SU904833A1

SU904833A1 - Sheet-bending machine

Info

Publication number: SU904833A1
Application number: SU782694192A
Authority: SU
Inventors: Николай Васильевич Гаврилов; Виктор Иосифович Гальперин; Владимир Иванович Гончаренко
Original assignee: Воронежское Специальное Конструкторское Бюро Кузнечно-Прессовых Машин И Автоматических Линий
Priority date: 1978-12-08
Filing date: 1978-12-08
Publication date: 1982-02-15

Description

II

Изобретение относитс к обработке металлов давлением, в частности к листогибочным машинам с поворотной гибочной траверсой.The invention relates to the processing of metals by pressure, in particular to bending machines with a rotary bending crosshead.

Известна листогибочна машина, содержаща неподвижную, прижимную и поворотные траверсы, силовые цилиндры перемещени прижимной траверсы , гибочные вставки установленные в прижимной и неподви1кной траверсах, упор дл заготовки и узел компенс,ации перекоса прижимной траверсы, выполненной в виде винтов, установленных на прижимной траверсе и упирающихс в неподвижную траверсу С13..Known bending machine, containing a fixed, pressure and rotary traverse, power cylinders move the pressure traverse, bending inserts installed in the pressure and non-movement traverse, the workpiece support and the node compensating for the bias of the pressure traverse, made in the form of screws mounted on the pressure traverse and abutting in fixed traverse C13 ..

Недостатком этой машины вл етс то, что винты требуют частой и тонкой регулировки дл каждой уолцины изгибаемого листа. Кроме того, усили цилиндров прижима действуют и на лист и на винты. Следовательно, дл получени полезного усили прижима требуетс увеличенное почти вдвое усилие цилиндров.The disadvantage of this machine is that the screws require frequent and fine adjustments for each U-roll flexable sheet. In addition, the clamping cylinder forces act on both the sheet and the screws. Therefore, to obtain a useful clamping force, an almost doubled force of the cylinders is required.

Целью изобретени вл етс увеличение производительности, снижение габаритов и весг машины за счет полного использовани усили прижима.The aim of the invention is to increase productivity, reduce the size and weight of the machine by fully utilizing the pressing force.

С этой целью в листогибочной машине , содержащей неподвижную, прижимную и поворотную траверсы, силовые цилиндры перемещени прижимной траверсы , гибочные вставки, установленные в прижимной и неподвижной траверсах , упор дл заготовки и узел компенсации перекоса прижимной траверсы , этот узел выполнен в виде планок , установленных на неподвижной и прижимной траверсах заподлицо с гибочными вставками перпендикул рно силовым цилиндрам, а в упоре выполнены пазы, соответству|рщие этим планкам.For this purpose, in a sheet bending machine containing a fixed, pressure and rotary crosshead, power cylinders for moving the pressure crosshead, bending inserts installed in the pressure and fixed crossheads, the emphasis for the workpiece, and the bias compensation unit of the pressure crosshead, this assembly is made in the form of slats mounted on the fixed and clamping cross-arms are flush with the bending inserts perpendicular to the power cylinders, and in the stop there are grooves corresponding to these slats.

На фиг.1 показана машина, общий вид; на фиг. 2 - то же , вид сверху на неподвижную траверсу;.на фиг. 3 разрез А-А на фиг. 1.Figure 1 shows the machine, a general view; in fig. 2 - the same, top view on the fixed traverse; FIG. 3 is a section A-A in FIG. one.

Claims

The machine consists of left 1 and right 2 racks, between which the stationary traverse 3 is stationary 3. 8 racks 1 and 2 are installed the traverse clamp k and the pivoting traverse 5 is fastened, as well as the hydraulic cylinders 6, carrying out the vertical traverse displacement. On a fixed, traverse 3, a rear stop is mounted, which contains the bar 7 with the grooves 8, the location and width of the strips 9 corresponding to the gyu, which are fixed to the cross bar. On the traverse 3, respectively, are installed, the plaques 10, 8 of the clamping traverse are fitted with a flexible insert 11, and in traverse 3 - an insert 12. The slats 9 and 10 are flush with these inserts. The machine works as follows. The bent sheet is laid on the non, -, movable yoke and abutted against the rear support bar 7. Then A is lowered and the presser is pressed against the fixed yoke to the fixed yoke. Turning on the yoke 5 when turning, bends the sheet around the insert 11. After turning the predetermined angle, the turning yoke returns to its original position. To obtain the second and subsequent bends, an emphasis moves the sheet forward a predetermined amount and produces. In this case, the grooves of the stop, covering the planks, allow the sheet to be moved to the position as close as possible to the bending axis. During sheet pressing, the hydraulic cylinders are applied to the sheet through the slats located under the center of the pressing force without creating a tipping moment, which causes the sheet to shift and reject, as well as wear to the clamping beam. In this case, all the efforts of the hydraulic cylinders are transferred to the sheet, which requires significantly less (up to. 50%) force of the hydraulic cylinder, and consequently, reduction of energy consumption, dimensions and mass of hydraulic cylinders at the same pressures. Moreover, no adjustment is required when bending different sheets , which leads to an increase in production. Claims of an Invention Bending Machine Including Fixed, Clamping and Swivel Traverses, Moving Traverse Cylinders Moving Cylinders, Bending Extensions installed in Clamping and Fixed Traverses, the workpiece stop and the clamping skew compensation node, which is designed to reduce dimensions and weight of the machine due to the complete use of the clamping force, the node of the bias of the bias of the clamping beam is made in the form of slats mounted on the fixed and clamping yoke inserts flush with bending perpendicular to the ram and anvil made grooves corresponding to these strips. Sources of information taken into account during the examination 1. The sheet bending machine of the company FsvrJn of the type RIZ is described in the review of the Scientific Research Institute of Agrochemical Research, C-3 series Bending machines with a rotary bending beam, M., 1976, p. 16-20 (prototype).