Conveying device and method for high-frequency heat treatment bent pipe

Abstract

The invention discloses a conveying device and method for a high-frequency heat treatment bent pipe. The conveying device comprises a base, a sliding plate, a cam, a locating roller shaft, a locating roller, a rotary disc, a connecting rod mechanism, an air cylinder supporting plate, a plurality of air cylinders, a plurality of bent pipe brackets and an induction coil. Guide rails are arranged on the two sides, in the length direction, of the upper end face of the base. Guide grooves are formed in the two sides of the lower end face of the sliding plate, and the sliding plate is formed in the guide rails in a sliding manner. The cam is a semi-circular plate, a center hole is formed in the cam, a rotary disc shaft and bearing seat is arranged in the hole, a bearing and a rotary disc shaft are arranged in the rotary disc shaft and bearing seat, and the lower end of the rotary disc shaft is fixed to the center of the sliding plate. One end of the cam is connected with a spring, and the other end of the spring is connected to the sliding plate. The locating roller shaft and the locating roller are arranged on one side of the center of the upper end face of the base. The rotary disc is rectangular and is provided with a center through hole, and the rotary disc is arranged on the rotary disc shaft and bearing seat in a sleeving manner and connected with the rotary disc shaft and bearing seat. The connecting rod mechanism is arranged on the other side of the sliding plate and comprises a connecting rod shaft and bearing seat, a connecting rod shaft and a connecting rod. The air cylinder supporting plate is in an L shape and is arranged on the upper end face of the rotary disc through a plurality of supports. The multiple air cylinders are arranged below the air cylinder supporting plate and arranged along the L shape, and the ends of piston rods of the air cylinders stretch out of the air cylinder supporting plate. The multiple bent pipe brackets are arranged on the piston rods of the air cylinders correspondingly. The induction coil is arranged on the outer side of the conveying track of the bent pipe brackets.

Description

technical field [0001] The invention relates to heat treatment technology, in particular to a conveying device and method for high-frequency heat treatment of bent pipes. Background technique [0002] At present, most of the frameworks of commercial large buses are welded and assembled with square and rectangular bent pipes. The amount of square and rectangular pipes used for large and medium-sized buses is 2 tons, and 60-70% of them need square and rectangular bent pipes. In order to improve the strength of the body, the square rectangular tube needs to be quenched and heat treated after bending. Currently commonly used quenching methods are: [0003] After being heated and kept in the furnace, it is cooled rapidly in the quenching medium to realize quenching. This traditional heat treatment method has high energy consumption and is not environmentally friendly. [0004] Induction heating is adopted, and the inductor is generally a hollow copper tube inputting intermedia...

AI Technical Summary

Problems solved by technology

But for bent pipe parts, the problem of workpiece transmission is difficult to solve

[0005] Chinese patent 200720077726.0 proposes a conveying device for a roller-type metal pipe heat treatment production line, but it can only be used for conveying straight pipes

Chinese patent 201010592769.9 discloses the "feeding device of long U pipe bender", which is used for processing long U bend pipe, but it only involves the transmission of straight pipes before bending, and can only be used for conveying straight pipes

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