CN106270558B - The method for turning of concertina type constant velocity cardan joint endcapped type out star wheel - Google Patents

The method for turning of concertina type constant velocity cardan joint endcapped type out star wheel Download PDF

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Publication number
CN106270558B
CN106270558B CN201610713264.0A CN201610713264A CN106270558B CN 106270558 B CN106270558 B CN 106270558B CN 201610713264 A CN201610713264 A CN 201610713264A CN 106270558 B CN106270558 B CN 106270558B
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China
Prior art keywords
turning
endoporus
axis body
star wheel
constant velocity
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CN201610713264.0A
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CN106270558A (en
Inventor
袁雪枫
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SHANGHAI CHANGRUI AUTO PARTS Co Ltd
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SHANGHAI CHANGRUI AUTO PARTS Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B1/00—Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/20—Longitudinally-split sleeves, e.g. collet chucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/40—Expansion mandrels
    • B23B31/404—Gripping the work or tool by jaws moving radially controlled by conical surfaces

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)

Abstract

The invention belongs to be machined turning process field, a kind of method for turning of concertina type constant velocity cardan joint endcapped type out star wheel is disclosed, is comprised the following steps：（1）By claw using endoporus as clamping face, endoporus bottom surface, by the end of top fixed axis body, is carried out rough turn as locating surface to axis body outer surface；（2）Using the axis body surface of rough turn mistake as clamping face, locating surface, smart car blind hole outer surface and endoporus are used as using axis body and the way station terrace of blind hole；（3）Using the endoporus that smart car is crossed as clamping face, blind hole outer surface is as positioning clamping workpiece, the outer surface of smart car axis body, the end face of axis body and centre bore.Present invention employs Full-numerical-control lathe process technique, eliminates milling flat drill centers equipment, thoroughly solves the problems, such as product quality and blade excessive loss caused by the destabilizing factor of milling flat drill centers process.

Description

The method for turning of concertina type constant velocity cardan joint endcapped type out star wheel
Technical field
The invention belongs to be machined turning process field, more particularly to a kind of concertina type constant velocity cardan joint end envelope The method for turning of closed form out star wheel.
Background technology
Constant velocity cardan joint is the key components and parts on automobile, is that a kind of output shaft and input shaft are fast with the intermittent angle equal to 1 Spend the universal joint than transmitting motion.Constant velocity cardan joint by service behaviour point can centered on fixed and concertina type, by the car Installation form and outer shape can be divided into endcapped type, axle sleeve type, flange-type, wheel type etc. again.Wherein VL types, which belong to, stretches Contracting, flange-type constant velocity cardan joint, because its have simple in construction, size is small, light weight but long lifespan, intensity is high the advantages of it is extensive Use.With developing rapidly for automobile industry, there is endcapped type there occurs branch in the out star wheel in VL type universal joints Out star wheel, because of its simple installation, development is more and more faster, the out star wheel trend of big substituted flange-type.
The method for turning of this endcapped type out star wheel is substantially：1. use milling flat drill centers special equipment Milling flat drill centers；2. numerically controlled lathe turning；3. numerical control lathe wheeled litter large end face and endoporus.The drawbacks of such a processing mode It is milling flat drill centers process, first, because of the abrasion of the centre drill in modular cutting tool assembly and blade in process not Together, depth of center hole fluctuation is caused greatly, size is difficult to control, and need to be often adjusted, second, because using single movable V-block folder Tight shank is cylindrical, and the clamping and positioning mode for the tight way station terrace that pressurizes, clamping uniformity is poor, causes centre bore inclined, influences rear road The allowance of process is uneven, or even the phenomenon that car does not go out occurs, and has a strong impact on the life-span of blade, finally, three In procedure, the first two procedure is clamped positioning using black skin, has run counter to the selection principle of Vehicle Processing benchmark, product matter Amount fluctuation is big, and the particularly form and position tolerance such as beating degree is overproof.
The content of the invention
The invention aims to solve above-mentioned technical problem, there is provided a kind of concertina type constant velocity cardan joint endcapped type The method for turning of out star wheel, numerically controlled lathe is coordinated by frock, realizes to the accurate processing of out star wheel, ensure that crudy And automaticity.
The present invention adopts the technical scheme that：
A kind of method for turning of concertina type constant velocity cardan joint endcapped type out star wheel, the out star wheel include front end Axis body and rear end blind hole, the inner hole surface of blind hole, the outer surface of outer surface and axis body, centre bore and end face to treat turning surface, It is characterized in that comprise the following steps：
（1）By claw using endoporus as clamping face, endoporus bottom surface passes through the end of top fixed axis body as locating surface Portion, axis body outer surface is carried out rough turn；
（2）Using the axis body surface of rough turn mistake as clamping face, locating surface, smart car are used as using axis body and the way station terrace of blind hole Blind hole outer surface and endoporus；
（3）Using the endoporus that smart car is crossed as clamping face, blind hole outer surface is as positioning clamping workpiece, the appearance of smart car axis body Face, the end face of axis body and centre bore.
Further, described（1）Frock used is three-jaw rough-turning clamp in step, including connecting seat, pedestal and pull bar, The connecting seat is connected on the rotating disk of lathe, and the pedestal is connected on the connecting seat, and the front end of the pedestal is claw, The pull bar is arranged in the endoporus of the pedestal, and the pull bar is movable to realize clamping and pine of the claw to endoporus Open.
Further, positioning head is set in the front end of the pedestal, and the top of the positioning head and endoporus coordinates positioning.
Further, it is described it is top for bowl-type it is top.
Further, described（2）Frock in step is collet chuck, including terminal pad, cylinder and vertebra cylinder, the terminal pad connection To turntable of machine tool, the cylinder is connected to the terminal pad, and the vertebra cylinder is connected to the cylinder, bullet is set in the cone cylinder Property ringfeder, the elastic expansion-sleeve are connected by coupling body with disc type pull bar, and the disc type pull bar is located at the cylinder and terminal pad Through hole in, coupling body connection benchmark cushion block and locating piece, after collet chuck is stretched into the shaft end of workpiece, disc type pull bar and coupling Zoarium moves after driving elastic expansion-sleeve, and the endoporus of elastic expansion-sleeve reduces in the presence of cone cylinder, embraces the blind hole outer surface of workpiece, institute Locating piece is stated to position with axis body and the way station terrace of blind hole.
Further, described（3）Frock used is pulling plug formula outer circle finish turning fixture in step, including connecting seat, main body, interior drawing Bar, the connecting seat connecting machine tool rotating disk, the main body connect the connecting seat, and the draw-in bar is arranged in main body, described Body front end is tapered, and outside is cased with the tapered collet of endoporus, has a pulling plug to be connected with draw-in bar in main hole, pulling plug Front end is contacted with collet, and a positioning block is connected with main body, by the inner hole sleeve of workpiece in the outside of collet, interior drawing When bar and pulling plug are toward post-tensioning, moved after driving collet, in the presence of taper, collet is cylindrical to swell, and clamps workpiece Endoporus, and workpiece is adjacent to locating piece, realize the clamping and positioning of workpiece.
Further, rotation ring of setting up defences is covered on the collet, anti-rotation ring rear end sets push rod, and the push rod is connected to interior Pull bar, when being pushed away before the draw-in bar, push rod and anti-rotation ring push the spring chuck unclamp, and remove workpiece.
Further, the process equipment of the turnery processing is numerically controlled lathe.
The beneficial effects of the invention are as follows：
The present invention compared with prior art, has an advantageous effect in that：
（1）Full-numerical-control lathe process technique is employed, milling flat drill centers equipment is eliminated, thoroughly solves because milling is put down Product quality caused by the destabilizing factor of face drill centers process and blade excessive loss's problem.
（2）Only first thick cylindrical turning process is positioned and clamped using blank in three turning processes, and rear two procedures are equal Using the turnery processing face of preceding working procedure as positioning, clamping face, clamping and positioning precision is effectively increased, so as to greatly improve Machining accuracy, the particularly control to form and position tolerances such as beating degrees.
（3）The cancellation of milling flat drill centers equipment, opening for frock clamp needed for equipment and converted products is not only saved Pin, while also bring convenience to maintenance of equipment.
（4）The establishment of Full-numerical-control lathe process technique, the logistics links of product in process are not only reduced, and Device layout can be made more reasonable, compact, while provided conveniently for automated production.
Brief description of the drawings
Accompanying drawing 1 is stacking chart of the forging blank with turning finished product of out star wheel；
Accompanying drawing 2 is the rough turn process clamping of out star wheel and turning schematic diagram（Grid lines hatch region removes for the turning of this process Material）；
Accompanying drawing 3 is out star wheel smart car endoporus process clamping turning schematic diagram（Grid lines hatch region is that the turning of this process is gone The material removed）；
Accompanying drawing 4 is out star wheel fine turning outer circle process clamping turning schematic diagram（Grid lines hatch region is that the turning of this process is gone The material removed）.
Label in accompanying drawing is respectively：
1. the first connecting seat；2. pedestal；
3. pull bar；4. claw；
5. positioning head；6. bowl-type is top；
7. disc type pull bar；8. terminal pad；
9. contour pad；10. cylinder；
11. coupling body；12. benchmark cushion block；
13. the first locating piece；14. cone cylinder；
15. elastic expansion-sleeve；16. the second connecting seat；
17. rod head；18. main body；
19. push rod；20. anti-rotation ring；
21. the second locating piece；22. collet；
23. pulling plug；24. workpiece.
Embodiment
The method for turning of concertina type constant velocity cardan joint endcapped type out star wheel of the present invention, including following process：
（1）By claw using endoporus as clamping face, endoporus bottom surface passes through the end of top fixed axis body as locating surface Portion, axis body outer surface is carried out rough turn；
（2）Using the axis body surface of rough turn mistake as clamping face, locating surface, smart car are used as using axis body and the way station terrace of blind hole Blind hole outer surface and endoporus；
（3）Using the endoporus that smart car is crossed as clamping face, blind hole outer surface is as positioning clamping workpiece, the appearance of smart car axis body Face, the end face of axis body and centre bore.
Referring to accompanying drawing 1, the endoporus bottom of concertina type constant velocity cardan joint endcapped type out star wheel is not turning, its remaining part Divide and be required for reaching size requirement and precision by turning.The inner hole surface of turning part including blind hole, outer surface and axis body Outer surface, centre bore and end face.
Referring to accompanying drawing 2, the first step is rough turn cylindrical：Using forging endoporus as clamping face, endoporus bottom surface is as locating surface, together Shi little Duan is withstood with top, rough turn cylindrical, removes most of cylindrical surplus, and provide smart benchmark for following process.
Thick cylindrical turning process carries out turnery processing by the way of the top of a folder one, and the inner hole sleeve of workpiece 24 is in rough-turning clamp Front end, small end bowl-type top 6 are withstood, and the endoporus bottom surface of workpiece 24 is adjacent to the positioning head 5 of rough-turning clamp front end, lathe oil Cylinder promotes pull bar 3 to be moved along, and promote 3 claws 4 inner hole wall for clamping workpiece 24 outward realize the clamping of workpiece 24 with Positioning, the excision with grid lines region material in workpiece 24 can be automatically performed by turning operation.Because it is used be that bowl-type is top 6, Gu the small end head of workpiece 24 has one section can not process, fine turning outer circle process can be left to and machined in the lump.After machining, machine Bed oil cylinder post-tensioning, can unclamp claw 4, after bowl-type top 6 retreats, can remove workpiece 24.
Referring to accompanying drawing 3, second step, smart car endoporus：Using the large cylindrical of rough turn mistake as clamping face, way station terrace is as fixed Position clamping workpiece, smart car large end face and endoporus.
Frock used in smart car endoporus process is collet chuck, and there is a cone cylinder 14 front end of collet chuck, is inside provided with an elastic expansion-sleeve 15, Elastic expansion-sleeve 15 is connected further through coupling body 11 with disc type pull bar 7, and benchmark cushion block 12 is by 3 contour pads 9 with screw with being connected Disk 8 connects, and ensures that benchmark cushion block 12 is connected by screw locating piece 13, workpiece 24 in axial without motion, the front end of benchmark cushion block 12 After small end stretches into collet chuck, lathe oil cylinder post-tensioning, moved after driving elastic expansion-sleeve 15 by disc type pull bar 7, coupling body 11, in cone cylinder 14 In the presence of the endoporus of elastic expansion-sleeve 15 reduce, embrace the large cylindrical face of workpiece 24, while because the axial direction of elastic expansion-sleeve 15 moves to left, Workpiece 24 can be adjacent to locating piece 13, realize the clamping and positioning of workpiece 24, can be automatically performed in workpiece 24 by turning operation Excision with grid lines region material.After machining, pushed away before lathe oil cylinder, elastic expansion-sleeve 15 can be unclamped, remove workpiece 24.
Referring to accompanying drawing 4, the 3rd step, fine turning outer circle：Using the endoporus that smart car is crossed as clamping face, large end face is as positioning clamping Workpiece, fine turning outer circle, small end face and centre bore.
Frock used in fine turning outer circle process is lathe finish fixture, and the front end of main body 18 of lathe finish fixture is tapered, and outside is cased with The tapered collet 22 of endoporus, there is a pulling plug 23 to be connected with rod head 17 in the hole of main body 18, the front end of pulling plug 23 and spring Chuck 22 is contacted, and a positioning block 21 is connected with main body 18, by the inner hole sleeve of workpiece 24 in the outside of collet 22, lathe Oil cylinder post-tensioning, by rod head 17 and pulling plug 23, moved after collet 22 can be driven, in the presence of taper, collet Workpiece 24, can be adjacent to locating piece 21 by the 22 cylindrical endoporus for swelling, clamping workpiece 24, while moving to left because of collet 22, real The clamping and positioning of existing workpiece 24, the excision with grid lines region material in workpiece 24 can be automatically performed by turning operation.Add After the completion of work, pushed away before lathe oil cylinder, by push rod 19, it is anti-rotation ring 20, can push the spring chuck 22 unclamp, remove workpiece 24.
It the above is only the preferred embodiment of the present invention, it is noted that for those skilled in the art, Without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should be regarded as this hair Bright protection domain.

Claims (8)

1. a kind of method for turning of concertina type constant velocity cardan joint endcapped type out star wheel, the out star wheel includes front end Axis body and the blind hole of rear end, the inner hole surface of blind hole, the outer surface of outer surface and axis body, centre bore and end face are to treat turning surface, its It is characterised by：Comprise the following steps：
（1）By claw using endoporus as clamping face, endoporus bottom surface is right by the end of top fixed axis body as locating surface Axis body outer surface carries out rough turn；
（2）Using the axis body surface of rough turn mistake as clamping face, locating surface, smart car blind hole are used as using axis body and the way station terrace of blind hole Outer surface and endoporus；
（3）Using the endoporus that smart car is crossed as clamping face, blind hole outer surface as positioning clamping workpiece, the outer surface of smart car axis body, The end face of axis body and centre bore.
2. the method for turning of concertina type constant velocity cardan joint endcapped type out star wheel according to claim 1, it is special Sign is：Described（1）Frock used is three-jaw rough-turning clamp in step, including the first connecting seat, pedestal and pull bar, described First connecting seat is connected on the rotating disk of lathe, and the pedestal is connected on first connecting seat, and the front end of the pedestal is Claw, the pull bar are arranged in the endoporus of the pedestal, and the pull bar is movable to realize clamping of the claw to endoporus And release.
3. the method for turning of concertina type constant velocity cardan joint endcapped type out star wheel according to claim 2, it is special Sign is：Positioning head is set in the front end of the pedestal, and the top of the positioning head and endoporus coordinates positioning.
4. the method for turning of concertina type constant velocity cardan joint endcapped type out star wheel according to claim 1, it is special Sign is：It is described it is top for bowl-type it is top.
5. the method for turning of concertina type constant velocity cardan joint endcapped type out star wheel according to claim 1, it is special Sign is：Described（2）Frock in step is collet chuck, including terminal pad, cylinder and cone cylinder, the terminal pad are connected to lathe Rotating disk, the cylinder are connected to the terminal pad, and the cone cylinder is connected to the cylinder, and elastic expanding is set in the cone cylinder Set, the elastic expansion-sleeve is connected by coupling body with disc type pull bar, and the disc type pull bar is located at leading to for the cylinder and terminal pad In hole, the coupling body connection benchmark cushion block and the first locating piece, after collet chuck is stretched into the shaft end of workpiece, disc type pull bar and coupling Body moves after driving elastic expansion-sleeve, and the endoporus of elastic expansion-sleeve reduces in the presence of cone cylinder, embraces the blind hole outer surface of workpiece, described First locating piece positions with axis body and the way station terrace of blind hole.
6. the method for turning of concertina type constant velocity cardan joint endcapped type out star wheel according to claim 1, it is special Sign is：Described（3）Frock used is pulling plug formula outer circle finish turning fixture in step, including the second connecting seat, main body, draw-in bar, The second connecting seat connecting machine tool rotating disk, the main body connect second connecting seat, and the draw-in bar is arranged in main body, The body front end is tapered, and outside is cased with the tapered collet of endoporus, has a pulling plug to be connected with draw-in bar in main hole, Pulling plug front end contacts with collet, one second locating piece is connected with main body, by the inner hole sleeve of workpiece in collet When outside, draw-in bar and pulling plug are toward post-tensioning, moved after driving collet, in the presence of taper, collet is cylindrical to swell, folder The endoporus of clamping of workpieces, and workpiece is adjacent to the second locating piece, realize the clamping and positioning of workpiece.
7. the method for turning of concertina type constant velocity cardan joint endcapped type out star wheel according to claim 6, it is special Sign is：Set, which is set up defences, on the collet revolves ring, and anti-rotation ring rear end sets push rod, and the push rod is connected to draw-in bar, when When being pushed away before the draw-in bar, push rod and anti-rotation ring push the spring chuck unclamp, and remove workpiece.
8. the turning of concertina type constant velocity cardan joint endcapped type out star wheel according to any one of claim 1 to 7 adds Work method, it is characterised in that：The process equipment of the turnery processing is numerically controlled lathe.
CN201610713264.0A 2016-08-24 2016-08-24 The method for turning of concertina type constant velocity cardan joint endcapped type out star wheel Active CN106270558B (en)

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109571253B (en) * 2018-11-30 2024-04-12 瓦房店轴承集团国家轴承工程技术研究中心有限公司 Bearing inner diameter positioning device and reverse positioning grinding method thereof
CN114211010A (en) * 2021-11-17 2022-03-22 上海长锐汽车零部件有限公司 Turning method of UF (ultra-smooth) outer star wheel taking hot forging as blank

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004090203A (en) * 2002-09-04 2004-03-25 Anlet Co Ltd Roots rotor machining method and machining device
CN102303128A (en) * 2011-08-26 2012-01-04 天津市天发重型水电设备制造有限公司 Method for making and machining eccentric combination pin
CN203109284U (en) * 2013-04-01 2013-08-07 浙江欧迪恩传动科技股份有限公司 Inner-supporting fixture of bell-shaped shell of constant velocity universal joint
CN205464407U (en) * 2015-12-24 2016-08-17 上海长锐汽车零部件有限公司 Extraterrestrial round of machine tooling frock of arc lane in constant velocity cardan joint

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004090203A (en) * 2002-09-04 2004-03-25 Anlet Co Ltd Roots rotor machining method and machining device
CN102303128A (en) * 2011-08-26 2012-01-04 天津市天发重型水电设备制造有限公司 Method for making and machining eccentric combination pin
CN203109284U (en) * 2013-04-01 2013-08-07 浙江欧迪恩传动科技股份有限公司 Inner-supporting fixture of bell-shaped shell of constant velocity universal joint
CN205464407U (en) * 2015-12-24 2016-08-17 上海长锐汽车零部件有限公司 Extraterrestrial round of machine tooling frock of arc lane in constant velocity cardan joint

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