CN106736679A - The special flat-nose pliers of the axle of Digit Control Machine Tool four - Google Patents
The special flat-nose pliers of the axle of Digit Control Machine Tool four Download PDFInfo
- Publication number
- CN106736679A CN106736679A CN201611100855.7A CN201611100855A CN106736679A CN 106736679 A CN106736679 A CN 106736679A CN 201611100855 A CN201611100855 A CN 201611100855A CN 106736679 A CN106736679 A CN 106736679A
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- China
- Prior art keywords
- screw mandrel
- nose pliers
- flat
- jaw
- moving jaw
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- 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.)
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Classifications
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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
- B23Q3/066—Bench vices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The present invention relates to a kind of special flat-nose pliers of axle of Digit Control Machine Tool four, flat-nose pliers pedestal, moving jaw I, moving jaw II and screw mandrel, slideway and screw mandrel mounting seat are additionally provided with flat-nose pliers pedestal, screw mandrel is through screw mandrel mounting seat and is arranged in screw mandrel mounting seat, two sliding nuts are installed on screw mandrel, sliding nut top is provided with pressing plate, the end of pressing plate is connected by screw with screw mandrel mounting seat, moving jaw I and moving jaw II are sleeved on pressing plate and slideway, moving jaw I, the side of moving jaw II is connected with two sliding nuts respectively, jaw plate I is also equipped with the end face of moving jaw I, jaw plate II is also equipped with the end face of moving jaw II, jaw plate I, the centering mouthful I of mutual cooperation is provided with the middle part of jaw plate II, centering mouthful II, hand of spiral on the upper semisection and lower semisection of screw mandrel is opposite.The present invention has alignment function, and installation and debugging are simple and convenient, high working efficiency, and the impurity such as iron filings of the present invention results in blockage in being difficult to fall into parts.
Description
Technical field
The present invention relates to a kind of universal fixturing, the more particularly to a kind of special flat-nose pliers of axle of Digit Control Machine Tool four.
Background technology
Flat-nose pliers is also referred to as vice, is frequency of use one kind higher in the equipment such as plain-milling machine, CNC milling machine and drilling machine
Universal fixturing.Because flat-nose pliers is easy for installation, using simple, can clamping parts scope it is wide, be indispensable in machining
Aid.But with continuing to develop for process technology, flat-nose pliers is in the axle of Digit Control Machine Tool four（Rotary table）On gradually open
Beginning uses, and because rotary table has the centre of gyration, therefore also requires that possess alignment function to flat-nose pliers, and at present on the market
Four axle flat-nose pliers species it is more, specific aim is not strong, therefore there is also some shortcomings in use, specific as follows：
1. flat-nose pliers is not for the Center alignment function of rotary table.Pacify on the axle rotary table of Digit Control Machine Tool four
A common flat-nose pliers is filled, can be to complete a kind of all flows of the processing of part, but if processing variety classes part
When, then needing to reset the elements of a fix of part, the symmetrical centre of part there occurs change, associated flat-nose pliers
Installation site will also be adjusted together, and this brings certain workload to operator, and in the axle rotary table of Digit Control Machine Tool four（YZ
Plane）On carry out the installation and debugging of flat-nose pliers more than on the common workbench of X/Y plane difficulty it is much larger.
2. at this moment sliding nut design can form a groove in the movement of flat-nose pliers center in the middle of vice, and iron is cut and is easy to
The inside is fallen into, is resulted in blockage.
The content of the invention
The technical problem to be solved in the present invention is：A kind of special flat mouth of axle of Digit Control Machine Tool four with alignment function is provided
Pincers, solve because flat-nose pliers installs complicated without alignment function present in above-mentioned prior art, debug time problem long,
Groove is not offered in the middle of flat-nose pliers simultaneously, the generation for blocking can be avoided.
Solving the technical scheme of above-mentioned technical problem is：A kind of special flat-nose pliers of the axle of Digit Control Machine Tool four, including flat-nose pliers base
Seat, moving jaw I, moving jaw II and screw mandrel, are provided with the opening for mounting screw on the flat-nose pliers pedestal, described
Slideway and two screw mandrel mounting seats are additionally provided with flat-nose pliers pedestal, slideway is located between two screw mandrel mounting seats, described silk
Bar is arranged in screw mandrel mounting seat through screw mandrel mounting seat and by bearing, and sliding nut I, silk are provided with the upper semisection of screw mandrel
Sliding nut II is installed, sliding nut I and the top of sliding nut II are provided with pressing plate, and the end of pressing plate leads on the lower semisection of bar
Cross screw to be connected with screw mandrel mounting seat, described moving jaw I and moving jaw II is sleeved on pressing plate and slideway, moving jaw
I side is connected with sliding nut I, and the side of moving jaw II is connected with sliding nut II, also pacifies on the end face of moving jaw I
Equipped with jaw plate I, jaw plate I is provided with centering mouthful I on middle part, and jaw plate II, jaw are also equipped with the end face of moving jaw II
The centering mouthful II coordinated with centering mouthful I, described sliding nut I, sliding nut II to flat-nose pliers pedestal are provided with the middle part of plate II
The distance of central point is equal, and the hand of spiral on the upper semisection and lower semisection of the screw mandrel is conversely, other geometric parameters of screw thread
All same.
Screw mandrel mounting seat outside is extended at described screw mandrel two ends, and screw mandrel two ends are mounted on corner screw socket, corner spiral shell
Mouth is simultaneously locked on screw mandrel by pin.
Described bearing is disposed with two, and the outer back-up ring of bearing is additionally provided between two bearings.
Described bearing is disposed with two, and axial end cap is provided with the bearing of screw mandrel end.
Described centering mouthful I is identical with the shape of centering mouthful II, and centering mouthful I and centering mouthful II are circular arc opening or saw
Tooth side V-arrangement opening.
Described sliding nut I and the cross sectional shape of sliding nut II are the rectangles with boss.
Due to using said structure, the present invention has the advantages that：
1. circular arc centering mouthful I is provided with the middle part of jaw plate of the present invention I（R6mm）, it is provided with the middle part of jaw plate II and centering mouthful I
The circular arc centering mouthful II of cooperation（R6mm）, centering mouthful I and centering mouthful II play centering for the correction of clamping Φ 12mm cylindrical rods
The effect of correction.Clamping of the part on flat-nose pliers can realize alignment function, for installing and using for square symmetric shape part
Facilitate the most, when the size specification of part changes, it is no longer necessary to adjust the installation site of flat-nose pliers, shorten installation and adjust
The whole time, improve production efficiency.
2. the present invention is provided with a monoblock pressing plate in sliding nut I and the top of sliding nut II, moving jaw pressing plate with
Moved between pedestal, without hole slot in the middle of pressing plate, during production, the impurity such as iron filings causes to block up in being difficult to fall into parts
Plug, whole flat-nose pliers is easy to clean.
3. the two sides of moving jaw of the present invention are fixedly connected with sliding nut, and stability is more preferable.
4. the two ends corner screw socket of screw mandrel of the present invention can be used flat mouth Pincers with spanner function control operation clamping parts, relative to only
The flat-nose pliers that can be operated with one end, the present invention uses more convenient.
5. simple structure, is easy to manufacture.
Below, the technical characteristic in conjunction with the accompanying drawings and embodiments to the special flat-nose pliers of axle of Digit Control Machine Tool four of the present invention is made into one
The explanation of step.
Brief description of the drawings
Fig. 1：The special flat-nose pliers front view of the axle of Digit Control Machine Tool four of the present invention.
Fig. 2：The special flat-nose pliers upward view of the axle of Digit Control Machine Tool four of the present invention.
Fig. 3：The special flat-nose pliers right view of the axle of Digit Control Machine Tool four of the present invention.
Fig. 4：The C-C sectional views of Fig. 1.
Fig. 5：The D-D sectional views of Fig. 1.
Fig. 6：The E-E sectional views of Fig. 1.
Fig. 7：The flat-nose pliers pedestal front view of the present invention.
Fig. 8：The flat-nose pliers pedestal upward view of the present invention.
Fig. 9：The B-B sectional views of Fig. 7.
Figure 10：The flat-nose pliers pedestal right view of the present invention.
Figure 11：The A-A sectional views of Fig. 7.
Figure 12：The special flat-nose pliers front view of the axle of Digit Control Machine Tool four of the present invention（Moving jaw is moved to medium position, centering
Mouth is circular arc）.
Figure 13：The special flat-nose pliers front view of the axle of Digit Control Machine Tool four of the present invention（Moving jaw is moved to medium position, centering
Mouth is V-arrangement）.
Figure 14：Installation and debugging front view of the present invention（Omit dial gauge）.
Figure 15：Installation and debugging right view of the present invention.
Figure 16：The present invention carries out reset front view（Omit dial gauge）.
Figure 17：The present invention carries out reset right view.
Figure 18：Present invention dress pincers have square part front view.
Figure 19：Present invention dress pincers have square part right view.
In figure：1- moving jaws I, 2- jaw plates I, 21- centerings mouthful I, 3- flat-nose pliers pedestals, 31- openings, 32- screw mandrels peace
Dress seat, 33- slideways, 4- jaw plates II, II, 5- of 41- centerings mouthful moving jaws II, 6- soket head cap screws I, 7- pins, 8- bearings,
9- sliding nuts I, 10- screw mandrels, 11- pressing plates, 12- sliding nuts II, the outer back-up ring of 13- bearings, 14- axial end caps, tetra- jiaos of spiral shells of 15-
Mouthful, 16- soket head cap screws II, 17- soket head cap screws III.
P1- standard cylindrical rods, P2- flat mouth Pincers with spanner function, P3- dial gauges, P4- fixing screws, P5- square parts.
Specific embodiment
Embodiment 1：A kind of special flat-nose pliers of the axle of Digit Control Machine Tool four, as Figure 1-Figure 11, including flat-nose pliers pedestal 3, work
Movable clamp port I 1, moving jaw II 5 and screw mandrel 10, are provided with the opening 31 for mounting screw on the flat-nose pliers pedestal, described
Flat-nose pliers pedestal on be additionally provided with slideway 33 and two screw mandrel mounting seats 32, slideway is located between two screw mandrel mounting seats, institute
The screw mandrel 10 stated is arranged in screw mandrel mounting seat through screw mandrel mounting seat 32 and by bearing 8, and screw mandrel is located between slideway, screw mandrel
Upper semisection on sliding nut I 9 is installed, sliding nut II 12 is installed on the lower semisection of screw mandrel, sliding nut I and slide spiral shell
Female II top is provided with pressing plate 11, and the end for having gap, pressing plate 11 between pressing plate and sliding nut I and sliding nut II passes through spiral shell
Nail is connected with screw mandrel mounting seat 32, and described moving jaw I 1 and moving jaw II 5 is sleeved on pressing plate and slideway, moving jaw
I 1 side is connected with sliding nut I 9, and the side of moving jaw II 5 is connected with sliding nut II 12, the end face of moving jaw I
On be also equipped with jaw plate I 2, jaw plate I is provided with centering mouthful I 21 on middle part, and jaw is also equipped with the end face of moving jaw II
Plate II 4, is provided with the centering mouthful II 41 coordinated with centering mouthful I, described sliding nut I, sliding nut II on the middle part of jaw plate II
Distance to flat-nose pliers base central point is equal, and hand of spiral on the upper semisection and lower semisection of the screw mandrel is conversely, screw thread
Other geometric parameter all sames.The outside of screw mandrel mounting seat 32 is extended at the described two ends of screw mandrel 10, and screw mandrel two ends are mounted on
Corner screw socket 15, corner screw socket is simultaneously locked on screw mandrel by pin 7.Described bearing 8 is disposed with two, between two bearings
The outer back-up ring 13 of bearing is additionally provided with, axial end cap 14 is provided with the bearing of screw mandrel end.
In the present embodiment, described centering mouthful I 21 is identical with the shape of centering mouthful II 41, and centering mouthful I and centering mouthful II are
Circular arc opening（As shown in figure 12）, being converted as one kind, described centering mouthful I and centering mouthful II are toothed edge V-arrangement openings（Such as
Shown in Figure 13）.Centering mouthful I and centering mouthful II are used for clamping cylindrical rod part, are capable of achieving the cylindrical rod and Digit Control Machine Tool four installed
Axle（Rotary table）The coaxial function in the center of circle, this kind of method is suitable for processing middle-size and small-size cylindrical rod, for larger cylindrical rod also
Need to be used by scroll chuck.
In the present embodiment, described sliding nut I 9 and the cross sectional shape of sliding nut II 12 are the rectangles with boss
（As shown in Fig. 5-Fig. 6）, being converted as one kind, described sliding nut can also be using its convenient knot fixed with moving jaw
Structure.
Installation process of the invention：As shown in Fig. 7-Figure 11, whole pedestal is casting to the shape and structure of flat-nose pliers pedestal 3
Carry out the processing of key position again afterwards, it is similar with traditional flat-nose pliers pedestal.The installation of screw mandrel 10：Spiral shell is machined with screw mandrel 10
Line, half section is left hand thread, and half section is right-handed thread in addition.Screw mandrel both sides are separately installed with sliding nut I 9 and slide spiral shell
Female II 12, can be slided along screw mandrel 10, screw mandrel 10 is loaded in the hole of screw mandrel mounting seat 32 of flat-nose pliers pedestal 3, by screw mandrel
The movement of 10 two ends is sequentially loaded into sliding nut I 9 and sliding nut II 12, and next is respectively charged into bearing 8, between two bearings 8
Load the outer back-up ring 13 of bearing；Load axial end cap 14 at outer end bearings 8, using being screwed, play limitation screw mandrel 10 axially
Mobile effect.Expose at the two ends of screw mandrel 10 and corner screw socket 15 is screwed into outside screw mandrel mounting seat 32, there is interior inside corner screw socket 15
Screw thread, is connected with the external screw thread of screw mandrel 10 and tightens, and locked with pin 7.Part on screw mandrel can just load pressing plate after installing
12, tighten four direction with soket head cap screw III 17.Moving jaw I 1 and moving jaw II 5 are sequentially loaded into, respectively with slip
Nut I 9 is fixedly connected with sliding nut II 12（Connected mode is tightened from two sides respectively using soket head cap screw I 6）.Finally will
Jaw plate I 2 loads the endface position of moving jaw I 1, using tightening connection at soket head cap screw II 16 laterally jaw；Same
Jaw plate II 4 loads the endface position of moving jaw II 5, using connection is tightened at soket head cap screw II 16 laterally jaw, entirely
Flat mouth wrench structure installation.
Use process：, it is necessary to carry out installation and debugging to flat-nose pliers, flat-nose pliers is installed to four axle rotary works using preceding
On platform as shown in Figure 14-Figure 15, screw on fixing screws P4 at the both-side opening of flat-nose pliers pedestal 3, fix flat-nose pliers not give to
Under fall.Then corner screw socket 15, swivel vice spanner P2, at this moment moving jaw I 1 and activity are inserted using flat mouth Pincers with spanner function P2
Jaw II 5 is moved to flat-nose pliers center position.When preparing near center, standard cylindrical rod P1 is inserted into the He of jaw plate I 2
The middle centering of jaw plate 4 II mouthful position, continues swivel vice spanner P2, until standard cylindrical rod is clamped.Then by percentage
Table loads machine tool chief axis, and then dial gauge contact standard cylindrical rod P1 upper surfaces rotate four axles（Rotary table）Viewing
The rotational case of dial gauge, and slowly mobile adjustment flat-nose pliers axle center and four axles（Rotary table）Axis coinciding.When adjusting
Afterwards, fixing screws P4 is tightened firmly, completes installation and debugging.
The axle of Digit Control Machine Tool four（Rotary table）The occupation mode of special flat-nose pliers：Flat-nose pliers installs rear, it is necessary to carry out
The setting of zero point, dial gauge is arranged on machine tool chief axis, as shown in Figure 16-Figure 17, the contact jaw plate I 2 of dial gauge
Surface, at this moment by rotating four axles（Rotary table）To adjust the level of flat-nose pliers jaw, after adjusting the level of jaw plate I 2,
Changing coordinates are set to the A axle zero points in G54 coordinates（Four axles that this is stated are the A axles of Digit Control Machine Tool）.
One square part P5 is loaded into flat-nose pliers and leans on centre position, due to moving jaw I 1 and moving jaw II 5
The amount of movement that open and close are closed is identical（Screw mandrel two ends screw thread form is identical, and the hand of spiral is opposite）.Therefore the square for loading
The center of part to both ends of the surface distance, relative to four axles（Rotary table）The equal a=a1 of revolution difference, realizes alignment function.
Claims (6)
1. a kind of special flat-nose pliers of the axle of Digit Control Machine Tool four, including flat-nose pliers pedestal（3）, moving jaw I（1）, moving jaw II（5）
And screw mandrel（10）, the opening for mounting screw is provided with the flat-nose pliers pedestal（31）, it is characterised in that：Described flat mouth
Slideway is additionally provided with pincers pedestal（33）With two screw mandrel mounting seats（32）, slideway is located between two screw mandrel mounting seats, described
Screw mandrel（10）Through screw mandrel mounting seat（32）And by bearing（8）In screw mandrel mounting seat, pacify on the upper semisection of screw mandrel
Equipped with sliding nut I（9）, sliding nut II is installed on the lower semisection of screw mandrel（12）, above sliding nut I and sliding nut II
Pressing plate is installed（11）, pressing plate（11）End by screw and screw mandrel mounting seat（32）Connection, described moving jaw I（1）
With moving jaw II（5）It is sleeved on pressing plate and slideway, moving jaw I（1）Side and sliding nut I（9）Connection, adjustable clamp
Mouth II（5）Side and sliding nut II（12）Connection, is also equipped with jaw plate I on the end face of moving jaw I（2）, jaw plate I
Centering mouthful I is provided with middle part（21）, jaw plate II is also equipped with the end face of moving jaw II（4）, jaw plate II opens on middle part
There is the centering mouthful II coordinated with centering mouthful I（41）, described sliding nut I, sliding nut II to flat-nose pliers base central point
Apart from equal, the hand of spiral on the upper semisection and lower semisection of the screw mandrel is conversely, other geometric parameter all sames of screw thread.
2. the special flat-nose pliers of the axle of Digit Control Machine Tool according to claim 1 four, it is characterised in that：Described screw mandrel（10）Two ends
Extend screw mandrel mounting seat（32）Outside, screw mandrel two ends are mounted on corner screw socket（15）, corner screw socket is simultaneously by pin（7）
It is locked on screw mandrel.
3. the special flat-nose pliers of the axle of Digit Control Machine Tool according to claim 1 and 2 four, it is characterised in that：Described bearing（8）Cloth
Two are equipped with, the outer back-up ring of bearing is additionally provided between two bearings（13）.
4. the special flat-nose pliers of the axle of Digit Control Machine Tool according to claim 1 and 2 four, it is characterised in that：Described bearing（8）Cloth
Two are equipped with, axial end cap is provided with the bearing of screw mandrel end（14）.
5. the special flat-nose pliers of the axle of Digit Control Machine Tool according to claim 1 and 2 four, it is characterised in that：Described centering mouthful I
（21）With centering mouthful II（41）Shape it is identical, centering mouthful I and centering mouthful II are circular arc opening or toothed edge V-arrangement opening.
6. the special flat-nose pliers of the axle of Digit Control Machine Tool according to claim 1 and 2 four, it is characterised in that：Described sliding nut I
（9）With sliding nut II（12）Cross sectional shape be the rectangle with boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611100855.7A CN106736679A (en) | 2016-12-05 | 2016-12-05 | The special flat-nose pliers of the axle of Digit Control Machine Tool four |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611100855.7A CN106736679A (en) | 2016-12-05 | 2016-12-05 | The special flat-nose pliers of the axle of Digit Control Machine Tool four |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106736679A true CN106736679A (en) | 2017-05-31 |
Family
ID=58884231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611100855.7A Pending CN106736679A (en) | 2016-12-05 | 2016-12-05 | The special flat-nose pliers of the axle of Digit Control Machine Tool four |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106736679A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106984987A (en) * | 2017-05-27 | 2017-07-28 | 马鞍山方圆动力科技有限公司 | A kind of school mouth mold clamping tooling |
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|---|---|---|---|---|
| CN85204862U (en) * | 1985-11-10 | 1986-10-29 | 周元坤 | High precision multi-function universal centring vice |
| JP2010023196A (en) * | 2008-07-22 | 2010-02-04 | Miki Seisakusho:Kk | Fixture unit for clamp |
| CN201728601U (en) * | 2010-07-19 | 2011-02-02 | 莫伟兵 | Novel dual-purpose flat opening table |
| CN202861807U (en) * | 2012-09-10 | 2013-04-10 | 大连索尼卡精密机械有限公司 | Automatic centring flat tongs for precision machining |
| CN203045362U (en) * | 2013-01-28 | 2013-07-10 | 苏州中佳精密机械有限公司 | Bidirectional centering jig |
| CN203197621U (en) * | 2013-04-11 | 2013-09-18 | 湖北三江航天险峰电子信息有限公司 | Bidirectional self-centering flat-nose pliers |
| CN204584794U (en) * | 2015-04-23 | 2015-08-26 | 成都液力机械有限公司 | Two-way automatic location indexing fixture |
| CN204913388U (en) * | 2015-09-23 | 2015-12-30 | 深圳市晋铭航空技术有限公司 | Four -axis processing clamping device |
| CN206216312U (en) * | 2016-12-05 | 2017-06-06 | 柳州职业技术学院 | The special flat-nose pliers of the axle of Digit Control Machine Tool four |
-
2016
- 2016-12-05 CN CN201611100855.7A patent/CN106736679A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85204862U (en) * | 1985-11-10 | 1986-10-29 | 周元坤 | High precision multi-function universal centring vice |
| JP2010023196A (en) * | 2008-07-22 | 2010-02-04 | Miki Seisakusho:Kk | Fixture unit for clamp |
| CN201728601U (en) * | 2010-07-19 | 2011-02-02 | 莫伟兵 | Novel dual-purpose flat opening table |
| CN202861807U (en) * | 2012-09-10 | 2013-04-10 | 大连索尼卡精密机械有限公司 | Automatic centring flat tongs for precision machining |
| CN203045362U (en) * | 2013-01-28 | 2013-07-10 | 苏州中佳精密机械有限公司 | Bidirectional centering jig |
| CN203197621U (en) * | 2013-04-11 | 2013-09-18 | 湖北三江航天险峰电子信息有限公司 | Bidirectional self-centering flat-nose pliers |
| CN204584794U (en) * | 2015-04-23 | 2015-08-26 | 成都液力机械有限公司 | Two-way automatic location indexing fixture |
| CN204913388U (en) * | 2015-09-23 | 2015-12-30 | 深圳市晋铭航空技术有限公司 | Four -axis processing clamping device |
| CN206216312U (en) * | 2016-12-05 | 2017-06-06 | 柳州职业技术学院 | The special flat-nose pliers of the axle of Digit Control Machine Tool four |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106984987A (en) * | 2017-05-27 | 2017-07-28 | 马鞍山方圆动力科技有限公司 | A kind of school mouth mold clamping tooling |
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Application publication date: 20170531 |