SU306688A1 - Automatic device for assembling radiators - Google Patents

Description

Machines for assembling brass radiators are known, comprising a mechanism for corrugating the cooling plates, an assembly mechanism with a magavin for tubes, a transfer mechanism and a double-sided press. Such automata can be used only for assembling brass radiators, since the pressing of the covers is carried out on a package of willows of cooling plates and tubes, in which the last arrangement of them somewhat does not correspond to the location of the holes in the covers. However, the caps are put on the ends of the tubes, causing a very slight pipe break. This is due to the fact that the holes in the caps are much larger than the tubes and there are good entrance parts. In addition, tubes and caps are lubricated. Defective tubes are easy to pick by hand. The purpose of the invention is to improve the quality of the assembly of packages and the provision of assembly. radiators from plates to be etched. For this, the proposed machine is provided with a magazine for plates with a mechanism for their release by hand and a package calibration mechanism, made in the form of two calibration plates with holes arranged respectively for the holes in the flaps mounted on two levers hinged on the slider on both its sides and driven in motion from copying mechanisms, also mounted on the bottom shelf. Without calibration of the tubes in the packages, the assembly of aluminum radiators is impossible for the following reasons. First, the holes in the caps have very little positive tolerance relative to the tube (not more than 0.15 mm), since this is necessary for high-quality sintering, which occurs due to silumin applied to the surface of the caps. Secondly, for the quality of sintering on the pipes and covers there must be absolutely no lubrication, to remove the tube and the cover before assembling the pipes, which causes a sharp increase in the friction of aluminum over aluminum. When assembling aluminum radiators with calibration, scrap is eliminated through the tubes, which is very important, since it is extremely difficult to replace them after assembly. Before assembly, the cooling plates are individually inserted into the store, from which, during the assembly process, one plate is issued. Figs 1 and 2 show the kinematic diagram of the automaton; in Fig, 3 - cooling plates; Figs. 4 and 6 show the mechanism for separating the cooling plate from the foot in the store; FIG. 6 - the same, with the support lowered; FIG. 7 shows the mechanism for calibrating the pipe in the radiator package. Store 1 is filled with tubes arranged in three rows, and the store with 2 corrugated cooling plates. On the shaft 3 of the commander-driven motor driven by the electric motor 4 through the gearbox 5, there are five cams. At the beginning of the working cycle, one of the cams switches the valve 6, which supplies air to the right cavity of the cylinder 7. Under the action of the rod of the cylinder 7, the wedge 8 moves to the right and retracts t grips 9 from the plate. After that, the control unit switches the valve 10, which corresponds to the air supply to the left cavity of the cylinder 11, and the plate by the gripper 12 connected to the cylinder rod 11 with the power 13 and the arm 14, is fed to the subassembly on the table 15. Then the control switch the valve 16, then bringing air to the lower cavities of the cylinders 17 and 18 which, when triggered, raise the tables 19 and 15. Now the valve 20 is switched in the command device, which directs the air into the left cavity of the cylinder 21, the cylinder 21 triggers, moves the wedge 22 to the right, and the clamps 23 about leading to the sides, unclamping the bottom plate in magazine 2, which allows the entire stack of plates to fall onto table 19. Air flows into the right cavity of cylinder 11, and sliders 24 connected to pad 25 feed three tubes from magazine 1 to the left of the subassembly. The tubes are guided into the grooves of the lifting table 15 and protrude under the lying one; on the table plate. After that, the air is supplied to the right cavities of the cylinders 21 and 7, which move the wedges 8 and 22 to the left, which allows the lower plate to be clamped by the gripper 9 under the action of the springs 26, and lying above the clamp 23 above it. Cylinders 17 and 18 are then actuated, and tables 19 and 15 are lowered. Table 19 is lowered together with the grips 9, which have clamped the lower plate, and due to the fact that 23 holds the next plate and the entire foot lying on it in the upper position, the lower plate separates from the foot. After lowering the table 15, the assembled part of the radiator package remains in its position in the position of support, resting on the protrusions of the side guides 27. This cycle is repeated as many times as there are plates in the package of the radiator. When the bag is fully assembled, the plunger 28 is pressed, which switches the limit switch 29, and after the control cam leaves the end switch 30, a signal is given to stop the subassembly control, and therefore the entire assembly, and to turn off the second KatviaHnoannapaTa receiving rotation from the electric motor 31 through the reducer 32. The valve 33 supplies air to the lower cavity of the cylinder 34, which corresponds to the beginning of the operation of the mechanism of the compression 35, mounted on two vertical columns. First, the supporting legs 36 are brought together, connected with each other by a shaft-bristle 37, the legs enter the gap between the lower tubes of the bag and the upper plane of the table 15, after which the whole mechanism with the bag rises to a height that ensures the bag is compressed to the desired size. The bag is clamped between the legs and the platform bounding it from above. After that, the valve 38 is switched in the control unit, and the air is directed from the upper cavity of the cylinder 39, the cylinder is triggered by means of a chain connected to the rod and thrown over the block, lifts the carriage 40c with the bag. At the end of the stroke the carriage presses the limit switch 41. which gives a signal to enable the subassembly command, i.e. on the assembly of the next set of radiator, and on the beginning of the operation of the tube calibration mechanism in the assembled package. The calibration mechanism is mounted on a horizontally movable half-wheel carrier 42 of the transfer mechanism and consists of two gauge plates 43 mounted on levers 44, KOTOfiFiie rollers 45 interact with xytromi-Ifi,

sitting on shaft 47. Cylinder 48 is actuated and turns shaft 47 with copiers 46. The copiers turn levers 44, which put gauge plates 43 on the ends of the tubes of the bag. The limit switch simultaneously gives a signal to the temporary stop of the transfer and press-fitting device. Next, an electric motor 49 is turned on, which moves the slider 42 along the guide 50 by a screw 51, wai-acting with a nut fixed in the body of the slider 42. The screw 51 is driven through a safety coupling 52,

The extreme positions of the slider 42 wa of the guide 50 are determined by the stops, the structures of which ensure the removal of the wedging in a pair of screw-nut sliding mechanism of the slider 42. This is achieved by keeping the stop 53 of the stop in a predetermined position by a spring-loaded wedge 54, which is lowered when the carriage 40 is depressed under the pressure of the bar attached to the carriage. At the end of the movement of the slider 42 to the position of pressing the caps fixed on it, the carriage 40 is movable in the vertical plane and presses the limit switch 55, which gives a signal to stop the motor 49 and trigger the cylinder 48 in the opposite direction. Then, when the center button is pressed on the control button on the control panel again the drive of the pneumatic transfer and press-in device is activated. The air supply to the upper cavity of the cylinder 39 is turned off, and the carriage 40 under the action of its own weight is lowered until it stops against the direction of press-fitting the covers. The smoothness of the descent of the carriage is ensured by throttling the air coming out of the upper cavity of the cylinder 39. The valve 56 of the pneumatic apparatus supplies air to the cylinders 57 and 58 whose uiTOK rails turn the power shaft 59 of the double-sided press through the gears. Rotating, the shaft 59 on both sides of the press lifts the vertical copiers 60 and 61, telling the movement in the horizontal plane of the sliders 62 and 63, on which the chips 64 and 65 are fixed. The radiator covers are attached to the dies.

When the press is triggered, the outer sliders first move, which put the caps on the ends of the tubes of the bag, and then the inner ones, which flare the ends of the tubes.

After pressurizing the flap and flapping the tubes, as a result of the successive switching of the valves of the interlock, the cylinders 57 and 58 are actuated in the opposite direction, returning the press slide to its original position, the cylinder 34 releases the finished radiator, and the cylinder 39 lifts the empty carriage. At the end of the stroke of the carriage 40 upwards, the end switch 55 is pressed, which turns off the control unit and turns on the screw 51 to return the slider 42 with the carriage 4O to the subassembly position after the next radiator package. At the end of the slider movement in the reverse direction, the end switch is pressed 41, which turns off the drive of rotation of the screw and gives a signal to turn on the drive of the control device. The carriage 40 descends to the subassembly position and at the end of the stroke presses the limit switch, giving a signal to turn off the control unit, but it turns off only after switching the limit switch 66 mounted in the command box CMCW.

After recruiting the next pack of plates and tubes, the working cycle is repeated in the same sequence.

Formula inventions

35 1

40 press-fitting lids on the bags, characterized in that, in order to increase the quality of the assembly of the bags, it is equipped with a bag calibration mechanism, which is replaced by two calibrating

45 plates with holes, located respectively in the caps mounted on the levers, hinged on the slider on both sides of it and interacting with rotating from the drive

50

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2. An automaton according to claim 1, clause 1 and 2; 4TQi in order to ensure the assembly of radiators from the plates to be etched, it is equipped with a magazine for assembling the plates with the mechanism of their single output, made in the form of two pairs of spring loaded one above the other

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grips and interacting with a pair of pair of spring-loaded puffers fiaaMeklinyev, mounted on the bar, zastochen on the body of the store plates pl, and

connected with the rod of the power cylinder, the other - on the machine provided

mounted on the frame, with one single table.

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