DE1427501C - Application of a process for grinding shaped fibers on hob cutters - Google Patents

Description

1 sheet of drawings

Claims (1)

¹ 2 The main patent relates to a method for grinding teeth lying flat at the same time. With the fen the free surfaces on homogeneous form cutters by means of Fig. 1 to 4, the invention is explained. It shows a form grinding wheel and is by grooving F i g. 1 schematically in side view the invention the form grinding wheel in the grinding of hob cutters during grinding. Activity marked non-moving form cutter. 5 Fig. 2 shows the interaction of a partial section In the case of hob cutters, the sharpening is carried out in a similar way to a hob cutter with a form grinding wheel, as with most form cutters on the rake face. FIG. 3 shows, as a partial section, a variant of FIG. 2, Here, the entire flank wear, the F i g. 4 shows schematically the grinding with a is much larger in the circumferential direction than in radia multi-profile grinding wheel. direction to be eliminated. From this it follows that in io F i g. 1 shows a hob cutter 10 as an example, New condition of the milling cutter a circumferential direction of teeth 11 or also rows of teeth on the free relatively long tooth or, in other words, surface 12 sharpened with a shaped grinding wheel 13 a large tooth pitch is required. This will be great. The form grinding wheel is here, as with the Tooth pitch limits the feed rate, grinding according to the main patent, in one of one which depends on the number of teeth on the cutter. 15 number of directions 14, 15, 16 immersed, their This makes the economy of the milling an extreme position through the direction 14 parallel to Operation restricted. Tangent through the outermost cutting point A. The purpose of the invention is to manufacture and determine the open space. The other extreme To improve the sharpening of hobs so that the lying direction 15, that of the tooth back on by increasing the number of cutter teeth a larger 20 attacks the cutter tooth, the tip K of the Feed is allowed. Α should also be determined by an adjacent tooth 11. Between these Relatively large number of possible resharpenings Both extreme values are practically all above that tool costs are kept low. Arch 17 lying directions, for example, too After a not yet admitted to the prior art 16. The inclination of the process belonging to form grinding is the sharpening of the disk is indicated by the projection 18 of the milling cutter axis form and hobbing cutters essentially on the plane of the drawing in FIG.
2 and 3 show as a partial section, by way of example, relatively long, falling in the circumferential direction, two types of interaction of a component of the flank wear, but rather a hob cutter 21,31 with a form grinding wheel 24,33. the much shorter radial component is to be eliminated. 30 According to FIG. 2, the milling cutter base is free at 22. Another purpose of the invention is to design the grinding stitches and the grinding wheel 24 in such a way that only the tooth flank and the tooth tip of each tooth are milled and the grinding process on the free surfaces of the hobbing simplify. 23 can be processed with the grinding wheel 24. At the The object on which the invention is based will be the embodiment according to FIG. By using the grinding process of FIG. 35, the flanks of the tooth gaps 32 were measured at the same time Main patent on hobs solved. with the tooth base and the tooth head with a For hob cutters, the invention has also ground the appropriately shaped grinding wheel 33 The advantage of increasing the number of teeth. From FIGS. 2 and 3 more are readily available lent better cutting results can be achieved. Execution options readable. Apparatus for Carrying Out the Invention 40 FIG. 4 shows the machining of a hob cutter can be designed so that a form grinding wheel 41 with a multi-profile grinding wheel 42. Here in the hobs or vice versa in a Rieh- a sharpening time can be achieved that corresponds to the sharpening device is immersed that does not have a feed rate that is at least equal to that of the rake face, or even Grinding wheel results in relation to the free surface, which is even shorter because of the smaller stroke. Axis of the grinding wheel corresponding to the 45 P t t h supply angle of the cutter ^ruc relative to the cutter axis ^{A s to the} P · is set at an angle. This device corresponds to the application of the method for grinding the So about the device according to the main patent, free surface on homogeneous form cutters by means of however, means must be provided to cut the stone of a form grinding wheel by grooving to be able to take into account the angle of the milling cutter. 50 shape grinding wheel in the It is particularly efficient to use a non-moving milling cutter according to the patent with a multi-profile process Grinding wheel several or all axially next to each other - in the 910 for the grinding of hob cutters.