CN202506860U - Drill chuck with lubricating device - Google Patents

Drill chuck with lubricating device Download PDF

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Publication number
CN202506860U
CN202506860U CN2012201343128U CN201220134312U CN202506860U CN 202506860 U CN202506860 U CN 202506860U CN 2012201343128 U CN2012201343128 U CN 2012201343128U CN 201220134312 U CN201220134312 U CN 201220134312U CN 202506860 U CN202506860 U CN 202506860U
Authority
CN
China
Prior art keywords
drill chuck
jaw
hole
lubricating
nut
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
Application number
CN2012201343128U
Other languages
Chinese (zh)
Inventor
柳尧亭
于庆滋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DAWANG HARDWARE PRODUCTS (WEIHAI) Co Ltd
Original Assignee
DAWANG HARDWARE PRODUCTS (WEIHAI) Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DAWANG HARDWARE PRODUCTS (WEIHAI) Co Ltd filed Critical DAWANG HARDWARE PRODUCTS (WEIHAI) Co Ltd
Priority to CN2012201343128U priority Critical patent/CN202506860U/en
Application granted granted Critical
Publication of CN202506860U publication Critical patent/CN202506860U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a drill chuck with a lubricating device. The problems of the original drill chuck that the flexible time and the service life are both short are solved by the drill chuck with the lubricating device. The drill chuck with the lubricating device is provided with a push screw rod, a host machine connecting hole, a push nut, a clamping jaw and a drill chuck main body, wherein the push screw rod is in threaded connection with the push nut; the push nut is connected with the clamping jaw; a clamping jaw hole is formed in the drill chuck main body; the clamping jaw is located in the clamping jaw hole; a clamping jaw lubricating device is arranged on the drill chuck main body; and the clamping jaw lubricating device is communicated with the clamping jaw hole. The drill chuck with the lubricating device can be widely applied to the field of machining.

Description

Drill chuck with lubricating arrangement
Technical field
The utility model relates to the anchor clamps of a kind of machining with cutter, especially relates to a kind of drill chuck with lubricating arrangement.
Background technology
Often use operations such as instruments such as lathe, electric drill are holed, milling in the production and processing activity; Be installed in the drill chuck that is used for cutters such as clamping drilling bit, milling cutter on these Device Host working shafts and experienced long-term application and improvement, but still have many deficiencies.
For example, Granted publication number be CN 201291311Y 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; Driving drill chuck body 33 relatively rotates with the promotion screw mandrel 30 that is connected on the equipment working shaft; Promote nut 31 along with shell 32 and synchronous together the doing with promotion screw mandrel 30 of drill chuck body 33 relatively rotate so force, promote nut 31 and under the effect of the screw thread that promotes screw mandrel 30, move down, drive three jaws 34 and move down along the jaw hole; Space between three jaw 34 lower ends also dwindles thereupon, thereby clamps the cutter of required clamping.This moment the starting device motor, drill chuck will drive its work by clamp-on tool, thereby accomplishes process.
The subject matter that this drill chuck exists is: in the process that moves up and down of jaw, because certain lubricating arranged when new product is assembled between jaw and the drill chuck body, no matter be to clamp perhaps to unclamp; Drill chuck all compares flexibly; But along with the drill chuck growth of service time, the lubricating grease between jaw and the drill chuck body is fewer and feweri, and frictional force between the two is increasing; So just make the flexibility of whole drill chuck reduce; Time grown will make between jaw and the drill chuck body cooperate not enough, thereby the chucking power of jaw is produced 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 reduced the service life of drill chuck greatly.
Summary of the invention
The utility model is the problem short to the above-mentioned drill chuck flexibility time, that the life-span is short, and a kind of flexibility, long drill chuck with lubricating arrangement of life-span of keeping for a long time is provided.
For this reason; The utility model is provided with and promotes screw mandrel, main frame connecting hole, promotes nut, jaw, drill chuck body, promotes screw mandrel and is threaded with promoting to adopt between the nut, and the promotion nut is connected with jaw; The drill chuck body is provided with the jaw hole; Jaw is positioned at the jaw hole, and the drill chuck body is provided with the jaw lubricating arrangement, and it is connected with the jaw hole.
The utility model optimized technical scheme is that the jaw lubricating arrangement is a cannelure.
Another optimized technical scheme of the utility model is that the jaw lubricating arrangement is poroid.
The utility model is owing to be provided with cannelure in the lower end of drill chuck body; It is connected with the jaw hole, be provided with lubricating grease in the cannelure, thereby jaw is in the process of moving up and down; Can switch to the lubricating grease in the cannelure; Frictional force between whole jaw and the drill chuck body is reduced, prolonged the time of the flexibility of jaw, and then prolonged the service life of drill chuck.
Description of drawings
Fig. 1 is the structural representation of the utility model background technology;
Fig. 2 is the overall structure sketch map of the utility model;
Fig. 3 is the STRUCTURE DECOMPOSITION sketch map of the utility model;
Fig. 4 A, Fig. 4 B and Fig. 4 C are the clamping jaw structure sketch mapes of the utility model.
Symbol description among the figure:
1. promotion screw mandrel; 2. main frame connecting hole; 3. promotion nut; 4.T type groove; 5. jaw; 6. connecting hole; 7. jaw hole; 8. ball hole; 9. fixed cover; 10. cutter hole; 11. drill chuck body; 12. place kick; 13. dome-type groove; 14. cannelure; 15. rectangular channel; 16. cut off; 30. promotion screw mandrel; 31. promotion nut; 32. shell; 33. drill chuck body; 34. jaw; 35.V type acrosome.
The specific embodiment
As shown in Figures 2 and 3; Drill chuck body 11 is oblique to be processed with three symmetrically and to run through jaw hole 7 up and down; Upper end and 7 corresponding positions, three jaw holes at drill chuck body 11 are provided with three ball holes 8, and the axis of lower end edge drill chuck body 11 is processed with the cutter hole 10 that is suitable for cutter assembling external diameter greater than maximum, and the upper end that promotes screw mandrel 1 is processed with and assembles the main frame connecting hole 2 that the power transmission shaft of the Device Host of this keyless drill chuck is complementary; The upper end edge axis of drill chuck body 11 is processed with and promotes the connecting hole 6 of screw mandrel 1 lower end external diameter coupling; The lower end that promotes screw mandrel 1 is movably set in the connecting hole 6, is provided with between connecting hole 6 and the cutter hole 10 to cut off 16, thereby both are not communicated; After putting into, cutter can directly not withstand on the promotion screw mandrel 1, in order to avoid cause damage promoting screw mandrel 1.
Be processed with cannelure 14 in the lower end of drill chuck body 11, this cannelure 14 can be for continuous, also can with jaw 5 corresponding settings, and show as unconnected state, its shape can be poroid etc. for circular hole, square poroid or triangle; Cannelure 14 is connected with jaw hole 7; Envelope has lubricating grease in the cannelure 14; Guarantee 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; Promote nut 3 was processed with and promoted screw mandrel 4 outer surface threads coupling along the axis internal thread; Promoting nut 3 is rotatably connected on the promotion screw mandrel 1; The lower end, outer that promotes nut 3 is provided with the T shape plush copper of mating with T shape groove 4 with corresponding position, three jaw 5 upper ends along the upper end that diametric(al) is processed with 4, three jaws 5 of T shape groove of three openings, and T shape plush copper is sheathed in the corresponding T shape groove 4.
Three jaws 5 are slidingly installed in respectively in the jaw hole 7, shown in Fig. 4 A, Fig. 4 B and Fig. 4 C, jaw 5 its with promote the position that nut 3 is connected and be provided with two rectangular channels 15; On jaw 5, begin to be processed with deep-slotted chip breaker 13 from the upper end, this deep-slotted chip breaker 13 is preferably hemispherical, and its diameter is identical with the diameter in ball hole 8; To put into ball hole 8 with the identical place kick 12 of they two diameters, and make place kick 12 half the in the deep-slotted chip breaker 13 of jaw 5, half the in addition in the ball hole 8 of drill chuck body 11; Again fixed cover 9 is put into ball hole 8; Place kick 12 is positioned, and this place kick is preferably steel ball, also can adopt the spheroid of other materials that meet the demands.
In the process that jaw 5 moves up and down; Place kick 12 can be played jaw is carried out spacing effect, makes it and can not swing, and give certain lubricating; Place kick 12 is rolled in the process that moves up and down of jaw 5 back and forth; Make the friction between itself and the jaw 5 become rolling friction, frictional force reduces greatly, has improved the flexibility that jaw 5 moves up and down.
Head at jaw 5; Both sides along dome-type groove 13 are processed with a rectangular channel 15 respectively; Distance between two rectangular channels 15 is identical with the distance of T type groove lower ending opening, put into the T type groove 4 that promotes nut 3 in the T of jaw 5 type plush copper after, jaw 5 can not radially wobble; Thereby accomplished the location of jaw 5 better, made the precision of drill chuck improve greatly.
Explain in the face of the course of work of the utility model down:
Cutter is inserted in the cutter hole 10; Rotate promotion screw mandrel 1 with hand; Because three jaws 5 are sheathed in the jaw hole 7, the upper end of three jaws 5 is sheathed on respectively and promotes in three corresponding T shape grooves 4 that nut 3 is provided with, and the rotation that therefore promotes screw mandrel 1 forces and promotes nut 3 and promote screw mandrel 1 and do and relatively rotate; Promoting nut 3 moves down under the effect of the screw thread that promotes screw mandrel 4; Drive three jaws 5 and move down along jaw hole 7, the space between three jaw 5 lower ends also dwindles thereupon, puts into the cutter in cutter hole 10 until clamping.
This moment, the starting device motor promoted screw mandrel 1 rotation at a high speed under the drive of working shaft, because drill chuck body 11 and the static action of inertia that promotes nut 3; There is stronger impulsive force to play rotation in the starting stage that promotes screw mandrel 1 startup to force drill chuck body 11 to follow one of which with promotion nut 3; This impulsive force further makes three jaw 5 clamp-on tools, and the reaction force between cutter and the workpiece afterwards also relatively rotates forcing drill chuck body 11 and promote to do between nut 3 and the promotion screw mandrel 1; This has increased the chucking power of 5 pairs of cutters of three jaws equally automatically; Thereby possessed the function of self-tightening, make whole keyless drill chuck have very high precision and stability, along with the rotation of motor; Jaw 5 steps up cutter and rotates gradually together, thereby accomplishes mechanical processing process.
In to the not high part processing of required precision, can only on jaw 5, be provided with deep-slotted chip breaker 13, perhaps a rectangular channel 15 with jaw 5 tops changes original cannelure into, satisfies some basic processing needs.In addition, ball hole 8 is laterally got through on drill chuck body 11, also can be obliquely to get through perpendicular to jaw 5, and half is in the ball hole 8 to make place kick 12, and half is in this spherical groove 13, accomplishes the location of jaw 5.

Claims (3)

1. drill chuck with lubricating arrangement; It is provided with and promotes screw mandrel, main frame connecting hole, promotes nut, jaw, drill chuck body, promotes screw mandrel and is threaded with promoting to adopt between the nut, and the promotion nut is connected with jaw; The drill chuck body is provided with the jaw hole; Jaw is positioned at the jaw hole, it is characterized in that said drill chuck body is provided with the jaw lubricating arrangement, and it is connected with said jaw hole.
2. the drill chuck with lubricating arrangement according to claim 1 is characterized in that said jaw lubricating arrangement is a cannelure.
3. the drill chuck with lubricating arrangement according to claim 1 is characterized in that said jaw lubricating arrangement is poroid.
CN2012201343128U 2012-04-01 2012-04-01 Drill chuck with lubricating device Expired - Fee Related CN202506860U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012201343128U CN202506860U (en) 2012-04-01 2012-04-01 Drill chuck with lubricating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012201343128U CN202506860U (en) 2012-04-01 2012-04-01 Drill chuck with lubricating device

Publications (1)

Publication Number Publication Date
CN202506860U true CN202506860U (en) 2012-10-31

Family

ID=47059366

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012201343128U Expired - Fee Related CN202506860U (en) 2012-04-01 2012-04-01 Drill chuck with lubricating device

Country Status (1)

Country Link
CN (1) CN202506860U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102649167A (en) * 2012-04-01 2012-08-29 威海达旺五金制品有限责任公司 Drill chuck with lubricating device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102649167A (en) * 2012-04-01 2012-08-29 威海达旺五金制品有限责任公司 Drill chuck with lubricating device

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121031

Termination date: 20180401

CF01 Termination of patent right due to non-payment of annual fee