Efficient direct current miter saw

Abstract

The invention discloses an efficient direct current miter saw. The efficient direct current miter saw comprises a base and a disc, a rocker arm is arranged on the rear side of the disc, and a cover shell is hinged to the upper side of the rocker arm. The efficient direct current miter saw is characterized in that the cover shell fixes a saw web shield through a rotary center, a connecting rod is hinged to the rocker arm, the front end of the connecting rod extends to a slide rail of the saw web shield, and an automatic opening and closing speed changing mechanism is further included to adjustthe opening speed of the saw web shield. The efficient direct current miter saw adopts connecting rod drive, during not working, the saw web shield is closed, and the saw web shield is open when working; the efficient direct current miter saw adopts the automatic opening and closing speed changing mechanism, the opening speed of the saw web shield is from slow to fast, the saw web shield is automatically closed when lifting up, and the closing speed is from fast to slow; and when not working, the saw web shield plays a protective role, and the shield is automatically opened in the work and automatically closed after stopping work without manual operation of the shield.

Description

technical field [0001] The invention relates to the technical field of miter saws and provides a high-efficiency DC miter saw. Background technique [0002] At present, Chinese patent literature discloses a miter saw, application number 201310496142.7, which includes a workbench for placing workpieces, a base for carrying the workbench, a saw blade for cutting workpieces, a motor for driving the saw blade to rotate, and a motor mounted on the base. The bracket for carrying the saw blade and the motor is carried on the seat, and the miter saw also includes an eccentric wheel. The bracket is rotatably installed on the non-rotating center of the eccentric wheel, and the eccentric wheel is rotatably installed on the base. When the eccentric wheel of the miter saw rotates, it will drive the bracket fixed at the non-rotating center of the eccentric wheel to move, and the movement of the bracket will move with the saw blade. In this way, the position of the saw blade relative to ...

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned prior art, the first document is a simple miter saw, which does not pay attention to the protection measures of the saw. The saw blade is exposed no matter whether it is in work or when it is in standby, and it is easy to cause the saw blade to be broken due to collision. Or the incident of the saw blade hurting people; the second document is designed with a shield, but the structure of the shield is too simple to achieve the effect of automatic opening when the saw blade is lifted and pressed down

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