A laser welding machine tool for guide plates of high-strength alloy

Abstract

This invention relates to the field of laser welding, specifically to a high-strength alloy laser welding machine tool for guide plates. It includes a base and a laser welding gun. The base has a placement groove, and a hydraulic telescopic rod is fixedly installed above the base. A lower pressure block is fixedly installed at the bottom of the hydraulic telescopic rod, and a U-shaped guide rail is fixedly installed on the lower pressure block. A sliding welding frame is slidably connected to the U-shaped guide rail. This invention uses the hydraulic telescopic rod to push a rolling roller to firmly press against the workpiece below. A drive motor pushes the sliding welding frame and the laser welding gun on it to move smoothly along the preset U-shaped guide rail and perform welding operations. During welding, appropriate pressure can be applied to the real-time welding area on the workpiece, effectively avoiding the problem of decreased welding quality caused by thermal deformation during welding, thereby preventing welding deformation and further improving the overall welding quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of laser welding, in particular to a guide plate high-strength alloy laser welding machine tool. BACKGROUND

[0002] The electric saw guide plate is the core stressed component of the electric saw, mainly guiding the stable operation of the saw chain, and is mainly made of high-carbon steel or alloy structural steel, having high strength and wear resistance. When installed, an alloy material is welded on the head of the guide plate. Most manufacturers use laser welding for rapid welding production. Laser welding is an advanced welding technology that uses a high-energy-density laser beam as a heat source to locally heat the material, causing the material to melt and form a firm weld. However, in the process of use, although laser welding has the core advantages of "low heat input and small heat affected zone", its essence is still a thermal cycle process of local high-temperature heating and cooling. Due to "uneven heat distribution" and "physical properties of the material itself", the material will inevitably be deformed to varying degrees. Because the overall thickness of the guide plate is thin and the material used is light, when welding the guide plate, the long strip-shaped workpiece is prone to warping deformation or downward deformation during laser welding, affecting product quality.

[0003] Therefore, a guide plate high-strength alloy laser welding machine tool is proposed. SUMMARY

[0004] The purpose of the present application is to provide a guide plate high-strength alloy laser welding machine tool to solve the problem of the overall thin thickness of the guide plate, the light material used, and the warping deformation or downward deformation of the long strip-shaped workpiece during laser welding when welding the guide plate, affecting product quality.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] A guide plate high-strength alloy laser welding machine tool, comprising a base and a laser welding gun, wherein the base is provided with a placing groove, a hydraulic telescopic rod is fixedly installed above the base, a lower pressing block is fixedly installed at the bottom of the hydraulic telescopic rod, a U-shaped guide rail is fixedly installed on the lower pressing block, a sliding welding frame is slidably connected to the U-shaped guide rail, a drive motor is installed on the sliding welding frame, a roller abutting against the U-shaped guide rail is installed on the output shaft of the drive motor, a plurality of rolling wheels are installed on the sliding welding frame, the rolling wheels are divided into two groups, each group of rolling wheels is provided with two rolling wheels symmetrically arranged on both sides of the weld, the laser welding gun is fixedly installed on the welding frame, a cooling assembly is installed on the sliding welding frame, the drive motor drives the roller to rotate, the rotating roller drives the sliding welding frame to move, and the sliding welding frame drives the laser welding gun to move for laser welding, while driving the rolling wheels and the cooling assembly to move on the weld.

[0007] In the actual welding process, a large amount of heat is generated due to the welding operation itself, and it is often difficult to quickly and effectively dissipate the heat from the welding position in a short time. This condition is likely to cause the welding part to be over-heated in the local area. Once the welding part is locally overheated, it is easy to cause the welding part to produce varying degrees of thermal deformation. Even slight thermal deformation can adversely affect the overall quality of the welding, such as the welding position not being strong enough or the welding seam forming effect being poor. In order to effectively solve this problem, the pushing force of the hydraulic telescopic rod can be used to move the lower pressing block fixed on the movable end downward, so that the lower sliding welding frame makes the rolling wheel tightly abut against the lower welding part. When the pressing operation is completed, the driving motor is started to drive the entire sliding welding frame to move smoothly, ensuring that the laser welding gun on the sliding welding frame can smoothly move along the preset U-shaped guide rail and perform welding work. During the movement, the rolling wheel is also appropriately pressed onto the welding part and moves with the welding part. In this way, while welding, appropriate pressing force can be applied to the real-time welding area on the welding part, effectively avoiding the problem of reduced welding quality caused by thermal deformation during welding, thereby significantly reducing the occurrence of welding deformation and further improving the overall quality of the welding.

[0008] Preferably, a sliding prism is fixedly installed on the sliding welding frame, a pressing plate is slidably connected to the sliding prism, a limiting plate is fixedly installed on the sliding prism, a compression spring is in abutment between the sliding welding frame and the pressing plate, the compression spring is sleeved on the sliding prism, a plurality of mounting plates are fixedly installed on the pressing plate, the rolling wheel is rotatably connected to the plurality of mounting plates, and the laser welding gun is installed on the pressing plate.

[0009] In the actual welding process, the cooperation of the sliding prism and the sliding welding frame enables the lower pressing plate to move around the U-shaped guide rail, enabling the guide plate to be fully welded to the long plate. The pressing plate can exert a stable pressure on the welding part under the action of the compression spring. This pressure makes the rolling wheel tightly adhere to the surface of the welding part. When the sliding welding frame moves with the pressing plate, the rolling wheel can uniformly roll on both sides of the welding seam. This rolling action helps to eliminate residual stress generated during welding, reduces welding deformation, and improves welding quality. At the same time, since the laser welding gun is also installed on the pressing plate, it can accurately laser weld the welding seam as the pressing plate moves, ensuring the accuracy of the welding position. Moreover, the sliding design of the pressing plate on the sliding prism enables the pressing plate to be self-adaptively adjusted to a certain extent according to the thickness and shape of the welding part, further improving the applicability and welding effect of the laser welding machine tool.

[0010] Preferably, the U-shaped guide rail is funnel-shaped in cross-section, the sliding welding frame is rotatably connected with two symmetrical rotating plates, each rotating plate is rotatably connected with a rolling wheel, the rolling wheel slides on the U-shaped guide rail, and the rolling wheel is spindle-shaped as a whole.

[0011] The funnel-shaped cross-section of the guide rail design, cleverly cooperate with the spindle-shaped rolling wheel, can significantly reduce the shaking phenomenon in the process of moving the sliding welding frame, thereby greatly improving the stability of the welding operation. The contact area between the spindle-shaped rolling wheel and the funnel-shaped guide rail is larger than that of the traditional design, which makes the pressure distribution more uniform, effectively avoids the problem of excessive wear of the guide rail caused by local pressure concentration, and prolongs the service life of the equipment. In addition, this unique structural design also brings another significant advantage: when the lower pressing block drives the U-shaped guide rail fixed thereon to move downward, the upper side of the U-shaped guide rail can stably abut against the lower rolling wheel, and the rolling wheel can apply uniform extrusion force to the lower welding part to achieve precise limiting effect, thereby preventing the welding part from deforming during welding. Similarly, when the lower pressing block drives the U-shaped guide rail fixed thereon to move upward, the lower side of the U-shaped guide rail can smoothly push the rolling wheel to move upward, thereby driving the entire sliding welding frame to move upward and away from the lower welding part, ensuring the smooth progress of the welding operation. This design not only improves the precision and stability of welding, but also enables the entire device to operate stably for a long time, greatly improving the service life and comprehensive performance of the equipment.

[0012] Preferably, the rolling column is provided with a sliding groove, a limiting prism is slidably connected in the sliding groove, the limiting prism is fixedly installed with the output shaft of the driving motor, the outer side of the rolling column is pasted with a rubber sleeve through glue, the side wall of the U-shaped guide rail is provided with a tooth-shaped indentation, and the rolling column is rollingly connected on the tooth-shaped indentation.

[0013] Through the precise cooperation between the sliding groove and the limiting prism designed on the roller, we can ensure that the roller rotates stably and accurately under the drive of the motor. It is worth noting that the rolling wheel and the U-shaped guide rail are gap-fitted, which will inevitably produce a certain amount of mutual movement when the U-shaped guide rail drives the sliding welding frame to move up and down, causing the roller to need to frequently rub against the side wall of the U-shaped guide rail, resulting in serious deformation of the U-shaped guide rail or the roller. Therefore, by allowing the roller to move up and down without interfering with its normal rotation, we can avoid the friction between the rolling wheel and the side wall of the U-shaped guide rail. In addition, the rubber sleeve attached to the outside of the roller plays multiple roles. First, it can effectively absorb and alleviate the vibration and impact generated during equipment operation, thereby reducing noise and providing a quieter working environment for operators. Second, the presence of the rubber sleeve also significantly increases the friction between the roller and the toothed indentation, which is crucial for preventing the roller from slipping during rolling. In this way, the sliding welding frame can move more smoothly along the U-shaped guide rail, ensuring that the laser welding gun, the rolling wheel, and the cooling assembly can accurately follow the predetermined trajectory on the welded part for precise operation. This not only improves the quality of welding but also significantly enhances the efficiency of the welding process. At the same time, the toothed indentation on the side wall of the U-shaped guide rail provides a specific track for the roller to roll, making the roller's rolling more orderly and controllable. This design further enhances the stability and accuracy of the entire welding process, ensuring high-quality completion of the welding operation.

[0014] Preferably, the cooling assembly comprises a flow guide pipe, a protective cover is fixedly installed on the flow guide pipe, the protective cover is triangular pyramid-shaped as a whole, one side of the sharp cone of the protective cover faces the mounting bracket, the flow guide pipe is connected with the cooling device, an air pipe is fixedly installed on the lower pressing plate, the air pipe is connected with the flow guide pipe through a pipeline, the air pipe is trapezoidal as a whole, the bottom of the trapezoid is inclined and parallel to the surface of the welded part.

[0015] In the welding process, the cooling assembly needs to be located at the rear of the laser welding gun moving direction to cool the welded weld position, so that the hot air generated during welding has an impact on the cooling of the weld behind, causing deformation of the weld again, and the overall triangular pyramid setting of the protective cover can efficiently guide the hot air generated during welding. The flow guide pipe is responsible for guiding the flow of cooling medium, and the triangular pyramid structure of the protective cover not only protects the flow guide pipe from damage caused by spatter generated during welding, but also changes the direction of the airflow to some extent, making the cooling effect more uniform. The bottom of the air pipe is inclined, which is beneficial to the air in the forward direction to guide the air in front of the laser welding gun to the position that needs to be cooled, avoiding the impact of external air on the laser welding during movement, avoiding the decline of product quality after welding, and at the same time guiding the air to the position that needs to be cooled, ensuring that each part of the welded part can be effectively cooled, thereby improving the welding quality and reducing the thermal deformation caused by local overheating after welding. Improve the quality of the product after welding.

[0016] Preferably, the lower pressing plate is fixedly installed with a mounting bracket, two symmetrically arranged threaded holes are opened in the mounting bracket, a limiting screw is threadedly connected in each threaded hole, and the laser welding gun is placed between the two limiting screws and fixed on the mounting bracket through the limiting screws.

[0017] In actual application, this fixing mode can ensure that the laser welding gun maintains a stable position during welding and does not deviate due to vibration of the machine tool or shaking during operation. The design of the limiting screw not only facilitates the installation and disassembly of the laser welding gun, but also allows flexible adjustment of the position of the laser welding gun on the mounting bracket according to different welding requirements, and the mounting bracket can replace different types of laser welding guns according to different weld widths, so that the welding machine tool can adapt to welded parts of different sizes and shapes. In addition, the threaded holes on the mounting bracket have high precision, which can ensure the stability of the limiting screw after being screwed in, further improve the reliability of the laser welding gun fixation, and provide strong protection for high-quality laser welding work.

[0018] Preferably, the bottom of the air pipe and the bottom of the protective cover are fixedly installed with silica gel strips, the silica gel strips are inclined, and the inclination direction is opposite to the direction of the side of the air pipe and the bottom of the protective cover.

[0019] The silica gel strip can better fit the surface of the welding part when contacting the surface, effectively prevents gas and impurities generated during welding from entering the inside of the protective cover, thereby ensuring the cleanliness of the weld cooling, avoiding the hot air generated by welding from entering the inside of the protective cover to affect the cooling speed and cooling effect, and improving the welding quality. At the same time, the inclined arrangement of the silica gel strip can move with the movement of the sliding welding frame, avoiding the friction between the silica gel strip and the guide plate affecting the displacement of the sliding welding frame, and also playing a buffering role to a certain extent, reducing the influence of vibration generated during welding on the bottom guide plate, further improving the welding quality and prolonging the service life of the equipment.

[0020] Preferably, the rolling wheel is made of a metal material, a one-way structure is installed in the rolling wheel, and a grid pattern is arranged on the surface of the rolling wheel.

[0021] This design makes the one-way structure ensure that the rolling wheel only rotates in one direction during rolling, avoiding the rolling wheel pulling the guide plate to rotate in the opposite direction when the guide plate is deformed due to heat, causing the guide plate to be deformed and protrude in the characteristic area. Therefore, the rolling wheel can only move forward to avoid the influence of the free rotation of the rolling wheel on the extrusion and positioning of the guide plate. The grid pattern arranged on the surface not only increases the friction between the rolling wheel and the contact surface, further ensuring the stability of the guide plate during welding, but also makes the rolling process more stable and reliable, and also plays a heat dissipation role to a certain extent, preventing the rolling wheel from being overheated due to long-term work and affecting its performance and service life.

[0022] Compared with the prior art, the present application has the following advantages:

[0023] 1. The hydraulic telescopic rod pushes the rolling wheel tightly against the lower welding part, the driving motor pushes the sliding welding frame and the laser welding gun thereon to smoothly move along the preset U-shaped guide rail and perform welding work. At the same time of welding, appropriate pressing force can be applied to the real-time welding area on the welding part, effectively avoiding the problem of reduced welding quality caused by thermal deformation during welding, thereby avoiding welding deformation and further improving the overall welding quality.

[0024] 2. The contact area between the spindle-shaped rolling wheel and the funnel-shaped guide rail is larger than that of the traditional design, which makes the pressure distribution more uniform, effectively avoiding the problem of excessive wear of the guide rail caused by local pressure concentration. At the same time, when the lower pressing block drives the fixed U-shaped guide rail thereon to move downward, the upper side of the U-shaped guide rail can stably abut against the lower rolling wheel, and the rolling wheel can apply uniform extrusion force to the lower welding part, achieving precise positioning effect and preventing the welding part from deforming during welding.

[0025] 3、The existence of the rubber sleeve increases the friction between the roller and the toothed indentation, so that the sliding welding frame can move more smoothly along the U-shaped guide rail, and the mutual movement between the U-shaped guide rail and the rolling wheel causes the rubber sleeve to need to frequently rub against the toothed indentation, resulting in serious damage to the rubber sleeve, so by allowing the roller to move up and down without interfering with the normal rotation of the roller, the friction between the rolling wheel and the side wall of the U-shaped guide rail is avoided by moving up and down, so that the sliding welding frame can move stably. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the guide plate high-strength alloy laser welding machine tool of the present application;

[0027] Figure 2 It is a schematic diagram of the three-dimensional structure of the U-shaped guide rail in the present application;

[0028] Figure 3 It is a schematic diagram of the structure of the lower pressing plate in the present application;

[0029] Figure 4 It is a schematic diagram of the flow guide structure of the air pipe in the present application;

[0030] Figure 5 It is a schematic diagram of the structure of the toothed indentation in the present application;

[0031] Figure 6 It is a schematic diagram of the bottom structure of the lower pressing plate in the present application;

[0032] Figure 7 It is a schematic diagram of the internal structure of the roller in the present application.

[0033] In the figure: 1, base; 2, hydraulic telescopic rod; 3, lower pressing block; 4, laser welding gun; 5, U-shaped guide rail; 6, sliding welding frame; 7, rolling wheel; 8, lower pressing plate; 9, sliding prism; 10, compression spring; 11, air pipe; 12, rolling wheel; 13, pipe; 14, protective cover; 15, mounting frame; 16, flow guide pipe; 17, driving motor; 18, limiting prism; 19, roller; 20, rubber sleeve; 21, toothed indentation; 22, limiting plate; 23, mounting plate; 24, limiting screw. DETAILED DESCRIPTION

[0034] Please refer to Figures 1 to 7 The present application provides a guide plate high-strength alloy laser welding machine tool, the technical scheme is as follows:

[0035] The utility model provides a kind of guide plate high-strength alloy laser welding machine tool, including base 1 and laser welding gun 4, be equipped with placement groove on base 1, hydraulic telescopic link 2 is fixedly installed above base 1, the bottom of hydraulic telescopic link 2 is fixedly installed with down pressure block 3, U-shaped guide rail 5 is fixedly installed on down pressure block 3, sliding welding frame 6 is slidably connected on U-shaped guide rail 5, driving motor 17 is installed on sliding welding frame 6, the output shaft of driving motor 17 is installed with the abutment of U-shaped guide rail 5 with the roller 19, a plurality of rolling wheels 12 are installed on sliding welding frame 6, and rolling wheels 12 are divided into two groups, and each group of rolling wheels 12 is equipped with two and symmetrically arranged at the two sides of weld, and laser welding gun 4 is fixedly installed on sliding welding frame 6, and cooling assembly is installed on sliding welding frame 6, driving motor 17 drives roller 19 to rotate, and rotating roller 19 drives sliding welding frame 6 to move, and sliding welding frame 6 drives laser welding gun 4 to move and carries out laser welding, while driving rolling wheel 12 and cooling assembly to move on welding piece.

[0036] Sliding prism 9 is fixedly installed on sliding welding frame 6, and lower pressing plate 8 is slidably connected on sliding prism 9, and limiting plate 22 is fixedly installed on sliding prism 9, and compression spring 10 is in abutment between sliding welding frame 6 and lower pressing plate 8, and compression spring 10 is sleeved on sliding prism 9, and a plurality of mounting plates 23 are fixedly installed on lower pressing plate 8, and rolling wheel 12 is rotatably connected on a plurality of mounting plates 23, and laser welding gun 4 is installed on lower pressing plate 8.

[0037] The section of U-shaped guide rail 5 is funnel-shaped, and two symmetrically arranged rotating plates are rotatably connected on sliding welding frame 6, and rolling wheel 7 is rotatably connected on each rotating plate, and rolling wheel 7 slides on U-shaped guide rail 5, and rolling wheel 7 is integrally arranged in a spindle shape.

[0038] Sliding groove is formed in roller 19, and limiting prism 18 is slidably connected in sliding groove, and limiting prism 18 is fixedly installed with the output shaft of driving motor 17, and rubber sleeve 20 is pasted on the outside of roller 19 by glue, and tooth-shaped indentation 21 is formed in the side wall of U-shaped guide rail 5, and roller 19 is rotatably connected in tooth-shaped indentation 21.

[0039] Cooling assembly includes flow guide pipe 16, and protective cover 14 is fixedly installed on flow guide pipe 16, and protective cover 14 is integrally arranged in a triangular pyramid shape, and the pointed cone side of protective cover 14 is arranged towards mounting bracket 15, and flow guide pipe 16 is connected with cooling equipment, and air pipe 11 is fixedly installed on lower pressing plate 8, and air pipe 11 is connected with flow guide pipe 16 through pipeline 13, and air pipe 11 is integrally arranged in a trapezoidal shape, and the bottom of trapezoidal shape is arranged in an inclined manner and is parallel to the surface of welding piece.

[0040] The lower pressing plate 8 is fixedly provided with a mounting rack 15, the mounting rack 15 is provided with two symmetrical threaded holes, each threaded hole is threadedly connected with a limiting screw 24, and the laser welding gun 4 is placed between the two limiting screws 24 and fixed on the mounting rack 15 through the limiting screws 24.

[0041] The bottom of the ventilation pipe 11 and the bottom of the protective cover 14 are fixedly provided with silica gel strips, the silica gel strips are inclinedly arranged, and the inclination directions are opposite to the side of the ventilation pipe 11 and the bottom of the protective cover 14.

[0042] The rolling wheel 12 is made of metal material, the rolling wheel 12 is provided with a one-way structure, and the surface of the rolling wheel 12 is provided with a grid pattern.

[0043] In specific use, the design of the limiting screw 24 facilitates the installation and disassembly of the laser welding gun 4, and can flexibly adjust the position of the laser welding gun 4 on the mounting rack 15 according to different welding requirements, and meanwhile, the mounting rack 15 can replace different types of laser welding guns 4 according to different welding seam widths, so that the welding machine can adapt to welding pieces of different sizes and shapes. The guide plate and the side plate to be welded are placed on the base 1, and the equipment is started, at this time, the movable end of the hydraulic telescopic rod 2 extends downward, pushes the lower pressing block 3 fixed thereon to move downward, the moving lower pressing block 3 drives the fixed U-shaped guide rail 5 to move downward, because the sliding welding frame 6 slides on the U-shaped guide rail 5, the sliding welding frame 6 also moves downward, and the sliding welding frame 6 and the lower pressing plate 8 are connected through the sliding prism 9, so that the sliding welding frame 6 and the lower pressing plate 8 can only move linearly upward and downward, and meanwhile, the sliding of the sliding welding frame 6 can extrude the compression spring 10 below, and the pressure makes the rolling wheel 12 installed on the lower pressing plate 8 closely adhere to the surface of the welding piece, and when the sliding welding frame 6 drives the lower pressing plate 8 to move, the rolling wheel 12 can uniformly roll on both sides of the welding seam. The rolling action helps to eliminate the residual stress generated in the welding process, reduces the welding deformation, and improves the welding quality.

[0044] The rolling wheel 12 is made of metal material, the rolling wheel 12 is provided with a one-way structure, and the surface of the rolling wheel 12 is provided with a grid pattern.

[0045] The funnel-shaped cross-section of the guide rail design is ingeniously matched with the spindle-shaped rolling wheel 7, which can significantly reduce the shaking phenomenon of the sliding welding frame 6 during movement, thereby greatly improving the stability of the welding operation. The contact area between the spindle-shaped rolling wheel 7 and the funnel-shaped guide rail is larger than that of the traditional design, which makes the pressure distribution more uniform, effectively avoiding the problem of excessive wear of the guide rail caused by local pressure concentration, thereby prolonging the service life of the equipment. In addition, this unique structural design also brings another significant advantage: when the lower pressing block 3 drives the U-shaped guide rail 5 fixed thereon to move downward, the upper side of the U-shaped guide rail 5 can stably abut against the rolling wheel 7 below, and through the rolling wheel 7, a uniform extrusion force is exerted on the welding part below, achieving precise limiting effect, thereby preventing the welding part from deforming during welding. Similarly, when the lower pressing block 3 drives the U-shaped guide rail 5 fixed thereon to move upward, the lower side of the U-shaped guide rail 5 can smoothly push the rolling wheel 7 to move upward, thereby driving the entire sliding welding frame 6 to move upward and away from the welding part below.

[0046] When the sliding welding frame 6 pushes the lower pressing plate 8 to move, the cooling assembly needs to be located at the rear position of the movement direction of the laser welding gun 4 during the welding process because the cooling assembly needs to cool the welded seam position after welding. The hot air generated during welding has an impact on the cooling of the rear seam, causing the seam to deform again. The overall triangular pyramid shape of the protective cover 14 can efficiently guide the hot air generated during welding out. The flow guide pipe 16 is responsible for guiding the flow of cooling medium, allowing cooling gas to enter the protective cover 14 to cool the seam at the bottom of the protective cover 14. The triangular pyramid structure of the protective cover 14 not only protects the flow guide pipe 16 from damage caused by spatter during welding, but also changes the direction of the airflow to some extent, making the cooling effect more uniform. The inclined bottom of the air pipe 11 is beneficial to the air flow from the front direction to the position that needs to be cooled in front of the laser welding gun 4, avoiding the impact of external air on the laser welding during movement and avoiding the decline in product quality after welding. At the same time, the air flow is guided to the position that needs to be cooled, ensuring that each part of the welding part can be effectively cooled, thereby improving the welding quality.

[0047] It should be noted that the rolling wheel 7 and the U-shaped guide rail 5 are in clearance fit, which will inevitably produce a certain amount of mutual movement when the U-shaped guide rail 5 drives the sliding welding frame 6 to move up and down, causing the rolling pin 19 to frequently rub against the side wall of the U-shaped guide rail 5, resulting in severe deformation of the U-shaped guide rail 5 or the rolling pin 19. Therefore, the rolling pin 19 can move up and down without interfering with the normal rotation of the rolling pin 19, and the friction between the rolling wheel and the side wall of the U-shaped guide rail 5 is avoided by moving up and down.

[0048] When the sliding welding frame 6 drives the laser welding gun 4 to move to the end of welding, the U-shaped guide rail drives the sliding welding frame 6 to rise and slide back to the original position, and the guide plate after welding is taken out, and the next guide plate welding is continued.

[0049] The above describes one specific embodiment of the present application in detail in combination with the drawings, but the present application is not limited to the above described embodiment. For those skilled in the art, various changes, modifications, replacements and variations of the embodiments without departing from the principles and ideas of the present application should still fall within the protection scope of the present application.

Claims

1. A high-strength alloy laser welding machine tool for guide plates, comprising a base (1) and a laser welding gun (4), said base (1) being provided with a placing groove, characterized in that, The base (1) is fixedly installed with a hydraulic telescopic rod (2) above, the bottom of the hydraulic telescopic rod (2) is fixedly installed with a lower pressing block (3), the lower pressing block (3) is fixedly installed with a U-shaped guide rail (5) above, the U-shaped guide rail (5) is slidably connected with a sliding welding frame (6), the sliding welding frame (6) is installed with a driving motor (17), the output shaft of the driving motor (17) is installed with a roller (19) abutting against the U-shaped guide rail (5), the sliding welding frame (6) is installed with a plurality of rolling wheels (12), the rolling wheels (12) are divided into two groups, each group of the rolling wheels (12) is provided with two and symmetrically arranged at both sides of the welding seam, the laser welding gun (4) is fixedly installed on the sliding welding frame (6), the sliding welding frame (6) is installed with a cooling assembly, the driving motor (17) drives the roller (19) to rotate, the rotating roller (19) drives the sliding welding frame (6) to move, the sliding welding frame (6) drives the laser welding gun (4) to move to carry out laser welding, at the same time, drives the rolling wheels (12) and the cooling assembly to move on the welding piece, the roller (19) is provided with a sliding groove, the sliding groove is slidably connected with a limiting prism (18), the limiting prism (18) is fixedly installed with the output shaft of the driving motor (17), the outer side of the roller (19) is pasted with a rubber sleeve (20) through glue, the side wall of the U-shaped guide rail (5) is provided with a tooth-shaped notch (21), the roller (19) is rollingly connected in the tooth-shaped notch (21).

2. A guide plate high strength alloy laser welding machine according to claim 1, characterized in that, The sliding welding frame (6) is fixedly installed with a sliding prism (9), the sliding prism (9) is slidably connected with a lower pressing plate (8), the sliding welding frame (6) and the lower pressing plate (8) abut against a compression spring (10), the compression spring (10) is sleeved on the sliding prism (9), the lower pressing plate (8) is fixedly installed with a plurality of mounting plates (23), the rolling wheels (12) are rollingly connected on the plurality of mounting plates (23), the laser welding gun (4) is installed on the lower pressing plate (8).

3. A guide plate high strength alloy laser welding machine according to claim 2, characterized in that, The cross section of the U-shaped guide rail (5) is funnel-shaped, the sliding welding frame (6) is rotatably connected with two symmetrically arranged rotating plates, each rotating plate is rotatably connected with a rolling wheel (7), the rolling wheel (7) slides on the U-shaped guide rail (5), the rolling wheel (7) is integrally provided in a spindle shape.

4. A guide plate high strength alloy laser welding machine according to claim 3, wherein, The cooling assembly comprises a flow guide pipe (16), the flow guide pipe (16) is fixedly installed with a protective cover (14), the protective cover (14) is integrally provided in a triangular pyramid shape, the pointed cone side of the protective cover (14) is arranged towards the mounting bracket (15), the flow guide pipe (16) is connected with a cooling device, the lower pressing plate (8) is fixedly installed with an air pipe (11), the air pipe (11) is connected with the flow guide pipe (16) through a pipeline (13), the air pipe (11) is integrally provided in a trapezoidal shape, the bottom of the trapezoidal shape is arranged in an inclined manner and is parallel to the surface of the welding piece.

5. A guide high strength alloy laser welding machine tool according to claim 2, wherein, The lower pressing plate (8) is fixedly provided with a mounting rack (15), two symmetrically arranged threaded holes are formed in the mounting rack (15), a limiting screw (24) is threadedly connected in each threaded hole, and the laser welding gun (4) is placed between the two limiting screws (24) and fixed on the mounting rack (15) through the limiting screws (24).

6. A guide high strength alloy laser welding machine tool according to claim 4, wherein, The bottom of the air pipe (11) and the bottom of the protective cover (14) are fixedly provided with silica gel strips.

7. A guide high strength alloy laser welding machine tool as defined in claim 1 wherein, The rolling wheel (12) is made of metal material, a one-way structure is installed in the rolling wheel (12), and a grid pattern is formed on the surface of the rolling wheel (12).

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