CN102806477A - Device for clamping workpiece of machine tool - Google Patents
Device for clamping workpiece of machine tool Download PDFInfo
- Publication number
- CN102806477A CN102806477A CN 201210262291 CN201210262291A CN102806477A CN 102806477 A CN102806477 A CN 102806477A CN 201210262291 CN201210262291 CN 201210262291 CN 201210262291 A CN201210262291 A CN 201210262291A CN 102806477 A CN102806477 A CN 102806477A
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- workpiece
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- center
- front tip
- compression spring
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Abstract
The invention discloses a device for clamping a workpiece of a machine tool. The device comprises a three-jaw chuck and a back tip, wherein an elastic movable tip is arranged behind the three-jaw chuck, and comprises a taper sleeve; a plug, a compression spring and a front tip are arranged in the taper sleeve; the compression spring is connected between the plug and the front tip; the front tip is extended towards the inside of the three-jaw chuck; a limit block which is extended towards the inside of the three-jaw chuck is sleeve on the rod part of the front tip; and the center of the front tip and the center of the back tip are positioned on the same horizontal line. Due to the adoption of the elasticity of the compression spring, the front tip can be stretched and retracted in the axial direction, is matched with a central hole at the positioning reference end of the workpiece all the time and has a centering effect, and the other end of the workpiece is pressed by the back tip, so that the front tip is compressed to the positioning reference end surface of the workpiece and then is contacted with the limit block, the three-jaw chuck is tightly locked, and the axis of the workpiece in the length direction and the center of the workpiece are positioned on the same horizontal line; and therefore, the machining accuracy of the workpiece is ensured, and the yield of a product is improved.
Description
Technical field
The present invention relates to the machinery tools class, relate in particular to a kind of Machinetool workpiece clamping device.
Background technology
Digit Control Machine Tool has efficient height, flexible good, stable processing quality reliable characteristics; Existing most axial workpiece mainly adopts Digit Control Machine Tool processing, according to the clamping characteristics of Digit Control Machine Tool, workpiece placed in the scroll chuck clamps; Back centre withstands, and realizes the clamping to workpiece; Adopt this kind installation way when the positioning reference plane that is installed in the scroll chuck is uneven, produce when beating, cause Workpiece length direction size unstable, and the precision of its positioning reference has directly influenced the machining accuracy of back operation; And workpiece centre and the back centre part workpiece centre of scroll chuck end can not entirely accurate when utilizing the scroll chuck clamping guarantees on same horizontal plane, to cause guaranteeing the form and position tolerance of workpiece, influences the workpiece crudy.
Summary of the invention
Technical problem to above-mentioned existence the objective of the invention is: proposed a kind of Machinetool workpiece clamping device, the machining accuracy with operation behind the product that guarantees the positioning reference plane injustice improves product percent of pass.
Technical solution of the present invention is achieved in that a kind of Machinetool workpiece clamping device, comprises scroll chuck, back centre, and said scroll chuck rear is provided with the elasticity rolling center; Said elasticity rolling center comprises tapered sleeve; Be provided with obstruction, compression spring, preceding top in the said tapered sleeve; Said compression spring be connected stop up and before top between; Toply before said in scroll chuck, extend; Top bar portion is socketed with the limited block that in scroll chuck, extends before said; Top center and back centre center are on the same horizontal line before said.
Because the utilization of technique scheme, the present invention compared with prior art has advantage:
A kind of Machinetool workpiece clamping device of the present invention through the structural design of elasticity rolling center, utilizes the elasticity of compression spring; Tail spindle cooperates with workpiece positioning reference end centre bore to flexible all the time before can making, and plays the centering effect; The workpiece other end withstands with back centre; The top workpiece positioning reference end face that is compressed to contacts with limited block before making, scroll chuck locking, thus the lengthwise dimension and the workpiece centre that have guaranteed workpiece are on same horizontal line; Thereby guaranteed the machining accuracy of workpiece, improved product percent of pass.
Description of drawings
Below in conjunction with accompanying drawing technical scheme of the present invention is described further:
Accompanying drawing 1 is a kind of Machinetool workpiece clamping device structural representation of the present invention;
Wherein: 1, scroll chuck; 2, back centre; 3, elasticity rolling center; 4, tapered sleeve; 5, stop up; 6, compression spring; 7, preceding top; 8, limited block; 9, workpiece.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described.
Accompanying drawing 1 is a kind of Machinetool workpiece clamping device of the present invention, comprises scroll chuck 1, back centre 2, and said scroll chuck 1 rear is provided with elasticity rolling center 3; Said elasticity rolling center 3 comprises tapered sleeve 4; Be provided with in the said tapered sleeve 4 and stop up 5, compress spring 6, preceding top 7; Said compression spring 6 be connected stop up 5 and before between top 7; Top 7 extend in scroll chuck 1 before said; Top 7 bar portions are socketed with the limited block 8 that in scroll chuck 1, extends before said; Top 7 centers and back centre 2 centers are on the same horizontal line before said.With the centre bore of workpiece 9 positioning reference ends with before top 7 cooperate; Before top 7 play the centering effect, workpiece 9 other ends withstand with back centre 2, top 7 are compressed to workpiece 9 positioning reference end faces and contact with limited block 8 before making; With scroll chuck 1 workpiece 9 is locked at last; The assurance that this clamping process is strict workpiece 9 lengthwise dimension with and guaranteed workpiece 9 centers on same horizontal line, thereby guarantee the product precision, improve product percent of pass.
The foregoing description only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the personage that is familiar with this technology can understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (1)
1. a Machinetool workpiece clamping device comprises scroll chuck, back centre, it is characterized in that: said scroll chuck rear is provided with the elasticity rolling center; Said elasticity rolling center comprises tapered sleeve; Be provided with obstruction, compression spring, preceding top in the said tapered sleeve; Said compression spring be connected stop up and before top between; Toply before said in scroll chuck, extend; Top bar portion is socketed with the limited block that in scroll chuck, extends before said; Top center and back centre center are on the same horizontal line before said.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210262291 CN102806477A (en) | 2012-07-27 | 2012-07-27 | Device for clamping workpiece of machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210262291 CN102806477A (en) | 2012-07-27 | 2012-07-27 | Device for clamping workpiece of machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102806477A true CN102806477A (en) | 2012-12-05 |
Family
ID=47230439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210262291 Pending CN102806477A (en) | 2012-07-27 | 2012-07-27 | Device for clamping workpiece of machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102806477A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002175A (en) * | 2014-06-18 | 2014-08-27 | 遵义精星航天电器有限责任公司 | Turning machining locating converter |
| CN104708536A (en) * | 2015-03-17 | 2015-06-17 | 青阳县鑫安特汽车零配件有限公司 | Automobile cross-shaped shaft grinding and clamping device |
| CN104849038A (en) * | 2015-05-25 | 2015-08-19 | 曼斯顿电梯(浙江)有限公司 | Automatic clamping pulley inspection machine |
| CN105081796A (en) * | 2014-05-07 | 2015-11-25 | 哈尔滨飞机工业集团有限责任公司 | Quick positioning and clamping tool |
| CN109551269A (en) * | 2018-11-30 | 2019-04-02 | 河南航天精工制造有限公司 | A kind of numerical control positioning clamping tooling and clamping method |
| CN110757332A (en) * | 2019-08-16 | 2020-02-07 | 韶关市技师学院(韶关市高级技工学校、韶关市职工大学、韶关市农业学校) | Double-tip positioning device |
-
2012
- 2012-07-27 CN CN 201210262291 patent/CN102806477A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081796A (en) * | 2014-05-07 | 2015-11-25 | 哈尔滨飞机工业集团有限责任公司 | Quick positioning and clamping tool |
| CN104002175A (en) * | 2014-06-18 | 2014-08-27 | 遵义精星航天电器有限责任公司 | Turning machining locating converter |
| CN104002175B (en) * | 2014-06-18 | 2016-03-02 | 遵义精星航天电器有限责任公司 | A kind of turnery processing location converter |
| CN104708536A (en) * | 2015-03-17 | 2015-06-17 | 青阳县鑫安特汽车零配件有限公司 | Automobile cross-shaped shaft grinding and clamping device |
| CN104708536B (en) * | 2015-03-17 | 2017-10-31 | 青阳县鑫安特汽车零配件有限公司 | A kind of automobile cross axle is ground clamping device |
| CN104849038A (en) * | 2015-05-25 | 2015-08-19 | 曼斯顿电梯(浙江)有限公司 | Automatic clamping pulley inspection machine |
| CN109551269A (en) * | 2018-11-30 | 2019-04-02 | 河南航天精工制造有限公司 | A kind of numerical control positioning clamping tooling and clamping method |
| CN110757332A (en) * | 2019-08-16 | 2020-02-07 | 韶关市技师学院(韶关市高级技工学校、韶关市职工大学、韶关市农业学校) | Double-tip positioning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121205 |