CN108971536A - Keyless drill chuck, the method for keyless drill chuck Double-directional rotary and drill kind tool - Google Patents
Keyless drill chuck, the method for keyless drill chuck Double-directional rotary and drill kind tool Download PDFInfo
- Publication number
- CN108971536A CN108971536A CN201810861861.7A CN201810861861A CN108971536A CN 108971536 A CN108971536 A CN 108971536A CN 201810861861 A CN201810861861 A CN 201810861861A CN 108971536 A CN108971536 A CN 108971536A
- Authority
- CN
- China
- Prior art keywords
- precursor
- clamping jaw
- drill chuck
- driving
- driving portion
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The present invention relates to machining equipment technology fields, more particularly, to a kind of keyless drill chuck, the method for keyless drill chuck Double-directional rotary and drill kind tool.The keyless drill chuck, including rear body, precursor and clamping jaw；Body can be rotated relative to precursor afterwards, and rear body is used to that clamping jaw to be driven to move along first direction, wherein, body includes driving portion and external connection portion afterwards, and driving portion is connected with external connection portion, and driving portion has helicitic texture, driving portion is by helicitic texture and clamping jaw screw-driven, so that clamping jaw is moved along first direction；Arrangement of clutch is provided between body and precursor afterwards, for body and precursor after engaging or disconnecting.The drill kind tool, including the keyless drill chuck.The present invention realizes keyless drill chuck Double-directional rotary by arrangement of clutch, drives drilling tool to carry out two-way operation, better user experience to realize.
Description
Technical field
The present invention relates to machining equipment technology fields, double more particularly, to a kind of keyless drill chuck, keyless drill chuck
To the method and drill kind tool of rotation.
Background technique
Keyless drill chuck currently on the market is merely able to drive drilling tool to work by the rotation in a direction, without
The rotation in another direction is able to achieve to drive drilling tool to work, this brings inconvenience to practical operation.
Summary of the invention
The purpose of the present invention is to provide a kind of keyless drill chuck, the method for keyless drill chuck Double-directional rotary and brill class works
Tool to solve keyless drill chuck existing in the prior art is merely able to that drilling tool is driven to carry out work by the rotation in a direction
Make, and can not achieve the rotation in another direction drive drilling tool work and keyless drill chuck clamp and unclamp bore
Operating procedure is complicated, time-consuming and laborious when tool, this brings inconvenient technical problem to practical operation.
The present invention provides a kind of keyless drill chucks, including rear body, precursor and clamping jaw；After described body can it is opposite with it is described
Precursor rotation, and it is described after body for driving the clamping jaw to move along first direction, wherein body includes driving portion and outer after described
Socket part, the driving portion are connected with the external connection portion, and the driving portion has helicitic texture, and the driving portion passes through the spiral shell
Line structure and the clamping jaw screw-driven, so that the clamping jaw is moved along first direction；
Be provided with arrangement of clutch between body and the precursor after described, for engage or disconnect it is described after body and it is described before
Body；
Relative to the precursor axial displacement can also occur for body after described, for making the first of the arrangement of clutch to be driven
Portion can engage or disconnect with the second driving section of the arrangement of clutch.
Further, clamping jaw slideway is offered on the precursor, the clamping jaw is arranged in the clamping jaw slideway, and described
Clamping jaw can be moved along the guide direction of the clamping jaw slideway；The first direction is equal with the guide direction of the clamping jaw slideway
Row.
Further, the first driving section of the arrangement of clutch is connected with the precursor, and the second of the arrangement of clutch
Driving section is connected with the rear body；When the precursor is by external axial force, first driving section can be with described
Two driving sections engage.
Further, the helicitic texture is the external screw thread that the front end of the driving portion is arranged in, the side of the clamping jaw
Face is provided with the internal screw thread matched with the external screw thread of the front end of the driving portion, and the driving portion and the external connection portion are detachable
Connection；
Or, the helicitic texture is the internal screw thread being arranged in the axial hole of the driving portion；The clamping jaw is installed on spiral shell
On the end face of the front end of bar, the screw rod is arranged in the axial hole of the driving portion, and the rear end of the screw rod has and institute
The external screw thread that the internal screw thread in the axial hole of driving portion matches is stated, the driving portion is detachably connected with the external connection portion.
It further, further include end cap, the end cap is fixed on the end face of the rear end of the precursor, after will be described
Body is limited in the axial accommodating hole of the precursor, and the rear body can generate axial position in the axial accommodating hole of the precursor
It moves.
Further, the axial accommodating hole of the precursor be stepped hole, and the stepped hole aperture it is big part it is close
The rear end of the precursor, the small rear end partially away from the precursor in the aperture of the stepped hole；Body is installed on described after described
In the big part in the aperture of stepped hole.
Further, the first elastic component is provided between the driving portion and the external connection portion.
Further, the end cap is connected with first driving section, the rear end of the rear body and second transmission
Portion is connected；
Or, the bottom hole of the big part in first driving section aperture that the stepped hole is arranged in, second driving section
The end face of the front end of the rear body is set.
The present invention also provides a kind of keyless drill chucks, including rear body, precursor and clamping jaw；Body can be opposite with institute after described
State precursor rotation, and it is described after body for driving the clamping jaw to move along first direction, wherein after described body include driving portion and
External connection portion, the driving portion are connected with the external connection portion, and the driving portion has helicitic texture, and the driving portion passes through described
Helicitic texture and the clamping jaw screw-driven, so that the clamping jaw is moved along first direction；After described between body and the precursor
It is provided with arrangement of clutch, for engaging or disconnecting the rear body and the precursor；Body can also be relative to the precursor after described
Axial displacement occurs, for enabling the first driving section of the arrangement of clutch to connect with the second driving section of the arrangement of clutch
It closes or disconnects；The material of body is plastics after the material of the precursor is plastics and/or is described.
The present invention also provides a kind of method of keyless drill chuck Double-directional rotary, the keyless drill chuck includes rear body, preceding
Body and clamping jaw, the rear body includes driving portion and external connection portion, and the driving portion is connected with the external connection portion, this method comprises:
In the driving portion, helicitic texture is set；The rear body is set to rotate relative to the precursor, so that the driving portion passes through
The helicitic texture and the clamping jaw screw-driven, wherein during screw-driven, the clamping jaw is moved along first direction；
Be provided with arrangement of clutch between body and the precursor after described, with engage or disconnect it is described after body and it is described before
Body, by enabling the rear body that axial displacement occurs relative to the precursor, so that the first driving section of the arrangement of clutch
It can engage or disconnect with the second driving section of the arrangement of clutch.
The present invention also provides a kind of drill kind tools, including the keyless drill chuck.
Compared with prior art, the invention has the benefit that
The present invention provides a kind of rear bodies of keyless drill chuck to rotate along a direction, and clamping jaw may be implemented and press from both sides to drilling tool
Tightly, then body rotates in another direction, and release of the clamping jaw to drilling tool may be implemented；It is being rotated by body after making along a direction, with
After realizing that clamping jaw is clamped drilling tool, conventional rotation may be implemented, that is, rotate forward, at this point, rear body together with precursor just
To rotation；In the case where clamping jaw clamps drilling tool, after body is engaged with precursor by arrangement of clutch after making, pass through arrangement of clutch reality
The opposing stationary state that is fixedly connected is kept after now between body and precursor, i.e., rear body still is able to turn in another direction together with precursor
It is dynamic, that is, it rotates backward, to realize keyless drill chuck Double-directional rotary by arrangement of clutch, drives drilling tool progress two-way to realize
Work, better user experience.
The present invention also provides a kind of methods of keyless drill chuck Double-directional rotary, realize self-tightening drill point by arrangement of clutch
Head Double-directional rotary drives drilling tool to carry out two-way operation, better user experience to realize.
The present invention also provides a kind of drill kind tools to be realized certainly including the keyless drill chuck by arrangement of clutch
Locking drill chuck Double-directional rotary drives drilling tool to carry out two-way operation, better user experience to realize.
Additional aspect and advantage of the invention will become obviously in following description section, or practice through the invention
Recognize.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the explosive view of keyless drill chuck provided by Embodiment 2 of the present invention；
Fig. 2 is the installation diagram of keyless drill chuck provided by Embodiment 2 of the present invention；
Fig. 3 is the structural schematic diagram of the upper shield of keyless drill chuck provided by Embodiment 2 of the present invention；
Fig. 4 is the structural schematic diagram at another visual angle of keyless drill chuck provided by Embodiment 2 of the present invention；
Fig. 5 is the axial sectional view of keyless drill chuck provided by Embodiment 2 of the present invention；
Fig. 6 is the axial sectional view of the keyless drill chuck for second of distressed structure that the embodiment of the present invention three provides；
Fig. 7 is the explosive view of the keyless drill chuck for second of distressed structure that the embodiment of the present invention three provides；
Fig. 8 is the explosive view of the keyless drill chuck for the third distressed structure that the embodiment of the present invention three provides；
Fig. 9 is the axial sectional view of the keyless drill chuck for the third distressed structure that the embodiment of the present invention three provides；
Figure 10 is the structural representation of the precursor of the keyless drill chuck for the 4th kind of distressed structure that the embodiment of the present invention four provides
Figure；
Figure 11 is that the structure of the driving portion of the keyless drill chuck for the 4th kind of distressed structure that the embodiment of the present invention four provides is shown
It is intended to；
Figure 12 is the axial sectional view of the keyless drill chuck for the 4th kind of distressed structure that the embodiment of the present invention four provides；
Figure 13 is the explosive view of the keyless drill chuck for the 4th kind of distressed structure that the embodiment of the present invention four provides；
Figure 14 is the external connection portion and driving portion of the keyless drill chuck for the 4th kind of distressed structure that the embodiment of the present invention four provides
Between exploded view；
Figure 15 is the external connection portion and driving portion of the keyless drill chuck for the 4th kind of distressed structure that the embodiment of the present invention four provides
Between installation diagram；(spline structure socket)
Figure 16 is the external connection portion and driving portion of the keyless drill chuck for the 4th kind of distressed structure that the embodiment of the present invention four provides
Between exploded view；
Figure 17 is the external connection portion and driving portion of the keyless drill chuck for the 4th kind of distressed structure that the embodiment of the present invention four provides
Between installation diagram；(spline structure socket)
Figure 18 is the external connection portion and driving portion of the keyless drill chuck for the 4th kind of distressed structure that the embodiment of the present invention four provides
Between exploded view；
Figure 19 is the external connection portion and driving portion of the keyless drill chuck for the 4th kind of distressed structure that the embodiment of the present invention four provides
Between installation diagram；(polygonal structure socket)
Figure 20 is the explosive view of the keyless drill chuck for the 5th kind of distressed structure that the embodiment of the present invention five provides；
Figure 21 is the axial sectional view of the keyless drill chuck for the 5th kind of distressed structure that the embodiment of the present invention five provides；
Figure 22 is the structure at another visual angle of the keyless drill chuck for the 5th kind of distressed structure that the embodiment of the present invention five provides
Schematic diagram；
Figure 23 is the knot of the clamping jaw mounting portion of the keyless drill chuck for the 5th kind of distressed structure that the embodiment of the present invention five provides
Structure schematic diagram；
Figure 24 is the knot of the rear body holding part of the keyless drill chuck for the 5th kind of distressed structure that the embodiment of the present invention five provides
Structure schematic diagram；
Figure 25 is the structural representation of the upper shield of the keyless drill chuck for the 5th kind of distressed structure that the embodiment of the present invention five provides
Figure；
Figure 26 is the axial sectional view of the keyless drill chuck for the 6th kind of distressed structure that the embodiment of the present invention six provides；
Figure 27 is the explosive view of the keyless drill chuck for the 6th kind of distressed structure that the embodiment of the present invention six provides；
Figure 28 is the explosive view of the keyless drill chuck for the 7th kind of distressed structure that the embodiment of the present invention six provides；
Figure 29 is the axial sectional view of the keyless drill chuck for the 7th kind of distressed structure that the embodiment of the present invention six provides；
Figure 30 is the external connection portion and driving portion of the keyless drill chuck for the 5th kind of distressed structure that the embodiment of the present invention five provides
Between exploded view；
Figure 31 is the external connection portion and driving portion of the keyless drill chuck for the 5th kind of distressed structure that the embodiment of the present invention five provides
Between installation diagram；(spline structure socket)
Figure 32 is the external connection portion and driving portion of the keyless drill chuck for the 5th kind of distressed structure that the embodiment of the present invention five provides
Between exploded view；
Figure 33 is the external connection portion and driving portion of the keyless drill chuck for the 5th kind of distressed structure that the embodiment of the present invention five provides
Between installation diagram；(spline structure socket)
Figure 34 is the external connection portion and driving portion of the keyless drill chuck for the 5th kind of distressed structure that the embodiment of the present invention five provides
Between exploded view；
Figure 35 is the external connection portion and driving portion of the keyless drill chuck for the 5th kind of distressed structure that the embodiment of the present invention five provides
Between installation diagram.(polygonal structure socket)
Icon: body after 100-；101- precursor；102- clamping jaw；103- driving portion；104- external connection portion；105- clamping jaw slideway；
107- pin；108- key；109- key set；110- open slot；Polygonal lug boss outside 111-；Polygonal sleeve part in 112-；The outer spiral shell of 113-
Line；114- internal screw thread；115- axial direction accommodating hole；116- fixing sleeve；117- axial limiting portion；The small part in the aperture 118-；119-
The big part in aperture；120- end cap；121- screw；The first elastic component of 122-；123- first end face gear；124- is axially extending
Portion；125- second end face gear；126- drilling tool receiving hole；127- protheca；It is covered in 128-；129- rear enclosure；130- body；131- set
Lid；The second elastic component of 132-；133- axial hole；134- screw rod；135- positioning sliding block portion；136- positioning runner；Body holds after 137-
Set portion；138- clamping jaw mounting portion；140- step surface；141- axial stop；142- third elastic component.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical", "horizontal",
The orientation or positional relationship of the instructions such as "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of retouching
It states the present invention and simplifies description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second ", " third " are only
For descriptive purposes, it is not understood to indicate or imply relative importance.In the description of the present invention, it should be noted that
Unless otherwise clearly defined and limited, term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixed
Connection, may be a detachable connection, or be integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly
It is connected, the connection inside two elements can also be can be indirectly connected through an intermediary.For the ordinary skill of this field
For personnel, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Embodiment one
It include rear body 100, precursor 101 and clamping jaw 102 the embodiment of the invention provides a kind of keyless drill chuck；Body can afterwards
It is rotated relative to precursor 101, and rear body is for driving clamping jaw to move along first direction, wherein rear body includes driving portion 103 and outer
Socket part 104, driving portion 103 are connected with external connection portion 104, and driving portion 103 has helicitic texture, and driving portion 103 passes through screw thread knot
Structure and clamping jaw screw-driven, so that clamping jaw is moved along first direction；It is provided with arrangement of clutch between body and precursor 101 afterwards, is used for
Body and precursor 101 after engagement or disconnection.And axially opposite displacement is generated between rear body and precursor 101, so that arrangement of clutch
First driving section engages or disconnects with the second driving section of arrangement of clutch, thus the engagement after realizing between body and precursor 101
Or it disconnects.By rear body can relative to precursor occur axial displacement, for enable the first driving section of arrangement of clutch with from
The second driving section set is attached together to engage or disconnect.
Specifically, after clamping jaw is clamped drilling tool, from the operative end surface of drilling tool when keyless drill chuck, the inverse time
Needle direction rotates to be the rotating forward of keyless drill chuck, is rotated clockwise as keyless drill chuck reversion.Body is relative to precursor 101 afterwards
It rotates forward, to realize clamping of the clamping jaw to drilling tool, rear body is inverted relative to precursor 101, to realize release of the clamping jaw to drilling tool.Body afterwards
The direction rotated and reverse regulation and precursor 101 the direction rotated and reverse regulation, the rwo with self-tightening bore
Collet to rotate and reverse direction identical.The positive and negative rotation of body can drive clamping jaw to move back and forth along first direction afterwards.Body can afterwards
Axis relative to precursor 101 around rear body rotates, and rear body and precursor 101 are coaxially disposed.It should be noted that the material of precursor can be with
For plastics, and/or the material of rear body can be plastics, and plastics can be engineering plastics, such keyless drill chuck it is light-weight, and
And manufacturing cost is low；In addition, the material of precursor can also be metal, and/or the material of rear body can be metal, that is to say, that
The material of precursor can be metal or plastics, and then the material of body can be with metal or plastics.
The embodiment keyless drill chuck, rear body rotate forward, clamping jaw may be implemented and be clamped to drilling tool, and then body inverts, can
To realize release of the clamping jaw to drilling tool；It may be implemented after realizing that clamping jaw is clamped drilling tool by body turn after making
Conventional turn, at this point, rear body rotates forward together with precursor 101；In the case where clamping jaw clamps drilling tool, body and precursor after making
After 101 are engaged by arrangement of clutch, keeps opposing stationary between body and precursor 101 after realizing by arrangement of clutch and be fixedly connected
State, i.e., rear body inverts together with precursor 101, so that keyless drill chuck Double-directional rotary is realized by arrangement of clutch, to realize
Drilling tool is driven to carry out two-way operation, better user experience.
In the optional scheme of the embodiment, clamping jaw slideway 105 is offered on precursor 101, clamping jaw is arranged in clamping jaw slideway 105
It is interior, and clamping jaw can be moved along the guide direction of clamping jaw slideway 105；First direction is equal with the guide direction of clamping jaw slideway 105
Row.
Specifically, the quantity of clamping jaw is equal with the quantity of clamping jaw slideway 105；The quantity of clamping jaw slideway 105 be it is multiple, it is more
A being arranged circumferentially around precursor 101 of clamping jaw slideway 105；Clamping jaw can only leading along clamping jaw slideway 105 in clamping jaw slideway 105
It is mobile to direction, and clamping jaw can not be rotated around the axis of the length direction of itself, can be set between clamping jaw and clamping jaw slideway 105
Spline structure is set to realize the rotation for preventing clamping jaw, spline structure can be realized for limiting slot with position limiting slide block, position limiting slide block
It can be the structures such as trapezoid block, T-block or pin 107.Limiting slot can be provided on clamping jaw slideway 105, and the extension of limiting slot
Direction is consistent with the guide direction of clamping jaw slideway 105, and position limiting slide block is fixed on clamping jaw；Or, limiting slot can be provided with folder
On the side of the length direction of pawl, and the extending direction of limiting slot is consistent with the long fragrant direction of clamping jaw, and position limiting slide block is fixed on folder
In pawl slideway 105.
In the optional scheme of the embodiment, the first driving section of arrangement of clutch is connected with precursor 101, and the of arrangement of clutch
Two driving sections are connected with rear body；Relative to precursor 101 axial displacement can also occur for body afterwards, be used in precursor 101 by outer
When portion's axial force, the first driving section can be engaged with the second driving section.
Specifically, the first driving section can be structure as a whole with precursor 101；Or first driving section can also and precursor
101 are fixedly connected；Or first driving section can also be detachably connected with precursor 101, and the first driving section can be same with precursor 101
Step rotation.Second driving section can be structure as a whole with rear body；Or second driving section can also be fixedly connected with rear body；Or second
Driving section can also be detachably connected with rear body, and the second driving section can be rotated synchronously with rear body.First driving section and second
Driving section matches, to realize body and precursor 101 after engagement or disconnection.By making rear body that axial displacement occur and being easy to implement
It can be in contact or separate between first driving section and the second driving section.It should be noted that the quantity of arrangement of clutch can be
It is multiple.
The embodiment of the present invention one additionally provides a kind of method of keyless drill chuck Double-directional rotary, after keyless drill chuck includes
Body, precursor 101 and clamping jaw, rear body include driving portion 103 and external connection portion 104, and driving portion 103 is connected with external connection portion 104, the party
Method includes: that helicitic texture is arranged in driving portion 103；Rear body is set to rotate relative to precursor 101, so that driving portion 103 passes through
Helicitic texture and clamping jaw screw-driven, wherein during screw-driven, clamping jaw is moved along first direction；In rear body and precursor
Arrangement of clutch is provided between 101, with body after engaging or disconnecting and precursor 101, by enabling rear body to occur relative to precursor
Axial displacement, so that the first driving section of arrangement of clutch can engage or disconnect with the second driving section of arrangement of clutch.
Embodiment two
Keyless drill chuck in the present embodiment two is improvement on the basis of embodiment one, technology disclosed in embodiment one
Content not repeated description, one disclosure of embodiment also belong to two disclosure of the present embodiment.
Referring to figs. 1 to 5, in the embodiment, driving portion 103 is detachably connected with external connection portion 104.
Specifically, polygonal structure set can be socketed or passed through between driving portion 103 and external connection portion 104 by spline structure
It connects, a certain amount of axial displacement can be generated between driving portion 103 and external connection portion 104 to realize, and driving portion 103 and external connection portion 104
Between can rotate synchronously.Spline structure includes the circumferential multiple keys 108 for being set to the rear end of driving portion 103, and setting
Key in the front end of external connection portion 104 covers 109, and multiple open slots 110 of 109 tool of key set, bond energy reaches insertion opening slot 110, thus
It is radially fixed between realization driving portion 103 and external connection portion 104, it can rotate synchronously, and axially can produce displacement.It is polygonal
Structure includes the outer polygonal lug boss 111 for being set to the rear end of driving portion 103, and be set to external connection portion 104 front end it is interior
Polygonal sleeve part 112；Outer polygonal lug boss 111 is inserted into interior polygonal sleeve part 112, realizes between driving portion 103 and external connection portion 104
It is radially fixed, can rotate synchronously, and axial can produce displacement.
In the optional scheme of the embodiment, helicitic texture is the external screw thread 113 that the front end of driving portion 103 is arranged in, clamping jaw
One side be provided with the internal screw thread 114 matched with the external screw thread of the front end of driving portion 103.
Specifically, driving portion 103 and external connection portion 104 all have axial internal thread hole, in order to be connected with external equipment
It connects.Driving portion 103 and external connection portion 104 are plugged in the axial accommodating hole 115 of precursor 101；Driving portion 103 and external connection portion 104 are same
Axis setting；It is connected between clamping jaw slideway 105 and the axial accommodating hole 115 of precursor 101, the outer spiral shell of the front end of such driving portion 103
Line is just meshed with the internal screw thread of the clamping jaw in clamping jaw slideway 105, when driving portion 103 relative to precursor 101 around the axis of precursor 101
When line rotates, driving portion 103 just drives clamping jaw to move along the guide direction of clamping jaw slideway 105, to realize clamping jaw to drilling tool
Clamp or release；In the embodiment, when driving portion 103 rotates forward, clamping of the clamping jaw to drilling tool is realized；When driving portion 103 inverts
When, realize release of the clamping jaw to drilling tool.After external connection portion 104 is connected with driving portion 103, the rotation of external connection portion 104 can drive drive
Dynamic portion 103 rotates synchronously.
In the optional scheme of the embodiment, keyless drill chuck further includes fixing sleeve 116, and 116 sets of fixing sleeve in external connection portion 104
Front end, and the interior diameter of fixing sleeve 116 be greater than external connection portion 104 front end key set 109 outer diameter or fixing sleeve 116 it is interior
Diameter is greater than the overall diameter of the interior polygonal sleeve part 112 of the front end of external connection portion 104.When driving portion 103 is connected with external connection portion 104
Afterwards, fixing sleeve 116 can wrap the junction of driving portion 103 Yu external connection portion 104, that is, wrap spline structure or polygonal knot
Structure, and the axial limiting portion 117 of 116 driven part 103 of fixing sleeve is limited, and fixing sleeve 116 is made not cross driving portion 103
Axial limiting portion 117, i.e. fixing sleeve 116 will not slide into the front end of driving portion 103.
In the optional scheme of the embodiment, the axial accommodating hole 115 of precursor 101 is stepped hole, and the aperture of stepped hole is big
Part 119 close to the rear end of precursor 101, small rear end of the part 118 far from precursor 101 in the aperture of stepped hole；Body is installed afterwards
In the big part 119 in the aperture of stepped hole.
In the optional scheme of the embodiment, keyless drill chuck further includes end cap 120, after end cap 120 is fixed on precursor 101
On the end face at end, for rear body to be limited in the axial accommodating hole 115 of precursor 101, and rear body is in the axial direction accommodating of precursor 101
Hole 115 can generate axial displacement.
Hold specifically, the front end of fixing sleeve 116, driving portion 103 and external connection portion 104 is respectively positioned on the axial of precursor 101
It sets in hole 115, and the rear end of external connection portion 104 is pierced by the cap bore of end cap 120.By in screw 121, screw element or elastic component extremely
A kind of few formula realization end cap 120 is fixedly connected with the end face of the rear end of precursor 101.End cap 120 is fixedly connected with precursor 101
Afterwards, due to the effect of fixing sleeve 116, driving portion 103 can only be rotated around the axis of precursor 101, and driving portion 103 cannot be along axial direction
Movement；And since the axial length of the key of the front end of external connection portion 104 set 109 is less than the inner surface and driving portion 103 of end cap 120
The axial length of the interior polygonal sleeve part 112 of the front end of the distance between the rear end face in axial limiting portion 117 or external connection portion 104
Less than the distance between the rear end face in the axial limiting portion 117 of the inner surface and driving portion 103 of end cap 120, so that external
Portion 104 can drive driving portion 103 to rotate, and external connection portion 104 can also generate a certain amount of axial displacement.End cap 120 it is interior
Surface is the side towards axial accommodating hole 115.
In the optional scheme of the embodiment, the first elastic component 122 is provided between driving portion 103 and external connection portion 104.
Specifically, the first elastic component 122 is waveform spring washer, the outer diameter of the first elastic component 122 is less than fixing sleeve 116
Interior diameter, and the interior diameter of waveform spring washer be greater than driving portion 103 rear end overall diameter, such waveform spring washer is just
It may be mounted between the rear end face in the axial limiting portion 117 of driving portion 103 and the end face of the front end of external connection portion 104.
In the optional scheme of the embodiment, end cap 120 is connected with the first driving section, the rear end of rear body and the second driving section
It is connected.
Specifically, the first driving section is first end face gear 123, which is set in end cap 120
In axially-extending portion 124, and fixed between first end face gear 123 and the axially-extending portion 124 of end cap 120 by key, the key
It can be structure as a whole with the axial hole 133 of first end face gear 123, it can also be outer with the axially-extending portion 124 of end cap 120
Wall is structure as a whole, and axial displacement can only occur for such first driving section and end cap 120, and the first driving section can be with end cap
120 rotate together.It should be noted that the second driving section can also be internal spline on the interior jacket wall of rear enclosure 129, first
Driving section is the external splines on the outer peripheral surface of the rear end of precursor 101, and interior flower builds the cooperation between external splines, realizes rear enclosure 129
With the engagement between precursor 101, the tooth form of internal spline and external splines ratchet (namely helical teeth) or all can be wait kidney-shapeds angular
Tooth；Second driving section can also be arranged on other components being mutually fixedly connected with rear body, and the first driving section is arranged other
On the component being fixedly connected with precursor 101；First driving section (i.e. ring gear) is located to the ring inner hole wall of rear body holding part 137
On；Second driving section (i.e. outer gear ring) is arranged on the periphery wall of external connection portion, the purpose of the present invention similarly may be implemented, it should
Scheme is also within protection scope of the present invention.The gear teeth in outer circle are outer gear rings, and the gear teeth in inner circle are ring gears.
In the optional scheme of the embodiment, keyless drill chuck further includes protheca 127, middle set 128 and rear enclosure 129；Protheca 127
It covers in the front end of precursor 101, and protheca 127 can be threadably secured with precursor 101 and connect, to enhance the precursor of precursor 101
The intensity of 101 front end.The protheca 127 can also be structure as a whole with precursor 101 or the protheca can also pass through with precursor
Cooperation of being full of achieves a fixed connection.Middle set 128 is arranged the rear end of precursor 101, and can pass through key between middle set 128 and precursor 101
Connection or screw 121 connect.Rear enclosure 129 includes body 130 and upper shield 131, and body 130 and upper shield 131 can be integrated knot
Structure.Upper shield 131 is connected by key with rear body.For second transmission portion in the interior capping of upper shield 131, the second driving section is second end face
Gear 125, the second end face gear 125 are structure as a whole with upper shield 131, second end face gear 125 and first end face gear
123 can be meshed, thus realize the engagement of external connection portion 104 Yu precursor 101, i.e., the engagement of rear body and precursor 101.In use,
It is able to drive the rotation of external connection portion 104 by rotating rear enclosure 129, so that external connection portion 104 drives driving portion 103 to rotate synchronously.
In the optional scheme of the embodiment, the section of the tooth of the tooth and second end face gear 125 of first end face gear 123 can
Obtuse triangle or isosceles triangle are thought, when for obtuse triangle, that is to say, that tooth is ratchet.First end face gear
When 123 tooth and the tooth of second end face gear 125 are ratchet, when rear body rotates forward, even if first end face gear 123 and second
When face gear 125 is in contact, rear body still is able to relatively rotate with precursor 101, i.e. ratchet between two face gears will not
Play the role of rotation stop, and when the reversion of rear body, the ratchet between first end face gear 123 and second end face gear 125 can rise
It is acted on to rotation stop, inverts rear body together with precursor 101.
In the optional scheme of the embodiment, the second elastic component can be set between first end face gear 123 and end cap 120
132, the second elastic component 132 is waveform spring washer.The effect of second elastic component 132 is to guarantee first end face gear 123, second
Face gear 125 can be engaged completely in the case where work, avoid the occurrence of first end face gear 123 and second end face
Tooth tip occur between gear 125 leads to out of mesh situation to tooth tip.The internal diameter of second elastic component 132 is greater than end cap 120
The overall diameter of axially-extending portion 124, the second elastic component 132 are set in the axially-extending portion 124 of end cap 120.It needs to illustrate
It is that the wave height of the second elastic component 132 can guarantee first end face gear 123 and less than the wave height of the first elastic component 122 in this way
Biend gear 125 does not work in drill chuck and when stationary state, two all between can be completely disengaged.
In the embodiment, the working principle of keyless drill chuck are as follows:
In keyless drill chuck in the state of not working and be static (the i.e. drilling tool of the keyless drill chuck not work with construction site
It is in contact as face), drilling tool is put into the drilling tool receiving hole 126 of precursor 101, two hands hold protheca 127 and rear enclosure respectively
129, opposite rotation is done, rear enclosure 129 drives the external connection portion 104 of connection fixed thereto, and then driving portion 103 is driven to rotate, and drives
Dynamic external screw thread of the portion 103 by front end, drives the clamping jaw connecting with its threads turn, keeps clamping jaw of the clamping jaw in precursor 101 sliding
It is moved in road 105, until clamping jaw closure clamps drilling tool.
When keyless drill chuck is started to work, the working face of the drilling tool clamped by keyless drill chuck and the work of product to be processed
Make face contact, when the external equipment being connected with rear body applies to the axial force of the working face of product to be processed rear body, causes
Body is moved along the direction where axial direction to the working face of product to be processed afterwards, and the first elastic component 122 is flattened, while rear body drives
Second end face gear 125 and first end face gear 123 connected to it are at a fully engaged, and keyless drill chuck is started to work.
In the keyless drill chuck course of work, when keyless drill chuck rotates forward work, and in first end face gear 123 and the
In the case that the tooth of biend gear 125 is ratchet, first end face gear 123 and second end face gear 125 can rotate forward super
More, so that reaching for the clamping force to drilling tool of keyless drill chuck is maximum, drilling tool is clamped tighter, can guarantee that drilling tool is working
When it is non-slip, and smoothly complete work.
It is at a fully engaged and can not exceed when keyless drill chuck needs to invert work in the keyless drill chuck course of work
First end face gear 123 and second end face gear 125 more, the precursor 101 being fixedly connected respectively with them, rear body are fixed into
It is integrated, favorably accomplishes the work of reversion, be not in keyless drill chuck currently on the market in the case where reversion, precursor
101, between rear body radial rotating and cause clamping jaw to unclamp drilling tool, the case where work cannot be inverted.
When keyless drill chuck complete work and it is again static after, drilling tool leaves the working face of product to be processed and loses the job
The reaction force in face, the first elastic component 122 are again flicked external connection portion using the elastic force of itself in axially opposite direction, are driven and the
The rear enclosure 129 that biend gear 125 is connected moves, and keeps second end face gear 125 and first end face gear 123 completely disengaged,
At this moment protheca 127 is with the hands held respectively and rear enclosure 129 does opposite rotation, then unclamp drilling tool.
Embodiment three
Keyless drill chuck in the present embodiment three is improvement on the basis of embodiment two, technology disclosed in embodiment two
Content not repeated description, one disclosure of embodiment also belong to three disclosure of the present embodiment.
In the embodiment, end cap 120 is structure as a whole with the first driving section, i.e., end cap 120 is with first end face gear 123
Integral structure；The annular end face tooth of first end face gear 123 is just located on the end face of axially-extending portion 124 of end cap 120.
Since end cap 120 and the first driving section are structure as a whole, in this embodiment, the first elastic component 122 has
Nothing and its installation site, the presence or absence of second elastic component 132 and its installation site can change accordingly.Referring to Fig. 6 and Fig. 7 institute
Show, such as when only retaining the first elastic component 122, and saving the second elastic component 132, the first elastic component 122 is located at driving portion 103
Between external connection portion 104.Referring to shown in Fig. 8 and Fig. 9, when only retaining the second elastic component 132, and saving the first elastic component 122,
The internal diameter of second elastic component 132 is greater than the overall diameter of the axially-extending portion 124 of end cap 120, and the second elastic component 132 is set in end cap
In 120 axially-extending portion 124.
Example IV
The present embodiment four also provides a kind of keyless drill chuck, and the keyless drill chuck of the embodiment describes described first and passes
Another implementation of the installation site in dynamic portion and the second driving section, the technical solution of embodiment two in addition to this also belong to
The embodiment is not repeated to describe.
Referring to shown in Figure 10 to Figure 19, in the embodiment, the big part 119 in aperture of stepped hole is arranged in the first driving section
Bottom hole, the end face of the front end of rear body is arranged in the second driving section.
Specifically, the end face of the front end of driving portion 103 is arranged in the second driving section, that is, first end face gear 123 is arranged
The end face of the front end of driving portion is arranged in bottom hole in the big part 119 in the aperture of stepped hole, second end face gear 125.First
The bottom hole of the part 119 big with the aperture of stepped hole of face gear 123 is structure as a whole, second end face gear 125 and driving portion
The end face of front end be structure as a whole.
In the optional scheme of the embodiment, the front end of the bottom hole and driving portion 103 of the big part 119 in the aperture of stepped hole
Third elastic component 142 is provided between end face, third elastic component can be waveform spring washer.
In the optional scheme of the embodiment, the internal diameter of third bullet part part is greater than the overall diameter of the first driving section, and such first
After elastic component 122 is mounted on the bottom hole of the big part 119 in aperture of stepped hole, the first driving section and the second driving section will not influence
Between meshing relation.
It should be noted that in this embodiment, since the installation site of the first driving section and the second driving section has occurred
Change, therefore the second elastic component 132 can be saved；It may be omitted with fixing sleeve 116.In addition, can be protected for the first elastic component
It stays or saves.
Embodiment five
Keyless drill chuck in the present embodiment five is improvement on the basis of embodiment one, technology disclosed in embodiment one
Content not repeated description, one disclosure of embodiment also belong to five disclosure of the present embodiment.
0 to shown in Figure 25 referring to fig. 2, and in the embodiment, driving portion 103 is detachably connected with external connection portion 104.
Referring to shown in Figure 30 to Figure 35, specifically, spline structure can be passed through between driving portion 103 and external connection portion 104
Socket is socketed by polygonal structure, and a certain amount of axial displacement can be generated between driving portion 103 and external connection portion 104 to realize, and
It can be rotated synchronously between driving portion 103 and external connection portion 104.Spline structure includes the circumferential direction for being set to the rear end of driving portion 103
Multiple keys, and be set to external connection portion 104 front end key set 109, key set 109 tool multiple open slots 110, bond energy enough insert
Enter open slot 110, to realize radially fixed between driving portion 103 and external connection portion 104, can rotate synchronously, and is axial
It can produce displacement.Polygonal structure includes the outer polygonal lug boss 111 for being set to the rear end of driving portion 103, and is set to outer
The interior polygonal sleeve part 112 of the front end of socket part 104；Outer polygonal lug boss 111 is inserted into interior polygonal sleeve part 112, realizes driving portion
It is radially fixed between 103 and external connection portion 104, it can rotate synchronously, and axially can produce displacement.
In the optional scheme of the embodiment, helicitic texture is the internal screw thread being arranged in the axial hole 133 of driving portion 103
114；Clamping jaw is installed on the end face of the front end of screw rod 134, and screw rod 134 is arranged in the axial hole 133 of driving portion 103, and spiral shell
The rear end of bar 134 has the external screw thread 113 matched with the internal screw thread in the axial hole 133 of driving portion 103.The rear end of clamping jaw has
There is positioning sliding block portion 135, there is positioning runner 136 on the end face of the front end of screw rod 134, positioning sliding block portion 135 is installed on positioning
In sliding slot 136, the positioning sliding block portion 135 of such clamping jaw has centainly in the positioning runner 136 on the end face of the front end of screw rod 134
The amount of moving radially, and screw rod 134 can push clamping jaw to move along the guide direction of clamping jaw slideway 105.
Precursor 101 includes rear body holding part 137 and clamping jaw mounting portion 138；Clamping jaw mounting portion 138 and rear body holding part 137
Between be connected through a screw thread or spline is fixedly connected, i.e., the rear end of clamping jaw mounting portion 138 has external screw thread or spline, and
The front end of body holding part 137 has the internal screw thread or spline matched with the external screw thread of the rear end of clamping jaw mounting portion 138 afterwards.
The axial hole 133 of the axial hole 133 of body holding part 137 and clamping jaw mounting portion 138 afterwards, the two synthesize the axial accommodating of precursor 101
Hole 115, such driving portion 103 and external connection portion 104 are just plugged in the axial accommodating hole 115 of precursor 101.Before driving portion 103
The end face at end and the end face of the rear end of clamping jaw mounting portion 138 abut against, the rear end face in the axial limiting portion 117 of driving portion 103 with
The step surface 140 on the hole wall in the axis hole of body holding part 137 abuts against afterwards, and such driving portion 103 holds in the axial direction of precursor 101
It sets in hole 115, can only be rotated around the axis of axial accommodating hole 115, and driving portion 103 cannot be along the axial direction of axial accommodating hole 115
Direction generates axial displacement.External connection portion 104 can generate a certain amount of axial displacement in axial accommodating hole 115.
External connection portion 104 has axial internal thread hole or axial conical hole, in order to be connected with external equipment.Driving portion
103 and external connection portion 104 be plugged in the axial accommodating hole 115 of precursor 101；Driving portion 103 and external connection portion 104 are coaxially disposed；Folder
It is connected between pawl slideway 105 and the axial hole 133 of clamping jaw mounting portion 138.When driving portion 103 is relative to clamping jaw mounting portion 138
When rotation, driving portion 103 just drives screw rod 134 along the axial movement of screw rod 134, so that screw rod 134 drives clamping jaw sliding along clamping jaw
The guide direction in road 105 is mobile, to realize clamping jaw to the clamp or release of drilling tool；In the embodiment, when driving portion 103 rotates forward
When, realize clamping of the clamping jaw to drilling tool；When driving portion 103 inverts, release of the clamping jaw to drilling tool is realized.External connection portion 104 and drive
After dynamic portion 103 is connected, the rotation of external connection portion 104 can drive driving portion 103 to rotate synchronously.
In the optional scheme of the embodiment, keyless drill chuck further includes end cap 120, and end cap 120 is fixed on rear body holding part
On the end face of 137 rear end, for rear body to be limited in the axial accommodating hole 115 of precursor 101, and rear body is in precursor 101
Axial displacement can be generated in axial accommodating hole 115.
Specifically, the front end of driving portion and external connection portion 104 is respectively positioned in the axial accommodating hole 115 of precursor 101, it is external
Portion 104 can generate axial displacement in the axial accommodating hole 115 of precursor 101.The rear end of external connection portion 104 is pierced by end cap 120
Cap bore.End cap 120 is fixedly connected with the end face of the rear end of rear body holding part 137 by screw 121.End cap 120 and rear body accommodate
After portion 137 is fixedly connected, due on the hole wall in the end face of the rear end of clamping jaw mounting portion 138 and the axis hole of rear body holding part 137
Step surface 140 effect, driving portion 103 can only be rotated around the axis of precursor 101, and driving portion 103 cannot be axially movable；
And since the axial length of the key of the front end of external connection portion 104 set 109 is less than the inner surface of end cap 120 and the axial direction of driving portion 103
The axial direction of the interior polygonal sleeve part 112 of the front end of 104 external connection portion 104 of the distance between rear end face of stopper section 141 or external connection portion
Length is less than the distance between the rear end face of the inner surface of end cap 120 and the axial stop 141 of driving portion 103, so that
External connection portion 104 can drive driving portion 103 to rotate, and external connection portion 104 can also generate a certain amount of axial displacement.End cap 120
Inner surface be the side towards axial accommodating hole 115.
In the optional scheme of the embodiment, the first elastic component 122 is provided between driving portion 103 and external connection portion 104.
Specifically, the first elastic component 122 is waveform spring washer, the outer diameter of the first elastic component 122 is accommodated less than rear body
The interior diameter of the axial hole 133 in hole, and the interior diameter of the first elastic component 122 is greater than the overall diameter of the rear end of driving portion 103, in this way
Waveform spring washer can be mounted on the end of the rear end face of the axial stop 141 of driving portion 103 and the front end of external connection portion 104
Between face.The overall diameter of the axial stop 141 of driving portion 103 is less than the overall diameter in the axial limiting portion 117 of driving portion 103,
And the axial limiting portion 117 of driving portion 103 is close to the front end of driving portion 103, and the axial stop 141 of driving portion 103 is separate
The front end of driving portion 103.It should be noted that the interior diameter of the first elastic component 122 is also less than the rear end of driving portion 103
Overall diameter, key of such first elastic component 122 just positioned at the front end of the end face and external connection portion 104 of the rear end of driving portion 103 cover 109
Set bottom between.
In the optional scheme of the embodiment, end cap 120 is connected with the first driving section, the rear end of rear body and the second driving section
It is connected.
Specifically, the first driving section is first end face gear 123, which is set in end cap 120
In axially-extending portion 124, and fixed between first end face gear 123 and the axially-extending portion 124 of end cap 120 by key, the key
It can be structure as a whole with the axial hole 133 of first end face gear 123, it can also be outer with the axially-extending portion 124 of end cap 120
Wall is structure as a whole, and axial displacement can only occur for such first driving section and end cap 120, and the first driving section can be with end cap
120 rotate synchronously together.Second driving section is fixedly connected with the rear end of external connection portion 104.It should be noted that the second driving section is also
It can be the internal spline on the interior jacket wall of rear enclosure 129, the first driving section is the outer flower on the outer peripheral surface of the rear end of precursor 101
Key, interior flower build the cooperation between external splines, realize the engagement between rear enclosure 129 and precursor 101, the tooth of internal spline and external splines
Shape ratchet or all can be wait kidney-shapeds angular teeth；Other components being mutually fixedly connected with rear body can also be arranged in second driving section
On, and the first driving section is arranged on other components being fixedly connected with precursor 101.
In the optional scheme of the embodiment, keyless drill chuck further includes protheca 127 and rear enclosure 129；Clamping jaw mounting portion 138 is pacified
In sets of holes loaded on protheca 127, and clamping jaw mounting portion 138 can be fixedly connected with protheca 127 by rear body holding part 137, this
Sample protheca 127 can prevent clamping jaw from skidding off out of clamping jaw slideway 105.There is internal screw thread, rear body holding part in the sets of holes of protheca 127
137 front end has the external screw thread matched with the internal screw thread in the sets of holes of protheca 127, such protheca 127 and rear body holding part
137 are threadably secured connection, so that fixed between protheca 127, clamping jaw mounting portion 138 and rear 137 three of body holding part
Connection.
Rear enclosure 129 includes body 130 and upper shield 131, and body 130 can be structure as a whole with upper shield 131.Upper shield 131 with
Body is connected by key afterwards.For second transmission portion in the interior capping of upper shield 131, the second driving section is second end face gear 125, this
Biend gear 125 is structure as a whole with upper shield 131, and second end face gear 125 can be nibbled mutually with first end face gear 123
It closes, thus realize the engagement of external connection portion 104 Yu precursor 101, i.e., the engagement of rear body and precursor 101.In use, passing through rotation rear enclosure
129 are able to drive the rotation of external connection portion 104, so that external connection portion 104 drives driving portion 103 to rotate synchronously.
In the optional scheme of the embodiment, the section of the tooth of the tooth and second end face gear 125 of first end face gear 123 can
Right angled triangle, obtuse triangle or isosceles triangle are thought, when for obtuse triangle, that is to say, that tooth is ratchet.The
When the tooth of one face gear 123 and the tooth of second end face gear 125 are ratchet, when rear body rotates forward, even if first end face tooth
When wheel 123 is in contact with second end face gear 125, rear body still is able to relatively rotate with precursor 101, i.e. between two face gears
Ratchet will not play the role of rotation stop, and when the reversion of rear body, between first end face gear 123 and second end face gear 125
Ratchet can play the role of rotation stop, invert rear body together with precursor 101.
In the optional scheme of the embodiment, the second elastic component can be set between first end face gear 123 and end cap 120
132, the second elastic component 132 is waveform spring washer.The effect of second elastic component 132 is to guarantee first end face gear 123, second
Face gear 125 can be engaged completely in the case where work, avoid the occurrence of first end face gear 123 and second end face
Tooth tip occur between gear 125 leads to out of mesh situation to tooth tip.It should be noted that the wave height of the second elastic component 132
Less than the wave height of the first elastic component 122, first end face gear 123 and second end face gear 125 can be guaranteed in static shape in this way
When state, two all between can be completely disengaged.The internal diameter of second elastic component 132 is greater than the outer straight of the axially-extending portion 124 of end cap 120
Diameter, the second elastic component 132 are set in the axially-extending portion 124 of end cap 120.
In the embodiment, the working principle of keyless drill chuck are as follows:
In keyless drill chuck in the state of not working and be static (the i.e. drilling tool of the keyless drill chuck not work with construction site
It is in contact as face), drilling tool is put into the drilling tool receiving hole 126 of clamping jaw mounting portion 138, left hand holds protheca 127, and the right hand is held
Rear enclosure 129 does mutual rotation, because rear enclosure 129 is fixedly connected with external connection portion 104, so rear enclosure 129 drives 104 turns of external connection portion
It is dynamic, and then driving portion 103 is driven to rotate, driving portion 103 drives screw rod 134 to move up and down, and mobile screw rod 134 drives phase therewith
The clamping jaw of connection moves on clamping jaw slideway 105, effect of the clamping jaw mounting portion 138 in the cone hole part of the front end of 127 sets of holes of protheca
Under, it move axially clamping jaw can only on clamping jaw slideway 105, bored to realize to clamp the closure of drilling tool or open to unclamp
Tool.In addition, in keyless drill chuck in the state of not working and be static, due to the first elastic component 122 using natural resiliency will
Axially movable external connection portion 104 flicks, and external connection portion 104 drives the rear enclosure 129 of connection fixed thereto to move, and makes rear enclosure 129
On second end face gear 125 and rear body holding part 137 on the first end face gear 123 that is fixedly connected it is completely disengaged.Thus
It may be implemented to rotate forward and backward set 129 using both hands drilling tool can initially be clamped to or be unclamped the purpose of drilling tool.
When keyless drill chuck is started to work, the working face of the drilling tool clamped by keyless drill chuck and the work of product to be processed
Make face contact, when the external equipment being connected with rear body applies to the axial force of the working face of product to be processed rear body, causes
Body is moved along the direction where axial direction to the working face of product to be processed afterwards, and the first elastic component 122 is flattened, while rear body drives
Second end face gear 125 and first end face gear 123 connected to it are at a fully engaged, and keyless drill chuck is started to work.
In the keyless drill chuck course of work, when keyless drill chuck rotates forward work, and in first end face gear 123 and the
In the case that the tooth of biend gear 125 is ratchet, first end face gear 123 and second end face gear 125 can rotate forward super
More, so that reaching for the clamping force to drilling tool of keyless drill chuck is maximum, drilling tool is clamped tighter, can guarantee that drilling tool is working
When it is non-slip, and smoothly complete work.
It is at a fully engaged and can not exceed when keyless drill chuck needs to invert work in the keyless drill chuck course of work
First end face gear 123 and second end face gear 125 more, the precursor 101 being fixedly connected respectively with them, rear body are fixed into
It is integrated, favorably accomplishes the work of reversion, be not in keyless drill chuck currently on the market in the case where reversion, precursor
101, between rear body radial rotating and cause clamping jaw to unclamp drilling tool, the case where work cannot be inverted.
When keyless drill chuck complete work and it is again static after, drilling tool leaves the working face of product to be processed and loses the job
Rear body is flicked using the elastic force of itself in axially opposite direction again, is driven and second by the reaction force in face, the first elastic component 122
The rear enclosure 129 that face gear 125 is connected moves, and keeps second end face gear 125 and first end face gear 123 completely disengaged, after
And precursor 101 is caused no longer to be fixedly connected but can mutually be freely rotated with rear body, protheca 127 is at this moment with the hands held respectively
Opposite rotation is done with rear enclosure 129, then unclamps drilling tool.
Embodiment six
Keyless drill chuck in the present embodiment six is improvement on the basis of embodiment five, technology disclosed in embodiment five
Content not repeated description, five disclosure of embodiment also belong to six disclosure of the present embodiment.
In the embodiment, end cap 120 is structure as a whole with the first driving section, i.e., end cap 120 is with first end face gear 123
Integral structure；The annular end face tooth of first end face gear 123 is just located on the end face of axially-extending portion 124 of end cap 120.
Since end cap 120 and the first driving section are structure as a whole, in this embodiment, the first elastic component 122 has
It can change accordingly without nothing and its installation site, the presence or absence of second elastic component 132 and its installation site.6 and Figure 27 referring to fig. 2
It is shown, such as when only retaining the first elastic component 122, and saving the second elastic component 132, the first elastic component 122 is located at driving portion
Between 103 and external connection portion 104.Referring to fig. 2 shown in 8 and Figure 29, when only retaining the second elastic component 132, and the first elastic component is saved
When 122, the internal diameter of the second elastic component 132 is greater than the overall diameter of the axially-extending portion 124 of end cap 120, and the second elastic component 132 is arranged
In the axially-extending portion 124 of end cap 120.It needs, the second elastic component is located between end cap 120 and upper shield 131, can also
To achieve the object of the present invention.
Embodiment seven
It includes that embodiment one is provided to any embodiment in six is implemented that the embodiment of the present invention six, which provides a kind of drill kind tool,
Keyless drill chuck.
In conclusion the arrangement of clutch of keyless drill chuck provided in an embodiment of the present invention can be set rear body and precursor it
Between, or, arrangement of clutch be arranged between external connection portion and driving portion or arrangement of clutch setting be fixedly connected with rear body and with
Between the component that precursor is fixedly connected.In addition, between rear body and precursor or between external connection portion and driving portion, or with rear body
It is fixedly connected and can be provided with elastic component between the component that is fixedly connected with precursor.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (11)
1. a kind of keyless drill chuck, which is characterized in that including rear body, precursor and clamping jaw；After described body can it is opposite with it is described before
Body rotation, and it is described after body for driving the clamping jaw to move along first direction, wherein body includes driving portion and external after described
Portion, the driving portion are connected with the external connection portion, and the driving portion has helicitic texture, and the driving portion passes through the screw thread
Structure and the clamping jaw screw-driven, so that the clamping jaw is moved along first direction；
It is provided with arrangement of clutch between body and the precursor after described, for engaging or disconnecting the rear body and the precursor；
Relative to the precursor axial displacement can also occur for body after described, for enabling the first driving section of the arrangement of clutch
It is enough to engage or disconnect with the second driving section of the arrangement of clutch.
2. keyless drill chuck according to claim 1, which is characterized in that clamping jaw slideway is offered on the precursor, it is described
Clamping jaw is arranged in the clamping jaw slideway, and the clamping jaw can be moved along the guide direction of the clamping jaw slideway；Described first
Direction is parallel with the guide direction of the clamping jaw slideway.
3. keyless drill chuck according to claim 1 or 2, which is characterized in that the first driving section of the arrangement of clutch with
The precursor is connected, and the second driving section of the arrangement of clutch is connected with the rear body, in the precursor by external axis
When to power, first driving section can be engaged with second driving section.
4. keyless drill chuck according to claim 3, which is characterized in that the helicitic texture is to be arranged in the driving portion
Front end external screw thread, the one side of the clamping jaw is provided with the interior spiral shell matched with the external screw thread of the front end of the driving portion
Line, the driving portion are detachably connected with the external connection portion；
Or, the helicitic texture is the internal screw thread being arranged in the axial hole of the driving portion；The clamping jaw is installed on screw rod
On the end face of front end, the screw rod is arranged in the axial hole of the driving portion, and the rear end of the screw rod has and the drive
The external screw thread that internal screw thread in the axial hole in dynamic portion matches, the driving portion are detachably connected with the external connection portion.
5. keyless drill chuck according to claim 4, which is characterized in that further include end cap, the end cap is fixed on described
On the end face of the rear end of precursor, for the rear body to be limited in the axial accommodating hole of the precursor, and the rear body is in institute
The axial accommodating hole for stating precursor can generate axial displacement.
6. keyless drill chuck according to claim 5, which is characterized in that the axial accommodating hole of the precursor is stepped hole,
And the big part in aperture of the stepped hole, close to the rear end of the precursor, the aperture of the stepped hole is small partially away from described
The rear end of precursor；
In the big part in the aperture that the rear body is installed on the stepped hole.
7. keyless drill chuck according to claim 1, which is characterized in that be arranged between the driving portion and the external connection portion
There is the first elastic component.
8. keyless drill chuck according to claim 6, which is characterized in that the end cap is connected with first driving section
It connects, the rear end of the rear body is connected with second driving section；
Or, the bottom hole of the big part in first driving section aperture that the stepped hole is arranged in, the second driving section setting
The end face of the front end of body after described.
9. a kind of keyless drill chuck, which is characterized in that including rear body, precursor and clamping jaw；After described body can it is opposite with it is described before
Body rotation, and it is described after body for driving the clamping jaw to move along first direction, wherein body includes driving portion and external after described
Portion, the driving portion are connected with the external connection portion, and the driving portion has helicitic texture, and the driving portion passes through the screw thread
Structure and the clamping jaw screw-driven, so that the clamping jaw is moved along first direction；
It is provided with arrangement of clutch between body and the precursor after described, for engaging or disconnecting the rear body and the precursor；
Relative to the precursor axial displacement can also occur for body after described, for enabling the first driving section of the arrangement of clutch
It is enough to engage or disconnect with the second driving section of the arrangement of clutch；
The material of body is plastics after the material of the precursor is plastics and/or is described.
10. a kind of method of keyless drill chuck Double-directional rotary, the keyless drill chuck includes rear body, precursor and clamping jaw, after described
Body includes driving portion and external connection portion, and the driving portion is connected with the external connection portion, which is characterized in that this method comprises: in institute
State driving portion setting helicitic texture；The rear body is set to rotate relative to the precursor, so that the driving portion is described in
Helicitic texture and the clamping jaw screw-driven, wherein during screw-driven, the clamping jaw is moved along first direction；
It is provided with arrangement of clutch between body and the precursor after described, to engage or disconnect the rear body and the precursor；It is logical
Cross enable it is described after body relative to the precursor axial displacement occurs so that the first driving section of the arrangement of clutch can be with
Second driving section of the arrangement of clutch engages or disconnects.
11. a kind of drill kind tool, which is characterized in that including keyless drill chuck as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810861861.7A CN108971536A (en) | 2018-08-01 | 2018-08-01 | Keyless drill chuck, the method for keyless drill chuck Double-directional rotary and drill kind tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810861861.7A CN108971536A (en) | 2018-08-01 | 2018-08-01 | Keyless drill chuck, the method for keyless drill chuck Double-directional rotary and drill kind tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108971536A true CN108971536A (en) | 2018-12-11 |
Family
ID=64552486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810861861.7A Withdrawn CN108971536A (en) | 2018-08-01 | 2018-08-01 | Keyless drill chuck, the method for keyless drill chuck Double-directional rotary and drill kind tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108971536A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020220420A1 (en) * | 2019-04-28 | 2020-11-05 | 柳尧亭 | Clutch device, drill chuck, power tool, and bidirectional rotation method of drill chuck |
| RU2776267C1 (en) * | 2019-04-28 | 2022-07-15 | Яотин ЛЮ | Clutch mechanism, clamping chuck, driving tool and method for bidirectional rotation of the clamping chuck |
-
2018
- 2018-08-01 CN CN201810861861.7A patent/CN108971536A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020220420A1 (en) * | 2019-04-28 | 2020-11-05 | 柳尧亭 | Clutch device, drill chuck, power tool, and bidirectional rotation method of drill chuck |
| JP2022521903A (en) * | 2019-04-28 | 2022-04-13 | 堯 亭 柳 | Two-way rotation method of clutch device, drill chuck, power tool and drill chuck |
| RU2776267C1 (en) * | 2019-04-28 | 2022-07-15 | Яотин ЛЮ | Clutch mechanism, clamping chuck, driving tool and method for bidirectional rotation of the clamping chuck |
| JP7274593B2 (en) | 2019-04-28 | 2023-05-16 | 堯 亭 柳 | CLUTCH DEVICE, DRILL CHUCK, POWER TOOL AND METHOD OF TWO-DIRECTIONAL ROTATING OF DRILL CHUCK |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9649697B2 (en) | Power drill | |
| EP1789224B1 (en) | Chuck with nutating gear reduction | |
| CN101125373B (en) | Locking chuck | |
| EP2987574B1 (en) | A clamping device | |
| CN109304567A (en) | A kind of flexible frock for ring-shaped work pieces welding | |
| WO2010057397A1 (en) | A self-lock manual tightening drill chuck | |
| CN106424861A (en) | Gear self-tightening drill chuck and flat claw self-tightening drill chuck | |
| CN208728703U (en) | Keyless drill chuck and drill kind tool | |
| JP6989598B2 (en) | Gear self-tightening drill chuck | |
| CN108971536A (en) | Keyless drill chuck, the method for keyless drill chuck Double-directional rotary and drill kind tool | |
| EP1779948A1 (en) | A manual self-locking drill chuck | |
| CN109940200A (en) | The method of arrangement of clutch, drill chuck, power tool and drill chuck Double-directional rotary | |
| CN208662858U (en) | Keyless drill chuck and drill kind tool | |
| CN109365849A (en) | The method of switching device, drill chuck and drill chuck Double-directional rotary | |
| CN108838415A (en) | Keyless drill chuck, the method for keyless drill chuck Double-directional rotary and drill kind tool | |
| CN201091927Y (en) | Self-locking hand-holding drill chuck | |
| CN203061937U (en) | Drill chuck | |
| CN102294497A (en) | Combination type self-clamping and key-clamping drill chuck | |
| EP1914031B1 (en) | Fastener with nutating gear reduction | |
| CN103264374B (en) | Build work drill bit and straight shank drill one permutation lock bench drill chuck | |
| CN203956168U (en) | A kind of Anti-loosedrill chuck | |
| CN106180777B (en) | Stopping device and the keyless drill chuck with stopping device | |
| KR20160107953A (en) | Electrically Driven Turret System and Method for Working the System | |
| CN201493496U (en) | Hand tight drill chuck | |
| CN106536986B (en) | Feeding structure body and the gripping device for having the feeding structure body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181211 |
|
| WW01 | Invention patent application withdrawn after publication |