CN101837576A - Automatic electric screw driver head dismantling device - Google Patents

Automatic electric screw driver head dismantling device Download PDF

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Publication number
CN101837576A
CN101837576A CN 201010205362 CN201010205362A CN101837576A CN 101837576 A CN101837576 A CN 101837576A CN 201010205362 CN201010205362 CN 201010205362 CN 201010205362 A CN201010205362 A CN 201010205362A CN 101837576 A CN101837576 A CN 101837576A
Authority
CN
China
Prior art keywords
cutter head
moveable cap
transmission shaft
screw driver
power transmission
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.)
Pending
Application number
CN 201010205362
Other languages
Chinese (zh)
Inventor
张辉
Original Assignee
张辉
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 张辉 filed Critical 张辉
Priority to CN 201010205362 priority Critical patent/CN101837576A/en
Publication of CN101837576A publication Critical patent/CN101837576A/en
Pending legal-status Critical Current

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Abstract

The invention relates to an automatic electric screw driver head dismantling device, comprising a screw driver head and a screw driver head dismantling component, wherein the screw driver head dismantling component comprises a transmission shaft, a movable cap gasket, a movable cap, a movable cap spring and a slide retainer, the transmission shaft which rotatablely works is in a hollow shaft structure, slide retainer holes which are communicated with the inside and the outside are arranged on the outer wall of the transmission shaft, the slide retainer is assembled in the slide retainer holes, a clamping internal wall and an unlocking internal wall which have different apertures and stepped connected sections are formed in the cavity of the movable cap, and a clamping groove is arranged along the periphery of the shaft body of the screw driver head. When changing the screw driver head, the movable cap is pressed inwards, so the outer end of the slide retainer slides from the clamping internal wall to the unlocking internal wall, as a result, the inner end of the slide retainer is retracted into the slide retainer holes, and thereby the screw driver head can be smoothly pulled out from the transmission shaft. Consequently, the automatic electric screw driver head dismantling device of the invention has the characteristics of ingenious, compact and small structure, simple use and convenient dismantling.

Description

The automatic attaching/detaching apparatus of a kind of cutter head of electric screw driver
Technical field
The present invention relates to the electric tool technical field, refer in particular to a kind of automatic attaching/detaching apparatus of cutter head of electric screw driver.
Background technology
The cutter head of existing screwdriver more changing device mostly is applied on the manual screw cutter, and its structure is cutter head fluting often, and the screw blade adopts a fixture block to be inserted in the fluting of cutter head and locatees.But along with constantly weeding out the old and bring forth the new of sci-tech product, the syndeton of more products need adopt the screw of various different sizes to connect.Electric screw driver adopts the driven by motor cutter head to rotate trip bolt, time saving and energy saving, efficient and reliability are all very high, on the electronic product assembly line, obtained using widely, in order to deal with the screw of different size, need to change different cutter heads, owing to ceaselessly rotating during the work of the power transmission shaft of electric screw driver, existing cutter head more changing device is just very difficult and complicated, and how designing a kind of cutter head replacing problem simple in structure, reliable, that use again cutter head attaching/detaching apparatus easily to solve electric screw driver becomes problem to be solved is arranged.
Summary of the invention
Purpose of the present invention is exactly at the deficiencies in the prior art part and provide provides a kind of novel structure compactness small and exquisite, uses the automatic attaching/detaching apparatus of cutter head of simple electric screw driver.
For achieving the above object, technical scheme of the present invention is: the automatic attaching/detaching apparatus of a kind of cutter head of electric screw driver, include: the cutter head and the cutter head dismounting assembly that is used for the dismounting cutter head that are positioned at the electric screw driver front portion, described cutter head dismounting assembly includes power transmission shaft, the moveable cap packing ring, moveable cap, the moveable cap spring, positioning bead, the power transmission shaft of rotary work is a quill shaft shape structure, the moveable cap gasket sleeve be located on the power transmission shaft and with the power transmission shaft axial restraint, the moveable cap spring housing is located on the power transmission shaft and an end of moveable cap spring is pressed on the moveable cap packing ring, and the moveable cap that both ends open is tubular construction is movably set on the power transmission shaft and the other end that is located at the moveable cap spring is supported in a side end face of moveable cap; The hole of bead, location that is interlinked to the outside on the outer wall of power transmission shaft, offering, positioning bead is installed in this hole of bead, location, form the section that differs in the aperture at the inner chamber of moveable cap and be clamping inwall and the release inwall that stairstepping links to each other, the axle body upper edge circumference of cutter head has the clamping groove, behind the assembling cutter head, cutter head is plugged in the power transmission shaft inner chamber radially fixing, conflicts on the clamping inwall of moveable cap in the outer end of positioning bead, and the inner of positioning bead is passed the hole of bead, location and is fastened in the clamping groove on the cutter head; When the dismounting cutter head, after moveable cap activity compression cap spring moves axially, conflict on the release inwall of moveable cap in the outer end of positioning bead, is convenient to cutter head in the hole of bead, inner indentation location of positioning bead and takes out from power transmission shaft.
Described cutter head dismounting assembly also includes the moveable cap back-up ring that prevents that moveable cap from coming off, have embedded groove in the end of power transmission shaft, the moveable cap back-up ring be fastened in this embedded groove and the external diameter of moveable cap back-up ring bigger than described release inwall aperture, the moveable cap outermost outside inwall aperture corresponding with the moveable cap back-up ring is greater than the external diameter of moveable cap back-up ring.
The loop configuration that have breach of described moveable cap back-up ring for ease of installing.
The hole of bead, described location is that diameter is a bit larger tham the through hole of positioning bead and the interior side opening in the hole of bead, location is shed to the power transmission shaft inner chamber less than the positioning bead diameter to prevent positioning bead.
Described moveable cap packing ring supports and is located in the step-like screens of movable axis.
Described moveable cap is made by metal material.
Described positioning bead is a steel ball.
After adopting said structure, when electric screw driver of the present invention need be changed cutter head, only need moveable cap is inwardly pressed, overcome the elastic force of moveable cap spring, make the outer end of positioning bead slide into the release inwall by the clamping inwall, like this, the inner of positioning bead with regard to indentation the hole of bead, location, thereby can successfully cutter head be extracted out from power transmission shaft; After changing cutter head, moveable cap is return under the elastic force effect of moveable cap spring, makes the outer end of positioning bead slide into the clamping inwall by the release inwall, and the inner of positioning bead is fastened in the clamping groove of cutter head axially fixing.
Because the inner of cutter head can be radially fixing with power transmission shaft, therefore, cutter head disassembly and assembly structure of the present invention does not influence the power transmission shaft belt blade head and is rotated work.Hence one can see that, and it is small and exquisite that electric screw jet blade attaching/detaching apparatus of the present invention has the novel structure compactness, uses characteristics simple, easy accessibility.
Description of drawings
Fig. 1 is the three-dimensional exploded view of the automatic attaching/detaching apparatus of cutter head of electric screw driver of the present invention.
Sectional structure chart when Fig. 2 assembles for the automatic attaching/detaching apparatus of the cutter head of electric screw driver of the present invention.
Sectional structure chart when Fig. 3 dismantles for the automatic attaching/detaching apparatus of the cutter head of electric screw driver of the present invention.
Fig. 4 is the moveable cap sectional structure chart of the automatic attaching/detaching apparatus of cutter head of electric screw driver of the present invention.
Fig. 5 is the power transmission shaft sectional structure chart of the automatic attaching/detaching apparatus of cutter head of electric screw driver of the present invention.
The specific embodiment
Shown in Fig. 1-5, the present invention includes: the cutter head 10 and the cutter head dismounting assembly that is used for the dismounting cutter head that are positioned at the electric screw driver front portion, described cutter head dismounting assembly includes power transmission shaft 20, moveable cap packing ring 30, moveable cap 40, moveable cap spring 50, positioning bead 60, the power transmission shaft 20 of rotary work is a quill shaft shape structure, moveable cap packing ring 30 be set on the power transmission shaft 20 and with power transmission shaft 20 axial restraints, moveable cap spring 50 is set on the power transmission shaft 20 and an end of moveable cap spring 50 is pressed on the moveable cap packing ring 30, and the moveable cap 40 that both ends open is tubular construction is movably set on the power transmission shaft 20 and the other end that is located at moveable cap spring 50 is supported in a side end face of moveable cap 40; The hole of bead, location 21 that is interlinked to the outside on the outer wall of power transmission shaft 20, offering, positioning bead 60 is installed in this hole of bead, location 21, form the section that differs in the aperture at the inner chamber of moveable cap 40 and be clamping inwall 41 and the release inwall 42 that stairstepping links to each other, the axle body upper edge circumference of cutter head 10 has clamping groove 11, behind the assembling cutter head 10, cutter head 10 is plugged in power transmission shaft 20 inner chambers radially fixing, conflict on the clamping inwall 41 of moveable cap 40 in the outer end of positioning bead 60, the inner of positioning bead 60 is passed the hole of bead 21, location and is fastened in the clamping groove 11 on the cutter head 10; When dismounting cutter head 10, after moveable cap 40 activity compression cap springs 50 move axially, conflict on the release inwall 42 of moveable cap 40 in the outer end of positioning bead 60, is convenient to cutter head 10 in the hole of bead 21, inner indentation location of positioning bead 60 and takes out from power transmission shaft 20.
Described cutter head dismounting assembly also includes the moveable cap back-up ring 70 that prevents that moveable cap from coming off, have embedded groove 22 in the end of power transmission shaft, moveable cap back-up ring 70 be fastened in this embedded groove 22 and external diameters of moveable cap back-up ring 70 bigger than described release inwall 42 apertures, corresponding outside inwall 43 apertures of moveable cap 40 outermost and moveable cap back-up ring 70 are greater than the external diameter of moveable cap back-up ring 70.
The loop configuration that have breach of described moveable cap back-up ring 70 for ease of installing.
The hole of bead 21, described location is a bit larger tham the through hole of positioning bead 60 for diameter and the interior side opening 211 in the hole of bead 21, location is shed to power transmission shaft 20 inner chambers less than positioning bead 60 diameters to prevent positioning bead 60.
Described moveable cap packing ring 30 supports and is located in the step-like screens 23 of movable axis 20.
Described moveable cap 40 is made by metal material.
Described positioning bead 60 is a steel ball.
During use, when electric screw driver of the present invention need be changed cutter head 10, with hand moveable cap 40 is pressed moveable cap spring 50, overcome the elastic force of moveable cap spring 50, slide vertically, at this moment, the outer end of positioning bead 60 slides into release inwall 42 by clamping inwall 41, because release inwall 42 apertures are bigger than clamping inwall 41 apertures, when extracting cutter head 10, the part pressurized that is connected to clamping groove 11 that positioning bead 60 stretches out and indentation in the hole of bead, location 21, thereby can successfully cutter head 10 be extracted out from power transmission shaft 20, change cutter head 10 then, after loosing one's grip, moveable cap 40 is return under the elastic force effect of moveable cap spring 50, makes the outer end of positioning bead 60 slide into clamping inwall 41 by release inwall 42, and the inner of positioning bead 60 is fastened in the clamping groove 11 of cutter head 10 axially fixing.Because the inner of cutter head 10 can be radially fixing with power transmission shaft 20, therefore, cutter head 10 disassembly and assembly structures of the present invention do not influence power transmission shaft 20 belt blade heads 10 and are rotated work.Wherein, the hole of bead, location 21 structures on the power transmission shaft 20 are to locate the interior side opening 211 in the hole of bead 21 less than positioning bead 60 diameters, and like this, after taking out cutter head 10, the positioning beads 60 in the hole of bead, location 21 also can not drop in the inner chamber of power transmission shaft 20; In addition, moveable cap back-up ring 70 is stuck in the edge of moveable cap 40 release inwalls 42, can prevent that moveable cap 40 from separating with power transmission shaft 20 under the effect of moveable cap spring 50; During assembling, adopt the moveable cap back-up ring 70 of notched loop configuration can conveniently be set in the embedded groove 22 of end of power transmission shaft 20.
Hence one can see that, and it is small and exquisite that electric screw jet blade attaching/detaching apparatus of the present invention has the novel structure compactness, uses characteristics simple, easy accessibility.

Claims (7)

1. the automatic attaching/detaching apparatus of the cutter head of an electric screw driver, include: the cutter head and the cutter head dismounting assembly that is used for the dismounting cutter head that are positioned at the electric screw driver front portion, it is characterized in that: described cutter head dismounting assembly includes power transmission shaft, the moveable cap packing ring, moveable cap, the moveable cap spring, positioning bead, the power transmission shaft of rotary work is a quill shaft shape structure, the moveable cap gasket sleeve be located on the power transmission shaft and with the power transmission shaft axial restraint, the moveable cap spring housing is located on the power transmission shaft and an end of moveable cap spring is pressed on the moveable cap packing ring, and the moveable cap that both ends open is tubular construction is movably set on the power transmission shaft and the other end that is located at the moveable cap spring is supported in a side end face of moveable cap; The hole of bead, location that is interlinked to the outside on the outer wall of power transmission shaft, offering, positioning bead is installed in this hole of bead, location, form the section that differs in the aperture at the inner chamber of moveable cap and be clamping inwall and the release inwall that stairstepping links to each other, the axle body upper edge circumference of cutter head has the clamping groove, behind the assembling cutter head, cutter head is plugged in the power transmission shaft inner chamber radially fixing, conflicts on the clamping inwall of moveable cap in the outer end of positioning bead, and the inner of positioning bead is passed the hole of bead, location and is fastened in the clamping groove on the cutter head; When the dismounting cutter head, after moveable cap activity compression cap spring moves axially, conflict on the release inwall of moveable cap in the outer end of positioning bead, is convenient to cutter head in the hole of bead, inner indentation location of positioning bead and takes out from power transmission shaft.
2. the automatic attaching/detaching apparatus of the cutter head of a kind of electric screw driver according to claim 1, it is characterized in that: described cutter head dismounting assembly also includes the moveable cap back-up ring that prevents that moveable cap from coming off, have embedded groove in the end of power transmission shaft, the moveable cap back-up ring be fastened in this embedded groove and the external diameter of moveable cap back-up ring bigger than described release inwall aperture, the moveable cap outermost outside inwall aperture corresponding with the moveable cap back-up ring is greater than the external diameter of moveable cap back-up ring.
3. the automatic attaching/detaching apparatus of the cutter head of a kind of electric screw driver according to claim 2 is characterized in that: the loop configuration that have breach of described moveable cap back-up ring for ease of installing.
4. the automatic attaching/detaching apparatus of the cutter head of a kind of electric screw driver according to claim 1 is characterized in that: the hole of bead, described location is that diameter is a bit larger tham the through hole of positioning bead and the interior side opening in the hole of bead, location is shed to the power transmission shaft inner chamber less than the positioning bead diameter to prevent positioning bead.
5. the automatic attaching/detaching apparatus of the cutter head of a kind of electric screw driver according to claim 1 is characterized in that: described moveable cap packing ring supports and is located in the step-like screens of movable axis.
6. the automatic attaching/detaching apparatus of the cutter head of a kind of electric screw driver according to claim 1, it is characterized in that: described moveable cap is made by metal material.
7. the automatic attaching/detaching apparatus of the cutter head of a kind of electric screw driver according to claim 1, it is characterized in that: described positioning bead is a steel ball.
CN 201010205362 2010-06-22 2010-06-22 Automatic electric screw driver head dismantling device Pending CN101837576A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010205362 CN101837576A (en) 2010-06-22 2010-06-22 Automatic electric screw driver head dismantling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010205362 CN101837576A (en) 2010-06-22 2010-06-22 Automatic electric screw driver head dismantling device

Publications (1)

Publication Number Publication Date
CN101837576A true CN101837576A (en) 2010-09-22

Family

ID=42741364

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201010205362 Pending CN101837576A (en) 2010-06-22 2010-06-22 Automatic electric screw driver head dismantling device

Country Status (1)

Country Link
CN (1) CN101837576A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104015165A (en) * 2014-06-24 2014-09-03 上海鸿辉光通科技股份有限公司 Assembling cutter bit used for assembling FC (fiber channel) type movable connector
CN108890567A (en) * 2018-09-18 2018-11-27 深圳市深丝微智能技术有限公司 A kind of handheld-type intelligent servo-electric screwdriver
CN111571271A (en) * 2020-05-28 2020-08-25 徐勤彬 Structure is changed to aluminum alloy numerical control processing tool bit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4900202A (en) * 1988-09-08 1990-02-13 Wienhold James L Chuck assembly for tool bits
US6199872B1 (en) * 1999-08-13 2001-03-13 Maxtech Consumer Products, L.L.C. Quick-release mechanism for screwdriver bits and the like
WO2005058548A2 (en) * 2003-12-11 2005-06-30 Jore Corporation Adjustable screwdriver
CN200998854Y (en) * 2007-01-09 2008-01-02 包哲尧 Locking mechanism for pneumatic screwdriver tool head
CN201175888Y (en) * 2008-01-02 2009-01-07 徐志明 Split type screwdriver and handle thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4900202A (en) * 1988-09-08 1990-02-13 Wienhold James L Chuck assembly for tool bits
US6199872B1 (en) * 1999-08-13 2001-03-13 Maxtech Consumer Products, L.L.C. Quick-release mechanism for screwdriver bits and the like
WO2005058548A2 (en) * 2003-12-11 2005-06-30 Jore Corporation Adjustable screwdriver
CN200998854Y (en) * 2007-01-09 2008-01-02 包哲尧 Locking mechanism for pneumatic screwdriver tool head
CN201175888Y (en) * 2008-01-02 2009-01-07 徐志明 Split type screwdriver and handle thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104015165A (en) * 2014-06-24 2014-09-03 上海鸿辉光通科技股份有限公司 Assembling cutter bit used for assembling FC (fiber channel) type movable connector
CN108890567A (en) * 2018-09-18 2018-11-27 深圳市深丝微智能技术有限公司 A kind of handheld-type intelligent servo-electric screwdriver
CN111571271A (en) * 2020-05-28 2020-08-25 徐勤彬 Structure is changed to aluminum alloy numerical control processing tool bit

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WD01 Invention patent application deemed withdrawn after publication

Open date: 20100922