Variable cross-section assembling machine for H steel welding

Abstract

The invention relates to the technical field of welding assembling machines, and provides a variable cross-section assembling machine for H steel welding, which comprises a rack and a straight edge close-up dead stop, the straight edge close-up dead stop is arranged on the rack and is used for abutting against a straight edge longitudinal plate, and a web positioning rack is arranged on the rack in a lifting and transverse moving manner and is used for supporting a web. The pressing wheel ascends and descends relative to the rack and transversely moves and is used for pressing the variable-cross-section longitudinal plate on the web, and the second pressing piece ascends and descends relative to the rack and transversely moves and is used for pressing the web. By means of the technical scheme, the problem that in the prior art, H steel welding and assembling precision is poor is solved.

Description

Technical Field

[0001] The invention relates to the technical field of welding assembly machines, and in particular to a variable-section assembly machine for H-steel welding. Background Art

[0002] The early assembly of variable-section H-beams mainly relied on manual operation. Workers relied on experience and simple manual tools to position and fix the web, straight-edge longitudinal plate and variable-section longitudinal plate. However, this method has great limitations. Due to the lack of precise positioning and fixing means, during the welding process, the components are easily displaced due to thermal deformation caused by welding, making it difficult to ensure welding accuracy. Problems such as component misalignment and loose connections often occur, resulting in uneven quality of the products produced and a high defective rate, which not only wastes raw materials and production costs, but also affects the production efficiency and economic benefits of the enterprise.

[0003] In order to improve assembly accuracy, some companies use mold assembly. Mold assembly can indeed improve product accuracy to a certain extent. By positioning and fixing each component through the mold, errors caused by human factors can be reduced. However, mold production is expensive and has poor flexibility. Variable-section H-beams come in a variety of specifications, and different projects may require products of different specifications. Once the product specifications change, the mold needs to be remade, which is not only time-consuming and labor-intensive, but also prolongs the product production cycle and greatly increases production costs. For some small-batch, multi-specification production orders, the mold assembly method can hardly meet production needs, limiting the competitiveness of enterprises in the market.

[0004] In addition, whether it is manual assembly or mold assembly, it is difficult to effectively deal with the problem of thermal deformation of components during the welding process. Thermal deformation will cause the size and shape of the components to change, further affecting the welding quality, making it difficult to ensure the quality stability of the product. Moreover, the traditional assembly method has high technical requirements for operators, the training cost of skilled workers is high, and labor costs have also become an important part of the company's production costs. Therefore, the development of an efficient, accurate, flexible assembly machine that can adapt to the production of H-beams with variable cross-sections of various specifications has become an urgent problem to be solved in the industry. Summary of the invention

[0005] The invention provides a variable-section assembly machine for H-steel welding, which solves the problem of poor H-steel welding assembly precision in the related art.

[0006] The technical solution of the present invention is as follows: A variable-section assembly machine for H-steel welding, used for assembling a variable-section web plate of a variable-section H-steel with a straight-side longitudinal plate and a variable-section longitudinal plate, comprising: frame; A straight edge abutment stop, the straight edge abutment stop being arranged on the frame and being used for abutting against the straight edge longitudinal plate; A web plate positioning rack, which is arranged on the frame for lifting and lateral movement and is used to support the web plate with a variable cross-section; A clamping wheel, the clamping wheel is arranged to be lifted and lowered relative to the frame and to be laterally movable, and is used to press the variable-section longitudinal plate on one side of the variable-section web plate; The second pressing member is arranged to be lifted and lowered relative to the frame and to be laterally movable, and is used for pressing the variable-section web.

[0007] As a further technical solution, it also includes: A walking frame, the walking frame is movably arranged relative to the frame; A clamping cross hook, wherein the clamping cross hook is movably arranged on the walking frame, and the clamping wheel is lifted and lowered on the clamping cross hook; The first linear drive member, there are two of the first linear drive members, one of the first linear drive members is arranged to be laterally movable on the walking frame, and the moving trajectory of the movable first linear drive member is parallel to the shape of the variable-section longitudinal plate, and the other first linear drive member is fixedly arranged on the clamping cross hook, and the second clamping member is arranged on the output end of the first linear drive member.

[0008] As a further technical solution, it also includes: The second linear driving member is arranged on the walking frame, and the second linear driving member is used to drive the clamping cross hook to move. The second clamping member is configured so that after the clamping cross hook is lifted or lowered, the second clamping member abuts against or cancels the abutment with the variable-section longitudinal plate.

[0009] As a further technical solution, the clamping wheel is a rotating wheel, and the second clamping member is a universal wheel.

[0010] As a further technical solution, the frame has a slide rail and a positioning rack, an operation area is formed between the slide rail and the positioning rack, the walking frame is slidably arranged on the slide rail, and the straight edge is set against the positioning rack.

[0011] As a further technical solution, the straight edge close to the dead stop has a clearance groove, and further comprises: An electromagnet is arranged in the clearance groove and is used to fix the straight-edge longitudinal plate.

[0012] As a further technical solution, the positioning rack has a chute for giving way, and further comprises: The support member is movably arranged in the giving way chute, and the web positioning rack is lifted and lowered on the support member.

[0013] As a further technical solution, the web positioning material rack has a fixing portion and a scale portion, the support member has a guide groove and a fixing groove, the web positioning material rack is simultaneously lifted and lowered in the guide groove and the fixing groove, the side wall of the fixing groove has a threaded hole, and the threaded holes are arranged in a plurality of circles, and further includes: A fastening bolt is threadedly disposed in the threaded hole and is used to fix the fixing portion.

[0014] As a further technical solution, the fixing groove has a support portion, the fixing portion has a plurality of tapered grooves arranged in sequence, the tapered groove has a large end and a small end, and further comprises: A fixed cone piece is swingably arranged on the support portion. There are several fixed cone pieces arranged in a circle. The fixed cone piece has a clamping portion, which is used to abut against the bottom of the large end.

[0015] As a further technical solution, the fastening bolt is located on one side of the fixed cone piece, and the fastening bolt is configured to push the fixed cone piece to swing after being tightened. The clamping portion abuts against the bottom of the large end, and the bottom of the fixed cone piece has a semicircular portion, and the diameter of the semicircular portion is equal to the width of the support portion.

[0016] The working principle and beneficial effects of the present invention are: In the present invention, the movable clamping wheel and the second clamping member can assemble the initially positioned web with the straight-edge longitudinal plate and the variable-section longitudinal plate. During the assembly process, they can quickly apply pressure to one side of the welding position of each component to make it fit tightly, greatly shortening the assembly time and improving production efficiency. In the welding process, the clamping wheel and the second clamping member can play a more critical role. They can clamp one side of the welding position in real time, provide stable support for welding, effectively avoid quality problems such as cold welding and desoldering caused by loose components during welding, and significantly improve the welding quality. In addition, its moving speed can also change with the change of the operator's welding speed, realizing precise dynamic coordination. The operator does not need to interrupt welding due to waiting for the clamping member to move, nor does he need to worry about the clamping member moving too fast or too slow to affect the welding process, making the welding work smoother and more efficient, further ensuring the stability of product quality, while also reducing the technical requirements for operators and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0018] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 A is a schematic diagram of the enlarged structure of the middle part; Figure 3 for Figure 1 A schematic diagram of the enlarged structure of B; Figure 4 It is a schematic diagram of the top view structure of the present invention; Figure 5 It is a schematic diagram of the support member and related structures in the present invention; Figure 6 for Figure 5 Schematic diagram of the enlarged structure of C in the middle; In the figure: web -01, straight edge longitudinal plate -02, variable cross-section longitudinal plate -03, frame -1, slide rail -101, positioning rack -102, operating area -103, give way slide groove -104, straight edge close to dead stop -2, give way groove -201, web positioning rack -3, fixing part -301, scale part -302, large end -303, small end -304, conical groove -305, clamping wheel -4, second clamping part -5, walking frame -6, clamping cross hook -7, first linear drive part -8, second linear drive part -9, electromagnet -10, support part -11, guide groove -1101, fixing groove -1102, threaded hole -1103, fastening bolt -12, support part -1104, fixing cone piece -13, clamping part -1301, semicircular part -1302. DETAILED DESCRIPTION In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0019] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0020] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0022] Reference Figure 1 to Figure 6 , which is the first embodiment of the present invention, proposes a variable-section assembly machine for H-steel welding, which is used to assemble the straight-side longitudinal plate 02 and the variable-section longitudinal plate 03 of the variable-section H-steel to both sides of the variable-section web 01, including a frame 1, a straight-side abutment stop 2 is arranged on the frame 1, and is used to abut against the straight-side longitudinal plate 02, a web positioning material frame 3 is lifted and laterally moved on the frame 1, and is used to support the variable-section web 01, a clamping wheel 4 is lifted and laterally moved relative to the frame 1, and is used to press the variable-section longitudinal plate 03 on one side of the variable-section web 01, and a second clamping member 5 is lifted and laterally moved relative to the frame 1, and is used to clamp the variable-section web 01.

[0023] In this embodiment, the straight edge against the dead stop 2 is set on the frame 1, which is mainly used to closely abut against the straight edge longitudinal plate 02. At the beginning of the assembly operation, after the straight edge longitudinal plate 02 is placed in the specified position, the straight edge against the dead stop 2 comes into play to provide a positioning reference for the straight edge longitudinal plate 02. It effectively limits the displacement of the straight edge longitudinal plate 02 in the horizontal and vertical directions by closely fitting with the straight edge longitudinal plate 02, ensuring the accuracy of its angle and position. On a large-scale H-steel production line, the stable positioning effect of the straight edge against the dead stop 2 can significantly improve production efficiency and reduce the defective rate caused by positioning deviation. The web positioning material rack 3 on the frame 1 realizes flexible movement and lifting functions. When facing the production tasks of variable-section H-steel of different specifications, the web positioning material rack 3 can quickly adjust its position and height according to the size and shape requirements of the variable-section web 01. By moving horizontally, it can accurately find the best position to support the variable-section web 01, ensuring that the variable-section web 01 is evenly supported during the entire assembly process; and the lifting function can accurately control the height of the variable-section web 01, so that it is on the same horizontal plane as the straight-edge longitudinal plate 02 and the variable-section longitudinal plate 03, creating conditions for subsequent assembly operations. When producing variable-section webs 01 of different thicknesses, the web positioning rack 3 can be easily adjusted in height through lifting operations to ensure that the variable-section web 01 is accurately positioned and fits tightly with other components to avoid gaps or misalignment, thereby ensuring assembly quality. At the same time, when changing H-steel production tasks of different specifications, the rapid movement and lifting functions of the web positioning rack 3 can greatly shorten the adjustment time of the equipment and improve production efficiency.

[0024] The clamping wheel 4 has the dual functions of moving and lifting relative to the frame 1. Its main task is to firmly press the variable-section longitudinal plate 03 onto the variable-section web 01 from the side. During the assembly process, after the variable-section longitudinal plate 03 is placed on one side of the variable-section web 01, the clamping wheel 4 drops rapidly, and moves laterally after dropping, exerting pressure on the variable-section longitudinal plate 03, so that the variable-section longitudinal plate 03 and the variable-section web 01 fit tightly. The clamping wheel 4 is used to be pressed on one side of the position to be welded. Its movable characteristics enable it to flexibly adjust the clamping position according to the complex shape and size of the variable-section longitudinal plate 03, and move in real time with the movement of the welder to ensure that pressure is evenly applied during the entire welding process of the variable-section longitudinal plate 03. This function is crucial to ensuring the connection strength and stability between the variable-section longitudinal plate 03 and the variable-section web 01, because only under the action of uniform pressure can the two be tightly combined to form a strong structural connection. Avoid material loss caused by the irreparable thermal deformation of the variable-section longitudinal plate 03 during welding. The second clamping member 5 also realizes the lifting and moving functions on the frame 1. Its main function is to clamp the variable-section web 01 to ensure that the variable-section web 01 is stably abutted in the welding position during the entire assembly process. During the assembly process of the variable-section web 01 with the straight-edge longitudinal plate 02 and the variable-section longitudinal plate 03, the second clamping member 5 descends to apply stable pressure to the variable-section web 01 and fix it tightly in a suitable position. Its movable function enables it to flexibly adjust the clamping position according to the size and shape of the variable-section web 01, ensuring that the variable-section web 01 can be effectively fixed when welding at various locations. This is of great significance for preventing the variable-section web 01 from displacement or deformation during the assembly process, because only when the variable-section web 01 remains stable can the assembly accuracy and quality of the entire H-steel be guaranteed.

[0025] With existing technology, workers need to rely on experience and manual tools to position and fix each component. Thermal deformation may occur due to welding, making it difficult to ensure welding accuracy, and it is easy to cause problems such as component misalignment and loose connections, resulting in uneven product quality. Although mold assembly has improved accuracy to a certain extent, the mold production cost is high and the flexibility is poor. It is difficult to adapt to the production needs of H-beams with variable cross-sections of various specifications. Once the product specifications change, the mold often needs to be remade, which is time-consuming and labor-intensive.

[0026] In contrast, the movable clamping wheel 4 and the second clamping member 5 can assemble the initially positioned variable-section web 01 with the straight-edge longitudinal plate 02 and the variable-section longitudinal plate 03. During the assembly process, they can quickly apply pressure to one side of the welding position of each component to make it fit tightly, greatly shortening the assembly time and improving production efficiency. In the welding process, the clamping wheel 4 and the second clamping member 5 can play a more critical role. They can clamp one side of the welding position in real time, provide stable support for welding, effectively avoid quality problems such as cold welding and desoldering caused by loose components during welding, and significantly improve the welding quality. In addition, its moving speed can also change with the changes in the operator's welding speed, achieving precise dynamic coordination. The operator does not need to interrupt welding while waiting for the clamping member to move, nor does he need to worry about the clamping member moving too fast or too slow to affect the welding process, making the welding work smoother and more efficient, further ensuring the stability of product quality, while also reducing the technical requirements for operators and reducing labor costs.

[0027] Furthermore, it also includes a walking frame 6, which is movably arranged relative to the frame 1, a clamping cross hook 7 is movably arranged on the walking frame 6, a clamping wheel 4 is lifted and lowered on the clamping cross hook 7, there are two first linear drive members 8, one first linear drive member 8 is laterally movably arranged on the walking frame 6, a moving trajectory of the movable first linear drive member 8 is parallel to the shape of the variable-section longitudinal plate 03, another first linear drive member 8 is fixedly arranged on the clamping cross hook 7, and a second clamping member 5 is arranged on the output end of the first linear drive member 8.

[0028] In this embodiment, the shape of the variable-section longitudinal plate 03 is relatively complex after welding, with local bends or undulations. The clamping cross hook 7 can clamp and fine-tune the position during movement, allowing the clamping wheel 4 to accurately press on the outside of the variable-section web 01 and the variable-section longitudinal plate 03 to be welded, ensuring the effective transmission of the clamping force and improving the tightness of the assembly. Two first linear drive members 8, one is laterally movable on the walking frame 6, and the other is fixed on the clamping cross hook 7. The second clamping member 5 is arranged on the output end of the first linear drive member 8. This layout makes the movement of the second clamping member 5 more flexible and controllable. The moving trajectory of the movable first linear drive member 8 is parallel to the shape of the variable-section longitudinal plate 03, which means that during the assembly process, the second clamping member 5 can be moved and clamped along the contour of the variable-section longitudinal plate 03. When the shape of the variable cross-section longitudinal plate 03 is irregular, the second clamping member 5 can adjust the position and clamping force in real time according to the shape change, ensuring that the variable cross-section longitudinal plate 03 and the variable cross-section web 01 can fit tightly in the entire length and width direction, greatly improving the assembly accuracy and quality. At the same time, the first linear drive member 8 can also quickly respond to the operator's instructions, realize fast clamping and loosening actions, improve assembly efficiency, and adapt to the needs of different production rhythms.

[0029] Furthermore, it also includes a second linear drive member 9, which is arranged on the walking frame 6. The second linear drive member 9 is used to drive the clamping cross hook 7 to move. The second clamping member 5 is configured so that after the clamping cross hook 7 is raised or lowered, the second clamping member 5 abuts against or cancels the abutment with the variable-section longitudinal plate 03.

[0030] In this embodiment, the second linear drive component 9 is arranged on the walking frame 6. When the variable-section H-steel needs to be assembled, the operator can accurately adjust the position of the clamping cross hook 7 according to the specific shape and size of the variable-section longitudinal plate 03 by controlling the second linear drive component 9.

[0031] The second clamping member 5 is closely matched with the clamping cross hook 7 and the second linear driving member 9. When the clamping cross hook 7 moves under the drive of the second linear driving member 9, the second clamping member 5 can achieve accurate contact or cancel the contact with the variable cross-section longitudinal plate 03. In the early stage of assembly, the second clamping member 5 can be moved to a suitable position to avoid unnecessary contact with the variable cross-section longitudinal plate 03, which affects the initial positioning of the components.

[0032] The rapid response capability of the second linear drive member 9 can realize the rapid movement of the clamping hook 7, thereby driving the second clamping member 5 to be quickly in place, which greatly improves the assembly efficiency and adapts to the needs of different production rhythms. Moreover, its precise displacement control capability ensures that the second clamping member 5 can accurately abut against the variable cross-section longitudinal plate 03 at the predetermined position every time.

[0033] Furthermore, the pressing wheel 4 is a rotating wheel, and the second pressing member 5 is a universal wheel.

[0034] In this embodiment, the clamping wheel 4 is set as a rotating wheel, and the second clamping member 5 is set as a universal wheel, which brings many unique advantages to the variable-section assembly machine for H-steel welding.

[0035] The rotating wheel acts as a clamping wheel 4, and in the process of pressing the variable-section longitudinal plate 03 onto the variable-section web 01, it exhibits excellent dynamic clamping performance. Since it can rotate, the friction between the variable-section longitudinal plate 03 and the variable-section longitudinal plate 03 can be reduced during the movement. When the first linear drive member 8 drives the rotating wheel to move along the shape of the variable-section longitudinal plate 03, the rotating wheel can smoothly fit the contour of the variable-section longitudinal plate 03 and continuously and stably apply pressure. This dynamic clamping method not only ensures a tight fit between the variable-section longitudinal plate 03 and the variable-section web 01, but also effectively avoids scratches or displacements on the surface of the variable-section longitudinal plate 03 due to excessive friction, thereby ensuring assembly quality.

[0036] The universal wheel as the second clamping member 5 greatly enhances the flexibility of the clamping operation. The universal wheel can rotate in any direction, which enables it to quickly and accurately adjust its direction to abut against the variable cross-section longitudinal plate 03 after the clamping hook 7 moves. Whether it is facing the complex shape of the variable cross-section longitudinal plate 03 or the clamping needs at different positions, the universal wheel can easily cope with it. For example, in the area where the variable cross-section longitudinal plate 03 has bends or corners, the universal wheel can rotate freely, always maintain close contact with the variable cross-section longitudinal plate 03, apply pressure evenly, and avoid the situation of insufficient local clamping.

[0037] Furthermore, the frame 1 has a slide rail 101 and a positioning rack 102 , an operation area 103 is formed between the slide rail 101 and the positioning rack 102 , the walking frame 6 is slidably set on the slide rail 101 , and the straight edge close to the dead stop 2 is set on the positioning rack 102 .

[0038] In this embodiment, the operation area 103 formed between the slide rail 101 and the positioning rack 102 rationally plans the assembly space. The various components are coordinated in this area in an orderly manner, and the assembly process of the variable-section web 01, the straight-edge longitudinal plate 02 and the variable-section longitudinal plate 03 is clearer and smoother. At the same time, the existence of the operation area 103 also facilitates the operator to observe and operate, improving the convenience and safety of the overall operation.

[0039] Furthermore, the straight-side dead stop 2 has a clearance groove 201 and also includes an electromagnet 10 , which is arranged in the clearance groove 201 and is used to fix the straight-side longitudinal plate 02 .

[0040] In this embodiment, the clearance groove 201 of the straight edge against the dead stop 2 provides space for the setting of the electromagnet 10. The electromagnet 10 is arranged in the clearance groove 201, mainly used to fix the straight edge longitudinal plate 02, which brings new stability and convenience to the whole assembly process. During the assembly process, the straight edge longitudinal plate 02 is placed at the straight edge against the dead stop 2. When the electromagnet 10 is energized, a strong magnetic field will be generated, thereby firmly adsorbing the straight edge longitudinal plate 02. This fixing method is more flexible and reliable than the traditional mechanical contact fixing. On the one hand, through magnetic adsorption, it can ensure that the straight edge longitudinal plate 02 and the straight edge against the dead stop 2 are closely fitted, avoiding the gap or position offset that may be caused by physical contact, and ensuring the position accuracy of the straight edge longitudinal plate 02 during the assembly process. On the other hand, the fixing method of the electromagnet 10 can be flexibly controlled according to actual needs. When the position of the straight edge longitudinal plate 02 needs to be adjusted, it can be easily achieved by simply cutting off the power supply of the electromagnet 10 without complicated mechanical operations, which greatly improves the convenience of operation. In actual operation, when the straight-edge longitudinal plate 02 is placed on the straight edge close to the dead stop 2, the electromagnet 10 will quickly adsorb and fix it, providing a stable foundation for the subsequent assembly of the variable-section web plate 01 and the variable-section longitudinal plate 03.

[0041] Furthermore, the positioning rack 102 has a clearance slot 104 and also includes a support member 11. The support member 11 is movably arranged in the clearance slot 104, and the web positioning rack 3 is lifted and lowered on the support member 11.

[0042] In this embodiment, the support member 11 is movably arranged in the clearance chute 104 of the positioning rack 102, and the web positioning rack 3 is lifted and lowered on the support member 11. This structural design gives the web positioning rack 3 a more flexible height adjustment capability. When assembling variable-section H-steel of different specifications, the position of the variable-section web 01 can be initially positioned by moving the support member 11 in the clearance chute 104 according to the thickness of the variable-section web 01 and the docking requirements with the straight-edge longitudinal plate 02 and the variable-section longitudinal plate 03, and then the lifting function of the web positioning rack 3 itself is used for fine adjustment to ensure that the variable-section web 01 can be accurately in the appropriate assembly position, and can be closely fitted with other components to improve assembly accuracy.

[0043] The movement of the support member 11 in the clearance chute 104 is stable, and provides a solid bottom support for the web positioning rack 3. When the web positioning rack 3 carries the variable-section web 01, the support member 11 can disperse the weight to avoid shaking or displacement caused by local uneven force, thereby ensuring the stability of the variable-section web 01 during the entire assembly process. Especially when the clamping wheel 4 and the second clamping member 5 perform the clamping operation on the variable-section longitudinal plate 03 and the variable-section web 01, the stable support can effectively resist the pressure, prevent the variable-section web 01 from deforming, and ensure the assembly quality. The design of the clearance chute 104 cleverly utilizes the space of the positioning rack 102, so that the setting of the support member 11 and the web positioning rack 3 does not occupy too much external space.

[0044] This adjustable support structure enables the assembly machine to adapt to the production of more variable-section H-steel with different specifications. Whether it is the change in the thickness of the variable-section web 01 or the difference in the overall H-steel size, the assembly requirements can be met by adjusting the position of the support 11 and the web positioning rack 3, further expanding the application range of the equipment and improving the versatility and economy of the equipment.

[0045] Furthermore, the web positioning material rack 3 has a fixing portion 301 and a scale portion 302, the support member 11 has a guide groove 1101 and a fixing groove 1102, the web positioning material rack 3 is simultaneously raised and lowered in the guide groove 1101 and the fixing groove 1102, the side wall of the fixing groove 1102 has a threaded hole 1103, the threaded holes 1103 are arranged in a circle, and also include a fastening bolt 12, the fastening bolt 12 is threadedly arranged in the threaded hole 1103, and the fastening bolt 12 is used to fix the fixing portion 301.

[0046] In this embodiment, the fixing part 301 and the scale part 302 of the web positioning rack 3 cooperate with the guide groove 1101 and the fixing groove 1102 of the support member 11, which greatly improves the accuracy of height adjustment. The web positioning rack 3 is raised and lowered in the guide groove 1101 and the fixing groove 1102, and the guide groove 1101 plays a role of stable guidance, ensuring that the web positioning rack 3 will not deviate during the lifting process. The setting of the scale part 302 allows the operator to intuitively understand the height position of the web positioning rack 3, so as to accurately adjust the height of the variable-section web 01 according to the different specifications of the variable-section H steel, and ensure that it is docked with the straight-edge longitudinal plate 02 and the variable-section longitudinal plate 03.

[0047] Several threaded holes 1103 are arranged circumferentially on the side wall of the fixing groove 1102, which are used in conjunction with the fastening bolts 12 to provide a flexible and stable fixing method for the web positioning rack 3. When the web positioning rack 3 is adjusted to a suitable height, the operator can select the threaded hole 1103 at a suitable position according to the actual situation, screw in the fastening bolts 12, and firmly fix the fixing part 301. The threaded holes 1103 arranged circumferentially make it possible to find the best fixing point regardless of the assembly condition, ensuring that the web positioning rack 3 will not loosen when carrying the variable-section web 01, providing a reliable support foundation for the subsequent assembly process.

[0048] The operator can quickly complete the positioning preparation work of the variable-section web 01 by lifting and lowering the web positioning rack 3 in the guide groove 1101 and the fixed groove 1102, judging the height with the help of the scale part 302, and then tightening the fastening bolts 12 in the threaded holes 1103. This greatly shortens the preparation time before assembly, improves the overall assembly efficiency, and meets the needs of different production rhythms.

[0049] The reliable fixing method and precise height adjustment function reduce the assembly problems caused by the instability or inaccurate height of the web positioning rack 3, and reduce the defective rate. At the same time, the stable support structure also extends the service life of the equipment, reduces the equipment maintenance cost, and improves the reliability and economy of the equipment.

[0050] Furthermore, the fixing groove 1102 has a supporting portion 1104, the fixing portion 301 has a plurality of conical grooves 305 arranged in sequence, the conical groove 305 has a large end 303 and a small end 304, and also includes a fixed cone piece 13, the fixed cone piece 13 is swingably set on the supporting portion 1104, there are a plurality of fixed cone pieces 13, which are arranged in a circle, and the fixed cone piece 13 has a clamping portion 1301, which is used to abut against the bottom of the large end 303.

[0051] In this embodiment, the tapered grooves 305 arranged in sequence on the fixing part 301 cooperate with the circumferentially arranged and swingable fixed cone pieces 13 to achieve accurate positioning of the web positioning rack 3. The clamping part 1301 of each fixed cone piece 13 can be accurately inserted into the corresponding tapered groove 305. Since the tapered groove 305 has a specific large end 303 and a small end 304, a clear positioning reference is provided for the fixed cone piece 13. This enables the web positioning rack 3 to be accurately at the required height and position when supporting the web 01, ensuring the assembly accuracy of the web 01 with the straight-edge longitudinal plate 02 and the variable-section longitudinal plate 03.

[0052] When the fixing cone 13 swings, its clamping portion 1301 contacts the bottom of the large end 303, and multiple circumferentially arranged fixing cones 13 apply fixing forces to the fixing portion 301 from different directions. This multi-point, circumferential fixing method can evenly disperse the pressure generated by the web 01 and related components, and avoid loosening or displacement caused by excessive force on a single point.

[0053] The plurality of tapered grooves 305 arranged in sequence on the fixing part 301 enable the web positioning rack 3 to be flexibly adjusted according to different usage requirements. The tapered grooves 305 at different positions can be adapted to webs 01 of different specifications. By selecting appropriate tapered grooves 305 to cooperate with the fixing cone piece 13, the assembly machine can adapt to the assembly of various types of variable-section H-shaped steels.

[0054] Furthermore, the fastening bolt 12 is located on one side of the fixed cone piece 13, and the fastening bolt 12 is configured to push the fixed cone piece 13 to swing after being tightened, and the clamping portion 1301 abuts against the bottom of the large end 303, and the bottom of the fixed cone piece 13 has a semicircular portion 1302, and the diameter of the semicircular portion 1302 is equal to the width of the support portion 1104.

[0055] In this embodiment, after the fastening bolts 12 are tightened, the fixing cone 13 is pushed to swing, achieving an efficient fixing synergistic effect. When it is necessary to fix the web positioning rack 3, the operator only needs to tighten the fastening bolts 12, and the thrust generated can drive the fixing cone 13 to swing, so that the clamping part 1301 is tightly abutted against the bottom of the large end 303 of the fixing part 301. This fixing method driven by the fastening bolts 12 is simple to operate and has a significant fixing effect. It can quickly fix the web positioning rack 3 firmly at the required height position, avoiding displacement or loosening due to vibration, external force and other factors during the assembly process, ensuring the stability of the variable-section web 01 support, and thus improving the assembly quality.

[0056] The diameter of the semicircular portion 1302 at the bottom of the fixed cone 13 is equal to the width of the support 1104. This design greatly enhances the fit and stability between the fixed cone 13 and the support 1104. The semicircular portion 1302 is adapted to the support 1104, and can provide a stable support point during the swinging process of the fixed cone 13 to prevent it from shaking or tilting, ensuring that the clamping portion 1301 and the bottom of the large end 303 of the fixed portion 301 always maintain a good abutment state. At the same time, the close fit between the semicircular portion 1302 and the support 1104 also helps to disperse the pressure generated during the fixing process, making the entire fixing structure more stable and reliable, and improving the stability and reliability of the device during long-term use.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A variable cross-section assembly machine for H-steel welding, used for assembling a straight-side longitudinal plate (02) and a variable cross-section longitudinal plate (03) of a variable cross-section H-steel to both sides of a variable cross-section web plate (01), characterized in that: include: Rack(1); A straight-side abutment stopper (2), the straight-side abutment stopper (2) being arranged on the frame (1) and being used for abutting against the straight-side longitudinal plate (02); A web plate positioning rack (3), the web plate positioning rack (3) being arranged on the frame (1) in a manner of lifting and lowering and lateral movement, and being used to support the variable-section web (01); A clamping wheel (4), the clamping wheel (4) being arranged to be lifted and lowered relative to the frame (1) and to be laterally movable, and being used to press the variable-section longitudinal plate (03) against one side of the variable-section web plate (01); A second pressing member (5), the second pressing member (5) is arranged to be lifted and lowered and laterally movable relative to the frame (1), and is used to press the variable-section web (01).

2. The variable cross-section assembly machine for H-steel welding according to claim 1, characterized in that: Also includes: A walking frame (6), the walking frame (6) being movably arranged relative to the frame (1); A clamping cross hook (7), wherein the clamping cross hook (7) is movably arranged on the walking frame (6), and the clamping wheel (4) is lifted and lowered on the clamping cross hook (7); A first linear drive member (8), wherein the first linear drive member (8) is provided in two pieces, one of the first linear drive members (8) is arranged to be laterally movable on the walking frame (6), and the moving track of the movable first linear drive member (8) is parallel to the shape of the variable-section longitudinal plate (03); the other first linear drive member (8) is fixedly arranged on the clamping cross hook (7), and the second clamping member (5) is arranged on the output end of the first linear drive member (8).

3. The variable cross-section assembly machine for H-steel welding according to claim 2, characterized in that: Also includes: A second linear drive member (9), the second linear drive member (9) is arranged on the walking frame (6), the second linear drive member (9) is used to drive the clamping cross hook (7) to move, and the second clamping member (5) is configured so that after the clamping cross hook (7) is raised or lowered, the second clamping member (5) abuts against or cancels the abutment with the variable-section longitudinal plate (03).

4. The variable cross-section assembly machine for H-steel welding according to claim 1, characterized in that: The pressing wheel (4) is a rotating wheel, and the second pressing member (5) is a universal wheel.

5. The variable cross-section assembly machine for H-steel welding according to claim 2, characterized in that: The frame (1) comprises a slide rail (101) and a positioning material rack (102), an operating area (103) is formed between the slide rail (101) and the positioning material rack (102), the walking frame (6) is slidably arranged on the slide rail (101), and the straight edge abutting dead stop (2) is arranged on the positioning material rack (102).

6. The variable cross-section assembly machine for H-steel welding according to claim 1, characterized in that: The straight edge abutting dead stop (2) has a clearance groove (201) and also includes: An electromagnet (10), the electromagnet (10) being arranged in the clearance groove (201) and being used for fixing the straight-edge longitudinal plate (02).

7. The variable cross-section assembly machine for H-steel welding according to claim 5, characterized in that: The positioning rack (102) has a clearance chute (104) and further comprises: A support member (11), wherein the support member (11) is movably disposed in the clearance slide groove (104), and the web positioning material rack (3) is lifted and disposed on the support member (11).

8. The variable cross-section assembly machine for H-steel welding according to claim 7, characterized in that: The web positioning material rack (3) has a fixing portion (301) and a scale portion (302), the support member (11) has a guide groove (1101) and a fixing groove (1102), the web positioning material rack (3) is simultaneously lifted and lowered in the guide groove (1101) and the fixing groove (1102), the guide groove (1101) and the fixing groove (1102) are interconnected, the side wall of the fixing groove (1102) has a threaded hole (1103), and the threaded holes (1103) are arranged in a circumferential manner, and further comprises: A fastening bolt (12), wherein the fastening bolt (12) is threadedly disposed in the threaded hole (1103), and the fastening bolt (12) is used to fix the fixing portion (301).

9. The variable cross-section assembly machine for H-steel welding according to claim 8, characterized in that: The fixing groove (1102) has a supporting portion (1104), the fixing portion (301) has a plurality of tapered grooves (305) arranged in sequence, the tapered grooves (305) have a large end (303) and a small end (304), and further comprises: A fixed cone piece (13), the fixed cone piece (13) being swingably arranged on the support portion (1104), the fixed cone piece (13) being a plurality of fixed cone pieces (13) arranged in a circle, the fixed cone piece (13) having a clamping portion (1301), the clamping portion (1301) being used to abut against the bottom of the large end (303).

10. The variable cross-section assembly machine for H-steel welding according to claim 9, characterized in that: The fastening bolt (12) is located on one side of the fixed cone piece (13), and the fastening bolt (12) is configured to push the fixed cone piece (13) to swing after being tightened, the clamping portion (1301) abuts against the bottom of the large end (303), and the bottom of the fixed cone piece (13) has a semicircular portion (1302), and the diameter of the semicircular portion (1302) is equal to the width of the supporting portion (1104).

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