RU1808531C - Gear tooth-grinding machine - Google Patents

Abstract

Usage: mechanical engineering, in particular the design of gearing machines. The essence of the invention lies in the fact that the machine is designed for grinding barrel-shaped gears, in which the barrel is formed with a radius of approximately 1.5 gear widths. The support of the gear grinding machine is made in the form of a drum, the axis of rotation of which does not coincide with its geometric axis. The machine is equipped with a kinematic chain, including the worm sector rigidly attached to the drum with the worm and the mechanism of its reverse, a sleeve-roller chain transmission with a two-row chain of small pitch and a clearance-free cylindrical transmission, one gear of which is located on the axis of rotation of the drum, and the other is kinematically It is connected to the gear, while the chain drive sprocket is mounted on the tool spindle, and the slave is mounted on the axis of rotation of the drum. 4 ill.

Description

The invention relates to machine tool industry.

The purpose of the invention is to increase productivity when processing barrel-shaped teeth in a radial section of the teeth.

In FIG. 1 shows a side view of the machine; in FIG. 2 is a plan view of a machine with kinematics; in FIG. 3 - close-up grinding; in FIG. 4 is a plan view from above.

The machine consists of a bed 1, a headstock 2, a grinding head 3, an electric motor 4, a belt drive 5, a drive sprocket 6, a speed chain 7, a grinding wheel 8, a driven sprocket 9, cones Yu, shaft 11, shaft 12, gears 13 and 14 with clearance-free engagement, a spindle with a cone 15, a mandrel 16, on which the grinding gear 17 is put on, an arm 18 rigidly attached to the drum 19, the worm 20, the worm sector 21, the reverse mechanism 22, and the lock 23.

The machine operates as follows.

The electric motor 4, through a belt drive 5 rotates the grinding wheel 8 with a certain speed. An asterisk 6, mounted on one shaft with a grinding wheel: rotates the sprocket 9 through the chain 7 and further than the cones 10 and the shaft 12 onto the gear 13 and 14 onto the spindle 15. There is no guitar here due to shortening the speed chain, since the machine is designed for grinding a certain mass production gear M 7 mm, z 32, with a tooth curvature radius of 200 mm (final drive to a diesel locomotive). The feed movement, and more precisely along the radius of curvature of the tooth, is carried out as follows. From the cones 10 through the shaft 11, the movement is transmitted to the worm to 20, to the worm sector 21 and the bracket 18 is rotated with the workpiece 17 with a rotation axis 0 along the radius and the teeth are ground.

The gear grinding process is very fast - one gear is polished in 1-2 minutes.

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Performance is several times higher than the prototype.

Claims (1)

SUMMARY OF THE INVENTION A gear grinding machine, on the bed of which a grinding head is placed with horizontal movable guides that carries a drive mechanism for a worm abrasive wheel, and a stand on which a support is mounted that can be rotated, supporting the fastening means of the workpiece and its drive mechanism, characterized in that, in order to increase productivity when processing barrel-shaped teeth in the radial section of the teeth, the caliper is made in 0 5 in the form of a drum, the axis of rotation of which does not coincide with its geometric axis, the machine is equipped with a kinematic chain, including a worm sector rigidly attached to the drum with a worm and its reverse mechanism, a sleeve-roller chain transmission with a two-row chain of small pitch and a backlash-free cylindrical gear, one gear of which is located on the axis of rotation of the drum, and the other is kinematically connected with the worm, while the drive sprocket of the chain drive is mounted on the tool spindle, and the follower is mounted on the axis of rotation Araban.