CN101939142B - Device for a power screw driver and power screw driver - Google Patents
Device for a power screw driver and power screw driver Download PDFInfo
- Publication number
- CN101939142B CN101939142B CN200980104133.0A CN200980104133A CN101939142B CN 101939142 B CN101939142 B CN 101939142B CN 200980104133 A CN200980104133 A CN 200980104133A CN 101939142 B CN101939142 B CN 101939142B
- Authority
- CN
- China
- Prior art keywords
- suction device
- bellmouth
- injector assembly
- shell
- screw driver
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/02—Arrangements for handling screws or nuts
- B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/005—Vacuum work holders
- B25B11/007—Vacuum work holders portable, e.g. handheld
Abstract
A device (3) for creating a negative pressure inside a screw holding mouthpiece (4) of a power screw driver (1), including an ejector assembly (15, 16, 17, 18) having a negative pressure chamber (16) which is arranged to be connected to the mouthpiece (4). The device (3) is comprised of an integral unit which includes the ejector assembly (15, 16, 17, 18) and, on an extreme end side (8), is provided with the mouthpiece (4), and is adapted to adjoin to a casing (2) of said power screw driver (1). The invention also concerns a power screw driver.
Description
Technical field
The present invention relates to a kind of device of preamble according to claim 1.The invention still further relates to a kind of powered screwdriver of preamble according to claim 11.
Background technology
Provide a kind of pneumatic screw driver from known GB 20 68 284 before, this pneumatic screw driver has and screw is being carried out pick up screw to its device that keeps by suction before fastening.Rear portion at this screw tool shell is provided with injector assembly, and this injector assembly can be handled by button.The low-pressure pipeline is in this injector assembly and location and keep extending between sleeve pipe, this location and keep sleeve pipe to being positioned by the activation point that this instrument carries out fastening screw.
Be the high and baroque scheme of a kind of cost according to the instrument of GB 20 68 284, this is because it need to carry out special process operation,, carries out special process operation with respect to this tool housing that is.For the startup of getter action, need to handle this instrument at Background Region, there is larger distance in the drive end of this Background Region and screw.Thereby such arranging need to be handled at this Background Region in the process of operation tool.
Summary of the invention
The objective of the invention is to solve the problem in background technology, in order to reduce at least in part relevant shortcoming.
This purpose realizes by the feature of claim 1.
Be integral unit in this creative sprayer unit that provides, it has advantages of and is suitable for being adjoined to the powered screwdriver housing.Therefore, this injector assembly is adjacent to the position of using negative pressure and arranges, thereby has avoided due to the long loss that causes of pipeline.
When described integral unit had shell, this device can be as for example with respect to the special module of conventional tool, and this shell has be used to the coupling part that is connected to described housing, and this conventional tool has the lower house part of this creationary injection unit of exchange.
Because described unit comprises bellmouth and injector assembly, so tool interior or the housing that needn't be attached to for special process operation cover these elements.
The consumption of pressurized air is minimized when described device comprises when starting/closing the startup gauge tap of this device, the consumption of energy is minimized.Can also reduce the noise in operating process.
Preferably, start gauge tap control and flow into the pressurized air of this device, in order to realize above-mentioned advantage fully, even throttling is carried out in outflow, negative pressure is also possible.
Preferably, this device construction is at least a portion that is used for operator's handle.Thereby, start gauge tap and be advantageously provided and touch for its finger (or thumb) or hand that can be held this handle.Therefore, can only utilize a hand just to use, control and handle whole powered screwdriver, this is favourable compared to existing technology.
Preferably, described bellmouth is for receiving the load of spring in known mode own from this device along outward direction.
When the axis of the hole of the injector assembly that is used for enclosure be vertical, and, can realize very thin structure, and need not unnecessary outstanding element when extending substantially parallel with the axis (with connection status) of powered screwdriver (and bellmouth).
This device preferably has the outlet for the pressurized air of passing injector assembly.This outlet be preferably have silencer, diffuser or analog.
The invention still further relates to powered screwdriver, it comprises according to the above-mentioned device for generation of negative pressure.Preferably, this powered screwdriver is pneumatic screw driver, thereby preferably, form is that the power supply device that is used for the pressurized air of power screw is used for the operation injector assembly.The normal pressure level can be in the scope of (infinite) 4-8 bar (bar).
The below will illustrate more feature and advantage of the present invention in specifically described mode.
Description of drawings
The below will more specifically describe the present invention under the background of embodiment and with reference to appended accompanying drawing, wherein:
Fig. 1 has schematically shown the powered screwdriver that has for generation of the device of negative pressure,
Fig. 2 has shown the axial cross section that passes the powered screwdriver in Fig. 1,
Fig. 3 has shown the device for generation of negative pressure, and this device separates with the housing of the powered screwdriver of Fig. 2 in the first cross section, and
Fig. 4 has shown the device of the Fig. 3 in another longitudinal cross-section.
The specific embodiment
In Fig. 1, Reference numeral 1 expression powered screwdriver particularly has the powered screwdriver 1 of Pneumatic rotary motor in housing 2 inside.Device 3 for generation of negative pressure is connected on housing 2, device 3 has shell 3 ' and form integral unit, this integral unit has screw and keeps bellmouth 4 at its extreme 8 places, and has at opposition side 9 places the device that is connected to housing 2 by the interface shown in 7.
Be used for making the outlet of pressurized air separating device 3 by 10 expressions.This outlet can be attached with the (not shown)s such as muffler diffuser.
In the illustrated embodiment, the axis A-A of housing 2 is oriented to parallel with the axis B-B that installs 3 side direction protuberance.
The axial cross section that has shown powered screwdriver 1 in Fig. 2 wherein in housing 2 inside, is provided with air motor 11, transmission device 12 and torque limited shutdown device 13 as usually.These devices are not part of the present invention, therefore will repeat no more at this.
Be provided with for injector assembly 15,16,17, the first main aperture hole 28 of 18 in shell 3 ' inside and be used for screw terminal 25 assemblies and be used for being connected to the second main aperture hole 29 of housing 2.These holes interconnect by hole 19, hole 19 and described main aperture hole axis angulation separately.
According to known mode itself, described injector assembly comprises the pressurized air entrance 14 that is arranged in the downstream, the startup control button 5 that is arranged on coupling part 30.The further downstream part of this injector assembly in hole 29 is provided with flow at high speed nozzle 15, and flow at high speed nozzle 15 can be for example Delaval nozzle or any other more simple tubular structure.
16 expression negative pressure chambers, wherein as itself is known before, negative pressure will be to flow through the gas of nozzle 15 and the result that produces.
The outlet conduit member of the pressurized air that 23 expressions are used for using, this outlet conduit member has been implemented injection action.
Passage between 17 expression negative pressure chambers 16 and end chambers 18, end chambers 18 is communicated with air-breathing chamber 20 by hole 19, and air-breathing chamber 20 extends into again bellmouth 4 inside.
24 expressions are used for the annular seating of screw, and this screw will be held by bellmouth 4 when this device of operation.
21 expression springs, this spring along away from the direction of shell 3 to bellmouth 4 application of forces.
22 expression sealing rings, sealing ring from the top of shell 3 and driven force screwdriver inside seal air-breathing chamber 20.
Fig. 3 and 4 has shown the chlamydate described device of tool with different cross section, and it separates with housing 2.In Fig. 3, " gases used " outlet 10 represents from outlet chamber 26 inside.
Shown conduit 17 as above in Fig. 4.In addition, button 5 is shown as to have and blocks the part of passing that enters the obstruction part 31 of air and allow to enter Air Flow.Space 33 is used for accommodating the spring (not shown), and this spring is used for button push to blocked state.
The adjusting of negative pressure can realize by different way.A kind of method is to provide can regulate the entrance air throttle, and another kind of method is in the catheter pressure (not shown), pressure regulator to be set.
In the operation of described device, the operator starts suction in bellmouth by pressing button for generation of negative pressure, suck up the screw on pigeonholes for example, this instrument that will have screw in the bellmouth seat is pressed into to be envisioned on the position, envision on the position at this, bellmouth is extruded in shell, and motor starts, and is connected with the screw terminal that joins screw to.
Can revise the present invention in the scope of claims.Do not get rid of this unit and the housing part that forms as one, even this structure and not preferred.Start button is arranged in the scope that the hand that grips this instrument can touch, and such scheme is highly preferred, and other scheme that provides still is not provided.
Preferably, supply install and CD-ROM drive motor by general pressurized air conduit, but other scheme also is fine, the pressurized air conduit of varying level for example is provided for indivedual consumers.
This device is intended to the screw for all size, is M2-M5 yet its most probable is used for the size range of the screw of this screwdriver.
This shell is preferably by aluminum or aluminum alloy to be made.Do not get rid of and to use even synthetic material of other metal.
Claims (13)
1. a suction device (3), be used for keeping the inner negative pressure that produces of bellmouth (4) at the screw of powered screwdriver (1), described suction device (3) comprises the injector assembly (15,16,17,18) with negative pressure chamber (16), this negative pressure chamber (16) is set to be connected to described bellmouth (4), it is characterized in that
-described suction device (3) comprises integral unit, and described integral unit comprises described injector assembly (15,16,17,18), and has described bellmouth (4) on extreme side (8), and
-be positioned at the housing (2) that described integral unit on the opposition side of described extreme side (8) is suitable for being adjoined to described powered screwdriver (1).
2. suction device according to claim 1, is characterized in that
-described integral unit comprises shell (3 '), and described shell (3 ') has be used to the coupling part that is connected to described housing (2) (26).
3. suction device according to claim 2, is characterized in that
-it comprises be used to the startup gauge tap (5) that starts/close described suction device.
4. suction device according to claim 3, is characterized in that
-described startup gauge tap (5) is handled by a kind of device in following group: control button, control handle, control handle, control wheel.
5. suction device according to claim 3, is characterized in that
-described shell (3 ') is formed at least a portion of operator's handle.
6. suction device according to claim 5, is characterized in that
-described startup gauge tap (5) is set to be positioned at the hand that grips described handle and points the scope that can touch.
7. suction device according to claim 2, is characterized in that
-described bellmouth (4) can lead vertically movably with respect to described shell (3 '), and this bellmouth (4) is along be subject to the load of spring (21) from the outside direction of described shell (3 ').
8. suction device according to claim 2, is characterized in that
-described shell (3 ') has the hole (28) for described injector assembly (15,16,17,18), described hole (28) has longitudinal extension, wherein under the state that has connected, the basic axis (A-A) with described bellmouth (4) and described screwdriver (1) of axis (B-B) extends abreast.
9. suction device according to claim 2, is characterized in that
-described shell (3 ') has air-breathing chamber (20), described air-breathing chamber (20) under confined state around screw terminal (25), and described air-breathing chamber (20) extends to the inside of described bellmouth (4), described air-breathing chamber (20) is connected to described injector assembly (15,16,17,18) by hole (19), under the state that has connected, axis (A-A) angulation of described hole (19) and described bellmouth (4) and described screwdriver (1).
10. suction device according to claim 2, is characterized in that
-it has outlet (10), and described outlet (10) is used for having passed the pressurized air of described injector assembly (15,16,17,18).
11. a powered screwdriver (1) that is used for holding screw comprises being positioned at the inner rotation motor (11) of housing (2), it is characterized in that
-it comprises according to claim 1-10 the described suction device of any one (3).
12. powered screwdriver according to claim 11 (1) is characterized in that
It is a kind of of following group: pneumatic screw driver, electric screw driver.
13. powered screwdriver according to claim 12 (1), wherein it is pneumatic screw driver, it is characterized in that
-this pneumatic screw driver comprises fexible unit (6), and described fexible unit (6) is used for pressurized air is fed to described injector assembly (15,16,17,18) and is fed to described rotation motor (11).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0800278A SE532118C2 (en) | 2008-02-06 | 2008-02-06 | Device for a screwdriver and screwdriver |
| SE0800278-4 | 2008-02-06 | ||
| PCT/SE2009/000067 WO2009099376A1 (en) | 2008-02-06 | 2009-02-04 | Device for a power screw driver and power screw driver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101939142A CN101939142A (en) | 2011-01-05 |
| CN101939142B true CN101939142B (en) | 2013-06-05 |
Family
ID=40952349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980104133.0A Expired - Fee Related CN101939142B (en) | 2008-02-06 | 2009-02-04 | Device for a power screw driver and power screw driver |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101939142B (en) |
| SE (1) | SE532118C2 (en) |
| WO (1) | WO2009099376A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5513964B2 (en) * | 2010-04-19 | 2014-06-04 | 株式会社大武ルート工業 | Automatic screw tightening device |
| EP3077158B1 (en) * | 2013-11-08 | 2020-04-22 | Atlas Copco Industrial Technique AB | Vacuum adapter for a power tool |
| SE539415C2 (en) * | 2014-12-11 | 2017-09-19 | Atlas Copco Ind Technique Ab | Screw driver with vacuum screw pick-up feature |
| WO2020002271A1 (en) * | 2018-06-29 | 2020-01-02 | Atlas Copco Industrial Technique Ab | A power screw driver |
| JP7391628B2 (en) * | 2019-11-22 | 2023-12-05 | ファナック株式会社 | nut runner device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1339657A (en) * | 1971-11-05 | 1973-12-05 | Desoutter Brothers Ltd | Pneumatic screwdriver or like rotary tool |
| SU1127760A1 (en) * | 1983-02-09 | 1984-12-07 | Рижское Производственное Объединение Вэф Им.В.И.Ленина | Screw driver tool with vacuum gripper |
| CN1095327A (en) * | 1993-02-26 | 1994-11-23 | 克雷斯电气电动马达有限公司 | The switching device that is used for electric tool |
| JP2000158354A (en) * | 1998-11-20 | 2000-06-13 | Katsuro Sawamura | Machine screw automatic mounting device for screwdriver |
| CN1597262A (en) * | 2003-09-19 | 2005-03-23 | 日立工机株式会社 | Pneumatically operated screw driver |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10156741A (en) * | 1996-12-04 | 1998-06-16 | Kato Seiki Kk | Screw sucking and holding device of power driver |
| JP2002046075A (en) * | 2000-08-01 | 2002-02-12 | Sumitomo Metal Steel Products Inc | Chip suction device for electric driver |
-
2008
- 2008-02-06 SE SE0800278A patent/SE532118C2/en not_active IP Right Cessation
-
2009
- 2009-02-04 WO PCT/SE2009/000067 patent/WO2009099376A1/en active Application Filing
- 2009-02-04 CN CN200980104133.0A patent/CN101939142B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1339657A (en) * | 1971-11-05 | 1973-12-05 | Desoutter Brothers Ltd | Pneumatic screwdriver or like rotary tool |
| SU1127760A1 (en) * | 1983-02-09 | 1984-12-07 | Рижское Производственное Объединение Вэф Им.В.И.Ленина | Screw driver tool with vacuum gripper |
| CN1095327A (en) * | 1993-02-26 | 1994-11-23 | 克雷斯电气电动马达有限公司 | The switching device that is used for electric tool |
| JP2000158354A (en) * | 1998-11-20 | 2000-06-13 | Katsuro Sawamura | Machine screw automatic mounting device for screwdriver |
| CN1597262A (en) * | 2003-09-19 | 2005-03-23 | 日立工机株式会社 | Pneumatically operated screw driver |
Also Published As
| Publication number | Publication date |
|---|---|
| SE0800278L (en) | 2009-08-07 |
| SE532118C2 (en) | 2009-10-27 |
| WO2009099376A1 (en) | 2009-08-13 |
| CN101939142A (en) | 2011-01-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101939142B (en) | Device for a power screw driver and power screw driver | |
| US6598390B2 (en) | Easily controlled exhaust pipe | |
| WO2017056833A1 (en) | Evaporated fuel processing device | |
| US9828953B2 (en) | Evacuator system having multi-port evacuator | |
| WO2010075393A3 (en) | Gas turbine engine and system for servicing a gas turbine engine | |
| MY155865A (en) | A fan | |
| WO2006088714A3 (en) | Flow development and cogeneration chamber | |
| KR20170102868A (en) | Crankcase ventilating evacuator | |
| EP3227548B1 (en) | Evacuator system for supplying high suction vacuum or high suction flow rate | |
| US8353361B2 (en) | Pneumatic tool | |
| EP1902914A3 (en) | Nozzle for a windscreen wiper assembly | |
| US5954481A (en) | Jet pump | |
| ATE452288T1 (en) | ARRANGEMENT IN A FUEL INJECTION DEVICE | |
| EP1297905A3 (en) | Steam cleaning appliance | |
| CN105041514B (en) | The method that active purge system module and operation have the internal combustion engine of the module | |
| EP1947344A3 (en) | Air supply system for a vehicle | |
| CN107605626A (en) | Air inlet pipeline assembly for air cleaner | |
| WO2009014654A3 (en) | Coal burner assembly | |
| CN100564096C (en) | Apparatus for regulating vehicle fuel tank pressure | |
| EP1321639A3 (en) | Silencer arrangement | |
| WO2016121190A1 (en) | Supercharger | |
| CN102398583A (en) | Brake assistor for electric automobile | |
| CN203022929U (en) | Fan ejection device of air inlet system of automobile engine | |
| TW200724781A (en) | Fuel injection system and the injection valve | |
| JP4393810B2 (en) | Evaporative fuel processing equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Stockholm Applicant after: Atlas Copco Tools AB Address before: Stockholm Applicant before: Atlas Copco Tools AB |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: ATLAS COPCO TOOLS AB TO: ATLAS COPCO INDUSTRIAL TECHNOLOGY AB |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20210204 |