CN1966207A - Special jig for center bit - Google Patents
Special jig for center bit Download PDFInfo
- Publication number
- CN1966207A CN1966207A CN 200510048564 CN200510048564A CN1966207A CN 1966207 A CN1966207 A CN 1966207A CN 200510048564 CN200510048564 CN 200510048564 CN 200510048564 A CN200510048564 A CN 200510048564A CN 1966207 A CN1966207 A CN 1966207A
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- China
- Prior art keywords
- cone
- head
- sleeve
- screw
- drill
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Abstract
The invention relates to a special clamper of central driller, wherein it comprises taper whose head has drill head fixing chamber; the taper is hollow whose head is sheathed with muffle; the tail of muffle has flexible adjuster; the drill head fixing chamber is at the head of muffle; the drill head fixing chamber has central drill head locker; the muffle and the taper have locker between them; the edge of taper head and its end are sheathed with positioning sheath matched with taper head; when the central driller reaches needed size, the end of positioning sheath will contact the element; via friction, the positioning sheath will rotate along the taper head, to effectively control the size of central hole. The inventive clamper has simple structure and low cost.
Description
Technical field
The present invention relates to the centre drill special fixture that use in a kind of machine tool processing centre of location hole.
Background technology
Axial workpiece often adopts two ends centre bores location in process, therefore, whether the size of centre bore, the depth be even, will directly influence follow-up accurate processing.Especially the modern automation degree is more and more higher, can't satisfy processing request.In addition, some parts have strict demand to quenching length, and centre bore inhomogeneous can't guarantee requirement.
Conventional centre drill anchor clamps, self can't regulate, and the size of centre bore mainly depends on the precision of equipment self, the clamping error of part in clamping process, and lathe self error, operator estimate error etc., all will influence dimensional requirement.Special-purpose centre-hole machine costs an arm and a leg, and for the blank material, also has the clamping error.
Summary of the invention
Technical problem to be solved by this invention is to overcome the defective that conventional centre drill anchor clamps can't be regulated, and the size of centre bore can be effectively controlled.
For achieving the above object, the present invention adopts following technical scheme: a kind of centre drill special fixture, comprise cone, cone head has the drill bit lock chamber, described cone center is a cavity, cone cavity head cover is sleeved, the sleeve afterbody is provided with extension adjustment device, described drill bit lock chamber is opened in sleeve head, drill bit lock chamber place is provided with the center bit locking device, also be provided with locking device between sleeve and the cone, described cone head outer rim and end face suit positioning sleeve thereof, positioning sleeve cooperates with cone head is movable.
Described sleeve has screwed hole of centre, and described extension adjustment device is formed by the screw that is positioned at the cone afterbody with the leading screw of screw threaded engagement, and the leading screw other end cooperates with bush whorl, and screw stretches out the cone tail end and its outer surface is provided with dial.
Described center bit locking device is the screw that is positioned at sleeve drill bit lock chamber wall place, and the locking device between described sleeve and the cone is the screw that is positioned at the cone head outside; Be provided with bearing between described positioning sleeve and the cone head.
Adopt technical solutions according to the invention, because cone cavity head cover is sleeved, the drill bit lock chamber is opened in sleeve head, cone head outer rim and end face suit positioning sleeve thereof, positioning sleeve cooperates with cone head is movable, like this center bit is installed in the drill bit lock chamber of sleeve head and carries out work, when centre drill reaches desired size, the positioning sleeve end contacts with processing parts, positioning sleeve rotates at cone head with processing parts under the effect of frictional force, thereby the size of centre bore can be effectively controlled.The sleeve afterbody is provided with extension adjustment device, the convenient position of regulating center bit, and then the size that can regulate centre bore.This centre drill special fixture is simple in structure, and the drill chuck of size and routine is similar; Cost is low, is equivalent to the cost of conventional drill chuck; Easy to operate, before lathe, can finish adjusting; The precision height, dimensional tolerance can be controlled in 0.05.
Description of drawings
Accompanying drawing is depicted as structural representation of the present invention.
The specific embodiment
As shown in drawings, the cone 1 of this centre drill special fixture adopts the 3# Morse's taper, be connected with machine tool chief axis, its center is a cavity, cone 1 cavity head overlaps sleeved 5, sleeve 5 has screwed hole of centre, be positioned at the screw 3 of cone 1 afterbody and form extension adjustment device with the leading screw 4 of screw 3 threaded engagement, leading screw 4 other ends and sleeve 5 threaded engagement, screw 3 stretches out cone 1 tail end and its outer surface is provided with dial 2, by rotation screw 3, drives leading screw 4 and rotates together, move forward and backward thereby drag sleeve 5, reach the purpose of adjusting.Sleeve 5 heads have drill bit lock chamber 7, the spinning lock-screw 8 at drill bit lock chamber wall 7 places, spinning lock-screw 10 between the sleeve 5 and the cone 1 head outside, cone 1 external edge of head and end face suit positioning sleeve 6 thereof are provided with bearing 9 between positioning sleeve 6 and cone 1 head.
Unclamp screw 10, rotation screw 3 makes sleeve 5 protruding long enoughs (making screw 8 outside positioning sleeve 6), and clamping center bit 7 ' clamps with screw 8.After regulating size, lock-screw 10.When centre bore reaches desired processing dimension, positioning sleeve 6 will contact with part end face, together rotate with part under the effect of mill sassafras power, play positioning action, thus the size in control centre hole.When size need be adjusted, only need unclamp lock-screw 10, rotation screw 3, the numeral of dial 2 rotations is corresponding with the length that sleeve 5 stretches, and can intuitively reflect the length of adjusting, when reaching the size that needs, lock-screw 10 gets final product, and the position adjustments of center bit is very convenient.
Claims (3)
1, a kind of centre drill special fixture, comprise cone, cone head has the drill bit lock chamber, it is characterized in that: described cone center is a cavity, and cone cavity head cover is sleeved, the sleeve afterbody is provided with extension adjustment device, described drill bit lock chamber is opened in sleeve head, and drill bit lock chamber place is provided with the center bit locking device, also is provided with locking device between sleeve and the cone, described cone head outer rim and end face suit positioning sleeve thereof, positioning sleeve cooperates with cone head is movable.
2, a kind of centre drill special fixture as claimed in claim 1, it is characterized in that: described sleeve has screwed hole of centre, described extension adjustment device is formed by the screw that is positioned at the cone afterbody with the leading screw of screw threaded engagement, the leading screw other end cooperates with bush whorl, and screw stretches out the cone tail end and its outer surface is provided with dial.
3, a kind of centre drill special fixture as claimed in claim 1 or 2 is characterized in that: described center bit locking device is the screw that is positioned at sleeve drill bit lock chamber wall place, and the locking device between described sleeve and the cone is the screw that is positioned at the cone head outside; Be provided with bearing between described positioning sleeve and the cone head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510048564 CN1966207A (en) | 2005-11-18 | 2005-11-18 | Special jig for center bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510048564 CN1966207A (en) | 2005-11-18 | 2005-11-18 | Special jig for center bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1966207A true CN1966207A (en) | 2007-05-23 |
Family
ID=38075282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510048564 Pending CN1966207A (en) | 2005-11-18 | 2005-11-18 | Special jig for center bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1966207A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101856794A (en) * | 2010-06-25 | 2010-10-13 | 莱州三力汽车配件有限公司 | Special tooling for brake drum |
| CN109648122A (en) * | 2019-02-26 | 2019-04-19 | 天润曲轴股份有限公司 | Adjustable crankshaft center bores positioning device |
-
2005
- 2005-11-18 CN CN 200510048564 patent/CN1966207A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101856794A (en) * | 2010-06-25 | 2010-10-13 | 莱州三力汽车配件有限公司 | Special tooling for brake drum |
| CN109648122A (en) * | 2019-02-26 | 2019-04-19 | 天润曲轴股份有限公司 | Adjustable crankshaft center bores positioning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |