screw thread, 15. threaded holes, 16. barrel of tail stock external screw threads, 17. sleeve nut's card slots, 18. bearings install internal screw thread, 19. ends
Face nut external screw thread, the 20. part cutting ferrule conical surfaces, 21. threaded holes, 22. peripheries, 23. bearings installation conical surface-conical surface, 24. are opened
Seam, 25. step card slots, circular diameter, 27. tail stocks, 28. parts, 29. part steps, 30. lathe chucks in 26..
Detailed description of the invention
Fig. 1 is a kind of thin and long shafts part turning clamp composition schematic diagram of the invention；
Fig. 2 is a kind of barrel of tail stock schematic diagram of thin and long shafts part turning clamp of the invention；
Fig. 3 is a kind of size lantern ring left view of thin and long shafts part turning clamp of the invention；
Fig. 4 is a kind of size lantern ring top view of thin and long shafts part turning clamp of the invention；
Fig. 5 is a kind of sleeve nut's left view of thin and long shafts part turning clamp of the invention；
Fig. 6 is a kind of sleeve nut's top view of thin and long shafts part turning clamp of the invention；
Fig. 7 is a kind of structural schematic diagram of the end face nut of thin and long shafts part turning clamp of the invention；
Fig. 8 is a kind of structural schematic diagram of the end face nut of thin and long shafts part turning clamp of the invention；
Fig. 9 is a kind of top view of the end face nut of thin and long shafts part turning clamp of the invention；
Figure 10 is a kind of bearing installation axle structural schematic diagram of thin and long shafts part turning clamp of the invention；
Figure 11 is a kind of part cutting ferrule top view of thin and long shafts part turning clamp of the invention；
Figure 12 is a kind of part cutting ferrule left view of thin and long shafts part turning clamp of the invention；
Figure 13 is a kind of schematic diagram of thin and long shafts part turning clamp of the invention on lathe after clamping parts.
Specific embodiment:
Embodiment 1:
A kind of thin and long shafts part turning clamp, characterized by comprising: general barrel of tail stock 1, big lantern ring 2, small lantern ring 3, set
Cylinder nut 4, end face nut 5, screw 6, gasket 7, bearing installation axle 8, part cutting ferrule 9, alignment bearing 10 and thrust bearing 11, institute
State general barrel of tail stock 1, big lantern ring 2, small lantern ring 3, sleeve nut 4, end face nut 5, screw 6, gasket 7, bearing installation axle 8,
Part cutting ferrule 9, alignment bearing 10 and thrust bearing 11 contact with each other to form fixture entirety.
Embodiment 2:
A kind of thin and long shafts part turning clamp, characterized by comprising: general barrel of tail stock 1, big lantern ring 2, small lantern ring 3, set
Cylinder nut 4, end face nut 5, screw 6, gasket 7, bearing installation axle 8, part cutting ferrule 9, alignment bearing 10 and thrust bearing 11, institute
State general barrel of tail stock 1, big lantern ring 2, small lantern ring 3, sleeve nut 4, end face nut 5, screw 6, gasket 7, bearing installation axle 8,
Part cutting ferrule 9, alignment bearing 10 and thrust bearing 11 contact with each other to form fixture entirety.
The barrel of tail stock 1 characterized by further comprising: for the periphery 12 of tail stock cooperation, be used for and centration axis
The inner headed face 13 of the cooperation of 10, thrust bearing 11 is held, the internal screw thread 14 for cooperating with sleeve nut 4 is used for and tail stock hand
The threaded hole 15 of handle connection.
Embodiment 3:
A kind of thin and long shafts part turning clamp, characterized by comprising: general barrel of tail stock 1, big lantern ring 2, small lantern ring 3, set
Cylinder nut 4, end face nut 5, screw 6, gasket 7, bearing installation axle 8, part cutting ferrule 9, alignment bearing 10 and thrust bearing 11, institute
State general barrel of tail stock 1, big lantern ring 2, small lantern ring 3, sleeve nut 4, end face nut 5, screw 6, gasket 7, bearing installation axle 8,
Part cutting ferrule 9, alignment bearing 10 and thrust bearing 11 contact with each other to form fixture entirety.
The barrel of tail stock 1 characterized by further comprising: for the periphery 12 of tail stock cooperation, be used for and centration axis
The inner headed face 13 of the cooperation of 10, thrust bearing 11 is held, the internal screw thread 14 for cooperating with sleeve nut 4 is used for and tail stock hand
The threaded hole 15 of handle connection.
Embodiment 4:
A kind of thin and long shafts part turning clamp, characterized by comprising: general barrel of tail stock 1, big lantern ring 2, small lantern ring 3, set
Cylinder nut 4, end face nut 5, screw 6, gasket 7, bearing installation axle 8, part cutting ferrule 9, alignment bearing 10 and thrust bearing 11, institute
State general barrel of tail stock 1, big lantern ring 2, small lantern ring 3, sleeve nut 4, end face nut 5, screw 6, gasket 7, bearing installation axle 8,
Part cutting ferrule 9, alignment bearing 10 and thrust bearing 11 contact with each other to form fixture entirety.
The barrel of tail stock 1 characterized by further comprising: for the periphery 12 of tail stock cooperation, be used for and centration axis
The inner headed face 13 of the cooperation of 10, thrust bearing 11 is held, the internal screw thread 14 for cooperating with sleeve nut 4 is used for and tail stock hand
The threaded hole 15 of handle connection.
12 diameter of periphery is 75-85mm.
The sleeve nut 4 characterized by further comprising barrel of tail stock external screw thread 16 for cooperating with barrel of tail stock 1,
The sleeve nut's card slot 17 installed for sleeve nut 4.
The end face nut 5 characterized by further comprising: bearing for cooperating with bearing installation axle 8 installs internal screw thread
18。
Characterized by further comprising end face nut external screw threads for cooperating with end face nut 5 for the bearing installation axle 8
19, the part cutting ferrule conical surface 20 for cooperating with part cutting ferrule 9, the threaded hole 21 for connecting with screw 6 is used for and centration axis
Hold the periphery 22 of the cooperation of 10, thrust bearing 11.
Embodiment 5:
A kind of thin and long shafts part turning clamp, characterized by comprising: general barrel of tail stock 1, big lantern ring 2, small lantern ring 3, set
Cylinder nut 4, end face nut 5, screw 6, gasket 7, bearing installation axle 8, part cutting ferrule 9, alignment bearing 10 and thrust bearing 11, institute
State general barrel of tail stock 1, big lantern ring 2, small lantern ring 3, sleeve nut 4, end face nut 5, screw 6, gasket 7, bearing installation axle 8,
Part cutting ferrule 9, alignment bearing 10 and thrust bearing 11 contact with each other to form fixture entirety.
The barrel of tail stock 1 characterized by further comprising: for the periphery 12 of tail stock cooperation, be used for and centration axis
The inner headed face 13 of the cooperation of 10, thrust bearing 11 is held, the internal screw thread 14 for cooperating with sleeve nut 4 is used for and tail stock hand
The threaded hole 15 of handle connection.
12 diameter of periphery is 75-85mm.
The sleeve nut 4 characterized by further comprising barrel of tail stock external screw thread 16 for cooperating with barrel of tail stock 1,
The sleeve nut's card slot 17 installed for sleeve nut 4.
The end face nut 5 characterized by further comprising: bearing for cooperating with bearing installation axle 8 installs internal screw thread
18。
Characterized by further comprising end face nut external screw threads for cooperating with end face nut 5 for the bearing installation axle 8
19, the part cutting ferrule conical surface 20 for cooperating with part cutting ferrule 9, the threaded hole 21 for connecting with screw 6 is used for and centration axis
Hold the periphery 22 of the cooperation of 10, thrust bearing 11.
Described its feature of part cutting ferrule 9 further include: the bearing for cooperating with bearing installation axle 8 installs the conical surface 23, is used for
Closing in fastenings 28 cracks 24, the step card slot 25 for cooperating with 28 top bar of part.By tightening end face nut 5,
So that the conical surface 23 on part cutting ferrule 9 is generated radial contraction, realizes the clamping of part 28.
Embodiment 6:
A kind of thin and long shafts part turning clamp, characterized by comprising: general barrel of tail stock 1, big lantern ring 2, small lantern ring 3, set
Cylinder nut 4, end face nut 5, screw 6, gasket 7, bearing installation axle 8, part cutting ferrule 9, alignment bearing 10 and thrust bearing 11, institute
State general barrel of tail stock 1, big lantern ring 2, small lantern ring 3, sleeve nut 4, end face nut 5, screw 6, gasket 7, bearing installation axle 8,
Part cutting ferrule 9, alignment bearing 10 and thrust bearing 11 contact with each other to form fixture entirety.
The barrel of tail stock 1 characterized by further comprising: for the periphery 12 of tail stock cooperation, be used for and centration axis
The inner headed face 13 of the cooperation of 10, thrust bearing 11 is held, the internal screw thread 14 for cooperating with sleeve nut 4 is used for and tail stock hand
The threaded hole 15 of handle connection.
12 diameter of periphery is 75-85mm.
The sleeve nut 4 characterized by further comprising barrel of tail stock external screw thread 16 for cooperating with barrel of tail stock 1,
The sleeve nut's card slot 17 installed for sleeve nut 4.
The end face nut 5 characterized by further comprising: bearing for cooperating with bearing installation axle 8 installs internal screw thread
18。
Characterized by further comprising end face nut external screw threads for cooperating with end face nut 5 for the bearing installation axle 8
19, the part cutting ferrule conical surface 20 for cooperating with part cutting ferrule 9, the threaded hole 21 for connecting with screw 6 is used for and centration axis
Hold the periphery 22 of the cooperation of 10, thrust bearing 11.
Described its feature of part cutting ferrule 9 further include: the bearing for cooperating with bearing installation axle 8 installs the conical surface 23, is used for
Closing in fastenings 28 cracks 24, the step card slot 25 for cooperating with 28 top bar of part.By tightening end face nut 5,
So that the conical surface 23 on part cutting ferrule 9 is generated radial contraction, realizes the clamping of part 28.
The effect of the alignment bearing 10 is that rotating accuracy with higher is pressed from both sides in guarantee, and the effect of thrust bearing 11 is
Axial force is born when fixture reverse drawing part 28.
26 size of circular diameter can be designed according to diameter of part to be mounted in the part cutting ferrule 9, to adapt to different-diameter
Parts fixation.25 diameter of card slot is 0.5-1mm bigger than interior circular diameter 26, to play the work for cooperating fastenings with part step 29
With.
Embodiment 7:
A kind of thin and long shafts part turning clamp, characterized by comprising: general barrel of tail stock 1, big lantern ring 2, small lantern ring 3, set
Cylinder nut 4, end face nut 5, screw 6, gasket 7, bearing installation axle 8, part cutting ferrule 9, alignment bearing 10 and thrust bearing 11, institute
State general barrel of tail stock 1, big lantern ring 2, small lantern ring 3, sleeve nut 4, end face nut 5, screw 6, gasket 7, bearing installation axle 8,
Part cutting ferrule 9, alignment bearing 10 and thrust bearing 11 contact with each other to form fixture entirety.
The barrel of tail stock 1 characterized by further comprising: for the periphery 12 of tail stock cooperation, be used for and centration axis
The inner headed face 13 of the cooperation of 10, thrust bearing 11 is held, the internal screw thread 14 for cooperating with sleeve nut 4 is used for and tail stock hand
The threaded hole 15 of handle connection.
12 diameter of periphery is 75-85mm.
The sleeve nut 4 characterized by further comprising barrel of tail stock external screw thread 16 for cooperating with barrel of tail stock 1,
The sleeve nut's card slot 17 installed for sleeve nut 4.
The end face nut 5 characterized by further comprising: bearing for cooperating with bearing installation axle 8 installs internal screw thread
18。
Characterized by further comprising end face nut external screw threads for cooperating with end face nut 5 for the bearing installation axle 8
19, the part cutting ferrule conical surface 20 for cooperating with part cutting ferrule 9, the threaded hole 21 for connecting with screw 6 is used for and centration axis
Hold the periphery 22 of the cooperation of 10, thrust bearing 11.
Described its feature of part cutting ferrule 9 further include: the bearing for cooperating with bearing installation axle 8 installs the conical surface 23, is used for
Closing in fastenings 28 cracks 24, the step card slot 25 for cooperating with 28 top bar of part.By tightening end face nut 5,
So that the conical surface 23 on part cutting ferrule 9 is generated radial contraction, realizes the clamping of part 28.
The effect of the alignment bearing 10 is that rotating accuracy with higher is pressed from both sides in guarantee, and the effect of thrust bearing 11 is
Axial force is born when fixture reverse drawing part 28.
26 size of circular diameter can be designed according to diameter of part to be mounted in the part cutting ferrule 9, to adapt to different-diameter
Parts fixation.25 diameter of card slot is 0.5-1mm bigger than interior circular diameter 26, to play the work for cooperating fastenings with part step 29
With.
The effect of the big lantern ring 2, small lantern ring 3 is that alignment bearing 10 and the inner and outer ring of thrust bearing 11 is protected not to generate
Axial displacement improves bearing life, while must assure that lantern ring both ends of the surface meet higher depth of parallelism requirement.
Claims (7)
1. a kind of thin and long shafts part turning clamp, characterized by comprising: general barrel of tail stock (1), big lantern ring (2), small set
Ring (3), sleeve nut (4), end face nut (5), screw (6), gasket (7), bearing installation axle (8), part cutting ferrule (9), centering
Bearing (10) and thrust bearing (11), the general barrel of tail stock (1), big lantern ring (2), small lantern ring (3), sleeve nut (4), end
Face nut (5), screw (6), gasket (7), bearing installation axle (8), part cutting ferrule (9), alignment bearing (10) and thrust bearing
(11) it contacts with each other to form fixture entirety.
2. a kind of thin and long shafts part turning clamp according to claim 1, it is characterised in that: the barrel of tail stock (1) is also
It include: the periphery (12) for tail stock cooperation, the inner headed face for cooperating with alignment bearing (10), thrust bearing (11)
(13), for the internal screw thread (14) with sleeve nut (4) cooperation, the threaded hole (15) for being connected with tail stock handle.
3. a kind of thin and long shafts part turning clamp according to claim 1, it is characterised in that: periphery (12) diameter
For 75-85mm.
4. a kind of thin and long shafts part turning clamp according to claim 1, it is characterised in that: the sleeve nut (4) is also
It include: the sleeve nut for the barrel of tail stock external screw thread (16) with barrel of tail stock (1) cooperation, for sleeve nut (4) installation
Card slot (17).
5. a kind of thin and long shafts part turning clamp according to claim 1, it is characterised in that: the end face nut (5) is also
It include: for bearing installation internal screw thread (18) with bearing installation axle (8) cooperation.
6. a kind of thin and long shafts part turning clamp according to claim 1, it is characterised in that: the bearing installation axle (8)
Further include: for the end face nut external screw thread (19) with end face nut (5) cooperation, for the part with part cutting ferrule (9) cooperation
The cutting ferrule conical surface (20), for the threaded hole (21) with screw (6) connection, for matching with alignment bearing (10), thrust bearing (11)
The periphery (22) of conjunction.
7. a kind of thin and long shafts part turning clamp according to claim 1, it is characterised in that: the part cutting ferrule (9) is also
It include: for the bearing installation conical surface (23) with bearing installation axle (8) cooperation, for cracking for the fastenings that closes up (28)
(24), for the step card slot (25) with the cooperation of part (28) top bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810222983.1A CN110280791A (en) | 2018-03-19 | 2018-03-19 | A kind of thin and long shafts part turning clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810222983.1A CN110280791A (en) | 2018-03-19 | 2018-03-19 | A kind of thin and long shafts part turning clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110280791A true CN110280791A (en) | 2019-09-27 |
Family
ID=68000921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810222983.1A Pending CN110280791A (en) | 2018-03-19 | 2018-03-19 | A kind of thin and long shafts part turning clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110280791A (en) |
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| US20030150304A1 (en) * | 2002-02-13 | 2003-08-14 | Morgan Brian Paul | Collet assembly for holding and ejecting a workpiece |
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| CN201880929U (en) * | 2010-11-30 | 2011-06-29 | 上海航天精密机械研究所 | Turning and tensioning device for slender shaft type parts |
| CN202052951U (en) * | 2011-03-29 | 2011-11-30 | 康凤明 | Multifunctional tailstock for horizontal lathe |
| CN202825254U (en) * | 2012-06-26 | 2013-03-27 | 韶关市第二技师学院 | Turning fixture for slender shaft |
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| CN205325203U (en) * | 2015-12-09 | 2016-06-22 | 贵州红林机械有限公司 | Special clamping head of general car processing slender axles |
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| CN106001615A (en) * | 2016-06-22 | 2016-10-12 | 成都飞机工业（集团）有限责任公司 | Device and method for machining oversized shaft part with high length-diameter ratio |
| CN208146944U (en) * | 2018-03-19 | 2018-11-27 | 成都飞机工业（集团）有限责任公司 | A kind of thin and long shafts part turning clamp |
-
2018
- 2018-03-19 CN CN201810222983.1A patent/CN110280791A/en active Pending
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| CN208146944U (en) * | 2018-03-19 | 2018-11-27 | 成都飞机工业（集团）有限责任公司 | A kind of thin and long shafts part turning clamp |
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