A laser welding positioning structure for stainless steel pipe

Abstract

The utility model discloses a stainless steel pipe laser welding positioning structure, including the supporting plate, the upper surface of supporting plate is fixedly connected with the round groove seat in the symmetry, the upper surface of round groove seat is set up with semicircular groove, the upper surface of round groove seat is set up with the screw hole in the symmetry. When positioning the stainless steel pipe, set up with the round groove seat, place the stainless steel pipe at the round groove of round groove seat, avoid the welding defect that causes the inaccuracy of positioning, can realize quick, accurate positioning through the hydraulic cylinder drive, the clamp has the replacement function simultaneously, can change the auxiliary round groove piece according to different welding demand, and the round groove seat has the rotation, controls the height through the hydraulic cylinder, and the main round groove piece is lifted upward, and the stainless steel pipe is slightly rotated through the round roller setting up on the surface of round groove seat, and the annular welding work is conveniently carried out.

Description

Technical Field

[0001] This utility model relates to the field of laser welding positioning technology, specifically to a laser welding positioning structure for stainless steel pipes. Background Technology

[0002] Laser welding is a welding method that uses a focused laser beam to bombard the workpiece, generating heat for welding. Due to the optical properties of lasers, such as refraction and focusing, laser welding is ideal for welding miniature parts and areas with poor accessibility. Laser welding also features low heat input, minimal weld deformation, and is unaffected by electromagnetic fields. It offers extremely high precision and stability, enabling accurate welding and reducing weld width and height differences. The concentrated heat during laser welding results in a small heat-affected zone, minimizing the impact on the properties of stainless steel pipes. Laser welding is also very fast, significantly improving production efficiency. It has broad application prospects in stainless steel pipe production.

[0003] Positioning during laser welding is crucial, determining both weld quality and efficiency. Specifically, in laser welding, the two components to be welded need to be precisely aligned under the laser beam through positioning. Inaccurate positioning can lead to welding defects such as porosity, cracks, and lack of fusion. Accurate positioning ensures the laser beam is precisely applied to the welding area, thus improving weld quality. Therefore, we propose a positioning structure for laser welding of stainless steel pipes to ensure accurate positioning. Utility Model Content

[0004] The purpose of this invention is to provide a positioning structure for laser welding of stainless steel pipes to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a stainless steel pipe laser welding positioning structure, including a support plate, on the upper surface of the support plate are symmetrically fixedly connected circular groove seats, the upper surface of the circular groove seats is provided with a semi-circular groove, and the upper surface of the circular groove seats is symmetrically provided with screw holes.

[0006] Preferably, it also includes a positioning structure, the lower surface of which is fitted with the screw hole of the circular groove seat and is fixedly connected by bolts.

[0007] Preferably, the positioning structure includes a first frame, the lower surface of which fits against the screw hole of the circular slot seat and is fixedly connected by bolts. A circular hole is provided at the center of the upper surface of the first frame. A second frame is fixedly connected to the upper surface of the first frame. A hydraulic cylinder is fixedly connected to the center of the lower surface of the second frame, and the side wall of the hydraulic cylinder is clearance-fitted with the circular hole of the first frame. A circular hole plate is fixedly connected to the lower surface of the hydraulic cylinder. A main circular slot block is provided on the lower surface of the circular hole plate, and the circular hole plate is fixedly connected to the main circular slot block by bolts.

[0008] Preferably, the side wall of the support plate is fixedly connected to a side plate, and the upper surface of the side plate is provided with an auxiliary circular groove block.

[0009] Preferably, four circular rollers are provided at the semi-circular groove of the circular groove seat, and the two ends of the circular rollers are rotatably connected to the semi-circular groove of the circular groove seat.

[0010] Preferably, the number of screw holes in the circular groove seat is six groups, and the screw holes in the circular groove seat are arranged symmetrically in two vertical rows, with each group consisting of three screw holes.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: When positioning the stainless steel pipe, a circular groove seat is provided. The stainless steel pipe is placed in the circular groove of the circular groove seat, and then positioned by a positioning structure. The positioning structure is driven by a hydraulic cylinder to fit the main circular groove block with the stainless steel pipe, which can ensure the precise position of the stainless steel pipe during the welding process and avoid welding defects caused by inaccurate positioning. The hydraulic cylinder drive can achieve fast and accurate positioning. At the same time, the fixture has a replacement function, and the auxiliary circular groove block can be replaced according to different welding requirements. Moreover, the circular groove seat can rotate, and the height is controlled by the hydraulic cylinder to raise the main circular groove block. The stainless steel pipe is slightly rotated by a circular roller set on the surface of the circular groove seat, which facilitates the ring welding work. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 A 3D detail drawing of the positioning structure;

[0014] In the diagram: 1. Support plate; 2. Circular groove seat; 3. Positioning structure; 31. First frame; 32. Second frame; 33. Hydraulic cylinder; 34. Circular hole plate; 35. Main circular groove block; 4. Circular roller; 5. Side plate; 6. Auxiliary circular groove block. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-2 This utility model provides a positioning structure for laser welding of stainless steel pipe, including a support plate 1, a circular groove seat 2 symmetrically fixedly connected to the upper surface of the support plate 1, a semi-circular groove is opened on the upper surface of the circular groove seat 2, and screw holes are symmetrically opened on the upper surface of the circular groove seat 2.

[0017] It also includes a positioning structure 3, the lower surface of which fits into the screw hole of the circular groove seat 2 and is fixedly connected by bolts.

[0018] The positioning structure 3 includes a first frame 31, the lower surface of which fits against the screw hole of the circular groove seat 2 and is fixedly connected by bolts. A circular hole is provided at the center of the upper surface of the first frame 31. A second frame 32 is fixedly connected to the upper surface of the first frame 31. A hydraulic cylinder 33 is fixedly connected to the center of the lower surface of the second frame 32. The side wall of the hydraulic cylinder 33 is clearance-fitted with the circular hole of the first frame 31. A circular hole plate 34 is fixedly connected to the lower surface of the hydraulic cylinder 33. A main circular groove block 35 is provided on the lower surface of the circular hole plate 34. The circular hole plate 34 is fixedly connected to the main circular groove block 35 by bolts.

[0019] Side plate 5 is fixedly connected to the side wall of support plate 1, and auxiliary circular groove block 6 is provided on the upper surface of side plate 5.

[0020] Four rollers 4 are provided at the semi-circular groove of the circular groove seat 2. The two ends of the rollers 4 are rotatably connected to the semi-circular groove of the circular groove seat 2.

[0021] The number of screw holes in the circular groove seat 2 is six. The screw holes in the circular groove seat 2 are arranged in two vertical rows symmetrically, and each row has three screw holes.

[0022] Working principle: When positioning the stainless steel pipe, the surface of the support plate 1 is symmetrically provided with circular groove seats 2. The stainless steel pipe is placed in the circular groove of the circular groove seat 2, and then the positioning structure 3 is installed. The first frame 31 of the positioning structure 3 fits into the screw hole of the circular groove seat 2 and is fixed by bolts. Moreover, there are multiple sets of screw holes, which can be changed to adapt to stainless steel pipes of different lengths. A second frame 32 is provided on the top of the first frame 31, and a hydraulic cylinder 33 is fixed at the bottom of the second frame 32. The piston rod of the hydraulic cylinder 33 passes through the center of the first frame 31, and at the same time drives the main circular groove block 35 to move. The surface of the groove block 35 is provided with screw holes, which can be fixed to the round hole plate 34 with bolts, and has the function of replacement and disassembly. The stainless steel tube is positioned by the round groove block 35. At the same time, the side plate 5 is provided with auxiliary round groove blocks 6. Different specifications of auxiliary round groove blocks 6 can be selected according to the commonly used stainless steel tube size. There is a gap between the two round groove seats 2. When the stainless steel tube is placed, a certain gap is left at the joint, which facilitates the insertion of the welding gun of the laser welding equipment. The height can be controlled by the hydraulic cylinder 33 to raise the main round groove block 35. The stainless steel tube is slightly rotated by the round roller 4 provided on the surface of the round groove seat 2, which facilitates the ring welding work.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning structure for laser welding of stainless steel pipes, characterized in that: The system includes a support plate (1), on which a circular groove seat (2) is symmetrically fixedly connected to the upper surface. The upper surface of the circular groove seat (2) has a semi-circular groove, and the upper surface of the circular groove seat (2) has symmetrically opened screw holes. It also includes a positioning structure (3), the lower surface of which is fitted to the screw holes of the circular groove seat (2) and fixedly connected by bolts. The positioning structure (3) includes a first frame (31), the lower surface of which is fitted to the screw holes of the circular groove seat (2) and fixedly connected by bolts. A circular hole is provided at the center of the upper surface of the first frame (31). A second frame (32) is fixedly connected to the upper surface of the first frame (31). A hydraulic cylinder (33) is fixedly connected to the center of the lower surface of the second frame (32). The side wall of the hydraulic cylinder (33) is clearance-fitted with the circular hole of the first frame (31). A circular hole plate (34) is fixedly connected to the lower surface of the hydraulic cylinder (33). A main circular groove block (35) is provided on the lower surface of the circular hole plate (34). The circular hole plate (34) is fixedly connected to the main circular groove block (35) by bolts.

2. The stainless steel pipe laser welding positioning structure according to claim 1, characterized in that: The side wall of the support plate (1) is fixedly connected to a side plate (5), and an auxiliary circular groove block (6) is provided on the upper surface of the side plate (5).

3. The stainless steel pipe laser welding positioning structure according to claim 1, characterized in that: The circular groove seat (2) is provided with a circular roller (4) at the semi-circular groove. There are four circular rollers (4), and the two ends of the circular rollers (4) are rotatably connected to the semi-circular groove of the circular groove seat (2).

4. The stainless steel pipe laser welding positioning structure according to claim 1, characterized in that: The circular groove seat (2) has six sets of screw holes. The screw holes of the circular groove seat (2) are arranged in a vertical double row symmetrically, and each set has three screw holes.

Images