Screw fastening device

Abstract

The invention discloses a screw fastening device. The screw fastening device is mainly composed of an electric screw knife, an upper pinch plate, a shaft, a lower pinch plate, a drive gear, a control ring and a fastening assembly. A cavity is formed by connecting the upper pinch plate, the lower pinch plate and the control ring. The shaft penetrates through the cavity and is arranged on the cavity. The shaft is provided with the drive gear, the electric screw knife is connected with the shaft, an upper force limiting block and a lower force limiting block are respectively connected with a force limiting spring and are arranged in the upper pinch plate and the lower pinch plate respectively, a transmission gear is in matched connection with the drive gear, a screw knife head is in matched connection with the transmission gear and is fixed on the upper force limiting block and the lower force limiting block, the lower end of a guide rail is provided with a screw clamp, a returning spring is arranged inside the guide rail, the upper portion of the returning spring is connected with a sliding block, and the other end of the sliding block is connected with the control ring. According to the screw fastening device, more than two screws can be fastened on the same working table board at the same time, and therefore labor efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of fastening equipment, in particular to a device for fastening screws on workpieces. Background technique [0002] In the production and assembly process of machinery, electronics, etc., there are many cases of firmness of screws. Generally, screwdrivers or electric screwdrivers are used. With the development of technology, the structure of screw fastening devices has changed a lot, and the functions they have are becoming more and more. Many, such as Chinese patent CN200920010417.0 discloses a screw fastening device, which realizes mechanical actions in the horizontal, vertical and vertical directions, and the screwdriver head can reach various positions of the workpiece. But in these existing technologies, most of the firming devices can only firm one screw at a time. When many symmetrical screws need to be fastened for the same worktable, they need to be operated one by one. The firmness of the screws i...

AI Technical Summary

Problems solved by technology

But in these existing technologies, most of the firming devices can only firm one screw at a time. When many symmetrical screws need to be fastened for the same worktable, they need to be operated one by one. The firmness of the screws is difficult to maintain consistently

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