CN103128435A - Fault detector of welding gun welding nozzle truing device of spot welding robot - Google Patents
Fault detector of welding gun welding nozzle truing device of spot welding robot Download PDFInfo
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- CN103128435A CN103128435A CN2011103891254A CN201110389125A CN103128435A CN 103128435 A CN103128435 A CN 103128435A CN 2011103891254 A CN2011103891254 A CN 2011103891254A CN 201110389125 A CN201110389125 A CN 201110389125A CN 103128435 A CN103128435 A CN 103128435A
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- tip
- trimming device
- spot welding
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Abstract
The invention relates to a fault detector of a welding gun welding nozzle truing device of a spot welding robot. Detectors are respectively arranged above an intermediate gear and on an outer shell of the intermediate gear in the welding nozzle truing device of a gear rotary cutting lathe which is driven by a motor, signals of the detectors can be transmitted to a programmable logic controller (PLC), and the PLC transmits the signals to a warning lamp and an operating system of the spot welding robot. According to the fault detector of the welding gun welding nozzle truing device of the spot welding robot, when the gear rotary cutting lathe which is arranged in the welding nozzle truing device and is used for cutting welding nozzles can not rotate due to various reasons, the detectors arranged on the welding nozzle truing device immediately detect the situation, the warning lamp is lightened, the spot welding robot is incapable of carrying out welding, and is prevented from working, and thus poor welding caused by a bad welding nozzle is prevented, the state of the welding nozzle is maintained in a state that the welding nozzle is applicable to weld all the time, and welding quality of products is improved.
Description
Technical field
The present invention relates to a kind of fault detector of spot welding robot's welding nozzle of welding gun trimming device, especially a kind of fault detector of spot welding robot's welding nozzle of welding gun trimming device, when the tip that is formed at welding gun up and down in utilization carries out spot welding to sheet material, if cause the fusing of tip end agglomerating because repeating pinpoint welding procedure, will utilize tip trimming device cutting tip end to form desirable contact-making surface, if but the tip trimming device of completing above-mentioned operation breaks down, survey above-mentioned situation and also inform the keeper rapidly and light emergency warning lamp, and stop spot welding operation.
Background technology
As everyone knows, the spot welding robot utilizes the tip that is formed at the welding gun up and down, exerts pressure and switches at sheet material upward and downward sheet material, completes resistance welded with this.
The required initial input condition of such resistance welded has electric current, resistance, conduction time etc.At this, resistance is subjected to the impact of tip contact cross-sectional area larger.
Therefore, in spot welding robot's a side, the tip trimming device is set, is formed at the tip end of above-mentioned spot welding robot's welding gun up and down by cutting, guarantee desirable contact-making surface.
Existing dressing process by the tip trimming device like this is as follows: in the situation of hand held gun, directly to cut the end of tip with hand by the operator, but in the situation that spot welding robot, weld in the welding position and welding times is carried out technology, after reaching certain number of times, by tip trimming device automatic cutting tip end.
Existing above-mentioned tip trimming device for automatic cutting tip end moves by spot welding robot's operating system.
Namely, to the welding times of input spot welding robot operating system count and work as reach certain number of times after, being formed at welding gun tip up and down moves to the tip trimming device and stops certain hour, repeat pinpoint welding procedure and melt agglomerating tip end with cutting, the tip that is formed at afterwards the welding gun up and down moves to the welding position of panel and proceeds welding.
But, even can not cut because of the fault of the tip trimming device of completing above-mentioned functions in the situation of the agglomerating tip end of fusing, through after certain hour, spot welding robot's operating system also makes the tip that is formed at welding gun up and down move to the welding position and completes weld task, and continue to the welding times of inputting count and work as reach certain number of times after, the tip that is formed at the welding gun up and down moves to tip trimming device repetition tip dressing operation.
If like this, because proceeding welding with the agglomerating end of fusing, therefore reduce welding quality, cause the decline of product quality, shorten life of product.
Summary of the invention
The fault detector that the object of the invention is to overcome the deficiencies in the prior art and a kind of spot welding robot's welding nozzle of welding gun trimming device is provided, it prevents from can not completing original function because of existing trimming device, melt endways the problem of the welding quality decline of proceeding weld job in agglomerating situation and causing, when the tip trimming device can not be completed original function, survey above-mentioned situation by the tip trimming device immediately, and for informing that rapidly the keeper lights emergency warning lamp, and stop spot welding operation.
For achieving the above object, the invention provides a kind of fault detector of spot welding robot's welding nozzle of welding gun trimming device, it is characterized in that, utilizing the driving of motor, in tip trimming device by gear rotary cutting car, with shell, detector is set respectively on idler gear, and the signal of detector can be passed to PLC, and above-mentioned PLC can be passed to above-mentioned signal emergency warning lamp and spot welding robot's operating system.
The fault detector of a kind of spot welding robot's welding nozzle of welding gun of the invention described above trimming device, if when causing cutting cutting car in the tip trimming device of tip because of a variety of causes and can not rotate, survey above-mentioned situation by the detector that is arranged at the tip trimming device immediately, light emergency warning lamp and for making the spot welding robot can not weld the operation that stops the spot welding robot, thereby prevent the failure welding that bad tip causes, all the time the state with tip maintains the state that is suitable for welding, and improves the welding quality of product.
Description of drawings
Fig. 1 is welding nozzle of welding gun trimming device installment state schematic diagram of the present invention;
Fig. 2 is the tip enlarged diagram of welding nozzle of welding gun trimming device of the present invention and welding gun;
Fig. 3 is the tip side view of welding nozzle of welding gun trimming device of the present invention and welding gun;
Fig. 4 is welding nozzle of welding gun trimming device working state schematic representation of the present invention;
Fig. 5 is for showing the plane of tip trimming device of the present invention inside;
Fig. 6 is the PLC circuit diagram of the fault detector of explanation tip trimming device of the present invention.
Description of reference numerals
1: main body 2: motor
3: driving shaft 4: driven wheel
5: driven gear 6: cutting car swing pinion
7: upper casing 20: emergency warning lamp
50: mobile detector 60: the cutting car
70: fixed detector.
The specific embodiment
Below, by reference to the accompanying drawings the embodiment of the fault detector of a kind of spot welding robot's welding nozzle of welding gun of the present invention trimming device is elaborated.
Fig. 1 is welding nozzle of welding gun trimming device installment state schematic diagram of the present invention; Fig. 2 is the tip enlarged diagram of welding nozzle of welding gun trimming device of the present invention and welding gun; Fig. 3 is the tip side view of welding nozzle of welding gun trimming device of the present invention and welding gun; Fig. 4 is welding nozzle of welding gun trimming device working state schematic representation of the present invention; Fig. 5 is for showing the plane of tip trimming device of the present invention inside; Fig. 6 is the PLC circuit diagram of the fault detector of explanation tip trimming device of the present invention.
The fault detector of a kind of spot welding robot's welding nozzle of welding gun of the present invention trimming device comprises:
The tip trimming device, in its main body 1 bottom, motor 2 is set, make the driving shaft 3 of said motor also driven wheel 4 is set thereon to body interior is outstanding, and be rotary cutting car and cutting car swing pinion, make driven gear 5 be connected in the cutting car swing pinion 6 that cutting car 60 is arranged on central authorities;
Fixed detector 70 and mobile detector are arranged on the upper casing 7 of above-mentioned tip trimming device and driven gear 5 mutually corresponding place;
Wherein, above-mentioned detector carries out technology and its signal is sent to PLC80 the rotation of driven gear, and above-mentioned PLC80 is passed to its signal emergency warning lamp 20 and spot welding robot's operating system 90 when not receiving above-mentioned rotation counting signal.
Below, the effect of the fault detector of a kind of spot welding robot's welding nozzle of welding gun of the invention described above trimming device is elaborated.
At first, come simple knowledge as the spot welding of spot welding robot's major function.
At first, the tip that consists of the spot welding robot passes through the effect of spot welding robot's operating system near the welding position of soldered thing, is exerted pressure simultaneously and switches on to the top and bottom of soldered thing by tip, completes resistance welded with this.
Complete the above-mentioned by after the spot welding of resistance of certain number of times, the end of tip will melt agglomerating.
At this moment, will utilize tip trimming device cutting tip end to form desirable contact-making surface, if but the tip trimming device of completing above-mentioned operation break down, complete detection mission by the fault detector of spot welding robot's welding nozzle of welding gun trimming device of the present invention.
Namely, the above-mentioned welding gun tip up and down that is formed at carries out the spot welding operation of certain number of times in the welding position of soldered thing, if the fusing of the end of tip is agglomerating in above-mentioned welding process, the end of the above-mentioned tip of rotary cutting of the cutting car by above-mentioned tip trimming device, and the rotation of above-mentioned cutting car is by the mobile detector that is arranged at driven gear and upper casing and fixed detector is counted and signal is passed to PLC, if counting is normal, the tip that will be formed at the welding gun up and down moves to the welding position of soldered thing and proceeds welding.
In repeating the process of above-mentioned spot welding operation, because of the fault of the motor that consists of the tip trimming device or the fault of parts, in the situation that the tip trimming device can not carry out operation, the tip of welding gun arrives the cutting car 60 that consists of the tip trimming device sometimes.
At this moment, because of the mobile detector that is arranged at driven gear and upper casing and the interaction of fixed detector, can not count the rotation of cutting car the fixed detector that the rotation status of cutting car is counted.
Above-mentioned fixed detector is surveyed above-mentioned state and its signal is passed to PLC80, and above-mentioned PLC80 is passed to signal emergency warning lamp 20 and spot welding robot's operating system 90, lights emergency warning lamp 20 and stops spot welding robot's operation by spot welding robot's operating system with this.
Like this, after getting rid of the fault of tip trimming device and carry out normal tip cutting by the operator, proceed spot welding operation.
The above is only preferred embodiment of the present invention, is not for limiting protection scope of the present invention.
Claims (1)
1. the fault detector of spot welding robot's welding nozzle of welding gun trimming device, it is characterized in that, comprise: the tip trimming device, in its main body (1) bottom, motor (2) is set, make the driving shaft (3) of said motor to the outstanding driven wheel (4) that also arranges of body interior thereon, and be rotary cutting car and cutting car swing pinion, make driven gear (5) be connected in above-mentioned driven wheel (4) and cut the cutting car swing pinion (6) that car is arranged on central authorities;
Fixed detector (70) and mobile detector, the upper casing (7) and the driven gear (5) that are arranged at the rotation of detectable above-mentioned cutting car swing pinion (6) are gone up mutually corresponding place;
Wherein, the signal of described detector is checked by PLC (80), and described PLC (80) can be passed to signal emergency warning lamp (20) and spot welding robot's operating system (90).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103891254A CN103128435A (en) | 2011-11-30 | 2011-11-30 | Fault detector of welding gun welding nozzle truing device of spot welding robot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103891254A CN103128435A (en) | 2011-11-30 | 2011-11-30 | Fault detector of welding gun welding nozzle truing device of spot welding robot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103128435A true CN103128435A (en) | 2013-06-05 |
Family
ID=48489235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103891254A Pending CN103128435A (en) | 2011-11-30 | 2011-11-30 | Fault detector of welding gun welding nozzle truing device of spot welding robot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103128435A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003230966A (en) * | 2002-02-12 | 2003-08-19 | Nissan Motor Co Ltd | Tip dresser and tip dressing method |
| KR20100025092A (en) * | 2008-08-27 | 2010-03-09 | (주) 세원테크 | Malfunction sensor of welding gun tip dressing instrument of spot welding robot |
| JP4653892B2 (en) * | 2001-01-25 | 2011-03-16 | 本田技研工業株式会社 | Electrode tip dressing abnormality detection method and apparatus |
| CN102189323A (en) * | 2010-03-12 | 2011-09-21 | 上海拖拉机内燃机有限公司 | Method and system for replacing electrode outside working position of robot spot welding |
-
2011
- 2011-11-30 CN CN2011103891254A patent/CN103128435A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4653892B2 (en) * | 2001-01-25 | 2011-03-16 | 本田技研工業株式会社 | Electrode tip dressing abnormality detection method and apparatus |
| JP2003230966A (en) * | 2002-02-12 | 2003-08-19 | Nissan Motor Co Ltd | Tip dresser and tip dressing method |
| KR20100025092A (en) * | 2008-08-27 | 2010-03-09 | (주) 세원테크 | Malfunction sensor of welding gun tip dressing instrument of spot welding robot |
| CN102189323A (en) * | 2010-03-12 | 2011-09-21 | 上海拖拉机内燃机有限公司 | Method and system for replacing electrode outside working position of robot spot welding |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130605 |