CN101939142A - 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
- CN101939142A CN101939142A CN2009801041330A CN200980104133A CN101939142A CN 101939142 A CN101939142 A CN 101939142A CN 2009801041330 A CN2009801041330 A CN 2009801041330A CN 200980104133 A CN200980104133 A CN 200980104133A CN 101939142 A CN101939142 A CN 101939142A
- Authority
- CN
- China
- Prior art keywords
- bellmouth
- shell
- injector assembly
- screwdriver
- 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.)
- Granted
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Jet Pumps And Other Pumps (AREA)
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 according to the preamble of claim 1.The invention still further relates to a kind of powered screwdriver according to the preamble of 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 the sleeve pipe, this location and keep sleeve pipe to being positioned by the activation point that this instrument carries out fastening screw.
Instrument according to GB 20 68 284 is the high and baroque scheme of a kind of cost, and this is because it need 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 handle this instrument at Background Region, there is big distance in the drive end of this Background Region and screw.Thereby such being provided with need 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 the background technology, so that reduce relevant shortcoming at least in part.
This purpose realizes by the feature of claim 1.
In the creative sprayer unit that this provided is integral unit, and it has the advantage that is suitable for being adjoined to the powered screwdriver housing.Therefore, this injector assembly is adjacent to the position of using negative pressure and is provided with, thereby has avoided owing 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 the coupling part that is used to be 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, covers these elements so needn't be attached to the tool interior or the housing that are used for special process operation.
The consumption of pressurized air is minimized when described device comprises when being used to start/close the start-up control switch of this device, the consumption of energy is minimized.Can also reduce the noise in the operating process.
Preferably, the control of start-up control switch flows into the pressurized air of this device, so that realize above-mentioned advantage fully, even throttling is carried out in outflow, negative pressure also is possible.
Preferably, this device construction is at least a portion that is used for operator's handle.Thereby the start-up control switch is advantageously provided to its finger (or thumb) or hand that can be held this handle and touches.Therefore, can only utilize a hand just to use, control and handle whole powered screwdriver, this is favourable compared to existing technology.
Preferably, the load of described bellmouth for receiving spring from this device along outward direction in known mode own.
When the axis of the hole of the injector assembly that is used for enclosure for vertically, and with the axis (with connection status) of powered screwdriver (and bellmouth) when extending substantially parallel, can realize very thin structure, and need not unnecessary outstanding element.
This device preferably has the outlet of the pressurized air that is used for passing injector assembly.This outlet be preferably have silencer, diffuser or analog.
The invention still further relates to powered screwdriver, it comprises the device that produces negative pressure according to above-mentioned being used to.Preferably, this powered screwdriver is a pneumatic screw driver, thereby preferably, form is that the power supply device that is used for the pressurized air of power screw is used to operate injector assembly.The normal pressure level can be in the scope of (infinite) 4-8 crust (bar).
To more feature and advantage of the present invention be described in specifically described mode below.
Description of drawings
To under the background of embodiment and with reference to appended accompanying drawing, the present invention be described more specifically below, wherein:
Fig. 1 has schematically shown the powered screwdriver with the device that is used to produce negative pressure,
Fig. 2 has shown the axial cross section that passes the powered screwdriver among Fig. 1,
Fig. 3 has shown the device that is used to produce negative pressure, and this device separates with the housing of the powered screwdriver of Fig. 2 in 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 rotation motor in housing 2 inside.The device 3 that is used to produce negative pressure is connected to 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 the device that is connected to housing 2 by the interface shown in 7 at opposition side 9 places.
Be used to make the outlet of pressurized air separating device 3 by 10 expressions.This outlet can add (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 and closes stop device 13 as usually.These devices are not part of the present invention, therefore will repeat no more at this.
Be provided with the first main aperture hole 28 that is used for injector assembly 15,16,17,18 in shell 3 ' inside and be used for screw terminal 25 assemblies and be used to be 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 inlet 14 that is arranged in the downstream, the start-up 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 for example can be Delaval nozzle or any other simple tubular structure more.
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.
23 expressions are used for the outlet conduit member of employed pressurized air, and this outlet conduit member has been implemented injection action.
Passage between 17 expression negative pressure chambers 16 and the end chambers 18, end chambers 18 is communicated with air-breathing chamber 20 by hole 19, and air-breathing chamber 20 extends into bellmouth 4 inside again.
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, the sealing ring seals air-breathing chamber 20 from the top of shell 3 and from powered screwdriver inside.
Fig. 3 and 4 has shown the described device with shell with different cross section, and it separates with housing 2.In Fig. 3, " gases used " outlet 10 is represented from outlet chamber 26 inside.
In Fig. 4, shown aforesaid conduit 17.In addition, button 5 is shown as to have to block and enters the obstruction part 31 of air and to allow to enter the part of passing that air flows.Space 33 is used to accommodate 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 provides can regulate the inlet 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 is by pressing the suction that the button that is used for producing negative pressure starts bellmouth, suck up the screw on pigeonholes for example, this instrument that will have screw in the bellmouth seat is pressed on the anticipation position, on this anticipation position, bellmouth is extruded in the shell, and motor starts, and is connected with the screw terminal that joins screw to.
In the scope of claims, can revise the present invention.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 this device and CD-ROM drive motor, but other scheme is fine also, the pressurized air conduit of varying level for example is provided for indivedual consumers by general pressurized air conduit.
This device is intended to be used for the screw of 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 other metal even synthetic material.
Claims (13)
1. a device (3), be used for keeping the inner negative pressure that produces of bellmouth (4) at the screw of powered screwdriver (1), described 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 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. device according to claim 1 is characterized in that
-described integral unit comprises shell (3 '), and described shell (3 ') has the coupling part (26) that is used to be connected to described housing (2).
3. device according to claim 1 and 2 is characterized in that
-it comprises the start-up control switch (5) that is used to start/close described device.
4. device according to claim 3 is characterized in that
-described start-up control switch (5) is handled by a kind of device in the following group: control button, control handle, control handle, control wheel.
5. according to claim 3 or 4 described devices, it is characterized in that
-described shell (3 ') is formed at least a portion of operator's handle.
6. device according to claim 5 is characterized in that
-described start-up control switch (5) is set to be positioned at the hand that grips described handle and points the scope that can touch.
7. according to any described device of aforementioned claim, it is characterized in that
-described bellmouth (4) can lead vertically movably with respect to described shell (3 '), and this bellmouth (4) is along the load that is subjected to spring (21) from the outside direction of described shell (3 ').
8. according to any described device of the aforementioned claim that is subordinated to claim 2, it is characterized in that
-described shell (3 ') has the hole (28) that is used 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. according to any described device of the aforementioned claim that is subordinated to claim 2, it 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. according to any described device of aforementioned claim, it is characterized in that
-it has outlet (10), and described outlet (10) is used for passing 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 any described device (3) according to claim 1-10.
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 a pneumatic screw driver, it is characterized in that
-it comprises fexible unit (6), 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 |
|---|---|---|---|
| SE0800278-4 | 2008-02-06 | ||
| SE0800278A SE532118C2 (en) | 2008-02-06 | 2008-02-06 | Device for a screwdriver and screwdriver |
| 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 true CN101939142A (en) | 2011-01-05 |
| CN101939142B 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) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105705299A (en) * | 2013-11-08 | 2016-06-22 | 阿特拉斯·科普柯工业技术公司 | Vacuum adapter for a power tool |
| CN107000178A (en) * | 2014-12-11 | 2017-08-01 | 阿特拉斯·科普柯工业技术公司 | The screwdriver of characteristic is picked up with vacuum screw |
| CN112351863A (en) * | 2018-06-29 | 2021-02-09 | 阿特拉斯·科普柯工业技术公司 | Power screwdriver |
| CN112828807A (en) * | 2019-11-22 | 2021-05-25 | 发那科株式会社 | Nut wrench device |
Families Citing this family (1)
| 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 |
Family Cites Families (7)
| 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 |
| DE4305967C2 (en) * | 1993-02-26 | 1997-03-06 | Kress Elektrik Gmbh & Co | Switch device for spindle locking for power tools |
| JPH10156741A (en) * | 1996-12-04 | 1998-06-16 | Kato Seiki Kk | Screw sucking and holding device of power driver |
| JP2000158354A (en) * | 1998-11-20 | 2000-06-13 | Katsuro Sawamura | Machine screw automatic mounting device for screwdriver |
| JP2002046075A (en) * | 2000-08-01 | 2002-02-12 | Sumitomo Metal Steel Products Inc | Chip suction device for electric driver |
| JP4089569B2 (en) * | 2003-09-19 | 2008-05-28 | 日立工機株式会社 | Compressed air screwing machine |
-
2008
- 2008-02-06 SE SE0800278A patent/SE532118C2/en not_active IP Right Cessation
-
2009
- 2009-02-04 CN CN200980104133.0A patent/CN101939142B/en not_active Expired - Fee Related
- 2009-02-04 WO PCT/SE2009/000067 patent/WO2009099376A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105705299A (en) * | 2013-11-08 | 2016-06-22 | 阿特拉斯·科普柯工业技术公司 | Vacuum adapter for a power tool |
| CN107000178A (en) * | 2014-12-11 | 2017-08-01 | 阿特拉斯·科普柯工业技术公司 | The screwdriver of characteristic is picked up with vacuum screw |
| CN107000178B (en) * | 2014-12-11 | 2019-04-23 | 阿特拉斯·科普柯工业技术公司 | The screwdriver of characteristic is picked up with vacuum screw |
| CN112351863A (en) * | 2018-06-29 | 2021-02-09 | 阿特拉斯·科普柯工业技术公司 | Power screwdriver |
| CN112828807A (en) * | 2019-11-22 | 2021-05-25 | 发那科株式会社 | Nut wrench device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009099376A1 (en) | 2009-08-13 |
| CN101939142B (en) | 2013-06-05 |
| SE0800278L (en) | 2009-08-07 |
| SE532118C2 (en) | 2009-10-27 |
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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 for 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 |