A desktop dual-purpose drilling and tapping machine tool for five-wheel parts of automobiles

Abstract

The invention relates to a table type drilling and tapping dual-purpose machine tool for vehicle five-wheel fittings. The dual-purpose machine tool comprises a motor, a triangular belt, a machine tool main shaft, a main shaft lifting handle and a lifting mechanism, wherein the motor drives the machine tool main shaft to rotate through the triangular belt; and the main shaft lifting handle controls the lifting of the machine tool main shaft through the lifting mechanism. The dual-purpose machine tool further comprises an electric control box and a drilling and tapping changeover switch, wherein the electric control box and the drilling and tapping changeover switch are both fixed on the side wall of the lifting mechanism; a motor reversible circuit is arranged in the electric control box, and is connected with the motor; two travel limiting blocks are arranged on the main shaft lifting handle; the drilling and tapping changeover switch is started; the motor reversible circuit controls forward and reverse rotation of the motor to realize the conversion of drilling and tapping functions; and the two travel limiting blocks limit the drilling and tapping distance. Compared with the prior art, the dual-purpose machine tool has such advantages as high rigidity, long service cycle and high efficiency.

Description

technical field

[0001] The invention relates to a drilling and tapping machine, in particular to a desktop dual-purpose drilling and tapping machine tool used for five-wheel accessories of automobiles. Background technique

[0002] At present, most of the drilling and tapping machines produced by many manufacturers adopt full gear variable speed transmission. Because this type of machine tool has a large adaptability range, tapping can be completed from M4 to M30, so the structure is relatively complicated, and the spindle transmission box is small in size, which limits the space occupied by components, so the volume cannot be done. It is very large, which affects its rigidity. When it is necessary to tap small-aperture threads below M10, due to the high speed required (700 to 1500 rpm), and the frequent positive and negative rotations during work, the various shafts in the spindle gearbox are subjected to a large load instantaneously. Forward and reverse torsional impact....

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