A strip steel welding positioning device

Abstract

This invention relates to the field of strip steel processing equipment technology, specifically a strip steel welding positioning device. The device includes a welding frame, a movable module mounted on the welding frame, a sliding mechanism mounted on the movable module, a welding head mounted on the sliding mechanism, and a support plate mounted on the welding frame. The support plate has a pre-reserved groove in its center for the welding slag to fall into, and a limit mechanism is provided on the support plate. When the welding head moves laterally for welding, gears at both ends of the connecting shaft mesh with racks fixed to the support plate and upper support, driving a cleaning brush to rotate continuously. The cleaning brush closely adheres to the upper and lower surfaces of the strip steel to be welded area and the edge of the joint, removing surface impurities through rolling cleaning. This keeps the area to be welded clean, preventing impurities from entering the molten pool and causing defects such as slag inclusions and porosity in the weld, significantly improving weld formation quality and welding reliability.

Description

Technical Field

[0001] This invention belongs to the technical field of strip steel processing equipment, and specifically relates to a strip steel welding positioning device. Background Technology

[0002] Strip steel is the core raw material for cold rolling, welded pipe, galvanizing, metal forming and continuous production lines. In the continuous processing of strip steel, the ends of two strip steel sections need to be butt welded to achieve continuous conveying and coil changing without stopping the production line. It is widely used in industries such as welded pipe manufacturing, steel strip rolling, hardware processing, home appliance sheet metal, and automotive steel strip.

[0003] Existing strip steel welding positioning devices mostly rely on manual alignment or simple clamping, which can easily lead to joint misalignment and weld head path deviation during the welding process. Furthermore, they lack automatic cleaning of the area to be welded, and surface dust and other impurities can cause defects such as slag inclusions and porosity in the weld. At the same time, the high temperature of welding can cause uneven cooling of the strip steel weld, resulting in warping and deformation. The bottom slag is difficult to remove automatically, leading to poor weld formation and insufficient strength, which affects the stability of subsequent strip steel conveying and processing. Therefore, it is necessary to design a strip steel welding positioning device. Summary of the Invention

[0004] The purpose of this invention is to provide a strip steel welding positioning device with a simple structure and reasonable design in order to solve the above problems.

[0005] The present invention achieves the above objectives through the following technical solutions: A strip welding positioning device includes a welding frame, a movable module on the welding frame, a sliding mechanism on the movable module, a welding head on the sliding mechanism, a support plate on the welding frame, a reserved groove in the middle of the support plate for welding slag to fall, a limiting mechanism on the support plate, a follow-up roller brush mechanism on the limiting mechanism, the limiting mechanism including a lower slider slidably connected to a guide rail at the bottom of the support plate, a lower bracket fixed between the lower sliders, a speed-matching mechanism on the lower bracket, an upper bracket above the support plate on the speed-matching mechanism, a limiting bucket fixed on the upper bracket for limiting the welding head, upper sliders symmetrically fixed on both sides of the upper bracket, the upper sliders slidably connected to the bottom of the upper support, and the upper support fixed to the welding frame, a pressing mechanism on the upper support, and anti-warping mechanisms on both the lower and upper brackets.

[0006] As a further optimization of the present invention, the follow-up roller brush mechanism includes two connecting shafts that are rotatably connected between the upper slider and the lower slider, respectively. Gears are fixedly sleeved at both ends of the connecting shafts, the gears mesh with the racks, and the racks are fixedly fixed on the support plate and the upper support, respectively. A cleaning roller brush located between the reserved grooves is fixedly sleeved on the connecting shafts.

[0007] As a further optimization of the present invention, the anti-warping mechanism includes a limiting plate fixed to one side of the lower support and the upper support respectively, heat dissipation fins are evenly arranged on the limiting plate, and a frosted surface is opened on the limiting plate. A scraper is fixedly installed on one side of the lower support.

[0008] As a further optimization of the present invention, the same speed mechanism includes a side support plate fixed on the support plate, a first roller rotatably connected to the four corners of one side of the side support plate, a first connecting belt tensioned on the first roller, and a limiting bucket fixedly connected to the first connecting belt.

[0009] As a further optimization of the present invention, a second roller is symmetrically rotatably connected to one side bottom of the side support plate, and a second connecting belt is tensioned on the second roller and the first roller, and the lower bracket is fixedly connected to the second connecting belt.

[0010] As a further optimization of the present invention, the clamping mechanism includes a cylinder frame fixed to the top of the upper support, a pressing cylinder fixed on the cylinder frame, and a long strip-shaped pressure plate fixed to the output end of the pressing cylinder.

[0011] As a further optimization of the present invention, the moving module includes a lifting unit, which is connected to the movable end of the horizontal moving unit, and the horizontal moving unit is connected to the movable end of the vertical moving unit. The vertical moving unit is disposed on the top of the welding frame.

[0012] As a further optimization of the present invention, the sliding mechanism includes a mounting frame fixed to the movable end of the lifting unit, and the mounting frame has an elongated slot for the welding head to slide.

[0013] As a further optimization of the present invention, two limiting plates are fixed on the welding head, the two limiting plates are respectively attached to the top and bottom of the mounting frame, and a limiting sleeve is fixedly sleeved on the welding head.

[0014] The beneficial effects of this invention are as follows: 1. This invention achieves sliding cooperation between the welding head and the mounting frame through a sliding mechanism. Under the upper and lower limiting action of the limiting plate, the welding head can adaptively float within a small range to adapt to the joint position. Before welding, the welding head is adjusted to the top of the limiting bucket by the moving module, and automatically centered and positioned by the inverted conical groove guide, so that the welding head is accurately aligned with the center of the strip joint. During the welding movement, the upper slider of the limiting mechanism slides along the bottom guide rail of the upper support, and the lower slider slides along the bottom guide rail of the support plate. The double guide rail constraint synchronously restricts the movement trajectory of the upper support, the limiting bucket and the welding head, ensuring that the welding head always moves smoothly in a direction parallel to the reserved groove, effectively avoiding welding path deviation, improving the straightness and centering of the weld, and ensuring the uniformity of the weld connection strength.

[0015] 2. In this invention, when the welding head moves laterally for welding, the upper and lower sliders drive the connecting shaft to move with the overall mechanism. The gears at both ends of the connecting shaft mesh with the racks fixed on the support plate and the upper support, causing the connecting shaft to rotate around its own axis during the movement. This, in turn, drives the cleaning wheel brush to rotate continuously. The cleaning wheel brush is in close contact with the upper and lower surfaces of the strip steel to be welded area and the edge of the joint. By rolling and sweeping, it removes impurities attached to the surface, keeping the area to be welded clean and preventing impurities from mixing into the molten pool, which would cause defects such as slag inclusions and porosity in the weld. This significantly improves the weld formation quality and welding reliability.

[0016] 3. During the welding process of this invention, the limiting plate of the anti-warping mechanism moves at the same speed as the upper and lower supports and the welding head, closely adhering to the high-temperature weld area just completed from both the upper and lower sides of the strip. Utilizing the rigid constraint and immediate contact of the limiting plate, it effectively suppresses thermal stress deformation of the weld caused by high-temperature cooling, preventing warping and bulging of the strip and ensuring the flatness and straightness of the strip after welding. Simultaneously, the heat dissipation fins on the limiting plate increase the heat dissipation area, achieving passive rapid cooling, further reducing residual welding stress and lowering the risk of deformation. The scraper fixed on one side of the lower support moves synchronously with the anti-warping mechanism, limiting strip warping while... Sliding close to the bottom surface of the strip, it can quickly scrape away residual slag that drips and adheres to the bottom of the strip during welding, eliminating the need for an additional slag cleaning process. This avoids slag accumulation affecting subsequent processing or the surface quality of the strip, simplifying the workflow and improving processing efficiency. The surface of the limiting plate that contacts the strip has a frosted surface. As it moves close to the strip during welding, the frosted surface creates a slight polishing effect on the welding area and surrounding surface of the strip. This removes slight oxide scale from the strip surface and refines the surface roughness, making the strip surface smoother and cleaner. It also enhances the smoothness of the transition between the weld and the strip body, improving overall processing accuracy and appearance quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the mobile module in this invention; Figure 3 yes Figure 2 A magnified view of a portion of region A in the middle; Figure 4 This is a schematic diagram of the clamping mechanism in this invention; Figure 5 This is a schematic diagram of the follower roller brush mechanism in this invention; Figure 6 This is an assembly diagram of the limiting mechanism in this invention.

[0018] In the diagram: 1. Welding frame; 2. Moving module; 3. Sliding mechanism; 4. Welding head; 5. Support plate; 6. Reserved slot; 7. Limiting mechanism; 8. Anti-warping mechanism; 9. Follow-up roller brush mechanism; 10. Pressing mechanism; 101. Cylinder frame; 102. Downward pressing cylinder; 103. Pressure plate; 21. Lifting unit; 22. Lateral movement unit; 23. Longitudinal movement unit; 31. Mounting frame; 32. Limiting plate; 71. Downward sliding block; 72. Downward... 73. Bracket; 74. Upper slider; 75. Limiting bucket; 76. Upper support; 77. Same speed mechanism; 78. Upper bracket; 89. Limiting sleeve; 80. Limiting plate; 81. Heat dissipation fins; 82. Frosted surface; 83. Scraper; 94. Connecting shaft; 95. Gear; 96. Rack; 97. Cleaning wheel brush; 78. Side support plate; 79. First roller; 79. First connecting belt; 79. Second roller; 79. Second connecting belt. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0020] Example: Please refer to Figures 1-6 A strip steel welding positioning device includes a welding frame 1, a movable module 2 mounted on the welding frame 1, a sliding mechanism 3 mounted on the movable module 2, and a welding head 4 mounted on the sliding mechanism 3. The movable module 2 is used to adjust the spatial position of the sliding mechanism 3 and the welding head 4. The sliding mechanism 3 allows the welding head 4 to slide to adapt to the joint position. The welding frame 1 is equipped with a support plate 5 for supporting the strip steel from below. A reserved groove 6 for welding slag to fall into is opened in the middle of the support plate 5. During welding, the steel strips on both sides... The welding head 4 is laid flat on the support plate 5, with the welding end positioned above the reserved groove 6. This allows the molten slag generated during welding to fall from the reserved groove 6, while also preventing damage to the support plate 5 from high welding positions. A limiting mechanism 7 is provided on the support plate 5. During welding, the limiting mechanism 7 is used to limit the welding head 4, ensuring that the welding path of the welding head 4 is always parallel to the reserved groove 6. A follow-up roller brush mechanism 9 is provided on the limiting mechanism 7. During the welding process, the follow-up roller brush mechanism 9 can be used to brush the part to be welded, eliminating the influence of impurities on the welding.

[0021] Please see Figures 4-6The limiting mechanism 7 includes a lower slider 71 slidably connected to the bottom guide rail of the support plate 5, a lower bracket 72 fixed between the lower sliders 71, a speed-matching mechanism 76 on the lower bracket 72, and an upper bracket 77 located above the support plate 5 on the speed-matching mechanism 76. The speed-matching mechanism 76 ensures that the upper bracket 77 and the lower bracket 72 move at the same speed. A limiting bucket 74 for limiting the welding head 4 is fixed on the upper bracket 77. The slot in the limiting bucket 74 is inverted conical. Upper sliders 73 are symmetrically fixed on both sides of the upper bracket 77. The upper sliders 73 are slidably connected to the guide rail at the bottom of the upper support 75. 5 is fixed on the welding frame 1. The upper support 75 is equipped with a clamping mechanism 10. The lower support 72 and the upper support 77 are both equipped with anti-warping mechanisms 8. The anti-warping mechanism 8 can tightly fit the area that has just been welded during the moving welding process to prevent warping. The clamping mechanism 10 includes a cylinder frame 101 fixed on the top of the upper support 75. A downward pressure cylinder 102 is fixed on the cylinder frame 101. A long strip pressure plate 103 is fixed to the output end of the downward pressure cylinder 102. When welding, the output end of the downward pressure cylinder 102 extends out, and the long strip pressure plate 103 can be used to clamp one end of the steel strip to prevent the steel strip from shifting during welding.

[0022] Please see Figures 1-3 The moving module 2 includes a lifting unit 21, which is connected to the movable end of a horizontal moving unit 22. The horizontal moving unit 22 is connected to the movable end of a vertical moving unit 23, which is located on the top of the welding frame 1. The sliding mechanism 3 includes a mounting frame 31 fixed to the movable end of the lifting unit 21. The lifting unit 21, the vertical moving unit 23, and the horizontal moving unit 22 are all driven by a motor screw. The lifting unit 21, the vertical moving unit 23, and the horizontal moving unit 22 are existing technologies and will not be described in detail here. The welding head 4 is slidably connected to a long slot on the mounting frame 31. Two limiting plates 32 are fixed on the welding head 4, and the two limiting plates 32 are respectively attached to the top and bottom of the mounting frame 31. Corresponding limiting buckets are fixedly fitted on the welding head 4. Before welding, the horizontal position of the welding head 4 is adjusted by the longitudinal movement unit 23 and the transverse movement unit 22 until it moves above the limiting sleeve 74. Then, the lifting unit 21 drives the welding head 4 and the limiting sleeve 78 to move down. During the downward movement, the welding head 4 is fitted into the inverted conical groove of the limiting sleeve 74. After the fitting is complete, the welding head 4 is in the center of the reserved groove 6. During the welding movement, the transverse movement unit 22 drives the welding head 4, the limiting sleeve 74 and the lower support 72 to move in a direction parallel to the reserved groove 6. During the process, the welding head 4 is used to weld the steel strips on both sides into a whole. During the welding movement, the direction of movement of the welding head 4 is restricted by the lower slider 71 and the upper slider 73 to prevent the welding path from deviating and to ensure the welding effect.

[0023] When the device is working, the two strips of steel to be welded are laid flat on the support plate 5, so that the welding ends of the two strips are aligned and located above the reserved groove 6 in the middle of the support plate 5. The reserved groove 6 provides space for the welding slag to fall, avoiding slag accumulation and preventing high temperature damage to the support plate 5. The clamping mechanism 10 is activated, and the output end of the pressing cylinder 102 is extended, driving the long strip-shaped pressure plate 103 to press down on the ends of the strip, thereby fixing the strip and preventing the strip from shifting during welding. The initial spatial position of the welding head 4 is adjusted by the moving module 2, moving the welding head 4 above the limiting bucket 74. Then, the lifting unit 21 drives the mounting frame 31 and the welding head 4 to move downward, so that the lower end of the welding head 4 and the limiting sleeve 78 are fitted into the inverted conical groove of the limiting bucket 74. Under the guidance of the inverted conical shape, the welding head 4 is automatically centered and aligned with the reserved groove 6, completing the precise positioning before welding. After welding begins, the transverse moving unit 22 moves along a path parallel to the reserved groove 6. The direction of the drive for the welding head 4 to move at a constant speed; the welding head 4 drives the limiting bucket 74, the upper slider 73 and the upper support 77 to move, and with the same speed mechanism 76, the lower support 72 can move synchronously with the upper support 77. Under the constraint of the guide rail, the welding path is always kept straight and parallel to the reserved groove 6 to avoid welding deviation. During the moving welding process, the follow-up roller brush mechanism 9 moves synchronously with the limiting mechanism 7 to pre-clean the surface of the strip steel to be welded, remove dust and impurities, and improve the welding quality. At the same time, the anti-warping mechanism 8 moves along and closely adheres to the area that has just been welded, and suppresses the high temperature cooling deformation of the weld by the close contact constraint to prevent the strip steel from warping. The welding head 4 forms a sliding fit with the mounting frame 31 through the sliding mechanism 3. Under the upper and lower limit action of the limiting plate 32, it can make small-range adaptive floating with the limiting bucket 74 to ensure stable welding posture and uniform weld. The slag generated by welding falls naturally through the reserved groove 6.

[0024] Please see Figures 4-6 The same-speed mechanism 76 includes a side support plate 761 fixed to the support plate 5. First rollers 762 are rotatably connected to the four corners of one side of the side support plate 761. A first connecting belt 763 is tensioned on the first rollers 762. The upper part of the first connecting belt 763 is above the support plate 5, and a limiting bucket 74 is fixedly connected to the first connecting belt 763. Second rollers 764 are symmetrically rotatably connected to the bottom of one side of the side support plate 761. The second rollers 764 are located below the support plate 5. A second connecting belt 763 is tensioned on the second roller 764 and the first roller 762. The lower support 72 is fixedly connected to the second connecting belt 765. During the welding process, the welding head 4 drives the limiting bucket 74, the upper slider 73 and the upper support 77 to move. The limiting bucket 74 on the upper support 77 pulls the first connecting belt 763 to run on the first roller 762, and at the same time drives the first roller 762 to rotate. The rotating first roller 762 causes the second roller 764 and the second connecting belt 765 tensioned on the first roller 762 to run, thereby causing the lower support 72 connected to the second connecting belt 765 to move at the same speed as the upper support 77.

[0025] The follow-up roller brush mechanism 9 includes two connecting shafts 91 rotatably connected between the upper slider 73 and the lower slider 71. Gears 92 are fixedly sleeved at both ends of the connecting shafts 91, and the gears 92 mesh with racks 93. The racks 93 are fixed to the support plate 5 and the upper support 75, respectively. A cleaning roller brush 94 is fixedly sleeved on the connecting shafts 91, positioned between the pre-reserved grooves 6. When the welding head 4 moves laterally along the pre-reserved grooves 6 for welding, the limiting mechanism 7 moves synchronously, causing the upper slider 73 and the lower slider 71 to slide along the upper guide rail and the lower guide rail, respectively. The sliding block 71 then drives the two connecting shafts 91 to move together. Since the gear 92 meshes with the rack 93 fixed on the support plate 5 and the upper support 75, the connecting shaft 91 will rotate around its own axis while moving, thereby driving the cleaning wheel brush 94 fixedly sleeved on the connecting shaft 91 to rotate synchronously. The cleaning wheel brush 94 moves forward with the welding position and continues to rotate, rolling and cleaning the upper and lower surfaces of the joint of the two strip steel sections and the edge of the joint, removing surface dust and other impurities, keeping the area to be welded clean, and avoiding impurities from affecting the weld formation and welding strength.

[0026] The anti-warping mechanism 8 includes a limiting plate 81 fixed to one side of the lower support 72 and the upper support 77 respectively. During the same speed movement of the lower support 72 and the upper support 77, the limiting plate 81 can be attached to the welded strip from both the upper and lower surfaces, and closely adhere to the newly welded part as the welding moves, realizing pressing and shaping as welding progresses, suppressing warping and deformation of the weld caused by high temperature cooling. The limiting plate 81 is uniformly provided with heat dissipation fins 82 to increase the heat dissipation area and realize passive rapid heat dissipation and cooling, further reducing welding stress and deformation. The limiting plate 81 is provided with a frosted surface 83. A scraper 84 is fixedly installed on one side of the lower support 72. During the welding movement, the scraper 84 moves with the strip and can scrape off the welding slag from the bottom of the steel strip.

[0027] It should be noted that, when using this strip steel welding positioning device, the two strip steel sections to be welded are laid flat on the support plate 5 of the welding frame 1, and the welding ends of the two strip steel sections are precisely aligned to ensure that the butt joint is directly above the reserved groove 6 in the middle of the support plate 5. The reserved groove 6 provides a channel for the subsequent welding slag to fall, avoiding the accumulation of slag in the weld area, and at the same time preventing the high-temperature slag from burning the support plate 5. After the device is started, the strip steel is first fixed by the clamping mechanism 10. During the process, the downward pressing cylinder 102 on the cylinder frame 101 is energized and the output end extends downward, driving the long strip pressure plate 103 to move down synchronously until the pressure plate 103 is close to the upper surface of the strip steel end, realizing the stable clamping of the strip steel, avoiding the strip steel from shifting during the welding process, and ensuring the accuracy of the weld joint. Subsequently, the initial positioning adjustment of welding head 4 is performed. During this process, the longitudinal movement unit 23 and the transverse movement unit 22 in the moving module 2 work together under the drive of the motor screw to adjust the horizontal position of the lifting unit 21 and the sliding mechanism 3, moving welding head 4 directly above the limiting bucket 74 of the limiting mechanism 7. Then, the lifting unit 21 drives the movable end to move downward, causing the mounting frame 31 and welding head 4 to move downward synchronously, so that the limiting sleeve 78 at the lower end of welding head 4 gradually fits into the inverted conical groove of the limiting bucket 74. Under the guidance of the inverted conical structure, welding head 4 automatically completes centering and finally maintains coaxial alignment with the reserved groove 6, achieving precise positioning before welding and ensuring that the welding path completely coincides with the butt joint. After the welding officially begins, the transverse movement unit 22 drives welding head 4 to move at a constant speed in a direction parallel to the reserved groove 6, and welding head 4 starts the welding operation, welding the butt joint of the two strip steel sections into one piece. During the movement of welding head 4... The outer limiting sleeve 78 is always in contact with the inverted conical groove of the limiting bucket 74, which drives the upper bracket 77 and the upper sliders 73 on both sides to slide synchronously along the guide rail at the bottom of the upper support 75. At the same time, the limiting bucket 74 on the upper bracket 77 pulls the first connecting belt 763 of the side support plate 761 in the same speed mechanism 76, so that the first connecting belt 763 runs on the first rollers 762 at the four corners, thereby driving the first rollers 762 to rotate. The first rollers 762 are linked with the second rollers 764 at the bottom through the second connecting belt 765, which causes the second connecting belt 765 to run synchronously. Finally, the lower bracket 72 and the lower slider 71 fixed with the second connecting belt 765 move along the bottom guide rail of the support plate 5, so as to realize the same speed and synchronous movement of the upper bracket 77 and the lower bracket 72. Under the double constraint of the upper and lower guide rails, the movement path of the welding head 4 always remains straight and strictly parallel to the reserved groove 6, completely avoiding welding offset and ensuring the straightness of the weld. During the welding process, the follow-up roller brush mechanism 9 moves together with the limiting mechanism 7. The upper slider 73 and the lower slider 71 drive the two connecting shafts 91 to move. The gears 92 at both ends of the connecting shafts 91 mesh with the racks 93 fixed on the support plate 5 and the upper support 75, causing the connecting shafts 91 to rotate around their own axis while moving. This, in turn, drives the cleaning roller brush 94 on the shaft to rotate continuously, cleaning the upper and lower surfaces of the strip steel to be welded area and the edge of the joint, effectively removing impurities and improving the weld formation quality and welding strength. The anti-warping mechanism 8 moves synchronously with the upper support 77 and the lower support 72. The frosted surface 83 of the limiting plate 81 is pressed against the high-temperature area of ​​the strip steel from the upper and lower sides. Through immediate contact and constraint, it suppresses the thermal stress deformation of the weld caused by high-temperature cooling, preventing the strip steel from warping. The heat dissipation fins 82 on the limiting plate 81 increase the heat dissipation area, achieving passive heat dissipation. Rapid cooling further reduces welding stress and deformation. Simultaneously, the scraper 84 on one side of the lower support 72 moves to scrape away residual welding slag from the bottom of the strip, keeping the strip surface clean. During welding, the welding head 4 slides into the mounting frame 31 via the sliding mechanism 3. The top and bottom limiting plates 32 restrict the vertical displacement of the welding head 4, allowing it to self-adaptively float within a small range with the limiting bucket 74, ensuring stable welding posture and uniform weld width. The welding slag falls naturally through the reserved groove 6, avoiding interference with the welding process. After welding, the transverse unit 22 resets the welding head 4 and the limiting mechanism 7, the lifting unit 21 drives the welding head 4 to move upward and disengage from the limiting bucket 74, the output end of the downward pressing cylinder 102 retracts, and the pressure plate 103 releases the strip, allowing the welded strip to be removed, completing the entire welding operation.

[0028] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A strip steel welding positioning device comprising a welding frame (1), characterized in that: The welding frame (1) is provided with a moving module (2), the moving module (2) is provided with a sliding mechanism (3), the sliding mechanism (3) is provided with a welding head (4), the welding frame (1) is provided with a support plate (5), the support plate (5) has a reserved groove (6) in the middle for the welding slag to fall, the support plate (5) is provided with a limiting mechanism (7), the limiting mechanism (7) is provided with a follow-up roller brush mechanism (9), the limiting mechanism (7) includes a lower slider (71) slidably connected to the bottom guide rail of the support plate (5), and a lower bracket (72) is fixed between the lower sliders (71). The lower support (72) is provided with a speed-matching mechanism (76), and the speed-matching mechanism (76) is provided with an upper support (77) located above the support plate (5). The upper support (77) is fixed with a limiting bucket (74) for limiting the welding head (4). The upper support (77) is symmetrically fixed with upper sliders (73) on both sides. The upper sliders (73) are slidably connected to the bottom of the upper support (75), and the upper support (75) is fixed on the welding frame (1). The upper support (75) is provided with a pressing mechanism (10). The lower support (72) and the upper support (77) are both provided with anti-warping mechanisms (8).

2. The strip welding positioning device according to claim 1, characterized in that: The follow-up roller brush mechanism (9) includes two connecting shafts (91) that are rotatably connected between the upper slider (73) and the lower slider (71). Gears (92) are fixedly sleeved at both ends of the connecting shafts (91). The gears (92) mesh with the rack (93), and the rack (93) is fixed on the support plate (5) and the upper support (75). A cleaning roller brush (94) is fixedly sleeved on the connecting shafts (91) between the reserved grooves (6).

3. The strip welding positioning device according to claim 1, characterized in that: The anti-warping mechanism (8) includes a limiting plate (81) fixed on one side of the lower bracket (72) and the upper bracket (77), respectively. Heat dissipation fins (82) are evenly arranged on the limiting plate (81). A frosted surface (83) is provided on the side of the limiting plate (81) away from the heat dissipation fins (82). A scraper (84) is fixedly installed on one side of the lower bracket (72).

4. The strip welding positioning device according to claim 1, characterized in that: The same speed mechanism (76) includes a side support plate (761) fixed on the support plate (5), a first roller (762) is rotatably connected to one of the four corners of the side support plate (761), a first connecting belt (763) is tensioned on the first roller (762), and a limiting bucket (74) is fixedly connected to the first connecting belt (763).

5. The strip welding positioning device according to claim 4, characterized in that: The side support plate (761) is symmetrically rotatably connected to a second roller (764) at one bottom. A second connecting belt (765) is tensioned on the second roller (764) and the first roller (762). The lower bracket (72) is fixedly connected to the second connecting belt (765).

6. The strip welding positioning device according to claim 1, characterized in that: The pressing mechanism (10) includes a cylinder frame (101) fixed on the top of the upper support (75), a pressing cylinder (102) fixed on the cylinder frame (101), and a long strip-shaped pressure plate (103) fixed at the output end of the pressing cylinder (102).

7. The strip welding positioning device according to claim 1, characterized in that: The moving module (2) includes a lifting unit (21), which is connected to the movable end of the horizontal moving unit (22), and the horizontal moving unit (22) is connected to the movable end of the vertical moving unit (23). The vertical moving unit (23) is located on the top of the welding frame (1).

8. A strip steel welding positioning device according to claim 7, characterized in that: The sliding mechanism (3) includes a mounting frame (31) fixed to the movable end of the lifting unit (21), and the mounting frame (31) has a long strip-shaped slot for the welding head (4) to slide.

9. A strip steel welding positioning device according to claim 8, characterized in that: Two limiting plates (32) are fixed on the welding head (4). The two limiting plates (32) are respectively attached to the top and bottom of the mounting frame (31). A limiting sleeve (78) is fixedly sleeved on the welding head (4).

Images