Welding automatic adjusting device for multifunctional seam welder

Abstract

The invention discloses a welding automatic adjusting device for a multifunctional seam welder. A master gear(1) is fixed on the outer surface of a seam welding cylinder(3); an auxiliary gear(2) is meshed with the master gear(1), and a rotary shaft(5) in the center of the auxiliary gear(2) is supported by a bearing(7) arranged in a bearing block(6); one end of the rotary shaft(5) is fixedly connected with the auxiliary gear(2), while the other end is connected with an eccentric wheel(8) connected with a connecting rod(9); one end of the connecting rod(9) is fixedly connected with the eccentric wheel(8), while the other end is connected with a movable electrode(10), which is opposite to a fixed electrode(11) of the seam welder; and the seam welding cylinder(3) drives the rotary shaft(5) to rotate through the master gear(1) and the auxiliary gear(2) orderly, the rotary shaft(5) drives the eccentric wheel(8) to rotate, and the eccentric wheel(8) drives the movable electrode(10) to move around the fixed electrode(11) through the connecting rod(9).

Description

technical field [0001] The invention provides a welding automatic adjustment device for a multifunctional seam welding machine. Background technique [0002] Seam welding machine is an important machine used to form the steel skeleton of cement products (such as drainage pipes, pipe piles for high-rise buildings and some chemical products). It is widely used in cement products and cement products because of its reliable welding of circular cages and high efficiency chemical industry. The biggest problem to be solved by using seam welding to form square and triangular steel cages is to ensure the consistency of the pressure of each solder joint on different circumferences. [0003] At present, there are two kinds of roll welding machines for producing square cages in China: the first one: first form the cage and then weld: this method is to roll the cold-drawn steel wire to the 4 or 8 main steel rods of the square fixed electrode , and then use 4 (8) cylinders to drive the ...

AI Technical Summary

Problems solved by technology

This kind of welding machine can complete the forming of the square pile cage, but the disadvantages are very obvious

(1) Due to the limitation of the actuating speed of the cylinder, the welding efficiency of this seam welding machine is very low, and the winding speed is generally 100-120 points / minute

(2) Due to the inability to weld while winding the ribs, the actual length of the pay-off exceeds the side length of the square, and the shape of the formed cage is between a square and a circle, which does not meet the national standard

Spot welding under live conditions, the active electrode wears out severely

(3) After spot welding, the stress on the steel wire between the connected welding points is very large, and there will be automatic explosion welding after forming a cage

(4) This type of equipment uses cylinders to drive movable electrodes to complete welding. The number of cylinders and solenoid valves is too large and the movements are too frequent. The mechanical structure is complex and the equipment failure rate is extremely high.

Its disadvantages: (1) Affected by the mechanical structure, the speed of the welding wheel rolling should not be too fast, too fast and easy to pull over

(2) The pressure control of the welding points on different circumferences is uneven, and two sets of welding electrical control mechanisms are required to control the welding current of the steel bars on different circumferences, otherwise it is easy to cause broken bars

Unable to solve the high-current conduction problem of the rotating welding wheel, the failure rate is extremely high

Neither of the above two types of devices has been widely promoted

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