Complete Guide to Automatic Screw Locking Machines: Working Principles, Key Points for Selection, and Usage Tips

I. What is an automatic screw locking machine?

As an industry popularization by Shenzhen Hongred Technology Co., Ltd., the automatic screw locking machine is an intelligent assembly equipment that integrates automatic screw feeding, automatic transportation, and automatic locking. It achieves high-speed, precise, and stable locking of screws through pneumatic or electric drive methods, combined with a precise torque control system. It is widely used in manufacturing industries such as electronics, automobiles, home appliances, and medical devices.

II. The working principle of the automatic screw locking machine

The core working process of the automatic screw locking machine consists of the following steps:

The first step is to supply the screws: The vibratory bowl sorts and arranges bulk screws, and transports the screws one by one to the fastening position through blowing or magnetic suction.

Step 2, Identification and Positioning: The visual system or mechanical positioning device confirms the locking coordinates, ensuring that each screw accurately falls into the screw hole.

Step 3: Lock and execute: The electric screwdriver rotates to tighten screws according to the preset torque value, with the torque sensor monitoring in real time, and automatically stops when the set value is reached.

Step 4, Feedback Detection: The system automatically determines whether the lock payment is qualified, and issues alarms and records for abnormalities such as missed locks, stripped threads, and floating locks.

III. The main types of automatic screw locking machines

Handheld automatic screw locking machine: Flexible operation, suitable for small-batch, multi-variety production, with low investment cost.

Coordinate-type automatic screw locking machine: Achieve multi-point automatic locking through three-axis movement, suitable for medium to large batch production.

Multi-axis synchronous screw locking machine: Multiple locking heads work simultaneously, with very high efficiency, suitable for large-scale standardized products.

Robot screwing system: Combined with a six-axis robot, it adapts to complex workpieces and multi-angle fastening requirements.

IV. The key points for choosing an automatic screw locking machine

<Screw specification compatibility:Confirm the range of screw diameters supported by the equipment and select the model that matches the screw specifications of the product.

Locking accuracy and torque range:Based on the assembly requirements of the product, select the appropriate torque range and accuracy grade.For precision electronic products, it is recommended to choose equipment with a torque accuracy within 3%.

Locking speed:Based on the production line's cycle time requirements, select the appropriate locking speed.For general coordinate-type equipment, it can lock 3,000 to 8,000 screws per hour.

Programming and Compatibility:Prioritize devices with a user-friendly interface that support fast switching between multiple products to reduce changeover time.

After-sales service guarantee:Choose brands with a complete after-sales system to ensure long-term stable operation of the equipment.

V. Usage and Maintenance Techniques

Regularly clean the vibratory bowl and feeding channel to prevent screws from getting stuck;periodically calibrate the torque sensor to ensure fastening accuracy;replace worn bits in a timely manner to avoid stripping;keep the working environment of the equipment clean and dry to extend the equipment's service life.

Shenzhen Hongred Technology Co., Ltd.focuses on the research and manufacturing of automated assembly equipment, providing professional automatic screw machine selection consulting and technical support services.Welcome to contact us for more industry solutions.

Source: Hongruida Technology Encyclopedia | Published on: April 2, 2026