High-efficiency glass rechargeable electric drill with pretreatment function

Abstract

The invention discloses a high-efficiency glass rechargeable electric drill with a pretreatment function. The high-efficiency glass rechargeable electric drill comprises a handle, a machine body, an electric drill chuck, a drill bit and a pretreatment device. The machine body and the handle are connected into an integrated structure. The electric drill chuck is mounted on the machine body. The electric drill chuck is provided with the drill bit. The electric drill chuck is hinged to the pretreatment device. The pretreatment device is composed of a moving rod, a nut, an adjusting screw, a bladeand a limiting block. One end of the moving rod is connected to the side surface of the electric drill chuck through a hinge. A nut is welded to the other end of the moving rod. The nut is in threaded connection with the adjusting screw. The adjusting screw and the moving rod are perpendicular to each other. The electric drill has the beneficial effects that pre-punching positions can be pre-cutthrough the pre-treatment device in advance, the condition of punching rupture is avoided, through a positioning support plate, the cutting accuracy can be improved, manual position errors can be prevented, through relative rotation of a stop dog, an alarm can be given out when the cutting depth reaches a predetermined value, frequent stopping for observation is avoided, and the operation efficiency is improved.

Description

technical field [0001] The invention relates to the field of electric drills, in particular to a high-efficiency glass rechargeable electric drill with pretreatment. Background technique [0002] The electric drill rotates a tool capable of drilling. During the use of the electric drill, it often drills holes in glass, wood, metal, etc. [0003] Because glass and ceramic tiles are fragile products, there will be cracks if you do not pay attention when drilling. Generally, it is necessary to pre-cut the circle of drilling. The existing pre-cutting is carried out in the form of an inclined drill bit. The operation has certain Difficulty, easy to shift, resulting in unattractive roundness of the drilled holes, while pre-cutting needs to stop constantly to observe the cutting depth during work, which affects the work process and reduces work efficiency. Contents of the invention [0004] The main purpose of the present invention is to overcome the deficiencies of the prior ar...

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Problems solved by technology

[0003] Because glass and ceramic tiles are fragile products, there will be cracks if you do not pay attention when drilling. Generally, it is necessary to pre-cut the circle of drilling. The existing pre-cutting is carried out in the form of an inclined drill bit. The operation has certain Difficulty, easy to shift, the roundness of the punched hole is not beautiful, and the pre-cutting needs to stop constantly to observe the cutting depth during work, which affects the work process and reduces work efficiency

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