How should the sample fixtures of a multimetallic polishing machine be designed?

The sample fixture design of the multi-metallographic polishing machine needs to balance versatility, stability, and ease of use:
Clamping methods:
Magnetic fixtures: Suitable for ferromagnetic materials, fixing samples through strong magnets, with a clamping force of up to 10-50N, requiring only sliding to remove when changing samples; Vacuum suction cups: Suitable for non-magnetic materials, with adjustable suction cup diameters of 20-100mm, clamping force can reach 20-100N when the vacuum degree is ≥-80kPa, requiring a vacuum generator; Mechanical claws: Suitable for irregular-shaped samples, the claws are made of spring steel and the clamping force (range 5-30N) is adjusted through threads, with the surface covered by rubber pads to prevent scratching the samples; Multi-station coordination: Each station fixture must be individually adjustable, for example, station 1 uses a magnetic fixture to fix a 10mm×10mm square sample, station 2 uses a vacuum suction cup to fix a φ30mm circular sample, and station 3 uses mechanical claws to fix an L-shaped sample; Angle adjustment: Some high-end models support fine angle adjustment of the fixtures, achieved through a worm gear mechanism, suitable for polishing non-planar samples; Quick change: The interface between the fixture and the polishing disc shaft uses a quick-change design, with a change time of ≤1 minute.

The multi-metallographic polishing machines from Kunshan Fuze Testing Equipment Co., Ltd. provide more than 10 types of standard fixtures and support customized non-standard fixtures to meet the polishing needs of special samples.