CN102139453A - Fixture structure for machining large cylindrical part - Google Patents
Fixture structure for machining large cylindrical part Download PDFInfo
- Publication number
- CN102139453A CN102139453A CN 201010551426 CN201010551426A CN102139453A CN 102139453 A CN102139453 A CN 102139453A CN 201010551426 CN201010551426 CN 201010551426 CN 201010551426 A CN201010551426 A CN 201010551426A CN 102139453 A CN102139453 A CN 102139453A
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- China
- Prior art keywords
- cylindrical part
- clamp structure
- bearing
- part processing
- core axle
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Abstract
The invention provides a fixture structure for machining a large cylindrical part, which can carry out the precision graduation and location to reduce the production cost when the circumference of the cylindrical part to be machined is uniformly provided with holes , and can effectively solve the problem that the precision and the quality of machining are influenced by the radial displacement in the traditional machining process. The fixture structure for machining the large cylindrical part comprises a base and a locating mandril, wherein the locating mandril penetrates through a bearing and is supported in a mounting hole of the base by the bearing. The fixture structure for machining the large cylindrical part is characterized by further comprising a graduation and location device.
Description
Technical field
The present invention relates to large-scale cylindrical part processing tool field, be specially the clamp structure that is used for large-scale cylindrical part processing.
Background technology
A kind of large-scale cylindrical part that is used for aero-engine, its structure is seen shown in Figure 1, it need process the many location of carrying out circular hole processing by numerical control machining center of circular hole, its processing cost height at the big cylindrical part of doing along side face at the circular hole 12 of cylinder back-end along 8 five equilibriums of side face processing in the past; Clamp structure in the past, its positioning core axle is installed on pedestal by common bearing, and workpiece is prone to radial-play in process, thereby influences machining accuracy and quality.
Summary of the invention
At the problems referred to above, the invention provides the clamp structure that is used for the processing of large-scale cylindrical part, when the circumferential uniform hole of processing barrier part part, it can carry out accurate calibration location, reduces production costs; And can effectively solve the problem that influences machining accuracy and quality in the process in the past owing to radial-play.
Its technical scheme is such, and it comprises pedestal and positioning core axle, and described positioning core axle passes bearing and is supported on described pedestal installing hole by described bearing, and it is characterized in that: it also comprises indexing positioning device.
It is further characterized in that: described indexing positioning device comprises index dial and dowel mechanism; Described index dial is installed on described positioning core axle outer end and fixes by nut; Have the calibration locating hole on the described index dial; Described dowel mechanism comprises support and location taper pin; Described location taper pin is installed on described support, and described support is installed on described pedestal outside; The part oriented side of described positioning core axle is set with copper sheathing; Cylindrical part to be processed is set in described copper sheathing outside, and compresses by the outer end cover plate; Described bearing adopts roller bearing.
The plug clamp structure that is used for large-scale cylindrical part processing of the present invention, it guarantees the positional precision of branch circular holes such as processing parts end by adopting indexing positioning device, thereby do not need to use large-scale numerical control machining center to position processing, reduced tooling cost; In addition, replace plain bearing in the past with roller bearing between its positioning core axle and the pedestal, effectively avoided mandrel radial-play in process, improved the precision of cylindrical part processing.
Description of drawings
Fig. 1 is the structural representation of processing parts of the present invention;
Fig. 2 is a kind of clamp structure schematic diagram that is used for large-scale cylindrical part processing of the present invention;
Fig. 3 is the structural representation of index dial 4 in the structure of the present invention.
The specific embodiment
See Fig. 2, Fig. 3, it comprises pedestal 1 and positioning core axle 2, and positioning core axle 2 passes bearing 3 and is supported on pedestal 1 installing hole by bearing 3, and it also comprises indexing positioning device.Indexing positioning device comprises index dial 4 and dowel mechanism; Index dial 4 is installed on positioning core axle 2 outer ends and fixing by nut 5; Have calibration locating hole 6 on the index dial 4; Dowel mechanism comprises support 7 and location taper pin 8; Location taper pin 7 is installed on support 6, and support 6 is installed on pedestal 1 outside; The part oriented side of positioning core axle 2 is set with copper sheathing 9; Cylindrical part 10 to be processed is set in copper sheathing 9 outsides, and compresses by outer end cover plate 11; Bearing 3 adopts roller bearing.Index dial 4 in the structure of the present invention, it can process the requirement of circumferential hole count and pitch-row according to actual cylindrical part, changes.
Claims (6)
1. be used for the clamp structure of large-scale cylindrical part processing, it comprises pedestal and positioning core axle, and described positioning core axle passes bearing and is supported on described pedestal installing hole by described bearing, and it is characterized in that: it also comprises indexing positioning device.
2. the clamp structure that is used for large-scale cylindrical part processing according to claim 1, it is characterized in that: described indexing positioning device comprises index dial and dowel mechanism.
3. the clamp structure that is used for large-scale cylindrical part processing according to claim 2, it is characterized in that: described index dial is installed on described positioning core axle outer end and fixes by nut, has the calibration locating hole on the described index dial.
4. the clamp structure that is used for large-scale cylindrical part processing according to claim 2 is characterized in that: described dowel mechanism comprises support and location taper pin, and described location taper pin is installed on described support, and described support is installed on described pedestal outside.
5. the clamp structure that is used for large-scale cylindrical part processing according to claim 1, it is characterized in that: the part oriented side of described positioning core axle is set with copper sheathing, and cylindrical part to be processed is set in described copper sheathing outside, and compresses by the outer end cover plate.
6. the clamp structure that is used for large-scale cylindrical part processing according to claim 1, it is characterized in that: described bearing adopts roller bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010551426 CN102139453A (en) | 2010-11-19 | 2010-11-19 | Fixture structure for machining large cylindrical part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010551426 CN102139453A (en) | 2010-11-19 | 2010-11-19 | Fixture structure for machining large cylindrical part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102139453A true CN102139453A (en) | 2011-08-03 |
Family
ID=44407370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010551426 Pending CN102139453A (en) | 2010-11-19 | 2010-11-19 | Fixture structure for machining large cylindrical part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102139453A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103934703A (en) * | 2014-05-08 | 2014-07-23 | 台山市金桥铝型材厂有限公司 | Multi-angle drilling and positioning fixture |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3179428A (en) * | 1961-08-29 | 1965-04-20 | Birfield Eng Ltd | Work holding means |
| US6015154A (en) * | 1998-05-28 | 2000-01-18 | Hydra-Lock Corporation | Large displacement hydrostatic workpiece holder |
| CN200963759Y (en) * | 2006-09-13 | 2007-10-24 | 重庆宗申技术开发研究有限公司 | Fixture for processing circumference distribution holes |
| CN201511164U (en) * | 2009-09-17 | 2010-06-23 | 中国石油化工股份有限公司 | Special rapid-indexing square-milling fixture |
| CN201900466U (en) * | 2010-11-19 | 2011-07-20 | 无锡曙光模具有限公司 | Fixture structure for processing large-sized cylindrical parts |
-
2010
- 2010-11-19 CN CN 201010551426 patent/CN102139453A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3179428A (en) * | 1961-08-29 | 1965-04-20 | Birfield Eng Ltd | Work holding means |
| US6015154A (en) * | 1998-05-28 | 2000-01-18 | Hydra-Lock Corporation | Large displacement hydrostatic workpiece holder |
| CN200963759Y (en) * | 2006-09-13 | 2007-10-24 | 重庆宗申技术开发研究有限公司 | Fixture for processing circumference distribution holes |
| CN201511164U (en) * | 2009-09-17 | 2010-06-23 | 中国石油化工股份有限公司 | Special rapid-indexing square-milling fixture |
| CN201900466U (en) * | 2010-11-19 | 2011-07-20 | 无锡曙光模具有限公司 | Fixture structure for processing large-sized cylindrical parts |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103934703A (en) * | 2014-05-08 | 2014-07-23 | 台山市金桥铝型材厂有限公司 | Multi-angle drilling and positioning fixture |
| CN103934703B (en) * | 2014-05-08 | 2015-04-01 | 台山市金桥铝型材厂有限公司 | Multi-angle drilling and positioning fixture |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110803 |