With the automatic arc welding robot workstation, its technology has become increasingly mature, mainly has the following advantages: stability and improve welding quality; improve labor productivity; improve workers' labor intensity, can work in harmful environment; reduce the requirements for workers' operating technology; Shorten the preparation cycle of product modification and reduce the corresponding equipment investment.
Overhead sectional door most widely used for loading areas on all types of industrial premises and Designed with a curved overhead track, these vertically-opening sectional doors can be installed in areas with reduced head room. They provide heat and sound insulation with its composite panel construction.
The counterbalance and cable system provides quiet and straight forward operation for manual doors. Electric operation is available for larger applications that can incorporate many alternative operator options to suit all client requirements.
The standard outer panels are manufactured from 0.5mm thick, high quality zinc coating to BS EN 10147
For the best weather protection the sectional door panel has an interlocking hinged joint integrating a high quality seal the full length of the panel.
A counterbalance system is incorporated into the sectional overhead door to ensure efficient and effortless operation.
The counterbalance comprises of springs mounted on a steel shaft that are high tensile helical wound steel. It has been heat treated for enhanced performance for around 50,000 cycles.
Reducing shaft friction is achieved with the aid of brackets and guide rollers incorporating highest quality sealed bearings.
Welding robots mainly include two parts: robots and welding equipment. The robot consists of a robot body and a control cabinet (hardware and software). For welding equipment, for example, arc welding and spot welding are composed of welding power source (including its control system), wire feeder (arc welding), and welding torch (clamp). For intelligent robots, there should also be sensing systems such as laser or camera sensors and their controls. Figures 1a and b show the basic components of an arc welding robot and a spot welding robot.
Characteristics of arc welding robot
(1) Basic function of arc welding robot The arc welding process is much more complicated than the spot welding process. The tool center point (TCP), that is, the movement track of the wire end, the torch attitude and the welding parameters all require precise control. Therefore, the arc welding robot must have some functions suitable for arc welding in addition to the general functions described above.
Although in theory, a robot with five axes can be used for arc welding, it is difficult to use a five-axis robot for a complex-shaped weld. Therefore, unless the weld is relatively simple, you should try to use a 6-axis robot.
In addition to the above-mentioned Figure 2, the arc welding robot should be able to be close to the teaching trajectory when it is used for "Zigzag" or small diameter round weld welding. It should also have different swing style software functions. It is selected for programming, for swing welding, and the swing is at the pause point in each cycle, and the robot should also automatically stop moving forward to meet the process requirements. In addition, there should be contact locating, automatic search for the starting position of the weld, arc tracking and automatic re-arcing.
(2) Welding equipment for arc welding robots Arc welding robots mostly use gas shielded welding methods (MAG, MIG, TIG), common thyristor, inverter, waveform control, pulse or non-pulse welding power supplies Can be mounted on the robot for arc welding. Since the robot control cabinet is digitally controlled, and the welding power source is mostly analog control, an interface needs to be added between the welding power source and the control cabinet. In recent years, foreign robot manufacturers have their own specific matching welding equipment. The corresponding interface boards have been broadcasted in these welding equipments, so there is no additional interface box in the arc welding robot system in Figure 1a. It should be pointed out that the arc time accounts for a large proportion in the working cycle of the arc welding robot. Therefore, when selecting the welding power source, the capacity of the power source should generally be determined according to the continuous rate of 100%.
The wire feeding mechanism can be mounted on the upper arm of the robot or outside the robot. The former hose between the welding torch and the wire feeder is shorter, which is beneficial to maintain the stability of the wire feeding, while the latter hose headmaster, when the robot Sending the torch to certain positions, so that the hose is in a multi-bend state, will seriously affect the quality of the wire. Therefore, the installation method of the wire feeder must consider the problem of ensuring the stability of the wire feed.
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Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.pvchighspeeddoor.com