Automatic welding device and welding method for cross arm of steel pipe pole

Abstract

The invention discloses an automatic welding device and welding method for a steel pipe pole cross arm, and belongs to the technical field of welding devices.The automatic welding device and welding method for the steel pipe pole cross arm comprise a mounting base, and a stabilizing plate is fixedly mounted at the upper end of the rear side of the mounting base; steel workpieces needing to be welded and welding workpieces needing to be welded can be automatically combined and spliced, then the welding workpieces are limited through the special stable clamping piece, automatic welding operation can be conducted without manual assistance, flaw detection can be conducted on the welded workpieces through the pressure sensing device and the airflow device, whether the workpieces are inclined or not is detected, and the welding efficiency is improved. Whether the problems of weld penetration and the like which affect the overall strength occur or not are solved, the manual detection cost is reduced, through the arrangement of the structure of the turnover device, after defective workpieces are detected, the defective workpieces can be rapidly recycled, subsequent manual classification operation is not needed, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding devices, and more specifically to an automatic welding device and a welding method for a steel pipe cross arm. Background Art

[0002] In the construction of power projects, steel tube pole cross arms are key components for supporting power transmission lines, and their welding quality is directly related to the safe and stable operation of power transmission lines. With the development of the power industry, the demand for steel tube pole cross arms is increasing, and the traditional manual welding method can no longer meet the requirements of production efficiency and quality. Therefore, automated welding devices have been widely used in the production of steel tube pole cross arms.

[0003] A Chinese patent discloses a low-voltage four-wire cross-arm welding tool and an automated welding device and method (authorization announcement number CN116460507B), which is a low-voltage four-wire cross-arm welding tool and an automated welding device and method. In view of the problem that there are many operation steps in the installation and removal of angle steel in the prior art, which affects the installation and removal efficiency and requires the staff to rotate the tool while welding, the following scheme is proposed, which includes: a tool and an angle steel, the bottom of the tool is fixedly connected to a bottom plate, and the bottom of the bottom plate is fixedly embedded with a plurality of magnets; a length limiting structure is arranged on the tool It is used to clamp the angle steel in the center on the top of the tooling to facilitate subsequent welding. In the present invention, the length limiting structure and the clamping structure can be driven separately by rotating the rotating shaft, so that the angle steel can be placed in the center and can also be clamped. The first rack and the second rack cooperate to automatically complete the clamping and disassembly of the angle steel. In addition, the welding structure can automatically weld on the four sides of the M-shaped pad to improve welding efficiency. However, the device still requires manual assistance in welding operations, and cannot reach the level of automation, so the efficiency is low. Secondly, deformation and skewing are more common in automated welding. During the welding process, due to the uneven heating of the welding heat source, thermal stress and temperature gradient will be generated in the weld and the surrounding areas. When the welding is completed, these areas cool and shrink inconsistently, which causes the cross arm of the steel pipe rod to deform.

[0004] During welding, due to the uneven internal stress of the workpiece material, it is easy to cause the problem of weld penetration during the welding process. The weld penetration defect will seriously weaken the bearing capacity of the steel pipe pole crossarm, making it unable to meet the design requirements, and greatly threatening the safe operation of the transmission line.

[0005] To ensure product quality, currently, the method of manual inspection is usually adopted to check each welded steel pipe pole cross arm one by one. However, this method is not only inefficient, but also difficult to ensure the accuracy and consistency of the inspection results due to the subjectivity and fatigue of manual inspection. For some minor deformation skewness and welding penetration defects, manual inspection may not be able to detect them in time, resulting in unqualified products flowing into the market and posing potential safety hazards to power projects. Therefore, it is of great practical significance to develop an automatic welding device for steel pipe pole cross arms that can effectively solve the problems of welding deformation skewness and welding penetration and can efficiently and accurately detect welding quality. Summary of the Invention

[0006] The purpose of the present invention is to provide an automatic welding device and welding method for steel pipe pole cross arms to solve the problems raised in the above background technology.

[0007] An automatic welding device and welding method for steel pipe pole cross arms, including a mounting base, a stabilizing plate is fixedly installed at the upper rear end of the mounting base, a support seat is fixedly installed in the middle of the upper end of the stabilizing plate, a support member is arranged on the upper side of the middle of the stabilizing plate, a lifting platform is arranged at the rear side of the inner cavity of the support member, a welding device is arranged at the upper end of the lifting platform, a stable clamping member is fixedly installed at the lower end of the lifting platform, a linkage toothed plate is fixedly installed at the side of the lifting platform, a main control box is fixedly installed at the upper end of the stabilizing plate on one side of the support member, and a main control module is arranged inside the main control box; A clamping motor is arranged at the side of the main control box, an elastic fixing member is arranged at the side of the clamping motor, a flipping device is arranged in the middle of the stabilizing plate, a pressure sensing device is arranged on the upper side of the support member where the flipping device is located, a fixed air guiding member is fixedly installed at the front side of the stabilizing plate where the flipping groove is located, a pair of electric air outlets are arranged at the front side of the fixed air guiding member, and an air flow device is arranged at the rear side of the stabilizing plate where the flipping groove is located; An input end of the main control module is provided with a synchronization module, and the synchronization module is connected to a workpiece transmission module and an assembly transmission module.

[0008] Furthermore, a processing table is fixedly installed in the middle of the upper end of the mounting base, a connecting head is fixedly installed at the front side of the support member, a protective gas tank is fixedly installed at the upper end of the stabilizing plate on one side of the support member, reinforcing ribs are fixedly installed at both sides of the lower end of the stabilizing plate, and a support platform is fixedly installed in the middle of the lower side of the stabilizing plate.

[0009] By adopting the above technical solution, the protective gas tank can provide inert gas for the welding process and the defect inspection process, thereby effectively protecting the welded part, making the solder joint more stable and reducing oxidation.

[0010] Further, one side of the upper end of the stabilizing plate is fixedly installed with a feeding member, and the other side of the upper end of the stabilizing plate is fixedly installed with a discharging member. A feeding interface is fixedly installed on the side of the feeding member, and a discharging interface is fixedly installed on the side of the discharging member. A pair of auxiliary pulleys are fixedly installed inside the discharging interface of the feeding interface. Electric rollers are fixedly installed above the inner sides of the feeding member and the discharging member. "L"-shaped slots are formed in the middle of the auxiliary pulley and the feeding member.

[0011] By adopting the above technical solution, when the steel workpiece can be fed into the position of the feeding interface, then the steel workpiece will be driven by the upper electric roller to move sideways. At this time, with the continuous feeding of the steel workpiece, multiple steel workpieces will be continuously pushed and then automatically welded by the machine.

[0012] Further, the welding device includes a lifting connecting plate fixedly installed at the upper end of the lifting table, and a pair of electric control welding guns are arranged at the lower end of the lifting connecting plate.

[0013] By adopting the above technical solution, the electric control welding gun can be controlled to move back and forth through the lifting connecting plate, so as to complete the welding operation on the welding workpiece.

[0014] Further, a lifting member is fixedly installed on the middle side of the supporting member. A lifting motor is fixedly installed in the middle of the lifting member. A feeding motor is fixedly installed below the lifting motor in the lifting member. The output end of the feeding motor is meshed and connected with a linkage tooth plate. A transmission belt is fixedly installed at the lower end of the inner cavity of the supporting member. A limiting member is fixedly installed above the transmission belt in the supporting member. The feeding motor controls the transmission belt to rotate.

[0015] By adopting the above technical solution, the transmission belt can drive the welding workpiece to move horizontally, and the limiting member can prevent the welding workpiece from shifting, so as to realize automatic feeding of the welding workpiece.

[0016] Further, a recycling fan is fixedly installed at the rear side of the inner cavity of the supporting member, and a square slot is formed in the position of the supporting member where the welding device is located.

[0017] By adopting the above technical solution, when the welding workpiece moves to the position of the welding device on the transmission belt, it will fall on the upper side of the steel workpiece from the position of the square slot formed in the position of the supporting member where the welding device is located, thus facilitating subsequent automatic welding processing.

[0018] Further, the flipping device includes a rotating motor fixedly installed in the middle of the stabilizing plate, and a flipping member is fixedly installed at the output end of the rotating motor.

[0019] By adopting the above technical solution, when a leakage or warping occurs in the welding workpiece inspection, the rotating motor can drive the flipping member to flip, so that the steel workpiece can fall off.

[0020] Further, an electric partition is fixedly installed on one side of the supporting member and the discharging member. A flipping groove is formed on the side of the stabilizing plate located at the flipping device. A waste material groove is fixedly installed on the lower side of the stabilizing plate located at the flipping device. A limiting groove is formed on the front side of the stabilizing plate located at the supporting seat.

[0021] By adopting the above technical solution, the unqualified steel workpieces after welding will fall into the waste material groove, which is convenient for subsequent recycling and processing and improves the qualified rate. When the steel workpiece moves horizontally above the feeding member, the limiting groove can limit and guide the side of the steel workpiece to prevent the steel workpiece from skewing during the horizontal movement.

[0022] Further, the pressure sensing device includes a limiting plate rotatably installed at the lower end of the supporting member. A contact spring is fixedly installed at the upper end of the limiting plate. A pressure sensor is arranged at the upper end of the limiting plate.

[0023] By adopting the above technical solution, when the welding workpiece warps or skews during welding, the welding workpiece will apply a horizontal force to the lower end of the limiting plate, so that the upper end of the limiting plate squeezes the contact spring until the pressure sensor arranged at the upper end of the limiting plate is triggered.

[0024] Further, the air flow device includes an electric push rod fixedly installed at the upper end of the stabilizing plate. An auxiliary air guiding member is fixedly installed on the front side of the electric push rod. An air pressure sensing head is fixedly installed in the middle of the auxiliary air guiding member.

[0025] By adopting the above technical solution, the electric push rod can push the auxiliary air guiding member forward until the auxiliary air guiding member and the fixed air guiding member seal and clamp the two ends of the welding workpiece. Then, an inert gas is filled between the auxiliary air guiding member and the fixed air guiding member through the electric air outlet, so that the welding workpiece can be detected.

[0026] Further, it includes the following steps; Step 1 Connect the feeding device of the steel workpiece and the feeding device of the welding workpiece to the feeding interface and the connector respectively; Step 2 Through the synchronization module of the main control module inside the main control box, the conveying speeds of the workpiece transmission module and the splicing part transmission module for the steel workpiece and the welding workpiece can be controlled; Step 3 The steel workpiece will move to the lower part of the welding device along the flipping member. At the same time, the welding workpiece falls on the upper side of the steel workpiece through the conveyor belt. Then, the steel workpiece and the welding workpiece are spliced and welded through the welding device; After the workpiece is welded in Step 4, the finished workpiece is pushed by the workpiece pressure on the front side and is detected by a pressure sensing device and an air flow device respectively. If there are defects, the flipping device is activated to recycle the defective parts. If there are no defects, the workpiece is discharged normally.

[0027] Compared with the prior art, the advantages of the present invention are as follows: 1. In the present invention, by providing a structure of a support member and a stabilizing plate, the steel workpieces to be welded and the welding workpieces can be automatically assembled, and then the welding workpieces are limited by a special clamping member, and automatic welding operations can be carried out without manual assistance.

[0028] 2. In the present invention, by providing a pressure sensing device and an air flow device, the welded workpieces can be flaw detected to check whether the workpieces are skewed or whether problems such as welding penetration that affect the overall strength occur, reducing the cost of manual inspection.

[0029] 3. In the present invention, by providing a structure of a flipping device, when defective workpieces are detected, the defective workpieces can be quickly recycled, and subsequent manual sorting operations are not required, improving production efficiency. Description of the Drawings

[0030] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is of the present invention Figure 1 The enlarged view of the structure at A in; Figure 3 is a schematic diagram of the structure of the processing table of the present invention; Figure 4 is of the present invention Figure 3 The schematic diagram of the structure at B in; Figure 5 is a cross-sectional view of the structure of the stabilizing plate of the present invention; Figure 6 is of the present invention Figure 5 The schematic diagram of the structure at C in; Figure 7 is of the present invention Figure 5 The schematic diagram of the structure at D in; Figure 8 is a schematic diagram of the structure of the lifting table of the present invention; Figure 9 is a schematic diagram of the structure of the transmission belt of the present invention; Figure 10 is a schematic diagram of the structure of the waste slot of the present invention; Figure 11 is a schematic diagram of the structure of the fixed air guiding member of the present invention; Figure 12 is a system structure block diagram of the present invention.

[0031] Description of reference numerals in the figure: 1. Steel workpiece; 2. Inlet part; 201. Inlet interface; 202. Auxiliary pulley; 3. Stabilizing plate; 301. Reinforcing rib; 4. Installation base; 5. Processing table; 6. Main control box; 7. Lifting part; 8. Discharge part; 801. Discharge interface; 9. Support part; 901. Limiting part; 10. Connector; 11. Lifting motor; 1101. Feeding motor; 1102. Transmission belt; 12. Protection gas tank; 13. Clamping motor; 14. Elastic fixing part; 15. Support table; 16. Electric roller; 17. Lifting connecting plate; 18. Electric control welding gun; 19. Welding workpiece; 20. Lifting table; 2001. Linkage tooth plate; 21. Stable clamping part; 22. Recycling fan; 23. Electric partition; 24. Rotating motor; 25. Flipping part; 26. Scrap slot; 27. Contact spring; 28. Limiting plate; 29. Support seat; 30. Limiting groove; 31. Fixed air guiding part; 32. Electric air outlet; 33. Flipping groove; 34. Auxiliary air guiding part; 35. Electric push rod; 36. Wind pressure sensor head. Detailed implementation mode

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] As Figures 1-12 shown, the embodiment of the present invention provides: including an installation base 4, a stabilizing plate 3 is fixedly installed at the upper end of the rear side of the installation base 4, a support seat 29 is fixedly installed in the middle of the upper end of the stabilizing plate 3, a support part 9 is arranged on the upper side of the middle of the stabilizing plate 3, a lifting table 20 is arranged at the rear side of the inner cavity of the support part 9, a welding device is arranged at the upper end of the lifting table 20, a stable clamping part 21 is fixedly installed at the lower end of the lifting table 20, a linkage tooth plate 2001 is fixedly installed at the side of the lifting table 20, a main control box 6 is fixedly installed at one side of the support part 9 at the upper end of the stabilizing plate 3, and a main control module is arranged inside the main control box 6; A clamping motor 13 is arranged at the side of the main control box 6, an elastic fixing part 14 is arranged at the side of the clamping motor 13, a flipping device is arranged in the middle of the stabilizing plate 3, a pressure sensing device is arranged at the upper side of the support part 9 where the flipping device is located, a fixed air guiding part 31 is fixedly installed at the front side of the stabilizing plate 3 where the flipping groove 33 is located, a pair of electric air outlets 32 are arranged at the front side of the fixed air guiding part 31, and an air flow device is arranged at the rear side of the stabilizing plate 3 where the flipping groove 33 is located; An input end of the main control module is provided with a synchronization module, and the synchronization module is connected to the workpiece transmission module and the assembly part transmission module; A processing table 5 is fixedly installed in the middle of the upper end of the installation base 4. A connecting head 10 is fixedly installed on the front side of the support member 9. A protective gas tank 12 is fixedly installed on one side of the upper end of the stabilizing plate 3 and is located at the side of the support member 9. Reinforcing ribs 301 are fixedly installed on both sides of the lower end of the stabilizing plate 3. A support table 15 is fixedly installed in the middle of the lower side of the stabilizing plate 3. The protective gas tank 12 can provide inert gas for the welding process and the defect inspection process, thereby effectively protecting the welded part, making the solder joints more stable and reducing oxidation. A feeding member 2 is fixedly installed on one side of the upper end of the stabilizing plate 3, and a discharging member 8 is fixedly installed on the other side of the upper end of the stabilizing plate 3. A feeding interface 201 is fixedly installed on the side of the feeding member 2, and a discharging interface 801 is fixedly installed on the side of the discharging member 8. A pair of auxiliary pulleys 202 are fixedly installed inside the feeding interface 201 and the discharging interface 801. Electric rollers 16 are fixedly installed above the inner sides of the feeding member 2 and the discharging member 8. "L"-shaped slots are formed in the middle of the auxiliary pulley 202 and the feeding member 2. When the steel workpiece 1 can be fed to the position of the feeding interface 201, then the steel workpiece 1 will be driven by the upper electric roller 16 to move sideways. At this time, with the continuous feeding of the steel workpiece 1, multiple steel workpieces 1 will be continuously pushed and then automatically welded by the machine. The welding device includes a lifting connecting plate 17 fixedly installed at the upper end of the lifting table 20. A pair of electric control welding guns 18 are arranged at the lower end of the lifting connecting plate 17. The electric control welding guns 18 can be controlled to move back and forth through the lifting connecting plate 17, so as to complete the welding operation on the welding workpiece 19. A lifting member 7 is fixedly installed on the middle side of the support member 9. A lifting motor 11 is fixedly installed in the middle of the lifting member 7. A feeding motor 1101 is fixedly installed below the lifting motor 11 on the lifting member 7. The output end of the feeding motor 1101 is meshed with a linkage tooth plate 2001. A transmission belt 1102 is fixedly installed at the lower end of the inner cavity of the support member 9. A limiting member 901 is fixedly installed above the transmission belt 1102 on the support member 9. The feeding motor 1101 controls the rotation of the transmission belt 1102, and the transmission belt 1102 can drive the welding workpiece 19 to move horizontally. The welding workpiece 19 can be prevented from shifting through the limiting member 901 to realize automatic feeding of the welding workpiece 19. A recycling fan 22 is fixedly installed at the rear side of the inner cavity of the support member 9. A square slot is formed in the support member 9 at the position of the welding device. When the welding workpiece 19 moves to the position of the welding device on the transmission belt 1102, it will fall on the upper side of the steel workpiece 1 from the position of the square slot formed in the support member 9 at the position of the welding device, thus facilitating subsequent automatic welding processing. The flipping device includes a rotating motor 24 fixedly installed in the middle of the stabilizing plate 3. The output end of the rotating motor 24 is fixedly installed with a flipping member 25. When a leakage or warping is detected in the welded workpiece 19, the flipping member 25 can be driven to flip by the rotating motor 24, so that the steel workpiece 1 can fall off. An electric separating member 23 is fixedly installed on one side of the supporting member 9 close to the discharging member 8. A flipping groove 33 is formed on the side of the stabilizing plate 3 where the flipping device is located. A waste material groove 26 is fixedly installed on the lower side of the stabilizing plate 3 where the flipping device is located. A limiting groove 30 is formed on the front side of the stabilizing plate 3 where the supporting seat 29 is located. The unqualified steel workpiece 1 after welding will fall into the waste material groove 26, which is convenient for subsequent recycling and improves the qualified rate. When the steel workpiece 1 moves horizontally above the feeding member 2, the limiting groove 30 can limit and guide the side of the steel workpiece 1 to prevent the steel workpiece 1 from skewing during the horizontal movement. The pressure sensing device includes a limiting plate 28 rotatably installed at the lower end of the supporting member 9. A contact spring 27 is fixedly installed at the upper end of the limiting plate 28. A pressure sensor is arranged at the upper end of the limiting plate 28. When the welded workpiece 19 warps or skews during welding, the welded workpiece 19 will apply a horizontal force to the lower end of the limiting plate 28, so that the upper end of the limiting plate 28 presses against the contact spring 27 until the pressure sensor arranged at the upper end of the limiting plate 28 is triggered. The air flow device includes an electric push rod 35 fixedly installed at the upper end of the stabilizing plate 3. An auxiliary air guiding member 34 is fixedly installed on the front side of the electric push rod 35. An air pressure sensing head 36 is fixedly installed in the middle of the auxiliary air guiding member 34. The electric push rod 35 can push the auxiliary air guiding member 34 forward until the auxiliary air guiding member 34 and the fixed air guiding member 31 seal and clamp both ends of the welded workpiece 19. Then, an inert gas is filled between the auxiliary air guiding member 34 and the fixed air guiding member 31 through the electric air outlet 32, so that the welded workpiece 19 can be detected. Step 1 Connect the feeding device of the steel workpiece 1 and the feeding device of the welded workpiece 19 to the feeding interface 201 and the connector 10 respectively. Step 2 Through the synchronization module of the main control module inside the main control box 6, the conveying speeds of the workpiece transmission module and the splicing part transmission module for the steel workpiece 1 and the welded workpiece 19 can be controlled. Step 3 The steel workpiece 1 will move to the lower part of the welding device along the flipping member 25. At the same time, the welded workpiece 19 falls on the upper side of the steel workpiece 1 through the conveyor belt 1102. Then, the steel workpiece 1 and the welded workpiece 19 are spliced and welded by the welding device. Step 4 The workpiece finished product after welding is pushed by the workpiece pressure at the front side and is detected by the pressure sensing device and the air flow device respectively. If there are defects, the flipping device is started to recycle the waste parts. If there are no defects, the discharging is carried out normally.

[0034] Working principle of the present invention: The operator connects the feeding device of the steel workpiece 1 and the feeding device of the welding workpiece 19 to the feeding interface 201 and the connector 10 respectively. When the steel workpiece 1 can be fed to the position of the feeding interface 201, then the steel workpiece 1 will be driven by the upper electric roller 16 to move sideways. At this time, with the continuous feeding of the steel workpiece 1, multiple steel workpieces 1 will be continuously pushed and move to the lower side of the electric control welding gun 18. At the same time, since a synchronization module is provided at the input end of the main control module, and the synchronization module is connected to the workpiece transmission module and the assembly transmission module, the feeding motor 1101 drives the transmission belt 1102 to rotate, thereby driving the welding workpiece 19 on the upper side of the transmission belt 1102 towards the direction of the electric control welding gun 18. A recycling fan 22 is fixedly installed at the rear side of the inner cavity of the support member 9. A square groove is provided at the position of the support member 9 where the welding device is located. When the welding workpiece 19 moves on the transmission belt 1102 to the position of the welding device, it will fall onto the upper side of the steel workpiece 1 from the square groove provided at the position of the support member 9 where the welding device is located. When the welding workpiece 19 contacts the steel workpiece 1, the main control box 6 controls the workpiece transmission module and the splicing part transmission module to stop. At this time, the lifting motor 11 starts and drives the lifting table 20 to move downward through the linkage tooth plate 2001, and the stable clamping member 21 will limit and fix the welding workpiece 19. At this time, the welding module starts, and the electric control welding gun 18 will weld the connection position of the welding workpiece 19 and the steel workpiece 1. Automatic welding operation can be carried out without manual participation. After welding is completed, the electric partition 23 pops up upward. At this time, the electric roller 16 continues to push the next steel workpiece 1 to move, and the welded workpiece moves to the upper side of the flipping member 25. Then the electric partition 23 starts to press down, and the electric push rod 35 will push the rotating motor 24 towards the direction of the fixed air guiding member 31 until the auxiliary air guiding member 34 and the fixed air guiding member 31 hermetically clamp both ends of the welding workpiece 19. Then the electric air outlet 32 fills inert gas between the auxiliary air guiding member 34 and the fixed air guiding member 31, and the air pressure induction head 36 can detect the air pressure. When the air pressure shows abnormal fluctuations and is too small, it may mean that there is a welded-through hole at the welded point, that is, the product is unqualified. At this time, the rotating motor 24 can drive the flipping member 25 to flip, so that the steel workpiece 1 can fall into the waste material groove 26 from the flipping groove 33 for subsequent recycling treatment; If the air flow detection is okay, as the finished workpiece continues to move, the welding workpiece 19 will pass through the limiting plate 28. When the welding of the welding workpiece 19 is warped or skewed, the welding workpiece 19 will apply a horizontal force to the lower end of the limiting plate 28, so that the upper end of the limiting plate 28 presses against and contacts the spring 27 until the pressure sensor provided at the upper end of the limiting plate 28 is triggered. The rotating motor 24 can drive the flipping member 25 to flip to recycle the defective workpieces; The lower end of the clamping motor 13 contacts the side of the steel workpiece 1, and an elastic fixing member 14 is arranged on the side of the clamping motor 13. The elastic fixing member 14 can keep the lower end of the clamping motor 13 in contact with the side of the steel workpiece 1 all the time, ensuring that the steel workpiece 1 does not shake during the welding process and the welding quality is more stable.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. An automatic welding device for a steel pipe pole cross arm, comprising a mounting base (4), characterized in that: A stabilizing plate (3) is fixedly installed at the upper rear side of the installation base (4). A support seat (29) is fixedly installed in the middle of the upper end of the stabilizing plate (3). A support member (9) is arranged on the upper side of the middle of the stabilizing plate (3). A lifting platform (20) is arranged at the rear side of the inner cavity of the support member (9). A welding device is arranged at the upper end of the lifting platform (20). A stable clamping member (21) is fixedly installed at the lower end of the lifting platform (20). A linkage tooth plate (2001) is fixedly installed at the side of the lifting platform (20). A main control box (6) is fixedly installed at the upper end of the stabilizing plate (3) on one side of the support member (9). A main control module is arranged inside the main control box (6). A clamping motor (13) is arranged at the side of the main control box (6). An elastic fixing member (14) is arranged at the side of the clamping motor (13). A flipping device is arranged in the middle of the stabilizing plate (3). A pressure sensing device is arranged on the upper side of the support member (9) with respect to the flipping device. A fixed air guiding member (31) is fixedly installed at the front side of the stabilizing plate (3) with respect to the flipping groove (33). A pair of electric air outlets (32) are arranged at the front side of the fixed air guiding member (31). An air flow device is arranged at the rear side of the stabilizing plate (3) with respect to the flipping groove (33). A synchronization module is arranged at the input end of the main control module. The synchronization module is connected to the workpiece transmission module and the assembly part transmission module.

2. The automatic welding device for a steel pipe pole cross arm according to claim 1, characterized in that: A processing table (5) is fixedly installed in the middle of the upper end of the installation base (4). A connection head (10) is fixedly installed at the front side of the support member (9). A protective gas tank (12) is fixedly installed at the upper end of the stabilizing plate (3) on one side of the support member (9). Reinforcing ribs (301) are fixedly installed at both sides of the lower end of the stabilizing plate (3). A support platform (15) is fixedly installed in the middle of the lower side of the stabilizing plate (3).

3. An automatic welding device for a steel pipe pole cross arm according to claim 1, characterized in that: A feeding member (2) is fixedly installed at one side of the upper end of the stabilizing plate (3). A discharging member (8) is fixedly installed at the other side of the upper end of the stabilizing plate (3). A feeding interface (201) is fixedly installed at the side of the feeding member (2). A discharging interface (801) is fixedly installed at the side of the discharging member (8). A pair of auxiliary pulleys (202) are fixedly installed at the inner sides of the feeding interface (201) and the discharging interface (801). Electric rollers (16) are fixedly installed above the inner sides of the feeding member (2) and the discharging member (8). "L”-shaped slots are formed in the middle of both the auxiliary pulley (202) and the feeding member (2).

4. An automatic welding device for a steel pipe pole cross arm according to claim 1, characterized in that: The welding device includes a lifting connection plate (17) fixedly installed at the upper end of the lifting platform (20). A pair of electric control welding guns (18) are arranged at the lower end of the lifting connection plate (17).

5. An automatic welding device for a steel pipe pole cross arm according to claim 1, characterized in that: A lifting member (7) is fixedly installed on the middle side of the support member (9). A lifting motor (11) is fixedly installed in the middle of the lifting member (7). A feeding motor (1101) is fixedly installed below the lifting motor (11) on the lifting member (7). The output end of the feeding motor (1101) is meshed and connected with a linkage tooth plate (2001). A transmission belt (1102) is fixedly installed at the lower end of the inner cavity of the support member (9). A limiting member (901) is fixedly installed above the transmission belt (1102) on the support member (9). The feeding motor (1101) controls the rotation of the transmission belt (1102).

6. The automatic welding device for the cross arm of a steel pipe pole according to claim 1, wherein: A recycling fan (22) is fixedly installed at the rear side of the inner cavity of the support member (9). A square groove is provided in the support member (9) for the welding device.

7. An automatic welding device for steel pipe pole cross arms according to claim 1, characterized in that: The flipping device includes a rotating motor (24) fixedly installed in the middle of the stabilizing plate (3). The output end of the rotating motor (24) is fixedly installed with a flipping member (25).

8. An automatic welding device for a steel pipe pole cross arm according to claim 1, characterized in that: An electric separating member (23) is fixedly installed on one side of the support member (9) close to the discharging member (8). A flipping groove (33) is provided on the side of the stabilizing plate (3) where the flipping device is located. A waste material groove (26) is fixedly installed below the flipping device on the stabilizing plate (3). A limiting groove (30) is provided in front of the support base (29) on the stabilizing plate (3).

9. An automatic welding device for a steel pipe pole cross arm according to claim 1, characterized in that: The pressure sensing device includes a limiting plate (28) rotatably installed at the lower end of the support member (9). A contact spring (27) is fixedly installed at the upper end of the limiting plate (28). A pressure sensor is arranged at the upper end of the limiting plate (28). The air flow device includes an electric push rod (35) fixedly installed at the upper end of the stabilizing plate (3). An auxiliary air guiding member (34) is fixedly installed in front of the electric push rod (35). A wind pressure sensing head (36) is fixedly installed in the middle of the auxiliary air guiding member (34).

10. An automatic welding method for a steel pipe pole crossarm, which relates to an automatic welding device for a steel pipe pole crossarm described in any one of claims 1-9, and is characterized in that It includes the following steps: Step 1: Connect the feeding device of the steel workpiece (1) and the feeding device of the welding workpiece (19) to the feeding interface (201) and the connector (10) respectively; Step 2: Through the synchronization module of the main control module inside the main control box (6), the conveying speeds of the workpiece transmission module and the splicing part transmission module for the steel workpiece (1) and the welding workpiece (19) can be controlled; Step 3: The steel workpiece (1) moves along the flipping member (25) to the lower part of the welding device. At the same time, the welding workpiece (19) falls onto the upper side of the steel workpiece (1) through the transmission belt (1102). Then, the steel workpiece (1) and the welding workpiece (19) are spliced and welded by the welding device; Step 4: The workpiece finished product after welding is pushed by the workpiece pressure at the front side and is detected by the pressure sensing device and the air flow device respectively. If there are defects, the flipping device is started to recycle the waste parts. If there are no defects, it is discharged normally.

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