Generally, lightweight automatic spinning machines (including standard and high-force spinning machines) share similar structural advantages to those of standard lathes. However, to meet the requirements of the aforementioned spinning process, especially for large spinning machines and large high-force automatic spinning machines, they typically possess the following 11 core advantages and features.
The bed, main shaft, transmission system, mandrel frame, tailstock, and other components of the fully automatic spinning machine should possess sufficient rigidity and also feature a relatively heavy-duty worktable, larger guide rails, thick-walled support brackets, and a housing, etc.
2. The lateral and longitudinal feed mechanisms of the rotary table are predominantly driven by hydraulic transmission or a combination of mechanical and hydraulic power, enabling it to generate sufficient rotational force and achieve variable speed adjustment without a step, meeting the process requirements.
3. Standard fully automatic swaging machines typically use a single swage roller, but the auxiliary forming rolls (flanging rolls, rolling edges, etc.) are usually multiple. High-force automatic swaging machines often employ 2 to 3 swage rollers or roller frames (common models typically use 2 cylindrical pieces, with most having 2 to 3). These are arranged symmetrically relative to the main shaft axis to balance the radial forces during swaging, reducing bending deflection, tilt, and vibration of the main shaft and mandrel. This provides a prerequisite for improving the precision of the swaged parts. Consequently, it requires the swage rollers to have high lateral (e.g., for cylindrical piece swaging machines) or vertical (e.g., for general-purpose automatic swaging machines) synchronous feed accuracy. However, for lightweight high-force automatic swaging machines, a single swage roller is typically used.
4. The main shaft features ample transmission torque and power. It meets the requirements for either constant torque or constant power adjustment according to specific process needs. Furthermore, it allows for variable speed adjustment of the main shaft rotation and the roller's longitudinal feed rate, which on one hand can accommodate any arbitrary selection of material requirements for the spinning process; on the other hand, it enables the possibility of maintaining a constant rotational linear speed of the mandrel surface and a consistent feed rate per revolution during the spinning process.
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