CN106808245B - A kind of processing tool and its manufacturing method - Google Patents
A kind of processing tool and its manufacturing method Download PDFInfo
- Publication number
- CN106808245B CN106808245B CN201710050064.6A CN201710050064A CN106808245B CN 106808245 B CN106808245 B CN 106808245B CN 201710050064 A CN201710050064 A CN 201710050064A CN 106808245 B CN106808245 B CN 106808245B
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- main body
- curved surface
- tooling main
- workpiece
- processing tool
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a kind of processing tool and its manufacturing methods, belong to processing tool field.The processing tool includes: pedestal, tooling main body and at least two support constructions, at least two support constructions are set on the base along same linear interval, tooling bottom part body is fixedly connected by least two support constructions with pedestal, the top of tooling main body is equipped with the cooperation curved surface to match with the curved surface of workpiece, multiple pin holes through tooling main body are equipped in tooling main body, pin hole and multiple screw holes, which correspond, to be arranged, and each pin hole is coaxially arranged with corresponding screw hole and is connected to, the connection bolt for being threadedly engaged with screw hole is fitted in each pin hole, each pin hole is respectively positioned between two neighboring support construction.It is fixed that the present invention solves the problems, such as that special-shaped tooling is not easy to clamp.
Description
Technical field
The invention belongs to processing tool field, in particular to a kind of processing tool and its manufacturing method.
Background technique
Using lathe workpiece is machined when, it usually needs by the universal fixture on lathe to the workpiece into
Luggage is clamping fixed, and usually with the key position of workpiece when clamping, i.e., position more demanding to size is determined as clamping
Main unthreaded hole inner wall, optical axis outer wall and plane etc. on position position, such as workpiece.
However, for certain special-shaped workpieces, since it does not have unthreaded hole inner wall, optical axis outer wall and plane, so just
Clamping can not be carried out to the workpiece using universal fixture, cause the workpiece that can not process.
Summary of the invention
In order to solve the problems, such as special-shaped workpiece be not easy to clamp it is fixed, the embodiment of the invention provides a kind of processing tool and its
Manufacturing method.The technical solution is as follows:
On the one hand, the embodiment of the invention provides a kind of processing tools, suitable for processing the work for having the strip of curved surface
Part, the curved surface extend to the other end of the workpiece from one end of the workpiece, along the length of the workpiece on the curved surface
Direction is equipped at intervals with multiple screw holes, and the processing tool includes: pedestal, tooling main body and at least two support constructions, it is described extremely
Few two support constructions are arranged on the base along same linear interval, and the tooling bottom part body passes through described at least two
Support construction is fixedly connected with the base, and the top of the tooling main body is equipped with the cooperation to match with the curved surface of the workpiece
Curved surface, the tooling main body is interior to be equipped with multiple pin holes through the tooling main body, and the pin hole and the multiple screw hole are one by one
Corresponding arrangement, and each pin hole is coaxially arranged with corresponding screw hole and is connected to, in each pin hole
It is fitted with the connection bolt for being threadedly engaged with the screw hole, each pin hole is respectively positioned on the two neighboring support construction
Between.
In a kind of implementation of the invention, guide is additionally provided in each pin hole, the guide is sleeved on described
It connects outside bolt, one end of the guide passes through the pin hole and is inserted into the limiting slot of opening setting of the screw hole, institute
It states guide and the limiting slot cooperates.
In another implementation of the invention, the other end of the guide is equipped with flanged plate, the flanged plate and institute
The bottom for stating tooling main body offsets.
In another implementation of the invention, the processing tool further include it is multiple hold down assembly, the multiple pressure
Tight component is arranged at intervals on the pedestal along the length direction of the tooling main body.
In another implementation of the invention, each described hold down assembly includes supporting element, compressing member and locking
Part, one end of the supporting element are fixedly mounted on the base, the other end of one end of the compressing member and the supporting element
It is flexibly connected, the other end of the compressing member is located at the top and bottom of the workpiece, the lock with the tooling main body
Tight part is mounted on the middle part and the pedestal of the compressing member.
In another implementation of the invention, the locking member includes clamping screw and gasket, each compression
Be equipped with through-hole on part, the pedestal be equipped with the one-to-one locking screw holes of the clamping screw, the clamping screw
Screw rod end passes through and the through-hole and is fixedly mounted in the locking screw holes, the shim clip mounted in clamping screw screw cap end and
Between the compressing member.
In another implementation of the invention, each support construction includes support plate and is arranged in the support
The stiffener plate of the two sides of plate, each stiffener plate are connect with the pedestal and corresponding support plate respectively.
On the other hand, the embodiment of the invention provides a kind of manufacturing methods of processing tool, which comprises
Fabricating tools main body blank processes cooperation primary standard of curved surface band, in the tooling on the tooling main body blank
Multiple pin holes are processed on main body blank, and cooperation curved surface is processed according to the cooperation primary standard of curved surface band, obtains tooling main body, institute
The length direction parallel interval that multiple pin holes are stated along the tooling main body is arranged；
The tooling main body is fixed on pedestal by least two support constructions, obtains processing tool, it is described at least
Two support constructions are arranged on the base along same linear interval, and each pin hole is respectively positioned on two adjacent supports
Between structure.
It is further, described that cooperation primary standard of curved surface band is processed on the tooling main body blank, comprising:
The end face milling of one end of the tooling main body blank is flat；
Process datum plane respectively in the two sides for milling flat end face, two datum planes be parallel to each other and with milling
Flat end face is vertical；
The cooperation primary standard of curved surface band is processed according to the datum plane, the cooperation primary standard of curved surface band is used for as processing
The cooperation curved surface provides machining benchmark.
It is further, described that cooperation curved surface is processed according to the cooperation primary standard of curved surface band, comprising:
Cooperation curved surface is processed according to the cooperation primary standard of curved surface band by the forming grinding wheel on planograinder.
Technical solution provided in an embodiment of the present invention has the benefit that
When processing to workpiece, firstly, workpiece is placed in tooling main body, and make curved surface and the tooling master of workpiece
The cooperation curved surface of body offsets, and then, connection bolt is inserted into pin hole from the bottom of tooling main body and is filled with the screw hole screw thread of workpiece
Match, to realize fixation of the workpiece in tooling, and then workpiece can be processed.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the structural schematic diagram of workpiece provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of processing tool provided in an embodiment of the present invention；
Fig. 3 is the cross-sectional view of processing tool provided in an embodiment of the present invention；
Fig. 4 is the cross-sectional view of workpiece provided in an embodiment of the present invention；
Fig. 5 is the flow chart of the manufacturing method of processing tool provided in an embodiment of the present invention；
Each symbol indicates that meaning is as follows in figure:
1- pedestal, 11- top plate, 12- bottom plate, 13- support construction, the first stiffening plate of 131-, the second stiffening plate of 132-, 2- work
Main body is filled, 21- cooperates curved surface, 22- pin hole, 23- connection bolt, 24- guide, 25- flanged plate, 3- support construction, 31- reinforcing rib
Plate, 32- support plate, 4- hold down assembly, 41- supporting element, 42- compressing member, 43- locking member, the tight bolt of 431-, 432- gasket,
100- workpiece, 110- curved surface, 120- screw hole, 130- limiting slot, 140- plane.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
The embodiment of the invention provides a kind of processing tools, are suitable for workpieces processing, and Fig. 1 is the structural schematic diagram of workpiece,
As shown in Figure 1, workpiece 100 is the strip workpiece with clamping face, clamping face can be curved surface 110, and curved surface 110 is from workpiece
100 one end extends to the other end of workpiece 100, and the length direction on the curved surface 110 of workpiece 100 along workpiece 100 is equipped at intervals with
Multiple screw holes 120, each screw hole 120 is respectively positioned on the middle part of curved surface 110, and the center line of each screw hole 120 both passes through curved surface 110
Arc top, the side opposite with curved surface 110 is plane 140 on workpiece 100.
Fig. 2 is the structural schematic diagram of processing tool, and processing tool includes: pedestal 1, tooling main body 2 and support construction 3, branch
Support structure 3 is arranged on pedestal 1 along same linear interval, and 2 bottom of tooling main body is fixedly connected by support construction 3 with pedestal 1,
The top of tooling main body 2 is equipped with the cooperation curved surface 21 to match with the curved surface 110 of workpiece 100, is equipped with multiple pass through in tooling main body 2
Wear the pin hole 22 (referring to Fig. 3) of tooling main body 2, pin hole 22 and multiple screw holes 120 are corresponded and arranged, and each pin hole is and respectively
Self-corresponding screw hole 120 is coaxially arranged and is connected to, and the connection for being threadedly engaged with screw hole 120 is fitted in each pin hole 22
Bolt 23, each pin hole 22 are respectively positioned between two neighboring support construction 3.
When processing to workpiece 100, firstly, workpiece 100 is placed in tooling main body 2, and make the song of workpiece 100
Face 110 and the cooperation curved surface 21 of tooling main body 2 offset, and then, connection bolt 23 are inserted into pin hole 22 from the bottom of tooling main body 2
And with 120 Screw assembly of the screw hole of workpiece 100, to realize fixation of the workpiece 100 in tooling, and then can be to workpiece
100 are processed.
In the present embodiment, tooling main body 2 can be strip structure, length direction of the support construction 3 along tooling main body 2
Arranged for interval is in tooling main body 2, so that tooling main body 2 can be effectively obtained the support of support construction 3.
In the present embodiment, pedestal 1 may include top plate 11, bottom plate 12 and multiple support constructions 13, top plate 11 and bottom plate
12 are strip plate and are arranged parallel, and top plate 11 and bottom plate 12 are fixed together by multiple support constructions 13, more
For a support construction 13 along the length direction arranged for interval of top plate 11 and bottom plate 12, each support construction 13 includes the first stiffening plate
131 and two the second stiffening plates 132, two the second stiffening plates 132 be respectively and vertically fixed at the two sides of the first stiffening plate 131.In
In above-mentioned implementation, the first stiffening plate 131 can be one piece of long slab, and two the second stiffening plates 132 are separately fixed at first and add
The two sides of strong plate 131.
In above-mentioned implementation, pedestal 1 and support construction 3 can be fixed on one by way of integrally casting shaping
It rises, to ensure that the globality of processing tool, it should be noted that in other embodiments, pedestal 1 and support construction 3 are also
It can be fixed together in other way, for example, pedestal 1 and support construction 3 are fixed together by welding,
To simplify the mode of firm banking 1 and support construction 3.
Preferably, cooperation curved surface 21 is made by shaping grinding process, and the Line contour degree of cooperation curved surface 21 is at least 0.01mm,
Surface profile is at least 0.03mm, to ensure that cooperation curved surface 21 can match with the curved surface 110 of workpiece 100, thus just
In processing tool to the positioning and clamping of workpiece 100.
With continued reference to Fig. 3, guide 24 is additionally provided in each pin hole 22, guide 24 is sleeved on outside connection bolt 23, guide 24
One end pass through pin hole 22 be inserted into screw hole 120 opening setting limiting slot 130 (referring to fig. 4) in, guide 24 and limit
Slot 130 cooperates.In above-mentioned implementation, the outer wall of guide 24 can filled with the inner wall clearance fit of limiting slot 130
Timing can first insert guide 24 to pin hole 22 and limiting slot 130 from the bottom of tooling main body 2, so as to pass through pin
Set realizes the positioning between workpiece 100 and tooling main body 2, avoid the workpiece 100 when installation connects bolt 23 occur it is unnecessary
Sliding.
Preferably, the other end of guide 24 is equipped with flanged plate 25, and flanged plate 25 and the bottom of tooling main body 2 offset.Upper
It states in implementation, when the inserting of guide 24 is into pin hole 22, flanged plate 25, which can play, limits guide 24 in pin hole 22
The effect of position, it can the depth that guide 24 is inserted into pin hole 22 is controlled by flanged plate, prevents from for workpiece 100 being lifted off cooperation song
Face 21.
It preferably, is clearance fit between guide 24 and pin hole 22, fit tolerance code name is H7/h6.Wherein H7 is pin hole
The tolerance range code name of 22 inner walls, h6 are the tolerance range code name of 24 outer wall of guide.It should be noted that between guide 24 and pin hole 22
Fit system be not limited only to above-mentioned preferred embodiment, in other embodiments, it can also be passed through between guide 24 and pin hole 22
His fit system is assembled together, such as transition fit, correspondingly, the fit tolerance generation between guide 24 and pin hole 22 at this time
Number can be H7/js6, the present invention it is without limitation.
In the present embodiment, processing tool further include it is multiple hold down assembly 4, it is multiple to hold down assembly 4 along same linear interval
It is arranged on pedestal 1, holds down assembly 4 for workpiece 100 to be pressed on processing tool, to avoids processing to workpiece 100
During, workpiece 100 slides in tooling main body 2 because connecting bolt 23 and loosening, and improves the reliability of processing tool.
In above-mentioned implementation, multiple hold down assembly 4 is arranged at intervals on pedestal 1 along the length direction of tooling main body 2,
The workpiece 100 being placed in tooling main body 2 is clamped so as to convenient.
Specifically, 4 are each held down assembly including supporting element 41, compressing member 42 and locking member 43, one end of supporting element 41
Be fixedly mounted on pedestal 1, one end of compressing member 42 is flexibly connected with the other end of supporting element 41, the other end of compressing member 42 with
Tooling main body 2 is located at the top and bottom of workpiece 100, and locking member 43 is mounted on compressing member 42 and pedestal 1, locking member 43
For making compressing member 42 offset with workpiece 100.
More specifically, locking member 43 includes clamping screw 431 and gasket 432, through-hole, bottom are equipped on each compressing member 42
Seat 1, which is equipped with, passes through through-hole and fixation with the one-to-one locking screw holes 120 of clamping screw 431, the screw rod end of clamping screw 431
It is mounted in locking screw holes 120, gasket 432 is installed between the screw cap end of clamping screw 431 and compressing member 42.Utilizing compression
When 4 workpiece pressing 100 of component, compressing member 42 is placed on workpiece 100 first, then by the screw rod end of clamping screw 431 from
It passes through, and is inserted to locking screw holes 120 in through-hole, finally by clamping screw 431 is screwed, so that clamping screw 431 passes through
Screw cap end and gasket 432 make compressing member 42 offset with workpiece 100, to realize the positioning for the 4 pairs of workpiece 100 that hold down assembly.
Referring again to Fig. 2, each support construction 3 includes the stiffener plate of support plate 32 with the two sides that support plate 32 is arranged in
31, each stiffener plate 31 is connect with pedestal 1 and corresponding support plate 32 respectively, to improve holding for support construction 3
Loading capability ensure that the reliability of processing tool.
Fig. 5 is the flow chart of the manufacturing method of processing tool, which is suitable for manufacturing above-mentioned processing tool, such as schemes
Shown in 5, which includes:
Step 101: manufacture pedestal blank processes the mounting surface for installing support construction on pedestal blank pedestal,
Obtain pedestal.
When specific implementation, mounting surface is milled out on pedestal blank by way of Milling Machining.In other embodiments, if
It is additionally provided with and holds down assembly on pedestal, then drilled out on pedestal blank for installing the spiral shell to hold down assembly by way of boring processing
Hole.
Step 102: support construction and pedestal are fixed together by manufacture support construction；
When specific implementation, support construction and pedestal can be fixed together by welding.
Step 103: fabricating tools main body blank processes cooperation primary standard of curved surface band, in tooling on tooling main body blank
Multiple pin holes are processed on main body blank, and cooperation curved surface is processed according to cooperation primary standard of curved surface band, obtains tooling main body, Duo Gexiao
Hole is arranged along the length direction parallel interval of tooling main body.
Step 103 can be achieved by the steps of:
Step 1031, fabricating tools main body blank.
Step 1032: the end face of one end of tooling main body blank being milled flat.
Step 1033: process datum plane respectively in the two sides for milling flat end face, two datum planes be parallel to each other and
It is vertical with flat end face is milled.
Specifically, the length of datum plane can be 20~40mm.
Step 1034: cooperation primary standard of curved surface band being processed according to datum plane, cooperation primary standard of curved surface band is used to match for processing
It closes curved surface and machining benchmark is provided.
Specifically, tooling main body blank is placed on CNC planer type milling machine, it is flat according to benchmark then by right-angle milling head
Face processes cooperation primary standard of curved surface band.
Step 1035: by rose cutter, using numerical control programming copy milling, according to cooperation primary standard of curved surface band process there are
The cooperation curved surface to be grinding of 0.2mm surplus.
Step 1036: by drill bit and boring cutter, processing pin hole on tooling main body blank.
Step 1037: by the forming grinding wheel on planograinder according to cooperation primary standard of curved surface band by cooperation curved surface to be grinding
It is grinding into final cooperation curved surface.
Step 104: tooling main body being fixed on pedestal by least two support constructions, obtains processing tool, at least
Two support constructions are set on the base along same linear interval, and each pin hole is respectively positioned between two neighbouring support structures.
When the processing tool by being produced by this manufacturing method processes workpiece, firstly, workpiece is placed on
In tooling main body, and the curved surface of workpiece and the cooperation curved surface of tooling main body is made to offset, then, bolt will be connected from tooling main body
Pin hole and the screw hole Screw assembly with workpiece are inserted into bottom, to realize fixation of the workpiece in tooling, and then can be to work
Part is processed.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of processing tool, which is characterized in that suitable for processing the workpiece for having the strip of curved surface, the curved surface is from described
One end of workpiece extends to the other end of the workpiece, and the length direction on the curved surface along the workpiece is equipped at intervals with multiple spiral shells
Hole, the processing tool include: pedestal, tooling main body and at least two support constructions, and at least two support construction is along same
One straight line is arranged at intervals on the pedestal, and the tooling bottom part body passes through at least two support construction and the pedestal
It is fixedly connected, the top of the tooling main body is equipped with the cooperation curved surface to match with the curved surface of the workpiece, the tooling main body
Interior to be equipped with multiple pin holes through the tooling main body, the pin hole and the multiple screw hole, which correspond, to be arranged, and each institute
It is coaxially arranged with corresponding screw hole and be connected to state pin hole, be fitted in each pin hole for the spiral shell
The connection bolt that hole is threadedly engaged, each pin hole are respectively positioned between the two neighboring support construction；
Guide is additionally provided in each pin hole, the guide is sleeved on outside the connection bolt, and one end of the guide passes through
The pin hole is inserted into the limiting slot of opening setting of the screw hole, and the guide and the limiting slot cooperate；
The other end of the guide is equipped with flanged plate, and the flanged plate and the bottom of the tooling main body offset.
2. processing tool according to claim 1, which is characterized in that the processing tool further include it is multiple hold down assembly,
The multiple length direction to hold down assembly along the tooling main body is arranged at intervals on the pedestal.
3. processing tool according to claim 2, which is characterized in that each described hold down assembly includes supporting element, pressure
One end of the compressing member and the support on the base is fixedly mounted in tight part and locking member, one end of the supporting element
The other end of part is flexibly connected, and the other end of the compressing member is located at the top and bottom of the workpiece with the tooling main body
Portion, the locking member are mounted on the middle part and the pedestal of the compressing member.
4. processing tool according to claim 3, which is characterized in that the locking member includes clamping screw and gasket, often
Be equipped with through-hole on a compressing member, the pedestal be equipped with the one-to-one locking screw holes of the clamping screw, it is described
The screw rod end of clamping screw passes through the through-hole and is fixedly mounted in the locking screw holes, and the shim clip is mounted in clamping screw
Screw cap end and the compressing member between.
5. processing tool according to claim 1, which is characterized in that each support construction includes support plate and setting
Stiffener plate in the two sides of the support plate, each stiffener plate respectively with the pedestal and corresponding branch
Fagging connection.
6. a kind of manufacturing method of processing tool described in claim 1, which is characterized in that the described method includes:
Fabricating tools main body blank processes cooperation primary standard of curved surface band, in the tooling main body on the tooling main body blank
Multiple pin holes are processed on blank, and cooperation curved surface is processed according to the cooperation primary standard of curved surface band, obtains tooling main body, it is described more
A pin hole is arranged along the length direction parallel interval of the tooling main body；
The tooling main body is fixed on pedestal by least two support constructions, obtains processing tool, described at least two
Support construction is arranged on the base along same linear interval, and each pin hole is respectively positioned on two adjacent support constructions
Between.
7. manufacturing method according to claim 6, which is characterized in that described process on the tooling main body blank is matched
Close primary standard of curved surface band, comprising:
The end face milling of one end of the tooling main body blank is flat；
Process datum plane respectively in the two sides for milling flat end face, two datum planes be parallel to each other and with mill it is flat
End face is vertical；
The cooperation primary standard of curved surface band is processed according to the datum plane, the cooperation primary standard of curved surface band is used for as described in processing
Curved surface is cooperated to provide machining benchmark.
8. manufacturing method according to claim 6, which is characterized in that described to be processed according to the cooperation primary standard of curved surface band
Cooperate curved surface, comprising:
Cooperation curved surface is processed according to the cooperation primary standard of curved surface band by the forming grinding wheel on planograinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710050064.6A CN106808245B (en) | 2017-01-23 | 2017-01-23 | A kind of processing tool and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710050064.6A CN106808245B (en) | 2017-01-23 | 2017-01-23 | A kind of processing tool and its manufacturing method |
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| Publication Number | Publication Date |
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| CN106808245A CN106808245A (en) | 2017-06-09 |
| CN106808245B true CN106808245B (en) | 2019-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710050064.6A Active CN106808245B (en) | 2017-01-23 | 2017-01-23 | A kind of processing tool and its manufacturing method |
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| CN (1) | CN106808245B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108098382A (en) * | 2017-11-13 | 2018-06-01 | 武汉船用机械有限责任公司 | The clamp for machining and processing method of a kind of strip-shaped work suitable for the non-full circle in section |
| JP2020151797A (en) * | 2019-03-19 | 2020-09-24 | オークマ株式会社 | Work fixing jig |
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| JP2004154821A (en) * | 2002-11-06 | 2004-06-03 | Honda Motor Co Ltd | Workpiece clamping device |
| CN201907047U (en) * | 2010-11-01 | 2011-07-27 | 株洲南方燃气轮机成套制造安装有限公司 | Clamp for turbine blade and grinding machine comprising same |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106808245A (en) | 2017-06-09 |
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