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Method and grinding machine for measuring and producing a target outer contour of a workpiece by means of grinding

A grinding machine and workpiece technology, which is applied to machine tools designed for grinding the rotating surface of workpieces, parts of grinding machine tools, and control of workpiece feed motion, etc. Grinding in a spherical or concave shape, etc.

Active Publication Date: 2016-08-17
ERWIN JUNKER GRINDING TECH
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Problems solved by technology

If the workpiece area to be ground deviates from the cylindrical shape or if said area is to be ground intentionally conically or spherically or concavely, the known measuring systems described do not provide sufficiently precise measuring results for This is the basis for the highest precision grinding results, since the measured values ​​are only detected along the measuring path

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  • Method and grinding machine for measuring and producing a target outer contour of a workpiece by means of grinding
  • Method and grinding machine for measuring and producing a target outer contour of a workpiece by means of grinding
  • Method and grinding machine for measuring and producing a target outer contour of a workpiece by means of grinding

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Embodiment Construction

[0045] In FIG. 1 , a schematic diagram is shown of a structure showing the process of grinding a pin bearing journal 2 by means of a grinding disc 5 capable of carrying out a pendulum movement. Grinding mandrel tailstock 4 carries measuring device 1 on its upper area with respect to grinding disc 5 , said measuring device is able to proceed from the abutment position in which it abuts against a pin to be measured on crankshaft 3 The measuring arm on the bearing journal 2 moves according to the solid line to the retracted position where it has no measuring function, and then moves along the dotted line. The grinding disc 5 with its axis of rotation 13 can be advanced in a controlled manner by means of the CNC-controlled X-axis towards the pin bearing journal to be ground. The axis of rotation 13 of the grinding disc is also called the C-axis and is likewise controlled by the CNC. The elements required for realizing the movement in the X direction as well as the workpiece spind...

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Abstract

The invention relates to a method for a measuring and producing a target outer contour (10), particularly for a pin-bearing journal (2) of a crankshaft (3), as well as a grinding machine for carrying out said method. First, using a measurement device (1), an actual contour is measured on the workpiece by acquiring measurement values for the dimensions and shape of said workpiece in at least two measurement planes that are spaced apart from one another and extend transversely to the longitudinal extension of the workpiece region in question. Said measurement planes are produced by a relative movement of the workpiece region and the measurement device in the Z axis direction, relative to the movement of the grinding disc in the direction of the Z axis thereof. These measurement values for the different measurement planes, which are spaced apart from one another, are transmitted to the CNC control system for the purpose of moving the grinding disc (5) forward, said CNC control system being controlled such that any deviations from the target contour that may be present are corrected, and the target contour of the workpiece region in question is ground adaptively based on the measurement values that were acquired for the particular measurement planes of a workpiece region.

Description

technical field [0001] The invention relates to a method for measuring and producing the outer contour of a workpiece by means of grinding and to a grinding machine for carrying out the above method. Background technique [0002] Directly during machining (that is to say especially also during grinding) with correspondingly adaptive control of the grinding process, online measurement is known for continuous measurement of the workpiece area from the workpiece dimensions measured in the current situation of. In particular when grinding shaft parts (here in particular the bearing points on the crankshaft), for example measuring devices from the company Marposs S.p.A. or JENOPTIK Industrie Metrology GmbH, Germany are used. [0003] A measuring sensor for monitoring linear variables is thus known from the company Marposs S.p.A. from DE 694 13 041 T2. Known measuring devices for measuring the inner diameter and also the outer diameter of bores have a movable sensor in the form ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B49/02B24B49/04B24B5/42
CPCB24B5/42B24B49/02B24B49/04
Inventor 埃尔温·容克尔
Owner ERWIN JUNKER GRINDING TECH
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