SU23145A1 - Machine for spherical surface points (glass lenses) - Google Patents

Description

The machine for the point of spherical surfaces, described mainly in the patent, is equipped with a gear consisting of a bevel gear and a series of cylindrical gear wheels, which receive rotational drive from the drive, converted into a horizontal motion of one gear rail and into a vertical-second rail through vertical and horizontal gear drums and a number of gears, move in a horizontal and vertical direction the device for gripping the working tool.

In order to change the stroke of the toothed racks, the axis of the bevel gear according to the invention is provided with a second bevel gear and automatically receives a reciprocating axial movement through a lever, rod and shaft connected to a gear wheel equipped with adjustable stop pins for the pin; axis of the axis.

In FIG. 1 depicts the side; howling machine; FIG. 2 - transverse; section of the machine; FIG. 3 - the device reporting back, | translational axial movement of the axis of the bevel gears; FIG. 4 gears with adjustable stops and

with a finger mounted on the axle of bevel gears; FIG. 5 is a side view of a screen for holding the lens in process onto discs; FIG. 6 — a fixedly reinforced vran-disk; FIG. 7 rotationally fortified screen disc.

On the frame 1 (Figs. 1 and 2) of the machine, in the longitudinal guides 2, the table 3 is movably placed, on top of which, in the guides 4, the box 5 moves, comprising a mechanism driving the device 6 for grab working tool. To inform the latter of the forward movement into the depth of the material, the rotation of the shaft 7 (Fig. 1) with: the aid of the pulleys 8 and 9 is transmitted to the shaft 10 ,. located in the rack I, and into the tubular end with a tetrahedral channel of which the same section of the pin 12 of the shaft 13 is inserted, rotated in the rack 14, the shaft 7 being rotated from the motor through the pulley 15. With the help of gears 16, 17, 18 and 19, 20, 21 (Fig. 2), where the middle gears are parasitic, as well as teeth of gears 21 and 22 connected by a tubular axis, gears 22 and 23, and conical gears: wheels 24 And: 25 (figures 2 and 3) the wheel 26 is connected to the rioteness, connected via a paipasHTHoe wheel 27 to the wheel 28, at which the gear 16 is fixed on the shaft 13, and the teeth 26 and 28 of the same diameter. The gears 26 and 28 (fig. 2) are paired with each other by a horizontal rack 29, the teeth of which are coupled with the teeth of the drum 30 located on the side surface in shifts, as a result of which, when the rail 29 moves in the horizontal direction, it rotates the drum as well, as the gears 26 and 28 rotate, the rail swings in a vertical plane, remaining horizontal. And, one movement in the vertical direction and the second movement in the horizontal one. At the lower end of the drum 30 (Fig. 2) there is a bevel gear 31, coupled with a bevel gear 32, rotating with gear 33, 34 gears 35 and 36, moving along the racks 37 and 38, located on the table 3, together translational variable in speed and direction of movement of the box 5 together with the device 6 carrying the tool. . To communicate the device 6 with the cutting tool of vertical circumferential machining. The material used to the horizontal rail 29 (Fig. 2) was attached. "The vertical rail 39 was rotated at the right angle, resulting in rotation, like the one described, notched horizontal drum 40, whose movements, through a series of toothed clutches, are transmitted to a six-wheel drive: ke 41, which moves the rail 42 (Fig. 1) in a vertical plane, together with the support 6 supported by it (Fig. 1), shut up plowed through bolt 43, is screwed underneath to rod 44, placed inside vertical pipe .45, supported by barbell 46 fixed to rail 42, with the rod in tube being mounted with screw .47.

In the proposed machine, in order to reverse the travel of the toothed racks 29 and 39, the axis 48 (FIGS. 2 and 3) of the bevel gear 25 is equipped with a bevel gear 49 and receives a reciprocating axial displacement. “For alternating coupling of the wheels 25 and 49 s the pinion 24, through the lever 51 rotating on the axis 50. The lever 51 is pivotally connected at one end to a coupling 52 attached to the axis 48, and the second to an axially movable tubular rod 53 equipped with a beveled end adjoining With the same the end of the tubular rod 54, This is connected to the rod 53 by a coil spring 55, wherein a shaft 56 is placed inside both rods (Fig. 3). A gear wheel 57 (FIGS. 2 and 3) is connected to the end of the rod 54 and connected via a parasitic gear 58 with a gear wheel 59 mounted on the tube 60 covering the axis 48. At the end of the tube 60 the gear wheel 62 mounted inside the disc is screwed 61 63 and equipped with adjustable stops 64 and 65 (FIG. 4) for a finger 66 placed at the end of the axis 48.

The fixture designed to reinforce the lens being processed is located in the front part of the frame and consists of a horizontal shaft 67 (Fig. 5) supported by a stand 68 (Fig. 1) fastened with a screw 69 with a holder attached to the slider 70, which is moved by hand guides using set screw 71, clamped in the stand of the bed with the help of the pressure screw. In order to simultaneously approach and expand the disks 79 (Fig. 5), which hold the lens during processing, disks 72 and 73 (Fig. 5, 6 and 7) are strengthened on the shaft 67, of which the first is equipped with helical 74 ... and the second with radial 75 ... finger grooves for spokes 81 placed between the discs; the disks 72 and 73 are fastened in the desired position with bolts 76-76 (Fig. 5) fixedly fixed in the holes 77-77 (Fig. 6) of the disk 72 and the disks 73 entering the arc slots 78-78 (Fig. 7), the end of the finger 91 (fig. 5) of the needle entering the grooves 74 has a circular cross section, and the end entering the grooves 75 is square. The material to be processed is attached to the disks 79 (Fig. 5), mounted on axles 80, screwed to the protruding ends of the spokes 81, with the axis 82 of the middle disk having a tapered end that fits in the tapered socket

shaft 67. The latter is driven in rotation by a pulley 83 (Fig. 1) using a belt drive 84 from a pulley 85, driven in turn by a variety of gear couplings from a shaft 86, rotated through teeth 87, 88 and 89, 90 from the working shaft 7, driven in rotation from the motor.

In order to fix the product to be processed, the disk 73 is turned in one direction or another (FIGS. 5 and 7); the radial grooves of its 75 (Fig. 7) act on the square ends of the fingers 91, the round ends of which move along the spiral grooves 74 of the disk 72 (Fig. 6) and extend or move the spokes 81 along with the disks 79 (Fig. 5) prior to installation the latter, respectively, the required diameter of the lens. After that, the bolts 76-76 (Fig. 5) fasten the disks 72 and 73 and glue material to the disks 79, which is pre-processed with the drums 30 and 40 off (Fig. 2) and with the manual transfer of the table 3 (Fig. 1 and 2 } through the handle 92, the gear wheel 93 and the slats 94 attached to the table, wherein the rod 44 together with the tool 6 and the working tool is pre-set at a proper angle using the pointer located on the rotary sleeve 95 and the scale prograded on the pad 96. Next, using one of the stops 64 or 65 (Fig. 3 and 4) turn The gear wheel 62 is placed at half the angle corresponding to the arc of the spherical surface along the scale on the disk 63, and the wheel 62 is fixed in position with a screw 61, after which the corresponding set of gear wheels is mounted in the box 5 and the motor is turned on machine mechanism. When the axis 48 is rotated, a finger 66 (FIGS. 3 and 4), having reached one of the stops 64 or 65, causes the gear wheel 62 to rotate together with the tube 60, which transmits the rod 54 through gear mechanism 59, 58 and 57 whose beveled end acts on the -mowed end of the rod 53 and causes it to move in the direction of: the trunks a (Fig. 3). In doing so, the lever 51 rotates on the axis 50 and with the aid of

Clutch 52 will move the axis 48 along the wasps, resulting in coupling of the pinion gear 24 to the bevel gear 25, which through the axis 48 and a series of interchangeable gears of the box 5 will communicate the translational and vertical movement of the device 6 and the tool. After this, axis 48 begins to rotate in the opposite direction with finger 66, which, when reaching the second stop of gear wheel 62, forces tube 60 together with gear gear 59, 58 and 57 and shaft 54 to rotate also in the opposite direction. In this case, the beveled end of the latter will return to the initial position, and the spring 55 will return to the initial position the rod 53 together with the lever 51, which will disengage the wheel 24 and grip the bevel gear 49 with the pinion gear 24, as a result - the direction of the gear racks and the tool 6 with the tool will change to the opposite. The repeated vertical and translational movements of the tool 6 with the cutter, under the action of the rotating drums 30 and 40, with variable speed and direction, bring the processing of the lens rotating with the screen to the required dimensions.

The subject matter of the invention.

1. Modification of a machine tool described in paragraph 1 of patent No. 11292 for a point of spherical surfaces (glass lenses), characterized in that the axis 48 of the bevel gear 25 (Fig. 2 and 3), in order to change the course of the gear racks 29 and 39, equipped with a bevel gear 49 and automatically receives a reciprocating axial movement for alternately coupling the wheels 25 and 49 with the pinion gear 24, the cam movement is carried out by levers 51 (FIG. 3) connected to an axially movable shaft 53 located under the action eat the beveled end of the shaft 54, associated with the transmission gear 62, mounted on the spanning 48 of the tube 60 and equipped with

adjustable stops 64, 65 (Fig. 4) for the finger 66, placed on the end of the axis 48.

2. Modification of the screen described in paragraph 2 of patent No. 11292 for retaining the lens to be treated | on the disks mounted on the spokes, characterized in that, with the aim of simultaneously bringing together and moving apart the disks,

the free ends of the spokes are placed between respectively fixed and rotationally fixed on the shaft 67 disks 72 and 73 (Fig. 5-7), of which the first is provided with radial and the second with spiral fingers for the spokes, and to keep the disks between them bolts 76.