SU720566A1 - Semiautomatic machine for making multitraverse cylindrical squirrel cage nets - Google Patents

Description

the invention relates to electrical vacuum engineering and can be applied to enterprises manufacturing electrovacuum devices, in particular medium-generation lamps. A device is known for producing multi-traverse cylindrical grids of the squirrel wheel type, COC, which is derived from the winding mechanism of the rods with the stacker / rotating movement relative to the mandrel in a plane parallel to its axis, the mandrel connected via a ratchet wheel, pawl, cam and gears with the drive shaft mechanism of winding, as well as a drive, obepepevivayuschego their work. The winding mechanism at the other end of the shaft contains a cam device, which ensures the return but-forward movement in the direction perpendicular to the winding plane. The disadvantage of this device is the use of one whole mandrel, which does not allow drawing (straightening of the rods), which leads to a significant defect in the fabricated grids. The use of one single mandrel narrows the technological capabilities of the device for making grids, as the number of frame sizes is reduced grids possible to manufacture, and also increases the consumption of wire. In addition, the lack of mechanisms for welding the caps, winding and welding of the spirals or tips, as well as welding of the holder leaves many non-mechanized operations for the fabrication of nets or requires other additional devices. The purpose of the invention is to improve the quality of the nets, increase productivity and expand technological capabilities. This is achieved by the fact that in the proposed semi-automatic device kinematically connected are two coaxially arranged with the possibility of rotation and displacement relative to the axis from the spindle drives with axially located ends to the one end of the axially coupled camshaft shaft. mandrels fixed in the sockets so that the grooves on the forming cylinders coincide The protrusions on the opposite ends of one mandrel are located against the depressions of the other mandrel , The semiautomatic device also introduces carrying arms that interact with one end of the drive, and the other through wound wire, direct to qi and protrusions on the ends of the mandrels to form a loop, as well as mounted for rotation on the arms that interact with the drives, knives, the cutting edges of which are perpendicular the mandrels and are located at opposite ends of the mandrels, parallel to which with a possibility of movement relative to their axis is a carriage with a clamping mechanism and a spiral stacker interacting with its movement is driven by a welding roller, and parallel to the mandrels there is an axis with swinging arms carrying knives for cutting grids, the cutting edges of which are perpendicular to the shafts and located in the plane of contact of the mandrels with the ends. The invention is explained in the drawings, which depict: FIG. Schematically shows the proposed semiautomatic device; FIG. 2 is the same, view A in FIG. 1; FIG. 3 is a kinematic diagram of a hemisphere; FIG. 4 shows a spindle assembly; on fig.Z - the same, type B in fig, 4; FIG. 6 is the same, view B in FIG. 4, FIG. 7, a diagram of the wire filling for the protrusions of the mandrel; on fig.Z - mandrel; Fig. 9 shows the arrangement of welding electrodes for welding the caps to the station; FIG. 10 shows a carriage for winding and welding a helix; FIG. 11 a mechanism for winding rods; FIG. Fig.1.12. The welding mechanism of the holder in FIG. 13 - the spindle of the mechanism for insertion of the holder; Fig. 14 is a kinematic diagram of the holder welding mechanism. The semiautomatic device consists of a bed 1, on the upper plate of which is located a stretching mechanism 2 with two spindles 3 aligned and facing one another, a winding mechanism 4 with a stacker 5, a carriage 6 with a welding roller 7 and a trim, tschik 8, a mechanism 9 Weld derkate l with welding roller 10 and spindle 11, differential 12, powder brake 13, dust cap 14 and lamp. On the bottom plate there is a metering unit 15 for welding impulses, a welding transformer 16, a box 17 for electrical equipment, a unit 18 for powder brake pits and a device 19 for preparation for sound. Spindles 3 mechanism 2 stretching provide the necessary position of the mandrels, as well as the axial movement of the mandrels when stretching (drawing) the rods. Each spindle is a cylinder 20 in which the sleeve 21 is located in bearings. This sleeve through gear 22 in the mechanism is engaged with gear 23 of the spline shaft 24, from which it is driven into rotation. The inner bore of the sleeve 21 is the base for the mandrel 25 on which the mesh is formed. The mandrel 25 is fixed in the sleeve 21 by a lock consisting of crackers 26 and a rotary knob 27. The handle 27 has bevels that interact when it rotates with the crackers 26. On the ledge 28 of the flange 29, the lever 30 is rotatably positioned. cutting incisions, the cutting edge of which is located at the base of the projections 32 of the mandrel 25, so that when cutting the rods the cutting edge of the knife 31 does not touch the mandrel 25, an adjusting screw 33 is located on the lever 30, which interacts with the abutment 34 on the protrusion 28. At the same protrusion on the guide 35 with the lever 36, which provides the wire for the protrusions 32 of the mandrel 25 when winding the rods. At the other end of the cylinder 20 there is a nut 37 with a lead screw 38 connected to the drive gear. The lead screw and nut provide the spindle with axial movement for drawing (straightening of the rods). From turning, the spindle is fixed in the housing by the sliding key 39, Mandrel 25 provides the geo-triangle of the grid and the necessary mutual arrangement of its elements. It consists of a working section 40, at one end of which a recess 41 is made to position the cap and on the other protrusions 32 to engage the wire 42 when the rods are wound. On the side of each protrusion, along the specimen of the working section of the mandrel, grooves 43 are made for placing the rods in them during winding. In the center of the mandrel 45 along its longitudinal axis, a hole 46 is made, the center of the pusher removing the grid from the mandrel. To ensure the welding of caps with cores perpendicular to the mandrels 25, welding rollers 47 are located, fixed with the possibility of their rotation on levers 48 interacting with the drives. The working edges of the welding rollers are located against the caps 49. The carriage 6 is designed to secure the winding of the helix onto the rods and weld it with the rods. It consists of a base 50, on which rollers 51 are located in its guides in its guides. In the supports fixed to the base 50, a shaft 52 with a gear 53 at the end is located. On the shaft 52 are freely located gear 54 reverse and gear 55 of the guitar. Between these gears, there is a clutch 56 located in the aal 52 grinding area. The air actuator clutch can engage with gear 54 or gear 55. Gear 53 in the mechanism engages with gear 57 located on the splined shaft 24 and provides movement from the spline shaft to the carriage. Movement to the slotted sleeve 58 can be accomplished through the gears 55,59,60,61 guitar (forward) or through the gears 54,62 (reverse). A spline roller 63 is located in the spline sleeve 58, the second half of which is a spindle located in nut 64. On: the base 50 in bracket 65, the welding roller 7 is pivotally fixed and fixed by means of a locking screw 66. In The same bracket is located stacker 8 for a spiral. The welding roller has the ability to move from the actuator 67, and the actuator stacker through the lever 68. The winding mechanism provides a reciprocating oscillatory movement of the stacker 5. The movement is transmitted from the bevel gear 69, the crank 70, the rail 71, the gear 72 and the lever 73. The lever 73 is attached to frame 74, on which a coil 75 with wire is also attached. The tension about the die is adjusted by a device consisting of a disk 76, springs 77 and nuts 78. In addition, welding rollers 47 are mounted on the winding mechanism case, mounted on levers 48, providing welding of the cap to the rods, and knives 79 set in motion levers 80 from pneumatic actuators and providing cutting nets. The welding-in mechanism 9 provides for fixing the mandrel with a wound grid, fixing the holder relative to the mandrel, rotating the mandrel and holding the holder with rods during welding, removing the grids from the mandrel and managing all operations on the welding and removal of the grids. All elements of the mechanism are located on the molded case 81. In the middle of the case there is a drive 82 of the mechanism. A spindle 11 with a lock 83 for the holder and a lock for the mandrel, which is controlled by the handle 84, is located on the top of the housing in the bore. The pneumatic cylinder 85 for removing the net from the mandrel is located behind the spindle. Camshaft 86 with cams is located below the drive. Air distributors and microtransmitters are located under the cams. From the distributor shaft, through a bevel gear 87, the synchronization disk 88 of welding pulses is driven. The spindle 11 is a sleeve 89, at one end of which there is a drive gear, 90, and at the other, a bearing disc 91 with a notch for the holder. On the outer diameter of this disk, three rollers 92 are uniformly circumferentially located, one gear-each roller 92. gear 93 is fixed, and another half-cut disk 94 is fixed on it. Gear 93 is meshed with rim 95, which has internal gearing. For fixing the mandrel in the spindle, there are croutons 96, which are moved and fixed by a sleeve 97. Differential 12 and powder brake 13 serve to regulate the force on the spindle x when draining (leveling the rods). Regulation is accomplished by varying the voltage on the winding of the powder brake. The voltage is changed by the handle of the power supply unit 18 located on the bottom plate. All the mechanisms are operated from pneumatic actuators controlled by distributors with shafts 86, 98, 99 driven by three electric motors 100 - 102. The electric motor 100 provides the tensile force on the spindle x 3 through a two-stage worm gearbox 103-106. transmission 107, 108, differential 12, chain transmission 109, 110, extension shaft 111, gears 112114 and driving screws 38. The required force is provided by the powder brake 13 through chain transmission 115.116, differential 12 and further to the travel gear e screws 38. The same electric motor provides rotation of mandrels 25 of spindles 3 through a chain drive 107,117, an overrunning mugtu 118, a splined shaft 24, gears 23,22, as well as movement of the carriage 6 with a welding roller 7 and a stacker 8 to a pitch of a twist helix through gears 57 , 53 ,, shaft 52, guitar gears 55, 59, 60, 61 and spindle roller spindle 63, the rotation of the camshaft 98, which provides welding spiral, through bevel gears 119, 120, 121, 122 and the camshaft guitar, 123- 126 and the electromagnetic clutch 127, the rotation of the camshaft 9 9, which provides welding of caps to rods, cutting of grids and, cutting of technological overshoots, through gears 128-132, electromagnetic clutch 133 and rotation of disk 134, - synchronizing welding pulses with rotation of mandrels 25, through bevel gears 135,136. The motor 101 provides a reciprocating oscillatory movement of the winding mechanism 5 stacker 5 through a reduction gear 137-140, overrunning, coupling 141, chain transmission 142, 143, bevel gears 144, 69, crank 70, rail 71 and gear 72, rotation of mandrels 25 through bevel gears 145 , 146, reducer 147, 148, gears 149-152 of the dividing guitar, overrunning clutch 153, Spitz-shaft 24, gears 23, 22. This

Silt: HI ciTel controls the levers: 36 f ensuring the filling of the hydraulic rims 32 mandrels 25 through the cam 154 and the roller 155 The 1U2 electric motor eliminates the rotation of the mandrel 25 3 and the welding shaft holder, holder, through the gearbox 156-159 speed, 90, 15, 15, 155-159, and the reducer 156-159 gear, 156-159 gear, 156-159 aushee

hall

go l: riva-4 ku holder and eat the grid: through the pole arch. 160-163, as well as a slide 88 disk that provides syncrosement of air impulses with rotation. Reference 25J Formation and shortcut of satok is made on BBvv special mandrels 25f of inserted edge of 3 mechanisms 2 times per ton; to: t „Rolls and styling longitudinal can-avi of mandrels of rods passage:; one oddramenka two grids of the potential of the oscillating movement of the winding mechanism 5 of the winding mechanism to the dexter of the scientific research institutes of the mandrels 25 Prn pazkkke rods at the ends of the rifle of the spacing of the pins 1 ;; and ishchkdeik reduced to one another to soprikssnovekn kolp, 1chkov-,; 1 after kaviEKK for hynkogo erased; most impulses, control-e; 1yga microswitch from the cam 16i .; The command on the keys of the electric motor 101 and in the eye eel, 31 electrodigiters 100 and electromo.T.-UFTA 27 is released. The rods of the rods are mounted (alignment).

leN; -; M 5 POROSHKOEIG, / TOPKOSOZUM 13- Kv: r: .. ioS includes air distribution distributor

forge

nsjse-on code screw using a sixth guitar;

E1) OU; 60, 61 and the slider is displaced; lijie io,., Right-time with B ijnn ieHi-vsjvi 55 pouch; {8 moves up and positioning; e against the plot, np ;;: B (lock; going from onpaBXis to piling Ku 5, This starts the stf-rakk on rods, cam 16 air distributor, air;: enters pkevmotsiliz.tsg grigovoda 67, this is the pressure of the welding roller 7 to the mandrel, Navivalsh helix is located under the Microtransfer headset, controlled by cam 168 ,, includes dosages . spp with the energy of an interlock with a coil with rods. In i-8 and welding the pulses are synchronized by the disk 13. 4 and a photoelectric datasrg ,, impulse. Is supplied at the moment when the mandrel, welding rolls and the rod are located on the same axis of the welding zone, sprayed alcohol is fed from the zozdu-distributor to the opposite cam 16. a-il iikopreplyuchatel, an abrasive cam 170 g gives a command to turn off the electromagnetic ituft 127 and turn on the muft 133, In this case the cam 165 off, 166

and gigufta 56 connects the spindle screw to hall 52 via gears 54 and 62. The carriage moves THIS in the opposite direction. A microswitch controlled by cam 171 provides a change. welding mode. The cam 172, through the air distributor and the pneumatic cylinder 173, presses the welding roller 47 to the mandrel in the place of the cap caps to the Sterskay on the mandrel 25, Cam 174 through the rotary switch wk, 11yu.et energy dosage controller and 5s5; 47 moves away, and the same welding roller 47 is attached to another mandrel 25 from cam 175 and pneumociline, part 176. There is a welding of rods with a cap on another mandrel with. After welding the cam 177 through the air spraying ™ .. pneumatic cylinders 178 179, the cutting knives 79 are directed to the mandrels 25, - This causes the rod to be cut. At this time, the microswitch controlled by the cam 180 turns off the rear brake and axial growth. General effort is removed from references. After cutting the grids. The powder brake is turned on and the spindles with mandrels expand under the action of axial force; At this time, the mz-1 shifter, which is aggravated by the cam 181, gives the command to turn on the coupling 133: the camshaft S9 stops, Shn, and the claws disperse to the stop 3 the rear walls g with etogcah -;:; It is via the microswitch lever ™. -; which gives the command to the air distributor. Then the air is driven into the pneumatic cylinders I.2 and 183 and 31 produced above: -1-; a stern (technical peg /: flaps) "At feeds; air in pne; -Zhdilikdry 182 and 183 at the same time air is supplied to the time relay .. which ensures the required time; ay: 1 cut rods; after the relay has sent a command to turn off the air distributor and the electric motor 100, After the mandrels 25 stop, they are removed from the spindles and inserted into them with a cap, at the ends of the spindles are reduced to touch the co-tape, thread the wire for the protrusion 32 of the mandrel 25 and include e, electric motor. Tel 101 o At this the cycle repeats "

Claims (1)

The mandrel with the wound ster; "with mi, with a grit and cap, they are inserted into the sleeve 89 of the spindle 11 of the welding mechanism of the holder, having previously been put on the holder ,. The decker is fixed on the spindle disk and the mandrel in the spindle and on and in the motor 102c. This cam., 184 presses the air distributor, air is fed into the cylinder 185 and the welding RO-li 10 is pressed against the mandrel in a glam touch of the holder and sterlet . The spindle then rotates and welds the holder with the rods. The energy dispenser is controlled by cam 186 through a microswitch, and pulses are synchronized by disk 88 and photoelectrically by sensor 187, alcohol is supplied from cam 188. After welding of the holder, cam 189 through the air distributor delivers air to the pneumatic cylinder 190 to open the lock, thus removing fixing with holder. The cam 191 sends a command through the microtransmitter to turn off the electric motor 102 and turn on the air distributor. Air is then supplied to pneumatic cylinders " 192 and 85. Pneumatic cylinder 192 provides the removal of the welding roller 10, and the pneumatic cylinder 85 will remove the grid from the mandrel. After removal of the grid, the pneumatic cylinder rod presses with an abutment 193 with a microswitch, which gives a command to turn off the air distributor. Thereafter, the pneumatic cylinder rod returns to its original position. The mandrel is removed from the spindle and inserted another, and then the operations are repeated. Claims of the Invention A semi-automatic machine for manufacturing many traverse cylindrical grids of the squirrel wheel type, comprising a mandrel with slotted grooves along the image of a quill cylinder, kinematically connected through a dividing chain with a stacker for winding the rods onto the mandrel, and a drive for carrying out their work, characterized in , in order to improve the quality of the grids, increase productivity and expand technological capabilities, it is installed kinematically connected through an overrunning clutch with a rotational drive and through electromagnetic clutches with camshafts two coaxially arranged with the possibility of rotation and displacement relative to the axis from the spindle drives with axial ends facing each other with mandrels fixed in slots so that the grooves on the forming cylinders coincide, and the protrusions on opposite ends of one mandrel are located against the depressions of the other mandrel, carrying levers, interacting with one end with a drive, .. and others through a twisted wire, guides and protrusions at the ends ravok for looping, as well as installed, rotatably on levers,. interacting with drives, knives, cutting edges of which are perpendicular to mandrels and located at opposite ends of mandrels, parallel to which with relative movement. but their axes have a carriage with a clamping mechanism and a spiral stacker, interacting with the drive of its movement and carrying a welding roller, and parallel to the mandrels an axis with oscillating levers carrying the grid cutting knives, the cutting edges of which are perpendicular to the mandrels and located in the cavity of the mandrels with the ends . j; L Vidb 28 thirty Fy 29 33 3 . l  one V BUT T 25 g ptp P / go 23 I figure 10 FIG. i2 S3 St