Combined rotating head for non-contact processing numerical control machine tool

Abstract

The invention provides a combined rotating head for a non-contact processing numerical control machine tool; a servo motor (2) which is arranged in the center of the inner cavity of a B rotating head shell body (1) and a harmonic reducing gear are coaxially assembled on a bearing seat (3); the bearing seat is fixedly connected with a B rotating head installation plate, and is fixed on a machine tool Z axis arm through the B rotating head installation plate; the output connection shaft of an A rotating head is provided with a W axis (12) which rotates with the axis of the A rotating head serving as the rotation center and a cutting head (13); the A and the B rotating heads are mutually vertical; the A rotating head is horizontally vertical to the B rotating head and is fixed on the output connection shaft of the B rotating head; and the B rotating head is connected with an output shaft (8) and the output connection shaft (11) which is fixedly connected with the output shaft with the harmonic reducing gear through the servo motor (2) so as to drive the overall A rotating head to rotate with the rotation center of the rotating axis of the B rotating head and automatically adjust the joint action of an X coordinate, a Y coordinate and a Z coordinate through a numerical control system of the machine tool, so that the axis of a cutter always coincides with the normal line of a processed point. The combined rotating head for the non-contact processing numerical control machine tool is characterized by small size, high precision, low manufacturing cost and the like.

Description

technical field [0001] The invention relates to a rotary head mainly used for non-contact numerical control processing machine tools such as water cutting, laser cutting and electric spark. Especially the CNC rotary head installed on the water jet cutting head of the water cutting machine. Background technique [0002] Due to the non-contact processing of water cutting, laser cutting, EDM, etc., the machine tool has the characteristics of very smooth processing surface, accurate and reliable dimensional accuracy, neat trimming, no cutting force, and the machine tool is almost free from external force during processing. And is widely used. In particular, water cutting machine tools that use high-speed sanding water jets for cutting processing have no thermal effect, no thermal deformation, no slag, and no secondary processing. In terms of cutting cost, the waterjet processing industry is considered to be the most versatile and fastest-growing industry. In addition to the ab...

AI Technical Summary

Problems solved by technology

Therefore, ordinary three-coordinate machine tools cannot meet the above requirements. Usually, it is necessary to use machine tools with five coordinates or more and A, B / C rotary heads to realize the above functions.

At present, the A and B / C rotary heads produced by domestic and foreign machine tool manufacturers in the market are very large in size and high in cost, and are more suitable for metal cutting machine tools. It looks very cumbersome, it feels like killing a chicken with a sledgehammer, and it is also very uneconomical

The cost of foreign five-coordinate waterjet cutting machine tools is about 30 million RMB per set, which is very expensive

For non-contact processing machine tools such as water cutting machines, it is more suitable to use light-duty A, B / C rotary heads, but there is no such product on the market

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