A flexible welding tool for main column structure of elevator cage and welding construction method

Abstract

The present invention discloses a flexible welding tool and welding construction method for the main column structure of a hoist cage, comprising a welding positioner, a tooling quick-change mechanism, and a tooling platform for clamping and fixing the main column structure of the hoist cage, wherein the tooling quick-change mechanism can be disassembled at both ends of the tooling platform, and the tooling quick-change mechanisms at both ends of the tooling platform can be rotatably mounted on the welding positioner, and the two ends of the horizontal support frame can be rotatably mounted on the welding positioner through the tooling quick-change mechanism, and a plurality of detachable fixed positioning seats are arranged at intervals on the upper surface of the edge of the horizontal support frame, and a plurality of groups of movable clamping mechanisms that slide back and forth along the center direction of the horizontal support frame are symmetrically arranged on the inner side of the edge of the horizontal support frame, and the first fixed clamping mechanism is arranged on both ends of the fixed positioning seat. The present invention can quickly press and position the main column structure of the hoist cage inwardly and outwardly and at the top, and can quickly perform flipping construction welding.

Description

Technical Field

[0001] The invention relates to the technical field of construction elevator equipment, and in particular to a flexible welding tool for a main column structure of an elevator cage and a welding construction method. Background Art

[0002] As the number of super high-rise buildings increases, the construction tasks of high-rise buildings become increasingly arduous, so a variety of construction lifting machinery for transporting construction personnel and construction equipment has been developed and applied in large quantities. Construction elevators are construction machinery for vertical transportation of personnel and materials in high-rise building construction, which can significantly save man-hours and improve labor productivity. As an indispensable component of construction elevators, the cage plays a key role in the safety of people and goods carried. The cage of the existing elevator is welded by a variety of main column mechanisms, and multiple sets of welding tools need to be made, which makes the welding process and welding management relatively troublesome. Therefore, controlling the welding accuracy, geometric dimensions and shape of the cage is the key. At present, most cages are manufactured by positioning and welding parts into components, and then positioning and welding the components to form a whole. This manufacturing process is that one tool welding corresponds to one cage main column structure, and its welding process has low precision and large errors. Secondly, the welding tool has no flipping function, and it is inconvenient to weld the reverse side, which is time-consuming and labor-intensive, and reduces production efficiency. Demolding welding is prone to deformation, and multiple processing is prone to deformation and low production efficiency, and the requirements for manufacturing workers are also relatively high. Summary of the invention

[0003] The purpose of the present invention is to provide a flexible welding tool and welding method for the main column structure of the elevator cage. The present invention can quickly press and position the main column structure of the cage inside and outside and the top, and quickly perform flip construction welding. The welding of the tool of the present invention is simple, fast, time-saving and labor-saving. In order to achieve the above purpose, the present invention adopts the following technical effects:

[0004] According to one aspect of the present invention, a flexible welding tool for the main column structure of a lift cage is provided, comprising a welding positioner, a tooling quick-change mechanism and a tooling platform for clamping and fixing the main column structure of the cage, the tooling quick-change mechanism being removable at both ends of the tooling platform, the tooling quick-change mechanism at both ends of the tooling platform being rotatably mounted on the welding positioner, the tooling platform comprising a horizontal support frame, a fixed positioning seat, a movable clamping mechanism and a first fixed clamping mechanism, the two ends of the horizontal support frame being rotatably mounted on the welding positioner through the tooling quick-change mechanism, a plurality of detachable fixed positioning seats being laterally spaced apart on the upper surface of the edge of the horizontal support frame, a plurality of groups of movable clamping mechanisms that slide back and forth along the center direction of the horizontal support frame being symmetrically arranged on the inner side of the edge of the horizontal support frame, the first fixed clamping mechanism being arranged at both ends of the fixed positioning seat, the first fixed clamping mechanism extending horizontally and vertically from the outer edge of the horizontal support frame to the center.

[0005] The above scheme is further preferred, in which a reference positioning beam is transversely arranged on the upper surface of one end portion or both ends near the horizontal support base frame, and positioning support blocks are vertically arranged at both ends of the reference positioning beam, and a plurality of positioning screw holes are transversely penetrated on the positioning support block, and a reference positioning screw is threadedly connected to the inner surface of the positioning screw hole, and the reference positioning screw extends horizontally from the outside of the positioning support block and through the positioning screw hole toward the center direction of the horizontal support base frame.

[0006] The first fixed clamping mechanism and the movable clamping mechanism are arranged on the horizontal support frame in an alternating manner, and a guide wheel is provided on the fixed positioning seat and on the inner side of the horizontal support frame. The horizontal height of the guide wheel is lower than the horizontal plane height where the first fixed clamping mechanism is located. A second fixed clamping mechanism is provided on the outer side wall of the horizontal support frame outside the movable clamping mechanism, and the second fixed clamping mechanism is extended from the outer side of the horizontal support frame to the top of the movable clamping mechanism.

[0007] The above scheme is further preferred, the second fixed clamping mechanism comprises a fixing seat, a support column and a hinge seat, the fixing seat is slidably arranged on the outer walls of both sides of the horizontal support base frame, the fixing seat is fixedly connected to the outer wall of the horizontal support base frame by fastening bolts, the lower end of the support column is connected to the outer wall of the horizontal support base frame through the fixing seat, and the hinge seat is fixed on the top of the support column, and one or more first clamping rods are horizontally arranged between the lower end and the upper end of the support column, the first clamping rod horizontally movably passes through the support column, a first clamping block is arranged on the end of the first clamping rod on the inner side of the support column, a clamping movable arm is hinged on the hinge seat and rotates from the outer side of the horizontal support base frame to the inner side, a second clamping rod is movably connected to the free end of the clamping movable arm, and a second clamping block is arranged on the end of the second clamping rod on the inner side of the support column.

[0008] The above scheme is further preferred, wherein the first clamping rod is horizontally threaded and connected to the supporting column, and a first handle is provided on the end of the first clamping rod on the outer side of the supporting column; an internally threaded sleeve is provided at the free end of the clamping movable arm, and the internally threaded sleeve is threadedly connected in the internally threaded sleeve, and a second handle is provided on the end of the second clamping rod on the outer side of the supporting column.

[0009] The above scheme is further preferred, the tooling quick-change mechanism includes a bearing seat, a rotating disk, a connecting plate, a first connecting block and a second connecting block, the bearing seat is fixed on the welding positioner, and the connecting plates are respectively arranged on the side walls at both ends of the horizontal support frame, the side wall of the disk surface on one side of the rotating disk is connected to the bearing seat through a horizontal rotating shaft, and the side wall of the disk surface on the other side of the rotating disk is provided with a first clamping groove parallel to the end of the horizontal support frame, the first connecting block is fixedly connected to the first clamping groove of the rotating disk by bolts, and a second clamping groove is horizontally arranged on the connecting plate above the opposite side of the first clamping groove, the second clamping groove is relatively parallel to the first clamping groove in space, the second connecting block is fixedly connected to the second clamping groove of the connecting plate by bolts, and the first connecting block and the second connecting block are connected by a live knot bolt.

[0010] The above scheme is further preferred, that the movable clamping mechanism includes a supporting beam, a supporting plate, and a linear sliding guide rail, and multiple supporting beams are connected between the inner sides of the edges on both sides of the horizontal supporting frame, the supporting plates are fixed on the supporting beams, and linear sliding guide rails parallel to the supporting beams are arranged on the edge surfaces of both sides of the support plates, and clamping support seats are symmetrically fixed on both sides of the center of the support plate, and a positioning sliding guide plate is slidably arranged on the linear sliding guide rail between the clamping support seat and the edge of the support plate, and a connecting rod is hinged on the clamping support seat, which is transmission-connected to the positioning sliding guide plate, and one or more detachable first positioning pins are vertically penetrated through the center of the upper surface of the positioning sliding guide plate.

[0011] The above scheme is further preferred that a connecting head is provided on the end of the positioning sliding guide plate close to the clamping support seat side, and a movable connecting rod is hinged on the connecting head, one end of the connecting rod has an arc-shaped bending portion, and the other end of the connecting rod has a linear push rod portion, the end of the arc-shaped bending portion is hinged on the positioning sliding guide plate, one end of the movable connecting rod is hinged on the connecting head, and the other end of the movable connecting rod is hinged to the transition between the linear push rod portion and the arc-shaped bending portion; at least two positioning support ears are vertically provided on the upper surface of the positioning sliding guide plate close to the edge of the horizontal support base frame, and each positioning support ear is provided with a second positioning pin extending horizontally to the side of the edge of the horizontal support base frame.

[0012] The above scheme is further preferred that vertical support rods are arranged on both sides of the end of the positioning sliding guide plate near the edge of the horizontal support base frame, the lower end of the vertical support rod is vertically movably connected to the positioning sliding guide plate, and a third positioning pin is horizontally arranged at the upper end of the vertical support rod and extends horizontally to one side of the edge of the horizontal support base frame.

[0013] According to another aspect of the present invention, there is provided a welding construction method using a flexible welding tool for the main column structure of an elevator cage, which is characterized in that it includes the following steps: installing the front of the fixed cage main column structure on the tooling platform, contacting the two ends of the cage main column structure with the inner wall of the tooling quick-change mechanism to achieve the positioning of the two ends of the cage main column structure; clamping and positioning the outer side of the cage main column structure by a first fixed clamping mechanism; pushing the movable clamping mechanism to slide from the center of the horizontal support frame to the edges on both sides to clamp and position the inner side of the cage main column structure, and then using the second fixed clamping mechanism to The outer side and top of the main column structure of the cage are clamped, and the first fixed clamping mechanism is adjusted to clamp and position the outer side of the main column structure of the cage again; the preset welding points of the main column structure of the cage are welded and fixed by welding equipment, and welding is stopped after the pre-positioned workpiece is formed, and the welding positioner is started to drive the tooling quick-changing mechanism to rotate and flip the tooling platform in turn, and the welding equipment is used to weld the remaining preset welding points of the main column structure of the cage. After the welding is completed, wait for the main column structure of the cage to cool down, and then remove the connecting parts between the main column structure of the cage and the movable clamping mechanism, the second fixed clamping mechanism and the first fixed clamping mechanism in turn.

[0014] In summary, the present invention adopts the above technical solution, and the present invention has the following technical effects:

[0015] The flexible welding tooling of the present invention can be used for pressing the inside and outside and the top at the same time, can quickly clamp and position the cage column structure or other welding mold structure, and drive the tooling platform to flip the welding operation through the welding positioner. The welding tooling of the present invention can be quickly flipped and welded, and the tooling welding is simple, fast, time-saving and labor-saving; when the top clamping rod of the second fixed clamping mechanism is loosened, the movable clamping mechanism is pushed to separate it from the inner side of the cage main column structure, and the demoulding and disassembly of the cage main column structure can be quickly completed, thereby facilitating demoulding and taking out parts; when the tooling platform needs to be replaced, after the welding positioner drives the tooling platform to flip a certain angle, the first connecting block on the rotating disk and the second connecting block on the connecting plate slide relative to each other and disengage, so that the tooling platform can be quickly taken out for replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a flexible welding tool for the main column structure of a hoist cage of the present invention;

[0017] Figure 2 is a structural schematic diagram of a second fixing clamping mechanism of the present invention;

[0018] Figure 3 It is a schematic diagram of the installation structure of the tooling quick-change mechanism of the present invention;

[0019] Figure 4 It is a schematic diagram of the installation structure of the first connecting block and the second connecting block of the present invention;

[0020] Figure 5 is a schematic diagram of the structure of the second connection block of the present invention;

[0021] Figure 6 It is a side structural schematic diagram of the tooling quick-change mechanism of the present invention;

[0022] Figure 7 It is a structural schematic diagram of the movable clamping mechanism of the present invention;

[0023] Figure 8 is a side structural schematic diagram of the movable clamping mechanism of the present invention;

[0024] In the accompanying drawings, welding positioner 1, tooling quick change mechanism 3, tooling platform 2, horizontal support frame 20, fixed positioning seat 21, guide wheel 21a, movable clamping mechanism 22, first fixed clamping mechanism 23, reference positioning beam 24, positioning support block 25, positioning screw hole 26, quasi-positioning screw 27, second fixed clamping mechanism 28, positioning hole 210, positioning support plate 211, supporting beam 220, support plate 221, linear sliding guide rail 222, clamping support seat 223, positioning sliding guide plate 224, connector 224a, connecting rod 225, arc bending portion 225a, linear push rod portion 225b, first positioning pin 226, positioning support ear 227, second positioning pin 227a, vertical Straight support rod 227b, third positioning pin 227c, support base 230, clamping adjustment rod 23, clamping support pad 232, fixed seat 280, support column 281, hinged seat 282, first clamping rod 283, first handle 283a, first clamping block 284, clamping movable arm 285, second clamping rod 286, second handle 286a, second clamping block 287, internal threaded sleeve 288, bearing seat 301, horizontal rotation shaft 301a, rotating disk 302, connecting plate 303, first connecting block 304, second connecting block 305, first clamping groove 306, second clamping groove 307, live knot bolt 308, fastening nut 308a, limit blocking block 308b,. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are only for the purpose of enabling the reader to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

[0026] Combination Figure 1 As shown, a flexible welding tool for the main column structure of a hoist cage according to the present invention comprises a welding positioner 1, a tooling quick-change mechanism 3 and a tooling platform 2 for clamping and fixing the main column structure of the hoist cage, the tooling quick-change mechanism 3 can be removed at both ends of the tooling platform 2, the tooling quick-change mechanism 3 at both ends of the tooling platform 2 can be rotatably mounted on the welding positioner 1, the tooling platform 2 comprises a horizontal support frame 20, a fixed positioning seat 21, a movable clamping mechanism 22 and a first fixed clamping mechanism 23, the two ends of the horizontal support frame 20 can be rotatably mounted on the welding positioner 1 through the tooling quick-change mechanism 3, a plurality of detachable fixed positioning seats 21 are arranged at intervals on the upper surface of the edge of the horizontal support frame 20, a plurality of positioning holes 210 are arranged on the upper surface of the edge of the horizontal support frame 20, the fixed positioning seats 21 are fixed to the matching positioning holes 210 by bolts, and the fixed positioning seats 21 are fixed to the matching positioning holes 210 in the lateral direction on the opposite sides. A positioning support plate 211 is arranged between the fixed positioning seats 21, and a plurality of groups of movable clamping mechanisms 22 that slide back and forth along the center direction of the horizontal support base frame 20 are symmetrically arranged on the inner side of the edge of the horizontal support base frame 20. The first fixed clamping mechanism 23 is arranged on the fixed positioning seat 21, or a detachable first fixed clamping mechanism 23 is arranged on both end portions of the positioning support plate 211, so that the first fixed clamping mechanism 23 can be installed according to different workpiece sizes. The first fixed clamping mechanism 23 extends horizontally and vertically from the outer edge of the horizontal support base frame 20 to the center. The welding positioner 1 is connected to the tooling platform 2 through a tooling quick-change mechanism 3. After the tooling quick-change mechanism 3 and the tooling platform 2 are disassembled, different tooling platforms 2 can be installed on the tooling quick-change mechanism 3. The welding positioner 1 drives the tooling quick-change mechanism 3 and drives the tooling platform 2 to rotate 360° to complete the welding operation on the front, back or side.

[0027] In the present invention, combined with Figure 1As shown, a reference positioning beam 24 is horizontally arranged on the upper surface of one end or both ends of the horizontal support base frame 20, and positioning support blocks 25 are vertically arranged at both ends of the reference positioning beam 24. A plurality of positioning screw holes 26 are horizontally penetrated on the positioning support block 25, and a reference positioning screw rod 27 is threadedly connected in the positioning screw hole 26. The reference positioning screw rod 27 extends horizontally from the outside of the positioning support block 25 and through the positioning screw hole 26 toward the center direction of the horizontal support base frame 20. The reference positioning screw rod 27 is threadedly connected in the positioning support block 25, and the reference positioning screw rod 27 is threadedly connected in the positioning support block 25. By adjusting the reference positioning screw rod 26, the reference positioning screw rod 27 is adjusted to the position of the horizontal support base frame 20. The rod 27 moves toward the center direction of the horizontal support frame 20, so that the positioning extrusion block (not shown) on the reference positioning screw 27 is pressed into contact with the main column structure of the cage, thereby performing initial reference positioning on the end of the main column structure of the cage; the first fixed clamping mechanism 23 and the movable clamping mechanism 22 are arranged on the horizontal support frame 20 at intervals, and guide wheels 21a are provided at both ends of the fixed positioning seat 21 and on the inner side of the horizontal support frame 20, and the horizontal height of the guide wheel 21a is lower than the horizontal plane height where the first fixed clamping mechanism 23 is located. The reference positioning beam 24 and the guide wheel 210 are close to the same horizontal plane, which is convenient for the main column structure of the cage to move on the guide wheel 21a. A second fixed clamping mechanism 28 is arranged on the outer side wall of the horizontal support frame 20 outside the movable clamping mechanism 22. The second fixed clamping mechanism 28 is from the outer side of the horizontal support frame 20 to the upper side of the movable clamping mechanism 22. The first fixed clamping mechanism 23 includes a support base 230 and a clamping adjustment rod 231 threadedly connected to the support base 230. The support base 230 is fixed on the On the fixed positioning seat 21, a clamping support pad 232 is arranged on the inner end of the clamping adjustment rod 231, and the clamping adjustment rod 231 extends horizontally from the outer side of the support base 230 to the central direction of the horizontal support frame 20, so that the clamping support pad 232 is clamped and positioned with the outer side of the main column structure of the cage. After the outer side of the main column structure of the cage is clamped and positioned by the first fixed clamping mechanism 23, the outer side and top of the main column structure of the cage are clamped by the second fixed clamping mechanism 28, so as to facilitate the all-round clamping and positioning of the main column structure of the cage.

[0028] In the present invention, if Figure 1 and Figure 2As shown, the second fixed clamping mechanism 28 includes a fixed seat 280, a support column 281 and a hinge seat 282. The fixed seat 280 can be slidably arranged on the outer side walls on both sides of the horizontal support base frame 20. The fixed seat 280 and the outer side wall of the horizontal support base frame 20 are fixedly connected by fastening bolts 280a. The lower end of the support column 281 is connected to the outer side wall of the horizontal support base frame 20 through the fixed seat 280, and the hinge seat 282 is fixed at the top of the support column 281. One or more first clamping rods 28 are horizontally arranged between the lower end and the upper end of the support column 281. 3. The first clamping rod 283 is horizontally movable and penetrates the support column 281. A first clamping block 284 is provided at the end of the first clamping rod 283 on the inner side of the end support column 281. A clamping movable arm 285 is hinged on the hinge seat 282 and rotates from the outer side to the inner side of the horizontal support base frame 20. A second clamping rod 286 is movably connected to the free end of the clamping movable arm 285. A second clamping block 287 is provided at the end of the second clamping rod 286 on the inner side of the support column 281. The first clamping rod 283 is horizontally threaded and penetrates the support column 281. A first handle 283a is provided at the end of the first clamping rod 283 on the outer side of 281; an internal threaded sleeve 288 is provided at the free end of the clamping movable arm 285, and the second clamping rod 286 is threadedly connected in the internal threaded sleeve 288, and a second handle 286a is provided at the end of the second clamping rod 286 on the outer side of the support column 281; after the main column structure of the cage is installed on the horizontal support frame 20, the first fixed clamping mechanism 23 is used to position and clamp it, and then the first clamping rod 283 is moved forward along the central direction of the horizontal support frame 20 by rotating the first handle 283a, and the first clamping rod The first clamping block 284 on the end 283 pushes the side of the main column structure of the cage for positioning and clamping, and then the clamping movable arm 285 is rotated toward the central side of the horizontal support frame 20 to be in a horizontal state, so that the outer wall of the clamping movable arm 285 contacts the hinge seat 282 to form a supporting effect, and then the second handle 286a is rotated to move the second clamping rod 286 downward, and the upper surface (top) of the second clamping block 287 on the end of the second clamping rod 286 is positioned and clamped. When disassembling, after twisting the second clamping rod 286, the clamping movable arm 285 is flipped and rotated, and the demoulding and disassembly of the main column structure of the cage can be quickly completed.

[0029] In the present invention, combined with Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the tooling quick-change mechanism 3 includes a bearing seat 301, a rotating disk 302, a connecting plate 303, a first connecting block 304 and a second connecting block 305. The bearing seat 301 is fixed on the welding positioner 1. The connecting plates 303 are respectively arranged on the side walls at both ends of the horizontal support frame 20. The connecting plates 303 are fixed to the side walls at both ends of the flat support frame 20 by bolts. The side wall of the disk surface on one side of the rotating disk 302 is connected to the bearing seat 301 through a horizontal rotating shaft 301a. When the welding positioner 1 drives the horizontal rotating shaft 301a to rotate in the bearing seat 301, the horizontal rotating shaft 301a drives the rotating disk 302 to rotate. , the flat support frame 20 connected to the rotating disk 302 also rotates accordingly, and a first clamping groove 306 parallel to the end of the horizontal support frame 20 is provided on the side wall of the disk surface on the other side of the rotating disk 302, and the first connecting block 304 is fixedly connected to the first clamping groove 306 of the rotating disk 302 by bolts, and a second clamping groove 307 is transversely provided on the connecting plate 303 above the opposite side of the first clamping groove 306, and the second clamping groove 307 is relatively parallel to the first clamping groove 306 in space, and the second connecting block 305 is fixedly connected to the second clamping groove 307 of the connecting plate 303 by bolts, and the first connecting block 30 The first connection block 304 and the second connection block 305 are connected by a slip-knot bolt 308. The first connection block 304 and the second connection block 305 are on the same vertical plane. The lower end of the slip-knot bolt 308 is rotatably connected to the end of the first connection block 304. Both ends of the second connection block 305 are provided with U-shaped openings. When the slip-knot bolt 308 is rotated upward and embedded in the U-shaped opening on the end of the second connection block 305, and then the fastening nut 308a on the free end of the slip-knot bolt 308 is tightened on the second connection block 305, a limiting stopper 308b is horizontally fixed at the U-shaped opening on the end of the second connection block 305 to prevent the slip-knot bolt from 308 exits the U-shaped opening on the end of the second connecting block 305. When the horizontal support base frame 20 needs to be replaced, the fastening nut 308a is tightened and the hitch bolt 308 is pulled out from the second connecting block 305. After the welding positioner 1 drives the tooling platform 2 to flip a certain angle, the tooling platform 2 can be pushed to make the first connecting block 304 on the rotating disk 302 and the second connecting block 305 on the connecting plate 303 slide relative to each other and disengage, so that the first connecting block 304 is separated from the second connecting block 305, and the tooling platform 2 can be quickly taken out to disengage from the rotating disk 302, thereby quickly completing the removal and replacement of the horizontal support base frame 20.

[0030] In the present invention, in the present invention, combined with Figure 1 , Figure 7 and Figure 8As shown, the movable clamping mechanism 22 includes a support beam 220, a support plate 221, and a linear sliding guide rail 222. A plurality of the support beams 220 are connected between the inner sides of the edges of both sides of the horizontal support frame 20. The support plate 221 is fixed on the support beam 220. The linear sliding guide rails 222 parallel to the support beam 220 are arranged on the edge surfaces of both sides of the support plate 221. Clamping support seats 223 are symmetrically fixed on both sides of the center of the support plate 221. A positioning sliding guide plate 224 is slidably arranged on the linear sliding guide rail 222 between the edges of 21, a connecting rod 225 is hinged on the clamping support seat 223, and the connecting rod 225 is transmission-connected with the positioning sliding guide plate 224, one or more detachable first positioning pins 226 are vertically penetrated in the center of the upper surface of the positioning sliding guide plate 224, a connecting head 224a is arranged on the end of the positioning sliding guide plate 224 close to the clamping support seat 223, and a movable connecting rod 224b is hinged on the connecting head 224a, One end of the connecting rod 225 has an arc-shaped curved portion 225a, and the other end of the connecting rod 225 has a linear push rod portion 225b. The end of the arc-shaped curved portion 225a is hinged on the positioning sliding guide plate 224, and one end of the movable connecting rod 224b is hinged on the connecting head 224a. The other end of the movable connecting rod 224b is hinged to the transition between the linear push rod portion 225b and the arc-shaped curved portion 225a. A vertically arranged upper surface of the positioning sliding guide plate 224 near the edge of the horizontal support base frame 20 There are at least two positioning support ears 227, and each positioning support ear 227 is provided with a second positioning pin 227a extending horizontally toward one side of the edge of the horizontal support base frame 20; vertical support rods 227b are provided on both sides of the end of the positioning sliding guide plate 224 close to the edge of the horizontal support base frame 20, and the lower end of the vertical support rod 227b is vertically movably connected to the positioning sliding guide plate 224, and a third positioning pin 227c extending horizontally toward one side of the edge of the horizontal support base frame 20 is horizontally provided at the upper end of the vertical support rod 227b;When it is necessary to position and clamp the main column structure of the cage through the movable clamping mechanism 22, first push the linear push rod part 225b of the connecting rod 225, so that the positioning sliding guide plate 224 slides along the linear sliding guide rail 222 toward the horizontal support base frame 20 (slides closer to the clamping support seat 223) through the sliding seat 222a at its bottom, and then position the positioning sliding guide plate 224 on the clamping support seat 223 through the first positioning pin 226 to prevent the positioning sliding guide plate 224 from being on the linear sliding guide rail 222. Then, after the main column structure of the cage is installed on the horizontal support base frame 20, Pull out the first positioning pin 226, and then push the linear push rod 225b toward the outside of the horizontal support frame 20, so that the positioning sliding guide plate 224 slides along the linear sliding guide rail 222 toward the outside of the horizontal support frame 20 (slides away from the clamping support seat 223). At this time, the second positioning pin 227a and the third positioning pin 227b will be inserted into the positioning hole in the main column structure of the cage, and then the positioning sliding guide plate 224 is positioned on the support plate 221 through the first positioning pin 226, thereby completing the clamping and positioning direction of the inner side of the main column structure of the cage by the active clamping mechanism 22. ;

[0031] According to another aspect of the present invention, Figures 1 to 8As shown, a welding construction method for a flexible welding tool for the main column structure of a hoist cage of an elevator using the present invention comprises the following steps: installing the front of the fixed hoist cage main column structure on the tooling platform 2, and contacting the two ends of the hoist cage main column structure with the inner wall of the tooling quick-change mechanism 3 to realize the positioning of the two ends of the hoist cage main column structure; clamping and positioning the outer side and the top of the hoist cage main column structure by a first fixed clamping mechanism 23; pushing the movable clamping mechanism 22 to slide from the center of the horizontal support frame 20 to the edges on both sides to clamp and position the inner side of the hoist cage main column structure. The process of positioning and clamping the hoist cage main column structure by the movable clamping mechanism 22 is as follows: first push the linear push rod portion 225b of the connecting rod 225 to slide the positioning slide The guide plate 224 slides along the linear sliding guide rail 222 toward the horizontal support base frame 20 (slides toward the clamping support seat 223) through the sliding seat 222a at the bottom thereof, and then the positioning sliding guide plate 224 is positioned on the clamping support seat 223 through the first positioning pin 226 to prevent the positioning sliding guide plate 224 from being on the linear sliding guide rail 222. After the main column structure of the cage is installed on the horizontal support base frame 20, the first positioning pin 226 is pulled out from the positioning sliding guide plate 224, and then the linear push rod portion 225b is pushed toward the outside direction of the horizontal support base frame 20, so that the positioning sliding guide plate 224 slides along the linear sliding guide rail 222 toward the outside direction of the horizontal support base frame 20 (slides away from the clamping support seat 223) ), at this time, the second positioning pin 227a and the third positioning pin 227b will be inserted into the positioning holes in the main column structure of the cage, and then the positioning sliding guide plate 224 will be positioned on the support plate 221 through the first positioning pin 226, so as to complete the clamping and positioning of the inner side of the main column structure of the cage by the movable clamping mechanism 22, and then use the second fixed clamping mechanism 28 to clamp the outer side of the main column structure of the cage, and adjust the first fixed clamping mechanism 23 to clamp and position the outer side and top of the main column structure of the cage again; use welding equipment to weld and fix the preset welding points of the main column structure of the cage, stop welding after the pre-positioned workpiece is formed, start the welding positioner 1 to drive the tooling quick-changing mechanism 3 to rotate and flip the tooling plane in turn Platform 2, use welding equipment to weld the remaining preset welding points of the main column structure of the cage. After welding is completed, wait for the main column structure of the cage to cool down, and then remove the connecting parts between the main column structure of the cage and the movable clamping mechanism 22, the second fixed clamping mechanism 28 and the first fixed clamping mechanism 23 in turn; after welding is completed, when it is necessary to replace the tooling platform 2, first remove the U-shaped opening on the end of the second connecting block 305 to reveal the horizontally fixed limit blocking block 308a, then tighten the fastening nut 308 and pull the live knot bolt 308 out of the second connecting block 305, separate the first connecting block 304 from the second connecting block 305, and the tooling platform 2 can be removed from the tooling quick-change mechanism 3, thereby completing the removal and replacement of the horizontal support base frame 20.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A flexible welding tool for the main column structure of an elevator cage, characterized in that: The invention comprises a welding positioner (1), a tooling quick-change mechanism (3) and a tooling platform (2) for clamping and fixing a main column structure of a cage, wherein the tooling quick-change mechanism (3) can be removed at both ends of the tooling platform (2), and the tooling quick-change mechanisms (3) at both ends of the tooling platform (2) can be rotatably mounted on the welding positioner (1), and the tooling platform (2) comprises a horizontal support frame (20), a fixed positioning seat (21), a movable clamping mechanism (22) and a first fixed clamping mechanism (23), and the two ends of the horizontal support frame (20) are connected by tooling quick-change mechanisms (3). The change mechanism (3) can be rotatably mounted on the welding positioner (1); a plurality of detachable fixed positioning seats (21) are arranged at intervals on the upper surface of the edge of the horizontal support frame (20); a plurality of groups of movable clamping mechanisms (22) are symmetrically arranged on the inner side of the edge of the horizontal support frame (20) and slide back and forth along the center direction of the horizontal support frame (20); the first fixed clamping mechanisms (23) are arranged on both ends of the fixed positioning seats (21); the first fixed clamping mechanisms (23) extend horizontally and vertically from the outer edge of the horizontal support frame (20) to the center; A reference positioning beam (24) is transversely arranged on the upper surface of one end portion or both ends of the horizontal support frame (20), and positioning support blocks (25) are vertically arranged at both ends of the reference positioning beam (24). A plurality of positioning screw holes (26) are transversely penetrated on the positioning support block (25), and a reference positioning screw rod (27) is threadedly connected to the inner thread of the positioning screw hole (26). The reference positioning screw rod (27) extends horizontally from the outer side of the positioning support block (25) and through the positioning screw hole (26) toward the center direction of the horizontal support frame (20); The first fixed clamping mechanism (23) and the movable clamping mechanism (22) are arranged alternately on the horizontal support frame (20), a guide wheel (21a) is arranged on the fixed positioning seat (21) and located on the inner side of the horizontal support frame (20), the horizontal height of the guide wheel (21a) is lower than the horizontal plane height of the first fixed clamping mechanism (23), and a second fixed clamping mechanism (28) is arranged on the outer side wall of the horizontal support frame (20) outside the movable clamping mechanism (22), and the second fixed clamping mechanism (28) is arranged from the outer side of the horizontal support frame (20) to the upper side of the movable clamping mechanism (22); The second fixing clamping mechanism (28) comprises a fixing seat (280), a supporting column (281) and a hinge seat (282); the fixing seat (280) can be slidably arranged on the outer side walls on both sides of the horizontal supporting frame (20); the fixing seat (280) and the outer side wall of the horizontal supporting frame (20) are fixedly connected by fastening bolts (280a); the lower end of the supporting column (281) is connected to the outer side wall of the horizontal supporting frame (20) through the fixing seat (280); the hinge seat (282) is fixed at the top end of the supporting column (281); between the lower end and the upper end of the supporting column (281), a fixing bolt (280a) is fixedly connected to the outer side wall of the horizontal supporting frame (20); One or more first clamping rods (283) are horizontally arranged, and the first clamping rods (283) are horizontally movable and penetrate the supporting column (281), and a first clamping block (284) is arranged on the end of the first clamping rod (283) on the inner side of the supporting column (281), and a clamping movable arm (285) is hinged on the hinge seat (282) and rotates from the outer side to the inner side of the horizontal supporting base frame (20), and a second clamping rod (286) is movably connected to the free end of the clamping movable arm (285), and a second clamping block (287) is arranged on the end of the second clamping rod (286) on the inner side of the supporting column (281); The first clamping rod (283) is horizontally threadedly connected to the support column (281), and a first handle (283a) is provided at the end of the first clamping rod (283) on the outer side of the support column (281); an internal threaded sleeve (288) is provided at the free end of the clamping movable arm (285), and the internal threaded sleeve (288) is threadedly connected in the internal threaded sleeve (288), and a second handle (286a) is provided at the end of the second clamping rod (286) on the outer side of the support column (281); The tooling quick-change mechanism (3) comprises a bearing seat (301), a rotating disk (302), a connecting plate (303), a first connecting block (304) and a second connecting block (305); the bearing seat (301) is fixed on the welding positioner (1); the connecting plates (303) are respectively arranged on the side walls at both ends of the horizontal support frame (20); a disk side wall on one side of the rotating disk (302) is connected to the bearing seat (301) via a horizontal rotating shaft (301a); and a first clamping groove (304) parallel to the end of the horizontal support frame (20) is arranged on the disk side wall on the other side of the rotating disk (302). 306), the first connecting block (304) is fixedly connected to the first clamping groove (306) of the rotating disk (302) by bolts, a second clamping groove (307) is transversely arranged on the upper connecting plate (303) on the opposite side of the first clamping groove (306), the second clamping groove (307) is relatively parallel to the first clamping groove (306) in space, the second connecting block (305) is fixedly connected to the second clamping groove (307) of the connecting plate (303) by bolts, and the first connecting block (304) and the second connecting block (305) are connected by a live bolt (308); The movable clamping mechanism (22) comprises a supporting crossbeam (220), a supporting plate (221), and a linear sliding guide rail (222); a plurality of the supporting crossbeams (220) are connected between the inner sides of the edges of both sides of the horizontal supporting base frame (20); the supporting plate (221) is fixed on the supporting crossbeam (220); the linear sliding guide rails (222) parallel to the supporting crossbeam (220) are arranged on the edge surfaces of both sides of the supporting plate (221); and the linear sliding guide rails (222) are arranged on both sides of the center of the supporting plate (221). A clamping support seat (223) is symmetrically fixedly arranged, and a positioning sliding guide plate (224) is slidably arranged on a linear sliding guide rail (222) between the clamping support seat (223) and the edge of the support plate (221). A connecting rod (225) is hinged on the clamping support seat (223), and the connecting rod (225) is transmission-connected to the positioning sliding guide plate (224). One or more detachable first positioning pins (226) are vertically penetrated in the center of the upper surface of the positioning sliding guide plate (224).

2. The flexible welding tool for the main column structure of the elevator cage according to claim 1 is characterized by: A connector (224a) is provided at the end of the positioning sliding guide plate (224) near the clamping support seat (223), and a movable connecting rod (224b) is hinged on the connector (224a). One end of the connecting rod (225) has an arc-shaped curved portion (225a), and the other end of the connecting rod (225) has a linear push rod portion (225b). The end of the arc-shaped curved portion (225a) is hinged on the positioning sliding guide plate (224), and one end of the movable connecting rod (224b) is hinged on the positioning sliding guide plate (224). Hinged on the connecting head (224a), the other end of the movable connecting rod (224b) is hinged to each other at the transition point between the linear push rod portion (225b) and the arc-shaped curved portion (225a); at least two positioning support ears (227) are vertically arranged on the upper surface of the positioning sliding guide plate (224) close to the edge of the horizontal support base frame (20), and each positioning support ear (227) is provided with a second positioning pin (227a) extending horizontally toward the edge of the horizontal support base frame (20).

3. The flexible welding tool for the main column structure of the elevator cage according to claim 2 is characterized by: Vertical support rods (227c) are arranged on both sides of the end of the positioning sliding guide plate (224) close to the edge of the horizontal support base frame (20), the lower end of the vertical support rod (227c) is vertically movably connected to the positioning sliding guide plate (224), and a third positioning pin (227b) is horizontally arranged at the upper end of the vertical support rod (227c) and extends horizontally toward one side of the edge of the horizontal support base frame (20).

4. A welding construction method using a flexible welding tool for the main column structure of an elevator cage according to any one of claims 1 to 3, characterized in that: The invention comprises the following steps: installing the front of the main column structure of the cage on the tooling platform (2), bringing the two ends of the main column structure of the cage into contact with the inner wall of the tooling quick-change mechanism (3), so as to realize the positioning of the two ends of the main column structure of the cage; clamping and positioning the outer side of the main column structure of the cage by a first fixed clamping mechanism (23); pushing the movable clamping mechanism (22) to slide from the center of the horizontal support frame (20) to the edges on both sides to clamp and position the inner side of the main column structure of the cage, and then using the second fixed clamping mechanism (28) to clamp the outer side and the top of the main column structure of the cage, and adjusting the first fixed clamping mechanism (23). The mechanism (23) re-clamps and positions the outer side of the main column structure of the cage; the preset welding points of the main column structure of the cage are welded and fixed by welding equipment, and welding is stopped after the pre-positioned workpiece is formed. The welding positioner (1) is started to drive the tooling quick-change mechanism (3) to rotate and turn over the tooling platform (2) in sequence, and the welding equipment is used to weld the remaining preset welding points of the main column structure of the cage. After the welding is completed and the main column structure of the cage is cooled, the connecting parts between the main column structure of the cage and the movable clamping mechanism (22), the second fixed clamping mechanism (28) and the first fixed clamping mechanism (23) are removed in sequence.

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