Pipe welding equipment

Abstract

The invention discloses pipe welding equipment. The pipe welding equipment comprises a pushing and conveying device, a distributing device and a welding device. The material pushing and conveying device is provided with a rack, the material distributing device is arranged at the bottom of the rack and comprises a first material distributing mechanism and a second material distributing mechanism, the first material distributing mechanism and the second material distributing mechanism each comprise a material distributing plate and a lifting driving assembly, and the lifting driving assemblies are in driving connection with the material distributing plates so as to drive the material distributing plates to ascend and descend in the height direction of the rack. The tops of the material distributing plates are provided with material distributing slopes, and the inclination directions of the material distributing slopes on the material distributing plates of the first material distributing mechanism and the second material distributing mechanism are opposite. The welding device comprises a first welding mechanism and a second welding mechanism, the first welding mechanism corresponds to the first material distributing mechanism so as to be used for welding the pipes distributed by the first material distributing mechanism, and the second welding mechanism corresponds to the second material distributing mechanism so as to be used for welding the pipes distributed by the second material distributing mechanism. The pipe welding equipment solves the problem that the production efficiency of pipe welding is low.

Description

Technical Field

[0001] This invention relates to the field of pipe welding technology, and more specifically, to a pipe welding device. Background Technology

[0002] Currently, circumferential welding of space frame pipes is mainly carried out by manual welding or automatic welding equipment. When using welding equipment for automatic welding of pipes, the welding equipment line can only move the pipe to one side of the welding equipment when transporting the pipe, making it difficult to move the pipe to multiple sides. It can only perform single-station welding or achieve multi-station welding by extending the length of the welding equipment line, resulting in relatively low production efficiency of the entire pipe welding equipment line. Summary of the Invention

[0003] The main objective of this application is to provide a pipe welding device to at least solve the problem of low production efficiency in pipe welding equipment.

[0004] According to one aspect of the present invention, a pipe welding apparatus is provided, comprising: A material conveying device includes a frame, a conveying mechanism, and a pushing mechanism. The conveying mechanism is rotatably mounted on the top of the frame, and the pushing mechanism is mounted on the frame and can move along the length of the frame. The material dispensing device is located at the bottom of the frame. The material dispensing device includes a first material dispensing mechanism and a second material dispensing mechanism. Both the first material dispensing mechanism and the second material dispensing mechanism include a material dispensing plate and a lifting drive assembly. The lifting drive assembly is driven to the material dispensing plate to drive the material dispensing plate to move up and down along the height direction of the frame. The top of the material dispensing plate is provided with a material dispensing slope. The inclination directions of the material dispensing slopes on the material dispensing plate of the first material dispensing mechanism and the material dispensing plate of the second material dispensing mechanism are opposite. A welding apparatus, comprising a first welding mechanism and a second welding mechanism, wherein the first welding mechanism corresponds to the first material distribution mechanism for welding the pipes distributed by the first material distribution mechanism, and the second welding mechanism corresponds to the second material distribution mechanism for welding the pipes distributed by the second material distribution mechanism.

[0005] Furthermore, the material conveying mechanism includes a plurality of transmission rollers spaced apart along the length of the frame. Each transmission roller is located at the top of the frame and can rotate relative to the frame. The frame is provided with a first frame section and a second frame section in sequence along its length. The material pushing mechanism includes a pushing component and a pushing plate. The pushing component is located at the first frame section and can move along the length of the first frame section. The pushing plate is located at the top of the transmission rollers. The pushing plate is connected to the pushing component to push the pipe on the transmission rollers along the length of the first frame section under the action of the pushing component.

[0006] Furthermore, the lifting drive assembly includes a first connecting rod, a second connecting rod, a linkage rod, and a drive component. The first end of the first connecting rod is hinged to the bottom of the material distribution plate. The second end of the first connecting rod, opposite to the first end, is sleeved on the linkage rod. The first end of the second connecting rod, opposite to the first end, is drivenly connected to the drive component. The drive component is fixedly connected to the second frame section.

[0007] Furthermore, both the first and second material distribution mechanisms include multiple material distribution plates, which are spaced apart along the length of the second frame section. Each material distribution plate is located at the bottom of the second frame section and can move up and down within the gap between two adjacent transmission rollers. The first connecting rod, the second connecting rod, and the material distribution plates are arranged in a one-to-one correspondence. The linkage rod extends along the length of the second frame section, and the first connecting rod and the second connecting rod, which are arranged in a one-to-one correspondence along the extension direction of the linkage rod, are sleeved on the linkage rod.

[0008] Furthermore, the material distribution mechanism also includes a fixed base plate, which is fixedly disposed on the second frame section and extends along the height direction of the second frame section. The material distribution plate is mounted on the fixed base plate through a guide component. The material distribution plate is parallel to the fixed base plate. The guide component includes multiple guide rollers, which are rotatably mounted on the fixed base plate and located on both sides of the material distribution plate along the height direction. The side of the material distribution plate can move relative to the guide rollers.

[0009] Furthermore, the pipe welding equipment also includes a length detection mechanism, which is disposed at one end of the first frame section near the second frame section. The length detection mechanism includes: A lifting assembly is disposed at the bottom of the first frame section. The lifting assembly includes a first baffle and a telescopic component. The first baffle is connected to the telescopic component and can be raised and lowered within the gap between two adjacent transmission rollers under the drive of the telescopic component. A positioning detection element is disposed on the side of the first baffle near the push plate to detect the distance between the push plate and the first baffle.

[0010] Furthermore, the pipe welding equipment also includes an outer diameter detection mechanism, which is disposed on the first frame section. The outer diameter detection mechanism includes a bidirectional cylinder, a first clamping arm, a second clamping arm, and a displacement detection component. The bidirectional cylinder is fixedly connected to the bottom of the first frame section. A fifth telescopic rod and a sixth telescopic rod are respectively disposed at opposite ends of the bidirectional cylinder. The first clamping arm is connected to the fifth telescopic rod, and the second clamping arm is connected to the sixth telescopic rod. The first clamping arm and the second clamping arm are located within the gap between two adjacent transmission rollers and extend along the height direction of the first frame section. The displacement detection component is disposed between the first clamping arm and the first frame section or between the second clamping arm and the first frame section.

[0011] Furthermore, the pipe welding equipment also includes a material transfer device, which includes a first material transfer mechanism and a second material transfer mechanism. The second frame section includes a first side and a second side opposite to each other. The first material transfer mechanism is disposed on the first side, and the second material transfer mechanism is disposed on the second side. Both the first and second material transfer mechanisms include a material transfer base, a material transfer lifting seat, and a material loading component. The material transfer base is disposed on the side of the second frame section along its length and moves along the length of the second frame section. The material transfer lifting seat is disposed on the material transfer base and moves along the height of the second frame section. The material loading component is disposed on the material transfer lifting seat and can move relative to the material transfer lifting seat along the width of the second frame section.

[0012] Furthermore, both the first welding mechanism and the second welding mechanism include a displacement slide rail, a displacement component, and a welding component. Along the width direction of the second frame section, the displacement slide rail is disposed on the side of the first material transfer mechanism away from the second frame section and extends along the length direction of the second frame section. The displacement component is disposed on the displacement slide rail and can move along the length direction of the displacement slide rail. The welding component is disposed at the end of the displacement slide rail.

[0013] Furthermore, the displacement assembly includes a first displacement machine and a second displacement machine. Along the length direction of the displacement slide rail, the first displacement machine and the second displacement machine are sequentially arranged on the displacement slide rail and can both move along the length direction of the displacement slide rail. One of the first displacement machine and the second displacement machine is provided with a first center component that can rotate and move along the length direction of the displacement slide rail, and the other of the two is provided with a second center component that can rotate. The welding assembly includes a first welding robotic arm and a second welding robotic arm. The first welding robotic arm is arranged at the first end of the displacement slide rail, and the second welding robotic arm is arranged at the second end opposite to the first end of the displacement slide rail.

[0014] In this invention, by setting the distributing ramps of the first and second distributing mechanisms to have opposite inclination directions, when the pipe is conveyed by the conveying mechanism to the top of the distributing device, the distributing plate moves up and down through the lifting drive assembly. The corresponding distributing ramp pushes the pipe to the corresponding side, causing the pipe to slide from the top of the frame to the corresponding first or second welding mechanism below, thus achieving dual-station welding. The pipe welding equipment can simultaneously feed pipes to both sides of the frame, realizing dual welding stations on a single conveyor line. This avoids the shortcomings of traditional equipment that can only weld at a single station or requires extending the line length, significantly improving the welding efficiency of pipes. The pipes are conveyed to the top of the material distribution device via a pushing and conveying mechanism. The first welding mechanism corresponds to the first material distribution mechanism, and the second welding mechanism corresponds to the second material distribution mechanism. The distributed pipes can be welded simultaneously at stations on both sides of the frame, forming a streamlined operation from material distribution to dual-station welding. Compared to single-station welding, which requires waiting for the previous pipe to finish welding before feeding, the parallel operation of dual stations shortens the overall pipe production cycle and improves the production efficiency of the pipe welding equipment. The pushing and conveying device is located at the top of the frame, the material distribution device is located at the bottom of the frame, and the welding device corresponds to the material distribution device. This integrates conveying, material distribution, and dual-station welding functions within a limited space, improving the compactness of the pipe welding equipment. The lifting drive assembly not only drives the material distribution plate to rise and fall but also adjusts its height to accommodate pipes of different diameters or weights. It is compatible with various specifications of mesh pipes, enhancing the versatility and production flexibility of the pipe welding equipment. The first and second welding mechanisms can weld different types of pipes simultaneously. By operating the first and second welding mechanisms independently, the production capacity of different types of pipes can be flexibly allocated according to production needs, meeting diverse production scenarios. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, are illustrative and descriptive, serving to explain this application and do not constitute an undue limitation thereof. In the drawings: Figure 1This is a schematic diagram of the pipe welding equipment disclosed in an embodiment of the present invention; Figure 2 This is a schematic diagram of the material conveying device disclosed in an embodiment of the present invention; Figure 3 This is a partial structural schematic diagram of the material pushing and conveying device disclosed in an embodiment of the present invention; Figure 4 This is a schematic diagram of the assembly structure of the material conveying mechanism and the material pushing mechanism disclosed in an embodiment of the present invention. Figure 5 This is a schematic diagram of the length detection mechanism disclosed in an embodiment of the present invention after the first baffle is raised; Figure 6 This is a schematic diagram of the length detection mechanism disclosed in an embodiment of the present invention after the first baffle has descended; Figure 7 This is a schematic diagram of the outer diameter detection mechanism disclosed in an embodiment of the present invention; Figure 8 This is a schematic diagram of the assembly structure of a material distribution device and a material conveying mechanism disclosed in an embodiment of the present invention; Figure 9 This is a schematic diagram of the material dispensing device disclosed in an embodiment of the present invention from a first perspective. Figure 10 This is a schematic diagram of the material dispensing device disclosed in an embodiment of the present invention from a second perspective; Figure 11 for Figure 10 Enlarged diagram of M in the middle; Figure 12 for Figure 8 A magnified diagram of N in the diagram; Figure 13 This is a schematic diagram of the assembly structure of the material transfer device, material conveying mechanism and welding device disclosed in the embodiments of the present invention; Figure 14 This is a schematic diagram of the assembly structure of the material transfer device and the material conveying mechanism disclosed in an embodiment of the present invention; Figure 15 for Figure 14 A magnified diagram of the letter O; Figure 16 for Figure 14 An enlarged schematic diagram of P in the middle; Figure 17 for Figure 15 Enlarged diagram of Q; Figure 18 This is a partial structural schematic diagram of the welding apparatus disclosed in an embodiment of the present invention; Figure 19 This is a plan view of the cone head disclosed in an embodiment of the present invention; Figure 20 This is a right view of the cone head disclosed in an embodiment of the present invention; Figure 21 This is a partial structural schematic diagram of a welding device including a first positioner disclosed in an embodiment of the present invention; Figure 22 This is a partial structural schematic diagram of a welding apparatus including a second positioner disclosed in an embodiment of the present invention.

[0016] The above figures include the following reference numerals: 11. Frame; 111. First frame section; 112. Second frame section; 1121. First side; 1122. Second side; 113. Roller drive assembly; 1131. Roller drive motor; 1132. Roller transmission belt; 114. Material transfer transition bracket; 1141. Material transfer transition surface; 12. Conveying mechanism; 121. Transfer roller; 1211. Annular groove; 13. Pushing mechanism; 131. Push plate; 132. Support component; 133. First slider; 134. First slide rail; 135. First rack; 136. Drive motor; 21. Material distribution plate; 211. Material distribution inclined surface; 22. Lifting drive assembly; 221. First connecting rod; 22 2. Second connecting rod; 223. Linkage rod; 224. Driving component; 2241. First cylinder body; 2242. First telescopic rod; 23. Fixed base plate; 24. Guide component; 241. Guide roller; 2411. Annular guide groove; 25. Rotary shaft seat; 26. Fixed base; 27. Right angle seat; 31. Length detection mechanism; 311. First baffle; 312. Position detection element; 313. Bracket; 3131. Guide groove; 314. First telescopic cylinder; 3141. Second cylinder body; 3142. Second telescopic rod; 315. Buffer cylinder; 32. Outer diameter detection mechanism; 321. Two-way cylinder; 3211. Fifth telescopic rod; 3212. Six telescopic rods; 322, First clamping arm; 323, Second clamping arm; 324, Displacement detection component; 3241, Encoder; 3242, Matching gear; 3243, Matching rack; 41, Transfer base; 411, Third slide rail; 412, Receiving guide component; 4121, Guide block; 4121-a, Guide slope; 4122, Second baffle; 42, Transfer lifting seat; 421, Third slider; 422, Lifting motor; 43, Loading component; 431, Telescopic arm; 4311, Loading groove; 432, Second telescopic cylinder; 4321, Fourth cylinder body; 4322, Fourth telescopic rod; 44, Second slide rail; 441, Second rack; 4 5. Drive components; 451. Transfer motor; 452. Transfer cylinder; 4521. Third cylinder body; 4522. Third telescopic rod; 51. Positioning slide rail; 52. Positioning assembly; 521. First positioner; 522. Second positioner; 523. First center component; 5231. Cone head; 5231-a. First conical ramp; 5231-b. Second conical ramp; 5231-c. Inclined groove; 524. Second center component; 53. Welding assembly; 531. First welding robotic arm; 532. Second welding robotic arm; 54. Finished product box; 55. Finished product guide ramp; 56. Welding machine; 57. Welding wire hopper; 58. Cleaning gun station; 59. Dust collector. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0019] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0020] See Figures 1 to 22 As shown in the embodiment of this application, a pipe welding device is provided, including a material conveying device, a material distributing device, and a welding device. The material conveying device includes a frame 11, a conveying mechanism 12, and a pushing mechanism 13. The conveying mechanism 12 is rotatably disposed on the top of the frame 11, and the pushing mechanism 13 is disposed on the frame 11 and can move along the length of the frame 11. The material distributing device is disposed at the bottom of the frame 11 and includes a first distributing mechanism and a second distributing mechanism. Both the first and second distributing mechanisms include a distributing plate 21 and a lifting drive assembly 22. The lifting drive assembly 22 is drivenly connected to the distributing plate 21 to drive the distributing plate 21 to rise and fall along the height direction of the frame 11. The top of the distributing plate 21 is provided with a distributing inclined surface 211. The inclination directions of the distributing inclined surfaces 211 on the distributing plate 21 of the first and second distributing mechanisms are opposite. The welding device includes a first welding mechanism and a second welding mechanism. The first welding mechanism corresponds to the first material distribution mechanism and is used to weld the pipes distributed by the first material distribution mechanism. The second welding mechanism corresponds to the second material distribution mechanism and is used to weld the pipes distributed by the second material distribution mechanism.

[0021] Specifically, when welding is required on the pipe, the pipe is first fed onto the conveying mechanism 12 at the top of the frame 11 of the conveying device in this embodiment. At least a portion of the pushing mechanism 13 abuts against the top of the pipe. The pushing mechanism 13 extends along the length of the frame 11 (e.g., Figure 1 , Figure 13 and Figure 14 The movement (in the direction indicated by the middle arrow x) propels the pipe along the length of the frame 11 on the feeding mechanism 12. When the pushing mechanism 13 pushes the pipe to a predetermined position along the length of the frame 11, the pushing mechanism 13 stops moving. The pipe is distributed by the distributing device on the frame 11. The first distributing mechanism of the distributing device can distribute the pipe to the first welding structure for welding, and the second distributing mechanism can distribute the pipe to the second welding structure for welding. When the first and second distributing mechanisms are welding the pipe, the lifting drive assembly 22 of the first or second distributing mechanism drives the distributing plate 21 to rise and fall along the height direction of the frame 11 (e.g., ...). Figure 1 , Figure 13 and Figure 14 (In the direction indicated by the middle arrow z), after the material distribution plate 21's distribution slope 211 contacts the pipe, the material distribution plate 21 continues to rise, which can push the pipe to the side of the frame 11 to realize the material distribution of the pipe. Since the inclination directions of the material distribution slope 211 of the first material distribution mechanism and the second material distribution mechanism are opposite, the pipe can be pushed to the two sides of the frame 11 and distributed to the first welding mechanism and the second welding mechanism respectively.

[0022] In this embodiment, the material distribution plate 21 of the first material distribution mechanism and the material distribution inclined surface 211 of the second material distribution mechanism have opposite inclination directions, which can distribute the pipe material to the workstation of the first welding structure or the second welding mechanism respectively, realizing multi-workstation welding of the pipe material. In this embodiment, photoelectric sensors are provided between the first welding mechanism and the frame 11, and between the second welding mechanism and the frame 11. The photoelectric sensor between the first welding mechanism and the frame 11 can detect whether there is pipe material being welded at the workstation where the first welding mechanism is located, and the photoelectric sensor between the second welding mechanism and the frame 11 can detect whether there is pipe material being welded at the workstation where the second welding mechanism is located. The pipe welding equipment in this embodiment also includes a controller, which is electrically connected to the photoelectric sensor, the first material distribution mechanism and the second material distribution mechanism respectively. The photoelectric sensor transmits the detected signal to the controller to determine the working status of the first welding mechanism and the second welding mechanism. The controller controls the operation of the first material distribution mechanism and the second material distribution mechanism according to the working status of the first welding mechanism and the second welding mechanism, which can reasonably allocate the pipe material to the corresponding welding workstation for welding, realize multi-workstation material distribution and welding of the pipe material, and improve the production efficiency of the pipe material.

[0023] Furthermore, the material conveying mechanism 12 includes a plurality of transmission rollers 121 spaced apart along the length of the frame 11. Each transmission roller 121 is located on the top of the frame 11 and can rotate relative to the frame 11. The frame 11 is provided with a first frame section 111 and a second frame section 112 in sequence along the length. The material pushing mechanism 13 includes a pushing component and a push plate 131. The pushing component is located on the first frame section 111 and can move along the length of the first frame section 111. The push plate 131 is located on the top of the transmission rollers 121. The push plate 131 is connected to the pushing component to push the pipe on the transmission rollers 121 along the length of the first frame section 111 under the action of the pushing component.

[0024] Each of the conveying rollers 121 has an annular groove 1211 on its outer circumferential surface. The annular groove 1211 is used to limit the movement of the pipe on the conveying roller 121, preventing the pipe from moving too far in the width direction of the frame 11 (e.g., ...). Figure 1 , Figure 13 and Figure 14 The pipe material is displaced (or even detached from the conveyor roller 121) in the direction indicated by the arrow y, thus improving the stability of the pipe conveying. Multiple spaced conveyor rollers 121 support the pipe material through their respective annular grooves 1211, forming a continuous guide path along the length of the frame 11 to ensure that the pipe material's conveying path does not deviate. Optionally, the cross-sectional shape of the annular groove 1211 in this embodiment can be V-shaped, U-shaped, or trapezoidal, etc.

[0025] Preferably, each transmission roller 121 mounted on the first frame section 111 is freely rotatable relative to the first frame section 111, and each transmission roller 121 mounted on the second frame section 112 rotates relative to the second frame section 112 under the drive of the roller drive assembly 113. When the push assembly drives the push plate 131 to push the pipe along the length direction of the first frame section 111 on the transmission rollers 121, the friction between the pipe and the annular groove 1211 of the transmission rollers 121 will cause the portion of the transmission rollers 121 supporting the pipe to rotate. (Reference) Figure 8 and Figure 12As shown, the roller drive assembly 113 includes a roller drive motor 1131 and a roller drive belt 1132. At least one roller drive motor 1131 is provided. The roller drive motor 1131 is driven by any transmission roller 121 on the second frame section 112 to drive the corresponding transmission roller 121 to rotate. The number of roller drive belts 1132 is one less than the number of transmission rollers 121 on the second frame section 112. For example, if the number of second frame sections 112 is n, then the number of roller drive belts 1132 is n-1. Any two adjacent transmission rollers 121 on the second frame section 112 are engaged with the same roller drive belt 1132. Driven by the roller drive motor 1131, at least one transmission roller 121 on the second frame section 112 drives the other transmission rollers 121 to rotate. The roller drive motor 1131 is electrically connected to a controller, which controls the operation of the roller drive motor 1131.

[0026] refer to Figure 3 and Figure 4 As shown, the pushing assembly includes a sliding component and a support member 132. The sliding component is connected to the first frame section 111 and can slide relative to the first frame section 111 along its length. The bottom end of the support member 132 is fixedly connected to the sliding component, and the top end of the support member 132 is hinged to the push plate 131. The sliding component is electrically connected to the controller. When the pipe is fed onto the transfer roller 121, the controller controls the sliding component to slide relative to the first frame section 111, driving the push plate 131 to push the pipe along the length of the first frame section 111 to move closer to the second frame section 112. The hinged structure between the push plate 131 and the support member 132 allows the push plate to rotate relative to the support member 132, which can better adapt to the end face of the pipe. The push plate 131 and the end face of the pipe can fit better, ensuring a uniform distribution of thrust and avoiding excessive local pressure caused by uneven contact between the push plate 131 and the pipe.

[0027] The sliding component includes a first slider 133, a first slide rail 134, a first rack 135, and a drive motor 136. The first slide rail 134 and the first rack 135 are mounted on the frame 11 and extend along the length of the frame 11. The first slider 133 is slidably mounted on the first slide rail 134. The support member 132 and the drive motor 136 are both mounted on the first slider 133. A first gear (not shown in the figure) meshes with the first rack 135 on the output shaft of the drive motor 136. When the drive motor 136 starts, its output shaft drives the first gear to rotate. Since the first gear meshes with the first rack 135, according to the gear and rack transmission principle, the first slider 133 moves along the extension direction of the first rack 135 and the first slide rail 134 under the rotation of the first gear. The movement of the first slider 133 drives the connected support member 132 and push plate 131 to move synchronously, thereby pushing the pipe to move on the transmission roller 121.

[0028] refer to Figures 9 to 12 As shown, the lifting drive assembly 22 includes a first connecting rod 221, a second connecting rod 222, a linkage rod 223, and a drive member 224. The first end of the first connecting rod 221 is hinged to the bottom of the material distribution plate 21. The second end of the first connecting rod 221 opposite to the first end is sleeved on the linkage rod 223. The first end of the second connecting rod 222 is sleeved on the linkage rod 223. The second end of the second connecting rod 222 opposite to the first end is drivenly connected to the drive member 224. The drive member 224 is fixedly connected to the second frame section 112. The drive component 224 is electrically connected to the controller. When the photoelectric sensor detects that no pipe is being welded at the corresponding workstation, and the pipe has fully reached the second frame section 112, the controller controls the drive component 224 of the material distribution mechanism corresponding to that workstation to run. The drive component 224 drives the second connecting rod 222 to rotate around the second end of the second connecting rod 222, thereby driving the first end of the second connecting rod 222 to rise and fall. Through the hinge between the first end of the second connecting rod 222 and the linkage rod 223, and the hinge between the second end of the first connecting rod 221 and the linkage rod 223, the second connecting rod 222 can be further driven to drive the material distribution plate 21 to rise and fall, thereby realizing the material distribution of the pipe.

[0029] Furthermore, both the first and second material distribution mechanisms include multiple material distribution plates 21. The multiple material distribution plates 21 are spaced apart along the length of the second frame section 112. Each material distribution plate 21 is located at the bottom of the second frame section 112 and can rise and fall within the gap between two adjacent transmission rollers 121. The first connecting rod 221, the second connecting rod 222, and the material distribution plates 21 are arranged in a one-to-one correspondence. The linkage rod 223 extends along the length of the second frame section 112. Along the extension direction of the linkage rod 223, the first connecting rod 221 and the second connecting rod 222, which are arranged in a one-to-one correspondence, are both sleeved on the linkage rod 223.

[0030] In this embodiment, the one-to-one correspondence between the first connecting rod 221, the second connecting rod 222, and the material distribution plate 21 indicates that in the first or second material distribution mechanism, the number of the first connecting rod 221, the second connecting rod 222, and the material distribution plate 21 are the same, and multiple first connecting rods 221 and their corresponding second connecting rods 222 are all sleeved on the same linkage rod 223. The linkage rod 223 extends along the length of the frame 11, enabling all material distribution plates 21 in the first or second material distribution mechanism to rise and fall synchronously. This ensures that all material distribution plates 21 in the first or second material distribution mechanism are on the same plane during lifting and falling, preventing the pipe from tilting or failing to distribute material. Multiple material distribution plates 21 are spaced apart along the length of the pipe, providing multi-point support when the pipe is lifted synchronously, distributing the weight of the pipe to multiple material distribution plates 21, and preventing a single material distribution plate 21 from being deformed or damaged due to excessive load. For thin-walled or easily deformable tubes (such as aluminum alloy tubes), multi-point synchronous lifting can avoid tube bending caused by uneven local stress, ensure the stability of the tube posture during the material distribution process, and the synchronous lifting of multiple material distribution plates 21 can evenly support the entire length of the tube, avoiding the situation of tube tilting or jamming due to local lag in lifting.

[0031] Understandably, the number of material distribution plates 21 in the first material distribution mechanism and the number of material distribution plates 21 in the second material distribution mechanism in this embodiment can be flexibly set according to the actual length of the pipe. The number of material distribution plates 21 in the first material distribution mechanism and the number of material distribution plates 21 in the second material distribution mechanism can be the same or different, as long as there are multiple plates.

[0032] Furthermore, the driving member 224 includes at least one. When there is only one driving member 224, the driving member 224 of the first dispensing mechanism is driven connected to any second link 222 of the first dispensing mechanism, and the driving member 224 of the second dispensing mechanism is driven connected to any second link 222 of the second dispensing mechanism.

[0033] In this embodiment, when the length of the linkage rod 223 is short and the number of material distribution plates 21 is small, the thrust of a single drive element 224 can be evenly transmitted to each material distribution plate 21 through the linkage rod 223. The motion synchronization can meet the basic requirements, and the structure of the material distribution mechanism can be simplified and the cost of the welding equipment can be reduced while ensuring the synchronous lifting and lowering of the material distribution plates 21. However, when the linkage rod 223 is long, when the driving force of a single drive element 224 is transmitted to the optimal material distribution plate 21 along the length direction of the linkage rod 223 from the drive element 224 through the second connecting rod 222, the elastic deformation of the linkage rod 223 may cause the material distribution plates 21 at both ends of the linkage rod 223 to lift and lower asynchronously. In this case, two drive elements 224 can be set at both ends of the linkage rod 223, or more drive elements 224 can be reasonably set along the length direction of the linkage rod 223. This improves the applicability and working condition adaptability of the pipe material distribution device of the welding equipment of this application.

[0034] Specifically, the driving component 224 includes a lifting cylinder, which comprises a first cylinder body 2241 and a first telescopic rod 2242. The first cylinder body 2241 is fixedly connected to the second frame section 112, and the first telescopic rod 2242 is hinged to the second connecting rod 222 and located between the first and second ends of the second connecting rod 222. The hinge point between the first telescopic rod 2242 and the second connecting rod 222 is located between the first and second ends of the second connecting rod 222, forming a force-saving lever structure. For example, if the distance from the hinge point to the second end is twice the distance to the first end, the output force of the lifting cylinder can be amplified by twice and applied to the linkage rod 223, reducing the rated thrust requirement of the lifting cylinder and improving the efficiency of pipe material distribution.

[0035] Optionally, in this embodiment, the second end of the second connecting rod 222 is rotatably connected to the second frame section 112 via a pivot seat 25. The pivot seat 25 can withstand radial and axial loads, and evenly distribute the force transmitted by the second connecting rod 222 to the second frame section 112.

[0036] Optionally, in this embodiment, the first cylinder 2241 and the second frame section 112 are fixedly connected by a fixed base 26. The fixed base 26 is fixedly installed on the second frame section 112, and the first cylinder 2241 is fixedly installed on the fixed base 26. The fixed base 26 can evenly distribute the thrust of the lifting cylinder to the second frame section 112, avoiding local stress concentration.

[0037] Furthermore, the material sorting mechanism also includes a fixed base plate 23, which is fixedly disposed on the second frame section 112 and extends along the height direction of the second frame section 112. The material sorting plate 21 is mounted on the fixed base plate 23 through a guide member 24. The material sorting plate 21 is parallel to the fixed base plate 23. The guide member 24 includes a plurality of guide rollers 241, which are rotatably mounted on the fixed base plate 23 and located on both sides of the material sorting plate 21 along the height direction. The side of the material sorting plate 21 can move relative to the guide rollers 241.

[0038] In this embodiment, the material distribution plate 21 is connected to the fixed base plate 23 via the guide component 24, ensuring that the material distribution plate 21 can accurately rise and fall along the height direction of the second frame section 112, avoiding the possibility of swaying errors causing the material distribution plate 21 to deviate during the rising and falling process. The rolling contact between the guide roller 241 and the side of the material distribution plate 21 reduces the driving force requirement compared to the traditional slider guide rail method, thus reducing the rated driving force of the drive component 224. Furthermore, it can limit the displacement of the material distribution plate 21 along the width direction of the second frame section 112 during the rising and falling process, improving the reliability of material distribution.

[0039] Furthermore, the fixed substrate 23 includes a first side and a second side, both of which are provided with guide members 24. The side of the dispensing plate 21 of the first dispensing mechanism can move along the guide roller 241 of the guide member 24 on the first side, and the side of the dispensing plate 21 of the second dispensing mechanism can move along the guide roller 241 of the guide member 24 on the second side. That is, the dispensing plates 21 of the first dispensing mechanism and the second dispensing mechanism can share a fixed substrate 23, which simplifies the structure of the dispensing device and makes the structure of the dispensing device more compact.

[0040] The guide roller 241 has an annular guide groove 2411 on its outer circumferential surface, allowing the side of the material distribution plate 21 to move within the annular guide groove 2411. The annular guide groove 2411 provides three-dimensional constraint on the side of the material distribution plate 21, preventing it from shifting along the length of the second frame section 112 during lifting and lowering, thus ensuring the reliability of pipe distribution. When the material distribution plate 21 tilts along the length of the second frame section 112 due to external force, the annular guide groove 2411 provides a corrective force, ensuring that the inclined surface 211 of the material distribution plate 21 always maintains good contact with the pipe.

[0041] Optionally, in this embodiment, the fixed base plate 23 is fixedly connected to the second frame section 112 via a right-angle seat 27. Along the width direction of the second frame section 112, both ends of the fixed base plate 23 are fixedly connected to the second frame section 112 via right-angle seats 27, forming a triangular stable structure, which enhances the resistance of the first and second material dispensing mechanisms to lateral impact and ensures the normal operation of material dispensing.

[0042] refer to Figure 3 , Figure 5 and Figure 6 As shown, the pipe welding equipment also includes a length detection mechanism 31. The length detection mechanism 31 is located at one end of the first frame section 111 near the second frame section 112. The length detection mechanism 31 includes a lifting assembly and a positioning detection element 312. The lifting assembly is located at the bottom of the first frame section 111 and includes a first baffle 311 and a telescopic component. The first baffle 311 is connected to the telescopic component and can move up and down within the gap between two adjacent transmission rollers 121 under the drive of the telescopic component. The positioning detection element 312 is located on the side of the first baffle 311 near the push plate 131 to detect the distance between the push plate 131 and the first baffle 311. When the telescopic component moves the first baffle 311 along the height direction of the pipe welding equipment (i.e., the height direction of the first frame section 111) and protrudes beyond the conveyor roller 121, and the end of the pipe just abuts against the positioning detection element 312 of the first baffle 311, the positioning detection element 312 detects the distance between the push plate 131 and the first baffle 311, which is the length of the pipe. This contact-type detection method can more accurately detect the length of the pipe, realizing automatic detection of the pipe length in the pipe conveying device, shortening the pipe length detection time, making it more suitable for assembly line welding operations, and improving the welding efficiency of the pipe.

[0043] In the lifting assembly of this embodiment, the telescopic component includes a bracket 313 and a first telescopic cylinder 314. The bracket 313 is fixedly connected to the first frame section 111. The second cylinder body 3141 of the first telescopic cylinder 314 is fixedly connected to the bracket 313. The first telescopic cylinder 314 is provided with a second telescopic rod 3142. The second telescopic rod 3142 is fixedly connected to the first baffle 311. The bracket 313 is provided with a guide groove 3131 extending along the height direction of the pipe conveying device of the welding equipment. The first baffle 311 is at least partially disposed in the guide groove 3131 and can slide along the guide groove 3131 under the drive of the second telescopic rod 3142. In this embodiment, when the second telescopic rod 3142 extends or retracts relative to the second cylinder 3141 along the height direction of the frame, since the first baffle 311 is fixedly connected to the second telescopic rod 3142 and the first baffle 311 is at least partially disposed in the guide groove 3131, the first baffle 311 will also move along the height direction of the frame and slide in the guide groove 3131. The guide groove 3131 can limit the first baffle 311, that is, constrain the movement trajectory of the first baffle 311, and avoid the first baffle 311 from swinging or tilting due to the bias of the first telescopic cylinder 314 or external force interference, thereby improving the accuracy of pipe length detection.

[0044] Preferably, the length detection mechanism 31 further includes a buffer cylinder 315, which is disposed on the side of the first baffle 311 near the push plate 131. The extension and retraction direction of the buffer cylinder 315 is consistent with the length direction of the first frame section 111, and the positioning detection element 312 is disposed on the buffer cylinder 315. The positioning detection element 312, the first telescopic cylinder 314, and the buffer cylinder 315 are all electrically connected to the controller of the pipe welding equipment. The controller controls the buffer cylinder 315 to drive the first baffle 311 to rise within the gap between the two transmission rollers 121. Then, it controls the buffer cylinder 315 on the first baffle 311 to extend. At this time, the length detection mechanism 31 is in a ready-to-detect state. After the push plate 131 pushes the pipe against the first baffle 311, the air pressure damping effect of the buffer cylinder 315 prevents the pipe from impacting the positioning detection element 312 due to excessive inertia. This provides a buffer for the pipe's movement direction, preventing direct rigid collision between the pipe and the positioning detection element 312, thus extending its service life. After detecting the distance between the push plate 131 and the first baffle 311, the positioning detection element 312 sends the result to the controller, which is the length of the pipe.

[0045] Preferably, a detection element is also provided on the first frame section 111. Along the length direction of the first frame section 111, the detection element is located on the side of the length detection mechanism 31 near the push plate 131, and there is a preset distance between the detection element and the length detection mechanism 31. The detection element is electrically connected to the controller of the pipe welding equipment. When the pipe passes the detection element, it triggers a deceleration signal. The detection element sends a deceleration signal to the controller, and the controller controls the pipe to start decelerating until the end of the pipe contacts the positioning detection element 312. This ensures that the pipe has enough distance to complete the deceleration process before approaching the first baffle 311, avoiding excessive impact on the positioning detection element 312 due to excessive inertia.

[0046] Optionally, the positioning detection element 312 in this embodiment includes a magnetic ring inductive switch, which can be either a reed switch type or a Hall element type. With a reed switch type, under the influence of a magnetic field, the two reeds inside the glass tube will attract each other due to magnetization, thus conducting the circuit. After the magnetic field disappears, the reeds return to the open state due to their own elasticity. With a Hall element type, the magnetic field is detected using the Hall effect, and a digital signal is output, offering higher reliability.

[0047] refer to Figure 3 and Figure 7As shown, the pipe welding equipment also includes an outer diameter detection mechanism 32, which is located on the first frame section 111. The outer diameter detection mechanism 32 includes a bidirectional cylinder 321, a first clamping arm 322, a second clamping arm 323, and a displacement detection component 324. The bidirectional cylinder 321 is fixedly connected to the bottom of the first frame section 111. A fifth telescopic rod 3211 and a sixth telescopic rod 3212 are respectively provided at opposite ends of the bidirectional cylinder 321. The first clamping arm 322 is connected to the fifth telescopic rod 3211, and the second clamping arm 323 is connected to the sixth telescopic rod 3212. The first clamping arm 322 and the second clamping arm 323 are located in the gap between two adjacent transmission rollers 121 and extend along the height direction of the first frame section 111. The displacement detection component 324 is located between the first clamping arm 322 and the first frame section 111 or between the second clamping arm 323 and the first frame section 111. The extension direction of the fifth telescopic rod 3211 is the same as that of the sixth telescopic rod 3212, but the extension direction of the fifth telescopic rod 3211 is opposite to that of the sixth telescopic rod 3212. The bidirectional cylinder 321 is electrically connected to the controller. When the push plate 131 pushes the pipe to the middle of the first clamping arm 322 and the second clamping arm 323 and the pipe stops moving, the controller controls the bidirectional cylinder 321 to operate. The fifth telescopic rod 3211 and the sixth telescopic rod 3212 of the bidirectional cylinder 321 extend and retract synchronously, causing the first clamping arm 322 and the second clamping arm 323 to move closer together until they clamp the pipe. When the pipe continues to be conveyed until it completely leaves the first clamping arm 322 and the second clamping arm 323, the controller controls the bidirectional cylinder 321 to operate again, causing the first clamping arm 322 and the second clamping arm 323 to move closer together until they clamp the pipe. After contact 23, the movement stops. At this time, the first clamping arm 322 and the second clamping arm 323 move from the position of clamping the pipe to the position of contacting each other. The displacement of the first clamping arm 322 or the second clamping arm 323 is half the diameter of the pipe. The displacement detection component 324 is electrically connected to the controller. After detecting the displacement of the first clamping arm 322 or the second clamping arm 323, the displacement detection component 324 transmits the data to the controller. The controller calculates the diameter of the pipe based on the signal transmitted by the displacement detection component 324. Based on the diameter of the pipe, the operating frequency of the roller drive motor 1131 on the second frame section 112 can be controlled to keep the conveying speed of different pipes consistent.

[0048] In this embodiment, the fifth telescopic rod 3211 and the sixth telescopic rod 3212 of the bidirectional cylinder 321 move synchronously in opposite directions, driving the first clamping arm 322 and the second clamping arm 323 to symmetrically clamp the pipe, realizing a bidirectional synchronous clamping mechanism. This ensures that the measurement reference point is always located on the pipe axis, improving measurement accuracy. The bidirectional cylinder 321 can achieve rapid reverse extension and retraction between the fifth telescopic rod 3211 and the sixth telescopic rod 3212, making it suitable for high-speed production lines. The opening and closing action between the first clamping arm 322 and the second clamping arm 323 is synchronized and coordinated with the pipe conveying, requiring no manual intervention. When the pipe reaches the detection position, the bidirectional cylinder automatically drives the first clamping arm 322 and the second clamping arm 323 to clamp the pipe to measure its outer diameter, realizing a fully automated detection process and improving pipe production efficiency.

[0049] Specifically, the displacement detection component 324 includes an encoder 3241, a mating gear 3242, and a mating rack 3243. The encoder 3241 is rotatably connected to the first frame section 111. The mating gear 3242 is fixedly connected to the encoder 3241. The mating rack 3243 is fixedly disposed on the first clamping arm 322 or the second clamping arm 323 and extends along the extension and retraction direction of the bidirectional cylinder 321. The mating gear 3242 and the mating rack 3243 are meshed together. During the process of the bidirectional cylinder 321 driving the first clamping arm 322 and the second clamping arm 323 to clamp the pipe, the mating rack 3243 fixed on the first clamping arm 322 or the second clamping arm 323 moves along the extension and retraction direction of the bidirectional cylinder 321 with the first clamping arm 322 or the second clamping arm 323, driving the mating gear 3242 meshing with the mating rack 3243 to rotate. The mating gear 3242 drives the encoder 3241 to rotate, and the encoder 3241 detects its own angle value when the first clamping arm 322 and the second clamping arm 323 clamp the pipe. The encoder 3241 is electrically connected to the controller of the welding equipment and detects angle values. The data is then transmitted to the controller, which has a built-in angle value of the encoder 3241 when the first clamping arm 322 and the second clamping arm 323 are in contact. The controller according to and The difference is used to calculate the angle change value of encoder 3241. Based on the transmission relationship between the mating gear 3242 and the mating rack 3243, the moving distance L of the mating rack 3243 is related to the encoder angle change value. The mathematical relationship is as follows: Where r is the pitch circle radius of the second gear; Because the first clamping arm 322 and the second clamping arm 323 move symmetrically, the displacement of either the first clamping arm 322 or the second clamping arm 323 is half the outer diameter of the pipe. Therefore, the outer diameter D of the pipe is: In this embodiment, the encoder 3241 has high angular resolution, and combined with the precision transmission of the gear and rack, it can achieve high-precision displacement measurement accuracy. The gear and rack transmission has no backlash, eliminating the idle error in traditional mechanical transmissions and ensuring the repeatability and reliability of the measurement results. The gear and rack mechanism has high transmission efficiency and fast response speed, enabling real-time measurement of the outer diameter during the movement of the first clamping arm 322 and the second clamping arm 323, adapting to the online inspection requirements of high-speed production lines. The encoder 3241 has a high data sampling frequency, capable of capturing minute displacement changes of the first clamping arm 322 or the second clamping arm 323, achieving dynamic measurement. Compared to optical or laser measurement methods, this embodiment uses mechanical transmission measurement, which is unaffected by environmental factors such as oil, dust, and light, making it suitable for harsh industrial environments such as welding workshops. The encoder 3241 uses digital signal output, has strong anti-electromagnetic interference capabilities, and stable signal transmission.

[0050] refer to Figures 13 to 17 As shown, the pipe welding equipment also includes a material transfer device, which includes a first material transfer mechanism and a second material transfer mechanism. The second frame section 112 includes a first side 1121 and a second side 1122 opposite to each other. The first material transfer mechanism is disposed on the first side 1121, and the second material transfer mechanism is disposed on the second side 1122. Both the first and second material transfer mechanisms include a material transfer base 41, a material transfer lifting seat 42, and a material carrying component 43. The material transfer base 41 is disposed on the side of the second frame section 112 along the length direction and moves along the length direction of the second frame section 112. The material transfer lifting seat 42 is disposed on the material transfer base 41 and moves along the height direction of the second frame section 112. The material carrying component 43 is disposed on the material transfer lifting seat 42 and can move relative to the material transfer lifting seat 42 along the width direction of the second frame section 112.

[0051] In this embodiment, the material transfer base 41 is disposed on the side of the second frame section 112 along the length direction (opposite sides of the second frame section 112), and can move along the length direction of the second frame section 112. The material transfer lifting seat 42 on the material transfer base 41 can move relative to the material transfer base 41 along the height direction of the second frame section 112. Figure 1 and Figure 2 The material-carrying component 43 on the material-carrying lifting seat 42 can move relative to the material-carrying component 43 along the width direction of the second frame section 112 (in the direction indicated by the middle arrow z). Figure 1 and Figure 2(In the direction indicated by the middle arrow y), both the loading components 43 of the first and second material transfer mechanisms possess three-dimensional motion characteristics. The first and second material transfer mechanisms correspond to the first and second welding mechanisms, respectively. The first material transfer mechanism can transfer the pipes distributed by the first material distribution mechanism to the first welding mechanism for welding, and the second material transfer mechanism can transfer the pipes distributed by the second material distribution mechanism to the second welding mechanism for welding. This achieves dual-station welding on both sides of the frame 11, with the welding stations on both sides not interfering with each other, thus improving the production efficiency of the pipe welding equipment.

[0052] Specifically, in this embodiment, there are two first material transfer mechanisms and two second material transfer mechanisms. The two first material transfer mechanisms are arranged sequentially along the length of the second frame section 112, and the two second material transfer mechanisms are arranged sequentially along the length of the second frame section 112. Therefore, the pipe at the top of the second frame section 112 can be transferred to the welding device by the synchronous three-dimensional movement of the material-carrying components 43 of the two first material transfer mechanisms or the synchronous three-dimensional movement of the material-carrying components 43 of the two second material transfer mechanisms, so as to facilitate the welding work of the welding device.

[0053] Furthermore, both the first and second material transfer mechanisms include a second slide rail 44 and a driving component 45. The second slide rail 44 is located on the side of the second frame section 112 along its length direction. The second slide rail 44 extends along the length direction of the second frame section 112. A second slider (not shown in the figure) is provided on the material transfer base 41. The second slider is slidably disposed on the second slide rail 44. The driving component 45 is drivenly connected to the material transfer base 41 to drive the material transfer base 41 to slide along the length direction of the second slide rail 44. The fact that the second slide rail 44 extends along the length direction of the second frame section 112 indicates that the length direction of the second slide rail 44 is the same as the length direction of the second frame section 112 (both are...). Figure 1 , Figure 13 and Figure 14 (The direction indicated by the middle arrow x). Through the slidable connection between the second slider and the second slide rail 44, the driving component 45 drives the transfer base 41 to move along the length direction of the second slide rail 44, realizing the movement of the transfer base in the x direction. The second slide rail 44, in conjunction with the second slider, can reduce the deviation of the transfer base 41 in the x direction.

[0054] Preferably, a second rack 441 is provided on the second slide rail 44, and a second gear (not shown in the figure) meshing with the second rack 441 is provided on the second slider. The driving component 45 includes a transfer motor 451, and the second gear is sleeved on the output shaft of the transfer motor 451. The meshing transmission between the second gear and the second rack 441 can ensure the accuracy and stability of the transfer base 41 moving along the length direction of the second frame section 112, and reduce shaking or offset during the sliding process. The driving component 45 uses a transfer motor 451, which drives the transmission between the second gear and the second rack 441, resulting in high transmission efficiency and low energy loss.

[0055] Preferably, the driving component 45 includes a transfer cylinder 452, which includes a third cylinder body 4521 and a third telescopic rod 4522. The third cylinder body 4521 is fixedly connected to the end of the second slide rail 44, and the third telescopic rod 4522 is fixedly connected to the transfer base 41. Directly using the linear telescopic motion of the transfer cylinder 452 to drive the transfer base 41 simplifies the structure of the pipe transfer and welding device. Compared to the transfer motor 451, the transfer cylinder 452 has lower cost, longer service life, and is easier to maintain. The driving components 45 of the two first transfer mechanisms or the two second transfer mechanisms can all use transfer motors 451, all use transfer cylinders 452, or both can be used simultaneously. Figure 14 The diagram shows the case where both a transfer motor 451 and a transfer cylinder 452 are used, wherein the drive component 45 of the first or second transfer mechanism near the end of the second slide rail 44 is a transfer cylinder.

[0056] Furthermore, a third slide rail 411 extending along the height direction of the transfer base 41 is provided on the transfer base 41, and a lifting rack (not shown in the figure) extending along the length direction of the third slide rail 411 is provided on the third slide rail 411. A third slider 421, a lifting motor 422 and a lifting gear (not shown in the figure) are provided on the transfer lifting seat 42. The third slider 421 is slidably disposed on the third slide rail 411. The lifting motor 422 is driven to drive the lifting gear to rotate. The lifting gear and the lifting rack are meshed together.

[0057] In this embodiment, the meshing transmission of the lifting gear and the lifting rack ensures the precision of the lifting movement of the transfer lifting seat 42, improving the accuracy of pipe docking. The lifting rack is mounted on the third slide rail 411, providing stronger resistance to lateral forces and reducing deformation under heavy loads. The transfer lifting seats 42 of the two first transfer mechanisms or the two transfer lifting mechanisms can be synchronously controlled by the controller to achieve parallel lifting of the pipes, avoiding tilting or shaking of the transfer lifting seats 42 during the transfer process.

[0058] Specifically, the material-carrying component 43 includes a telescopic arm 431, a material-carrying groove 4311 is provided on the telescopic arm 431, and a second telescopic cylinder 432 is provided inside the telescopic arm 431. The second telescopic cylinder 432 includes a fourth cylinder body 4321 and a fourth telescopic rod 4322. The fourth telescopic rod 4322 extends along the width direction of the second frame section 112. The fourth cylinder body 4321 is fixedly connected to the telescopic arm 431, and the end of the fourth telescopic rod 4322 away from the fourth cylinder body 4321 is fixedly connected to the material transfer lifting seat 42.

[0059] In this embodiment, the second telescopic cylinder 432 is located inside the telescopic arm 431, which reduces the lateral space occupied compared to an external drive mechanism, making the device structure more compact and optimizing the overall structural volume. The telescopic arm 431 can move along the length, width, and height of the second frame section 112, enabling rapid switching of the pipe between different workstations and shortening the pipe transfer path. The material-carrying groove 4311 on the telescopic arm 431 is used to support and limit the pipe, preventing it from rolling or slipping, thus facilitating the transfer of the pipe to the predetermined position of the welding device for welding.

[0060] Furthermore, a receiving guide component 412 is provided on the material transfer base 41. The receiving guide component 412 includes a guide block 4121 and a second baffle 4122. The guide block 4121 is fixedly installed on the top of the material transfer base 41, and the guide block 4121 is provided with a guide slope 4121-a.

[0061] Specifically, along the length of the second frame section 112, material transfer transition supports 114 are provided on opposite sides of the top of the second frame section 112. The top of the material transfer transition support 114 is provided with a material transfer transition surface 1141. Along the width of the second frame section 112, the guide slope 4121-a protrudes at least partially from the material transfer transition surface 1141. The projection of the material transfer transition surface 1141 in the height direction of the second frame section 112 and the projection of the guide slope 4121-a in the height direction of the second frame section 112 at least partially overlap. The second baffle 4122 is provided at the bottom end of the guide slope 4121-a. When the transfer base 41 moves along the length of the second frame section 112 to the pipe position, the pipe rolls along the transfer transition surface 1141 to the guide slope 4121-a at the top of the guide block 4121 of the receiving guide component 412. Under the action of gravity, it continues to roll along the guide slope 4121-a and finally stops at the bottom of the guide slope 4121-a under the obstruction of the second baffle 4122.

[0062] In this embodiment, after the first or second material distribution mechanism delivers the pipe from the top of the material conveying mechanism 12 to the transfer transition surface 1141 of the transfer transition bracket 114, the pipe slides from the transfer transition surface 1141 to the guide slope of the guide block 4121 due to inertia. Through the guide slope 4121-a, the pipe can continue to roll on the guide wire slope 4121-a using its own gravity, eliminating the need for an additional power source and reducing the energy consumption and complexity of the pipe transfer and welding device. The guide slope 4121-a guides the pipe to automatically slide to a predetermined position, avoiding the need for a robotic arm to grasp or manual handling, thus improving material receiving efficiency. The second baffle 4122 can confine the pipe to the bottom of the guide slope 4121-a, facilitating the transfer of the pipe by the telescopic arm 431 through the loading groove 4311. Along the width direction of the second frame section 112, the guide slope 4121-a protrudes at least partially from the transfer transition surface 1141, and the guide slope 4121-a and the transfer transition surface 1141 partially overlap in the height direction of the second frame section 112. This ensures that the pipe can fall onto the guide slope 4121-a after rolling down from the transfer transition surface 1141, avoiding pipe jamming and improving the reliability of pipe transfer.

[0063] Understandably, when the pipe rolls along the guide ramp 4121-a and is stopped by the second baffle 4122, the telescopic arm 431 moves in the y and z directions to make the pipe just inside the loading groove 4311 of the telescopic arm 431 of the two first material transfer mechanisms or the loading groove 4311 of the telescopic arm 431 of the two second material transfer mechanisms.

[0064] In this embodiment, the material transfer motor 451, material transfer cylinder 452, lifting motor 422, and second telescopic cylinder 432 are all electrically connected to the controller. The controller controls the operation of the material transfer motor 451, material transfer cylinder 452, lifting motor 422, and second telescopic cylinder 432 according to the length of the pipe, so that the telescopic arm 431 can move in the x, y, and z directions. This allows the telescopic arm 431 to move to a predetermined position, smoothly receiving the pipe after it has been divided and moving it to the corresponding first or second welding mechanism for welding. This improves the mobility of the device, allows for accurate control of the pipe's position, and enhances welding reliability. The first and second welding mechanisms enable multi-station welding during pipe welding, improving welding efficiency.

[0065] refer to Figures 18 to 22As shown, in this embodiment, both the first and second welding mechanisms include a displacement slide rail 51, a displacement component 52, and a welding component 53. Along the width direction of the second frame section 112, the displacement slide rail 51 is located on the side of the first material transfer mechanism away from the second frame section 112 and extends along the length direction of the second frame section 112. The displacement component 52 is mounted on the displacement slide rail 51 and can move along the length direction of the displacement slide rail 51. The welding component 53 is located at the end of the displacement slide rail 51. The displacement component 52 can control the position of the pipe along the length direction of the second frame section 112. Welding of the pipe can be performed through the first or second welding mechanism at the end of the displacement component 52, improving the efficiency of pipe welding. Furthermore, the displacement assembly 52 includes a first displacement machine 521 and a second displacement machine 522. Along the length of the displacement slide rail 51, the first displacement machine 521 and the second displacement machine 522 are sequentially disposed on the displacement slide rail 51 and can both move along the length of the displacement slide rail 51. One of the first displacement machine 521 and the second displacement machine 522 is provided with a rotatable first tip component 523 that can move along the length of the displacement slide rail 51, and the other is provided with a rotatable second tip component 524. The welding assembly 53 includes a first welding robotic arm 531 and a second welding robotic arm 532. The first welding robotic arm 531 is disposed at the first end of the displacement slide rail 51, and the second welding robotic arm 532 is disposed at the second end opposite to the first end of the displacement slide rail 51.

[0066] Specifically, in this embodiment, the first positioner 521, the second positioner 522, the first welding robotic arm 531, and the second welding robotic arm 532 are all electrically connected to the controller. After the telescopic arm 431 carries the pipe through the material loading groove 4311, the controller controls the telescopic arm 431 to move to the top of the positioning slide rail 51. Then, the controller controls the first positioner 521 and the second positioner 522 to move along the length of the positioning slide rail 51 to a predetermined position. The first tip component 523 of the first positioner 521 and the second positioner 522... The second tip component 524 on the 2nd positioner holds both ends of the pipe, controlling the first welding robotic arm 531 and the second welding robotic arm 532 to move to the welding point to weld the pipe. During the welding process, the controller can control the first tip component 523 of the first positioner 521 and the second tip component 524 of the second positioner 522 to rotate synchronously, so as to drive the pipe to rotate. After the pipe rotates one revolution, the circumferential welding of the welding point of the pipe can be completed, which improves the welding effect and welding efficiency, and improves the stability of the welded pipe.

[0067] In this embodiment, the first tip component 523 and the second tip component 524 are aligned with the pipe axis and a preload is applied to fix the pipe, facilitating welding. The synchronous rotation of the first tip component 523 and the second tip component 524 drives the pipe to rotate. Combined with the first welding robotic arm 531 and the second welding robotic arm 532, circumferential welding of the pipe can be performed, ensuring consistent weld depth and width, and reducing welding defects. By controlling the first positioner 521 and the second positioner 522 to move along the positioner slide rail 51, the distance between the first tip component 523 and the second tip component 524 can be adjusted to accommodate welding requirements for pipes of different lengths, reducing tooling changeover time and improving welding efficiency.

[0068] Furthermore, in this embodiment, the first tip component 523 includes a cone 5231, a spindle (not shown in the figure), a first drive member (not shown in the figure), and a second drive member (not shown in the figure). The cone 5231 is fixedly connected to the end of the spindle. The first drive member is driven connected to the spindle to drive the spindle to rotate around its own axis. The second drive member is driven connected to the spindle to drive the spindle to move along its own axis.

[0069] In this embodiment, the tapered contact surface between the cone head 5231 and the pipe end face can automatically correct the axial deviation of the pipe, ensuring that the rotation center of the pipe coincides with the spindle axis and improving welding concentricity. The second drive component independently controls the spindle to move along its own axial direction, and can adjust the clamping force of the first center component 523 and the second center component 524 on the pipe according to the pipe material and specifications, avoiding the problem of deformation of thin-walled pipes or insufficient clamping of thick-walled pipes. During the welding process, the circumferential movement of the cone head 5231 can achieve axial fine-tuning compensation of the pipe to adapt to pipe welding deformation and other situations, maintaining a uniform weld gap.

[0070] Preferably, along the direction from the cone head 5231 toward the second tip component 524, the circumferential surface of the cone head 5231 is sequentially provided with a first conical ramp 5231-a and a second conical ramp 5231-b. The angle of the first conical ramp 5231-a is 40 to 50 degrees, and the angle of the second conical ramp 5231-b is 25 to 35 degrees. The circumferential surface of the second conical ramp 5231-b is provided with multiple inclined grooves 5231-c spaced apart circumferentially. By providing the first conical ramp 5231-a on the circumferential surface of the cone head 5231 with an inclination angle of 40 to 50 degrees, the length of the cone head 5231 can be reduced, preventing the pipe from easily getting caught during backward unloading and hindering smooth unloading. By providing a second conical ramp 5231-b on the circumferential surface of the cone 5231 with an inclination angle of 25 to 35 degrees, the radial force on the ramp of the large-diameter pipe can be reduced, making it easier for the pipe to be tightened on the ramp. By providing multiple inclined grooves 5231-c at circumferential intervals on the circumferential surface of the second conical ramp 5231-b, the friction between the pipe and the first and second tip components 523 and 524 can be increased when the pipe rotates, preventing the pipe from slipping and causing uneven welding.

[0071] Specifically, both the first and second welding mechanisms include a finished product box 54. Along the height direction of the welding device, the finished product box 54 is located on the side of the displacement slide rail 51 away from the displacement slide rail 51 and extends along the length direction of the displacement slide rail 51. Along the height direction of the second frame section 112, finished product guide ramps 55 are provided on the side of the first positioner 521 near the second positioner 522 and on the side of the second positioner 522 near the first positioner 521. The finished product guide ramp 55 on the first positioner 521 is located at the bottom of the first top member 523, and the finished product guide ramp 55 on the second positioner 522 is located at the bottom of the second top member 524. After the pipe welding is completed, the first top member 523 and the second top member 524 release the pipe. Under the action of gravity, the pipe automatically slides down the finished product guide ramp 55 into the finished product box 54 without manual intervention, achieving automatic unloading after welding and improving the automation level and production efficiency of the production process.

[0072] Preferably, along the length of the displacement slide rail 51, a welding machine 56, a wire hopper 57, a torch cleaning station 58, and a dust collector 59 are arranged on the side of the first welding robotic arm 531 away from the second welding robotic arm 532, and the same components are arranged sequentially on the side of the second welding robotic arm 532 away from the first welding robotic arm 531. The welding machine 56 provides the energy required for welding (such as arc heat), causing localized melting of the pipe to be welded, achieving interatomic bonding and completing the welding process. The wire hopper 57 stores the welding wire required for the welding process. The torch cleaning station 58 automatically cleans the welding torch nozzles and electrodes of the welding robotic arms (first welding robotic arm 531 and second welding robotic arm 532). The torch cleaning station 58 periodically cleans the welding torch through mechanical scraping, high-pressure gas purging, etc., to ensure the stability of welding quality. The dust collector 59 collects and treats harmful substances such as metal oxide dust and nitrogen oxides generated during the welding process.

[0073] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0074] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0075] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A pipe welding device, characterized in that, include: A material conveying device, comprising a frame (11), a conveying mechanism (12) and a pushing mechanism (13), wherein the conveying mechanism (12) is rotatably disposed on the top of the frame (11), and the pushing mechanism (13) is disposed on the frame (11) and can move along the length of the frame (11); The material distribution device is located at the bottom of the frame (11). The material distribution device includes a first material distribution mechanism and a second material distribution mechanism. Both the first material distribution mechanism and the second material distribution mechanism include a material distribution plate (21) and a lifting drive assembly (22). The lifting drive assembly (22) is driven to connect with the material distribution plate (21) to drive the material distribution plate (21) to rise and fall along the height direction of the frame (11). The top of the material distribution plate (21) is provided with a material distribution slope (211). The inclination directions of the material distribution slope (211) on the material distribution plate (21) of the first material distribution mechanism and the material distribution plate (21) of the second material distribution mechanism are opposite. A welding apparatus, comprising a first welding mechanism and a second welding mechanism, wherein the first welding mechanism corresponds to the first material distribution mechanism for welding the pipes distributed by the first material distribution mechanism, and the second welding mechanism corresponds to the second material distribution mechanism for welding the pipes distributed by the second material distribution mechanism.

2. The pipe welding equipment according to claim 1, characterized in that, The material conveying mechanism (12) includes a plurality of transmission rollers (121) spaced apart along the length of the frame (11). Each transmission roller (121) is located at the top of the frame (11) and can rotate relative to the frame (11). The frame (11) is provided with a first frame section (111) and a second frame section (112) in sequence along the length. The material pushing mechanism (13) includes a pushing component and a push plate (131). The pushing component is located at the first frame section (111) and can move along the length of the first frame section (111). The push plate (131) is located at the top of the transmission rollers (121). The push plate (131) is connected to the pushing component to push the pipe on the transmission rollers (121) along the length of the first frame section (111) under the action of the pushing component.

3. The pipe welding equipment according to claim 2, characterized in that, The lifting drive assembly (22) includes a first connecting rod (221), a second connecting rod (222), a linkage rod (223), and a drive member (224). The first end of the first connecting rod (221) is hinged to the bottom of the material distribution plate (21). The second end of the first connecting rod (221) opposite to the first end is sleeved on the linkage rod (223). The first end of the second connecting rod (222) is sleeved on the linkage rod (223). The second end of the second connecting rod (222) opposite to the first end is drivenly connected to the drive member (224). The drive member (224) is fixedly connected to the second frame section (112).

4. The pipe welding equipment according to claim 3, characterized in that, Both the first and second material distribution mechanisms include multiple material distribution plates (21). The multiple material distribution plates (21) are spaced apart along the length of the second frame section (112). Each material distribution plate (21) is located at the bottom of the second frame section (112) and can rise and fall within the gap between two adjacent transmission rollers (121). The first connecting rod (221), the second connecting rod (222), and the material distribution plates (21) are arranged in a one-to-one correspondence. The linkage rod (223) extends along the length of the second frame section (112). Along the extension direction of the linkage rod (223), the first connecting rod (221) and the second connecting rod (222) are arranged in a one-to-one correspondence and are sleeved on the linkage rod (223).

5. The pipe welding equipment according to any one of claims 2 to 4, characterized in that, The material distribution mechanism further includes a fixed base plate (23), which is fixedly disposed on the second frame section (112) and extends along the height direction of the second frame section (112). The material distribution plate (21) is mounted on the fixed base plate (23) through a guide member (24). The material distribution plate (21) is parallel to the fixed base plate (23). The guide member (24) includes a plurality of guide rollers (241). The plurality of guide rollers (241) are rotatably mounted on the fixed base plate (23) and located on both sides of the material distribution plate (21) along the height direction. The side of the material distribution plate (21) can move relative to the guide rollers (241).

6. The pipe welding equipment according to claim 2, characterized in that, The pipe welding equipment further includes a length detection mechanism (31), which is located at one end of the first frame section (111) near the second frame section (112). The length detection mechanism (31) includes: A lifting assembly is disposed at the bottom of the first frame section (111). The lifting assembly includes a first baffle (311) and a telescopic component. The first baffle (311) is connected to the telescopic component and can be raised and lowered within the gap between two adjacent transmission rollers (121) under the drive of the telescopic component. A positioning detection element (312) is disposed on the side of the first baffle (311) near the push plate (131) to detect the distance between the push plate (131) and the first baffle (311).

7. The pipe welding equipment according to claim 2, characterized in that, The pipe welding equipment also includes an outer diameter detection mechanism (32), which is located on the first frame section (111). The outer diameter detection mechanism (32) includes a two-way cylinder (321), a first clamping arm (322), a second clamping arm (323), and a displacement detection component (324). The two-way cylinder (321) is fixedly connected to the bottom of the first frame section (111). A fifth telescopic rod (3211) and a sixth telescopic rod (3212) are respectively provided at opposite ends of the two-way cylinder (321). The first clamping arm (322) is connected to the fifth telescopic rod (3211), the second clamping arm (323) is connected to the sixth telescopic rod (3212), the first clamping arm (322) and the second clamping arm (323) are located in the gap between two adjacent transmission rollers (121) and extend along the height direction of the first frame section (111), and the displacement detection component (324) is disposed between the first clamping arm (322) and the first frame section (111) or between the second clamping arm (323) and the first frame section (111).

8. The pipe welding equipment according to claim 2, characterized in that, The pipe welding equipment also includes a material transfer device, which includes a first material transfer mechanism and a second material transfer mechanism. The second frame section (112) includes a first side (1121) and a second side (1122) opposite to each other. The first material transfer mechanism is disposed on the first side (1121) and the second material transfer mechanism is disposed on the second side (1122). Both the first and second material transfer mechanisms include a material transfer base (41), a material transfer lifting seat (42), and a material loading component (43). The material transfer base (41) is disposed on the side of the second frame section (112) along the length direction and moves along the length direction of the second frame section (112). The material transfer lifting seat (42) is disposed on the material transfer base (41) and moves along the height direction of the second frame section (112). The material loading component (43) is disposed on the material transfer lifting seat (42) and can move relative to the material transfer lifting seat (42) along the width direction of the second frame section (112).

9. The pipe welding equipment according to claim 8, characterized in that, Both the first welding mechanism and the second welding mechanism include a displacement slide rail (51), a displacement component (52), and a welding component (53). Along the width direction of the second frame section (112), the displacement slide rail (51) is disposed on the side of the first material transfer mechanism away from the second frame section (112) and extends along the length direction of the second frame section (112). The displacement component (52) is disposed on the displacement slide rail (51) and can move along the length direction of the displacement slide rail (51). The welding component (53) is disposed at the end of the displacement slide rail (51).

10. The pipe welding equipment according to claim 9, characterized in that, The displacement assembly includes a first displacement machine (521) and a second displacement machine (522). Along the length direction of the displacement slide rail (51), the first displacement machine (521) and the second displacement machine (522) are sequentially arranged on the displacement slide rail (51) and can both move along the length direction of the displacement slide rail (51). One of the first displacement machine (521) and the second displacement machine (522) is provided with a first tip component (523) that can rotate and move along the length direction of the displacement slide rail (51), and the other of the two is provided with a second tip component (524) that can rotate. The welding assembly (53) includes a first welding robotic arm (531) and a second welding robotic arm (532). The first welding robotic arm (531) is disposed at the first end of the displacement slide rail (51), and the second welding robotic arm (532) is disposed at the second end opposite to the first end of the displacement slide rail (51).

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