CN201815692U - Drill chuck - Google Patents
Drill chuck Download PDFInfo
- Publication number
- CN201815692U CN201815692U CN201020537581XU CN201020537581U CN201815692U CN 201815692 U CN201815692 U CN 201815692U CN 201020537581X U CN201020537581X U CN 201020537581XU CN 201020537581 U CN201020537581 U CN 201020537581U CN 201815692 U CN201815692 U CN 201815692U
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- CN
- China
- Prior art keywords
- torsion spring
- drill chuck
- drill
- positioning sleeve
- installed part
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- 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 drill chuck, belonging to the technical field of machinery, and aiming at solving the technical problems that the existing drill chuck is complex in structure, inconvenient in connection, unstable in connection, higher in cost and the like. The drill chuck comprises a drill body, wherein one end of the drill body is provided with a clamping jaw for clamping a drill head, the other end of the drill body is provided with an installing piece, the installing piece is provided with a connecting hole for the plugging of an output end of an electrical machine, the side wall of the installing piece is further provided with a plurality of pin holes and a plurality of positioning holes, a plurality of positioning pins penetrate the pin holes, the positioning holes are internally provided with a plurality of steel balls, a positioning sleeve is detachably fixed outside the installing piece, the positioning sleeve is further externally sheathed with a control sleeve, a torsion spring is arranged between the positioning sleeve and the control sleeve, one end of the torsion spring is acted on the positioning sleeve, the other end of the torsion spring is acted on the control sleeve, and the control sleeve is further internally provided with a loosening groove and a positioning groove. The drill chuck has the advantages of being simple in structure, fast in connection, lower in cost, stable in connection and the like.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of drill chuck, the drill chuck that particularly a kind of energy is quick and motor output shaft is installed.
Background technology
At present, the drill chuck of the various drilling tools on the market generally is made up of drill body, jaw, screw, bearing, bearing gasket, protheca, back cover, protheca door or protheca jump ring etc.Drill body and bearing gasket, back cover, protheca door interference fit joint, three jaws are installed in respectively in three inclined holes of drill body, screw is installed in the screw groove of drill body, its with jaw on threaded engagement formation thread transmission.Screw outside interference fit joint one nut sleeve, the nut sleeve outside is provided with protheca, in the strong groove of inserting on people's nut sleeve that the protheca inwall is provided with, nut sleeve and protheca is linked together.The front end interference fit joint one protheca door of drill body, or connect a jump ring. prevent that the protheca string is moving.During use, hand is twisted protheca, can drive screw and rotate, and by the screw thread transmission, three jaws of drill chuck are advanced in the inclined hole of drill body or retreats, thereby three jaws are opened or closed, reaches to unclamp or clamp drill bit rhythm purpose.Said structure, drill body and back cover interference fit joint.Overexert in use or access times when too much.Very easily make drill body loosening, produce skidding with the back cover.Drill body front end interference fit joint one protheca door, not quick detachable, bring difficulty to maintenance.The drill body front end connects a jump ring, and jump ring is exposed influences the attractive in appearance of drill chuck.The rear portion of drill body is provided with the connecting hole that cooperates with motor shaft, and general employing of motor shaft and connecting hole is threaded, therefore, in that drill chuck is installed to the motor shaft operation not too convenient, need to consume the suitable time.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed the drill chuck that a kind of energy is quick and motor output shaft is installed.
The purpose of this utility model can realize by following technical proposal: a kind of drill chuck, comprise drill body, end at drill body is provided with the jaw that is used for clamping drilling bit, it is characterized in that, the other end at drill body is provided with installed part, offer the connecting hole of the motor output shaft that is used to peg graft on the described installed part, also be provided with several pin-and-holes and several locating holes on the sidewall of described installed part, in pin-and-hole, be equipped with alignment pin, in locating hole, be provided with steel ball, outside installed part, be removably fixed with positioning sleeve, outside positioning sleeve, also be arranged with the control cover, between positioning sleeve and control cover, be provided with torsion spring, described torsion spring one end acts on the positioning sleeve, and the other end acts on control and puts, and also offers in the described control cover and unclamps groove and locating slot, the described diameter that unclamps the groove depth of groove greater than steel ball, the groove depth of described locating slot is less than the diameter of steel ball.
The jaw of drill body one end of this drill chuck is used for clamping drill bit, the installed part of the other end of drill body is used for installing motor output shaft, the work of motor just can drive the rotation of this drill chuck like this, drives the rotation of drill bit again, thereby realizes the work such as boring of drill bit.With offer link slot and stopper slot on the motor output shaft that this drill chuck cooperates, when needs cooperate this drill chuck with motor output shaft, rotating the control cover makes steel ball fall into the groove that unclamps of control cover, owing to unclamp the groove depth of groove greater than steel ball, therefore, at this moment, motor output shaft can be inserted in the installed part of this drill chuck smoothly, alignment pin falls into the link slot of motor output shaft, form and transmit the torsion cooperation, let go then and control return under the effect that is enclosed within torsion spring, under the effect of controlled cover inner surface, steel ball enters into the locating slot of control cover, because the groove depth of locating slot is less than steel ball, at this moment, steel ball partly drops on outside the locating slot, the other part of steel ball drops in the stopper slot of motor output shaft, thereby finishes the fitting operation of this drill chuck quickly and easily.When need with drill chuck when motor output shaft is dismantled, backward rotation control cover falls into the groove that unclamps of control cover until steel ball, when extracting drill chuck, control is enclosed within the effect of torsion spring, make steel ball fall into the locating slot of control cover, thereby make that this drill chuck is dismantled from motor output shaft quickly and easily.
In above-mentioned drill chuck, described installed part top also is provided with and prevents to control the fixture that cover moves up.
In above-mentioned drill chuck, described fixture is a jump ring, and the external diameter of described jump ring is slightly larger than the external diameter of control cover.
In above-mentioned drill chuck, offer groove on the described installed part, above-mentioned jump ring is connected in this groove.
In above-mentioned drill chuck, described positioning sleeve is fixed on outside the installed part by the mode of interference fit.
In above-mentioned drill chuck, offer torsion spring fixing hole one on the described positioning sleeve, described control puts and offers torsion spring fixing hole two, and above-mentioned torsion spring upper end is arranged in the torsion spring fixing hole one, and described torsion spring lower end is arranged in the torsion spring fixing hole two.
Compared with prior art, this drill chuck has that motor output shaft connects fast and the advantage of dismounting, and simultaneously, syndeton is simple, and is easy and simple to handle, cost is lower.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a structure explosive view of the present utility model.
Fig. 3 is the cutaway view of Fig. 1 along A-A.
Among the figure, 1, drill body; 2, jaw; 3, installed part; 31, connecting hole; 32, pin-and-hole; 33, locating hole; 34, groove; 4, alignment pin; 5, steel ball; 6, positioning sleeve; 61, the torsion spring fixing hole one; 7, control cover; 71, unclamp groove; 72, locating slot; 73, the torsion spring fixing hole two; 8, torsion spring; 9, jump ring; 10, motor output shaft; 101, link slot; 102, stopper slot.
The specific embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As Fig. 1, Fig. 2 and shown in Figure 3, this drill chuck comprises drill body 1, is provided with the jaw 2 that is used for clamping drilling bit at an end of drill body 1, is provided with installed part 3 at the other end of drill body 1.
On installed part 3, offer the connecting hole 31 of the motor output shaft 10 that is used to peg graft, also be provided with several pin-and-hole 32 and several locating holes 33 on the sidewall of installed part 3, in pin-and-hole 32, be equipped with alignment pin 4, in locating hole 33, be provided with steel ball 5, outside installed part 3, be removably fixed with positioning sleeve 6, concrete, it is outer that positioning sleeve 6 is that the mode by interference fit is fixed on installed part 3.
Also offer groove 34 on installed part 3, be provided with a jump ring 9 in groove 34, the external diameter of this jump ring 9 overlaps 7 external diameter greater than control, and controls the bottom that cover 7 is in this jump ring 9, and the lower end of control cover 7 leans on drill body 1.
Between positioning sleeve 6 and control cover 7, be provided with torsion spring 8, torsion spring 8 one ends act on the positioning sleeve 6, the other end acts on the control cover 7, concrete, on positioning sleeve 6, offer torsion spring 8 fixing holes 1, offer torsion spring 8 fixing holes 2 73 on the described control cover 7, torsion spring 8 upper ends are arranged in torsion spring 8 fixing holes 1, and described torsion spring 8 lower ends are arranged in torsion spring 8 fixing holes 2 73.
The jaw 2 of drill body 1 one ends of this drill chuck is used for clamping drill bit, the installed part 3 of the other end of drill body 1 is used for installing motor output shaft 10, the work of motor just can drive the rotation of this drill chuck like this, drives the rotation of drill bit again, thereby realizes the work such as boring of drill bit.Offer link slot 101 and stopper slot 102 on the motor output shaft 10 that cooperates with this drill chuck, when needs cooperate this drill chuck with motor output shaft 10, that rotates that control cover 7 makes that steel ball 5 falls into control cover 7 unclamps groove 71, owing to unclamp the groove depth of groove 71 greater than steel ball 5, therefore, at this moment, motor output shaft 10 can be inserted in the installed part 3 of this drill chuck smoothly, alignment pin 4 falls into the link slot 101 of motor output shaft 10, form and transmit the torsion cooperation, let go then and control cover 7 return under the effect of torsion spring 8, under the effect of controlled cover 7 inner surfaces, steel ball 5 enters into the locating slot 72 of control cover 7, because the groove depth of locating slot 72 is less than steel ball 5, at this moment, steel ball 5 parts drop on outside the locating slot 72, the other part of steel ball 5 drops in the stopper slot 102 of motor output shaft 10, thereby finishes the fitting operation of this drill chuck quickly and easily.When need with drill chuck when motor output shaft 10 is dismantled, backward rotation control cover 7 unclamps groove 71 until what steel ball 5 fell into control cover 7, when extracting drill chuck, control cover 7 is under the effect of torsion spring 8, make steel ball 5 fall into the locating slot 72 of control cover 7, thereby make that this drill chuck is dismantled from motor output shaft 10 quickly and easily.
In sum, can realize that this drill chuck and motor output shaft 10 is connected fast and dismantles, syndeton is simple, and is easy and simple to handle, cost is lower.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used 1, drill body morely; 2, jaw; 3, installed part; 31, connecting hole; 32, pin-and-hole; 33, locating hole; 34, groove; 4, alignment pin; 5, steel ball; 6, positioning sleeve; 61, the torsion spring fixing hole one; 7, control cover; 71, unclamp groove; 72, locating slot; 73, the torsion spring fixing hole two; 8, torsion spring; 9, jump ring; 10, motor output shaft; 101, link slot; 102, term such as stopper slot, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (6)
1. drill chuck, comprise drill body (1), end at drill body (1) is provided with the jaw (2) that is used for clamping drilling bit, it is characterized in that, the other end at drill body (1) is provided with installed part (3), offer the connecting hole (31) of motor output shaft (10) that are used to peg graft on the described installed part (3), also be provided with several pin-and-holes (32) and several locating holes (33) on the sidewall of described installed part (3), in pin-and-hole (32), be equipped with alignment pin (4), in locating hole (33), be provided with steel ball (5), outside installed part (3), be removably fixed with positioning sleeve (6), outside positioning sleeve (6), also be arranged with control cover (7), between positioning sleeve (6) and control cover (7), be provided with torsion spring (8), described torsion spring (8) one ends act on the positioning sleeve (6), the other end acts on the control cover (7), also offer in the described control cover (7) and unclamp groove (71) and locating slot (72), the described diameter that unclamps the groove depth of groove (71) greater than steel ball (5), the groove depth of described locating slot (72) is less than the diameter of steel ball (5).
2. drill chuck according to claim 1 is characterized in that, described installed part (3) top also is provided with the fixture that prevents that control cover (7) from moving up.
3. drill chuck according to claim 2 is characterized in that, described fixture is jump ring (9), and the external diameter of described jump ring (9) is slightly larger than the external diameter of control cover (7).
4. drill chuck according to claim 3 is characterized in that, offers groove (34) on the described installed part (3), and above-mentioned jump ring (9) is connected in this groove (34).
5. drill chuck according to claim 1 and 2 is characterized in that, described positioning sleeve (6) is fixed on outside the installed part (3) by the mode of interference fit.
6. drill chuck according to claim 1 and 2, it is characterized in that, offer torsion spring (8) fixing hole one (61) on the described positioning sleeve (6), offer torsion spring (8) fixing hole two (73) on the described control cover (7), above-mentioned torsion spring (8) upper end is arranged in torsion spring (8) fixing hole one (61), and described torsion spring (8) lower end is arranged in torsion spring (8) fixing hole two (73).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020537581XU CN201815692U (en) | 2010-09-20 | 2010-09-20 | Drill chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020537581XU CN201815692U (en) | 2010-09-20 | 2010-09-20 | Drill chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201815692U true CN201815692U (en) | 2011-05-04 |
Family
ID=43913663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020537581XU Expired - Fee Related CN201815692U (en) | 2010-09-20 | 2010-09-20 | Drill chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201815692U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114098890A (en) * | 2021-11-25 | 2022-03-01 | 海鹰企业集团有限责任公司 | Device for rapidly replacing drill bit |
| CN114259275A (en) * | 2021-11-26 | 2022-04-01 | 海鹰企业集团有限责任公司 | Drill bit device capable of stopping suddenly after drilling through skull |
-
2010
- 2010-09-20 CN CN201020537581XU patent/CN201815692U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114098890A (en) * | 2021-11-25 | 2022-03-01 | 海鹰企业集团有限责任公司 | Device for rapidly replacing drill bit |
| CN114259275A (en) * | 2021-11-26 | 2022-04-01 | 海鹰企业集团有限责任公司 | Drill bit device capable of stopping suddenly after drilling through skull |
| CN114259275B (en) * | 2021-11-26 | 2024-04-09 | 海鹰企业集团有限责任公司 | Drill bit device capable of stopping suddenly after drilling skull |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110504 Termination date: 20140920 |
|
| EXPY | Termination of patent right or utility model |