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Continuous through-feed grinding machine for machining a workpiece surface and method

a technology of through-feed grinding machine and workpiece surface, which is applied in the direction of grinding machine components, grinding machines, abrasives, etc., can solve the problems of uneven wear of various grinding tools, uneven surface of workpieces, and different grinding results and wear of grinding tools, so as to increase the speed of workpiece transportation, increase the effect of throughput and speed

Inactive Publication Date: 2005-06-16
JAKOB LOWER INH VON SCHUMANN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0011] In view thereof, it is the object of the present invention to provide a continuous through-feed grinding machine of the type mentioned herein above that permits to achieve even machining of the workpiece surface and even wear of the grinding tools.

Problems solved by technology

Actually, the surface of the workpiece is not machined uniformly thereby.
Accordingly, there are regions of the workpiece surface that are mainly contacted at a certain angle or that are machined at a high or a low relative velocity, which leads to different grinding results and to different wear of the grinding tool.
Additionally, this causes the various grinding tools to wear unevenly if the workpiece to be machined does not extend over the entire machining width but only covers a portion of said width.
Such unevenly worn grinding tools however compromise the grinding results of subsequent workpiece surfaces since different grinding results within the workpiece are obtained due to differing wear.

Method used

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  • Continuous through-feed grinding machine for machining a workpiece surface and method
  • Continuous through-feed grinding machine for machining a workpiece surface and method
  • Continuous through-feed grinding machine for machining a workpiece surface and method

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third embodiment

[0050] The FIGS. 5 and 6 illustrate a continuous through-feed grinding machine of the invention in which the grinding tools retained on the grinding station 314 are configured to be roll grinders 323. Said roll grinders 323 are driven by an electric motor 348 and rotate about their rotation axis 354. In the illustration according to FIG. 5, the roll grinders 354 are disposed in the infeed direction, meaning the rotation axis 354 is oriented at right angles to the direction of movement of the roll grinder 323 (revolving direction). As a result, the rotation axis 354 is coaxial with the direction of transport of the workpieces 312.

[0051] The electric motor 348 is retained in a frame 356 to which the roll grinder 323 is also secured, said roll grinder 323 being driven by the electric motor 348 via a V-belt 358. The frame 356 is retained on the carriage 326 by a screw 360, said carriage being guided on the guide rail 330. A peripheral power supply line 350 through which the necessary po...

fourth embodiment

[0054]FIG. 10 illustrates a fourth embodiment that only differs from the embodiment shown in FIG. 9 by the fact that here one group of grinding tools comprises one disc grinder 422 in addition to the three differently mounted roll grinders 423.

[0055] As a matter of course, other combinations and arrangements of the grinding tools are possible even if these are not explicitly represented herein.

[0056] The grinding stations 114, 214, 314 illustrated herein can be complemented by further grinding stations 114, 214, 314 and at need by roll grinders for example that extend over the entire width of the workpiece. Also, there may be provided spindles with rotating cylinder bodies having abrasive lamellae, said spindles being disposed across the infeed direction or belt grinding units disposed across or along the infeed direction or cylinder bodies across which an abrasive paper is stretched and that are disposed across the infeed direction.

[0057] In another embodiment that has not been i...

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Abstract

The subject matter of the invention is a continuous through-feed grinding machine for machining a workpiece surface, said grinding machine having a grinding station with at least two rotating grinding tools, more specifically disc or roll grinders, with the grinding tools being continuously advanced along an endless path. The objective of providing a continuous through-feed grinding machine allowing for even machining of the workpiece surface with even wear of the grinding tools is accomplished by providing the endless path (128) with two work segments (140, 142) alternating with two transfer segments (144, 146) or by continuously advancing grinding tools that are moved along an endless path configured as an oval or elliptical shape.

Description

CROSS-REFERENCE TO RELATED APPLICATION [0001] This application claims Priority from German Application No. DE 203 19 366.0 filed on 13, Dec. 2003. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a continuous through-feed grinding machine and method for machining a workpiece surface, said grinding machine having a grinding station with at least two rotating grinding tools, more specifically disc grinders or rolls. [0004] The manufacturing of pieces of furniture, room doors or the like requires surface grinding of the various components after machining in order to remove possible burs and / or to smooth the surface and to eliminate therefrom fine wood fibers. Only if the surface is thus made smooth can it be varnished properly. This applies in equivalent fashion to pre-varnished workpieces. Further, continuous through-feed grinding machines are utilized for deburring metal workpieces. [0005] Especially if actually plane surfaces compr...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B24B7/06B24B7/28B24B27/00B24B29/00B24B41/047B24D13/04
CPCB24B7/06B24B7/28B24D13/04B24B29/005B24B41/047B24B27/0076
Inventor VON SCHUMANN, FRIEDRICH
Owner JAKOB LOWER INH VON SCHUMANN
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