SU837622A1

SU837622A1 - Machine for waste free cutting of rounds

Info

Publication number: SU837622A1
Application number: SU792819900A
Authority: SU
Inventors: Авий Исаакович Эрлих; Моисей Мотелевич Брухис; Владимир Николаевич Просяник
Original assignee: Кишиневский Завод "Электромашина"
Priority date: 1979-09-21
Filing date: 1979-09-21
Publication date: 1981-06-15

Description

Изобретение относится к обработке металлов давлением и может быть использовано в машиностроении для резки круглого проката.The invention relates to the processing of metals by pressure and can be used in mechanical engineering for cutting round steel.

Известен станок для безотходной резки круглого проката, содержащий корпус, в радиальных пазах которого' установлены подвижные ножи, неподвижный режущий инструмент и приводную поворотную обойму, установленную с возможностью взаимодействия с подвижными ножами £1 ] ·Known machine for non-waste cutting of round steel, comprising a housing, in the radial grooves of which are mounted movable knives, a stationary cutting tool and a drive rotary holder installed with the possibility of interaction with movable knives £ 1] ·

Недостатком этого станка является невысокая его производительность ввиду того, что длина ножей постоянна и требуется большое количество ударов ножа о прокат до его разделения.The disadvantage of this machine is its low productivity due to the fact that the length of the knives is constant and requires a large number of strokes of the knife on rolling before it is divided.

Цель изобретения - повышение производительности.The purpose of the invention is to increase productivity.

Поставленная цель достигается тем, что в станке для безотходнФй резки круглого проката, содержащем корпус, в радиальных пазах которого установлены подвижные ножи, неподвижный ре-, жущий инструмент и приводную поворотную обойму, установленную с возможностью взаимодействия с подвижными ножами, подвижные ножи выполнены различной длины.This goal is achieved by the fact that in the non-waste cutting machine for round rolling, comprising a housing, in the radial grooves of which are mounted movable knives, a stationary cutting tool and a driving rotary holder installed with the possibility of interaction with movable knives, movable knives are made of different lengths.

Разность длины смежных подвижных ножей определена соотношением t-hta* е*~й-’ где ty. * - максимальное внедрение ножа в прокат до его отделения;The length difference of adjacent movable knives is determined by the relation t-hta * e * ~ y- ’where ty. * - maximum introduction of the knife into the rental before its separation;

η - число ножей.'η is the number of knives. '

На фиг. 1 изображен станок для безотходной резки круглого проката, разрез; на фиг. 2 - разрез А-А на фиг. Г.In FIG. 1 shows a machine for non-waste cutting of round steel, cut; in FIG. 2 is a section AA in FIG. G.

Корпус станка 1 с неподвижным режущим инструментом 2 крепится к станине 3. В пазах корпуса расположены подвижные в радиальном направлении Призматические ножи 4 с выступом в Хвостовой части. Поворотная обойма 5 Приводится во вращение через предохранительный штифт 6 и шкив 7, клиноременную передачу 8 электродвигателем 9, останавливается тормозе»! 10. Подача проката 11 производится до регулируемого упора 12. Ножи 4 выполнены Сличающимися по длине друг от друга на величину _ζ ^ь ИThe machine body 1 with a stationary cutting tool 2 is attached to the bed 3. In the grooves of the body are located radially movable Prismatic knives 4 with a protrusion in the tail section. Swivel ring 5 It is driven into rotation through a safety pin 6 and a pulley 7, V-belt drive 8 by an electric motor 9, the brake stops ”! 10. The rolled 11 is made to supply the adjustable stop 12. The knives 4 are formed along the length are matched to each other by the value ^L and _ζ

Станок работает следующим образом.The machine operates as follows.

Прокат 11 подается до регулируемого упора 12 и закрепляется. Вращение от электродвигателя 9 передается через клиноременную передачу 8 на шкив 7 и через штифт 6 на поворотную обойму 5. Обойма 5 ,при повороте своим выступом воздействует на подвижный нож 4, который, перемещаясь, проиэ-, водит надрезку прутка 11. Затем диамет'рально расположенный нож производит сдвиг отрезаемой части прутка в противоположном направлении и т.д. Ножи 4, скользя своей хвостовой частью по пазу 13 поворотной обоймы 5, возвращаются в исходное положение и удерживаются там. Ножи располагаются таким образом, что величина внедрения каждого последующего ножа в прокат увеличивается. Нож, входящий в контакт с выступом последним, полностью отрезает заготовку, т.е. через пол-оборота поворотной обоймы. При условии двух выступов на поворотной обойме их располагают друг относительно друга под углом .VHire 11 is fed to an adjustable stop 12 and fixed. Rotation from the electric motor 9 is transmitted through the V-belt drive 8 to the pulley 7 and through the pin 6 to the rotary yoke 5. The yoke 5, when turning with its protrusion, acts on the movable knife 4, which, when moving through, leads the notch of the rod 11. Then diametrically the located knife makes a shift of the cut part of the bar in the opposite direction, etc. The knives 4, sliding their tail in the groove 13 of the rotary holder 5, are returned to their original position and held there. The knives are arranged in such a way that the amount of introduction of each subsequent knife into the rental increases. The knife that comes into contact with the last protrusion completely cuts off the workpiece, i.e. after half a turn of the rotary holder. Under the condition of two protrusions on a rotary holder, they are positioned relative to each other at an angle .V

Число призматических ножей рекомендуется брать не менее шести, а диаметрально расположенные ножи могут быть выполнены примерно равными по длине.The number of prismatic knives is recommended to take at least six, and diametrically located knives can be made approximately equal in length.

Предлагаемый станок конструктивнее, проще и обладает высокой производительностью за счет того, что ножи выполнены разной длины и поэтому заготовка отделяется через пол-оборота поворотной обоймы.The proposed machine is more constructive, simpler and has high productivity due to the fact that the knives are made of different lengths and therefore the workpiece is separated after half a turn of the rotary holder.

Claims

The invention relates to the processing of metals by pressure and can be used in mechanical engineering for cutting rolled steel. A known machine for waste-free cutting of round bars, comprising a housing, in the radial grooves of which movable knives are installed, a fixed cutting tool and a driving swivel holder installed with the possibility of interacting with movable NOJs1MI} - The disadvantage of this machine is its low productivity due to the fact that the length of the knives is constant and requires a large number of knife strokes on the rolling before it is separated. The purpose of the invention is to improve performance. This goal is achieved by the fact that in a machine for continuous cutting of round steel, comprising a housing, in which rational grooves there are movable knives, stationary cutting tools and a rotatable drive holder installed with the possibility of interacting with movable knives, movable knives are made of different lengths. The difference in the length of adjacent movable knives is determined by the ratio p. , B - And where ty is the maximum introduction of the rental into rolling before its separation; n is the number of knives. FIG. 1 shows a machine for waste-free cutting of round bars, a section; in fig. 2 shows section A-A in FIG. The machine body 1 with the fixed cutting tool 2 is attached to the bed 3. In the slots of the body, prismatic knives 4 with a protrusion in the tail section are positioned in the radial direction. The rotary sleeve 5 is rotated through the safety pin b and the pulley 7, the worm gear 8 by the electric motor 9, is stopped by the brake 10. The steel 11 is fed to the adjustable stop 12. The knives 4 are made different in length from each other. , ± sha. c - and the machine operates as follows. The car 11 is fed to the adjustable stop 12 and fixed. The rotation from the electric motor 9 is transmitted through the V-belt transmission 8 to the pulley 7 and through the pin b to the rotary sleeve 5, the ferrule 5 | When turning with its projection, it acts on the movable knife 4, which, when moved, makes an incision of the bar 11. Then the diameter A knife that is located in the rear produces a shift in the cut-off part of the rod in the progivol direction, and so on. The knives 4, with their tail part slipping along the groove 13 of the rotary holder 5, return to their original position and are held there. The knives are positioned in such a way that the amount of insertion of each subsequent knife in the rolling increases. The knife entering the contact Q with the last lip completely cuts the workpiece, i.e. over a half-turn swivel cage. Provided that there are two protrusions on the rotary holder, they are positioned relative to each other at an angle. - The number of prismatic knives is recommended to take at least six, and diametrically placed knives can be made approximately equal in length. The proposed machine is more constructive, simpler and has a high productivity due to the fact that the knives are made of different lengths and therefore the workpiece is separated through a half-turn of the rotary holder. Claim 1. The machine for wasteless cutting of round steel, comprising a housing, in the radial grooves of which there are mounted movable knives, a fixed cutting tool and a driving rotary holder, installed with the possibility of interaction with movable knives, characterized in that, for the purpose of productivity, movable knives made of different lengths.

2. The machine according to claim 1, characterized in that the difference in the length of adjacent movable knives is determined by the relation ± where t is the maximum introduction of the knife into rolling before it is separated; n is the number of knives. Sources of information taken into account for the expertise 1. USSR Certificate of the USSR No. 549278, cl. In 23 D 23/00, 1975.