CN201033359Y - Self-locking type novel keyless drill chuck - Google Patents
Self-locking type novel keyless drill chuck Download PDFInfo
- Publication number
- CN201033359Y CN201033359Y CNU2006201411609U CN200620141160U CN201033359Y CN 201033359 Y CN201033359 Y CN 201033359Y CN U2006201411609 U CNU2006201411609 U CN U2006201411609U CN 200620141160 U CN200620141160 U CN 200620141160U CN 201033359 Y CN201033359 Y CN 201033359Y
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- CN
- China
- Prior art keywords
- self
- drill chuck
- locking
- adapter sleeve
- connector
- 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 discloses a new self-locking self-fasten drill chuck, which comprises a connector, a screw rod which is reversely screwed with the central hole of the connector, a gripping jaw, a front sleeve, a drive machinery matching connected with the connector; wherein, a rear sleeve, a guide frame of the jaw and a joint sleeve connected with the front sleeve are also arranged in the drill chuck; a positioning boss of the front sleeve and the joint sleeve is arranged in the connector; an spring piece with self-locking function is arranged at the back end of the joint sleeve; a plurality of saw teeth matched with the self-locking part of the spring piece are arranged for the connector on corresponding position to the spring piece; an outward heave is arranged in the spring piece; a configuration matched with the heave is arranged in the rear sleeve; a retaining sleeve is also arranged outside the rear sleeve at the back end of the drill chuck. The utility model has the advantages of convenient operation, self-locking function and always clamping the drill bit for the jaw whether positive and reverse rotation after the jaw clamps the drill bit.
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, the collet body that is connected with driving device and is centered around a plurality of bodies on drill chuck surface.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.This drill chuck, jaw 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 easy to operate and the time can both clamp the novel 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, the screw rod that is connected with connector centre bore reverse thread, jaw, protheca, connector and driving device are connected, described drill chuck also is provided with back cover and jaw leading truck, the adapter sleeve that is connected with protheca, connector is provided with the positioning boss of protheca and adapter sleeve, the rear end of adapter sleeve has been provided with the spring leaf of self-locking action, connector is provided with the sawtooth that cooperates with the self-locking position of spring leaf in the position corresponding with spring leaf, described spring leaf is provided with outside projection, be arranged with the configuration that cooperates with projection after described, described drill chuck rear end also is provided with fixed cover outside the cover of back.Because adopt the technical solution of the utility model, the utility model is easy to operate, and has auto-lock function, drill chuck after jaw clamps drill bit, no matter forward and reverse rotation, jaw clamps drill bit all the time.
Description of drawings
Fig. 1 partly cuts open schematic diagram for embodiment's provided by the utility model.
Fig. 2 is under the non-self-locking state, the A-A cutaway view of Fig. 1.
Fig. 3 is under the self-locking state, the A-A cutaway view of Fig. 1.
Fig. 4 is the B-B cutaway view of Fig. 1.
Fig. 5 is the explosive view of Fig. 1.
The specific embodiment
With reference to accompanying drawing.The utility model comprises connector 1, the screw rod 4 that is connected with connector centre bore reverse thread, jaw 3, protheca 2, connector and driving device are connected, described drill chuck also is provided with back cover 8 and jaw leading truck 100, the adapter sleeve 6 that is connected with protheca, in the present embodiment, protheca and adapter sleeve are threaded, connector is provided with the positioning boss 12 of protheca and adapter sleeve, the rear end of adapter sleeve has been provided with the spring leaf 7 of self-locking action, connector is provided with the sawtooth 11 that cooperates with the self-locking position of spring leaf in the position corresponding with spring leaf, described spring leaf is provided with outside projection, be arranged with the configuration that cooperates with projection after described, described drill chuck rear end also is provided with fixed cover 9 outside the cover of back.Drawing reference numeral 5 is the ball between adapter sleeve and the positioning boss 12.
Totally 3 of jaws in the drill chuck evenly are provided with along the drill chuck circumference, and jaw leading truck 10 also is centered around outside the connector, and are threaded with adapter sleeve and make that assembling is very convenient, and jaw is in the jaw gathering sill 101 in the jaw leading truck 100.Drawing reference numeral 13 is the centre bore in the connector, and its rear portion cooperates with driving device, and the front portion is threaded with screw rod 4.
When using the utility model, the operator holds fixed cover on the other hand, overlaps after the hand operated, can finish clamping continuously, from latching operation or release, the operation that gets loose, and operation is very easy to make drill chuck.In the present embodiment, the back cover extends forward, covers outside the protheca with respect to place, drill chuck operating position.Like this, on the surface of drill chuck, the back cover becomes the most significant body, and it has covered place, drill chuck operating position, makes the operator can operate the back cover very naturally and carries out the drill chuck operation, makes the operation of drill chuck easier,
Described spring leaf 7 comprise the projection 72 of positioning action to outer lug, and near the projection 73 at self-locking position.The self-locking position of described spring leaf is the lock end 71 of spring leaf.The configuration that described back cover cooperates with projection has the groove 82,85,81 that cooperates with projection.The rear end of adapter sleeve is provided with the mounting groove 61 of spring leaf, and projection 72 and 73 is in the mounting groove 61.
The rear end of described adapter sleeve is provided with the limit 62 of transmitting torsion, is arranged with the limit that cooperates with the limit of described adapter sleeve after described.
The limit that described back cover cooperates with the limit of described adapter sleeve is for reaching the limit 83 that cooperates with the limit of adapter sleeve on the limit 84 that cooperates with the limit of adapter sleeve under the self-locking state under non-self-locking state.Have certain angle between limit 83 and the limit 84, like this, also can increase the torsion of input, increase the clamping force of jaw drill bit.
As shown in Figure 1, the back cover cooperates with the rear end axial limiting of described adapter sleeve, after being pressed in, fixed cover 9 puts, drawing reference numeral 10 is the location elastic circlip, drawing reference numeral 91 is the opposite side on the fixed cover 9, drawing reference numeral 14 is the opposite side that cooperates with opposite side 91 on the connector rear end, the circumferential rotation of the engagement limits fixed cover by two opposite side.
When being in non-self-locking state, with reference to accompanying drawing 2, the projection 72 of positioning action is in the groove 82, and the projection 73 at close self-locking position is in the groove 81, and the lock end 71 and the sawtooth 11 of spring leaf are in disengaged condition.Cover 8 after being rotated counterclockwise, because the projection of spring leaf is in the groove of groove 61 and back cover, adapter sleeve 6, protheca 2, jaw leading truck 100 are driven to rotate, jaw stretches out the clamping drill bit gradually, and after jaw clamped drill bit substantially, adapter sleeve 6, protheca 2, jaw leading truck 100 temporarily stopped operating, back cover 8 turns over certain angle, with reference to Fig. 3, the limit 84 of back cover 8 matches with the limit 62 of adapter sleeve, and drill chuck enters self-locking state.At this moment, projection 72 is in the groove 85, projection 73 near the self-locking position skids off groove 81, and spring leaf is oppressed by back cover inwall, in the serrated slot that lock end 71 inserts between sawtooth, be rotated further the back cover, at this moment, the lock end is in unidirectional tooth lock mated condition with sawtooth, and adapter sleeve 6, protheca 2, jaw leading truck 100 can be driven continues rotation, thereby import bigger torsion, jaw is clamped drill bit more tightly.When self-locking state, overlap 8 reverse rotations after removing not operation, otherwise, even the lathe backward rotation, because the lock end is withstood by sawtooth, can not relatively rotate between adapter sleeve and protheca and the connector by the direction of the drill bit that gets loose, jaw remains the clamping to drill bit, thereby realizes self-locking, therefore, no matter just changeing still counter-rotating, drill chuck can both keep the clamping to drill bit.
Claims (7)
1. the novel keyless drill chuck of self-locking, comprise connector, the screw rod that is connected with connector centre bore reverse thread, jaw, protheca, connector and driving device are connected, it is characterized in that described drill chuck also is provided with back cover and jaw leading truck, the adapter sleeve that is connected with protheca, connector is provided with the positioning boss of protheca and adapter sleeve, the rear end of adapter sleeve has been provided with the spring leaf of self-locking action, connector is provided with the sawtooth that cooperates with the self-locking position of spring leaf in the position corresponding with spring leaf, described spring leaf is provided with outside projection, be arranged with the configuration that cooperates with projection after described, described drill chuck rear end also is provided with fixed cover outside the cover of back.
2. the novel keyless drill chuck of self-locking as claimed in claim 1 is characterized in that the back cover extends forward, covers outside the protheca with respect to place, drill chuck operating position.
3. the novel keyless drill chuck of self-locking as claimed in claim 1, what it is characterized in that described spring leaf comprises the projection of positioning action to outer lug, and near the projection at self-locking position, the configuration that described back cover cooperates with projection has and the protruding groove that cooperates.
4. the novel keyless drill chuck of self-locking as claimed in claim 1, the rear end that it is characterized in that described adapter sleeve is provided with the limit of transmitting torsion, is arranged with the limit that cooperates with the limit of described adapter sleeve after described.
5. the novel keyless drill chuck of self-locking as claimed in claim 4, it is characterized in that the limit that described back cover cooperates with the limit of described adapter sleeve is on the limit that cooperates with the limit of adapter sleeve under the self-locking state and the limit that cooperates with the limit of adapter sleeve under non-self-locking state, have certain angle between described two kinds of limits.
6. the novel keyless drill chuck of self-locking as claimed in claim 1 is characterized in that described adapter sleeve and back axial spacing cooperation of cover.
7. the novel keyless drill chuck of self-locking as claimed in claim 1 is characterized in that described jaw leading truck is threaded with adapter sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201411609U CN201033359Y (en) | 2006-12-15 | 2006-12-15 | Self-locking type novel keyless drill chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201411609U CN201033359Y (en) | 2006-12-15 | 2006-12-15 | Self-locking type novel keyless drill chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201033359Y true CN201033359Y (en) | 2008-03-12 |
Family
ID=39194252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201411609U Expired - Fee Related CN201033359Y (en) | 2006-12-15 | 2006-12-15 | Self-locking type novel keyless drill chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201033359Y (en) |
-
2006
- 2006-12-15 CN CNU2006201411609U patent/CN201033359Y/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 |