CN1803355A - Needle roller drill point - Google Patents
Needle roller drill point Download PDFInfo
- Publication number
- CN1803355A CN1803355A CN 200510018141 CN200510018141A CN1803355A CN 1803355 A CN1803355 A CN 1803355A CN 200510018141 CN200510018141 CN 200510018141 CN 200510018141 A CN200510018141 A CN 200510018141A CN 1803355 A CN1803355 A CN 1803355A
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- CN
- China
- Prior art keywords
- lining
- axis
- drill
- drill point
- middle shaft
- 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
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Abstract
The invention discloses a needle drill chuck, which consists of upper case and lower case to connect spirally, wherein the lining is set in the upper and lower case; the lower case and lining are cone-shape; the middle shaft is set between upper case and lining, whose bottom contains pushing rod; the pushing rod anchors three-jaw to move along the taper between lower case and lining, which clamps the drill; the upper bearing and lower bearing are set on the middle shaft, which elevates the concentricity of middle shaft, case and lining greatly; The concentricity of drill is consistent with the main shaft of drill bed; the crossette and junk ring are set at relative position of middle shaft and upper case with several balls in the middle shaft and upper case; different types of liner are set on the top of middle shaft, which are fixed in the drill bed main shaft directly.
Description
Technical field
The present invention relates to a kind of needle roller drill point.
Background technology
Existing drill point, its structure are that the top is taper, make things convenient for branch sleeve, by sleeve drill point are fixedlyed connected with drill press spindle, and drill point is together turned round with drill press spindle.When we utilize the hand rotation case, also to turn round together with the driving ring of inside, therefore the teeth on the white horse with a black mane rotating ring drive the pawl that has tooth bar, make three pawls do synchronous turnover, and object is clamped.There is following shortcoming in this drill point: (1) drill point is because of the bearing that can not bear up and down or the left and right sides is stressed, so drill point can't bear side force and pressure adding man-hour for a long time, the drill point structure is loosening easily; (2) fixedly connected (i.e. axle, ring compound mode) with lining merely between drill point and drill press spindle, when drilling machine rotated, its contact-making surface was big, friction is big, concentricity is not good, thereby the drill point amplitude is big, this drill point very easily produces " reaming " phenomenon, so can't be engaged in Precision Machining.
Summary of the invention
Purpose of the present invention designs a kind of drill point exactly, and its axis, upper casing, the position that lining is relative are equipped with bearing respectively, and the situation that makes drill point not have beat when boring produces.
The present invention is achieved like this, it comprises upper casing, lower casing, pawl, lining, axis, taper hole, locating hole, crossette, push rod, driver slot, locating ring, screw, upper bearing (metal), lower bearing, pressure ring, ball, sleeve, upper casing and lower casing are screwed together, the centre is provided with lining, lining and lower casing are taper, be provided with axis between upper casing and lining, be provided with taper hole in the axis, this taper hole can insert sleeve and relative fit with drill press spindle, make the axis rotation, the axis upper end is provided with locating ring, locating ring, axis is provided with screw at relative position, locating hole, insert dowel, axis is positioned in the upper casing, and the axis lower end is provided with a push rod, and push rod has three driver slots, can collude the top margin that closes three pawls relatively, push rod and pawl be interlock together, when moving on lower casing and the upper casing, can make push rod that pawl is imposed thrust, make three-jaw follow lower casing, tapering action between lining makes things convenient for the clipping tapered end.Axis is being provided with bearing, thrust bearing between upper casing, lining relatively, axis, shell, lining three's concentricity is significantly risen, drill point is consistent with the drill press spindle concentricity, axis, upper casing are provided with crossette in relative position, be provided with pressure ring between crossette, be provided with plurality of balls in pressure ring and the crossette, constitute thrust bearing structure, on the axis top multi-form sleeve can be set, make the drill point can be directly fixedly in the drill press spindle.
The present invention has good, the compact conformation of concentricity, and amplitude is little when rotating, and can not produce " reaming " phenomenon, is widely used in the processing of precision part.
Description of drawings
Fig. 1 is a decomposing schematic representation of the present invention.
Fig. 2 is a generalized section of the present invention.
Fig. 3 is a structural representation of the present invention.
In the drawings, 1. pawl, 2. lower casing, 3. lining, 4. driver slot, 5. push rod, 6. lower bearing, 7. crossette, 8. ball, 9. axis, 10. locating hole, 11. taper holes, 12. pressure rings, 13. upper casings, 14. upper bearing (metal)s, 15. screws, 16. locating rings, 17. sleeves.
The specific embodiment
As shown in the figure, the present invention includes upper casing (13), lower casing (2), pawl (1), lining (3), axis (9), crossette (7), ball (8), pressure ring (12), lower bearing (6), upper bearing (metal) (14), push rod (5), locating ring (16), upper casing (13) is screwed together with lower casing (2), the centre is provided with lining (3), lining and lower casing are taper, be provided with an axis (9) between upper casing and lining, be provided with taper hole (11) in the axis, taper hole can insert sleeve (17) and relative fit with main shaft, make axis with main axis rotation, the axis upper end is provided with locating ring (16), locating ring, axis is provided with screw (15) at relative position, locating hole (10), inserting dowel is positioned in the upper casing axis, the axis lower end is provided with a push rod (5), push rod is divided into three driver slots (4), can collude the top margin that closes three pawls (1) relatively, push rod and pawl be interlock together, when lower casing and upper casing spiral shell move, can make push rod that pawl is imposed thrust, make three-jaw follow lower casing, be provided with upper bearing (metal) (14) between lining, lower bearing (6), make axis, shell, lining three's concentricity significantly rises, drill point is consistent with the drill press spindle concentricity, axis, the position that upper casing is relative is provided with crossette (7) and pressure ring (12), be provided with plurality of balls (8) between pressure ring and the crossette, multi-form sleeve (17) can be set on the axis top, drill point can directly be fixed in the drill press spindle.
Claims (3)
1, a kind of needle roller drill point, screw togather relatively by upper casing, lower casing and to form, be provided with lining in upper and lower shell, lower casing, lining are taper, are provided with axis between the sharp lining of upper casing, the axis bottom is provided with push rod, push rod can drive three-jaw and follow the tapering between lower casing, lining and move, and with the clipping drill bit, it is characterized in that axis is being provided with upper bearing (metal), lower bearing between upper casing, lining relatively, axis, shell, lining three's concentricity is significantly promoted, and drill bit is consistent with the drill press spindle concentricity.
2, needle roller drill point according to claim 1 is characterized in that axis, upper casing are provided with crossette and pressure ring at relative position, are provided with plurality of balls in pressure ring and the crossette.
3, needle roller drill point according to claim 1 is characterized in that the axis top can be provided with multi-form sleeve, directly to be fixed in the drill press spindle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510018141 CN1803355A (en) | 2005-01-10 | 2005-01-10 | Needle roller drill point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510018141 CN1803355A (en) | 2005-01-10 | 2005-01-10 | Needle roller drill point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1803355A true CN1803355A (en) | 2006-07-19 |
Family
ID=36865575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510018141 Pending CN1803355A (en) | 2005-01-10 | 2005-01-10 | Needle roller drill point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1803355A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110831716A (en) * | 2017-07-07 | 2020-02-21 | 布奇自动化公司 | Lathe loading jig for supporting a rod and related rod loader for a lathe |
-
2005
- 2005-01-10 CN CN 200510018141 patent/CN1803355A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110831716A (en) * | 2017-07-07 | 2020-02-21 | 布奇自动化公司 | Lathe loading jig for supporting a rod and related rod loader for a lathe |
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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 |