Drilling machine used for new energy automobile machining and provided with automatic idling protection motor

Abstract

The invention relates to the technical field of machining, and discloses a drilling machine used for new energy automobile machining and provided with an automatic idling protection motor, the drilling machine comprises a drill bit, a rotating shaft is movably connected to the outer side of the drill bit, first sliding grooves are formed in the rotating shaft at equal intervals, and electric contacts are fixedly connected to the inner left walls of the first sliding grooves; a sliding block is elastically connected to the inner right wall of the first sliding groove, an electric contact piece is fixedly connected to the outer left side of the sliding block, a groove is formed in the sliding block, a magnetostriction rod is fixedly connected to the interior of the groove, first clamping grooves are formed in the positions, corresponding to the upper end and the lower end of the magnetostriction rod, of the first sliding groove, and an electromagnet is arranged in the rotating shaft; the electromagnet is located on the outer side adjacent to the first clamping groove. According to the magnetostrictive effect and the principle that the volume of the electroactive polymer changes due to electrical stimulation, the limiting rod is separated from the limiting groove, the rotating shaft and the drill bit are further made to move freely, and therefore the motor is protected against short circuit, the service life is prolonged, the safety coefficient is increased, and practicability is improved.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a drilling machine with an automatic idling protection motor used for processing new energy vehicles. Background technique [0002] Drilling machine is a general term for machinery and equipment that leaves cylindrical holes or holes on the target by means of rotary cutting or rotary extrusion using tools that are harder and sharper than the target. By drilling precision parts , to achieve the desired effect. [0003] Existing drilling machines often work because the object to be drilled is too hard, causing the drill bit to get stuck in the target object, while the internal motor of the drilling machine is overloaded and continues to work, the rotating shaft tends to move, generating a lot of heat, which in turn leads to drilling Machine short circuit, causing fire, reducing the service life of the drilling rig, and reducing the safety factor. Contents of the in...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the invention provides a drilling machine with an automatic idling protection motor for processing new energy vehicles, which has the advantages of no short circuit, long service life of the drilling machine, high safety factor, etc. The problem of short life and low safety factor

Images