A device and method for laser cladding repair of metallurgical shear blades

Abstract

This invention relates to the field of laser cladding technology, specifically to a laser cladding repair device and method for metallurgical shear blades. The device includes a processing table, a robotic arm mounted on its surface, a cladding head mounted on the surface of the robotic arm, a powder feeding pipe fixedly connected to the surface of the cladding head, and a support platform on the top of the processing table. A switching mechanism is also provided on the surface of the processing table. This invention uses a first rotating rod to drive a turntable to rotate. With the addition of a first fixed rod and a first movable groove, a fixed block can drive a rack plate to reciprocate, thereby enabling the rack plate to transmit power to the gears. This facilitates the second rotating rod to drive the support platform to rotate in both directions, allowing the position of the metallurgical shear blade on the support platform to be changed. This facilitates moving the metallurgical shear blade to be repaired under the cladding head and moving the repaired metallurgical shear blade away from under the cladding head, reducing downtime and improving overall repair efficiency.

Description

Technical Field

[0001] This invention relates to the field of laser cladding technology, specifically to a laser cladding repair device and method for metallurgical shear blades. Background Technology

[0002] Metallurgical shears are specialized tools used in the metallurgical industry to cut steel materials. Their core function is to cut, slit, or trim steel using shearing force. To restore the geometry and performance of worn or damaged metallurgical shears and extend their service life, laser cladding repair devices are typically used. A laser cladding repair device for metallurgical shears is an automated device based on laser cladding technology, specifically designed for surface repair and strengthening of worn or damaged metallurgical shears. The basic principle of laser cladding is to use a high-energy-density laser beam to simultaneously melt metal powder or wire and the substrate surface, rapidly solidifying it to form a metallurgically bonded, controllable-composition, and high-performance cladding layer on the workpiece surface. Through laser cladding repair, the old shear blade body can be reused, saving on new material procurement costs. Simultaneously, it improves the wear resistance, corrosion resistance, and fatigue resistance of the shear blade surface, enabling the remanufacturing and recycling of waste shears and reducing the generation of discarded shear blades.

[0003] In existing technologies, the cladding repair of metallurgical shear blades often employs a single-station design. This means that while repairing one blade, the operator must wait nearby. After completing the cladding repair of one blade, the metallurgical shear blade must be manually replaced and re-clamped. Consequently, the loading and unloading processes cannot be parallelized with the processing, thus failing to save downtime and improve repair efficiency. Therefore, to solve the above problems, a laser cladding repair device and method for metallurgical shear blades is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a laser cladding repair device and method for metallurgical shear blades, in order to solve the problem mentioned in the background art that when repairing metallurgical shear blades, a single-station design is often used. This means that when repairing a shear blade, the operator needs to wait by the side. After the cladding repair of a shear blade is completed, the metallurgical shear blade needs to be replaced manually and re-clamped. As a result, the loading and unloading and processing processes cannot be carried out in parallel, which does not save downtime effectively and is not conducive to improving repair efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a metallurgical shear blade laser cladding repair device and method, comprising a processing table, a robotic arm disposed on the surface of the processing table, a cladding head mounted on the surface of the robotic arm, a powder feeding pipe fixedly connected to the surface of the cladding head, and a support platform disposed on the top of the processing table; The surface of the processing table is provided with a switching mechanism, and the surface of the support table is provided with a clamping mechanism. The switching mechanism includes a rack plate, which is movably disposed at the bottom of the processing table. A second rotating rod is movably connected to the inner side of the processing table, and a gear is fixedly connected to the bottom end of the second rotating rod. The support platform is fixedly connected to the top end of the second rotating rod. The clamping mechanism includes a connecting block, which is movably disposed on the top of the support platform, and a limit block is fixedly connected to the surface of the connecting block.

[0006] Preferably, the switching mechanism further includes a support plate, which is fixedly connected to the lower surface of the processing table, and a first rotating rod is movably connected to the inner side of the support plate. A turntable is fixedly connected to the top end of the first rotating rod, and a motor is fixedly installed at the bottom end of the support plate. The end of the first rotating rod away from the turntable is fixedly connected to the output end of the motor.

[0007] Preferably, a first fixing rod is fixedly connected to the top of the turntable, a limit rod is fixedly connected to the lower surface of the processing table, and the rack plate moves on the surface of the limit rod. A fixing block is fixedly connected to the surface of the rack plate, and a first movable groove is opened on the inner side of the fixing block.

[0008] Preferably, the first fixed rod is movable inside the first movable groove, and a support rod is fixedly connected to the upper surface of the processing table. A rotating groove is opened on the inner side of the support table, and the support rods are fixed to the processing table in six groups. The rotating groove is opened in a ring shape, and the end of the support rod away from the processing table is movable inside the rotating groove.

[0009] Preferably, the clamping mechanism further includes a movable rod, which is movably connected to the inner side of the support platform. The movable rod is arranged in two sets. A first connecting plate is fixedly connected to the top of the movable rod, and a second connecting plate is fixedly connected to the top of the first connecting plate. A second movable groove is opened on the inner side of the second connecting plate, and the second movable groove is arranged in two sets on the inner side of the second connecting plate.

[0010] Preferably, a connecting rod is movably connected to the inner side of the second movable groove, and the end of the connecting block away from the limiting block is fixedly connected to the connecting rod. The connecting rods are arranged in four groups and correspondingly connected to the second movable groove, and the connecting block and the limiting block are both arranged in four groups.

[0011] Preferably, a third movable groove is provided on the inner side of the connecting block, a limit strip is fixedly connected to the upper surface of the support platform, and the connecting block is movably connected through the third movable groove and the limit strip, with two sets of the connecting blocks and the limit strip being arranged correspondingly.

[0012] Preferably, a second fixing rod is fixedly connected to the upper surface of the support platform, and the second fixing rod is arranged in four groups. The first connecting plate and the second fixing rod are movably connected, and a spring is fixedly connected to the surface of the second fixing rod.

[0013] Preferably, one end of the spring is fixedly connected to the support platform, and the other end of the spring is fixedly connected to the first connecting plate, and a protrusion is fixedly connected to the upper surface of the processing table.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. The first rotating rod drives the turntable to rotate. With the setting of the first fixed rod and the opening of the first movable groove, the fixed block can drive the rack plate to reciprocate, thereby realizing the transmission of the rack plate to the gear. This facilitates the second rotating rod to drive the support table to rotate in both directions, so that the position of the metallurgical shear blade on the support table can be changed. This makes it easy to move the metallurgical shear blade to be repaired to the bottom of the cladding head and to move the repaired metallurgical shear blade away from the bottom of the cladding head. This can reduce downtime and improve the overall repair efficiency.

[0015] 2. By rotating the support platform and using the movable rod and protrusion, the first and second connecting plates can move vertically, and the connecting rod can move inside the second movable groove. This allows the connecting block to move the limiting block, which then clamps the metallurgical shear blade on the support platform. This enables automatic clamping of the metallurgical shear blade when it is moved under the cladding head, preventing displacement and ensuring stability during the repair process. Furthermore, no manual operation is required, ensuring the quality and effectiveness of the repair. The movable rod and protrusion also allow the shear blade to be unlocked when it is moved away from under the cladding head, facilitating removal and replacement and making the repair process more convenient. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of the structure of the present invention; Figure 2 This is a rear-view exploded view of the structure of the present invention; Figure 3 This is an exploded cross-sectional view of the structure of the second rotating rod and support platform of the present invention. Figure 4 This is an exploded side view sectional view of the rack plate and gear structure of the present invention; Figure 5 This is an exploded bottom view of the structure of the second rotating rod and the rotating groove of the present invention; Figure 6 This is an exploded side view of the structure of the second connecting plate and the limiting block of the present invention; Figure 7 This is an exploded side view sectional view of the structure of the second connecting plate and the second fixing rod of the present invention.

[0017] In the diagram: 1. Processing table; 11. Robotic arm; 12. Cladding head; 13. Powder feeding pipe; 14. Support platform; 2. Support plate; 21. First rotating rod; 22. Turntable; 23. Motor; 24. First fixed rod; 25. Limiting rod; 26. Rack plate; 27. Fixed block; 28. First movable groove; 29. ​​Second rotating rod; 210. Gear; 211. Support rod; 212. Rotating groove; 3. Movable rod; 31. First connecting plate; 32. Second connecting plate; 33. Second movable groove; 34. Connecting rod; 35. Connecting block; 36. Limiting block; 37. Third movable groove; 38. Limiting strip; 39. Second fixed rod; 310. Spring; 311. Protrusion. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1-7 One embodiment provided by the present invention: The motor 23 used in this application is a product that can be purchased directly from the market. Its principle and connection method are existing technologies well known to those skilled in the art, so they will not be described in detail here.

[0020] A laser cladding repair device and method for metallurgical shear blades includes a processing table 1. A robotic arm 11 is mounted on the surface of the processing table 1, and a cladding head 12 is mounted on the surface of the robotic arm 11. A powder feeding pipe 13 is fixedly connected to the surface of the cladding head 12. A support platform 14 is mounted on the top of the processing table 1. A switching mechanism is mounted on the surface of the processing table 1, and a clamping mechanism is mounted on the surface of the support platform 14. The switching mechanism includes a rack plate 26, which is movably mounted on the bottom of the processing table 1. A second rotating rod 29 is movably connected to the inner side of the processing table 1, and a gear is fixedly connected to the bottom end of the second rotating rod 29. 210. The support platform 14 is fixedly connected to the top of the second rotating rod 29. The clamping mechanism includes a connecting block 35, which is movably disposed on the top of the support platform 14. A limit block 36 is fixedly connected to the surface of the connecting block 35. By placing the metallurgical shear blade on the support platform 14, the support platform 14 supports the metallurgical shear blade. The robotic arm 11 can drive the cladding head 12 to move. With the powder feeding pipe 13, the cladding material and the surface of the metallurgical shear blade can be melted simultaneously by laser to form a metallurgically bonded coating, thereby restoring the geometric dimensions and performance of the shear blade.

[0021] Furthermore, the switching mechanism also includes a support plate 2, which is fixedly connected to the lower surface of the processing table 1. A first rotating rod 21 is movably connected to the inner side of the support plate 2. A turntable 22 is fixedly connected to the top of the first rotating rod 21. A motor 23 is fixedly installed at the bottom of the support plate 2. The end of the first rotating rod 21 away from the turntable 22 is fixedly connected to the output end of the motor 23. The first rotating rod 21 drives the turntable 22 to rotate. With the setting of the first fixed rod 24 and the opening of the first movable groove 28, the rack plate 26 can move back and forth and the gear 210 can drive the second rotating rod 29 to rotate in both directions. This allows the support table 14 to drive the metallurgical shear blade to rotate, which facilitates the switching of the position of the metallurgical shear blade. Alternating operation can be achieved, which can save the time of disassembling and replacing the metallurgical shear blade, thereby improving the overall repair efficiency.

[0022] Furthermore, a first fixing rod 24 is fixedly connected to the top of the turntable 22, a limit rod 25 is fixedly connected to the lower surface of the processing table 1, and the rack plate 26 moves on the surface of the limit rod 25. A fixing block 27 is fixedly connected to the surface of the rack plate 26, and a first movable groove 28 is opened on the inner side of the fixing block 27. With the setting of the fixing block 27 and the opening of the first movable groove 28, when the turntable 22 rotates, the first fixing rod 24 rotates accordingly and can move inside the first movable groove 28, thereby facilitating the fixing block 27 to drive the rack plate 26 to reciprocate, thereby realizing the transmission of the gear 210.

[0023] Furthermore, the first fixed rod 24 is movable inside the first movable groove 28, and a support rod 211 is fixedly connected to the upper surface of the processing table 1. A rotating groove 212 is opened on the inner side of the support table 14, and the support rods 211 are fixed to the processing table 1 in six groups. The rotating groove 212 is opened in a ring shape, and the end of the support rod 211 away from the processing table 1 is movable inside the rotating groove 212. The support rods 211 can support the support table 14. With the opening of the rotating groove 212, the stability of the metallurgical shear blade rotation driven by the support table 14 can be ensured, thereby realizing the stable switching of the metallurgical shear blade.

[0024] Furthermore, the clamping mechanism also includes a movable rod 3, which is movably connected to the inner side of the support platform 14. The movable rod 3 is arranged in two sets. The top end of the movable rod 3 is fixedly connected to a first connecting plate 31, and the top end of the first connecting plate 31 is fixedly connected to a second connecting plate 32. The inner side of the second connecting plate 32 is provided with a second movable groove 33, and the second movable groove 33 is arranged in two sets on the inner side of the second connecting plate 32. Through the arrangement of the second connecting plate 32 and the opening of the second movable groove 33, it is convenient for the connecting rod 34 to drive the connecting block 35 and the limiting block 36 to move, thereby realizing the automatic clamping of the metallurgical shear blade by the limiting block 36. In the process of clamping the metallurgical shear blade, no manual operation is required, which can ensure the effect of cladding on the metallurgical shear blade.

[0025] Furthermore, a connecting rod 34 is movably connected to the inner side of the second movable groove 33, and the end of the connecting block 35 away from the limiting block 36 is fixedly connected to the connecting rod 34. The connecting rod 34 is arranged in four groups and correspondingly connected to the second movable groove 33. The connecting block 35 and the limiting block 36 are also arranged in four groups. Through the opening of the second movable groove 33, the connecting rod 34 can move under the action of the second movable groove 33 during the vertical movement of the second connecting plate 32, and can drive the connecting block 35 and the limiting block 36 to move accordingly. This facilitates the automatic clamping of the metallurgical shear blade by the limiting block 36, prevents the metallurgical shear blade from shifting, and ensures the stability of the metallurgical shear blade repair process.

[0026] Furthermore, a third movable groove 37 is provided on the inner side of the connecting block 35, and a limiting strip 38 is fixedly connected to the upper surface of the support platform 14. The connecting block 35 is movably connected through the third movable groove 37 and the limiting strip 38. The two sets of connecting blocks 35 are correspondingly set with the limiting strip 38. By opening the third movable groove 37 and setting the limiting strip 38, the connecting block 35 can be limited, which can prevent the connecting block 35 from shifting. This makes it easier for the connecting block 35 to drive the limiting block 36 to move stably, thereby ensuring the stability of the metallurgical shear blade clamping.

[0027] Furthermore, a second fixing rod 39 is fixedly connected to the upper surface of the support platform 14, and the second fixing rod 39 is arranged in four groups. The first connecting plate 31 and the second fixing rod 39 are movably connected, and a spring 310 is fixedly connected to the surface of the second fixing rod 39. The support platform 14 and the first connecting plate 31 are connected by the spring 310, so that when the protrusion 311 releases the pressure on the movable rod 3, the first connecting plate 31 can be reset under the action of the spring 310 and drive the movable rod 3 to reset accordingly. Thus, the limiting block 36 releases the clamping of the metallurgical shear blade, which facilitates the loading and unloading of the metallurgical shear blade.

[0028] Furthermore, one end of the spring 310 is fixedly connected to the support platform 14, and the other end of the spring 310 is fixedly connected to the first connecting plate 31. A protrusion 311 is fixedly connected to the upper surface of the processing table 1. Through the setting of the protrusion 311, the moving rod 3 rotates with the support platform 14 during rotation. The moving rod 3 is squeezed by the protrusion 311, which drives the first connecting plate 31 and the second connecting plate 32 to move vertically. In this way, the connecting block 35 can drive the limiting block 36 to move under the action of the second moving groove 33 and the connecting rod 34, thereby achieving the clamping and fixing of the metallurgical shear blade by the limiting block 36.

[0029] Working principle: During use, the motor 23 is electrically connected to an external power source. The operator starts the motor 23 by pressing the switch. The motor 23 drives the first rotating rod 21 to rotate. The turntable 22 will rotate under the action of the first rotating rod 21, and drive the first fixed rod 24 to rotate as well. The rack plate 26 is limited by the limiting rod 25, which causes the fixed block 27 to move back and forth under the action of the first fixed rod 24. At the same time, the first fixed rod 24 moves inside the first movable groove 28. The rack plate 26 moves back and forth on the surface of the limiting rod 25 under the action of the fixed block 27, realizing the reciprocating motion of the rack plate 26. The movement of the rack plate 26 drives the gear 210 to drive the second rotating rod 29 to rotate in both directions. Thus, the support table 14 drives the metallurgical shear blade to rotate. This can realize the switching of the position of the metallurgical shear blade, so that the metallurgical shear blade to be processed can be rotated to the bottom of the cladding head 12, and the processed metallurgical shear blade can be rotated away from the bottom of the cladding head 12. When the support platform 14 drives the metallurgical shear blade to rotate, the movable rod 3 rotates accordingly under the action of the support platform 14. When a set of movable rods 3 rotates and is squeezed by the protrusion 311, the movable rod 3 moves inside the support platform 14, and the first connecting plate 31 drives the second connecting plate 32 to move vertically upward. At the same time, the first connecting plate 31 moves on the surface of the second fixed rod 39. At this time, the spring 310 is in a stretched state, and then the connecting rod 34 moves inside the second movable groove 33. Since the connecting block 35 is limited by the limiting strip 38, the connecting block 35 drives the limiting block 36 to move accordingly, and the connecting block 35 moves within the limiting strip. The surface of 38 slides, thereby limiting the metallurgical shear blade by the limiting block 36, achieving the effect of automatic clamping of the metallurgical shear blade; while the other set of metallurgical shear blades rotates away from under the cladding head 12, the protrusion 311 cancels the compression of the movable rod 3, and the first connecting plate 31 is reset under the rebound action of the spring 310, and then the second connecting plate 32 is reset accordingly. The connecting rod 34 moves under the action of the second movable groove 33, and the connecting block 35 drives the limiting block 36 to move, so that the limiting blocks 36 move away from each other, thereby releasing the clamping of the metallurgical shear blade, so that the repaired metallurgical shear blade can be removed and replaced during the repair process.

[0030] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Those skilled in the art can readily implement the present invention based on the accompanying drawings and the description above. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the present invention, using the disclosed technical content, are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, or variations made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the present invention.

Claims

1. A metallurgical shear blade laser cladding repair device, comprising a processing table (1), a robotic arm (11) is provided on the surface of the processing table (1), and a cladding head (12) is installed on the surface of the robotic arm (11), a powder feeding pipe (13) is fixedly connected to the surface of the cladding head (12), and a support platform (14) is provided on the top of the processing table (1). Its features are, The surface of the processing table (1) is provided with a switching mechanism, and the surface of the support table (14) is provided with a clamping mechanism; The switching mechanism includes a rack plate (26), which is movably disposed at the bottom of the processing table (1). A second rotating rod (29) is movably connected to the inner side of the processing table (1), and a gear (210) is fixedly connected to the bottom end of the second rotating rod (29). The support platform (14) is fixedly connected to the top end of the second rotating rod (29). The clamping mechanism includes a connecting block (35), which is movably disposed on the top of the support platform (14), and a limiting block (36) is fixedly connected to the surface of the connecting block (35).

2. The metallurgical shear blade laser cladding repair device according to claim 1, characterized in that: The switching mechanism also includes a support plate (2), which is fixedly connected to the lower surface of the processing table (1). A first rotating rod (21) is movably connected to the inner side of the support plate (2). A turntable (22) is fixedly connected to the top of the first rotating rod (21). A motor (23) is fixedly installed at the bottom of the support plate (2). The end of the first rotating rod (21) away from the turntable (22) is fixedly connected to the output end of the motor (23).

3. The metallurgical shear blade laser cladding repair device according to claim 2, characterized in that: The top of the turntable (22) is fixedly connected to a first fixing rod (24), the lower surface of the processing table (1) is fixedly connected to a limiting rod (25), and the rack plate (26) moves on the surface of the limiting rod (25). The surface of the rack plate (26) is fixedly connected to a fixing block (27), and the inner side of the fixing block (27) is provided with a first movable groove (28).

4. The metallurgical shear blade laser cladding repair device according to claim 3, characterized in that: The first fixed rod (24) moves inside the first movable groove (28), and a support rod (211) is fixedly connected to the upper surface of the processing table (1). A rotating groove (212) is opened on the inner side of the support table (14), and the support rod (211) is fixed to the processing table (1) in six groups. The rotating groove (212) is opened in a ring, and the end of the support rod (211) away from the processing table (1) moves inside the rotating groove (212).

5. The laser cladding repair device for metallurgical shear blades according to claim 1, characterized in that: The clamping mechanism also includes a movable rod (3), which is movably connected to the inner side of the support platform (14). The movable rod (3) is arranged in two groups. The top end of the movable rod (3) is fixedly connected to a first connecting plate (31), and the top end of the first connecting plate (31) is fixedly connected to a second connecting plate (32). The inner side of the second connecting plate (32) is provided with a second movable groove (33), and the second movable groove (33) is arranged in two groups on the inner side of the second connecting plate (32).

6. The metallurgical shear blade laser cladding repair device according to claim 5, characterized in that: The inner side of the second movable groove (33) is movably connected to a connecting rod (34), and the end of the connecting block (35) away from the limiting block (36) is fixedly connected to the connecting rod (34). The connecting rod (34) is arranged in four groups and correspondingly connected to the second movable groove (33). The connecting block (35) and the limiting block (36) are both arranged in four groups.

7. The metallurgical shear blade laser cladding repair device according to claim 1, characterized in that: The inner side of the connecting block (35) is provided with a third movable groove (37), and the upper surface of the support platform (14) is fixedly connected with a limiting strip (38). The connecting block (35) is movably connected through the third movable groove (37) and the limiting strip (38). The two sets of connecting blocks (35) and limiting strips (38) are correspondingly set.

8. The laser cladding repair device for metallurgical shear blades according to claim 5, characterized in that: The upper surface of the support platform (14) is fixedly connected with a second fixing rod (39), and the second fixing rod (39) is arranged in four groups. The first connecting plate (31) and the second fixing rod (39) are movably connected, and a spring (310) is fixedly connected to the surface of the second fixing rod (39).

9. The metallurgical shear blade laser cladding repair device according to claim 8, characterized in that: One end of the spring (310) is fixedly connected to the support platform (14), and the other end of the spring (310) is fixedly connected to the first connecting plate (31). A protrusion (311) is fixedly connected to the upper surface of the processing table (1).

10. A method for laser cladding repair of metallurgical shear blades, characterized in that: The first rotating rod (21) drives the turntable (22) to rotate, thereby enabling the first fixed rod (24) to drive the first movable groove (28) to move. Then, the rack plate (26) moves back and forth, causing the gear (210) to drive the second rotating rod (29) to rotate automatically in both directions. This facilitates the rotation of the support platform (14) to switch the metallurgical shear blade below the cladding head (12). The movable rod (3) is squeezed by the protrusion (311) during the rotation of the support platform (14), thereby enabling the first connecting plate (31) to drive the second connecting plate (32) to move vertically. The connecting block (35) is driven by the second movable groove (33) and the connecting rod (34) to move the limiting block (36), which facilitates the limiting block (36) to limit the metallurgical shear blade and clamp it.

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