LOBED BUFFING WHEEL

Abstract

The invention relates to the machining of materials and can be used for removing flaws from various surfaces, particularly from housings, sheets and cast parts, as well as for removing coatings and rust. A lobed buffing wheel comprises lobes of a buffing material that includes an abrasive material on an elastic substrate, said lobes being fastened to a drive shaft. The lobes of buffing material are created from flat geometric shapes that are bent with the abrasive material facing outward to form a three-dimensional shape, and are fastened to the drive shaft by the bent fastening side. This provides for more efficient buffing of complex-shaped parts by increasing the area of contact between the buffing surfaces and the part.

Claims

1. A lobed buffing wheel containing lobes of a grinding material, the wheel comprising: an abrasive material on an elastic substrate, fixed on one side by a fixing sideon the drive shaft, wherein the lobes of the grinding material are made of flat geometric shapes, bent outward by the abrasive material to form a three-dimensional shape and fixed to the drive shaft by the bent fixing side.

2. The lobed buffing wheel according to claim 1, wherein the lobes of the grinding material are made of flat geometric shapes having an axis of symmetry perpendicular to the fixing side, bent outward by the abrasive material along the axis of symmetry to form a three-dimensional figure and fixed to the drive shaft by the fixing side bent in half.

3. The lobed buffing wheel according to claim 1, wherein the lobes of the grinding material are placed evenly on the drive shaft with partial overlap.

4. The lobed buffing wheel according to claim 1, wherein the lobes of the grinding material are fixed to the drive shaft with washers and nuts.

Description

SHORT DESCRIPTION OF DRAWINGS

[0019] Other distinctive features and advantages of this invention clearly follow from the description given below for illustration and are not restrictive, with links to the attached drawings, in which:

[0020] FIG. 1 depicts the frontal view of the lobed buffing wheel, according to the invention,

[0021] FIG. 2 shows a side view of the lobed buffing wheel, according to the invention, part of the lobes is not shown,

[0022] FIGS. 3 and 4 represent examples of the shape of the lobes, according to the invention,

[0023] FIG. 5 depicts the appearance of the lobed huffing wheel, according to the invention.

[0024] FIGS. 1-5 reference: [0025] 1the lobes of the grinding material [0026] 2screw-drive shaft [0027] 3the first pressure washer [0028] 4support washer [0029] 5second pressure washer [0030] 6nut [0031] 7axis of symmetry

[0032] Invisible lines are represented by dashed lines.

DETAILED DESCRIPTION

[0033] According to FIGS. 1-5, the lobed buffing wheel contains the lobes of grinding material 1, including an abrasive material on an elastic substrate, fixed with one sidethe fixing sideon the drive shaft 2. The lobes of the grinding material 1 are made of flat geometric shapes, bent outward by the abrasive material to form a three-dimensional figure and fixed to the drive shaft 2 by the bent fixing side.

[0034] Predominantly, the lobes of the grinding material 2 are made of flat geometric shapes having an axis of symmetry 7 perpendicular to the fixing side, bent outward by the abrasive material along the axis of symmetry 7 to form a three-dimensional figure and fixed to the drive shaft by the fixing side bent in half.

[0035] The lobes of grinding material 1 may be placed evenly on the drive shaft 2 with partial overlap.

[0036] The lobes of the grinding material 1 may be fixed to the drive shaft 2 with washers and nuts.

DESCRIPTION OF THE EMBODIMENTS

[0037] The lobed buffing wheel works as follows: when the wheel is rotated using the drive shaft 2 (FIG. 1) or the shaft of an angle grinder, or a machine and in contact with the processed surface of any kind and shape, the lobes of the grinding material 1 are elastically deformed by pressing, thereby repeating the shape of the part. At the same time, if planes intersect at an angle from the surface, the wheel is able to grind both planes evenly at once. The wheel is restrained from destruction by the compression of the lobes with washers 3, 4, and 5, the compression force is provided by the threaded screw-drive shaft 2 and nuts 6.

INDUSTRIAL APPLICABILITY

[0038] The proposed lobed buffing wheel can be carried out by a specialist in practice and, when implemented, ensure the implementation of the claimed purpose, which allows us to conclude that the criterion of industrial applicability for the invention meets.

[0039] According to the proposed invention, a prototype of the lobed buffing wheel was made, in which the lobes of the grinding material are evenly distributed with partial overlap and fixed to the drive shaft with washers pressing the symmetrically bent lobes to the support washer.

[0040] Tests of the prototype have shown that it provides the ability to grind parts of complex shapes as efficiently as possible.

[0041] Thus, in this invention, the task has been achievedto improve the efficiency of grinding parts of complex shapes by increasing the area of contact of the grinding surfaces with the part.

[0042] That is, an increase in the quality of surface treatment is achieved while reducing the work input of grinding and reducing the material consumption and labor costs of manufacturing the device.

[0043] Other advantages of this device are the simplicity of the design, the absence of plastic deformation even with a small number of lobes due to their shape and elasticity, the possibility to grind corners and surfaces of complex configuration without changing the geometric parameters of the part, the presence of three surfaces suitable for grinding at once, the absence of shock loads on the drive shaft. That is, with the simplicity of the design and even with a relatively small number of lobes, it becomes possible to grind parts from various materials of complex shapes without changing their geometric parameters effectively. Moreover, the symmetrical arrangement of the lobes of the grinding material with the minimum required pressure of the huffing wheel on the part leads to the absence of shock loads on the drive shaft.