CN201157916Y - Hand locking drill chuck and wrench drill clamping chuck - Google Patents
Hand locking drill chuck and wrench drill clamping chuck Download PDFInfo
- Publication number
- CN201157916Y CN201157916Y CNU2007201769153U CN200720176915U CN201157916Y CN 201157916 Y CN201157916 Y CN 201157916Y CN U2007201769153 U CNU2007201769153 U CN U2007201769153U CN 200720176915 U CN200720176915 U CN 200720176915U CN 201157916 Y CN201157916 Y CN 201157916Y
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- China
- Prior art keywords
- drill
- jaw
- drill body
- nut
- chuck
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- Expired - Fee Related
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Abstract
The utility model provides a novel keyless drill chuck which comprises a drill body. Five gripping jaws are uniformly distributed along the peripheral direction at the front end of the drill body and incline towards the central line of the drill body; the inclination angles of the gripping jaws are identical; gripping jaws are arranged in the gripping jaw holes and slide forth and back along the gripping jaw holes; an encircling drill body and a nut limited axially are arranged in the drill chuck; and the nut and the gripping jaws are in threaded connection. The utility model also provides a novel spanner drill chuck, which comprises a drill body. Five gripping jaws are uniformly distributed along the peripheral direction at the front end of the drill body and incline towards the central line of the drill body; the inclination angles of the gripping jaws are identical; gripping jaws are arranged in the gripping jaw holes and slide forth and back along the gripping jaw holes; an encircling drill body and a nut limited axially are arranged in the drill chuck; a front end face tooth ring is arranged in the drill chuck; and the nut and the gripping jaws are in threaded connection. The novel keyless drill chuck and the novel spanner drill chuck can obtain higher gripping precision and greatly increase gripping force.
Description
Technical field
The utility model relates to a kind of drill chuck, relates in particular to a kind of for example drill chuck on drilling machine, the electric drill of machining equipment and electric tool that is installed in.
Background technology
Hand fastening drill clutch is a clamping device, such as drill bit, the conventional mechanical devices of processing work, from reported in literature, as far back as 19th-century second half, just produced drill chuck, such as No. 173152 patents of the disclosed U.S. in 1876, it is disclosed to be exactly hand fastening drill clutch, therein, be provided with drill body, three jaws, nut, jaw is separately positioned in three tilting jaw holes that are distributed on the drill body, and nut is threaded with the jaw rear end, when rotating nut, jaw is advanced along the jaw hole or retreat, to clamp or the instrument that gets loose.Nearly a century and a half since hand fastening drill clutch is born, the technical staff is in order to improve gripping performance, the drill chuck internal structure is updated, such as having increased self-locking structure, reinforcement structure etc., disclosed patent is also many, but these improve the control aspect that mostly is confined to nut, and the jaw conduct is by the part that nut drove, and its setting has become the improved blind area of gripping performance.
The problems referred to above are present in spanner drill chuck equally, spanner drill chuck front end face at nut on the basis of hand fastening drill clutch transmission principle is provided with gear ring again, described drill body front end is provided with the locating hole that is connected of the instrument that cooperates with nut front end face gear ring, like this, after utilizing the hand operated drill chuck to clamp drill bit, can utilize cooperating of instrument and front end face gear ring, import bigger torsion, further clamp drill bit.From reported in literature, spanner drill chuck just occurs at the beginning of last century, and such as No. 1351347 patents of the disclosed U.S. of nineteen twenty, it is disclosed to be exactly the drill chuck of this structure.Since then, in a nearly century, the internal structure improvement that the technical staff carries out in order to improve gripping performance also mostly is confined to the control aspect to nut, is remained the improved blind area of gripping performance by the jaw that nut drove.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of novel hand fastening drill clutch that improves gripping performance.For this reason, the utility model is by the following technical solutions: it comprises drill body, the rear end of drill body is provided with the connecting hole that cooperates with motor shaft, the front portion of drill body is provided with centre bore, front end edge circumferencial direction at described drill body evenly is furnished with 5 jaw holes that tilt to the drill body center line, the angle of inclination in described jaw hole is identical, described jaw hole communicates with drill body front end centre bore, being provided with in the described jaw hole can be along the jaw of slip before and after the jaw hole, the rear end of jaw is provided with screw thread, described drill chuck is provided with around drill body, axial limited nut, described nut is threaded with jaw.
Another technical problem to be solved of the utility model provides a kind of novel spanner drill chuck that improves gripping performance.For this reason, the utility model is by the following technical solutions: it comprises drill body, the rear end of drill body is provided with the connecting hole that cooperates with motor shaft, the front end of drill body is provided with centre bore, front end edge circumferencial direction at described drill body also evenly is furnished with 5 jaw holes that tilt to the drill body center line, the angle of inclination in described jaw hole is identical, described jaw hole communicates with drill body front end centre bore, being provided with in the described jaw hole can be along the jaw of slip before and after the jaw hole, the rear end of jaw is provided with screw thread, described drill chuck is provided with around drill body, axial limited nut, described drill chuck also is provided with the front end face gear ring, described nut is threaded with jaw, and described drill body front end is provided with the locating hole that is connected of the instrument that cooperates with the front end face gear ring.
Above-mentioned two technical schemes that the utility model adopted can both obtain following technique effect: can obtain higher clamping precision, bigger increase chucking power.
Description of drawings
Fig. 1 is the half sectional view of the utility model embodiment 1, and the main internal structure and the profile of drill chuck is shown.
Fig. 2 is the explosive view of embodiment 1.
Fig. 3 is A-A place among Fig. 1, and the cutaway view when contracting back clamping cylindrical handle instrument behind the jaw illustrates the state of jaw clamping device.
Fig. 4 is the half sectional view of the utility model embodiment 2, and the main internal structure and the profile of drill chuck is shown.
Fig. 5 is the explosive view of embodiment 2.
Fig. 6 is the half sectional view of the utility model embodiment 3, and the main internal structure and the profile of drill chuck is shown.
Fig. 7 is the explosive view of embodiment 3.
Fig. 8 is the half sectional view of the utility model embodiment 4, and the main internal structure and the profile of drill chuck is shown.
Fig. 9 is the B-B cutaway view of embodiment 4 under the non-locking state.
Figure 10 is the explosive view of embodiment 4.
Figure 11 is the stereogram of embodiment 4 nuts.
Figure 12 is the stereogram of embodiment 4 adapter ring bodies.
Figure 13 is the stereogram of embodiment 4 forward annular bodies.
Figure 14 is the stereogram of embodiment 4 rotary sleeves.
The specific embodiment
What embodiment 1 present embodiment was provided is the hand fastening drill clutch embodiment.
With reference to accompanying drawing 1-3.It comprises drill body 1, the rear end of drill body is provided with the connecting hole 11 that cooperates with motor shaft, the front end of drill body is provided with centre bore 12, front end edge circumferencial direction at described drill body evenly is furnished with 5 jaw holes 13 that tilt to drill body center line 10, the angle of inclination in described jaw hole is identical, described jaw hole communicates with drill body front end centre bore, being provided with in the described jaw hole can be along the jaw 4 of slip before and after the jaw hole, the rear end of jaw is provided with screw thread 42, described drill chuck is provided with around drill body, axial limited nut 3, and described nut is threaded with jaw.
Described hand fastening drill clutch is provided with the overcoat 2 that is connected the rotation of drive nut with nut, described overcoat is connected with the nut interference fit or keyway is connected, operator's rotating jacket can drive nut and rotate, thereby jaw is advanced along the jaw hole or retreats, to clamp or the instrument that gets loose.
In the drawings, drawing reference numeral 41 is a jaw clamping seamed edge, and drawing reference numeral 5 is a ball, and drawing reference numeral 6 is the back cover of drill body motion relatively.
Fig. 3 has shown the state when contracting back clamping cylindrical handle 91 instruments behind the jaw,
What embodiment 2 present embodiments were provided is the spanner drill chuck embodiment.
With reference to accompanying drawing 4,5.It comprises drill body 110, the rear end of drill body is provided with the connecting hole 111 that cooperates with motor shaft, the front end of drill body is provided with centre bore 112, front end edge circumferencial direction at described drill body also evenly is furnished with 5 jaw holes 113 that tilt to drill body center line 100, the angle of inclination in described jaw hole is identical, described jaw hole communicates with drill body front end centre bore, being provided with in the described jaw hole can be along the jaw 140 of slip before and after the jaw hole, the rear end of jaw is provided with screw thread 142, described drill chuck is provided with around drill body, axial limited nut 130, described drill chuck also is provided with front end face gear ring 131, described nut is threaded with jaw, and what described drill body front end was provided with the instrument that cooperates with nut front end face gear ring is connected locating hole 114.
Described spanner drill chuck is provided with to be connected with nut and drives the shell 120 that nut rotates, and described shell is connected with the nut interference fit, and operator's rotation case can drive the nut rotation, thereby jaw is advanced along the jaw hole or retreats, with the clamping or the instrument that gets loose.
Described front end face gear ring is formed in the front end face of nut.In the drawings, drawing reference numeral 141 is a jaw clamping seamed edge.
What embodiment 3 present embodiments were provided is the spanner drill chuck embodiment.
With reference to accompanying drawing 6,7.Present embodiment is basic identical with embodiment 2, and just its shell has the front end outside being exposed to, and described front end face gear ring 131 is formed in the front end face of shell.
In Fig. 6 and 7, the drawing reference numeral representative identical implication identical with Figure 4 and 5.
What embodiment 4 present embodiments were provided is the self-locking type clamping head of hand-locking drill embodiment.
With reference to accompanying drawing 8-14.It comprises drill body 410, the rear end of drill body is provided with the connecting hole 411 that cooperates with motor shaft, the front end of drill body is provided with centre bore 412, front end edge circumferencial direction at described drill body evenly is furnished with 5 jaw holes 413 that tilt to drill body center line 400, the angle of inclination in described jaw hole is identical, described jaw hole communicates with drill body front end centre bore, being provided with in the described jaw hole can be along the jaw 440 of slip before and after the jaw hole, the rear end of jaw is provided with screw thread 442, described drill chuck is provided with around drill body, axial limited nut 430, and described nut is threaded with jaw.
In the drawings, drawing reference numeral 441 is a jaw clamping seamed edge.
With reference to accompanying drawing.Present embodiment also comprises the rotary sleeve 420 of axial location, described drill chuck also is provided with in the place ahead of nut around the drill body and the forward annular body 470 that can not rotate with respect to drill body, the rear end face of described forward annular body is provided with teeth groove 471, described drill chuck also is provided with rotary sleeve and connects and the adapter ring body 450 of rotation and the slip of energy front and back, described adapter ring body is between nut and the forward annular body, the front end face of described adapter ring body is provided with the tooth 452 that cooperates with forward annular body teeth groove, the front end face of described nut is provided with the tooth of control adapter ring body and forward annular body teeth groove is thrown off and the configuration and the transition face between configuration 431 of engagement, described adapter ring body is connected with nut and rotates relative to nut between the configuration of disengagement and engagement, and described drill chuck is provided with the flexible member 461 of adapter ring body to the extruding of nut direction.
Described is spring with the adapter ring body to the flexible member 461 of nut direction extruding, and it mediates between annular solid and the forward annular body.
The groove 433 and 434 that is configured as being in nut front end face differing heights that the tooth of described control adapter ring body and forward annular body teeth groove are thrown off and meshed.As shown in the figure, groove 433 after, groove 434 is preceding, the tooth of groove 433 control adapter ring bodies is thrown off with forward annular body teeth groove, the tooth and the forward annular body teeth groove of groove 434 control adapter ring bodies mesh.
Described adapter ring body is provided with the ridge 454 with described groove fit.
The tooth of described control adapter ring body and forward annular body teeth groove are thrown off and the configuration of engagement also can adopt the profile that is in nut front end face differing heights, such as the front boss terrace and the back concave surface of nut front end.
Described adapter ring body and nut can be by key and groove the multiple means such as cooperation of cooperation, projection and groove be connected.
Described rotary sleeve and adapter ring body 450 cooperate by keyway and are connected, make adapter ring body 450 can with rotary sleeve rotate and can before and after slide.Drawing reference numeral 421 is the key of rotary sleeve inwall, and 453 of drawing reference numeral are the groove that cooperates with key 421.
The front end of described nut is provided with key 432, described adapter ring body is provided with the transposition groove 451 that cooperates with described key, described forward annular body can be installed in outside the drill body slidingly back and forth, described drill chuck is provided with the flexible member 462 of forward annular body to the extruding of adapter ring body direction, and flexible member adopts spring.Like this, can increase the clamping force of drill chuck to instrument.
Described forward annular body is connected by key 493 with drill body, and the forward annular body is provided with the chute 472 that cooperates with key, thereby makes the forward annular body not rotate again and can slide front and back with respect to drill body.
It is example that this practicality example adopts the bivalve hand fastening drill clutch, and drawing reference numeral 480 is the back cover of drill body activity relatively.Drawing reference numeral 490 is the protecgulum of drill chuck, and it is positioned at by collar 491 on the step of drill body front end, and spring 462 is between protecgulum 490 and the forward annular body 470.Drawing reference numeral 436 is a nut sleeve, and drawing reference numeral 492 is the circle ball between the drill body of nut and rear nut.
During clamping tool, front end from drill chuck, rotary sleeve is to clockwise rotate, in the incipient stage, ridge 454 is in the groove 433, and the tooth of adapter ring body and forward annular body teeth groove are thrown off, clockwise rotate rotary sleeve, rotary sleeve drives the rotation of adapter ring body, and by cooperating of groove 433 and ridge 454, nut is made the jaw clamping tool by drive;
After jaw is clamped instrument, be rotated further rotary sleeve, this moment, nut suspended rotation, ridge 454 enters in the groove 434 through transition face 431, one sidewall and the key 432 of transposition groove 451 are collided, and at this moment, the adapter ring body is made the tooth and the engagement of forward annular body teeth groove of adapter ring body to sinciput, at this moment, drill chuck is in the self-locking locking state, is rotated further rotary sleeve, and the adapter ring body rotates synchronously, the forward annular body is the front and back play under the effect of spring, tooth 452 slips on teeth groove 471 surfaces, and simultaneously, key 432 is driven by the sidewall of transposition groove 451, nut is rotated further, thus clamping tool more tightly.When entering duty when stopping operating, even drill chuck is subjected to shock loading, because the tooth and the forward annular body teeth groove engagement fit of adapter ring body, drill body is not loosening relatively for nut, and jaw keeps the clamped condition to instrument.
In the time will taking out instrument, rotate counterclockwise rotary sleeve, the adapter ring body goes to another sidewall and the key 432 of transposition groove 451 and collides, ridge 454 enters in the groove 433 through transition face 431, tooth and teeth groove are thrown off, the self-locking locking state is disengaged, and is rotated further rotary sleeve, just can unclamp jaw and take out instrument.
Claims (6)
1, a kind of novel hand fastening drill clutch, it is characterized in that it comprises drill body, the rear end of drill body is provided with the connecting hole that cooperates with motor shaft, the front end of drill body is provided with centre bore, front end edge circumferencial direction at described drill body evenly is furnished with 5 jaw holes that tilt to the drill body center line, the angle of inclination in described jaw hole is identical, described jaw hole communicates with drill body front end centre bore, being provided with in the described jaw hole can be along the jaw of slip before and after the jaw hole, the rear end of jaw is provided with screw thread, described drill chuck is provided with around drill body, axial limited nut, described nut is threaded with jaw.
2, a kind of novel hand fastening drill clutch as claimed in claim 1 is characterized in that it is provided with the overcoat that is connected the rotation of drive nut with nut.
3, a kind of novel spanner drill chuck, it is characterized in that it comprises drill body, the rear end of drill body is provided with the connecting hole that cooperates with motor shaft, the front end of drill body is provided with centre bore, front end edge circumferencial direction at described drill body also evenly is furnished with 5 jaw holes that tilt to the drill body center line, the angle of inclination in described jaw hole is identical, described jaw hole communicates with drill body front end centre bore, being provided with in the described jaw hole can be along the jaw of slip before and after the jaw hole, the rear end of jaw is provided with screw thread, described drill chuck is provided with around drill body, axial limited nut, described drill chuck also is provided with the front end face gear ring, described nut is threaded with jaw, and described drill body front end is provided with the locating hole that is connected of the instrument that cooperates with the front end face gear ring.
4, a kind of novel spanner drill chuck as claimed in claim 3 is characterized in that it is provided with the shell that is connected the rotation of drive nut with nut.
5, as claim 3 or 4 described a kind of novel spanner drill chucks, it is characterized in that described front end face gear ring is formed in the front end face of nut.
6, a kind of novel spanner drill chuck as claimed in claim 4 is characterized in that described front end face gear ring is formed in the front end face of shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201769153U CN201157916Y (en) | 2007-05-30 | 2007-09-21 | Hand locking drill chuck and wrench drill clamping chuck |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200720109839 | 2007-05-30 | ||
| CN200720109839.4 | 2007-05-30 | ||
| CNU2007201769153U CN201157916Y (en) | 2007-05-30 | 2007-09-21 | Hand locking drill chuck and wrench drill clamping chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201157916Y true CN201157916Y (en) | 2008-12-03 |
Family
ID=40108505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201769153U Expired - Fee Related CN201157916Y (en) | 2007-05-30 | 2007-09-21 | Hand locking drill chuck and wrench drill clamping chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201157916Y (en) |
-
2007
- 2007-09-21 CN CNU2007201769153U patent/CN201157916Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081203 Termination date: 20091021 |