Automatic thread threading machine for fiber reinforced composite circular tube and circular bar

Abstract

The invention provides an automatic thread threading machine for a fiber reinforced composite circular tube and circular bar. The automatic thread threading machine is characterized by comprising a thread grinding wheel driven by a motor I, a cross-shaped supporting plate is arranged on the front side of the thread grinding wheel, a working platform is arranged on the cross-shaped supporting plate, feeding thread sleeves are arranged on the working platform and driven by a motor II on the working platform, and the feeding thread sleeves on the working platform are driven to move through the movement of the cross-shaped supporting plate, so that the circular tube and circular bar and the thread grinding wheel are matched to work. The automatic thread threading machine for the fiber reinforced composite circular tube and circular bar has the following advantages that the proper grinding wheel is selected according to the size of thread and is rotated by the motor; in order to form an accurate thread pitch through threading, according to the automatic thread threading machine, the feeding thread sleeves with the same thread pitch are selected to drive a workpiece to be fed to the working position of the thread grinding wheel, and then thread manufacturing with set threading parameters is achieved; and according to the automatic thread threading machine for the fiber reinforced composite circular tube and circular bar, the feeding and discharging working positions, the threading and thread grinding height and the thread length are set in a limited mode.

Description

technical field [0001] The invention belongs to the field of machinery, and in particular relates to an automatic thread threading machine for round tubes and rods made of fiber reinforced composite materials. Background technique [0002] In the prior art, the internal structure of fiber-reinforced composite materials is based on lamination of sheet-like fibers perpendicular to the normal direction of the product, or a layered structure formed by stacking and curing resin. This structure makes there are no continuous fibers in the normal direction of the product. However, the strength of fiber reinforced composites is mainly contributed by relatively continuous fibers. The continuity of the layered structure is destroyed, which in turn reduces the thread strength, causing the threads to be easily delaminated and stripped, resulting in threading failure. [0003] To put it simply: the threading tool damages the fiber layer during the threading process, which affects the qua...

AI Technical Summary

Problems solved by technology

This structure makes there are no continuous fibers in the normal direction of the product. However, the strength of fiber reinforced composites is mainly contributed by relatively continuous fibers. The continuity of the layered structure is destroyed, thereby reducing the thread strength, causing the thread to be easily delaminated and stripped, resulting in threading failure

[0003] To put it simply: the threading tool damages the fiber layer during the threading process, which affects the quality of the product and reduces the success rate of threading

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