JPH02145257A - Dressing device for grindstone in parallel plane honing machine - Google Patents

Abstract

PURPOSE:To quickly correct the unsymmetrical wear of each grindstone and to flatten it by supporting a disk freely detachably on the upper face of an outer gear in hollow discoid shape and just above the grindstone of the lower part, fitting a rectangular dress plate freely detachably into the rectangular through hole pierced at the center part of this disk and facing the upper and lower dressing faces of this dress plate to the upper and lower rotating grindstones. CONSTITUTION:A hollow discoid grindstone 2' of the upper part is ascended, a disk 3 is arranged on the upper face of a hollow discoid outer gear 1 and yet just above the hollow discoid grindstone 2 of the lower part and the disk 3 is supported by fixing to the upper face of this outer gear 1 by a bolt 7. Then, after fitting a rectangular dressing plate 5 into the rectangular through hole 4 pierced at the center part of this disk 2, the upper rotating grindstone 2' is descended and the upper and lower dress faces 6, 6' of the dress plate 5 are pinched to the upper and lower rotating grindstones 2, 2'. These rotating grindstones 2, 2' and outer gear 2 are rotated by varying the opposite direction or rotating speed in this state, the unsymmetrical wear of the grindstone 2, 2' is quickly corrected and flatly finished.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a grindstone dressing device for a parallel plane honing machine.

``Prior Art'' Conventionally, when dressing a rotary whetstone on a parallel plane honing machine, as shown in Fig. 4, a tool with a protruding diamond blade is pressed against the whetstone surface, and the tool is reciprocated in the direction of arrow a to clean the whetstone surface. It was to complete the process. This method requires a lot of work time and has the problem that the finished surface becomes uneven. Furthermore, as shown in Fig. 5, there is a method in which the grinding wheel surface is finished by reciprocating a rotating grindstone (such as a green carporundum) in the direction of arrow a, but this method also requires a lot of work time and the rotating grindstone is There is a problem that it is difficult to get a flat surface because of wear.

``Problems to be Solved by the Invention'' The object of the present invention is to provide a dressing device that can quickly correct and finish uneven wear of the upper and lower rotating grindstones of a parallel plane honing machine into a flat surface.

"Means for Solving the Problems" In order to achieve the above object, the present invention has hollow disc-shaped rotary grinding wheels arranged vertically and parallel to each other on a machine frame, and a carrier drive gear and a carrier drive gear provided outside the grinding wheels. In a honing machine in which a hollow disc-shaped external gear meshes with a carrier driven gear and the upper and lower surfaces of a workpiece supported inside the core external gear are sharpened using the above-mentioned upper and lower rotating grindstones, it can be freely attached to and detached from the upper surface of the hollow disc-shaped external gear. and a disc supported directly above the lower whetstone, and a rectangular through hole longer than the diameter of the rotary whetstone is bored in the center of the disk, and the disc is removably fitted into the through hole. The grindstone dressing device for a parallel plane honing machine consists of a rectangular dressing plate that fits together, and dressing surfaces corresponding to the upper and lower rotating grindstones are provided on both upper and lower surfaces of the dressing plate.

``Operation'' Therefore, the upper hollow disc-shaped rotating grindstone r is raised, and the 1st disc 3 is placed on the upper surface of the external gear l and directly above the lower rotating grindstone 2. support.

After fitting the rectangular dressing plate 5 into the rectangular through hole 4, the upper rotating whetstone τ is lowered and the dressing surfaces 6 on both the upper and lower surfaces of the dressing plate 5 are connected to the upper and lower rotating whetstones. , τ, and rotate the grindstone 2, τ, and the external gear 1 in opposite directions or at different rotational speeds, the grindstone 2.2
' is a dressing surface 6, which corrects uneven wear and is finished flat.

"Example" A lower hollow disc-shaped rotary grindstone 2 is provided upward on the fixed machine frame 8, an upper hollow disc-shaped rotary grindstone 7 is provided downward on the elevator frame, and these grindstones 2, τ face parallelly. On the outside of the grinding wheel 2, τ, one carrier drive gear 9 and two carrier driven gears G, G are provided on the fixed machine frame 8 side.

In a honing machine, a hollow disc-shaped external gear 1 (carrier) is meshed with a hollow disc-shaped external gear 1 (carrier), and the upper and lower surfaces of a workpiece supported inside the external gear 1 are clamped by the upper and lower rotary grindstones 2.7, and the workpiece is sharpened. A disc 3 is removably supported on the upper surface of the external gear l with bolts 7, and the rotary grindstone 2, r is attached to the center of the disc 3.
A rectangular through hole 4 longer than the diameter of is bored, and a rectangular dress plate 5 is freely fitted into the through hole 4. A dressing surface 6, which corresponds to the upper and lower rotating grindstones 2, r, is provided on both upper and lower surfaces of the dressing plate 5. The above rotating whetstone? , 2' is a general whetstone made of WA (white alundum) or GC (green carporundum), use diamond or borazone for the dressing surface 6 and the edge,
When the grinding wheel 2.2 is a diamond wheel or a borazon wheel, it is preferable to use GC (green carporundum) for the dressing surface 6. The symbol 10 in the figure is the center line of the grinding wheel 2, τ. be.

``Effects'' Since the present invention is constructed as described above, it is possible to quickly correct the uneven wear of the upper and lower rotary grindstones 2, 2' in a parallel plane honing machine and achieve a flat finish.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view showing a grindstone dressing device in a parallel plane honing machine of the present invention, and FIG.
A plan view taken along line A, FIG. 3 is a perspective view of the dressing board,
4 and 5 are front views of the conventional dressing method. l...Hollow disc-shaped external gear, 2,2'...Hollow disc-shaped rotating grindstone, 3...Disc plate, 4...Rectangular through hole, 5...Rectangular dress plate, 6. ``...Dress side.

Claims (1)

[Claims] (1) Hollow disc-shaped rotary grindstones are placed on the machine frame so that they face each other parallel to each other, and a hollow disc-shaped external gear is meshed with a carrier drive gear and a carrier driven gear provided outside the grindstone, and the external gear In a honing machine for sharpening the upper and lower surfaces of a workpiece supported inside the honing machine using the above-mentioned upper and lower rotating grindstones, a disk is detachably supported on the upper surface of the hollow disc-shaped external gear and is supported directly above the lower grindstone; A rectangular through hole longer than the diameter of the rotating grindstone is bored in the center of the disc, and a rectangular dress plate is removably fitted into the through hole. A grindstone dressing device for a parallel plane honing machine, comprising a dressing surface corresponding to the above-mentioned rotating grindstone.