KR102589793B1 - Safety Scaffolding Automatic Welding System - Google Patents

Abstract

The present invention relates to an automatic welding system for safety scaffolding for scaffolding, where reinforcement and end caps are formed to enable spot welding on the scaffolding, which is a component of safety scaffolding for scaffolding, and quick welding of the reinforcement and end caps through spot welding and the welded area. It is possible to improve welding quality by minimizing contamination or defects, and the movement line between system devices in the automatic production line is designed to quickly and automatically produce safety scaffolding for scaffolding that can secure structural stability by final joining the hook through CO ₂ welding. In addition to minimizing the input of manpower in assembling the components to form the safety scaffold, the overall process time, or TAC time, is designed and configured to be reduced to the maximum through positioning that takes welding into consideration from the initial assembly. This is about an automatic welding system for safety scaffolding for scaffolding that can shorten TAC time and improve productivity.

Description

Safety Scaffolding Automatic Welding System}

The present invention relates to an automatic welding system for safety scaffolding for scaffolding. More specifically, the present invention relates to an automatic welding system for safety scaffolding for scaffolding. More specifically, the reinforcement bar and end cap are formed on the scaffold to enable spot welding, thereby improving the speed of welding and high welding quality of the reinforcement bar and end cap through spot welding, and the hook. By configuring each step to quickly and automatically produce safety scaffolding for scaffolding by final joining through CO ₂ welding, the overall TAC time is shortened and productivity is improved through this, and the reinforcement and end caps excluding the hook are joined through spot welding. In the conventional welding system, the problem of air pollution caused by the production of a large amount of carbon as the entire scaffolding safety scaffolding is produced by CO ₂ welding can be reduced by nearly half in the production of scaffolding safety scaffolding through spot welding. This is about an automatic welding system for scaffolding safety scaffolding that can prevent air pollution, minimize surface contamination due to welding poop, and improve product quality.

Scaffolding is a temporary structure installed to enable work at high places during construction work. It is constructed to transport materials, move passageways, work, etc. In terms of materials, it is log scaffolding, pipe scaffolding, and in terms of use, it is external scaffolding, internal scaffolding, and horizontal scaffolding. , it can be divided into hanging scaffolding, simple scaffolding, ladder scaffolding, single-rope scaffolding, double-rope scaffolding, and double-rope scaffolding in terms of construction methods. Recently, structures called steel tube scaffolding or system scaffolding are mainly used at construction sites.

In the case of steel pipe scaffolding, it is made of steel pipes with aluminum plating on the surface. It has the advantage of being able to be freely assembled using connecting hardware such as locking members and fasteners, and is mainly used in the construction of relatively small buildings.

In the case of system scaffolding, unlike steel pipe scaffolding that can be installed arbitrarily, it is scaffolding that is manufactured to be standardized and assembled through structural calculations. It is relatively safe and is mainly used in the construction of medium to large buildings.

This system scaffold can largely be composed of vertical members installed vertically at regular intervals from the ground, a number of horizontal members assembled to connect the vertical members, and safety scaffolding installed for the convenience of movement or work.

A method of manufacturing such a safety scaffold for scaffolding is disclosed in Korean Patent Publication No. 10-2014-0132558.

The conventional safety scaffolding for scaffolding unwinds the material wound in the form of a coil from an uncoiler, spreads the unwound material flat, drills a hole in the flat surface where the upper plate is formed, and then makes the periphery of the punched hole protrude upward. Pressurize to form protrusions. Afterwards, the front and back ends of the material on which the plurality of holes/protrusions are formed are bent symmetrically to form a border. Here, the direction of bending towards the border is toward the lower side, and the upper part of the material becomes the upper plate, and a portion of the upper plate is formed. It is bent to form at least one reinforcing rib. On the other hand, if it is difficult to increase the strength of the top plate with reinforcing ribs alone, a plurality of ribs can be formed together with the reinforcement ribs in a smaller size than the reinforcing ribs to increase the strength of the top plate.

Next, the semi-finished scaffolding safety scaffold with reinforcing ribs is cut to fit the size to be used, and fabrication is completed by welding edges, reinforcement bars, and hooks for strength reinforcement to both left and right cut ends.

However, since these conventional safety scaffolds for scaffolding require a large number of workers and are difficult to expect work efficiency because each connection part is manually welded after roll forming and cutting, with the edge, hook, and reinforcement being combined by hand. Moreover, because the shape of the harness or reinforcement itself is line welded through CO ² welding rather than spot welding like spot welding, foreign substances such as welding waste may attach to the surface, increasing the process of removing it or damaging the surface. There was a problem with the product being manufactured in a contaminated state.

In addition, because welding is performed manually, the welded area is not formed consistently, and the defect rate due to welding defects is high, leading to problems of waste of raw materials and increased production costs.

Accordingly, a welding device for safety scaffolding for scaffolding is disclosed in Domestic Registered Patent No. 10-1708908, but this also can only spot weld the safety scaffold itself after roll forming and cutting, and can also weld the edge, hook, and reinforcement bar. There is a problem that does not exist.

What is spot welding? It refers to resistance welding that is performed by placing metal plates on top of each other, placing the tip of an electrode on top of the bottom of the metal plate, concentrating current and pressure on a relatively small area, heating it locally, and simultaneously applying pressure with the electrode.

Considering that spot welding is a resistance welding process that welds two or more metal plates together by applying pressure and heat from an electric current to the welding area, it solves the problem of carbon generation due to the large amount of carbon dioxide generated in conventional C-O2 welding. This can improve the working environment and prevent air pollution. In other words, since it is a welding method using pressure and heat using electric current, there is virtually no carbon dioxide generation, which not only makes it possible to improve the environment in the workplace, but also plays a role in preventing air pollution by not generating a large amount of carbon dioxide, and is internationally recognized through carbon reduction. This is a welding method that can contribute to industrial development in accordance with the carbon neutral declaration. In addition, such spot welding is easy to automate, making it a suitable welding method for mass production lines.

In other words, the safety footrest in the state in which roll forming and cutting is completed is in a state where the left and right sides are bent in the shape of a plate, so the area where the bent plates overlap is exposed to the outside, and accordingly, round bar-shaped electrodes are placed above and below the overlapped area. Spot welding is possible because it can be positioned, but spot welding itself is impossible in order to weld the harness or reinforcement bar to the left and right ends of the safety footrest. Normally, the shape of the edge takes the shape of a hexahedron with one side open, and the left and right ends of the roll formed and cut safety step are formed into a "┏┓" shape and are configured to be joined and then welded. When welding, the safety step is used as a safety step. Welding is done with the electrode turned upside down. At this time, when spot welding is attempted, one round bar electrode can be grounded from the outside, but the other electrode cannot be located on the same line as the safety footrest and the inside of the edge. The disadvantage is that spot welding cannot be automated.

Furthermore, if spot welding is to be performed, the worker must individually select each point and perform spot welding. In this case, the spot-welded parts are spot-welded in different positions for each scaffolding safety scaffold being manufactured, thereby increasing the safety of the safety scaffold. When the defect rate increases and an attempt is made to manufacture safety scaffolds of the same quality through automation, spot welding is impossible due to structural problems between the safety scaffold, the edge, and the reinforcement bar.

Therefore, since the edge and reinforcement of a normal safety scaffold cannot be performed through line welding using CO ² welding, there is a problem that the reduction of the TAC time, which is the overall process time, is extremely small even if line welding is automated.

Meanwhile, in order to improve these problems, Republic of Korea Patent No. 10-2372885, registration date March 4, 2022. A continuous automatic welding system for safety scaffolding assemblies for scaffolding is being disclosed.

The conventionally disclosed continuous automatic welding system for scaffolding safety scaffold assemblies has the bottom of the safety scaffold combined with the edge, reinforcement, hook, rivet connecting the edge and hook to the safety scaffold, and a stop washer to prevent the rivet from coming off. When the shuttle moves the safety footrest one step at a time, the rivet is pressed in the rivet part to fix the end and hook to the safety footrest, and the reinforcing bar is held in the reinforcement bar assembly part and connected to the safety footrest, and then connected to the safety footrest. In order to shorten work time, spot welding is performed on the connection parts of the safety footrest, edge, reinforcement bar, and hook.

Here, in the above configuration, after preparing the scaffolding body of the safety scaffolding for scaffolding in which conventional roll forming and cutting have been completed, the lower surface of the scaffolding body is turned over so that it faces upward, and the end and hook are riveted to the scaffolding body through the rivet portion. After being fixed, the reinforcement bar is loaded from the reinforcement bar assembly section and joined between the lower surfaces of the scaffold body with the edges facing each other, and the edge, hook, and reinforcement bar of the scaffold body moved to the welding area are joined to the scaffold body through spot welding. It is formed to produce safety scaffolding for scaffolding.

However, the conventionally disclosed continuous automatic welding system for scaffolding safety scaffolding assemblies has the following problems.

First, in the content of the prior art, it is described that "the input part is installed at the input port of the shuttle, and the scaffold body with the end, hook, rivet, and stop washer assembled is input in an inverted state by the worker," and this description has already been described. The edge and hook on both left and right ends of the scaffold body are joined by rivets and stop washers. In the process of joining the edge and hook through rivets and stop washers, the input of manpower is inevitable. Even if the process of combining the edge and the hook is automated, a device for combining the rivet and the stop washer must be provided in addition to the device according to the stage of combining the edge and the hook, and the safety footrest itself is already pre-assembled. Considering the overall work time, there is a limit to reducing the actual TAC time as the rivet fastening process and the reinforcement bar fastening process must be carried out in that order.

Furthermore, there is an additional problem in which the coupling relationship between the edge and the hook cannot be precisely achieved due to vibration caused by external shock generated in the process of inserting the scaffold body with the rivet fastened through the input part while the edge and hook are combined. It can be.

In other words, there is a problem of increased labor costs or the need for line design through additional processes.

Second, the scaffold body inserted into the reinforcement assembly unit already has its edge and hook fastened by rivets and washers, and the reinforcement itself must be connected to the lower surface facing the upper side of the scaffold body in order to be connected to the upper surface of the scaffold body. It must be formed to be smaller than the width of the lower surface of the main body to enable smooth fitting.

This is due to the problem that the reinforcement assembled in the reinforcement assembly part does not remain fixed in the correct position during the process of inputting into the next process, and its position changes or it does not maintain a state perpendicular to the bent edge of the scaffold body and becomes distorted. Because it may cause defects, the next process must be carried out while maintaining the reinforcing bar continuously held by a separate holder member. However, in the prior art, the holder member is only used to hold the reinforcement for loading the reinforcement, and there is no further fixing means when the reinforcement is assembled in the lower surface of the scaffold body, so when the next process is carried out via a conveyor or other moving means, the position of the reinforcement is difficult. There is a limit to reducing TAC time because fluctuations or distortions occur and there is a hassle or problem of having to correct the position of the reinforcement again in the next process.

Here, it is described that the reinforcement is rotated and coupled to the scaffold body so as to be perpendicular to the scaffold body in order to prevent the reinforcement from changing position or being twisted, and in the content of the technology, the reason for rotating and combining the reinforcement is explained as follows. I'm doing it.

It is described as "This is because a groove is formed in the center of both ends of the reinforcement bar that is inserted and joined to the footrest main body." This means that in order to increase the strength of the footrest main body, at least one reinforcing rib is bent on the center side and extends in the longitudinal direction of the footrest main body. Because it is formed like a rail, a groove must be formed in the reinforcing ribs to fit the reinforcing bar, so that the reinforcing bar can be properly connected to the lower surface of the scaffold body. However, the groove coupled to the reinforcing rib must also have a certain clearance for the reinforcing rib to fit properly into the groove. Since the error range of the loading member and the error range of the holding position of the reinforcement held by the holding member must be taken into consideration, the groove of the reinforcement must have a certain clearance, which means that if the held state is not maintained, the distance due to the clearance must be This is because there is a problem in that the position of the reinforcement is distorted or cannot remain perpendicular.

In other words, there is no means to fix the separate reinforcement bar in the correct position in the reinforcement bar assembly section, so an additional process is required to correct the reinforcement bar to the correct position due to defects due to changes in the position of the reinforcement bar, which is a problem that cannot reduce the overall process time. There is.

Third, the welding part, which is the final stage of the conventional continuous automatic welding system for safety scaffolding assemblies, is configured to finally produce scaffolding safety scaffolding by combining the edges, hooks, and reinforcement bars previously loaded and assembled on the scaffolding body through spot welding. .

However, in the prior art, it is described that spot welding is performed, but actual spot welding is not possible. The reason is shown in the drawing, and in terms of content, when looking at the scaffold body, which was rolled formed and cut in the same way as the production of the scaffold body of a conventional safety scaffold, and the edges, hooks, and reinforcement bars connected to it, there is no structure that can be spot welded at all. There is none, and they all have a structure that leaves no choice but to use normal CO ₂ welding.

As mentioned earlier, spot welding is a method of welding by grounding round bar-shaped electrodes up and down while the objects to be welded are overlapped with each other. The welded result is in a round shape and is joined in a slightly pressurized state, causing surface damage. This is minimized and welding is possible. This spot welding is a welding method that is different from the welding result in the form of stacked coins in the form of line welding like CO ₂ welding.

In other words, in the conventional welding system, the loaded scaffold body itself is composed of a plate shape, so that round bar-shaped electrodes can be placed up and down, enabling spot welding. However, looking at the shape of the end coupled to the scaffold body, it is already safe in the conventional manner. It can be seen that the scaffold and the edge of the currently disclosed welding system have the same shape. To explain this form, the hole where the hook is connected to the side is formed symmetrically, and the top, bottom, and left and right of the plate body are of the same length and are attached to the scaffold body. It is bent at a right angle to be joined, so the overall shape takes the shape of a hexahedron with one side open.

This means that one end of the scaffold body and the open part of the edge are joined facing each other, and the bent upper, lower, left, and right parts are overlapped and joined to surround the outer circumference of one end of the scaffold body, and a round bar-shaped electrode for spot welding is attached to the scaffold body. There is a problem that it cannot be located once inside. In other words, the electrode for spot welding can only be located on the inside of the scaffold body that is unrelated to the edge, not the inside of the scaffold body where the edges overlap, so spot welding is virtually impossible, and the reinforcement bar also has only grooves formed and cannot be spot welded. It is a reinforcement bar that does not have any separate configuration for.

Accordingly, the conventionally disclosed technology has a structure of edge and reinforcement that cannot be spot welded at all, and only CO ₂ welding is possible. Moreover, as can be seen in the part showing the welding part indicating the robot arm in Figure 11 of the conventionally disclosed technology, the welding device itself formed at the end of the robot arm is shown as a device for CO ₂ welding, making actual spot welding impossible. Therefore, the construction of the edge and reinforcement of the safety scaffold, which only allows CO ₂ welding, is shown as if it were spot welding without specific explanation of the CO ₂ welding device.

In other words, spot welding helps improve product quality because the welding surface can be welded cleanly, and it has the effect of reducing the overall TAC time by quickly welding overlapping objects even when folded with only weak pressure. ₂ In light of the fact that the welding is described as spot welding, and the content also states that spot welding, which is actually impossible, is possible, _CO2 welding is a line welding and is less effective in reducing the overall TAC time than spot welding.

Therefore, for spot welding, the edge (end cap in the present invention) and reinforcement connected to the scaffold body must be designed and changed to a structure capable of spot welding, and this structural design change must also comply with safety regulations. When comparing the characteristics of the conventional The technology being disclosed is that the scaffold body, edge, and reinforcement are already applied by quoting the existing safety scaffold, and although CO ₂ welding is shown in the drawing, spot welding is used even though the scaffold body has a structure of horse and reinforcement that makes spot welding completely impossible. In that regard, there is a need for an automatic welding system for safety scaffolding for scaffolding that can substantially improve product quality through spot welding, have a structural design that allows spot welding of the scaffold body, edge, and reinforcement, and reduce the overall TAC time through this. There is a situation.

Meanwhile, in producing safety scaffolding for conventional scaffolding, there was virtually no alternative other than CO ₂ welding due to structural problems. Moreover, the automatic welding system, which is a prior art that presented the problem above, is also described as spot welding, but in reality, it only consists of CO ₂ welding.

Considering the recent efforts of each country to reduce carbon-generating industries and purify the global environment around the world, the welding system for producing safety scaffolding for scaffolding cannot avoid generating a large amount of carbon. In order to replace it, carbon emissions can be reduced through spot welding, which is equivalent to pressure point welding, but the reality is that no one is currently attempting this, and it is not economically feasible for companies to reflect structural rigidity and durability through spot welding in the design. The reality is that the burden has no choice but to increase.

Therefore, although the above requirements are important, there is a need for the production of safety scaffolding for scaffolding that can exclude CO ₂ welding for the future global environment and apply a welding method that can reduce carbon. Moreover, there is a trend internationally to produce and use carbon-reducing products, which can ultimately be directly related to the country's image, and the production of safety scaffolding for scaffolding that can prevent environmental pollution through carbon reduction in the future is required.

1. Republic of Korea Patent Publication No. 10-2014-0132558, published on November 18, 2014. 2. Republic of Korea Patent No. 10-1708908, registration date: February 15, 2017. 3. Republic of Korea Patent No. 10-2372885, registration date: March 4, 2022.

Therefore, the present invention was created to improve the problems described above, and the reinforcement bar and end cap are formed on the scaffold to enable spot welding, enabling rapid welding of the reinforcement bar and end cap and high welding quality improvement through spot welding. In addition, the hooks are finally joined through CO ₂ welding to minimize the movement line between systems on the automatic production line to quickly and automatically produce safety scaffolding for scaffolding, and welding from the initial assembly in assembling the components to construct the safety scaffolding. By selecting a location that takes into account the overall process time, TAC time, is designed to be reduced to the maximum, thereby reducing the overall TAC time and improving productivity, and by joining the reinforcement bar and end cap, excluding the hook, through spot welding, eliminating welding waste. The purpose is to provide an automatic welding system for scaffolding safety scaffolding that minimizes surface contamination due to generation and thereby improves product quality.

In addition, in the present invention, in the automatic welding system for producing safety scaffolding for scaffolding, the welding ratio of safety scaffolding for scaffolding through spot welding accounts for nearly half, so a large amount of carbon is generated as the entire manufacturing process is produced by CO ₂ welding. To provide an automatic welding system for safety scaffolding for scaffolding that can prevent air pollution and strengthen international competitiveness through manufacturing in accordance with international carbon reduction policies by significantly reducing the carbon generation rate through spot welding to address the problem of air pollution. It has a purpose.

In order to achieve this purpose, the automatic welding system for safety scaffolding for scaffolding according to the present invention is to enable spot welding of the scaffolding (10), reinforcement (20), and end cap (30) among the safety scaffolding for scaffolding. Designed and manufactured to enable spot welding, the lower surface of the roll formed scaffold (10) is turned over and ready to stand in a horizontal state facing upward, and the loader is idled (to be supplied horizontally by rollers). A first loader unit 100 provided with 110); After the scaffold 10 supplied from the first loader unit 100 is positioned, the width of the scaffold is adjusted by the front and rear width adjusting units 220 of the scaffold holder 210 and the scaffold clamp 230. After fixing the top and bottom of the longitudinal edge of the scaffold to prevent movement, and holding the reinforcement 20 in the reinforcement holder 240, the scaffold 10 is on the same level as the lower surface of both ends of the scaffold from the upper and left sides. It rotates and moves on the lower surfaces of both left and right ends of the scaffold, and the reinforcement holder 240 is fitted by the draw cylinder to horizontally move the reinforcement inward along the lower surface of the scaffold (10), and the scaffold ( 10) After holding the end cap 30 on the end cap holder 250, which rises vertically from the bottom of the left and right ends toward the scaffold and rotates at a right angle to the left and right both ends of the scaffold, the end cap 30 is held by the end cap holder 250. ) is located facing both left and right ends of the scaffold, and the end cap holder 250 is configured to fit the end cap 30 to both left and right ends of the scaffold by a pull cylinder, so that it is symmetrical forward and backward on the turntable divided front and rear. A loading assembly 200 formed; Among the loading assemblies 200 formed symmetrically before and after the turntable, the turntable rotates 180 degrees with the scaffolding 10, reinforcement 20, and end cap 30 inserted into the loading assembly on the first loader 100 side. The gun-and-grip robot arm 310, which is positioned in a rotating position and performs a grip function that can hold and move the spot welding gun and the scaffold, is provided in front of the turntable, and is coupled to the scaffold 10 on the turntable, which is pivotably operated. (20) is tack welded to a part of the spot welded area of the reinforcement bar so that the assembled position is not changed by spot welding, and the spot gun robot arm (320) equipped with a spot welding gun is symmetrically left and right on the outside of the turntable at both ends of the scaffold (10). A tack welding portion 300 that is provided and tack welds a portion of the spot welded portion of the end cap 30 by spot welding to maintain the coupled position of the end cap 30 coupled to both ends of the scaffold; The scaffold 10 tack-welded with a portion of the spot welded portion of the reinforcement 20 and the end cap 30 is held by the gun and grip robot arm 310 and is held within the rotation radius of the rotating gun and grip robot arm 310. 1 The fixed spot welding device 410 is located, and reinforcement and reinforcement are applied to the spot welded portion other than the tack-welded portion of the reinforcement bar 20 and the end cap 30 of the scaffold 10 held by the gun and grip robot arm 310. For additional spot welding, the scaffold 10 is moved in a held state along the rotation radius of the gun and grip robot arm 310, and the area where the reinforcement 20 and the end cap 30 are welded at the tack welding portion 300 Additional spot welding areas except for are added through the first fixed spot welding device 410, and the added scaffold body 10 continues to rotate in the broken state by the gun and grip robot arm 310 and is attached to the idling bed 420. a first tapping unit 400 that is placed in a standby state and positioned toward the tack welding unit 300; A grip robot arm 510 is provided at a point symmetrical to the gun-and-grip robot arm 310 of the tack welding part 300 around the idling bed 420, and the first fixed spot welding of the first increase part 400 is performed. On one side of the device 410, a second fixed spot welding device 520 is located within the rotation radius of the grip robot arm 510, and the idling bed of the first increaser 400 is connected by the grip robot arm 510. (420) Holds the scaffolding body (10) waiting on the grip robot arm (510) and moves it to the second fixed spot welding device (520) along the rotation radius of the grip robot arm (510), while strengthening the reinforcement bar (20) and end of the scaffolding body (10). The cap 30 is additionally spot welded to the spot welded portions that were not spot welded in the tack welding portion 300 and the first additional welding portion 400, and as the spot welding is completed, the grip robot arm 510 is moved along the rotation radius to the next process. After moving, the second increase unit 500 is provided to be positioned toward the idling bed 420; After the spot welding of the spot welding portion of the reinforcement bar 10 and the end cap 30 coupled to the scaffold 10 is completed through the second reinforcement unit 500, the grip robot arm 510 continues along the rotation radius. ) is placed on the first stall age 610 formed with a first cooling transfer member 620, which is provided to move up and down and forward and backward in the front longitudinal direction within the rotation radius in which the scaffold body moves, and the first cooling transfer member As the scaffold 10 moves forward one step at a time by (620), the welded portions of the scaffold 10, the reinforcement 20, and the end cap 30 heated by spot welding are cooled to room temperature to stabilize, When cooling is completed, a conveyor 660 is formed to be continuous with the first stall age 610, and a first cooling unit 600 is provided to transport the scaffold 10 by the conveyor 660; The second loader idling 710 is provided so that the scaffold 10, whose spot welding area has been stabilized through room temperature cooling, is moved and supplied through the conveyor 660 to wait, so that the second loader idling 710 ) a second loader unit 700 on which the scaffold 10, which is spot-welded and joined to the spot welded portion of the reinforcement 20 and the end cap 30, is placed; After the scaffolding body 10 having the reinforcement bar 20 and the end cap 30 spot-welded is loaded and positioned from the second loader unit 700, the scaffolding body 10 is held by the safety scaffolding holder 810. Flow is prevented by fixing both ends of the end caps coupled to both left and right ends and the longitudinal edge of the scaffold body width at the top and bottom, and according to the hook hole spacing on the same line as the hook hole of the end cap at the lower side of the left and right ends of the scaffold body (10). After the hook 40 is placed and held in the hook holder 820 whose left and right widths are adjusted, the hook holder 820 is configured to fit the rear end of the hook into the hook hole of the end cap by means of a hook cylinder, so that it is connected to the turntable divided into front and rear. A hook loading assembly 800 formed symmetrically forward and backward; The turntable rotates 180 degrees while the hook 40 is coupled to the end cap 30 on the hook loading assembly side of the second loader unit 700 among the hook loading assemblies 800 formed symmetrically before and after the turntable, and CO ₂ The spot welding portion of the reinforcement bar (20) coupled to the scaffolding body on the turntable is provided in front of the turntable with a ceo-to-grip robot arm (910) that performs a grip function that can move by holding the safety scaffolding for the welding machine and scaffolding. The remaining sections are welded to other welding areas, and a CYO2 robot arm (920) equipped with a CO ₂ welder is provided symmetrically to the outside of the turntable in addition to the spot welding areas of the end caps attached to both ends of the scaffold (10). After welding the spot welding portion of the end cap 30 coupled to both ends of the sieve and the remaining section and the circumference of the hook hole where the hook 40 is coupled, the put-up cylinder of the foot-up portion 816 of the safety step holder 810 is operated. Accordingly, the safety scaffold resting portion 811 rises vertically, and the CYO2 welding portion 900 discharges the welded safety scaffolding for scaffolding; The scaffolding safety scaffold in which the reinforcing bar 20, the end cap 30, and the hook 40 are welded to the scaffold 10 is held by the CYO2&Grip robot arm 910 of the CYO2 welding portion 900. , The second stall age (610') is formed with a second cooling transfer member (620') that is located on the front side of the turntable at the turning radius of the CEO2&Grip robot arm (910) and moves up and down and forward and backward in the front longitudinal direction. After placing the scaffolding safety step held on the CEO2 welding section 900, the scaffolding safety step moves forward one step by the second cooling transfer member 620' and is welded by CEO2 welding. a second cooling unit (600') provided to transport the heated scaffolding safety scaffold while cooling it to room temperature to stabilize the welded portion; It is characterized in that welding is completed through the second cooling unit 600' and is completed through the painting and finishing process of the final supplied scaffolding safety scaffold.

Here, the edge is formed to be long in the longitudinal direction and bent to maintain horizontality, a number of holes and protrusions are perforated in the upper plate to drain and non-slip, and the upper plate is bent to overlap downward to provide at least a reinforcement rib for horizontal reinforcement. A scaffold body (10) formed of one or more, in which a plurality of ribs smaller than the reinforcing ribs are formed for additional horizontal reinforcement, and coupled at a right angle to the lower side with respect to the longitudinal direction of the scaffold body (10), without interference of the reinforcing ribs. It is provided with a reinforcement bar (20) in which a reinforcing bar insertion groove is formed as much as possible, and a side plate in which hook holes 32 are formed left and right symmetrically, and horizontal pieces 34 are formed symmetrically in the longitudinal direction of the side plate so as to correspond to the top and bottom of the front and rear widths of the scaffold. The vertical pieces are formed symmetrically at both ends of the side plate to correspond to the front and rear edges of the scaffold, and are formed in a rectangular parallelepiped shape with open fittings formed to correspond to the width of the scaffold, and the fittings are coupled to both left and right ends of the scaffold (10). The end cap 30 formed to be finished is formed to enable spot welding, and the cross section of the bent edge that is symmetrical before and after the scaffold 10 has one end of the edge side bent vertically at a right angle downward, and the end of the crust is bent. It is bent horizontally at a right angle to the inside of the lower part where this reinforcing rib is formed, and the horizontally right angle-bent end is bent 180 degrees to the side that is vertically bent at a right angle and overlaps, and the horizontally right angle-bent end is bent at a vertical right angle and overlaps. An arc-shaped anti-deformation banding portion 12 is formed to prevent horizontal deformation, and the reinforcement 20 is in contact with the lower surface of the scaffold 10 so that the support piece 22 is tilted forward, backward, and left and right to enable spot welding. It is symmetrically formed, and a reinforcing long groove 24 is formed on one upper surface that is perpendicular to the edge by fitting between the edges, so as to strengthen the reinforcing force of the reinforcement against the vertical twisting of the edge, and the end cap 30 is turned over. Among the horizontal pieces 34 formed to correspond to the upper and lower sides of the front and rear widths of the scaffold body, the upper horizontal piece 34' in the flipped state is formed smaller than the lower horizontal piece 34 in the flipped state, forming a spot The welder's gun is formed so that the scaffold overlapping the lower horizontal piece can be inserted vertically into the lower surface in an inverted state, and a handle portion 36 is located in the center of the lower horizontal piece 34 in the inverted state. It is characterized by an incision being formed.

Meanwhile, the scaffold holder 210 is formed symmetrically back and forth on both sides of the turntable divided into front and rear halves, and includes a reinforcement bar 20 and an end cap ( The gun-and-grip and spot gun robot arms (310, 320) for spot welding (30) are rolled into a turntable divided into half within the working radius or rotation radius, and support the lower side of the inverted scaffold (10). , a footrest support portion 212 provided to be discharged; A width adjustment base 222 formed in a length corresponding to the longitudinal direction of the scaffold on a half turntable on one side of the scaffold support 212 is coupled to a rail block coupled to a rail coupled to the turntable, and a rail block A front and rear width adjustment unit 220 that moves back and forth along the rail to one side of the edge of the scaffold by means of a cylinder on the rail so that the width adjustment base 222 is adjusted to correspond to the front and rear width of the scaffold; One side is fixed on the turntable on the other side of the footrest support unit 212, which is the opposite side of the front and rear width adjustment unit 220, and the other side is fixed to move back and forth on the width adjustment base 222, and is moved up and down by a cylinder, and moves back and forth. A footrest clamp (230) that presses the upper front and rear edges of the footrest (10) by the unit clamp (232) in a state where the front and rear widths are adjusted by the width adjustment unit; A lifting cylinder 216 is coupled to the lower side of the footrest support 212, which is the central lower part of the half of the turntable divided into half, and the tip of the cylinder rod is coupled to the lower part of the footrest support 212, so that the footrest support moves up and down by the cylinder. It supports the upper plate of the flipped scaffold, and after assembly of the reinforcement 20 and the end cap 30 on the scaffold 10 is completed, the scaffold support 212 is attached to the scaffold 10 by the lifting cylinder 216. It is characterized in that it is formed by a lifting part 214 provided to move upward and discharge to the next process.

In addition, the reinforcement holder 240 is symmetrical front and rear on the turntable divided back and forth, and is symmetrical left and right on the side opposite to the first loader part of the half of the half turntable, and has a draw rail on one side of the turntable. (242) is symmetrical left and right, the draw cylinder (243) is coupled to the turntable so as to cross forward and backward on one side of the draw rail (242), and the draw rail block (244) moves by combining the rails on the draw rail (242). Draw means 241 is formed so that the draw cylinder 243 moves the draw rail block 244 left and right on the draw rail 242; Support members 246 are formed to stand on the left and right draw rail blocks 244 of the draw means 241, and a cylinder is formed outside the support member 246, so that the support member 246 is moved up and down by the cylinder. (246) is rotated from the upper side toward the scaffold 10, and a holding jig 247 for holding the reinforcement 20 is formed at the front end of the support member, and the holding jig 247 allows the reinforcement 20 to be held. It is characterized by being formed as a holder arm 245 with a pushing cylinder 248 formed on the upper side of the holding jig 247 to be released.

Furthermore, the end cap holder 250 is symmetrical front and rear on the turntable divided back and forth, and is symmetrical left and right on the first loader side and the opposite side of the portion corresponding to one half of the half turntable, with both left and right ends of the half turntable. A combined transfer rail 252 is formed from the center to the inside in the longitudinal direction, and a combined transfer block 253 that moves on the combined transfer rail 252 is provided, and the combined transfer block 253 moves the combined transfer rail 252. The left and right combined transfer rails 252 are formed symmetrically on the inside facing each other to move along the rail, and the pull cylinder 254, which is provided to move the combined transfer block on the combined transfer rail 252, is coupled to the turntable. (251) and; It is formed symmetrically on the left and right sides of the "T" shaped fixing piece 256 standing upright on the upper surface of the combined transfer block of the combination transfer unit 251, moves up and down by a cylinder, and rotates and returns at a right angle by the up and down movement. a holding clamp member 255 provided to hold and release the end cap 30; One side is coupled to the turntable on either the left or right side of the combined transport unit 251, and the other side is coupled to the front and rear width adjustment part 220 of the scaffold holder 210, and is attached to the holding clamp member 255. As a result, the end cap 30 moves vertically to both ends of the scaffold 10 and turns at a right angle, and the front and rear width adjusting portion 220 moves to the side of the end cap to a position that holds the left and right sides of the end cap 30. , a holding member 257 formed with a grip arm 258 that moves horizontally to the left and right sides of the end cap 30 by a cylinder and fixes it; The pull cylinder 254 of the combined transport unit 251 is moved up and down by a cylinder to prevent the end cap 30 from being pushed outward from the scaffold body 10 while moving to both ends of the scaffold body 10. A bracket 259 is formed.

Here, a marking hole 38 is formed between the hook holes 32 formed left and right symmetrically on the side plate of the end cap 30, and a marker is fitted into the marking hole 38 on the front side of the holding clamp member 255. It is preferable that the protrusions 260 are formed so that the determined position of the end cap 30 can be confirmed so that the end cap 30 is accurately fitted into the left and right ends of the scaffold body 10.

Meanwhile, the first fixed spot welding device 410 of the first increased welding unit 400 and the second fixed spot welding device 520 of the second increased welding unit 500 are solid state welding (SSW) pressure point welding devices. (Spot welding corresponds to pressure spot welding)).

Meanwhile, the first stall age 610 of the first cooling unit 600 and the second stall age 610' of the second cooling unit 600' are connected to the second stamping unit 500 or the CEO2 welding unit ( The welded portion of the scaffold or scaffolding safety scaffold heated by the welding delivered in 900) is cooled at room temperature to stabilize and is transferred one step at a time, wherein the first and second stall ages 610 and 610' 2. The cooling transfer members (620,620') include bed bases (622,622') formed long in the longitudinal direction; Front and rear transfer cylinders (632,632') are formed in the center of the bed base (622,622'), rails are formed on the left and right of the front and rear transfer cylinders to correspond to the length of the bed base (622,622'), and rail blocks coupled to the rails are formed. Front and rear transfer means (630,630') provided with transfer beds (634,634') formed on the lower surface; Vertical transfer cylinders (642,642') are formed on the upper surfaces of the transfer beds (634,634') of the forward and backward transfer means (630,630'), are moved up and down by the vertical transfer cylinders, and are fork-type transfer holders to move the safety scaffolding for scaffolding up and down. (644,644') are symmetrical left and right, and a plurality of one-step transfer units (640,640') are formed at equal intervals along the length of the bed base (622,622'); A plurality of safety scaffolding scaffolds are fixed at equal intervals on the upper surface of the bed base (622, 622') on the left and right sides of the one-step transfer units (640, 640') so that the safety scaffolding for scaffolding is moved one step at a time by the one-step transfer units (640, 640'). It is characterized by being formed of a fix holder (650, 650') provided so that the longitudinal direction of the safety scaffold for scaffolding is placed in a direction perpendicular to the transfer direction.

Here, the first and second stall ages (610, 610') are installed on the scaffolding or scaffolding safety scaffold placed on the fix holder (650, 650') formed at the tip of the second increase part 500 or the C.O.2 welding part 900. In order to transfer to the staff's fix stand, the vertical transfer cylinders (642,642') of the one-step transfer means (640,640') operate, and the fork-type transfer stand (644,644') touches the bottom surface of the scaffolding or scaffolding safety scaffold. The entire one-step transfer unit (640,640'), which is raised vertically and is composed of a plurality along the longitudinal direction of the bed base (622,622'), is moved along the rail by the forward and backward transfer cylinders (632,632') to the second increase unit (500) or Mr. After moving the scaffolding or scaffolding safety step by a one-step distance corresponding to the width of the scaffolding or scaffolding safety step from the fix holder (650,650') delivered from the O2 welding unit 900 to the next fixing holder, one-step At the moved position, the fork-type transfer holder (644,644') is released from contact with the scaffolding or safety scaffolding by the vertical transfer cylinder (643,642'), and is used as a scaffold on the fix stand (650,650') of the one-step transported distance. It continues to descend while putting down the safety step, and the entire one-step transfer unit (640, 640'), which is composed of a plurality of forward and backward transfer means (630, 630'), returns to its original position in the lowered state, and the scaffolding or scaffolding safety step is the above-described device. The entire one-step movement trajectory, which is transferred one step at a time by the 1st and 2nd stall ages (610,610'), is such that the fork-type transfer holders (644,644') of the one-step transfer units (640,640') rise vertically from the first fix holder - the next fix holder. It is characterized in that it operates in the order of the square trajectory of one-step horizontal movement (forward) - vertical descent - one-step horizontal movement to the first fix holder and return (backward).

Meanwhile, the safety step holder 810 is formed symmetrically back and forth on both sides of the turntable divided into front and rear halves, and is provided with a spot of the reinforcement 20 and the end cap 30 from the second loader unit 700 to the step body 10. In order to weld areas other than the welding area, the safety footplate placement unit (811) is inserted by rolling within the working radius or rotation radius of the CEO2 grip and the CEO2 robot arm (910), and is provided to support and discharge the lower side of the inverted scaffold. )and; A setup panel 813 formed with a length corresponding to the longitudinal direction of the scaffold on a half turntable on one side of the safety scaffold resting portion 811 is installed on one side of the edge of the scaffold by a cylinder on a rail coupled to the turntable. A boom control unit 812 that moves back and forth along and is adjusted to correspond to the front and rear width of the scaffolding body; One side is fixed on the turntable on the other side of the safety foot resting part 811, which is the opposite side of the width adjustment part 812, and the other side is fixed to move back and forth on the setup panel 813, which moves on a rail according to the width adjustment, and the cylinder A fixed clamp (814) that is operated up and down and pressurizes the front and rear edges of the footrest (10) and the upper sides of both ends of the end cap (30) by the unit clamp (815) while the front and rear widths are adjusted by the width adjustment unit (812). )and; A foot-up cylinder 817 is coupled to the lower side of the safety foot resting portion 811, which is the central lower part of the half of the turntable divided into half, and the tip of the cylinder rod is coupled to the lower part of the safety foot resting portion 811 to move up and down by the cylinder. The foot-up portion 816 is provided so that the safety step resting portion 811 is moved upward by the foot-up cylinder 817 on which the scaffold and end cap assembly has been completed through operation, and the scaffold is discharged by the safety step resting portion in the next process. It is characterized by being formed of and.

Furthermore, the hook holder 820 of the hook loading assembly is symmetrical to the left and right of the safety step holder 810 formed on one half of the turntable divided back and forth, and is provided with a hook transfer rail 832 to move left and right toward the safety step holder 810. ) and a hook transfer rail block 834 are provided, and the hook transfer rail block 834 is combined with the hook transfer cylinder 836 so that the hook transfer rail block 834 moves left and right according to the operation of the hook transfer cylinder. (836) is coupled to the turntable below the safety step holder 810, and a hook transfer means 830 is coupled to the holder fixing panel 838 on the upper side of the hook transfer rail block 834; A hook support bracket 842 is formed to be vertically erected and fixedly coupled to one side of the holder fixing panel 838 of the hook transport means 830, and a safety footrest is placed and fixed to the safety foothold holder 810 on the upper side of the hook support bracket. A hook insertion jig 844 is formed so that the hook 40 is placed on the same horizontal line as the hook hole 32 on one side of the end cap 30, and the hook insertion jig 844 is formed by a cylinder outside the hook support bracket 842. ) and a fixed hook holding portion 840 in which a hook holding piece 846 is formed to rotate toward the hook placed in the hook to hold the hook 40; A support bracket 852 is formed to be vertically erected and fixedly coupled to the outside of the center of the holder fixing panel 838 of the hook transfer means 830, and a width adjustment cylinder 858 is formed on the upper outer surface of the support bracket 852. The fixing hook is installed so that the width is adjusted according to the position of the hook hole 32 on the other side of the end cap 30 of the safety step fixed to one side of the cylinder rod of the width adjustment cylinder 858 in the safety step holder 810. The adjustment hook insertion jig 854 is formed so that the hook 40 is placed on the same horizontal line as the holding part 840, and the rotation operation is performed toward the hook placed in the adjustment hook insertion jig 854 by the cylinder outside the cylinder rod side. It is characterized in that it is formed by a width-adjustable hook holding portion 850 in which an adjustment hook holding piece 856 is formed to hold the hook 40.

Meanwhile, a SSW (Solid State Welding) pressure point is formed between the CYO2&Grip robot arm 910 of the CYO2 welding part 900 and the second stall age 620' of the second cooling part 600'. The third fixed spot welding device 930, in which a welding device (spot welding) is formed, is used to connect the reinforcement bar 20 and the end cap 30 that are missing spot welds through tack welding, the first additional welding section, and the second additional welding section. It is also desirable to further configure a 3rd welding unit 940 for additional spot welding of the spot welded area.

The present invention forms a reinforcement bar and an end cap to enable spot welding on a scaffold, which is a component of a safety scaffold for scaffolding, and improves welding quality by quickly welding the reinforcement bar and end cap through spot welding and minimizing contamination or defects in the welded area. This is possible, and the hooks are finally joined through CO ₂ welding to quickly and automatically produce safety scaffolding for scaffolding that can secure structural stability. This not only minimizes the movement lines between system devices in the automatic production line, but also configures safety scaffolding. In assembling the structure for this purpose, the entire process time, TAC time, is designed and configured to be reduced to the maximum through positioning that takes welding into consideration from the initial assembly, thereby reducing the overall TAC time and improving productivity through reinforcement bars and end caps excluding hooks. By joining through spot welding, surface contamination due to welding poop is minimized, which has the effect of improving product quality.

In addition, in the present invention, in the automatic welding system for producing safety scaffolding for scaffolding, the welding ratio of safety scaffolding for scaffolding through spot welding accounts for nearly half, so a large amount of carbon is generated as the entire manufacturing process is produced by CO ₂ welding. By significantly reducing the carbon generation rate through spot welding, there is an advantage in preventing air pollution and strengthening international competitiveness through manufacturing in accordance with international carbon reduction policies.

Figure 1 is an overall system diagram of the automatic welding system for safety scaffolding for scaffolding according to the present invention.
Figure 2 is an overall perspective view of the automatic welding system for safety scaffolding for scaffolding according to the present invention.
Figure 3 is a perspective view of the improved structure of the scaffold, reinforcement, and end cap for spot welding of the automatic welding system for scaffolding safety scaffold according to the present invention.
Figure 4 is a main view showing the spot welding state according to the improved structure of the scaffold, reinforcement, and end cap of the automatic welding system for scaffolding safety scaffold according to the present invention.
Figure 5 is a perspective view of the loading assembly part of the automatic welding system for scaffolding safety scaffolding according to the present invention.
Figure 6 is a perspective view of the scaffold holder of the automatic welding system for safety scaffolding for scaffolding according to the present invention.
Figure 7 is a perspective view of the reinforcement holder of the automatic welding system for safety scaffolding for scaffolding according to the present invention.
Figure 8 is a perspective view of the end cap holder of the automatic welding system for safety scaffolding for scaffolding according to the present invention.
Figure 9 is a perspective view of the first and second stall ages of the automatic welding system for safety scaffolding for scaffolding according to the present invention.
Figure 10 is an overall perspective view showing parts of the first and second cooling transfer members of the first and second stall ages of the automatic welding system for safety scaffolding for scaffolding according to the present invention.
Figure 11 is an exploded perspective view of the main portion of the first and second cooling transfer members of the automatic welding system for scaffolding safety scaffolding according to the present invention.
Figure 12 is a perspective view of the hook loading assembly part of the automatic welding system for safety scaffolding for scaffolding according to the present invention.
Figure 13 is a perspective view of the safety scaffold holder of the automatic welding system for safety scaffolding for scaffolding according to the present invention.
Figure 14 is a perspective view of the hook holder of the automatic welding system for safety scaffolding for scaffolding according to the present invention.
Figure 15 is an exploded perspective view of the main portion of the hook holder of the automatic welding system for scaffolding safety scaffolding according to the present invention.
Figure 16 is a plan view showing another embodiment of the automatic welding system for safety scaffolding for scaffolding according to the present invention.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and will be implemented in many different forms.

In this specification, the present embodiments are provided to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention. And the present invention is only defined by the scope of the claims. Accordingly, in some embodiments, well-known components, well-known operations and well-known techniques are not specifically described in order to avoid ambiguous interpretation of the present invention.

Like reference numerals refer to like elements throughout the specification. Also, the terms used (mentioned) in this specification are for describing embodiments and are in no way intended to limit the present invention. As used herein, singular forms also include plural forms, unless specifically stated otherwise in the context. Additionally, components and operations referred to as 'including (or, including)' do not exclude the presence or addition of one or more other components and operations.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used with meanings that can be commonly understood by those skilled in the art to which the present invention pertains. Additionally, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless they are defined.

Hereinafter, technical features according to embodiments of the automatic welding system for scaffolding safety scaffolding according to the present invention will be described in detail with reference to the attached drawings.

Figure 1 is an overall system diagram of the automatic welding system for scaffolding safety scaffolding according to the present invention, Figure 2 is an overall perspective view of the automatic welding system for scaffolding safety scaffolding according to the present invention, and Figure 3 is a safety scaffolding scaffolding system according to the present invention. It is a perspective view of the improved structure of the scaffold, reinforcement, and end cap for spot welding of the automatic welding system, and Figure 4 shows the improved structure of the scaffold, reinforcement, and end cap of the automatic welding system for safety scaffolding for scaffolding according to the present invention. It is a main part drawing showing the spot welding state according to the present invention, Figure 5 is a perspective view of the loading assembly part of the automatic welding system for safety scaffolding for scaffolding according to the present invention, and Figure 6 is a view of the scaffold holder of the automatic welding system for safety scaffolding for scaffolding according to the present invention. It is a perspective view, Figure 7 is a perspective view of the reinforcement holder of the automatic welding system for scaffolding safety scaffolding according to the present invention, Figure 8 is a perspective view of the end cap holder of the automatic welding system for scaffolding safety scaffolding according to the present invention, and Figure 9 is the present invention. It is a perspective view of the first and second stall ages of the automatic welding system for safety scaffolding for scaffolding according to the present invention, and Figure 10 shows the first and second cooling transfer members of the first and second stall ages of the automatic welding system for scaffolding safety scaffolding according to the present invention. It is an overall perspective view showing a part of, Figure 11 is an exploded perspective view of the main parts of the first and second cooling transfer members of the automatic welding system for scaffolding safety scaffolding according to the present invention, and Figure 12 is an automatic scaffolding safety scaffolding according to the present invention. It is a perspective view of the hook loading assembly part of the welding system, Figure 13 is a perspective view of the safety scaffold holder of the automatic welding system for safety scaffolding for scaffolding according to the present invention, and Figure 14 is a perspective view of the hook holder of the automatic welding system for scaffolding safety scaffolding according to the present invention. It is a perspective view, and Figure 15 is an exploded perspective view of the main part of the hook holder of the automatic welding system for scaffolding safety scaffolding according to the present invention, and Figure 16 is a plan view showing another embodiment of the automatic welding system for scaffolding safety scaffolding according to the present invention.

The automatic welding system for safety scaffolding for scaffolding according to the present invention reduces production time by automating the pre-welding assembly of the reinforcement and end caps on the scaffolding, which are components of safety scaffolding for scaffolding, and is formed to enable spot welding. Assembling and welding can be done simultaneously on a rotating turntable to improve welding quality through fast welding of reinforcement and end caps and minimizing contamination or defects in the welded area, thereby reducing TAC time and improving productivity. Hook assembly is also possible by assembling and welding on a turntable at the same time, thereby reducing TAC time. By designing and configuring it to maximize the TAC time required for the production of conventional safety scaffolds, productivity is improved and the durability of the safety scaffold is improved and welded. Surface contamination is minimized, and product quality can be improved through this. As shown in FIGS. 1 and 2, the overall system for automating the welding of the safety scaffold consists of a first loader unit 100 - a loading assembly unit ( 200) - Tack welding part (300) - 1st increasing part (400) - 2nd increasing part (500) - 1st cooling part (600) - 2nd loader part (700) - Hook loading assembly part (800) - C O2 welding section (900) - second cooling section (600') - Quick mass production is possible by automatically welding safety scaffolding for scaffolding through the painting and finishing process.

The first loader unit 100 is configured to input the scaffolding body 10, which is a component for producing safety scaffolding for scaffolding, into the loading assembly unit 200, which will be described later. ), the reinforcement bar (20), and the end cap (30) are manufactured by designing the spot welding area to enable spot welding, and the lower surface of the roll formed scaffold (10), which is designed to enable spot welding, faces upward. The loader idling 110 is provided so that the loader idling 110 is prepared to be turned over in a horizontal state and supplied horizontally by rollers to the loading assembly unit to be described later.

Here, the scaffold body 10 inserted into the first loader unit 100 is the same as the scaffold body constituting a normal safety scaffold, but the longitudinal edge side that is bent for horizontal reinforcement of the scaffold body 10 The part to be bent is formed to minimize deformation during the manufacturing process or the input process for welding.

In addition, the reinforcement bar 20 and the end cap 30 can be held in a configuration that can hold a separate configuration by manpower in the loading assembly, and a spot welding area is formed to enable spot welding, as shown in FIG. 3 in advance. As shown, fabricated.

In this way, the scaffold body 10, which has been improved to prevent deformation during the assembly process, the reinforcement bar 20, and the end cap 30, which have been improved for spot welding, have a basic configuration that is long in the longitudinal direction in the case of the scaffold body 10. The edge is bent to maintain horizontality, a number of holes and protrusions are perforated in the upper plate to drain and non-slip, and the upper plate is bent to overlap downward to form at least one reinforcing rib for horizontal reinforcement. For horizontal reinforcement, many ribs smaller than the reinforcing ribs are formed.

Here, the cross-section of the border, which is bent in the form of a curved border formed long in the longitudinal direction, has one end of the border side bent vertically at a right angle downward, and the bent end of the crust is bent horizontally at a right angle to the inside of the lower part where the reinforcing rib is formed. The tip that is bent at a right angle is bent 180 degrees to the side that is bent at a vertical right angle and overlaps, and the tip that is bent at a right angle horizontally is bent at a vertical right angle and an arc-shaped anti-deformation banding portion (12) is provided to prevent horizontal deformation of the overlapping bent part. By being prepared to be formed, deformation such as crushing or curling of the end during the process of being input from the first loading unit 100 to the loading assembly unit can be prevented.

Meanwhile, as shown in FIG. 3, looking at the improved structure by forming a spot welding configuration for spot welding of the reinforcement and the end cap on the scaffold 10, first, the reinforcement 20 is a structure of the scaffold 10. A support piece (22) is coupled to the lower side at a right angle in the longitudinal direction, has a typical configuration in which a reinforcing bar insertion groove is formed so as to be coupled without interference from the reinforcing ribs, and is in contact with the lower surface of the scaffold (10) to enable spot welding. ) is formed symmetrically forward and backward and left and right, and a reinforcing long groove 24 is formed on one upper surface where both ends are fitted between the edges and are orthogonal to strengthen the reinforcing force of the reinforcement against the vertical twisting of the edge.

Here, the support piece 22 is formed to protrude to the left and right outside on the lower surface of the scaffold 10, so that not only is sufficient spot welding space for the gun for spot welding secured without peripheral interference when the gun for spot welding is inserted. It is located on the same line as the welding area so that spot welding can be done easily and quickly. In other words, conventionally, there is no structure of a support piece in the reinforcement bar, so the contact part with the scaffold is linear rather than a surface, so there is no alternative other than 3D welding, which means that the reinforcement bar has a shape that causes a lot of interference with the surroundings. Because of this, the configuration of the support piece 22 was formed to improve quick spot welding.

In addition, in the case of the reinforcement groove 24, in order to further improve the strength of the reinforcement groove on the upper side of the reinforcement 20, that is, on the horizontal surface that becomes the bottom of the reinforcement when the scaffold is flipped back to its original state, the reinforcement groove 24 is installed. This plays that role.

In addition, the end cap 30 is provided with a side plate in which the hook hole 32 is formed symmetrically left and right, and horizontal pieces 34 are formed symmetrically in the longitudinal direction of the side plate so as to correspond to the upper and lower widths of the front and rear of the scaffold body. Vertical pieces are formed symmetrically at both ends of the side plate to correspond to the front and rear edges of the scaffold, and are formed in a rectangular parallelepiped shape with open fittings formed to correspond to the width of the scaffold, and the fittings are joined to both left and right ends of the scaffold (10) to form a finish. In the normal configuration of the end cap 30, the horizontal piece 34' on the upper side in the flipped state among the horizontal pieces 34 formed to correspond to the top and bottom of the front and rear widths of the scaffold in the flipped state to enable spot welding. It is formed to be smaller than the lower horizontal piece 34 in the flipped state so that the gun of the spot welder can be vertically inserted into the lower surface of the scaffold overlapping the lower horizontal piece in the flipped state. A handle portion 36 is cut in the center of the lower horizontal piece 34.

Here, the horizontal piece 34 of the end cap 30 was conventionally configured to have the same length, making it virtually impossible to access the gun for spot welding. This is a structure in which spot welding is difficult other than 3D welding, which is used in the present invention. As shown in Figures 3 and 4, the horizontal piece 34, which is an end cap component of the same length, is improved to be positioned on the upper side of the flipped scaffold (the lower side of the scaffold in the original state). The length of the scaffold is formed to be smaller in width than the horizontal piece on the lower side of the scaffold (in the original state, the upper side of the scaffold). Here, it is desirable to reduce the width of the horizontal piece 34 of the end cap 30 to a size that allows insertion of a gun for spot welding without interruption.

After preparing the improved scaffold body 10, reinforcement 20, and end cap 30 as described above, the improved scaffold of the present invention is applied to the loader idling 100 constituting the above-mentioned first loader unit 100. When the sieve 10 is placed in an inverted state with the upper part positioned at the lower part, as shown in FIGS. 1 and 2, the loading assembly 200 is smoothly moved through a sliding movement by a plurality of rollers constituting the loader idling 110. ) is input. Here, the loading assembly unit 200 is formed on a turntable (symbol omitted), and the turntable is divided into front and rear, so that the loading assembly unit 200 is formed symmetrically on the front and rear turntables, respectively, on a circular turntable. . This is to minimize the TAC time of the entire process by discharging it immediately after assembling the reinforcement and end cap on the scaffold 10 and shortening the time for delivery to the next process. The assembled scaffold is 180 degrees by a ten table. As it rotates, it is immediately positioned in the next process, the first part, to be welded.

The loading assembly unit 200 is installed at the front and rear of the scaffold holder 210, as shown in FIGS. 4 and 5, after the scaffold 10 supplied from the first loader unit 100 is positioned. It is adjusted to correspond to the width of the scaffold by the width adjustment unit 220, and the longitudinal edge of the scaffold is fixed up and down by the scaffold clamp 230 to prevent movement. This is to prevent the installation position of the reinforcement from changing due to changes in the original position of the scaffold during the sliding movement process by fitting the reinforcement, which will be described later, between the lower surface of the scaffold and the bent edge, and to ensure accurate welding during the welding process.

Thereafter, the reinforcing bar 20 and the end cap 30 are supplied to the loading assembly unit 200 through manpower or a separate input device, and the reinforcing bar is held in the reinforcing bar holder 240, and then the scaffolding body 10 It rotates on the same plane as the lower surface of both ends of the scaffold from the upper side of both left and right ends and moves to the lower surface of both left and right ends of the scaffold, and the reinforcement holder 240 moves the reinforcement bar on the lower surface of the scaffold 10 by the draw cylinder. Move horizontally inward and fit together.

Here, the reinforcing bar holder 240 is configured to fix the reinforcing bar and fit the reinforcing bar to the scaffold. As shown in FIGS. 4 and 6, the scaffolding support portion 212, the front and rear width adjustment portion 220, It consists of a footrest clamp (230) and a lifting part (241).

The scaffold support unit 212 is provided to support the scaffold 10 introduced from the loader idling 110, and when the scaffold 10 is turned upside down from the first loader unit 100, the reinforcement bar 20 and The gun and grip and spot gun for spot welding of the end cap (30) are rolled into a turntable divided into half within the working or rotating radius of the robot arm (310, 320), and the lower side of the inverted scaffold (10) It supports and is arranged to be discharged to the next process after welding the spot welding area through the first increaser, which will be described later.

The front and rear width adjustment unit 220 sets one side of the scaffold 10 as a fixed reference for the width in the direction perpendicular to the longitudinal direction of the scaffold 10, and allows the other side to move to fix the scaffold. The reinforcing bar 20 and the end cap 30 are provided to be adjusted to a position where they can be coupled to the scaffold, and are positioned at a length corresponding to the longitudinal direction of the scaffold on the half turntable partitioned on one side of the scaffold support 212. The formed width-adjustable base 222 is coupled to a rail block coupled to a rail coupled to a turntable, and the rail block moves back and forth along the rail to one side of the edge of the scaffold by a cylinder on the rail to form the width-adjustable base 222. It is adjusted to correspond to the front and rear width of the scaffold.

The scaffold clamp 230 is provided to ensure that the scaffold body 10 is fixed without moving and that the position where spot welding is performed by the first additional hammering part, which will be described later, is always accurately positioned, and one side is opposite to the front and rear width adjustment unit 220. It is fixed on the turntable on the other side of the footrest support portion 212, and the other side is fixed to move back and forth on the width adjustment base 222, and is moved up and down by a cylinder, and the front and rear widths are adjusted by the front and rear width adjusting units. It is provided to press the upper side of the front and rear edges of the scaffold body 10 by the unit clamp 232.

Here, looking at the operating relationship of the footrest clamp 230, one side is fixed on the turntable and the other side is fixed on the width adjustment base 222, and the foothold clamp fixed on the width adjustment base is It moves back and forth to the edge of the scaffold 10, but when the cylinder does not operate, the unit clamp 232 is formed to face upward at the tip of the rod. However, when the cylinder operates and the rod rises vertically, the unit clamp 232 One side rises vertically based on a bracket (symbol omitted) that serves as a turning standard like a seesaw, and the other side is in contact with the edge of the scaffold (10), and the cylinder acts as a force to continuously raise the rod vertically. The edge of the sieve (10) is pressed so that it is fixed without movement or movement. The scaffold clamp 230 corresponds to the longitudinal direction of the scaffold 10, that is, if the length is long, there may be a problem of it flowing to one side, so the scaffold 10 is clamped by a plurality of scaffold clamps 230. It will be fixed.

The lifting unit 214 uses a gun-and-grip robot arm in the process of transporting the assembled scaffold, reinforcement, and end cap by spot welding at a tack welding unit 300, which will be described later, and then transferring it to the first increase unit 400. It is formed to be easily held and discharged to the next process, and a lifting cylinder 216 is coupled to the lower side of the footrest support portion 212, which is the central lower part of the half of the turntable divided in half, and the tip of the cylinder rod is attached to the footrest support portion 212. ) It is coupled to the lower part and moves up and down by the cylinder to support the upper plate of the overturned scaffold, and after assembly of the reinforcement 20 and the end cap 30 on the scaffold 10 is completed, the lifting cylinder 216 The scaffold support 212 is provided to move the scaffold body 10 upward and discharge it to the next process.

On the other hand, the end cap holder 250 is provided to complete assembly by holding end caps coupled to the left and right ends, which are the longitudinal ends of the scaffold 10, and quickly attaching them to both left and right ends of the scaffold. 10) After holding the end cap 30 on the end cap holder 250, which rises vertically from the bottom of the left and right ends toward the scaffold and rotates at a right angle to the left and right both ends of the scaffold, the end cap 30 is held by the end cap holder 250. ) is located facing both left and right ends of the scaffold, and the end cap holder 250 is configured to fit the end cap 30 to both left and right ends of the scaffold by a pull cylinder, so that it is symmetrical forward and backward on the turntable divided front and rear. is formed

The end cap holder 250 is symmetrical front and rear on the turntable divided back and forth, and is symmetrical on the side opposite to the first loader part of the half of the turntable, as shown in Figures 4 and 7. As shown, it consists of a combined transfer unit 251, a holding clamp member 255, a gripping member 257, and a draw bracket 259.

The coupling transfer unit 251 is provided to fit the end cap 30 held on the holding clamp member, which will be described later, to the left and right ends of the scaffold 10 by transporting the end cap as it is held in the holding clamp member, A combined transfer rail 252 is formed in the longitudinal direction from the center of both left and right ends of the half turntable, and a combined transfer block 253 that moves on the combined transfer rail 252 is provided, and the combined transfer block 253 performs combined transfer. The left and right combined transfer rails 252 are formed symmetrically on the inside facing each other so that the left and right combined transfer rails 252 can move along the rail 252, and the pull cylinder 254, which is provided to move the combined transfer block on the combined transfer rail 252, is placed on the turntable. are combined.

After fixing the end cap 30, the holding clamp member 255 moves vertically and pivots so that the open portion of the end cap 30 is positioned in the direction facing the left and right ends of the scaffold 10, respectively, It is operated to look at both the left and right ends of the scaffold, and is symmetrically formed on the left and right of the "T" shaped fixing piece 256 standing on the upper surface of the combined transfer block of the combination transfer unit 251, and moves up and down by the cylinder. , It is provided to hold and release the end cap 30 while rotating and returning to a right angle by moving up and down.

The holding member 257 is configured to hold the left and right sides on which the vertical pieces of the end cap are formed to prevent deformation such as bending of the left and right sides during the process of coupling the end cap to the scaffold and to position it in the correct position. One side is provided with the coupling transfer unit ( 251), the other side is coupled to the front and rear width adjustment portion 220 of the scaffold holder 210, and the end cap 30 is formed by the holding clamp member 255. The front and rear width adjusting part 220 moves to the side of the end cap to a position that holds the left and right sides of the end cap 30 in a state in which the footrest 10 moves vertically to both ends and turns at a right angle, and the end cap (220) is moved to the side of the end cap by the cylinder. A grip arm 258 is formed that moves horizontally to the left and right sides of 30) and fixes it.

The draw bracket 259 is provided to interact with the action of the pull cylinder described above. If the holding clamp member 255 by the pull cylinder serves to pull toward the scaffold along the rail, the draw bracket 259 pushes. It is configured to perform its role. That is, the end cap 30 moves up and down on one side of the pull cylinder 254 of the combined transport unit 251 by the cylinder to prevent the end cap 30 from being pushed to the outside of the scaffold 10 in the process of moving to both ends of the scaffold 10. A draw bracket 259 is formed.

That is, the end cap holder 250 operates the combined transfer block 253 along the combined transfer rail by the pull cylinder 254 constituting the combined transfer unit 251, and is a holding device coupled to the combined transfer block 253. The upper and lower horizontal pieces of the end cap are grasped and fixed by the clamp member 255, and the left and right vertical pieces are held and fixed by the grip arm 258 of the holding member 257 to correspond to the width of the end cap. , the pull cylinder 254 pulls the combined transfer block 253 toward the pull cylinder, so that the end caps are fitted to each end of the scaffold body while approaching each other. When the pull cylinder operates and the combined transfer block 253 is pulled to both ends of the scaffold body, the grip arm 258 of the holding member 257 is released from the left and right vertical pieces of the end cap 30 and is coupled to the scaffold body.

Meanwhile, a marking hole 38 is formed between the hook holes 32 formed left and right symmetrically on the side plate of the end cap 30, and a marker is fitted into the marking hole 38 on the front side of the holding clamp member 255. It is preferable that the protrusions 260 are formed so that the determined position of the end cap 30 can be confirmed so that the end cap 30 is accurately fitted into the left and right ends of the scaffold body 10. That is, as the marking hole 38 and the marker projection 260 are formed, the position where the marker projection is fitted into the marking hole does not need to be set to the basic position of the coupling position with the scaffold relative to the width of the end cap. This becomes the default position for adjustments. In addition, it can serve as a standard for the connection relationship of the hook, which will be described later, and can shorten the time for selecting the position of the end cap.

The reinforcement 20 and the end cap 30 are fitted to the scaffold 10 as described above, and the holder holding each component is the scaffold 10, the reinforcement 20, and the end cap 30. While maintaining the fixed state to prevent positional changes, the turntable is rotated 180 degrees and positioned for the next process, the welding unit 300. The opposite side according to the 180-degree rotation is again positioned as the loading assembly unit 200, receives the scaffolding body 10 from the first loader unit 100, and repeats the same process as the previous process.

That is, the scaffold 10 assembled in the tack welding unit 300 stage by rotating the turntable 180 degrees in a fixed state without the need to separately transport the scaffold 10 with the reinforcement bar and end cap assembled to the tack welding unit 300. As is located, the transfer time of the scaffold can be shortened, thereby reducing the overall TAC time.

The tack welding portion 300 is provided to maintain the assembled state by spot welding the spot welding portions of the reinforcement bar and the end cap after the scaffold 10 assembled with the reinforcement bar and the end cap is rotated 180 degrees by a turntable. In this way, in a state in which the scaffolding body 10, the reinforcement bar 20, and the end cap 30 inserted into the loading assembly unit on the first loader unit 100 side among the loading assembly units 200 formed symmetrically around the turntable are combined. The turntable is positioned by rotating 180 degrees, and the gun-and-grip robot arm 310, which performs a grip function to grip and move the spot welding gun and the scaffold, is provided in front of the turntable and is attached to the scaffold 10 on the turntable, which is pivotably operated. The combined reinforcement bar (20) is welded to a part of the spot welded area of the reinforcement bar so that the assembled position is not changed by spot welding, and the spot gun robot arm (320) equipped with a spot welding gun is attached to the outside of the turntable at both ends of the scaffold (10). A portion of the spot welded portion of the end cap 30 is tack-welded by spot welding to maintain the coupling position of the end cap 30, which is provided symmetrically left and right and coupled to both ends of the scaffold.

That is, the spot welding in the tack welding portion 300 is intended to maintain the assembled state of the scaffold, reinforcement, and end cap to proceed to the next process. In the process of proceeding to the next process, the assembled part may be twisted or separated. This is to prevent a possible phenomenon.

Here, each spot welded portion is a support piece (22) symmetrically formed left and right and front and back in the case of the reinforcement, and the end cap is a horizontal piece (34) and a vertical piece on the side, and the spot gun robot arm (320) is symmetrically formed to the left and right of the ten table. ), as shown in Figure 4, the side forming the horizontal and vertical pieces of the end cap 30 located on the bottom of the scaffold is spot welded to be coupled to the scaffold 10, and the gun and grip robot arm (310) is spot welded to the support piece 22 of the reinforcement 20 corresponding to the lower surface of the scaffold. In addition, since spot welding cannot be done entirely at once, the spot welding portion is welded in a position where the gun for spot welding can be inserted vertically up and down.

For example, the vertical side forming the side of the end cap 30 is spot welded to the bent edge of the scaffold and the horizontal piece 34 located on the bottom of the scaffold 10, which is in the flipped state. The upper horizontal piece 34 of the end cap coupled to the scaffold is formed short to allow insertion of a gun for spot welding, so spot welding of the side and bottom horizontal pieces is possible. Furthermore, the support piece 22 of the reinforcement 20 is a gun for spot welding because the gun for spot welding of the gun and grip robot arm 310 can weld the left and right sides of the support piece at the position where the footrest and the support piece are perpendicular. Since the tack welding part is not performed at a position that is vertical and is not inserted, spot welding of the spot welding area can be completed through the first and second additional hammering parts, which will be described later.

In other words, the first and second expansion parts are designed to secure the designed strength, specifications, and durability by filling the spot welding area for joining the reinforcement bar and the end cap to the scaffold 10 with basic spot welding water. If it is not filled and welded in the designed state, problems may occur in the durability or safety of scaffolding safety scaffolding, so this is to ensure safety along with welding according to the basic spot welding required for spot welding. In conventional linear welding, CYO2 welding, if the welded part is not welded, it must be re-welded, so spot welding must also be produced without any unwelded parts in order to provide safety and structural rigidity to ensure product quality.

Accordingly, as shown in Figures 1 and 2, the first additional welding part 400, as mentioned above, additionally welds the spot welded part that is not welded in the tack welding part 300, and the gun and grip robot arm A first fixed spot welding device within the rotation radius of the gun-and-grip robot arm 310 that rotates by holding the scaffold 10 tack-welded with a portion of the spot welded portion of the reinforcement 20 and the end cap 30 by (310). For reinforcement and additional spot welding in spot welded areas other than the tack-welded portion of the reinforcement bar 20 and the end cap 30 of the scaffold 10 where (410) is located and held by the gun and grip robot arm 310. As the scaffolding body (10) moves in a gripped state along the rotation radius of the gun and grip robot arm (310), the reinforcing bar (20) and the end cap (30) are additionally spot welded except for the welded portion in the tack welding portion (300). It is added through the first fixed spot welding device 410, and the added scaffold 10 continues to rotate in the broken state by the gun-and-grip robot arm 310 and is placed on the idling bed 420 in a standby state. It is located toward the welding portion 300.

The second additional hammering portion 500 completes the spot welding by spot welding the remaining portion that was not spot-welded through the tack welding portion 300 and the first additional hammering portion 400, centered on the idling bed 420. A grip robot arm 510 is provided at a point symmetrical to the gun-and-grip robot arm 310 of the welding part 300, and the grip robot is positioned on one side of the first fixed spot welding device 410 of the first welding part 400. The second fixed spot welding device 520 is located within the rotation radius of the arm 510, and the scaffolding body waits on the idling bed 420 of the first increase unit 400 by the grip robot arm 510. While holding (10) and moving to the second fixed spot welding device 520 along the rotation radius of the grip robot arm 510, the reinforcement 20 and the end cap 30 of the scaffold 10 are connected to the welding portion 300. ) and additional spot welding is performed on the spot welded areas that were not spot welded in the first enlargement unit 400, and as the spot welding is completed, the grip robot arm 510 moves to the next process along the rotation radius, and then the idling bed 420 It is arranged to be located on the side.

Meanwhile, the first fixed spot welding device 410 of the first additional hammering unit 400 and the second fixed spot welding device 520 of the second additional hammering unit 500 are SSW (Solid State Welding; pressure point welding). It is desirable to have a device (spot welding is equivalent to pressure spot welding).

As shown in FIGS. 1 and 2, the first cooling unit 600 is a scaffold body 10 in which the reinforcing bar and the end cap are spot welded to the scaffold body 10 through the second expansion unit 500. In the process of receiving and moving to the next process, the scaffolding (10), reinforcement (20), and end cap (30) heated by spot welding are gradually cooled at room temperature to minimize deformation of the welded area and stabilize it. After the spot welding of the spot welding portion of the reinforcement bar 10 and the end cap 30 coupled to the scaffold 10 is completed through the second reinforcement unit 500, the grip robot arm 510 continues along the rotation radius. ) is placed on the first stall age 610 formed with a first cooling transfer member 620, which is provided to move up and down and forward and backward in the front longitudinal direction within the rotation radius in which the scaffold body moves, and the first cooling transfer member As the scaffold 10 moves forward one step at a time by (620), the welded portions of the scaffold 10, the reinforcement 20, and the end cap 30 heated by spot welding are cooled to room temperature to stabilize, At the point when cooling is completed, a conveyor 660 is formed to be continuous with the first stall age 610 so that the scaffold 10 is transported by the conveyor 660.

The scaffolding body 10 with the reinforcing bar and end cap spot-welded transported through the conveyor 660 of the first cooling unit 600 is transferred to the second loader idling 710, and is transferred to the second loader idling 710. The scaffold body 10 is provided with a second loader unit so that it can be input into the hook assembly process.

Here, as mentioned above, the second loader unit 700 moves the scaffold body 10, whose spot welding area has been stabilized through room temperature cooling, to standby so that the scaffold body 10 supplied is moved through the conveyor 660. After the second loader idling 710 is provided and the scaffolding body 10, which is spot-welded and joined to the spot welded portion of the reinforcement bar 20 and the end cap 30, is placed on the second loader idling 710, a hook to be described later is installed. It is prepared to be input into the loading assembly unit 800.

The hook loading assembly unit 800 is configured to load and position the scaffold body 10 to which the reinforcement bar 20 and the end cap 30 are spot-welded from the second loader unit 700, and then install the safety scaffold holder 810. ) to prevent flow by fixing both ends of the end cap coupled to the left and right ends of the scaffold 10 and the longitudinal edge of the width of the scaffold 10, and the end cap at the lower side of the left and right ends of the scaffold 10. After placing the hook 40 in the hook holder 820 whose left and right widths are adjusted according to the distance between the hook holes on the same line as the hook hole, the hook holder 820 inserts the rear end of the hook into the hook hole of the end cap by the hook cylinder. It is configured to be combined so that it is symmetrically formed front and rear on the turntable divided front and rear.

Here, the hook loading assembly unit 800 fixes the scaffold body 10 on which the reinforcement bar and the end cap are spot-welded by the safety scaffold holder 810, and fixes the hook 40 by the hook holder 820. It is provided to be fitted into the hook hole of the end cap, and as mentioned above, the safety foot holder 810 is formed symmetrically back and forth on both sides of the turntable divided into front and back halves, and as shown in Figures 12 and 13, It consists of a safety step resting part (811), a boom control part (812), a fixing clamp (814), and a put-up part (816).

The safety step resting part 811, like the footrest holder 210 of the loading assembly unit 200, fixes the foothold 10, in which a reinforcement bar and an end cap are combined, to facilitate CYO2 welding and Fuku assembly. In order to weld areas other than the spot welding portions of the reinforcement 20 and the end cap 30 to the scaffold 10 from the second loader unit 700, the Sio2 grip and the Sio2 robot arm 910 are used. It is inserted in a rolling motion within the working radius or rotation radius, supports the lower side of the scaffold in an overturned state, and is arranged to discharge the safety scaffold to the next process when the CYO2 welding is finally completed.

The width adjustment unit 812 is formed on a half turntable on one side of the safety footrest resting part 811, and a setup panel 813 formed to a length corresponding to the longitudinal direction of the footrest is formed by a cylinder on a rail coupled to the turntable. Move back and forth along the rail on one side of the edge of the scaffold to adjust it to correspond to the front and rear width of the scaffold.

One side of the fixing clamp 814 is fixed on the turntable on the other side of the safety step resting portion 811, which is the opposite side of the width adjustment portion 812, and the other side is fixed on the setup panel 813, which is moved by rail according to the width adjustment. It is fixed to move back and forth, and is operated up and down by a cylinder, and in a state where the front and rear widths are adjusted by the width adjustment part 812, the front and rear edges of the footrest 10 and the upper sides of both ends of the end cap 30 are clamped by unit clamps 815. It is formed to be pressed.

The foot-up portion 816 is a foot-up cylinder 817 coupled to the lower side of the safety step resting portion 811, which is the lower portion of the central side of the half of the turntable, and the cylinder rod tip is located below the safety step resting portion 811. The safety foot resting portion 811 is moved upward by the foot-up cylinder 817, and the scaffold body on which the reinforcement bar and end cap assembly is completed through the up and down operation by the cylinder is moved upward, and the scaffold body is discharged by the safety foot resting portion in the next process. It is prepared as much as possible. In other words, the put-up portion 816 is configured to discharge a safety footrest on which C-O2 welding has been completed, which will be described later.

When the scaffolding body 10 is fixed by the safety scaffolding holder 810 as described above, the hook 40 is horizontally moved in the hook hole 32 of the end cap 30 while the hook is fixed through the hook holder 820. and fit together.

Here, the hook holder 820 is composed of a hook transfer means 830, a fixed hook holding part 840, and a width-adjustable hook holding part 850, as shown in FIGS. 12, 14, and 15.

The hook transfer means 830 is provided so that the hook 40 is fitted into the hook hole 32 of the end cap, and is formed symmetrically on the left and right sides of the safety foot holder 810 formed on one half of the turntable divided into front and back. A hook transfer rail 832 and a hook transfer rail block 834 are provided to move left and right toward the safety step holder 810, and the hook transfer rail block 834 is combined with the hook transfer cylinder 836 to operate the hook transfer cylinder. Accordingly, the hook transfer cylinder 836 is coupled to the lower turntable of the safety step holder 810 so that the hook transfer rail block 834 moves left and right, and the holder fixing panel 838 is coupled to the upper side of the hook transfer rail block 834. do.

The configuration for fixing the hook 40 includes a fixed hook holding part 840 and a width-adjustable hook holding part 850. Here, the fixed hook holding part and the width-adjustable hook holding part have the same configuration for fixing the hook. The difference is that the fixed hook holding part maintains a fixed state based on one of the hook holes 32, and the remaining width-adjustable hook The holding portion 850 is provided to be adjusted according to the horizontal width distance from the hook hole 32, which serves as a reference.

Accordingly, the fixed hook holding part 840 is formed with a hook support bracket 842 that is vertically erected and fixedly coupled to one side of the holder fixing panel 838 of the hook transfer means 830, and a safety footrest holder is provided on the upper side of the hook support bracket. A hook insertion jig (844) is formed so that the hook (40) is placed on the same horizontal line as the hook hole (32) on one side of the end cap (30) of the safety step placed and fixed in (810), and a hook support bracket (842) is provided. A hook holding piece 846 is formed to hold the hook 40 by rotating it toward the hook placed in the hook insertion jig 844 by the cylinder.

The width-adjustable hook holding part 850 is formed with a support bracket 852 that is vertically erected and fixedly coupled to the outside of the center of the holder fixing panel 838 of the hook transfer means 830, and the upper outside of the support bracket 852 A width adjustment cylinder 858 is formed on the side, and a hook hole 32 on the other side of the end cap 30 of the safety step fixed to the safety step holder 810 is provided on one side of the cylinder rod of the width adjustment cylinder 858. An adjustment hook insertion jig 854 is formed so that the hook 40 is placed on the same horizontal line as the fixed hook holding portion 840 so that the width can be adjusted according to the position, and the adjustment hook insertion jig is adjusted by the cylinder to the outside of the cylinder rod side. An adjustment hook holding piece 856 is formed so as to hold the hook 40 by rotating it toward the hook placed in 854.

After the hook 40 is coupled to the hook hole 32 of the end cap 30 as described above, the scaffold body 10 is spot welded around the hook hole to which the hook is coupled, the reinforcement 20, and the end cap 30. ), except for the spot welding area, additional cohesion is secured through C-O2 welding to ensure durability and safety as well as structural rigidity.

As shown in FIGS. 1 and 2, the CEO2 welding portion 900 is formed symmetrically around the turntable front and rear, and the end cap 30 on the hook loading assembly side on the second loader portion 700 of the hook loading assembly portion 800 is formed symmetrically around the turntable. With the hook 40 coupled to the turntable, the turntable turns 180 degrees, and a C-O2 grip robot arm 910 is provided in front of the turntable, which performs a grip function that can grip and move the CO ₂ welder and safety scaffolding for scaffolding. The remaining section is welded to the welding area other than the spot welding area of the reinforcement bar (20) connected to the scaffold on the turntable operated in a pivoting manner, and the CIO2 robot arm (920) equipped with a CO ₂ welder is used to weld the scaffold (10). In addition to the spot welded portion of the end cap connected to both ends, the spot welded portion of the end cap 30, which is provided symmetrically on the outside of the turntable and coupled to both ends of the scaffold, is welded around the remaining section and the hook hole where the hook 40 is connected. Afterwards, the safety scaffold resting portion 811 rises vertically and discharges the welded scaffolding safety scaffold.

In the safety scaffolding for scaffolding on which spot welding and CIO2 welding have been completed as described above, the reinforcement bar (20), end cap (30), and hook (40) are welded to the scaffolding body (10) by the CIO2&Grip robot arm (910). The second cooling unit 600' holds the completed safety scaffolding for scaffolding and is located in the turning radius of the CEO2&Grip robot arm 910 on the front side of the turntable and moves up and down and forward and backward in the longitudinal direction of the front side. After placing the held scaffolding safety step on the second stall age 610' where the cooling transfer member 620' is formed, it returns to the CYO2 welding part 900 and is placed on the second cooling transfer member 620'. As the scaffolding safety scaffold moves one step forward, the welded area of the scaffolding safety scaffold heated by CYO2 welding is transferred while being cooled to room temperature to stabilize it.

Here, the first stall age 610 of the first cooling unit 600 and the second stall age 610' of the second cooling unit 600' are connected to the second stamping unit 500 or the CIO2 welding unit ( The welded portion of the scaffold or scaffolding safety scaffold heated by the welding delivered in 900) is cooled at room temperature to stabilize and is transferred one step at a time, wherein the first and second stall ages 610 and 610' 2 Cooling transfer members (620,620'), as shown in FIGS. 9 to 11, include a bed base (622,622'), front and rear transfer means (630,630'), one-step transfer units (640,640'), and fix holders (650,650'). It consists of

The bed bases 622 and 622' are formed long in the longitudinal direction corresponding to the minimum distance at which the scaffolding or safety scaffolding is cooled and stabilized to room temperature.

The front and rear transfer means (630, 630') have front and rear transfer cylinders (632, 632') formed at the center of the bed base (622, 622'), and rails on the left and right of the front and rear transfer cylinders are formed to correspond to the length of the bed base (622, 622'), A rail block coupled to the rail is provided with a transfer bed (634, 634') formed on the lower surface.

The one-step transfer unit (640, 640') has vertical transfer cylinders (642, 642') formed on the upper surface of the transfer bed (634, 634') of the front and rear transfer means (630, 630'), moves up and down by the vertical transfer cylinder, and is used for scaffolding. Fork-type transport stands (644, 644') are formed left and right symmetrically to move the safety footrest up and down, and a plurality of them are formed at equal intervals along the length of the bed base (622, 622').

The fix holder (650, 650') is located on the top of the bed base (622, 622') to the left and right outside of the one-step transfer unit (640, 640') so that the safety scaffolding for scaffolding is moved one step by one step by the one-step transfer unit (640, 640'). A plurality of scaffolding safety scaffolds are fixed at equal intervals on the surface so that the longitudinal direction of the scaffolding safety scaffold is placed in a direction perpendicular to the transport direction.

That is, the first and second stall ages (610, 610') are installed on the scaffolding or scaffolding safety scaffold placed on the fix holder (650, 650') formed at the tip of the second increase unit (500) or the C.O.2 welding part (900). In order to transfer to the staff's fix stand, the vertical transfer cylinders (642,642') of the one-step transfer means (640,640') operate, and the fork-type transfer stand (644,644') touches the bottom surface of the scaffolding or scaffolding safety scaffold. The entire one-step transfer unit (640,640'), which is raised vertically and is composed of a plurality along the longitudinal direction of the bed base (622,622'), is moved along the rail by the forward and backward transfer cylinders (632,632') to the second increase unit (500) or Mr. After moving the scaffolding or scaffolding safety step by a one-step distance corresponding to the width of the scaffolding or scaffolding safety step from the fix holder (650,650') delivered from the O2 welding unit 900 to the next fixing holder, one-step At the moved position, the fork-type transfer holder (644,644') is released from contact with the scaffolding or safety scaffolding by the vertical transfer cylinder (643,642'), and is used as a scaffold on the fix stand (650,650') of the one-step transported distance. It continues to descend while putting down the safety step, and the entire one-step transfer unit (640, 640'), which is composed of a plurality of forward and backward transfer means (630, 630'), returns to its original position in the lowered state, and the scaffolding or scaffolding safety step is the above-described device. The entire one-step movement trajectory, which is transferred one step at a time by the 1st and 2nd stall ages (610,610'), is such that the fork-type transfer holders (644,644') of the one-step transfer units (640,640') rise vertically from the first fix holder - the next fix holder. It is characterized in that it operates in the order of the square trajectory of one-step horizontal movement (forward) - vertical descent - one-step horizontal movement to the first fix holder and return (backward).

Afterwards, welding is completed through the second cooling unit 600' and the final supplied scaffolding safety scaffold is completed through a painting and finishing process.

Through this configuration, the safety scaffolding for scaffolding according to the present invention minimizes the input of manpower, preventing waste of labor costs due to unnecessary manpower, and assembly and welding through the ten table can be quickly performed only by changing the position without a transfer process, thereby improving the overall safety of the scaffolding. TAC time can be significantly reduced, shortening production time and increasing production efficiency, and it is possible to produce high-quality scaffolding safety scaffolding without safety accidents during the welding process.

In addition, it is possible to quickly produce a safety scaffold through structural design modification of the scaffold body (10), reinforcement (20), and end cap (30) that make up the safety scaffold to enable spot welding, as well as meeting the safety standards of the safety scaffold. By making it possible to produce products with structural rigidity superior to that of conventional safety scaffolds, it is possible to supply more stable safety scaffold products.

In other words, when the automatic welding system for the scaffolding safety scaffold is summarized, the scaffold body 10, the reinforcement bar 20, and the end cap 30 are assembled, and then tack welded by spot welding. At this time, the assembled scaffold can be quickly changed to a tack welded part through spot welding by rotating the turntable 180 degrees without a transport process, thereby reducing TAC time.

Afterwards, the parts that were not spot-welded in the tack joint are additionally welded through the first and second welding parts to ensure structural rigidity, and the deformation of the scaffold due to the heat generated during the spot welding process, deformation of the reinforcement, and end damage are prevented. In order to prevent deformation of the cap, the welded area is slowly cooled at room temperature and stabilized by moving in one step through the stall age of the first cooling section. After cooling, assemble the hook into the hook hole of the end cap at the hook loading assembly section for hook assembly. do.

Afterwards, the turntable rotates the position where the hook is assembled in the symmetrical hook loading assembly part on the turntable by 180 degrees, and the rest of the parts excluding the spot welding area are welded through the CYO2 welding part that is configured to enable CYO2 welding on the part whose position has changed. CYO2 welding produces the final scaffolding safety scaffolding. Afterwards, to prevent deformation due to the heat generated during the CEO2 welding process, it is moved one step at a time through the second stall age to cool to room temperature, and then transferred to the painting and finishing process to complete.

In other words, when looking at the above process, welding can be carried out directly in the next process by rotation by the turntable, shortening the TAC time in the part where it can be moved to the loading assembly and tack welding parts, and the rotation of the robot arm in the first and second increases. In addition to shortening the TAC time in the area where spot welding in the radius is quickly performed, the overall TAC time can be significantly shortened by shortening the TAC time due to the change in position on the turntable from the hook loading assembly to the C-O2 welding area. Through continuous assembly, welding, and transportation, the TAC time for producing one safety scaffold can be reduced, improving productivity and increasing efficiency.

Meanwhile, as shown in FIG. 16, SSW is installed between the CYO2&Grip robot arm 910 of the CYO2 welding part 900 and the second stall age 620' of the second cooling part 600'. (SSW; Solid State Welding; pressure point welding device (spot welding)) is installed to form a 3rd fixed spot welding device (930) to form a reinforcement bar (20) that is missing spot welding through tack welding, the first and second welding sections. ) and a third welding portion 940 that additionally spot welds the spot welding portion of the end cap 30.

In the above, the present invention has been described in detail as an embodiment, but the scope of the present invention is not limited thereto, and it is clear that many variations and modifications can be made by those skilled in the art within the scope of the technical idea, and the present invention It will be said to include the scope of substantial equivalence with the embodiment of. The technical features will be described in detail.

10: scaffold 12: bending part
20: reinforcement 22: support piece
24: Reinforcement groove 30: End cap
32: Hook hole 34: Horizontal piece
36: handle part 38: marking ball
40: hook
100: first loader unit 110: loader idling
200: loading assembly 210: scaffold holder
212: footrest support unit 214: lifting unit
216: lifting cylinder 220: front and rear width adjustment unit
222: Width adjustment base 230: Footrest clamp
232: unit clamp 240: reinforcement holder
241: draw means 242: draw rail
243: draw cylinder 244: draw rail block
245: Holder arm 246: Support member
247: Holding jig 248: Pushing cylinder
250: End cap holder 251: Combined transfer unit
252: Combined transfer rail 253: Combined transfer block
254: pull cylinder 255: holding clamp member
256: Fixed piece 257: Holding member
258: Grip arm 259: Draw bracket
260: Marker projection
300: Welding part 310: Gun and grip robot arm
320: Spot gun robot arm
400: 1st expansion unit 410: 1st fixed spot welding device
420: Idling bed
500: 2nd expansion unit 510: Grip robot arm
520: Second fixed spot welding device
600: first cooling unit 600': second cooling unit
610: 1st stall age 610': 2nd stall age
620: First cooling transfer member 620': Second cooling transfer member
622,622': Bed base 630,630': Forward and backward transportation means
632,632': Front and rear transfer cylinders 634,634': Transfer bed
640,640': One-step transfer unit 642,642': Vertical transfer cylinder
644,644': Transfer holder 650,650': Fix holder
660: Conveyor
700: 2nd loader unit 710: 2nd loader idling
800: Hook loading assembly 810: Safety footrest holder
811: Ministry of Safety and Security 812: Government of riot control
813: Setup panel 814: Fixed clamp
815: unit clamp 816: foot-up part
820: Hook holder 830: Hook transport means
832: Hook transfer rail 834: Hui transfer rail block
836: Hook transfer cylinder 838: Holder fixing panel
840: Fixed hook holding part 842: Hook support bracket
844: Hook insertion jig 846: Hook holding
850: Width adjustment hook holding part 852: Support bracket
854: Adjustment hook insertion jig 856: Adjustment hook holding piece
858: Width adjustment cylinder 900: CIO2 welding part
910: Cio2Grip Robot Arm 920: Cio2 Robot Arm
930: 3rd fixed spot welding device 940: 3rd increase unit

Claims (12)

In the automatic welding system for safety scaffolding for scaffolding,
Among the scaffolding safety scaffolds, the scaffolding (10), reinforcement (20), and end cap (30) are designed and manufactured with spot welding areas to enable spot welding, and are roll formed and designed to enable spot welding. A first loader unit 100 equipped with a loader idling 110 so that the lower surface of (10) is turned upside down and ready to be supplied horizontally by a roller;
After the scaffold 10 supplied from the first loader unit 100 is positioned, the width of the scaffold is adjusted by the front and rear width adjusting units 220 of the scaffold holder 210 and the scaffold clamp 230. After fixing the top and bottom of the longitudinal edge of the scaffold to prevent movement, and holding the reinforcement 20 in the reinforcement holder 240, the scaffold 10 is on the same level as the lower surface of both ends of the scaffold from the upper and left sides. It rotates and moves on the lower surfaces of both left and right ends of the scaffold, and the reinforcement holder 240 is fitted by the draw cylinder to horizontally move the reinforcement inward along the lower surface of the scaffold (10), and the scaffold ( 10) After holding the end cap 30 on the end cap holder 250, which rises vertically from the bottom of the left and right ends toward the scaffold and rotates at a right angle to the left and right both ends of the scaffold, the end cap 30 is held by the end cap holder 250. ) is located facing both left and right ends of the scaffold, and the end cap holder 250 is configured to fit the end cap 30 to both left and right ends of the scaffold by a pull cylinder, so that it is symmetrical forward and backward on the turntable divided front and rear. A loading assembly 200 formed;
Among the loading assemblies 200 formed symmetrically before and after the turntable, the turntable rotates 180 degrees with the scaffolding 10, reinforcement 20, and end cap 30 inserted into the loading assembly on the first loader 100 side. The gun-and-grip robot arm 310, which is positioned in a rotating position and performs a grip function that can hold and move the spot welding gun and the scaffold, is provided in front of the turntable, and is coupled to the scaffold 10 on the turntable, which is pivotably operated. (20) is tack welded to a part of the spot welded area of the reinforcement bar so that the assembled position is not changed by spot welding, and the spot gun robot arm (320) equipped with a spot welding gun is symmetrically left and right on the outside of the turntable at both ends of the scaffold (10). A tack welding portion 300 that is provided and tack welds a portion of the spot welded portion of the end cap 30 by spot welding to maintain the coupled position of the end cap 30 coupled to both ends of the scaffold;
The scaffold 10 tack-welded with a portion of the spot welded portion of the reinforcement 20 and the end cap 30 is held by the gun and grip robot arm 310 and is held within the rotation radius of the rotating gun and grip robot arm 310. 1 The fixed spot welding device 410 is located, and reinforcement and reinforcement are applied to the spot welded portion other than the tack-welded portion of the reinforcement bar 20 and the end cap 30 of the scaffold 10 held by the gun and grip robot arm 310. For additional spot welding, the scaffold 10 is moved in a held state along the rotation radius of the gun and grip robot arm 310, and the area where the reinforcement 20 and the end cap 30 are welded at the tack welding portion 300 Additional spot welding areas except for are added through the first fixed spot welding device 410, and the added scaffold body 10 continues to rotate in the broken state by the gun and grip robot arm 310 and is attached to the idling bed 420. a first tapping unit 400 that is placed in a standby state and positioned toward the tack welding unit 300;
A grip robot arm 510 is provided at a point symmetrical to the gun-and-grip robot arm 310 of the tack welding part 300 around the idling bed 420, and the first fixed spot welding of the first increase part 400 is performed. On one side of the device 410, a second fixed spot welding device 520 is located within the rotation radius of the grip robot arm 510, and the idling bed of the first increaser 400 is connected by the grip robot arm 510. (420) Holds the scaffolding body (10) waiting on the grip robot arm (510) and moves it to the second fixed spot welding device (520) along the rotation radius of the grip robot arm (510), while strengthening the reinforcement bar (20) and end of the scaffolding body (10). The cap 30 is additionally spot welded to the spot welded portions that were not spot welded in the tack welding portion 300 and the first additional welding portion 400, and as the spot welding is completed, the grip robot arm 510 is moved along the rotation radius to the next process. After moving, the second increase unit 500 is provided to be positioned toward the idling bed 420;
After the spot welding of the spot welding portion of the reinforcement bar 10 and the end cap 30 coupled to the scaffold 10 is completed through the second reinforcement unit 500, the grip robot arm 510 continues along the rotation radius. ) is placed on the first stall age 610 formed with a first cooling transfer member 620, which is provided to move up and down and forward and backward in the front longitudinal direction within the rotation radius in which the scaffold body moves, and the first cooling transfer member As the scaffold 10 moves forward one step at a time by (620), the welded portions of the scaffold 10, the reinforcement 20, and the end cap 30 heated by spot welding are cooled to room temperature to stabilize, When cooling is completed, a conveyor 660 is formed to be continuous with the first stall age 610, and a first cooling unit 600 is provided to transport the scaffold 10 by the conveyor 660;
The second loader idling 710 is provided so that the scaffold 10, whose spot welding area has been stabilized through room temperature cooling, is moved and supplied through the conveyor 660 to wait, so that the second loader idling 710 ) a second loader unit 700 on which the scaffold 10, which is spot-welded and joined to the spot welded portion of the reinforcement 20 and the end cap 30, is placed;
After the scaffolding body 10 having the reinforcement bar 20 and the end cap 30 spot-welded is loaded and positioned from the second loader unit 700, the scaffolding body 10 is held by the safety scaffolding holder 810. Flow is prevented by fixing both ends of the end caps coupled to both left and right ends and the longitudinal edge of the scaffold body width at the top and bottom, and according to the hook hole spacing on the same line as the hook hole of the end cap at the lower side of the left and right ends of the scaffold body (10). After the hook 40 is placed and held in the hook holder 820 whose left and right widths are adjusted, the hook holder 820 is configured to fit the rear end of the hook into the hook hole of the end cap by means of a hook cylinder, so that it is connected to the turntable divided into front and rear. A hook loading assembly 800 formed symmetrically forward and backward;
The turntable rotates 180 degrees while the hook 40 is coupled to the end cap 30 on the hook loading assembly side of the second loader unit 700 among the hook loading assemblies 800 formed symmetrically before and after the turntable, and CO ₂ The spot welding portion of the reinforcement bar (20) coupled to the scaffolding body on the turntable is provided in front of the turntable with a ceo-to-grip robot arm (910) that performs a grip function that can move by holding the safety scaffolding for the welding machine and scaffolding. The remaining sections are welded to other welding areas, and a CYO2 robot arm (920) equipped with a CO ₂ welder is provided symmetrically to the outside of the turntable in addition to the spot welding areas of the end caps attached to both ends of the scaffold (10). After welding the spot welding portion of the end cap 30 coupled to both ends of the sieve and the remaining section and the circumference of the hook hole where the hook 40 is coupled, the put-up cylinder of the foot-up portion 816 of the safety step holder 810 is operated. Accordingly, the safety scaffold resting portion 811 rises vertically, and the CYO2 welding portion 900 discharges the welded safety scaffolding for scaffolding;
The scaffolding safety scaffold in which the reinforcing bar 20, the end cap 30, and the hook 40 are welded to the scaffold 10 is held by the CYO2&Grip robot arm 910 of the CYO2 welding portion 900. , The second stall age (610') is formed with a second cooling transfer member (620') that is located on the front side of the turntable at the turning radius of the CEO2&Grip robot arm (910) and moves up and down and forward and backward in the front longitudinal direction. After placing the scaffolding safety step held on the CEO2 welding section 900, the scaffolding safety step moves forward one step by the second cooling transfer member 620' and is welded by CEO2 welding. a second cooling unit (600') provided to transport the heated scaffolding safety scaffold while cooling it to room temperature to stabilize the welded portion;
An automatic welding system for scaffolding safety scaffolding is provided to complete the welding process through the second cooling unit (600') and complete the painting and finishing process of the final supplied scaffolding safety scaffolding.
According to clause 1,
It is formed long in the longitudinal direction, and the edges are bent to maintain horizontality. A number of holes and protrusions are perforated on the top plate to drain and non-slip, and the top plate is bent to overlap downward to provide at least one reinforcement rib for horizontal reinforcement. A scaffold body (10) is formed with a plurality of ribs smaller than the reinforcing ribs for additional horizontal reinforcement, and a reinforcement bar that is coupled at a right angle to the lower side with respect to the longitudinal direction of the scaffold body (10) and is coupled without interference from the reinforcing ribs. A reinforcing bar 20 in which an insertion groove is formed and a side plate with left and right hook holes 32 are provided symmetrically, and horizontal pieces 34 are formed symmetrically in the longitudinal direction of the side plate to correspond to the upper and lower widths of the front and rear scaffold members, Vertical pieces are formed symmetrically at both ends of the side plate to correspond to the front and rear edges of the scaffold, and are formed in a rectangular parallelepiped shape with open fittings formed to correspond to the width of the scaffold, and the fittings are joined to both left and right ends of the scaffold (10) to finish. The end cap 30 is formed to enable spot welding,
The cross section of the bent edge that is symmetrical forward and backward of the footrest 10 has one end of the edge side bent vertically at a right angle downward, and the bent end of the crust is bent horizontally at a right angle to the inside of the lower part where the reinforcing rib is formed, and is bent at a right angle horizontally. The tip is bent 180 degrees to the side that is vertically bent at a right angle and overlaps, and an arc-shaped anti-deformation banding portion 12 is formed to prevent horizontal deformation of the overlapping bent portion by bending the horizontally right angle bended tip at a vertical right angle. become,
The reinforcement 20 is in contact with the lower surface of the scaffold 10, so that the support piece 22 is formed symmetrically front and back and left and right to enable spot welding, and both ends are fitted between the rims, so that the upper and lower surfaces of the rim are perpendicular to each other. A reinforcing groove 24 is formed to strengthen the reinforcing force of the reinforcement against distortion,
The end cap 30 is one of the horizontal pieces 34 formed to correspond to the upper and lower sides of the front and rear widths of the scaffold in an inverted state, and the horizontal piece 34' on the upper side in the inverted state is horizontal on the lower side in the inverted state. It is formed to be smaller than the piece 34 so that the gun of the spot welder can be vertically inserted into the lower surface of the scaffold overlapping the lower horizontal piece in an overturned state, and the lower horizontal piece 34 in the flipped state is formed. An automatic welding system for scaffolding safety scaffolding, characterized in that the handle part 36 is cut in the center.
According to clause 1,
The scaffold holder 210 is symmetrically formed front and rear on both sides of the turntable divided into front and rear halves,
The working radius of the gun and grip and spot gun robot arms 310 and 320 for spot welding the reinforcement 20 and the end cap 30 in a state where the scaffold 10 is turned upside down from the first loader unit 100. A footrest support portion 212 that is rolled into the turntable divided into half of the rotation radius, supports the lower side of the inverted footrest 10, and is provided to be discharged;
A width adjustment base 222 formed in a length corresponding to the longitudinal direction of the scaffold on a half turntable on one side of the scaffold support 212 is coupled to a rail block coupled to a rail coupled to the turntable, and a rail block A front and rear width adjustment unit 220 that moves back and forth along the rail to one side of the edge of the scaffold by means of a cylinder on the rail so that the width adjustment base 222 is adjusted to correspond to the front and rear width of the scaffold;
One side is fixed on the turntable on the other side of the footrest support unit 212, which is the opposite side of the front and rear width adjustment unit 220, and the other side is fixed to move back and forth on the width adjustment base 222, and is moved up and down by a cylinder, and moves back and forth. A footrest clamp (230) that presses the upper front and rear edges of the footrest (10) by the unit clamp (232) in a state where the front and rear widths are adjusted by the width adjustment unit;
A lifting cylinder 216 is coupled to the lower side of the footrest support 212, which is the central lower part of the half of the turntable divided into half, and the tip of the cylinder rod is coupled to the lower part of the footrest support 212, so that the footrest support moves up and down by the cylinder. It supports the upper plate of the flipped scaffold, and after assembly of the reinforcement 20 and the end cap 30 on the scaffold 10 is completed, the scaffold support 212 is attached to the scaffold 10 by the lifting cylinder 216. An automatic welding system for scaffolding safety scaffolding, characterized in that it is formed by a lifting part 214 that moves upward and discharges to the next process.
According to clause 1,
The reinforcement holder 240 is symmetrical front and rear on the turntable divided back and forth, and is symmetrical left and right on the side opposite to the first loader part of the half of the half turntable,
A draw rail 242 is formed left and right symmetrically on one side of the turntable, and a draw cylinder 243 is coupled to the turntable so as to cross back and forth on one side of the draw rail 242, and moves by combining the rails on the draw rail 242. A draw rail block 244 is formed, and the draw cylinder 243 includes a draw means 241 provided to move the draw rail block 244 left and right on the draw rail 242;
Support members 246 are formed to stand on the left and right draw rail blocks 244 of the draw means 241, and a cylinder is formed outside the support member 246, so that the support member 246 is moved up and down by the cylinder. (246) is rotated from the upper side toward the scaffold 10, and a holding jig 247 for holding the reinforcement 20 is formed at the front end of the support member, and the holding jig 247 allows the reinforcement 20 to be held. An automatic welding system for safety scaffolding for scaffolding, characterized in that it is formed by a holder arm (245) with a pushing cylinder (248) formed on the upper side of the holding jig (247) to be released.
According to clause 1,
The end cap holder 250 is symmetrical front and rear on the turntable divided back and forth, and is symmetrical left and right on the side opposite to the first loader part of the half of the half turntable,
A combined transfer rail 252 is formed in the longitudinal direction from the center of both left and right ends of the half turntable, and a combined transfer block 253 that moves on the combined transfer rail 252 is provided, and the combined transfer block 253 performs combined transfer. The left and right combined transfer rails 252 are formed symmetrically on the inside facing each other so that the left and right combined transfer rails 252 can move along the rail 252, and the pull cylinder 254, which is provided to move the combined transfer block on the combined transfer rail 252, is placed on the turntable. A combined combined transfer unit 251;
It is formed symmetrically on the left and right sides of the "T" shaped fixing piece 256 standing upright on the upper surface of the combined transfer block of the combination transfer unit 251, moves up and down by a cylinder, and rotates and returns at a right angle by the up and down movement. a holding clamp member 255 provided to hold and release the end cap 30;
One side is coupled to the turntable on either the left or right side of the combined transport unit 251, and the other side is coupled to the front and rear width adjustment part 220 of the scaffold holder 210, and is attached to the holding clamp member 255. As a result, the end cap 30 moves vertically to both ends of the scaffold 10 and turns at a right angle, and the front and rear width adjusting portion 220 moves to the side of the end cap to a position that holds the left and right sides of the end cap 30. , a holding member 257 formed with a grip arm 258 that moves horizontally to the left and right sides of the end cap 30 by a cylinder and fixes it;
The pull cylinder 254 of the combined transport unit 251 is moved up and down by a cylinder to prevent the end cap 30 from being pushed outward from the scaffold body 10 while moving to both ends of the scaffold body 10. An automatic welding system for safety scaffolding for scaffolding, characterized in that a bracket (259) is formed.
According to clause 5,
A marking hole 38 is formed between the hook holes 32 symmetrically formed on the side plate of the end cap 30,
A marker protrusion 260 is formed on the front side of the holding clamp member 255 and is fitted into the marking hole 38 so that the end cap 30 is accurately fitted into the left and right ends of the scaffold 10. An automatic welding system for safety scaffolding for scaffolding, characterized in that it is formed to confirm the decision position of.
According to clause 1,
The first fixed spot welding device 410 of the first additional hammering unit 400 and the second fixed spot welding device 520 of the second additional hammering unit 500 are solid state welding (SSW) pressure point welding devices (SSW). Spot welding is equivalent to pressure point welding)))) An automatic welding system for safety scaffolding for scaffolding.
According to clause 1,
The first stall age 610 of the first cooling unit 600 and the second stall age 610' of the second cooling unit 600' are connected to the second stamping unit 500 or the C-O2 welding unit 900. It is formed to be transferred one step at a time while cooling to room temperature to stabilize the welded area of the scaffold or safety scaffold for scaffolding heated by welding delivered from .
The first and second cooling transfer members (620,620') of the first and second stall ages (610,610') include bed bases (622,622') formed long in the longitudinal direction;
Front and rear transfer cylinders (632,632') are formed in the center of the bed base (622,622'), rails are formed on the left and right of the front and rear transfer cylinders to correspond to the length of the bed base (622,622'), and rail blocks coupled to the rails are formed. Front and rear transfer means (630,630') provided with transfer beds (634,634') formed on the lower surface;
Vertical transfer cylinders (642,642') are formed on the upper surfaces of the transfer beds (634,634') of the forward and backward transfer means (630,630'), are moved up and down by the vertical transfer cylinders, and are fork-type transfer holders to move the safety scaffolding for scaffolding up and down. (644,644') are symmetrical left and right, and a plurality of one-step transfer units (640,640') are formed at equal intervals along the length of the bed base (622,622');
A plurality of safety scaffolding scaffolds are fixed at equal intervals on the upper surface of the bed base (622, 622') on the left and right sides of the one-step transfer units (640, 640') so that the safety scaffolding for scaffolding is moved one step at a time by the one-step transfer units (640, 640'). An automatic welding system for scaffolding safety scaffolding, characterized in that it is formed of a fix holder (650, 650') provided so that the longitudinal direction of the scaffolding safety scaffolding is placed in a direction perpendicular to the transport direction.
According to clause 8,
The first and second stall ages (610, 610') are installed on the fixing holders (650, 650') formed at the tip of the second reinforcement unit (500) or the C.O.T. welding area (900), or a scaffolding safety scaffold for the next staff member. In order to transfer to the fix stand, the vertical transfer cylinders (642,642') of the one-step transfer means (640,640') operate so that the fork-type transfer stands (644,644') are vertical while touching the bottom surface of the scaffolding or scaffolding safety scaffold. The entire one-step transfer unit (640,640'), which is raised and is composed of a plurality along the longitudinal direction of the bed base (622,622'), is moved along the rail by the back and forth transfer cylinders (632,632') to the second increase unit (500) or the C.O.2 welding unit. After moving the scaffolding or scaffolding safety step by a one-step distance corresponding to the width of the scaffolding or scaffolding safety step from the fix holder (650, 650') transmitted at (900) to the next fixing holder, the one-step moved At this position, the fork-type transfer stand (644,644') is released from contact with the scaffold or scaffolding safety step by the vertical transfer cylinder (643,642'), and the scaffolding safety step is placed on the fix stand (650,650') at the one-step transported distance. It continues to descend while putting it down, and the entire one-step transfer unit (640, 640'), which is composed of a plurality of front and rear transfer means (630, 630'), returns to its original position in the lowered state,
The entire one-step movement trajectory in which the scaffolding or safety scaffolding is transported one step by step by the first and second stall ages 610 and 610' is determined by the fork-type transfer holders 644 and 644' of the one-step transfer units 640 and 640'. Scaffolding safety, which is characterized in that it operates in the following square trajectory order: vertical rise from the first fix holder - one-step horizontal movement (forward) to the next fix holder - vertical descent - one-step horizontal movement to the first fix holder and return (backward). Scaffolding automatic welding system.
According to clause 1,
The safety step holder 810 is symmetrically formed front and rear on both sides of the turntable divided into front and rear halves,
The working radius of the Cio2 grip and the Cio2 robot arm 910 to weld areas other than the spot welded portions of the reinforcement bar 20 and the end cap 30 from the second loader unit 700 to the scaffold 10. A safety step resting portion 811 that is inserted by rolling within the turning radius and is provided to support and discharge the lower side of the inverted step.
A setup panel 813 formed with a length corresponding to the longitudinal direction of the scaffold on a half turntable on one side of the safety scaffold resting portion 811 is installed on one side of the edge of the scaffold by a cylinder on a rail coupled to the turntable. A boom control unit 812 that moves back and forth along and is adjusted to correspond to the front and rear width of the scaffolding body;
One side is fixed on the turntable on the other side of the safety foot resting part 811, which is the opposite side of the width adjustment part 812, and the other side is fixed to move back and forth on the setup panel 813, which moves on a rail according to the width adjustment, and the cylinder A fixed clamp (814) that is operated up and down and pressurizes the front and rear edges of the footrest (10) and the upper sides of both ends of the end cap (30) by the unit clamp (815) while the front and rear widths are adjusted by the width adjustment unit (812). )and;
A foot-up cylinder 817 is coupled to the lower side of the safety foot resting portion 811, which is the central lower part of the half of the turntable divided into half, and the tip of the cylinder rod is coupled to the lower part of the safety foot resting portion 811 to move up and down by the cylinder. The foot-up portion 816 is provided so that the safety step resting portion 811 is moved upward by the foot-up cylinder 817 on which the scaffold and end cap assembly has been completed through operation, and the scaffold is discharged by the safety step resting portion in the next process. An automatic welding system for safety scaffolding for scaffolding, characterized in that it is formed of and.
According to clause 1,
The hook holder 820 of the hook loading assembly is
A hook transfer rail 832 and a hook transfer rail block 834 are provided symmetrically to the left and right of the safety step holder 810 formed on one half of the turntable divided back and forth, so as to move left and right toward the safety step holder 810, The hook transfer rail block 834 is combined with the hook transfer cylinder 836 so that the hook transfer rail block 834 moves left and right according to the operation of the hook transfer cylinder. A hook transfer means (830) coupled to the top of the hook transfer rail block (834) with a holder fixing panel (838) attached to the top of the hook transfer rail block (834);
A hook support bracket 842 is formed to be vertically erected and fixedly coupled to one side of the holder fixing panel 838 of the hook transport means 830, and a safety footrest is placed and fixed to the safety foothold holder 810 on the upper side of the hook support bracket. A hook insertion jig 844 is formed so that the hook 40 is placed on the same horizontal line as the hook hole 32 on one side of the end cap 30, and the hook insertion jig 844 is formed by a cylinder outside the hook support bracket 842. ) and a fixed hook holding portion 840 in which a hook holding piece 846 is formed to rotate toward the hook placed in the hook to hold the hook 40;
A support bracket 852 is formed to be vertically erected and fixedly coupled to the outside of the center of the holder fixing panel 838 of the hook transfer means 830, and a width adjustment cylinder 858 is formed on the upper outer surface of the support bracket 852. The fixing hook is installed so that the width is adjusted according to the position of the hook hole 32 on the other side of the end cap 30 of the safety step fixed to one side of the cylinder rod of the width adjustment cylinder 858 in the safety step holder 810. The adjustment hook insertion jig 854 is formed so that the hook 40 is placed on the same horizontal line as the holding part 840, and the rotation operation is performed toward the hook placed in the adjustment hook insertion jig 854 by the cylinder outside the cylinder rod side. An automatic welding system for safety scaffolding for scaffolding, characterized in that it is formed by a width-adjustable hook holding portion 850 in which an adjustable hook holding piece 856 is formed to hold the hook 40.
According to clause 1,
SSW (Solid State Welding; pressure point welding device) between the CYO2&Grip robot arm 910 of the CYO2 welding part 900 and the second stall age 620' of the second cooling part 600'. (Spot welding) is used to form a third fixed spot welding device (930) to perform tack welding, spot welding of the reinforcing bar (20) and the end cap (30) that are missing spot welds through the first and second addition parts. An automatic welding system for safety scaffolding for scaffolding, characterized in that it can further configure a tertiary increase part (940) for additional spot welding of the part.

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