Three-dimensional multi-degree-of-freedom progressive pipe bending mechanism

Abstract

The invention discloses a three-dimensional multi-degree-of-freedom progressive pipe bending mechanism, which belongs to the field of pipe bending mechanisms. The pipe bending mechanism includes a bed, a head support, a turntable, a slider, a universal ball and a control box, wherein a clamping and conveying device is arranged on the bed; the head support includes an upper support and a lower support installed oppositely. A bracket, a circular through hole is arranged between the upper bracket and the lower bracket; the rear part of the turntable is rotatably installed in the circular through hole, and the front part of the turntable is provided with a slide groove; the slide The block includes a base and a base cover, the base can be slidably installed in the chute, and a spherical hole is opened on the base and the base cover; the universal ball is installed in the spherical hole, and the control box passes through The cross-shaft universal joint drives and connects the universal ball. The invention has low price and can bend pipes with multiple degrees of freedom in space, thereby largely avoiding defects in the manufacture of pipes and improving the degree of freedom and efficiency of pipe manufacture.

Description

technical field [0001] The invention relates to the field of pipe bending mechanisms, in particular to a three-dimensional multi-degree-of-freedom progressive pipe bending mechanism. Background technique [0002] At present, the domestic production of pipe bends generally adopts the traditional method, that is, according to the two-dimensional pattern, it is carried out by hot bending with sand filling, manual cold bending with sand filling, ordinary machine bending, and steel pipe filling hydraulic bending. Traditional pipe bends rely entirely on the operator's experience and technical proficiency to control product quality. Therefore, the difference in tube shape is large, the amount of correction is large, and it is especially difficult to guarantee the bending quality of large-diameter catheters. Problems such as out-of-tolerance roundness, wrinkling at the inner radius, and unclean removal of fillers in the lumen often occur. There are many traditional pipe bending pro...

Images