CN202317098U - Steel ball centering inner hole expanding clamp - Google Patents
Steel ball centering inner hole expanding clamp Download PDFInfo
- Publication number
- CN202317098U CN202317098U CN2011204267808U CN201120426780U CN202317098U CN 202317098 U CN202317098 U CN 202317098U CN 2011204267808 U CN2011204267808 U CN 2011204267808U CN 201120426780 U CN201120426780 U CN 201120426780U CN 202317098 U CN202317098 U CN 202317098U
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- mandrel
- steel ball
- chuck body
- central spindle
- centering
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Abstract
The utility model relates to an automatic gapless centering inner hole expanding clamp applied to mechanical equipment such as lathes, grinding machines, milling machines and the like. A steel ball centering inner hole expanding clamp comprises a clamp body, wherein the center of the clamp body is provided with a central spindle; outer circumferential surfaces at the two ends of the central spindle are oblique annular surfaces; one end of the central spindle is provided with a locking propelling device; the locking propelling device is connected with the oblique annular surface of the central spindle; the other end of the central spindle is provided with an expanding device; the expanding device is connected with an oblique annular surface at the other end of the central spindle; one side of the expanding device is provided with a return spring; and the end face of the return spring is connected with the end face of the central spindle. The utility model provides a steel ball centering inner hole expanding clamp, which has a simple structure and a good locking effect, can return automatically, can be used for realizing gapless centering and is convenient to operate; and the technical problems of poor centering effect, inconvenience in processing high-accuracy ultra-long cylindrical parts and non-ideal locking effect existing in the prior art are solved.
Description
Technical field
The utility model relates to a kind of mechanical clamp, relates in particular to a kind of endoporus support rising anchor clamps that are used for automatic zero-clearance centering on the plant equipment such as lathe, grinding machine, milling machine.
Background technology
Present centralizer is used very extensively when processing axis hole class part, requires anchor clamps to have to feel relieved preferably effect and can well clamp simultaneously.Existing centering tensioner technology is with three-jaw chuck clamping workpiece endoporus or smothers workpiece endoporus one end with stifle and realize feeling relieved with the top stifle that holds again; Just not too suitable for overlength tubular shape part; Especially with stifle smother endoporus one end, with the top clamp method that holds the stifle centre bore; Because stifle cylindrical and workpiece endoporus are matched in clearance, just can't reach zero-clearance centering for high-precision overlength tube shape component processing.In the Chinese patent file, have open: " thin-wall part mill internal clamp (CN201872022U) ", thin-wall part mill internal clamp is made up of clamp body and auxiliary pressing plate, bolt and locating bar; Wherein clamp body is installed on the endoporus grinding machine; Locating bar is a single-piece, and locating bar diameter and workpiece processing front aperture are measure-alike, and the time spent is contained on the clamp body, and the time spent does not take out.Utilize locating bar that workpiece is felt relieved, with pressing plate, bolted workpiece, processing endoporus process workpiece can not deform, and satisfies the processing technology requirement.Chinese patent: " automatically centering fixture (CN201224030Y) "; It comprises base plate, on base plate, is fixedly connected with footstock, and footstock has endoporus; On the periphery of footstock, be processed with the ball hole of symmetry; Steel ball places in the ball hole, is set with elastic ring in the outside of footstock, on elastic ring, is provided with opening.Utilize elastic ring to accomplish centering, the centering effect is not very desirable, and locking effect is bad.
Summary of the invention
It is a kind of simple in structure that the utility model provides, and the ability self-return can be realized zero-clearance centering, and locking effect is good, easy to operate steel ball centering endoporus support rising anchor clamps; It is bad to have solved the centering effect that exists in the prior art, inconvenient machining high-precision overlength tube shape component, the technical problem of the unfavorable no network of locking effect.
The above-mentioned technical problem of the utility model solves through following technical proposals: a kind of steel ball centering endoporus support rising anchor clamps; Comprise chuck body, be provided with mandrel, the anchor ring of external peripheral surface for tilting at the two ends of mandrel at the chuck body center; End at mandrel is provided with the locking propulsion plant; The anchor ring that locking propulsion plant and mandrel tilt joins, and is provided with swelling device at the other end of mandrel, and the anchor ring of the mandrel inclination of the described swelling device and the mandrel other end joins; Be provided with back-moving spring in swelling device one side, the end face of back-moving spring and the end face of mandrel join.Locking propulsion plant and mandrel join, and during sectional fixture, promote mandrel and move to the swelling device direction; Mandrel promotes swelling device and moves upward, and clamping work pieces is after machining; Unclamp the locking propulsion plant, spring reset promotes mandrel to the motion of locking propulsion plant direction; Swelling device moves downward, and workpiece is unclamped.The inclined-plane that the two ends of mandrel tilt, it also can be curved surface that the inclined-plane can make the plane, but must to keep be the angle that inclination is arranged, like this when the device with two ends joins, the convenient promotion.Because the effect on the concentric inclined-plane of mandrel, make swelling device self-centering and tensioner workpiece endoporus firmly.
The locking propulsion plant can adopt the square fit system of bolt and inclination, perhaps mode such as hydraulic drive.As preferably; Described locking propulsion plant comprises three clamping screws that are distributed on the chuck body; Clamping screw is vertical with mandrel; Respectively be provided with a steel ball in the end of each clamping screw, an end of steel ball and the end face of clamping screw join, and the anchor ring of the other end of steel ball and the inclination of mandrel joins.When the needs tensioner, turn clamping screw, promote steel ball, steel ball contacts with the mandrel inclined-plane, and mandrel is produced thrust, moves to the swelling device direction.It is simple, easy to process to adopt bolt to carry out locking operation.Adopt steel ball little as the loss of medium transmission power, frictional force is little, implements easily.
As more preferably, outside clamping screw, be provided with bolt sleeve, described bolt sleeve is fixed in the chuck body, in chuck body, is provided with pin-and-hole, and described pin-and-hole is vertical with clamping screw, in pin-and-hole, is provided with the swivel nut steady pin.The swivel nut steady pin plays the stopping effect, makes locking effect better.
As more preferably, be socketed with circlip for shaft at the downside of described clamping screw.Prevent bolt falling, Stability Analysis of Structures, locking effect is good.
Swelling device can adopt modes such as spring member; As preferably; Described swelling device comprises three tightening pieces that are uniformly distributed with on the chuck body, and tightening piece is fixed on the chuck body through screw, below tightening piece, offers groove; In groove, be provided with steel ball, the anchor ring of an end of steel ball and the inclination of mandrel joins.Tightening piece does not stress under natural shape body, and in the time of below mandrel moves to tightening piece, steel ball upwards heads on the tightening piece jacking that makes progress, and realizes tensioner.
As preferably, in described chuck body, be provided with preceding stifle, described before stifle be positioned at the end of mandrel passage of living in, preceding stifle and back-moving spring join, and are provided with stifle afterwards at the section of the other end of mandrel.Through end cap mandrel and spring are fixed, simple in structure, mounting or dismounting are convenient.
Therefore; The steel ball of the utility model centering endoporus support rising anchor clamps possess following advantage: the effect on the concentric inclined-plane through mandrel makes three tightening piece self-centerings and tensioner workpiece endoporus firmly; Simple in structure, easy to operate, can satisfy the zero-clearance centering of high-precision overlength tube shape component processing; Adopt steel ball as transition element, frictional force is little, the convenient promotion and return.
Description of drawings
Fig. 1 is the sketch map of steel ball centering endoporus support the rising anchor clamps of the utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
The specific embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically the technical scheme of utility model.
Embodiment:
As illustrated in fig. 1 and 2, steel ball centering endoporus support rising anchor clamps comprise chuck body 1, and chuck body 1 is one-body molded by discoidal end face and columned cylindrical shell 15.Center in chuck body 1 offers through hole, stifle 2 and back stifle 3 before the two ends of through hole have been threaded respectively, and back stifle 3 is positioned at end face one side of chuck body 1.Between preceding stifle 2 and back stifle 3, mandrel 4 is installed, the external peripheral surface at the two ends of mandrel 4 is processed as the anchor ring 5 of inclination.On chuck body 1, offer through hole, three bolt sleeves 6 are installed in through hole, in chuck body 1, offer the pin shaft hole 7 vertical, swivel nut steady pin 8 is installed in pin shaft hole 7, swivel nut steady pin 8 puller bolts cover 6 with bolt sleeve 6.The center line of bolt sleeve 6 is positioned at mandrel 4 in the radial direction; Be connected with locking at bolt sleeve 6 internal threads and promote bolt 9; Below locking promotion bolt 9, be socketed with circlip for shaft 10, the diameter of circlip for shaft 10 prevents bolt falling greater than the external diameter of swivel nut.Locking promote bolt 9 below through hole in a steel ball 11 is arranged, steel ball 11 joins with the anchor ring 5 of the inclination of mandrel 4, locking promotes bolt 9 and pushes steel ball 11 to mandrel 4, because what join is the end face that annular tilts, gives 4 one thrusts to the right of mandrel.Left end at mandrel 4 has swelling device, and swelling device comprises that locking promotes three corresponding tightening pieces 12 of bolt.Tightening piece 12 is fixed on the chuck body 1 through screw 13, below tightening piece 12, offers groove, in groove, is provided with steel ball 11, and the anchor ring 5 of an end of steel ball 11 and the inclination of mandrel joins.The right side of mandrel and back-moving spring 14 join, and the other end apical grafting of back-moving spring 14 is on preceding stifle 2.
The utility model can be connected with corresponding connected mode with arbitrary equipment in lathe, inside and outside round grinding machine, milling machine, machining center or the rotary type automatic welder(welding machine); The endoporus of tubular jatharapanvartanasana workpiece is inserted in the cylindrical of the cylindrical shell of anchor clamps, and workpiece end face and anchor clamps end face develop.The locking that turns clockwise promotes bolt, and locking promotion bolt end face holds steel ball and contacts with the mandrel inclined-plane, and consequent axial force moves right mandrel.When mandrel moved right, with the jacking of right-hand member steel ball, thereby the tightening piece that will contact with the right-hand member steel ball opened to hold the workpiece bore area, reaches self-centering tensioner part endoporus, reached the effect of zero-clearance centering.Three bolts of screwing that repeat in turn to screw are because the effect on the concentric inclined-plane of mandrel makes three slit bamboo or chopped wood tightening piece self-centerings and tensioner workpiece endoporus firmly.In the time of need unclamping workpiece, unscrew the bolt of screwing, and under the effect of right-hand member spring, the steel ball that withstands tightening piece loosens automatically, the tightening piece outside diameter returns to the preceding state of tensioner.
Claims (6)
1. a steel ball centering endoporus supports the anchor clamps that rise; Comprise chuck body, it is characterized in that: be provided with mandrel at the chuck body center, the anchor ring of external peripheral surface for tilting at the two ends of mandrel; End at mandrel is provided with the locking propulsion plant; The anchor ring that locking propulsion plant and mandrel tilt joins, and is provided with swelling device at the other end of mandrel, and the anchor ring of the mandrel inclination of the described swelling device and the mandrel other end joins; Be provided with back-moving spring in swelling device one side, the end face of back-moving spring and the end face of mandrel join.
2. steel ball centering endoporus support rising anchor clamps according to claim 1; It is characterized in that: described locking propulsion plant comprises three clamping screws that are distributed on the chuck body; Clamping screw is vertical with mandrel; Respectively be provided with a steel ball in the end of each clamping screw, an end of steel ball and the end face of clamping screw join, and the anchor ring of the other end of steel ball and the inclination of mandrel joins.
3. steel ball centering endoporus support rising anchor clamps according to claim 2; It is characterized in that: outside clamping screw, be provided with bolt sleeve, described bolt sleeve is fixed in the chuck body, in chuck body, is provided with pin-and-hole; Described pin-and-hole is vertical with clamping screw, in pin-and-hole, is provided with the swivel nut steady pin.
4. steel ball centering endoporus support rising anchor clamps according to claim 2, it is characterized in that: the downside at described clamping screw is socketed with circlip for shaft.
5. according to claim 1 or 2 or 3 or 4 described steel ball centering endoporus support rising anchor clamps; It is characterized in that: described swelling device comprises three tightening pieces that are uniformly distributed with on the chuck body; Tightening piece is fixed on the chuck body through screw; Below tightening piece, offer groove, in groove, be provided with steel ball, the anchor ring of an end of steel ball and the inclination of mandrel joins.
6. according to claim 1 or 2 or 3 or 4 described steel ball centering endoporus support rising anchor clamps; It is characterized in that: in described chuck body, be provided with preceding stifle; Stifle is positioned at the end of mandrel passage of living in before described; Before stifle and back-moving spring join, be provided with stifle afterwards at the section of the other end of mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204267808U CN202317098U (en) | 2011-11-02 | 2011-11-02 | Steel ball centering inner hole expanding clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204267808U CN202317098U (en) | 2011-11-02 | 2011-11-02 | Steel ball centering inner hole expanding clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202317098U true CN202317098U (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204267808U Expired - Fee Related CN202317098U (en) | 2011-11-02 | 2011-11-02 | Steel ball centering inner hole expanding clamp |
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| CN (1) | CN202317098U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707080A (en) * | 2013-12-10 | 2014-04-09 | 江苏欧盛液压科技有限公司 | Precision centralized positioning tool |
| CN104014833A (en) * | 2014-06-13 | 2014-09-03 | 沈阳飞机工业（集团）有限公司 | Thin-wall round sleeve centered expanded clamp |
| CN104801785A (en) * | 2015-03-30 | 2015-07-29 | 江苏太平洋齿轮传动有限公司 | Radial positioning type external gear ring gear shaping clamp |
| CN105382287A (en) * | 2015-11-16 | 2016-03-09 | 苏州市职业大学 | Reducing hole interior tensioning device |
| CN105716863A (en) * | 2016-04-22 | 2016-06-29 | 河南科技大学 | Internal spline centering and clamping device used for detection of gleason spiral bevel gear |
| CN105729151A (en) * | 2016-03-30 | 2016-07-06 | 句容五星机械制造有限公司 | Workpiece inner hole positioning tool |
| CN107363596A (en) * | 2017-09-07 | 2017-11-21 | 广西玉柴机器股份有限公司 | A kind of manual secondary support means |
| CN108098376A (en) * | 2017-12-12 | 2018-06-01 | 杭州九龙机械制造有限公司 | A kind of bell housing centralized positioning pile crown |
| CN108176867A (en) * | 2017-12-21 | 2018-06-19 | 北京遥感设备研究所 | A kind of thin-walled revolution workpiece structural member endoporus rigidity reinforced device |
| CN109226800A (en) * | 2018-08-27 | 2019-01-18 | 北京新立机械有限责任公司 | A kind of self-centering Auxiliary support clamping that can be adjusted |
| CN110549403A (en) * | 2019-08-26 | 2019-12-10 | 太仓市伦友精工机械有限公司 | Internal expansion sleeve structure for adhesive tape pipe cutting machine |
-
2011
- 2011-11-02 CN CN2011204267808U patent/CN202317098U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707080A (en) * | 2013-12-10 | 2014-04-09 | 江苏欧盛液压科技有限公司 | Precision centralized positioning tool |
| CN103707080B (en) * | 2013-12-10 | 2017-03-15 | 江苏欧盛液压科技有限公司 | High Precision Central positioning tool |
| CN104014833A (en) * | 2014-06-13 | 2014-09-03 | 沈阳飞机工业（集团）有限公司 | Thin-wall round sleeve centered expanded clamp |
| CN104014833B (en) * | 2014-06-13 | 2016-09-14 | 沈阳飞机工业（集团）有限公司 | Thin-walled round bush centering tensioning clamper |
| CN104801785A (en) * | 2015-03-30 | 2015-07-29 | 江苏太平洋齿轮传动有限公司 | Radial positioning type external gear ring gear shaping clamp |
| CN105382287A (en) * | 2015-11-16 | 2016-03-09 | 苏州市职业大学 | Reducing hole interior tensioning device |
| CN105729151A (en) * | 2016-03-30 | 2016-07-06 | 句容五星机械制造有限公司 | Workpiece inner hole positioning tool |
| CN105716863A (en) * | 2016-04-22 | 2016-06-29 | 河南科技大学 | Internal spline centering and clamping device used for detection of gleason spiral bevel gear |
| CN107363596A (en) * | 2017-09-07 | 2017-11-21 | 广西玉柴机器股份有限公司 | A kind of manual secondary support means |
| CN108098376A (en) * | 2017-12-12 | 2018-06-01 | 杭州九龙机械制造有限公司 | A kind of bell housing centralized positioning pile crown |
| CN108176867A (en) * | 2017-12-21 | 2018-06-19 | 北京遥感设备研究所 | A kind of thin-walled revolution workpiece structural member endoporus rigidity reinforced device |
| CN108176867B (en) * | 2017-12-21 | 2019-08-16 | 北京遥感设备研究所 | A kind of thin-walled revolution workpiece structural member inner hole rigidity reinforced device |
| CN109226800A (en) * | 2018-08-27 | 2019-01-18 | 北京新立机械有限责任公司 | A kind of self-centering Auxiliary support clamping that can be adjusted |
| CN109226800B (en) * | 2018-08-27 | 2019-10-25 | 北京新立机械有限责任公司 | A kind of self-centering Auxiliary support clamping that can be adjusted |
| CN110549403A (en) * | 2019-08-26 | 2019-12-10 | 太仓市伦友精工机械有限公司 | Internal expansion sleeve structure for adhesive tape pipe cutting machine |
| CN110549403B (en) * | 2019-08-26 | 2021-04-23 | 太仓市伦友精工机械有限公司 | Internal expansion sleeve structure for adhesive tape pipe cutting machine |
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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: 20120711 Termination date: 20151102 |
|
| EXPY | Termination of patent right or utility model |