El mecanizado de 4 ejes CNC agrega un eje rotativo (Por lo general, el eje A, girando alrededor del eje x, o el eje b, rotating about the Y-axis) to traditional 3-axis (incógnita, Y, and Z linear) mecanizado. By linking the rotary and linear axes, it enables efficient machining of complex workpiece surfaces, inclined holes, and multi-angle contours. Abajo, we explain:
High Programming Complexity
The linkage paths of the rotary and linear axes must be considered to avoid tool interference (P.EJ., collisions between the tool and the workpiece or fixture during rotation). CAM software (such as UG or Mastercam) is typically used to automatically generate toolpaths and perform simulation verification.
Strict Precision Requirements for Rotary Axis
The positioning accuracy (generally around ≤±10″ for most machines, and up to ≤±5″ for high-end equipment) y repetibilidad (≤±3″) of the rotary axis directly impact machining quality and require regular calibration (P.EJ., using a laser interferometer). Además, the concentricity error between the rotary axis and the worktable should typically be controlled within 0.01 mm to avoid radial dimensional deviations of the workpiece.
Matching Tools and Cutting Parameters
When machining inclined or curved surfaces, the cutting angle constantly changes. It is important to select tools suitable for multi-angle cutting (such as ball-end milling cutters and bullnose milling cutters). Dynamically adjust the feed rate (F value) and spindle speed (S value) to avoid overcutting and poor surface quality.
Fixture Design Must Adapt to Rotation
The fixture must be lightweight and not interfere with the movement of the rotating axis, while ensuring rigid clamping of the workpiece (especially at high rotation speeds, where centrifugal force can cause the workpiece to loosen). Hydraulic chucks, indexing heads, or custom fixtures are typically used. The clamping force should be calculated based on the workpiece weight and rotational speed (P.EJ., at 1000 rpm, the clamping force should be greater than the centrifugal force of the workpiece, often designed with a ≥1.5× safety factor).
Acerca de RapidEfficient
RapidEfficient se especializa en mecanizado CNC de alta precisión con 18 años de experiencia. Sus productos cubren servicios médicos., comunicaciones, óptica, drones, robots inteligentes, automotor, y piezas de ofimática.
Los centros de mecanizado CNC de la empresa incluyen cuatro ejes., cinco ejes, y máquinas herramienta de enlace, y están equipados con proyectores de precisión, máquinas de medición de tres coordenadas, espectrómetros, y otros equipos de prueba de precisión.
Precisión de mecanizado: arriba a 0.01 mm
Precisión de las pruebas: arriba a 0.001 mm
