Orbital grinding aggregate
AssigneeBuetfering Schleiftechnik GmbH
InventorsThomas Bettermann, Hans-Bernd Humpe
Life of this patent
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Abstract
The invention concerns a grinding machine having displaceable grinding means for the processing of workpieces made from wood, wood composite materials, plastics, metals and similar materials. The invention further concerns a method of grinding a workpiece by means of the inventive grinding machine. The grinding aggregate comprises: at least one translational driving means configured to translate the grinding means (6) and at least one eccentric tappet configured to rotatingly move the grinding means (6). The inventive device is characterized in that the grinding aggregate comprises a suctioning device which suctions waste products of the processing, such as chips, through the grinding means. In this way, it is possible to achieve a qualitatively superior grinding result.
Claims20
A grinding aggregate of a grinding machine having a displaceable air and dust permeable grinding element for processing a workpiece comprising:
- at least one translational driving device configured to translate the grinding element;
- at least one eccentric tappet configured to rotatingly move the grinding element;
- a suctioning device facing a surface of the grinding element that is opposite a grinding surface such that the suctioning device suctions waste products through the grinding element prior to entering the suctioning device;
- and
- a grinding element holder adapted to hold and press the grinding element onto the workpiece, said grinding element holder having a plurality of through holes in communication with the suctioning device,
- wherein the grinding element includes a closed, but air and dust permeable surface that is spaced apart from the grinding element holder, thereby forming a relatively uniform negative pressure distribution between the grinding element holder and the grinding element.
A method of grinding a workpiece, the method comprising the steps of:
- introducing the workpiece into a processing region so that the workpiece comes into contact with an air and dust permeable grinding element,
- grinding the workpiece by moving the grinding element with at least two motions independent from each other, namely a translational and a rotational motion,
- suctioning waste products through the grinding element using a suction device, wherein the suction device faces towards a surface of the grinding element opposite to a grinding surface so as to suction the waste products through the grinding element before entering the suction device,
- wherein the grinding element includes a closed, but air and dust permeable surface mounted to a grinding element holder that holds the grinding element onto the workpiece, the grinding element holder including a plurality of through holes in communication with the suction device, and wherein the closed, but air and dust permeable surface of the grinding element is spaced apart from the grinding element holder, thereby forming a relatively uniform negative pressure distribution between the grinding element holder and the grinding element.
Dependencies are inferred from the claim text.