Die laser welding machine

Abstract

The invention provides a mold laser welding machine, and belongs to the technical field of laser welding machines, the mold laser welding machine comprises a base, the base is provided with a main control table and an auxiliary control table, one side of the main control table is provided with a water tank, the main control table is provided with a moving arm, the moving arm is provided with a welding part, the auxiliary control table is provided with a welding table, and the welding table is provided with a welding head. A sliding mechanism is arranged between the welding table and the auxiliary control table, a wire feeding mechanism is fixed to the welding table, and a traction mechanism is installed on the front side of the wire feeding mechanism. The problems that a worker holds a welding wire for laser welding for a long time, hand fatigue is easily caused, the overall welding precision is reduced, welding needs to be stopped and the welding wire needs to be pulled out again after the welding wire is welded for a certain distance in the welding process, the working efficiency is reduced, and the welding cost is reduced are solved. And when the force for drawing out the welding wire is too large, the welding wire and a welding point are broken.

Description

Technical Field

[0001] This invention belongs to the field of laser welding machine technology, specifically a mold laser welding machine. Background Technology

[0002] Laser welding machines are machines used for laser material processing. According to their working method, they are divided into laser mold welding machines, automatic laser welding machines, laser spot welding machines, and fiber optic transmission laser welding machines. Laser welding uses high-energy laser pulses to locally heat materials in a small area. The energy of laser radiation diffuses into the interior of the material through heat conduction, melting the material to form a specific molten pool to achieve the purpose of welding.

[0003] CN219254485U discloses a mold laser welding machine. When using this welding machine, workers experience muscle soreness and hand tremors when holding the welding wire for a long time, which greatly reduces the welding accuracy and causes deviations from the welding point. In addition, during the welding process, welding usually needs to be stopped and the welding wire needs to be pulled out again after holding the welding wire for a certain distance, which reduces work efficiency. Furthermore, if the force used to pull out the welding wire is too great, it can cause the welding wire to break contact with the welding point.

[0004] In summary, existing laser welding machines require workers to hold the welding wire for extended periods, which can easily lead to hand fatigue and a decrease in overall welding accuracy. Furthermore, welding requires stopping and re-extracting the welding wire after a certain distance, reducing work efficiency. Excessive force when retracting the wire can also cause the wire to break contact with the welding point. This invention provides a mold laser welding machine that, through the design of a wire feeding and traction mechanism, significantly improves the stability of the welding wire and increases welding accuracy during prolonged welding, while eliminating the need for manual wire removal during machine downtime. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] Given the following technical problems in the existing technology: how to design a laser welding machine that can stably feed wire, so as to prevent smearing during the welding process and improve welding accuracy and wire feeding stability.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a mold laser welding machine, including a base, a main control console and a secondary control console on the base, a water tank on one side of the main control console, a movable arm on the main control console, a welding component on the movable arm, a welding table on the secondary control console, a sliding mechanism between the welding table and the secondary control console, a wire feeding mechanism fixed on the welding table, and a traction mechanism installed on the front side of the wire feeding mechanism.

[0008] As a preferred technical solution for a mold laser welding machine, the wire feeding mechanism includes a first fixing plate, a second fixing plate, and a third fixing plate that are fixed at equal intervals at the edge of the welding table.

[0009] As a preferred technical solution for a mold laser welding machine, a first rotating shaft is rotatably mounted in the first fixed plate, a second rotating shaft is rotatably mounted in the second fixed plate, and a third rotating shaft is rotatably mounted in the third fixed plate. The left end of the first rotating shaft extends to the outside of the first fixed plate and a handle is fixed at the end. The second rotating shaft is located below the first rotating shaft, and its left and right ends are rotatably connected to the first fixed plate and the third fixed plate, respectively. The third rotating shaft is located above the second rotating shaft, and its left end is rotatably connected to the second fixed plate. The right end of the third rotating shaft extends to the outside of the third fixed plate.

[0010] As a preferred technical solution for a mold laser welding machine, a first gear is fixed on a first rotating shaft between the first fixed plate and the second fixed plate, a second gear is fixed on a second rotating shaft between the first fixed plate and the second fixed plate, and the first gear meshes with the second gear. A third gear is fixed on a second rotating shaft between the second fixed plate and the third fixed plate, and a fourth gear is fixed on a third rotating shaft between the second fixed plate and the third fixed plate, and the third gear meshes with the fourth gear. A first sprocket is fixed at one end of the third rotating shaft extending to the outside of the third fixed plate. A wire feeding bracket is fixed on the side of the third fixed plate, and a wire feeding wheel is rotatably mounted on the wire feeding bracket. The third rotating shaft drives the wire feeding wheel to rotate.

[0011] As a preferred technical solution for a mold laser welding machine, the traction mechanism includes a traction bracket fixed to the front side of the wire feeding wheel. The traction bracket is sequentially equipped with a guide wheel group, a pressure wheel group, and a traction wheel group. An L-shaped bracket plate is fixed to the outer side of the traction wheel group. A traction drive unit is provided on the bracket plate. A tapered guide tube is fixed at the inlet and outlet of the traction bracket.

[0012] As a preferred technical solution for a mold laser welding machine, the guide wheel assembly includes two guide wheels rotatably mounted between the traction brackets, and the conduit at the inlet faces the middle of the two guide wheels.

[0013] As a preferred technical solution for a mold laser welding machine, the traction bracket is provided with an upper sliding groove and a lower sliding groove on both sides of the pressure roller assembly. The top of the upper sliding groove and the bottom of the lower sliding groove are fixed with a base. An elastic element is fixed on the opposite side of the two bases. A slider is fixed at the bottom of the two elastic elements. The pressure roller assembly includes a pressure roller that is rotatably mounted between two sliders of the same height via a central shaft.

[0014] As a preferred technical solution for a mold laser welding machine, the traction drive unit includes a drive shaft rotatably mounted on the support plate and the outer wall of the traction support. A second sprocket is fixed on the drive shaft. The traction wheel set includes two traction wheels rotatably mounted between the traction support. The rotation shaft of the upper traction wheel is fixedly connected to the drive shaft. The first sprocket and the second sprocket are connected by a chain.

[0015] As a preferred technical solution for a mold laser welding machine, the guide wheel, pressure wheel and traction wheel are all provided with grooves on their surfaces. The groove surface of the traction wheel is provided with a ring, the surface of the ring is provided with teeth, and a rubber pad is fixed on the surface of the teeth. The ring and the groove are connected by a spring.

[0016] As a preferred technical solution for a mold laser welding machine, there is a gear ratio difference between the first sprocket and the second sprocket.

[0017] The beneficial effects of this invention are:

[0018] 1. The present invention, through the setting of the wire feeding mechanism, through the linkage of multiple gears, rotating shafts and wire feeding wheels, eliminates the need for manual hand-holding of the welding wire, avoids shaking caused by prolonged manual handling, greatly improves the stability of wire feeding, and enables continuous wire feeding without stopping the machine to remove the welding wire, avoiding excessive pulling force that could cause the welding point to break contact with the welding wire, thus improving welding quality and work efficiency.

[0019] 2. By setting up a traction mechanism, the present invention ensures that the welding wire remains taut during the wire feeding process through the traction of the traction wheel, thus preventing the welding wire from bending when fed from the wire feeding wheel and further improving the overall wire feeding stability. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0022] Figure 2 This is a front view schematic diagram of the wire feeding mechanism according to an embodiment of the present invention;

[0023] Figure 3 This is a top view schematic diagram of the wire feeding mechanism and traction mechanism according to an embodiment of the present invention;

[0024] Figure 4 This is a side view of the wire feeding mechanism and traction mechanism according to an embodiment of the present invention;

[0025] Figure 5 This is a cross-sectional view of the traction mechanism according to an embodiment of the present invention;

[0026] Figure 6 This is a cross-sectional view of the traction wheel according to an embodiment of the present invention;

[0027] Figure 7 This is an enlarged structural diagram of point a in an embodiment of the present invention;

[0028] Figure 8 This is an enlarged structural diagram of point b in an embodiment of the present invention;

[0029] Reference numerals: 100, base; 200, main control console; 300, secondary control console; 400, water tank; 500, moving arm; 600, welding component; 700, welding table; 800, wire feeding mechanism; 801, first fixed plate; 802, second fixed plate; 803, third fixed plate; 804, first rotating shaft; 805, second rotating shaft; 806, third rotating shaft; 807, handle; 808, first gear; 809, second gear; 810, third gear; 811, fourth gear; 812, First sprocket; 813, Wire feed bracket; 814, Wire feed wheel; 900, Traction mechanism; 901, Traction bracket; 902, Guide wheel assembly; 903, Pressure wheel assembly; 904, Traction wheel assembly; 905, Support plate; 906, Traction drive unit; 907, Guide tube; 908, Guide wheel; 909, Base; 910, Elastic element; 911, Slider; 912, Pressure wheel; 913, Drive shaft; 914, Second sprocket; 915, Traction wheel; 916, Chain; 917, Ring. Detailed Implementation

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0033] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0034] Example 1

[0035] Reference Figures 1-8 This embodiment provides a mold laser welding machine, including a base 100, a main control console 200 and a secondary control console 300 on the base 100, a water tank 400 on one side of the main control console 200, a movable arm 500 on the main control console 200, a welding component 600 on the movable arm 500, a welding table 700 on the secondary control console 300, a sliding mechanism between the welding table 700 and the secondary control console 300, a wire feeding mechanism 800 fixed on the welding table 700, and a traction mechanism 900 installed on the front side of the wire feeding mechanism 800.

[0036] Specifically, the base 100 is made of high-strength cast iron in one piece, providing stable support for the entire equipment and effectively reducing vibration transmission during the welding process. The main control console 200 integrates core control modules such as laser power adjustment and pulse parameter setting, which can be used to quickly call preset welding programs and monitor the welding status in real time. A water tank 400 is provided on one side of the main control console 200. The water tank 400 is connected to the laser generator, focusing lens and other heat-generating components through a circulating water pipeline to continuously supply cooling water, ensuring that the equipment will not overheat during long-term high-power welding. The main control console 200 is equipped with a moving arm 500, which adopts precision ball screw drive and supports precise micro-adjustment of the X and Y axes. It can drive the welding component 600 to accurately align with mold defects. The welding component 600 is provided on the moving arm 500, including a welding head, magnifying eyepiece, lamp head and gas head. The welding head has a built-in focusing lens group, which can focus the laser beam to an adjustable spot of 0.1-1mm. The magnifying eyepiece has optical magnification function to assist operators in observing fine weld seams; the lamp head is an LED cold light source, providing shadowless illumination; the gas head can output argon protective gas to isolate the weld seam from air and prevent oxidation. The auxiliary control console 300 is equipped with a welding table 700, the surface of which is covered with a high-hardness wear-resistant steel plate. A sliding mechanism is provided between the welding table 700 and the auxiliary control console 300, including two lead screws that control the left and right movement of the welding table 700 and a control handle. The lead screws adopt a trapezoidal thread design and work with bronze nuts to achieve smooth transmission. The operator can drive the welding table 700 to move smoothly back, forth, left, and right by rotating the control handle, which facilitates the adjustment of the mold welding position. A wire feeding mechanism 800 is fixed on the welding table 700. The wire feeding mechanism 800 is responsible for stably feeding the welding wire to the welding area. A traction mechanism 900 is installed on the front side of the wire feeding mechanism 800, which further enhances the stability of the wire feeding and ensures that the welding wire remains taut when it enters the welding point.

[0037] The wire feeding mechanism 800 includes a first fixing plate 801, a second fixing plate 802, and a third fixing plate 803 that are fixed at equal intervals at the edge of the welding table 700.

[0038] Specifically, the first fixing plate 801, the second fixing plate 802, and the third fixing plate 803 are parallel to each other and perpendicular to the surface of the welding table 700, forming a support frame for the wire feeding mechanism 800, providing a stable mounting reference for each shaft and gear. The spacing between the first fixing plate 801, the second fixing plate 802, and the third fixing plate 803 ensures sufficient space when the gears mesh, while also preventing the overall structure from being too loose and affecting the transmission accuracy.

[0039] A first rotating shaft 804 is rotatably mounted in the first fixed plate 801, a second rotating shaft 805 is rotatably mounted in the second fixed plate 802, and a third rotating shaft 806 is rotatably mounted in the third fixed plate 803. The left end of the first rotating shaft 804 extends to the outside of the first fixed plate 801 and a handle 807 is fixed at the end. The second rotating shaft 805 is located below the first rotating shaft 804, and its left and right ends are rotatably connected to the first fixed plate 801 and the third fixed plate 803, respectively. The third rotating shaft 806 is located above the second rotating shaft 805. The left end of the third rotating shaft 806 is rotatably connected to the second fixed plate 802, and the right end of the third rotating shaft 806 extends to the outside of the third fixed plate 803.

[0040] Specifically, the first rotating shaft 804 is the power input shaft of the entire wire feeding mechanism 800. The second rotating shaft 805 serves as an intermediate transmission component, receiving power from the first rotating shaft 804 and transmitting it to subsequent structures. The third rotating shaft 806 is the final output shaft for the wire feeding power, directly driving the wire feeding wheel 814. The left end of the first rotating shaft 804 extends to the outside of the first fixed plate 801, and a handle 807 is fixed at the end. The handle 807 is ergonomically designed with anti-slip textures on the surface for easy access by operators. Power is input via hand crank. The second shaft 805 is located below the first shaft 804, and its left and right ends are rotatably connected to the first fixed plate 801 and the third fixed plate 803, respectively. This cross-plate installation method enhances the stability of the second shaft 805. The third shaft 806 is located above the second shaft 805. The left end of the third shaft 806 is rotatably connected to the second fixed plate 802, and the right end of the third shaft 806 extends to the outside of the third fixed plate 803, providing space for the installation of the first sprocket 812.

[0041] A first gear 808 is fixed on a first rotating shaft 804 located between the first fixed plate 801 and the second fixed plate 802. A second gear 809 is fixed on a second rotating shaft 805 located between the first fixed plate 801 and the second fixed plate 802. The first gear 808 and the second gear 809 mesh. A third gear 810 is fixed on a second rotating shaft 805 located between the second fixed plate 802 and the third fixed plate 803. A fourth gear 811 is fixed on a third rotating shaft 806 located between the second fixed plate 802 and the third fixed plate 803. The third gear 810 and the fourth gear 811 mesh. A first sprocket 812 is fixed at one end of the third rotating shaft 806 extending to the outside of the third fixed plate 803. A wire feeding bracket 813 is fixed on the side of the third fixed plate 803. A wire feeding wheel 814 is rotatably mounted on the wire feeding bracket 813. The third rotating shaft 806 drives the wire feeding wheel 814 to rotate.

[0042] Specifically, a first gear 808 is fixed on a first rotating shaft 804 located between the first fixed plate 801 and the second fixed plate 802, and a second gear 809 is fixed on a second rotating shaft 805 located between the first fixed plate 801 and the second fixed plate 802. The first gear 808 and the second gear 809 mesh, and their gear ratio is designed to achieve first-stage reduction, reducing the load on subsequent transmission components. A third gear 810 is fixed on a second rotating shaft 805 located between the second fixed plate 802 and the third fixed plate 803, and a fourth gear 811 is fixed on a third rotating shaft 806 located between the second fixed plate 802 and the third fixed plate 803. The third gear 810 meshes with the fourth gear 809. The gear 811 meshes, forming a second-stage reduction, further optimizing power transmission efficiency. The third rotating shaft 806 extends to one end of the third fixed plate 803, where a first sprocket 812 is fixed. The first sprocket 812 transmits power to the traction mechanism 900 through the chain 916. A wire feeding bracket 813 is fixed to the side of the third fixed plate 803, providing stable support for the wire feeding wheel 814. The wire feeding wheel 814 is rotatably mounted on the wire feeding bracket 813. The surface of the wire feeding wheel 814 has an annular groove that matches the diameter of the welding wire, which can stably wind and release the welding wire. The third rotating shaft 806 drives the wire feeding wheel 814 to rotate, ensuring that the rotation of the wire feeding wheel 814 is synchronized with the overall transmission system.

[0043] The traction mechanism 900 includes a traction bracket 901 fixed to the front side of the wire feeding wheel 814. The traction bracket 901 is sequentially equipped with a guide wheel assembly 902, a pressure wheel assembly 903, and a traction wheel assembly 904. An L-shaped bracket plate 905 is fixed to the outer side of the traction bracket 901 located on the traction wheel assembly 904. A traction drive unit 906 is provided on the bracket plate 905. A tapered guide tube 907 is fixed at the inlet and outlet of the traction bracket 901.

[0044] Specifically, the traction bracket 901 is made of high-strength alloy material, which can withstand various stresses during the wire feeding process. The traction bracket 901 is equipped with a guide wheel group 902, a pressure wheel group 903, and a traction wheel group 904 in sequence. These three groups of wheels are arranged in sequence along the wire feeding path to realize the guiding, pressing, and traction functions of the welding wire, respectively. An L-shaped bracket plate 905 is fixed on the outer side of the traction bracket 901 and the traction drive unit 906. The bracket plate 905 provides an installation platform for the traction drive unit 906. The traction drive unit 906 is provided on the bracket plate 905 and provides power to the traction wheel group 904 to ensure that the traction action and the wire feeding action are coordinated. A tapered guide tube 907 is fixed at the inlet and outlet of the traction bracket 901. The guide tube 907 at the inlet can guide the welding wire to enter the guide wheel group 902 accurately, and the guide tube 907 at the outlet guides the welding wire to the welding head. The tapered design can prevent the welding wire from scratching when entering and exiting.

[0045] The guide wheel assembly 902 includes two guide wheels 908 rotatably mounted between the traction bracket 901, and the inlet conduit 907 faces the middle of the two guide wheels 908.

[0046] Specifically, the two guide wheels 908 are symmetrically arranged, and the grooves on their surfaces are aligned to form a channel for the welding wire to pass through. The inlet guide tube 907 is directed towards the middle of the two guide wheels 908, which can accurately guide the welding wire into the groove and prevent the welding wire from deviating in the initial stage of entering the traction mechanism 900. The guide wheels 908 are made of wear-resistant plastic, which not only ensures the guiding effect on the welding wire, but also avoids damage to the surface of the welding wire.

[0047] The traction bracket 901 is provided with an upper sliding groove and a lower sliding groove on both sides of the pressure roller assembly 903. The top of the upper sliding groove and the bottom of the lower sliding groove are fixed with a base 909. The opposite side of the two bases 909 is fixed with an elastic element 910. The bottom of the two elastic elements 910 is fixed with a slider 911. The pressure roller assembly 903 includes a pressure roller 912 that is rotatably installed between two sliders 911 at the same height via a central shaft.

[0048] Specifically, the traction bracket 901 is provided with upper and lower sliding grooves on both sides of the pressure roller assembly 903. The length and width of the sliding grooves ensure that the slider 911 can slide smoothly. The top of the upper sliding groove and the bottom of the lower sliding groove are fixed with bases 909, which provide fixing points for the elastic element 910. The elastic element 910 is fixed on the opposite side of the two bases 909. The elastic element 910 can be made of high-quality springs with good elastic recovery ability. The bottom of the two elastic elements 910 is fixed with sliders 911. The sliders 911 are fitted with the sliding grooves with a clearance and can move flexibly along the sliding grooves. The pressure roller assembly 903 includes a pressure roller 912 that is rotatably installed between two sliders 911 at the same height via a central shaft. Under the action of the elastic element 910, the pressure roller 912 can always apply stable pressure to the welding wire, ensuring that the welding wire remains taut during the conveying process. At the same time, when there is a slight deviation in the diameter of the welding wire, the elastic element 910 can be adaptively adjusted by extension and retraction, which enhances the adaptability of the equipment to welding wires of different specifications.

[0049] The traction drive unit 906 includes a drive shaft 913 rotatably mounted on the outer wall of the bracket plate 905 and the traction bracket 901. A second sprocket 914 is fixed on the drive shaft 913. The traction wheel set 904 includes two traction wheels 915 rotatably mounted between the traction bracket 901. The rotation shaft of the upper traction wheel 915 is fixedly connected to the drive shaft 913. The first sprocket 812 and the second sprocket 914 are connected by a chain 916.

[0050] Specifically, the drive shaft 913 is made of high-strength steel and can transmit sufficient torque. A second sprocket 914 is fixed on the drive shaft 913. The second sprocket 914 cooperates with the first sprocket 812 to realize power transmission. Two traction wheels 915 are arranged one above the other, and the grooves on their surfaces are aligned. The rotation shaft of the upper traction wheel 915 is fixedly connected to the drive shaft 913, so that the drive shaft 913 can directly drive the upper traction wheel 915 to rotate. The lower traction wheel 915 is driven to rotate by the welding wire. The first sprocket 812 and the second sprocket 914 are connected by a chain 916. The chain 916 transmission has the characteristics of stable transmission ratio and high efficiency, which can ensure the coordination of the actions between the traction wheel group 904 and the wire feeding wheel 814.

[0051] The guide wheel 908, pressure wheel 912 and traction wheel 915 are all provided with grooves. The groove surface of the traction wheel 915 is provided with a ring 917. The surface of the ring 917 is provided with teeth. A rubber pad is fixed on the surface of the teeth. The ring 917 and the groove are connected by a spring.

[0052] Specifically, the guide wheel 908, pressure wheel 912, and traction wheel 915 all have grooves on their surfaces. The cross-section of the grooves is arc-shaped, which matches the shape of the welding wire and can effectively limit the welding wire. The groove surface of the traction wheel 915 has a ring 917. The ring 917 is made of wear-resistant rubber material and has teeth on its surface. The teeth can enhance the friction between the ring and the welding wire and prevent slippage. A rubber pad is fixed on the surface of the teeth. The rubber pad is soft and can prevent the teeth from damaging the surface of the welding wire. The ring 917 is connected to the groove by a spring. The spring can give the ring 917 a certain buffering capacity. When the welding wire passes through, the ring 917 can make slight adjustments according to the diameter of the welding wire to ensure that the teeth are in close contact with the welding wire and further improve the stability of traction.

[0053] There is a gear ratio difference between the first sprocket 812 and the second sprocket 914.

[0054] Specifically, there is a gear ratio difference between the first sprocket 812 and the second sprocket 914. The diameter of the first sprocket 812 is slightly larger than that of the second sprocket 914. This design makes the rotation speed of the traction wheel 915 slightly higher than that of the wire feeding wheel 814, thereby generating a certain tension during the wire feeding process, ensuring that the welding wire always remains taut and improving welding accuracy. The gear ratio and diameter ratio between the first gear 808, the second gear 809, the third gear 810, the fourth gear 811, the wire feeding wheel 814, the first sprocket 812, and the second sprocket 914 are set entirely according to the actual welding situation. They can be set to feed the wire over a short distance after rotating many times, or to feed the wire over a long distance after rotating a few times, which is entirely determined by the operator and the welding target.

[0055] Working principle: During the welding process, the handle 807 is cranked by hand, which drives the first rotating shaft 804 to rotate. The first rotating shaft 804 drives the first gear 808 to rotate. Since the first gear 808 meshes with the second gear 809, it drives the second rotating shaft 805 to rotate. The third gear 810 and the fourth gear 811 on the second rotating shaft 805 mesh, thereby driving the third rotating shaft 806 to rotate. The third rotating shaft 806 drives the wire feeding wheel 814 to rotate, realizing the wire feeding action. The welding wire enters the guide roller assembly 902 through the tapered guide tube 907 at the inlet. Two guide rollers 908 provide initial guidance to the welding wire, preventing it from deviating. During continuous wire feeding, the welding wire enters the pressure roller assembly 903 from the guide roller assembly 902. The pressure roller assembly 903, under the action of the elastic element 910, exerts significant pressure on the welding wire, ensuring it is firmly pressed by the upper and lower pressure rollers 912, preventing it from loosening during transport. Subsequently, the welding wire enters the traction roller assembly 904, where it is further pulled. The upper traction roller 915 is operated by the hand crank 8. Driven by 07, the first sprocket 812, the second sprocket 914, and the chain 916 achieve synchronous rotation. Due to the gear ratio difference between the first sprocket 812 and the second sprocket 914, the rotation speed of the traction wheel 915 is slightly higher than that of the wire feeding wheel 814, thereby generating a large traction force on the welding wire. This traction force ensures that the welding wire is tightly taut and continuously fed to the underside of the welding head, greatly improving the stability of the entire wire feeding process and the welding accuracy. At the same time, there is no need to stop the machine to pull out the welding wire, avoiding the problem of the welding wire breaking due to excessive force when pulling out the welding wire, effectively improving welding efficiency and quality.

[0056] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A mold laser welding machine, characterized in that: The device includes a base (100), on which a main control console (200) and a secondary control console (300) are mounted. A water tank (400) is mounted on one side of the main control console (200). A movable arm (500) is mounted on the main control console (200), and a welding component (600) is mounted on the movable arm (500). A welding table (700) is mounted on the secondary control console (300). A sliding mechanism is provided between the welding table (700) and the secondary control console (300). A wire feeding mechanism (800) is fixed on the welding table (700), and a traction mechanism (900) is installed on the front side of the wire feeding mechanism (800).

2. The mold laser welding machine according to claim 1, characterized in that: The wire feeding mechanism (800) includes a first fixing plate (801), a second fixing plate (802) and a third fixing plate (803) that are fixed at equal intervals at the edge of the welding table (700).

3. A mold laser welding machine according to claim 2, characterized in that: A first rotating shaft (804) is rotatably mounted in the first fixing plate (801), a second rotating shaft (805) is rotatably mounted in the second fixing plate (802), and a third rotating shaft (806) is rotatably mounted in the third fixing plate (803). The left end of the first rotating shaft (804) extends to the outside of the first fixing plate (801) and a handle (807) is fixed at the end. The second rotating shaft (805) is located below the first rotating shaft (804), and its left and right ends are rotatably connected to the first fixing plate (801) and the third fixing plate (803) respectively. The third rotating shaft (806) is located above the second rotating shaft (805). The left end of the third rotating shaft (806) is rotatably connected to the second fixing plate (802), and the right end of the third rotating shaft (806) extends to the outside of the third fixing plate (803).

4. A mold laser welding machine according to claim 3, characterized in that: A first gear (808) is fixed on a first rotating shaft (804) located between the first fixing plate (801) and the second fixing plate (802). A second gear (809) is fixed on a second rotating shaft (805) located between the first fixing plate (801) and the second fixing plate (802). The first gear (808) and the second gear (809) mesh. A third gear (810) is fixed on a second rotating shaft (805) located between the second fixing plate (802) and the third fixing plate (803). 02) A fourth gear (811) is fixed on the third rotating shaft (806) at the middle of the third fixed plate (803). The third gear (810) meshes with the fourth gear (811). A first sprocket (812) is fixed at one end of the third rotating shaft (806) extending to the outside of the third fixed plate (803). A wire feeding bracket (813) is fixed on the side of the third fixed plate (803). A wire feeding wheel (814) is rotatably mounted on the wire feeding bracket (813). The third rotating shaft (806) drives the wire feeding wheel (814) to rotate.

5. A mold laser welding machine according to claim 4, characterized in that: The traction mechanism (900) includes a traction bracket (901) fixed to the front side of the wire feeding wheel (814). The traction bracket (901) is sequentially equipped with a guide wheel assembly (902), a pressure wheel assembly (903), and a traction wheel assembly (904). An L-shaped bracket plate (905) is fixed to the outer side of the traction bracket (901) and the bracket plate (905) is provided with a traction drive unit (906). A tapered guide tube (907) is fixed at the inlet and outlet of the traction bracket (901).

6. A mold laser welding machine according to claim 5, characterized in that: The guide wheel assembly (902) includes two guide wheels (908) rotatably mounted between the traction bracket (901), and the conduit (907) at the inlet is directed toward the middle of the two guide wheels (908).

7. A mold laser welding machine according to claim 6, characterized in that: The traction bracket (901) is provided with an upper sliding groove and a lower sliding groove on both sides of the pressure roller assembly (903). The top of the upper sliding groove and the bottom of the lower sliding groove are fixed with a base (909). An elastic element (910) is fixed on the opposite side of the two bases (909). A slider (911) is fixed at the bottom of the two elastic elements (910). The pressure roller assembly (903) includes a pressure roller (912) that is rotatably installed between two sliders (911) at the same height via a central shaft.

8. A mold laser welding machine according to claim 7, characterized in that: The traction drive unit (906) includes a drive shaft (913) rotatably mounted on the outer wall of the support plate (905) and the traction bracket (901). A second sprocket (914) is fixed on the drive shaft (913). The traction wheel set (904) includes two traction wheels (915) rotatably mounted between the traction bracket (901). The rotation axis of the upper traction wheel (915) is fixedly connected to the drive shaft (913). The first sprocket (812) and the second sprocket (914) are connected by a chain (916).

9. A mold laser welding machine according to claim 8, characterized in that: The guide wheel (908), pressure wheel (912) and traction wheel (915) are all provided with grooves. The groove surface of the traction wheel (915) is provided with a ring (917). The surface of the ring (917) is provided with teeth. A rubber pad is fixed on the surface of the teeth. The ring (917) and the groove are connected by a spring.

10. A mold laser welding machine according to claim 9, characterized in that: There is a gear ratio difference between the first sprocket (812) and the second sprocket (914).

Images