CN203993534U - A kind of positioning fixture of fixing thin-wall tube-shaped part - Google Patents
A kind of positioning fixture of fixing thin-wall tube-shaped part Download PDFInfo
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- CN203993534U CN203993534U CN201420375579.5U CN201420375579U CN203993534U CN 203993534 U CN203993534 U CN 203993534U CN 201420375579 U CN201420375579 U CN 201420375579U CN 203993534 U CN203993534 U CN 203993534U
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- expansion cylinder
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Abstract
The utility model belongs to thin-wall tube-shaped part clamp designing technique, and a kind of positioning fixture of fixing thin-wall tube-shaped part is provided, and is made up of swivel nut 1, expansion cylinder 2 and mandrel 3; Mandrel 3 is Step Shafts, is respectively from left to right step section, conical section and thread segment; Expansion cylinder 2 is the thin wall cylinder that left and right two-port is unlimited, the endoporus matched in clearance of the diameter of the external cylindrical surface of expansion cylinder 2 and thin wall cylinder part 4 to be positioned, and the inner chamber cone angle of expansion cylinder 2 is α.Swivel nut 1 left end is tapered, acts in the groove of expansion cylinder 2, and the interior left end intracavity diameter of swivel nut 1 is greater than mandrel thread section, and swivel nut 1 right-hand member inner chamber is internal thread, matches with the thread segment of mandrel 3.
Description
Technical field
The utility model belongs to thin-wall tube-shaped part clamp designing technique, relates to the fixing positioning fixture of a kind of thin-wall tube-shaped part.
Background technology
Field of machining needs processing thin-walled tubular part, cylindrical member is because inwall is thinner, so easily cause the clamping deformation of part by the method for cylindrical clamping, although can prevent the distortion that clamping causes part by the method for end face clamping, still can cause the machining deformation of part when turning, grinding to the radial load of part.So fixture generally adopts internal-expansion type clamping means.Current a kind of thin-wall tube-shaped part adopts the plug location with tapering, and its shortcoming is: plug is without versatility, and every kind of part needs a special core rod, and fixture quantity is many, has increased manufacturing cost.
Summary of the invention
The technical problem to be solved in the present invention: a kind of positioning fixture of fixing thin-wall tube-shaped part is provided, there is versatility, to reduce the quantity of fixture, cut down finished cost.
Technical scheme of the present invention: a kind of thin wall cylinder part external grinding gripping device, is characterized in that: it is made up of swivel nut 1, expansion cylinder 2 and mandrel 3, mandrel 3 is Step Shafts, it is respectively from left to right step section, conical section and thread segment, the external diameter of step section is greater than the diameter of bore of thin wall cylinder part 4 to be positioned, and be less than the outside diameter of thin wall cylinder part 4 to be positioned, there is center positioning hole left side in step section, the left end diameter of conical section is greater than right-hand member diameter, the left end diameter of conical section is less than the diameter of step section, the left end of conical section is coaxially connected with the right-hand member of step section, conical section cone angle is α=12 °～30 °, the axial length of conical section is not less than the length of thin wall cylinder part 4 to be positioned, the left end of thread segment is coaxially connected with conical section right-hand member, there is thread segment center positioning hole in the right side of thread segment, expansion cylinder 2 is the thin wall cylinder that left and right two-port is unlimited, the endoporus matched in clearance of the diameter of the external cylindrical surface of expansion cylinder 2 and thin wall cylinder part 4 to be positioned, the inner chamber cone angle of expansion cylinder 2 is α.Swivel nut 1 left end is tapered, acts in the groove of expansion cylinder 2, and the interior left end intracavity diameter of swivel nut 1 is greater than mandrel thread section, and swivel nut 1 right-hand member inner chamber is internal thread, matches with the thread segment of mandrel 3.
Beneficial effect of the present invention: the thin-wall tube-shaped part for different inner diameters has versatility, has reduced the quantity of fixture, has reduced processing cost.The utility model has been realized the clamping to thin wall cylinder part by the bulging effect of expansion cylinder, makes the clamp force distribution of thin wall cylinder part even, has reduced the clamping deformation of thin wall cylinder part, has also avoided traditional handicraft mandrel shortcoming more easy to wear.Novel being specially adapted to of this use produced in batches.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is screw bushing structure schematic diagram of the present utility model.
Fig. 3 is core shaft structure schematic diagram of the present utility model.
Detailed description of the invention
A kind of thin wall cylinder part external grinding gripping device, as shown in Figure 1, 2, 3, it is made up of swivel nut 1, expansion cylinder 2 and mandrel 3, mandrel 3 is Step Shafts, it is respectively from left to right step section, conical section and thread segment, the external diameter of step section is greater than the diameter of bore of thin wall cylinder part 4 to be positioned, and be less than the outside diameter of thin wall cylinder part 4 to be positioned, there is center positioning hole left side in step section, the left end diameter of conical section is greater than right-hand member diameter, the left end diameter of conical section is less than the diameter of step section, the left end of conical section is coaxially connected with the right-hand member of step section, conical section cone angle is α=12 °～30 °, the axial length of conical section is not less than the length of thin wall cylinder part 4 to be positioned, the left end of thread segment is coaxially connected with conical section right-hand member, there is thread segment center positioning hole in the right side of thread segment, expansion cylinder 2 is the thin wall cylinder that left and right two-port is unlimited, the endoporus matched in clearance of the diameter of the external cylindrical surface of expansion cylinder 2 and thin wall cylinder part 4 to be positioned, the inner chamber cone angle of expansion cylinder 2 is α.Swivel nut 1 left end is tapered, acts in the groove of expansion cylinder 2, and the interior left end intracavity diameter of swivel nut 1 is greater than mandrel thread section, and swivel nut 1 right-hand member inner chamber is internal thread, matches with the thread segment of mandrel 3.
Using method of the present utility model is: first the endoporus of the diameter of an external cylindrical surface and thin wall cylinder part to be positioned is the expansion cylinder of matched in clearance, thin wall cylinder part to be positioned is enclosed within on expansion cylinder, and then expansion cylinder is enclosed within to mandrel conical section top cylinder, screw the nut of right-hand member, it is large that the external cylindrical surface diameter of expansion cylinder becomes, by thin wall cylinder part tensioner to be positioned.At this moment on grinding machine, locate and just can carry out cylindricalo grinding, turning etc. to thin wall cylinder part and processed by the centre bore at mandrel two ends.
Claims (1)
1. a positioning fixture for fixing thin-wall tube-shaped part, is characterized in that, comprising: it is made up of swivel nut (1), expansion cylinder (2) and mandrel (3), mandrel (3) is a Step Shaft, it is respectively from left to right step section, conical section and thread segment, the external diameter of step section is greater than the diameter of bore of thin wall cylinder part to be positioned (4), and be less than the outside diameter of thin wall cylinder part to be positioned (4), there is center positioning hole left side in step section, the left end diameter of conical section is greater than right-hand member diameter, the left end diameter of conical section is less than the diameter of step section, the left end of conical section is coaxially connected with the right-hand member of step section, conical section cone angle is α=12 °～30 °, the axial length of conical section is not less than the length of thin wall cylinder part to be positioned (4), the left end of thread segment is coaxially connected with conical section right-hand member, there is thread segment center positioning hole in the right side of thread segment, expansion cylinder (2) is a thin wall cylinder that left and right two-port is unlimited, the endoporus matched in clearance of the diameter of the external cylindrical surface of expansion cylinder (2) and thin wall cylinder part to be positioned (4), the inner chamber cone angle of expansion cylinder (2) is α, swivel nut (1) left end is tapered, act in the groove of expansion cylinder (2), the interior left end intracavity diameter of swivel nut (1) is greater than mandrel thread section, and swivel nut (1) right-hand member inner chamber is internal thread, matches with the thread segment of mandrel (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420375579.5U CN203993534U (en) | 2014-07-08 | 2014-07-08 | A kind of positioning fixture of fixing thin-wall tube-shaped part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420375579.5U CN203993534U (en) | 2014-07-08 | 2014-07-08 | A kind of positioning fixture of fixing thin-wall tube-shaped part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203993534U true CN203993534U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420375579.5U Expired - Fee Related CN203993534U (en) | 2014-07-08 | 2014-07-08 | A kind of positioning fixture of fixing thin-wall tube-shaped part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203993534U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106180783A (en) * | 2016-08-19 | 2016-12-07 | 青岛石大石仪科技有限责任公司 | Elongated thin metallic tubd processing mold and mould, metal tube processing method |
| CN106624857A (en) * | 2016-12-29 | 2017-05-10 | 贵州航天控制技术有限公司 | Combined coaxial processing and assembling structure for left and right buoys |
| CN109015039A (en) * | 2018-10-20 | 2018-12-18 | 贵州航铄工业股份有限公司 | A kind of thin-walled parts processing bit combination fixture with threaded hole |
| CN109351998A (en) * | 2018-11-20 | 2019-02-19 | 中国航发贵州黎阳航空动力有限公司 | A kind of taper for thin-walled tubular piece processing rises state plug |
| CN110814878A (en) * | 2019-11-13 | 2020-02-21 | 中国航发动力股份有限公司 | Device for processing rubber sealing conical core |
| CN114074192A (en) * | 2020-08-18 | 2022-02-22 | 航天科工惯性技术有限公司 | Radial expansion device and method for thin-wall cylindrical structural part |
-
2014
- 2014-07-08 CN CN201420375579.5U patent/CN203993534U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106180783A (en) * | 2016-08-19 | 2016-12-07 | 青岛石大石仪科技有限责任公司 | Elongated thin metallic tubd processing mold and mould, metal tube processing method |
| CN106624857A (en) * | 2016-12-29 | 2017-05-10 | 贵州航天控制技术有限公司 | Combined coaxial processing and assembling structure for left and right buoys |
| CN109015039A (en) * | 2018-10-20 | 2018-12-18 | 贵州航铄工业股份有限公司 | A kind of thin-walled parts processing bit combination fixture with threaded hole |
| CN109351998A (en) * | 2018-11-20 | 2019-02-19 | 中国航发贵州黎阳航空动力有限公司 | A kind of taper for thin-walled tubular piece processing rises state plug |
| CN110814878A (en) * | 2019-11-13 | 2020-02-21 | 中国航发动力股份有限公司 | Device for processing rubber sealing conical core |
| CN114074192A (en) * | 2020-08-18 | 2022-02-22 | 航天科工惯性技术有限公司 | Radial expansion device and method for thin-wall cylindrical structural part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20180708 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |