CN214558146U - Novel welding gun of Plasma welding system - Google Patents
Novel welding gun of Plasma welding system Download PDFInfo
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- CN214558146U CN214558146U CN202120225118.XU CN202120225118U CN214558146U CN 214558146 U CN214558146 U CN 214558146U CN 202120225118 U CN202120225118 U CN 202120225118U CN 214558146 U CN214558146 U CN 214558146U
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Abstract
The utility model discloses a novel welding gun of Plasma welding system belongs to automobile manufacturing technical field, including support locking ring, beam arc mouth support, beam arc ware, tungsten needle clamp, insulator ring and tungsten needle, the beam arc ware is made by pottery, and the beam arc mouth is the round hole form, and the diameter of round hole is not less than 5mm, and the tungsten needle is located beam arc ware trompil center, and the internal cooling cycle water route that is equipped with of welding gun rifle is equipped with temperature monitor on the beam arc ware, is equipped with alarm device on the control system of welding gun, the beneficial effects of the utility model: the device has the advantages of simple structure, convenient maintenance and low production cost, solves the problem of poor stability of a welding system and welding quality caused by a copper beam arc device, greatly improves the welding quality of Plasma welding equipment, reduces the maintenance times of the equipment, and improves the production efficiency of a workshop.
Description
Technical Field
The utility model belongs to the technical field of the automobile manufacturing technique and specifically relates to a novel welding gun of Plasma welding system is related to.
Background
The Plasma welding system is used as an emerging arc welding system in the automobile industry, is mainly characterized by concentrated welding heat input, small formed weld seam heat affected zone, basically realizes welding without splashing, and is suitable for a welding process with higher appearance requirement. The Plasma welding system mainly comprises four parts, including a Plasma welding machine, a cooling system, a welding gun body and a robot gripper. The Plasma welding process principle is as follows; the tungsten electrode of the gun body is a negative electrode of a welding loop, the robot gripper is a positive electrode of the welding loop, in an arc starting stage, arc starting is carried out through high voltage and high frequency, a normal arc welding mode is switched in after arc starting is stable, a high-energy ion flow with concentrated energy is formed under the arc action of a copper beam arc device, copper brazing filler metal is melted, and an arc welding process is executed.
After the GEM vehicle type is on line, the stability of a Plasma welding system and the welding quality always has large fluctuation, the wearing parts of the Plasma system need to be checked by entering a station every 50 trolleys in average processing, the burning loss of the wearing parts is prevented from influencing the operation and the welding quality of the equipment, and the problems of instability and extremely high repair rate of the Plasma welding system equipment become the bottleneck problems of line speed improvement and quality control of a vehicle body workshop. The main factors influencing the Plasma welding equipment and the quality stability are the arcing shunting problem related to the copper arc bunching device, the electromagnetic interference problem caused by continuous high-frequency high-voltage arcing caused by shunting, and the problem that the tungsten needle is burnt to damage the upsetting and block the arc bunching device. As can be seen from the influencing factors, the use of the copper beamer is the root cause for influencing the Plasma welding equipment and the quality stability. Therefore, the development and application of the novel beam-arc device are the main methods for solving the problems of the current system.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: overcome prior art's not enough, provide a safe effectual novel welding rifle of Plasma welding system, the device simple structure, convenient maintenance, great improvement Plasma welding equipment's welding quality to reduce the maintenance number of times of equipment, improved the production efficiency in workshop.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the novel welding gun of Plasma welding system includes the welding gun, and the welding gun includes support locking ring, beam arc mouth support, beam arc ware, tungsten needle clamp, insulator ring and tungsten needle, the beam arc ware is made by pottery, and the beam arc mouth is the round hole form, and the diameter of round hole is not less than 5 mm. The ceramic material has good insulation property, can solve the problems of arc striking shunting and electromagnetic interference of the arc bunching device, has certain thermal conductivity, has abrasion resistance not lower than copper, and meets the technical requirements of the arc bunching device. The existing copper arc beam device has a square beam arc opening with the size of 6 multiplied by 3mm, is changed into a round hole shape with the diameter of the hole not less than 5mm, is beneficial to the uniform flow of protective gas and the sufficient removal of partial heat, is also beneficial to the port of the arc beam device to be far away from the center of a heat source, and further improves the hot brittleness problem of ceramics.
Further, the diameter of the circular hole of the beam arc opening is 5-7mm, and preferably the diameter of the circular hole of the beam arc opening is 5.5 mm. The circular hole of the arc-restraining port is too small, air circulation is poor, the tungsten needle is easy to block after being heated and deformed, and the circular hole is too large, so that welding accuracy is not facilitated.
And furthermore, the tungsten needle is positioned in the center of the opening of the arc bundling device, so that the welding precision is improved.
Furthermore, a cooling circulation water channel is arranged in the welding gun body. The cooling water helps to improve the heat dissipation capability of the ceramic material.
And furthermore, a temperature monitor is arranged on the arc beam device and connected to a control system of the welding gun. The temperature of the arc beam device is monitored, the working state of the arc beam device can be known, and the working state is used as a factor for judging whether the arc beam device is damaged or not.
Still further, an alarm device is arranged on a control system of the welding gun. A timer is arranged on a control system of the welding gun. According to the cleaning and replacing experiences of the arc bunching device and the tungsten needle, the service life of the arc bunching device and the tungsten needle can be calculated, and a timer is used for reminding workers of cleaning and replacing the arc bunching device and the tungsten needle.
Further, the arc beam device is made of ceramics added with trace elements which can improve the thermal brittleness of the material, wherein the trace elements comprise aluminum oxide and the like. The material has good hot brittleness, and the product function can be kept free from cracking and slag falling for a long time under the condition of hot and cold alternation, so that the shape and the function of the novel arc bunching device are kept complete.
The utility model has the advantages that:
1. the device has the advantages of simple structure, convenient maintenance and low production cost. The problem of the reposition of redundant personnel of arcing that the effectual copper beaming arc ware of having solved involves, the electromagnetic interference that the high frequency high pressure arc that causes by the continuation of reposition of redundant personnel leads to and the problem that the tungsten needle burns and decreases the thick jam beaming arc ware of mound has improved welding system and welding quality's stability, has reduced maintenance of equipment and time that the product that does not reach standard was reprocessed and is spent to the quality, has increased welding system's work efficiency, and then has improved the economic benefits of enterprise.
2. The ceramic material solves the problems of arc starting shunting and electromagnetic interference of the arc beam device; the arc-shaped opening is in a round hole shape, so that the protective gas can uniformly flow and can fully carry away part of heat; the aperture of the arc bundling opening is increased, and the tungsten needle is prevented from being blocked by the arc bundling device after being heated and deformed; the cooling water helps to improve the heat dissipation capability of the ceramic material; the temperature monitor detects whether the arc bunching device is damaged or not; the timer reminds workers of cleaning and replacing the arc bunching device and the tungsten needle; the hot brittleness of the material is improved, and the shape and the function of the novel arc beam device can be kept complete in work.
The present invention will be further described with reference to the accompanying drawings and the detailed description.
Drawings
FIG. 1 is a schematic view of a cross-section of a novel welding gun of a Plasma welding system;
fig. 2-is a schematic view of an arc beam machine.
1-welding gun, 2-support locking ring, 3-arc-bundling nozzle support, 4-arc bundling device, 5-cooling circulating water path, 6-tungsten needle clamp, 7-insulating ring, 8-tungsten needle and 9-arc bundling opening.
Detailed Description
Example one
The novel welding gun of Plasma welding system, including support locking ring 2, beam arc mouth support 3, beam arc ware 4, tungsten needle clamp 6, insulator ring 7 and tungsten needle 8, beam arc ware 4 is made by pottery, and beam arc mouth 9 is the round hole form, and the diameter of round hole is not less than 5 mm.
In the embodiment, the diameter of the circular hole of the beam arc opening 9 is 5-7 mm. Preferably, the diameter of the circular hole of the beam arc opening 9 is 5.5 mm.
In the embodiment, the tungsten needle 8 is positioned in the center of the opening of the arc welding device 4, the cooling circulation water path 5 is arranged in the welding gun body 1, and the arc welding device 4 is provided with a temperature monitor (not shown) which is connected to a control system (not shown) of the welding gun 1. An alarm device is arranged on a control system of the welding gun 1, and a timer is arranged on the control system of the welding gun 1.
Example two
This embodiment differs from the above embodiments in that the arc beam 4 is made of ceramic to which trace elements are added that improve the thermal brittleness of the material, including alumina and the like.
The utility model has the working principle and the using method:
1. during normal use, the control system of the welding gun 1 controls the operation of the whole device, and the cooling circulation water path 5 system is opened to weld the automobile. The temperature monitoring instrument monitors the temperature of the arc bunching device 4, when the temperature exceeds a set temperature value, the alarm device sounds, the staff closes the device, and the arc bunching device 4 is overhauled and replaced. And calculating the service time of the arc beam device 4 and the tungsten needle 8 according to the cleaning and replacing experiences of the arc beam device 4 and the tungsten needle 8, and designing the time on a timer on a control system after replacing the arc beam device 4 and the tungsten needle 8 each time. After the set time is up, the alarm device sounds to remind the staff to clean and replace the arc bunching device 4 and the tungsten needle 8.
The following are the comparative effects of the ceramic and copper beamers:
1) the rework rate of the welding quality is reduced from 15 percent before improvement to 3 percent after improvement;
2) the equipment failure rate is reduced from the average failure time of 99min per shift before improvement to 5min after improvement, and the equipment failure rate is reduced by about 95%.
3) The arc binder life was improved from the pre-modified 3000 welds to the modified 9000 welds.
4) Tungsten needle life is promoted from a 700 weld before modification to a 2000 weld after modification.
5) The cost of a copper arc beam device per unit is 4.4 yuan, the cost of a ceramic arc beam device per unit is 2.4 yuan, and the cost of the ceramic arc beam device per unit is saved by 2 yuan.
6) The frequency of cleaning welding slag of the arc beam device and the tungsten needle is improved from cleaning 200 welding seams (50 trolleys) before improvement to cleaning 1600 welding seams (400 trolleys) after improvement, and the maintenance efficiency is improved by 700 percent
The above are only embodiments of the present invention, and are not intended to limit the present invention, and to those skilled in the art, the present invention can have the combination and modification of the above various technical features, and those skilled in the art can replace the modifications, equivalents, or use the structure or method of the present invention in other fields to achieve the same effect without departing from the spirit and scope of the present invention, and all belong to the protection scope of the present invention.
Claims (7)
1. A novel welding gun of Plasma welding system, includes welding gun (1), and welding gun (1) includes bundling ware (4) and tungsten needle (8), its characterized in that: the arc bunching device (4) is made of ceramics, the arc bunching opening (9) is in a circular hole shape, and the diameter of the circular hole is not less than 5 mm; the tungsten needle (8) is positioned in the center of the opening of the arc bunching device (4);
a cooling circulation water channel (5) is arranged in the welding gun body of the welding gun (1); the welding gun (1) comprises a support locking ring (2), an arc mouth support (3), a tungsten needle clamp (6) and an insulating ring (7).
2. The Plasma welding system new welding gun of claim 1, characterized in that: the diameter of the round hole of the beam arc opening (9) is 5-7 mm.
3. The Plasma welding system new welding gun of claim 2, characterized in that: the diameter of the round hole of the beam arc opening (9) is 5.5 mm.
4. The Plasma welding system new welding gun of claim 3, characterized in that: and a temperature monitor is arranged on the arc bunching device (4).
5. The Plasma welding system new welding gun of claim 4, characterized in that: the welding gun (1) is provided with a control system, and the temperature monitor is connected to the control system of the welding gun (1).
6. The Plasma welding system new welding gun of claim 5, characterized in that: and an alarm device is arranged on a control system of the welding gun (1).
7. The Plasma welding system new welding gun of claim 6, characterized in that: and a timer is arranged on a control system of the welding gun (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120225118.XU CN214558146U (en) | 2021-01-27 | 2021-01-27 | Novel welding gun of Plasma welding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120225118.XU CN214558146U (en) | 2021-01-27 | 2021-01-27 | Novel welding gun of Plasma welding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214558146U true CN214558146U (en) | 2021-11-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120225118.XU Active CN214558146U (en) | 2021-01-27 | 2021-01-27 | Novel welding gun of Plasma welding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214558146U (en) |
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2021
- 2021-01-27 CN CN202120225118.XU patent/CN214558146U/en active Active
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