עיבוד CNC 4 צירים מוסיף ציר סיבובי (בדרך כלל ציר A, מסתובב סביב ציר ה-X, או ציר B, rotating about the Y-axis) to traditional 3-axis (X, י, and Z linear) עיבוד שבבי. By linking the rotary and linear axes, it enables efficient machining of complex workpiece surfaces, inclined holes, and multi-angle contours. לְהַלָן, we explain:
High Programming Complexity
The linkage paths of the rotary and linear axes must be considered to avoid tool interference (לְמָשָׁל, 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) והחזרה (≤±3″) of the rotary axis directly impact machining quality and require regular calibration (לְמָשָׁל, using a laser interferometer). יֶתֶר עַל כֵּן, 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) ומהירות ציר (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 (לְמָשָׁל, at 1000 סל"ד, the clamping force should be greater than the centrifugal force of the workpiece, often designed with a ≥1.5× safety factor).
על RapidEfficient
RapidEfficient מתמחה בעיבוד CNC דיוק גבוה עם 18 שנים של ניסיון. מוצריה מכסים רפואיים, תקשורת, אוֹפְּטִיקָה, מל"טים, רובוטים חכמים, רכב, וחלקי אוטומציה משרדית.
מרכזי עיבוד CNC של החברה כוללים ארבעה צירים, חמישה צירים, ומכונות הצמדה, ומצוידים במקרנים מדויקים, מכונות מדידה של שלוש קואורדינטות, ספקטרומטרים, וציוד בדיקה מדויק אחר.
דיוק בעיבוד שבבי: עד 0.01 מ"מ
בדיקת דיוק: עד 0.001 מ"מ
