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Drives with linear motors for presses

A driving device and linear motor technology, applied in the direction of presses, stamping machines, manufacturing tools, etc., can solve problems such as large structural space and achieve high efficiency

Inactive Publication Date: 2016-03-09
SCHULER PRESSEN GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This arrangement requires a large installation space below the press table in the working direction of the press

Method used

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  • Drives with linear motors for presses
  • Drives with linear motors for presses
  • Drives with linear motors for presses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] figure 1 A schematic side view of the stretching press 10 is shown. The stretching press 10 has a press frame 11 on which a push rod 12 is mounted displaceably in the working direction A. FIG. Via the press main drive 13 the ram 12 can be moved linearly in the working direction A. The working direction A preferably extends in the vertical direction.

[0019] The push rod 12 carries an upper tool 14 . At a distance from the upper tool 14 , the lower tool 15 is arranged on a press table 16 of the press frame 11 . On the side opposite the lower tool 15 in the working direction A, the drawing press 10 has a table 17 with a floating plate 18 . The drive 19 serves for the positioning and / or movement of the floating plate 18 in the working direction A of the stretching press 10 . The drive device 19 can therefore also be referred to as a table pad drive.

[0020] A plurality of pressing rods 20 are arranged on the floating plate 18 , which pass through the press table 16...

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PUM

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Abstract

The invention relates to a drive device (19) for a secondary drive of a press and in particular of a drawing press (10). The drive device (19) serves in particular as a bed cushion drive. It has an electric linear motor (27), the rotor (46) of which is rigidly connected to a transmission piston (35) of a fluidic transmission unit (28). The fluidic transmission unit has a first pressure chamber (38a), which is connected via a first fluid line (39) to a first working chamber (41) of a working cylinder (29). The fact that the piston area (F1) of the transmission piston (35) that is adjacent to the first pressure chamber (38a) is smaller than the piston area (F3) of the working piston that is adjacent to the first working chamber (41) means that an increase in the force of the linear motor (27) by a factor corresponding to the ratio of the areas is achieved. This allows the forces necessary at the working cylinder (29) to be achieved with the aid of the linear motor (27).

Description

technical field [0001] The invention relates to a drive for a press and, in particular, for a bed pad of a stretching press. The press has a push rod drivable in the working direction via the press main drive, which is mounted displaceably on the press frame. The push rod carries the upper tool. At a distance from the push rod, the lower tool is arranged on a press table of the press frame. On the side of the press table facing away from the upper tool there is a table pad with a floating plate, which can be moved and positioned via the cylinder assembly in the working direction of the press. The working cylinder of the working cylinder assembly belongs to the drive, by means of which the floating plate can be moved. Background technique [0002] A drive for a press is known, for example, from DE 2006 058 630 A1. A double-acting working cylinder with two working chambers is arranged there. Depending on the direction of movement, one of the two working chambers is filled...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B30B1/34B30B1/32B21D24/10B21D24/14
CPCB30B1/34B21D24/14B30B1/32
Inventor D.赖施M.米克利施
Owner SCHULER PRESSEN GMBH & CO KG