Round working table driving and sliding base feed driving device

Abstract

The invention relates to a working part of a round working table driving and sliding base feed driving device, which is used for clamping and supporting a workpiece of a round working table of a second working part of a milling machine of a numerical control crank lathe on a crank arm of a crank. The round working table driving and sliding base feed driving device has a main function of driving the round working table for bearing and clamping the workpiece to rotatably feed in the milling machine of the numerical control crank lathe on the crank, and drives a rectangular sliding base to convey the workpiece in a length direction and directly feed. The working part of the round working table driving and sliding base feed driving device, which is designed according to the working characteristics, comprises a lathe body, a sliding base, a transmission box and a driving motor, wherein the sliding base is arranged on the lathe body; the transmission box and the driving motor are used for driving the sliding base to vertically move along an X axis; the round working table for bearing the workpiece, a driving transmission box and the driving motor are further arranged on the sliding base simultaneously; and the driving transmission box and the driving motor are used for driving the round working table to rotatably move around a C shaft.

Description

technical field [0001] The invention relates to a machine tool used in the ship heavy industry for internal milling of crank grooves of crank arms of heavy crankshafts, in particular to a circular worktable drive and a sliding seat feed drive device in the machine tool. Background technique [0002] The crankshaft of a marine low-speed diesel engine in the shipbuilding industry is the core functional component of a marine low-speed diesel engine, which is used to transmit huge torque and propel ships of tens of thousands to hundreds of thousands of tons. The material of the crankshaft is low-carbon alloy steel. Generally, the length of a single crankshaft is 5 to 15 meters and the weight is 30 to 200 tons. A few crankshafts with a weight of more than 300 tons are composed of two crankshafts connected in series. Due to its long length and heavy weight, it is impossible to adopt the assembly structure by adopting the method of integral forging of blanks. It is processed separ...

AI Technical Summary

Problems solved by technology

At present, only five crank slot milling machines of this kind have been produced in the world. If such a crank slot milling machine is imported, it will cost about 4 to 7 million euros. Due to the huge investment in equipment, the domestic shipbuilding industry still uses other machines. Crank lathes with low processing efficiency are used to process crank arms, and it takes a lot of foreign exchange to buy imported foreign crank lathes

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