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Method for pressing a workpiece with a predetermined pressing force

A technology of extrusion force and workpiece, applied in the direction of presses, stamping machines, manufacturing tools, etc., to achieve the effect of shortening extrusion time and rapid feed

Active Publication Date: 2019-01-11
STIWA HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The methods known from the prior art have the disadvantage that in order to achieve the required pressing force while observing the required tolerance range, the pressing speed must be selected correspondingly low in order to prevent the individual components of the drive train from The dynamic effect of twisting compression force due to the inertia of

Method used

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  • Method for pressing a workpiece with a predetermined pressing force
  • Method for pressing a workpiece with a predetermined pressing force
  • Method for pressing a workpiece with a predetermined pressing force

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Embodiment Construction

[0051] It should first be understood that the same reference symbols or the same component designations are used for the same parts in the different embodiments described, wherein the disclosure content contained in the entire description can be transferred to the same drawing according to the meaning Mark or the same part of the same member reference number. The positional specifications selected in the description, such as top, bottom, sideways, etc., refer to the directly described and illustrated figure and can be transferred to the new position in a meaningful way when the position is changed.

[0052] figure 1 A schematic diagram of a processing press 1 is shown. The machining press 1 comprises an electric motor 2 and a forming tool 3 coupled to the electric motor 2 . The forming tool 3 can act on a workpiece 4 in order to be able to deform it. Such deformation can be, for example, stamping. Furthermore, it is also conceivable that the workpiece 4 is bent, for exampl...

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Abstract

The invention relates to a method for pressing a workpiece (4) with a predetermined pressing force using a forming tool (3) connected via a spindle drive (6) to an electric motor (2), wherein the spindle drive (6) converts the rotational movement of a drive shaft (8) of the electric motor (2) into a translatory movement of the forming tool (3). The method comprises the following method steps: - accelerating the electric motor (2) in the screwing direction to a predetermined maximum rotational speed; - operating the electric motor (2) at maximum rotational speed until the drive shaft (8) of theelectric motor (2) has completed a predetermined number of rotations; - reducing the rotational speed of the electric motor (2) to a predetermined reduced rotational speed; - operating the electric motor (2) at a reduced rotational speed until a pressing force increase exceeding a predetermined threshold value is detected by a measuring unit (12) downstream of the electric motor (2); - forming the workpiece (4) while continuously detecting the pressing force by means of the measuring unit (12) until the predetermined pressing force is reached.

Description

technical field [0001] The invention relates to a method for pressing a workpiece with a predetermined pressing force. Background technique [0002] Various methods for pressing workpieces are known from the prior art. The methods known from the prior art relate in particular to production plants in which workpieces are to be pressed with a predetermined pressing force. In this case, the workpiece must be pressed with a predetermined pressing force, the actual value of the pressing force having only a small tolerance range. [0003] The methods known from the prior art have the disadvantage that in order to achieve the required pressing force while observing the required tolerance range, the pressing speed must be selected correspondingly low in order to prevent the individual components of the drive train from The dynamic effect of twisting compression force due to inertia. Contents of the invention [0004] The object of the present invention is to overcome the disadv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B30B1/18B30B15/14
CPCB30B15/148B30B1/181B30B15/14B30B15/186B30B15/26
Inventor M·布伦纳T·格吕克A·戈吕恩德尔A·库吉J·麦因加斯纳M·保迪茨
Owner STIWA HLDG
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