Flange plasma welding device

Abstract

The application discloses a kind of flange plasma welding device, belong to plasma welding technical field, including for the butt joint of flange and welding pipe butt joint mechanism, butt joint mechanism is provided for the plasma welding of flange and welding pipe welding mechanism and for the continuous feeding of flange and welding pipe feeding mechanism;The butt joint mechanism of the application is realized by the reverse rotation of strong magnetic disk and weak magnetic disk, automatic positioning and butt joint of welding pipe and flange are realized, and automatic unloading is carried out after welding, degree of automation is high, continuity is good;Butt joint mechanism of the application is cooperated with welding mechanism, can realize the overall welding of flange and welding pipe, and the whole welding process is automatically carried out, and welding efficiency is high;Feeding mechanism of the application can realize automatic and continuously feeding flange and welding pipe continuously, realize the automatic operation of feeding, welding and unloading.

Description

Technical Field

[0001] This invention relates to the field of plasma welding technology, and in particular to a flange plasma welding apparatus. Background Technology

[0002] In piping systems, the connection between flanges and welded pipes is a common process requirement. Traditional welding methods mainly employ manual electric arc welding or gas shielded welding. However, these methods suffer from low welding efficiency, inconsistent weld quality, and high labor intensity. Especially in mass production, traditional welding methods struggle to achieve continuous and automated production, resulting in low production efficiency and failing to meet the demands of modern industry.

[0003] In existing automated welding equipment, some devices use robotic arms in conjunction with welding torches for welding, but there are still shortcomings in the connection between flanges and welded pipes. For example, insufficient positioning accuracy between the flange and the welded pipe can easily lead to welding deviations; the coordination between the feeding mechanism and the welding mechanism is poor, making it difficult to achieve continuous and efficient welding operations. In addition, traditional equipment lacks effective fixation and rotation control of the workpiece during the welding process, affecting the uniformity of weld quality.

[0004] To address the aforementioned issues, there is an urgent need for a device capable of automatically docking, precisely positioning, and completing high-quality welding between flanges and welded pipes. This device should possess an efficient feeding mechanism, a reliable docking mechanism, and a stable welding mechanism to achieve automated and continuous welding production, improve welding efficiency and quality, and reduce manual intervention and labor intensity. Summary of the Invention

[0005] To address the aforementioned technical problems, the present invention adopts the following technical solution: a flange plasma welding device, comprising a docking mechanism for docking a flange and a welded pipe, the docking mechanism comprising a frame, and a welding mechanism for performing plasma welding on the flange and the welded pipe and a feeding mechanism for continuously feeding the flange and the welded pipe. The docking mechanism includes a fixed plate and a fixed base that are fixedly installed on the frame. A flange turntable is rotatably installed on the fixed plate, and a low-voltage disk is rotatably installed on the fixed base.

[0006] Furthermore, the docking mechanism also includes a motor fixedly mounted on the frame, a flange turntable with several placement notches, a strong magnetic disk fixedly mounted on the flange turntable, a strong magnetic disk with several strong magnetic notches, and the strong magnetic notches are located above the placement notches.

[0007] Furthermore, the weak magnetic disk is provided with several weak magnetic notches, the fixed base is provided with notches, the motor drives the weak magnetic disk to rotate through belt drive, and the weak magnetic disk drives the flange turntable to rotate through gear drive, with the rotation direction of the weak magnetic disk and the flange turntable being opposite.

[0008] Furthermore, three guide wheels are rotatably installed within the placement notch, and a fixing ring is fixedly installed on the fixing plate. When the flange is located within the placement notch, the flange contacts the guide wheels.

[0009] Furthermore, the strong disk and the weak disk are magnetic, and the strong disk is more magnetic than the weak disk.

[0010] The motor drives the weak magnetic disk to rotate clockwise via belt drive. The weak magnetic disk, in turn, drives the strong magnetic disk and flange turntable to rotate counterclockwise via gear drive. The feeding mechanism continuously feeds the flange into the strong magnetic notch and the welding pipe into the weak magnetic notch. The flange rotates with the strong magnetic disk, and the welding pipe rotates with the weak magnetic disk. When the strong magnetic notch and the weak magnetic notch intersect, because the magnetism of the strong magnetic disk is greater than that of the weak magnetic disk, and the strong magnetic disk rotates counterclockwise while the weak magnetic disk rotates clockwise, the welding pipe is attracted to the strong magnetic notch by the strong magnetic disk. This results in the welding pipe being located in the strong magnetic notch, while the flange is located in the placement notch, with the welding pipe above the flange, thus achieving the connection between the flange and the welding pipe. Subsequently, the strong magnetic disk rotates, carrying the flange and the welding pipe to the welding mechanism.

[0011] Furthermore, the welding mechanism includes a fixed rail fixedly mounted on the frame, a slider slidably mounted on the fixed rail, a robot arm mounted on the slider, a plasma welding gun mounted at the end of the robot arm, and a spring between the fixed rail and the slider.

[0012] Furthermore, a push plate is fixedly installed on the slider, a lever is fixedly installed on the flange turntable, and a material discharge port is provided on the fixed plate.

[0013] As the flange turntable rotates, the fixed ring, in conjunction with three guide wheels, drives the welded pipe to rotate continuously. When the flange and welded pipe move to the plasma welding gun, the plasma welding gun welds the flange and welded pipe. Simultaneously, the lever moves the push plate and slider to slide along the fixed rail. The spring between the fixed rail and the slider is compressed. Combined with the extension and rotation of the robotic arm, the plasma welding gun performs a full circle of plasma welding on the flange and welded pipe. When the lever passes the push plate, the fixed rail and slider reset, allowing the slider to return to its original position, ready for the next welding. Subsequently, the flange turntable carries the welded flange and welded pipe to the discharge port. The weight of the flange and welded pipe is greater than the magnetic force of the discharge port, causing the flange and welded pipe to fall out and be collected. Then, the flange turntable and the weak disk continue to rotate, continuously feeding, welding, and discharging, repeating this process.

[0014] Furthermore, the feeding mechanism includes a pipe-feeding cylinder and a plate-feeding cylinder fixedly installed on the frame. The pipe-feeding cylinder contains welded pipes, and the plate-feeding cylinder contains flanges. A track disk is rotatably installed below the plate-feeding cylinder. The flange turntable drives the track disk to rotate via belt drive. A pipe-pushing plate is slidably installed on the pipe-feeding cylinder, and a plate-pushing plate is slidably installed on the plate-feeding cylinder. A push rod is fixedly installed on the pipe-pushing plate, and the push rod is fixedly installed with the plate-pushing plate.

[0015] Furthermore, a guide post is fixedly installed below the push rod, and an irregular track is set on the track disk, within which the guide post slides.

[0016] The flange turntable drives the track disk to rotate via a transmission belt. The guide column, push rod, push tube plate, and push plate slide back and forth relative to the pipe-laying cylinder and the plate-laying cylinder through the irregular track. The push plate pushes the flange stacked at the bottom of the plate-laying cylinder into the placement gap, and the push tube plate pushes the welded pipe at the bottom of the pipe-laying cylinder into the weak magnetic gap.

[0017] The beneficial effects of this invention compared with the prior art are: (1) The docking mechanism set in this invention realizes the fully automatic positioning and docking of the welded pipe and the flange through the reverse rotation of the strong disk and the weak disk, and automatically unloads the material after the welding is completed. The degree of automation is high and the continuity is good; (2) The docking mechanism set in this invention cooperates with the welding mechanism to realize the full welding of the flange and the welded pipe. The entire welding process is carried out automatically and the welding efficiency is high; (3) The feeding mechanism set in this invention can realize the automatic and continuous feeding of the flange and the welded pipe, realizing the fully automatic feeding, welding and unloading. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the docking mechanism structure of the present invention. Figure 1 .

[0020] Figure 3 This is a schematic diagram of the docking mechanism structure of the present invention. Figure 2 .

[0021] Figure 4 This is a schematic diagram of the welding mechanism structure of the present invention. Figure 1 .

[0022] Figure 5 This is a schematic diagram of the welding mechanism structure of the present invention. Figure 2 .

[0023] Figure 6 This is a schematic diagram of the feeding mechanism of the present invention. Figure 1 .

[0024] Figure 7This is a schematic diagram of the feeding mechanism of the present invention. Figure 2 .

[0025] Figure 8 This is a schematic diagram of the feeding mechanism of the present invention. Figure 3 .

[0026] Reference numerals: 101-Frame; 102-Fixed plate; 103-Fixed base; 104-Notch; 105-Flange turntable; 106-Strong magnetic disk; 107-Placement notch; 108-Strong magnetic notch; 109-Weak magnetic disk; 110-Guide wheel; 111-Motor; 112-Fixed ring; 113-Weak magnetic notch; 201-Fixed rail; 202-Slider; 203-Plasma welding torch; 204-Push plate; 205-Lever; 206-Discharge port; 207-Robot arm; 301-Pipe placement cylinder; 302-Plate placement cylinder; 303-Push rod; 304-Push pipe plate; 305-Push plate plate; 306-Trajectory disk; 307-Guide column; 308-Irregular trajectory; 4-Flange; 5-Welded pipe. Detailed Implementation

[0027] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0028] Example: Reference Figures 1-8 A flange plasma welding apparatus includes a docking mechanism for docking a flange 4 and a welded pipe 5. The docking mechanism includes a frame 101, a welding mechanism for performing plasma welding on the flange 4 and the welded pipe 5, and a feeding mechanism for continuously feeding the flange 4 and the welded pipe 5. The docking mechanism includes a fixed plate 102 and a fixed seat 103 fixedly installed on the frame 101. A flange turntable 105 is rotatably installed on the fixed plate 102, and a low disk 109 is rotatably installed on the fixed seat 103.

[0029] like Figure 2 , Figure 3 As shown, the docking mechanism also includes a motor 111 fixedly installed on the frame 101, a number of placement notches 107 are provided on the flange turntable 105, a strong magnetic disk 106 is fixedly installed on the flange turntable 105, a number of strong magnetic notches 108 are provided on the strong magnetic disk 106, and the strong magnetic notches 108 are located above the placement notches 107.

[0030] like Figure 2 , Figure 3 As shown, the weak magnetic disk 109 is provided with several weak magnetic gaps 113, and the fixed base 103 is provided with gaps 104. The motor 111 drives the weak magnetic disk 109 to rotate through belt drive, and the weak magnetic disk 109 drives the flange turntable 105 to rotate through gear drive. The rotation direction of the weak magnetic disk 109 and the flange turntable 105 is opposite.

[0031] like Figure 2 , Figure 3 As shown, three guide wheels 110 are rotatably installed inside the placement notch 107, and a fixing ring 112 is fixedly installed on the fixing plate 102. When the flange 4 is located inside the placement notch 107, the flange 4 contacts the guide wheels 110.

[0032] like Figure 2 , Figure 3 As shown, the strong disk 106 and the weak disk 109 are magnetic, and the magnetic properties of the strong disk 106 are greater than those of the weak disk 109.

[0033] The motor 111 rotates, driving the weak magnetic disk 109 clockwise via belt drive. The weak magnetic disk 109, through gear drive, drives the strong magnetic disk 106 and flange turntable 105 counterclockwise. A feeding mechanism continuously feeds the flange 4 into the strong magnetic notch 108 and the welded pipe 5 into the weak magnetic notch 113. The flange 4 rotates with the strong magnetic disk 106, and the welded pipe 5 rotates with the weak magnetic disk 109. When the strong magnetic notch 108 and the weak magnetic notch 113 intersect, due to the strong magnetic... The magnetism of disk 106 is greater than that of disk 109. When disk 106 rotates counterclockwise and disk 109 rotates clockwise, the welding tube 5 is attracted to the strong magnetic notch 108 by disk 106, thus the welding tube 5 is located in the strong magnetic notch 108, while the flange 4 is located in the placement notch 107. The welding tube 5 is located above the flange 4, thus achieving the docking of flange 4 and welding tube 5. Then disk 106 rotates, driving flange 4 and welding tube 5 to the welding mechanism.

[0034] like Figure 4 , Figure 5 As shown, the welding mechanism includes a fixed rail 201 fixedly mounted on the frame 101, a slider 202 slidably mounted on the fixed rail 201, a robot arm 207 mounted on the slider 202, a plasma welding gun 203 mounted at the end of the robot arm 207, and a spring between the fixed rail 201 and the slider 202.

[0035] like Figure 4 , Figure 5 As shown, a push plate 204 is fixedly installed on the slider 202, a lever 205 is fixedly installed on the flange turntable 105, and a material discharge port 206 is provided on the fixed plate 102.

[0036] When the flange turntable 105 rotates, under the action of the fixed ring 112 and in conjunction with the three guide wheels 110, the welded pipe 5 will continuously rotate. When the flange 4 and the welded pipe 5 move to the plasma welding gun 203, the plasma welding gun 203 will weld the flange 4 and the welded pipe 5. At the same time, the lever 205 will push the push plate 204 and the slider 202 to slide along the fixed rail 201. The spring between the fixed rail 201 and the slider 202 will be compressed. In conjunction with the extension and rotation of the robot arm 207, the plasma welding gun 203 will drive the flange 4 and the welded pipe 5 to... After a full circle of plasma welding, when the lever 205 passes the push plate 204, the fixed rail 201 and the slider 202 are reset, causing the slider 202 to reset and prepare for the next welding. Then, the flange turntable 105 carries the welded flange 4 and welded pipe 5 to the discharge port 206. The weight of the flange 4 and welded pipe 5 is greater than the magnetic force of the discharge port 206, so the flange 4 and welded pipe 5 fall out of the discharge port 206 for collection. Then, the flange turntable 105 and the weak disk 109 continue to rotate, continuously feeding, welding, and unloading, repeating this process.

[0037] like Figures 6-8 As shown, the feeding mechanism includes a pipe-feeding cylinder 301 and a plate-feeding cylinder 302 fixedly installed on the frame 101. Welded pipes 5 are stacked inside the pipe-feeding cylinder 301, and flanges 4 are stacked inside the plate-feeding cylinder 302. A track disk 306 is rotatably installed below the plate-feeding cylinder 302. The flange turntable 105 drives the track disk 306 to rotate via belt drive. A pipe-pushing plate 304 is slidably installed on the pipe-feeding cylinder 301, and a plate-pushing plate 305 is slidably installed on the plate-feeding cylinder 302. A push rod 303 is fixedly installed on the pipe-pushing plate 304, and the push rod 303 is fixedly installed with the plate-pushing plate 305.

[0038] like Figures 6-8 As shown, a guide post 307 is fixedly installed below the push rod 303, and an irregular track 308 is provided on the track disk 306. The guide post 307 slides within the irregular track 308.

[0039] The flange turntable 105 drives the track disk 306 to rotate via a transmission belt. The guide post 307, push rod 303, push tube plate 304 and push plate 305 slide back and forth relative to the pipe release cylinder 301 and the plate release cylinder 302 via the irregular track 308. The push plate 305 pushes the flange 4 stacked at the bottom in the plate release cylinder 302 into the placement notch 107. The push tube plate 304 pushes the welded pipe 5 at the bottom in the pipe release cylinder 301 into the weak magnetic notch 113.

[0040] The working principle of the flange plasma welding device disclosed in this invention is as follows: Motor 111 rotates, driving the weak magnetic disk 109 clockwise via belt drive. The weak magnetic disk 109 drives the strong magnetic disk 106 and flange turntable 105 counterclockwise via gear drive. The flange turntable 105 drives the track disk 306 to rotate via a transmission belt. The guide post 307, push rod 303, push tube plate 304, and push plate 305 slide back and forth relative to the placement cylinder 301 and placement cylinder 302 via the irregular track 308. The push plate 305 pushes the flange 4, which is stacked at the bottom in the placement cylinder 302, into the placement notch 107. The push tube plate 304 pushes the welding tube 5, which is at the bottom in the placement cylinder 301, into the weak magnetic notch 113. This process continuously and intermittently pushes the flange... The flange 4 is inserted into the strong magnetic notch 108, and the welding pipe 5 is inserted into the weak magnetic notch 113. The flange 4 rotates together with the strong magnetic disk 106, and the welding pipe 5 rotates together with the weak magnetic disk 109. When the strong magnetic notch 108 and the weak magnetic notch 113 intersect, because the magnetism of the strong magnetic disk 106 is greater than that of the weak magnetic disk 109, and the strong magnetic disk 106 rotates counterclockwise while the weak magnetic disk 109 rotates clockwise, the welding pipe 5 will be attracted to the strong magnetic notch 108 by the strong magnetic disk 106. Thus, the welding pipe 5 is located in the strong magnetic notch 108, while the flange 4 is located in the placement notch 107, and the welding pipe 5 is located above the flange 4, realizing the docking of the flange 4 and the welding pipe 5. Then the strong magnetic disk 106 rotates, driving the flange 4 and the welding pipe 5 to the welding mechanism. When the flange turntable 105 rotates, under the action of the fixed ring 112 and in conjunction with the three guide wheels 110, the welded pipe 5 will continuously rotate. When the flange 4 and the welded pipe 5 move to the plasma welding gun 203, the plasma welding gun 203 will weld the flange 4 and the welded pipe 5. At the same time, the lever 205 will push the push plate 204 and the slider 202 to slide along the fixed rail 201. The spring between the fixed rail 201 and the slider 202 will be compressed. In conjunction with the extension and rotation of the robot arm 207, the plasma welding gun 203 will drive the flange 4 and the welded pipe 5 to... After a full circle of plasma welding, when the lever 205 passes the push plate 204, the fixed rail 201 and the slider 202 are reset, causing the slider 202 to reset and prepare for the next welding. Then, the flange turntable 105 carries the welded flange 4 and welded pipe 5 to the discharge port 206. The weight of the flange 4 and welded pipe 5 is greater than the magnetic force of the discharge port 206, so the flange 4 and welded pipe 5 fall out of the discharge port 206 for collection. Then, the flange turntable 105 and the weak disk 109 continue to rotate, continuously feeding, welding, and unloading, repeating this process.

[0041] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the present invention based on the technical solution and inventive concept of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A flange plasma welding apparatus, comprising a docking mechanism for docking a flange (4) and a welding pipe (5), characterized in that: The docking mechanism includes a frame (101), which is equipped with a welding mechanism for plasma welding of the flange (4) and the welded pipe (5) and a feeding mechanism for continuously feeding the flange (4) and the welded pipe (5). The docking mechanism includes a fixed plate (102) and a fixed seat (103) fixedly installed on the frame (101). A flange turntable (105) is rotatably installed on the fixed plate (102), and a weak disk (109) is rotatably installed on the fixed seat (103).

2. The flange plasma welding apparatus according to claim 1, characterized in that: The docking mechanism also includes a motor (111) fixedly installed on the frame (101), a plurality of placement notches (107) provided on the flange turntable (105), a strong magnetic disk (106) fixedly installed on the flange turntable (105), a plurality of strong magnetic notches (108) provided on the strong magnetic disk (106), and the strong magnetic notches (108) are located above the placement notches (107).

3. The flange plasma welding apparatus according to claim 2, characterized in that: The weak magnetic disk (109) is provided with several weak magnetic notches (113), and the fixed base (103) is provided with notches (104). The motor (111) drives the weak magnetic disk (109) to rotate through belt drive. The weak magnetic disk (109) drives the flange turntable (105) to rotate through gear drive. The rotation directions of the weak magnetic disk (109) and the flange turntable (105) are opposite.

4. The flange plasma welding apparatus according to claim 1, characterized in that: Three guide wheels (110) are rotatably installed inside the placement notch (107), and a fixing ring (112) is fixedly installed on the fixing plate (102). When the flange (4) is located inside the placement notch (107), the flange (4) contacts the guide wheels (110).

5. A flange plasma welding apparatus according to claim 4, characterized in that: The strong disk (106) and the weak disk (109) are magnetic, and the magnetic properties of the strong disk (106) are greater than those of the weak disk (109).

6. The flange plasma welding apparatus according to claim 1, characterized in that: The welding mechanism includes a fixed rail (201) fixedly installed on the frame (101), a slider (202) slidably installed on the fixed rail (201), a robot arm (207) provided on the slider (202), a plasma welding gun (203) provided at the end of the robot arm (207), and a spring provided between the fixed rail (201) and the slider (202).

7. A flange plasma welding apparatus according to claim 6, characterized in that: A push plate (204) is fixedly installed on the slider (202), a lever (205) is fixedly installed on the flange turntable (105), and a material discharge port (206) is provided on the fixed plate (102).

8. The flange plasma welding apparatus according to claim 1, characterized in that: The feeding mechanism includes a pipe-laying cylinder (301) and a plate-laying cylinder (302) fixedly installed on the frame (101). Welded pipes (5) are stacked inside the pipe-laying cylinder (301), and flanges (4) are stacked inside the plate-laying cylinder (302). A track disk (306) is rotatably installed below the plate-laying cylinder (302). The flange turntable (105) drives the track disk (306) to rotate via belt drive. A pusher plate (304) is slidably installed on the pipe-laying cylinder (301), and a pusher plate (305) is slidably installed on the plate-laying cylinder (302). A push rod (303) is fixedly installed on the pusher plate (304), and the push rod (303) is fixedly installed with the pusher plate (305).

9. A flange plasma welding apparatus according to claim 8, characterized in that: A guide post (307) is fixedly installed below the push rod (303), and an irregular track (308) is provided on the track disk (306). The guide post (307) slides within the irregular track (308).

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