Automatic flange welding equipment

Abstract

The utility model relates to automatic flange welding equipment, which belongs to the technical field of welding equipment and comprises a base, a rotating shaft, a rotating motor, a four-jaw chuck, a support frame and a lifting adjusting mechanism, the lifting adjusting mechanism is connected with a welding arm, a horizontal cylinder is mounted on the welding arm and connected with a vertical cylinder, and a welding gun is fixed at the bottom of the vertical cylinder. Centering clamping air cylinders are symmetrically arranged on the left side and the right side of the upper portion of the four-jaw chuck relative to the axis of the four-jaw chuck, the inner ends of the centering clamping air cylinders are connected with arc-shaped plates, and at least two vertical centering clamping rollers are evenly arranged on the inner sides of the arc-shaped plates. A flange can be positioned and clamped through the four-jaw chuck, the end face of the bottom of a pipeline is positioned, then the centering clamping air cylinder stretches out to enable the centering clamping roller to clamp the centering pipeline, spot welding can be completed by one person, and spot welding can be completed through the lifting adjusting mechanism, the horizontal air cylinder and the vertical air cylinder. And sealing welding can be more automatically completed in cooperation with a rotating motor, and the welding efficiency is improved.

Description

Technical Field

[0001] This utility model relates to an automated flange welding device, belonging to the technical field of welding equipment. Background Technology

[0002] Flanges are commonly used connecting components in machinery. Many pipelines require welding flanges to achieve pipeline connection. Currently, flange welding to pipelines is achieved by setting up a horizontal four-jaw chuck, which clamps the outer wall of the flange, and then inserts the pipeline into the inner hole of the flange. The end face of the four-jaw chuck is used to position the end of the pipeline. Then, one person holds the pipeline while another person performs spot welding. After spot welding is completed, the four-jaw chuck is rotated to perform sealing welding. This results in a low degree of automation in flange welding, affecting production efficiency, and requires two people to complete the work, which consumes manpower. Utility Model Content

[0003] This utility model provides an automated flange welding device to solve the problems existing in the background art.

[0004] This utility model relates to an automated flange welding equipment, including a base, a rotating shaft rotatably mounted on the base, a rotary motor connected to the rotating shaft, a four-jaw chuck fixed to the top of the rotating shaft, support frames symmetrically arranged on the left and right sides of the four-jaw chuck about its axis, a lifting and adjusting mechanism provided on one side of the support frame, a welding arm connected to the lifting and adjusting mechanism, a horizontal cylinder mounted on the welding arm, a vertical cylinder connected to the horizontal cylinder, a welding torch fixed to the bottom of the vertical cylinder, and centering clamping cylinders symmetrically arranged on the left and right sides above the four-jaw chuck about its axis, an arc-shaped plate connected to the inner end of the centering clamping cylinder, and at least two vertical centering clamping rollers evenly arranged on the inner side of the arc-shaped plate.

[0005] As a preferred embodiment, a U-shaped connecting plate is fixed to the outer side of the arc-shaped plate. The U-shaped connecting plate is fixedly connected to the inner end of the centering clamping cylinder, which facilitates the connection and fixation of the arc-shaped plate to the centering clamping cylinder.

[0006] As a preferred embodiment, the lifting adjustment mechanism includes a lifting slide rail fixed on one side of the support frame, a lifting slider on the lifting slide rail, the lifting slider being fixed to the outer end of the welding arm, a nut fixed on the welding arm, a lifting screw connected to the nut, the lifting screw being rotatably mounted on the support frame, and a lifting reduction motor fixedly connected to the top of the lifting screw. The rotation of the lifting reduction motor can drive the lifting screw to rotate, thereby driving the welding arm to move up and down, thus adjusting the initial height of the welding torch.

[0007] As a preferred embodiment, adjustable sliders are fixedly connected to the left and right sides of the bottom of the base, and the adjustable sliders are connected to adjustable slide rails. A frame is provided below the base, and the adjustable slide rails are vertically fixed on the frame. A screw jack is fixedly installed in the middle of the bottom of the base and is fixed on the frame. The height of the base and the four-jaw chuck can be adjusted according to the operator's height.

[0008] As a preferred option, the screw jack is equipped with a lifting control rod, which is rotatably mounted on the frame. A handwheel is fixed to the outer end of the lifting control rod, which allows for convenient control of the height of the screw jack.

[0009] As a preferred option, the bottom of the frame is equipped with wheels for easy movement of the welding position.

[0010] As a preferred embodiment, a driven gear is fixed to the bottom of the rotating shaft, the driven gear meshes with a driving gear, and the driving gear is fixedly connected to a rotary motor.

[0011] This utility model has the following beneficial effects:

[0012] The four-jaw chuck can be used to position and clamp the flange and the bottom end face of the pipe. Then, the centering clamping cylinder extends to clamp the centering clamping rollers to center the pipe. One person can complete the spot welding. Furthermore, the lifting adjustment mechanism, horizontal cylinder and vertical cylinder, together with the rotary motor, can complete the sealing welding more automatically and improve the welding efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0014] Figure 2 for Figure 1 Partial structural diagram;

[0015] Figure 3 This is a top view of the structure at the centering clamping roller.

[0016] In the diagram: 1. Arc-shaped plate; 2. U-shaped connecting plate; 3. Centering clamping cylinder; 4. Horizontal cylinder; 5. Welding torch; 6. Four-jaw chuck; 7. Driven gear; 8. Base; 9. Lifting control lever; 10. Vertical cylinder; 11. Lifting reduction motor; 12. Support frame; 13. Lifting screw; 14. Lifting slide rail; 15. Welding arm; 16. Rotary shaft; 17. Drive gear; 18. Adjusting slide rail; 19. Rotary motor; 20. Screw jack; 21. Traveling wheel; 22. Frame; 23. Handwheel; 24. Centering clamping roller. Detailed Implementation

[0017] The present invention will be further described below with reference to the embodiments.

[0018] Example 1, as Figures 1 to 3 As shown, this utility model is an automated flange welding equipment, including a base 8, on which a rotating shaft 16 is rotatably mounted. The rotating shaft 16 is connected to a rotary motor 19, which is a servo motor. A four-jaw chuck 6 is fixed to the top of the rotating shaft 16. Support frames 12 are symmetrically arranged on the left and right sides of the four-jaw chuck 6 about its axis. A lifting adjustment mechanism is provided on one side of the support frame 12. The lifting adjustment mechanism is connected to a welding arm 15. A horizontal cylinder 4 is installed on the welding arm 15. A vertical cylinder 10 is connected to the horizontal cylinder 4. A welding torch 5 is fixed to the bottom of the vertical cylinder 10. The welding torch 5 is an automatic welding torch. The four-jaw chuck 6 can also be a three-jaw chuck. The four-jaw chuck 6 is a hydraulic chuck. Centering clamping cylinders 3 are symmetrically arranged on the left and right sides above the four-jaw chuck 6 about its axis. An arc plate 1 is connected to the inner end of the centering clamping cylinder 3. At least two vertical centering clamping rollers 24 are evenly arranged on the inner side of the arc plate 1.

[0019] Before operation, the initial height of the welding torch 5 is adjusted using the lifting and adjusting mechanism. Then, the horizontal cylinder 4 and the vertical cylinder 10 retract in coordination, moving the welding torch 5 away from the four-jaw chuck 6. The centering clamping cylinder 3 retracts, and the four-jaw chuck 6 drives its jaws to open. A flange is then placed on the top inner side of the jaws, and the jaws clamp the flange. A pipe is then inserted into the inner hole of the flange, with the bottom end face of the pipe supported on the top inner side of the jaws. The centering clamping cylinder 3 extends, and the centering clamping roller 24 clamps the pipe. When the centering clamping roller 24 clamps the pipe... Afterwards, the pipe and flange are coaxial. Then, the horizontal cylinder 4 and the vertical cylinder 10 extend to move the welding torch 5 to the welding position. The welding torch 5 then performs spot welding. After the spot welding is completed, the rotary motor 19 starts, driving the four-jaw chuck 6 to rotate. At this time, the welding torch 5 starts to perform circumferential sealing welding at the connection between the pipe and the flange. After the welding is completed, the horizontal cylinder 4 and the vertical cylinder 10 retract to their original positions. The centering clamping cylinder 3 retracts, the centering clamping roller 24 releases the pipe, and the four-jaw chuck 6 releases the flange. Then, the flange and pipe can be removed.

[0020] In Example 2, based on Example 1, a U-shaped connecting plate 2 is fixed to the outer side of the arc plate 1, and the U-shaped connecting plate 2 is fixedly connected to the inner end of the centering clamping cylinder 3.

[0021] The lifting and adjusting mechanism includes a lifting slide rail 14 fixed on a support frame 12 on one side. A lifting slider is mounted on the lifting slide rail 14 and fixed to the outer end of the welding arm 15. A nut is fixed to the welding arm 15, and the nut connects to a lifting screw 13. The lifting screw 13 is rotatably mounted on the support frame 12, and a lifting reduction motor 11 is fixedly connected to the top of the lifting screw 13. Before operation, the lifting reduction motor 11 rotates, causing the lifting screw 13 to rotate, which in turn moves the welding arm 15 up and down, thereby adjusting the initial height of the welding torch 5.

[0022] Adjustable sliders are fixedly connected to the bottom left and right sides of the base 8. The adjustable sliders are connected to the adjustable slide rails 18. A frame 22 is provided below the base 8. The adjustable slide rails 18 are vertically fixed on the frame 22. A screw jack 20 is fixedly installed in the middle of the bottom of the base 8. The screw jack 20 is fixedly installed on the frame 22.

[0023] The screw jack 20 is equipped with a lifting control lever 9, which is rotatably mounted on the frame 22. A handwheel 23 is fixed to the outer end of the lifting control lever 9. Before operation, the handwheel 23 can be turned according to the height of the operator to rotate the lifting control lever 9, thereby controlling the lifting height of the screw jack 20 and adjusting the height of the base 8 and the four-jaw chuck 6.

[0024] The bottom of the frame 22 is equipped with wheels 21.

[0025] A driven gear 7 is fixed to the bottom of the rotating shaft 16. The driven gear 7 meshes with the driving gear 17, and the driving gear 17 is fixedly connected to the rotary motor 19.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0027] In the description of this utility model, the terms "inner", "outer", "longitudinal", "transverse", "upper", "lower", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not require that this utility model must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. An automated flange welding device, comprising a base (8), a rotating shaft (16) rotatably mounted on the base (8), a rotary motor (19) connected to the rotating shaft (16), and a four-jaw chuck (6) fixed to the top of the rotating shaft (16), characterized in that: Support frames (12) are symmetrically arranged on the left and right sides of the four-jaw chuck (6) about its axis. A lifting adjustment mechanism is provided on one side of the support frame (12). The lifting adjustment mechanism is connected to a welding arm (15). A horizontal cylinder (4) is installed on the welding arm (15). A vertical cylinder (10) is connected to the horizontal cylinder (4). A welding torch (5) is fixed at the bottom of the vertical cylinder (10). Centering clamping cylinders (3) are symmetrically arranged on the left and right sides of the upper part of the four-jaw chuck (6) about its axis. An arc plate (1) is connected to the inner end of the centering clamping cylinder (3). At least two vertical centering clamping rollers (24) are evenly arranged on the inner side of the arc plate (1).

2. The automated flange welding equipment according to claim 1, characterized in that: A U-shaped connecting plate (2) is fixed to the outside of the arc plate (1), and the U-shaped connecting plate (2) is fixedly connected to the inner end of the centering clamping cylinder (3).

3. The automated flange welding equipment according to claim 1, characterized in that: The lifting adjustment mechanism includes a lifting slide rail (14) fixed on a support frame (12) on one side. The lifting slide rail (14) is provided with a lifting slider. The lifting slider is fixed to the outer end of the welding arm (15). A nut is fixed on the welding arm (15). The nut is connected to a lifting screw (13). The lifting screw (13) is rotatably mounted on the support frame (12). A lifting reduction motor (11) is fixedly connected to the top of the lifting screw (13).

4. The automated flange welding equipment according to claim 1, characterized in that: Adjustable sliders are fixedly connected to the bottom left and right sides of the base (8), and adjustable sliders are connected to adjustable slide rails (18). A frame (22) is provided below the base (8). The adjustable slide rails (18) are vertically fixed on the frame (22). A screw jack (20) is fixed in the middle of the bottom of the base (8). The screw jack (20) is fixedly installed on the frame (22).

5. The automated flange welding equipment according to claim 4, characterized in that: The screw jack (20) is equipped with a lifting control lever (9), which is rotatably mounted on the frame (22). A handwheel (23) is fixed to the outer end of the lifting control lever (9).

6. The automated flange welding equipment according to claim 4, characterized in that: The bottom of the frame (22) is fitted with wheels (21).

7. The automated flange welding equipment according to claim 1, characterized in that: A driven gear (7) is fixed at the bottom of the rotating shaft (16), and the driven gear (7) meshes with the driving gear (17). The driving gear (17) is fixedly connected to the rotary motor (19).

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