CN109530738A - A kind of claw adjustable positioning device for elastic chuck - Google Patents
A kind of claw adjustable positioning device for elastic chuck Download PDFInfo
- Publication number
- CN109530738A CN109530738A CN201811334979.0A CN201811334979A CN109530738A CN 109530738 A CN109530738 A CN 109530738A CN 201811334979 A CN201811334979 A CN 201811334979A CN 109530738 A CN109530738 A CN 109530738A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- elastic chuck
- screw thread
- positioning device
- adapter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/102—Jaws, accessories or adjustment means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The invention belongs to field of machining, disclose a kind of claw adjustable positioning device for elastic chuck, it include: locating rod, adapter, sleeve, sliding pin, limit swivel nut, limit stop ring, adjusting screw rod, locating rod and adapter, adapter and sleeve, sleeve is connected through a screw thread with limit swivel nut, limit stop ring is connect by screw thread with limit swivel nut, adjusting screw rod passes through screw thread and sleeve connection, three sliding pins are evenly distributed on sleeve, rotary stopper retaining ring is axially movable, fix bar arranges are in the position of elastic chuck front-loading location hole, rotate adjusting screw rod axially movable, sliding pin can be pushed radially movable, the device is set to tighten together with elastic chuck, it is accurate to realize, reliable positioning action.Structure of the invention is compact, and positioning accuracy is high, adjust it is easy to use, it is adaptable, can wide popularization and application on the elastic chuck for the various specifications that production scene generally uses.
Description
Technical field:
The present invention relates to machinings to receive, more particularly to a kind of adjustable positioning dress of claw for elastic chuck
It sets.
Background technique:
In mechanical processing process, especially in turnery processing, often to use to elastic chuck and clamping is carried out to part
Positioning.Usually in certain situations it is desirable to which the depth for being packed into elastic chuck to part is accurately positioned, such as: part is in length
Spending direction requires tolerance tight, and consistency is high；In order to improve processing efficiency, it needs to carry out once to Continuous maching after knife etc..Especially
For small part, the accurate positionin of end face for stabilised quality, improve efficiency and have very important significance.
However, typically now using being positioned from the locating rod that lathe rear-end of spindle protrudes into, due to locating rod arm length,
It is difficult to realize be accurately positioned, and when the shaft rotates, since inertia force acts on, the buckling deformation of locating rod can be more serious, from
And substantially reduce the accuracy and reliability of positioning.
Summary of the invention
For the present invention for deficiency present in existing clamping positioning method, providing a kind of claw for elastic chuck can
Regulating positioning device.
The technical solution adopted by the present invention is that a kind of claw adjustable positioning device for elastic chuck, feature exists
In, comprising: locating rod 1, sliding pin 2, limit swivel nut 3, adjusting screw rod 4, limit stop ring 5, sleeve 6 and adapter 7；It is described fixed
The external screw thread a10 of position bar 1 is matched with the threaded hole a23 of the adapter 7, the external screw thread b24 of adapter 7 and the sleeve 6
Threaded hole b18 match, the external screw thread c21 of sleeve 6 with it is described limit swivel nut 3 threaded hole c13 match, the limiting block
Circle 5 is matched with the external screw thread d14 of limit swivel nut 3, can adjust its axis relative to limit swivel nut 3 by rotary stopper retaining ring 5
Line position, the external screw thread e16 of the adjusting screw rod 4 are matched with the threaded hole d20 of sleeve 6, the outside cylinder of the sliding pin 2
Face a11 is matched with the hole 19 on sleeve 6, by rotation adjusting screw rod 4, it can be made to generate axial movement relative to sleeve 6, into
And sliding pin 2 is pushed to generate radial motion along the direction in the hole of sleeve 6 19.
1 one end of locating rod is external cylindrical surface b8, can according to select the outside cylinder that matches using the model of elastic chuck
The diameter of face b8.
There is positioning end face 9 in the root external screw thread a10 of locating rod 1.
2 one end of sliding pin is circular conical surface a12, and cone angle is 45 degree.
4 left end face of adjusting screw rod is circular conical surface b15, and cone angle is 45 degree, and right end face is provided with six side's counterbores 17.
Limit stop ring 5 is annulus shape, and inner hole is threaded hole, and screw thread has self-locking performance.
Unthreaded hole 19 at three are distributed along the circumference on 6 left side external cylindrical surface of sleeve.
There is symmetrical plane 22 on 7 large cylindrical cylinder of adapter.
The present invention can be fastened directly to by using a kind of claw adjustable positioning device for elastic chuck, the device
It being positioned in the tail portion macropore of elastic chuck, dramatically increases the rigidity of positioning device, keep positioning stablity reliable, precision is high, and
Position length adjusting is simple and convenient, and consistency is good, to very well satisfy the work posts such as turning when using elastic chuck to zero
The current demand that part end face is accurately positioned, compact-sized, positioning accuracy is high, and adjustment is easy to use, adaptable.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the claw adjustable positioning device for elastic chuck of the present invention, wherein 1: fixed
Position bar, 2: sliding pin, 3: limit swivel nut, 4: adjusting screw rod, 5: limit stop ring；6: sleeve；7: adapter；
Fig. 2 is the cross-sectional view of Fig. 1, wherein 1: locating rod, 2: sliding pin, and 3: limit swivel nut, 4: adjusting screw rod, 5: limit
Position retaining ring；6: sleeve；7: adapter；
Fig. 3 is positional lever structure schematic diagram, wherein 1: locating rod, 8: external cylindrical surface b, 9: positioning end face, and 10: external screw thread
a；
Fig. 4 is sliding pin structural schematic diagram, wherein 2: sliding pin, 11: external cylindrical surface a, 12: circular conical surface a；
Fig. 5 is limit screw bushing structure schematic diagram, wherein 3: limit swivel nut, 13: threaded hole c, 14: external screw thread d；
Fig. 6 is adjusting screw rod structural schematic diagram, wherein 4: adjusting screw rod, 15: circular conical surface b, 16: external screw thread e, 17: six sides
Counterbore；
Fig. 7 is tube-in-tube structure schematic diagram, wherein 6: sleeve, 18: threaded hole b, 19: unthreaded hole, and 20: threaded hole d, 21: outer spiral shell
Line c；
Fig. 8 is adapter structure schematic diagram, wherein 7: adapter, 22: plane, and 23: threaded hole a, 24: external screw thread b.
Specific embodiment
For the better implementation present invention, elaborates with reference to the accompanying drawings of the specification to the present invention, please refer to explanation
Book attached drawing 1~8.
A kind of structural schematic diagram of the claw adjustable positioning device for elastic chuck, wherein 1: locating rod, 2: sliding
Pin, 3: limit swivel nut, 4: adjusting screw rod, 5: limit stop ring；6: sleeve；7: adapter；
Described 1 one end of locating rod is external cylindrical surface b8, and the other end is external screw thread a10, and there is positioning end face in the root external screw thread a10
9, there is symmetrical plane 22 on the 7 large cylindrical cylinder of adapter, right side outer surface is external screw thread b24, and inner hole is screw thread
Hole a23, the external screw thread a10 are matched with the threaded hole a23, are evenly distributed three on the 6 left side external cylindrical surface of sleeve
Locate unthreaded hole 19, right side external cylindrical surface is external screw thread c21, and left side bore section is threaded hole b18, and right side inner hole is threaded hole d20,
The threaded hole b18 is matched with the external screw thread b24, and described 2 one end of sliding pin is external cylindrical surface a11, and the other end is circle
Conical surface a12, the external cylindrical surface a11 is matched with the unthreaded hole 19, and can radially be slided, the limit swivel nut 3, outer surface
For external screw thread d14, inner hole left side is partial threads hole c13, and the external screw thread c21 is matched with the threaded hole c13, the limit
The threaded hole of position retaining ring 5 is matched with the external screw thread c14, and rotary stopper retaining ring 5 can make it that axis occur relative to limit swivel nut 3
To movement, position of the whole device in elastic chuck is adjusted, 4 left end face of adjusting screw rod is circular conical surface b15, right-hand end
Face is provided with six side's counterbores 17, and left outer surface is external screw thread e16, and the external screw thread e16 is matched with the threaded hole d20, revolves
Turning adjusting screw rod can be such that it is axially moved relative to sleeve 6, and then sliding pin 2 is pushed to transport along the axial radial direction that occurs in hole 19
It is dynamic.
During device designs and produces, according to the model, size and specification etc. of selected elastic chuck, positioning is determined
The structure size of bar 1 and sleeve 6 determines sliding pin 2 according to the structure size of locating rod 1 and sleeve 6, limit swivel nut 3, adjusts
Screw rod 4, the structure size of limit stop ring 5 and adapter 7.
In device use process, firstly, according to the size in selected elastic chuck front-loading hole, selection or self-control
Suitable locating rod 1, and connect on adapter 2.Then, the clamping depth according to part in elastic chuck, rotation limit
Position retaining ring 5, is adjusted to suitable position.Then, whole device is put into elastic chuck, is limited by limit stop ring 5
Position of the whole device in elastic chuck rotates adjusting screw rod 4 with die nut, under threaded connection, realizes adjusting screw rod
Axially translated relative to sleeve 6, during translation, adjusting screw rod 4 and pin 2 push three in a manner of cone match
A pin 2 uniformly distributed three along sleeve 2 at unthreaded hole move radially, the device and elastic chuck are fastened in a manner of three-jaw support
Together.Finally, elastic chuck is packed on machine tool chief axis together with whole device, start part processing.
Embodiment one
There is the diameter at one to be by taking flexibility bar as an example, on partIt is a length ofExternal cylindrical surface need vehicle
It cuts, and coherence request is within 0.02.Since part is small, precision is high, and every batch of processing quantity is more, so Set and Positioning is wanted
Accuracy is high, good reliability, and repetitive positioning accuracy is high.However, the part is on small trolley T70 when processing, due to locating rod
Overhang length, can not achieve accurate positioning, is positioned subsequently through self-control expanding type locating rod, but due to contacting stretching for line,
Easy play in processing, leads to position inaccurate, and quality risk is big.The part is transferred to semi-automatic lathe S225 processing, due to this
Lathe locating rod is penetrated from rear-end of spindle to be positioned, and cantilevered length is about 400mm, is influenced by itself precision and gravity,
Make locating rod position portion can not accurately enter collet bore in, even if take a chance into hole wall interfere, and with main shaft turn
When dynamic, vibration is more serious, causes positioning extremely unreliable, and be likely to cause the bending of locating rod position portion, fracture.
Using the present apparatus, by way of three-jaw stretching, the tail portion macropore of elastic chuck can be directly fastened the device to
It is inside positioned, since the overhanging of locating rod is substantially shortened, dramatically increases the rigidity of positioning device, keep positioning stablity reliable, essence
Degree is high, and position length according to part clamping length easy adjustment, can be obviously improved the operability of the device and using effect
Rate.
(1) according to selected elastic chuck specification, then suitable locating rod is selected；
(2) according to the clamping depth of required processing part, position of the adjustment limit stop ring on limit swivel nut；
(3) whole device is put into elastic chuck, chooses to install adjusting screw rod, sliding pin is pushed to move radially, it will be entire
Device is fastened in elastic chuck by way of three-jaw stretching；
(4) elastic chuck is mounted on machine tool chief axis together with the device；
(5) it is packed into part, so that section after part is close to locating rod front end face, Clamp blocks start to process.
Claims (8)
1. a kind of claw adjustable positioning device for elastic chuck characterized by comprising locating rod (1), sliding pin
(2), swivel nut (3), adjusting screw rod (4), limit stop ring (5), sleeve (6) and adapter (7) are limited；Outside the locating rod (1)
Screw thread a (10) is matched with the threaded hole a (23) of the adapter (7), the external screw thread b (24) and the sleeve of adapter (7)
(6) threaded hole b (18) is matched, and the threaded hole c (13) of the external screw thread c (21) of sleeve (6) and limit swivel nut (3) matches
It closes, the limit stop ring (5) matches with the external screw thread d (14) of limit swivel nut (3), adjustable by rotary stopper retaining ring (5)
Its axial location relative to limit swivel nut (3), the external screw thread e (16) of the adjusting screw rod (4) and the threaded hole d of sleeve (6)
(20) it matches, the external cylindrical surface a (11) of the sliding pin (2) is matched with the hole (19) on sleeve (6), is adjusted by rotation
It saves screw rod (4), it can be made to generate axial movement relative to sleeve (6), and then push sliding pin (2) along the hole of sleeve (6)
(19) direction generates radial motion.
2. a kind of claw adjustable positioning device for elastic chuck as described in claim 1, which is characterized in that locating rod
(1) one end be external cylindrical surface b (8), can according to using elastic chuck model selection match external cylindrical surface b (8) it is straight
Diameter.
3. a kind of claw adjustable positioning device for elastic chuck as described in claim 1, which is characterized in that locating rod
(1) external screw thread a (10) root has positioning end face (9).
4. a kind of claw adjustable positioning device for elastic chuck as described in claim 1, which is characterized in that sliding pin
Following closely (2) one end is circular conical surface a (12), and cone angle is 45 degree.
5. a kind of claw adjustable positioning device for elastic chuck as described in claim 1, which is characterized in that adjust spiral shell
Bar (4) left end face is circular conical surface b (15), and cone angle is 45 degree, and right end face is provided with six side's counterbores (17).
6. a kind of claw adjustable positioning device for elastic chuck as described in claim 1, which is characterized in that limiting block
Enclosing (5) is annulus shape, and inner hole is threaded hole, and screw thread has self-locking performance.
7. a kind of claw adjustable positioning device for elastic chuck as claimed in any one of claims 1 to 6, feature
It is, is distributed along the circumference with unthreaded hole at three (19) on external cylindrical surface on the left of sleeve (6).
8. a kind of claw adjustable positioning device for elastic chuck as claimed in claim 7, which is characterized in that adapter
(7) have on large cylindrical cylinder symmetrical plane (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811334979.0A CN109530738B (en) | 2018-11-09 | 2018-11-09 | Claw type adjustable positioning device for elastic chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811334979.0A CN109530738B (en) | 2018-11-09 | 2018-11-09 | Claw type adjustable positioning device for elastic chuck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109530738A true CN109530738A (en) | 2019-03-29 |
| CN109530738B CN109530738B (en) | 2020-01-14 |
Family
ID=65846742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811334979.0A Active CN109530738B (en) | 2018-11-09 | 2018-11-09 | Claw type adjustable positioning device for elastic chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109530738B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110744073A (en) * | 2019-10-21 | 2020-02-04 | 河北华丰能源科技发展有限公司 | Connecting fastener and lathe |
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|---|---|---|---|---|
| US4274774A (en) * | 1978-05-18 | 1981-06-23 | Toyota Jidosha Kogyo Kabushiki Kaisha | Tool-fitting device |
| CN202878209U (en) * | 2012-09-29 | 2013-04-17 | 玉柴联合动力股份有限公司 | Reversely-unscrewing-type chuck |
| CN203281886U (en) * | 2013-05-21 | 2013-11-13 | 宁波海良精机有限公司 | Shaft rear-feeding positioning device |
| CN103447566A (en) * | 2013-08-30 | 2013-12-18 | 贵州航晟机械制造有限责任公司 | Positioner |
| CN104942324A (en) * | 2014-03-28 | 2015-09-30 | 盐城百圣机械有限公司 | Multifunctional spring collet for instrument lathes |
| CN204843553U (en) * | 2015-07-13 | 2015-12-09 | 自贡市川力实业有限公司 | Boring collet chuck of minor axis |
| CN204868272U (en) * | 2015-06-19 | 2015-12-16 | 航天精工股份有限公司 | CNC numerical control lathe axial positioning device |
| CN204893016U (en) * | 2015-08-31 | 2015-12-23 | 台州市东部数控设备有限公司 | Numerical control lathe's elasticity anchor clamps |
| CN105215392A (en) * | 2015-11-17 | 2016-01-06 | 上海衡拓液压控制技术有限公司 | The adjustable interior locating device of smooth turning lathe collet |
| CN205324771U (en) * | 2015-11-17 | 2016-06-22 | 上海衡拓液压控制技术有限公司 | Interior positioner with adjustable high accuracy lathe collet chuck |
| CN205733052U (en) * | 2015-12-11 | 2016-11-30 | 贵州红林机械有限公司 | A kind of axial direction positioning device of numerical control lathe main shaft jump ring |
-
2018
- 2018-11-09 CN CN201811334979.0A patent/CN109530738B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4274774A (en) * | 1978-05-18 | 1981-06-23 | Toyota Jidosha Kogyo Kabushiki Kaisha | Tool-fitting device |
| CN202878209U (en) * | 2012-09-29 | 2013-04-17 | 玉柴联合动力股份有限公司 | Reversely-unscrewing-type chuck |
| CN203281886U (en) * | 2013-05-21 | 2013-11-13 | 宁波海良精机有限公司 | Shaft rear-feeding positioning device |
| CN103447566A (en) * | 2013-08-30 | 2013-12-18 | 贵州航晟机械制造有限责任公司 | Positioner |
| CN104942324A (en) * | 2014-03-28 | 2015-09-30 | 盐城百圣机械有限公司 | Multifunctional spring collet for instrument lathes |
| CN204868272U (en) * | 2015-06-19 | 2015-12-16 | 航天精工股份有限公司 | CNC numerical control lathe axial positioning device |
| CN204843553U (en) * | 2015-07-13 | 2015-12-09 | 自贡市川力实业有限公司 | Boring collet chuck of minor axis |
| CN204893016U (en) * | 2015-08-31 | 2015-12-23 | 台州市东部数控设备有限公司 | Numerical control lathe's elasticity anchor clamps |
| CN105215392A (en) * | 2015-11-17 | 2016-01-06 | 上海衡拓液压控制技术有限公司 | The adjustable interior locating device of smooth turning lathe collet |
| CN205324771U (en) * | 2015-11-17 | 2016-06-22 | 上海衡拓液压控制技术有限公司 | Interior positioner with adjustable high accuracy lathe collet chuck |
| CN205733052U (en) * | 2015-12-11 | 2016-11-30 | 贵州红林机械有限公司 | A kind of axial direction positioning device of numerical control lathe main shaft jump ring |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110744073A (en) * | 2019-10-21 | 2020-02-04 | 河北华丰能源科技发展有限公司 | Connecting fastener and lathe |
| CN110744073B (en) * | 2019-10-21 | 2021-04-16 | 河北华丰能源科技发展有限公司 | Connecting fastener and lathe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109530738B (en) | 2020-01-14 |
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