Application of the hottest welding robot system in

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Welding robot system in automobile chassis welding, we will use our future actions to repay everyone. We hope that people from all walks of life and users from all walks of life will supervise and give advice.

welding robots are most suitable for multi variety and high-quality production methods. At present, they have been widely used in the automobile manufacturing industry. Robot welding is used in automobile chassis, seat frame, guide rail, muffler and hydraulic torque converter, In particular, it has been widely used in the welding production of automobile chassis. The chassis parts of Santana, Passat, Buick, sail, polo and other cars produced domestically, such as rear axle, subframe, rocker arm, suspension, shock absorber and so on, are mostly stress-bearing safety parts based on MIG welding process. The main components are welded by stamping, with an average plate thickness of 1.5 ~ 4mm. The welding is mainly in the form of lap joint and fillet joint. The welding quality requirements are quite high, and its quality directly affects the safety performance of cars. After robot welding, the appearance and internal quality of welded parts are greatly improved, the stability of quality is ensured, the labor intensity is reduced, and the working environment is improved

common application modes of robot welding system

according to the different characteristics of the fixture layout of the welding robot system in the welding of automobile chassis parts, and the different configurations of external shafts and other peripheral facilities, the welding robot system can be divided into the following forms

schematic diagram of workstation of slide rail + welding robot

workstation of slide rail + welding robot

(see Figure 1) two sets of clamps are fixed on the sliding trolley, and the two clamps with workpiece are driven by the air cylinder to enter the robot welding area in turn for welding, and the operator loads and discharges materials on the other side. The two workstations are crossed to synchronize the robot welding time with the workpiece loading and unloading time, which can save the rotation time of the positioner. The welding robot system in the form of double fixture slide rails uses two pairs of slide rails to feed the welding robot in turn, which has high reliability, but has certain restrictions on the overall dimensions of the workpiece to be welded. Generally, the diameter of the welding workpiece is less than 0.6m

it has been applied to Santana rear axle welding production line and polo lower rocker arm welding production line

schematic diagram of single (double) fixture fixed + welding robot workstation

single (double) fixture fixed + welding robot workstation

(see Figure 2) the structure is simple. The fixture is displaced by a positioner to realize welding at different positions of the robot welding gun. The system failure rate is low, but the robot is in a waiting state during workpiece loading and unloading, so the utilization efficiency of the robot is generally less than 80%, so it is rarely used on new welding lines

the system has been successfully applied in Passat rear axle welding production line and Santana front suspension welding and production line

schematic diagram of rotary worktable with positioner + welding robot workstation

rotary worktable with positioner + welding robot workstation

(see Figure 3 for bending resistance and compression resistance) this form is composed of two pairs of clamps with positioner and a turntable, with compact structure. The two sets of clamps can carry out different welding procedures to achieve different process requirements. When the robot welds the workpiece on one fixture, the operator can load and unload the workpiece on the other fixture. The utilization rate of the robot is high, generally greater than 90%, which is the most widely used form at present

this system is widely used in Buick subframe welding line, sail rear axle welding line and Passat subframe welding line

schematic diagram of handling robot + welding robot workstation

handling robot + welding robot workstation

(see Figure 4) the main advantage reflected by the cooperation between the two robots is that they can adapt to the welding of various irregular welds. However, the disadvantage is that the failure rate is high due to the uncoordinated cooperation between the two robots. Therefore, this kind of form needs to reasonably arrange the movement form of the robot in order to maximize the production efficiency

schematic diagram of coordinated external axis + welding robot workstation

coordinated external axis + welding robot workstation

(see Figure 5) this form is widely used. In actual welding, the circumferential weld is a common one, and the common positioner can not adapt to 360 ° welding. In this case, the coordinated outer shaft and robot can easily realize the welding of circumferential weld above 360 °

this form is used in the welding of Passat rear axle stabilizer bar and Baltic rear axle assembly

schematic diagram of robot central workstation

robot central workstation

(see Figure 6) the system consists of two turntables and four sets of positioners, which can easily weld more than two products. Especially for the uneven production tasks, it can be reasonably allocated to improve the utilization of the robot. However, the system occupies a large amount of space resources and has a high failure rate in electrical equipment, so it is not widely used at present. Only in the rear axle welding project between perio and Siena, its products include: pilot test

schematic diagram of robot welding automatic line

robot welding automatic line

(see Figure 7) robot welding automatic line is the main development direction of car chassis welding in the future. This form is composed of a plurality of robot welding systems and suspended conveying chains

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