CN203972902U - The outer swollen dabber clamp frock of lathe - Google Patents
The outer swollen dabber clamp frock of lathe Download PDFInfo
- Publication number
- CN203972902U CN203972902U CN201420410049.XU CN201420410049U CN203972902U CN 203972902 U CN203972902 U CN 203972902U CN 201420410049 U CN201420410049 U CN 201420410049U CN 203972902 U CN203972902 U CN 203972902U
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- valve core
- poppet valve
- lathe
- mandrel
- workpiece
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Abstract
The utility model relates to a kind of fixture, relate in particular to the outer swollen dabber clamp frock of a kind of lathe, comprise mandrel, mandrel one end is fixedly installed the excessive flange of lathe, the excessive flange of lathe is fixedly installed on lathe spindle, the mandrel other end is fixedly installed transparent cover, two groups of outer expansion pins are set on mandrel external cylindrical surface, two groups of outer expansion pins all arrange O type circle outward, mandrel inside arranges poppet valve core I and poppet valve core II, poppet valve core II is arranged on the outside of poppet valve core I, poppet valve core I and poppet valve core II contact with the bottom of two groups of outer expansion pins respectively, poppet valve core I inside arranges screw rod, between poppet valve core I and poppet valve core II, spring I is set, spring II is set between poppet valve core II and transparent cover.The utility model, the long cylinder of thin-walled class workpiece is added to man-hour, can guarantee the repetitive positioning accuracy of workpiece, and can avoid workpiece cantilever to have advantages of that good rigidly, quick-clamping and processing dimension are stable.
Description
Technical field
The utility model relates to a kind of fixture, relates in particular to a kind of outer swollen dabber clamp frock of lathe for the long cylinder of clamping thin-walled workpiece.
Background technology
The long cylindrical workpiece of machining industry thin-walled, when lathe processing excircles cylinder, generally adopts scroll chuck or soft pawl clamping workpiece, exists clamp distance short, positioning precision is low, workpiece cantilever, vibration of workpiece in turning process, add post-construction deformation, the adverse effect such as production efficiency is low.
Utility model content
The purpose of this utility model is: provide a kind of lathe outer swollen dabber clamp frock, can realize accurate location, quick-clamping during processing thin-walled long cylindrical workpiece, and processing dimension is stable on lathe.
The outer swollen dabber clamp frock of the utility model lathe comprises mandrel, mandrel one end is fixedly installed the excessive flange of lathe, the excessive flange of lathe is fixedly installed on lathe spindle, the mandrel other end is fixedly installed transparent cover, two groups of outer expansion pins are set on mandrel external cylindrical surface, two groups of outer expansion pins all arrange O type circle outward, mandrel inside arranges poppet valve core I and poppet valve core II, poppet valve core II is arranged on the outside of poppet valve core I, poppet valve core I and poppet valve core II contact with the bottom of two groups of outer expansion pins respectively, poppet valve core I inside arranges screw rod, between poppet valve core I and poppet valve core II, spring I is set, spring II is set between poppet valve core II and transparent cover, the installed load of spring I is greater than the service load of spring II.
Poppet valve core I and poppet valve core II front end conical degree of conical surface are 10 °～12 °.
The external cylindrical surface of mandrel and the gap of inner hole of workpiece are 0.05mm～0.10mm.
Outer expansion pin exposed junction is set to arc surface, and arc surface forms triangulation point with poppet valve core I and poppet valve core II and contacts, and intensity is good, and the outer expansion pin other end is set to inclined-plane, and the gradient on inclined-plane matches with the tapering of poppet valve core I and the poppet valve core II front end conical surface.
The excessive flange excircle cylinder of lathe is uniform arranges three trip bolts, trip bolt be used for regulating the centre of gyration of mandrel and the centre of gyration of lathe spindle concentric.
Stop nut is set on screw rod, and stop nut is arranged on the end of poppet valve core II, and dog screw is set on stop nut.
Operation principle and process: take endoporus and the left side of workpiece is benchmark, workpiece is enclosed within mandrel outside, with prong spanner, screw screw rod, poppet valve core I moves right, now the protruding holding workpieces left end of outer expansion pin in left side, when continuing to screw screw rod, when the spring force of spring I is greater than the spring force of spring II, poppet valve core II moves right, and the protruding holding workpieces right-hand member of outer expansion pin on right side, when the frictional force of outer expansion pin and workpiece is greater than Cutting Force, meet clamping requirement, workpiece is processed.
After workpiece processing, unscrew screw rod, be subject to the thrust poppet valve core I of spring I to left movement, the outer expansion pin in the convergent force effect left side of the O type circle on the left of being simultaneously subject to moves inward, holding workpieces left end endoporus no longer, when continuing to unscrew screw rod, when the spring force of spring I is less than the spring force of spring II, poppet valve core II is to left movement, moved inward by the outer expansion pin on convergent force effect right side of the O type circle on right side, holding workpieces right-hand member endoporus no longer, now workpiece becomes zero restriction state, takes off workpiece, completes whole process.
The beneficial effect that the utility model compared with prior art had is:
The outer swollen dabber clamp frock of lathe is adding man-hour to the long cylinder of thin-walled class workpiece, can guarantee the repetitive positioning accuracy of workpiece, save the centering time, and can avoid workpiece cantilever, convenient mounting and clamping is simple, good rigidly during turning, two fulcrum clampings, workpiece is stressed evenly not yielding, and finished size is stable, and production efficiency is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the profile of A-A in Fig. 1.
In figure: 1, the excessive flange of lathe; 2, trip bolt; 3, mandrel; 4, bolt; 5, O type circle; 6, outer expansion pin; 7, poppet valve core I; 8, screw rod; 9, poppet valve core II; 10, spring I; 11, stop nut; 12, dog screw; 13, spring II; 14, alignment pin; 15, transparent cover; 16, workpiece.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
As depicted in figs. 1 and 2, the outer swollen dabber clamp frock of lathe comprises mandrel 3, mandrel 3 one end are fixedly installed the excessive flange 1 of lathe by bolt 4, the excessive flange 1 of lathe is fixedly installed on lathe spindle, mandrel 3 other ends are fixedly installed transparent cover 15 by alignment pin 14, two groups of outer expansion pins 6 are set on mandrel 3 external cylindrical surfaces, two groups of outer O type circles 5 that all arrange of outer expansion pin 6, mandrel 3 inside arrange poppet valve core I 7 and poppet valve core II 9, poppet valve core II 9 is arranged on the outside of poppet valve core I 7, poppet valve core I 7 and poppet valve core II 9 contact with the bottom of two groups of outer expansion pins 6 respectively, poppet valve core I 7 inside arrange screw rod 8, between poppet valve core I 7 and poppet valve core II 9, spring I 10 is set, between poppet valve core II 9 and transparent cover 15, spring II 13 is set, the installed load of spring I 10 is greater than the service load of spring II 13.
Poppet valve core I 7 is 10 °～12 ° with poppet valve core II 9 front end conical degree of conical surfaces.
The gap of the external cylindrical surface of mandrel 3 and workpiece 16 endoporus is 0.05mm～0.10mm.
Outer expansion pin 6 exposed junctions are set to arc surface, and arc surface forms triangulation point with poppet valve core I 7 with poppet valve core II 9 and contacts, and intensity is good, and outer expansion pin 6 other ends are set to inclined-plane, and the gradient on inclined-plane matches with the tapering of poppet valve core I 7 and the poppet valve core II 9 front end conical surfaces.
Excessive flange 1 external cylindrical surface of lathe is uniform arranges three trip bolts 2, trip bolt 2 be used for regulating the centre of gyration of mandrel 3 and the centre of gyration of lathe spindle concentric.
Stop nut 11 is set on screw rod 8, and stop nut 11 is arranged on the end of poppet valve core II 9, and dog screw 12 is set on stop nut 11.
Outside using lathe during swollen dabber clamp frock, take endoporus and the left side of workpiece 16 is benchmark, workpiece 16 is enclosed within mandrel 3 outsides, with prong spanner, screw screw rod 8, poppet valve core I 7 moves right, protruding holding workpieces 16 left ends of outer expansion pin 6 now, when continuing to screw screw rod 8, when the spring force of spring I 10 is greater than the spring force of spring II 13, poppet valve core II 9 moves right, protruding holding workpieces 16 right-hand members of outer expansion pin 6 on right side, when the frictional force of outer expansion pin 6 and workpiece 16 is greater than Cutting Force, meet clamping requirement, workpiece 16 is processed.
After workpiece 16 processing, unscrew screw rod 8, be subject to the thrust poppet valve core I 7 of spring I 10 to left movement, the outer expansion pin 6 in the convergent force effect left side of the O type circle 5 on the left of being simultaneously subject to moves inward, holding workpieces 16 left end endoporus no longer, when continuing to unscrew screw rod 8, when the spring force of spring I 10 is less than the spring force of spring II 13, poppet valve core II 9 is to left movement, moved inward by the outer expansion pin 6 on convergent force effect right side of the O type circle 5 on right side, holding workpieces 16 right-hand member endoporus no longer, now 16 one-tenth zero restriction states of workpiece, take off workpiece 16, complete whole process.
In sum, the utility model, the long cylinder of thin-walled class workpiece is added to man-hour, can guarantee the repetitive positioning accuracy of workpiece 16, and can avoid workpiece 16 cantilevers to have advantages of that good rigidly, quick-clamping and processing dimension are stable.
Claims (6)
1. the outer swollen dabber clamp frock of a lathe, comprise mandrel (3), mandrel (3) one end is fixedly installed the excessive flange of lathe (1), the excessive flange of lathe (1) is fixedly installed on lathe spindle, mandrel (3) other end is fixedly installed transparent cover (15), it is characterized in that: on mandrel (3) external cylindrical surface, two groups of outer expansion pins (6) are set, the outer O type circle (5) that all arranges of two groups of outer expansion pins (6), mandrel (3) inside arranges poppet valve core I (7) and poppet valve core II (9), poppet valve core II (9) is arranged on the outside of poppet valve core I (7), poppet valve core I (7) and poppet valve core II (9) contact with the bottom of two groups of outer expansion pins (6) respectively, poppet valve core I (7) inside arranges screw rod (8), between poppet valve core I (7) and poppet valve core II (9), spring I (10) is set, between poppet valve core II (9) and transparent cover (15), spring II (13) is set.
2. the outer swollen dabber clamp frock of lathe according to claim 1, is characterized in that: described poppet valve core I (7) is 10 °～12 ° with poppet valve core II (9) front end conical degree of conical surface.
3. the outer swollen dabber clamp frock of lathe according to claim 1, is characterized in that: the gap of the external cylindrical surface of described mandrel (3) and workpiece (16) endoporus is 0.05mm～0.10mm.
4. the outer swollen dabber clamp frock of lathe according to claim 1, it is characterized in that: described outer expansion pin (6) exposed junction is set to arc surface, outer expansion pin (6) other end is set to inclined-plane, and the gradient on inclined-plane matches with the tapering of poppet valve core I (7) and poppet valve core II (9) the front end conical surface.
5. the outer swollen dabber clamp frock of lathe according to claim 1, is characterized in that: uniform three trip bolts (2) that arrange of the excessive flange of described lathe (1) external cylindrical surface.
6. the outer swollen dabber clamp frock of lathe according to claim 1, it is characterized in that: stop nut (11) is set on described screw rod (8), stop nut (11) is arranged on the end of poppet valve core II (9), and dog screw (12) is set on stop nut (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420410049.XU CN203972902U (en) | 2014-07-23 | 2014-07-23 | The outer swollen dabber clamp frock of lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420410049.XU CN203972902U (en) | 2014-07-23 | 2014-07-23 | The outer swollen dabber clamp frock of lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203972902U true CN203972902U (en) | 2014-12-03 |
Family
ID=51970388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420410049.XU Expired - Fee Related CN203972902U (en) | 2014-07-23 | 2014-07-23 | The outer swollen dabber clamp frock of lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203972902U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105252032A (en) * | 2015-10-13 | 2016-01-20 | 永安市培鑫工贸有限公司 | Valve body clamp |
| CN108127482A (en) * | 2017-12-30 | 2018-06-08 | 恒锋工具股份有限公司 | A kind of adjustable swelling detecting core shaft |
| CN108838278A (en) * | 2018-07-23 | 2018-11-20 | 太原科技大学 | It is a kind of for forming the vertical punching mould of motor casing label |
| CN110421484A (en) * | 2019-07-31 | 2019-11-08 | 沈阳建筑大学 | A kind of pneumatic inner support clamping device for processing ceramic bearing ring interior raceway groove |
| CN113333790A (en) * | 2021-07-07 | 2021-09-03 | 抚州长丰机械有限责任公司 | Machining device and method suitable for ultrathin-wall armature bushing |
-
2014
- 2014-07-23 CN CN201420410049.XU patent/CN203972902U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105252032A (en) * | 2015-10-13 | 2016-01-20 | 永安市培鑫工贸有限公司 | Valve body clamp |
| CN108127482A (en) * | 2017-12-30 | 2018-06-08 | 恒锋工具股份有限公司 | A kind of adjustable swelling detecting core shaft |
| CN108838278A (en) * | 2018-07-23 | 2018-11-20 | 太原科技大学 | It is a kind of for forming the vertical punching mould of motor casing label |
| CN110421484A (en) * | 2019-07-31 | 2019-11-08 | 沈阳建筑大学 | A kind of pneumatic inner support clamping device for processing ceramic bearing ring interior raceway groove |
| CN113333790A (en) * | 2021-07-07 | 2021-09-03 | 抚州长丰机械有限责任公司 | Machining device and method suitable for ultrathin-wall armature bushing |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20210723 |