CN200957461Y - Fast self-locking drill dop - Google Patents
Fast self-locking drill dop Download PDFInfo
- Publication number
- CN200957461Y CN200957461Y CN 200620079274 CN200620079274U CN200957461Y CN 200957461 Y CN200957461 Y CN 200957461Y CN 200620079274 CN200620079274 CN 200620079274 CN 200620079274 U CN200620079274 U CN 200620079274U CN 200957461 Y CN200957461 Y CN 200957461Y
- Authority
- CN
- China
- Prior art keywords
- drill chuck
- shell
- cart
- claw
- draw ring
- 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 relates to the mechanical processing field, or a rapid self-locking drill chuck to be specific. The utility model is aimed to provide a simple rapid self-locking drill chuck to overcome problems of the prior art. To achieve the above goal, the utility model adopts the following technical scheme: a rapid self-locking drill chuck includes a claw, a body, and a shell. The utility model is unique in that the claw is arranged in the equally parted inclined cylinder hole at the front end of the body, and the rear end of the claw is connected with a sliding pulling sleeve on the external diameter of the body; between the pulling sleeve and the shell is a pulling ring connected with the shell in rotary way; between the pulling sleeve and pulling ring is a nut with telescopic diameter; the inner diameter of the rear end of the pulling ring is a taper, which matches with the external diameter of nut. The utility model has the following advantages: without keys, the rapid self-locking drill chuck can lock drills by screwing the shell directly; after drilling and cutting are completed or drills have to be replaced, the drills can be screwed reversely for dismantling. The utility model can achieve the maximum and minimum holding scope of drill chuck.
Description
Technical field
The utility model relates to field of machining, is specifically related to a kind of fast self-locking formula drill chuck head.
Background technology
Common drill chuck head need be locked with key when the locking drill bit, and when changing the drill bit specification, twist 12 circles, just can reach maximum, the minimum zone of drill chuck head.Therefore, common drill chuck head can not satisfy the operating personnel's of frequent replacing drill bit specification requirement, has reduced operating efficiency, can not satisfy the demand of domestic and international market.
Summary of the invention
The purpose of this utility model is to provide a kind of fast self-locking formula drill chuck head simple to operate, to overcome the problem that prior art exists.
For achieving the above object, the technical solution adopted in the utility model is: a kind of fast self-locking formula drill chuck head, comprise claw 1, main body 2, shell 3, its special character is, claw 1 is arranged on main body 2 front ends and axially goes up in the oblique circular cylinder hole of five equilibrium, and claw 1 rear end 5 is connected with helping pull a cart of can sliding on main body 2 external diameters; Help pull a cart 5 with shell 3 between a draw ring 7 that is connected with shell 3 spirals is set; Help pull a cart 5 and draw ring 7 between the telescopic nut 8 of a diameter is set; Draw ring 7 back end inside diameter are the conical surface 10, match with nut 8 external diameters.
Above-mentioned draw ring 7 front ends are provided with ratchet 4, and ratchet 4 contacts cooperation with the hook tooth of 5 external diameters of helping pull a cart.
Be provided with back seat 9 behind the above-mentioned shell 3, the screw thread of back seat 9 internal diameters is connected with the external screw thread of main body 2, and has the groove of axial five equilibrium and key and main body 2 fixing.
Above-mentioned helping pull a cart 5 is fixed in the spring locking groove of draw ring 7 front inner diameter by jump ring 11.
Above-mentioned nut 8 closely cooperates by the conical surface 10 of a tension spring 12 with draw ring 7 back end inside diameter.
Above-mentioned help pull a cart 5 and nut 8 between be provided with steel ball rack 6.
Above-mentioned claw is the three-pawl type structure.
The utility model is with respect to prior art, and its advantage is as follows:
1, need not key, directly turn shell, just can lock drill bit by hand-power;
2, more during bit change, only need to twist, increase work efficiency once enclosing the minimum and maximum clamping range that can reach drill chuck head;
3, drilling end or more bit change only need oppositely to twist, just can unload drill bit by pine.
Description of drawings
Fig. 1 is the structural representation of the utility model gripping orientation;
Fig. 2 is the structural representation of the utility model releasing orientation.
Reference numeral:
1-claw, 2-main body, 3-shell, 4-ratchet, 5-help pull a cart 6-steel ball rack, 7-draw ring, 8-nut, 9-back seat, 10-conical surface, 11-jump ring, 12-tension spring.
The specific embodiment
Referring to Fig. 1, Fig. 2, a kind of fast self-locking formula drill chuck head comprises claw 1, main body 2, shell 3, and claw is the three-pawl type structure, claw 1 is arranged on main body 2 front ends and axially goes up in the oblique circular cylinder hole of five equilibrium, and claw 1 rear end 5 is connected with helping pull a cart of can sliding in main body 2 external diameter grooves.Help pull a cart 5 with shell 3 between a draw ring 7 that is connected with shell 3 spirals is set, helping pull a cart 5 is fixed in the spring locking groove of draw ring 7 front inner diameter by jump ring 11.Draw ring 7 front ends are provided with ratchet 4, and ratchet 4 contacts cooperation with the hook tooth of 5 external diameters of helping pull a cart.Help pull a cart 5 and draw ring 7 between the telescopic nut 8 of a diameter is set, help pull a cart 5 and nut 8 between also be provided with steel ball rack 6.Draw ring 7 back end inside diameter are the conical surface 10, and nut 8 is close-fitting with the conical surface 10 of draw ring 7 back end inside diameter by a tension spring 12.Be provided with back seat 9 behind the shell 3, the screw thread of back seat 9 internal diameters is connected with the external screw thread of main body 2, and has the groove of axial five equilibrium and key and main body 2 fixing.
After each component assembling is finished, turn drill chuck head shell 3, make itself or a left side or right rotation, then drive draw ring 7 and move forward and backward with hand.The ratchet 4 of draw ring 7 fronts contacts with the ratchet of 5 external diameters of helping pull a cart.5 internal diameters of helping pull a cart have trisection spline and main body 2 to link, and can only slide front and back, can not rotate, so draw ring 7 and help pull a cart 5, when shell 3 rotated, the promotion of internal diameter king bolt endwisely slipped along main body 2 down simultaneously, is driving claw 1 and is doing flexible clamping, unclamps action.
When help pull a cart 5 to front slide push card pawl 1 when main body 2 inclined hole Shens go out to clip drill bit, claw 1 and help pull a cart 5 no longer mobile.And draw ring 7 is still continuing to front slide under the king bolt of shell 3 promotes.Up to being with steel ball rack 6, nut 8 contacts.Nut 8 is after conical surface compression, and internal diameter whorl and main body 2 are threaded.Shell 3 is rotated further, and drives draw ring 7, nut 8 rotations.Ratchet on the draw ring 7 is in the also dislocation relatively of ratchet to helping pull a cart on 5 under the effect of certain force.Up to nut 8 promote steel ball rack 6, help pull a cart 5, claw 1, with drill jig enough tightly, and lock by click.
If unclamp: twist shell 3 in the other direction with hand, then drive draw ring 7, help pull a cart 5, claw 1, slides left along main body 2, nut 8 opens screw thread and main body 2 disengagings voluntarily, and claw 1 unclamps.
Claims (7)
1, a kind of fast self-locking formula drill chuck head, comprise claw (1), main body (2), shell (3), it is characterized in that claw (1) is arranged on main body (2) front end and axially goes up in the oblique circular cylinder hole of five equilibrium, claw (1) rear end is connected with help pull a cart (5) that can slide on main body (2) external diameter; Help pull a cart and between (5) and the shell (3) draw ring (7) that is connected with shell (3) spiral is set; Help pull a cart the telescopic nut of a diameter (8) is set between (5) and the draw ring (7); Draw ring (7) back end inside diameter is the conical surface (10), matches with nut (8) external diameter.
2, fast self-locking formula drill chuck head according to claim 1 is characterized in that, described draw ring (7) front end is provided with ratchet (4), and ratchet (4) contacts cooperation with the hook tooth of (5) external diameter of helping pull a cart.
3, fast self-locking formula drill chuck head according to claim 1 and 2, it is characterized in that, be provided with back seat (9) behind the described shell (3), the screw thread of back seat (9) internal diameter is connected with the external screw thread of main body (2), and has the groove of axial five equilibrium and key and main body (2) fixing.
4, fast self-locking formula drill chuck head according to claim 2 is characterized in that, described helping pull a cart (5) is fixed in the spring locking groove of draw ring (7) front inner diameter by jump ring (11).
5, fast self-locking formula drill chuck head according to claim 4 is characterized in that, described nut (8) closely cooperates by the conical surface (10) of a tension spring (12) with draw ring (7) back end inside diameter.
6, fast self-locking formula drill chuck head according to claim 5 is characterized in that, is provided with steel ball rack (6) between described helping pull a cart (5) and the nut (8).
7, fast self-locking formula drill chuck head according to claim 6 is characterized in that, described claw is the three-pawl type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620079274 CN200957461Y (en) | 2006-06-28 | 2006-06-28 | Fast self-locking drill dop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620079274 CN200957461Y (en) | 2006-06-28 | 2006-06-28 | Fast self-locking drill dop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200957461Y true CN200957461Y (en) | 2007-10-10 |
Family
ID=38784334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620079274 Expired - Fee Related CN200957461Y (en) | 2006-06-28 | 2006-06-28 | Fast self-locking drill dop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200957461Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11084105B2 (en) | 2017-10-18 | 2021-08-10 | Milwaukee Electric Tool Corporation | Chuck assembly for a rotary power tool |
| US11148209B2 (en) * | 2018-09-17 | 2021-10-19 | Black & Decker Inc. | Power tool chuck |
-
2006
- 2006-06-28 CN CN 200620079274 patent/CN200957461Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11084105B2 (en) | 2017-10-18 | 2021-08-10 | Milwaukee Electric Tool Corporation | Chuck assembly for a rotary power tool |
| US11148209B2 (en) * | 2018-09-17 | 2021-10-19 | Black & Decker Inc. | Power tool chuck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071010 |