CN203509239U - Gear shaping clamp adopting inner hole expansion structure - Google Patents
Gear shaping clamp adopting inner hole expansion structure Download PDFInfo
- Publication number
- CN203509239U CN203509239U CN201320701203.4U CN201320701203U CN203509239U CN 203509239 U CN203509239 U CN 203509239U CN 201320701203 U CN201320701203 U CN 201320701203U CN 203509239 U CN203509239 U CN 203509239U
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- China
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- positioning seat
- workpiece
- ball retainer
- gear
- steel ball
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Abstract
The utility model relates to a gear shaping clamp adopting an inner hole expansion structure. The gear shaping clamp comprises a workpiece, an upper positioning seat, a lower positioning seat and a connecting shaft, wherein the connecting shaft is fixedly connected with a pull rod penetrating through the upper positioning seat upwards; a quick-change pressure plate is sleeved at the periphery of the top of the pull rod; a protruding structure is arranged at the top of the pull rod, and is buckled with the quick-change pressure plate; a positioning shaft and a steel ball retainer are arranged in the upper positioning seat; the positioning shaft is sleeved outside the pull rod; the steel ball retainer is sleeved outside the positioning shaft; the bottom of the positioning shaft and the bottom of the steel ball retainer are fixedly connected together through inner hexagon screws; steel balls are mounted close to the top of the steel ball retainer; the workpiece is positioned between the upper positioning seat and the quick-change pressure plate, and is sleeved outside the steel balls of the steel ball retainer. The gear shaping clamp can not only ensure the positioning precision of the workpiece, but also ensure that the expansion amount is in the elastic deformation range of the workpiece, so that the condition that the inner hole is expanded and does not return to the original size; meanwhile, as the magnitude of interference is small, a worker can place the workpiece easily, and the actual operation is facilitated.
Description
Technical field
The utility model relates to gear-shaping clamp in a kind of hole of rising, and belongs to Gear Processing field.
Background technology
Gear shaping is to utilize pinion cutter on gear shapping machine, to process the tooth-face processing method of inside and outside gear or tooth bar etc.
The process of gear shaping, in principle, is equivalent to the engagement of a pair of straight spur gear.The forms of motion of workpiece and pinion cutter.Pinion cutter is equivalent to one and on gear, grinds anterior angle and relief angle, forms the gear of cutting edge, and gear teeth base is as another gear.During gear shaping, cutter is made linear reciprocating motion at a high speed along axis of workpiece direction, forms the main motion of machining, also makes gapless gear motion with workpiece simultaneously, processes whole gear tooth profiles on workpiece.In adding process, cutter often makes a round trip and only cuts out a very little part for workpiece teeth groove, and the envelope that the tooth trace of workpiece teeth groove is repeatedly cut by pinion cutter cutting edge is formed.
For the design of gear gear-shaping clamp, the traditional structure of most of employing: its operation principle is as follows:
First gear gear-shaping clamp and equipment connection get up, and that utilizes that standard component accomplishes fluently frock with dial gauge beats to guarantee the workpiece the processing requirement of beating.Then workpiece is put on gear-shaping clamp, end face, by positioning seat location, is radially located by axis of cone rising by ringfeder.This rise structure of endoporus of ringfeder of utilizing is applicable to the Gear Shaping of most gears, can meet the processing technology requirement of gear gear shaping.
But when a second gear is carried out to Gear Shaping in conjunction with the gear of some special shapes such as tooth, use conventional brace poor effect.Because a second gear is thiner in conjunction with toothing, thickness only has five millimeters, and has again four openings in endoporus surrounding.Such second gear after gear shaping finishes, passes through measurement size in conjunction with tooth: in conjunction with the endoporus of tooth, by swell, cannot be returned to original interior hole dimension.The tension that is to say ringfeder makes a second gear, in conjunction with tooth, plastic deformation occur, so cannot be returned to life size, causes this product in process, to produce a large amount of waste products.In order to guarantee product processing technique requirement, just must change clamp structure.If this sleeve clamp is made into the dead adjective-centre structure of optical axis positioning combination tooth endoporus, due to optical axis and in conjunction with the friction of tooth endoporus, cause the diameter of axle to attenuate in use for some time, locating effect worse and worse, tooth after gear shaping is jumped also worse and worse, has still produced considerable waste product.
Utility model content
The improvement of the positioning clamping device using when technical problem to be solved in the utility model is to provide and carries out Gear Shaping before a kind of gear heat, particularly thiner for bore, use the ringfeder endoporus that rises easily to cause the risen situation of distortion of endoporus.In order to solve, the precision that existing gear-shaping clamp in use shows is low, fluctuation is large, the shortcomings such as the waste product that produces is many, the utility model provides a kind of special endoporus gear-shaping clamp that rises, this gear-shaping clamp can not only improve the positioning precision of some special workpiece Gear Shaping greatly, guarantee the stability of processing, and eliminated the time of adjusting, reduced the generation of waste product in batches.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: gear-shaping clamp in a kind of hole of rising, comprise workpiece, upper positioning seat, lower positioning seat and connecting axle, described upper positioning seat and lower positioning seat are fixed together up and down by bolt, lower positioning seat is upwards run through at described connecting axle Xia positioning seat bottom centre place, described connecting axle is fixedly connected with the pull bar that upwards runs through positioning seat, described pull bar top periphery is set with quick change pressing plate, described pull bar top is provided with raised structures, it engages mutually with quick change pressing plate, described upper positioning seat inside is provided with locating shaft and ball retainer, described positioning shaft sleeve is contained in outside pull bar, described ball retainer is sleeved on outside locating shaft, described locating shaft bottom is fixed together by soket head cap screw with ball retainer bottom, described ball retainer is equipped with steel ball near the position at top, described workpiece is between upper positioning seat and quick change pressing plate, and be sleeved on outside the steel ball of ball retainer.
On the basis of technique scheme, the utility model can also be done following improvement.
Further, described ball retainer is also provided with steel wire hoop, and described steel wire hoop is sleeved on the periphery of steel ball bottom.
The beneficial effect that adopts above-mentioned further scheme is that steel wire hoop can prevent that steel ball from skidding off from ball retainer outside.
Further, the inner hole structure of described steel ball and workpiece matches, and has the magnitude of interference of 0.004～0.01mm.
The beneficial effects of the utility model are: the present invention carries out structural improvement to existing fixture, that is: the steel ball within the scope of be controlled at ± 0.002mm of the dimensional tolerance of select is put on ball retainer, the centre of sphere height of steel ball is guaranteed by ball retainer, by dimension chain, calculate, the endoporus of assurance steel ball and workpiece has the magnitude of interference of 0.004～0.01mm, so not only guaranteed the positioning precision of workpiece, guaranteed that again the amount of rising is in the regime of elastic deformation of workpiece material, be unlikely to endoporus by swell, thereby reply less than the original size of endoporus.Because the magnitude of interference is very little, workman can be easy to lay workpiece, is convenient to practical operation simultaneously.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In accompanying drawing, the list of parts of each label representative is as follows:
1, locating shaft, 2, ball retainer, 3, steel wire hoop, 4, steel ball, 5, quick change pressing plate, 6, pull bar, 7, workpiece, 8, soket head cap screw, 9, upper positioning seat, 10, lower positioning seat, 11, connecting axle.
The specific embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, gear-shaping clamp in a kind of hole of rising, comprise workpiece 7, upper positioning seat 9, lower positioning seat 10 and connecting axle 11, described upper positioning seat 9 is fixed together by bolt up and down with lower positioning seat 10, described connecting axle 11 upwards runs through lower positioning seat 10 at lower positioning seat 10 bottom centre places, described connecting axle 11 is fixedly connected with the pull bar 6 that upwards runs through positioning seat 9, described pull bar 6 top periphery are set with quick change pressing plate 5, described pull bar 6 tops are provided with raised structures, it engages mutually with quick change pressing plate 5, described upper positioning seat 9 inside are provided with locating shaft 1 and ball retainer 2, described locating shaft 1 is sleeved on outside pull bar 6, described ball retainer 2 is sleeved on outside locating shaft 1, described locating shaft 1 bottom and ball retainer 2 bottoms are fixed together by soket head cap screw 8, described ball retainer 2 is equipped with steel ball 4 near the position at top, described workpiece 7 is between upper positioning seat 9 and quick change pressing plate 5, and be sleeved on outside the steel ball 4 of ball retainer 2.
Described ball retainer 2 is also provided with steel wire hoop 3, and described steel wire hoop 3 is sleeved on the periphery of steel ball 4 bottoms.
Described steel ball 4 matches with the inner hole structure of workpiece 7, and has the magnitude of interference of 0.004～0.01mm.
Assembly relation between each parts of gear-shaping clamp steel ball part is as follows: first, make ball retainer 2 parts, on the face of cylinder, divide equally the cylindrical hole that gets out ladder, the object of making shoulder hole is in order to guarantee that steel ball 4 do not fall into the endoporus place of ball retainer 2, and then under hole, sidecar goes out one annular groove and is used for inlaying steel wire hoop 3, prevents that steel ball from skidding off from outside.Finally again locating shaft 1 is installed in the endoporus of ball retainer 2, steel ball 4 is ejected, guarantee steel ball 4 and have the magnitude of interference of 0.004～0.01mm with the endoporus of workpiece 7.So steel ball 4 sizes of selecting must be consistent, the dimensional tolerance range of steel ball is in ± 0.002mm.
The operation principle of the utility model gear-shaping clamp is: first, this sleeve clamp is installed on machine spindle ring flange, adjusts and beat.Then workpiece 7 is pressed on fixture gently, in conjunction with the upper plane positioning of the top positioning seat 9 of end face of tooth, radially by steel ball 4, locates, then quick change pressing plate 5 is pressed onto on workpiece 7 upper surfaces.Connecting axle 11 is connected with equipment oil cylinder, when the oil cylinder piston of equipment is descending, drives connecting axle 11, pull bar 6 and quick change pressing plate 5 to move downward together, workpiece 7 is had good positioning completely the most at last.
Add man-hour, the main shaft of equipment rotarilys actuate a whole set of fixture and rotates together with workpiece 7, and at this moment pinion cutter, by making linear reciprocating motion at a high speed along workpiece 7 axis directions, is downwards cutting stroke, is upwards backstroke.During gear shaping, keep the gear motion relation of a pair of gear pair between pinion cutter and workpiece, when pinion cutter often turns over a tooth (1/Z swivel), workpiece also must turn over a tooth (1/Z work turns).Dark in order to be switched to gradually the full-depth tooth of workpiece, pinion cutter also will carry out radial feed motion.Radial feeds are to represent with the millimeter that in the each reciprocating stroke of pinion cutter, workpiece or cutter radial move.When reaching full-depth tooth when dark, lathe just stops radial feed motion automatically, and workpiece and cutter, to rolling one week, finally process whole gear teeth.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. gear-shaping clamp in the hole of rising, comprise workpiece (7), upper positioning seat (9), lower positioning seat (10) and connecting axle (11), described upper positioning seat (9) is fixed together by bolt up and down with lower positioning seat (10), described connecting axle (11) upwards runs through lower positioning seat (10) at lower positioning seat (10) bottom centre place, it is characterized in that, described connecting axle (11) is fixedly connected with the pull bar (6) that upwards runs through positioning seat (9), described pull bar (6) top periphery is set with quick change pressing plate (5), described pull bar (6) top is provided with raised structures, it engages mutually with quick change pressing plate (5), described upper positioning seat (9) inside is provided with locating shaft (1) and ball retainer (2), described locating shaft (1) is sleeved on outside pull bar (6), described ball retainer (2) is sleeved on outside locating shaft (1), described locating shaft (1) bottom is fixed together by soket head cap screw (8) with ball retainer (2) bottom, described ball retainer (2) is equipped with steel ball (4) near the position at top, described workpiece (7) is positioned between positioning seat (9) and quick change pressing plate (5), and be sleeved on outside the steel ball (4) of ball retainer (2).
2. the gear-shaping clamp in hole that rises according to claim 1, is characterized in that, described ball retainer (2) is also provided with steel wire hoop (3), and described steel wire hoop (3) is sleeved on the periphery of steel ball (4) bottom.
3. according to gear-shaping clamp in the hole of rising described in claim 1 or 2, it is characterized in that, described steel ball (4) matches with the inner hole structure of workpiece (7), and has the magnitude of interference of 0.004～0.01mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320701203.4U CN203509239U (en) | 2013-11-07 | 2013-11-07 | Gear shaping clamp adopting inner hole expansion structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320701203.4U CN203509239U (en) | 2013-11-07 | 2013-11-07 | Gear shaping clamp adopting inner hole expansion structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203509239U true CN203509239U (en) | 2014-04-02 |
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ID=50368221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320701203.4U Expired - Fee Related CN203509239U (en) | 2013-11-07 | 2013-11-07 | Gear shaping clamp adopting inner hole expansion structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203509239U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259584A (en) * | 2014-09-15 | 2015-01-07 | 常州利普金属制品有限公司 | Tensioning sleeve vehicle clamp |
| CN105855641A (en) * | 2016-06-22 | 2016-08-17 | 浙江万里扬股份有限公司 | Combined hobbing tool and hobbing machine |
-
2013
- 2013-11-07 CN CN201320701203.4U patent/CN203509239U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259584A (en) * | 2014-09-15 | 2015-01-07 | 常州利普金属制品有限公司 | Tensioning sleeve vehicle clamp |
| CN105855641A (en) * | 2016-06-22 | 2016-08-17 | 浙江万里扬股份有限公司 | Combined hobbing tool and hobbing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20191107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |