CN102649167B - Drill chuck with lubricating device - Google Patents
Drill chuck with lubricating device Download PDFInfo
- Publication number
- CN102649167B CN102649167B CN201210092895.7A CN201210092895A CN102649167B CN 102649167 B CN102649167 B CN 102649167B CN 201210092895 A CN201210092895 A CN 201210092895A CN 102649167 B CN102649167 B CN 102649167B
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- China
- Prior art keywords
- jaw
- drill chuck
- hole
- chuck body
- nut
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Abstract
The invention relates to a drill chuck with a lubricating device and solves the problems of short flexibility time and short service life of the existing drill chuck. The drill chuck is provided with a pushing lead screw, a main machine connecting hole, a pushing nut, clamping jaws and a drill chuck body, wherein the pushing lead screw is in threaded connection with the pushing nut; the pushing nut is connected with the clamping jaws; the drill chuck body is provided with clamping jaw holes; the clamping jaws are positioned in the clamping jaw holes; and a clamping jaw lubricating device is arranged on the clamping jaw body and is communicated with the clamping jaw holes. The drill chuck can be widely applied to the field of machining.
Description
Technical field
The fixture that the present invention relates to a kind of machining cutter, especially relates to a kind of drill chuck with lubricating arrangement.
Background technology
In production and processing activity, often use the operations such as the instruments such as lathe, electric drill are holed, milling, be installed on these device Host working shafts and experienced long-term application and improvement for the drill chuck of the cutter such as clamping drilling bit, milling cutter, but still have many deficiencies.
For example, Granted publication number be CN201291311Y public announcement of a patent application a kind of keyless drill chuck, as shown in Figure 1, it is provided with and promotes screw mandrel 30, promotes nut 31, shell 32, drill chuck body 33, jaw 34.Its operation principle is: with hand rotation case 32, drive drill chuck body 33 and the promotion screw mandrel 30 being connected on equipment working shaft to relatively rotate, promote nut 31 along with shell 32 and drill chuck body 33 synchronously relatively rotate with promotion screw mandrel 30 together so force, promote nut 31 moves down under the effect of screw thread that promotes screw mandrel 30, drive three jaws 34 to move down along jaw hole, space between three jaw 34 lower ends also dwindles thereupon, thereby clamps the cutter of required clamping.Now starting device motor, drill chuck will drive its work by clamp-on tool, thus the process of completing.
The subject matter that this drill chuck exists is: moving up and down in process of jaw, owing to there being certain lubricating between jaw and drill chuck body in the time that new product is assembled, so no matter be clamp or unclamp, drill chuck is all more flexible, but along with the drill chuck growth of service time, lubricating grease between jaw and drill chuck body is fewer and feweri, frictional force is between the two increasing, so just make the flexibility of whole drill chuck reduce, time has been grown the deficiency that coordinates that will make between jaw and drill chuck body, thereby the chucking power of jaw is produced to adverse influence, and drill chuck belongs to the easy-consumed goods of low value, there is not the possibility of taking again apply oil apart, so just reduce greatly the service life of drill chuck.
Summary of the invention
The present invention be directed to the problem that the above-mentioned drill chuck flexibility time is short, the life-span is short, a kind of flexibility, long drill chuck with lubricating arrangement of life-span of keeping is for a long time provided.
For this reason, the present invention is provided with and promotes screw mandrel, main frame connecting hole, promotes nut, jaw, drill chuck body, promote screw mandrel and promote to adopt and be threaded between nut, promoting nut is connected with jaw, drill chuck body is provided with jaw hole, and jaw is positioned at jaw hole, and drill chuck body is provided with jaw lubricating arrangement, it is connected with jaw hole, and jaw lubricating arrangement is poroid; The position corresponding with jaw hole, the upper end of drill chuck body is provided with ball hole, and jaw starts to be provided with deep-slotted chip breaker from upper end, and deep-slotted chip breaker is semi-spherical grooves, and the diameter of deep-slotted chip breaker is identical with the diameter in ball hole; In ball hole and deep-slotted chip breaker, be provided with place kick, place kick is identical with the diameter of ball hole and deep-slotted chip breaker, and place kick half is arranged in deep-slotted chip breaker, and second half is arranged in ball hole; Outside ball hole, be also provided with fixed cover.
The present invention is owing to being provided with poroid jaw lubricating arrangement in the lower end of drill chuck body, it is connected with jaw hole, in poroid jaw lubricating arrangement, be provided with lubricating grease, thereby jaw is in the process of moving up and down, can switch to the lubricating grease in poroid jaw lubricating arrangement, frictional force between whole jaw and drill chuck body is reduced, extended the time of the flexibility of jaw, and then extended the service life of drill chuck.
Brief description of the drawings
Fig. 1 is the structural representation of background technology of the present invention;
Fig. 2 is overall structure schematic diagram of the present invention;
Fig. 3 is STRUCTURE DECOMPOSITION schematic diagram of the present invention;
Fig. 4 A, Fig. 4 B and Fig. 4 C are clamping jaw structure schematic diagrames of the present invention.
Symbol description in figure:
1. promote screw mandrel; 2. main frame connecting hole; 3. promote nut; 4.T type groove; 5. jaw; 6. connecting hole; 7. jaw hole; 8. ball hole; 9. fixed cover; 10. cutter holes; 11. drill chuck bodies; 12. place kick; 13. dome-type grooves; 14. cannelures; 15. rectangular channels; 16. cut off; 30. promote screw mandrel; 31. promote nut; 32. shells; 33. drill chuck bodies; 34. jaws; 35.V type acrosome.
Detailed description of the invention
As shown in Figures 2 and 3, drill chuck body 11 is oblique to be processed with symmetrically three and to run through upper and lower jaw hole 7, the position corresponding with three jaw holes 7 in the upper end of drill chuck body 11 is provided with three ball holes 8, the axis of lower end edge drill chuck body 11 is processed with and is greater than the maximum cutter holes 10 that is suitable for tool assembly external diameter, promote the upper end of screw mandrel 1 and be processed with the main frame connecting hole 2 matching with the power transmission shaft of device Host that assembles this keyless drill chuck, the upper end edge axis of drill chuck body 11 is processed with and the connecting hole 6 that promotes screw mandrel 1 lower end external diameter and mate, the lower end that promotes screw mandrel 1 is movably set in connecting hole 6, between connecting hole 6 and cutter holes 10, be provided with and cut off 16, thereby both are not communicated, cutter can immediate roof not promote on screw mandrel 1 after putting into, in order to avoid cause damage to promoting screw mandrel 1.
Be processed with cannelure 14 in the lower end of drill chuck body 11, this cannelure 14 can be continuous, also can setting corresponding with jaw 5, and show as unconnected state, and its shape can be that circular hole, square poroid or triangle are poroid etc.; Cannelure 14 is connected with jaw hole 7, in cannelure 14, envelope has lubricating grease, ensure that jaw 5 can switch to the lubricating grease at cannelure 14 places in the process of moving up and down, because drill chuck body 11 lower ends and shell (not shown) closely cooperate, so lubricating grease can be to exosmosis.
The outer surface that promotes screw mandrel 1 is processed with screw thread, promoting nut 3 is processed with along axis and the internal thread that promotes screw mandrel 4 outer surface threads and mate, promoting nut 3 is rotatably connected on promotion screw mandrel 1, the position corresponding with three jaw 5 upper ends, lower end, outer that promotes nut 3 is processed with the T shape groove 4 of three openings along diametric(al), the upper end of three jaws 5 is provided with the T shape plush copper of mating with T shape groove 4, and T shape plush copper is sheathed in corresponding T shape groove 4.
Three jaws 5 are slidably installed in respectively in jaw hole 7, as Fig. 4 A, shown in Fig. 4 B and Fig. 4 C, jaw 5 is provided with two rectangular channels 15 at it with the position that promotion nut 3 is connected, on jaw 5, start to be processed with deep-slotted chip breaker 13 from upper end, this deep-slotted chip breaker 13 is preferably hemispherical, its diameter is identical with the diameter in ball hole 8, the place kick 12 identical with their two diameters put into ball hole 8, make place kick 12 half in the deep-slotted chip breaker 13 of jaw 5, half is in the ball hole 8 of drill chuck body 11 in addition, again fixed cover 9 is put into ball hole 8, place kick 12 is positioned, this place kick is preferably steel ball, also can adopt the spheroid of other materials that meet the demands.
In the process moving up and down at jaw 5, place kick 12 can be played jaw is carried out to spacing effect, make it to swing, and give certain lubricated, place kick 12 is rolled back and forth in the process that moves up and down of jaw 5, make the friction between itself and jaw 5 become rolling friction, frictional force reduces greatly, has improved the flexibility that jaw 5 moves up and down.
At the head of jaw 5, be processed with respectively a rectangular channel 15 along the both sides of dome-type groove 13, distance between two rectangular channels 15 is identical with the distance of T-shaped groove lower ending opening, put in the T-shaped plush copper of jaw 5 after the T-shaped groove 4 that promotes nut 3, jaw 5 can not radially wobble, thereby complete better the location of jaw 5, the precision of drill chuck is improved greatly.
Below the course of work of the present invention is illustrated:
Cutter is inserted in cutter holes 10, rotate and promote screw mandrel 1 with hand, because three jaws 5 are sheathed in jaw hole 7, the upper end of three jaws 5 is sheathed on respectively and promotes in three corresponding T shape grooves 4 being provided with of nut 3, therefore the rotation that promotes screw mandrel 1 forces and promotes nut 3 and promote screw mandrel 1 to relatively rotate, promote nut 3 moves down under the effect of screw thread that promotes screw mandrel 4, drive three jaws 5 to move down along jaw hole 7, space between three jaw 5 lower ends also dwindles thereupon, until clamp the cutter of putting into cutter holes 10.
Now starting device motor, promote screw mandrel 1 High Rotation Speed under the drive of working shaft, due to drill chuck body 11 and the effect of the static inertia of promotion nut 3, the starting stage starting at promotion screw mandrel 1 has stronger impulsive force to play rotation to force drill chuck body 11 and promotion nut 3 to follow one, this impulsive force further makes three jaw 5 clamp-on tools, reaction force between cutter and workpiece afterwards, also forcing drill chuck body 11 and promotion nut 3 and promoting to relatively rotate between screw mandrel 1, this has increased the chucking power of three jaws 5 to cutter equally automatically, thereby possesses the function of self-tightening, make whole keyless drill chuck there is very high precision and stability, along with the rotation of motor, jaw 5 steps up cutter and rotates gradually together, thereby complete mechanical processing process.
In the part processing not high to required precision, can only on jaw 5, be provided with deep-slotted chip breaker 13, or only change the rectangular channel 15 on jaw 5 tops into original cannelure, meet some basic processing needs.In addition, ball hole 8 is laterally got through on drill chuck body 11, can be also obliquely to get through perpendicular to jaw 5, makes place kick 12 half in ball hole 8, and half, in this spherical groove 13, completes the location of jaw 5.
Claims (1)
1. one kind has the drill chuck of lubricating arrangement, it is provided with and promotes screw mandrel, main frame connecting hole, promotes nut, jaw, drill chuck body, promote screw mandrel and promote to adopt and be threaded between nut, promoting nut is connected with jaw, drill chuck body is provided with jaw hole, and jaw is positioned at jaw hole, it is characterized in that described drill chuck body is provided with jaw lubricating arrangement, it is connected with described jaw hole, and described jaw lubricating arrangement is poroid; The position corresponding with described jaw hole, the upper end of described drill chuck body is provided with ball hole, and described jaw starts to be provided with deep-slotted chip breaker from upper end, and described deep-slotted chip breaker is semi-spherical grooves, and the diameter of described deep-slotted chip breaker is identical with the diameter in described ball hole; In described ball hole and described deep-slotted chip breaker, be provided with place kick, described place kick is identical with the diameter of described ball hole and described deep-slotted chip breaker, and described place kick half is arranged in described deep-slotted chip breaker, and second half is arranged in described ball hole; Described ball is also provided with fixed cover outside hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210092895.7A CN102649167B (en) | 2012-04-01 | 2012-04-01 | Drill chuck with lubricating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210092895.7A CN102649167B (en) | 2012-04-01 | 2012-04-01 | Drill chuck with lubricating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102649167A CN102649167A (en) | 2012-08-29 |
| CN102649167B true CN102649167B (en) | 2014-07-16 |
Family
ID=46691383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210092895.7A Expired - Fee Related CN102649167B (en) | 2012-04-01 | 2012-04-01 | Drill chuck with lubricating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102649167B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014094201A1 (en) * | 2012-12-17 | 2014-06-26 | 威海达旺五金制品有限责任公司 | Self-locking wrench drill chuck |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3934891A (en) * | 1973-04-11 | 1976-01-27 | The Jacobs Manufacturing Co., Ltd. | Drill chuck and method of assembly |
| CN201291311Y (en) * | 2008-10-30 | 2009-08-19 | 于庆滋 | Self-tightening drill chuck |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05301107A (en) * | 1991-11-11 | 1993-11-16 | Jacobs Japan Inc | Tool chuck |
| CN2863325Y (en) * | 2006-01-05 | 2007-01-31 | 浙江三鸥机械股份有限公司 | Novel spanner drill chuck |
| CN201058380Y (en) * | 2007-04-27 | 2008-05-14 | 山西惠丰机械工业有限公司 | Drill chuck capable of preventing dust |
| CN202506860U (en) * | 2012-04-01 | 2012-10-31 | 威海达旺五金制品有限责任公司 | Drill chuck with lubricating device |
-
2012
- 2012-04-01 CN CN201210092895.7A patent/CN102649167B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3934891A (en) * | 1973-04-11 | 1976-01-27 | The Jacobs Manufacturing Co., Ltd. | Drill chuck and method of assembly |
| CN201291311Y (en) * | 2008-10-30 | 2009-08-19 | 于庆滋 | Self-tightening drill chuck |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102649167A (en) | 2012-08-29 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20190401 |
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| CF01 | Termination of patent right due to non-payment of annual fee |