Profile milling device of camshaft

Abstract

The invention discloses a device for processing a camshaft, which comprises a milling mechanism, a driving mechanism, a counterweight mechanism and a base, wherein the base is arranged on a workbench of a machine tool, the milling mechanism is fixed below a cross beam of the machine tool, and a milling cutter rod and a profile modeling idler wheel mechanism are arranged on the lower side of a hanging rack in parallel. The driving mechanism is arranged below the milling mechanism, and the base is fixed on the workbench of the machine tool. The driving mechanism comprises a motor speed reduction transmission mechanism, a processed camshaft transmission mechanism and a cam profile modeling mechanism, the output end of the motor speed reduction transmission mechanism is connected with the processed camshaft transmission mechanism and the cam profile modeling mechanism, and the counterweight mechanism is arranged below one end of the workbench of the machine tool. The device can complete one section of cam outer profile line of the camshaft by carrying out one-time processing, thereby having high processing efficiency, stable line, simple operation, stable processing quality and convenient maintenance.

Description

technical field [0001] The invention relates to a profiling processing device, in particular to a profiling processing device for processing a plurality of axially arranged cams with different outer contour profiles, belonging to the technical field of metal cutting processing. Background technique [0002] The camshaft referred to in the present invention is a part used to control the relationship between exhaust gas, air intake and fuel injection of a diesel engine, such as figure 1 As shown, the camshaft 3 of the diesel engine is axially arranged with three cams Ⅰ31, Ⅱ32, and Ⅲ33 with different outer contour lines, which respectively control the timing of exhaust, intake air, and fuel injection. Cam Ⅰ31, cam Ⅱ32 and cam Ⅲ33 The outer contour line is used to precisely control the time relationship of the aforementioned three. The machining process of the diesel engine camshaft 3 is as follows: after rough milling, most of the margins of cam I31, cam II32 and cam III33 are...

AI Technical Summary

Problems solved by technology

Existing diesel engine camshafts are milled on CNC machine tools. After a certain number of camshafts are processed, the outer diameter of the milling cutter wear becomes smaller. At this time, it is necessary to modify the program in time to process qualified products. It is inconvenient to process camshafts. The processing cost of CNC machine tools is high

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