Automatic butt welding production line for feeding of square and rectangular pipes

Abstract

The utility model discloses a square and rectangular tube feeding automatic butt welding production line which comprises a machining table, a welding table is arranged on the top face of the machining table, a first conveying belt and a second conveying belt are arranged on the top face of the machining table, a centering sensor is embedded in the top face of the welding table, and an L-shaped plate extending to the top end of the welding table is fixedly arranged on the machining table. A downward pressing air cylinder is arranged on the top face of the L-shaped plate and connected with a downward pressing rod, a downward pressing frame is rotationally arranged at the other end of the downward pressing rod, a rotating motor for driving the downward pressing frame is embedded in the bottom face of the downward pressing rod, electric push rods are arranged on the front side wall body and the rear side wall body of the downward pressing frame correspondingly, and the output ends of the electric push rods are connected with clamping plates. An inclined discharging frame close to the lower pressing frame is arranged on the L-shaped plate in a penetrating mode. Compared with the prior art, the device has the advantages that the production efficiency can be remarkably improved through the procedures of automatic feeding, centering, discharging through a rotating motor and the like; and the centering sensor can ensure the stability of the welding quality.

Description

Technical Field

[0001] The utility model relates to the technical field of square tube processing, in particular to an automatic butt welding production line for feeding square tubes. Background Art

[0002] Square tube is a name for square tubes and rectangular tubes, that is, steel tubes with equal and unequal side lengths. It is made by rolling steel strips through processing. Generally, the steel strips are unpacked, flattened, curled, and welded to form round tubes, which are then rolled into square tubes and cut into required lengths. In the field of metal processing, welding of square tubes is one of the common processes and is widely used in construction, bridges, ships and other industries.

[0003] The existing square tube welding production method usually adopts manual welding or simple mechanical equipment, which has problems such as low production efficiency, unstable welding quality, and high labor intensity. Therefore, it is of great significance to have a production line that can realize automatic welding of square tubes. Utility Model Content

[0004] The utility model aims to solve the technical problem that manual welding or simple mechanical equipment is used, the production efficiency is low and the welding quality is unstable, and provides a highly efficient square tube feeding automatic welding production line.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is: an automatic butt welding production line for square tube feeding, comprising a stable base, a group of support columns are symmetrically arranged on the top surface of the stable base, a processing table is connected to the top of the support columns, a group of protective plates are symmetrically arranged on the front and back of the top surface of the processing table, a welding table located between the protective plates is fixedly arranged in the center of the top surface of the processing table, a first conveyor belt is arranged on the top surface of the processing table, which is close to the left side of the welding table, and a second conveyor belt is arranged on the top surface of the processing table, which is close to the right side of the welding table, and the first conveyor belt and the second conveyor belt are symmetrically arranged for transmission. A centering sensor is embedded in the center of the top surface of the welding table, an L-shaped plate extending to the top of the welding table is fixedly provided on the processing table, a pressing cylinder is provided on the top surface of the L-shaped plate, and the output end of the pressing cylinder is connected to a pressing rod located directly above the welding table, the other end of the pressing rod is rotatably connected to a pressing frame, a rotating motor for driving the pressing frame is embedded in the bottom surface of the pressing rod, electric push rods are provided on the front and rear side walls of the pressing frame, a clamping plate is connected to the output end of the electric push rod, a welding head is provided in the center of the pressing frame, and an inclined material discharge frame close to the pressing frame is penetrated through the L-shaped plate.

[0006] As an improvement, the top surfaces of the first conveyor belt and the second conveyor belt are kept level with the top surface of the welding table, a plurality of first steel pipes that are constantly approaching the welding table are evenly arranged on the first conveyor belt, and a plurality of second steel pipes that are constantly approaching the welding table are evenly arranged on the second conveyor belt, so that the first conveyor belt and the second conveyor belt can push the first steel pipes and the second steel pipes onto the welding table respectively.

[0007] As an improvement, a driving unit for driving the first conveyor belt and the second conveyor belt is connected between the protective plates, and a control cabinet is provided in the center of the top surface of the stable base. The control cabinet is electrically connected to the driving unit, and the driving unit and the control cabinet cooperate to control the opening and closing of the first conveyor belt and the second conveyor belt, and control their speeds, and cooperate with welding and unloading operations.

[0008] As an improvement, a cold water bucket is fixedly provided on the top surface of the L-shaped plate, and a group of spray plates located on both sides of the welding head are symmetrically provided in the lower pressure frame, so as to facilitate spraying and cooling the steel pipes after welding to ensure the welding effect.

[0009] As an improvement, an electric welder cooperating with the welding head is screwed and fixed on the bottom surface of the L-shaped plate, and a connecting cord is connected between the electric welder and the welding head. The setting of the connecting cord makes it convenient for the electric welder to work when rotating and unloading.

[0010] Compared with the prior art, the utility model has the advantages of: through the processes of automatic feeding with conveyor belt, automatic centering with centering sensor, clamping welding and unloading with rotating motor, the production efficiency can be significantly improved and the production cycle can be reduced;

[0011] Through the precise coordination of the centering sensor and the control system, the stability and reliability of the welding quality can be ensured;

[0012] Through automated production lines, manual operations can be reduced, labor intensity can be lowered, production costs can be reduced, and economic benefits can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the first stereoscopic diagram of an automatic butt welding production line for feeding square and rectangular tubes of the utility model.

[0014] Figure 2 It is the second stereoscopic view of the utility model of an automatic butt welding production line for feeding square and rectangular tubes.

[0015] Figure 3 It is the third stereoscopic view of the utility model of an automatic butt welding production line for feeding square and rectangular tubes.

[0016] Figure 4 It is a stereoscopic diagram of a lower pressing frame of an automatic butt welding production line for feeding square and rectangular tubes of the utility model.

[0017] As shown in the figure: 1. Stable base; 2. Support column; 3. Processing table; 4. Protective plate; 5. Welding table; 6. First conveyor belt; 7. Second conveyor belt; 8. Centering sensor; 9. L-shaped plate; 10. Down-pressing cylinder; 11. Down-pressing rod; 12. Down-pressing frame; 13. Rotating motor; 14. Electric push rod; 15. Clamping plate; 16. Welding head; 17. Inclined feeding frame; 18. First steel pipe; 19. Second steel pipe; 20. Drive unit; 21. Control cabinet; 22. Cold water bucket; 23. Spray plate; 24. Electric welder; 25. Connecting cord. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0019] Embodiment 1

[0020] Combined with Figure 1-3 As shown, a square tube feeding automatic butt welding production line comprises a stable base 1, a group of support columns 2 are symmetrically arranged on the top surface of the stable base 1, a processing table 3 is connected to the top of the support columns 2, a group of protective plates 4 are symmetrically arranged on the front and rear of the top surface of the processing table 3, a welding table 5 located between the protective plates 4 is fixedly arranged in the center of the top surface of the processing table 3, a first conveyor belt 6 close to the left side of the welding table 5 is arranged on the top surface of the processing table 3, a second conveyor belt 7 close to the right side of the welding table 5 is arranged on the top surface of the processing table 3, a driving unit 20 for driving the first conveyor belt 6 and the second conveyor belt 7 is connected between the protective plates 4, a control cabinet 21 is arranged in the center of the top surface of the stable base 1, the control cabinet 21 is electrically connected to the driving unit 20, the first conveyor belt 6 and the second conveyor belt 7 are symmetrically arranged for transmission, a centering sensor 8 is embedded in the center of the top surface of the welding table 5, the top surfaces of the first conveyor belt 6 and the second conveyor belt 7 are kept level with the top surface of the welding table 5, a plurality of first steel pipes 18 that are constantly approaching the welding table 5 are evenly arranged on the first conveyor belt 6, and a plurality of second steel pipes 19 that are constantly approaching the welding table 5 are evenly arranged on the second conveyor belt 7;

[0021] Through the above structure, the device is powered by the control cabinet 21, and the first conveyor belt 6 and the second conveyor belt 7 are turned on. The first conveyor belt 6 conveys the first steel pipe 18 to the welding table 5, and the second conveyor belt 7 conveys the second steel pipe 19 to the welding table 5, until the centering sensor 8 detects that one end of the first steel pipe 18 and the second steel pipe 19 are in close contact, then the first conveyor belt 6 and the second conveyor belt 7 can be controlled to stop working;

[0022] Embodiment 2

[0023] Based on the first embodiment, combined with the attached Figure 4As shown, the processing table 3 is fixedly provided with an L-shaped plate 9 extending to the top of the welding table 5, the top surface of the L-shaped plate 9 is provided with a pressing cylinder 10, the output end of the pressing cylinder 10 is connected with a pressing rod 11 located just above the welding table 5, the other end of the pressing rod 11 is rotatably connected with a pressing frame 12, the front and rear side walls of the pressing frame 12 are both provided with electric push rods 14, the output end of the electric push rod 14 is connected with a clamping plate 15, and the center of the pressing frame 12 is provided with a welding head 1 6. The bottom surface of the L-shaped plate 9 is screwed and fixed with an electric welder 24 that cooperates with the welding head 16. A connecting soft wire 25 is connected between the electric welder 24 and the welding head 16. A cold water bucket 22 is fixed on the top surface of the L-shaped plate 9. A group of spray plates 23 located on both sides of the welding head 16 are symmetrically arranged in the lower pressing frame 12. The bottom surface of the lower pressing rod 11 is embedded with a rotating motor 13 that drives the lower pressing frame 12. The L-shaped plate 9 is penetrated by an inclined material discharge frame 17 close to the lower pressing frame 12;

[0024] Through the above structure, the pressing cylinder 10 pushes the pressing frame 12 to move downward, so that the pressing frame 12 is located in front of the first steel pipe 18 and the second steel pipe 19, until the pressing frame 12 is close to the top surface of the welding table 5, the welding head 16 is close to the middle position of the first steel pipe 18 and the second steel pipe 19, and the electric push rod 14 pushes the clamping plate 15 to be close to the outer wall of the first steel pipe 18 and the second steel pipe 19, completing the limit clamping of the first steel pipe 18 and the second steel pipe 19, and then the electric welder 24 is turned on to cooperate with the welding table 5 to perform welding work, and the first steel pipe 18 and the second steel pipe 19 are welded. 19 welding, then the spray plate 23 draws cold water in the cold water bucket 22 to cool the welding point, the pressing cylinder 10 pulls the pressing frame 12 to move upward, and the first steel pipe 18 and the second steel pipe 19 are lifted up by the clamping plate 15, and finally the rotating motor 13 is turned on, and the rotating motor 13 rotates the pressing frame 12 90 degrees, so that the pressing frame 12 is located at the top of the inclined blanking frame 17, and the electric push rod 14 pulls the clamping plate 15 away from the steel pipe, releasing the first steel pipe 18 and the second steel pipe 19 as a whole to the inclined blanking frame 17, and the blanking operation is completed.

[0025] During the specific implementation of the utility model, the control cabinet 21 is used to power the device, and the first conveyor belt 6 and the second conveyor belt 7 are turned on. The first conveyor belt 6 conveys the first steel pipe 18 to the welding table 5, and the second conveyor belt 7 conveys the second steel pipe 19 to the welding table 5, until the centering sensor 8 detects that one end of the first steel pipe 18 and the second steel pipe 19 are in close contact, the first conveyor belt 6 and the second conveyor belt 7 can be controlled to stop working, and the pressing cylinder 10 pushes the pressing frame 12 to move downward, so that the pressing frame 12 is located at the first steel pipe 1 8 and the front side of the second steel pipe 19, until the lower pressing frame 12 is close to the top surface of the welding table 5, the welding head 16 is close to the middle position of the first steel pipe 18 and the second steel pipe 19, the electric push rod 14 pushes the clamping plate 15 to be close to the outer wall of the first steel pipe 18 and the second steel pipe 19, and the first steel pipe 18 and the second steel pipe 19 are limited and clamped, and then the electric welder 24 is turned on to cooperate with the welding table 5 to perform welding work, and the first steel pipe 18 and the second steel pipe 19 are welded, and then the spray plate 23 draws cold water in the cold water bucket 22 to cool the welding point;

[0026] The pressing cylinder 10 pulls the pressing frame 12 to move upward, and the first steel pipe 18 and the second steel pipe 19 are lifted up by the clamping plate 15. Finally, the rotating motor 13 is turned on, and the rotating motor 13 rotates the pressing frame 12 90 degrees, so that the pressing frame 12 is located at the top of the inclined blanking frame 17. The electric push rod 14 pulls the clamping plate 15 away from the steel pipe, releasing the first steel pipe 18 and the second steel pipe 19 as a whole onto the inclined blanking frame 17, and the blanking operation is completed; the above operations are repeated to realize the continuous welding operation of the steel pipe.

[0027] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. An automatic butt welding production line for square tube feeding, comprising a stable base (1), a group of support columns (2) are symmetrically arranged on the top surface of the stable base (1), and a processing table (3) is commonly connected to the top of the support columns (2), characterized in that: A group of protective plates (4) are symmetrically arranged at the front and rear of the top of the processing table (3); a welding table (5) located between the protective plates (4) is fixedly arranged at the center of the top of the processing table (3); a first conveyor belt (6) is arranged on the top of the processing table (3) and is close to the left side of the welding table (5); a second conveyor belt (7) is arranged on the top of the processing table (3) and is close to the right side of the welding table (5); the first conveyor belt (6) and the second conveyor belt (7) are symmetrically arranged for transmission; a centering sensor (8) is embedded in the center of the top of the welding table (5); an L-shaped plate (9) is fixedly arranged on the processing table (3) and extends to the top of the welding table (5); the top of the L-shaped plate (9) is A pressing cylinder (10) is provided, the output end of the pressing cylinder (10) is connected to a pressing rod (11) located directly above the welding table (5), the other end of the pressing rod (11) is rotatably connected to a pressing frame (12), a rotating motor (13) for driving the pressing frame (12) is embedded in the bottom surface of the pressing rod (11), electric push rods (14) are provided on the front and rear side walls of the pressing frame (12), the output end of the electric push rod (14) is connected to a clamping plate (15), a welding head (16) is provided in the center of the pressing frame (12), and an inclined material discharge frame (17) close to the pressing frame (12) is penetrated through the L-shaped plate (9).

2. According to claim 1, the square tube automatic butt welding production line is characterized by: The top surfaces of the first conveyor belt (6) and the second conveyor belt (7) are kept level with the top surface of the welding platform (5); a plurality of first steel pipes (18) that are constantly approaching the welding platform (5) are evenly arranged on the first conveyor belt (6); and a plurality of second steel pipes (19) that are constantly approaching the welding platform (5) are evenly arranged on the second conveyor belt (7).

3. According to claim 1, the automatic butt welding production line for square and rectangular tube feeding is characterized in that: A driving unit (20) for driving the first conveyor belt (6) and the second conveyor belt (7) is connected between the protection plates (4), and a control cabinet (21) is provided at the center of the top surface of the stable base (1), and the control cabinet (21) is electrically connected to the driving unit (20).

4. According to claim 1, the square tube automatic butt welding production line is characterized by: A cold water bucket (22) is fixedly provided on the top surface of the L-shaped plate (9), and a group of spray plates (23) located on both sides of the welding head (16) are symmetrically provided in the lower pressing frame (12).

5. The square tube automatic butt welding production line according to claim 1 is characterized by: An electric welder (24) matched with the welding head (16) is screwed and fixed on the bottom surface of the L-shaped plate (9), and a connecting soft wire (25) is connected between the electric welder (24) and the welding head (16).

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