CN111515577B - Assembling and welding method for welding H-shaped steel - Google Patents
Assembling and welding method for welding H-shaped steel Download PDFInfo
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- CN111515577B CN111515577B CN202010523663.7A CN202010523663A CN111515577B CN 111515577 B CN111515577 B CN 111515577B CN 202010523663 A CN202010523663 A CN 202010523663A CN 111515577 B CN111515577 B CN 111515577B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 69
- 239000010959 steel Substances 0.000 title claims abstract description 69
- 238000003466 welding Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000005096 rolling process Methods 0.000 claims abstract description 30
- 230000007306 turnover Effects 0.000 claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims description 25
- 239000011265 semifinished product Substances 0.000 claims description 15
- 230000009471 action Effects 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
Abstract
The invention discloses an assembling and welding method for welding H-shaped steel, which comprises the steps of firstly obtaining an assembling and welding system, and then assembling and welding, wherein the assembling and welding system comprises a conveying roller way, an assembling machine and a turnover device; the overturning device comprises an overturning bracket, two overturning tracks which are integrally in a circular ring shape are coaxially arranged on the overturning bracket, and a circular ring-shaped overturning frame is sleeved in the overturning tracks in a relatively rotatable manner; a first notch which is horizontally arranged is arranged right above the overturning track, and a second notch is arranged on the overturning frame; two sides of the second notch are respectively provided with a supporting rod which is perpendicular to the plane of the second notch, and two ends of the supporting rod are connected to the inner side of the rolling frame; the two ends of the supporting rod are respectively provided with a bearing part which is vertically arranged inwards, and the distance between the bearing parts at the two ends is consistent with the width of the web plate; the supporting part is provided with an electromagnet for fixing the flange; the invention has the advantages of simple operation, contribution to reducing labor intensity, improving assembly welding efficiency and the like.
Description
Technical Field
The invention relates to the technical field of building material production and processing, in particular to an assembling and welding method for welding H-shaped steel.
Background
The H-shaped steel is an economic section efficient section with more optimized section area distribution and more reasonable strength-to-weight ratio, and is named because the section is the same as the English letter H. Because all parts of the H-shaped steel are arranged at right angles, the H-shaped steel has the advantages of strong bending resistance, simple construction, cost saving, light structure weight and the like in all directions and is widely applied.
The H-shaped steel is welded by cutting the strip steel with proper thickness into proper width and welding the flange and the web together on a continuous welding unit. At present, two welding modes are adopted for welding H-shaped steel, one mode is that a web plate is horizontally placed, two flanges are vertically spliced on two sides of the web plate, the web plate is located in the middle of the flanges on the two sides, then the joint of the web plate and the flanges is welded from the upper side, after the welding is finished, the whole welded H-shaped steel is turned over, and the joint of the web plate and the flanges on the other side is welded, so that the relative positions of the web plate and the two flanges are required to be spliced in place before the welding, the structure is relatively complex, and the cost is high; the other type is that the flange on one side is horizontally placed, the web is vertically placed in the middle of the flange, the joint between the two sides of the web and the flange is welded, the web is vertically placed in the middle of the other flange after the web is integrally hoisted and turned over, the H-shaped steel welding assembly is completed by repeating the welding process, the assembly welding mode only needs to determine the position relation between one flange and the web, the structure is relatively simple, and the cost is low.
However, in the welding mode, after one flange and the web are welded, the flange is hoisted to the center of a factory building and is integrally turned over by 180 degrees, so that the flange is positioned above the web and is integrally hoisted to the middle of the other flange, and the other side of the web is welded with the other flange.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide an assembly welding method for welding H-shaped steel, which is simple in operation, is beneficial to reducing labor intensity and improving assembly welding efficiency.
In order to solve the technical problems, the invention adopts the following technical scheme:
an assembling and welding method for welding H-shaped steel is characterized by comprising the following steps:
firstly, obtaining an assembly welding system with the following structure, wherein the assembly welding system comprises a conveying roller way, an assembly machine and a turnover device for turning over H-shaped steel; the assembling machines and the turning devices are arranged in two along the conveying direction of the conveying roller way, and the two turning devices are positioned between the two assembling machines; the distance between the two assembling machines is larger than the maximum length of the H-shaped steel to be welded, and the distance between the two overturning devices is smaller than the minimum length of the H-shaped steel to be welded; the conveying roller ways comprise a first conveying roller way and a second conveying roller way, the first conveying roller way is connected with the input side of the assembling machine positioned at the front end in the conveying direction, the second conveying roller way is arranged between the two overturning devices, and the distance from the second conveying roller way to the two assembling machines is less than half of the minimum length of the H-shaped steel to be welded; the second conveying roller way comprises a horizontal frame for mounting conveying rollers and a lifting mechanism vertically supported on the horizontal frame, so that the horizontal frame can integrally move up and down; the overturning device comprises an overturning bracket, two overturning tracks which are integrally annular are coaxially arranged on the overturning bracket, and an annular overturning frame is sleeved in the overturning tracks in a relatively rotatable manner; a first notch which is horizontally arranged is arranged right above the overturning track, a second notch is arranged on the overturning frame, and the width of the first notch and the width of the second notch are both larger than the width of the flange; two sides of the second notch are respectively provided with a supporting rod which is perpendicular to the plane of the second notch, and two ends of the supporting rods are connected to the inner side of the rolling frame; the two ends of the supporting rod are respectively provided with a bearing part which is vertically arranged inwards, and the distance between the bearing parts at the two ends is consistent with the width of the web plate; the supporting part is provided with an electromagnet for fixing a flange; the overturning bracket is also provided with an overturning driving mechanism for driving the overturning frame to rotate along the overturning track;
during assembly and welding, one flange is hoisted onto the first conveying roller way, and the flange on the other side is hoisted into the rolling frames of the two turning devices through the first notch on the turning track and the second notch on the rolling frame, so that two sides of the flange are completely fallen onto the other two bearing parts; the web plate is hung on the flange on the first conveying roller way and is conveyed to the assembling machine along with the flange, the gap between the web plate and the flange is welded at the output side of the assembling machine, and the welded H-shaped steel semi-finished product is continuously conveyed forwards to the positions of the two turnover devices under the combined action of the first conveying roller way and the second conveying roller way; before turning over, firstly, the height of the second conveying roller way is reduced through the lifting mechanism, the flange of the H-shaped steel semi-finished product is completely placed on the two bearing parts, the electromagnet is switched on, the flange is attracted on the bearing parts under the action of magnetic force, and the turning-over driving mechanism drives the turning-over frame to rotate 180 degrees along the turning-over track to complete the integral turning over of the H-shaped steel; and then, the height of the second conveying roller way is increased through the lifting mechanism, the electromagnet is cut off, the H-shaped steel semi-finished product and the flange are enabled to fall on the second conveying roller way in a stacking mode, the H-shaped steel semi-finished product and the flange are conveyed into the assembling machine through the second conveying roller way, and a gap between the web and the flange is welded on the output side of the assembling machine until the H-shaped steel is welded.
Furthermore, a connecting rod arranged along the axial direction is connected between the two rolling frames on the two rolling tracks, and two ends of the connecting rod are respectively and fixedly connected to the supporting rods of the two rolling frames.
Furthermore, one side of the supporting part, which faces the second notch, is provided with a guide groove, and the cross section of the guide groove is in an isosceles trapezoid shape with a wide lower part and a narrow upper part; the bearing part is provided with a limiting block, the bottom of the limiting block is provided with a sliding block matched with the guide groove, and the sliding block is slidably arranged in the guide groove; the limiting block is provided with a vertical threaded hole which is communicated with the limiting block, and the threaded hole is provided with a locking bolt.
Furthermore, the supporting part is axially movably sleeved on the supporting rod, and a locking adjusting mechanism is arranged between the supporting part and the supporting rod and used for fixing the supporting part on the supporting rod.
Furthermore, the locking adjusting mechanism comprises two supporting sleeves sleeved on the supporting rod, wherein one supporting sleeve is fixedly connected with the supporting rod, and the other supporting sleeve can move along the length direction of the supporting rod; the two bearing parts are respectively arranged at two ends of the two support sleeves which deviate from each other, and the opposite ends of the two support sleeves are provided with connecting threads with opposite turning directions and are connected through adjusting sleeves connected through threads.
Furthermore, the supporting rod is provided with a limiting groove arranged along the length direction, the supporting sleeve is provided with a limiting screw arranged in a penetrating mode along the radial direction, and the end portion of the limiting screw movably extends into the limiting groove.
In conclusion, the invention has the advantages of simple operation, contribution to reducing the labor intensity, improving the assembly welding efficiency and the like.
Drawings
Fig. 1 is a schematic diagram of the overall layout structure of a production system for welding H-shaped steel.
Fig. 2 is a schematic structural diagram of the turning device in fig. 1.
Fig. 3 is a schematic structural view of the turnover device in fig. 2 in a state of being turned over by 180 degrees.
Fig. 4 is a schematic view of the structure of the second conveying roller.
Fig. 5 is a partial structural view of the support rod and the bearing part.
Detailed Description
The present invention will be described in further detail with reference to an example of a welded H-section steel production system.
Example 1:
as shown in fig. 1, a production system for welding H-shaped steel comprises a conveying roller table 1, an assembling machine 2 and a turnover device 3 for turning over the H-shaped steel; the assembling machines 2 and the turning devices 3 are arranged in two along the conveying direction of the conveying roller way 1, and the two turning devices 3 are arranged between the two assembling machines 2; the distance between the two assembling machines 2 is larger than the maximum length of the H-shaped steel to be welded, and the distance between the two turnover devices 3 is smaller than the minimum length of the H-shaped steel to be welded; the rollgang 1 includes first rollgang 11, second rollgang 12 and third rollgang 13, first rollgang 11 and third rollgang 13 link up the setting respectively and are two the both sides that assemblage machine 2 deviates from each other, wherein, first rollgang 11 sets up the input side that is located the assemblage machine 2 of front end on the direction of delivery, the third rollgang sets up the output side that is located the assemblage machine 2 of rear end on the direction of delivery. The second conveying roller way 12 is arranged between the two turnover devices 3, and the distances from the second conveying roller way 12 to the two assembling machines 2 are both smaller than half of the minimum length of the H-shaped steel to be welded; the second rollgang 12 includes a horizontal frame 121 for mounting the conveyor rollers and a lifting mechanism 122 vertically supported on the horizontal frame, so that the horizontal frame 121 can move up and down integrally. In this embodiment, as shown in fig. 4, the lifting mechanism 122 includes a guide sleeve vertically disposed at four corners of the horizontal frame 121, and a guide post is slidably sleeved in the guide sleeve; the device also comprises hydraulic oil cylinders arranged at two ends of the horizontal frame 121 in the length direction.
Therefore, the horizontal frame keeps horizontal lifting under the lifting action of the hydraulic oil cylinders at the two ends and the guiding action of the guide sleeves and the guide columns at the four corners.
In addition, a horizontal rail 4 is laid between the output end of the second rollgang 12 and the assembling machine 2 in the conveying direction, and the turning device 3 on the side is slidably mounted on the horizontal rail 4.
In order to better support the H-section steel during the conveying process of the H-section steel, a second rollgang 12 is also arranged between the assembling machine 2 and the turnover device 3.
As shown in fig. 2 and 3, the turnover device 3 includes a turnover support 31, two turnover rails 32 integrally in a circular ring shape are coaxially disposed on the turnover support 31, and a turnover frame 33 in a circular ring shape is relatively rotatably sleeved in the turnover rails 32; a first notch 321 horizontally arranged right above the overturning track 32, a second notch 331 arranged on the overturning frame 33, wherein the width of the first notch and the width of the second notch are both greater than the width of the flange; two sides of the second notch 331 are respectively provided with a support rod 332 perpendicular to the plane of the second notch, and two ends of the support rod 332 are connected to the inner side of the rolling frame 33; the two ends of the support rod 332 are respectively provided with a bearing part 333 which is vertically arranged inwards, and the distance between the bearing parts 333 at the two ends is consistent with the width of the web plate; the supporting part 333 is provided with an electromagnet 334 for fixing the flange; the overturning bracket 31 is further provided with an overturning driving mechanism 34 for driving the overturning bracket 33 to rotate along the overturning track 32.
During production, the flange to be welded is hung on the first conveying roller way, the web is hung on the flange and is conveyed into the assembling machine 2 along with the flange, the positions of the flange and the web are adjusted and corrected through a guide wheel on the assembling machine, a gap between the web and the flange is welded on the output side of the assembling machine, and the welded web and the flange are conveyed forwards continuously under the conveying action of the first conveying roller way and the second conveying roller way and are conveyed into the two rolling frames along the axial direction. Before turning over, the height of the second conveying roller way is reduced through the lifting mechanism, so that the height of the second conveying roller way is lower than the lowest position of the turning frame. Like this, the edge of a wing of H shaped steel semi-manufactured goods just can fall on two bearing portions that two bracing pieces deviate from the second breach completely. And then, the flange on the other side is hung into the rolling frame of the two turning devices through the first notch on the turning track and the second notch on the rolling frame, so that the two sides of the flange completely fall on the two bearing parts, close to the second notch, on the two support rods, the relative positions of the flange and the web plate are adjusted, the electromagnet is switched on, and the flange is attracted to the bearing parts under the action of magnetic force. The overturning driving mechanism drives the overturning frame to rotate 180 degrees along the overturning track, so that the integral overturning of the H-shaped steel is completed. And then the height of the second conveying roller way is raised through the lifting mechanism, so that the second conveying roller way is supported below the flange. And continuously conveying the flange and the H-shaped steel semi-finished product to the assembling machine 2 positioned at the rear end forwards through a second conveying roller way, adjusting and correcting the positions of the flange and the web through a guide wheel on the assembling machine, and welding a gap between the web and the flange at the output side of the assembling machine until the H-shaped steel is welded.
In the production process, the web, the flange and the formed H-shaped steel are lifted and transported by the aid of a crown block or a crane without lifting and transporting the H-shaped steel semi-finished product, so that the production efficiency can be greatly improved. The labor intensity of workers is reduced. On the turnover device of the system, a first notch and a second notch are ingeniously arranged on the turnover track and the turnover frame, so that the flange welded afterwards can be directly lifted into the turnover frame to be spliced with the welded H-shaped steel semi-finished product.
In order to improve the overall strength of the roll frames, a connecting rod 335 arranged along the axial direction is connected between the two roll frames 33 on each turnover device, two ends of the connecting rod 335 are respectively and fixedly connected to the support rods 332 of the two roll frames 33, in this embodiment, four connecting rods 335 are arranged and are respectively located at the end parts of the two support rods 332. Meanwhile, the two opposite support rods are also provided with an inclined connecting rod arranged along the diagonal direction. Therefore, the two rolling frames can be connected into a whole, the strength can be improved, and the two rolling frames can also rotate under the action of one overturning driving mechanism.
In order to enable the web of the H-shaped steel semi-finished product falling on the bearing part to be located in the middle of the rolling frame, and the relative position of the other flange to the web corresponds, and meanwhile, to avoid the flanges or the H-shaped steel semi-finished product from sliding and being misplaced along the surface of the bearing part in the process of overturning, in this embodiment, as shown in fig. 5, one side of the bearing part 333 facing the second notch 331 is provided with a guide groove which is arranged in a penetrating manner in the direction facing the other support rod, and the cross section of the guide groove is in an isosceles trapezoid shape with a wide bottom and a narrow top; a limiting block 336 is arranged on the bearing part 333, a sliding block matched with the guide groove is arranged at the bottom of the limiting block 336, and the sliding block is slidably arranged in the guide groove; the limiting block 336 is provided with a vertical threaded hole which is communicated with the limiting block, and the threaded hole is provided with a locking bolt.
Therefore, the position of the limiting blocks 336 on the supporting parts can be adjusted according to the flanges with different widths, so that the distance between the limiting blocks on the two supporting parts is consistent with the width of the flange, and the flange and the H-shaped steel semi-finished product cannot move along the surface of the supporting parts in the process of integrally rotating the rolling frame; the relative position between the flange and the web to be welded can be adjusted in advance through the limiting block, and subsequent positioning and welding of the assembling machine are facilitated.
Because the width of the web of the H-shaped steel of different models is different, in order to adapt to the webs of different widths, the bearing part 333 is sleeved on the support rod 332 in an axially movable manner, and a locking adjusting mechanism 337 is arranged between the bearing part 333 and the support rod 332 and used for fixing the bearing part 333 on the support rod 332. Therefore, the position of the bearing part can be adjusted, the distance of the bearing part on the same supporting rod is matched with the width of a web plate of the H-shaped steel to be welded, and the H-shaped steel welding support is suitable for production and use of H-shaped steel of different models.
In this embodiment, the locking adjustment mechanism 337 includes two support sleeves 337a sleeved on the support rod 332, wherein one support sleeve 337a is fixedly connected to the support rod 332, and the other support sleeve can move along the length direction of the support rod; the two bearing parts 333 are respectively installed at two ends of the two support sleeves 337a which are away from each other, and the opposite ends of the two support sleeves 337a are provided with connecting threads with opposite turning directions and are connected through the adjusting sleeves 337b connected by threads.
Because the connecting threads on the two supporting sleeves are opposite in turning direction, when the adjusting sleeve rotates relative to the supporting sleeve, the two supporting sleeves can be simultaneously retracted inwards or simultaneously extended outwards, so that the distance of the bearing part can be adjusted, and the requirements of different web plate widths are met.
In order to make the adjusting sleeve rotate better, in the embodiment, two handles arranged along the radial direction are also arranged on the adjusting sleeve.
The support rod 332 is provided with a limit groove arranged along the length direction, the support sleeve is provided with a limit screw arranged along the radial direction in a penetrating way, and the end part of the limit screw movably extends into the limit groove.
Therefore, the supporting sleeve can move along the length direction of the supporting rod, and the supporting sleeve can be prevented from rotating around the supporting rod.
In this embodiment, the bottom of spacing groove still have with stop screw assorted location screw, the location screw is followed the length direction equidistance of bracing piece sets up.
Therefore, the limit screw on one of the support sleeves is matched with the positioning screw hole at the bottom of the limit groove, and the support sleeve can be fixedly connected with the support rod.
In this embodiment, the two supporting portions of the two supporting rods departing from the second notch are connected into a whole.
In addition, in this embodiment, after the bearing portions are adjusted according to the width of the web, especially after the H-shaped steel with a large web width is adjusted, because the distance between the two bearing portions on the support rod needs to be increased, the lowest position of the flange after the turning is lower than the lowest position of the flange before the turning, in order to enable the H-shaped steel to be horizontally conveyed to the assembling machine at the rear end under the action of the second roller conveyor for welding, in this embodiment, the working plane of the assembling machine at the rear end and the lowest position of the rolling frame are located at the same height.
In implementation, the overturning driving mechanism 34 includes a driving motor and a speed reducer installed on the overturning bracket 31, and an output end of the speed reducer is provided with a gear; the rolling frame 33 is provided with gear teeth meshed with the gear.
In this embodiment, the turning track 32 is formed by splicing three arc-shaped track plates mounted on the turning support, the inner side of each track plate is provided with a track groove which is arranged in a penetrating manner along the length direction, and the bottom of the cross section of each track groove is arc-shaped; the rolling frame 33 is rotatably embedded in the track groove, and the part of the rolling frame 33, which is opposite to the bottom of the track groove, is provided with gear teeth uniformly distributed along the circumferential direction; the width of the first gap is larger than that of the second gap, so that the rolling frame 33 is exposed out of the first gap. The gear is mounted on the turning bracket through a bearing seat and is meshed with the gear teeth on the turning frame 33.
Example 2:
in this embodiment, the main structure of the present embodiment is the same as that of embodiment 1, and is not described again, and the main differences between the present embodiment and embodiment 1 are as follows:
the locking adjusting mechanism 337 comprises two supporting sleeves 337a sleeved on the supporting rod 332, and the two supporting sleeves 337a can move along the length direction of the supporting rod; the opposite ends of the two support sleeves 337a are provided with connecting threads having opposite directions of rotation and are connected by a threadedly connected adjustment sleeve 337 b. The support rod 332 is provided with a limit groove arranged along the length direction, the support sleeve is provided with a limit screw arranged along the radial direction in a penetrating way, and the end part of the limit screw movably extends into the limit groove.
The two bearing parts 333 are respectively installed at two ends of the two support sleeves 337a which are deviated from each other, and the two bearing parts located at one end of the support rod deviated from the second notch are connected into a whole bearing plate, a spring 35 arranged along the direction of the support rod is connected between the middle part of one side of the bearing plate deviated from the second notch and the rolling frame, and the rolling frame is further provided with a top block 36 which is abutted against the bearing plate, so that the spring 35 is in an original length or a slight stretching state.
In the conveying direction of the conveying roller way, the assembling machine positioned at the front end is a front end assembling machine, and the assembling machine positioned at the rear end is a rear end assembling machine.
Because the jacking block on the rolling frame abuts against the bearing plate, the spring is in an original length or a tiny stretching state, and the bearing plate cannot move towards a direction departing from the second notch under the action of the jacking block, namely, the height of the bearing plate is kept unchanged under the action of the jacking block under the state that the second notch faces upwards, so that H-shaped steel semi-finished products conveyed to the turnover device from the front-end assembling machine can fall on the bearing plate better.
In addition, because the vertical setting of bracing piece is in the both sides of second breach, and the both ends of bracing piece all are connected on the roll frame for the bracing piece is along with roll frame upset 180 degrees back, and the bracing piece lower extreme highly uniform before and after the upset. The supporting part is arranged on the supporting rod, namely the lowest position of the supporting part cannot be lower than the height of the lower end of the supporting rod, the height of the working table top of the rear end assembling machine is set to be in accordance with the height of the lower end of the supporting rod in a vertical state, the working table top of the rear end assembling machine can be guaranteed to be always lower than the height of the turned flange and to be as close to the flange as possible, the second conveying roller way can be conveniently and quickly adjusted in connection height, and H-shaped steel is conveyed.
Because the flange of a wing falls to put on bearing portion before the upset, utilize the electromagnet actuation flange of a wing and upset back, bearing portion is located the top on the flange of a wing, and when the second rollgang rises and holds the flange of a wing this moment, extrude the flange of a wing between bearing portion and second rollgang easily, cause the damage of bearing portion, second rollgang and flange of a wing promptly easily, make the flange of a wing again can't carry smoothly under the extrusion of the two. Through the spring arranged between the bearing plate and the rolling frame, after the flange is turned over along with the rolling frame under the attraction effect of the electromagnet, the whole weight of the H-shaped steel is finally applied to the spring through the attraction effect of the electromagnet, so that the spring is stretched. At the moment, after the second rollgang rises and supports the flange, part of the weight of the H-shaped steel is borne by the second rollgang, and the spring naturally contracts, so that the flange cannot be extruded. And then cutting off the electromagnetic suction force of the electromagnet, separating the flange from the bearing part, further contracting the spring, enabling the bearing part to move upwards and completely separate from the flange, and continuously bearing the bottom of the flange by a second conveying roller way. Therefore, the second conveying roller way continues to convey the H-shaped steel forwards, and meanwhile, the second conveying roller way slowly descends to be consistent with the height of the working table top of the rear end assembling machine.
In this embodiment, treat the both ends of welding the edge of a wing through two turning devices and carry out the bearing, during production, when the front end assemblage machine carries out the welded to H shaped steel semi-manufactured goods hoist another edge of a wing to wait on two turning devices to can shorten the assemblage welding time of H shaped steel greatly, improve work efficiency.
The above description is only exemplary of the present invention and should not be taken as limiting, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. An assembling and welding method for welding H-shaped steel is characterized by comprising the following steps:
firstly, obtaining an assembly welding system with the following structure, wherein the assembly welding system comprises a conveying roller way (1), an assembly machine (2) and a turnover device (3) for turning over H-shaped steel; the assembling machine (2) and the turning device (3) are arranged in two along the conveying direction of the conveying roller way (1), and the two turning devices (3) are positioned between the two assembling machines (2); the distance between the two assembling machines (2) is greater than the maximum length of the H-shaped steel to be welded, and the distance between the two turnover devices (3) is less than the minimum length of the H-shaped steel to be welded; the conveying roller way (1) comprises a first conveying roller way (11) and a second conveying roller way (12), the first conveying roller way (11) is connected with the input side of the assembling machine (2) which is positioned at the front end in the conveying direction, the second conveying roller way (12) is arranged between the two overturning devices (3), and the distance from the second conveying roller way (12) to the two assembling machines (2) is less than half of the minimum length of the H-shaped steel to be welded; the second conveying roller way (12) comprises a horizontal frame (121) for mounting conveying rollers and a lifting mechanism (122) vertically supported on the horizontal frame, so that the horizontal frame (121) can integrally move up and down; the overturning device (3) comprises an overturning bracket (31), two overturning rails (32) which are integrally annular are coaxially arranged on the overturning bracket (31), and an annular overturning frame (33) is sleeved in the overturning rails (32) in a relatively rotatable manner; a first notch (321) horizontally arranged is arranged right above the overturning track (32), a second notch (331) is arranged on the overturning frame (33), and the width of the first notch and the width of the second notch are both larger than the width of the flange; two sides of the second notch (331) are respectively provided with a support rod (332) which is perpendicular to the plane of the second notch, and two ends of the support rod (332) are connected to the inner side of the rolling frame (33); both ends of the supporting rod (332) are provided with bearing parts (333) which are vertically arranged inwards, and the distance between the bearing parts (333) at both ends is consistent with the width of the web plate; an electromagnet (334) for fixing the flange is arranged on the bearing part (333); the overturning bracket (31) is also provided with an overturning driving mechanism (34) for driving the overturning frame (33) to rotate along the overturning track (32);
the supporting part (333) is sleeved on the supporting rod (332) in an axially movable manner, a locking adjusting mechanism (337) is arranged between the supporting part (333) and the supporting rod (332), the locking adjusting mechanism (337) comprises two supporting sleeves (337 a) sleeved on the supporting rod (332), and the two supporting sleeves (337 a) can move along the length direction of the supporting rod; the opposite ends of the two support sleeves (337 a) are provided with connecting threads with opposite turning directions and are connected through adjusting sleeves (337 b) connected through the threads; the supporting rod (332) is provided with a limiting groove arranged along the length direction, the supporting sleeve is provided with a limiting screw arranged in a penetrating manner along the radial direction, and the end part of the limiting screw can movably extend into the limiting groove; the bearing parts (333) are respectively arranged at two ends of the two support sleeves (337 a) which are deviated from each other, the two bearing parts positioned at one end of the support rod which is deviated from the second gap are connected into a whole bearing plate, a spring (35) which is arranged along the direction of the support rod is connected between the middle part of one side of the bearing plate which is deviated from the second gap and the rolling frame, and the rolling frame is also provided with a top block (36) which is abutted against the bearing plate, so that the spring (35) is in the original length;
during assembly and welding, one flange is hoisted onto the first conveying roller way, and the flange on the other side is hoisted into the rolling frames of the two turning devices through the first notch on the turning track and the second notch on the rolling frame, so that two sides of the flange are completely fallen onto the other two bearing parts; the web plate is hung on the flange on the first conveying roller way and is conveyed to the assembling machine along with the flange, the gap between the web plate and the flange is welded at the output side of the assembling machine, and the welded H-shaped steel semi-finished product is continuously conveyed forwards to the positions of the two turnover devices under the combined action of the first conveying roller way and the second conveying roller way; before turning over, firstly, the height of the second conveying roller way is reduced through the lifting mechanism, the flange of the H-shaped steel semi-finished product is completely placed on the two bearing parts, the electromagnet is switched on, the flange is attracted on the bearing parts under the action of magnetic force, and the turning-over driving mechanism drives the turning-over frame to rotate 180 degrees along the turning-over track to complete the integral turning over of the H-shaped steel; and then, the height of the second conveying roller way is increased through the lifting mechanism, the electromagnet is cut off, the H-shaped steel semi-finished product and the flange are enabled to fall on the second conveying roller way in a stacking mode, the H-shaped steel semi-finished product and the flange are conveyed into the assembling machine through the second conveying roller way, and a gap between the web and the flange is welded on the output side of the assembling machine until the H-shaped steel is welded.
2. The assembly welding method for welding H-shaped steel according to claim 1, characterized in that a connecting rod (335) arranged along the axial direction is connected between the roll frames (33) on the two roll rails (32), and both ends of the connecting rod (335) are respectively fixedly connected to the supporting rods (332) of the two roll frames (33).
3. The assembly welding method for welding H-shaped steel according to claim 1, characterized in that the side of the bearing part (333) facing the second notch (331) is provided with a guide groove, the cross section of the guide groove is in the shape of an isosceles trapezoid with the lower width and the upper width being narrow; a limiting block (336) is arranged on the bearing part (333), a sliding block matched with the guide groove is arranged at the bottom of the limiting block (336), and the sliding block is slidably arranged in the guide groove; the limiting block (336) is provided with a vertical threaded hole which is communicated with the limiting block, and the threaded hole is provided with a locking bolt.
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| CN112059373B (en) * | 2020-08-31 | 2022-08-09 | 浙江省建工集团有限责任公司 | Welding method for submerged-arc welding of H-shaped steel |
| CN114227052B (en) * | 2022-02-28 | 2022-04-29 | 山东宏基石油机械设备有限公司 | H-shaped steel welding process |
| CN115502639B (en) * | 2022-10-12 | 2023-09-22 | 云南天宝钢结构工程有限公司 | I-steel equipment pre-welding fixing device |
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Effective date of registration: 20240311 Address after: 638300 Luodu Town Employment and Service Guarantee Center, Group 3, Loufangwan Village, Luodu Town, Yuechi County, Guang'an City, Sichuan Province Patentee after: Sichuan Bendu New Material Technology Co.,Ltd. Guo jiahuodiqu after: China Address before: 400084 5-8, building 4, 101 Cuibai Road, Chunhui road street, Dadukou District, Chongqing Patentee before: Chongqing Benhao Construction Engineering Co.,Ltd. Guo jiahuodiqu before: China |