CN2709061Y - Hard alloy drill chuck gripping jaw - Google Patents
Hard alloy drill chuck gripping jaw Download PDFInfo
- Publication number
- CN2709061Y CN2709061Y CN 200420006923 CN200420006923U CN2709061Y CN 2709061 Y CN2709061 Y CN 2709061Y CN 200420006923 CN200420006923 CN 200420006923 CN 200420006923 U CN200420006923 U CN 200420006923U CN 2709061 Y CN2709061 Y CN 2709061Y
- Authority
- CN
- China
- Prior art keywords
- drill body
- jaw
- connector
- rear end
- drill chuck
- 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.)
- Expired - Fee Related
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- Gripping On Spindles (AREA)
Abstract
The utility model relates to a gripping jaw for a hard alloy drill chuck, comprising a hollow drill body which is provided with three necks, the gripping jaw is arranged in each neck; a connector is arranged on a rear end of the drill body, a front stair step surface in the middle of the connector is contacted with an inner stair step surface of the drill body, and a plurality of rolling balls are arranged on the rear stair step surface in the middle of the connector; the external screw thread of a clamping bush is matched with a female screw of the rear end of the drill body whose front part is provided with a front cover, an inner cone aperture of the front cover is matched with the cambered surfaces of three gripping jaws, and the external screw thread in the middle of the drill body is matched with the female screw of the front cover. The front end of the connector is connected with a screw rod covered by a rubber washer, the rear ends of the three gripping jaws are arranged in the three necks of the screw rod, and a rear cap is arranged on the rear end of the front cover. The material of the gripping jaw is the hard alloy or rolled steel with high quality, a notch arranged on the edge of the gripping jaw is enchased with one or two or more pieces of formed hard alloy sheets, and a wear resistant washer is arranged on the front end of the clamping bush. The utility model has the advantages of long service life and high accuracy.
Description
Technical field
The utility model relates to a kind of drill chuck clamping jaw, is meant a kind of for example carbide alloy drill chuck clamping jaw on the drilling machine of machining equipment that is installed in especially.
Background technology
In the prior art, drill chuck generally comprises drill body, jaw, protheca, overcoat, screw rod, connector, bonnet.Connector is arranged on the drill body rear end, its front end cylindrical cooperates with drill body middle part endoporus, screw rod links to each other with connector by screw thread, three jaws are separately positioned in three skewed slots that are distributed on the drill body, and the jaw rear end is nested with on screw rod in three uniform grooves, and the drill body front end is provided with protheca, the protheca internal conical surface cooperates with the jaw cambered surface of three equal portions, be mounted with plurality of balls on the terrace of connector backstage, an overcoat is arranged behind the ball, the connector rear end is provided with a bonnet.This drill chuck shortcoming is: three jaws are that employing high-quality steel are raw material, and through processing of multiple tracks machining operation and heat treatment aftershaping, its hardness and wearability are not very high, and service life neither be very long.
The utility model content
The purpose of this utility model is to avoid above-mentioned weak point of the prior art and the product that proposes a kind of carbide alloy drill chuck clamping jaw., jaw adopts Hardmetal materials, suppresses straight forming with mould, and not only the hardness of jaw and wearability are very high, and have simplified the machining of jaw, thereby make drill chuck can keep its machining accuracy for a long time, have prolonged service life.
The purpose of this utility model can reach by following measure:
A kind of carbide alloy drill chuck clamping jaw, comprise a hollow drill body, described drill body front end edge circumferentially is provided with three draw-in grooves equally spacedly, a jaw is installed in each draw-in groove slidably, the rear portion of described drill body is provided with a connector, foreground, described connector middle part terrace contacts with step surface in the described drill body, backstage, described connector middle part terrace is provided with plurality of balls, the external screw thread of described clamping sleeve and described drill body rear end screw-internal thread fit, described drill body front portion is provided with a protheca, described protheca internal taper hole cooperates with uniform three jaw cambered surfaces, described drill body is connected with the internal thread of described protheca by its middle part external screw thread, described connector front end is connected with screw rod, be with a rubber washer on the described screw rod, the rear end of described three jaws is placed in three draw-in grooves on the described screw rod, and described connector rear end is provided with the bonnet of usefulness holding screw location, and described jaw material adopts Hardmetal materials.
Jaw body adopts the high-quality steel, and its seamed edge place has a groove, is inlaid with one, two or polylith moulding hard metal tip in the groove.
Described clamping sleeve front end is provided with a wear washer.
The utility model has following advantage compared to existing technology: jaw adopts Hardmetal materials, suppress straight forming with mould, not only the hardness of jaw and wearability are very high, and simplified the machining of jaw, thereby make drill chuck can keep its machining accuracy for a long time, prolonged service life; Owing between ball and gland, increased by a packing ring, the processing and the heat treatment of packing ring all are easy to, thereby the processing and the heat treatment of gland have been simplified, and because the hardness of packing ring and the raising of the both ends of the surface depth of parallelism, make the flexibility of revolution of drill chuck better, improve service life, and the precision of drill chuck has also had raising accordingly.
Description of drawings
The carbide alloy drill chuck clamping jaw embodiment cutaway view of Fig. 1 for providing according to the utility model illustrates internal structure and outer shape.
The carbide alloy drill chuck clamping jaw forming stereo figure of the employing monoblock type Hardmetal materials that provides according to the utility model is provided Fig. 2.
The carbide alloy drill chuck clamping jaw forming stereo figure that be inlaid with hard metal tip of Fig. 3 for providing according to the utility model.
The carbide alloy drill chuck clamping jaw forming stereo figure that be inlaid with two or more hard metal tips of Fig. 4 for providing according to the utility model.
The specific embodiment
Before describing the utility model in detail, define relational language earlier:
Alleged " front end " of the utility model means in the carbide alloy drill chuck clamping jaw, an end of each jaw clamping drilling bit, the i.e. lower end of Fig. 1;
Alleged " rear end " of the utility model mean in the carbide alloy drill chuck clamping jaw, with the machining tool for example end that is connected of drilling machine, the i.e. upper end of Fig. 1.
Referring to Fig. 1, as embodiment of the present utility model, carbide alloy drill chuck clamping jaw as shown in the figure, comprise a hollow drill body 5, described drill body 5 front end edges circumferentially are provided with three draw-in grooves equally spacedly, a jaw 2 is installed in each draw-in groove slidably, the rear portion of described drill body 5 is provided with a connector 6, foreground, described connector 6 middle part terrace contacts with step surface in the described drill body 5, backstage, described connector 6 middle part terrace is provided with plurality of balls 7, one wear washer 8 is arranged on the described ball 7, be provided with a clamping sleeve 9 behind the described wear washer 8, the external screw thread of described clamping sleeve 9 and described drill body 5 rear end screw-internal thread fit, described drill body 5 front portions are provided with a protheca 1, described protheca 1 internal taper hole cooperates with uniform three jaw 2 cambered surfaces, described drill body 5 is connected with the internal thread of described protheca 1 by its middle part external screw thread, described connector 6 front ends are connected with screw rod 3, be with a rubber washer 4 on the described screw rod 3, the rear end of described three jaws 2 is placed in three draw-in grooves on the described screw rod 3, and described connector 6 rear ends are provided with the bonnet 10 of usefulness holding screw location.
A kind of embodiment carbide alloy drill chuck clamping jaw of Fig. 2 for providing according to the utility model, described jaw 2 materials adopt Hardmetal materials, and use the monoblock type contour machining procedure.
The carbide alloy drill chuck clamping jaw of the another kind of embodiment that provides according to the utility model is provided Fig. 3, and described jaw 2 materials adopt the machine-shaping of high-quality steel, and its seamed edge is processed with a groove 22, is inlaid with a formation of lots hard metal tip 21 in the described groove 22.
The another kind of embodiment carbide alloy drill chuck clamping jaw of Fig. 4 for providing according to the utility model, described jaw body 2 materials adopt the machine-shaping of high-quality steel, and its seamed edge is processed with a groove 22, is inlaid with two or polylith hard metal tip 23 in the described groove 22.
Carbide alloy drill chuck clamping jaw of the present utility model use is as follows: at first by the internal taper hole of connector 6 upper ends, the utility model carbide alloy drill chuck clamping jaw is fastened on the drill press spindle, (from the drill chuck front end) rotates described protheca 1 counterclockwise again, described protheca 1 drives described drill body 5 and rotates, the interior jaw 2 of end slot drives screw rods 3 rotations before being placed on drill body 5, thereby described three jaws 2 are moved upward simultaneously, thereby the opening of 2 of three jaws is increased, then drill bit is inserted wherein, described protheca 1 again turns clockwise, described three jaws 2 are moved downward and drill bit is clamped, can begin drilling.If bit change more, its operating process repeats no more in contrast herein.
The jaw of this carbide alloy drill chuck clamping jaw adopts Hardmetal materials, has prolonged service life; The precision of drill chuck has also had raising accordingly.
Claims (3)
1, a kind of carbide alloy drill chuck clamping jaw, comprise a hollow drill body, described drill body front end edge circumferentially is provided with three draw-in grooves equally spacedly, a jaw is installed in each draw-in groove slidably, the rear portion of described drill body is provided with a connector, foreground, described connector middle part terrace contacts with step surface in the described drill body, backstage, described connector middle part terrace is provided with plurality of balls, the external screw thread of described clamping sleeve and described drill body rear end screw-internal thread fit, described drill body front portion is provided with a protheca, described protheca internal taper hole cooperates with uniform three jaw cambered surfaces, described drill body is connected with the internal thread of described protheca by its middle part external screw thread, described connector front end is connected with screw rod, be with a rubber washer on the described screw rod, the rear end of described three jaws is placed in three draw-in grooves on the described screw rod, and described connector rear end is provided with the bonnet of usefulness holding screw location, it is characterized in that: described jaw body seamed edge place has a groove, is inlaid with the moulding hard metal tip in the groove.
2, carbide alloy drill chuck clamping jaw according to claim 1 is characterized in that: be inlaid with one, two or polylith moulding hard metal tip in the described jaw body seamed edge place groove.
3, carbide alloy drill chuck clamping jaw according to claim 1 is characterized in that: described clamping sleeve front end is provided with a wear washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420006923 CN2709061Y (en) | 2004-03-09 | 2004-03-09 | Hard alloy drill chuck gripping jaw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420006923 CN2709061Y (en) | 2004-03-09 | 2004-03-09 | Hard alloy drill chuck gripping jaw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2709061Y true CN2709061Y (en) | 2005-07-13 |
Family
ID=34848427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420006923 Expired - Fee Related CN2709061Y (en) | 2004-03-09 | 2004-03-09 | Hard alloy drill chuck gripping jaw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2709061Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212737A (en) * | 2013-04-18 | 2013-07-24 | 玉环胜友工具有限公司 | Connecting structure of shaft base and integrated guide base of self-clinching drill chuck |
| CN110814373A (en) * | 2019-11-12 | 2020-02-21 | 中航飞机起落架有限责任公司 | Self-adaptive clamp |
-
2004
- 2004-03-09 CN CN 200420006923 patent/CN2709061Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212737A (en) * | 2013-04-18 | 2013-07-24 | 玉环胜友工具有限公司 | Connecting structure of shaft base and integrated guide base of self-clinching drill chuck |
| CN103212737B (en) * | 2013-04-18 | 2016-08-31 | 玉环胜友工具有限公司 | Keyless drill chuck axle bed and the attachment structure of integrated guide bearing |
| CN110814373A (en) * | 2019-11-12 | 2020-02-21 | 中航飞机起落架有限责任公司 | Self-adaptive clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG SANOU MACHINE CO., LTD. Free format text: FORMER OWNER: SANOU (GROUP) CO., LTD. Effective date: 20070202 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070202 Address after: 318050 Luqiao science and Technology Industrial Zone, Zhejiang, Taizhou Patentee after: Sanou Machinery Co., Ltd., Zhejiang Address before: 318050, Zhejiang Taizhou Luqiao District Lunan long road hi tech Park Patentee before: Sanou (Group) Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050713 |