Stainless steel roof panel rib locking welder and its use

Abstract

The application discloses a stainless steel roof panel rib locking welding machine and a use method thereof. The welding machine and the clamping device are opposite to the roof panel along the length direction of the panel rib and move automatically; the clamping device is arranged in front of the welding machine; the clamping device comprises a plurality of groups of clamping wheels, the clamping wheels are divided into two rows and are arranged on the two sides of the panel rib to be welded respectively; the clamping wheels are arranged in multiple rows along the moving direction and form a progressive clamping structure; the clamping device and the welding machine are controlled by the same control system and are completely synchronous; the starting and closing instructions are consistent and the moving speeds are completely same; the control system controls the clamping device to just roll and press the panel rib section in real time so that the welding machine behind applies welding. The application gradually rolls and locks the panel rib through the multiple clamping wheels before welding, forcibly eliminates the gap between the multiple stainless steel sheets, and improves the welding efficiency and quality of the stainless steel roof panel rib.

Description

Technical Field

[0001] This invention relates to the field of stainless steel roofing construction technology, and more specifically to a stainless steel roofing panel rib locking welding machine and its application, which is particularly suitable for stainless steel roofing systems with high welding quality requirements and high welding speed requirements. Background Technology

[0002] Stainless steel roofing systems are widely used in modern large public buildings and industrial plants due to their excellent corrosion resistance, long lifespan, and aesthetic appeal. During the installation of stainless steel roofing systems, the quality of the connections between roof panels directly affects the waterproofing performance and service life of the entire roof. Currently, the industry commonly uses "roll welding" (resistance seam welding) to connect the ribs of stainless steel roof panels. Roll welding is a mature resistance welding technology. Its basic principle is to apply continuous pressure to the workpiece and pass an electric current through two rotating roller electrodes. The Joule heat generated by the contact resistance melts the rib material to its melting temperature, thus forming a continuous, sealed weld. This process is particularly suitable for welding thin stainless steel sheets, offering advantages such as fast welding speed, small heat-affected zone, and continuous, dense welds.

[0003] However, in practical engineering applications, roll welding faces a long-standing and significant technical challenge—welding failure caused by insufficient fit between the ribs and the plates. Specifically, stainless steel roof panel ribs are typically composed of 2 to 3 thin stainless steel sheets stacked together. During welding, these sheets must be tightly fitted together to ensure uniform current distribution, concentrated heat, and controllable penetration. Gaps between the sheets directly lead to various welding defects: first, incomplete penetration, resulting in heat loss and insufficient penetration, preventing the weld strength from meeting design requirements; second, blackening of the weld, indicating oxidation during welding, leading to decreased sealing and corrosion resistance; and third, in severe cases, burn-through, where the current penetrates the sheet material, directly compromising the integrity of the roof panel. Any of these defects can fatally impact the waterproofing and sealing performance of the entire roofing system, ranging from minor leaks to large-scale rework, causing severe delays and economic losses.

[0004] The root cause of poor rib bonding lies in the actual working conditions at the construction site. Stainless steel roof panels inevitably deform during processing, transportation, and hoisting. Combined with accumulated installation errors, this often results in gaps of varying sizes between adjacent ribs. In some projects, these gaps are quite substantial. While existing roller electrodes in roll welding equipment possess some clamping capability, their clamping force primarily acts on a very small area near the welding point, and the clamping stroke is limited. This is insufficient to overcome the large gaps between the ribs, making it difficult to effectively press the panels together before welding. In other words, when the rib gap exceeds the adjustable range of the roll welding machine's clamping capacity, gaps remain between the panels even after the welding roller presses down, leading to uneven resistance heat distribution and inevitable weld failure. This problem frequently occurs during on-site construction and has become a key bottleneck restricting the quality and efficiency of roll welding for stainless steel roofs.

[0005] Currently, there is no effective solution to the above problems in existing technologies. Construction workers can only attempt to reduce gaps through primitive methods such as manual hammering, which is not only labor-intensive and inefficient, but also produces unstable and uncontrollable results, failing to meet the construction requirements of high-quality roofing projects. Therefore, there is an urgent need for an auxiliary device and supporting process that can proactively and reliably clamp and fit the ribs before the roll welding operation, fundamentally solving the welding failure problem caused by rib gaps and ensuring the welding quality and project reliability of stainless steel roofing systems. Summary of the Invention

[0006] Due to the aforementioned deficiencies in the existing technology, this invention proposes a stainless steel roof panel rib locking welding machine and its application. By configuring a self-propelled clamping device in front of the welding machine, multiple clamping wheels are used to force the multi-layer stainless steel plates of the ribs to be rolled and bonded together before welding. The clamping device and the welding machine move synchronously and in the same direction and are uniformly controlled to ensure that the welding part is always in a tight fit with zero gap, thereby fundamentally improving the welding quality and construction efficiency of the stainless steel roofing system.

[0007] To achieve the above objectives, on the one hand, the present invention provides a stainless steel roof panel rib locking welding machine, including a welding machine and a clamping device;

[0008] The welding machine and clamping device move relative to the roof panel along the length of the rib; the clamping device is positioned directly in front of the welding machine in the direction of travel.

[0009] The clamping device includes several sets of clamping wheels, which are divided into two rows and located on both sides of the rib to be welded; each set of clamping wheels is arranged in multiple rows along the direction of travel to form a progressive clamping structure.

[0010] The clamping device and the welding machine are centrally controlled by the same control system, and the two are completely synchronized: the start and stop commands are consistent, and the travel speed is exactly the same; the control system controls the plate rib section that the clamping device has just rolled and pressed together to be welded by the welding machine behind it in real time.

[0011] The above technical solution uses multiple clamping rollers to progressively roll-lock the ribs before welding, forcibly eliminating gaps between multiple layers of stainless steel sheets. This fundamentally prevents quality problems such as incomplete welding, poor penetration, blackening, and burn-through caused by misalignment of the ribs. The welding machine follows synchronously, allowing the relatively fixed roof panel to move independently during operation, requiring minimal manual intervention and resulting in high construction efficiency.

[0012] In some embodiments, the welding machine is equipped with a welding wheel; the welding wheel applies constant mechanical pressure and passes an electric current to the plate ribs clamped and bonded by the clamping device, and uses resistance heat to melt the contact surface of the plate ribs and form a continuous sealing weld.

[0013] In some embodiments, a motor is installed inside the clamping device to provide power for the machine's movement and rolling; a support leg is connected to the lower part of the machine body, and a traveling wheel is installed at the bottom of the support leg. In this way, the clamping device, which has its own motor, support leg, and traveling wheel, can move forward while clamping the ribs of the plate.

[0014] In some embodiments, the clamping device is integrated with the welding machine on the same frame to form a single unit or is a separate device with electrical linkage.

[0015] On the other hand, the present invention provides a method of using a stainless steel roof panel rib locking welding machine, including the following steps: during operation, the roof panel is fixed to the working surface and remains stationary during construction, and the clamping device rolls forward along the ribs of the roof panel; when the clamping device moves forward on its own, the ribs first enter between the clamping wheels, and multiple clamping wheels clamp while rolling forward with the device, gradually squeezing the multi-layer stainless steel sheets that originally had gaps in the ribs until they are completely bonded.

[0016] The control system ensures that the rib section of the plate that has just been rolled and bonded by the clamping device is welded by the welding machine behind it in real time, with zero delay in the process connection.

[0017] In some embodiments, the traveling wheels of the clamping device are supported on the surface of the roof panel, and the entire clamping device is driven by a motor to roll forward along the ribs of the panel.

[0018] Compared with the prior art, the technical effects of the present invention are as follows:

[0019] (1) Eliminate welding defects: By setting multiple clamping wheels (2.1) before welding to progressively roll and lock the plate ribs (3.1), the gap between the multiple layers of stainless steel plates is forcibly eliminated, thus eliminating quality problems such as false welding, incomplete welding, blackening and burn-through caused by the non-fitting of the plate ribs.

[0020] (2) Self-propelled collaborative operation: The clamping device (2) has its own motor (2.4), support legs (2.2) and walking wheels (2.3), which can move forward while clamping the ribs of the plate; the welding machine (1) follows synchronously, and the roof panel with the whole machine relatively fixed moves forward without a lot of manual intervention, resulting in high construction efficiency.

[0021] (3) Precise and unified control: The welding machine and clamping device start and stop synchronously, have the same speed, and are controlled by the same control system, which ensures perfect timing matching between the plate rib bonding and welding process. Each weld is formed in the best bonding state, and the quality is stable and reliable.

[0022] (4) Strong on-site adaptability: This device greatly reduces the dependence on the processing and installation accuracy of the roof panels. Even if there is a large deformation or gap in the ribs on site, multiple clamping wheels can still effectively compact them. It has a wide range of applications and significant economic benefits. Attached Figure Description

[0023] The invention, its features, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings. The drawings are not drawn to scale; their purpose is to illustrate the gist of the invention.

[0024] Figure 1 This is a schematic diagram of the planar structure of a stainless steel roof panel rib locking and welding integrated machine according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the elevation structure of the clamping device according to an embodiment of the present invention during use.

[0026] Reference numerals in the attached drawings: 1. Welding machine; 1.1. Welding wheel; 2. Clamping device; 2.1. Clamping wheel; 2.2. Support leg; 2.3. Traveling wheel; 2.4. Motor; 3. Roof panel; 3.1. Rib. Detailed Implementation

[0027] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] It should be noted that the device structure and accompanying drawings of this invention mainly describe the principle of this invention. In terms of the technical aspects of this design principle, the setting of the device's power mechanism, power supply system, and control system is not fully described. However, those skilled in the art who understand the principle of the invention can clearly understand the specifics of its power mechanism, power supply system, and control system. The control method can be automatic control through a controller based on the description in the specification. The control algorithm of the controller can be implemented by simple programming by those skilled in the art.

[0029] Example

[0030] like Figure 1 , 2 As shown in the figure, this embodiment discloses a stainless steel roof panel rib locking and welding integrated machine, which mainly includes a welding machine 1 and a clamping device 2. During construction, the roof panel 3 is fixed to the working surface and remains stationary. The welding machine 1 and the clamping device 2 move relative to the roof panel 3 along the length direction of the rib 3.1.

[0031] Structure and operation of the clamping device:

[0032] The clamping device 2 is positioned directly in front of the welding machine 1 in the direction of travel. As a preferred embodiment, the clamping device 2 has a motor 2.4 installed inside its body to provide power for movement and rolling. Support legs 2.2 are connected to the lower part of the body, and wheels 2.3 are mounted on the bottom of the support legs 2.2. During operation, the wheels 2.3 support the surface of the roof panel 3 (e.g., a flat area), and driven by the motor 2.4, the clamping device 2 rolls forward along the ribs 3.1. It is understood that the structure enabling the clamping device to move independently is not limited to this; any structure capable of self-movement is acceptable.

[0033] The clamping device 2 is equipped with several sets of clamping wheels 2.1, which are arranged in two rows on the left and right (or top and bottom) sides of the rib 3.1. Each set of clamping wheels 2.1 is arranged in multiple rows along the direction of travel, forming a progressive clamping structure. When the clamping device 2 moves forward, the roof panel rib 3.1 first enters between the clamping wheels 2.1. The multiple clamping wheels 2.1 clamp while rolling forward with the device, gradually squeezing the multi-layered stainless steel sheets that originally had gaps in the rib 3.1 until they are completely bonded.

[0034] Structure and operation of welding machine:

[0035] The welding machine 1 follows the clamping device 2. As a preferred technical solution, it is equipped with a welding wheel 1.1, i.e., a roller electrode. After the plate ribs 3.1 are rolled and bonded by the clamping device 2, they immediately enter the working position of the welding machine 1. The welding wheel 1.1 applies constant mechanical pressure and passes current on the bonded plate ribs 3.1, and uses resistance heat to melt the contact surface of the plate ribs and form a continuous sealing weld.

[0036] Synchronous linkage control:

[0037] The clamping device 2 and the welding machine 1 are centrally controlled by the same control system, maintaining complete synchronization: the start and stop commands are consistent, and the travel speed is exactly the same. This synchronous control ensures that the section of the plate rib that the clamping device 2 has just rolled and pressed against is precisely welded by the welding wheel 1.1 of the welding machine 1 behind it, with zero delay in process connection. In specific implementations, the clamping device 2 and the welding machine 1 can be integrated into the same frame to form a single machine, or they can be separate devices but achieve the above-mentioned synchronization function through electrical linkage.

[0038] Those skilled in the art should understand that variations can be implemented by combining existing technology with the above embodiments, which will not be elaborated here. Such variations do not affect the substantive content of the present invention, and will not be elaborated here either.

[0039] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a conventional manner in the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the present invention. This does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the present invention's technical solutions still fall within the protection scope of the present invention.

Claims

1. A stainless steel roof panel rib locking welding machine, comprising a welding machine (1), characterized in that, It also includes a clamping device (2); The welding machine (1) and the clamping device (2) move relative to the roof panel (3) along the length direction of the rib (3.1); the clamping device (2) is arranged directly in front of the direction of travel of the welding machine (1); The clamping device (2) includes several sets of clamping wheels (2.1), which are divided into two rows and located on both sides of the plate rib (3.1) to be welded; each set of clamping wheels (2.1) is arranged in multiple rows along the direction of travel to form a progressive clamping structure; The clamping device (2) and the welding machine (1) are centrally controlled by the same control system and are completely synchronized: the start and stop commands are consistent and the travel speed is exactly the same; the control system controls the clamping device (2) to roll and press the rib section of the plate to be welded by the welding machine (1) in real time.

2. The stainless steel roof panel rib locking welding machine according to claim 1, characterized in that, The welding machine (1) is equipped with a welding wheel (1.1); the welding wheel (1.1) applies constant mechanical pressure and current to the plate rib (3.1) clamped and attached by the clamping device, and uses resistance heat to melt the contact surface of the plate rib and form a continuous sealing weld.

3. The stainless steel roof panel rib locking welding machine according to claim 1, characterized in that, The clamping device (2) has a motor (2.4) inside its body, which provides the machine with the power for walking and rolling; the lower part of the machine body is connected to a support leg (2.2), and the bottom of the support leg (2.2) is equipped with a walking wheel (2.3).

4. The stainless steel roof panel rib locking welding machine according to claim 1, characterized in that, The clamping device (2) is integrated with the welding machine (1) on the same frame to form a single unit or as a separate device with electrical linkage.

5. The method of using the stainless steel roof panel rib locking welding machine as described in any one of claims 1 to 4, characterized in that, The process includes the following steps: During operation, the roof panel (3) is fixed to the working surface and remains stationary during construction. The clamping device (2) rolls forward along the ribs (3.1) of the roof. When the clamping device (2) moves forward, the ribs (3.1) first enter between the clamping wheels (2.1). The multiple clamping wheels (2.1) clamp and roll forward with the device, gradually squeezing the multi-layer stainless steel sheets that originally had gaps in the ribs (3.1) until they are completely bonded. The control system controls the clamping device (2) to ensure that the rib section of the plate that has just been rolled and bonded is welded by the welding machine (1) behind it in real time.

6. The method of using the stainless steel roof panel rib locking welding machine according to claim 5, characterized in that, The walking wheels (2.3) of the clamping device (2) are supported on the surface of the roof panel (3), and driven by the motor (2.4), the clamping device (2) moves forward along the rib (3.1).

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