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Grinding center and method for simultaneous grinding of a plurality of bearings and end-side surfaces of crankshafts

A crankshaft and end face technology, which is applied in the field of grinding centers, can solve the problems of large space control device consumption, etc., and achieve the effect of reducing space occupation

Active Publication Date: 2010-12-15
ERWIN JUNKER MASCHNINENFAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The design of a grinding center with two separate cross slides requires a great deal of space as well as an enormous outlay on components and associated controls, even for the machining of only two bearings.

Method used

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  • Grinding center and method for simultaneous grinding of a plurality of bearings and end-side surfaces of crankshafts
  • Grinding center and method for simultaneous grinding of a plurality of bearings and end-side surfaces of crankshafts
  • Grinding center and method for simultaneous grinding of a plurality of bearings and end-side surfaces of crankshafts

Examples

Experimental program
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Embodiment Construction

[0039] exist figure 1 A plan view of a grinding center designed as a grinding unit 1 is shown in . The grinding unit has a common machine tool 2 on which two stations 3 , 4 are arranged for machining the crankshaft 22 by grinding. The stations 3 , 4 have a common grinding table 5 on which a holding device and a drive device for the crankshaft 22 are located. The grinding unit usually also has a hood and a loading and unloading device for feeding in and removing the crankshaft 22 and transporting it from the first station 3 to the second station 4 . However, the loading and unloading device is figure 1 Not shown, nor are the CNC control with input keys and the hydraulic and / or pneumatic supply.

[0040] exist figure 2 The first station 3 of the grinding unit 1 shown separately in FIG. 2 is used for grinding the main bearing 23 of the crankshaft 22 . For the sake of illustration, the most important functional parts of the first station 3 are shown in the auxiliary figure "...

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Abstract

The invention relates to a grinding center for the simultaneous grinding of a plurality of main and rod bearings and / or central and end-side sections of crankshafts (22). Two main bearing grinding spindles (14, 15), of which the first is movable only in the Z-direction and the second only insignificantly movable in the X-direction, are mounted on a common rod bearing-compound slide (11). In the final phase of grinding, a correction of variations in size between the two processed rod bearings occurs via a separated drive of the second rod bearing-grinding spindle (15) in accordance with a sizeor roundness correction. The variations are detected by measuring devices. An inclined profiled grinding wheel is provided for the grinding of the end sections.

Description

technical field [0001] The invention relates to a grinding center for grinding crankshafts having main bearings and connecting rod bearings, wherein a plurality of main bearings and connecting rod bearings as well as end faces, in particular end faces of flanges, are ground essentially simultaneously. Background technique [0002] These grinding centers are used for rough and / or finish grinding of crankshafts in high piece quantities. Here, crankshafts are generally used in four-cylinder single-row engines in the automotive industry, wherein every two connecting rod bearings are arranged at the same angular position with respect to the longitudinal axis of the crankshaft. In order to increase productivity, the two connecting rod bearings are ground simultaneously (simultaneously). Such operating methods are described, for example, in EP1044764A2 and EP1088621B1. [0003] Simultaneous grinding of several bearings for the main bearing of a crankshaft is already known, for ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B5/42B24B47/22B24B51/00
CPCB24B51/00B24B47/22B24B5/42
Inventor 埃尔温·容克尔
Owner ERWIN JUNKER MASCHNINENFAB
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