SU1274864A2

SU1274864A2 - Disk shears

Info

Publication number: SU1274864A2
Application number: SU853894609A
Authority: SU
Inventors: Исаак Григорьевич Динер; Александр Николаевич Лесняк
Original assignee: Специальное Проектно-Конструкторское И Технологическое Бюро Реле И Автоматики
Priority date: 1985-05-14
Filing date: 1985-05-14
Publication date: 1986-12-07

Abstract

Изобретение относитс к обработке металлов лав.лением. а именно к устройствам Л./1Я резки листового .материала. Ие.чью изобретени в;1 етс повышение надежности дисковы.х ножииц и vлvчиJeниe качества реза за счет устранени вибраций и нестабильности зазора между режущими дисками . При неремещении сепаратора 8 с шариками 9 по канавке в направлении, перпендикул рном оси дисков, шарики 9 взаимодействуют с коническими поверхност ми канавки и раздвигают режущие кромки диска 7. Нри вращении дисков 7 сепаратор 8 остаетс неподвижным при вращении шариков 9, которые перекатываютс по коническим поверхност м канавки и один по другому без проскальзывани . При по влении в процессе работы ножниц некачественного реза его устран ют перемещением шариков радиально по конической поверхности каиавок . 4 ил. (Л N3 4;i 00 О5 ГОThe invention relates to the processing of metals by love. namely, to the devices L. / 1I cutting sheet. Material. The inventions of the invention improve the reliability of the disc cutters and improve the quality of the cut by eliminating vibrations and the instability of the gap between the cutting discs. When the separator 8 is not displaced with the balls 9 along the groove in the direction perpendicular to the axis of the disks, the balls 9 interact with the conical surfaces of the groove and push the cutting edges of the disk 7. When the disks 7 rotate, the separator 8 remains stationary when the balls 9 rotate, which roll over the conical surface m grooves and one another without slipping. When scissors appear in the process of poor-quality cutting, they are eliminated by moving the balls radially along the conical surface of the blades. 4 il. (L N3 4; i 00 O5 GO

Description

Изобретение относится к обработке металлов давлением, а именно к устройствам для резки листового материала и является усовершенствованием дисковых ножниц по авт. св. № 1 156866.The invention relates to the processing of metals by pressure, and in particular to devices for cutting sheet material and is an improvement on circular shears according to ed. St. No. 1 156866.

Целью изобретения является повышение надежности дисковых ножниц и улучшение качества реза за счет устранения вибраций и нестабильности зазора между режущими дисками.The aim of the invention is to increase the reliability of disk shears and improve the quality of the cut by eliminating vibrations and instability of the gap between the cutting disks.

На фиг. 1 схематично изображены дисковые ножницы, общий вид; на фиг. 2 — разрез А—А на фиг. 1; на фиг. 3 — сепаратор; на фиг. 4 — разрез Б—Б на фиг. 3.In FIG. 1 schematically shows disk shears, general view; in FIG. 2 — section A — A in FIG. 1; in FIG. 3 - separator; in FIG. 4 - section B — B in FIG. 3.

Дисковые ножницы содержат станину корпуса (не показана) со стенками 1, на которых установлены два параллельных вала 2 и 3. На валу 2 смонтированы режущие диски 4. Между ними установлены промежуточные 5 и прижимные 6 втулки. Режущие диски 4 шаржированы по торцам алмазным или абразивным микропорошком на величину рабочей части, на валу 3 смонтированы режущие диски 7. Между ними также установлены промежуточные 5 и прижимные 6 втулки. Режущие диски 7 выполнены разрезными с образованием канавок. В диск входит разжимающий сепаратор 8, обойма которого выполнена в виде пластины переменного сечения с его увеличением от рабочей зоны к месту крепления. В пластине выполнено одно или несколько отверстий, Е5 каждом из которых размещено четное количество твердых шариков 9 с возможностью взаимодействия их между собой и с боковыми поверхностями клиновых канавок. Отверстия в пластине выполнены в плоскости, проходящей через оси валов, или симметричной ей в зоне взаимодействия шариков с дисками.Disc scissors contain a frame of the case (not shown) with walls 1 on which two parallel shafts 2 and 3 are mounted. Cutting discs 4 are mounted on the shaft 2. Intermediate 5 and clamping 6 bushings are installed between them. The cutting discs 4 are sharpened at the ends with diamond or abrasive micropowder by the size of the working part, cutting discs 7 are mounted on the shaft 3. Intermediate 5 and clamping 6 bushings are also installed between them. The cutting discs 7 are made split with grooves. The disk includes an expanding separator 8, the cage of which is made in the form of a plate of variable cross section with its increase from the working area to the place of attachment. One or more holes are made in the plate, E5 each of which contains an even number of solid balls 9 with the possibility of their interaction with each other and with the side surfaces of the wedge grooves. The holes in the plate are made in a plane passing through the axis of the shafts, or symmetrical to it in the zone of interaction of the balls with the disks.

Сепаратор 8 жестко соединен с устройством 10 индивидуального натяжения с предотвращением от вращения.The separator 8 is rigidly connected to the device 10 individual tension preventing rotation.

Конфигурацию и глубину канавок дисков 7 и диаметр шариков 9 выбирают таким образом, чтобы обеспечивалось раздвижение режущих кромок дисков 7 (за счет упругих деформаций) при достаточной прочности режущих дисков 7.The configuration and depth of the grooves of the disks 7 and the diameter of the balls 9 are chosen so that the cutting edges of the disks 7 are moved apart (due to elastic deformations) with sufficient strength of the cutting disks 7.

Для лучшей приработки режущих кромок диски 4 и диски 7 выполняют одинаковыми по наружному диаметру.For a better break-in of the cutting edges, the disks 4 and disks 7 are made identical in outer diameter.

Устройство работает следующим образом,. Перемещая сепаратор 8 с шариками 9 по канавке в направлении, перпендикулярном оси дисков, шарики 9, взаимодействуя с коническими поверхностями канавки, раздви⁵ гают режущие кромки диска 7. На холостом ходу производят притирку и приработку режущих кромок. Однако при вращении дисков 7 сепаратор 8 остается неподвижным; вращаются шарики 9, перекатываясь по ко10 ническим поверхностям канавки и друг по другу без проскальзывания.The device operates as follows. By moving the separator 8 with the balls 9 along the groove in the direction perpendicular to the axis of the disks, the balls 9 interacting with the conical surfaces of the grooves ⁵ move the cutting edges of the disk 7. Idling, grinding and running-in of the cutting edges is performed. However, when the disks 7 are rotated, the separator 8 remains stationary; balls 9 rotate, rolling on the conical surfaces of the groove and on each other without slipping.

При появлении после определенного времени работы, по крайней мере, одного некачественного реза (который определяют ¹⁵ визуально) его устраняют за счет регулирования зазора с помощью узла натяжения, перемещая радиально шарики по конической поверхности канавок.When at least one low-quality cut appears after a certain working time (which is determined ¹⁵ visually), it is eliminated by adjusting the gap using the tension unit, moving the balls radially along the conical surface of the grooves.

При необходимости порезки материала ²⁰ другой толщины, например более толстого, с помощью узлов 10 натяжения опускают разжимающие сепараторы 8, шарики радиально перемещаются от центра к периферии и режущие диски 7 под действием упругой деформации сжимаются, увеличивая рабочий зазор.If it is necessary to cut the material ^{20 of a} different thickness, for example thicker, the tensioning separators 8 are lowered by means of the tension units 10, the balls radially move from the center to the periphery and the cutting disks 7 are compressed under the action of elastic deformation, increasing the working gap.

Claims

The invention relates to the processing of metals by pressure, in particular to devices for cutting sheet material, and is an improvement of disc shears according to ed. St. № 1 156866. The aim of the invention is to increase the reliability of disc shears and improve cutting quality by eliminating vibrations and the instability of the gap between the grooves and their disks. FIG. 1 schematically shows disc shears, general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 - separator; in fig. 4 shows a section BB in FIG. 3. Disk shears contain a frame frame (not shown) with walls 1, on which two parallel shafts 2 and 3 are mounted. On the shaft 2 are mounted cutting discs 4. Intermediate 5 and 6 sleeves are mounted between them. The cutting discs 4 are animated at the ends with diamond or abrasive micropowder for the size of the working part, the disks 7 are mounted on the shaft 3. Intermediate 5 and clamping 6 bushings are also installed between them. Cutting discs 7 are split with the formation of grooves. The disk includes a unclenching separator 8, the holder of which is made in the form of a plate of variable cross section with its increase from the working area to the attachment point. One or several holes are made in the plate, in each of which there is an even number of solid p-ricks 9 with the possibility of their interaction with each other and with the side surfaces of the c, 1 type grooves. The holes in the lasterus are punched in the plane passing through the smallpox; s, or symmetrical in the area of interaction of the balls with the disks. The separator 8 is rigidly connected to the individual tensioning device 10 with prevention from rotation. The configuration and depth of the grooves of the disks 7 and diametre (narikov 9 is chosen so that it can be cut off) with a sufficient 1 rotation: 30 of the cutting disks 7. For the running-in of the cutting edges the disks 4 and the discs 7 are made the same but with the outer diameter. The device works in the following way. Moving the separator 8 with the balls 9 along the groove in the direction perpendicular to the axis of the discs, the balls 9, interacting with the conical surfaces of the groove, push the cutting edges of the disk 7. At idle, the grinding and grinding of the cutting edges are done. However, as the discs 7 rotate, the separator 8 remains stationary; the balls 9 rotate as they roll over the copy surfaces of the groove and over each other without slipping. If it appears after a certain period of operation, but at least one poor-quality cut (which is determined visually), it is eliminated by adjusting the gap with the help of a tension knot, moving the P-riki radially along the conical surface of the grooves. When necessary, and cutting the material, 1a, another tolnakhina, for example, a thicker one, using tensioning units 10, lower the unclenching separators 8, the balls radially move from the center to the periphery and the cutting disks 7 under the action of elastic deformation compress, increasing the working gap. Formula of invention Disc shears according to ed. St. LG 1 156866, characterized in that, with a price, 1 of increasing the reliability and quality of the cut by eliminating vibration and instability of the gap between the cutting knives, the unclamping ring is made in the form of a senator, rigidly fixed on the tension knot, the yoke The senator is made in the form of a plate of non-temporal cross section with its increased working area to the crepe site: first with at least (; the bottom hole in which an even number of solid balls with their potential for interfacing with each other and with the side surfaces of the wedge grooves)disks. This hole is made in the plane, the passage passes through the axes of the wa.uv and.1i and symmetrical to it, in the zone of interaction niafMiKOB with the surfaces to, 1povyh grooves of the disks.

B-5

(Par.