CN104841978A - Bush clamp for central hole drilling - Google Patents
Bush clamp for central hole drilling Download PDFInfo
- Publication number
- CN104841978A CN104841978A CN201510288298.5A CN201510288298A CN104841978A CN 104841978 A CN104841978 A CN 104841978A CN 201510288298 A CN201510288298 A CN 201510288298A CN 104841978 A CN104841978 A CN 104841978A
- Authority
- CN
- China
- Prior art keywords
- lining
- bush
- drill
- overcoat
- hole
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
- B23B47/28—Drill jigs for workpieces
- B23B47/281—Jigs for drilling cylindrical parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
- B23B49/02—Boring templates or bushings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a bush clamp for central hole drilling. The bush clamp comprises a bush sleeving a to-be-machined shaft. An outer sleeve sleeves the bush. A guide drill sleeve for guiding a central drill and allowing the same to keep vertical is mounted on the upper portion of the outer sleeve in an embedded manner. At least one first fastening screw for fixing the bush is mounted on the outer sleeve, and the first fastening screw penetrates the lateral wall of the outer sleeve to be abutted against and compressed to the outer wall of the bush. The outer sleeve and the bush is further at least provided with a second fastening screw for locking the to-be-machined shaft, and the second fastening screw sequentially penetrates the screw holes reserved in the outer walls of the outer sleeve and the bush to be abutted against and compressed to the outer wall of the to-be-machined shaft. The brush clamp has the advantages that by the ingenious design of the bush, the outer sleeve and the guide drill sleeve, the central drill is kept vertical, the to-be-machined shaft is stably and reliably clamped, the axis of a drilling machine is kept to be vertical to the section of a shaft workpiece, high machining efficiency is achieved, the machined shaft central hole is high in precision and quality, and the bush clamp is applicable to the clamping of large-diameter shaft workpieces of different sizes and is wide in application range.
Description
Technical field
The present invention relates to a kind of mechanical device of part manufacture field, be specifically related to a kind of lining fixture of drill centers.
Background technology
At present, lathe is widely used in field of machining.Lathe when processing work, such as, when working shaft-like workpiece centre bore, different shaft-like workpiece typically have a diameter from 40 ~ 80mm, length is 1000mm, diameter due to axle is greater than lathe spindle internal taper hole diameter, shaft extension cannot be entered in taper hole, so centering is more difficult on lathe.Machining center hole on rocking arm lathe is adopted in prior art.But because drilling machine axis is not easily perpendicular with shaft-like workpiece section, on inclined-plane, drill centers is just not easily being beaten, and greatly can affect the quality of processing.
Therefore, need badly on the basis of existing technology, research and develop a kind of reasonable in design, easy to use, clamp reliable and stable, and carry out the lining fixture of drill centers after can be used for diameter larger axis class piece-holder.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of lining fixture of drill centers, reasonable in design, easy to operate, clamp reliable and stable, can be used for the shaft-like workpiece clamping of the larger different size of diameter, can keep drilling machine axis and shaft-like workpiece section perpendicular, working (machining) efficiency is higher, and the axle centre bore precision processed is high, quality is high, practical.
Technical scheme: for solving the problems of the technologies described above, the lining fixture of a kind of drill centers of the present invention, comprise the lining be enclosed within outside axle to be processed, described lining outer race has overcoat, and described overcoat top is inlayed to be provided with and led for creeping into row to center and make it to keep vertical guiding drill bushing; Described outer putting is provided with at least one first trip bolt for stationary bushing, and described first trip bolt is through sleeve side wall and against the outer wall compressing lining; Described overcoat and lining are also at least provided with one for locking the second trip bolt of axle to be processed, described second trip bolt successively through be reserved in overcoat and lining sidewall screw hole and against compressing the outer wall of axle to be processed.
As preferably, described lining is column structure, has the T-type structure of vertical through hole centered by described guiding drill bushing, and described T-type structure bag draws together Transverse portion and vertical part, have the column structure of " convex " font through hole centered by described overcoat, described " convex " font through hole comprises hole and lower opening; The vertical part of described T-type structure is positioned at the upper hole of " convex " font through hole, described lining is positioned at the lower opening of " convex " font through hole, under the effect that is fixed of the first trip bolt and the second trip bolt, described lining, mutual compression fit between overcoat and guiding drill bushing.
As preferably, described lining inwall offers the groove for holding part that axle outer wall to be processed distorts.Groove is the local distortion's part going for shaft blank may exist, and facilitates the insertion of shaft-like workpiece and fixes.Such as, described groove can be toroidal cavity, also can be shallow U-shaped groove, or other erose grooves.
In order to be applicable to the axle to be processed of obstructed diameter, the internal diameter of described lining is 40 ~ 80mm.
The described outer wall of guiding drill bushing is connected by threaded engagement with the inwall of overcoat.
The bottom of described guiding drill bushing is circular cone structure, and described overcoat top offers the rounding frustum hole suitable with the frustum of a cone.Under gravity, the sloped sidewall in rounding frustum hole applies downward pressure to circular cone structure.In addition, when center driller does, due to impulsive force, guiding drill bushing is made to give overcoat more and more tighter thrust.
As preferably, the outer wall angle of inclination of described circular cone structure is 30 ° ~ 80 °, and such as can be 40 °, 70 ° angularly; More preferably, the outer wall angle of inclination of described circular cone structure is 45 ° ~ 60 °, and such as can be 50 °, 55 ° angularly.
Beneficial effect: the lining fixture of drill centers of the present invention, reasonable in design, by to lining, overcoat and orientation drill cover carry out ingehious design, make its three under the effect that is fixed of the first trip bolt and the second trip bolt, mutual compression fit is easy to operate, finally guarantee that centre drill keeps vertically, and it is reliable and stable to treat machining shaft clamping, can be used for the shaft-like workpiece clamping of the larger different size of diameter, can keep drilling machine axis and shaft-like workpiece section perpendicular, working (machining) efficiency is higher, and the axle centre bore precision processed is high, quality is high, practical, be conducive to large-scale promotion to use.
Accompanying drawing explanation
Fig. 1 structural representation of the present invention;
Fig. 2 is the A-A sectional structure schematic diagram of Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
As depicted in figs. 1 and 2, the lining fixture of a kind of drill centers of the present invention, comprise the lining 2 be enclosed within outside axle 1 to be processed, lining 2 outer race has overcoat 3, overcoat 3 top is inlayed and is provided with for leading to centre drill 5 and making it to keep vertical guiding drill bushing 4, overcoat 3 is provided with at least one first trip bolt 6 for stationary bushing 2, can be such as that two the first trip bolts 6 are symmetrical, also can be that 3 to 6 the first trip bolts 6 are circumferentially uniformly distributed, can certainly random irregular arrangement, each first trip bolt 6 is through overcoat 3 sidewall and against the outer wall compressing lining 2, overcoat 3 and lining 2 are also at least provided with one for locking the second trip bolt 7 of axle 1 to be processed, second trip bolt 7 successively through be reserved in overcoat 3 and lining 2 sidewall screw hole and against compressing the outer wall of axle 1 to be processed, equally, second trip bolt 7 can be two, two the second trip bolts 7 are symmetrical, also can be that 3 to 6 the second trip bolts 7 are circumferentially uniformly distributed, can certainly random irregular arrangement, the object of locking machining shaft 1 is reached by rotating the second trip bolt 7.
In the present embodiment, the drill bushing 4 that leads can be connected with overcoat 3 by screw thread.Guiding drill bushing 4 also can be another kind of version, the bottom of guiding drill bushing 4 is circular cone structure, overcoat 3 top offers the rounding frustum hole suitable with the frustum of a cone, and under gravity, the sloped sidewall in rounding frustum hole gives circular cone structure and applies downward pressure.In addition, when centre drill 5 works, due to impulsive force, the drill bushing 4 of making to lead is to the more and more tighter thrust of overcoat 3.
In the present embodiment, the inwall of described lining 2 is provided with groove 8, and groove 8 can be the regular shapes such as circular arc, annular, U-shaped, also can be that other are irregularly shaped.The groove 8 of various shape goes for local distortion's part that shaft blank may exist, and facilitates the insertion of shaft-like workpiece and fixes.
The lining fixture of drill centers of the present invention, when reality uses, axle 1 to be processed is inserted in lining 2, then by the first trip bolt 6, lining 2 is locked, and lock axle 1 to be processed after passing the screw hole of lining 2 and overcoat 3 by the second trip bolt 7, then carry out drill centers by the centre drill 5 in guiding drill bushing 4 to the axle gripped, operation is very easy.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a lining fixture for drill centers, is characterized in that: comprise the lining be enclosed within outside axle to be processed, described lining outer race has overcoat, and described overcoat top is inlayed to be provided with and led for creeping into row to center and make it to keep vertical guiding drill bushing; Described outer putting is provided with at least one first trip bolt for stationary bushing, and described first trip bolt is through sleeve side wall and against the outer wall compressing lining; Described overcoat and lining are also at least provided with one for locking the second trip bolt of axle to be processed, described second trip bolt successively through be reserved in overcoat and lining sidewall screw hole and against compressing the outer wall of axle to be processed.
2. the lining fixture of drill centers according to claim 1, it is characterized in that: described lining is column structure, the T-type structure of vertical through hole is had centered by described guiding drill bushing, described T-type structure Bao Kuo Transverse portion and vertical part, have the column structure of " convex " font through hole centered by described overcoat, described " convex " font through hole comprises hole and lower opening; The vertical part of described T-type structure is positioned at the upper hole of " convex " font through hole, described lining is positioned at the lower opening of " convex " font through hole, under the effect that is fixed of the first trip bolt and the second trip bolt, described lining, mutual compression fit between overcoat and guiding drill bushing.
3. the lining fixture of drill centers according to claim 1, is characterized in that: described lining inwall offers the groove for holding part that axle outer wall to be processed distorts.
4. the lining fixture of drill centers according to claim 3, is characterized in that: described groove is toroidal cavity.
5. the lining fixture of drill centers according to claim 3, is characterized in that: described groove is shallow U-shaped groove.
6. the lining fixture of the drill centers according to any one of claim 1 to 5, is characterized in that: the internal diameter of described lining is 40 ~ 80mm.
7. the lining fixture of the drill centers according to any one of claim 1 to 5, is characterized in that: the described outer wall of guiding drill bushing is connected by threaded engagement with the inwall of overcoat.
8. the lining fixture of the drill centers according to any one of claim 1,3 to 5, is characterized in that: the bottom of described guiding drill bushing is circular cone structure, and described overcoat top offers the rounding frustum hole suitable with the frustum of a cone.
9. the lining fixture of drill centers according to claim 8, is characterized in that: the outer wall angle of inclination of described circular cone structure is: 30 ° ~ 80 °.
10. the lining fixture of drill centers according to claim 9, is characterized in that: the outer wall angle of inclination of described circular cone structure is: 45 ° ~ 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510288298.5A CN104841978A (en) | 2015-05-29 | 2015-05-29 | Bush clamp for central hole drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510288298.5A CN104841978A (en) | 2015-05-29 | 2015-05-29 | Bush clamp for central hole drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104841978A true CN104841978A (en) | 2015-08-19 |
Family
ID=53842173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510288298.5A Pending CN104841978A (en) | 2015-05-29 | 2015-05-29 | Bush clamp for central hole drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104841978A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113182890A (en) * | 2021-05-26 | 2021-07-30 | 烟台海德机床有限公司 | General locator for drilling center hole |
| CN114472967A (en) * | 2022-03-16 | 2022-05-13 | 杭州汽轮铸锻有限公司 | A equipment that is used for pressure measurement lug drilling of steam line |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3923413A (en) * | 1970-12-28 | 1975-12-02 | Daniel L Giles | Centering apparatus |
| CN202028806U (en) * | 2010-02-02 | 2011-11-09 | 哈尔滨飞机工业集团有限责任公司 | Drill jig for decomposing raised head solid rivet |
| CN202239809U (en) * | 2011-09-09 | 2012-05-30 | 上海海事大学 | Drill bush component |
| CN203470980U (en) * | 2013-09-24 | 2014-03-12 | 新兴重工湖北三六一一机械有限公司 | Drilling positioning device |
| CN204621587U (en) * | 2015-04-29 | 2015-09-09 | 盐城工学院 | The lining fixture of drill centers |
-
2015
- 2015-05-29 CN CN201510288298.5A patent/CN104841978A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3923413A (en) * | 1970-12-28 | 1975-12-02 | Daniel L Giles | Centering apparatus |
| CN202028806U (en) * | 2010-02-02 | 2011-11-09 | 哈尔滨飞机工业集团有限责任公司 | Drill jig for decomposing raised head solid rivet |
| CN202239809U (en) * | 2011-09-09 | 2012-05-30 | 上海海事大学 | Drill bush component |
| CN203470980U (en) * | 2013-09-24 | 2014-03-12 | 新兴重工湖北三六一一机械有限公司 | Drilling positioning device |
| CN204621587U (en) * | 2015-04-29 | 2015-09-09 | 盐城工学院 | The lining fixture of drill centers |
Non-Patent Citations (1)
| Title |
|---|
| 徐立正: "衬套夹具钻中心孔", 《金属加工（冷加工）》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113182890A (en) * | 2021-05-26 | 2021-07-30 | 烟台海德机床有限公司 | General locator for drilling center hole |
| CN114472967A (en) * | 2022-03-16 | 2022-05-13 | 杭州汽轮铸锻有限公司 | A equipment that is used for pressure measurement lug drilling of steam line |
| CN114472967B (en) * | 2022-03-16 | 2023-11-17 | 杭州汽轮铸锻股份有限公司 | Equipment for drilling pressure measuring lug of steam pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150819 |
|
| RJ01 | Rejection of invention patent application after publication |