SU1486822A1 - Method of balancing grinding wheels - Google Patents

Description

The invention relates to mechanical engineering and can be used for balancing diamond grinding wheels. The aim of the invention is to improve the accuracy of balancing by reducing the technological imbalances. Circle 1 is mounted on the spindle 2 of the grinding machine, the body 3 of the balancing device containing the corrective mass 4-7 is attached to the spindle, the circle is rotated by. operating frequency and balance it by turning the corrective mass. The angles of their rotation and the known imbalances reveal the imbalance of the grinding wheel 1, correct it on the spindle

2 regular corrective masses 17 and detach the body from the spindle

3 balancing devices, 2 Il.

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The invention relates to mechanical engineering and can be used for balancing grinding wheels, the imbalances in operation vary by no more than 3-5% (for example, diamond grinding wheels).

The purpose of the invention is to improve the accuracy of balancing by reducing technological imbalances due to the combination of its installation and balancing bases.

FIG. 1 shows a device for implementing the proposed method; in fig. 2 shows section A-A in FIG. one .

A device for implementing the proposed method contains a grinding wheel 1 mounted on the spindle 2 of the grinding machine. A spindle 2 is made of a nonmagnetic material cylindrical body 3 of a balancing device, in which two pairs of kinematically connected control correction masses 4 and 5 and 6 and 7 are placed, as well as electric motors 8 'and 9 for rotation - each pair by bevel gears. The current collector 12 is located coaxially with the housing 3. The housing 3 covers a cylindrical shell • 13 of transparent material with a degree scale printed on its surface. On the outer surface of the housing 3 (in the plane of location of each control corrective mass) there are annular grooves 14 in which balls 15 of magnetic material are placed, held by magnets 16, fixed in each control corrective mass along its imbalance vector, and the control corrective masses are made of non-magnetic material. On the spindle 2 there are sockets for the placement of regular corrective masses 17.

During the rotation of the electric motors 8 and 9, the control corrective masses associated with them in each barrel rotate in different directions by

equal angles, as a result of which their common center of mass moves along the radius. The radial trajectories of the centers of mass of each pair of control corrective masses are shifted relative to each other by 90. The position of the balls 15 on the scale of the shell 13 determines the angular position of the control corrective masses 4 and 5 and 6 and 7.

The method is as follows.

The grinding wheel 1 is mounted on the spindle 2, attached to the spindle body 3 of the balancing device and rotate the wheel in operation. frequency. Control corrective masses 4 and 5 and 6 and 7 balance the circle, achieving an acceptable level of residual vibration.

Then the circle is stopped, the angular position of the control corrective masses 4 and .5 and 6 and 7 is determined by the positions occupied by the balls 15 relative to the scale on the shell 13, and the angle of the unbalance vector of each pair of control corrective masses is calculated from these angular positions. Calculate imbalances, as well as places. installation of standard, corrective masses 17 and set them relative to the position of the control corrective masses on the scale of the shell 13 on the spindle 2 grinding wheel 1 "Then remove the balancing device.

Claims (1)

Claim The method of balancing grinding wheels, which consists in connecting the wheel with a balancing device, rotate the circle, determine its imbalance, correct the mass of the wheel and disconnect the balancing device, characterized in that, in order to improve accuracy, the imbalance and mass correction are produced at the place of operation of the circle at the operating speed. 1486822 phage.2