SU1380893A1 - Arrangement for assembling by press-fitting of rods provided with plate - Google Patents

Abstract

The invention relates to the field of mechanization and automation of assembly work in the electronic, radio engineering and instrument-making industry, in particular, to devices for assembling the core parts with plates by pressing. The purpose of the invention is to show the performance and reliability of the device. The device contains two nodes for supplying rod parts (UPSD) 1 and 2, two L ff Г№Н plate supply device (УПП) 4 and 5 and a vehicle (ТС) 7. In the assembly area opposite to УПП 4 and 5 there is a copy bar 12 and safety bar 13, stops 14 and 15, limiting the movement of the vehicle 7, and microswitches 16 and 17. When the actuator 10 is turned on, the vehicle 7 moves along the guide 8. As the vehicle 7 approaches to the FRT 1, the rod parts 3 begin to sink into the slots of the vehicle 7 under the action own weight. When approaching the DPS 2, in the event that the slots of the TC 7 in the DPS 1 are not filled, the core parts 3 fill in the empty 1 grooves. When the vehicle approaches the SCP 4, only one ends of the core parts 3 are released by lowering the slide when interacting with a picker bar. When the plate is fed to the rod-shaped parts of the tine bar, the bar releases its end face and the pressurized ocyD ectvl. 5 il. L (C SL 00 00 O 00 x with

Description

The invention relates to the mechanization and automation of assembly work in electronic, radio engineering and instrument-making industries and can be used while simultaneously assembling a group of parts, for example, contacts with a connector block.

The purpose of the invention is to improve the performance and reliability of the device by ensuring that the plate holes are completely filled with rod parts and the design is simplified.

FIG. 1 shows a plan view of the device; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows the node I in FIG. 2; in fig. A - view B in figure 2; in fig. 5 shows a section B-B in FIG. one.

The device includes units 1 and 2 for feeding the core parts 3, devices 4 and 5 for feeding and pressing in plates 6, a vehicle 7 mounted for movement along an annular guide 8 and connected by a chain 9 with a movement drive 10 mounted on the base 11.

In the assembly area, opposite the devices 4 and 5 of feeding and pressing in the plates, a copier bar 12 and a safety bar 13, opposite one another, are installed. The movements of the vehicle 7 in the assembly zone are limited by the stops 14 and 15. On the base, micro-switches 16 and 17 are installed to command the drive 10 and turn on the devices 4 and 5 for feeding and pressing.

The vehicle 7 consists of a housing 18 with grooves 19, a guide 20 in which a slider 21 is mounted with the possibility of vertical movement relative to the housing 18. The slider 21 has grooves 22 coaxially with the slots 19 of the housing 18. Microswitches 16 and 17 are located away from the stops 14 and 15, which is equal to the length of the housing 18. To move the slider 21 downwardly, a roller 23 is attached to the slider, and a copier bar 12, and upwardly - a spring 24.

The copier bar 12 is mounted on the bracket 25 so that the beginning of the surface b is located from the end of the bar 13 at a distance of at least 1/2 of the length g (Fig. 4). If the distance r is less than 1/2 the length a, then the roller 23 slides against the copier bar 12 early.

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above, therefore, the slider 21 begins to lower before the last groove 19 with the core part on the vehicle is under the safety bar 13, which may result in the last core part falling out of the groove 19. The safety bar 13 is mounted on the uprights 26 and protects the core parts 3 from falling out of the slots 19 as the slide 21 is moved down.

The feed unit for rod parts 1 (2) consists of a vibrating hopper 27, a feed chute 28, a magazine 29, a compartment 30, spring loaded 31 to the magazine and equipped with a roller 32. The roller 32 and the cam 33 fixed on the slider 21.

The device 4 (5) feed and press-fit the plates 6 on the rod parts 3 consists of a replaceable cartridge 34, a pusher 35 located at one end in the cartridge 34, and the other in the groove of the handle 36 attached to the bar 37 and spring-loaded spring 38 to the rack 39, to which the bar 40 is attached. In the bars 37 and 40 there are holes in which the rod 41 is inserted with the possibility of interaction with the microswitch 42. The latter gives a signal that the plates 6 are exhausted in one replaceable cassette and that the second feeding and pressing mechanism 5 is turned on. The spring 38 serves to create a constant pressure on the pusher 35.

The device for pressing the plate 6 consists of a slider 43 with a slot for the plate into which the next plate from the cassette 34 falls. On the slider 43 by means of the axis 4. The notched bar 45 is fixed with the possibility of rotation relative to the slider face when the working surface interacts. strips 45 with an emphasis 4b. Plate 45 prevents plate 6 from falling out of the slider slot. The actuator for moving the slider 43 is the rod 47 of the pneumatic cylinder 48 connected to the microswitches 49-51.

The device works as follows.

Before starting the operation of the cassette device in the devices 4 and 5, the feed and pressing are filled with plates 6. In this case, the pusher 35 with the handle 36 is in the extreme upper position. The first plate falls into the groove of the slider 43 of the device 4 feeding and pressing. The stop 14 is in the extended position and the stop 15 is retracted. When the bins 27 of the devices 1 and 2 are turned on, the core parts are supplied from the trays 28 to the shops 29 where they are accumulated and kept by the cutters 30 from falling out.

When the drive 10 is turned on, the vehicles move along the guide 8. When the vehicle 7 approaches the node 1 for feeding the core parts, the cutter 30 goes down through the roller 32 and the cam 33, and the rod details begin to fall into the slots 19 as the vehicle 7 moves. 22 by its own weight. After the core part is depressed, the action of the cam 33 stops at the last groove and the slam-shut 30 returns to its original position. The movement of the column of bar parts in the magazine is stopped. The vehicle 7, continuing to move, is coming to the additional node 2 of the supply of core parts. The cutter 30 from the roller 32 and the cam 33 is lowered. The first core part in the magazine slides along the surface of the core parts, which fits into the slots 19 and 22. In the case of an empty groove, this part fills it.

The vehicle 7 approaches the device 4 for feeding and stopping the plates 6. In this case, the roller 23 hits the surface 6 of the copier bar 12 and lowers the slider 21. The vehicle 7 reaches the stop 14 and is set coaxially with the device 4 of feed and pressing. In this case, the microswitch 16 sends a signal to move the stem 47 of the pneumatic cylinder 48. The slider 21 occupies the lowest position, freeing the ends of the rod parts.

The slider 43, under the action of the pneumatic cylinder 48, cuts off one plate from the replaceable cassette 34 and moves it to the rod parts. At the same time, the next plate from the cartridge slides along the surface of the slider 43. As soon as the rod parts 2-3 mm enter the plate hole, teeth bar 45, interact with stop 4

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surface d, rotates around axis 44, releasing the end of the plate 6. After pressing in, microswitch 49 gives a signal to reverse the stroke of the rod 47. The slide 43 returns to its original position, leaving the assembled product on the vehicle 7.

When the current returns to its original position, it first presses the microswitch 50, which gives the command to remove the stop 14. Microswitch 51 gives the command to turn on the drive 10. After using the plates in the cassette of the device 4, the handle 36 with the pusher 35 occupy the lowest position. The rod presses the microswitch 42, which gives a signal to turn on the device 5 feeding and press-on. The vehicles 7 are fixed by an anvil 15 opposite the device 5.

The use in the proposed device of an additional node for feeding the core parts allows increasing its productivity by increasing the percentage of filling of the nests of the plates and, consequently, increasing the percentage of the output of the assembled products. Combining the process of lowering the slide 21 with its movement from the feed tray to the assembly position and alternately replacing the cassettes in the drives without stopping the device eliminates the idling of the slide and reduces the downtime of the device, which in turn increases productivity.

Claims (1)

Invention Formula A device for assembling by pressing of rod Parts with plates, comprising a hopper mounted on the base for rod parts with a delivery unit, plate accumulators, and feed and pressing device plistin on rod parts made in the form of sliders with a slot for the plate and drive (m displacement transport vehicle for supplying rod parts from the bunker to the assembly area, stops to limit the movement of the vehicle in the assembly area, as well as a safety bar, installed in the assembly area, and the system control, characterized by Tt M, which, in order to increase productivity and 513 reliability of the device, it is equipped with an additional bunker with a node for issuing rod parts, cutters installed in the main and additional nodes of the rod parts, a toothed bar hinged on a slider device for feeding and pressing plates on the rod parts, a coping bar fixed on the base in the assembly zone, as well as with microswitches, fixedly mounted in the assembly zone and electrically connected 4I to the control system, at the same time, the vehicle is made in the form of an annular rail mounted on the base, housings placed on the annular rail with equal pitch of the drive for moving the housings, as well as cams and rollers mounted on the housings, the first of which are mounted with the possibility of interaction with cutters knots are the core parts, and the second ones are with a coping bar, and the microswitches are located at a distance from the stops along the axis of movement of the bodies, equal to the length of the latter. / 4-D one fo fo AT- & 50 9 yj Fig 5