Casting defect three-dimensional scanning and laser in-situ repairing device and method

Abstract

The invention relates to the technical field of casting defect scanning and repairing, and discloses a casting defect three-dimensional scanning and laser in-situ repairing device and method.The casting defect three-dimensional scanning and laser in-situ repairing device comprises a base, the top of the base is rotationally connected with a rotating disc used for placing a casting part, and a central processing unit used for control is installed in the base; a three-dimensional scanning mechanism; a repairing mechanism; a feeding assembly; by arranging the repairing mechanism, a second servo motor can be used for controlling rotation of a conveying roller, consumables can be conveyed through rotation of the conveying roller, a material guiding piece can be used for guiding the conveying position of the consumables, and a second spring can be used for supporting a pressing piece; the consumable can be pressed on the surface of the conveying roller through the pressing piece, the conveying roller can convey the consumable more easily, the conveying amount of the consumable can be accurately adjusted by controlling the second servo motor, the situation of excessive repairing or insufficient repairing is avoided, and the repairing effect is better.

Description

Technical Field

[0001] This invention relates to the field of casting defect scanning and repair technology, specifically to a device and method for three-dimensional scanning and laser in-situ repair of casting defects. Background Technology

[0002] Castings are metal shaped objects obtained by various casting methods. That is, smelted liquid metal is poured into a pre-prepared mold by pouring, injection, suction or other casting methods. After cooling, it is processed by subsequent means such as grinding to obtain an object with a certain shape, size and performance. After the casting is manufactured, it needs to be inspected and repaired. Three-dimensional defect scanning is a method of detecting surface or internal defects of an object using three-dimensional imaging technology. Casting defect laser in-situ repair device is an advanced device used to repair surface or internal defects of castings. It uses laser technology to perform local repair without disassembling or destroying the overall structure of the casting.

[0003] However, current laser in-situ repair devices cannot accurately deliver consumables based on the scanning situation, which can easily lead to over-repair or under-repair at the defects in the repaired castings, affecting the repair effect. Summary of the Invention

[0004] The purpose of this invention is to provide a device and method for three-dimensional scanning and laser in-situ repair of casting defects, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A device and method for three-dimensional scanning and laser in-situ repair of casting defects, comprising:

[0007] A base, the top of which is rotatably connected to a rotating disk for placing castings, and a central processing unit for control is installed inside the base;

[0008] A three-dimensional scanning mechanism is installed on one side of the base. The three-dimensional scanning mechanism uses a three-dimensional scanner to perform three-dimensional scanning detection of defects in the castings on the rotating disk.

[0009] A repair mechanism is installed on one side of the base, and the repair mechanism repairs the defect using a semiconductor laser;

[0010] A feeding assembly is installed in the repair mechanism, and the feeding assembly intelligently feeds materials based on the defect conditions scanned by the three-dimensional scanning mechanism.

[0011] Optionally, the feeding assembly includes a fixed plate, consumables, a conveying roller, and a holding member. The conveying roller is rotatably connected inside the fixed plate. A second spring is fixedly installed inside the fixed plate. The holding member is fixedly installed at one end of the second spring and is located on one side of the consumables. A guide member is fixedly installed at the bottom of the fixed plate, and the consumables are located inside the guide member. The semiconductor laser is fixedly installed at the bottom of the fixed plate, and one end of the guide member is located on one side of the semiconductor laser.

[0012] Optionally, a take-up drum is fixedly installed on one side of the fixing plate, and the consumables are wound inside the take-up drum.

[0013] Optionally, a second servo motor is fixedly installed on one side of the fixed plate, and the conveying roller is fixedly installed at the output end of the second servo motor.

[0014] Optionally, the repair mechanism includes a movable frame, a mounting plate, a guide rail, a first servo motor, and a threaded rod. The guide rail is fixedly installed inside the mounting plate, the movable frame is slidably connected to the side wall of the guide rail, the first servo motor is fixedly installed on one side of the mounting plate, the threaded rod is fixedly installed at the output end of the first servo motor, the threaded rod is rotatably connected to the inside of the mounting plate, the threaded rod is movably connected to the movable frame, an electric push rod is fixedly installed at the bottom of the movable frame, and a fixed plate is fixedly installed at the output end of the electric push rod.

[0015] Optionally, a mounting bracket is fixedly installed on one side of the base, a rotating shaft is rotatably connected inside the mounting bracket, the mounting plate is fixedly installed on the side wall of the rotating shaft, and a support frame is fixedly installed on one side wall of the mounting plate.

[0016] Optionally, an extension frame is fixedly installed on one side of the top of the mounting frame, and a first spring is fixedly installed inside the extension frame. A limiting member is fixedly installed at one end of the first spring, and the end face of the limiting member is trapezoidal.

[0017] Optionally, the 3D scanning mechanism includes a fixed frame, a movable plate, an adjusting shaft, and a plate body. The fixed frame is fixedly installed inside the base, the movable plate is installed inside the fixed frame, the adjusting shaft is rotatably connected to one end of the movable plate, the plate body is fixedly installed on the side wall of the adjusting shaft, the plate body is located on the top of the rotating disk, and the 3D scanner is fixedly installed at the bottom of the plate body.

[0018] Optionally, a second damping pad is fixedly installed on the inner wall of the fixed frame, a first damping pad is fixedly installed on one side wall of the movable plate, one end of the movable plate is slidably connected inside the fixed frame, a third spring is fixedly installed inside the movable plate, a locking block is fixedly installed on one end of the third spring, and two locking grooves are opened on the side wall of the adjusting shaft, with the locking block engaging with the two locking grooves.

[0019] A method for three-dimensional scanning and in-situ laser repair of casting defects includes the following steps:

[0020] S1: When using, place the casting to be inspected on the rotating disk. If the casting is large, the mounting plate is raised by moving the mounting plate, and then the adjusting shaft is rotated to raise the plate, which is convenient for inspecting and repairing larger castings. During the inspection process, the surface of the casting is gradually passed by the 3D scanner on one side of the plate by rotating the rotating disk. The 3D scanner detects the surface defects of the casting and sends the defect detection results to the central processing unit.

[0021] S2: The central processing unit analyzes the size of the defect, then controls the first servo motor to drive the threaded rod to rotate. The rotation of the threaded rod drives the moving frame to move inside the mounting plate, thereby adjusting the position of the bottom fixed plate of the moving frame. This adjusts the semiconductor laser to the position where the defect needs to be repaired. The semiconductor laser is then delivered to the defect location by extending the electric push rod.

[0022] S3: The laser beam from the semiconductor laser is focused on the defect area to form a molten pool. Then, the second servo motor drives the conveyor roller to rotate, which conveys the consumable material. The central processing unit controls the rotation of the conveyor roller to accurately convey the amount of consumable material, and the defect is repaired by stacking it layer by layer.

[0023] This invention has at least the following beneficial effects:

[0024] (1) This solution sets up a repair mechanism, and sets up a second servo motor to control the rotation of the conveyor roller. The rotation of the conveyor roller can be used to convey consumables. A guide component can be set up to guide the conveying position of consumables. A second spring can be set up to support the holding component. The holding component can press the consumables onto the surface of the conveyor roller, making it easier for the conveyor roller to convey consumables. By controlling the second servo motor, the amount of consumables conveyed can be precisely adjusted to avoid over-repair or under-repair, thus improving the repair effect.

[0025] (2) This solution can be used to adjust the rotation of the mounting plate by setting a rotating shaft. By erecting the mounting plate, it can be used to repair larger castings. The plate body of the adjusting shaft side wall can be parallel or perpendicular to the top surface of the rotating disk, so that the scanning range of the 3D scanner can be easily adjusted. The plate body can be used to scan larger castings by erecting the plate body.

[0026] (3) This solution sets a first spring to support the limiting component. The limiting component can limit the mounting plate after it is erected, thus preventing the mounting plate from tipping over.

[0027] (4) This solution can support the card block by setting a third spring so that the card block can be inserted into the card slot. By setting two card slots, the adjusting shaft can be fixed when the adjusting shaft is rotated to two specified angles. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying 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.

[0029] Figure 1 This is a schematic diagram of the structure of the present invention;

[0030] Figure 2 This is a schematic diagram of one side of the structure of the present invention;

[0031] Figure 3 This is a schematic cross-sectional view of the extension frame of the present invention;

[0032] Figure 4 This is a schematic diagram of the fixing frame structure of the present invention;

[0033] Figure 5 This is a cross-sectional view of the fixing frame and movable plate of the present invention;

[0034] Figure 6 This is a schematic cross-sectional view of the fixing plate of the present invention;

[0035] Figure 7 This is a system diagram of the present invention.

[0036] The attached diagram lists the components represented by each number as follows:

[0037] 1. Base; 11. Rotary disk; 12. Central processing unit; 2. Mounting bracket; 21. Rotating shaft; 22. Extension bracket; 23. Limiting component; 231. First spring; 24. Mounting plate; 25. Guide rail; 26. First servo motor; 27. Threaded rod; 28. Support frame; 3. Moving frame; 31. Electric push rod; 32. Fixed plate; 33. Rewind drum; 34. Consumables; 35. Conveyor roller; 36. Second servo motor; 37. Holding component; 371. Second spring; 38. Guide component; 39. Semiconductor laser; 4. Fixed bracket; 41. Movable plate; 42. Adjusting shaft; 43. Plate body; 44. 3D scanner; 45. Slot; 46. Third spring; 47. Locking block; 48. First damping pad; 49. Second damping pad. Detailed Implementation

[0038] 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.

[0039] Please see Figures 1-7 This invention provides a device and method for three-dimensional scanning and laser in-situ repair of casting defects, comprising:

[0040] The base 1 has a rotating disk 11 for placing castings rotatably connected to its top, and a central processing unit 12 for control is installed inside the base 1.

[0041] A three-dimensional scanning mechanism is installed on one side of the base 1. The three-dimensional scanning mechanism uses a three-dimensional scanner 44 to perform three-dimensional scanning detection of defects in the castings on the rotating disk 11.

[0042] The repair mechanism is installed on one side of the base 1, and the repair mechanism repairs the defect through the semiconductor laser 39;

[0043] The feeding assembly is installed in the repair mechanism. The feeding assembly intelligently feeds materials based on the defects scanned by the 3D scanning mechanism.

[0044] In some embodiments, see Figure 1 , Figure 6The feeding assembly includes a fixed plate 32, consumables 34, a conveying roller 35, and a holding member 37. The conveying roller 35 is rotatably connected inside the fixed plate 32. A second spring 371 is fixedly installed inside the fixed plate 32. The holding member 37 is fixedly installed at one end of the second spring 371 and is located on one side of the consumables 34. A guide member 38 is fixedly installed at the bottom of the fixed plate 32, and the consumables 34 is located inside the guide member 38. A semiconductor laser 39 is fixedly installed at the bottom of the fixed plate 32, and one end of the guide member 38 is located on one side of the semiconductor laser 39. A second servo motor 36 is fixedly installed on one side of the fixed plate 32. The conveying roller 35 is fixedly installed at the output end of the second servo motor 36. The second servo motor 36 can be used to control the rotation of the conveying roller 35. The rotation of the conveying roller 35 can be used to convey the consumable 34. The guide component 38 can be used to guide the conveying position of the consumable 34. The second spring 371 can be used to support the holding component 37. The holding component 37 can press the consumable 34 onto the surface of the conveying roller 35, making it easier for the conveying roller 35 to convey the consumable 34. By controlling the second servo motor 36, the conveying amount of the consumable 34 can be precisely adjusted.

[0045] In some embodiments, see Figure 1 , Figure 2 A take-up drum 33 is fixedly installed on one side of the fixed plate 32. The consumable 34 is wound up inside the take-up drum 33. The take-up drum 33 can be used to store the consumable 34.

[0046] In some embodiments, see Figure 1 , Figure 2 The repair mechanism includes a movable frame 3, a mounting plate 24, a guide rail 25, a first servo motor 26, and a threaded rod 27. The guide rail 25 is fixedly installed inside the mounting plate 24. The movable frame 3 is slidably connected to the side wall of the guide rail 25. The first servo motor 26 is fixedly installed on one side of the mounting plate 24. The threaded rod 27 is fixedly installed at the output end of the first servo motor 26. The threaded rod 27 is rotatably connected to the inside of the mounting plate 24 and is movably connected to the movable frame 3. An electric push rod 31 is fixedly installed at the bottom of the movable frame 3. A fixed plate 32 is fixedly installed at the output end of the electric push rod 31. The guide rail 25 can be used to limit the movement of the movable frame 3. The first servo motor 26 can be used to control the rotation of the threaded rod 27. The rotation of the threaded rod 27 can drive the movable frame 3 to move inside the mounting plate 24, thereby adjusting the position of the fixed plate 32 at the bottom of the movable frame 3, and thus adjusting the semiconductor laser 39 to the position where defect repair is required.

[0047] In some embodiments, see Figure 2 , Figure 3A mounting bracket 2 is fixedly installed on one side of the base 1. A rotating shaft 21 is rotatably connected inside the mounting bracket 2. A mounting plate 24 is fixedly installed on the side wall of the rotating shaft 21. A support frame 28 is fixedly installed on one side wall of the mounting plate 24. An extension frame 22 is fixedly installed on one side of the top of the mounting bracket 2. A first spring 231 is fixedly installed inside the extension frame 22. A limit member 23 is fixedly installed on one end of the first spring 231. The end face of the limit member 23 is trapezoidal. The rotating shaft 21 can be used to adjust the rotation of the mounting plate 24. The mounting plate 24 can be used to repair larger castings by standing it up. The first spring 231 can be used to support the limit member 23. The limit member 23 can limit the mounting plate 24 after it is stood up to prevent the mounting plate 24 from tipping over.

[0048] In some embodiments, see Figure 1 , Figure 4 The three-dimensional scanning mechanism includes a fixed frame 4, a movable plate 41, an adjusting shaft 42, and a plate body 43. The fixed frame 4 is fixedly installed inside the base 1. The movable plate 41 is installed inside the fixed frame 4. The adjusting shaft 42 is rotatably connected to one end of the movable plate 41. The plate body 43 is fixedly installed on the side wall of the adjusting shaft 42. The plate body 43 is located on the top of the rotating disk 11. The three-dimensional scanner 44 is fixedly installed at the bottom of the plate body 43. By installing the three-dimensional scanner 44 at the bottom of the plate body 43, the three-dimensional scanner 44 can scan the defects of the casting on the top of the plate body 43.

[0049] In some embodiments, see Figure 4 , Figure 5 A second damping pad 49 is fixedly installed on the inner wall of the fixed frame 4, and a first damping pad 48 is fixedly installed on one side wall of the movable plate 41. One end of the movable plate 41 is slidably connected to the inside of the fixed frame 4. A third spring 46 is fixedly installed inside the movable plate 41, and a locking block 47 is fixedly installed on one end of the third spring 46. Two locking slots 45 are opened on the side wall of the adjusting shaft 42. The locking block 47 fits into the two locking slots 45. The third spring 46 can be used to support the locking block 47 so that the locking block 47 can be locked into the locking slots 45. The two locking slots 45 can fix the adjusting shaft 42 when it is rotated to two specified angles, so that the plate 43 on the side wall of the adjusting shaft 42 can be parallel or perpendicular to the top surface of the rotating disk 11, thereby facilitating the adjustment of the scanning range of the 3D scanner 44. The plate 43 can be used to scan larger castings when it is erected.

[0050] The workflow and principle of this invention are as follows: During use, the casting to be inspected is placed on the rotating disk 11. If the casting is large, the mounting plate 24 is raised by moving it, and then the adjusting shaft 42 is rotated to raise the plate 43, facilitating the inspection and repair of larger castings. During the inspection process, the rotating disk 11 is rotated, causing the surface of the casting to gradually pass over the 3D scanner 44 on one side of the plate 43. The 3D scanner 44 detects surface defects in the casting and transmits the defect detection results to the central processing unit 12. The central processing unit 12 analyzes the size of the defects and then controls the first servo motor 26 to drive the screw... The threaded rod 27 rotates, which drives the movable frame 3 to move inside the mounting plate 24, thereby adjusting the position of the bottom fixed plate 32 of the movable frame 3. This adjusts the semiconductor laser 39 to the position where defect repair is needed. The electric push rod 31 extends to transport the semiconductor laser 39 to the defect. The laser beam of the semiconductor laser 39 is focused on the defect area to form a molten pool. Then, the second servo motor 36 drives the conveyor roller 35 to rotate, which transports the consumable 34. The central processing unit 12 controls the rotation of the conveyor roller 35 to accurately transport the amount of consumable 34, and the defect repair is completed by stacking it layer by layer.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for three-dimensional scanning and laser in-situ repair of casting defects, characterized in that, include: A base (1) is rotatably connected to the top of the base (1) for placing castings, and a central processing unit (12) for control is installed inside the base (1). A three-dimensional scanning mechanism is installed on one side of the base (1). The three-dimensional scanning mechanism performs three-dimensional scanning detection of defects on the castings on the rotating disk (11) using a three-dimensional scanner (44). A repair mechanism is installed on one side of the base (1), and the repair mechanism repairs the defect by means of a semiconductor laser (39); A feeding assembly is installed in the repair mechanism, and the feeding assembly intelligently feeds materials based on the defect conditions scanned by the three-dimensional scanning mechanism.

2. The three-dimensional scanning and laser in-situ repair device for casting defects according to claim 1, characterized in that: The feeding assembly includes a fixed plate (32), consumables (34), a conveying roller (35), and a holding member (37). The conveying roller (35) is rotatably connected inside the fixed plate (32). A second spring (371) is fixedly installed inside the fixed plate (32). The holding member (37) is fixedly installed at one end of the second spring (371) and is located on one side of the consumables (34). A guide member (38) is fixedly installed at the bottom of the fixed plate (32). The consumables (34) are located inside the guide member (38). The semiconductor laser (39) is fixedly installed at the bottom of the fixed plate (32), and one end of the guide member (38) is located on one side of the semiconductor laser (39).

3. The three-dimensional scanning and laser in-situ repair device for casting defects according to claim 2, characterized in that: A take-up drum (33) is fixedly installed on one side of the fixed plate (32), and the consumable (34) is wound inside the take-up drum (33).

4. The three-dimensional scanning and laser in-situ repair device for casting defects according to claim 2, characterized in that: A second servo motor (36) is fixedly installed on one side of the fixed plate (32), and the conveying roller (35) is fixedly installed at the output end of the second servo motor (36).

5. The three-dimensional scanning and laser in-situ repair device for casting defects according to claim 4, characterized in that: The repair mechanism includes a movable frame (3), a mounting plate (24), a guide rail (25), a first servo motor (26), and a threaded rod (27). The guide rail (25) is fixedly installed inside the mounting plate (24). The movable frame (3) is slidably connected to the side wall of the guide rail (25). The first servo motor (26) is fixedly installed on one side of the mounting plate (24). The threaded rod (27) is fixedly installed at the output end of the first servo motor (26). The threaded rod (27) is rotatably connected inside the mounting plate (24) through the threaded rod (27). The threaded rod (27) is movably connected to the movable frame (3). An electric push rod (31) is fixedly installed at the bottom of the movable frame (3). The fixed plate (32) is fixedly installed at the output end of the electric push rod (31).

6. The three-dimensional scanning and laser in-situ repair device for casting defects according to claim 5, characterized in that: A mounting bracket (2) is fixedly installed on one side of the base (1). A rotating shaft (21) is rotatably connected inside the mounting bracket (2). The mounting plate (24) is fixedly installed on the side wall of the rotating shaft (21). A support frame (28) is fixedly installed on one side wall of the mounting plate (24).

7. The three-dimensional scanning and laser in-situ repair device for casting defects according to claim 6, characterized in that: An extension frame (22) is fixedly installed on one side of the top of the mounting bracket (2). A first spring (231) is fixedly installed inside the extension frame (22). A limiting member (23) is fixedly installed at one end of the first spring (231). The end face of the limiting member (23) is trapezoidal.

8. The three-dimensional scanning and laser in-situ repair device for casting defects according to claim 1, characterized in that: The three-dimensional scanning mechanism includes a fixed frame (4), a movable plate (41), an adjusting shaft (42), and a plate body (43). The fixed frame (4) is fixedly installed inside the base (1). The movable plate (41) is installed inside the fixed frame (4). The adjusting shaft (42) is rotatably connected to one end of the movable plate (41). The plate body (43) is fixedly installed on the side wall of the adjusting shaft (42). The plate body (43) is located on the top of the rotating disk (11). The three-dimensional scanner (44) is fixedly installed at the bottom of the plate body (43).

9. The three-dimensional scanning and laser in-situ repair device for casting defects according to claim 8, characterized in that: A second damping pad (49) is fixedly installed on the inner wall of the fixed frame (4), a first damping pad (48) is fixedly installed on one side wall of the movable plate (41), one end of the movable plate (41) is slidably connected inside the fixed frame (4), a third spring (46) is fixedly installed inside the movable plate (41), a locking block (47) is fixedly installed on one end of the third spring (46), and two slots (45) are opened on the side wall of the adjusting shaft (42), and the locking block (47) fits into the two slots (45).

10. A method for three-dimensional scanning and in-situ laser repair of casting defects according to any one of claims 1-9, characterized in that: Specifically, the following steps are included: S1: When using, place the casting to be inspected on the rotating disk (11). If the casting is large, the mounting plate (24) is raised by moving the mounting plate (24), and then the adjusting shaft (42) is rotated to raise the plate (43), which is convenient for inspecting and repairing larger castings. During the inspection process, the surface of the casting is gradually passed by the three-dimensional scanner (44) on one side of the plate (43) by rotating the rotating disk (11). The three-dimensional scanner (44) is used to inspect the surface defects of the casting. The three-dimensional scanner (44) sends the defect inspection results to the central processing unit (12). S2: The size of the defect is analyzed by the central processing unit (12), and then the first servo motor (26) is controlled to drive the threaded rod (27) to rotate. The rotation of the threaded rod (27) drives the moving frame (3) to move inside the mounting plate (24), thereby adjusting the position of the bottom fixing plate (32) of the moving frame (3) to adjust the semiconductor laser (39) to the position where the defect needs to be repaired. The semiconductor laser (39) is delivered to the defect by extending the electric push rod (31). S3: The laser beam of the semiconductor laser (39) is focused on the defect area to form a molten pool. Then, the second servo motor (36) drives the conveyor roller (35) to rotate. The consumable (34) is conveyed by the rotation of the conveyor roller (35). The central processing unit (12) controls the rotation of the conveyor roller (35) to accurately convey the amount of consumable (34) and stacks it layer by layer to complete the defect repair.

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