High-precision laser bent pipe welding device

Abstract

The utility model discloses a high-precision laser bent pipe welding device which comprises a carrying table, a limiting unit and a clamping unit are arranged on the two sides of the carrying table respectively, a through hole is formed between the limiting unit and the clamping unit, a welding assembly is arranged at the position of the through hole, a limiting groove is formed below the limiting unit and located in the carrying table, and the clamping unit is used for clamping a straight pipe. The limiting unit is used for driving the bent pipe to move along the limiting groove to be in butt joint with the straight pipe; the welding assembly comprises a rotating unit, a mounting ring and a laser welding gun, the mounting ring is arranged at the through hole, the laser welding gun and the rotating unit are arranged on the two sides of the mounting ring correspondingly, and the rotating unit is used for driving the mounting ring and the laser welding gun to rotate; according to the high-precision laser bent pipe welding device, the limiting unit and the clamping unit are adopted, a bent pipe and a straight pipe can be rapidly fixed and aligned, a seam is welded through the welding assembly and the automatic rotating laser welding gun, and the welding efficiency and the welding precision are greatly improved.

Description

Technical Field

[0001] The utility model relates to laser welding technology, in particular to a high-precision laser pipe bending welding device. Background Art

[0002] Laser welding is an efficient and precise welding method that uses a high energy density laser beam as a heat source. Laser welding is one of the important aspects of the application of laser material processing technology;

[0003] The existing laser welding method for bent pipes generally involves first fixing the bent pipe and straight pipe, aligning the bent pipe and straight pipe, and then manually holding a handheld laser welding gun to align the joint for 360-degree welding. However, manual welding has poor welding efficiency, and the welding accuracy cannot be controlled, resulting in a low yield rate, and rework and re-welding are often required. Utility Model Content

[0004] In order to solve the defects of the above-mentioned prior art, the utility model provides a high-precision laser pipe bending welding device, which can quickly fix and align bent pipes and straight pipes, and automatically rotate the welding gun to weld the seams, greatly improving the welding efficiency and welding accuracy.

[0005] In order to achieve the above technical objectives, the utility model adopts the following technical solutions: a high-precision laser pipe bending welding device, comprising a carrier, a limiting unit and a clamping unit are respectively provided on both sides of the carrier, a through hole is provided between the limiting unit and the clamping unit, a welding assembly is provided at the through hole, a limiting groove is provided below the limiting unit, the limiting groove is located on the carrier, the clamping unit is used to clamp the straight pipe, the limiting groove is used to limit the bent pipe, and the limiting unit is used to drive the bent pipe to move along the limiting groove to dock with the straight pipe;

[0006] The welding assembly includes a rotating unit, a mounting ring and a laser welding gun. The mounting ring is arranged at the through hole. The laser welding gun and the rotating unit are respectively arranged on both sides of the mounting ring. The rotating unit is used to drive the mounting ring and the laser welding gun to rotate.

[0007] Preferably, the limiting unit comprises a limiting motor and a limiting plate, the limiting motor is vertically arranged on the carrier, the limiting plate is drivingly connected to the output shaft of the limiting motor, and the limiting plate pushes the bent pipe to move along the limiting groove.

[0008] Preferably, the clamping unit includes a clamping motor, a screw and two clamping plates. The clamping motor is fixed to the carrier and drives the screw to rotate. The two clamping plates are respectively threadedly engaged with the two ends of the screw and move towards or relative to each other as the screw rotates. Guide rods are provided at both ends of the screw, and the guide rods pass through the clamping plates to guide the movement of the clamping plates.

[0009] Preferably, clamping blocks are provided at both ends of the clamping plate facing the straight tube, and the clamping blocks are in contact with the outer wall of the straight tube.

[0010] Preferably, the rotating unit includes a ring gear, a gear and a rotating motor, the rotating motor is fixed to the carrier, the ring gear is coaxially fixed with the mounting ring, the gear is driven by the rotating motor to rotate and meshes with the ring gear, and the carrier is provided with a plurality of auxiliary wheels, the auxiliary wheels mesh with the gears below or on one side relative to the gears.

[0011] Preferably, the limiting groove is arc-shaped, and the limiting groove is contoured with the bent pipe.

[0012] In summary, the utility model has achieved the following technical effects:

[0013] The high-precision laser pipe bending welding device of the utility model adopts a limit unit and a clamping unit, which can quickly fix and align the bent pipe and the straight pipe, and automatically rotate the laser welding gun through the welding assembly to weld the seam, greatly improving the welding efficiency and welding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the high-precision laser pipe bending welding device of the utility model;

[0015] Figure 2 It is a structural schematic diagram of a clamping unit of a high-precision laser pipe bending welding device of the utility model;

[0016] Figure 3 It is a structural schematic diagram of a rotating unit of a high-precision laser pipe bending welding device of the utility model;

[0017] Explanation of the reference numerals in the drawings in the specification: 1. Carrier; 2. Limiting groove; 3. Limiting motor; 4. Limiting plate; 5. Clamping unit; 51. Clamping motor; 52. Screw; 53. Clamping plate; 54. Clamping block; 55. Guide rod; 6. Through hole; 7. Rotating unit; 71. Ring gear; 72. Gear; 73. Rotating motor; 74. Auxiliary wheel; 8. Mounting ring; 9. Laser welding gun; 10. Straight pipe; 11. Bend pipe. DETAILED DESCRIPTION

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

[0019] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0024] Embodiment 1:

[0025] like Figure 1As shown, a high-precision laser bending tube 11 welding device comprises a carrier 1, a limiting unit and a clamping unit 5 are respectively arranged on both sides of the carrier 1, a through hole 6 is arranged between the limiting unit and the clamping unit 5, a welding assembly is arranged at the through hole 6, a limiting groove 2 is arranged below the limiting unit, the limiting groove 2 is located at the carrier 1, the clamping unit 5 is used to clamp the straight tube 10, the limiting groove 2 is used to limit the bending tube 11, and the limiting unit is used to drive the bending tube 11 to move along the limiting groove 2 to dock with the straight tube 10; the welding assembly comprises a rotating unit 7, a mounting ring 8 and a laser welding gun 9, the mounting ring 8 is arranged at the through hole 6, the laser welding gun 9 and the rotating unit 7 are respectively arranged on both sides of the mounting ring 8, and the rotating unit 7 is used to drive the mounting ring 8 and the laser welding gun 9 to rotate; the limiting groove 2 is arc-shaped, and the limiting groove 2 is contoured with the bending tube 11.

[0026] The center of the limiting groove 2 and the center of the central axis of the curved pipe 11 are both the limiting motor 3.

[0027] The high-precision laser pipe bending 11 welding device of this embodiment adopts a limit unit and a clamping unit 5, which can quickly fix and align the pipe bending 11 and the straight pipe 10, and automatically rotate the laser welding gun 9 through the welding assembly to weld the seam, greatly improving the welding efficiency and welding accuracy.

[0028] The limiting unit includes a limiting motor 3 and a limiting plate 4 . The limiting motor 3 is vertically arranged on the carrier 1 . The limiting plate 4 is drivingly connected to the output shaft of the limiting motor 3 . The limiting plate 4 pushes the bent pipe 11 to move along the limiting groove 2 .

[0029] like Figure 2 As shown, the clamping unit 5 includes a clamping motor 51, a screw rod 52 and two clamping plates 53. The clamping motor 51 is fixed to the carrier 1 and drives the screw rod 52 to rotate. The two clamping plates 53 are respectively threadedly matched with the two ends of the screw rod 52 and move towards or relative to each other as the screw rod 52 rotates. Guide rods 55 are provided at both ends of the screw rod 52. The guide rods 55 pass through the clamping plates 53 to guide the movement of the clamping plates 53; clamping blocks 54 are provided at both ends of the clamping plates 53 facing the straight tube 10, and the clamping blocks 54 are in contact with the outer wall of the straight tube 10.

[0030] like Figure 3 As shown, the rotating unit 7 includes a ring gear 71, a gear 72 and a rotating motor 73. The rotating motor 73 is fixed to the carrier 1. The ring gear 71 is coaxially fixed with the mounting ring 8. The gear 72 is driven by the rotating motor 73 to rotate and mesh with the ring gear 71. The carrier 1 is provided with a plurality of auxiliary wheels 74, which mesh with the gear 72 below or on the side relative to the gear 72.

[0031] Working principle: First, load the straight tube 10 so that the welding end is aligned with the laser welding gun 9, and fix the straight tube 10 by the clamping unit 5. Then load the bent tube 11. The limiting unit pushes the bent tube 11 to move along the limiting groove 2 until the end of the bent tube 11 is aligned with the straight tube 10. The welding assembly works, rotates the laser welding gun 9, and welds the seam.

[0032] The above description is only a preferred implementation mode of the present invention, and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A high-precision laser pipe bending welding device, characterized in that: It comprises a platform, a limiting unit and a clamping unit are respectively arranged on both sides of the platform, a through hole is arranged between the limiting unit and the clamping unit, a welding assembly is arranged at the through hole, a limiting groove is arranged below the limiting unit, the limiting groove is located on the platform, the clamping unit is used to clamp the straight pipe, the limiting groove is used to limit the bent pipe, and the limiting unit is used to drive the bent pipe to move along the limiting groove to dock with the straight pipe; The welding assembly includes a rotating unit, a mounting ring and a laser welding gun. The mounting ring is arranged at the through hole. The laser welding gun and the rotating unit are respectively arranged on both sides of the mounting ring. The rotating unit is used to drive the mounting ring and the laser welding gun to rotate.

2. A high-precision laser pipe bending welding device according to claim 1, characterized in that: The limiting unit comprises a limiting motor and a limiting plate. The limiting motor is vertically arranged on the carrier. The limiting plate is drivingly connected to the output shaft of the limiting motor. The limiting plate pushes the bent pipe to move along the limiting groove.

3. The high-precision laser pipe bending welding device according to claim 1 is characterized in that: The clamping unit includes a clamping motor, a screw and two clamping plates. The clamping motor is fixed to the carrier and drives the screw to rotate. The two clamping plates are respectively threadedly matched with the two ends of the screw and move towards or relative to each other as the screw rotates. Guide rods are provided at both ends of the screw, and the guide rods pass through the clamping plates to guide the movement of the clamping plates.

4. A high-precision laser pipe bending welding device according to claim 3, characterized in that: Clamping blocks are arranged at both ends of the clamping plate facing the straight tube, and the clamping blocks are fitted with the outer wall of the straight tube.

5. The high-precision laser pipe bending welding device according to claim 1, characterized in that: The rotating unit includes a gear ring, a gear and a rotating motor. The rotating motor is fixed to the carrier. The gear ring is coaxially fixed to the mounting ring. The gear is driven by the rotating motor to rotate and mesh with the gear ring. The carrier is provided with a plurality of auxiliary wheels, which mesh with the gear below or on one side relative to the gear.

6. The high-precision laser pipe bending welding device according to claim 1, characterized in that: The limiting groove is arc-shaped and conforms to the curved pipe.

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