Clamping and positioning device for cutting metallographic sample and clamping and positioning method thereof

Abstract

The invention relates to the technical field of metallographic cutting, in particular to a clamping and positioning device for cutting a metallographic sample and a clamping and positioning method thereof. The clamping and positioning device comprises a support mechanism and a clamp mechanism, wherein the support mechanism comprises a support base, a support, a sliding sleeve, a sliding sleeve adjusting and locking assembly, a sliding block and a locking base, and the clamp mechanism comprises a supporting block, an upper clamping block, a lower clamping block, a jacking screw, two supportingguide rods and a plurality of pressing screws. When a metallographic cutting machine is used for cutting the special-shaped sample, the clamping and positioning device can effectively clamp and fix the special-shaped sample, the sample is firmly locked, thus loosening or falling in the cutting process is avoided, the sample cutting is precise without damaging equipment, the relative positions of the sample and the cutting knife can be conveniently and flexibly adjusted, and precise positioning is realized, so that the required sample part can be cut, the cutting requirement is met without frequently replacing a clamp, the labor intensity is reduced, the cutting efficiency is improved, and the equipment is effectively maintained.

Description

technical field [0001] The invention relates to the technical field of metallographic cutting, in particular to a clamping and positioning device for cutting metallographic samples and a clamping and positioning method thereof. Background technique [0002] In the metallographic analysis of metal materials, the sample needs to go through a series of pretreatment steps such as cutting, inlaying, grinding, polishing, and etching. Selecting a suitable cutting site and cutting out a sample of a suitable size is a very important part of the pretreatment. At present, most metallographic cutting machines are equipped with a T-slot table as standard. When cutting the sample, the sample needs to be clamped on the clamping device and then locked and fixed on the T-slot table of the cutting machine. The fixture can only move in one direction along the T-shaped slot on the workbench, and cannot flexibly adjust its position in the horizontal and vertical ranges. Therefore, the adjustmen...

AI Technical Summary

Problems solved by technology

The fixture can only move in one direction along the T-shaped slot on the workbench, and cannot flexibly adjust its position in the horizontal and vertical ranges. Therefore, the adjustment of the relative position between the sample and the cutting knife is limited, and it is impossible to precisely position and cut the sample. Cut from the desired sample part, when the sample area is too small, the equipment may not be able to cut the sample

At present, the clamping device provided by the metallographic cutting machine is mainly suitable for the clamping of regular-shaped samples, while the clamping of irregular-shaped samples is more complicated and inefficient, and often the clamping is not tight or even impossible to clamp, making Special-shaped samples cannot be clamped and cut

If the sample is not clamped tightly, it is easy to slide and fall off during cutting, so that the sample cannot be cut accurately, and the cutting equipment may be damaged

Images