Magnetic clamp device and magnetic force generating mechanism for magnetic clamp device

摘要

PROBLEM TO BE SOLVED: To provide a magnetic clamping device provided with a ring-shaped body which is hard to reduce magnetic flux and has water tightness. SOLUTION: A circular lid (6) made of a soft magnetic material is disposed at the center of the housing cavity (4), and an annular body (23) made of a nonmagnetic material is formed on the outer periphery thereof. A plurality of arc-shaped non-reversible permanent magnets (7) are annularly disposed in an annular magnet storage space on the back surface of the annular body (23), and a circular lid On the back surface of (6), a reversible permanent magnet (8) and a magnetic pole switching coil (9) around it are provided, and the bottom cover (12) for closing the back surface opening of the accommodation cavity (4) A magnetic clamp device (1) provided with a magnetic force generation mechanism (3) fastened with a bolt (13) with a lid. [Selected figure] Figure 1