A digitally controlled wire laying device

Abstract

A numerical control fiber placement device comprises a placement mechanism, prepreg strips, a die located below the placement mechanism and a rotary shaft used for mounting the die. In the placement mechanism, a bracket is of an L-shaped structure; a stepping motor is mounted on the upper portion of the long end of the bracket, and the lower portion of the short end of the bracket is provided with a rotary shaft P; one end of a rocker arm is connected with the rotary shaft P, the other end of the rocker arm is connected with one end of the a rotary shaft Q, and the other end of the rotary shaft Q is connected with a fork-shaped support; the fork-shaped support is internally provided with a roller which is filled with a magnet; one end of a telescopic slide rod is fixed to the long end of the bracket, and the other end of the telescopic slide rod is mounted on the rocker arm; and the telescopic slide rod is sleeved with a sleeve. The prepreg strips are arranged at the bottom of the rocker arm and extend to the die below the roller after penetrating through the long end of the bracket to stretch into the rocker arm; attractive force is generated between the magnet and the die to provide rolling force for fiber placement, and meanwhile, the attractive force automatically adjusts the rotary angle of the rotary shaft Q to achieve perfect press fit between the roller and the die surface; and the well pasted carbon fiber strips are rolled and tightly adhered. The difficulty of an automatic fiber placement (AFP) system is effectively lowered.

Description

technical field [0001] The invention relates to the technical field of numerical control manufacturing, in particular to a numerical control silk laying device. Background technique [0002] With the rapid development of science and technology, the numerical control manufacturing technology of carbon fiber composite materials has occupied a pivotal position in the field of aviation and aerospace. It has excellent performance and is the most widely used; the general steps of the autoclave forming manufacturing process are: raw material preparation → carbon fiber prepreg paving molding → high temperature curing in autoclave → post-processing of parts (cutting, repairing, etc.), the second step of which is carbon fiber Prepreg laying and laying is often the most critical process. Prepregs need to be laid on the mold layer by layer according to the predetermined direction and texture requirements. Traditional laying and laying are mostly manual operations; With the increase in ...

AI Technical Summary

Problems solved by technology

[0003] The device used for complex curved surface CNC laying and forming is called automatic fiber placement system (automatic fiber placement), referred to as AFP system. The automatic fiber placement system belongs to the international cutting-edge manufacturing technology. The principle and structure are very complicated, and the development is very difficult

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