JPH0639054B2 - Grinding wheel dressing device for parallel plane honing grinder and vertical double-side grinder - Google Patents

Description

The present invention relates to a grindstone dressing device for a parallel surface honing grinder.

[Prior Art] Conventionally, in the dressing of a rotary grindstone in a parallel surface honing grinder, a tool having a diamond blade protruding as shown in Fig. 4 is pressed against the grindstone surface and reciprocated in the direction of arrow a to reciprocate the grindstone. It was to finish the surface. According to this method, much work time is required, and there is a problem that the finished surface becomes uneven. Also, as shown in FIG. 5, a method of reciprocating a rotating grindstone (green carborundum or the like) in the direction of arrow a to finish the grindstone surface is used, but this method also requires a lot of working time, There is a problem that it is difficult to form a flat surface due to abrasion. More traditionally,
There are some dressing rotary whetstones using multiple dressing members, but due to differences in dressing surface height due to the attachment of each dressing member, or uneven dressing surfaces for each dressing member, etc. There is also a problem that it is difficult to put out.

"Problems to be Solved by the Invention" The present invention has an object to obtain a dressing device capable of quickly correcting the uneven wear of upper and lower rotary grindstones in a parallel surface honing grinder to a flat surface. .

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention provides a machine frame with hollow disk-shaped rotary grindstones vertically facing each other in parallel with each other, and a carrier driving gear provided outside the grindstones. A hollow disk-shaped external gear is meshed with a carrier driven gear to enable the external gear to rotate concentrically with the grindstone, and the upper and lower surfaces of the work supported inside the external gear are ground by the upper and lower rotary grindstones. The honing grinder and the vertical double-sided grinder, which are detachably supported on the upper surface of the hollow disk-shaped external gear so that the center thereof coincides with the rotation center axis of the external gear, and directly above the lower grindstone. And a rectangular through hole longer than the diameter of the rotary grindstone is formed in the center of the disk, and a rectangular dress plate detachably fitted in the through hole is provided. The above-mentioned rotation up and down on both upper and lower sides of the dress plate Whetstone dressing device in a parallel plane honing grinder and a vertical double-sided grinder in which a dressing surface facing a stone is provided, and the disc is configured to be rotatable around the center of the disc by rotation of the external gear. Composed by.

"Operation" Therefore, the upper hollow disk-shaped rotary grindstone 2'is raised so that the disk 3 is placed on the upper surface of the external gear 1 and the lower rotary grindstone 2 '.
And is supported on the upper surface of the external gear 1 by bolts 7. Then, after fitting the rectangular dress plate 5 in the rectangular through hole 4, the rotary grindstone 2 ′ on the upper part is lowered so that the dress surfaces 6, 6 ′ on both upper and lower sides of the dress plate 5 are the upper and lower rotary grindstones 2, When the grinding stones 2 and 2'and the external gear 1 are rotated in opposite directions or different rotational speeds,
The whetstones 2 and 2'are flattened by the dressing surfaces 6 and 6'being corrected for uneven wear.

"Embodiment" The lower hollow disk-shaped rotary grindstone 2 is provided on the stationary machine frame 8 in the upward direction, and the upper hollow disk-shaped rotary grindstone 2'is provided on the elevator frame 8'downward. Face 2'in parallel.
One carrier driving gear 9 and two carrier driven gears 9 ', 9'are provided on the stationary machine frame 8 outside the grindstones 2, 2', and these gears 9, 9 ', 9'are hollow. Disk type external gear 1
(Carrier) is meshed, and the upper and lower surfaces of the work supported inside the external gear 1 are clamped by the upper and lower rotary grindstones 2 and 2 ',
In a honing grinder that sharpens this, a disk 3 is detachably supported on the upper surface of the external gear 1 by a bolt 7, and a rectangle longer than the diameter of the rotary grindstones 2 and 2'is provided in the center of the disk 3. A through hole 4 is formed, and a rectangular dress plate 5 is formed in the through hole 4.
Removably fit. Then, dressing surfaces 6, 6'corresponding to the upper and lower rotary grindstones 2, 2'are provided on the upper and lower surfaces of the dress plate 5, respectively. When the rotary grindstones 2 and 2'are general grindstones made of WA (white alundum) or GC (green carborundum), diamond or borazon is used for the dressing surfaces 6 and 6 ', and the rotary grindstone 2, When 2'is a diamond wheel or a borazon wheel, it is preferable to use GC (green carborundum) for the dressing surfaces 6, 6 '. The reference numeral 10 in the drawing is the center line of the rotary grindstones 2 and 2 '.

[Effect] Since the present invention is configured as described above, the upper and lower whetstones can be dressed by the dressing surfaces on both upper and lower end portions of the rectangular dress plate facing the upper and lower rotary whetstone surfaces. With the dress plate of, the upper and lower rotating grindstones can be quickly reduced and flattened.

Further, since the dressing surfaces formed on both end portions of the single rectangular dress plate can dress the upper and lower grindstone surfaces, it is not necessary to use a plurality of dressing members, and a deviation or the like caused by the attachment of the plurality of dressing members can be achieved. Without a simple structure, a flat surface can be accurately formed.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing a grindstone dressing device in a parallel plane honing grinder and a vertical double-sided grinder of the present invention, FIG. 2 is a plan view taken along line AA of FIG. 1, and FIG. 3 is a dressing plate. A perspective view, FIGS. 4 and 5 are front views of a conventional dressing method. 1 ... Hollow disk type external gear, 2, 2 '... Hollow disk type rotating grindstone, 3 ... Disk, 4 ... Rectangular through hole, 5 ... Rectangular dress plate, 6, 6' ... Dress surface.

Claims (1)

[Claims] 1. A hollow disk-shaped rotary grindstone is vertically opposed to a machine frame and parallel to each other, and a hollow disk-shaped external gear is meshed with a carrier drive gear and a carrier driven gear provided outside the grindstone. A honing grinder and a vertical double-sided grinder that make the external gear rotatable concentrically with the grindstone, and the upper and lower surfaces of the work supported inside the external gear are sharpened by the upper and lower rotary grindstones, which are hollow. A disc that is detachably supported on the upper surface of the disc-shaped external gear so that its center coincides with the rotation center axis of the external gear and that is supported immediately above the grindstone below, and in the center of the disc. Is a rectangular through hole that is longer than the diameter of the rotary grindstone, and a rectangular dress plate that is detachably fitted in the through hole is provided. Providing facing dressing surfaces, the disk is attached to the external gear. Rolling the circular plate around the grinding wheel dressing device in formed by capable of rotating structure I than parallel flat honing grinder and Vertical sided grinding machine of.