SU1511097A1 - Made-up abrasive wheel - Google Patents

Abstract

The invention relates to the manufacture of an abrasive tool and simplifies its construction. For this purpose, in the assembled abrasive wheel, solid abrasive-bearing elements 3 P are fastened to the metal housing 1 with a shaped eyelets with grooves of 6.7, adjacent 4.5 of which are fixed to the housing with one pin. In this case, one of the adjacent lugs in the area facing the center of the circle is L-shaped, and the other in the interface with the first one is made radius. The grooves 6.7 of these lugs are angled to each other, and the fastening elements are made in the form of evenly spaced pins 2 installed in the housing parallel to its axis. In addition, on the inner side of the end surfaces of each abrasive-bearing element equidistant grooves 10 are drop-shaped, the centers of symmetry of which are located on parabolic spirals whose pole is aligned with the center of the circle. 4 il.

Description

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The creation of an approach to the manufacture of tools and, in particular, to the manufacture of precast abrasive grinding and polishing wheels.

The aim of the invention is to simplify the design of the circle.

FIG. 1 shows a part of an abrasive wheel with a working element; in fig. 2 is a section A-A in FIG. one; in fig. 3 is a section BB in FIG. one; in fig. 4 is a view of B in FIG. one.

The abrasive wheel contains a body 1, which is made integral with the hub (material: alloy BT-3), on whose fingers 2 which are installed by successively abrasive-carrying links 3, each of which has an arched shape with a U-shaped cross-section in the form of a chain (material of links: steel 45). Each link at both ends is provided with eyelets 4, 5 with slots b, 7, the width of which corresponds to the diameter of fingers 2. The grooves 6 are radially made in the radial direction of the circle body 1, while the lower parts of the eyelet 4 with grooves 6 are L-shaped and terminate with protrusions 8. The grooves 7 are made in a straight-line form in the circumferential direction of the housing 1 and in the lower part of the lug 5 with the grooves 7 terminate with a radius section 9. The width between the inner surfaces of the lugs 4 and the outer surfaces of the lugs 5 is guaranteed The m and assembled first ones are encompassing the second. One of the links 3 is made of locks without shoulders on the lugs 4, and the grooves 6 are made, just as the lugs have a straight line in the circumferential direction (shorter than the grooves 7). On both extruded inner side surfaces of the link 3, drop-shaped notches 10 are made, the axis of symmetry of which coincides with parabolic spirals whose pole (in the polar coordinate system) coincides with the geometric center of the circle and performs the function of cooling air blowers on the working elements.

The peripheral part of the surface 11 of the link 3 is perforated by equally spaced holes 12. The working elements 13 (grinding or polishing) of the required profile shape, elasticity, hardness and grain size of the abrasive are fixed by means of adhesive bonding on the surface 11, based on the need to obtain the required quality characteristics of the microrelief the treated surface of the product. Glue for fixing the working elements should be applied like "instrumental, curing mode: heating and cooling in aero

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dynamic heating cabinet (type PAP-4M), heating temperature 120-160 ° C, depending on the material of the work items, exposure time 2 hours, contact pressure (with overlay - pressure). Fingers 2 (steel 45) are installed in the body 1 of the circle on a tight fit and fixed with screws 14, while one of the fingers is made on a sliding fit with quick-change, i.e. installed with the possibility of quick removal and installation with fixation using a locking ring 15 There is a gap 16 between the ribbed inner (in order to increase stiffness) surface of the links 3 and the periphery of the housing 1.

Abrasive wheel works as follows.

Based on the need to perform the required finishing operation on the housing 1, links 3 are installed with working elements that serve to grind or polish products of various shapes, flat surfaces or cylindrical products of profile shape (with radius sections). The installation of links 3 (with a selected work profile of the work items, with a specific binding hardness and size of the abrasive grains) is performed as follows. The first link is installed with the slots 7 into the eyelet 5 and inserted into the console outlets of the quick-change finger 2, and the radial grooves 6 (in the eyelets 4) are inserted into the console outlets of the next fixed finger 2. The next link 3 of the circumferential eye 4 is installed with the slots 6 into the next fingers 2 turns, then the radial section 9 presses the tabs in the form of the tabs 8 of the previous link, and the eyelet 5 with the grooves 7 is installed on the next finger 2, etc., until the last link 3 in the chain has its end face with the eyelet 5 and grooves 7 does not appear before the quick-change finger 2. Then, pressing with a force of 5-6 And the originally installed link 3 with the hand, the quick-changing finger 2 moves out, the tail part of the locking link is inserted (exposed with an eye 6 with a shortened groove against the hole), is pressed with a force of 5-6 And the quick-change pin 2 is inserted, after which the latter is fixed by a retaining ring 15.

This design of the abrasive wheel simplifies its design, ensures fast operation of the work items, reduces assembly time, and expands its functionality (treatment of products such as rotation bodies with different surfaces, as well as grinding and polishing of medical tools and parts of various configurations).

Claims (1)

Invention Formula Precast abrasive wheel, made in the form of a metal case and abrasive-bearing U-shaped elements fixed to the case by means of fasteners, characterized in that, in order to simplify the design of the circle, the fasteners are made in the form of evenly spaced pins installed in the circumferential direction in the case parallel to its axis, and abrasive bearing elements are made integral with lugs on the sides with pas Threat, and the lugs of the adjacent abrasive-bearing elements are fixed on the body with one pin and one of them is made in an L-shaped form in the section facing the center of the circle, and the other in the interface of the first is made radially angled to each other, and on the inner surface of the lateral sides of each abrasive-dry element there are made radially narrowing notch-shaped recesses, which are arranged at an angle to the axis of symmetry of the specified element.  X f f // v /// Wow ig. g B- 5 FIG. 3