SU919842A1 - Production line for assembling and welding frame metalworks - Google Patents

Description

(54) FLOW LINE FOR ASSEMBLY AND WELDING FRAME. ZHTASH10 CONSTRUCTIONS;

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- The invention relates to welding, in particular to a production line for assembling and welding frame metal structures.

Welding devices are known in which the supply of one type of blanks is carried out using a movable carriage. The assembly and welding of metal structures in the specified device takes place sequentially, on the same stand, the installation and removal of the base parts is carried out with: using workshop transport equipment l.

The drawbacks of the device are its low productivity and low degree of mechanization.

A mechanized assembly line for assembling and welding balls consisting of upper and lower strip, side and diaphragm is also known. The line contains a warehouse of workpieces and stands for welding strip, for welding side panels and for as well as

Stands for the final welding of beams. The transportation system of lines contains portals, carts and roller tables linking the warehouse with the stands and the stands among themselves. The stock of billets contains storage sites for various types of billets that are as close as possible to the corresponding welding stands. Each of these places is serviced by its own portal 23.

Rational placement of storage sites allows for a reduction in transport routes and the production area occupied by the line, however, the area is still large, and the transport system of the line is prohibitively cumbersome and energy-intensive. .

Lines for assembling and welding metal structures are known, which contain processing equipment connected by a conveyor 3.

Claims (1)

However, such lines require warehouses for billets and universal transport equipment3 or for their delivery. The rhythm of the line and its performance depend not only on the location of the equipment inside the line, but also on the rational planning of the places where the traffic flows are stored. The aim of the invention is to increase productivity by shortening the inter-operation time. This goal is achieved by the fact that the accumulators are located on one of the carts of the stepping conveyor and their number corresponds to the number of diagonals manufactured, each of the accumulators being made in the form of an oblique ramp oriented along the production line, equipped with two cutters in the form of rotating double arms The basement, next to each drive, is fixed by copiers interacting with the said levers. Fig. 1 shows a frame metal structure; in fig. 2 is a schematic of a production line for assembling and welding frame metal structures in FIG. 3, section A-A in FIG. 2; in fig. 4 "Section BB-FIG. 2 at the time of moving the step conveyor in the direction of movement of the process stream; in fig. 5 is a section BB in FIG. 2 at the time of the return stroke of the step conveyor. Frame metalwork (the truss consists of the top belt 1, the bottom belt 2 and diagonals 3 different sizes. The production line contains the welding machine 4 from the stella 5 for the manufacture of the top belt 1, the welding machine 6 with the rack 7 for the production of the bottom belt 2, trolley 8, stepper conveyor 9, assembly stands 10, cranes I1, jaw tilters 12 and tilter with lifting centers 13. Cart 8 has a platform 14c wheels 15 mounted on the track 16 along the axis of the step conveyor 9, rigidly connected with the first tel 17. The platform 14 is provided with receiving lodgments 18 and 19 for the upper I and lower 2, and on the upper plane of the platform 14 there are mounted accumulators 20 for diagonals of various sizes. 0 secitators 121 and 22 of each of the accumulators are connected with levers 23 and 24, The rollers 25 and 26 do not exist. Fixed copiers 27 and 28 are mounted along the rail 2 4 of the track 16 to act on the rollers 25 and 26 when the trolley is moved. 8. Welding units 4 and 6 as assembly booths 10 are located symmetrically with respect to the axis of the step conveyor, while the distance between the stands and the turning devices located along the line corresponds to the step of the conveyor 9. The distance between the racks 5 and 7 and the assembly stands 10 along the line width is slightly larger the width of the cart 8, The proposed continuous line works. as follows. In the initial position of the stepper kon-fan 9, the carriage 8 is between racks 5 and 7, the first carriage 17 of the conveyor is between assembly stands 10, and the subsequent carriages are located near the jaw turners 2, while the position of the turner 13 is free. In the cradle 1.8 and 19, the trolley 8 serves the upper 1 and lower 2 portions welded from pipes and flanges in installations 4 and 6. From one of the assembly stands 10 (for example, from the right along the stepping conveyor) the edge loader 11 is removed The collection is on a farm and is placed on the trolley 17 of the stepping conveyor 9. From the maxillary tilters 12, the trusses of the farm are placed on the following trolleys. conveyor belt 13, the truss is removed by a workshop bridge crane. At the second assembly stand 10 (to the left of the stepping conveyor), at this time, another truss is assembled and tacked. As the stepping conveyor 9 moves forward, the trolley 17 moves the trolley 8. At the same time, the rollers 26 attack the copiers 28, causing the levers 24 to turn, sinking the cutters 22 and the outer workpieces in the accumulators 20, separated by the cutters 21, and rolling away to the separation walls. After the stepping conveyor 9 is stopped, the crane-loader 11 is fed to the right assembly stand 10 both on 1 and 2, as well as the detachment of diagonal blocks 3 by the cutters 21 of the accumulators 20. Go to the next bogies of the stepping conveyor of the truss x 12 the final truss welding takes place (from different sides). Tilter 13 is designed to monitor and eliminate welding defects. After all the workpieces of one set are delivered to the assembly stand 10, and trusses are fed from the carts of the stepping conveyor, the step conveyor 9 and the cart 8 are moved back. When the trolley 8 is moved, the rollers 25 roll over the cam profiles 27, and the cutters 21, while being loaded, allow the next billet of each accumulator 20 to roll down to the shutter 22. After the stepping conveyor 9 stops, the receiving lodgments 18 and 19 are discharged into the following sets 1 and 2 , and from the left assembly stand 10 and maxillary tilters 12, the trusses are removed to the corresponding carts of the step conveyor 9. After the step conveyor is moved, the workpieces are overloaded to the left stand 10, otherwise the operations are the same as in first cycle The proposed design of the production line allows, in comparison with the known one, to substantially reduce the production area occupied by the equipment, free up a significant part of the transport equipment and reduce energy consumption. The line provides rhythmic work, the duty cycle of the workplace, the formula of the invention. An assembly line for assembly. And welding of frame metal structures consisting of cuttings and diagonals, containing technological equipment located on the foundation along the line, between the positions of which lifting platforms are mounted, and a stepping conveyor made in the form of carts interconnected by a driving rod , as well as the storage of workpieces, from which, in order to improve productivity by reducing inter-operation time, the drives by the number of fabricated diagonals are located on one of the step transporter carts, and at this time, each of the accumulators is made in the form of an oblique ramp oriented along the flow line, equipped with two cutters in the form of two-arm swivel arms, and copiers interacting with the said levers are fixed on the foundation next to each hopper. Sources of information taken into account in the examination 1, USSR Author's Certificate No. 364405, cl. In 23 K 37/04, 2, USSR Copyright Certificate No. 249511, cl. At 23 K 37/04,. 3, USSR Author's Certificate No., cl. At 23 K 37/04, with priority from 05.07.68 (prototype). ft iiri N 6 " fJCHIK I ff,. -T /: M t r /J:.L, ". five