Hard high-torque cross-recessed punch assembly

Abstract

The invention discloses a hard high-torque cross-recessed punch assembly which comprises a punch (1) and a clamping body (2). The hard high-torque cross-recessed punch assembly is characterized in that the punch (1) is mounted in a slot body (3) inside the clamping body (2); the punch (1) is a crossed punch; the slot body (3) is a crossed slot matched with the punch (1); the punch (1) is embedded with the slot body (3) by virtue of copper brazing; the punch (1) is made of a tungsten-cobalt series hard alloy material; the clamping body (2) is made of medium-carbon structural steel; and a groove (4) is formed in each strip of the punch (1). The hard high-torque cross-recessed punch assembly is simple in structure, is convenient to process, is precise in dimension, is reliable and durable in use, and is suitable for promotion and use of high-torque cross-recessed forming and processing.

Description

technical field [0001] The invention belongs to the technical field of machining devices, and in particular relates to a hard high-torque cross-recessed punch assembly. Background technique [0002] Cross-groove products are very common in the machining process, and their molding quality mainly depends on the processing of cross-groove molds. In the prior art, the processing technology of the cross-recessed die is usually: cross-recessed female punch→press extrusion die→reverse extrusion cross-recessed die, wherein the cross-recessed female punch is the most important tooling for forming the cross-recessed die. Most of the high-torque cross groove products are made of titanium alloy and high temperature alloy. According to the processing requirements of titanium alloy and high temperature alloy products, the mold for forming the cross groove must have high strength, high hardness, high wear resistance and good red hardness. In the past, the cross groove The material often u...

AI Technical Summary

Problems solved by technology

Most of the high-torque cross groove products are made of titanium alloy and high temperature alloy. According to the processing requirements of titanium alloy and high temperature alloy products, the mold for forming the cross groove must have high strength, high hardness, high wear resistance and good red hardness. In the past, the cross groove The material often used in the female punch is high-speed steel, which is ground and formed by grinding and forming grinding wheels after heat treatment. Because the material of the cross-recessed male die is high-speed steel, the strength is high, and the deformation resistance of extrusion molding is large, and the cross-recessed punch is easy to wear and deform. fail

The high-torque cross-groove type is more special. The wings of the cross-groove groove are thin and narrow. It is processed by conventional forming grinding. The process is complicated, and it is difficult to ensure the relevant dimensions of the cross groove.

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