Device for centerless round grinding of round, cylindrical work pieces, having a grinding wheel with an axis of rotation, a regulation wheel for pressing of the work piece against the grinding wheel with an axis of rotation, a workrest blade for putting on the work piece and/or a truing device for the grinding wheel and/or a truing device for the regulation wheel, arranged in such a way on a machine bed, in particular in an assembly surface inclined in the space, that the grinding wheel and the regulation wheel and the workrest blade touch the work piece at the moment of grinding, whereas the work piece is arranged in a grinding gap being formed by the adjoining regulation wheel, grinding wheel and workrest blade, whereas the grinding wheel and/or the regulation wheel and/or the truing device for the grinding wheel and/or the truing device for the regulation wheel respectively are arranged on a hydraulic and/or electromotive driven carriage, which is at least longitudinally adjustable along a longitudinal motion axis.

Device for centerless round grinding of round, cylindrical work pieces, having a grinding wheel with an axis of rotation, a regulation wheel for pressing of the work piece against the grinding wheel with an axis of rotation, a workrest blade for putting on the work piece and/or a truing device for the grinding wheel and/or a truing device for the regulation wheel, arranged in such a way on a machine bed, in particular in an assembly surface inclined in the space, that the grinding wheel and the regulation wheel and the workrest blade touch the work piece at the moment of grinding, whereas the work piece is arranged in a grinding gap being formed by the adjoining regulation wheel, grinding wheel and workrest blade, whereas the grinding wheel and/or the regulation wheel and/or the truing device for the grinding wheel and/or the truing device for the regulation wheel respectively are arranged on a hydraulic and/or electromotive driven carriage, which is at least longitudinally adjustable along a longitudinal motion axis.

A space-saving centerless grinding machine having high operability is obtained by devising the configuration of component units around the basic configuration of the machine. A dressing means for performing a dressing process for a grinding wheel and a regulating wheel comprises a single dressing unit. The dressing unit is located at a lower position between the grinding wheel and the regulating wheel, and thus eliminates the need for right and left dresser spaces for grinding wheels that have most seriously affected the breadthwise dimension of a conventional centerless grinding machine, leading to space saving and a considerable reduction in the breadthwise dimension of the centerless grinding machine.

A space-saving centerless grinding machine having high operability is obtained by devising the configuration of component units around the basic configuration of the machine. A dressing means for performing a dressing process for a grinding wheel and a regulating wheel comprises a single dressing unit. The dressing unit is located at a lower position between the grinding wheel and the regulating wheel, and thus eliminates the need for right and left dresser spaces for grinding wheels that have most seriously affected the breadthwise dimension of a conventional centerless grinding machine, leading to space saving and a considerable reduction in the breadthwise dimension of the centerless grinding machine.

Dressing tool including a main body having a working surface covered with hard-material grains distributed on the main body. Recesses for accommodating the hard-material grains are created in the main body and then filled with an adhesive, the excess adhesive is removed across the main body, and thereafter the hard-material grains are flung onto the main body so that only the grains located in the recesses remain adherent to the working surface of the tool. The hard-material grains can then be bonded to the main body by a physical and/or chemical bond. Thus, a distribution of the grains over the working surface of the tool that can be precisely defined in advance is ensured.

Dressing tool including a main body having a working surface covered with hard-material grains distributed on the main body. Recesses for accommodating the hard-material grains are created in the main body and then filled with an adhesive, the excess adhesive is removed across the main body, and thereafter the hard-material grains are flung onto the main body so that only the grains located in the recesses remain adherent to the working surface of the tool. The hard-material grains can then be bonded to the main body by a physical and/or chemical bond. Thus, a distribution of the grains over the working surface of the tool that can be precisely defined in advance is ensured.

An apparatus for dressing a grinding wheel mounted thereon by creating structures on the surface of a, in particular cylindrical, grinding surface of the grinding wheel The apparatus includes a dressing tool holder arranged for accommodating a dressing tool in a dressing position, a controllable actuator for adjusting the position of the tool holder within the apparatus in at least one direction, a grinding wheel support for rotatably supporting a grinding wheel to be dressed The apparatus further includes a mechanism for monitoring an individual structure, created by the dressing tool on the surface of the grinding wheel, and a mechanism for monitoring a circumferential position and/or the rotary speed of the grinding wheel, and a mechanism for controlling the actuator, adapted to control the actuator as a function of the monitored structure and the monitored circumferential position and/or rotary speed.

A dressing apparatus 1 includes a regulating body 13 which has a ridge portion 12 with a surface having a shape corresponding to the shape of a grinding surface 6 of a grinding wheel 5, the surface being brought into face-to-face contact, over a required length, with the grinding surface 6 of the grinding wheel 5 which rotates; a jetting abrasive grain generating device 11 serving as a device for generating a pressure fluid with abrasive grains mixed therein; and a jetting port 15 for jetting abrasive grain-mixed compressed air, the jetting port 15 serving as a jetting device for jetting the mixed compressed air as a pressure fluid with the abrasive grains mixed therein from the jetting abrasive grain generating device 11 into a space between the grinding surface 6 and the surface of the ridge portion 12 of the regulating body 13 which are brought into face-to-face contact with each other.

A dressing apparatus 1 includes a regulating body 13 which has a ridge portion 12 with a surface having a shape corresponding to the shape of a grinding surface 6 of a grinding wheel 5, the surface being brought into face-to-face contact, over a required length, with the grinding surface 6 of the grinding wheel 5 which rotates; a jetting abrasive grain generating device 11 serving as a device for generating a pressure fluid with abrasive grains mixed therein; and a jetting port 15 for jetting abrasive grain-mixed compressed air, the jetting port 15 serving as a jetting device for jetting the mixed compressed air as a pressure fluid with the abrasive grains mixed therein from the jetting abrasive grain generating device 11 into a space between the grinding surface 6 and the surface of the ridge portion 12 of the regulating body 13 which are brought into face-to-face contact with each other.

The present invention relates to a grinding machine for grinding a surface of a workpiece, having at least one transport device for transporting a workpiece in a transport direction through the grinding machine, and at least one grinding tool (2), wherein the grinding tool (2) has at least one brush with grinding bristles,
wherein the grinding machine has a leveling unit.