CN105834469A - Rough turning axial positioning device - Google Patents
Rough turning axial positioning device Download PDFInfo
- Publication number
- CN105834469A CN105834469A CN201510020757.1A CN201510020757A CN105834469A CN 105834469 A CN105834469 A CN 105834469A CN 201510020757 A CN201510020757 A CN 201510020757A CN 105834469 A CN105834469 A CN 105834469A
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- CN
- China
- Prior art keywords
- conehead
- mandrel
- spindle
- ringfeder
- moveable
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Abstract
Provided is a rough turning axial positioning device, comprising a hollow spindle, and a pull rod and a moveable conehead respectively arranged in two ends of the spindle. An expansion sleeve is arranged out of the spindle. The expansion sleeve is divided into a plurality of expansion sleeve sheets along an axial direction. The expansion sleeve sheets are abutted against the outer peripheral surface of the spindle through tension springs. The spindle is provided with a plurality of conical blocks. The conical surfaces of the conical blocks are respectively cooperated with the conical surfaces on the pull rod and the moveable conehead. A spring is arranged between the pull rod and the moveable conehead. The moveable conehead is provided with a positioning sliding chute. The moveable conehead slides back and forth in the spindle through the positioning sliding chute and a set screw installed on the spindle. Using the device, through axial positioning clamping processing of a blank, two procedures of semi-reaming and semi-extractive turning are removed, a cylinder sleeve processing technology is shortened, and product processing quality is improved, so as to achieve an objective of reducing weight of the blank, and improve processing efficiency, and saving production cost.
Description
Technical field
The present invention relates to Machining Technology field, particularly to a kind of workpiece rough turn processing axial direction positioning device.
Background technology
Major part producer is all to use bipyramid blooming expanding sleeve in rough turn processing at present, axially cannot position when clamping.The technological process of processing is: heavy boring-rough turn-cut overall length-partly finish ream-half finish turning-right boring-repair-thick top gem of a girdle-pendant-finish turning-Hole honing etc.；Technological process is long, and working (machining) efficiency is low, and main cause therein is exactly that frock does not ensures processing technique requirement, and roughing cylinder sleeve wall thickness deviation is too big, and upper and lower flat cone phenomenon is serious.Therefore cylinder sleeve is in process of manufacture, and in order to ensure that product quality has to strengthen blank allowance, blank allowance is the biggest, and technological process is the longest.Reason is 1, heavy boring: positioning by blank during heavy boring, because blank both ends of the surface are not parallel, excircle dimension is not of uniform size, and location can not be guaranteed so that the cylinder sleeve wall thickness deviation of processing cannot ensure, the upper and lower flat cone phenomenon of hole size is serious；2, rough turn: because of the reason of last process time rough turn, Wall-Thickness Difference is the most serious, adds and axially cannot position, and often one end face is cut many, and another end face allowance is inadequate, cut injustice, it is difficult to ensure that the cylinder sleeve both ends of the surface of processing uniformly cut flat with simultaneously.
Summary of the invention
The present invention solves above technical problem, it is provided that a kind of rough turn axial direction positioning device, can realize workpiece axially positioned clamping, convenient and simple for operation.
For solving above-mentioned technical problem, present invention employs a kind of rough turn axial direction positioning device, including hollow mandrel, it is separately positioned on the pull bar at two ends in mandrel and movable conehead, described mandrel is outside equipped with ringfeder, described ringfeder is divided into multiple ringfeder sheet in the axial direction, described ringfeder sheet is attached on the outer circumference surface of mandrel by back-moving spring, multiple cone block it is provided with on described mandrel, the conical surface of described cone block is respectively at matching with the conical surface on pull bar and movable conehead, it is provided with spring between described pull bar and movable conehead, it is provided with positioning runner on described movable conehead, described movable conehead is by positioning runner and the holding screw slide anteroposterior in mandrel being arranged on mandrel.
Described ringfeder cylindrical uses the mode of annular knurl to be processed into zigzag, can get out of the way projection and the pit of cylinder liner blank endoporus when clamping.
Arrange in the middle of described ringfeder location hole, be provided with bolt in hole, described location, described bolt is fixedly mounted on mandrel, with prevent ringfeder tensioner, unclamp time ringfeder generation axile displacement.
The invention have the benefit that by the axially location clamping processing to blank, can cancel and partly finish reaming and half finish turning two procedures, shorten cylinder sleeve processing technique, improve product processing quality, reach the purpose of blank loss of weight, improve working (machining) efficiency, saved production cost.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
In figure, 1, mandrel；2, pull bar；3, ringfeder；4, sawtooth；5, bolt；6, movable conehead；7, positioning runner；8, holding screw；9, back-moving spring；10, cone block；11, spring；12, hole, location.
Detailed description of the invention
The present invention is further illustrated below in conjunction with the accompanying drawings.
With reference to Fig. 1, for a kind of rough turn axial direction positioning device, including hollow mandrel 1, it is separately positioned on the pull bar 2 at two ends in mandrel 1 and movable conehead 6, described mandrel 1 is outside equipped with ringfeder 3, described ringfeder 3 is divided into multiple ringfeder sheet in the axial direction, described ringfeder sheet is attached on the outer circumference surface of mandrel 1 by back-moving spring 9, multiple cone block 10 it is provided with on described mandrel 1, the conical surface of described cone block 10 is respectively at matching with the conical surface on pull bar 2 and movable conehead 6, it is provided with spring 11 between described pull bar 2 and movable conehead 6, it is provided with positioning runner 7 on described movable conehead 6, described movable conehead 6 is by positioning runner 7 and holding screw 8 slide anteroposterior in mandrel 1 being arranged on mandrel 1.
In the present invention, described ringfeder 3 is not an entirety, but is the most uniformly divided into three parts, and three part ringfeders are surrounded an entirety by the back-moving spring 9 in outer coil spring groove；During processing cylinder sleeve, pull bar 2 is pulled back by main shaft oil cylinder, movable conehead 6 is utilized air pressure to sinciput by tailstock thimble, cone block 10 the most outwards props up ringfeder 3 along the conical surface, and tensioner workpiece, when unclamping workpiece, tailstock thimble unclamps, pull bar 2 is pushed away forward by main shaft oil cylinder, and movable conehead 6 is promoted by spring 9 and is moved rearwards by, and cone block 10 glides along the conical surface and unclamps ringfeder 3, ringfeder 3 replys free state, completes clamping workpiece location.
Described ringfeder 3 cylindrical uses the mode of annular knurl to be processed into sawtooth 4 shape, can get out of the way projection and the pit of cylinder liner blank endoporus when clamping.
Arranging hole 12, location in the middle of described ringfeder 3, be provided with bolt 5 in hole, described location 12, described bolt 5 is fixedly mounted on mandrel 1, to prevent ringfeder 3 ringfeder 3 axile displacement when tensioner is unclamped.
Claims (3)
1. a rough turn axial direction positioning device, it is characterized in that: include hollow mandrel, it is separately positioned on the pull bar at two ends in mandrel and movable conehead, described mandrel is outside equipped with ringfeder, described ringfeder is divided into multiple ringfeder sheet in the axial direction, described ringfeder sheet is attached on the outer circumference surface of mandrel by back-moving spring, multiple cone block it is provided with on described mandrel, the conical surface of described cone block is respectively at matching with the conical surface on pull bar and movable conehead, it is provided with spring between described pull bar and movable conehead, it is provided with positioning runner on described movable conehead, described movable conehead is by positioning runner and the holding screw slide anteroposterior in mandrel being arranged on mandrel.
Rough turn axial direction positioning device the most according to claim 1, it is characterised in that: it is provided with sawtooth on described ringfeder cylindrical.
Rough turn axial direction positioning device the most according to claim 1 and 2, it is characterised in that: arranging hole, location in the middle of described ringfeder, be provided with bolt in hole, described location, described bolt is fixedly mounted on mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510020757.1A CN105834469A (en) | 2015-01-16 | 2015-01-16 | Rough turning axial positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510020757.1A CN105834469A (en) | 2015-01-16 | 2015-01-16 | Rough turning axial positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105834469A true CN105834469A (en) | 2016-08-10 |
Family
ID=56580082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510020757.1A Pending CN105834469A (en) | 2015-01-16 | 2015-01-16 | Rough turning axial positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105834469A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108356559A (en) * | 2018-04-04 | 2018-08-03 | 洛阳鹏起实业有限公司 | A kind of thin-wall pipe clamping tooling |
| CN110064770A (en) * | 2019-05-17 | 2019-07-30 | 泰州润骐防务科技有限公司 | It can be reduced rise core fixture and its application method of workpiece inner wall damage |
| CN110549145A (en) * | 2019-09-19 | 2019-12-10 | 浙江今飞凯达轮毂股份有限公司 | Internal stay formula clamping frock |
-
2015
- 2015-01-16 CN CN201510020757.1A patent/CN105834469A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108356559A (en) * | 2018-04-04 | 2018-08-03 | 洛阳鹏起实业有限公司 | A kind of thin-wall pipe clamping tooling |
| CN110064770A (en) * | 2019-05-17 | 2019-07-30 | 泰州润骐防务科技有限公司 | It can be reduced rise core fixture and its application method of workpiece inner wall damage |
| CN110064770B (en) * | 2019-05-17 | 2020-06-16 | 泰州润骐防务科技有限公司 | Core expansion clamp capable of reducing damage to inner wall of workpiece and using method thereof |
| CN110549145A (en) * | 2019-09-19 | 2019-12-10 | 浙江今飞凯达轮毂股份有限公司 | Internal stay formula clamping frock |
| CN110549145B (en) * | 2019-09-19 | 2024-04-09 | 浙江今飞凯达轮毂股份有限公司 | Internal stay formula clamping frock |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160810 |