What are the parameters to consider when selecting a tightening machine in Dalian? How to match torque and speed

What are the parameters to consider when selecting a tightening machine in Dalian? How to match torque and speed

The Dalian tightening machine is the core equipment for industrial assembly bolt locking, and the reasonable selection directly determines the product assembly accuracy, production efficiency, and yield rate. Many companies only consider equipment specifications when selecting equipment, ignoring the matching of core parameters such as torque, speed, and stroke, which can easily lead to problems such as loose tightening, loose threads, and low efficiency. The selection of a tightening machine should focus on five core parameters: torque range, speed ratio, bolt specifications, accuracy level, and adaptability to working conditions.

Torque parameters are a core indicator for selection. The selection principle is that the rated torque of the equipment should cover the standard tightening torque of the workpiece. It is generally recommended to choose the standard torque within the range of 30% -80% of the equipment range. Insufficient torque can lead to insufficient locking force and loose bolts; Excessive torque can easily cause bolt tension, tooth slippage, and workpiece damage. For precision components and key bolts in automobiles, high-precision closed-loop torque models should be selected to ensure consistent locking. Conventional torque models can be used for general assembly, balancing cost and practicality.

Speed matching directly affects production efficiency and assembly quality. The tightening machine is divided into two speeds: high-speed pre tightening and low-speed final tightening. High speed is suitable for bolt running and quick fitting, shortening the working cycle; Low speed and low-speed are used for precise locking in the rear to avoid torque deviation caused by instantaneous impact force. Small size bolts are suitable for high speed and low torque parameters; Large specification and high-strength bolts require a reduction in rotational speed and an increase in torque to prevent bolt fracture and loss of torque control.

In addition to torque and speed, it is also necessary to match bolt specifications, shaft length stroke, and repeatability accuracy. The specifications of the equipment output shaft need to be adapted to the size of the bolt sleeve, and the stroke should meet the requirements of the workpiece assembly depth; High precision production lines require the selection of equipment with a repeatability of within ± 3% to ensure stability in mass production. At the same time, based on the production line requirements, confirm whether the equipment supports data storage, torque alarm, and segmented tightening functions.

In summary, the core selection of Dalian tightening machine is "sufficient torque without exceeding the standard, and reasonable division of speed". Reasonably matching parameters based on bolt size, process accuracy, and production pace can not only eliminate assembly defects, but also maximize production efficiency and avoid equipment performance waste and repeated investment.