Welding equipment for cross-shaped steel column and using method of welding equipment

Abstract

The invention discloses welding equipment for a cross-shaped steel column and a using method of the welding equipment, and belongs to the technical field of civil building steel structure welding equipment. The welding equipment comprises a supporting device and a welding device, in the supporting device, a plurality of telescopic lifting shores distributed in the circumferential direction of a rotating support at intervals are arranged in the rotating support, and the supporting device is used for supporting a cylindrical steel column in the circumferential direction and driving the cylindrical steel column to rotate; the u-shaped supporting base is used for abutting against and positioning the cylindrical steel column to be welded and the two connecting profile steels on the two opposite sides of the surface of the cylindrical steel column, and an avoiding channel is machined in the bottom of the u-shaped supporting base and used for providing space needed by rotation of the connecting profile steels. A transverse sliding assembly in the transverse moving mechanism can drive the axis of the cylindrical steel column to move in the horizontal direction. According to the scheme, welding of four pieces of connecting profile steel on the surface of the steel column is facilitated; and the symmetry of the welding positions of the cylindrical steel column and the connecting profile steel can be improved, and then the stress condition in the welding process can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment for civil construction steel structures, and more specifically to a welding device for a cross-shaped steel column and a use method thereof. Background Art

[0002] In the processing of steel structure engineering, standardized and simple steel structure components can be processed and manufactured on an automated production line with no or few people through traditional steel structure batch welding equipment, thereby improving the intelligence of welding production.

[0003] For simple steel pipe welding, such as welding an I-beam column to the corbel columns on both sides thereof, the existing welding equipment can improve the degree of intelligence. For example, the Chinese patent with application number 2021214748494 discloses a corbel column cantilever beam and an I-beam column welding system, which has a pit, and conveyor rollers are arranged on both sides of the upper part of the pit along the length direction of the pit. A set of mechanisms for preventing the middle deformation of long workpieces is arranged on both sides of the pit in the middle position of the conveyor rollers. The mechanisms for preventing the middle deformation of long workpieces on both sides are arranged relatively. The mechanisms for preventing the middle deformation of long workpieces on both sides include a support mechanism and a clamping roller arranged at the front end of the support mechanism. The clamping rollers on both sides are pressed against the two side wing plates of the long I-beam column together; automatic clamping mechanisms for clamping the head and tail sections of the workpiece are also arranged at relative positions on both sides of the pit.

[0004] This type of automatic welding is only suitable for welding I-beam columns and welded bracket columns on both sides. When the I-beam column is replaced with a cylindrical steel column, this type of welding system will no longer be suitable, and the welding force of this welding system needs to be further improved.

[0005] For circular steel columns with large diameters, four cross-distributed connecting steels are evenly welded on their outer curved surfaces along the four directions, usually called supporting brackets or connecting joints, to achieve three-dimensional high-quality steel component processing to meet the requirements of new industrial processing. At present, there is no relevant high-precision special processing and welding equipment or automated production line. When welding traditional large cylindrical steel columns, the cylindrical steel columns are generally first processed and welded in two dimensions, and then the welding of this part is completed in the factory. At the construction site, the cylindrical steel columns are erected, installed and fixed, and then manually welded to form three-dimensional components. This construction method not only has poor connection accuracy, but also cannot guarantee the welding quality. Therefore, it is not convenient to set four evenly distributed clamping mechanisms along the circumferential direction to position the connecting steel. Although, existing research also has relevant welding equipment that can weld cross nodes around the steel column. For example, the Chinese patent application number is 2010202958065, which discloses a steel pipe flange cross node assembly welding device, which specifically discloses that a pair of brackets with adjustable distance are provided on a circular platform, and a three-jaw chuck is provided on each bracket; the central vertical axis of the circular platform slides with a turntable; a pair of brackets with adjustable distance are provided on the turntable, and a three-jaw chuck is provided on each bracket; the center heights of the four three-jaw chucks arranged on the circular platform and the turntable are equal; the outer circumference of the circular platform is engraved with graduation lines, and the outer circumference of the turntable is engraved with reading scale lines.

[0006] Although this type of welding device can connect vertical cross nodes, it is not suitable for welding large steel columns and connecting steel. The vertical support method of the steel pipe is not suitable for supporting large cylindrical steel columns. Moreover, this type of welding device needs to position the four sides of the steel pipe cross node at the same time, and the welding force during the welding process needs to be further improved.

[0007] That is, the above two types of equipment cannot effectively improve the stress conditions during the welding process of the cylindrical steel column and the cross-shaped corbel column. Summary of the invention

[0008] In view of the technical problems in the prior art that there is no suitable support device for large cylindrical steel columns or the stress conditions during the welding of cross-shaped steel columns need to be further improved, the present invention provides a cross-shaped steel column welding device and a method for using the same. The solution not only facilitates the welding of four connecting steels on the surface of the steel column and improves the welding efficiency, but also improves the symmetry of the welding position of the cylindrical steel column and the connecting steel, thereby improving the stress conditions during the welding process.

[0009] In order to achieve the above object, the technical solution provided by the present invention is:

[0010] The first aspect of the present invention provides a cross-shaped steel column welding device, comprising a supporting device and a welding device, the welding device is used to weld four connecting steels on the cylindrical steel column, the supporting device is used to support and position the cylindrical steel column, the supporting device comprises a mounting base, and the mounting base is provided with a lateral movement mechanism, a rotating support and a U-shaped support seat spaced apart in the horizontal direction, wherein:

[0011] The rotating support is provided with a plurality of retractable lifting supports spaced apart along its circumferential direction, which are used to support the cylindrical steel column in the circumferential direction and drive the cylindrical steel column to rotate around its own axis;

[0012] The U-shaped support seat is used to tighten and position the two connecting steel sections on the opposite sides of the cylindrical steel column to be welded and its surface, and the two side walls of the U-shaped support groove in the U-shaped support seat are respectively provided with two clamping mechanisms for tightening and positioning; an avoidance channel is processed at the bottom of the U-shaped support seat to provide the space required for the rotation of the connecting steel section; the lateral movement mechanism includes a lateral sliding assembly and a vertical support assembly, the lower part of the vertical support assembly is fixedly connected to the lateral sliding assembly, the lateral sliding assembly can drive the vertical support assembly to move along the axis of the cylindrical steel column, and the vertical support assembly can telescopically support the cylindrical steel column in the vertical direction.

[0013] Furthermore, the U-shaped support seat includes two symmetrically arranged L-shaped reaction walls, and the two L-shaped reaction walls are arranged at a relative interval to form an avoidance channel.

[0014] Furthermore, the top surfaces of the toe plates at both ends of the two L-shaped reaction walls are fixedly connected by two connecting and fixing plates that are distributed at intervals in the transverse direction, and the avoidance channel is located between the two connecting and fixing plates.

[0015] Furthermore, the clamping mechanism includes a first jack arranged horizontally along the longitudinal direction, and a cylinder body of the first jack is installed on the L-shaped reaction wall.

[0016] Furthermore, the transverse sliding assembly includes a fixed reaction column, the second jack is horizontally arranged in the transverse direction and its cylinder body is installed on the reaction column, and its movable end is arranged toward the rotating support and fixedly connected to the lower part of the vertical support assembly.

[0017] Furthermore, the lateral movement mechanism also includes a roller bar, and the bottom of the vertical support assembly is placed on the roller bar.

[0018] Furthermore, the rotating support also includes an arc-shaped support and a cylinder. The bottom of the arc-shaped support is fixedly arranged, and the cylinder is rotatably installed on the top of the arc-shaped support. A plurality of lifting top supports are arranged on the inner side wall of the cylinder.

[0019] Furthermore, the welding equipment also includes a plurality of vertical support mechanisms spaced apart between the rotating support and the U-shaped support seat, which are used to support the lower part of the cylindrical steel column; and / or the two side walls of the U-shaped support groove in the U-shaped support seat are also respectively provided with laser sensors, and the outer curved surface of the cylindrical steel column is affixed with reflective stickers along its arc direction, and the reflective stickers are arranged on both sides of the contact surface between the cylindrical steel column and the connecting steel, and the laser sensor is used to detect the position of the reflective stickers in the cylindrical steel column.

[0020] The second aspect of the present invention further provides a method for using the above-mentioned cross-shaped steel column welding device, comprising the following steps:

[0021] S1, hoist the cylindrical steel column horizontally and extend one end of it into the rotating support;

[0022] S2, maintaining horizontal lifting, the lateral movement mechanism pushes the cylindrical steel column to move in the horizontal direction, so that the cylindrical steel column continues to extend into the rotating support;

[0023] S3, after the cylindrical steel column is pushed to the preset position between the U-shaped support seats, the lifting top support in the rotating support extends out to support one end of the cylindrical steel column in the circumferential direction; then two connecting steels are symmetrically placed on both sides of the cylindrical steel column, wherein the web of the connecting steel is arranged parallel to the axis of the cylindrical steel column;

[0024] S4, the clamping mechanism extends to clamp the outer ends of the two connecting steels, and the welding device welds the upper edge line of the contact surface between the cylindrical steel column and the connecting steel; then the contact arc line between the flanges on both sides of the connecting steel and the outer curved surface of the cylindrical steel column is welded, that is, the arc line welding is performed on the edge lines on both sides of the contact surface between the cylindrical steel column and the connecting steel;

[0025] S5, after the preliminary welding of the connecting steel sections and the cylindrical steel columns on both sides is completed, the clamping mechanism retracts, the rotating support drives the cylindrical steel column to rotate 180°, the clamping mechanism extends, and the welding device welds the upper edge line of the contact surface between the cylindrical steel column and the connecting steel section; during the rotation process, the connecting steel section on one side rotates 180° through the avoidance channel to reach the other side.

[0026] Furthermore, the rotating support in S5 drives the cylindrical steel column to rotate 180° instead of 270°, specifically,

[0027] S51, the rotating support first drives the cylindrical steel column to rotate 90 degrees; then the two connecting steels are symmetrically placed on both sides of the cylindrical steel column, and the clamping and welding process of step S4 is repeated. The welding process of S4 is repeated twice to form a cross-shaped steel column;

[0028] S52, the clamping mechanism retracts, and the rotating support drives the cylindrical steel column to continue rotating 90° in the same direction;

[0029] S53, the clamping mechanism extends, and the welding device welds the upper edge line of the contact surface between the cylindrical steel column and the connecting steel;

[0030] S54, repeat step S52;

[0031] Then continue to execute the remaining operations in S5.

[0032] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0033] (1) The present invention sets an avoidance channel in the U-shaped support seat, and the rotating support can drive the initially welded connecting steel to rotate, that is, drive the flipping of the contact surface between the web of the connecting steel and the cylindrical steel column, so that the welding device can respectively weld the upper and lower end surfaces of the web of the same connecting steel on both sides of the axial symmetry of the cylindrical steel column, thereby improving the symmetry of the welding position and greatly improving the stress conditions of the welding process. Moreover, the welding operability is improved, and the welding device does not need to weld the lower end surface of the web of the welded connecting steel. The operating space at the lower end surface is relatively small, and the operation is limited, which seriously affects the welding accuracy. Further, based on the rotating support, the welded connecting steel is driven to rotate 90°; the initially welded or welded connecting steel can also be placed in the avoidance channel, and another pair of connecting steels perpendicular to the previous pair of connecting steels are arranged on both sides of the cylindrical steel column, thereby further completing the welding of the cross-shaped steel column.

[0034] (2) The present invention further optimizes the structure of the transverse moving mechanism. Specifically, by adding a vertical support assembly, the vertical support assembly can not only transmit the horizontal movement of the transverse moving assembly to the cylindrical steel column, but also support the bottom of the cylindrical steel column during the horizontal pushing process. Most importantly, the transverse moving mechanism can push the cylindrical steel column multiple times in a single direction, thereby reducing the requirements for a single telescopic stroke of the transverse moving assembly. In addition, the setting height of the transverse moving assembly is reduced, thereby avoiding interference with the second jack when the cylindrical steel column is delivered. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the three-dimensional structure of the welding equipment of the cross-shaped steel column in an embodiment of the present invention.

[0036] Figure 2 In the embodiment of the present invention Figure 1 Cross-section from medium AA perspective.

[0037] Figure 3 It is a left-view structural schematic diagram of a local structure in an embodiment of the present invention.

[0038] Figure 4 For the present invention Figure 1A magnified schematic diagram of the local structure.

[0039] Description of labels:

[0040] 1. Rotating support; 101. Lifting top support; 102. Cylinder; 103. Arc-shaped support; 104. First rotating roller;

[0041] 2. U-shaped support seat; 201. first jack; 202. L-shaped reaction wall; 203. avoidance passage; 204. connection fixing plate; 205. laser sensor;

[0042] 3. Horizontal moving mechanism; 301. Reaction column; 302. Second jack; 303. Roller bar; 304. Vertical support assembly;

[0043] 4. Vertical support mechanism; 401. Fixed base; 402. Fourth jack;

[0044] 5. Install the base;

[0045] 6. Cylindrical steel column; 601. Reflective sticker;

[0046] 7. Connecting steel;

[0047] 8. Welding device;

[0048] 9. Pressurized oil pump. DETAILED DESCRIPTION

[0049] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.

[0050] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of implementation. The change or adjustment of their relative relationship should also be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0051] For the purpose of describing the welding equipment and its use, please refer to Figure 1In the viewing angle shown, the “transverse” and “longitudinal” are orthogonal to form a horizontal plane. The direction along the axis of the cylindrical steel column 6 is called “transverse”, and the horizontal direction perpendicular to the above “transverse” is called “longitudinal”, that is, the horizontal direction perpendicular to the axis of the cylindrical steel column 6.

[0052] This embodiment provides a cross-shaped steel column welding device, referring to Figure 1 As shown, the welding equipment includes a supporting device and a welding device 8, the welding device 8 is used to weld four connecting steels 7 on the cylindrical steel column 6, the supporting device is used to support and position the cylindrical steel column 6, and the supporting device includes a mounting base 5, on which a lateral moving mechanism 3, a rotating support 1 and a U-shaped support seat 2 are arranged at intervals along the horizontal direction, wherein: the rotating support 1 is provided with a plurality of retractable lifting top supports 101 arranged at intervals along its circumferential direction, which are used to support the cylindrical steel column 6 in the circumferential direction and drive the cylindrical steel column 6 to rotate around its own axis; the U-shaped support seat 2 is used to support the cylindrical steel column 6 to be welded The cylindrical steel column 6 is tightened and positioned with two connecting steel sections 7 on opposite sides of its surface, and the two side walls of the U-shaped support groove in the U-shaped support seat 2 are respectively provided with two clamping mechanisms for tightening and positioning; an avoidance channel 203 is processed at the bottom of the U-shaped support seat 2 to provide the space required for the rotation of the connecting steel section 7; the lateral movement mechanism 3 includes a lateral sliding component and a vertical support component 304, the bottom of the vertical support component 304 is fixedly connected to the lateral sliding component, the lateral sliding component can drive the vertical support component 304 to move along the axis of the cylindrical steel column 6, and the vertical support component 304 can telescopically support the cylindrical steel column 6 in the vertical direction.

[0053] The bottom of the lateral moving mechanism 3 , the rotating support 1 and the U-shaped support seat 2 are fixedly mounted on the same mounting base 5 .

[0054] The mounting base 5 can be split or integral. Preferably, the mounting base 5 is split, and adopts a steel base, including hot-rolled H-shaped steels arranged symmetrically and in parallel, two hot-rolled H-shaped steels are spaced apart in the longitudinal direction, and the lower flanges of the two hot-rolled H-shaped steels are installed in the concrete foundation by fixing bolts. Specifically, the above-mentioned fixing bolts are L-shaped right-angle bolts, the right-angle section of which is embedded in the concrete, and the upper part thereof is used to firmly fix the lower flange of the hot-rolled H-shaped steel on the concrete foundation through an extruded connecting plate; wherein the extruded connecting plate is a square steel plate with a bolt hole reserved in the middle and having a certain thickness.

[0055] In order to further improve the stability of the mounting base 5, the mounting base 5 also includes two fixed beams symmetrically arranged at both ends of the hot-rolled H-shaped steel, and the two hot-rolled H-shaped steels are further fixedly connected by the fixed beams, that is, the mounting base 5 with a rectangular cavity is enclosed. Preferably, a plurality of parallel and spaced fixed beams can be arranged in the middle of the two hot-rolled H-shaped steels, and the stability of the connection between the two hot-rolled H-shaped steels is increased by the plurality of fixed beams, and the stability of the mounting base 5 is further increased.

[0056] More preferably, a certain number of stiffening ribs are arranged between the upper and lower flanges of the two hot-rolled H-shaped steels, so as to further improve the supporting stability of the mounting base 5.

[0057] The lifting support 101 in the rotating support 1 extends to support one end of the cylindrical steel column 6 in a circumferential direction. When the cylindrical steel column 6 moves in a horizontal direction relative to the rotating support 1, the lifting support 101 below the cylindrical steel column 6 supports it, and the other lifting supports 101 retract.

[0058] It should be noted that when the cylindrical steel column 6 is welded to the connecting steel 7 , the vertical support assembly 304 extends in the vertical direction to support the cylindrical steel column 6 .

[0059] As a preferred embodiment of the U-shaped support seat 2, refer to Figure 2 As shown, the U-shaped support seat 2 includes two symmetrically arranged L-shaped reaction walls 202, which are arranged at a relative interval to form an escape channel 203. Accordingly, the escape channel 203 is formed at the interval between the L-shaped reaction walls 202. The lower parts of the two L-shaped reaction walls 202 are welded to the upper end surface of the mounting base 5.

[0060] refer to Figure 1 As shown, in order to improve the overall stability of the U-shaped support seat 2, the top surfaces of the toe plates at both ends of the two L-shaped reaction walls 202 are respectively fixedly connected by two connecting and fixing plates 204 distributed at intervals in the transverse direction, and the avoidance channel 203 is located between the two connecting and fixing plates 204. Accordingly, the two ends of the connecting and fixing plates 204 are respectively fixedly installed on the upper end surfaces of the two L-shaped reaction walls 202, and the interval between the two L-shaped reaction walls 202 and the opposite sides of the connecting and fixing plates 204 on both sides enclose a rectangular avoidance channel 203.

[0061] refer to Figure 1 As shown, the clamping mechanism includes a first jack 201 arranged horizontally along the longitudinal direction, and the cylinder body of the first jack 201 is installed on the L-shaped reaction wall 202.

[0062] It should be noted that the first jack 201 is connected to the pressurized oil pump 9 through a control oil pipe, and the expansion and contraction amount of the first jack 201 can be regulated by controlling the amount of oil. Furthermore, the brain hub of the pressurized oil pump 9 is a control system, which is connected to the pressurized oil pump 9 through a command transmission line. This method can be used to control other jacks in the welding equipment, and multiple jacks can be further controlled to move synchronously or asynchronously. This technology is a prior art in the field and will not be described in detail here.

[0063] The movable ends of the first jacks 201 in the two clamping mechanisms are close to each other to tighten the connecting steels 7 arranged on both sides of the cylindrical steel column 6. Correspondingly, the movable ends of the first jacks 201 tighten the outer ends of the connecting steels 7 away from the cylindrical steel column 6.

[0064] The length of the connecting steel 7 is generally several tens of centimeters, and the length of the cylindrical steel column 6 is generally between three meters and six meters, and the length difference between the two is relatively large. Figure 1 It is used to show the relative position relationship and connection relationship between the connecting steel 7 and the cylindrical steel column 6. The relative proportion between the two shown in the figure is different from the actual proportion. Figure 1 , Figure 2 , Figure 3 The middle parts are only used to illustrate their relative positional relationship and connection relationship and should not be understood as a limitation on the relative size ratios of the parts.

[0065] The connecting steel 7 is generally a hot-rolled H-shaped steel, one end of which is welded to the cylindrical steel column 6, and the other end is provided with a hole for bolts, which can be used as a rope threading hole for lifting.

[0066] Generally speaking, Figure 1 The end section of the connecting steel 7 shown in the perspective view is H-shaped.

[0067] In some embodiments, the lateral movement mechanism 3 includes a fixed reaction column 301, a second jack 302 is horizontally arranged in the lateral direction and its cylinder is installed on the reaction column 301, and its movable end is arranged toward the rotating support 1. Specifically, the lower part of the reaction column 301 is welded and fixed to the upper end surface of the mounting base 5.

[0068] As a further preference for the lateral moving mechanism 3, the lateral sliding assembly includes a fixed reaction column 301, the second jack 302 is horizontally arranged along the lateral direction and its cylinder body is installed on the reaction column 301, and its movable end is arranged toward the rotating support 1 and fixedly connected to the bottom of the vertical support assembly 304.

[0069] It should be noted that the vertical support assembly 304 supports the bottom of the cylindrical steel column 6 and drives the cylindrical steel column 6 to move together. This process can be achieved by welding a support steel gasket that fits the outer curved surface of the cylindrical steel column 6 on the top of the vertical support assembly 304. Accordingly, the top of the support steel gasket is an arc-shaped friction plate to achieve the above-mentioned motion transmission.

[0070] The specific action process of the horizontal moving mechanism 3 is as follows: the second jack 302 extends to push the vertical support assembly 304 to move in the horizontal direction, the vertical support assembly 304 moves upward to support the lower part of the cylindrical steel column 6, and the vertical support assembly 304 drives the cylindrical steel column 6 to move in the horizontal direction relative to the rotating support 1. When the second jack 302 extends to the maximum limit, the vertical support assembly 304 moves downward, and the second jack 302 retracts. Then repeat the above pushing action; until the next position to be welded in the cylindrical steel column 6 moves between the two clamping mechanisms; then the vertical support assembly 304 and the second jack 302 retract in sequence.

[0071] By adding the vertical support assembly 304, the vertical support assembly 304 can not only transmit the horizontal movement of the second jack 302 to the cylindrical steel column 6, but also support the bottom of the cylindrical steel column 6 during the horizontal pushing process. Most importantly, from the above-mentioned action process, it can be seen that the lateral movement mechanism 3 can achieve multiple pushes of the cylindrical steel column 6 in one direction by changing its specific support position with the cylindrical steel column 6, thereby reducing the stroke of a single push of the lateral sliding assembly, and specifically, reducing the requirements for the telescopic stroke of the second jack 302. In addition, the setting height of the second jack 302 is reduced, so as to further avoid interference between the cylindrical steel column 6 and the second jack 302 when the cylindrical steel column 6 is delivered.

[0072] As an expansion solution, the vertical support assembly 304 includes a mobile base and a third jack. The mobile base is placed on the upper end surface of the roller bar 303, and the third jack is vertically horizontal and its cylinder body is installed on the upper end surface of the mobile base. The third jack is telescopic in the vertical direction. When pushing is required, the third jack moves upward to contact the lower part of the cylindrical steel column 6 and support it. Further preferably, the third jack is located in the center of the top of the mobile base. Among them, the mobile base adopts a rectangular steel beam with greater rigidity.

[0073] In order to facilitate the second jack 302 to push the vertical support assembly 304 to slide in the horizontal direction, the lateral movement mechanism 3 also includes a roller bar 303, which is arranged on the upper end surface of the mounting base 5, and the lower part of the vertical support assembly 304 is placed on the roller bar 303.

[0074] The roller bar 303 has no driving force input. By adding the roller bar 303, the sliding friction between the vertical support component 304 and the mounting base 5 is changed into rolling friction, thereby reducing the friction force of the vertical support component 304 sliding in the horizontal direction.

[0075] Specifically, the base of the roller strip 303 is a U-shaped channel steel member, the grooves of which are provided with rollers at a certain interval, and the bottom surface of the web of the U-shaped channel steel member is welded to the upper end surface of the mounting base 5 .

[0076] Further preferably, there are two groups of roller strips 303, and the two groups of roller strips 303 are longitudinally spaced and parallel and symmetrically distributed on the upper end surface of the mounting base 5. In order to improve the stability of the mobile base placed on the roller strips 303, the two ends of the lower part of the vertical support assembly 304 are respectively placed on the two groups of roller strips 303, and the width of the lower part of the vertical support assembly 304 is greater than the distance between two adjacent rollers in the roller strips 303.

[0077] Regarding the preferred embodiment of the rotating support 1, the rotating support 1 also includes an arc-shaped support 103 and a cylinder 102, the bottom of the arc-shaped support 103 is fixedly arranged, the cylinder 102 is rotatably mounted on the top of the arc-shaped support 103, and a plurality of lifting supports 101 are evenly distributed on the inner side wall of the cylinder 102. Among them, the lower end surface of the arc-shaped support 103 is fixedly mounted on the upper end surface of the mounting base 5.

[0078] Among them, the inner diameter of the cylinder 102 is much larger than the outer diameter of the cylindrical steel column 6. Specifically, the inner wall of the cylinder 102 is provided with six lifting supports 101, and the six lifting supports 101 have the same structure and their movements can be controlled separately. In the process of pushing the cylindrical steel column 6 in the horizontal direction, the cylindrical steel column 6 is supported by the lifting supports 101 at the bottom, and the horizontality of the axis of the cylindrical steel column 6 can be adjusted by controlling the relative extension distance of different lifting supports 101. After the cylindrical steel column 6 is horizontal and longitudinally moved to the welding position, the remaining lifting supports 101 are started to clamp the cylindrical steel column 6.

[0079] More specifically, the upper arc groove of the arc-shaped support 103 is provided with a first rotating roller 104, the first rotating roller 104 is connected to a motor, a high-power motor drives the first rotating roller 104 to rotate, the outer curved surface of the cylinder 102 contacts the first rotating roller 104, and the first rotating roller 104 drives the cylinder 102 to realize a 360° rotation around its own axis.

[0080] As a further preference for any of the above embodiments, the supporting device also includes a plurality of vertical supporting mechanisms 4 spaced apart between the rotating support 1 and the U-shaped supporting seat 2 , the upper portion of which is used to support the lower portion of the cylindrical steel column 6 .

[0081] Specifically, the vertical support mechanism 4 includes a fixed base 401 and a fourth jack 402. The fixed base 401 is fixedly connected to the mounting base 5. The fourth jack 402 is vertically arranged and its cylinder is installed on the upper end surface of the fixed base 401. When pushing is required, the fourth jack 402 moves upward to contact the lower part of the cylindrical steel column 6 to form support for it.

[0082] It should be noted that the top of the vertical support mechanism 4 is supported by the outer curved surface of the cylindrical steel column 6, that is, the fourth jack 402 is supported by the outer curved surface of the cylindrical steel column 6. The vertical support mechanism 4 can be used to support the cylindrical steel column 6 during horizontal movement and can also be used to support it during welding.

[0083] In order to facilitate the horizontal movement of the cylindrical steel column 6 relative to the vertical support mechanism 4, a polytetrafluoroethylene slide plate is welded on the top of the fourth jack 402 to reduce the friction between it and the cylindrical steel column 6.

[0084] During the movement and welding process, in order to achieve precise control of the horizontality of both ends of the cylindrical steel column 6, multiple vertical support mechanisms 4 are controlled by the same pressurized oil pump 9 to ensure that the bottoms of the cylindrical steel columns 6 are at the same height.

[0085] As an extended solution, during the moving process and the welding process, the vertical support mechanism 4 and the vertical support assembly 304 are controlled by the same pressurized oil pump 9 to ensure that the bottom of the cylindrical steel column 6 is at the same height position.

[0086] In other embodiments, the U-shaped support seat 2 is further provided with symmetrically arranged laser sensors 205, and the outer curved surface of the cylindrical steel column 6 is affixed with a reflective sticker 601 along its arc direction, and the reflective sticker 601 is arranged on both sides of the position where the cylindrical steel column 6 and the connecting steel 7 are to be welded, that is, Figure 4 The contact arc indicated by G2 in the figure, wherein the reflective sticker 601 can emit infrared light. The laser sensor 205 is used to detect the position of the reflective sticker 601 in the cylindrical steel column 6. Through the above-mentioned setting, the position to be welded in the cylindrical steel column 6 can be accurately identified. The identification process is roughly as follows: the laser sensor 205 emits a linear laser, which is reflected by the positioning reflective sticker 601. The laser sensor 205 receives the light source and makes an identification perception response, and sends a radio signal to the control system, and the control system controls the lateral moving mechanism 3 to stop the action. That is, when pushing from the current position to be welded to the next position to be welded, when the laser sensor 205 detects the reflective sticker 601, that is, when the laser sensor 205 is facing the reflective sticker 601 in the longitudinal direction, the lateral moving mechanism 3 stops pushing. The role of the laser sensor 205 and its implementation process adopt conventional technical means in the field, which will not be repeated here.

[0087] In order to accurately locate the position to be welded in the cylindrical steel column 6, the number of single-sided laser sensors 205 is preferably two. The two laser sensors 205 are spaced apart along the axis of the cylindrical steel column 6, and the two laser sensors 205 are respectively used to detect the positions of the reflective stickers 601 on both sides of the position to be welded of the cylindrical steel column 6.

[0088] As an extended solution, the welding device 8 is preferably a welding robot. Further preferably, the welding robot body is a six-degree-of-freedom robot. More preferably, the welding device 8 is preferably a welding robot with intelligent sensing and recognition of welds.

[0089] Specifically, the number of the welding devices 8 can be set to 2, and they are symmetrically arranged on both sides of the cylindrical steel column 6.

[0090] This embodiment also provides a method for using a welding device for a cross-shaped steel column including any of the above-mentioned embodiments. When welding a straight-shaped steel column, the method specifically includes the following steps:

[0091] S1, hoist the cylindrical steel column 6 horizontally and extend one end of it into the rotating support 1;

[0092] S2, maintaining horizontal lifting, the lateral moving mechanism 3 pushes the cylindrical steel column 6 to move in the horizontal direction, so that the cylindrical steel column 6 continues to extend into the rotating support 1;

[0093] S3, after the cylindrical steel column 6 is pushed to the preset position between the U-shaped support seats 2, the lifting support 101 in the rotating support 1 extends to support one end of the cylindrical steel column 6 in the circumferential direction; then two connecting steels 7 are symmetrically placed on both sides of the cylindrical steel column 6, wherein the web of the connecting steel 7 is arranged parallel to the axis of the cylindrical steel column 6;

[0094] S4, the clamping mechanism extends to clamp the outer ends of the two connecting steels 7; the welding device 8 welds the upper edge line of the contact surface between the cylindrical steel column 6 and the connecting steel 7, and then welds the contact arc line between the flanges on both sides of the connecting steel 7 and the outer curved surface of the cylindrical steel column 6, that is, arc welding is performed on the edge lines on both sides of the contact surface between the cylindrical steel column 6 and the connecting steel 7;

[0095] S5, after the preliminary welding of the connecting steel sections 7 and the cylindrical steel column 6 on both sides is completed, the clamping mechanism retracts, the rotating support 1 drives the cylindrical steel column 6 to rotate 180°, the clamping mechanism extends, and the welding device 8 performs linear welding on the upper edge line of the contact surface between the cylindrical steel column 6 and the connecting steel section 7; during the rotation process, the connecting steel section 7 on one side rotates 180° through the avoidance channel 203 to reach the other side.

[0096] When the cross-shaped steel column is welded, it is basically similar to the straight-shaped steel column welding, except that in S5, the rotating support 1 drives the cylindrical steel column 6 to rotate 180° instead of 270°. The specific steps of the replacement are as follows:

[0097] S51, the rotating support 1 first drives the cylindrical steel column 6 to rotate 90 degrees; then the two connecting steels 7 are symmetrically placed on both sides of the cylindrical steel column 6, and the clamping and welding process of step S4 is repeated. The welding process of S4 is repeated twice to form a cross-shaped connecting steel;

[0098] S52, the clamping mechanism retracts, and the rotating support 1 drives the cylindrical steel column 6 to continue rotating 90° in the same direction;

[0099] S53, the clamping mechanism extends, and the welding device 8 welds the upper edge line of the contact surface between the cylindrical steel column 6 and the connecting steel 7;

[0100] S54, repeat step S52;

[0101] Then continue to execute the remaining operations in S5.

[0102] The above process completes the welding of a single cross-shaped welding position of the steel column.

[0103] Among them, in the process of the horizontal moving mechanism 3 in S2 pushing the cylindrical steel column 6 to move horizontally, when multiple vertical support mechanisms 4 are provided between the rotating support 1 and the U-shaped support seat 2, in order to improve the support stability during the pushing process, when the horizontal moving mechanism 3 pushes the other end of the cylindrical steel column 6 to the top of one of the vertical support mechanisms 4, the vertical support mechanism 4 moves upward to support the other end of the cylindrical steel column 6, and then the lifting rope at one end of the cylindrical steel column 6 is removed, and the horizontal moving mechanism 3 continues to push until two-thirds of the length of the cylindrical steel column 6 passes through the rotating support 1, and then the lifting rope at the other end of the cylindrical steel column 6 is removed, and then the cylindrical steel column 6 continues to be pushed in the horizontal direction.

[0104] In steps S3 and S51, two connecting steels 7 are symmetrically placed on both sides of the cylindrical steel column 6; specifically, the two connecting steels 7 are symmetrically placed on both sides of the cylindrical steel column 6 by hoisting or manual placement. As can be seen from the above, since the mass and size of the connecting steels 7 are relatively small, they are easy to pick up and place.

[0105] It should be noted that the upper edge line of the contact surface between the cylindrical steel column 6 and the connecting steel 7 is welded, and the welding trajectory is referenced to Figure 4The welding trajectory G1 refers to is a straight line, and the welding trajectory is specifically the contact line between the top of the web of the connecting steel 7 and the outer curved surface of the cylindrical steel column 6. The connection between the left and right sides of the flange of the connecting steel 7 and the cylindrical steel column 6 is arc welding, that is, the outer sides of the left and right flanges of the connecting steel 7 are arc welds, and the welding trajectory is referenced to Figure 4 In the figure, G2 indicates that the end face of the connecting steel 7 and the outer curved surface of the cylindrical steel column 6 are in contact with each other, and the welding track indicated by G2 is an arc. Before welding, the contact end face of the connecting steel 7 needs to be ground so that the end face can better fit the outer curved surface of the cylindrical steel column 6.

[0106] It should be noted that when the surface of the cylindrical steel column 6 is affixed with a reflective sticker 601, in S4, the welding device 8 performs linear welding on the upper edge line of the contact surface between the cylindrical steel column 6 and the connecting steel 7, removes the reflective sticker 601, and then performs arc welding on the connection between the flanges on both sides of the connecting steel 7 and the cylindrical steel column 6, so as to better improve the welding quality.

[0107] As an expansion plan of the above-mentioned welding equipment or its use method, a temporary steel pad can be added inside the U-shaped support seat; the steel pad can support the bottom end of the connecting steel 7, thereby better ensuring that the axis of the connecting steel 7, the first jack 201 and the axis of the cylindrical steel column 6 are at the same level.

[0108] The volume and mass of the cylindrical steel column 6 are relatively large, and the clamping operation is relatively complicated. It can be seen from the above welding process that there is no need to clamp the cylindrical steel column 6 multiple times, which reduces the number of clamping times and improves welding efficiency. The specific performance is as follows: by setting the avoidance channel 203, the rotating support 1 can drive the preliminarily welded connecting steel 7 to rotate 180°, so as to realize the flipping of the contact surface between the web of the connecting steel 7 and the rotating support 1, so that the welding device 8 can weld the upper and lower end faces of the web of the same connecting steel 7 on both sides of symmetry, improve the symmetry of welding, and greatly improve the stress conditions of the welding process. Moreover, the welding operability is improved, and the welding device 8 does not need to weld the lower end face of the web of the welded connecting steel 7. The operating space at the lower end face is relatively small, and the operation is limited. Furthermore, based on the rotating support 1 driving the welded connecting steel 7 to rotate 90°, the connecting steel 7 that has been preliminarily welded or completed can be placed in the avoidance channel 203, and another pair of connecting steels that are perpendicular to the previous pair of connecting steels are arranged on both sides of the cylindrical steel column 6. After the welding device 8 clamps and positions a pair of connecting steels 6, it continues to weld, thereby further completing the welding of the cross-shaped steel column.

[0109] When the welding of a certain position of the cylindrical steel column 6 is completed, the lateral moving mechanism 3 continues to push it to the next welding position in the horizontal direction. The above welding process is repeated until all the positions to be welded of the cylindrical steel column 6 are welded, and the tail end of the cylindrical steel column 6 is located in the rotating support 1; or the lateral moving pushing mechanism 3 continues to push the steel column 6 until its tail end is located in the rotating support 1, and then the cylindrical steel column 6 is lifted by a crane or other lifting equipment.

[0110] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

Claims

1. A cross-shaped welding device, characterized in that: The invention comprises a supporting device and a welding device (8), wherein the welding device (8) is used to weld four connecting steels (7) on a cylindrical steel column (6), and the supporting device is used to support and position the cylindrical steel column (6). The supporting device comprises a mounting base (5), and the mounting base (5) is provided with a lateral moving mechanism (3) distributed at intervals in the horizontal direction, a rotating support (1) and a U-shaped supporting seat (2), wherein: The rotating support (1) is provided with a plurality of retractable lifting supports (101) spaced apart along its circumferential direction, which are used to support the cylindrical steel column (6) in the circumferential direction and drive the cylindrical steel column (6) to rotate around its own axis; The U-shaped support seat (2) is used to tighten and position the two connecting steels (7) on the opposite sides of the cylindrical steel column (6) to be welded and its surface, and two side walls of the U-shaped support groove in the U-shaped support seat (2) are respectively provided with two clamping mechanisms for tightening and positioning; the bottom of the U-shaped support seat (2) is processed with an avoidance channel (203) for providing space required for the connecting steel (7) to rotate; The transverse moving mechanism (3) comprises a transverse sliding assembly and a vertical support assembly (304), wherein the lower portion of the vertical support assembly (304) is fixedly connected to the transverse sliding assembly, the transverse sliding assembly can drive the vertical support assembly (304) to move along the axis of the cylindrical steel column (6), and the vertical support assembly (304) can telescopically support the cylindrical steel column (6) in the vertical direction.

2. The cross-shaped steel column welding equipment according to claim 1, characterized in that: The U-shaped support seat (2) comprises two symmetrically arranged L-shaped reaction force walls (202), and the two L-shaped reaction force walls (202) are arranged at a relative interval to form an avoidance channel (203).

3. The cross-shaped steel column welding equipment according to claim 2, characterized in that: The top surfaces of the toe plates at both ends of the two L-shaped reaction walls (202) are fixedly connected by two connecting and fixing plates (204) distributed at intervals in the transverse direction, and the avoidance channel (203) is located between the two connecting and fixing plates (204).

4. The cross-shaped steel column welding equipment according to claim 2, characterized in that: The clamping mechanism comprises a first jack (201) arranged horizontally in the longitudinal direction, and a cylinder body of the first jack (201) is installed on an L-shaped reaction wall (202).

5. The cross-shaped steel column welding equipment according to any one of claims 1 to 4, characterized in that: The transverse sliding assembly comprises a fixed reaction column (301), a second jack (302) is horizontally arranged in the transverse direction and its cylinder body is installed on the reaction column (301), and its movable end is arranged toward the rotating support (1) and fixedly connected to the lower part of the vertical support assembly (304).

6. The cross-shaped steel column welding equipment according to claim 5, characterized in that: The lateral movement mechanism (3) further comprises a roller bar (303), and the bottom of the vertical support assembly (304) is placed on the roller bar (303).

7. The cross-shaped steel column welding equipment according to any one of claims 1 to 4, characterized in that: The rotating support (1) further comprises an arc-shaped support (103) and a cylinder (102); the bottom of the arc-shaped support (103) is fixedly arranged, the cylinder (102) is rotatably mounted on the top of the arc-shaped support (103), and a plurality of lifting supports (101) are arranged on the inner side wall of the cylinder (102).

8. The cross-shaped steel column welding equipment according to any one of claims 1 to 4, characterized in that: The support device further comprises a plurality of vertical support mechanisms (4) spaced apart between the rotating support (1) and the U-shaped support seat (2), which are used to support the lower part of the cylindrical steel column (6); And / or the two side walls of the U-shaped support groove in the U-shaped support seat (2) are also respectively provided with laser sensors (205); the outer curved surface of the cylindrical steel column (6) is affixed with a reflective sticker (601) along its arc direction; the reflective sticker (601) is arranged on both sides of the contact surface between the cylindrical steel column (6) and the connecting steel (7); and the laser sensor (205) is used to detect the position of the reflective sticker (601) in the cylindrical steel column (6).

9. A method for using the cross-shaped steel column welding equipment according to any one of claims 1 to 8, characterized in that: The steps include: S1, hoist the cylindrical steel column (6) horizontally and extend one end of the cylindrical steel column into the rotating support (1); S2, maintaining horizontal lifting, the lateral moving mechanism (3) pushes the cylindrical steel column (6) to move in the horizontal direction, so that the cylindrical steel column (6) continues to extend into the rotating support (1); S3, after the cylindrical steel column (6) is pushed to the preset position between the U-shaped support seats (2), the lifting top support (101) in the rotating support (1) is extended to support one end of the cylindrical steel column (6) in the circumferential direction; then two connecting steels (7) are symmetrically placed on both sides of the cylindrical steel column (6), wherein the web of the connecting steel (7) is arranged parallel to the axis of the cylindrical steel column (6); S4, the clamping mechanism extends to clamp the outer ends of the two connecting steels (7); the welding device (8) welds the upper edge line of the contact surface between the cylindrical steel column (6) and the connecting steel (7), and then welds the contact arc line between the flanges on both sides of the connecting steel (7) and the outer curved surface of the cylindrical steel column (6); S5, after the preliminary welding of the connecting steel sections (7) and the cylindrical steel column (6) on both sides is completed, the clamping mechanism retracts, the rotating support (1) drives the cylindrical steel column (6) to rotate 180°, the clamping mechanism extends, and the welding device (8) welds the upper edge line of the contact surface between the cylindrical steel column (6) and the connecting steel section (7); during the rotation process, the connecting steel section (7) on one side rotates 180° through the avoidance channel (203) to reach the other side.

10. A method for using the cross-shaped steel column welding equipment according to any one of claims 9, characterized in that: In the S5, the rotating support (1) drives the cylindrical steel column (6) to rotate 180° instead of 270°, specifically, S51, the rotating support (1) first drives the cylindrical steel column (6) to rotate 90 degrees; then the two connecting steels (7) are symmetrically placed on both sides of the cylindrical steel column (6), and the clamping and welding process of step S4 is repeated. The welding process of S4 is repeated twice to form a cross-shaped steel column; S52, the clamping mechanism retracts, and the rotating support (1) drives the cylindrical steel column (6) to continue rotating 90° in the same direction; S53, the clamping mechanism extends, and the welding device (8) welds the upper edge line of the contact surface between the cylindrical steel column (6) and the connecting steel (7); S54, repeat step S52; Then continue to execute the remaining operations in S5.

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