DE2127920B2 - Elastic table mounting on mechanical forging presses - Google Patents

Description

1 sheet of drawings

Claims (2)

1 2 direction of the wedge in the mentioned recess of the claims: wedge displaceable, preferably by means of appropriately transversely arranged adjusting screws. This 1. The elastic table mounting on the mechanical adjustment wedge is, as I said, in the direction of displacement of the Forging presses, in which a wedge-shaped 5 wedge is supported by plate spring assemblies on the press frame from the table top by means of an underneath. If the load is higher, the plate can be locked Wedge is set in the height of the spring assemblies elastically, which means that the wedge and is, characterized in that the press table can thus also be elastically retreated are known per se, elastic support. This provides the desired overload protection means Steel springs in an underlying, transverse ίο tion achieved in a surprisingly simple manner. intended for the direction of displacement of the wedge (5) - The support of the lower tool carrier with nen recess an adjusting wedge (4) provided by means of steel springs is already from the German is, which is known in the direction of displacement of the patent 87419. And is supported Wedge (5) on the press frame (7) over several thereby the press table on a lever close to it Disc spring assemblies (2) supported. 15 fulcrum while the lever is at its free 2. Elastic table mounting according to spoke 1, the end is supported on steel springs. It is about characterized in that between table so around a rather bulky design, in particular plate (6) and wedge (5) and between wedge (5) and no height adjustment of the table top is provided - press stand (7) sliding plates (8) with low hen. In contrast, it is the Erfin coefficient of friction are arranged, wherein the boundary surface 20 by a means of horizontally displaceable keystones the moving parts to a lubricating device les height-adjustable table top, as connected at the beginning are. give. It is also known that a shock absorption Force deflection is provided, with a thawing 25 chender wedge over lubricant on two over springs The invention relates to an elastic table position-supported wedges acts (GB-PS 1077 546).
rang of mechanical forging presses, in which it is finally proposed that sliding plates with a low coefficient of friction be positioned between the wedge-shaped table top by means of a slidable wedge arranged beneath it and between the wedge and the press. 30 are ordered, with the interfaces of the movable Such presses are from the magazine »metal for- chen parts are connected to a lubricating device, ming ", July 1967, p. 196 or" Technische Rund- It should be mentioned that the device according to the schau ”, September 1967, p. 7, previously known. The wedge invention can also be used with other machines can be moved by means of pressure screws. This is where this makes sense. The table tier is rigid, so it cannot be retreated. 35 An exemplary embodiment of the There is a risk of overloading the location described on the basis of the drawing, multiple unit of the press. Namely, if lower die F i g. 1 shows schematically a vertical and upper die in front of the lower reversal point; come to rest against each other, step with rigid F i g. 2 is a plan view from above, with the table bearing range enormously high forces in the drive 4 ° table top being removed and the wedge being withdrawn on the left. In operation, in particular, volume is cut to show the adjustment wedge
differences in the blanks to be pressed are not. The wedge-shaped table top 6 is based on the completely ruled out, which leads to larger ridge wedge 5, which in turn is shown on the stand 7, which in turn is supported by overloads. The wedge 5 v / eist on its underside, leads. There are mechanical overload safeguards 45 on the left, a wedge-shaped recess in which a wrestling in the drive train is known, but these are arranged in setting wedge 4. The wedge 5 is supported in the form of predetermined breaking points. However, in its direction of displacement (from left to right), it is quite difficult to precisely adjust the predetermined breaking load sufficiently via the contact surface 14 on the adjusting wedge 4. Also, in the case of one which in turn is predetermined breaking in this direction of displacement, the corresponding part with the predetermined breaking 50 of the wedge 5 must be replaced via disk spring assemblies on the stand 7, which each supports a standstill. Namely, the disc springs 2 are each meant by the state of the press operation. a cup-shaped holder 1 with a central thread In contrast, the invention is based on the task of rod and nut 3 held together, to create an elastic table bearing of the type initially and in this retaining ring in which the setting wedge 4 is used on Grand 55.
the elasticity a reliable overload protection To adjust the height of the table top 6 are achieved with a simple structure. The solution of this screw 10, 11 in the stand 7 transversely to the task is according to the invention that it can be screwed to the sliding direction of the wedge 5, with elastic support known per se by means of the displacement of the adjusting wedge 4 over the steel springs in a lower, transversely to 60 inclined contact surface 14 is implemented in the sliding direction of the wedge provided recess of the main part 5, so that the table is provided an adjusting wedge, which is adjusted in the direction of plate 6 in its height,
the displacement of the wedge on the press frame over To reduce friction, sliding plates 8 are supported by several sets of disc springs. between table top 6 and wedge 5 and between In the case of the rigid table mounting according to the state of 65, wedge 5 and stand 7 are provided, whereby the opposing Technology, the adjustment screws extend in other sliding contact surfaces by means of Direction of displacement of the wedge. According to the invention, lubrication device α via lubrication lines on the other hand, an adjusting wedge is to be lubricated across the sliding range.