Multi-station machine tool for machining air intake and exhaust rocker arms of automobile and air intake and exhaust rocker arm machining method thereof

Abstract

The invention discloses a multi-station machine tool for machining air intake and exhaust rocker arms of an automobile. The multi-station machine tool comprises workpiece air intake and exhaust rocker arms and a disc type turntable base which is placed on a worktable of the machine tool and can turn around an axis, wherein a plurality of machining stations which are located through workpiece air intake and exhaust rocker arm holes are distributed on the disc type turntable base, the workpiece air intake and exhaust rocker arms are placed at the machining stations, locating members are plugged into the rocker arm holes for location, and clamping devices which can be used for automatically plugging / unplugging the locating members into / from the workpiece rocker arm holes are further arranged at the machining stations. With the adoption of the technical scheme of the invention, the clamping devices are located through the rocker arm holes, one-step clamping and continuous machining are carried out, and the machining accuracy of the rocker arms is guaranteed; the multi-station machine tool in the technical scheme of the invention has the advantages that the locating accuracy is high, the compatibility is strong, the rigidity is good, multiple actions in machining can be realized, the machining accuracy is guaranteed, and the defects in the prior art that a lot of people and repeated clamping are required, the requirements on the rigidity of the clamping devices are very high, and the machining accuracy of the workpieces is still hard to guarantee due to the fact that the rocker arm workpieces are machined by adopting a disc type multi-station machine tool are overcome.

Description

technical field [0001] The invention belongs to the field of mechanical manufacturing, and more specifically, the invention relates to a multi-station machine tool for processing intake and exhaust rocker arms of automobiles and a method for processing the intake and exhaust rocker arms. Background technique [0002] The shape of the intake and exhaust rocker arms of automobiles is irregular and requires high precision. Most of the production of automobile intake and exhaust rocker arms in the prior art adopts disc-type multi-station machine tools, which are arranged according to a single process, and the rocker workpieces are processed by multiple clamping , this processing method has many procedures, not only requires a large number of personnel, but also has high requirements on the rigidity of the fixture, and the machining accuracy of the workpiece is still difficult to guarantee; while the disc-type multi-station machine tool used in the prior art processes the rocker a...

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Problems solved by technology

[0002] The shape of the intake and exhaust rocker arms of automobiles is irregular and requires high precision. Most of the production of automobile intake and exhaust rocker arms in the prior art adopts disc-type multi-station machine tools, which are arranged according to a single process, and the rocker workpieces are processed by multiple clamping , this processing method has many procedures, not only requires a large number of personnel, but also has high requirements on the rigidity of the fixture, and the machining accuracy of the workpiece is still difficult to guarantee; while the disc-type multi-station machine tool used in the prior art processes the rocker arm workpiece, using the rocker Arm hole positioning, because it involves signal transmission stability, it is difficult to realize the multi-step action of the fixture during rotation, so it is impossible to realize the clamping and pin removal of the rocker arm by the fixture when the disc-type multi-station machine tool is rotating, if the rocker arm hole is not used Positioning is also difficult to guarantee the accuracy of the product. This kind of mass production not only requires a large number of personnel to operate, but also the accuracy of the parts cannot be guaranteed.

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