Heavy H-steel automatic assembling machine

Abstract

The invention relates to a heavy H-steel automatic assembling machine, comprising a main machine, a pre-centering device, an input and output roller table, a hydraulic station and an electric control system; wherein the main machine comprises an upper gantry and a base. The heavy H-steel automatic assembling machine is characterized in that the base comprises the following components fixedly arranged thereon: a main transmission roller, a driven roller, a passive roller, a welding gun fixed device, an aligning device and a centering mechanism; the main transmission roller is connected with a main transmission reducer by a main transmission shaft; the centering mechanism comprises three groups of wing plate centering devices and two groups of web centering devices that are arranged at two sides of the base symmetrically; the three groups of wing plate center devices are connected with a wing plate hydraulic motor by a turbine reducer; and the two groups of web plate centering devices are connected with a web hydraulic motor by the turbine reducer. The heavy H-steel automatic assembling machine has the advantages of large centering driving power, good transmission precision and reliability, high centering synchronization and centering precision and convenient and reliable adjustment.

Description

technical field [0001] The invention relates to a metal processing mechanical equipment, in particular to a heavy-duty H-shaped steel automatic assembly machine. Background technique [0002] With the rapid development of the economy and industrialization process, steel structure buildings are more and more used due to their advantages of low cost and fast construction speed. Therefore, the demand for welded H-shaped steel as the main supporting structure of steel structure buildings is also increasing. getting bigger. [0003] The H-beam welding production line is mainly divided into light steel wire and heavy steel wire. Whether it is light steel wire or heavy steel wire, the main equipment is: CNC cutting machine, H-beam assembly machine, gantry welding, cantilever welding, H-beam welding Flange straightening machine and H-beam shot blasting machine. The main difference between light steel wire and heavy steel wire is: light steel wire is composed of a single device, an...

AI Technical Summary

Problems solved by technology

Most of the early H-beam production line equipment relied on imports. The high equipment cost and long delivery cycle have become important factors restricting the development of steel structure products. Moreover, the specifications of H-beams in use are gradually developing towards larger specifications, even on standard products. Slightly improved, but the user has to use the method of driving assistance operation to solve the defect of insufficient equipment capacity, which brings a lot of trouble to the production and use of the user, and becomes an important bottleneck restricting the development of steel structure products in the future

[0005] The centering mechanism of the assembly machine in the prior art adopts a hydraulic cylinder to push the rack, the rack drives the gear and the sprocket, and then drives the screw nut through the chain transmission, and the workpiece is centered and positioned by the centering wheel, and the centering wheel Adjusting the centering accuracy through the eccentric shaft has the following disadvantages: (1) Due to the limited stroke of the hydraulic cylinder, the stroke must be enlarged through the speed-increasing transmission mechanism, which reduces the driving torque of the centering mechanism and cannot adapt to large-scale H Need for centering of section steel; (2) The transmission accuracy of sprocket and chain transmission is low, and because the chain is easy to elongate, the centering mechanism often causes the chain to lose teeth, which destroys the original centering accuracy; (3) Eccentricity The fastening of the shaft is unreliable, and looseness and misalignment often occur due to collision and vibration, which makes the adjusted centering position shift, thereby reducing the centering accuracy

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