SU495165A2

SU495165A2 - Device for cutting cylindrical billets

Info

Publication number: SU495165A2
Application number: SU1917397A
Authority: SU
Inventors: Вадим Борисович Любушин; Григорий Ефимович Скороход
Original assignee: Предприятие П/Я Р-6205
Priority date: 1973-05-10
Filing date: 1973-05-10
Publication date: 1975-12-15

Description

Изобретение относитс к области обработки металлов давлением.This invention relates to the field of metal forming.

Известно устройство дл резки цилиндрических заготовок но авт. св. № 470368, содержащее корпус со смонтированным в нем ползуном и рабочими элементами, выполненными в виде двух втулок, закрепленных во втулкодержател х , с которыми соединены штоки поршней двух силовых цилиндров, надноршневые полости которых соединены между собой, а также смонтированный в нижней части корпуса регулировочный силовой цилиндр, шток поршн которого св зан с одним из втулкодержателей , при этом надпоршнева и подпоршнева полости регулировочного цилиндра сообщены между собой. Однако это устройство не обеспечивает получени высокого качества реза и стойкости инструмента.A device for cutting cylindrical blanks but auth. St. No. 470368, comprising a housing with a slider mounted therein and working elements made in the form of two sleeves fixed in sleeve holders with which the piston rods of two power cylinders are connected, the piston cavities of which are interconnected, and the power control mounted in the lower part of the housing a cylinder, the piston rod of which is associated with one of the sleeve holders, wherein the piston and the piston cavity of the adjustment cylinder are in communication with each other. However, this device does not provide high quality cutting and tool life.

Цель изобретени - повышение качества реза и стойкости инструмента.The purpose of the invention is to improve the quality of cutting and tool life.

Предлагаемое устройство отличаетс тем, что в нижней части корпуса установлен дополнительный регулировочный силовой цилиндр, шток поршн которого св зан с втулкодержателем , при этом надноршнева и подпоршнева полости дополнительного регулировочного силового цилиндра сообшаютс между собой.The proposed device is characterized in that an additional adjustment power cylinder is installed in the lower part of the housing, the piston rod of which is connected to the sleeve holder, and the additional piston and piston cavity of the additional adjustment power cylinder are interconnected.

Описываемое устройство схематично изображено на чертеже (исходное положение перед началом резки).The described device is shown schematically in the drawing (the initial position before cutting).

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На столе 1 пресса закреплена плита 2, на которой установлены на колонках (не показаны ) втулкодержатели 3 и 4. В правом втулкодержателе 3 расположена режуща втулка 5, а в левом втулкодержателе 4 - режуща втулка 6. К правому втулкодержателю 3 прикреплены шток 7 верхнего силового цилиндра 8 и шток 9 нижнего регулировочного силового цилиндра 10. К левому втулкодержателю 4A plate 2 is fixed on the press table 1, on which the sleeve holders 3 and 4 are mounted on columns (not shown). The cutting sleeve 5 is located in the right sleeve holder 3, and the upper power rod 7 is attached to the left sleeve holder 4. cylinder 8 and rod 9 of the lower adjusting ram 10. To the left sleeve holder 4

прикреплен шток И верхнего силового цилиндра 12, механизм 13 удалени отрезаемой заготовки и шток 14 нижнего дополнительного регулировочного силового цилиндра 15. Сообщающиес верхние силовые цилиндры 8 и 12the stem of the upper power cylinder 12, the mechanism 13 for the removal of the cut billet, and the stem 14 of the lower additional adjustment power cylinder 15 are attached. The connecting upper power cylinders 8 and 12 are connected

закреплены на ползуне 16 пресса. Рабочие полости нижних силовых цилиндров 10 и 15 соедин ютс соответственно через клапаны 17 и 18.16 press are fixed on the slider. The working cavities of the lower power cylinders 10 and 15 are respectively connected through valves 17 and 18.

На плите 2 установлены также жесткийPlate 2 is also hard mounted

упор 19 и направл юща 20. В разрезаемой трубе 21 наход тс режущие оправки 22 и 23. От трубы 21 отрезаетс заготовка 24.an anvil 19 and a guide 20. In the pipe 21 being cutted there are cutting mandrels 22 and 23. From the pipe 21, the blank 24 is cut.

При ходе ползуна 16 пресса вниз происходит следующее:When the slide 16 presses down, the following occurs:

Claims

- the right sleeve holder 3 is lowered, for which the valve 17 of the lower split cylinder 10 is turned on and the working fluid flows from the lower cavity to the upper one, while the left sleeve holder 4 remains stationary and the valve 18 of the lower additional control power cylinder 15 is closed; a single insertion of the cutting sleeves 5 and the mandrel 22 located in the sleeve holder 3 occurs; valve 17 closes, valve 18 opens; accordingly, the sleeve holder 4 is lowered (running), and the sleeve holder 3 is fixed; a single insertion of the cutting sleeves 6 and onravki 23 occurs; thus, alternately turning on and off valves 17 and 18, perform pulsating reversible cutting, with the holders during the working stroke of the press slide alternately moving (lowering) in the same direction until complete separation of the workpiece 24 from the pipe 21; The sleeve holder 4 is lowered to the lowest position where the mechanism 13 pushes the cut piece. When the press ram moves upward, the valve 17 opens successively and the right sleeve holder 3 rises until it stops 19, while the valve 18 is closed and the left sleeve holder 4 remains stationary; the working fluid flows in the lower power cylinder 10 from the upper cavity to the lower; then the valve 18 opens, and the left holder rises to its original position; the pipe 21 is fed into the device in a feed step manually or by a mechanism that is not shown in the drawing. After this, the cycle of operation of the device is repeated. The proposed device can be used with the same positive effect for cutting round or any other rolled products, and only the shapes of the working cavities of the cutting tools will change accordingly. The invention The device for cutting cylindrical blanks according to ed. St. No. 470368, characterized in that, in order to improve the cut quality and tool life, a further adjusting ram cylinder is installed in the lower part of the housing, the piston rod of which is connected to the sleeve holder, and the piston and piston cavity of the cylinder communicate with each other.

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