CN104400728B - Pneumatic gun fail-safe system - Google Patents
Pneumatic gun fail-safe system Download PDFInfo
- Publication number
- CN104400728B CN104400728B CN201410735844.0A CN201410735844A CN104400728B CN 104400728 B CN104400728 B CN 104400728B CN 201410735844 A CN201410735844 A CN 201410735844A CN 104400728 B CN104400728 B CN 104400728B
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- China
- Prior art keywords
- controller
- rifle
- signal
- pneumatic gun
- detection
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- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measuring Volume Flow (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The present invention relates to pneumatic gun fail-safe system, belong to automotive seat mounting technique field.Including controller, it is preset with the program of tightening of multiple bolts on corresponding assembly line in controller and to the rifle being applied to tighten the pneumatic gun of the plurality of bolt；Whether position switch detection device, for detecting bolt to be assembled in assembly tooling, in order to start and tighten program accordingly；Pneumatic gun device, is used for tighting a bolt；Detection of gas flow rate device, in order to detect the compressed-air actuated flow regime signal of pneumatic gun device；After every dozen of the most qualified complete rifles time, the switching signal on detection of gas flow rate device can transmit a signal to controller, and controller is to qualified rifle time counting.The present invention not only ensures to reach the mistake proofing effect the same with electric torque rifle, and well below electric torque rifle on cost.
Description
Technical field
The present invention relates to pneumatic gun fail-safe system, belong to automotive seat mounting technique field.
Background technology
Aerodynamic moment spanner is widely used in the production assembling of each factory, is mainly used in some torque values and fastens at the bolt terminal of 10NM-40NM.The features such as it is high (7-10%) that this pneumatic adjustable wrest fixing spanner has torque precision, and good stability is easy to use, it is easy to safeguards, moderate.But in modern assembly industry, whole system is more and more higher to the integrated requirement of instrument, need instrument itself can carry out effective information transmission and interlocking collaborative work with whole system.Reason yet with this body structure of pneumatic impact spanner, it is clear that this requirement can not be met.This just makes the aerodynamic moment spanner state when carrying out bolt fastening can not effectively be monitored and be followed the tracks of.Branch company have employed pneumatic torque wrench at multiple stations and carries out the connection of workpiece, in use, bolt no marking, the wrong quality events such as beat repeatedly occurs., when using aerodynamic moment spanner, the most all there is situation about being similar in other general assembly factory.Owing to these shortcomings make many factories when purchasing tightening tool, do not consider further that pneumatic impact spanner, change electric torsional Ore-controlling Role into, so that being greatly promoted purchase cost.
Summary of the invention
The technical problem to be solved is to provide a kind of pneumatic gun fail-safe system, above-mentioned deficiency for aerodynamic moment spanner, carry out analyzing targetedly and improving with whole fielded system to the aerodynamic moment spanner used, it is allowed to possessed the communication function with system synergistic working, can effectively transmit and relevant tighten information, with under frock interlocking work, solve bolt no marking, the wrong quality events such as beat, greatly improve mistake proofing grade.
In order to solve above-mentioned technical problem, the present invention adopts the following technical scheme that
Pneumatic gun fail-safe system, it is characterised in that include controller, presets the program of tightening of multiple bolts on corresponding assembly line and for tightening the rifle of the pneumatic gun of the plurality of bolt in controller；
The position switch detection device being connected is controlled, for whether detecting bolt to be assembled in assembly tooling, in order to start and tighten program accordingly with controller；
One detection of gas flow rate device, described detection of gas flow rate device is in order to detect the air flow condition of pneumatic gun, and air flow condition signal is passed to controller；
Wherein, after in bolts assemblies frock to be assembled, position switch detection device sends signal to controller, and controller starts tightens program accordingly；When after the complete rifle of pneumatic gun every dozen, compression gas flow signal can be changed into the normally opened signal of switch or normally closed signal by the switching signal on detection of gas flow rate device, it is then transferred to controller, controller is to qualified rifle time counting simultaneously, and the qualified rifle calculated time is compared with the rifle being previously set in controller, when setting rifle time and expiring, system sends a qualified signal, unclamps chain frock；When not up to setting rifle, it is impossible to take off frock.
Described position switch detection device is photoswitch.
Described detection of gas flow rate device includes air flow chamber, blade, rotating shaft and switching signal, air flow chamber is provided with suction nozzle and outlet nozzle, by described suction nozzle and outlet nozzle, air flow chamber is connected on the trachea of described pneumatic gun, placing described blade in described air flow chamber, blade is connected with switching signal by described rotating shaft.
Described controller is PLC.
Described controller connects alarm device.
Beneficial effects of the present invention:
Utilize pneumatic torque wrench after tightening the torque value set, can automatically die, even and if the most still by press against the gunlock of spanner, the throughput in trachea is zero this characteristic.System by pouring the tight condition of another edition of a book bolt to the seizure of the trailing edge differential of flow signal.Then calculated by the bolt of the system eligible state to having tightened, and compare with the rifle of default, when set rifle time completely time, system can send a qualified signal, unclamp chain frock.And when not up to setting rifle, owing to assembly tooling and system are chain, it is impossible to take off frock.If forcing to take frock away, system can send warning.
Pneumatic gun fail-safe system of the present invention can effectively transmit relevant tightens information, with under the interlocking work of frock, greatly improves mistake proofing grade, significantly reduces the probability of happening of no marking accident.
Accompanying drawing explanation
Fig. 1 is the system construction drawing of pneumatic gun fail-safe system of the present invention；
Fig. 2 is the structural principle schematic diagram of detection of gas flow rate device；
Wherein, 1, blade；2, switch；3, the air of air flow chamber is entered；4, the air of pneumatic gun is entered.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is expanded on further.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 having read the content of present invention statement, the present invention can be made various changes or modifications by those skilled in the art, and these equivalent form of values fall within this Shen equally
Please appended claims limited range.
Embodiment one, as it is shown in figure 1, a kind of pneumatic gun fail-safe system, in the production system of automotive seat, including controller, is preset with the program of tightening of multiple bolts on corresponding assembly line and for tightening the rifle of the pneumatic gun of the plurality of bolt in controller；
Whether the position switch detection device being connected with controller, for detecting bolt to be assembled in assembly tooling, in order to start and tighten program accordingly；This signal or bolt tighten the initialization of cycle of operation and the activation signal of reset simultaneously；Whether one photoswitch by device in assembly tooling, for detecting bolt to be assembled in assembly tooling, in order to starts and tightens program accordingly；This signal the most originally tightens the initialization of cycle of operation and the activation signal of reset simultaneously.Occupation time signal is output as 1, and during room, signal is output as 0.
Detection of gas flow rate device, in order to detect the compressed-air actuated flow regime signal of pneumatic gun；After every dozen of the most qualified complete rifles time, the switching signal on detection of gas flow rate device can transmit a signal to controller, and qualified rifle is counted by controller；
Wherein, after in bolts assemblies frock to be assembled, position switch detection device sends signal to controller, and controller starts tightens program accordingly；When after pneumatic gun action, switching signal on detection of gas flow rate device can transmit a signal to controller, controller is to qualified rifle time counting simultaneously, and the qualified rifle calculated time is compared with the rifle being previously set in controller, when setting rifle time and expiring, system can send a qualified signal, unclamps chain frock；When not up to setting rifle, it is impossible to take off workpiece.
Further, described position switch detection device is photoswitch.
nullFurther，Described detection of gas flow rate device is by air flow chamber、Blade、Switching signal forms，Described blade is positioned in described air flow chamber，Air flow chamber is provided with suction nozzle and outlet nozzle，Air flow chamber is connected on the high pressure gas pipeline of described pneumatic gun by described suction nozzle and outlet nozzle，Described blade is positioned in described air flow chamber，Switching signal is located at above air flow chamber，Whether finish for Detection task，When controller detects bolt tooling to be assembled，Now the flow direction of air-flow is to pneumatic gun through air flow chamber，When air flow chamber has air-flow to pass through，Blade in air flow chamber rotates and makes switching signal be become normally closed by normally opened，After having made a rifle，Now，Can automatically die after reaching moment of torsion due to pneumatic gun，Pneumatic gun can not action，Blade in air flow chamber can not rotate or rotary speed is slower，Switching signal is become normally opened by normally closed.The flow status of gas is transformed into the normally closed or normally opened of switching signal, by the logical calculated of the signal of switching signal Yu rifle signal, in order to controller carries out selective mechanisms to the bolt state tightened.
As the presently preferred embodiments, middle controller of the present invention uses PLC, if the most cost-effective, it is contemplated that would use single board computer to be controlled.PLC carries out timing monitoring (working time of monitoring pneumatic gun is that switching signal is from normally closed to normally opened) to the working time of switching signal and pneumatic gun, if meet condition simultaneously, thinking a rifle to beat i.e. and count once, the bolt tooling task then thinking to be assembled when the number of times of counting is identical with the number of times that PLC sets completes
For tightening continuously on same bolt, the problem that may cause repeating metering, by system, the identification in pneumatic torque response time is effectively avoided the generation of error count time.Specifically: in controller, pre-set the time that each qualified rifle at least needs；After pneumatic gun every dozen is complete once, calculates the duration of ventilation of this pneumatic gun and compares with the time in controller, if the time is less than arranging the time, then for repeating to beat on same bolt, being otherwise new qualified rifle.
Claims (1)
1. pneumatic gun fail-safe system, including controller, presets the program of tightening of multiple bolts on corresponding assembly line and for tightening the rifle of the pneumatic gun of the plurality of bolt in controller；The position switch detection device being connected is controlled, for whether detecting bolt to be assembled in assembly tooling, in order to start and tighten program accordingly with controller；Detection of gas flow rate device, described detection of gas flow rate device is in order to detect the air flow condition of pneumatic gun, and air flow condition signal is passed to controller；Wherein, after in bolts assemblies frock to be assembled, position switch detection device sends signal to controller, and controller starts tightens program accordingly；When after the complete rifle of pneumatic gun every dozen, compression gas flow signal can be changed into the normally opened signal of switch or normally closed signal by the switching signal on detection of gas flow rate device, it is then transferred to controller, controller is to qualified rifle time counting simultaneously, and the qualified rifle calculated time is compared with the rifle being previously set in controller, when setting rifle time and expiring, system sends a qualified signal, unclamps chain frock；When not up to setting rifle, frock can not be taken off, it is characterized in that, described detection of gas flow rate device includes air flow chamber, blade, rotating shaft and switching signal, and air flow chamber is provided with suction nozzle and outlet nozzle, air flow chamber is connected on the trachea of described pneumatic gun by described suction nozzle and outlet nozzle, described blade is placed in described air flow chamber, blade is connected with switching signal by described rotating shaft, and described controller is PLC, and described controller connects alarm device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410735844.0A CN104400728B (en) | 2014-12-08 | 2014-12-08 | Pneumatic gun fail-safe system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410735844.0A CN104400728B (en) | 2014-12-08 | 2014-12-08 | Pneumatic gun fail-safe system |
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| Publication Number | Publication Date |
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| CN104400728A CN104400728A (en) | 2015-03-11 |
| CN104400728B true CN104400728B (en) | 2016-08-24 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107390621A (en) * | 2017-07-25 | 2017-11-24 | 广东美的厨房电器制造有限公司 | Screw fastening system and screw fastening fail-safe system and method |
| 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 |
| CN115229487A (en) * | 2022-09-05 | 2022-10-25 | 温州长江汽车电子有限公司 | System and method for preventing missing hitting of screw |
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| US5689434A (en) * | 1992-08-10 | 1997-11-18 | Ingersoll-Rand Company | Monitoring and control of fluid driven tools |
| 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 |
| CN201519928U (en) * | 2009-09-28 | 2010-07-07 | 西门子威迪欧汽车电子(惠州)有限公司 | Control device for preventing screw from not being marked |
| 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 |
| CN103197567A (en) * | 2013-01-16 | 2013-07-10 | 浙江吉利罗佑发动机有限公司 | Bolt tightening system and mistake-proof control method |
| CN203287725U (en) * | 2013-05-31 | 2013-11-13 | 厦门盈趣科技股份有限公司 | Fool-proof controller for screw locking |
| CN204382170U (en) * | 2014-12-08 | 2015-06-10 | 江苏悦达延锋江森汽车座椅有限公司 | Pneumatic gun fail-safe system |
-
2014
- 2014-12-08 CN CN201410735844.0A patent/CN104400728B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5689434A (en) * | 1992-08-10 | 1997-11-18 | Ingersoll-Rand Company | Monitoring and control of fluid driven tools |
| 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 |
| CN201519928U (en) * | 2009-09-28 | 2010-07-07 | 西门子威迪欧汽车电子(惠州)有限公司 | Control device for preventing screw from not being marked |
| 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 |
| CN103197567A (en) * | 2013-01-16 | 2013-07-10 | 浙江吉利罗佑发动机有限公司 | Bolt tightening system and mistake-proof control method |
| CN203287725U (en) * | 2013-05-31 | 2013-11-13 | 厦门盈趣科技股份有限公司 | Fool-proof controller for screw locking |
| CN204382170U (en) * | 2014-12-08 | 2015-06-10 | 江苏悦达延锋江森汽车座椅有限公司 | Pneumatic gun fail-safe system |
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| CN104400728A (en) | 2015-03-11 |
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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. |
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| 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. |
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| CP01 | Change in the name or title of a patent holder |