SU1281380A1 - Machine for working spherical surfaces of optical parts - Google Patents

Abstract

The invention relates to the field of mechanical engineering and can be used for grinding, polishing and finishing the spherical surfaces of optical components. In order to simplify the machine design by

Description

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provide a head swing and change its swing angle from a single drive, in a machine containing a frame

1 with spindle mounted on it

2 and a head 3 with a crank-rocker swing mechanism with a drive

from the gearbox 5, on the case of which and on one of the ends of its output shaft, a tooth is made, and on the other end there is a faceplate 8 with a screw pair, the nut 9 of which is connected through the rocker 6 with the head 3, on the screw 10 of the faceplate

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The invention relates to mechanical engineering and can be used for grinding, polishing and finishing spherical surfaces of optical parts.

The aim of the invention is to simplify the design of the machine by allowing the head to roll and to change the swing angle from a single drive.

The drawing shows the intended device.

The spindle 2, head 3, having the ability to swing around axis 4, and the worm gearbox 5 are mounted on the frame. The head 3 is connected to the screw gear 5 through the rocker arm 6 at the end of the output shaft 7 of the worm gearbox 5 and the faceplate 8 with screw pair 9 is installed and 10. On the nut 9 of the screw pair, a pin 11 is fastened, which is a crank that fits into the groove of the link 6. The screw bevel gear 12 is rigidly fixed on the screw 10. The gear half couplings 13 and 14 are mounted on the gearbox housing 5 and on the second end of the output shaft 7 . Output shaft gear vt ying hollow. Inside it is installed a pivotally additional shaft 15, at one end of which a conical gear 16 is rigidly secured with a tapered wheel 12 of a screw pair of the faceplate, and at the second end is mounted movably along the axis of the second shaft 15 of a gear coupling 17, which is inserted into the spring gearing with gear

80

the bevel gear 2 is fixed, the output shaft of the reducer is hollow, inside it there is a rotary additional shaft 15, at one end of which the bevel gear 16 is fixed, which engages with the bevel gear 12 of the faceplate screw, and at the other end is set movably along the axis ( the possibility of coupling with the teeth of the gearbox housing or with the teeth of the output shaft of the gearbox) gear coupling half 17. 1 sludge.

the coupling half 14 of the output shaft 7 of the gearbox .. On the gear coupling half 13 mounted on the gearbox housing, a pneumatic chamber 19 is fixed.

The machine works in the following way.

A spindle 2 is secured with a block 20 with optical components 21. A tool 22 is mounted on the block 20, which is pressed against the block 20 by a lead of the head 3, then the machine is turned on. For this purpose, the electric motors of the drive of rotation of the spindle 2 and the drive of the swinging head 3 (not shown) are included. The rotation of the swing motor is transmitted through a worm gearbox 5 to a faceplate 8 with a crank 11, which, when the faceplate rotates, describes a circle and pumps the rocker 6 connected to the head 3. The shaft 15 at this time is rigidly coupled to the output shaft 7 of the worm gear 5 and rotates with it together, keeping the bevel wheel 12 from accidentally turning when vibrating and changing the eccentricity of the crank 11.

To change the swing angle, compressed air is fed into pneumatic chamber 19 and

The gear half coupling 17 overcomes the resistance of the spring 18, moves along the shaft 15, while it comes out of the engagement with the half coupling 14 fixed on the output shaft 7 and engages with the half coupling 13 fixed on the gearbox housing 5. The shaft 15 stops and the bevel wheel 12, rolling on the fixed

Claims (1)

gear 16 rotates screw 10 as the faceplate rotates. Nut 9 with crank II moves along screw 10, the radius of the circumference described by crank 11 entering the groove of link 6 changes and the swing angle of head 3 changes and changes. A machine for processing spherical surfaces of optical components, comprising a frame with an article spindle mounted on it and a tool head connected to the output shaft of a worm gearbox by means of a crank-rocker swing mechanism and a swing angle adjustment mechanism including a transmission, characterized in that, in order to simplify the construction of the machine, the output shaft is made hollow, and the machine is equipped with an additional shaft and gear coupling halves, one of which is installed at the end of the additional shaft with the possibility of longitudinal movement and interaction with other gear coupling halves, mounted on the end of the output shaft and the gearbox housing, while the gears of bevel gear are mounted respectively on the additional shaft and inserted into the crank-and-link mechanism screw kinematically communication with the crank-bonded.