CN111065489A - Power tool - Google Patents
Power tool Download PDFInfo
- Publication number
- CN111065489A CN111065489A CN201880054233.6A CN201880054233A CN111065489A CN 111065489 A CN111065489 A CN 111065489A CN 201880054233 A CN201880054233 A CN 201880054233A CN 111065489 A CN111065489 A CN 111065489A
- Authority
- CN
- China
- Prior art keywords
- power tool
- light emitting
- signal
- emitting device
- type
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
-
- 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
- B25B23/18—Devices for illuminating the head of the screw or the nut
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention relates to a power tool (10) comprising a light emitting arrangement (20) arranged to illuminate a threaded joint on an object to be assembled. The power tool is operated to search for a signal indicative of the position of the power tool in relation to a plurality of threaded engagements on the object to be assembled. And providing a first type of light signal from the light emitting device if the signal indicates that the power tool is positioned in relation to the next threaded engagement to be tightened, and providing a second type of light signal if the signal indicates that the power tool is positioned in another location.
Description
Technical Field
The invention relates to a power tool and a tightening monitoring system for a power tool.
Background
A problem associated with prior art power tool applications is that the operator sometimes mistakenly believes he/she has correctly tightened all threaded joints on the object, and may in fact mistakenly leave the threaded joints untreated or make the tightening of the threaded joints unsatisfactory. This may have a serious negative impact on the functionality and/or durability of the objects or structures assembled by the threaded joint.
Another problem inherent in prior art assembly operations is to let the operator know in which order the threaded joints should be tightened on the assembled objects in order to obtain acceptable quality. And to avoid the threaded joint being left untreated during operation. This may result in incomplete assembly.
To avoid such problems, prior art fastening monitoring systems have some sort of display or warning light provided on a separate process control unit to warn the operator of the fact that certain threaded joints are incorrectly untreated or the fastening is unsatisfactory. To find out which threaded joint is not correctly tightened, the operator must move the power tool over the object while looking at a display screen or warning light on the process control unit to see which of the threaded joint positions generated the alarm signal. This method of error tracking is very awkward and can result in unnecessarily prolonged assembly. The operator must remember which threaded joint he or she will next tighten to obtain the desired assembly result.
Disclosure of Invention
The object of the present invention is to ensure a high and acceptable quality of the assembly process by providing a simple and time-saving power tool.
According to a first aspect of the invention, this object is achieved by a power tool comprising a light emitting arrangement arranged to illuminate a threaded engagement on an object to be assembled. The power tool is operated to search for a signal indicative of the position of the power tool in relation to a plurality of threaded engagements on the object to be assembled. And providing a first type of light signal from the light emitting device if the signal indicates that the power tool is positioned in relation to the next threaded engagement to be tightened, and providing a second type of light signal if the signal indicates that the power tool is positioned in another location.
Therefore, the tightening order of the screw engagement portions is clearly indicated, and an operator is quickly and easily informed during the assembly process which of the screw engagement portions is not processed in the correct order or is not correctly tightened. The faulty joint or joints can then be corrected to complete the assembly process, thereby ensuring the quality of the assembled object.
Drawings
Fig. 1 shows a view of a power tool according to an exemplary embodiment of the present invention.
Detailed Description
Fig. 1 shows a power tool 10 according to an exemplary embodiment of the present invention. The power tool 10 comprises an elongated tubular housing 12, said tubular housing 12 being intended to be used as a handle for manually guiding the screwdriver 10, and an output shaft 13, said output shaft 13 extending coaxially with the housing 12.
The power tool 10 is intended for screwing a plurality of threaded joints onto an object to be assembled. The threaded joints are located at different positions on the object and may be tightened in a sequence in order to obtain the desired clamping load on the various parts of the object.
The power tool 10 comprises a light emitting means 20 at its front, which light emitting means 20 is arranged to illuminate the threaded engagement. The power tool 10 is operative to search for a signal indicative of the location of the power tool 10 in relation to a plurality of threaded engagements on an object to be assembled. The power tool 10 is further operable to provide a first type of light signal from the light emitting device 20 if the signal indicates that the power tool 10 is positioned in relation to the next threaded engagement to be tightened, and to provide a second type of light signal if the signal indicates that the power tool 10 is positioned in another location.
In order to obtain quick and easily understood information during the assembly process regarding which threaded joint to tighten next, or which threaded joint is not processed or is improperly tightened, the power tool 10 is operated to provide a first type of light signal from the light emitting device 20 if the signal indicates that the power tool 10 is positioned with respect to the threaded joint to tighten next, and a second type of light signal if the signal indicates that the power tool 10 is positioned in another location.
In an exemplary embodiment, a signal is received from a power tool controller (not shown). In another exemplary embodiment, a signal is received from a process control unit. The signal may be received via a cable connecting the power tool 10 to a power tool controller or process control unit. In another embodiment, the signal is received wirelessly. In yet another exemplary embodiment, the signal is generated by the power tool 10 itself. The power tool 10 may be positioned in a number of different ways. How the power tool 10 is positioned is not essential to the invention and will not be described in detail.
In an exemplary embodiment, the power tool 10 is associated with the next threaded engagement to be tightened means proximate to the next threaded engagement to be tightened. In another exemplary embodiment, the power tool 10 being associated with the next threaded engagement to be tightened means that the power tool 10 is positioned directly above the next threaded engagement to be tightened.
In another exemplary embodiment, the association of the power tool 10 further comprises the power tool 10 being attached to a threaded engagement. In yet another exemplary embodiment, the power tool 10 being attached includes the power tool 10 exerting a correct axial force on the threaded engagement.
In another exemplary embodiment of the power tool 10, the first type of light signal is a first color and the second type of light signal is another color.
In another exemplary embodiment of the power tool 10, the power tool is further arranged to provide a third signal if the power tool fulfils a further condition (e.g. the power tool is positioned perpendicular to the objects to be assembled and/or the power tool 10 exerts the correct axial force on the threaded engagement).
According to one example of the power tool 10, the light emitting device 20 is an LED (light emitting diode) arranged to emit both a first color and another color.
Another aspect of the invention relates to a tightening monitoring system comprising a power tool 10 according to any of the above-described exemplary embodiments. The tightening monitoring system also includes a position system operative to determine the position of the power tool 10 in relation to a plurality of threaded engagements on the object to be assembled.
In an exemplary embodiment, the power tool 10 is connected to a stationary structure via a reaction support while allowing the power tool 10 to move freely. And the position system includes a sensor disposed on the reaction support to provide a signal indicative of the position of the power tool 10. In an exemplary embodiment, the pivot on the arm of the reaction support is provided with an angle sensor, which is connected to a position system. In another exemplary embodiment, the tightening monitoring system comprises a process control unit connected to the position system and operative to determine a next threaded engagement to be tightened.
In an exemplary embodiment, the process control unit is programmed with the number and respective coordinates of the threaded engagement of the object and calculates the actual position of the power tool 10 by using the position system. By comparing the calculated actual position of the screwdriver 10 with the screw joint coordinates it is possible to determine which screw joint the screwdriver 10 is currently handling and whether the screwdriver 10 has handled all screw joints on the object. The processing and control unit then generates a signal indicative of the position of the power tool 10 in relation to the plurality of threaded joints on the object to be assembled.
In an exemplary embodiment, the control unit may also be programmed with data by which the threaded joints should be tightened, and generate a signal if there is a deviation between the programmed data and the data actually experienced by each threaded joint during tightening. The signal is then received by the power tool 10, the power tool 10 being operative to provide a third type of light signal from the light emitting device 20. This third type of light signal from the light emitting device 20 makes the operator aware that a tightening error has occurred.
The process control unit may also be configured such that the signal indicates that the power tool 10 is unable to tighten the threaded engagement. When the signal indicates that an error has been detected, the operator need only move the screwdriver 10 over the assembled object and this type of light signal from the light emitting device 20 will inform the operator that the power tool 10 is not able to tighten the threaded engagement.
The process control unit may also be configured to generate a signal indicating when all joints of the workpiece have been correctly tightened. The signal may also indicate when a desired target (e.g., a target torque) for the joint has been reached, or whether the desired target has not been met. When all of the joints have been properly placed, a signal may indicate this.
The present disclosure also relates to a method performed in a power tool 10, the power tool 10 comprising a light emitting device 20 arranged to illuminate a threaded engagement on an object to be assembled.
In a first step, the power tool 10 searches for a signal indicating the location of the power tool 10 in relation to a plurality of threaded joints on the object to be assembled. In a next step, the electric pulse tool 10 provides a first type of light signal from the light emitting device 20 in case the signal indicates that the power tool 10 is positioned in connection with the next threaded joint to be tightened, and a second type of light signal in case the signal indicates that the power tool 10 is in another position.
According to an exemplary embodiment of the method, the light emitting device 20 is arranged at the front of the power tool 10. In another exemplary embodiment of the method, the light emitting device 20 further comprises another light emitting device in another portion of the power tool 10.
According to another exemplary embodiment, the first type of light signal is a first color and the second type of light signal is another color. According to another exemplary embodiment, the light emitting means 20 is an LED (light emitting diode) arranged to emit both a first color and another color.
The present disclosure also relates to a computer-readable storage medium, on which a computer program is stored which, when run in the power tool 10, causes the power tool 10 to carry out the method as described above.
According to an exemplary embodiment, the above-mentioned computer program code, when run in a processor (not shown) of the power tool 10, causes the power tool 10 to perform the method as described above.
Claims (17)
1. A power tool (10) comprising a light emitting device (20), the light emitting device (20) being arranged to illuminate a threaded engagement on an object to be assembled, whereby the power tool (10) is operative to:
-searching for a signal indicative of the position of the power tool (10) in relation to a plurality of threaded joints on the object to be assembled;
-providing a first type of light signal from the light emitting means (20) if the signal indicates that the power tool (10) is positioned in relation to the next threaded engagement to be tightened, and providing a second type of light signal if the signal indicates that the power tool (10) is positioned in another position.
2. The power tool (10) according to claim 1, wherein the light emitting device (20) is arranged at a front portion of the power tool (10).
3. The power tool (10) according to claim 2, wherein the light emitting device (20) further comprises another light emitting device in another portion of the power tool (10).
4. The power tool (10) according to any one of claims 1 to 3, wherein the correlation further comprises the power tool (10) being attached to the threaded engagement portion.
5. The power tool (10) according to claim 4, wherein the power tool (10) being attached comprises the power tool (10) exerting a correct axial force on the threaded engagement.
6. The power tool (10) according to any one of claims 1 to 5, the power tool (10) further being arranged to provide a third signal if the power tool fulfils a further condition, such as the power tool being positioned perpendicular to the object to be assembled and/or the power tool (10) exerting a correct axial force on the threaded engagement.
7. The power tool (10) according to any one of claims 1 to 6, wherein the first type of light signal is a first color and the second type of light signal is another color.
8. The power tool (10) according to claim 7, wherein the light emitting arrangement (20) is an LED, a light emitting diode, arranged to emit both a first color and another color.
9. A tightening monitoring system comprising the power tool (10) according to any one of claims 1 to 5, the tightening monitoring system further comprising a position system operative to determine a position of the power tool (10) in relation to a plurality of threaded engagements on an object to be assembled.
10. The tightening monitoring system according to claim 6, further comprising a process control unit connected to the position system and operative to determine a next threaded engagement to be tightened.
11. The tightening monitoring system according to any one of claims 6 or 7, wherein the power tool (10) is connected to a fixed structure via a reaction support and allows the power tool (10) to move freely, and the position system comprises a sensor provided on the reaction support to provide a signal indicative of the position of the power tool (10).
12. A method in a power tool (10), the power tool (10) comprising a light emitting arrangement (20) arranged to illuminate a threaded engagement on an object to be assembled, the method comprising the steps of:
-searching for a signal indicative of the position of the power tool (10) in relation to a plurality of threaded joints on the object to be assembled;
-providing a first type of light signal from the light emitting means (20) if the signal indicates that the power tool (10) is positioned in relation to the next threaded engagement to be tightened, and providing a second type of light signal if the signal indicates that the power tool (10) is positioned in another position.
13. The method according to claim 12, wherein the light emitting device (20) is arranged at the front of the power tool (10).
14. The method of claim 13, wherein the light emitting device (20) further comprises another light emitting device located in another portion of the power tool (10).
15. The method of any of claims 12-14, wherein the first type of light signal is a first color and the second type of light signal is another color.
16. The method according to claim 15, wherein the light emitting device (20) is a LED, i.e. a light emitting diode, arranged to emit both the first color and the further color.
17. A computer-readable storage medium, on which a computer program is stored which, when run in a power tool (10), causes the power tool (10) to carry out the method according to any one of claims 12 to 16.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1730248-0 | 2017-09-13 | ||
| SE1730248 | 2017-09-13 | ||
| PCT/EP2018/074161 WO2019052920A1 (en) | 2017-09-13 | 2018-09-07 | A power tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111065489A true CN111065489A (en) | 2020-04-24 |
Family
ID=63556321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880054233.6A Pending CN111065489A (en) | 2017-09-13 | 2018-09-07 | Power tool |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3681677B1 (en) |
| CN (1) | CN111065489A (en) |
| WO (1) | WO2019052920A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020254354A2 (en) * | 2019-06-20 | 2020-12-24 | Atlas Copco Industrial Technique Ab | Portable socket holder for sockets or bits connecteable to a power tool |
| EP3986671B1 (en) * | 2019-06-20 | 2024-02-28 | Atlas Copco Industrial Technique AB | Portable socket holder for sockets or bits connecteable to a power tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890635A (en) * | 2010-06-28 | 2010-11-24 | 三一电气有限责任公司 | Bolt tightening machine for connecting slewing bearing and hub |
| GB201021627D0 (en) * | 2010-12-21 | 2011-02-02 | Crane Electronics | Torque tool positioning system |
| JP2011131330A (en) * | 2009-12-24 | 2011-07-07 | Nitto Seiko Co Ltd | Screw fastening machine |
| CN104209740A (en) * | 2014-08-29 | 2014-12-17 | 宁波富乐礼机器人科技有限公司 | Automatic screw positioning and tightening structure |
| CN105575064A (en) * | 2015-12-29 | 2016-05-11 | 重庆依凯科技有限公司 | Device for preventing wrong screwing and control method |
| WO2016120125A1 (en) * | 2015-01-27 | 2016-08-04 | cATLAS COPCO INDUSTRIAL TECHNIQUE AB | A tightening supervising system for a power screw driver |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8700202B2 (en) * | 2010-11-30 | 2014-04-15 | Trimble Navigation Limited | System for positioning a tool in a work space |
-
2018
- 2018-09-07 EP EP18768845.2A patent/EP3681677B1/en active Active
- 2018-09-07 CN CN201880054233.6A patent/CN111065489A/en active Pending
- 2018-09-07 WO PCT/EP2018/074161 patent/WO2019052920A1/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011131330A (en) * | 2009-12-24 | 2011-07-07 | Nitto Seiko Co Ltd | Screw fastening machine |
| CN101890635A (en) * | 2010-06-28 | 2010-11-24 | 三一电气有限责任公司 | Bolt tightening machine for connecting slewing bearing and hub |
| GB201021627D0 (en) * | 2010-12-21 | 2011-02-02 | Crane Electronics | Torque tool positioning system |
| CN104209740A (en) * | 2014-08-29 | 2014-12-17 | 宁波富乐礼机器人科技有限公司 | Automatic screw positioning and tightening structure |
| WO2016120125A1 (en) * | 2015-01-27 | 2016-08-04 | cATLAS COPCO INDUSTRIAL TECHNIQUE AB | A tightening supervising system for a power screw driver |
| CN105575064A (en) * | 2015-12-29 | 2016-05-11 | 重庆依凯科技有限公司 | Device for preventing wrong screwing and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3681677B1 (en) | 2024-05-15 |
| EP3681677A1 (en) | 2020-07-22 |
| WO2019052920A1 (en) | 2019-03-21 |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200424 |
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| WD01 | Invention patent application deemed withdrawn after publication |