Single-driving double-point multi-connecting rod cold extruding mechanism

Abstract

The invention discloses a single-driving double-point multi-connecting rod cold extruding mechanism comprising a driving motor, a crank, an oscillating rod, a pressurizing trilateral mechanism and a distance-adjusting connecting rod. The driving motor is fixed on a first base point. One end of the crank is connected with an output shaft of the driving motor, one end of the oscillating rod is hinged on a second base point, the distance-adjusting connecting rod is hinged at the other corner of the pressurizing trilateral mechanism, a component force sliding block moving along the vertical direction is connected with the lower end of the distance-adjusting connecting rod, a component force trilateral mechanism connected at the lower end of the component force sliding block is an isosceles triangle with the component force sliding block as vertex angle, and a working sliding block is connected with each of two base angles of the isosceles triangle through working connecting rods respectively. The component force connecting rod adopts the isosceles triangle to hinge symmetrically on the component force sliding block, and the working sliding blocks are symmetrically distributed along the central line of the isosceles triangle of the component force connecting rod, so that the working sliding blocks can effectively realize dynamic balance during cold extruding process.

Description

technical field [0001] The invention belongs to the technical field of cold forging, and in particular relates to a single-drive double-point multi-link cold extrusion mechanism. Background technique [0002] Cold forging is a general term for plastic processing such as cold die forging, cold extrusion, and cold heading. The rod cold extrusion mechanism belongs to the category of cold extrusion. Compared with stamping, cold extrusion has the advantages of high mechanical properties, good surface quality, and less pollution. At present, cold extrusion has been widely used in many engineering fields. However, in view of the tensile properties of the material, cold extrusion must require the slider of the cold extrusion machine to work at a very low speed, which essentially leads to the inefficiency of the cold extrusion machine. At present, the horizontal double-action cold extrusion mechanism (patent publication number: CN 101050809A, see image 3 As shown), it is essential...

AI Technical Summary

Problems solved by technology

However, in view of the tensile properties of the material, cold extrusion must require the slider of the cold extrusion machine to work at a very low speed, which essentially leads to the inefficiency of the cold extrusion machine

At present, the horizontal double-action cold extrusion mechanism (patent publication number: CN 101050809A, see image 3 As shown), it is essentially a single-drive two-point cold extrusion mechanism, but the structure he adopts is to distribute the traditional cold extrusion mechanism symmetrically from the crank part to the left and right. Double mechanism, so this leads to a larger space requirement for the horizontal double-action cold extrusion mechanism, and it is difficult for the two working sliders to be synchronized. Due to the large number of multi-rod mechanisms, the power consumed by the cold extrusion machine will inevitably increase.

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