CN203459698U - High-accuracy centering chuck - Google Patents
High-accuracy centering chuck Download PDFInfo
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- CN203459698U CN203459698U CN201320455760.2U CN201320455760U CN203459698U CN 203459698 U CN203459698 U CN 203459698U CN 201320455760 U CN201320455760 U CN 201320455760U CN 203459698 U CN203459698 U CN 203459698U
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- plane
- wedging
- tube reducing
- sleeve
- resilient sleeve
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Abstract
The utility model provides a chuck device capable of improving the clamping accuracy and has the advantages of being wide in application range, convenient to replace and the like. The high-accuracy centering chuck comprises a chuck base and an elstic sleeve. The chuck base is provided with an assembling hole. One end of the elstic sleeve is divided into a plurality of clamping pieces, and the outer sides of the clamping pieces are provided with first wedging oblique planes. Particularly, a hole shoulder is arranged inside the assembling hole. The elstic sleeve is located in the assembling hole and penetrates the hole shoulder. An expansion lining and an expansion sleeve are further arranged between the assembling hole and the elstic sleeve and sequentially arranged between the hole shoulder and the first wedging oblique planes. A second wedging oblique plane is arranged at one end of the expansion sleeve, and a third wedging oblique plane is arranged at the other end of the expansion sleeve. A fourth wedging oblique plane is arranged on the expansion lining. The first wedging oblique planes and the second wedging oblique plane work in a matched mode. The third wedging oblique plane and the fourth wedging oblique plane work in a matched mode. The high-accuracy centering chuck has the advantages of being simple in structure, high in centering accuracy, firm in clamping and the like.
Description
Technical field
The utility model relates to the chuck that in a kind of lathe, holding workpiece is used.
Background technology
Common centering and clamping apparatus has at present: scroll chuck, four-jaw chuck, six dog chucks and resilient sleeve chuck etc.Scroll chuck, six dog chucks and resilient sleeve chuck centering precision are all lower.Although it is very high that four-jaw chuck centering precision can reach, adjustment is got up loaded down with trivial details, the waste plenty of time.
As shown in figure 15, resilient sleeve cartridge device consists of base of the carrier head 7 and resilient sleeve 8.One end of resilient sleeve 8 is divided into some clamping lobes 81, in the outside that clamps lobe 81, has been set as wedging inclined-plane 82; The other end of resilient sleeve 8 is cylinder, is useful on the internal thread of connection for transmission bar at the end of cylinder band.On base of the carrier head 7, be formed with for holding the pilot hole 71 of resilient sleeve 8, on the aperture of pilot hole 71, be also shaped with other wedging inclined-plane 72.During use, the cylindric workpiece that external diameter is slightly smaller than to resilient sleeve 8 internal diameters is put in resilient sleeve 8, then drive link pulls resilient sleeve 8 to the left-hand of position shown in Fig. 1, because both wedging inclined-planes of resilient sleeve 8 and pilot hole 71 interact to force, clamp lobe 81 and draw in to resilient sleeve 8 centers, so realize, the centering of cylindric workpiece is clamped.
But, between the external diameter of resilient sleeve and the internal diameter of pilot hole, and must there is certain gap between the internal diameter of resilient sleeve and the external diameter of workpiece, and clamping lobe is that single-point clamps for workpiece, so when being subject to cutting external force, the non-clamping lobe force side of workpiece is easy to utilize the gap between resilient sleeve internal diameter and workpiece external diameter swing and cause machining accuracy to reduce.For reducing the amplitude of fluctuation that adds workpiece in man-hour, require the gap between the internal diameter of resilient sleeve and the external diameter of workpiece as far as possible little, the current way adopting is: the workpiece of clamping different size is just changed corresponding resilient sleeve.But the disassemble and assemble work of resilient sleeve need to expend the more time, and production efficiency is had to larger impact.
Summary of the invention
The purpose of this utility model is to provide a kind of cartridge device that improves clamp precision, and such device has wide adaptability, substitutes the features such as convenient.
Adopt following technical scheme:
High-precision accurate centring chuck, comprises base of the carrier head and resilient sleeve; On base of the carrier head, be provided with pilot hole; One end of resilient sleeve is divided into some clamping lobes, in the outside that clamps lobe, has been set as the first wedging inclined-plane; Especially, in the inside of pilot hole, be provided with hole shoulder; Resilient sleeve is among pilot hole and penetrates described hole shoulder; Between pilot hole and resilient sleeve, be also provided with tensioner lining and expansion sleeve; Tensioner lining and expansion sleeve are successively set between hole shoulder and the first wedging inclined-plane; One end of expansion sleeve is provided with the second wedging inclined-plane, and the other end of expansion sleeve is provided with the 3rd wedging inclined-plane; Tensioner lining is provided with the 4th wedging inclined-plane; Described the first wedging inclined-plane and the second wedging inclined-plane cooperating; Described the 3rd wedging inclined-plane and the 4th wedging inclined-plane cooperating.
Operation principle of the present utility model is as follows: can be provided in the inside of the non-clamping lobe place of resilient sleeve end the internal thread of connection for transmission bar.When resilient sleeve being drawn at drive link to the pilot hole of base of the carrier head, also can drive expansion sleeve toward hole shoulder direction motion simultaneously, now the first wedging inclined-plane will draw clamping lobe in the second wedging inclined-plane cooperating, meanwhile, the 3rd wedging inclined-plane also will draw clamping lobe in the 4th wedging inclined-plane cooperating.So the tightening force of drive link will change into clamping two gathering power of lobe, under the effect of two such gathering power, clamping lobe is that two point clamps for workpiece, workpiece is no longer subject to the impact in gap between resilient sleeve internal diameter and workpiece external diameter, when being subject to cutting external force the swing of workpiece also can be down to minimum, the therefore effective machining accuracy of lifting workpieces.
It should be noted that as the technology being equal to, described tensioner lining can be made into integration on the shoulder of hole.
Because resilient sleeve and drive link link together, when the external diameter of workpiece to be processed and the internal diameter of resilient sleeve differ larger, may exceed the elastic deformation scope that clamps lobe.Therefore the difference between the internal diameter of resilient sleeve and the external diameter of workpiece should guarantee within the specific limits.Yet the dismounting between resilient sleeve and drive link conventionally can't be very convenient.
Therefore can be by the following technical solutions: tube reducing cover is also housed in resilient sleeve; Described tube reducing cover, for cylindric, is shaped with some grooves that weaken longitudinally in one end of tube reducing cover; The other end at tube reducing cover is also shaped with some grooves that weaken longitudinally; At tube reducing, put and be also provided with spacing convex shoulder.Owing to weakening groove, can make tube reducing cover easily deformable, so tube reducing is enclosed within the effect of clamping lobe of resilient sleeve and can carry out the clamping of gathering formula to workpiece.Tube reducing cover is inserted in resilient sleeve, and between the external diameter of tube reducing cover and the internal diameter of resilient sleeve, can be made into is matched in clearance, and the internal diameter of tube reducing cover can be made different sizes according to the external diameter of workpiece to be processed.In the time need to processing the workpiece of different size, only need to change corresponding tube reducing cover by artificial plug.Because tube reducing overlaps the mask work that is far simpler than resilient sleeve and drive link with the mask work of resilient sleeve, therefore such design can effectively be shortened non-cutting time, enhances productivity.The effect of spacing convex shoulder is the relative position limiting between tube reducing cover and resilient sleeve.
As preferred version: the groove that weakens at tube reducing cover two ends is preferably in being upwards uniformly distributed in week of tube reducing cover.
When the wall thickness of tube reducing cover is thicker, even if being shaped with, tube reducing cover two ends weaken groove, the rigidity of tube reducing cover now may be still stronger, so that can consume larger gathering clamping force.For avoiding this kind of situation, the two ends of described tube reducing cover have been preferably formed as thinner wall section; The groove that weakens starting from one end extends to the thinner wall section other one end.Even if can guarantee that like this wall thickness of tube reducing cover is thicker, tube reducing cover still has good deformability.
The utlity model has that structure is relatively simple, centering precision is high, clamp the advantages such as firm.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of embodiment 1;
Fig. 2 is the cross-sectional schematic of base of the carrier head in embodiment 1;
Fig. 3 is the expansion schematic diagram of embodiment 1 Elastic sleeve;
Fig. 4 is the A-A cutaway view of Fig. 3;
Fig. 5 is the front view of tensioner lining in embodiment 1;
Fig. 6 is the B-B cutaway view of Fig. 5;
Fig. 7 is the front view of expansion sleeve in embodiment 1;
Fig. 8 is the C-C cutaway view of Fig. 7;
Fig. 9 is the cross-sectional schematic of embodiment 2;
Figure 10 is the expansion schematic diagram of tube reducing cover in embodiment 2;
Figure 11 is the D-D cutaway view of Figure 10;
Figure 12 is the cross-sectional schematic of embodiment 3;
Figure 13 is the expansion schematic diagram of tube reducing cover in embodiment 3;
Figure 14 is the E-E cutaway view of Figure 13;
Figure 15 is the cross-sectional schematic of existing resilient sleeve cartridge device.
Description of reference numerals: 1-base of the carrier head; 2-resilient sleeve; 3-tensioner lining; 4-expansion sleeve; 5-tube reducing cover; 6-tube reducing cover;
11-pilot hole; 12-hole shoulder; 21-clamps lobe; 22-the first wedging inclined-plane; 31-the 4th wedging inclined-plane; 41-the second wedging inclined-plane; 42-the 3rd wedging inclined-plane; 51-tube reducing groove; 61-tube reducing groove; 62-thinner wall section.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model content is described further.
Embodiment 1
As shown in Figure 1, the high-precision accurate centring chuck of the present embodiment comprises: base of the carrier head 1, resilient sleeve 2, tensioner lining 3 and expansion sleeve 4.
Wherein:
As shown in Figure 2, on base of the carrier head 1, be provided with pilot hole 11, in the inside of pilot hole 11, be provided with hole shoulder 12.
As shown in Figure 3, one end of resilient sleeve 2 is divided into 3 and clamps lobe 21, in 3 outsides that clamp lobe 21, has all been set as the first wedging inclined-plane 22.As shown in Figure 1, resilient sleeve 2 is among pilot hole 11 and penetrates described hole shoulder 12.
As shown in Figure 1, tensioner lining 3 and expansion sleeve 4 are all between pilot hole 11 and resilient sleeve 2, and tensioner lining 3 and expansion sleeve 4 are also successively set between shoulder the 12 and first wedging inclined-plane 22, hole.As shown in Figure 7, Figure 8, one end of expansion sleeve 4 is provided with the second wedging inclined-plane 41, and the other end of expansion sleeve 4 is provided with the 3rd wedging inclined-plane 42.As shown in Figure 5, Figure 6, tensioner lining 3 is provided with the 4th wedging inclined-plane 31.The first wedging inclined-plane 22 and the second wedging inclined-plane 41 cooperatings; The 3rd wedging inclined-plane 42 and the 4th wedging inclined-plane 31 cooperatings.
As shown in Figure 1, when resilient sleeve 2 being drawn in drive link (not shown) to the pilot hole 11 of base of the carrier head 1, also can drive expansion sleeve 4 toward hole, to take on 12 directions motions simultaneously, now the first wedging inclined-plane 22 will draw in the second wedging inclined-plane 41 cooperatings and clamp lobe 21, meanwhile, the 3rd wedging inclined-plane 42 also will draw in the 4th wedging inclined-plane 31 cooperatings and clamp lobe 21.Thereby can precisely feel relieved, clamp workpiece to be processed.
As shown in Figure 9, the difference of the present embodiment and embodiment 1 is: tube reducing cover 5 is also housed in resilient sleeve 2.As shown in Figure 10, Figure 11, tube reducing cover 5 be cylindric, is shaped with 3 weakens longitudinally groove 51 in one end of tube reducing cover 5, overlaps 5 the other end be also shaped with 3 and weaken longitudinally groove 51 at tube reducing.What tube reducing overlapped 5 two ends weakens groove 51 being upwards uniformly distributed in week at tube reducing cover 5.On tube reducing cover 5, be also provided with spacing convex shoulder 52.Spacing convex shoulder 52 is against the end that resilient sleeve 2 clamps lobe 21 place ends, limits the relative position between tube reducing cover 5 and resilient sleeve 2.
As shown in Figure 12, Figure 13, Figure 14, the difference of the present embodiment and embodiment 2 is: the two ends of tube reducing cover 6 are formed with thinner wall section 62; The groove 61 that weakens starting from one end extends to the thinner wall section 62 other one end.
What this description was enumerated is only preferred embodiments of the present utility model, and all equivalent technologies conversion of doing under operation principle of the present utility model and thinking, are all considered as protection domain of the present utility model.
Claims (6)
1. high-precision accurate centring chuck, comprises base of the carrier head and resilient sleeve; On base of the carrier head, be provided with pilot hole; One end of resilient sleeve is divided into some clamping lobes, in the outside that clamps lobe, has been set as the first wedging inclined-plane; It is characterized in that: in the inside of pilot hole, be provided with hole shoulder; Resilient sleeve is among pilot hole and penetrates described hole shoulder; Between pilot hole and resilient sleeve, be also provided with tensioner lining and expansion sleeve; Tensioner lining and expansion sleeve are successively set between hole shoulder and the first wedging inclined-plane; One end of expansion sleeve is provided with the second wedging inclined-plane, and the other end of expansion sleeve is provided with the 3rd wedging inclined-plane; Tensioner lining is provided with the 4th wedging inclined-plane; Described the first wedging inclined-plane and the second wedging inclined-plane cooperating; Described the 3rd wedging inclined-plane and the 4th wedging inclined-plane cooperating.
2. high-precision accurate centring chuck as claimed in claim 1, is characterized in that: described tensioner lining is made into integration on the shoulder of hole.
3. high-precision accurate centring chuck as claimed in claim 1 or 2, is characterized in that: tube reducing cover is also housed in resilient sleeve; Described tube reducing cover, for cylindric, is shaped with some grooves that weaken longitudinally in one end of tube reducing cover; The other end at tube reducing cover is also shaped with some grooves that weaken longitudinally; At tube reducing, put and be also provided with spacing convex shoulder.
4. high-precision accurate centring chuck as claimed in claim 3, is characterized in that: tube reducing cover two ends weaken groove being upwards uniformly distributed in week at tube reducing cover.
5. high-precision accurate centring chuck as claimed in claim 3, is characterized in that: the two ends of described tube reducing cover are formed with thinner wall section; The groove that weakens starting from one end extends to the thinner wall section other one end.
6. high-precision accurate centring chuck as claimed in claim 4, is characterized in that: the two ends of described tube reducing cover are formed with thinner wall section; The groove that weakens starting from one end extends to the thinner wall section other one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320455760.2U CN203459698U (en) | 2012-12-09 | 2013-07-29 | High-accuracy centering chuck |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220674767.9 | 2012-12-09 | ||
| CN201220674767 | 2012-12-09 | ||
| CN201320455760.2U CN203459698U (en) | 2012-12-09 | 2013-07-29 | High-accuracy centering chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203459698U true CN203459698U (en) | 2014-03-05 |
Family
ID=50172081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320455760.2U Expired - Fee Related CN203459698U (en) | 2012-12-09 | 2013-07-29 | High-accuracy centering chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203459698U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105983714A (en) * | 2015-02-06 | 2016-10-05 | 湖北韵生航天科技有限公司 | Precise machine tool centering cylinder chuck |
| CN106736776A (en) * | 2017-03-21 | 2017-05-31 | 苏州工业职业技术学院 | A kind of aeroelasticity self-centering casing vehicle clamper |
| CN108637462A (en) * | 2018-07-12 | 2018-10-12 | 江苏锢邦智能装备有限公司 | A kind of friction welding apparatuses |
| CN110640492A (en) * | 2019-09-05 | 2020-01-03 | 中国航发北京航科发动机控制系统科技有限公司 | Sleeve part clamping device and method |
| CN111015513A (en) * | 2019-12-28 | 2020-04-17 | 南京信息职业技术学院 | Hole grinding tool for head of rock drill |
| CN111015264A (en) * | 2019-12-28 | 2020-04-17 | 南京信息职业技术学院 | Flexible bushing |
| CN112045449A (en) * | 2019-06-06 | 2020-12-08 | 弗兰茨·翰默机械制造两合公司 | Clamping device for clamping objects, in particular tools |
-
2013
- 2013-07-29 CN CN201320455760.2U patent/CN203459698U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105983714A (en) * | 2015-02-06 | 2016-10-05 | 湖北韵生航天科技有限公司 | Precise machine tool centering cylinder chuck |
| CN106736776A (en) * | 2017-03-21 | 2017-05-31 | 苏州工业职业技术学院 | A kind of aeroelasticity self-centering casing vehicle clamper |
| CN108637462A (en) * | 2018-07-12 | 2018-10-12 | 江苏锢邦智能装备有限公司 | A kind of friction welding apparatuses |
| CN112045449A (en) * | 2019-06-06 | 2020-12-08 | 弗兰茨·翰默机械制造两合公司 | Clamping device for clamping objects, in particular tools |
| CN112045449B (en) * | 2019-06-06 | 2023-08-08 | 弗兰茨·翰默机械制造两合公司 | Clamping device for clamping objects, in particular tools |
| CN110640492A (en) * | 2019-09-05 | 2020-01-03 | 中国航发北京航科发动机控制系统科技有限公司 | Sleeve part clamping device and method |
| CN111015513A (en) * | 2019-12-28 | 2020-04-17 | 南京信息职业技术学院 | Hole grinding tool for head of rock drill |
| CN111015264A (en) * | 2019-12-28 | 2020-04-17 | 南京信息职业技术学院 | Flexible bushing |
| CN111015264B (en) * | 2019-12-28 | 2021-10-01 | 南京信息职业技术学院 | Flexible bushing |
| CN111015513B (en) * | 2019-12-28 | 2022-02-15 | 南京信息职业技术学院 | Hole grinding tool for head of rock drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20150729 |
|
| EXPY | Termination of patent right or utility model |