Forming tooling and processing method for thick steel plate spiral sheet with precise positioning holes

Abstract

The invention discloses a thick steel plate helical piece forming processing tool with precise positioning holes and a processing method. The tooling includes a base on which a number of positioning steel plates are welded and fixed upright. The positioning steel plates are radially arranged, and the outer edges of the positioning steel plates are located at On the circumference, the diameter of the circumference is equal to the inner diameter of the processed spiral steel plate; any one of the positioning steel plates is welded and connected with an upper support plate and a lower support plate, and a reinforcing plate is welded between the upper support plate and the lower support plate. When processing the spiral piece, it is calculated first, and then the corresponding fan-shaped workpiece is cut out on the steel plate according to the calculation result, and then the workpiece is placed outside the circumference of the positioning steel plate, one end is fixed, the other end is pulled up, and supported by a multi-point jack. At the same time, it is heated along the helical radiation to locally deform it into a helical shape. The tooling has a simple structure and is easy to implement, and is suitable for processing various thick steel structure spiral pieces.

Description

technical field [0001] The invention relates to a processing device and a processing method for a spiral sheet workpiece, in particular to a processing device and a method for a spiral sheet workpiece with positioning mounting holes. Background technique [0002] In the prior art, when producing workpieces with helical pieces such as spiral ribbons and augers, the thin plate workpiece is generally cut into a fan shape, and then welded on the surface of the rotating shaft. During welding, the thin plate needs to be continuously bent, because The thin plate is easy to bend and can be welded while bending. It is not necessary to pre-bend the thin plate into a spiral shape. The shape after bending is not easy to maintain, and it still needs to be adjusted continuously during welding. [0003] In the Chinese patent database, there is a processing method and special equipment for spiral blades, its application number: 200610161457.6, application date: 2006-12-19, publication numb...

AI Technical Summary

Problems solved by technology

[0004] The deficiencies of the prior art are: when manufacturing workpieces with larger thickness spiral pieces, there are relatively large technical obstacles, the main reason being that the strength of the spiral pieces themselves is high and not easily deformed; , after the spiral sheet is formed, it is often difficult to process accurately, and the pre-processed hole is easily deformed after being bent into a spiral

Images