A follower grinder is a CNC grinder specifically designed for grinding irregularly shaped parts such as crankshafts and camshafts. Its core feature is its ability to grind multiple journals in a single setup, offering high precision and efficiency. It controls the linkage between the grinding wheel and the workpiece through a CNC system, making it particularly suitable for industries with high precision requirements, such as automotive engines and aerospace.
Linked Grinding Principle: The core technology is C-X axis linkage. While the workpiece rotates (C-axis), the grinding wheel head moves synchronously (X-axis) according to the workpiece’s eccentric position, achieving “follow-up” grinding.
This linkage method ensures the grinding wheel is always aligned with the journal to be ground, eliminating the need for repeated workpiece disassembly and reassembly.
Key Structural Components:
Grinding Wheel Head: Typically uses a dynamic-static piezoelectric spindle, offering high and stable speeds; some high-end models can reach linear speeds of up to 120 m/s.
Headstock and Tailstock: The headstock spindle is directly connected to a servo motor, supporting stepless speed regulation; the tailstock can be hydraulically clamped to ensure workpiece rigidity.
CNC System: Equipped with dedicated follow-up grinding software, supporting graphical programming, simple operation, and automatic error compensation.
Main Application Industries:
Automotive Manufacturing: Used for precision grinding of engine crankshafts and camshafts; a core production equipment.
High-End Equipment: Widely used in the processing of irregularly shaped components such as core parts for aerospace, medical, hydraulic, and robotic reducers.
Core Advantages:
High Precision: Single clamping avoids multiple positioning errors; roundness accuracy can reach 0.002mm or even higher.
High Efficiency: Equipped with rapid feed and retraction functions; some models can improve grinding efficiency by 300%.
High Flexibility: Adaptable to different workpiece models by adjusting the CNC program; suitable for single-piece to mass production.
