RU2095222C1 - Method and abrasive disk for machining sides of plates - Google Patents

Abstract

FIELD: mechanical engineering. SUBSTANCE: device comprises base 1, rotatable table 2 with a device for locking plates that is mounted on the base, and lever 3 with drive 4 whose shaft has abrasive grinding disk 5. Grinding disk 5 is made up as housing 6 and disks 7,8, and 9 which form a shaped surface together with side portions 10 and 11 and bottom portion 12 for machining the sides of plates. The side portions of the shaped surface posses greater abrasive capability and hardness whereas the bottom portion posses lesser ones. The shaped portions may be adjusted in width. The disks may be secured to the housing by any method known, e.g. by a heat adhesion glue. Plate 13 to be machined is mounted on rotatable table 2 and set in rotation. Abrasive disk 5 is brought to the side of the plate and also set in rotation. EFFECT: enhanced efficiency. 2 cl, 2 dwg

Description

 The invention relates to methods and devices for processing the faces of brittle plates, for example, made of glass, having straight and curved sides.

 A known method of processing plates with straight and rounded sides by chamfering and processing their lateral surface on a rotating table using a rotating disk abrasive tool / 1 /.

 Also known is an abrasive grinding wheel with a profile concave surface for processing mainly glass plates with side sections of the profile surface for processing chamfers and a bottom section for processing the side surfaces of the plates / 2 /.

 The known method and device allows you to process plates with a complex profile having straight and rounded sides, however, due to different peripheral speeds when processing rectilinear and rounded surfaces of the plates, uneven material removal occurs, which negatively affects the quality of processing and the preservation of the necessary surface configuration, in straightforward features.

 When processing glasses of different thicknesses, it is required for each plate thickness to use the appropriate standard size of the circle.

 The technical result consists in improving the quality of processing plates, as well as in reducing the number of tool sizes for plates of different thicknesses, which is achieved by the fact that in the method of processing plates with straight and rounded by chamfering and processing of their side surface on a rotating table with a rotating disk abrasive tool, a disk tool for processing them is performed with areas of various abrasive abilities, and the chamfers of the plates form areas of the tool with a higher, and its side surface portions of the tool with lower abrasive properties.

 An abrasive grinding wheel with a concave profile surface for processing mainly glass plate faces with side sections of the profile surface for chamfering and a bottom section for processing the side surfaces of the plates, has side sections of the profile surface with a larger and bottom section with a lower abrasive ability and hardness. The sections of the profile surface of the abrasive grinding wheel are made detachably adjustable in width.

 In FIG. 1 shows a device for processing plates in which the proposed method is carried out; in FIG. 2 abrasive grinding wheel.

 A device for processing the faces of the plates consists of a base 1, on which there is a rotating table 2 with a device for fixing the plates (not shown, it can be made, for example, in the form of a suction cup), a lever 3 with a drive 4, on the shaft of which an abrasive grinding wheel 5 is fixed .

 The grinding wheel 5 (figure 2) is made in the form of a housing 6 and disks 7, 8, 9, which form a profile surface with side sections 10, 11 and a bottom section 12 for processing the side surfaces of the plates.

 The lateral sections of the profile surface are made with a larger, and the bottom section with less abrasive abilities and hardness. The sections of the profile surface are made removably adjustable in width. Disks can be mounted on the housing in any known manner, for example by means of hot melt adhesive.

 The device operates as follows.

 On the rotating table 2 set the workable plate 13 and bring it into rotation. The abrasive wheel 5 is brought to the surface of the plate and is also rotated by the engine 4.

 Due to the fact that the chamfers of the plate are treated with tool sections with a higher and its side surfaces with sections of a tool with lower abrasive abilities, there is a faster removal of material from the chamfers of the plate and at the same time a more uniform removal of material from its side surface occurs.

 So, the disks 7, 8, 9 can be made removably adjustable in width (that is, you can replace some disks with others with different thicknesses), you can process plates of different thicknesses.

Thus, the proposed technical solution will allow:
improve the quality of processing plates;
reduce plate processing costs;
reduce the number of tool sizes for plates of different thicknesses and thereby reduce the cost of manufacturing the tool.

Claims (3)

 1. A method of processing the faces of plates with straight and rounded sides, in which the lateral surfaces of the plates are brought into contact with a concave peripheral surface of a disk abrasive wheel formed by the side and associated bottom sections of the wheel, characterized in that they take an abrasive wheel, the side sections of which have abrasive ability and hardness are higher than the bottom section, and the edges of the plates are brought into contact with the side sections of the circle, and its bottom section with the sides of the plates.  2. An abrasive wheel for processing the faces of the plates, made in the form of a disk with a concave peripheral surface formed by the side and conjugate bottom sections, characterized in that the side sections have higher abrasive ability and hardness than the bottom section of the circle.  3. The circle according to claim 2, characterized in that the circle is made in the form of removable disk elements, assembled to form the side and bottom sections.

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