SU103117A1 - Fixed thrust steady to circular grinding machines - Google Patents

Description

The bead is referred to as stop dungts for a spinning machine with an autonomic adjustment of the polo; the horses of the stop cushion of the steady against the axis of the product depending on the reduction of its diameter during grinding.

In dry runs of this kind, a cam cam is usually carried out by a hydraulic cylinder, the distribution valve of which is controlled by a sensor that detects a change in the diameter of the piece during grinding.

In the described lunette, the system of adjusting the position of the universal cam is considerably enhanced and made more reliable, for which the following connection between the transverse displacements of the CTanTLa grinding head and the stop cam is made. To do this, distribute the spool of the hydraulic cylinder of the drive of the cam cam. At the same time, the cinemat1Gch: eEI is connected by means of a common system of sensitive swing levers with the grinding stock and the obstinate cam of the lunet.

The drawing depicts a schematic diagram of the stop of the steady to the circular grinding machines.

The thrust cam (1) of the lunette is movable in the direction of the axis of the article (2) and is connected with the rod of the faction (3) of the hydraulic cylinder (4) of double-acting.

The oil supply from the hydraulic pump in the cylinder cavity is controlled by the distribution valve (5), which is simultaneously kinematically connected through the system of sensitive swing levers (6) and (7) more, by cutting (8) with a grinding wheel

(9): p with a thrust cam (1) (and the lever (7) is hinged at point (7a) on the piston rod (3), and lever (6) is at point (6a). With a cross-feed of the grinding headstock on the arrow (A) the stop (8) rests on the lever (7), disrupting its equilibrium and the balance of the lever (6) and causing the gold (5) to move to the right and the piston (3) moving with the stop cam (1) in the direction of the product axis by at 9T05, the cam (1) draws the end of the back lever on it (7), thereby restoring the balance of the lever (6) and the spool (5). The cam stops.

The stop (8) is made by pulling and sliding through the screw pair

(10) and a gear-driven gear unit (I) and (12). this provides the possibility of the installation shifter (cam cam (1) regardless of the movement of the grinding wheel head).

Subject invention

Claims (3)

1. Fixed-motion ynopHbiii lunette for circular grinding machines with automatic de-adjusting the throttle and In the process of grinding the position of the thrust cam relative to the axis of the product depending on the change in diameter of the last-most hydraulic drive cylinder, characterized in that, in order to simplify and improve the reliability of the control system of the position of the stop cam, the control valve of the hydraulic drive cylinder is simultaneously kinematically installed. with a grinding wheel of the machine tool and with a stop cam of the lunette through a tracking system of sensitive swing arms. 2. Fixed pack; 0 | ry people under item 1, characterized in that, in order to provide the ability of the thrust cam to move regardless of the position of the grinding headstock, the connection of the grinding headstock with a system of tilting levers is carried out by means of a contact spherical stop made of mounting and retractable in a cross feed of the grinding head. 3. Nbodvizhniy hard stop on PP. 1 and 2, characterized in that, in order to realize the exact positioning movement of the contact spherical abutment of the grinding head, the contact spherical abutment is associated with a screw pair and a gear train with a steering wheel of the statutory movement.