SU753583A1 - Automatic machine for producing unitized articles - Google Patents

Description

(54) AUTOMATIC MACHINE FOR MANUFACTURING NECK PRODUCTS The invention relates to the assembly of pin-type products, in particular, to the assembly of products from welded or stamped parts and parts made from wire. A device is known for making prefabricated parts, which are mounted on a frame and kinematically interconnected a sliding mechanism for feeding blanks to an assembly position, a long material feeding mechanism, a bending mechanism, a cutting mechanism and a mechanism for dropping finished parts 1. The disadvantage of this device is not high enough quality manufacturing of prefabricated products. The purpose of the invention is to improve the quality of product assembly. The goal is achieved by the fact that the shaping element is designed as pins mounted on a horizontally movable mandrel with an oriental assembly groove, the jogger is designed as a fixedly mounted base plate with windows for shaping pins, the wire feeding mechanism is kinematically connected with the control mechanism the presence of parts in the assembly zone, and the orienting assembly groove is made in the form of a groove directed perpendicular to the axis of wire feed to the assembly zone. The drawing shows a diagram of the device. The drive of the machine consists of an engine I, a gearbox 2 with two camshafts 3 and 4. A single-turn coupling 5 is installed on the shaft 3, connecting the drive with the crank-connecting rod transmission mechanism 6. The crankshaft-connecting rod mechanism 6 is connected with a pair of gearboxes through the ratchet gear 7 wheels 8 and 9. actuating the intermittent wire feed mechanism. The periodic wire feeder is equipped with drive feed rollers — the lower 10 and upper 11. The gears 8 and 9 are connected to the roller 10, the upper roller 11 is connected through the gears 12 and 13 to the lower roller 10. As the feed rollers 10 and 11 use mill rolls.

The bending mechanism of the wire blanks contains bending elements 14, gland stop 15 and cylindrical forming elements 16 and 17. The forming elements 16 and 17 are rigidly connected to each other by a horizontally movable mandrel 18. In the mandrel 18 and in the forming element 16, an assembly orienting groove 19 is inserted for insertion In it details 20 with a hole.

The mechanism for feeding the parts 20 into the assembly groove 19 is equipped with a magazine tray 21 connected with a vibrating hopper (not shown). To transfer parts 20 to assembly groove 19, the feed mechanism is equipped with a movable conveying carriage 22 and a pusher 23. For a piece by piece cut off from the flow of parts 20 coming from the vibrating hopper, the tray 21 is equipped with a spindle cutter 24 connected by a lever system 25 of the carriage 26 22

The mechanism for cutting the wire into wire blanks is equipped with fixed 27 and movable 28 knives.

To control the single-turn clutch 5, the machine is equipped with a mechanism for controlling the presence in the assembly groove 19, a part 20 containing a rotary probe 29 mounted above the assembly groove 19 at a height corresponding to the height of the part 20. The probe 29 is connected with a stop 31 by means of a lever system 30 lever pivot pin (finger) 32 one-turn clutch 5.

The mechanism for dumping finished products from the shaping elements 16 and 17 is equipped with a fixed jogger in the form of a plate 33 rigidly fixed on the base with figured cuts (windows) for the shaping elements 16 and 17 and part 20. For receiving finished products, the machine is equipped with an inclined receiving tray 34. For the uninterrupted operation of the machine is equipped with a rotating stand 35 for accommodating the coil 36 of the wire and the correct device 37.

The proposed machine works as follows.

Claims (2)

Details 20 through the tray 21 are received by hand into the carriage 22. After gripping the part 20, the corresponding drive shaft of the camshaft 4 retracts the carriage 22, which is placed in the initial position at the end of the tray 21, down to the mandrel 18. At the same time, the carriage 22 installs the part 20 opposite the groove 19 At the same time, the carriage 22 through the lever systems 26 and 25 acts on the spindle cutter 24, which stops the flow of parts 20 in the tray 21. Next, the pusher 23 located in the initial position opposite the lowered carriage 22 and at the level of the assembly par and 19, takes the part 20 of the carriage 22 on the end portion of the assembly groove 19 exiting on the mold member 16. In this hole edge member 20 occupies a position below the surface of the mold member 16 and the member 20 does not impede the forming element is applied to the wire 16. At the end of the stroke, the part 20 presses the rotary probe 29, which, through the lever system 30, removes the movable stop 31 from the zone bounded by the lever (finger) movement area of the tongue 32 when it rotates in the body of the single-turn coupling 5, which receives constant rotation from the shaft 3. Stop 31, removed from the zone of movement of the lever, the pins 32 do not sever both halves (coupling half) of the single-turn clutch 5. At the same time, the single-turn clutch 5 transfers the rotation from the shaft 3 to the curved-rod mechanism 6, the ratchet mechanism 7 and further through the gears 8 and 9 to lower feed po 10 and 11 through the gears 12 and 13 to the upper feed roller 11. The rollers 10 and 11 pull the wire out of the skein 36, pull it through the correct device 37, and then feed it through the hole in the part 20 located in the assembly groove 19 element 16 for a length corresponding to the length of the workpiece for bending, and determined by the speed of rotation of the rollers 10 and 11 and the response time of the ratchet mechanism 7. At the same time, the feed roller 11 through the rolling groove with a periodic profile gives the cut to the wire periodic profile, with a length corresponding to the length of the wire billet for bending. After the wire is fed through the hole of the part 20 and to the forming elements 16 and 17, the movable and fixed knives 27 and 28 are cut off from it a workpiece of measured length. Next, oprr 15 presses the workpiece to the shaping elements 16 and 17. The corresponding cams of the camshaft 4 return to the initial position the pusher 23, lift up the carriage 22 and release the spur cutter 24, which opens the way for the next part 20 to the movable carriage 22. At the same time, the bending elements 14, made in the form of rotating rollers fixed to fixed axes, they bend out of the workpiece wire parts of a closed loop connected to the parts 20 and forming with them prefabricated articles. After returning to the initial position of the bending elements 14, the gland stop 15 and the knives 28, the corresponding cam of the camshaft 4 retracts the mandrel 18 away from the bar 33 located at the fixing point of the shaping elements 16 and 17 between the wire feed axis and the edge of the mandrel 18 At the same time, the finished product placed with strain on the shaping tongs x 16 and 17 finds it on the fixed bar 33. The bar 33 moves the product and dumps it on the fixed tray 34. After that, the corresponding cam of the camshaft 4 rotates the movable mandrel 18 to its original position and the cycle of operation is repeated. In the absence of parts 20 in the assembly groove 19, the rotary probe 29 under the action of the return spring comes to its original position. In this case, the movable stop 31 associated with the probe 29 also occupies the initial position. At the same time, when the single-turn clutch 5 rotates, the lever of the rotary key 32 finds itself on the stop 31, thereby turning the key 32 and leading it out of the working position. The key 32 is in the neutral position and disengages the driven and driving half coupling of single-turn clutch 5. In this case, single-turn clutch 5 separates shaft 3 and crank-paddle mechanism 6 and does not transmit rotation to feed rollers 10 and 11 of the wire feeder. Thus, the probe 29 automatically stops feeding the wire into the assembly area until the jamming of the part 20 in the tray 21 is eliminated and the part 20 does not enter the assembly groove 19. Invention 1. The automatic machine for manufacturing prefabricated products containing a base, drive . kinematically connected slide mechanism with a pusher for single-piece feeding of parts into the assembly area, wire feed and cutting mechanisms, a bending mechanism, equipped with bending and shaping elements with an orienting assembly groove, and a dropping mechanism equipped with a stacker, distinguished by the fact that in order to increase the quality of the assembly of products, the shaping element is made in the form of pins mounted on a horizontally movable mandrel with an orienting assembly groove bent on it, the pusher is made in the form of zhno established on the basis of a bracket with windows for the shaping pins, and wire feed mechanism kinematically coupled with a mechanism controlling the presence of pieces in the assembly area. 2. An automaton according to claim 1, characterized in that the orienting assembly groove is made in the form of a groove directed perpendicular to the axis of the wire feed to the assembly zone. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 480521, cl. In 23 R 19/00, 1973.