Automatic welding and post-welding correction equipment for box beam

Abstract

The utility model relates to the technical field of steel member welding, and provides a box beam automatic welding and post-welding correction device which comprises a machine body, the machine body is provided with a welding channel, the welding channel is used for containing a steel beam, and the bottom of the welding channel is provided with a first through groove; the welding head is arranged in the welding channel and faces one side of the bottom wall of the middle part of the side beam; the conveying roller piece is rotationally arranged on the machine body and extends into the welding channel, and the conveying roller piece is used for abutting against the end beam part at the bottom of the steel beam in a rolling mode; and the jacking roller piece is arranged in the welding channel in a lifting and sliding manner, and the jacking roller piece is configured to abut against the end beam part at the top of the steel beam in a rolling manner or to cancel abutting after lifting and sliding. By means of the technical scheme, the problems that in the welding and post-welding correction process of the H-shaped steel beam in the prior art, factors such as large size and weight, complex shape, thermal deformation, insufficient positioning and supporting, limited operation space and the like are difficult to overcome, and accurate and stable positioning is achieved are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel component welding, in particular to automatic welding and post-weld correction equipment for box beams. Background Art

[0002] Achieving convenient welding positioning and post-weld correction during steel beam welding is challenging. Steel beams are typically large and heavy, making precise positioning difficult during welding. Traditional positioning methods are often inadequate for these product specifications and prone to deviation. Furthermore, box-section beams contain internal cavities and require welding at multiple planes and angles, further complicating positioning. The welding requirements and angle adjustments for each part must be carefully considered. During welding, high temperatures and thermal stresses can easily cause deformation in the beam, leading to shifts in weld position and negatively impacting weld quality and positioning accuracy. Furthermore, the vehicle manufacturing industry often encounters beams with various shapes, including W-shaped lengths and H-shaped or rectangular cross-sections. These shapes present significant challenges in securing and clamping, and are also difficult to provide effective positioning support during the subsequent correction phase. Box-section beam welding typically requires a large workspace, but in practice, site and equipment constraints can make positioning even more challenging. Utility Model Content

[0003] The utility model proposes an automatic box beam welding and post-weld correction device, which solves the problem of achieving accurate and stable positioning during the box beam welding and post-weld correction process in the related technology, which is difficult to overcome factors such as large size and weight, complex shape, thermal deformation, insufficient positioning support and limited operating space.

[0004] The technical solution of the utility model is as follows:

[0005] A box beam automatic welding and post-weld correction device is used for welding and post-weld correction of a steel beam, wherein the steel beam comprises an end beam portion, a side beam middle portion, and a side beam edge portion, wherein the side beam edge portions are located on both sides of the end beam portion, and the end beam portion and the side beam edge portions are arranged in pairs, comprising:

[0006] A machine body, wherein the machine body has a welding channel, the welding channel is used to accommodate the steel beam, and the bottom of the welding channel has a first through groove;

[0007] a welding head, the welding head being arranged in the welding channel and facing one side of the bottom wall of the middle portion of the side beam;

[0008] a conveying roller member, the conveying roller member being rotatably arranged on the machine body and extending into the welding channel, the conveying roller member being used for rolling contact with the end beam portion at the bottom of the steel beam;

[0009] A pressure roller, the pressure roller being arranged in the welding channel so as to be lifted and slidable, and configured to roll and abut against or cancel the abutment with the end beam portion at the top of the steel beam after being lifted and slid;

[0010] a second rotating frame, the second rotating frame being rotatably mounted on the machine body, the second rotating frame being rotated synchronously with the conveying roller, and the second rotating frame having a second guide groove along a rotation radial direction;

[0011] a third slider, the third slider being slidably disposed in the second guide groove;

[0012] A supporting roller, the supporting roller being rotatably arranged on the third slider, the supporting roller being used for rolling contact with the end beam portion at the bottom of the steel beam;

[0013] A third elastic member, one end of which is arranged on the inner wall of the second guide groove, and the other end of which is arranged on the third slider, provides a force for the third slider to slide away from the rotation center of the second rotating frame.

[0014] As a further technical solution, it also includes:

[0015] a first lifting slider, the first lifting slider being arranged on the machine body for lifting and sliding;

[0016] a first side pressure slide, the first side pressure slide being horizontally slidable and rotatable on the first lifting slide, the welding head being arranged on the first side pressure slide;

[0017] The first side pressure roller is rotatably arranged on the first side pressure slide, and the first side pressure roller is configured to be driven by the first side pressure slide to slide horizontally and be used to roll and abut or cancel the abutment with the edge of the side beam on one side of the steel beam.

[0018] As a further technical solution, it also includes:

[0019] A first elastic member, one end of which is arranged on the first lifting slider, and the other end of which is arranged on the first side pressure slide, provides a force for the first side pressure slide to slide away from the first lifting slider.

[0020] The working principle and beneficial effects of the utility model are as follows:

[0021] In the present invention, when performing welding operations, the steel beam is first pre-welded with two side beam plates and one or more center beam plates, and then the H-shaped steel beam is placed into the welding channel by a transport trolley. The conveying roller rotates and rolls against the side beam portion at the bottom of the steel beam, pushing the steel beam forward. The top pressure roller descends and rolls against the side beam portion at the top of the steel beam, stably fixing the steel beam in a suitable position. The welding head performs welding operations on the bottom wall of the center beam portion. When the welding is completed and needs to be corrected, the top pressure roller rises to cancel the abutment, and the conveying roller continues to push the steel beam to move for subsequent processing. The cooperation between the conveying roller and the top pressure roller can effectively fix the position of the steel beam and ensure the positioning accuracy during welding and correction. It also enables the conveying roller to ensure that the steel beam moves smoothly in the welding channel, reducing shaking and deviation. The stable fixing method helps to reduce the deformation of the steel beam caused by high temperature and thermal stress, and ensure the quality of welding. The automated conveying and fixing method improves the efficiency of welding and correction. The lifting height of the top pressure roller and the rotation speed of the conveying roller can be adjusted to adapt to H-shaped steel beams of different sizes. At the same time, it can also have a good matching and supporting effect on steel beams of other shapes.

[0022] When the conveyor rollers are unable to provide effective bottom support for irregularly shaped steel beams, such as those with an M-shaped longitudinal direction, the second turret rotates synchronously with the conveyor rollers. Multiple conveyor rollers are conveyed synchronously via a chain sprocket. Gears or pulleys are provided on the conveyor rollers and the second turret to provide a transmission connection with an adjustable transmission ratio. The force provided by the third elastic member causes the third slider to slide away from the rotation center of the second turret, driving the support rollers to move to the appropriate position. This position then rolls against the edge of the steel beam, providing effective bottom support. This also assists the conveyor rollers in providing conveying power at corners, ensuring smoother operation. This provides additional, effective bottom support for irregularly shaped steel beams where the conveyor rollers provide insufficient support, ensuring beam stability. The third elastic member enables the support rollers to adapt to changes in the shape and position of the steel beam, ensuring tight contact. Synchronous rotation with the conveyor rollers ensures the coordination of the entire support system and avoids support instability caused by asynchrony. This stable bottom support improves the accuracy and quality of welding and calibration, reducing errors caused by unstable support. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The preferred embodiments 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.

[0024] Figure 1 This is a schematic diagram of the structure of the utility model

[0025] Figure 2 This is a schematic diagram of the structure of the utility model;

[0026] Figure 3 for Figure 2 A schematic diagram of the partially enlarged structure of the middle part A;

[0027] Figure 4 This is a schematic diagram of the internal local structure of the utility model;

[0028] Figure 5 for Figure 4 A schematic diagram of the partially enlarged structure of part B in the middle;

[0029] Figure 6 This is a schematic structural diagram of the utility model.

[0030] In the figure: end beam part-101, side beam middle part-102, side beam edge part-103, machine body-2, welding channel-201, welding head-3, conveying roller part-4, top pressure roller part-5, first lifting slider-6, first side pressure slide-7, first side pressure roller-8, first elastic part-12, second rotating frame-14, second guide groove-1401, third slider-15, supporting roller-16, third elastic part-17. DETAILED DESCRIPTION

[0031] 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 drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0032] To simplify the drawings, only the parts relevant to the utility model are schematically shown in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0033] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0034] 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.

[0035] Reference Figures 1 to 6 The embodiment of the present invention provides an automatic box beam welding and post-weld correction device for welding and post-weld correction of a steel beam, wherein the steel beam comprises an end beam portion 101, a side beam middle portion 102, and a side beam edge portion 103. The side beam edge portions 103 are located on both sides of the end beam portion 101, and the end beam portion 101 and the side beam edge portions 103 are arranged in pairs, including:

[0036] The machine body 2 has a welding channel 201, the welding channel 201 is used to accommodate the steel beam, and the bottom of the welding channel 201 has a first through groove;

[0037] The welding head 3 is disposed in the welding channel 201 and faces one side of the bottom wall of the middle portion 102 of the side beam;

[0038] The conveying roller 4 is rotatably mounted on the machine body 2 and extends into the welding channel 201. The conveying roller 4 is used to roll and abut against the end beam portion 101 at the bottom of the steel beam.

[0039] The pressure roller 5 is arranged in the welding channel 201 for lifting and sliding. The pressure roller 5 is configured to roll and abut against or cancel the abutment with the end beam portion 101 at the top of the steel beam after lifting and sliding.

[0040] A second rotating frame 14 is rotatably mounted on the machine body 2. The second rotating frame 14 rotates synchronously with the conveying roller 4. The second rotating frame 14 has a second guide groove 1401 along a radial direction of rotation.

[0041] A third slider 15 is slidably disposed in the second guide groove 1401;

[0042] The supporting roller 16 is rotatably mounted on the third slider 15 and is used for rolling contact with the end beam portion 101 at the bottom of the steel beam;

[0043] The third elastic member 17 has one end disposed on the inner wall of the second guide groove 1401 and the other end disposed on the third slider 15 , providing a force for the third slider 15 to slide away from the rotation center of the second rotating frame 14 .

[0044] In this embodiment, during welding, the steel beam is first pre-welded to two side beam plates and one or more center beam plates. The H-shaped steel beam is then placed into the welding channel 201 using a transport trolley. The conveyor roller 4 rotates, rolling against the side beam portion 101 at the bottom of the beam, pushing the beam forward. The pressure roller 5 descends and rolls against the side beam portion 101 at the top of the beam, securing the beam in place. The welding head 3 welds the bottom wall of the center beam portion 102. When welding is complete and correction is required, the pressure roller 5 rises to release the contact, while the conveyor roller 4 continues to push the beam for further processing. The coordination of the conveyor roller 4 and pressure roller 5 effectively secures the beam in place, ensuring accurate positioning during welding and correction. The conveyor roller 4 also ensures smooth movement of the beam within the welding channel 201, minimizing vibration and deviation. This stable securing method helps mitigate deformation of the beam caused by high temperatures and thermal stress, ensuring weld quality. The automated conveying and securing method improves welding and correction efficiency. By adjusting the lifting height of the top pressure roller 5 and the rotation speed of the conveying roller 4, it can adapt to H-shaped steel beams of different sizes, and at the same time it can also have a good matching and supporting effect on steel beams of other shapes.

[0045] When the conveyor rollers 4 are unable to provide effective bottom support at certain locations, such as those with M-shaped longitudinal profiles, the second turret 14 rotates synchronously with the conveyor rollers 4. Multiple conveyor rollers 4 are conveyed synchronously via chains and sprockets. Gears or pulleys are provided on the conveyor rollers 4 and the second turret 14 to provide a transmission connection with an adjustable transmission ratio. The force provided by the third elastic member 17 causes the third slider 15 to slide away from the rotation center of the second turret 14, driving the support rollers 16 to move to the appropriate position, where they roll against the edge beam 101 at the bottom of the steel beam, providing effective bottom support. This also assists the conveyor rollers 4 in providing conveying power at corners, ensuring smoother operation of the device. This provides additional and effective bottom support for areas where the conveyor rollers 4 provide insufficient support, ensuring beam stability. The provision of the third elastic member 17 enables the support rollers 16 to adapt to changes in the shape and position of the steel beam, ensuring tight contact. Synchronous rotation with the conveyor rollers 4 ensures the coordination of the entire support system and avoids support instability caused by asynchrony. Stable bottom support helps improve the accuracy and quality of welding and correction, and reduces errors caused by unstable support.

[0046] As a further technical solution, it also includes:

[0047] A first lifting slider, the first lifting slider is arranged on the machine body for lifting and sliding;

[0048] a first side pressure slide, the first side pressure slide is horizontally slidable and rotatably arranged on the first lifting slide, and the welding head is arranged on the first side pressure slide;

[0049] The first side pressure roller is rotatably arranged on the first side pressure slide. The first side pressure roller is configured to be driven by the first side pressure slide to slide horizontally and to be used for rolling contact with or cancellation of contact with the side beam edge on one side of the steel beam.

[0050] This embodiment also includes a first lifting slide 6, a first side pressure slide 7, and a first side pressure roller 8. The first lifting slide 6 can be raised and lowered on the machine body 2. The first side pressure slide 7 is horizontally slidable and rotatably mounted on the first lifting slide 6. The welding head 3 is mounted on the first side pressure slide 7, and the first side pressure roller 8 is rotatably mounted on the first side pressure slide 7. During the welding and calibration process, the first lifting slide 6 is raised and lowered according to the height of the steel beam. The first side pressure slide 7 drives the first side pressure roller 8 to slide horizontally, causing it to roll against the edge 103 on one side of the steel beam, enhancing the stability and positioning accuracy of the steel beam. When abutment is not required, the first side pressure slide 7 drives the first side pressure roller 8 to slide horizontally to eliminate the abutment. The abutment of the first side pressure roller 8 against the edge 103 of the steel beam further improves the positioning accuracy of the steel beam during welding and calibration. The arrangement of the first lifting slide 6 can accommodate steel beams of varying heights, increasing the versatility of the equipment. The horizontal sliding and rotational movement of the first side pressure slide 7 allows for more flexible position adjustment of the first side pressure roller 8 to meet the needs of different working conditions. Increased support and fixation of the steel beam side makes the steel beam more stable during welding and correction, reducing shaking and deviation. Accurate positioning helps improve welding quality and reduce welding defects.

[0051] As a further technical solution, it also includes:

[0052] The first elastic member has one end arranged on the first lifting slider and the other end arranged on the first side pressure slide, providing a force for the first side pressure slide to slide away from the first lifting slider.

[0053] In this embodiment, when supporting the workpiece, if the drive is inaccurate, causing the first side pressure slide 7 to slide beyond expectations, the elastic member will absorb the excess force through its own expansion and contraction to avoid hard collisions and damage between components. When there is a certain fluctuation in the size of the workpiece, the elastic member can adapt to this change by expansion and contraction, always maintaining effective support and positioning of the workpiece, while preventing damage to the device or workpiece due to unstable workpiece size. It effectively avoids damage to internal components of the device due to inaccurate drive, and improves the reliability and stability of the equipment. It can cope with the instability of the workpiece size, ensure that the equipment can work normally under different working conditions, and reduce the adverse effects caused by changes in the workpiece size. It reduces the wear and damage of components caused by accidental impact and excessive extrusion, and reduces the maintenance and replacement costs of the equipment.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. 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, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A box beam automatic welding and post-weld correction device for welding and post-weld correction of a steel beam, wherein the steel beam comprises an end beam portion (101), a side beam middle portion (102) and a side beam edge portion (103), wherein the side beam edge portion (103) is located on both sides of the end beam portion (101), and the end beam portion (101) and the side beam edge portion (103) are arranged in pairs, characterized in that: include: A machine body (2), the machine body (2) having a welding channel (201), the welding channel (201) being used to accommodate the steel beam, and the bottom of the welding channel (201) having a first through groove; A welding head (3), the welding head (3) being arranged in the welding channel (201), the welding head (3) facing one side of the bottom wall of the middle portion (102) of the side beam; A conveying roller member (4), the conveying roller member (4) is rotatably arranged on the machine body (2) and extends into the welding channel (201), and the conveying roller member (4) is used for rolling contact with the end beam portion (101) at the bottom of the steel beam; A top pressure roller (5), the top pressure roller (5) being arranged in the welding channel (201) for lifting and sliding, and the top pressure roller (5) being configured to roll and abut against or cancel abutment with the end beam portion (101) at the top of the steel beam after lifting and sliding; a second rotating frame (14), the second rotating frame (14) being rotatably disposed on the machine body (2), the second rotating frame (14) rotating synchronously with the conveying roller member (4), and the second rotating frame (14) having a second guide groove (1401) along a rotation radial direction; a third slider (15), the third slider (15) being slidably disposed in the second guide groove (1401); A supporting roller (16), the supporting roller (16) being rotatably arranged on the third slider (15), the supporting roller (16) being used for rolling contact with the end beam portion (101) at the bottom of the steel beam; A third elastic member (17), one end of the third elastic member (17) is arranged on the inner wall of the second guide groove (1401), and the other end is arranged on the third slider (15), providing a force for the third slider (15) to slide in a direction away from the rotation center of the second rotating frame (14).

2. The automatic welding and post-weld correction equipment for box beams according to claim 1, characterized in that: Also includes: A first lifting slider (6), the first lifting slider (6) being arranged on the machine body (2) in a lifting and sliding manner; a first side-pressing slide (7), the first side-pressing slide (7) being horizontally slidable and rotatably arranged on the first lifting slide (6), and the welding head (3) being arranged on the first side-pressing slide (7); A first side pressure roller (8), the first side pressure roller (8) is rotatably arranged on the first side pressure slide (7), and the first side pressure roller (8) is configured to be driven by the first side pressure slide (7) to slide horizontally and to be used for rolling contact with or cancellation of contact with the side beam edge (103) on one side of the steel beam.

3. The automatic welding and post-weld correction equipment for box beams according to claim 2, characterized in that: Also includes: A first elastic member (12), one end of the first elastic member (12) is arranged on the first lifting slider (6), and the other end is arranged on the first side pressure slide (7), providing a force for the first side pressure slide (7) to slide away from the first lifting slider (6).

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