CN102873564B - Automatic centering fixture for multi-tool lathe - Google Patents
Automatic centering fixture for multi-tool lathe Download PDFInfo
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- CN102873564B CN102873564B CN201210386294.7A CN201210386294A CN102873564B CN 102873564 B CN102873564 B CN 102873564B CN 201210386294 A CN201210386294 A CN 201210386294A CN 102873564 B CN102873564 B CN 102873564B
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- elastic jacket
- central shaft
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- cavity
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Abstract
The invention relates to a machining fixture, in particular to an automatic centering fixture for a multi-tool lathe. The multi-tool fixture comprises a flange base provided with a plurality of bolt holes, a central axle hole and a cavity and is characterized in that internal thread sections are turned in the cavity of the flange base, an elastic jacket is arranged in the cavity in a threaded connection mode, the inner wall of the elastic jacket is a conical surface, a radially arranged lock screw is arranged on the flange base and faces the elastic jacket, a workpiece positioning gland is arranged at the outer end of the flange base, an annular boss is arranged on the outer end face of the positioning gland, densely distributed convex teeth are arranged on the outer end face of the annular boss, a central shaft is inserted into a shaft hole of the flange base, penetrates through the elastic jacket and extends to the outer part of the positioning gland, a nut and an open washer are arranged at the outer end of the central shaft, and an ejection spring is arranged in the elastic jacket. The automatic centering fixture for the multi-tool lathe solves the problems of difficulty in centering clamp, low production efficiency and the like which are caused by a reason that an ordinary chuck is used for clamping a conical handle piece, and is mainly applied to clamping working pieces on lathes.
Description
Technical field
The present invention relates to machining tool clamp, especially a kind of multicut lather self-centering clamping tool.
Background technology
For the workpiece with handle (taper) structure class as clutch disk core (referring to Fig. 1), need on lathe, process two faces of cylinder and step end face, normally adopt three-jaw or chuck to coordinate tailstock thimble to clamp, adopt scroll chuck for push bar structure, although can self-centering, but clamping built on the sand, operator need to hold out against with very large power shake tailstock, conventionally complete after a face of cylinder processing, need to again shake tailstock holds out against, otherwise workpiece is loosening, affect the machining accuracy of second face of cylinder or step surface; And although it is comparatively firm to adopt chuck to clamp, can not self-centering, need workman repeatedly to adjust claw and complete centering, not accurate, efficiency is low, and need to shake energetically tailstock top tight workpiece equally, therefore existing clamping and loading method centering clamps difficulty, and labor strength is large, and production efficiency is low.
Summary of the invention
Object of the present invention will solve exactly the centering of Vehicle Processing handle class workpiece and clamp difficulty, and labor strength is large, and the problem that production efficiency is low provides a kind of multicut lather self-centering clamping tool.
Concrete scheme of the present invention is: a kind of multicut lather self-centering clamping tool, there is flange seat, on flange seat, have some bolts hole and central shaft hole and cavity, it is characterized in that: in flange seat cavity, car has internal thread segment, in cavity, be threaded elastic jacket is housed, elastic jacket inwall is taper surface, just elastic jacket is equipped with the lock-screw of radial arrangement on flange seat; In flange seat outer end, workpiece positioning gland is installed, the outer face of positioning gland is designed with annular boss, is designed with densely covered double wedge on annular boss outer face; Central shaft is installed in flange seat axis hole, extends to the outside of positioning gland through elastic jacket, and the outer end of central shaft is fitted with nut and open washer, and ejector spring is housed in elastic jacket.
Elastic jacket described in the present invention is to be made up of two sections of external thread section and resilient sleeve, has at least three expansion breach in resilient sleeve, and the taper surface in elastic jacket is positioned at resilient sleeve one side to be arranged, large mouthful outwardly.
The tapering of the inner conical of elastic jacket described in the present invention face is identical with workpiece handle tapering.
The nut of the outer end of central shaft described in utility model can be made one with central shaft and be ledge structure.
Positioning gland described in utility model adopts seam location structure to be connected with flange seat.
Operation principle of the present invention is: when use, adopt bolt fixedly to dock on flange seat of the present invention and lathe power transmission dish, and equipped hydraulic pressure draw-bar passes with the central shaft the present invention and is connected on lathe from power drive plate centre bore.When clamping, workpiece is through on central shaft, the handle section of workpiece puts in elastic jacket, the step end face of workpiece handle tail end is close to positioning gland outer end annular boss and arranges (referring to Fig. 2), between workpiece and the nut of central shaft outer end, plug open washer, start lathe hydraulic pull bar, make central shaft draw workpiece and positioning gland to complete clamping by nut and open washer, elastic jacket makes workpiece complete self-centering simultaneously, start lathe drive plate, operation knife rest can complete the multi-cutter process of workpiece, after machining, unclamp hydraulic pressure draw-bar and central shaft takes off open washer, under the effect of ejector spring, workpiece can be deviate from automatically from spring chuck, workpiece under fast fetching.
Structure of the present invention is ingenious, reasonable in design, simple and quick, and clamping is light, automatically completes centering and clamps, and production efficiency improves greatly, compares traditional clamping efficiency and improves more than four times.
Brief description of the drawings
Fig. 1 is clutch disk core front view;
Fig. 2 is the main cutaway view of general structure of the present invention;
Fig. 3 is the main cutaway view of elastic jacket;
Fig. 4 is elastic jacket right view;
Fig. 5 is the right view of positioning gland.
In figure: 1-flange seat, 2-lock-screw, 3-elastic jacket, 4-positioning gland, 5-ejector spring, 6-workpiece, 7-open washer, 8-nut, 9-bolt, 10-central shaft, 11-annular boss, 12-cavity, 13-central shaft hole, 14-bolt hole, 15-resilient sleeve, 16-external thread section, 17-expands breach, 18-double wedge.
Detailed description of the invention
Referring to Fig. 2, the present invention has flange seat 1, on flange seat 1, have four bolts hole 14 and central shaft hole 13 and cavity 12, particularly: in flange seat 1 cavity 12, car has internal thread segment, in cavity 12, be threaded elastic jacket 3 is housed, elastic jacket 3 inwalls are taper surface, just elastic jacket 3 are equipped with the lock-screw 2 of radial arrangement on flange seat 1; Adopt bolt 9 that workpiece positioning gland 4 is installed in flange seat 1 outer end, the outer face of positioning gland 4 is designed with annular boss 11, is designed with densely covered double wedge 18(referring to Fig. 5 on annular boss 11 outer faces); Central shaft 10 is installed in flange seat central shaft hole 13, and central shaft 10 extends to the outside of positioning gland 4 through elastic jacket 3, and the outer end of central shaft 10 is fitted with nut 8 and open washer 7, and ejector spring 5 is housed in elastic jacket 3.
Elastic jacket 3 described in the present embodiment is to form (referring to Fig. 3,4) by 15 two sections of external thread section 16 and resilient sleeve, has at least three expansion breach 17 in resilient sleeve 15, and the taper surface in elastic jacket 3 is positioned at resilient sleeve 15 1 sides to be arranged, large mouthful outwardly.
The tapering of the inner conical of elastic jacket 3 described in the present embodiment face is identical with workpiece 6 handle taperings.
The nut 8 of the outer end of central shaft 10 described in the present embodiment can be made one with central shaft 10 and be ledge structure.
Positioning gland 4 described in the present embodiment adopts seam location structure to be connected with flange seat 1.
More than preferred forms of the present invention, certainly in the present invention and component structural also can make equivalents, all belong to protection scope of the present invention.
Claims (5)
1. multicut lather self-centering clamping tool, there is flange seat, on flange seat, have some bolts hole and central shaft hole and cavity, it is characterized in that: in flange seat cavity, car has internal thread segment, in cavity, be threaded elastic jacket is housed, elastic jacket inwall is taper surface, just elastic jacket is equipped with the lock-screw of radial arrangement on flange seat; In flange seat outer end, workpiece positioning gland is installed, the outer face of positioning gland is designed with annular boss, is designed with densely covered double wedge on annular boss outer face; Central shaft is installed in flange seat central shaft hole, extends to the outside of positioning gland through elastic jacket, and the outer end of central shaft is fitted with nut and open washer, and ejector spring is housed in elastic jacket.
2. multicut lather self-centering clamping tool according to claim 1, it is characterized in that: described elastic jacket is to be made up of two sections of external thread section and resilient sleeve, in resilient sleeve, have at least three expansion breach, the taper surface in elastic jacket is positioned at resilient sleeve one side to be arranged, large mouthful outwardly.
3. according to the multicut lather self-centering clamping tool described in claim 1, it is characterized in that: the tapering of described elastic jacket inner conical face is identical with workpiece handle tapering.
4. multicut lather self-centering clamping tool according to claim 1, is characterized in that: the nut of described central shaft outer end can be made one with central shaft and be ledge structure.
5. multicut lather self-centering clamping tool according to claim 1, is characterized in that: described positioning gland adopts seam location structure to be connected with flange seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210386294.7A CN102873564B (en) | 2012-10-12 | 2012-10-12 | Automatic centering fixture for multi-tool lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210386294.7A CN102873564B (en) | 2012-10-12 | 2012-10-12 | Automatic centering fixture for multi-tool lathe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102873564A CN102873564A (en) | 2013-01-16 |
| CN102873564B true CN102873564B (en) | 2014-08-06 |
Family
ID=47475196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210386294.7A Active CN102873564B (en) | 2012-10-12 | 2012-10-12 | Automatic centering fixture for multi-tool lathe |
Country Status (1)
| Country | Link |
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| CN (1) | CN102873564B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105195770A (en) * | 2015-11-03 | 2015-12-30 | 黄石市中天机械制造有限责任公司 | Hydraulic automatic locking chuck |
| CN107243832B (en) * | 2017-07-06 | 2023-04-14 | 南华大学 | Automatic clamping fixture for grinding air vane |
| CN108000352A (en) * | 2017-11-29 | 2018-05-08 | 成都工具研究所有限公司 | Fine-tuning Ifold flange and its adjusting method |
| CN110587341B (en) * | 2019-08-29 | 2024-05-14 | 南京中船绿洲机器有限公司 | Short shaft high-precision rapid clamping device and clamping method |
| CN113231868B (en) * | 2021-04-26 | 2022-09-02 | 广州市昊志机电股份有限公司 | Machine tool machining positioning mechanism |
| CN114952228B (en) * | 2022-07-05 | 2023-11-28 | 珠海格力智能装备有限公司 | Robot clamp for expansion joint of multi-specification expansion joint in automatic expansion joint system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101518875A (en) * | 2008-11-24 | 2009-09-02 | 中国航天科技集团公司长征机械厂 | Precision positioning and clamping device of lathe |
| CN201862802U (en) * | 2010-11-09 | 2011-06-15 | 强胜精密机械(苏州)有限公司 | Inner expansion type positioning clamp |
| CN201940840U (en) * | 2011-01-27 | 2011-08-24 | 临汾华翔纬泰精工机械有限公司 | Elastic clamp |
| CN202825319U (en) * | 2012-10-12 | 2013-03-27 | 黄石市中天机械制造有限责任公司 | Multi-cutter lathe automatic centering tool clamp |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004322291A (en) * | 2003-04-28 | 2004-11-18 | Denso Corp | Workpiece holder |
-
2012
- 2012-10-12 CN CN201210386294.7A patent/CN102873564B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101518875A (en) * | 2008-11-24 | 2009-09-02 | 中国航天科技集团公司长征机械厂 | Precision positioning and clamping device of lathe |
| CN201862802U (en) * | 2010-11-09 | 2011-06-15 | 强胜精密机械(苏州)有限公司 | Inner expansion type positioning clamp |
| CN201940840U (en) * | 2011-01-27 | 2011-08-24 | 临汾华翔纬泰精工机械有限公司 | Elastic clamp |
| CN202825319U (en) * | 2012-10-12 | 2013-03-27 | 黄石市中天机械制造有限责任公司 | Multi-cutter lathe automatic centering tool clamp |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2004-322291A 2004.11.18 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102873564A (en) | 2013-01-16 |
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