CN205464406U - 12 unsteady jack catchs of three -jaw - Google Patents
12 unsteady jack catchs of three -jaw Download PDFInfo
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- CN205464406U CN205464406U CN201620251653.1U CN201620251653U CN205464406U CN 205464406 U CN205464406 U CN 205464406U CN 201620251653 U CN201620251653 U CN 201620251653U CN 205464406 U CN205464406 U CN 205464406U
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- jaw
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- claw
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Abstract
The utility model provides a 12 unsteady jack catchs of three -jaw, the clamp force is even, and the work piece warp for a short time, and the performance accuracy is high, and the polarization can be good. It includes the same and three sets of monodactyles that be connected with the three chuck jaw of chuck respectively of three nested structures, the monodactyle include the holder, the frame that floats presss from both sides tight piece and link, link one end fixed with the chuck jaw that corresponds, the other end is fixed to set up first reference column, holder middle part articulate on first reference column, and the both ends symmetry is provided with the second reference column respectively, unsteady frame articulate respectively on the second reference column, both ends inboard of every frame that floats is provided with the tight piece of bellied clamp respectively. The utility model discloses a 12 unsteady jack catchs of three -jaw to the design of the lathe work of ring gear class part. Finally to 12 stress points of ring gear excircle, make every stress point on the ring gear can both receive unanimous clamp force through pressing from both sides the even distribution of tight piece the clamp force of three chuck jaw.
Description
Technical field
This utility model relates to the claw processing thin wall component, is specially a kind of three-jaw 12 point floating card
Pawl.
Background technology
Gear ring class part belongs to thin wall component, the most all uses when turning inner hole outside scroll chuck clamping
The form of circle.Owing to gear ring cylindrical mostly is irregular blank or rough turn, act on the folder of gear ring cylindrical
Clamp force is uneven, easily produces resilience, cause inner hole of workpiece dimensional accuracy after completion of processing takes off workpiece
Overproof.The most employing scroll chuck clamping cylindricals are processed, and also need to for slightly in the course of processing
Finish turning work step uses two different clamping forces, and time rough turn, clamping force is big, turns clamping force during finish turning down, logical
Crossing clamping force to ensure part roundness tolerance, clamping force is excessive, and part is easily deformed；Clamping force crosses unskilled labourer
Part easily comes off and produces danger.By adjust lathe clamping force ensure machining accuracy by the way of the easiest
Damage machine tool hydraulic system, and precision is the most from operator influence.Existing chuck jaws all exists such as
Lower problem, 1, general chuck be all that three i.e. three-jaws of clamping point, the hydraulic system clamping provided are provided
Power passes to workpiece by mechanisms such as lathe pull bar, voussoir, jaws.For thin wall component, work as three-jaw
During clamping, clamping force only acts on three positions of excircle of workpiece.If the clamping force mistake that lathe provides
Greatly, workpiece can produce elastic deformation at application point, and after completion of processing claw unclamps, workpiece is in clamping position
Put and can produce resilience.Therefore workpiece will produce circularity equal error, and the biggest error of clamping force is the biggest.2、
Owing to the cylindrical of three-jaw clamping workpiece is black skin, profile tolerance and the surface smoothness of blank are the most very poor, false
As this situation of spikes/low-points that three claws simultaneously clamp on excircle of workpiece occurs, there will be man-hour adding
The situations such as allowance distribution is uneven and eccentric.3, due to the scrambling of blank surface, claw is at folder
Application point time tight is possible without being evenly distributed to excircle of workpiece.
Utility model content
For problems of the prior art, this utility model provides a kind of three-jaw 12 point floating card
Pawl, clamping force is uniform, and workpiece deformation is little, and performance accuracy is high, and positioning performance is good.
This utility model is to be achieved through the following technical solutions:
A kind of three-jaw 12 point floating claw, identical including rolling hitch structure and respectively with three chucks of chuck
The three set monodactyles that ZHUANLIAN connects；Described monodactyle includes retainer, floating shelf, clamping block and link；Institute
The link one end stated is fixed with corresponding chuck jaw, and the other end is fixedly installed the first locating dowel；Described
It is hinged in the middle part of retainer in the first locating dowel, and two ends symmetry is respectively arranged with the second locating dowel；Described
Floating shelf be respectively hinged in the second locating dowel, be respectively arranged with projection inside the two ends of each floating shelf
Clamping block.
Preferably, one end that link is fixing with chuck jaw is provided with at least two for fixing bolt
Hole, the other end is fixed with the baffle plate for limiting retainer rotational angle.
Further, baffle plate is set in distance with link, and spacing distance can adjust.
Preferably, contrary with floating shelf on retainer side is fixedly installed positive stop.
Further, positive stop is set in distance with retainer, and spacing distance can adjust.
Preferably, clamping block is bolted in the mounting groove that floating shelf is corresponding, clamping block and workpiece
Contact point higher than other points inside floating shelf.
Preferably, the arc that retainer and floating shelf are all inside in opening is arranged.
Compared with prior art, this utility model has a following useful technique effect:
This utility model is the three-jaw 12 point floating claw that the turnery processing for gear ring class part designs.
The clamping force of three chuck jaws is evenly dispersed to eventually through clamping block 12 stress of gear ring cylindrical
On point, make each stress point on gear ring can be by consistent clamping force.Utilize lever principle, chuck
Clamping force is delivered on retainer by pawl by the first locating dowel, and retainer will further through the second locating dowel
The clamping force of its every one end is delivered separately to the two ends of two floating shelf, is floated by such two-stage and transmits
Just can being evenly distributed to some power on four points, the clamping force of so overall three chuck jaws is with regard to energy
Enough be evenly distributed on 12 clamping points of part outer by three monodactyles, clamping force evenly, work
Part deformation is less.Can be had around the locating dowel of its correspondence according to excircle of workpiece feature by retainer and floating shelf
One little amount of floating, thus can eliminate the processing bias mistake that excircle of workpiece blank out-of-flatness brings
Difference.By arranging two clamping blocks the two of floating shelf fixed positions, and clamping block with the connecing of workpiece
Contact is higher than other points, it is thus possible to ensure that the clamping force of three-jaw can be evenly distributed on 12 points.
Accompanying drawing explanation
Fig. 1 is the monodactyle structural representation described in this utility model example.
Fig. 2 is the monodactyle operating diagram described in this utility model example.
Fig. 3 is the three-jaw operating diagram described in this utility model example.
In figure: the second locating dowel 1, retainer 2, the first locating dowel 3, floating shelf 4, clamp block 5,
Link 6.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is described in further detail, described in be to this
The explanation of utility model rather than restriction.
This utility model one three-jaw 12 point floating claw, as it is shown in figure 1, it includes rolling hitch structure phase
Three set monodactyles that are same and that be connected with three chuck jaws of chuck respectively；Often set monodactyle includes the second locating dowel
1, retainer 2, the first locating dowel 3, floating shelf 4, clamp block 5, link 6；Link 6 one
End is fixed with corresponding chuck jaw, and the other end is fixedly installed the first locating dowel 3；In the middle part of retainer 2 hinged
In the first locating dowel 3, and two ends symmetry is respectively arranged with the second locating dowel 1；Floating shelf 4 cuts with scissors respectively
It is connected in the second locating dowel 1, inside the two ends of each floating shelf 4, is respectively arranged with the clamping block of projection
5.Preferably, one end that link 6 is fixing with chuck jaw is provided with at least two for fixing bolt
Hole, the other end is fixed with the baffle plate for limiting retainer 2 rotational angle.Baffle plate and link 6 in
Interval is arranged, and spacing distance can adjust.This preferred embodiment is bolted baffle plate, it is achieved interval
Adjust.Same, side contrary with floating shelf 4 on retainer 2 is fixedly installed positive stop.Limit
Position block is set in distance with retainer 2, and spacing distance can adjust.Clamping block 5 is bolted
In the mounting groove of floating shelf 4 correspondence, clamping block 5 is higher than inside floating shelf 4 with the contact point of workpiece
Other point.Retainer 2 and all inside in the opening arc of floating shelf 4 are arranged.
During use, two floating shelf 4 are installed to retainer 2 by two the second locating dowels 1 respectively
On, make two floating shelf 4 can be freely rotatable around the second locating dowel 1, afterwards clamping block 5 is passed through spiral shell
Bolt is respectively fixed in the groove of floating shelf 4, and mounted monodactyle schematic diagram is as shown in Figure 2.More than repetition
Step is until three set monodactyles install.By three monodactyles according to identical installation diameter, namely workpiece
The outside diameter of clamping, is fixedly installed to three chuck jaws of chuck respectively by bolt by link 6
On.Spacing is adjusted, it is ensured that the concordance of three monodactyle positions in installation process, as it is shown on figure 3,
Confirm again the floating shelf 4 on good all monodactyles can free floating, installation site consistent after, clamp workpiece,
Three monodactyles just can float according to excircle of workpiece profile voluntarily, and the power of three monodactyles just can be by ten
Two clamping blocks 5 are evenly distributed on 12 points of excircle of workpiece.
Claims (7)
1. a three-jaw 12 point floating claw, it is characterised in that include rolling hitch structure identical and respectively with
The three set monodactyles that three chuck jaws of chuck connect；Described monodactyle includes retainer (2), floating shelf
(4), clamping block (5) and link (6)；
Described link (6) one end is fixed with corresponding chuck jaw, and it is fixed that the other end is fixedly installed first
Position post (3)；
Described retainer (2) middle part is hinged in the first locating dowel (3), and two ends symmetry sets respectively
It is equipped with the second locating dowel (1)；
Described floating shelf (4) is respectively hinged in the second locating dowel (1), each floating shelf (4)
Two ends inside be respectively arranged with projection clamping block (5).
A kind of three-jaw 12 point floating claw the most according to claim 1, it is characterised in that connect
The fixing one end of frame (6) and chuck jaw is provided with at least two for fixing bolt hole, on the other end
It is fixed with the baffle plate for limiting retainer (2) rotational angle.
A kind of three-jaw 12 point floating claw the most according to claim 2, it is characterised in that baffle plate
Being set in distance with link (6), spacing distance can adjust.
A kind of three-jaw 12 point floating claw the most according to claim 1, it is characterised in that keep
The upper side contrary with floating shelf (4) of frame (2) is fixedly installed positive stop.
A kind of three-jaw 12 point floating claw the most according to claim 4, it is characterised in that spacing
Block is set in distance with retainer (2), and spacing distance can adjust.
A kind of three-jaw 12 point floating claw the most according to claim 1, it is characterised in that clamping
Block (5) is bolted in the mounting groove that floating shelf (4) is corresponding, clamping block (5) and workpiece
Contact point higher than floating shelf (4) inner side other points.
A kind of three-jaw 12 point floating claw the most according to claim 1, it is characterised in that keep
Frame (2) and all inside in the opening arc of floating shelf (4) are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620251653.1U CN205464406U (en) | 2016-03-29 | 2016-03-29 | 12 unsteady jack catchs of three -jaw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620251653.1U CN205464406U (en) | 2016-03-29 | 2016-03-29 | 12 unsteady jack catchs of three -jaw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205464406U true CN205464406U (en) | 2016-08-17 |
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ID=56648778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620251653.1U Active CN205464406U (en) | 2016-03-29 | 2016-03-29 | 12 unsteady jack catchs of three -jaw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205464406U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105665765A (en) * | 2016-03-29 | 2016-06-15 | 西安法士特汽车传动有限公司 | Three-jaw twelve-point floating clamping claw |
-
2016
- 2016-03-29 CN CN201620251653.1U patent/CN205464406U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105665765A (en) * | 2016-03-29 | 2016-06-15 | 西安法士特汽车传动有限公司 | Three-jaw twelve-point floating clamping claw |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |