Automatic wire feeding device for laser cladding metal additive manufacturing

Abstract

The utility model discloses an automatic wire supplementing device of laser cladding metal additive manufacturing, including cabin body and be connected to the guide rail of cabin body inner wall bottom and be connected in the guide rod of cabin body inner wall top, the inside one side of cabin body is provided with the line storage guide plate, the surface of guide rail is located the lower side of line storage guide plate and is provided with the feeding assembly of storing and feeding to the wire material disc, the wire feeding carrier seat one side of feeding assembly is located the inside of cabin body and is provided with the lifting carrier plate, the upper side of lifting carrier plate is provided with the material guide component of assisting empty wire material disc removal, the surface of guide rod is swingly connected with the moving plate through electric telescopic link, and the bottom of moving plate is connected with the line supplementing assembly of wire material disc movement supplementing through the lifting telescopic link, the utility model discloses can continuously feed wire material disc and supplement wire, effectively reduce the time of silk change, further improve the efficiency of supplementing wire, at the same time, reduce the uncertain factor of silk change operation of human, improve the stability of work quality.

Description

Technical Field

[0001] This utility model relates to the field of metal additive manufacturing technology, specifically to an automatic wire replenishment device for laser cladding metal additive manufacturing. Background Technology

[0002] Additive manufacturing, commonly known as 3D printing, integrates computer-aided design, materials processing and forming technologies. Based on digital model files, it uses software and CNC systems to deposit specialized metallic, non-metallic, and medical / biomaterials layer by layer through methods such as extrusion, sintering, melting, photopolymerization, and spraying to create physical objects. Currently, in metal additive manufacturing technology, the raw materials fed in are mainly in the form of powder and filament. When using filament as a raw material, the filament usually needs to be wound on a spool.

[0003] As disclosed in the prior art, Chinese utility model patent CN213317689U discloses a filament feeding device for metal 3D printing, comprising a first housing, a second housing fixedly mounted at the bottom of the first housing, a rotating shaft inside the first housing with a filament reel on the rotating shaft, a fixed plate fixedly mounted inside the first housing via a sliding mechanism, a circular column fixedly mounted on the fixed plate via a telescopic rod, a groove on the first housing with a threaded rod inside the groove, a handwheel fixedly connected to one end of the threaded rod, and a threaded sleeve threadedly connected to the threaded rod, an active pressing shaft and a driven pressing shaft inside the first housing, and a servo motor fixedly mounted inside the second housing. However, this patent does not store filament in the housing in advance, making it cumbersome to replace the filament in the reel each time it runs out, and resulting in a long filament replacement time, increasing working time and affecting work efficiency.

[0004] The cited patent reveals the aforementioned problems in the prior art, therefore we need to propose an automatic wire-filling device for laser cladding metal additive manufacturing. Utility Model Content

[0005] The purpose of this invention is to provide an automatic wire replenishment device for laser cladding metal additive manufacturing, which can automatically and continuously feed and replenish wire onto the wire spool, effectively reducing wire replacement time and further improving wire replenishment efficiency. At the same time, it reduces the uncertainty of manual wire replacement operations and improves the stability of work quality, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides: an automatic wire replenishment device for laser cladding metal additive manufacturing, comprising a chamber, a guide rail connected to the bottom of the inner wall of the chamber, and a guide rod connected to the top of the inner wall of the chamber; a wire storage guide plate is provided on one side of the interior of the chamber, and a feeding component for storing and feeding wire reels is provided on the surface of the guide rail below the wire storage guide plate; a lifting carrier plate is provided on the wire feeding seat side of the feeding component inside the chamber, and a guiding component for assisting the removal of empty wire reels is provided above the lifting carrier plate; a moving plate is movably connected to the surface of the guide rod via an electric telescopic rod, and a wire replenishment component for moving and replenishing wire reels is connected to the bottom of the moving plate via a lifting telescopic rod.

[0007] Preferably, the feeding assembly includes: a first push rod embedded in the inner wall of the chamber, and a protective baffle connected to the top side of the wire feeding carrier; wherein the surface of the protective baffle is slidably connected to the bottom of the inner wall of the wire storage guide plate, and the bottom of the wire feeding carrier is slidably mounted on the surface of the guide rail.

[0008] Preferably, the top of the wire feeding carrier is provided with an upper wire seat for feeding wire spools, and one side of the upper wire seat is provided with a lower wire seat for unloading empty wire spools.

[0009] Preferably, a second push rod is embedded in the bottom of the inner cavity of the cabin, and the extended end of the second push rod is connected to the bottom of the lifting platform. The lifting platform is configured to cooperate with the lower line seat.

[0010] Preferably, the material guiding assembly includes: a limiting block installed on the inner wall of the chamber, and a movable guide plate disposed on the top of the limiting block; wherein, one side of the movable guide plate is connected to the inner wall of the chamber via a hinge shaft, and the surface of the hinge shaft is provided with a torsion spring that cooperates with the movable guide plate.

[0011] Preferably, the wire replenishment assembly includes: a mounting frame connected to the bottom end of the lifting telescopic rod, and a dual-axis motor installed inside the mounting frame; wherein, the output end of the dual-axis motor is driven by a lead screw, and a positioning clamp for clamping the wire reel is movably mounted on the surface of the lead screw.

[0012] Preferably, the movable plate is connected to connecting cylinders on both sides, and the inner wall of the connecting cylinder is slidably connected to the surface of the guide rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model utilizes a combination of structures including a cabin, a wire storage guide plate, a guide rail, a guide rod, a moving plate, a feeding assembly, a guiding assembly, and a wire replenishment assembly. The feeding assembly, with its wire delivery carrier moving along the guide rail, achieves precise positioning and transport of new and old wire reels. During feeding, a protective baffle extends to prevent the wire reels stored on the wire storage guide plate from jamming, ensuring stable storage. The guiding assembly, employing a torsion spring and hinged shaft design, allows the empty wire reel on the lifting plate to be pushed onto the movable guide plate by a second push rod. Then, relying on gravity and the tilting of the movable guide plate, the reel is automatically discharged from the wire reel outlet, completing the automatic and non-destructive unloading of empty wire reels with a smooth and efficient process. Furthermore, the wire replenishment assembly's dual-axis motor drives a lead screw mechanism, controlling the synchronous or reverse movement of the two positioning clamps. This allows it to adapt to wire reels of different specifications, achieving precise and secure clamping of their shafts. This ensures that the wire reels will not loosen or shift during movement and installation, laying a solid foundation for smooth wire feeding and further improving the efficiency of wire feeding and replenishment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the cabin of this utility model;

[0017] Figure 3 This is a schematic diagram of the wire feeding carrier structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the positioning clamp structure of this utility model.

[0019] In the diagram: 1. Cabin; 2. Wire storage guide plate; 3. Guide rail; 4. First push rod; 5. Wire delivery carrier; 6. Protective baffle; 7. Upper wire seat; 8. Lower wire seat; 9. Second push rod; 10. Lifting carrier plate; 11. Limit block; 12. Movable guide plate; 13. Torsion spring; 14. Wire reel outlet; 15. Guide rod; 16. Electric telescopic rod; 17. Moving plate; 18. Connecting cylinder; 19. Lifting telescopic rod; 20. Mounting frame; 21. Dual-axis motor; 22. Lead screw; 23. Positioning clamp; 24. Wire replenishment compartment. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides an automatic wire replenishment device for laser cladding metal additive manufacturing, including a chamber 1, a guide rail 3 connected to the bottom of the inner wall of the chamber 1, and a guide rod 15 connected to the top of the inner wall of the chamber 1; a wire storage guide plate 2 is provided on one side of the interior of the chamber 1, and a feeding component for storing and feeding wire reels is provided on the surface of the guide rail 3 below the wire storage guide plate 2; a lifting carrier plate 10 is provided on one side of the wire feeding carrier 5 of the feeding component inside the chamber 1, and a guiding component for assisting the empty wire reel to be moved out is provided above the lifting carrier plate 10; a moving plate 17 is movably connected to the surface of the guide rod 15 through an electric telescopic rod 16, and a wire replenishment component for moving and replenishing wire reels is connected to the bottom of the moving plate 17 through a lifting telescopic rod 19.

[0022] It is worth noting that through the coordinated arrangement of structures such as the cabin 1, wire storage guide plate 2, guide rail 3, guide rod 15, moving plate 17, feeding assembly, guiding assembly, and wire replenishment assembly, a complete automatic material changing system is constructed by integrating the feeding assembly, guiding assembly, and wire replenishment assembly. This system can automatically remove the empty wire reel when it runs out of wire and grab a fully loaded new wire reel from the feeding area for replacement, further reducing human intervention, completing the entire wire replenishment process, minimizing production interruptions caused by material changes, and greatly improving the continuous operation time and overall production efficiency of the laser cladding equipment.

[0023] Specifically, the feeding assembly includes: a first push rod 4 embedded in the inner wall of the chamber 1, and a protective baffle 6 connected to the top side of the wire feeding carrier 5; wherein, the surface of the protective baffle 6 is slidably connected to the bottom of the inner wall of the wire storage guide plate 2, and the bottom of the wire feeding carrier 5 is slidably installed on the surface of the guide rail 3.

[0024] Furthermore, the first push rod 4 is a drive structure that pushes the wire feeding carrier 5 to feed the wire. The protective baffle 6 is used to limit the wire reel on the wire storage guide plate 2 during the feeding process of the wire feeding carrier 5, so as to prevent the bottom from jamming. The wire storage guide plate 2 is the area where the wire reel is stored.

[0025] The top of the wire feeding carrier 5 is provided with an upper wire seat 7 for feeding wire spools, and a lower wire seat 8 for unloading empty wire spools is provided on one side of the upper wire seat 7. A second push rod 9 is embedded in the bottom of the inner cavity of the cabin 1. The protruding end of the second push rod 9 is connected to the bottom of the lifting carrier 10, and the lifting carrier 10 is configured to cooperate with the lower wire seat 8.

[0026] The upper wire seat 7 is a structure that limits the movement of the wire spool. The wire spool will be fed into the upper wire seat 7 in sequence through the wire storage guide plate 2. The lower wire seat 8 is a structure that unloads the empty wire spool clamped by the positioning clamp plate 23 and the wire replenishment component. The lifting plate 10 and the lower wire seat 8 are staggered and can be used to conveniently unload the empty wire spool when raised and lowered with the second push rod 9.

[0027] The material guiding assembly includes: a limiting block 11 installed on the inner wall of the chamber 1, and a movable guide plate 12 disposed on the top of the limiting block 11; wherein, one side of the movable guide plate 12 is connected to the inner wall of the chamber 1 via a hinge shaft, and a torsion spring 13 cooperating with the movable guide plate 12 is disposed on the surface of the hinge shaft.

[0028] In addition, the movable guide plate 12 is inclined, and the bottom end of the movable guide plate 12 is provided with a wire reel outlet 14 for empty wire reel to be discharged. After the lifting plate 10 is lifted to the top of the movable guide plate 12 by the second push rod 9, the movable guide plate 12 will be automatically reset by the action of the torsion spring 13. After the second push rod 9 is retracted, the empty wire reel will fall on the movable guide plate 12. With the help of gravity and the inclination of the movable guide plate 12, it can be discharged from the wire reel outlet 14.

[0029] The cable replenishment assembly includes: a mounting frame 20 connected to the bottom end of the lifting telescopic rod 19, and a dual-axis motor 21 installed inside the mounting frame 20; wherein, the output end of the dual-axis motor 21 is driven by a lead screw 22, and a positioning clamping plate 23 for clamping the cable reel is movably mounted on the surface of the lead screw 22. Connecting cylinders 18 are connected to both sides of the moving plate 17, and the inner wall of the connecting cylinder 18 is slidably connected to the surface of the guide rod 15.

[0030] Furthermore, a wire replenishment compartment 24 communicating with the cabin 1 is provided below the guide rod 15. The mounting frame 20 is the result of assembling the dual-axis motor 21 and the lead screw 22. The dual-axis motor 21 is a structure that drives the lead screw 22, thereby controlling the positioning clamp 23 to move in opposite directions or in the opposite direction, realizing the clamping and unloading of the empty wire spool. The connecting cylinder 18 is a structure in which the moving plate 17 slides with the guide rod 15, thereby moving in conjunction with the electric telescopic rod 16 to complete the function of wire replenishment.

[0031] By integrating feeding, guiding, and replenishment components, a complete automated material changing system has been constructed. When the current wire reel is depleted, it automatically removes the empty reel and retrieves a fully loaded new reel from the feeding area for replacement. This further reduces manual intervention, completes the entire replenishment process, minimizes production interruptions caused by material changes, and significantly improves the continuous operation time and overall production efficiency of the laser cladding equipment.

[0032] The wire feeding carrier in the feeding assembly moves along the guide rail, achieving precise positioning and conveying of new and old wire reels. During feeding, the protective baffle 6 extends to prevent the wire reels stored on the wire storage guide plate 2 from jamming, ensuring stable storage. The guiding assembly utilizes a torsion spring and hinged shaft design on a movable guide plate. After the second push rod 9 pushes the empty wire reel on the lifting carrier plate 10 onto the movable guide plate 12, gravity, combined with the tilting of the movable guide plate 12, automatically discharges the empty wire reel from the wire reel outlet, completing the automatic and non-destructive unloading of the empty wire reel. The process is smooth and efficient. Furthermore, the dual-axis motor driving the lead screw mechanism of the replenishment assembly controls the synchronous or reverse movement of the two positioning clamps. This allows for the adaptation to wire reels of different specifications, achieving precise and secure clamping of their axes, ensuring that the wire reels do not loosen or shift during movement and installation, laying a solid foundation for subsequent smooth wire feeding.

[0033] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic wire feeding device for laser cladding metal additive manufacturing, characterized in that, include: The cabin (1) and the guide rail (3) connected to the bottom of the inner wall of the cabin (1) and the guide rod (15) connected to the top of the inner wall of the cabin (1); A wire storage guide plate (2) is provided on one side of the interior of the cabin (1), and a feeding component for storing and feeding wire reels is provided on the surface of the guide rail (3) below the wire storage guide plate (2). The feeding assembly has a lifting plate (10) located inside the cabin (1) on one side of the wire feeding carrier (5). A guide assembly for assisting the removal of empty wire reel is provided above the lifting plate (10). The surface of the guide rod (15) is movably connected to a movable plate (17) via an electric telescopic rod (16), and the bottom of the movable plate (17) is connected to a wire replenishment assembly for moving and replenishing the wire reel via a lifting telescopic rod (19).

2. The automatic wire feeding device for laser cladding metal additive manufacturing according to claim 1, characterized in that: The feeding assembly includes: The first push rod (4) is embedded in the inner wall of the cabin (1), and A protective baffle (6) is connected to one side of the top of the wire feeder (5); The protective baffle (6) is slidably connected to the bottom of the inner wall of the wire storage guide plate (2), and the bottom of the wire delivery carrier (5) is slidably installed on the surface of the guide rail (3).

3. The automatic wire feeding device for laser cladding metal additive manufacturing according to claim 2, characterized in that: The top of the wire feeding carrier (5) is provided with an upper wire seat (7) for feeding wire spools, and a lower wire seat (8) for unloading empty wire spools is provided on one side of the upper wire seat (7).

4. The automatic wire feeding device for laser cladding metal additive manufacturing according to claim 3, characterized in that: The bottom of the inner cavity of the cabin (1) is fitted with a second push rod (9), the extended end of the second push rod (9) is connected to the bottom of the lifting plate (10), and the lifting plate (10) is configured to cooperate with the lower line seat (8).

5. The automatic wire feeding device for laser cladding metal additive manufacturing according to claim 1, characterized in that: The feeding assembly includes: The limiting block (11) installed on the inner wall of the cabin (1), and The movable guide plate (12) is disposed on the top of the limiting block (11); One side of the movable guide plate (12) is connected to the inner wall of the cabin (1) via a hinge shaft, and the surface of the hinge shaft is provided with a torsion spring (13) that cooperates with the movable guide plate (12).

6. The automatic wire feeding device for laser cladding metal additive manufacturing according to claim 1, characterized in that: The patching component includes: The mounting frame (20) connected to the bottom end of the lifting telescopic rod (19), and A dual-axis motor (21) is installed inside the mounting frame (20); The output end of the dual-axis motor (21) is connected to a lead screw (22), and a positioning clamp (23) for clamping the wire disc is movably mounted on the surface of the lead screw (22).

7. The automatic wire feeding device for laser cladding metal additive manufacturing according to claim 1, characterized in that: The movable plate (17) is connected to two sides by connecting cylinders (18), and the inner wall of the connecting cylinders (18) is slidably connected to the surface of the guide rod (15).

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