A machining tool and machining method for a large curved surface long beam structure

Abstract

The invention discloses a machining tool and a machining method for a long beam structure with a large curved surface, which includes a connecting column, a universal joint, a triangular knife, a fixing plate, and a limit frame. On the claw chuck, the other end of the connecting column is connected to the universal joint, and the universal joint is connected to the triangular knife. The rear end of the triangular knife is located in the limit space inside the limit frame. On the machine tool, the limit space of the limit frame is a square with rounded corners, and the side length of the limit space corresponds to the side length of a triangular knife whose cross section is a Leroy triangle, which can simply deliver the power of the spindle. The tool running track has very good adaptability. The triangular tool has a large tool body and stronger structural strength, which is more suitable for deep hole processing. It can realize continuous processing on continuous curved surfaces without repeated positioning, and the clamping error is reduced. The requirements on the machine tool are greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a processing tool and a processing method for a large curved surface long beam structural part. Background technique [0002] In the process of machining, what is often encountered is the processing of curved surfaces composed of multiple continuous curved surfaces inside large workpieces. In addition, the parts are thin-walled parts and the processing depth is relatively deep, which forms the inner wall of thin-walled parts. The processing of continuous curved surface is difficult, its shape is complex, the datums are interrelated, there are many shape and position tolerances, and the drawing accuracy is high, the difficulty of clamping during processing is relatively high, and for special-shaped holes, grooves and other shapes There is a problem of high processing difficulty; due to the large processing depth, it is necessary to customize a special spe...

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Problems solved by technology

[0002] In the process of machining, what is often encountered is the processing of curved surfaces composed of multiple continuous curved surfaces inside large workpieces. In addition, the parts are thin-walled parts and the processing depth is relatively deep, which forms the inner wall of thin-walled parts. The processing of continuous curved surface is difficult, its shape is complex, the datums are interrelated, there are many shape and position tolerances, and the drawing accuracy is high, the difficulty of clamping during processing is relatively high, and for special-shaped holes, grooves and other shapes There is a problem of high processing difficulty; due to the large processing depth, it is necessary to customize a special special transfer power tool holder, which is difficult to locate. The requirements for the machine tool are high, and it is necessary to use a five-axis machine tool and use divided curved surfaces for multiple processing. , in the process of multiple processing, there are multiple positioning of the workpiece, the positioning takes a long time, and it is easy to produce clamping errors, resulting in an increase in scrapped parts and a corresponding increase in the production cost of the enterprise, and in the production process, multiple positioning consumes The long time and low processing efficiency of divisions also limit the production capacity of enterprises

Processing requires a five-axis machine tool. The cost of equipment procurement and operation is high, which also increases the cost of the enterprise, and the profit of the enterprise decreases rapidly.

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