Pre-twisted wire hemispherical end forming cutter head, preparation method of cutter head and forming device

Abstract

The invention discloses a hemispherical end forming cutter head for pre-twisted wire, a preparation method for the cutter head and a forming device, which belong to the technical field of electric power fittings production, manufacturing and processing, and solve the problem of the slow processing speed of the traditional pre-twisted wire end forming or the structure of processing equipment Design complex problems. The preparation method of the cutter head includes the processes of preparing materials, forming the sub-cutter heads, and arranging the sub-cutter heads; The head; the forming device includes a workbench, a power unit, a clamping unit and a guiding unit. The cutter head, the preparation method of the cutter head and the forming device using the cutter head of the present invention solve the problem of pre-twisted wire end forming processing efficiently and reliably at very low cost, and are of great significance in the field of pre-twisted wire forming of electric power fittings.

Description

technical field [0001] The invention belongs to the technical field of electric power fittings production, manufacturing and processing. Specifically, it relates to a kind of ingenious design concept, easy processing of the cutter head, fast forming speed of the hemispherical end of the pre-twisted wire, easy processing of the cutter head, and effective avoidance of the tip of the pre-twisted wire. Discharge phenomenon, a pre-twisted wire hemispherical end forming cutter head for effectively ensuring the safety of the power grid, and a preparation method of the cutter head; the invention also relates to a forming device in particular using the cutter head. Background technique [0002] Pre-twisted wire is a connecting fitting for overhead power conductors and power overhead optical cable terminals, suspensions, joints, etc. Pre-twisted wire generally includes aluminum wire pre-twisted wire and aluminum-clad steel pre-twisted wire. Among them, pre-twisted aluminum wires are ...

AI Technical Summary

Problems solved by technology

[0003] At the beginning, the shape of the end of the pre-twisted wire is manually polished on the grinding wheel to obtain the desired shape based on the feel and experience. The forming speed is slow and the product consistency is relatively poor. For products that are not well polished, there will still be hidden dangers of corona.

There are also some molds that are pressed and formed by molds, but there will be edges, corners and burrs at the joint of the upper and lower molds, which require manual secondary grinding. The process cycle is long, the processing speed is slow, and the production cost is high.

Later, some companies also introduced automation equipment, but the design of automation equipment is very complicated, the manufacturing cost is high, and the maintenance cost is also high.

For example, the authorized announcement number is CN101695733B, the authorized announcement date is 2011.08.17, and the invention name is a Chinese patent for a parrot-shaped hanging pre-twisted wire forming equipment and its forming method. The fully formed automation equipment mainly includes "chassis, main motor, worm gear, worm, cutting, motor, contact switch, control cam, guide rail groove, tightening wheel, bracket and foot switch; worm gear and worm are installed on the On the upper part of one side of the chassis, four control cams are installed on the worm gear shaft, which are respectively the first control cam, the second control cam, the third control cam, and the fourth control cam; four contact switches are installed on the lower part of the control cam , are respectively the first contact switch, the second contact switch, the third contact switch, and the fourth contact switch, and the four control cams correspond to the four contact switches respectively; the main motor is installed on one side of the chassis, and the main motor A small pulley is installed on the output shaft, and a large pulley is installed at one end of the worm. The small pulley passes through the transmission belt, and the transmission worm and the worm wheel drive the four control cams on the worm shaft to run; the cutting motor is installed on the upper part of the case. The output shaft of the cutting motor is equipped with a cutting head. , one side of the motor output shaft is equipped with a guide rail groove, the front end of the guide rail groove has a limiter, and a tightening wheel is installed outside the guide rail groove, and the tightening wheel is installed on the other end of the worm gear shaft; the bracket is installed on the chassis, and the foot switch It can be seen that the technical solution is very complicated. For mechanical equipment, the complex structure will not only bring about high cost, but also a series of problems such as high failure rate and high maintenance cost.

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