Clamp applied to plane polishing of front blade surfaces of hard alloy blades

Abstract

The invention relates to a plane polishing clamp and discloses a clamp applied to plane polishing of front blade surfaces of hard alloy blades. The clamp comprises a fixing ring, a blade clamping disc and a magnet, wherein the magnet is fixed in the blade clamping disc; the blade clamping disc is mounted in the fixing ring; blade mounting holes matched with the shape of hard alloy blades are formed in the lower surface of the blade clamping disc; the depth of the blade mounting holes is smaller than the thickness of the hard alloy blades. Through the clamp, the magnet is used for adsorbing and fixing the hard alloy blades mounted in the blade mounting holes in the blade clamping disc; through attraction of the magnet, the clamp is capable of preventing the hard alloy blades from dropping out of the blade clamping disc in the carrying process or the plane polishing process; the hard alloy blades can be rapidly clamped and accurately positioned; the polishing accuracy, the polishing efficiency and the surface quality of the front blade surfaces of the hard alloy blades can be effectively improved, so that the service life of the blades can be prolonged; the part processing quality can be improved; the comprehensive production cost can be reduced.

Description

technical field [0001] The invention relates to a plane polishing jig, in particular to a plane polishing jig for the rake face of a cemented carbide blade. Background technique [0002] The tool is the "teeth" of the machine tool, and the main factor affecting the cutting performance and tool life of the tool. In addition to the tool material, tool geometric parameters, tool structure, cutting amount, etc., the surface finish of the tool is also a very important factor. Cemented carbide cutting tools use carbide (WC, TiC) micron-sized powders of high-hardness refractory metals as the hard phase, cobalt (Co) or nickel (Ni), and molybdenum (Mo) as the binder phase. Powder metallurgy products sintered in furnace or hydrogen reduction furnace. At present, the final machining process of the rake face of cemented carbide inserts mainly adopts diamond grinding wheel grinding, but the grinding process causes thermal deformation, grinding burns and surface / sub-surface damage (such ...

AI Technical Summary

Problems solved by technology

If the vacuum suction cup adsorption method is used to fix, not only the cost is high, but also the blade lacks positioning in the circumferential direction, and the surface area of ​​the carbide blade is small and difficult to be sucked tightly, causing the blade to fall off and affecting the polishing quality of the rake face of the blade

Moreover, when polishing multiple blades at the same time, the fixed position of multiple blades on the reference fixture plate is determined by the experience of the operator. This method is not accurate and greatly affects the polishing quality of the rake face of the cemented carbide blade. Consistency

Images