Single-point incremental forming tool head axial vibration device

Abstract

The invention discloses a single-point incremental forming tool head axial vibration device. The device comprises a supporting frame and a tool head with a push rod. A spring and two guide posts are connected to the inner bottom of the supporting frame. The spring is located in the center. The two guide posts are located on the left side and the right side of the spring correspondingly. The tool head with the push rod is composed of a tool head body arranged horizontally and the protruding push rod perpendicularly and fixedly connected to the tool head body. The upper end of the spring and the upper ends of the two guide posts are all connected with the tool head body. The upper portion of the protruding push rod is connected with a sleeve. A gap is reserved between the tool head body and the bottom surface of the sleeve. The upper portion of the sleeve is clamped to one end of a tool holder of a machine tool. The other end of the tool holder of the machine tool is connected with a rocker arm of the machine tool. According to the single-point incremental forming tool head axial vibration device, the tool head with the push rod is driven through rotation of a machine tool spindle to generate axial vibration, so that original continuous extrusion friction motion is converted into high-frequency point pressure motion, deformation processing is facilitated, and forming force required in the forming process is reduced.

Description

technical field [0001] The invention belongs to the technical field of plastic forming equipment for sheet metal, and in particular relates to an axial vibration device for a single-point incremental forming tool head. Background technique [0002] In the field of sheet metal manufacturing, in order to meet the needs of small batches, multiple varieties and sample trial production, and realize rapid, low-cost and flexible forming of sheet metal, scholars have proposed CNC single-point incremental forming technology. The single-point incremental forming technology introduces the idea of ​​"layered manufacturing". The entire sheet forming process does not require corresponding molds, which is more flexible than traditional stamping. However, in the forming process, the forming of the part mainly depends on the frictional sliding and shearing of the forming tool head on the sheet metal, which has the disadvantages of large forming force, poor surface quality of the part and poo...

AI Technical Summary

Problems solved by technology

However, in the forming process, the forming of the part mainly depends on the frictional sliding and shearing of the forming tool head on the sheet metal, which has the disadvantages of large forming force, poor surface quality of the part and poor forming limit, and cracks, cracks, etc. Defects of wrinkle, metal accumulation, depression, indentation and springback seriously affect the quality of formed parts

In addition, during the forming process, the forming tool not only pulls the local sheet in the direction perpendicular to the forming track, but also pushes the sheet along the direction of the forming track to produce deformation. reflected in the form, affecting the forming quality of parts

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