Three-way pipe welding workstation

Abstract

The utility model relates to the technical field of three-way pipe welding, and discloses a three-way pipe welding workstation which comprises a bottom plate and a welding robot located on the right side of the bottom plate, and a rotating mechanism driving the bottom plate to rotate is arranged on the lower surface of the bottom plate. A three-jaw chuck body is fixedly connected to the upper surface of the bottom plate, and a center hole is formed in the center of the three-jaw chuck body. The first motor in the rotating mechanism drives the three-jaw chuck body to rotate in the horizontal direction through the rotating disc, the second motor drives the three-jaw chuck body to rotate in the front-back direction through the vertical plate, and therefore the direction of the three-way pipe can be adjusted at will; according to the three-jaw chuck, accurate and comprehensive automatic welding treatment is carried out on the connecting position of a three-way pipe component, when the diameter of a three-way pipe is larger than a center hole in the three-jaw chuck body, the three-way pipe can be placed on the upper surface of the three-jaw chuck body, clamping in the horizontal direction is carried out through the clamping blocks, clamping in the vertical direction is carried out through the pressing blocks, and the applicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of tee pipe welding technology, specifically a tee pipe welding workstation. Background Technology

[0002] In the petroleum, chemical, and power industries, tees are widely used as an important pipe connector in pipeline systems for oil, gas, and water transportation.

[0003] For example, a Chinese patent discloses an automatic welding device for a tee pipe (authorization announcement number CN215658804U). This patented technology uses a rotary clamping mechanism to clamp the tee pipe assembly, and simultaneously, during multi-point welding, it can rotate the tee pipe assembly. By using a clamping mechanism in conjunction with the rotary clamping mechanism, the tee pipe assembly can be clamped, thus fixing it for welding. This eliminates the need for manual fixing and rotating of the tee pipe assembly, resulting in a high degree of automation and improved production efficiency.

[0004] For example, a portable T-pipe auxiliary welding device disclosed in Chinese patent (authorization announcement number CN114905362B) can automatically align the weld seam by setting up a horizontal pipe clamping mechanism and a vertical pipe clamping mechanism, eliminating the need for workers to hold the T-pipe for welding, thus facilitating subsequent welding work.

[0005] The aforementioned existing technologies all have the same drawbacks: they all involve fixing one straight pipe with structure A, fixing another straight pipe with structure B, and finally bringing the two straight pipes together by bringing structures A and B close together before welding. This method of fixing the tee pipe makes it difficult for welding robots to automatically weld the pipe joints according to the set program, resulting in significant interference with the movement path. If manual welding is used, the welding quality cannot be guaranteed, and the welding efficiency is also low. Utility Model Content

[0006] The purpose of this invention is to provide a tee pipe welding workstation to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] The T-shaped pipe welding workstation includes a base plate and a welding robot located on the right side of the base plate. The lower surface of the base plate is provided with a rotating mechanism that drives the base plate to rotate. A three-jaw chuck body is fixedly connected to the upper surface of the base plate. A central hole is opened at the center of the three-jaw chuck body. A boss is fixedly connected inside the central hole. Three jaws are evenly arranged on the upper surface of the three-jaw chuck body outside the central hole.

[0009] As a further embodiment of this utility model: the rotating mechanism includes a support base, a horizontal plate is installed inside the support base, a first motor is fixedly connected to the lower surface of the horizontal plate, a turntable is fixedly connected to the output end of the first motor, vertical plates are fixedly connected to both the left and right ends of the horizontal plate, a support disk is fixedly connected through the right side surface of the support base, a second motor is fixedly connected to the right side surface of the support disk, a bearing sleeve is fixedly connected through the left side surface of the support base, and a support rod is installed inside the bearing sleeve.

[0010] As a further embodiment of this utility model: the gripper includes a gripper body, a clamping block is fixedly connected to one end of the upper surface of the gripper body near the central hole, a pressure block is installed above the clamping block, a waist-shaped countersunk hole is opened inside the pressure block, a first bolt moves through the inside of the waist-shaped countersunk hole, a second bolt is threaded through the inside of the pressure block on one side of the waist-shaped countersunk hole, and a nut is threadedly connected to the outside of the second bolt above the pressure block.

[0011] As a further embodiment of this utility model: the lower surface of the horizontal plate is fixedly connected to the outside of the first motor with a first protective cover, the right side surface of the support base is fixedly connected to the outside of the support plate with a second protective cover, and the left side surface of the support base is fixedly connected to the outside of the bearing sleeve with a third protective cover.

[0012] As a further embodiment of this utility model: the turntable is located above the horizontal plate and is fixed to the lower surface of the base plate; the output end of the second motor is fixed to the right vertical plate; and the right end of the support rod is fixed to the left vertical plate.

[0013] As a further embodiment of this utility model: the main body of the gripper is movably embedded and connected to the upper surface of the three-jaw chuck body, and the lower end of the first bolt is threadedly connected to the inside of the clamping block.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model first assembles the pipes in a tee pipe by spot welding, and then fixes the assembled tee pipe by the jaws in the three-jaw chuck body. The first motor in the rotating mechanism drives the three-jaw chuck body to rotate horizontally through the turntable, and the second motor drives the three-jaw chuck body to rotate back and forth through the vertical plate, thereby arbitrarily adjusting the direction of the tee pipe. With the help of a welding robot, it realizes accurate and comprehensive automatic welding of the connection points of the tee pipe components. Unlike traditional manual welding, it ensures welding quality and improves welding efficiency.

[0016] 2. This utility model, by providing clamping blocks and pressure blocks, allows the tee pipe to be placed on the upper surface of the three-jaw chuck body when the diameter of the tee pipe is larger than the center hole inside the tee pipe body. The clamping blocks clamp the pipe horizontally, and the pressure blocks clamp it vertically, which facilitates the clamping of tee pipes of various specifications and improves its applicability. Attached Figure Description

[0017] Fig. 1 This is a structural schematic diagram of a T-pipe welding workstation;

[0018] Fig. 2 An exploded view of the rotating mechanism in a tee pipe welding workstation;

[0019] Fig. 3 This is a top view of the main body of the three-jaw chuck in the tee pipe welding workstation;

[0020] Fig. 4 This is a schematic diagram of the gripper structure in a T-pipe welding workstation.

[0021] Fig. 5 This is a schematic diagram of the positioning line structure in a T-pipe welding workstation.

[0022] In the diagram: 1. Base plate; 2. Rotating mechanism; 3. Support base; 4. Horizontal plate; 5. First motor; 6. Turntable; 7. First protective cover; 8. Vertical plate; 9. Support plate; 10. Second motor; 11. Second protective cover; 12. Bearing sleeve; 13. Support rod; 14. Third protective cover; 15. Three-jaw chuck body; 16. Center hole; 17. Boss; 18. Gripper; 19. Gripper body; 20. Gripper block; 21. Pressure block; 22. Waist-shaped countersunk hole; 23. First bolt; 24. Second bolt; 25. Nut; 26. Positioning line; 27. Welding robot; 28. T-pipe. Detailed Implementation

[0023] Please see Figs. 1-4 In this embodiment of the utility model, the tee pipe welding workstation includes a base plate 1 and a welding robot 27 located on the right side of the base plate 1;

[0024] A rotating mechanism 2 for driving the base plate 1 to rotate is provided on the lower surface of the base plate 1. The rotating mechanism 2 includes a support base 3. A horizontal plate 4 is installed inside the support base 3. A first motor 5 is fixedly connected to the lower surface of the horizontal plate 4. A turntable 6 is fixedly connected to the output end of the first motor 5. The turntable 6 is located above the horizontal plate 4 and is fixedly connected to the lower surface of the base plate 1. Vertical plates 8 are fixedly connected to both the left and right ends of the horizontal plate 4. A support plate 9 is fixedly connected through the right surface of the support base 3. A second motor 10 is fixedly connected to the right surface of the support plate 9. The output end of the second motor 10 is fixedly connected to the right vertical plate 8. A bearing sleeve 12 is fixedly connected through the left surface of the support base 3. A support rod 13 is installed inside the bearing sleeve 12. The right end of the support rod 13 is fixedly connected to the left vertical plate 8.

[0025] A three-jaw chuck body 15 is fixedly connected to the upper surface of the base plate 1. A central hole 16 is provided at the center of the three-jaw chuck body 15. A boss 17 is fixedly connected inside the central hole 16. Three jaws 18 are evenly arranged on the upper surface of the three-jaw chuck body 15 outside the central hole 16. Each jaw 18 includes a jaw body 19, which is movably embedded and connected to the upper surface of the three-jaw chuck body 15.

[0026] The welding robot 27 is connected to an external control system (such as a PLC system). After the program is set, it runs along the trajectory.

[0027] The three-jaw chuck body 15 includes a disc body, a small bevel gear rotating on the side of the disc body, and a large bevel gear rotating inside the disc body and meshing with the small bevel gear. The upper surface of the large bevel gear is provided with a planar thread, and the jaw body 19 slides on the planar thread. Rotating the small bevel gear can drive the large bevel gear to rotate, thereby driving the three jaw bodies 19 to move towards or away from each other. The above is the existing conventional three-jaw chuck structure, so it will not be described in detail.

[0028] The three-way pipe 28, which is assembled by electric welding, is placed on the boss 17 in the center hole 16 and fixed by three clamping bodies 19;

[0029] The first motor 5 and the second motor 10 are both connected to the forward and reverse circuit and are both equipped with brakes, meaning that the motor shafts cannot rotate after power is cut off.

[0030] The first motor 5 drives the three-jaw chuck body 15 to rotate horizontally via the turntable 6, which facilitates the welding robot 27 to weld the three-way pipe 28.

[0031] The bearing sleeve 12 includes a bearing housing and a bearing located in the bearing housing. The bearing housing and the bearing are rotatable relative to each other. The support rod 13 is fixed in the bearing. Therefore, the support rod 13 and the bearing sleeve 12 are rotatable relative to each other.

[0032] The second motor 10 drives the horizontal plate 4 to rotate in the front and back directions through the vertical plate 8, which facilitates the welding robot 27 to weld the three-way pipe 28.

[0033] Both the first motor 5 and the second motor 10 are connected to an external control system (such as a PLC system) for automated operation.

[0034] exist Fig. 2 In the middle: the lower surface of the horizontal plate 4 is fixed to the outside of the first motor 5 with a first protective cover 7, the right side surface of the support base 3 is fixed to the outside of the support plate 9 with a second protective cover 11, and the left side surface of the support base 3 is fixed to the outside of the bearing sleeve 12 with a third protective cover 14; the protective cover is used to protect the motor, and the surface of the protective cover is provided with strip-shaped holes for the motor to dissipate heat.

[0035] exist Fig. 1 , Figs. 3-5 In the middle: A clamping block 20 is fixedly connected to one end of the upper surface of the gripper body 19 near the center hole 16. A pressure block 21 is installed above the clamping block 20. A waist-shaped countersunk hole 22 is opened inside the pressure block 21. A first bolt 23 moves through the waist-shaped countersunk hole 22. The lower end of the first bolt 23 is threaded to the inside of the clamping block 20. A second bolt 24 is threaded through the pressure block 21 on one side of the waist-shaped countersunk hole 22. A nut 25 is threaded to the outside of the second bolt 24 above the pressure block 21.

[0036] When the diameter of the tee tube 28 is larger than that of the center hole 16, the tee tube 28 can be placed on the upper surface of the three gripper bodies 19 and fixed horizontally by the clamping block 20; the tee tube 28 can be fixed vertically by the pressure block 21.

[0037] The lower end of the second bolt 24 presses against the clamping jaw body 19, which improves the stability of the pressure block 21 and makes it less prone to deflection.

[0038] exist Figs. 1 to 5 In the middle: a positioning line is provided on the upper surface of one of the clamping blocks 20, and a corresponding line is provided on the edge of the three-way pipe 28 to align the position of the three-way pipe 28. By fixing the position of the three-way pipe 28, the welding robot 27 can accurately weld the intersection line between the components of the three-way pipe 28 when the rotating mechanism 2 moves in a predetermined rotation mode.

[0039] The working principle of this utility model is as follows: First, the operator assembles the three components of the three-way pipe 28 together by spot welding. Then, the main pipe of the assembled three-way pipe 28 is placed in the center hole 16 of the three-jaw chuck body 15. The small bevel gear on the side of the three-jaw chuck body 15 is rotated, which drives the large bevel gear to rotate, thereby causing the three-jaw chuck body 15 to move relative to each other until it is in contact with the three-way pipe 28. When the diameter of the three-way pipe 28 is larger than the center hole, the operator can place the three-way pipe 28 on the upper surface of the three three-jaw chuck bodies 15, and use the clamping blocks 20 to fit against the side of the three-way pipe 28 in the horizontal direction. 8. To fix the T-tube 28, loosen the first bolt 23, move the pressure block 21 to the bottom of the T-tube 28, and then tighten the first bolt 23. The T-tube 28 is fixed vertically by the pressure block 21. Then, the welding robot 27 starts welding the three parts of the T-tube 28 according to the set degree. During this process, the first motor 5 drives the three-jaw chuck body 15 to rotate horizontally through the turntable 6, and the second motor 10 drives the horizontal plate 4 to rotate back and forth through the vertical plate 8, thereby driving the T-tube 28 to rotate in any direction, cooperating with the welding robot 27 to perform welding work.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A tee pipe welding workstation, comprising a base plate (1) and a welding robot (27) located on the right side of the base plate (1), characterized in that, The lower surface of the base plate (1) is provided with a rotating mechanism (2) that drives the base plate (1) to rotate; a three-jaw chuck body (15) is fixedly connected to the upper surface of the base plate (1), a central hole (16) is opened at the center of the three-jaw chuck body (15), a boss (17) is fixedly connected inside the central hole (16), and three jaws (18) are evenly arranged on the upper surface of the three-jaw chuck body (15) outside the central hole (16).

2. The tee pipe welding workstation according to claim 1, characterized in that, The rotating mechanism (2) includes a support base (3), a horizontal plate (4) is installed inside the support base (3), a first motor (5) is fixedly connected to the lower surface of the horizontal plate (4), a turntable (6) is fixedly connected to the output end of the first motor (5), vertical plates (8) are fixedly connected to both the left and right ends of the horizontal plate (4), a support disk (9) is fixedly connected through the right side surface of the support base (3), a second motor (10) is fixedly connected to the right side surface of the support disk (9), a bearing sleeve (12) is fixedly connected through the left side surface of the support base (3), and a support rod (13) is installed inside the bearing sleeve (12).

3. The tee pipe welding workstation according to claim 1, characterized in that, The gripper (18) includes a gripper body (19). A gripper block (20) is fixedly connected to one end of the upper surface of the gripper body (19) near the center hole (16). A pressure block (21) is installed above the gripper block (20). A waist-shaped countersunk hole (22) is opened inside the pressure block (21). A first bolt (23) moves through the inside of the waist-shaped countersunk hole (22). A second bolt (24) is threaded through the inside of the pressure block (21) on one side of the waist-shaped countersunk hole (22). A nut (25) is threadedly connected to the outside of the second bolt (24) above the pressure block (21).

4. The tee pipe welding workstation according to claim 2, characterized in that, The lower surface of the horizontal plate (4) is fixed to the outside of the first motor (5) with a first protective cover (7), the right side surface of the support base (3) is fixed to the outside of the support plate (9) with a second protective cover (11), and the left side surface of the support base (3) is fixed to the outside of the bearing sleeve (12) with a third protective cover (14).

5. The tee pipe welding workstation according to claim 2, characterized in that, The turntable (6) is located above the horizontal plate (4) and is fixed to the lower surface of the base plate (1). The output end of the second motor (10) is fixed to the right vertical plate (8), and the right end of the support rod (13) is fixed to the left vertical plate (8).

6. The tee pipe welding workstation according to claim 3, characterized in that, The gripper body (19) is movably embedded in the upper surface of the three-jaw chuck body (15), and the lower end of the first bolt (23) is threaded into the inside of the clamping block (20).

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