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In modern industrial production, the electric screwdriver (commonly called “electric batch” or “screwdriver”) is an indispensable tool in assembly operations. According to the level of automation, electric screwdrivers are mainly divided into two categories: fully automatic electric screwdrivers and semi-automatic electric screwdrivers. This article will provide a detailed comparison of the characteristics and structures of these two types of screwdrivers, and in particular—using the Danikor fully automatic electric screwdriver as an example—explore its advantages in high-precision assembly.

I. Characteristics and Structure of Semi-Automatic Electric Screwdrivers

Semi-automatic electric screwdrivers have a relatively simple structure, mainly composed of a motor, a reduction mechanism, and a clutch. During the tightening process, when the torque reaches a preset value, the clutch automatically slips, causing the bit to stop rotating. However, the motor does not stop working immediately, so a “da-da” sound is produced. Although this design can meet basic torque-control requirements, its accuracy is relatively low, and it cannot monitor torque changes in real time during the tightening process.

Advantages

Lower cost: Due to its simple structure, the manufacturing cost of semi-automatic electric screwdrivers is relatively low.

Disadvantages

Limited accuracy: It cannot monitor torque changes in real time, resulting in lower tightening accuracy.

Higher noise: When the clutch slips, an obvious “da-da” sound is produced, which may have a certain impact on the working environment.

Difficult data traceability: It cannot record detailed data during the tightening process, making it hard to meet the requirements of high-precision assembly and quality traceability.

II. Characteristics and Structure of Fully Automatic Electric Screwdrivers

Fully automatic electric screwdrivers are highly automated electric screwdrivers suitable for scenarios with high tightening-precision requirements. Their structure is relatively complex, integrating precision components such as a torque sensor, an angle encoder, and a servo motor. These components can monitor torque and angle changes in real time during the tightening process and feed the data back to the controller. When the real-time torque reaches the preset value, the screwdriver stops working immediately, ensuring tightening accuracy.

Advantages

High precision: Through the torque sensor and angle encoder, torque and angle changes during the tightening process can be monitored in real time, ensuring tightening accuracy.

Data traceability: It can record detailed data during the tightening process, including torque, angle, and time, facilitating quality traceability and process optimization.

Low noise: Because the motor stops working immediately after the preset torque is reached, no additional noise is generated.

Intelligent: It supports interfacing with MES systems to achieve automated production management.

Disadvantages

Higher cost: Due to the integration of more precision components, the manufacturing and purchase costs of fully automatic electric screwdrivers are relatively high.

Complex operation: Operators need to possess certain technical knowledge for parameter setting and equipment maintenance.

III. Advantages of Danikor Fully Automatic Electric Screwdrivers

High-precision torque control: Danikor fully automatic electric screwdrivers incorporate high-precision torque sensors that can monitor torque changes during the tightening process in real time.

Angle monitoring and control: Through the angle encoder, Danikor fully automatic electric screwdrivers can accurately control the tightening angle, preventing assembly problems caused by insufficient or excessive angles.

Data collection and traceability: Danikor fully automatic electric screwdrivers can record detailed data during the tightening process and transmit it in real time to MES systems via Wi-Fi or wired networks, facilitating quality traceability and process optimization.

Intelligent operation: Parameter setting and operation are supported through a touchscreen or remote terminal. The interface is user-friendly and easy to learn.