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Method and device for finish machining of peripheral surfaces of rotationally symmetrical workpiece sections

A rotationally symmetric, polishing tool technology, used in machine tools, ultra-finishing machines, metal processing equipment, etc. designed for grinding the rotating surface of workpieces, and can solve problems such as inability to obtain surface properties

Active Publication Date: 2017-08-18
NAGEL MASCHEN UND WERKZEUGFAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, grinding processes are often not able to achieve the surface properties that can be achieved by polishing processes

Method used

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  • Method and device for finish machining of peripheral surfaces of rotationally symmetrical workpiece sections
  • Method and device for finish machining of peripheral surfaces of rotationally symmetrical workpiece sections
  • Method and device for finish machining of peripheral surfaces of rotationally symmetrical workpiece sections

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Embodiment Construction

[0025] according to figure 1 and 2 Some associations and concepts that are helpful for understanding the implementation forms of the present invention are explained. here, figure 1 A side view of a typical machining situation is shown in an exemplary embodiment of a method for polishing a peripheral surface 195 of a rotationally symmetrical workpiece section on a workpiece 190 . The workpiece is rotated at a constant rotational speed by means of a rotary device for generating rotational motion of the workpiece about a workpiece rotational axis, or workpiece axis 192 . The workpiece section to be machined can be, for example, a main bearing of a crankshaft or a bearing surface of another shaft, for example a camshaft or a balancing shaft.

[0026] In order to cause material erosion on the workpiece section by means of polishing, the polishing tool 100 is pressed against the peripheral surface to be processed or the workpiece section to be processed with a contact force F a...

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Abstract

In a method for finish machining of peripheral surfaces of rotationally symmetrical workpiece sections on workpieces, a finishing tool (100) comprising a pressing force in a pressing direction (AR) is pressed on the peripheral surface to be machined when a peripheral surface is machined. In order to produce material removal, the workpiece is rotated about a workpiece axis (192) and an oscillating relative movement is produced between the finishing tool and the workpiece In order to produce the oscillating relative movement, the finishing tool is moved back and forth along an oscillation direction with a predeterminable oscillation stroke length and oscillation frequency. A linear movement of the finishing tool running parallel to the workpiece axis is superimposed on the oscillation movement over a linear stroke length. A pivoting movement of the finishing tool about a pivot axis running perpendicular to the workpiece axis and to the pressing direction is superimposed on the linear movement and oscillation movement. A pivot position of the finishing tool is controlled in relation to the axial position of the linear movement. In this way, different axial surface line profiles can be produced in a targeted manner by means of finishing in order, for instance, to obtain a convex shape of the workpiece sections.

Description

technical field [0001] The invention relates to a method for polishing the circumferential surface of a rotationally symmetrical workpiece section and to a device suitable for carrying out the method. Background technique [0002] Polishing, also called super-polishing, is a finishing method of cutting with an indeterminate tool. By polishing, it is possible to process workpiece surfaces of rotationally symmetric or non-rotationally symmetric workpiece sections at workpieces such as crankshafts, camshafts, transmission shafts or other mechanical and working components for producing the desired surface microstructure Mechanical components. During the through-hole polishing, the polishing tool, which is filled with a cutting medium filled with particles, is pressed against the peripheral surface to be processed. In order to generate the cutting speed required for material abrasion, the workpiece is rotated about its workpiece axis. At the same time, an oscillating relative ...

Claims

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Application Information

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IPC IPC(8): B24B19/26B24B33/04B24B35/00B24B5/16
Inventor M.博施
Owner NAGEL MASCHEN UND WERKZEUGFAB
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