Auxiliary supporting component for detecting crank throw included angle of crank shaft

Abstract

The invention discloses an auxiliary supporting component for detecting a crank throw included angle of a crank shaft. The auxiliary supporting component comprises an elastic support and a rigid support, wherein the elastic support comprises a first C-shaped bracket, a first sliding sleeve and a first sliding shaft; a first base is arranged at the bottom of the first C-shaped bracket and is used for being placed on a detection platform; the first sliding sleeve is arranged at the upper end of the first C-shaped bracket; a pressure spring is arranged in the first sliding sleeve; the first sliding shaft is arranged in the first sliding sleeve and is driven by the pressure spring to slide up and down; the rigid support comprises a second C-shaped bracket, a second sliding sleeve, a second sliding shaft and a first adjusting screw; a second base is arranged at the bottom of the second C-shaped bracket and is used for being placed on the detection platform; the second sliding sleeve is arranged at the upper end of the second C-shaped bracket; the second sliding shaft is arranged in the second sliding sleeve; the first adjusting screw is used for adjusting the height of the second sliding shaft in the second sliding sleeve. According to the supporting component, the crank throw height of the crank shaft can be adjusted, and the crank shaft can be stably and accurately stopped in a certain corner phase position.

Description

technical field [0001] The invention relates to the detection of the geometric characteristics of crankshaft products, in particular to an auxiliary support assembly for detecting the included angle of the crankshaft of the crankshaft. Background technique [0002] In the manufacture of internal combustion engines (automobiles), it is necessary to inspect the geometric characteristics of the crankshaft. For example, it involves the detection of crankshaft crank angle items (such as the requirement of a crankshaft crank angle item of 120°±20′ for a certain model). At present, special measuring equipment is generally used or measured on a general-purpose flat panel. For small-sized crankshafts, there is no problem in measuring with special measuring equipment, but for large crankshafts, the travel of general measuring equipment is limited, and only a flat plate can be used for measurement. Again because the hardness of crankshaft material can't be improved further, add whole...

AI Technical Summary

Problems solved by technology

Because the hardness of the crankshaft material cannot be further improved, and the weight of the whole crankshaft is large, the whole crankshaft cannot be supported by a common double V-shaped support assembly but must adopt a roller support assembly

However, this roller support assembly has a characteristic, that is, the crankshaft can rotate but cannot stop and accurately locate the angle phase (the crankshaft may rotate on its own after the hand is released), and it is impossible to measure the height of the crankshaft axis relative to the flat plate

The existence of this contradiction is not conducive to quality control

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