SU1286391A1 - Method of abrasion working - Google Patents

Description

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fie. one

112

The invention relates to abrasive machining tools on a flexible

basis.

The purpose of the invention is to increase grinding performance by increasing the cutting ability of the tool.

1, a grinding process; figure 2 - view And figure 1.

The abrasive belt 1 is made of a metal mesh 2, is driven to rotate by the rollers 3 and shakes the contact element 4 to the workpiece 5.

Abrasive grains 7, mixed with oil, which fall into the cells of the metal grid, are selected from the bunker 6 to the treatment area, selected in such a way that the dimensions of the cell correspond to the sizes of the abrasive grains.

The sanding belt 1 is clamped by an endless belt base 8 moved by the rollers 9. Processing is carried out from the condition that the belt speeds are equal in magnitude and direction. Abrasive grains 7, trapped in the grid cells 2 in the treatment area, are not able to fall out, since they are held by the grid cells, the flexible base 8 and the workpiece 5.

Upon leaving the treatment area, the abrasive is removed from the mesh cells and can be reused.

12

Processing of one portion of the abrasive grains may continue until the abrasive grains wear to a height equal to the thickness of the mesh. A worn abrasive can be reused if you use a mesh with smaller mesh sizes and a thickness. Example. In order to obtain comparative data, the processing according to the proposed method was carried out with grain 23A16 using a mesh with a cell size of 0.18x0.18 mm and belt grinding with a final tape LSVT 23A16. 50 mm wide with the following processing modes:

Belt speed, mm / s 0.17

 Product rotation speed, m / s1.05

Specific pressure, mPa 0,3 Longitudinal flow 0-, 1 from

tape width per 1 turn of the product

Samples of roller steel Grades 9X2 with a hardness of 50 mm in diameter and 150 mm long were used as the workpiece.

Comparative analysis showed that the proposed grinding method allows to increase metal removal, reduce abrasive wear, and increase productivity. In addition, the temperature in the grinding zone is reduced.

Buff / I

Claims (1)

METHOD OF ABRASIVE TREATMENT, in which the grinding belt and the workpiece are informed of the rotational motion and relative feed motion, which is different in that, in order to increase the grinding performance, a metal mesh is taken as the basis of the grinding belt and the abrasive is fed into the mesh cells in the processing zone, in addition, they take an endless tape base and press the sanding belt towards the product with it, and the sanding belt and tape base are rotated in the same direction with equal speeds.