Welding robots were first used only in spot welding. At the beginning of 1980, with the development of computer technology and sensor technology, arc welding robots gradually gained popularity, especially in the past ten years, due to the rapid development of the world economy, the market is fiercely competitive. The welding automation machines for medium and large-scale production can no longer adapt to the small-scale, multi-variety production mode and are gradually replaced by flexible welding robots. The welding robots have been greatly developed, and welding has become the largest field of industrial robot applications. One of them, welding robots have been widely used in automobiles, motorcycles, construction machinery and other fields. Among the more than 800,000 industrial robots in the world, more than 40% of robots can be used for welding.
Main considerations for robot welding
1. Teaching work must be carried out
Before the robot performs automatic welding, the operator must teach the trajectory of the robot welding torch and set the welding conditions.
Since it is necessary to teach, the robot does not weld to a small number of products produced in small quantities.
2. Must ensure the accuracy of the workpiece
The robot has no eyes and can only repeat the same action.
The robot's trajectory accuracy is ±0.1mm, and the same action is repeated with this accuracy.
When the welding deviation is greater than the wire radius, there is a possibility that the welding is not good, so the accuracy of the workpiece should be kept within the radius of the wire.
3. The setting of the welding conditions depends on the skill level of the teaching staff.
When the operator teaches, it is necessary to input welding procedures, welding gun attitude and angle, welding conditions such as current, voltage and speed.
Teaching operators must have sufficient knowledge of welding and welding techniques.
4. Must pay full attention to safety
The robot is a high-speed sports equipment that does not allow people to approach the robot when it is running automatically (the safety barrier must be set).
Operators must receive specialized education in labor safety, otherwise they are not allowed to operate.
Performance requirements for arc welding robots
In the arc welding operation, the welding gun is required to track the movement of the workpiece bead and continuously fill the metal to form the weld. Therefore, the stability of the speed and the accuracy of the track during the movement are two important indicators.
Under normal circumstances, the welding speed can be 5 ~ 50mm / s, the track accuracy can be ± 0 · 2 ~ 0. 5mm. Since the attitude of the welding torch also has a certain influence on the quality of the weld, it is desirable to have the adjustable range of the welding gun posture as large as possible while the root canal is welded. There are other performance requirements, such as the swing function, the welding sensor (starting point detection, Weld seam tracking) interface function, welding gun anti-collision function.
The setting of the welding specification. Arcing and arcing parameters.
Swing function. Setting of swing frequency, swing, and swing type.
Welding sensor. Start point detection, interface function of the weld tracking sensor.
Welding gun anti-collision function. When the welding torch is subjected to abnormal resistance, the robot is stopped to avoid damage to the operator and tools.
Multi-layer welding function. This function can be used to realize automatic programming of the remaining layers after the first layer of welding teaching is completed.
Re-arcing function. After the arc is failed, it will be automatically retried. Therefore, the interruption of the work caused by the welding abnormality (failure of arc ignition) is eliminated, and the full-line parking caused by this is avoided to the utmost.
Torch correction function. When the torch collides with the workpiece, it can be corrected by simple operation.
Sticky wire automatic release function. If the wire is detected when the welding is finished, the wire is automatically re-energized, so it is not necessary to manually cut the wire.
Arc-breaking restart function. When a broken arc occurs, the robot will return to re-arc welding according to the specified amount of overlap. Therefore, no welding repair work is required.
Spot welding robot performance requirements
For the spot welding robot movement speed is an important indicator, it is required to be able to quickly complete multi-point positioning of small pitch (for example, positioning after 30-50mm pitch every 0.3-0.4 seconds); to ensure welding quality, positioning accuracy requirements Higher (generally ±0·25mm); and has a larger weight (50 ~ 100Kg) to carry the welding tongs with built-in transformer.
Main performance indicators of welding robots
The main performance indicators of the welding robot are shown by the Motoman-L10 produced by Yaskawa Electric Corporation of Japan as follows:
Name and model: Motoman-L10
Main use: arc welding
Category: Teaching Reproduction
Coordinate type: multi-joint
Degree of freedom: 5
Grab weight: up to 10kg (including clamps)
Feature:
The lady handbag we offer here can totally satisfy your need because there are 4 different styles you can choose. It is specially designed for women who often don't know how to choose the correct bag for shopping or outdoor activities.
Color: Customizd Color
Material: PU.
Adopted from high quality material, the handbag is durable with delicate looking.
Colorful Strap design makes it fashion women accessory.
Excellent workmanship shows its elegance and make your life more exquisite.
Great gift for your friends and family.
Lady Bags,Ladies Bag,Ladies Purse,Leather Ladies Bag
Ysure Leather case 24/7 Support : 86 13430343455 , https://www.ysurecase.com