SU1444136A1 - Device for fastenitng abrasive grinding wheel - Google Patents

Abstract

The invention relates to a machine tool industry, in particular to the processing of materials using an abrasive tool, and is intended to secure abrasive tools to the spindle of a grinding machine. The purpose of the invention is the expansion of technological capabilities for. account provided

Description

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The fixing of the circle is on a ceramic link with their self-centering on the flanges without creating additional stresses on the surface of the mounting bore. For this, the abrasive wheel 12 is set by a mounting hole on the conical surface 6 of the centering ring 5 and the cylindrical surface of the flange of the movable flange 7. When the ends of the flanges 1 and 7 come together, the pushers 15 start the contact with the abrasive wheel 12, which begins to change

The invention relates to a mill made in particular to the processing of materials using an abrasive 1 tool. and is intended to hold the abrasive wheel on the grinding machine spindle.

The purpose of the invention is the expansion of technological capabilities.

Fig, 1 shows the device, a general view; FIG. 2 is a sectional view of FIG. 1.

The device consists of a fixed flange 1 with a conc. Hole 2 for installation on the machine spindle, a cylindrical surface 3 and a groove 4, made in the transition zone of the cylindrical surface to the face surface. 3 centering rings are mounted on the cylindrical surface .5 s The outer outer surface 6 and the movable flange 7. The end faces 8 and 9 of the flanges i and 7 are installed and clamped with the nut 10 through the 5 5 1 abrasive wheel 12 ”

In mirrors x 13 and 14 of the centering ring 5 and the flange 7. IS pushers are installed, 4a are supplied by springs 16 to the end surface 17 of the groove 4 and the face of the grinding wheel 12, screws IS, used to adjust the force of the pushers to fit. Tortsov's top surface 9. prices for a trire oi:, ring of 5 rings in contact with face curvature 20 flange of the movable flange 7,

axially, centered on the conical surface 6. After the gap between the conical surface 6 and the surface of the grinding wheel bore is selected, the circle will move along the axis in the same direction together with the centering ring 5. It is effected by friction force on the end surfaces of the flanges 1 and 7 created by the tightening force of the nut 10. 2 Il.

The grinding wheel is fastened in the device as follows.

Abrasive wheel 12 is installed with a mounting hole on the conical surface 6 of the centering ring 5 and the cylindrical surface of the movable flange 7j, the size of which provides a guaranteed gap with the surface of the child hole. From the action of the np xai S6, the pushers 15 protrude as far as possible from the holes 13 and 14,

P zk nut rotation 10 end flanges

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As a result, the pushers 15 of the end face of the sub-flange 7 come into contact with the face of the circle. Circle 12 begins peremegtsk in the axial direction, centered on the conical surface 6 and thereafter the gap between the conical surface 6 and the surface of the landing shaft the circle is selected, the circle is moved by the tg; along the axis in the same direction together with the centering; ring 5 (spring stiffness from the holes of the movable flange is chosen to be of greater rigidity, pin B of the holes of the base ring),

 After the grinding wheel approaches the end surface 8 of the stationary flange, its final centering takes place relative to the axis of the flange; : foot flange, When distance314

During the slowest rotation of the nut 10, the wheel is increasingly pressed by the pushers mounted on the end surface of the movable flange against the end surface of the fixed flange, fixing its position. When the position of the centered circle is reliably fixed, the end surface 20 of the collar comes into contact with the end surface 19 of the centering ring 5 and begins to move the ring 5 in the axial direction of the distance to the conical surface 6 from the surface of the bore,

The final fastening of the circle is carried out by the friction force on the end surfaces of the flanges created by the tightening force of the nut 10,

At the same time, no additional stresses are created on the surface of the mounting bore, which fully complies with the requirements for attaching the abrasive tool, according to which the flanges

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should not create internal stresses in the grinding wheel.

Thus, the proposed device for attaching abrasive wheels allows for self-centering of circles on any ties, including ceramic.

Claims (1)

Invention Formula . A device for mounting an abrasive disc containing movable and non-movable flanges, a spring-loaded centering element with an outer conical surface mounted for axial movement in a groove made on a fixed flange, characterized in that, in order to expand technological capabilities, the end surface of the movable flange is designed to contact with the face surface of the grinding wheel, provided with elastic elements, and the centering element is installed with the possibility of interlocking odeystvi with the end face of the movable flange. lli -. - / bs -: ... F A -.-h / / (rigging