Crankshaft milling machining center

Abstract

The invention discloses a crankshaft milling machining center, and relates to a milling machining machine tool for machining parts such as crankshafts. The center involves a left main shaft, a vertical milling shaft, a right main shaft and a clamping device used for clamping a crankshaft; a workbench of the clamping device is provided with two centering clamping mechanisms arranged left and right, an angle positioning mechanism, an axial positioning mechanism and two supporting frames; the centering clamping mechanisms can slide upwards in the axial direction of the crankshaft; the angle positioning mechanism can slide in the radial direction of the crankshaft; and the axial positioning mechanism is arranged on the workbench in the area between the two centering clamping mechanisms. According to the center, the left and right machining center main shafts and left and right magazine tools are adopted, automatic tool changing machining is realized, a vertical milling head is matched, an angle positioning surface is milled, and the full-automatic machining of the two ends of the crankshaft is realized by one-time clamping, so that the machining precision is improved, the machining efficiency is improved, moreover, the unbalance amount after crankshaft machining can be greatly reduced, and the final machining quality of the crankshaft is improved.

Description

technical field [0001] The invention relates to a milling and machining machine tool for crankshaft parts, which is used for milling end faces at both ends of a crankshaft, drilling a center hole, drilling a bearing chamber hole, setting the outer circle of the large and small heads, and the angular positioning surface. Background technique [0002] At present, with the rapid development of my country's shipbuilding and automobile industries, the demand for engine crankshafts is increasing rapidly. The machining of both ends of the crankshaft is the first process of crankshaft machining. The machining process is complex and there are many types of tools. It requires accurate positioning and high machining accuracy. The machining accuracy directly affects the final quality of crankshaft machining. However, my country is still lagging behind in the processing of crankshafts, especially the processing of both ends of crankshafts for automobiles, heavy trucks, and small diesel e...

AI Technical Summary

Problems solved by technology

For example, the crankshaft of a heavy truck, the two ends are processed on three machine tools in different steps, which are an ordinary milling machine, a lathe, and a milling machine. The processing can only be completed after three times of clamping and positioning conversion, which leads to The machining efficiency of the crankshaft is low, the errors of the orientation angle and eccentricity of the crankshaft increase greatly, the machining accuracy of the crankshaft is poor, the dynamic balance error is large, and the engine performance is far lower than that of foreign advanced manufacturers

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