Automatic detection device for surface defects of polycrystalline diamond composite sheet

Abstract

The invention discloses an automatic detection device for surface defects of a polycrystalline diamond composite sheet. The automatic detection device comprises a detection platform, a transferring device for transferring PDC, an adsorption displacement device for transferring the PDC and a visual detection device for detecting the surface of the PDC, wherein the detection platform is divided intoa rotary detection area and an upper end surface detection area, the transferring device, the adsorption displacement device and the visual detection device are arranged on the detection platform, the adsorption displacement device is located between the rotary detection area and the upper end surface detection area. By the adoption of the structure, the rotary detection region and the upper endsurface detection area are provided with a side surface detection device and an upper end surface detection device respectively, the side surface and the upper end surface of the PDC are sequentiallydetected, the PDC is transferred from the rotary detection area to the upper end surface detection area through the transmission device and the adsorption displacement device, the side face and the upper end face of the PDC can be automatically detected at one time, the structure is simple, and the accuracy is high.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to an automatic detection device for surface defects of a polycrystalline diamond composite sheet. Background technique [0002] Polycrystalline diamond compact (referred to as PDC), belongs to emerging functional materials, such as figure 1 As shown, it includes a polycrystalline diamond layer 10a (PDC layer) and a cemented carbide layer 11a, and the PDC layer is above the cemented carbide layer 11a. PDC has both high hardness, high wear resistance and excellent thermal conductivity of diamond, and With the strength and impact toughness of cemented carbide, it is an ideal material for making cutting tools, drilling bits and other wear-resistant tools. [0003] However, during the production and processing of PDC, the surface is prone to pits, pinholes, cracks and chipping of the PCD layer chamfer, white edges on the side of the PCD layer, white spots at the junction of the PCD l...

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Problems solved by technology

[0003] However, during the production and processing of PDC, the surface is prone to pits, pinholes, cracks and chipping of the PCD layer chamfer, white edges on the side of the PCD layer, white spots at the junction of the PCD layer and cemented carbide, hard Defects such as scratches and / or corrosion spots on the side of the alloy, these defects will affect the quality of the product

At present, the detection of the surface curve of the PDC layer is mostly carried out manually. The inspector uses the naked eye or with the help of a stereo microscope to detect all the defects on the side of the product and the upper and lower surfaces. The probability of false detection and missed detection increases

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