摘要:
The invention relates to a profile tool for the cutting of workpieces in the form of spiral and hypoid bevel gears, in particular, for motor vehicles. The profile of said tool, engaging with the workpiece, comprises a first profile section (1), in the form of a straight edge on the tool front face; a second profile section (2), in the form of a corner radius, for generating a fillet section; a third profile section (3), in the form of a straight edge or circular cut, for generating a root relief; a fourth profile section (4), in the form of a straight edge or circular cut, for generating the primary flank and a fifth profile section (5), for the generating a tip relief, whereby the profile sections (3, 4, 5) for generating the root relief, the primary flank and the tip relief have a profile optionally radially overlaid thereon, which is an nth order polynomial.
摘要:
Rotary grinding tool for straddle grinding of bevel and hypoid gears, and similar workpieces. The tool comprises two concentric grinding elements (12), (16) projecting in a common direction from one face of the tool. The tool is assembled from basic components (10), (14), (18) which can be easily disassembled. This permits accurate profile correction and surface renewal of the active grinding surfaces (20), (22) without interference with parts of the grinding wheel assembly which might otherwise be in the way of the dressing mechanimsm. In addition, the disassembled components can be used as separate grinding tools.
摘要:
Verfahren zum Fertigbearbeiten eines Kegelrads im Bereich des Zahnkopfes eines Zahns (3), mit den folgenden Schritten: - Bereitstellen des Kegelrads an einer Werkstückspindel einer Bearbeitungsmaschine, - Drehantreiben dieses Kegelrads um eine Werkstück-Rotationsachse der Werkstückspindel, - Bereitstellen eines ersten Bearbeitungswerkzeugs an einer Werkzeugspindel der Bearbeitungsmaschine, - Bearbeiten des Kegelrads mittels des ersten Bearbeitungswerkzeugs, - Bereitstellen eines Schleifwerkzeugs (10) als zweites Bearbeitungswerkzeug an der Werkzeugspindel oder an einer weiteren Werkzeugspindel der Bearbeitungsmaschine, - Drehantreiben dieses Schleifwerkzeugs (10) um eine Werkzeug-Rotationsachse (A2) dieser Werkzeugspindel, wobei das Schleifwerkzeug (10) einen konkaven Bearbeitungsbereich (11) umfasst, der eine Ringform hat und der konzentrisch zu der Werkzeug-Rotationsachse (A2) angeordnet ist, - relatives Zustellen des Schleifwerkzeugs (10) zum Kegelrad, um den konkaven Bearbeitungsbereich (11) des Schleifwerkzeugs (10) mit einer Kante im Bereich des Zahnkopfes in spanabhebende Wirkverbindung zu bringen, wobei diese Kante einen Übergang zwischen einer Zahnflanke (5) des Zahnes (3) und dem Zahnkopf definiert und wobei sich diese Kante entlang der Zahnbreite des Zahnes (3) erstreckt, um an dieser Kante durch schleifende Bearbeitung eine Kopffase (6.1) zu erzeugen.
摘要:
The present invention pertains to the field of gear manufacture, in particular, to a method and machine for forming longitudinally curved tooth surfaces in bevel and hypoid gears. A dish-shaped grinding wheel (26) is rotated about its axis (76) and oscillated about a cradle axis (66) in a timed relationship with a relative reciprocation of a work gear (20) along cradle axis (66). The timed relationship is defined by a power series equation to permit simultaneous form grinding of adjacent tooth sides of one member of a work gear pair to be appropriately mismatched with simultaneously generated adjacent tooth sides of the mating member of the gear pair. A dish-shaped grinding wheel (176) having inner and outer stock removing surfaces (178), (180) for working opposite sides of gear teeth is also used in accordance with special timed motions of the present invention to improve contact characteristics between mating gear teeth.
摘要:
It is described a curvic coupling (400) for rotational coupling, the curvic coupling comprising: plural teeth (402, 403) arranged in a circle and protruding from a circle plane extending in a radial direction (407) and a circumferential direction (409), wherein a side surface (411) of a tooth (403) of the plural teeth is opposite to a side surface (413) of another tooth (402) of the plural teeth, wherein the tooth (403) is adjacent to the other tooth (402) and separated from the other tooth by a separating surface (404), wherein the separating surface comprises a flat surface (405) lying in the circle plane, wherein the separating surface (404) comprises a central protrusion (423) between the side surface (411) of the tooth (403) and the side surface (413) of the other tooth (402), wherein the protrusion (423) protrudes from the circle plane.
摘要:
It is described a curvic coupling (100, 400) for rotational coupling, the curvic coupling comprising: plural teeth (102, 103, 402, 403) arranged in a circle and protruding from a circle plane extending in a radial direction (107, 407) and a circumferential direction (109, 409), wherein a side surface (111, 411) of a tooth (103, 403) of the plural teeth is opposite to a side surface (113, 413) of another tooth (102, 402) of the plural teeth, wherein the tooth (103, 403) is adjacent to the other tooth (102, 402) and separated from the other tooth by a separating surface (104, 404), wherein the separating surface comprises a flat surface (105, 405) lying in the circle plane.
摘要:
A cup-shaped grindstone (18) for grinding an end face of an annular portion (3) of a work (W) to form tooth grooves (4) in the end face includes a grinding portion (21) provided around an outer periphery of a disk portion. Abrasive grains of CBN are electrodeposited on each of first (21a), second (21b) and third (21c) grinding faces of the grinding portion. Cooling-liquid ejecting bores (21d) are provided in a lower end of the first grinding face (21a). To form the tooth grooves (4), the following steps are carried out: a rough-finish processing step cuts the tooth grooves (4) by intermittently feeding the cup-shaped grindstone (18) in a predetermined amount at a time, and a finish processing step of finishing the tooth grooves (4) by retaining the cup-shaped grindstone (18) at a predetermined position after the rough-finish processing step. During both steps, a cooling liquid is supplied from cooling-liquid ejecting bores (21d) defined in the first grinding faces (21a) of the cup-shaped grindstone (18).
摘要:
L'invention se rapporte au domaine de la production d'engrenages, notamment à un procédé et à une machine de taille de surface lisse à courbure longitudinale dans des engrenages biseautés et hypoïdes. Une meule en forme de cuvette (26) tourne autour de son axe (76) et oscille autour d'un axe de berceau (66) en synchronisme avec un mouvement de va-et-vient d'un engrenage à tailler (20) le long de l'axe du berceau (66). La relation synchronisée est définie par une équation de séries de puissance permettant que la rectification de faces adjacentes des dents d'un membre d'une paire d'engrenages présente une discordance d'engrènement appropriée par rapport aux faces adjacentes des dents du membre correspondant de la paire d'engrenages, lesdites faces étant générées en même temps. Une meule en forme de cuvette (176) possédant une surface interne et une surface externe (178, 180) d'élimination de matières, permettant d'usiner les faces opposées des dents d'engrenage, est également utilisée en combinaison avec les déplacements synchronisés ci-décrits pour améliorer les caractéristiques de contact entre les dents d'engrenages appariés.