Abstract: A fully symmetric cutter grinding machine with 5-axis includes a grinding machine base and a pillar, sliding rails are vertically arranged on an inside of the pillar, the sliding rails are provided with a grinding wheel head bracket, the grinding wheel head bracket comprises torque motors vertically provided, a lower part of the torque motor is connected to a horizontally provided spindle by means of a bearing of a rotation table, grinding wheels rotating around an axis of the spindle are symmetrically provided at two sides of the spindle, the grinding wheel head bracket further comprises a big rotatable pulley provided at an upper part of the grinding wheel head bracket and driven to rotate by spindle motors, the big pulley is connected to a spindle pulley by a wide synchronous belt.

Abstract: The invention relates to a method for hard fine machining of a pre-manufactured flank (11) of a gear wheel by a machine having at least five axes controlled in coordination and one additional tool axis (WA). According to the invention, a rotation-symmetrical tool (20.1) is driven on the machine side such that it is set into a rotation (RA) about the tool axis (WA). In addition, the axes controlled in coordination are actuated such that a straight-lined section of the surface line of the tool (20.1) is guided tangentially along the flank (11) in a generating movement while the tool (20.1) removes material on the pre-manufactured flank (11) by means of the rotation (R1) about the tool axis (WA). The generating movement follows pre-specified movement vectors (E).

Abstract: A grinding machine with 5-axis for cutters is disclosed, the grinding machine includes a grinding machine base (12) with an circular upper horizontal surface and a pillar (56) provided on one side of the grinding machine base, the pillar is curved with a radian of 180° along a side edge of the base, a groove body (63) on the circular base is enclosed by a curved vertical plate on the another side edge, and the height of vertical plate is lower than that of the pillar.

Abstract: This invention relates to an apparatus for the prototype and small-batch production of gear wheels with a dressing disk. In accordance with the invention, the dressing disk has an asymmetric flank shape and a defined head radius. Furthermore, this invention relates to a method for the prototype and small-batch production of gear wheels by using such dressing disk.

Abstract: A face gear manufacturing operation wherein a set of oversized teeth are formed on a face gear or tapered pinion gear by a gear cutting operation. The oversized teeth are of a predetermined profile. The gear bearing the oversize teeth is then subjected to metallurgical surface hardening operation. At the conclusion of the heat treatment surface hardening operation, the face gear or pinion gear is subjected to a continuous grinding operation wherein a grinding wheel having a worm profile of a predetermined shape is rotated to grind the previously cut teeth to produce a finished tooth profile. The operation is CNC controlled. The gear producing apparatus requires only a slight modification to produce a face gear or a tapered pinion gear by the simple interchange of work heads.

Abstract: The profiling tool (10) has a segment (12) of a worm thread. Its active zone (13) is coated with grains of hard material (16) and is crowned in cylinder sections coaxial to the tool axis (26). During profiling, the grinding spindle (2) and the tool (10) rotate synchronously. By appropriate correction of the coupling ratio by means of a CNC control when moving the tool (10) in axial direction of the grinding worm (2), the grinding worm flank (1) can be dressed with any desired topology. The method makes it possible to profile topologically modified grinding worms (2) at the grinding worm (2) rotational speed used for grinding, which was previously not possible.

Abstract: In forming a helical gear by grinding with a grindstone, the modification accuracy of crowing etc. is improved in such a way that the inequality .beta.>.gamma. c is established wherein .beta. is the helix angle of the helical gear to be ground and .gamma. c is the inclination angle of the grindstone, and the profile of the grindstone is designed to have a vertical angle which is equal to the inclination angle (.gamma. c)of the grindstone.