A multi-size self-adaptive rotary welding roller device for box and H-shaped steel components

Abstract

The utility model discloses a kind of multi-size self-adapting rotary welding roller devices for box type and H-shaped steel component, comprising: connecting seat, positive and negative screw rod is rotatably installed in connecting seat, one end of positive and negative screw rod is rotatably installed in connecting seat and is fixedly connected with the output shaft of first motor, first motor is fixedly installed in connecting seat one end, and the outer surface of positive and negative screw rod is screw mounted with Y-shaped butt ring, two groups of Y-shaped butt ring are rotatably installed with roller in two, and two groups of roller are rotatably installed with pressure clamping mechanism in two.The design of the pressure clamping mechanism makes it realize component surrounding type automatic clamping by electric push rod driving clamping arm, positive and negative screw rod adjusts roller spacing to complete component automatic splicing, second motor drives component stable rotation to cooperate laser ranging-controller-linear module's welding gun dynamic accurate control position, and no need for a large number of manual intervention throughout.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, specifically to a multi-size adaptive rotary welding roller device for box-type and H-shaped steel components. Background Technology

[0002] In the field of steel structure manufacturing, box-type and H-beam steel components are widely used in various scenarios such as construction, bridges, and industrial equipment due to their excellent mechanical properties and structural stability. Welding, as a key process in the production of these components, directly affects the quality of the components and even the overall project. Traditional welding equipment often suffers from poor compatibility, insufficient positioning accuracy, and easy deformation during welding when dealing with box-type and H-beam steel components of different sizes, making it difficult to meet the demands of modern production for efficient and precise welding.

[0003] For example, the national authorized patent announcement number CN209140108U discloses an automatic welding device for H-shaped steel components, including two fixed supports, each with a support rod welded to its top. A dual-axis motor is fixedly installed at the center inside the load-bearing housing, with threaded rods connected to both ends of the dual-axis motor. Threaded sleeves are screwed onto the threaded rods, and the front end of each threaded sleeve is welded to an external rod. A welding rod is rotatably connected to the bottom of the external rod via a rotating shaft. The front end of the rotating shaft passes through the external rod and extends to the outside, where it is welded to a driven gear. The driven gear meshes with the driving gear via a gear drive chain. The use of the dual-axis motor inside the load-bearing housing of this invention enables the horizontal movement of the component. The meshing connection between the two gears increases the rotational function of the component, improving the performance and working efficiency of the rod. Simultaneously, the sliding connection between the load-bearing housing and the external rod via a C-shaped groove improves the stability of the component.

[0004] However, the aforementioned automatic welding device for H-beams has a rigid structure for the fixed support and support rod, which cannot adjust the support spacing and clamping size. It requires frequent tooling changes for H-beams with different cross-sections of 200-800mm, and it cannot be adapted to box-type components, resulting in poor compatibility. Furthermore, the component is positioned on one side by the welding rod, which does not form a complete fixation. It is prone to displacement when rotating or moving, leading to a decrease in weld accuracy. Utility Model Content

[0005] The purpose of this invention is to provide a multi-size adaptive rotary welding roller device for box-type and H-type steel components, so as to solve the problems of poor adaptability of the device to multi-size box-type and H-type steel and unstable component fixation and easy displacement mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A multi-size adaptive rotary welding roller device for box-type and H-type steel components includes: a connecting seat, in which positive and negative lead screws are rotatably installed, one end of which passes through the connecting seat and is fixedly connected to the output shaft of a first motor, the first motor being fixedly installed at one end of the connecting seat; Y-shaped mating rings are threaded onto the outer surfaces of the positive and negative threads of the lead screws; rollers are rotatably installed in both sets of Y-shaped mating rings, and the rollers are embedded in the inner ring surface of the Y-shaped mating rings via guide rails fixedly installed on their outer surfaces; and clamping mechanisms are rotatably installed in both sets of rollers.

[0007] Preferably, a toothed ring is fixedly installed on the outer surface of one of the guide rail rings of the two sets of rollers. The toothed ring meshes with a gear through the upper opening of the Y-shaped docking ring. The gear is fixedly installed at one end of the output shaft of the second motor, and the second motor is fixedly installed at one end of the upper surface of the Y-shaped docking ring.

[0008] Preferably, a linear module is fixedly installed at one end of the connecting seat and positioned between the two sets of rollers. An L-shaped plate is fixedly installed at one end of the moving block of the linear module. A welding gun is installed on the lower surface of the L-shaped plate, and a laser rangefinder is provided on one side of the welding gun. The laser rangefinder is perpendicular to the center of the positive and negative lead screws.

[0009] Preferably, the signal transmitting end of the laser ranging sensor is connected to the signal receiving end of the controller, and the control output end of the controller is electrically connected to the electronic control end of the linear module. The models of the laser ranging sensor and the controller are SICKDT50-P1111 and S7-1200, respectively.

[0010] Preferably, the clamping mechanism includes four sets of clamping arms, which are rotatably mounted at four ends inside the drum. Each set of clamping arms has a connecting arm rotatably mounted at its middle section. The other ends of the four sets of connecting arms are rotatably mounted at four ends on the outer surface of the pusher plate. The pusher plate is fixedly mounted at one end of the piston rod of the electric push rod, and the electric push rod is fixedly mounted at one end inside the drum.

[0011] Preferably, the electric push rod can pull the connecting arm by pulling the push plate, thereby causing the four sets of clamping arms to retract synchronously and surround the workpiece for clamping.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This device achieves automatic component clamping by driving the clamping arm with an electric push rod, automatically splicing components by adjusting the roller spacing with forward and reverse screws, and dynamically and precisely controlling the welding gun with a second motor that drives the component to rotate stably, in conjunction with the laser rangefinder-controller-linear module. The entire process requires minimal manual intervention. It can adapt to box-shaped and H-shaped steel components of different sizes from 200-800mm, significantly reducing tooling change and manual operation time. It also ensures the coaxiality of component rotation and constant weld spacing, significantly reducing welding deviation and rework rate. Ultimately, it achieves high efficiency, precision and versatility in welding multi-specification components, effectively improving steel structure production efficiency and product quality, and reducing enterprise production input and labor costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the roller and toothed ring of this utility model; Figure 3 This is a schematic diagram of the clamping mechanism of this utility model.

[0014] In the diagram: 1. Connecting seat; 101. First motor; 102. Positive and negative lead screws; 103. Y-shaped docking ring; 104. Welding torch; 105. Roller; 106. Second motor; 107. Gear; 108. Linear module; 109. L-shaped plate; 110. Laser rangefinder sensor; 111. Guide rail ring; 112. Gear ring; 2. Clamping mechanism; 201. Electric push rod; 202. Clamping arm; 203. Connecting arm; 204. Pushing plate. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-3 This embodiment provides the following technical solution: like Figures 1-2As shown, a multi-size adaptive rotary welding roller device for box-type and H-type steel components includes: a connecting seat 1, in which positive and negative lead screws 102 are rotatably installed, one end of the positive and negative lead screws 102 passes through the connecting seat 1 and is fixedly connected to the output shaft of a first motor 101, the first motor 101 is fixedly installed at one end of the connecting seat 1, and Y-shaped docking rings 103 are threadedly installed on the outer surfaces of the positive and negative threads of the positive and negative lead screws 102, and rollers 105 are rotatably installed in both sets of Y-shaped docking rings 103. The rollers 105 are embedded and rotatably installed in the inner ring surface of the Y-shaped docking rings 103 through guide rail rings 111 fixedly installed on the outer surface, and clamping mechanisms 2 are rotatably installed in both sets of rollers 105.

[0017] A toothed ring 112 is fixedly installed on the outer surface of one of the guide rings 111 of the two sets of rollers 105. The toothed ring 112 meshes with a gear 107 through the upper opening of the Y-shaped docking ring 103. The gear 107 is fixedly installed at one end of the output shaft of the second motor 106. The second motor 106 is fixedly installed at one end of the upper surface of the Y-shaped docking ring 103.

[0018] A linear module 108 is fixedly installed at one end of the connecting seat 1 and is positioned between two sets of rollers 105. An L-shaped plate 109 is fixedly installed at one end of the moving block of the linear module 108. A welding gun 104 is installed on the lower surface of the L-shaped plate 109, and a laser range sensor 110 is provided on one side of the welding gun 104. The laser range sensor 110 is perpendicular to the center of the positive and negative lead screws 102.

[0019] The signal transmitting end of the laser rangefinder 110 is connected to the signal receiving end of the controller, and the control output end of the controller is electrically connected to the electronic control end of the linear module 108. The models of the laser rangefinder 110 and the controller are SICKDT50-P1111 and S7-1200, respectively.

[0020] Through the design of the first motor 101, positive and negative lead screws 102, Y-shaped docking ring 103, welding torch 104, rollers 105, second motor 106, gears 107, linear module 108, laser rangefinder sensor 110, and clamping mechanism 2, in actual operation, the two sets of box-shaped or H-shaped steel components to be welded are first placed between the two sets of rollers 105. The clamping mechanism 2 inside the two sets of rollers 105 is then activated to clamp one end of the component, ensuring that the component will not shift axially or radially in subsequent operations. Then, according to the length dimensions of the two sets of components, the first motor 101 is activated. The rotating screw 102 inside the connecting seat 1 causes the positive and negative threads 102 to rotate. Since two sets of Y-shaped mating rings 103 are threaded onto the outer surfaces of the positive and negative threads of the screw 102, the rotation of the screw 102 causes the two sets of Y-shaped mating rings 103 to move synchronously in opposite directions along the axis of the screw 102. This causes the two sets of rollers 105 to move closer or further apart until the rollers 105 bring the other ends of the two components into contact and splice. Then, the second motor 106 on one set of rollers 105 can be activated to drive the gear 107 to mesh with the gear ring 112, causing the roller 105 to rotate within the Y-shaped mating rings 103, thus allowing the roller 105 to rotate. 5. The internally clamped group of components is rotated to precisely align and splice with the welding ends of another group of components. Afterwards, two sets of second motors 106 can be started simultaneously to rotate the components clamped within the two sets of rollers 105. The rollers 105 rotate within the Y-shaped docking ring 103 via guide rings 111, ensuring coaxiality and stability during component rotation. Simultaneously, the welding torch 104 can be activated for welding operations. At this time, the laser range sensor 110 on one side of the welding torch 104 will detect the distance between the component surface and the sensor in real time and transmit the detected distance signal to the controller. After analyzing and processing the signal, if the controller finds that the weld position of the component deviates from that of the welding torch 104 due to rotation or other factors, it will send a control command to the linear module 108. After receiving the command, the linear module 108 drives its moving block to drive the L-shaped plate 109 and the welding torch 104 to make fine adjustments so that the welding torch 104 always maintains the same position as the weld spacing of the component. The laser range sensor 110 is set perpendicular to the center of the positive and negative lead screws 102 to ensure the accuracy of the detection position and further ensure the welding precision. Finally, it realizes stable, accurate and efficient rotary welding operations for box-shaped and H-shaped steel components of different sizes.

[0021] like Figure 3As shown, the clamping mechanism 2 includes four sets of clamping arms 202, which are rotatably mounted at four ends inside the roller 105. Connecting arms 203 are rotatably mounted on the middle sections of each of the four sets of clamping arms 202. The other ends of the connecting arms 203 are rotatably mounted on the four ends of the outer surface of the push plate 204. The push plate 204 is fixedly mounted on one end of the piston rod of the electric push rod 201, which is fixedly mounted on one end inside the roller 105. The electric push rod 201 can pull the connecting arms 203 by pulling the push plate 204, causing the four sets of clamping arms 202 to retract synchronously and clamp the workpiece in a surrounding manner. The workpiece includes box-shaped steel components or H-shaped steel components.

[0022] By designing the electric push rod 201, clamping arms 202, connecting arms 203, and push plate 204, after placing the box-shaped or H-shaped steel component to be welded between the four clamping arms 202 inside the two sets of rollers 105, the electric push rod 201 inside the two sets of rollers 105 can be activated. Its piston rod retracts inward towards the rollers 105, driving the push plate 204 fixed at one end of the piston rod to move synchronously. Since the four ends of the outer surface of the push plate 204 are respectively rotatably connected to the four sets of connecting arms 203, and the other ends of the four sets of connecting arms 203 are correspondingly rotatably installed in the middle section of the four sets of clamping arms 202, the movement of the push plate 204 will affect the connecting arms 202. 03 generates a pulling force, causing the connecting arm 203 to rotate around the connection point with the push plate 204; while one end of the four sets of clamping arms 202 is rotatably installed inside the roller 105. Under the pulling action of the connecting arm 203, the four sets of clamping arms 202 will synchronously retract towards the component around their own rotation connection point with the roller 105, and finally surround and clamp the two ends of the component from all sides. This surround clamping method not only avoids the local depression of the component and deformation of the flange caused by excessive force at a single point, but also prevents the component from axial movement or radial displacement due to force imbalance during subsequent rotational welding, thus providing a basis for stable rotation.

[0023] Based on the above technical solution, the working steps of this solution are summarized as follows: In actual operation, firstly, the two sets of box-shaped or H-shaped steel components to be welded are placed between the four sets of clamping arms 202 inside the two sets of rollers 105. Then, the electric push rods 201 inside the two sets of rollers 105 can be activated, and their piston rods retract inward towards the inside of the rollers 105, driving the push plate 204 fixed at one end of the piston rod to move synchronously. Since four sets of connecting arms 203 are rotatably connected to the four ends of the outer surface of the push plate 204, and the other ends of the four sets of connecting arms 203 are rotatably installed in the middle section of the four sets of clamping arms 202, the movement of the push plate 204 will generate a pulling force on the connecting arms 203, causing the connecting arms 203 to rotate around the connection point with the push plate 204; and the four sets of clamping arms One end of the clamping arm 202 is rotatably installed inside the roller 105. Under the pulling action of the connecting arm 203, the four clamping arms 202 will synchronously retract towards the component around the rotational connection point between themselves and the roller 105, ultimately clamping both ends of the component from all sides. Then, the first motor 101 can be started, which drives the positive and negative screws 102 in the connecting seat 1 to rotate. Since two sets of Y-shaped mating rings 103 are respectively threaded on the outer surface of the positive and negative threads of the positive and negative screws 102, under the rotation of the positive and negative screws 102, the two sets of Y-shaped mating rings 103 will synchronously move in opposite directions along the axis of the positive and negative screws 102, thereby driving the two rollers 105 to move closer or further apart, until the rollers 105 drive the other ends of the two components. After the components are joined together, the second motor 106 on one set of rollers 105 can be activated to drive the gear 107 to mesh with the gear ring 112, causing the roller 105 to rotate within the Y-shaped docking ring 103. This allows the roller 105 to rotate a set of components clamped inside, precisely aligning and joining them with the welding ends of the other set of components. Afterward, both sets of second motors 106 can be activated simultaneously to rotate the components clamped within both sets of rollers 105. The rollers 105 rotate within the Y-shaped docking ring 103 via the guide ring 111, ensuring coaxiality and stability during component rotation. Simultaneously, the welding torch 104 can be activated for welding operations. At this time, the laser range sensor 110 on one side of the welding torch 104 will... The distance between the component surface and the sensor is detected in real time, and the detected distance signal is transmitted to the controller. After analyzing and processing the signal, if the controller finds that the weld position is deviated from the welding torch 104 due to the component rotation or other factors, it will send a control command to the linear module 108. After receiving the command, the linear module 108 drives its moving block to drive the L-shaped plate 109 and the welding torch 104 to make fine adjustments so that the welding torch 104 always maintains the same position as the weld distance of the component. The laser range sensor 110 is set perpendicular to the center of the positive and negative screw 102 to ensure the accuracy of the detection position and further ensure the welding precision. Finally, it realizes stable, accurate and efficient rotary welding operation for box-shaped and H-shaped steel components of different sizes.

[0024] In summary: The electric push rod drives the clamping arm to achieve automatic clamping of components, the positive and negative screws adjust the roller spacing to complete the automatic splicing of components, and the second motor drives the stable rotation of the components. Combined with the laser rangefinder-controller-linear module, the welding gun is dynamically and precisely positioned. The entire process requires minimal manual intervention and can adapt to box-type and H-shaped steel components of different sizes from 200-800mm. This significantly reduces tooling change and manual operation time, effectively improving the production efficiency and product quality of steel structures.

[0025] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-size adaptive rotary welding roller device for box-type and H-shaped steel components, characterized in that, include: A connecting seat (1) is provided, in which a positive and negative lead screw (102) is rotatably installed. One end of the positive and negative lead screw (102) passes through the connecting seat (1) and is fixedly connected to the output shaft of the first motor (101). The first motor (101) is fixedly installed at one end of the connecting seat (1). Y-shaped docking rings (103) are threaded on the outer surfaces of the positive and negative threads of the positive and negative lead screws (102). Rollers (105) are rotatably installed in both sets of Y-shaped docking rings (103). The rollers (105) are embedded and rotatably installed in the inner ring surface of the Y-shaped docking rings (103) through guide rail rings (111) fixedly installed on the outer surface. Clamping mechanisms (2) are rotatably installed in both sets of rollers (105).

2. The multi-size adaptive rotary welding roller device for box-type and H-shaped steel components according to claim 1, characterized in that: A toothed ring (112) is fixedly installed on the outer surface of one of the guide rings (111) of the two sets of rollers (105). The toothed ring (112) meshes with a gear (107) through the upper opening of the Y-shaped docking ring (103). The gear (107) is fixedly installed at one end of the output shaft of the second motor (106). The second motor (106) is fixedly installed at one end of the upper surface of the Y-shaped docking ring (103).

3. The multi-size adaptive rotary welding roller device for box-type and H-shaped steel components according to claim 1, characterized in that: One end of the connecting seat (1) is fixedly installed with a linear module (108) and positioned between two sets of rollers (105). One end of the moving block of the linear module (108) is fixedly installed with an L-shaped plate (109). A welding gun (104) is installed on the lower surface of the L-shaped plate (109), and a laser range sensor (110) is provided on one side of the welding gun (104). The laser range sensor (110) is perpendicular to the center of the positive and negative lead screws (102).

4. A multi-size adaptive rotary welding roller device for box-type and H-shaped steel components according to claim 3, characterized in that: The signal transmitting end of the laser rangefinder (110) is connected to the signal receiving end of the controller, and the control output end of the controller is electrically connected to the electronic control end of the linear module (108).

5. A multi-size adaptive rotary welding roller device for box-type and H-shaped steel components according to claim 1, characterized in that: The clamping mechanism (2) includes four sets of clamping arms (202). The four sets of clamping arms (202) are rotatably installed at four ends inside the drum (105). A connecting arm (203) is rotatably installed in the middle section of each of the four sets of clamping arms (202). The other end of the four sets of connecting arms (203) is rotatably installed at four ends on the outer surface of the push plate (204). The push plate (204) is fixedly installed at one end of the piston rod of the electric push rod (201). The electric push rod (201) is fixedly installed at one end inside the drum (105).

6. A multi-size adaptive rotary welding roller device for box-type and H-shaped steel components according to claim 5, characterized in that: The electric push rod (201) can pull the connecting arm (203) by pulling the push plate (204), which will drive the four sets of clamping arms (202) to retract synchronously and surround the workpiece for clamping.

Images