Gantry propeller integral blade abrasive belt grinding machine

Abstract

The invention discloses a gantry propeller integral blade abrasive belt grinding machine, which comprises a machine body, a grinding head mechanism, a grinding head feed mechanism and a workpiece azimuth adjusting mechanism. The grinding head feed mechanism comprises an axial feed mechanism, a radial feed mechanism with respect to a work piece, and a grinding head deflection driving mechanism. The whole grinding machine has high stability and ensures the grinding precision. By reasonably distributing grinding head feed and adjusting the work piece azimuth and through the combination of four spatial degrees of freedom by a relatively short transmission chain, the grinding head mechanism has high and low degrees of freedom of pitch in a relatively small range, the integral blade can be directly ground, and the blades on the integral blade and other parts are all completely machined. The grinding head mechanism and a work piece clamping mechanism have good rigidity, the working efficiency is improved, and synchronously, the machining precision and the surface quality can be ensured. The grinding thickness in the process of polishing a curved surface is uniform, the quality of a molded surface is ensured, the labor intensity of workers is decreased, and the management cost and the production cost are reduced.

Description

technical field [0001] The invention relates to an abrasive belt grinder, in particular to a gantry type propeller integral blade abrasive belt grinder. Background technique [0002] A belt grinder is a grinding machine that uses a fast-moving abrasive belt as an abrasive tool for grinding and polishing. With the rapid development of grinding machine technology, abrasive belt grinding machines have developed into high-efficiency and low-power finishing equipment. Especially in the processing of large-size plates, bars and complex profiles, its advantages are particularly obvious. The abrasive belt grinder is driven by the drive wheel to move the abrasive belt, and the tension wheel is used to tension the abrasive belt. The back pressure is provided by the contact wheel or the support plate to generate contact pressure on the workpiece and form a cutting angle to complete the grinding process of the workpiece. [0003] Due to the limitations of the grinding machine structur...

AI Technical Summary

Problems solved by technology

Although manual grinding can realize the grinding and polishing of complex curved surfaces, due to the subjective influence of people, the quality of the curved surface surface is determined by the proficiency of the operator, so it is impossible to effectively control the dimensional accuracy of the workpiece, resulting in poor processing accuracy, The quality of the surface is difficult to guarantee, even in the surface polishing, the grinding thickness is uneven, the product consistency is difficult to guarantee, and the labor intensity of the workers is high, and the working environment of the production personnel is harsh

In order to solve the above problems, a single-blade grinding machine has appeared, which greatly improves the grinding efficiency of the blade, but the existing equipment cannot meet the requirements of large-feed grinding of the blade surface and the rigidity of the equipment is very poor. Adapt to the functional requirements of fast grinding of large blades, and grind single blades; although the efficiency is improved compared with manual grinding, grinding the blades of an impeller requires repeated workpiece installation, and the work efficiency is low. The management cost is high; and, for the integral blades used in some large-scale machines, the blade and the integral blade body are integrated by casting or welding. For this integral blade, the grinding machine of the prior art cannot process it, and it can only be ground manually. Machining increases labor intensity, low work efficiency, increases the production cost of the overall blade, and cannot guarantee the machining accuracy and surface quality of the overall blade

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