CN201020550Y - Self-locking type self-tightening drill chuck - Google Patents
Self-locking type self-tightening drill chuck Download PDFInfo
- Publication number
- CN201020550Y CN201020550Y CNU2006201412118U CN200620141211U CN201020550Y CN 201020550 Y CN201020550 Y CN 201020550Y CN U2006201412118 U CNU2006201412118 U CN U2006201412118U CN 200620141211 U CN200620141211 U CN 200620141211U CN 201020550 Y CN201020550 Y CN 201020550Y
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- CN
- China
- Prior art keywords
- drill chuck
- locking
- lock dog
- connector
- self
- 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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Abstract
The utility model provides a new type of keyless drill chuck capable of self-locking, comprising a connecting body and a gripping jaw, wherein the connecting body is fitted and connected with a drive machinery; the drill chuck also contains a chuck body and an installation sleeve that are longitudinally positioned and surround the connecting body; the chuck body is connected with the installation sleeve; a griping jaw groove is arranged inside the chuck body; the gripping jaw is connected by reverse threads with the front end of the connecting body; a serrate groove is arranged on the lateral side at the rear end of the installation sleeve; a locking block installation seat is arranged at the rear end of the connecting body; a rotary locking block fitted with the serrate groove is arranged on the locking block installation seat; a leaf spring that acts on the locking block is also arranged on the drill chuck; a locking operation sleeve is arranged at the rear end of the drill chuck; a configuration for controlling the locking block is arranged inside the locking operation sleeve. Simply-structured, light in weight and convenient to operate, the utility model is capable of self-locking so that the gripping jaw can keep gripping the drill once the drill is gripped whether the drill chuck rotates in the positive or the negative direction.
Description
Technical field
The utility model relates to a kind of keyless drill chuck, relates in particular to a kind of for example keyless drill chuck on the drilling machine of plant equipment that is installed in.
Background technology
In the prior art, keyless drill chuck is provided with connector, jaw, jaw leading truck, protheca, middle cover and the back cover that is connected with driving device.The screw rod that is threaded and is connected with jaw in the endoporus of connector moves forward and backward and clamps or the drilling tool that gets loose thereby the advance and retreat by screw rod drive jaw.The keyless drill chuck structure more complicated of this structure, length is long, from great, cost is high.This drill chuck, jaw also might become flexible and get loose to the clamping of drill bit when drill chuck reverses.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of simple in structure and the time can both clamp the new-type keyless drill chuck of self-locking of drill bit in the positive and negative rotation of drill chuck.For this reason, the utility model is by the following technical solutions: it comprises connector, jaw, connector and driving device are connected, described drill chuck also is provided with around the collet body of the axial location of connector and installation sleeve, collet body is connected with installation sleeve, be provided with the jaw groove in the collet body, described jaw is connected with the front end reverse thread of connector, the side, rear end of installation sleeve is provided with serrated slot, the rear end of connector is provided with the lock dog mount pad, the lock dog mount pad is provided with the rotatable lock dog that cooperates with serrated slot, described drill chuck also is provided with the spring leaf that acts on lock dog, rear end at described drill chuck also is provided with the locking operation cover, is provided with the configuration of control lock dog in the locking operation cover.Because adopt the technical solution of the utility model, the utility model is simple in structure, and is easy to operate from heavy and light, and has auto-lock function, make after jaw clamps drill bit, no matter forward and backward rotation drill chuck, jaw can both remain the clamping to drill bit.
Fig. 1 is the cutaway view of embodiment that the utility model provides.
Fig. 2 is under the self-locking state, the A-A cutaway view of Fig. 1.
Fig. 3 is under the non-self-locking state, the A-A cutaway view of Fig. 1.
Fig. 4 is the explosive view of Fig. 1.
The specific embodiment
With reference to accompanying drawing.The utility model comprises connector 3, jaw 2, connector and driving device are connected, described drill chuck also is provided with around the collet body 1 of the axial location of connector and installation sleeve 5, collet body is connected with installation sleeve, be provided with jaw groove 21 in the collet body, described jaw is connected with front end 32 reverse threads of connector, the side, rear end of installation sleeve is provided with serrated slot 51, the rear end of connector is provided with lock dog mount pad 6, the lock dog mount pad is provided with the rotatable lock dog 8 that cooperates with serrated slot, described drill chuck also is provided with the spring leaf 7 that acts on lock dog, also is provided with locking operation cover 11 in the rear end of described drill chuck, is provided with the configuration of control lock dog in the locking operation cover.
Drill chuck has 3 jaws, and is corresponding, and jaw groove 21 also is 3 and evenly is arranged in the collet body along the drill chuck circumferencial direction.Collet body 1 and installation sleeve 5 adopt and are threaded, and connector has the positioning boss 33 of collet body 1 and installation sleeve 5, and drawing reference numeral 4 is the ball between positioning boss 33 and the installation sleeve 5.
Connector is provided with central through hole 34, the back segment and the driving device of central through hole are connected, the leading portion of central through hole cooperates with the connecting bolt that is connected driving device and connector, and the part that the connector central through hole cooperates with connecting bolt is provided with the contraction section 35 that cooperates with connecting bolt.Like this, drill chuck can be connected with connecting bolt by the hole with driving device and be connected, and further guarantees the reliably working of drill chuck at both forward and reverse directions.
Described locking operation cover is controlled the slot to make way 112 that cooperates with lock dog that is configured as of lock dog.Drawing reference numeral 9 is installed and rotating pin for the lock dog that is arranged on the lock dog mount pad 6.
The lock dog mount pad is provided with limit 61, and described locking operation is arranged with the limit 113,114 that cooperates with the limit of lock dog mount pad under self-locking state and under non-self-locking state, has certain angle between the limit 113 of described locking operation cover and the limit 114; Described lock dog mount pad is enclosed within the rear end of connector, by the limit cooperation itself and connector are circumferentially located, drawing reference numeral 62 is the limit that cooperates with connector on the lock dog mount pad, drawing reference numeral 31 is the limit that cooperates with limit 62 on the connector, in the axial direction, the lock dog mount pad is installed on the installation sleeve, and drawing reference numeral 10 is a catch, also has limit 101 that cooperates with limit 113 and 114 and the limit 102 that cooperates with limit 31 on the catch.Make that like this operation and installation of the present utility model are more convenient.Drawing reference numeral 12 is the location jump ring.Certainly, lock dog mount pad and connector can be one.
Lock dog mount pad 7 is provided with the mount pad 16 of spring leaf, and spring leaf is installed on the mount pad 16.Like this, make the mounting structure also simplified spring leaf.
When being in non-self-locking state, with reference to accompanying drawing 3, the end of spring leaf is pressed on the lock dog, but overlaps the effect of 11 inwalls to lock dog because of locking operation, and the lock end and the teeth groove of lock dog are in disengaged position.After drill chuck clamps drill bit, clockwise rotate locking operation cover 11, an end of lock dog drops in the slot to make way 112 of locking operation cover 11, and because the end of spring leaf is pressed on the lock dog, lock dog rotates, and lock dog lock end 81 cooperates with teeth groove, and drill chuck is in self-locking state.At this moment, unless during end-of-job, 11 reverse rotations of operation locking operating sleeve, otherwise, even the lathe backward rotation, because the lock end is withstood by teeth groove, can not relatively rotate between collet body and installation sleeve and the connector, jaw remains the clamping to drill bit, thereby realizes self-locking, so keyless drill chuck can work in the positive and negative both direction of lathe simultaneously.
Claims (6)
1. new-type keyless drill chuck of self-locking, comprise connector, jaw, connector and driving device are connected, it is characterized in that described drill chuck also is provided with around the collet body and the installation sleeve of the axial location of connector, collet body is connected with installation sleeve, be provided with the jaw groove in the collet body, described jaw is connected with the front end reverse thread of connector, the side, rear end of installation sleeve is provided with serrated slot, the rear end of connector is provided with the lock dog mount pad, the lock dog mount pad is provided with the rotatable lock dog that cooperates with serrated slot, described drill chuck also is provided with the spring leaf that acts on lock dog, rear end at described drill chuck also is provided with the locking operation cover, is provided with the configuration of control lock dog in the locking operation cover.
2. the new-type keyless drill chuck of a kind of self-locking as claimed in claim 1 is characterized in that the slot to make way that cooperates with lock dog that is configured as of described locking operation cover control lock dog.
3. the new-type keyless drill chuck of a kind of self-locking as claimed in claim 1, it is characterized in that the lock dog mount pad is provided with the limit, described locking operation is arranged with the limit that cooperates with the limit of lock dog mount pad under self-locking state and under non-self-locking state, have certain angle between two kinds of limits of described locking operation cover; Described lock dog mount pad is enclosed within the rear end of connector, and the lock dog mount pad is provided with the limit of matching with connector.
4. the new-type keyless drill chuck of a kind of self-locking as claimed in claim 3 is characterized in that described drill chuck is provided with catch in the rear end of lock dog mount pad, and catch is provided with the limit that cooperates with the limit of connector and locking operation cover.
5. the new-type keyless drill chuck of a kind of self-locking as claimed in claim 1 is characterized in that the lock dog mount pad is provided with the mount pad of spring leaf, and spring leaf is installed on the described mount pad.
6. the new-type keyless drill chuck of a kind of self-locking as claimed in claim 1, it is characterized in that connector is provided with central through hole, the back segment and the driving device of central through hole are connected, the leading portion of central through hole cooperates with the connecting bolt that is connected driving device and connector, and the part that the connector central through hole cooperates with connecting bolt is provided with the contraction section that cooperates with connecting bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201412118U CN201020550Y (en) | 2006-12-15 | 2006-12-15 | Self-locking type self-tightening drill chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201412118U CN201020550Y (en) | 2006-12-15 | 2006-12-15 | Self-locking type self-tightening drill chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201020550Y true CN201020550Y (en) | 2008-02-13 |
Family
ID=39087957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201412118U Expired - Fee Related CN201020550Y (en) | 2006-12-15 | 2006-12-15 | Self-locking type self-tightening drill chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201020550Y (en) |
-
2006
- 2006-12-15 CN CNU2006201412118U patent/CN201020550Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |