Multi-head charge drill capable of automatically replacing head

Abstract

The invention discloses a multi-headed charging drill whose head can be changed automatically, which comprises two parts of a main shell body and an output supporting shell body, wherein at least two drills are arranged on the output supporting shell body, a rechargeable battery unit and a main switch are arranged on a handle portion of the main shell body, the main switch is connected with the battery unit and a direct current motor, a gear shifting box is arranged on the direct current motor, and a drive shaft is installed inside the gear shifting box. The invention is characterized in thata head changing controller PCB is connected between the rechargeable battery unit and the direct current motor, a little bevel gear is arranged on one end of the drive shaft, a big bevel gear which is matched with the little bevel gear is fixed intermediately inside the output supporting shell body, an output shaft is arranged on a drill head portion of the output supporting shell body, the head changing controller PCB plays a role of voltage reduction, and the voltage which is provided by the rechargeable battery unit is reduced to 4V-5V. The invention has the advantages that the head can bechanged automatically, structure is reasonable, operations are convenient, working efficiency can be increased, stability of transmission can be guaranteed, and preciseness while in work can be increased.

Description

Automatic head-changing multi-head rechargeable drill technical field The invention relates to an electric drill, in particular to a multi-head electric drill which can automatically change heads. Background technique At present, most of the electric drills that people generally use are single drill bits. During the operation, drill bits of different specifications are required for drilling holes with different requirements. At this time, the drill bits must be replaced. For some special operations, drill bits of different specifications need to be frequently used. At this time, it is very inconvenient to replace the drill bit, and it also reduces the work efficiency. Therefore, someone has developed a multi-head electric drill with replaceable heads, but it still needs to be operated with both hands. Manually pulling the drill bit is inconvenient when there is only one hand. , and most electric drills use three-section connecting shafts to complete the transmission, which...

AI Technical Summary

Problems solved by technology

The invention mainly solves the technical problems existing in the prior art, such as the inconvenient manual head change of the electric drill, unstable transmission and low precision of the electric drill, and provides a multi-head rechargeable drill with stable transmission and high precision automatic head change

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