CN104483888B - Mistake-proofing system - Google Patents
Mistake-proofing system Download PDFInfo
- Publication number
- CN104483888B CN104483888B CN201410735013.3A CN201410735013A CN104483888B CN 104483888 B CN104483888 B CN 104483888B CN 201410735013 A CN201410735013 A CN 201410735013A CN 104483888 B CN104483888 B CN 104483888B
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- CN
- China
- Prior art keywords
- controller
- rifle
- gas flow
- gun
- signal
- 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.)
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/058—Safety, monitoring
-
- 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
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
- B25B21/004—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose of the ratchet type
- B25B21/005—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose of the ratchet type driven by a radially acting hydraulic or pneumatic piston
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention relates to a mistake-proofing system, and belongs to the technical field of automobile chair installation. The mistake-proofing system comprises a controller, a position switch detection device, a pneumatic gun device and a gas flow detection device, wherein a screwing program corresponding to a plurality of screw bolts on an assembling line and the gun sequence of pneumatic guns used for screwing the screw bolts are preset in the controller, the position switch detection device is used for detecting whether screw bolts to be assembled are positioned on an assembling tooling or not so that the corresponding screwing program can be started, the pneumatic gun device is used for screwing the screw bolts, the gas flow detection device is used for detecting flowing state signals of compressed air of the pneumatic gun device, after once qualified gun shooting, the switch signals on the gas flow detection device can be transmitted to the controller, and the controller counts the number of qualified gun shooting times. The mistake-proofing system has the advantages that the mistake-proofing effect identical to that of an electric torque gun is enabled to be achieved, and in addition, the cost is much lower than that of the electric torque gun.
Description
Technical field
The present invention relates to a kind of fail-safe system that pneumatic gun is tightened, belongs to automotive seat mounting technique field.
Background technology
Aerodynamic moment spanner is widely used in the production of each factory assembling, is mainly used in some torque values in 10NM-
The bolt terminal fastening of 40NM.This pneumatic adjustable wrest fixing spanner has torque precision height (7-10%), and good stability makes
With conveniently, it is easy to safeguard, the features such as moderate.But in modern assembly industry, integrated requirement of the whole system to instrument
More and more higher, needs instrument itself can to carry out effective information transmission and interlocking collaborative work with whole system.Yet with
The reason for this body structure of pneumatic impact spanner, it is clear that this requirement can not be met.This just makes that spiral shell can not be being carried out to aerodynamic moment spanner
State when bolt is fastened effectively is monitored and tracked.Branch company employs pneumatic torque wrench and carries out workpiece in multiple stations
Connection, in use, repeatedly there is bolt no marking, mistake and the quality events such as beat.Other general assembly factories are using aerodynamic moment
During spanner, also all there is situation about being similar to.Because these shortcomings make many factories when tightening tool is purchased, gas is not considered further that
Wrench, is changed to electric torsional control system, so that greatly promote purchase cost.
The content of the invention
The technical problem to be solved is to provide a kind of fail-safe system, for aerodynamic moment spanner it is above-mentioned not
Foot, the aerodynamic moment spanner and whole scene system to using targetedly is analyzed and improved, be allowed to possess and be
The communication function of system collaborative work, can effectively transmit correlation tightens information, under with frock interlocking work, solves bolt leakage
Beat, mistake such as beats at the quality events, greatly improves mistake proofing grade.
In order to solve above-mentioned technical problem, the present invention is adopted the following technical scheme that：
A kind of fail-safe system, it is characterised in that including controller, presets multiple spiral shells on correspondence assembly line in controller
Bolt tightens program and the rifle time for tightening the pneumatic gun of the plurality of bolt；
The position switch detection means being connected with controller control, for detecting bolt to be assembled whether in assembly tooling
On, tighten accordingly program to start；
One detection of gas flow rate device, the detection of gas flow rate device to detect the air flow condition of pneumatic gun,
And by air flow condition signal transmission to controller；
Wherein, after in bolts assemblies frock to be assembled, position switch detection means to controller sends signal, control
Device starts tightens accordingly program；After pneumatic gun is per a rifle has been made, the switching signal on detection of gas flow rate device will can be pressed
Contracting gas flow signals are changed into the normally opened signal or normally closed signal of switch, are then transferred to controller, while controller pairing
Lattice rifle time is counted, and the qualified rifle for being calculated time is compared with the rifle being previously set in controller, when setting rifle
When completely, system sends a qualified signal, unclamps chain frock；It is secondary when rifle is not up to set, it is impossible to remove frock, institute
It is photoswitch that rheme puts closing detecting apparatus, and the detection of gas flow rate device includes air flow chamber, blade, rotating shaft and switch letter
Number, air flow chamber is provided with suction nozzle and outlet nozzle, and air flow chamber is connected to into the pneumatic gun by the suction nozzle and outlet nozzle
Trachea on, the air-flow intracavity places the blade, and blade is connected by the rotating shaft with switching signal, and the controller is
PLC, described controller is connected with alarm device.
Beneficial effects of the present invention：
Using pneumatic torque wrench after the torque value for tightening setting, can be died automatically, even and if now still pressing
The gunlock of spanner is press against, the throughput in trachea is zero this characteristic.System is caught by the trailing edge differential to flow signal
Catch to pour the tight condition of another edition of a book bolt.Then calculated by the bolt of eligible state of the system to having tightened, and be
The rifle for setting of uniting is compared, and when setting rifle time is expired, system can send a qualified signal, the chain work of release
Dress.And when not up to setting rifle, due to assembly tooling and system it is chain, it is impossible to remove frock.If frock is taken in pressure away, it is
System can send warning.
What a kind of fail-safe system of the present invention can effectively transmit correlation tightens information, under the interlocking work with frock, greatly
The big probability of happening for improving mistake proofing grade, significantly reducing no marking accident.
Description of the drawings
Fig. 1 is a kind of system construction drawing of fail-safe system of the invention；
Fig. 2 is the principle schematic diagram. of detection of gas flow rate device；
Wherein, 1, blade；2nd, switch；3rd, into the air of air flow chamber；4th, into the air of pneumatic gun.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate this
Invention rather than restriction the scope of the present invention.In addition, it is to be understood that after the content for having read statement of the present invention,
Those skilled in the art can make various changes or modifications to the present invention, and these equivalent form of values equally fall within this Shen
Please appended claims limited range.
Embodiment one, as shown in figure 1, a kind of fail-safe system, for the production system of automotive seat in, including controller,
Multiple bolts on correspondence assembly line are preset with controller and tighten program and for tightening the pneumatic of the plurality of bolt
The rifle of rifle；
The position switch detection means being connected with controller, for whether detecting bolt to be assembled in assembly tooling,
Tighten accordingly program to start；Simultaneously this signal or bolt tighten the activation letter of initialization and the reset of cycle of operation
Number；One photoswitch by the device in assembly tooling, for detecting bolt to be assembled whether in assembly tooling, so as to
Program is tightened accordingly in startup；Simultaneously this signal still originally tightens the activation signal of initialization and the reset of cycle of operation.Account for
Signal output is 1 during position, and signal output is 0 during room.
Detection of gas flow rate device, the flow regime signal of the compressed air to detect pneumatic gun；Once close per having beaten
After the rifle time of lattice, the switching signal on detection of gas flow rate device can transmit a signal to controller, and controller is to qualified rifle
Counted；
Wherein, after in bolts assemblies frock to be assembled, position switch detection means to controller sends signal, control
Device starts tightens accordingly program；After pneumatic gun action, the switching signal on detection of gas flow rate device can be by signal transmission
To controller, while controller is counted to qualified rifle time, and by the qualified rifle for being calculated time be previously set in controller
Rifle is compared, and when setting rifle time is expired, system can send a qualified signal, unclamp chain frock；When not reaching
To setting rifle, it is impossible to remove workpiece.
Further, the position switch detection means is photoswitch.
Further, the detection of gas flow rate device is made up of air flow chamber, blade, switching signal, and the blade is placed
In the air-flow intracavity, air flow chamber is provided with suction nozzle and outlet nozzle, and air flow chamber is connected to by the suction nozzle and outlet nozzle
On the high pressure gas pipeline of the pneumatic gun, the blade is positioned over the air-flow intracavity, and switching signal is located above air flow chamber, uses
Whether finish in Detection task, when controller detects bolt tooling to be assembled, now the flow direction of air-flow is Jing air flow chambers
To pneumatic gun, when air flow chamber has air-flow to pass through, the rotation of the blade of air-flow intracavity makes switching signal become normally closed by normally opened, when beating
After a complete rifle, now, can die automatically after moment of torsion because pneumatic gun reaches, pneumatic gun can not action, the blade in air flow chamber
Can not rotate or rotary speed is slower, switching signal becomes normally opened by normally closed.The flow status of gas are transformed into into switch
Signal it is normally closed or normally opened, by the logical calculated of the signal of switching signal and rifle signal, so that controller is to the spiral shell tightened
Bolt state carries out selective mechanisms.
As the presently preferred embodiments, controller adopts PLC in the present invention, if further cost-effective, it is contemplated that adopt
Single board computer is controlled.PLC carries out timing monitoring to the working time of switching signal and pneumatic gun（During the work of monitoring pneumatic gun
Between be switching signal from normally closed to normally opened）, if count once while thinking that a rifle having been beaten if meeting condition, the number of times of counting
Then think that bolt tooling task to be assembled is completed when identical with the number of times of PLC settings
For continuously tightening on same bolt, may cause to repeat the problem of metering, it is anti-to pneumatic torque by system
Identification between seasonable effectively avoids the generation of error count time.Specifically：Each qualified rifle time is pre-set in controller at least
The time of needs；When pneumatic gun compares per the duration of ventilation that the pneumatic gun is calculated after having beaten once and with the time in controller,
It is to repeat to beat on same bolt if the time is less than the setting time, is otherwise new qualified rifle.
Claims (1)
1. a kind of fail-safe system, it is characterised in that including controller, presets multiple bolts on correspondence assembly line in controller
Tighten program and the rifle time for tightening the pneumatic gun of the plurality of bolt；
The position switch detection means being connected with controller control, for whether detecting bolt to be assembled in assembly tooling,
Tighten accordingly program to start；
Detection of gas flow rate device, the detection of gas flow rate device to detect the air flow condition of pneumatic gun, and by sky
Flow of air status signal passes to controller；
Wherein, after in bolts assemblies to be assembled to frock, position switch detection means to controller sends signal, controller
Program is tightened accordingly in startup；After pneumatic gun is per a rifle has been made, the switch on detection of gas flow rate device can be by compressed gas
Flow signal is changed into normally opened signal or normally closed signal, is then transferred to controller, while controller is counted to qualified rifle time, and
The qualified rifle for being calculated time is compared with the rifle being previously set in controller, when setting rifle time is expired, system is sent out
Go out a qualified signal, unclamp chain frock；It is secondary when rifle is not up to set, it is impossible to remove frock, the position switch inspection
Survey device is photoswitch, and the detection of gas flow rate device includes air flow chamber, blade, rotating shaft and switch, and air flow chamber is provided with
Suction nozzle and outlet nozzle, are connected to air flow chamber on the trachea of the pneumatic gun by the suction nozzle and outlet nozzle, the gas
Stream intracavity places the blade, and blade is connected by the rotating shaft with switch, and the controller is PLC, and described controller connects
It is connected to alarm device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410735013.3A CN104483888B (en) | 2014-12-08 | 2014-12-08 | Mistake-proofing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410735013.3A CN104483888B (en) | 2014-12-08 | 2014-12-08 | Mistake-proofing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104483888A CN104483888A (en) | 2015-04-01 |
| CN104483888B true CN104483888B (en) | 2017-04-12 |
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ID=52758446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410735013.3A Active CN104483888B (en) | 2014-12-08 | 2014-12-08 | Mistake-proofing system |
Country Status (1)
| Country | Link |
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| CN (1) | CN104483888B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109649535B (en) * | 2018-12-18 | 2020-09-01 | 广汽丰田汽车有限公司 | Vehicle assembly mechanism and vehicle |
| CN113400237A (en) * | 2021-07-19 | 2021-09-17 | 南昌博格技术有限公司 | Error-proof electric screwdriver, controller and computer screwing system |
| CN113770961B (en) * | 2021-09-22 | 2024-03-12 | 上海优拜机械股份有限公司 | Wireless torque wrench confirmation method, system, device and storage medium |
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| CN201394810Y (en) * | 2009-04-02 | 2010-02-03 | 启赛电子(北京)有限公司 | Device for intelligently controlling leak prevention of screw assembly |
| CN201597001U (en) * | 2009-12-09 | 2010-10-06 | 佛吉亚(武汉)汽车座椅有限公司 | Screw tightening mistake proofing system |
| CN101898339A (en) * | 2009-05-26 | 2010-12-01 | 海洋王照明科技股份有限公司 | Counting alarm electric screw driver |
| CN102520659A (en) * | 2011-12-13 | 2012-06-27 | 广州信邦汽车装备制造有限公司 | Self-learning leakproof assembling method |
| CN102672457A (en) * | 2012-06-05 | 2012-09-19 | 震宇（芜湖）实业有限公司 | Part assembling tool with misloading prevention function and process method for assembling parts by using assembling tool |
| CN202527923U (en) * | 2012-05-04 | 2012-11-14 | 东莞市每通电子科技有限公司 | Intelligent control screw assembly missing-screw-preventing device |
| CN202639813U (en) * | 2012-06-28 | 2013-01-02 | 德尔福电子(苏州)有限公司 | Universal type screw assembling device |
| CN202916622U (en) * | 2012-07-30 | 2013-05-01 | 广州市旭昇电子有限公司 | Intelligent lock-driving electric screwdriver control device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20080462A1 (en) * | 2008-03-18 | 2009-09-19 | Atlas Copco Blm Srl | "ELECTRONIC DYNAMOMETRIC KEY WITH REPLACEABLE TORQUE SENSORS" |
| KR20100005961U (en) * | 2008-12-03 | 2010-06-11 | 주식회사 에스에프에이 | High speed nut runner |
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2014
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201394810Y (en) * | 2009-04-02 | 2010-02-03 | 启赛电子(北京)有限公司 | Device for intelligently controlling leak prevention of screw assembly |
| CN101898339A (en) * | 2009-05-26 | 2010-12-01 | 海洋王照明科技股份有限公司 | Counting alarm electric screw driver |
| CN201597001U (en) * | 2009-12-09 | 2010-10-06 | 佛吉亚(武汉)汽车座椅有限公司 | Screw tightening mistake proofing system |
| CN102520659A (en) * | 2011-12-13 | 2012-06-27 | 广州信邦汽车装备制造有限公司 | Self-learning leakproof assembling method |
| CN202527923U (en) * | 2012-05-04 | 2012-11-14 | 东莞市每通电子科技有限公司 | Intelligent control screw assembly missing-screw-preventing device |
| CN102672457A (en) * | 2012-06-05 | 2012-09-19 | 震宇（芜湖）实业有限公司 | Part assembling tool with misloading prevention function and process method for assembling parts by using assembling tool |
| CN202639813U (en) * | 2012-06-28 | 2013-01-02 | 德尔福电子(苏州)有限公司 | Universal type screw assembling device |
| CN202916622U (en) * | 2012-07-30 | 2013-05-01 | 广州市旭昇电子有限公司 | Intelligent lock-driving electric screwdriver control device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104483888A (en) | 2015-04-01 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 224007 Xiangjiang Road, Yancheng economic and Technological Development Zone, Yancheng City, Jiangsu 36 Patentee after: Jiangsu Yueda Yanfeng Ann Daotuo automotive seat Co. Address before: 224007 Xiangjiang Road, Yancheng economic and Technological Development Zone, Yancheng City, Jiangsu 36 Patentee before: JIANGSU YUEDA YANFENG JIANGSEN AUTOMOTIVE SEATS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 224007 Xiangjiang Road, Yancheng economic and Technological Development Zone, Yancheng City, Jiangsu 36 Patentee after: Jiangsu Yueda Yanfeng Auto Parts Co.,Ltd. Address before: 224007 Xiangjiang Road, Yancheng economic and Technological Development Zone, Yancheng City, Jiangsu 36 Patentee before: JIANGSU YUEDA YANFENG ADIENT SEATING CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |