Manufacture method of rocking frame supporting rod cold extruding V-shaped slot and cold extruding slotting equipment

Abstract

The invention relate to a manufacture method of a rocking frame supporting rod cold extruding V-shaped slot and cold extruding slotting equipment. The invention aims at solving the technical problemsthat multi-pass belt grooves exist in a current process for producing a rocking frame supporting rod so that cold drawing and annealing lead the hardness value of a material to be lowered and the mechanical property thereof to be poor. The technical scheme adopted by the invention is that the manufacture method of the rocking frame supporting rod cold extruding V-shaped slot comprises the following steps: (1) cold rolling of a fillister head; (2) hot rolling of a V-shaped guide slot; (3) clearing; (4) cold drawing of a blank; (5) cold extruding of V-shaped slotting; (6) annealing; (7) clearing; and (8) cold drawing of standard external dimension. The cold extruding slotting equipment comprises an upper extruding roller with a middle provided with a V-shaped convex block, a lower extrudingroller with a middle provided with a semicircular groove, a bearing, a sliding block, a rack, a lower shaft, a nut and an upper shaft, wherein the lower extruding roller is arranged at a lower part ofthe rack, the upper extruding roller is arranged on the sliding block, and two sides of the sliding block are arranged in a sliding chute of the rack and positioned at an upper part of the rack.

Description

technical field [0001] The invention relates to a method for preparing a cold-extruded V-shaped groove of a cradle support rod and a cold-extruded slotting device, which belong to the technical field of production methods and equipment for producing parts for spinning frames. Background technique [0002] The production process usually adopted for the existing cradle rods for spinning frames is: through multi-pass cold drawing with grooves, that is, four sets of cold drawing dies of different specifications are gradually formed by cold drawing, and finally a Φ28mm outer diameter is formed. A V-shaped groove with a depth of 5.5mm and an angle of 100° is pulled out of the outer circular surface. Since the V-shaped groove is 5.5mm deep, it must be completed through cold drawing, annealing, and multiple cold drawing processes, and multiple annealing to relieve stress will reduce the hardness and mechanical properties of the material. Contents of the invention [0003] The pur...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problem that the multi-pass grooved cold drawing and annealing will reduce the hardness value of the material and poor mechanical properties existing in the existing production process of the cradle strut, and provide a cradle strut cold extrusion Preparation method of pressed V-groove and cold extrusion grooving equipment

Images