CN103538033A - Holding device - Google Patents
Holding device Download PDFInfo
- Publication number
- CN103538033A CN103538033A CN201210236058.7A CN201210236058A CN103538033A CN 103538033 A CN103538033 A CN 103538033A CN 201210236058 A CN201210236058 A CN 201210236058A CN 103538033 A CN103538033 A CN 103538033A
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- China
- Prior art keywords
- main shaft
- clamping device
- accepting
- leg
- tool heads
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Abstract
The invention provides a holding device for containing and holding an externally-inserted tool head. The holding device comprises a main shaft extending in the axial direction, a containing hole, a control piece, an elastic piece, a containing groove and a locking piece, wherein a hexagonal handle portion is arranged at the first end of the main shaft, the containing hole is formed in the second end of the main shaft and used for containing the tool head, the control piece is movably arranged on the main shaft, the elastic piece is arranged between the control piece and the main shaft, the containing groove is formed in the radial direction of the main shaft and communicated with the containing hole, the locking piece is arranged in the containing groove, the containing hole is a circular hole, the control piece can be operated to control the locking piece to move between a first position and a second position in the radial direction of the containing groove, when the control piece moves to the first position, the locking piece locks the tool head and the main shaft so that the torque from the main shaft can be delivered by the tool head, and when the control piece moves to the second position, the locking piece releases the tool head. The holding device is simple in structure and convenient to operate.
Description
Technical field
The present invention relates to a kind of annex of hand held electric tool, especially a kind of tool heads clamping device.
Background technology
Common many merits drilling tool has the functions such as brill, screwdriver, impact wrench in the market, before selection difference in functionality carries out work, the working head of corresponding function and applicable working condition requirement first will be installed on instrument, as drill bit, screwdriver bit, sleeve.Conventionally multi-functional drill is provided with the chuck with hexagonal hole, for clamping the drill bit with six side's shanks, screwdriver bit and sleeve.Yet, the circular staight shank that on market, modal drill bit all adopts, if being installed on to this multi-functional drill, the drill bit of circular staight shank carries out boring work, must be by means of an adapter, that is to say with this adapter one end and be arranged to connect with the hexagonal hole of chuck six side's shanks with transmitting torque, the other end is arranged to clamp the drill chuck with circular straight shank drill, could by adapter, be delivered to the drill bit with circular staight shank by being provided with rotatablely moving that hexagonal hole chuck passes out like this.The drill chuck of this adaptor adopts three-jaw drill chuck conventionally, and the complex structure of three-jaw drill chuck, manufacturing cost is high, and it is cumbersome that while user operates when drill bit is installed, and to client, brings inconvenience.
Summary of the invention
For overcoming the deficiencies in the prior art, the invention provides a kind of simple in structure, easy to operate clamping device.
For achieving the above object, technical scheme of the present invention is: a kind of clamping device, for accommodating and clamp the outside tool heads of inserting, comprising: axially extended main shaft, and the first end of main shaft arranges six side's shanks; Be arranged at main shaft the second end for accommodating the accepting hole of tool heads; Be arranged at actively the control piece of main shaft; Be arranged at the elastic component between control piece and main shaft; Along main shaft diameter to the accepting groove that arranges and connect with accepting hole; And the locking member that is arranged at accepting groove; Described accepting hole is set to circular port, described control piece is operationally controlled locking member and radially between primary importance and the second place, is moved along accepting groove, thereby locking member makes tool heads transmission from the moment of torsion of main shaft tool heads and principal shaft locking during primary importance, latch fitting part releasing tool head during the second place.
Preferably, accepting hole has the openend for receiving tool head, and the blind hole end that openend arranges relatively.
Preferably, the quantity of accepting groove be two and two accepting grooves along main shaft diameter to being symmetrical arranged, in two accepting grooves, be respectively arranged with locking member, described locking member is steel ball.
Preferably, control piece is the annular lock tube that is sheathed on main shaft periphery, and the relative main shaft of described annular lock tube moves axially.
Tool heads arranges the tight lock part with locking member engagement.Preferably, tool heads is spiral bit, the chip area that described tight lock part is spiral bit.
Another kind of real revolving in mode, main shaft further comprises and is arranged at the countersunk drilling that the second end exceeds described control piece vertically.Countersunk drilling comprises the leg circumferentially arranging around described accepting hole and is arranged at the cutting edge on leg.The internal diameter of leg is consistent with accepting hole diameter, and the external diameter of described leg is greater than accepting hole diameter.
Preferably, leg extends 3/4ths circumference around accepting hole central axis.Leg is formed with breach on circumferencial direction, and the both sides of breach have respectively breach face, and cutting edge lies along on the breach face in main shaft direction of rotation vertically.
Compared with prior art, clamping device of the present invention is owing to arranging that the engaging piece of the circular staight shank of circular accepting hole and cooperation is locked and for the tight lock part of transmitting torque, therefore clamping device can clamp the tool heads with circular staight shank, clamping device is simple in structure, cost is low, and easy to operate.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the front view of first embodiment of the invention clamping device.
Fig. 2 is that in Fig. 1, clamping device sheds tool heads amplification view afterwards.
Fig. 3 is the three-dimensional exploded view of clamping device in Fig. 1.
Fig. 4 is by the cutaway view of A-A direction in Fig. 1.
Fig. 5 is by the cutaway view of B-B direction in Fig. 4.
Fig. 6 is the lock tube of clamping device in Fig. 1 cross-sectional schematic when release conditions.
Fig. 7 is the cross-sectional schematic of tool heads when removing state in clamping device in Fig. 6.
Fig. 8 is the schematic perspective view of second embodiment of the invention clamping device.
Fig. 9 is the three-dimensional exploded view of clamping device in Fig. 8.
Figure 10 is clamping device front view in Fig. 8.
Figure 11 is the cutaway view of the main apparent direction of clamping device in Fig. 8.
Wherein:
10,10 '-clamping device 126-the first locating part 150-breach
Protruding wall 150a-breach face inside 11-main shaft 127-
111-six side's shank 128-the second locating part 151-cutting edges
112-groove 13-stage clip 16-leg
12-lock tube 130-chip area 16a-first
120-opening 131-step 16b-second portion
122-accepting hole 132-arc surface 20-tool heads
122a-blind hole end 134-arc surface 20a-rounded handle
124-accepting groove 15-countersunk drilling 20b-bit head
125-steel ball
The specific embodiment
Referring to shown in Fig. 1 to Fig. 3, clamping device 10 comprises axially extended main shaft 11, and the movable control piece 12 arranging of main shaft 11, is arranged at the elastic component between control piece 12 and main shaft 11 relatively.Control piece in the present embodiment is to be sheathed on main shaft 11 annular lock tube 12 peripheral and that main shaft 11 slides relatively, and elastic component adopts stage clip 13, and elastic component can adopt other elastic device to replace certainly.
With reference to Fig. 2, Fig. 3, main shaft 11 has two ends, and wherein first end is arranged to six side's shanks 111, and the cross section of this six sides shank 111 is regular hexagon, six side's shanks 111 are extended with a segment distance vertically, and the groove 112 radially arranging in the suitable position setting of its bearing of trend.The effect that groove 112 is set on six side's shanks 111 is when the chuck (not shown) of clamping device 10 and electric tool connects, thereby the groove 112 of six side's shanks 111 can with chuck in locking piece engagement main shaft 11 is positioned in this chuck, six side's shanks 111 are for coordinating with transmitting torque with the hexagonal hole (not shown) of accommodating the chuck of this main shaft 11.The peripheral surface of the second end of main shaft 11 is arranged to circle and is had the opening 120 receiving from outside insertion tool head 20, by opening 120, extend vertically a segment distance and form the accepting hole 122 of accommodating tool heads 20, accepting hole 122 is arranged to blind hole end 122a in one end of relative opening 120, accepting hole 122 is circular port, for accommodating the tool heads 20 with rounded handle.On main shaft 11, the position of corresponding lock tube 12 radially only illustrates one over against being provided with in a pair of accepting groove 124(Fig. 3).Accepting groove 124 connects and contains latch fitting part with accepting hole 122 respectively, and the locking member in this example adopts steel ball 125.Lock tube 12 is positioned at the position corresponding with steel ball 125 positions.On main shaft 11, be fixedly installed the first locating part 126 and the second locating part 128, the first locating part 126 is arranged near opening 120, spacing for the slip of lock tube 12 relative main shafts 11 is carried out, stage clip 13 one end are against the second locating part 128, and the other end is against the inwall of lock tube 12.
Shown in Fig. 4, Fig. 5, tool heads 20 is contained in accepting hole 122, the tool heads 20 of the present embodiment is spiral bit, the end of spiral bit is arranged to rounded handle 20a and is extended a segment distance and accepting hole 122 connects, and the bit head 20b of fluted drill has the two symmetrically arranged spirality chip areas 130 in road.When spiral bit is accommodated and be held on this clamping device 10, steel ball 125 is engaged in respectively in chip area 130, now lock tube 12 is held in its locked position under the active force of stage clip 13, inwall 127 and steel ball 125 butts at this locked position lock tube 13, that is to say that steel ball 125 is not radially having movable space, thereby spiral bit and main shaft 11 lockings are integrated, thereby make can spiral bit can be with main shaft 11 rotations, clamping device 11 is transmitting the moment of torsion of being exported by electric tool and will rotatablely move and is being passed to spiral bit and carries out boring work.Certainly the locking member of this example is not limited to steel ball 125, also can replace with the locking member that other has similar functions and function.
With further reference to Fig. 4, Fig. 6, lock tube 12 is slided along arrow direction indication P in Fig. 6, now stage clip 13 one end are subject to lock tube 12 active forces and are compressed, when lock tube 12 slides into off-position, the protruding wall 127 in inner side of lock tube 12 is thrown off the butt with steel ball 125, that is to say, steel ball 125 radially outwards has certain activity space in accepting groove 124, now impose on first export-oriented active force of transfering to of fluted drill, steel ball 125 radially outward moves along accepting groove 124 under the effect of rounded handle 20a, when steel ball 125 shifts out accepting hole 120, spiral bit just can be transferred to like a cork from accepting hole 120.
With reference to Fig. 7, when needs are installed on clamping device 10 by spiral bit, first press in Fig. 6 arrow direction indication P sliding lock set 12 to off-position, make protruding wall 127 disengagements in inner side of lock tube 12 and the butt of steel ball 125, now the rounded handle 20a of spiral bit is inserted to accepting hole 122 from opening 120, when steel ball 125 touches rounded handle 20a and be subject to active force that rounded handle 20a promotes to accepting hole 122, steel ball 125 can radially outward move to accepting hole 120 outsides in accepting groove 124, like this, spiral bit just can easily insert in accepting hole 120 until spiral bit rounded handle 20a and blind hole end 122a butt, then unclamp lock tube 12 it is replied, spiral bit 20 just completes installation like this.Certainly, spiral bit 20 after installation might not lock onto in clamping device 10, because steel ball 125 likely also not exclusively meshes with chip area 130, but with spiral bit 10, contact workpiece as long as start when electric tool switch makes clamping device 10 drive spiral bit 10 rotation, thereby spiral bit can automatically turn over an angle is engaged in chip area 130 steel ball 125, lock tube 12 automatically locks steel ball 125 and the position of engagement of chip area 130 under the effect of stage clip 13.
With reference to Fig. 8, Fig. 9, the clamping device 10 of the clamping device 10 ' of the second embodiment of the present invention and the first embodiment has similar structures, and therefore identical structure represents not do to repeat with same numbering.The first end of main shaft 11 ' is that six side's shank 111, the second ends are provided with countersunk drilling 15, and the object that countersunk drilling 15 is set is further at the afterbody in hole, to form counter sink (not shown) after spiral bit pierces certain depth on workpiece.Countersunk drilling 15 extends axially and exceeds lock tube 12 along main shaft 11, countersunk drilling 15 has the leg 16 circumferentially arranging around accepting hole 120, the internal diameter of leg 16 and accepting hole 120 diameters are basically identical, the external diameter of leg 16 is greater than accepting hole 120 diameters, the external diameter of leg 16 is to set according to the size of required counter sink, simultaneously the degree of depth that extends axially length decision counter sink of leg 16.
With further reference to Figure 10, Figure 11, the leg 16 of the present embodiment countersunk drilling 15 comprises the 16a of first and second portion 16b, wherein the 16a of first is different with the external diameter of second portion 16b, the 16a of leg first is near accepting groove 124, leg second portion 16b is away from accepting groove 124, the 16a of leg first external diameter is greater than leg second portion 16b external diameter, and leg 16 forms step 131 in the one end near lock tube 13, and this step 131 further slides to countersunk drilling 15 for limiting lock tube 13.The 16a of leg first and the sudden change of second portion 16b external diameter form joint face, and this joint face is arranged to arc surface 132 and is made progress to leg 16 first's spiral extensions in week.The top of leg second portion 16b is formed on equally and makes progress to the arc surface 134 of leg 16 first's spiral extensions in week.Arc surface 132 is different from arc surface 134 width, but is parallel to each other on bearing of trend.Leg 16 extends roughly 3/4ths circumference around accepting hole 120 centers, leg 16 is formed with breach 150 on circumference bearing of trend, breach 150 both sides have respectively breach face 150a, the cutting edge 151 of countersunk drilling 15 is arranged on one of them breach face 150a, this breach face 150a is the windward side in main shaft 11 direction of rotation, and cutting edge 151 extends axially along countersunk drilling 15.Leg 16 and cutting edge 151 so arrange, and the resistance that must hole in its direction of rotation at countersunk drilling 15 is minimum, and drilling efficiency is the highest.
The tool heads of clamping device clamping of the present invention is not limited to spiral bit, as long as tool heads one end has rounded handle, and in rounded handle relevant position, has the tight lock part that compresses engagement with lock, just can be suitable for clamping device of the present invention.
Claims (12)
1. a clamping device, for accommodating and clamp the outside tool heads of inserting, comprising:
Axially extended main shaft, the first end of main shaft arranges six side's shanks;
Be arranged at main shaft the second end for accommodating the accepting hole of tool heads;
Be arranged at actively the control piece of main shaft;
Be arranged at the elastic component between control piece and main shaft;
Along main shaft diameter to the accepting groove that arranges and connect with accepting hole;
And the locking member that is arranged at accepting groove;
It is characterized in that: described accepting hole is set to circular port, described control piece is operationally controlled locking member and radially between primary importance and the second place, is moved along accepting groove, during primary importance, thereby locking member makes tool heads transmission from the moment of torsion of main shaft tool heads and principal shaft locking, and during the second place, locking member has been removed the locking to tool heads.
2. clamping device according to claim 1, is characterized in that: described accepting hole has the openend for receiving tool head, and the blind hole end that openend arranges relatively.
3. clamping device according to claim 1, is characterized in that: the quantity of described accepting groove be two and two accepting grooves along main shaft diameter to being symmetrical arranged, in two accepting grooves, be respectively arranged with locking member.
4. clamping device according to claim 3, is characterized in that: described locking member is steel ball.
5. clamping device according to claim 1, is characterized in that: described control piece is the annular lock tube that is sheathed on main shaft periphery, and the relative main shaft of described annular lock tube moves axially.
6. clamping device according to claim 1, is characterized in that: described tool heads has the tight lock part with locking member engagement.
7. clamping device according to claim 6, is characterized in that: described tool heads is spiral bit, the chip area that described tight lock part is spiral bit.
8. according to the clamping device described in claim 1 to 7 any one, it is characterized in that: described main shaft further comprises and is arranged at the countersunk drilling that the second end exceeds described control piece vertically.
9. clamping device according to claim 8, is characterized in that: described countersunk drilling comprises the leg circumferentially arranging around described accepting hole and is arranged at the cutting edge on leg.
10. clamping device according to claim 9, is characterized in that: the internal diameter of described leg is consistent with accepting hole diameter, and the external diameter of described leg is greater than accepting hole diameter.
11. clamping devices according to claim 9, is characterized in that: described leg extends 3/4ths circumference around the central axis of accepting hole.
12. clamping devices according to claim 11, is characterized in that: described leg is formed with breach on bearing of trend, and the both sides of breach have respectively breach face, and cutting edge lies along on the breach face in main shaft direction of rotation vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210236058.7A CN103538033B (en) | 2012-07-10 | 2012-07-10 | Clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210236058.7A CN103538033B (en) | 2012-07-10 | 2012-07-10 | Clamping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103538033A true CN103538033A (en) | 2014-01-29 |
| CN103538033B CN103538033B (en) | 2015-12-16 |
Family
ID=49962082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210236058.7A Active CN103538033B (en) | 2012-07-10 | 2012-07-10 | Clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103538033B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108890271A (en) * | 2018-08-20 | 2018-11-27 | 厦门攸信信息技术有限公司 | A kind of locking device and torsion device |
| CN109719346A (en) * | 2019-02-28 | 2019-05-07 | 长安大学 | A kind of clamping device and work tooling of flexible job |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4290617A (en) * | 1979-06-11 | 1981-09-22 | The Boeing Company | Motor quick-change chuck system for tool having cylindrically shaped adapter portion wherein relative longitudinal movement between chuck and tool being driven is eliminated |
| CN2059113U (en) * | 1989-11-01 | 1990-07-11 | 邢明喜 | Adjustable clamping tool central hole combined drill |
| CN2182699Y (en) * | 1993-09-06 | 1994-11-16 | 毛庆兰 | Assembling type compositing drilling machine with axle position adjustable function |
| US5398946A (en) * | 1993-12-29 | 1995-03-21 | Poly-Tech Industries | Chuck having one-step lock and release |
| DE19634707A1 (en) * | 1996-08-28 | 1998-03-05 | Klaus Pemoeller | Drill bit for screw drilling machines |
| CN2642470Y (en) * | 2003-07-29 | 2004-09-22 | 北京精微气动工具厂 | Quick change device with strong clamping force in electrical tools |
| CN101530928A (en) * | 2008-03-14 | 2009-09-16 | 上海典智贸易有限公司 | Chuck structure |
-
2012
- 2012-07-10 CN CN201210236058.7A patent/CN103538033B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4290617A (en) * | 1979-06-11 | 1981-09-22 | The Boeing Company | Motor quick-change chuck system for tool having cylindrically shaped adapter portion wherein relative longitudinal movement between chuck and tool being driven is eliminated |
| CN2059113U (en) * | 1989-11-01 | 1990-07-11 | 邢明喜 | Adjustable clamping tool central hole combined drill |
| CN2182699Y (en) * | 1993-09-06 | 1994-11-16 | 毛庆兰 | Assembling type compositing drilling machine with axle position adjustable function |
| US5398946A (en) * | 1993-12-29 | 1995-03-21 | Poly-Tech Industries | Chuck having one-step lock and release |
| DE19634707A1 (en) * | 1996-08-28 | 1998-03-05 | Klaus Pemoeller | Drill bit for screw drilling machines |
| CN2642470Y (en) * | 2003-07-29 | 2004-09-22 | 北京精微气动工具厂 | Quick change device with strong clamping force in electrical tools |
| CN101530928A (en) * | 2008-03-14 | 2009-09-16 | 上海典智贸易有限公司 | Chuck structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108890271A (en) * | 2018-08-20 | 2018-11-27 | 厦门攸信信息技术有限公司 | A kind of locking device and torsion device |
| CN109719346A (en) * | 2019-02-28 | 2019-05-07 | 长安大学 | A kind of clamping device and work tooling of flexible job |
| CN109719346B (en) * | 2019-02-28 | 2020-05-12 | 长安大学 | Flexible operation clamping mechanism and operation tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103538033B (en) | 2015-12-16 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191101 Address after: 215600 No.9 Haixin Road, Nanfeng Town, Zhangjiagang City, Jiangsu Province Co-patentee after: POSITEC POWER TOOLS (SUZHOU) Co.,Ltd. Patentee after: POSITEC MACHINERY (ZHANGJIAGANG) CO.,LTD. Address before: 215123 Jiangsu Province, Suzhou City Industrial Park East Road, No. 18 Patentee before: POSITEC POWER TOOLS (SUZHOU) Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230719 Address after: Factory buildings 4 # and 7 #, No. 59 Shuangjing Street, Weiting Town, Suzhou Industrial Park, Jiangsu Province, 215123 Patentee after: POSITEC POWER TOOLS (SUZHOU) Co.,Ltd. Address before: No. 9, Haixin Road, Nanfeng Town, Zhangjiagang City, Jiangsu Province 215600 Patentee before: POSITEC MACHINERY (ZHANGJIAGANG) CO.,LTD. Patentee before: POSITEC POWER TOOLS (SUZHOU) Co.,Ltd. |
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| TR01 | Transfer of patent right |