Anti-deviation intelligent welding equipment for metal parts

Abstract

Anti-deviation intelligent welding equipment for metal parts belongs to the technical field of metal part welding and comprises a base, a fixing plate and a metal pipe body, supporting frames are symmetrically and fixedly connected to the top of the base at equal intervals, and supporting rings are rotationally connected to the sides, close to each other, of the two supporting frames in each set. During welding, a laser head focuses a light beam to heat and melt a seam to form a molten pool, metallurgical bonding is achieved, aiming at an annular seam, the laser head synchronously moves along with rotation of a pipe body, parameters are adjusted to guarantee welding seam forming, meanwhile, a welding path is formed through a symmetrical attaching rod and a fixing cylinder, the laser head dynamically moves, and the welding position is kept at the center of the seam; and the rotating handle can be rotated to drive the scraping plate to scrape an oxide layer and burrs on the surface of the joint, laser energy waste is avoided, efficiency is guaranteed, in addition, the protruding block is matched with the reciprocating rod, the air blowing cylinder cleans dust and residues on the joint, and welding quality and cleaning efficiency are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of metal part welding, and particularly to an intelligent welding device for metal parts that prevents deviation. Background Art

[0002] The metal products industry includes the manufacturing of structural metal products, metal tools, containers and metal packaging containers, stainless steel and similar daily-use metal products, etc. Currently, metal pipe fittings are widely used in various fields. They are a general term for components that play roles such as connection, control, direction change, flow diversion, sealing, and support in a pipeline system. When metal pipe fittings are used, they often need to be spliced, and a welding device is required during this process to weld different metal pipe fittings together. Laser welding devices have the advantages of fast welding speed, narrow weld seams, small heat-affected zones, small welding deformation, and high welding quality, making laser welding a leader in the field of metal pipe fitting welding.

[0003] For example, Chinese patent "CN118060756A" discloses a welding device for metal pipe fitting processing. The welding device slides along the outer side of the connecting ring two by means of balls sliding in the limiting groove and under the connection action of the guide rod and the inserting rod, so as to realize the welding of the circumferential joint surface position of the metal pipe fitting, which is convenient and fast.

[0004] However, the following problems still exist in the actual implementation of the above patent:

[0005] When laser welding is used to weld the joint of two metal pipe fittings, since the laser weld seam is narrow, it is necessary to ensure the accuracy of the welding position during the welding process. However, the cross-section of the joint of the two pipe fittings is not completely smooth, that is, after the two metal pipe fittings are fitted together, the circumferential joint surface is not straight. Therefore, during the welding process of a conventional fixed-angle circumferential circle, the laser focus deviates to the base material rather than the center of the joint, easily resulting in welding position deviation, causing the welding position not to completely cover the joint surface, and affecting the welding quality. Summary of the Invention

[0006] The purpose of the present invention is to solve the problem that in the conventional fixed-angle circumferential welding in the prior art, the laser focus easily deviates to the base material, resulting in incomplete coverage of the joint surface, and to propose an intelligent welding device for metal parts that prevents deviation.

[0007] To achieve the above purpose, the present invention adopts the following technical solutions:

[0008] An intelligent welding device for metal parts to prevent offset, comprising a base, a fixing plate, and a metal pipe body. The top of the base is symmetrically and fixedly connected with support frames at equal distances. On the closer sides of each group of two support frames, there is a support ring rotatably connected. On the outer walls of the three support rings, there are drive gear teeth fixedly connected at equal distances. The top of the base is fixedly installed with a drive motor, and one end of the output shaft of the drive motor is fixedly connected with a shaft rod. On the outer wall of the shaft rod, there are drive gears fixedly connected at equal distances corresponding to the support rings. The fixing plate is arranged inside the middle support ring;

[0009] Inside the inner wall of the middle support ring, there is a dynamic adjustment component to be able to adaptively move according to the seam offset situation during the laser welding process and keep the laser welding position at the center of the seam;

[0010] On one side of the fixing plate, there is a welding surface scraping component to be able to scrape off the surface oxide layer and cutting burrs at the seam position during the laser welding process, avoiding waste caused by multiple reflections and dissipation of laser energy on the surface;

[0011] On the other side of the fixing plate, there is a weld seam blowing component to be able to spray and blow along the tangent direction of the seam during the laser welding process to clean the dust and residues inside the seam and on the two side surfaces of the seam.

[0012] Furthermore, the dynamic adjustment component includes a fixed cylinder, and the outer wall of the fixed cylinder is slidably connected with an auxiliary plate. One end of the auxiliary plate is fixedly connected with a support cross plate, and the two ends of the support cross plate are fixedly connected to the same side wall of the two middle support frames. The bottom inner wall of the fixed cylinder is slidably connected with an adjusting rod, and the bottom of the adjusting rod is fixedly connected with a pin. The outer wall of the fixed cylinder is rotatably connected with a connecting plate, and the other end of the connecting plate is fixedly connected with a guiding column inside. The bottom of the guiding column is fixedly installed with a laser tube body, and a laser head is installed at the bottom of the laser tube body.

[0013] Furthermore, on the side wall of the middle support ring, there are sliding holes penetrating at equal distances. The inner walls of several sliding holes are all slidably connected with cross bars in a fitting manner, and both ends of the cross bars extend to the outside of the middle support ring. On the outer walls of both ends of the cross bars, there are fitting rods fixedly connected corresponding to the fixed cylinder. The closer ends of the two fitting rods are in contact with the top outer wall of the fitting rod. On the inner wall of the middle support ring, there are limiting frames symmetrically fixedly connected corresponding to the cross bars, and the two inner walls of the limiting frames are in sliding contact with the two outer walls of the cross bars. Inside the bottom of the limiting frame, there is a sliding rod slidably connected, and the top of the sliding rod is fixedly connected with a pressing block.

[0014] Furthermore, a first spring is fixedly connected to the bottom of the extrusion block, and the bottom of the first spring is fixedly connected to the inner wall of the bottom side of the limiting frame. The extrusion block is arranged at the bottom of the cross bar by being extruded by the first spring. The bottoms of the two slide bars are both fixedly connected with a cylinder body, and the outer shape of the cylinder body is cylindrical. The top of the fixed cylinder is fixedly connected with a mounting block, and a touch plate is fixedly connected to the top of the mounting block corresponding to the cylinder body. Extension grooves are formed at the ends of the two cylinder bodies close to each other, and a second spring is fixedly connected to the inner wall of the extension groove. The ends of the two second springs close to each other are both fixedly connected with an extension block. A rotating handle is threadedly installed on the outer wall of the fixed cylinder.

[0015] Furthermore, reset blocks are fixedly connected to the outer walls on both sides of one of the middle support frames. The upper surfaces of the two reset blocks are both inclined planes corresponding to the cross bar. The end of the shaft rod away from the driving motor is rotatably connected to a support seat, and the bottom of the support seat is fixedly connected to the top of the base. Electric push rods are evenly installed at equal intervals on the inner walls of the two support rings on both sides. The output rod of the electric push rod is fixedly connected with a clamping block corresponding to the metal pipe body. The clamping block is V-shaped. Sliding rings are symmetrically fixedly connected to the outer walls of the three support rings, and the outer walls of the sliding rings are in sliding fit with the inner walls of the support frames. The fixing plate is fixedly connected to the outer wall of the bottom side of the adjusting rod.

[0016] Furthermore, the welding surface scraping component includes a scraping plate. A rotating rod is fixedly connected to the inner wall of one end of the scraping plate facing the fixing plate. Fixed seats are symmetrically fixedly connected to the outer wall of the fixing plate facing the scraping plate, and the outer walls of the rotating rods are rotatably connected to the inner walls of the two fixed seats. A screw rod is rotatably connected to the top of the fixing plate, and a rotating handle is fixedly connected to the top of the screw rod. A pressing rod is threadedly connected to the outer wall of the screw rod corresponding to the scraping plate. Limiting rods are symmetrically fixedly connected to the top of the fixing plate corresponding to the pressing rod. The outer walls of the two limiting rods close to each other are in sliding fit with the outer walls of both sides of the pressing rod. Torsion springs are fixedly connected to the outer walls of both ends of the rotating rod, and the ends of the two torsion springs close to each other are respectively fixedly connected to the outer walls of the two fixed seats away from each other.

[0017] Furthermore, the weld blowing component includes an installation cylinder. The outer walls of the two installation cylinders are symmetrically installed inside the fixing plate. A piston is slidably connected to the inner wall of the installation cylinder, and a reciprocating rod is fixedly connected to the bottom of the piston. The bottom of the reciprocating rod extends to the outside of the installation cylinder, and an auxiliary disc is fixedly connected to the outer wall of the extended end of the reciprocating rod. A third spring is fixedly connected to the top of the auxiliary disc, and the top of the third spring is fixedly connected to the bottom outer wall of the installation cylinder. Two groups of support blocks are symmetrically fixedly connected to the bottom of the fixing plate. A rotating rod is rotatably connected to the side of each group of two support blocks close to each other, and rollers are symmetrically fixedly connected to the outer wall of the rotating rod. A convex block is fixedly connected to the outer wall of the rotating rod corresponding to the reciprocating rod.

[0018] Furthermore, on the outer walls of the top sides of the two mounting cylinders, there are blow pipes fixedly connected, and at the other end of the blow pipe, there is a blowing cylinder fixedly connected. On the outer wall of the fixing plate away from the scraper, there is a limiting block fixedly connected, and the outer wall of the blowing cylinder is fixedly connected to the inner wall of the limiting block. On the tops of the two mounting cylinders, there are intake pipes fixedly connected.

[0019] Compared with the prior art, the above solution has the following beneficial effects:

[0020] 1. When welding metal pipe fittings, the laser head, through the fiber laser in the laser tube body, focuses the laser beam on the joint surface, causing the temperature at the joint of the two metal pipe bodies to rise rapidly after absorbing the laser energy. When reaching the material melting point, the surface metal starts to melt, and the melted surface metal forms a local molten pool. The molten pool continuously transfers energy to the inside of the metal pipe body through heat conduction, realizing the metallurgical bonding of the molten metal and the adjacent materials. For the annular joint of the pipe fittings, during the rotation of the metal pipe body, the laser head will move synchronously along the axis of the pipe body relative to the opposite side, ensuring that the laser beam always acts perpendicular to the center line of the joint. By adjusting the defocus amount and welding speed, a continuous and uniform weld formation is achieved.

[0021] 2. When laser welding two metal pipe fittings, during the laser welding process, a welding path can be formed through the cooperation of several symmetrically arranged fitting rods and the fixed cylinder. When the pin moves in the joint, it can move slightly left and right according to the joint offset situation, thereby synchronously adjusting the left and right positions of multiple symmetrically arranged fitting rods, enabling the subsequent guide posts to drive the laser head to move slightly dynamically relative to the joint, always keeping the laser welding position at the center of the joint, which is beneficial to ensuring the welding accuracy of this device.

[0022] 3. When laser welding two metal pipe fittings, one end of the scraper can be driven to fit and cover the joint and its two sides by rotating the turning handle, so that during the welding process, the surface oxide layer and cutting burrs at the joint position can be scraped off, ensuring the smoothness of the joint position, and avoiding the waste caused by the combined action of the oxide layer reflection and burr scattering, resulting in multiple reflections and dissipation of laser energy on the surface, which is beneficial to ensuring the welding efficiency of this device.

[0023] 4. When laser welding two metal pipe fittings, through the cooperation of the convex block and the reciprocating rod, the blowing cylinder can be used to spray and blow along the tangent direction of the joint to clean the dust and residues inside the joint and on the two side surfaces of the joint, which is beneficial to ensuring the welding quality of this device. At the same time, through two groups of convex blocks arranged in opposite directions, continuous cleaning and purging are formed, ensuring the cleaning efficiency of the joint position. Description of the Drawings

[0024] Figure 1 Schematic diagram of the overall three-dimensional structure of an intelligent welding device for metal parts with anti-offset proposed by the present invention;

[0025] Figure 2 Schematic diagram of the right-side three-dimensional structure of a partial structure of an intelligent welding device for metal parts with anti-offset proposed by the present invention;

[0026] Figure 3 Schematic diagram of the three-dimensional structure inside the middle support ring of an intelligent welding device for metal parts with anti-offset proposed by the present invention;

[0027] Figure 4 Schematic diagram of the three-dimensional structure of the connection relationship between the fixed cylinder and the guide post of an intelligent welding device for metal parts with anti-offset proposed by the present invention;

[0028] Figure 5 Schematic diagram of the three-dimensional structure of the connection relationship between the fixed cylinder and the cylinder body of an intelligent welding device for metal parts with anti-offset proposed by the present invention;

[0029] Figure 6 Schematic diagram of the three-dimensional structure of the connection relationship between the cylinder body and the extension block of an intelligent welding device for metal parts with anti-offset proposed by the present invention;

[0030] Figure 7 Schematic diagram of the three-dimensional structure of the connection relationship between the scraper and the fixed plate of an intelligent welding device for metal parts with anti-offset proposed by the present invention;

[0031] Figure 8 Schematic diagram of the transmission relationship between the installation cylinder and the air blowing cylinder of an intelligent welding device for metal parts with anti-offset proposed by the present invention.

[0032] In the figure: 1, base; 2, support frame; 3, support ring; 4, drive gear teeth; 5, drive motor; 6, shaft rod; 7, drive gear; 11, support cross plate; 12, reset block; 13, support seat; 14, electric push rod; 15, clamping block; 16, sliding ring; 17, fixing plate; 18, metal tube body; 19, sliding hole; 8, dynamic adjustment component; 801, fixing cylinder; 802, auxiliary plate; 803, adjusting rod; 804, insertion pin; 805, connecting plate; 806, guiding column; 807, laser tube body; 808, laser head; 809, cross bar; 810, fitting rod; 811, limiting frame; 812, sliding rod; 813, extrusion block; 814, spring one; 815, cylinder body; 816, mounting block; 817, touching plate; 818, extension groove; 819, spring two; 820, extension block; 821, rotating handle; 9, welding surface scraping component; 901, scraping plate; 902, rotating rod; 903, fixing seat; 904, screw rod; 905, rotating handle; 906, pressing rod; 907, limiting rod; 908, torsion spring; 10, weld blowing component; 1001, mounting cylinder; 1002, piston; 1003, reciprocating rod; 1004, auxiliary disc; 1005, spring three; 1006, support block; 1007, rotating rod; 1008, roller; 1009, convex block; 1010, air blowing pipe; 1011, air blowing cylinder; 1012, limiting block; 1013, air inlet pipe. Specific embodiments

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "top surface", "bottom surface", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish an entity or operation from another entity or operation, and do not require or imply any actual relationship, order or relative importance between these entities or operations.

[0035] Example 1, refer to Figures 1-8, An intelligent welding device for metal parts to prevent deviation, including a base 1, a fixing plate 17, and a metal pipe body 18. On the top of the base 1, support frames 2 are symmetrically and fixedly connected at equal distances. On the adjacent sides of each group of two support frames 2, a support ring 3 is rotatably connected. On the outer walls of the three support rings 3, drive gear teeth 4 are fixedly connected at equal distances. On the top of the base 1, a drive motor 5 is fixedly installed, and one end of the output shaft of the drive motor 5 is fixedly connected to a shaft rod 6. On the outer wall of the shaft rod 6, drive gears 7 are fixedly connected at equal distances corresponding to the support rings 3. The fixing plate 17 is arranged inside the middle support ring 3;

[0036] In the embodiment, a dynamic adjustment component 8 is arranged on the inner wall of the middle support ring 3. The dynamic adjustment component 8 includes a fixing cylinder 801, and an auxiliary plate 802 is slidably connected to the outer wall of the fixing cylinder 801. One end of the auxiliary plate 802 is fixedly connected to a support cross plate 11, and both ends of the support cross plate 11 are fixedly connected to the same side wall of the two middle support frames 2. An adjusting rod 803 is slidably connected to the bottom inner wall of the fixing cylinder 801, and a pin 804 is fixedly connected to the bottom of the adjusting rod 803. A connecting plate 805 is rotatably connected to the outer wall of the fixing cylinder 801, and a guiding column 806 is fixedly connected to the other end inside the connecting plate 805. A laser tube body 807 is fixedly installed at the bottom of the guiding column 806, and a laser head 808 is installed at the bottom of the laser tube body 807;

[0037] Thus, when the device is in use, first, the two metal pipe bodies 18 are respectively inserted and combined from the inner sides of the two side support rings 3. Then, electric push rods 14 are equally and fixedly installed at equal distances on the inner walls of the two side support rings 3. The output rods of the electric push rods 14 are fixedly connected to clamping blocks 15 corresponding to the metal pipe bodies 18. The clamping blocks 15 are V-shaped, so that the three clamping blocks 15 can be driven by the electric push rods 14 to move synchronously towards the center, that is, centering clamping, so that the joint ends of the two metal pipe fittings are located at the center position of the middle support ring 3;

[0038] Then, after the clamping is completed, on the adjacent sides of each group of two support frames 2, a support ring 3 is rotatably connected. On the outer walls of the three support rings 3, drive gear teeth 4 are fixedly connected at equal distances. On the top of the base 1, a drive motor 5 is fixedly installed, and one end of the output shaft of the drive motor 5 is fixedly connected to a shaft rod 6. On the outer wall of the shaft rod 6, drive gears 7 are fixedly connected at equal distances corresponding to the support rings 3. On the outer walls of the three support rings 3, sliding rings 16 are symmetrically and fixedly connected, and the outer walls of the sliding rings 16 are in sliding fit with the inner walls of the support frames 2. One end of the shaft rod 6 away from the drive motor 5 is rotatably connected to a support seat 13. Thus, the drive motor 5 can drive the shaft rod 6 to rotate, so as to synchronously drive the three support rings 3 to rotate through the three drive gears 7. Thus, the two metal pipe bodies 18 can be synchronously driven to rotate by the two side support rings 3, and a plurality of symmetric fitting rods 810 can be driven to move in a circle by the middle support ring 3;

[0039] During this process, the laser head 808 focuses the laser beam on the seam surface through the fiber laser in the laser tube body 807, causing the temperature at the seam of the two metal tube bodies 18 to rise rapidly after absorbing the laser energy. When the material melting point is reached, the surface metal begins to melt, and the melted metal on the surface forms a local molten pool. The molten pool continuously transfers energy to the inside of the metal tube body 18 through heat conduction, realizing the metallurgical bonding between the molten metal and the adjacent materials. For the annular seam of the pipe fitting, during the rotation of the metal tube body 18, the laser head 808 will move synchronously along the tube rotation axis relatively, ensuring that the laser beam always acts vertically on the seam center line. By adjusting the defocus amount and welding speed, a continuous and uniform weld formation is achieved;

[0040] Next, in order to ensure that the laser welding position is accurately at the center of the seam, an adjusting rod 803 is slidably connected to the inner wall of the bottom side of the fixing cylinder 801, and a pin 804 is fixedly connected to the bottom of the adjusting rod 803. And a rotating handle 821 is threadedly installed on the outer wall of the fixing cylinder 801, so that the height of the adjusting rod 803 can be adjusted, enabling the pin 804 at its bottom to be inserted into the center of the seam of the two metal tube bodies 18, and the position of the adjusting rod 803 is fixed by the rotating handle 821. When the two metal tube bodies 18 rotate synchronously, the horizontal position of the pin 804 can be synchronously adjusted according to the offset situation of the seam;

[0041] Next, an auxiliary plate 802 is slidably connected to the outer wall of the fixing cylinder 801. One end of the auxiliary plate 802 is fixedly connected to a supporting cross plate 11, and both ends of the supporting cross plate 11 are fixedly connected to the same side wall of the two middle supporting frames 2. Thus, the height of the fixing cylinder 801 can be fixed through the auxiliary plate 802, and the fixing cylinder 801 is allowed to move horizontally inside the auxiliary plate 802. Thus, when the pin 804 moves horizontally, the fixing cylinder 801 will be driven horizontally synchronously;

[0042] Next, a cross bar 809 is slidably and fittingly connected to the inner walls of a plurality of sliding holes 19, and both ends of the cross bar 809 extend to the outside of the middle supporting ring 3. Fitting rods 810 are fixedly connected to the outer walls of both ends of the cross bar 809 corresponding to the fixing cylinder 801. One ends of the two fitting rods 810 close to each other are in contact with the outer wall of the top end of the fitting rod 810. Thus, during the normal rotation process, a plurality of symmetric fitting rods 810 will slide in contact from the end of the fixing cylinder 801, thus forming a welding path. When the seam position deviates, at this time the pin 804 will move horizontally relatively, causing the fixing cylinder 801 to drive the fitting rods 810 horizontally, thereby relatively changing the entire welding path;

[0043] Next, a connecting plate 805 is rotatably connected to the outer wall of the fixed cylinder 801, and a guide post 806 is fixedly connected to the inside of the other end of the connecting plate 805. A laser tube body 807 is fixedly installed at the bottom of the guide post 806, and a laser head 808 is installed at the bottom of the laser tube body 807. Thus, under normal circumstances, the guide post 806 will also be within the welding path formed by several fitting rods 810. When the fixed cylinder 801 changes the welding path, at the subsequent corresponding offset joint, a certain fitting rod 810 after the offset will synchronously drive the guide post 806 to move in a biased manner, thereby achieving the ability to slightly move left and right according to the seam offset situation, and synchronously adjusting the left and right positions of multiple symmetric fitting rods 810, so that the subsequent guide post 806 can synchronously drive the laser head 808 to perform dynamic slight movement with respect to the seam, always keeping the laser welding position at the center of the seam, which is beneficial to ensuring the welding accuracy of the device;

[0044] Furthermore, in order to ensure that the fitting rod 810 can maintain its position after being displaced by the fixed cylinder 801 and avoid deviation and inability to accurately drive the guide post 806 to the offset position, limiting frames 811 are symmetrically and fixedly connected to the inner wall of the middle support ring 3 corresponding to the cross bar 809. The inner walls of both sides of the limiting frame 811 are in sliding fit with the outer walls of both sides of the cross bar 809. A sliding rod 812 is slidably connected to the inner part of the bottom side of the limiting frame 811, and a pressing block 813 is fixedly connected to the top of the sliding rod 812. A first spring 814 is fixedly connected to the bottom of the pressing block 813, and the bottom of the first spring 814 is fixedly connected to the inner wall of the bottom side of the limiting frame 811. The pressing block 813 is pressed against the bottom of the cross bar 809 through the first spring 814. Thus, under normal circumstances, the first spring 814 drives the pressing block 813 to press and fix the cross bar 809, thereby maintaining the position of the fitting rod 810;

[0045] In order to reduce the horizontal movement resistance of the pin 804, that is, to avoid the pin 804 having to overcome a large friction resistance under the elastic force restriction of the spring 1 814, the bottoms of the two sliding rods 812 are fixedly connected with a cylinder 815, and the appearance of the cylinder 815 is cylindrical, and the top of the fixed cylinder 801 is fixedly connected with a mounting block 816, and the top of the mounting block 816 is fixedly connected with a touch plate 817 corresponding to the cylinder 815, so that before a certain fitting rod 810 contacts the top side end of the fixed cylinder 801, the cylinder 815 will first contact the touch plate 817 , so that the outer shape of the cylinder 815 is cylindrical, so that the touch plate 817 can squeeze and guide the cylinder 815 to the bottom position of the touch plate 817, that is, at this time, the squeezing block 813 will no longer squeeze and fix the cross bar 809, so that the position of the fitting rod 810 can be easily adjusted through the fixed cylinder 801. Similarly, after the fixed cylinder 801 passes over the current fitting rod 810, the cylinder 815 will not contact the touch plate 817, so that the fitting rod 810 is fixed again, which is convenient for guiding the subsequent guide column 806 to move;

[0046] Furthermore, an extension groove 818 is provided at one end of the two cylinders 815 that are close to each other, and a second spring 819 is fixedly connected to the inner wall of the extension groove 818, and an extension block 820 is fixedly connected to one end of the two springs 819 that are close to each other. Under normal circumstances, due to limited space, the two cylinders 815 will be pressed down by the edge positions on both sides of the bottom of the touch plate 817 to keep them in an unfixed state. When the fixed cylinder 801 is horizontally offset, in order to prevent the cylinder 815 on one side from being out of contact with the touch plate 817, the second spring 819 can drive the extension block 820 to extend out of the extension groove 818 for compensation, ensuring that the touch plate 817 can always press down the current two cylinders 815 to keep them in an unfixed state when moving horizontally.

[0047] Furthermore, during the process of the support ring 3 rotating one circle, the outer walls on both sides of one of the middle support frames 2 are fixedly connected with reset blocks 12, and the upper surfaces of the two reset blocks 12 are inclined corresponding to the cross bar 809. Therefore, under normal circumstances, when the two ends of the bonding rod 810 are located on a side wall close to the two reset blocks 12, the bonding rod 810 will be in the initial position at this time, so that after the offset and the bonding rod 810 guided by the guide column 806, when it touches the two reset blocks 12, it can squeeze one side of the bonding rod 810 through the inclined surface, thereby automatically driving the bonding rod 810 to be forced to reset, that is, when the support ring 3 rotates one circle and the welding is completed, the several bonding rods 810 at this time will automatically complete the reset.

[0048] In an embodiment, a solder surface scraping member 9 is provided on one side of the fixing plate 17. The solder surface scraping member 9 includes a scraping plate 901, and a rotating rod 902 is fixedly connected to the inner wall of one end of the scraping plate 901 facing the fixing plate 17. Fixed seats 903 are symmetrically and fixedly connected to the outer wall of the fixing plate 17 facing the scraping plate 901, and the outer walls of the rotating rods 902 are rotatably connected to the inner walls of the two fixed seats 903. A screw rod 904 is rotatably connected to the top of the fixing plate 17, and a rotating handle 905 is fixedly connected to the top of the screw rod 904. A pressing rod 906 is threadedly connected to the outer wall of the screw rod 904 corresponding to the scraping plate 901;

[0049] Then, a rotating rod 902 is fixedly connected to the inner wall of one end of the scraping plate 901 facing the fixing plate 17. Fixed seats 903 are symmetrically and fixedly connected to the outer wall of the fixing plate 17 facing the scraping plate 901, and the outer walls of the rotating rods 902 are rotatably connected to the inner walls of the two fixed seats 903. Outer walls of both ends of the rotating rod 902 are fixedly connected with torsion springs 908, and one ends of the two torsion springs 908 close to each other are respectively fixedly connected to the outer walls of the two fixed seats 903 away from each other. Thus, in a normal state, the scraping plate 901 will be driven by the torsion spring 908 to maintain a horizontal orientation;

[0050] Thus, during welding, a screw rod 904 is rotatably connected to the top of the fixing plate 17, a rotating handle 905 is fixedly connected to the top of the screw rod 904, a pressing rod 906 is threadedly connected to the outer wall of the screw rod 904 corresponding to the scraping plate 901, and limiting rods 907 are symmetrically and fixedly connected to the top of the fixing plate 17 corresponding to the pressing rod 906. The outer walls of the two limiting rods 907 close to each other are in sliding fit with the outer walls on both sides of the pressing rod 906. Thus, the pressing rod 906 can be driven to move downward by rotating the rotating handle 905, so that the angle of the scraping plate 901 can be controlled, and the scraping plate 901 can be flipped downward until it fits and covers the joint and its two side positions. Thus, the surface oxide layer and cutting burrs at the joint position can be scraped during the welding process, ensuring the smoothness of the joint position, and avoiding the waste caused by the combined action of the reflection of the oxide layer and the scattering of the burrs, resulting in multiple reflections and dissipation of the laser energy on the surface. And through an adjustable method, it can be applicable to the worn situation.

[0051] In an embodiment, a weld blow-off component 10 is provided on the other side of the fixing plate 17. The weld blow-off component 10 includes an installation cylinder 1001. The outer walls of the two installation cylinders 1001 are symmetrically installed inside the fixing plate 17. A piston 1002 is slidably connected to the inner wall of the installation cylinder 1001, and a reciprocating rod 1003 is fixedly connected to the bottom of the piston 1002. The bottom of the reciprocating rod 1003 extends to the outside of the installation cylinder 1001, and an auxiliary disc 1004 is fixedly connected to the outer wall of the extended end of the reciprocating rod 1003. A third spring 1005 is fixedly connected to the top of the auxiliary disc 1004, and the top of the third spring 1005 is fixedly connected to the bottom outer wall of the installation cylinder 1001. Two groups of support blocks 1006 are symmetrically and fixedly connected to the bottom of the fixing plate 17. A rotating rod 1007 is rotatably connected to the closer sides of the two support blocks 1006 in each group. Rollers 1008 are symmetrically and fixedly connected to the outer wall of the rotating rod 1007. A convex block 1009 is fixedly connected to the outer wall of the rotating rod 1007 corresponding to the reciprocating rod 1003;

[0052] Then when the pin 804 is inserted into the joint, at this time, two groups of support blocks 1006 are symmetrically and fixedly connected to the bottom of the fixing plate 17. A rotating rod 1007 is rotatably connected to the closer sides of the two support blocks 1006 in each group. Rollers 1008 are symmetrically and fixedly connected to the outer wall of the rotating rod 1007. A convex block 1009 is fixedly connected to the outer wall of the rotating rod 1007 corresponding to the reciprocating rod 1003. Thus, during the rotation of the metal pipe body 18, the convex block 1009 can be synchronously driven to rotate by the roller 1008;

[0053] Then, since a piston 1002 is slidably connected to the inner wall of the installation cylinder 1001, a reciprocating rod 1003 is fixedly connected to the bottom of the piston 1002. The bottom of the reciprocating rod 1003 extends to the outside of the installation cylinder 1001, and an auxiliary disc 1004 is fixedly connected to the outer wall of the extended end of the reciprocating rod 1003. A third spring 1005 is fixedly connected to the top of the auxiliary disc 1004, and the top of the third spring 1005 is fixedly connected to the bottom outer wall of the installation cylinder 1001. Therefore, the reciprocating rod 1003 can be driven to rise by the extrusion of the convex block 1009, and then the reciprocating rod 1003 can be driven to descend by the third spring 1005 to achieve reciprocating motion;

[0054] Next, an air blowing pipe 1010 is fixedly connected to the outer walls of the top sides of the two mounting cylinders 1001, and the other end of the air blowing pipe 1010 is fixedly connected to an air blowing cylinder 1011. A limiting block 1012 is fixedly connected to the outer wall of the side of the fixing plate 17 away from the scraping plate 901, and the outer wall of the air blowing cylinder 1011 is fixedly connected to the inner wall of the limiting block 1012. Air inlet pipes 1013 are fixedly connected to the tops of the two mounting cylinders 1001 respectively. Thus, when the piston 1002 rises, the air in the mounting cylinder 1001 can be sent into the air blowing cylinder 1011 through the air blowing pipe 1010, and the air blowing cylinder 1011 can be used to jet and blow along the tangential direction of the joint, so as to clean the dust and residues in the joint and on both side surfaces of the joint, which is beneficial to ensuring the welding quality of the device.

[0055] Next, the two groups of convex blocks 1009 are arranged in opposite directions. Thus, when one piston 1002 rises to send air, the other piston 1002 is in the descending process or in the stopped state after descending, which can increase the blowing frequency, form continuous cleaning and blowing, and ensure the cleaning efficiency of the joint position.

[0056] Furthermore, check valves are installed in both the air blowing pipe 1010 and the air inlet pipe 1013 respectively, so as to enable the air blowing pipe 1010 to only send air into the air blowing cylinder 1011, and the air inlet pipe 1013 to only suck air from the outside into the mounting cylinder 1001, so as to achieve the above-mentioned blowing through one-way flow.

[0057] The working principle of the present invention: First, the two metal pipe bodies 18 are respectively inserted into and combined from both sides of the support ring 3, and then the electric push rod 14 drives the three clamping blocks 15 to position the joint ends of the two metal pipe fittings at the center of the middle support ring 3, and then the driving motor 5 drives the two metal pipe bodies 18 to rotate synchronously, and can drive a plurality of symmetrically arranged fitting rods 810 to move in a circle through the middle support ring 3.

[0058] Next, in this process, the laser head 808 focuses the laser beam on the joint surface through the fiber laser in the laser tube body 807. During the rotation of the metal pipe body 18, the laser head 808 will move synchronously along the rotation axis of the pipe body relatively.

[0059] In order to ensure that the laser welding position is accurately at the center of the joint, the height of the adjusting rod 803 is adjusted so that the pin 804 at its bottom can be inserted into the center of the joint of the two metal pipe bodies 18, and the position of the adjusting rod 803 is fixed by the rotating handle 821, so that when the two metal pipe bodies 18 rotate synchronously, the horizontal position of the pin 804 can be adjusted synchronously according to the offset situation of the joint.

[0060] Next, during the normal rotation process, several symmetric fitting rods 810 will fit and slide from the end of the fixed cylinder 801, thus forming a welding path. When the seam position shifts, at this time, the pin 804 will move horizontally relatively, causing the fixed cylinder 801 to drive the fitting rods 810 horizontally, thereby relatively changing the entire welding path. When the welding path is changed by the fixed cylinder 801, it will cause a corresponding offset seam at the subsequent position. One of the offset fitting rods 810 will synchronously drive the guide post 806 to move deflectedly, thus achieving the ability to move slightly left and right according to the seam offset situation, thereby synchronously adjusting the left and right positions of multiple symmetric fitting rods 810, so that the subsequent guide post 806 can synchronously drive the laser head 808 to move slightly dynamically with respect to the seam, always keeping the laser welding position at the center of the seam;

[0061] During welding, the rotation of the rotating handle 905 can drive the pressing rod 906 to move downward, thereby enabling the control of the angle of the scraper 901, causing the scraper 901 to flip downward until it fits and covers the seam and its two side positions, so that the surface oxide layer and cutting burrs at the seam position can be scraped off during the welding process, ensuring the smoothness of the seam position, and avoiding the combined effect of oxide layer reflection and burr scattering, resulting in the waste caused by multiple reflections and dissipation of laser energy on the surface. And through an adjustable method, it can be applicable to the case of wear;

[0062] Next, during the rotation of the metal pipe body 18, the roller 1008 can synchronously drive the convex block 1009 to rotate, thereby enabling the convex block 1009 to squeeze and drive the reciprocating rod 1003 to rise, and then the spring three 1005 drives the reciprocating rod 1003 to descend to achieve reciprocating motion. When the piston 1002 rises, the air in the mounting cylinder 1001 can be sent into the air blowing cylinder 1011 through the air blowing pipe 1010, so that the air blowing cylinder 1011 can spray and blow along the tangent direction of the seam to clean the dust and residues in the seam and on the two side surfaces of the seam, which is beneficial to ensuring the welding quality of the device.

[0063] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be subject to the scope defined by the claims.

Claims

1. An intelligent welding device for metal parts with anti-offset function, comprising a base (1), a fixing plate (17), and a metal tube body (18), characterized in that, The top of the base (1) is symmetrically and fixedly connected with support frames (2) at equal distances. One side of each group of two support frames (2) close to each other is rotatably connected with a support ring (3). The outer walls of the three support rings (3) are fixedly connected with transmission gear teeth (4) at equal distances. A driving motor (5) is fixedly installed on the top of the base (1), and a shaft rod (6) is fixedly connected to the output shaft at one end of the driving motor (5). Transmission gears (7) are fixedly connected to the outer wall of the shaft rod (6) at equal distances corresponding to the support rings (3). The fixing plate (17) is arranged inside the middle support ring (3); A dynamic adjustment component (8) is arranged on the inner wall of the middle support ring (3) to adaptively move according to the seam offset during the laser welding process and keep the laser welding position at the center of the seam; A welding surface scraping component (9) is arranged on one side of the fixing plate (17) to scrape the surface oxide layer and cutting burrs at the seam position to avoid waste caused by multiple reflections and dissipation of laser energy on the surface; A weld seam blowing component (10) is arranged on the other side of the fixing plate (17) to spray and blow along the tangent direction of the seam to clean the dust and residues inside the seam and on both side surfaces of the seam.

2. The intelligent welding device for anti-offset metal parts according to claim 1, characterized in that, The dynamic adjustment component (8) includes a fixed cylinder (801). An auxiliary plate (802) is slidably connected to the outer wall of the fixed cylinder (801). One end of the auxiliary plate (802) is fixedly connected with a support cross plate (11), and both ends of the support cross plate (11) are fixedly connected to the same side wall of the two middle support frames (2). An adjusting rod (803) is slidably connected to the bottom inner wall of the fixed cylinder (801), and a plug pin (804) is fixedly connected to the bottom of the adjusting rod (803). A connecting plate (805) is rotatably connected to the outer wall of the fixed cylinder (801), and a guiding column (806) is fixedly connected to the other end inside the connecting plate (805). A laser tube body (807) is fixedly installed at the bottom of the guiding column (806), and a laser head (808) is installed at the bottom of the laser tube body (807).

3. An intelligent welding device for metal parts that prevents deviation, as described in claim 2, characterized in that Sliding holes (19) are penetrated through the side wall of the middle support ring (3) at equal distances. The inner walls of several sliding holes (19) are all in sliding fit with cross bars (809), and both ends of the cross bars (809) extend to the outside of the middle support ring (3). Fitting rods (810) are fixedly connected to the outer walls of both ends of the cross bars (809) corresponding to the fixed cylinder (801). One end of the two fitting rods (810) close to each other is in fit with the outer wall of the top end of the fitting rod (810). Positioning frames (811) are symmetrically and fixedly connected to the inner wall of the middle support ring (3) corresponding to the cross bars (809). The inner walls of both sides of the positioning frames (811) are in sliding fit with the outer walls of both sides of the cross bars (809). A sliding rod (812) is slidably connected to the bottom inner part of the positioning frame (811), and a pressing block (813) is fixedly connected to the top of the sliding rod (812).

4. An intelligent welding device for anti-offset metal parts according to claim 3, characterized in that, The bottom of the extrusion block (813) is fixedly connected to a first spring (814), and the bottom of the first spring (814) is fixedly connected to the inner bottom wall of the limit frame (811). The extrusion block (813) is arranged at the bottom of the cross bar (809) by being extruded by the first spring (814). The bottoms of the two slide bars (812) are both fixedly connected to a cylinder body (815), and the outer shape of the cylinder body (815) is cylindrical. The top of the fixed cylinder (801) is fixedly connected to a mounting block (816), and a touch plate (817) is fixedly connected to the top of the mounting block (816) corresponding to the cylinder body (815). Extension grooves (818) are opened at the ends of the two cylinder bodies (815) close to each other, and a second spring (819) is fixedly connected to the inner wall of the extension groove (818). The ends of the two second springs (819) close to each other are both fixedly connected to an extension block (820). A rotating handle (821) is threadedly installed on the outer wall of the fixed cylinder (801).

5. The intelligent welding device for anti-offset metal parts according to claim 4, characterized in that, On both outer walls of one of the middle support frames (2), a reset block (12) is fixedly connected. The upper surfaces of the two reset blocks (12) are both bevel-shaped corresponding to the cross bar (809). One end of the shaft rod (6) away from the drive motor (5) is rotatably connected to a support seat (13), and the bottom of the support seat (13) is fixedly connected to the top of the base (1). Electric push rods (14) are equidistantly installed on the inner walls of the two support rings (3). A clamping block (15) is fixedly connected to the output rod of the electric push rod (14) corresponding to the metal pipe body (18). The clamping block (15) is V-shaped. Sliding rings (16) are symmetrically and fixedly connected to the outer walls of the three support rings (3), and the outer walls of the sliding rings (16) are in sliding fit with the inner walls of the support frame (2). The fixing plate (17) is fixedly connected to the outer bottom wall of the adjusting rod (803).

6. The intelligent welding device for anti-offset metal parts according to claim 5, characterized in that, The welding surface scraping component (9) includes a scraping plate (901), and a rotating rod (902) is fixedly connected to the inner wall of one end of the scraping plate (901) facing the fixing plate (17). Fixed seats (903) are symmetrically and fixedly connected to the outer wall of the fixing plate (17) facing the scraping plate (901), and the outer walls of the rotating rod (902) are rotatably connected to the inner walls of the two fixed seats (903). A screw rod (904) is rotatably connected to the top of the fixing plate (17), and a rotating handle (905) is fixedly connected to the top of the screw rod (904). A pressing rod (906) is threadedly connected to the outer wall of the screw rod (904) corresponding to the scraping plate (901). Limit rods (907) are symmetrically and fixedly connected to the top of the fixing plate (17) corresponding to the pressing rod (906). The outer walls of the two limit rods (907) close to each other are in sliding fit with the outer walls of both sides of the pressing rod (906). Torsion springs (908) are fixedly connected to the outer walls of both ends of the rotating rod (902), and the ends of the two torsion springs (908) close to each other are respectively fixedly connected to the outer walls of the two fixed seats (903) away from each other.

7. An intelligent welding device for metal parts with anti-offset function according to claim 6, characterized in that, The weld blowing component (10) includes a mounting cylinder (1001). The outer walls of the two mounting cylinders (1001) are symmetrically mounted inside the fixing plate (17). A piston (1002) is slidably connected to the inner wall of the mounting cylinder (1001), and a reciprocating rod (1003) is fixedly connected to the bottom of the piston (1002). The bottom of the reciprocating rod (1003) extends outside the mounting cylinder (1001), and an auxiliary disc (1004) is fixedly connected to the outer wall of the extended end of the reciprocating rod (1003). A third spring (1005) is fixedly connected to the top of the auxiliary disc (1004), and the top of the third spring (1005) is fixedly connected to the bottom outer wall of the mounting cylinder (1001). Two groups of the support blocks (1006) are symmetrically and fixedly connected to the bottom of the fixing plate (17). A rotating rod (1007) is rotatably connected to the closer sides of the two support blocks (1006) in each group, and rollers (1008) are symmetrically and fixedly connected to the outer wall of the rotating rod (1007). A convex block (1009) is fixedly connected to the outer wall of the rotating rod (1007) corresponding to the reciprocating rod (1003).

8. An intelligent welding device for metal parts to prevent deviation according to claim 7, characterized in that, Blow pipes (1010) are fixedly connected to the outer walls of the tops of the two mounting cylinders (1001), and the other ends of the blow pipes (1010) are fixedly connected to a blowing cylinder (1011). A limiting block (1012) is fixedly connected to the outer wall of the fixing plate (17) away from the scraping plate (901), and the outer wall of the blowing cylinder (1011) is fixedly connected to the inner wall of the limiting block (1012). Air inlet pipes (1013) are fixedly connected to the tops of the two mounting cylinders (1001).

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