Precise front axle crankshaft composite full-automatic hot die forging production line

Abstract

The invention discloses a precise front axle crankshaft composite full-automatic hot die forging production line. The production line mainly comprises eight forging devices, nine robots and four transfer tables, wherein hot bars are fully automatically transferred between the forging devices according to different stations through the robots by means of the transfer tables; an R2 robot and a roll forging hand are in butt joint in the air; forging stations of a ten-thousand-ton hot die forging press are transversely arranged; a die frame of the hot die forging press adopts a composite die frame structure of a main die frame and a standby die changing frame; the main die frame is replaced from a front window, and the standby die changing frame is pulled out from a side window of the hot die forging press, so that quick replacement is realized; and a spraying robot is arranged on the other side of the hot die forging press to realize automatic spraying. The production line can be used for producing front axles and crankshafts, and is a front axle and crankshaft composite production line; and the transfer table capable of accurately positioning and detecting incoming materials is adopted in the whole line, and the bus control mode is adopted to realize automatic production in the whole line, so that the production efficiency is high, and the failure rate is low.

Description

technical field [0001] The invention relates to a precision front axle and crankshaft composite fully automatic hot die forging production line, especially used in the field of forging, which does not require personnel to participate in the whole process, and the hot rod material is completely transferred between the forging equipment according to different stations by a robot with the aid of a transfer table. Fully automatic production line for fully automatic transfer and conveying. Background technique [0002] With the deepening of industrial transfer and the development of my country's high-end equipment manufacturing industry, some domestic forging enterprises have made great progress in forging technology, forging equipment level and forging capacity by absorbing and introducing technology, strengthening research and development cooperation and technology accumulation. The main presses for the forging production of automobile front axles and crankshafts mainly include...

AI Technical Summary

Problems solved by technology

The main presses for the forging production of automobile front axles and crankshafts mainly include friction presses, electric screw presses, hot die forging presses, etc. Among them, the friction presses have simple structure and low price, but have low control accuracy, high failure rate, and automation. The degree is low, and it has become an obsolete product; the electric screw press has a simple structure and high controllability, but its anti-eccentric load capacity is poor, its efficiency is low, and its application range is limited. The machine is widely used. It has the advantages of high frame rigidity, strong anti-eccentric load capacity, and belongs to static pressure forging. At the same time, due to the fast movement speed of the slider, the forged product quality is good and the production efficiency is high. It is widely used in the front axle crankshaft compound production line. , but this front axle and crankshaft production line basically continued the German technology in the 1980s. This technology has the following five defects: 1) Forgings are transported and transported by hot die forging hands and conveyor belts, and the forgings are placed on the press Loading, unloading, and shifting between stations are realized by hot die forging hands, and the transfer of forgings between presses is realized by conveyor belts

However, the hot die forging hand is a coordinate structure, with low degrees of freedom, inflexible operation, and high failure rate; while the positioning accuracy of the conveyor belt is low, and the forging conveying time is long

Therefore, the forging handling and conveying method using hot die forging hands and conveyor belts has the disadvantages of high failure rate and low production efficiency

2) The signal transmission between devices adopts a point-to-point mode, relying on manual judgment whether to enter the next automatic operation, the degree of automation is low, and the production efficiency is low

3) When changing the mold, it is necessary to pull out the entire mold base, replace the new mold, push the mold base into the press, and then heat the mold to the temperature required for forging before continuing the forging production. The mold replacement time needs 6- 8 hours, reducing the efficiency of production line conversion and mold repair

4) Due to the large difference in shape of the front axle and the crankshaft, mold bases need to be equipped separately, and the manufacturing cost of the mold bases is high

5) Mold cooling and lubrication adopts artificial spraying method, the working environment is harsh, and the product quality is unstable

This technology requires manual participation in the production process, low degree of automation, low production efficiency, high failure rate, and difficulty in improving product quality, which can no longer meet the current market demand.

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