SU541649A2 - Machine for processing holes in watch and instrument stones - Google Patents

Description

one

This invention relates to the manufacture of instrument Kaivffleft from superhard minerals.

According to the main author, no. 262649, there is a known machine for machining holes in watch and instrument stones containing a cartoon tool, such as a perpon thread, mounted on a bracket mounted on a 1-stitch, movable in the direction of three coordinates, a working head with a rotating cage fixed in it for stone, with the bracket mounted so as to swing & not in the plane perpendicular to the plane of rotation of the flj cage.

The known machine does not allow machining with sufficient accuracy from a version with a complex curved surface.

The purpose of the additional invention

is an increase in the line of contact of the working tool with the workpiece in the initial period of processing, which allows to intensify it and, thereby, significantly reduce the influence of phenomena

anisotropy, improve the accuracy of processing complex internal curved surfaces in stones.

This is achieved by the fact that the tool holder is mounted with the possibility of rolling movement in a vertical plane with the help of electromagnets mounted on both its sides, and the tool is mounted with the possibility of reciprocating movement along the bracket with a drive made with an eccentric and in contact with it lever, and with one of the ends of the tool attached to the lever.

FIG. 1 schematically shows the proposed machine} in FIG. 2 - preparation in the initial period of processing.

Claims (1)

On the basis of one machine, three movably mated brackets 2, 3, and 4 are mounted, equipped with micrometric screws B with limbs. On the bracket 4, the head 6 is fixed, in which the holder 7 is movably mounted on the pods, receiving reverse rotation from the motor 8. The holder 7 is equipped with a collet 9 for fixing the treated 3.Q. Vipko-like clip 11 is movably fixed by means of the axis 12 in the UNDER-39. 13 on base 14. Base 14 is coupled to a 15-wheel drive V &n; For example, a crank-type crank-type crankshaft, through the shaft 16, on which the limb 17 is mounted. The bracket 11 is provided with a deflecting mechanism, consisting of. of the two electromagnets 18 and 19. The working tool 2O (re-threading) is installed on the guide rollers, two of which 21 and 22 are located on the arms of the bracket at the same level as the center of the yoke 7, and one 23 on the vertical passing through its center. The drive for reciprocating movement of the working tool 20 consists of a lever 24, in the holes of which screw 25 fixes the working tool and an eccentric 26 mounted on the motor shaft 27. At the top of the lever 24 a coil 28 with a perlon thread is installed. The end of the working tool 20 is attached to block 29 mounted on the elastic element 30, mounted on the shoulder of the bracket 11 with a screw 31. The machine is equipped with a relay 32 time. The billet 10 is installed in the collet 9, while the center of the cooking coincides with the axis of the shaft 1 b, around which the bracket 11 retracts oscillating swings. Using micrometer screws 5 with limbs, the center of the blank 10 is set from the axis of the shaft 16 to a distance equal to the sum of the radii of the blank and its curvature. The working tool 2O is passed through the opening of the workpiece 1O, mounted on the guide rollers 21, 22 and 23 and secured with a screw 25. With the help of adjusting screws 33, the rollers 21 and 22 are moved until the working tool 20 of the preformed hole wall is touched. the curvature is located on a line passing through the center of the workpiece 10, perpendicular to its axis of rotation. The amplitude of oscillation of the bracket 11 is set by means of an adjustable connecting rod arm crank-rod-. rocking drive mechanism 15 across pnmb, 17 in pootve-kggvii with vedus Dyusom Kryibiy. With a sanj-cKe machine turnip, 32 times includes a reversing motor 8, upper casing 7 with workpiece 10, a rocking drive 15, a motor 27 for driving backward-moving the tool and an electromagnet 19 LOOPING mechanism, working tool 20 bends with emphasis on the surface . Approaching the holes in siv tetic blanks in this mode the machine works 4 min. Then, re 32 times off the electromagnet 19 and turns on 18. The clamp 11 returns to its original position at which the working tool contacts the treated surface in a small area. In this mode, fine-tuning of the hole is made for 1 minute. After that, the machine automatically turns off. The proposed machine ps three times reduce the processing time of a single product, double the machining accuracy and increase the yield of parts by 25%. The invention The machine for processing holes in the watch and instrument stones according to ed. No. 262649, characterized in that, with a chain of increasing the precision of processing complex internal curvilinear surfaces in stones, a bracket with an instrument. mounted with a swinging motion in a vertical plane with the help of electromagnets, installed on both its sides, and the K1trument is mounted with the possibility of reciprocating movement along the bracket using an actuator made with an eccentric and a lever in contact with it, levers, information sources taken into account in the examination: 1 ,, USSR author's certificate No. 262649, кп. B 24 b 9/16, 1968. W Rig. 2