Cam variable section roll bending machine and forming method

Abstract

The present invention provides a cam variable section roll forming machine and forming method, comprising at least one set of conjugate cam variable section roll forming units; when the conjugate cam variable section roll forming units are two or more groups, each The yoke cam variable section roll forming units are arranged end to end in sequence. Each set of conjugate cam variable section roll forming unit includes: an upper concave wheel, a lower cam, an upper driving shaft, a lower driving shaft, an upper concave wheel driving mechanism, a lower cam driving mechanism and a frame. The advantages are: (1) Products with different widths, heights, and cross-sections can be designed and produced according to different shapes of the cam, and the adaptability is stronger. (2) The present invention can effectively solve the problem of roll forming of parts with deep and narrow cross-sections and height-variable cross-sections; it also reduces the scale of servo-controlled axes and uses traditional mechanical mechanisms for forming, making the control system simple and easy line, thereby improving the reliability of the system operation and facilitating the maintenance of the system.

Description

technical field [0001] The invention belongs to the technical field of variable section roll forming in mechanical processing, and in particular relates to a cam variable section roll forming machine and a forming method. Background technique [0002] The variable cross-section roll forming technology proposed in recent years and the developed prototype can realize double-sided variable cross-section roll forming, but there are certain restrictions on the cross-sectional shape and width, and it is only suitable for forming variable-width variable-section parts, and in During the forming process, many inherent defects cannot be effectively eliminated, and the forming accuracy is difficult to be guaranteed. [0003] For variable-height variable-section parts, due to the limitation of the roll placement space, the characteristics of continuous roll forming and the dependence on the roll shape, it is impossible to form them. In addition, due to the different springback angles b...

AI Technical Summary

Problems solved by technology

[0002] The variable cross-section roll forming technology proposed in recent years and the developed prototype can realize double-sided variable cross-section roll forming, but there are certain restrictions on the cross-sectional shape and width, and it is only suitable for forming variable-width variable-section parts, and in During the forming process, many inherent defects cannot be effectively eliminated, and the forming accuracy is difficult to be guaranteed

[0003] For variable-height variable-section parts, due to the limitation of roll placement space, the characteristics of continuous roll forming and the dependence on roll shape, etc., it is impossible to form

In addition, due to the different springback angles between the variable cross-section area and the constant cross-section area, the control of the forming accuracy of the part becomes very complicated. At present, there is no effective technical way to solve it.

[0004] At present, the existing prototypes of variable cross-section roll forming production lines in the world involve multi-axis space-time coordinated control, the number of axes is large, and the control is complicated. In the actual production process, the system faces unstable operation, low reliability, and complicated maintenance. and many other issues

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