A device for rapid repair of surface damage of a workpiece and a repair method thereof

Abstract

This invention discloses a rapid repair device and method for workpiece surface damage, relating to the technical field of workpiece surface damage repair devices. It includes a repair base plate, a process switching mechanism, and a damage repair mechanism. A longitudinal repair mechanism is installed on the upper side of the repair base plate, a transverse repair mechanism is installed at the top of the longitudinal repair mechanism, and a repair height adjustment mechanism is installed at the bottom of the transverse repair mechanism. The process switching mechanism includes a switching power component and a switching position locking component. A rotating seat is fixedly connected to the bottom end of the lifting plate in the repair height adjustment mechanism. This rapid repair device and method for workpiece surface damage can preheat the cladding wire, facilitating rapid melting of the cladding wire by the laser cladding device body, thereby improving repair efficiency. It can also grind sharp edges at the damaged area of ​​the workpiece surface, allowing the melted cladding wire to fill the damaged area, preventing pores from appearing at the damaged area after repair and affecting workpiece quality, resulting in high repair quality.

Description

Technical Field

[0001] This invention relates to the field of workpiece surface damage repair devices, specifically a rapid repair device and method for workpiece surface damage. Background Technology

[0002] Currently, laser cladding is a laser surface modification technology that involves adding cladding material (powder, wire, pre-placed, etc.) to the surface of a workpiece (or substrate material). Through high-energy-density laser heating, the cladding material and the thin metal layer on the substrate surface rapidly reach a molten state. At this time, the workpiece itself conducts heat and quickly solidifies and crystallizes into a cladding layer.

[0003] Chinese Patent CN106583920B discloses a laser cladding device for converting an incident beam to clad a material onto a substrate. The device includes a support frame, a conical reflective diffuser, and a reflective focusing assembly mounted on the support frame. The conical reflective diffuser expands the incident beam and reflects it along its circumference to form a reflected beam. The reflective focusing assembly includes a reflective focusing surface and a reflective surface. The reflective focusing surface receives a portion of the reflected beam and reflects it again to form a focused beam, which forms a focused spot on the substrate to melt the material within the focused spot, thereby forming a molten pool on the substrate.

[0004] Although this patent solves the problem of rapid cladding of cladding materials, the following defects still exist: when using cladding wire as cladding material, the cladding wire cannot melt quickly after being processed by the laser cladding device, which affects the repair efficiency. The damaged area on the workpiece surface has sharp edges and corners, and the cladding material is not easy to fill the damaged area. After repair, the damaged area is prone to pores, resulting in low repair quality. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the existing defects and provide a rapid repair device and method for workpiece surface damage. It can preheat the cladding wire, which facilitates the rapid melting of the cladding wire by the main body of the laser cladding device, thereby improving the repair efficiency. It can also grind the sharp edges of the damaged area on the workpiece surface, so that the molten cladding wire can fill the damaged area, avoiding the appearance of pores in the damaged area after repair that affect the quality of the workpiece. The repair quality is high and it can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rapid repair device for workpiece surface damage, comprising:

[0007] The repair base plate has a repair longitudinal movement mechanism installed on its upper side, a repair transverse movement mechanism installed on the top of the repair longitudinal movement mechanism, and a repair height adjustment mechanism installed on the moving part of the repair transverse movement mechanism.

[0008] The process switching mechanism includes a rotating base, a switching shaft, a switching turntable, a switching power component, and a switching position locking component. In the repair height adjustment mechanism, the bottom end of the lifting plate is fixedly connected to the rotating base, and a transverse switching shaft is rotatably connected to the rotating base via a bearing. The right end of the switching shaft is fixedly connected to the switching turntable, the left end of the switching shaft is equipped with the switching power component, and the middle part of the switching shaft is connected to the switching position locking component.

[0009] The damage repair mechanism includes a repair mounting base, a wire feeding limiting tube, a wire feeding assembly, a cladding wire preheating assembly, a cladding angle adjustment assembly, and a laser cladding device body. The repair mounting base is fixedly connected to the bottom right side of the switching turntable. The repair mounting base is fixedly connected to the top of the wire feeding limiting tube. The wire feeding assembly is installed on the top of the repair mounting base. The cladding wire preheating assembly is installed on the bottom outer periphery of the wire feeding limiting tube. The front and rear sides of the repair mounting base are respectively connected to two laser cladding device bodies through two cladding angle adjustment assemblies. The bottom ends of the two laser cladding device bodies face the bottom of the wire feeding limiting tube.

[0010] The longitudinal movement mechanism can drive the process switching mechanism and the damage repair mechanism to move back and forth. The transverse movement mechanism can drive the process switching mechanism and the damage repair mechanism to move left and right, allowing the damage repair mechanism to move along the path of the workpiece wound. The repair height adjustment mechanism can drive the process switching mechanism and the damage repair mechanism to move up and down, allowing the damage repair mechanism to move lower and closer to the damaged area of ​​the workpiece during repair. The switching power component can drive the switching shaft to rotate relative to the rotary table, thereby driving the repair mounting base to rotate via the switching turntable. When the repair mounting base is set with the right side of the switching turntable facing downwards, it allows the wire feeding assembly, the cladding wire preheating assembly, and the laser cladding to move. When the main body of the device is working, the switching position locking component can be used to lock the switching shaft to prevent the uncontrolled rotation of the switching shaft from changing the position of the damage repair mechanism. The wire feeding component can feed the cladding wire downward along the wire feeding limit tube to the damaged area of ​​the workpiece. The cladding wire preheating component preheats the cladding wire that has passed through the wire feeding limit tube, and then it is heated and melted by the laser emitted by the main body of the laser cladding device. The molten cladding material enters the wound on the surface of the workpiece and cools and solidifies, quickly completing the initial repair operation. The cladding angle adjustment component can adjust the tilt angle of the main body of the laser cladding device, so that the melting laser emitted by the main body of the laser cladding device can be aligned with the cladding wire.

[0011] Furthermore, the switching power assembly includes a fixed bracket, a motor sleeve, and a switching motor. The left end of the switching shaft is fixedly connected to the output shaft of the switching motor. The motor sleeve is fitted onto the outside of the switching motor, and the motor sleeve is fixedly installed on the left side of the lifting plate by the fixed bracket. The fixed bracket is used to fix the motor sleeve, and the motor sleeve is used to install the switching motor. When the switching motor operates, it drives the switching shaft to rotate, thereby causing the switching turntable to rotate.

[0012] Furthermore, the switching position locking assembly includes a sliding rod, a locking gear, a locking tooth, a control top plate, a locking stud, and a locking motor. The locking gear is fixedly sleeved in the middle of the switching shaft. The sliding rod is vertically slidably connected in the sliding hole on the fixed bracket. The bottom of the sliding rod is fixedly connected to the locking tooth corresponding to the upper and lower locking gear. The top of the sliding rod is fixedly connected to the control top plate. The vertical locking stud is rotatably connected to the fixed bracket through a mounting bearing. The locking stud is threadedly connected to the screw hole on the control top plate. The bottom of the locking stud is fixedly connected to the output shaft of the locking motor. The locking motor is fixed to the bottom of the fixed bracket. Once the switching shaft and switching turntable have rotated to the desired position, the locking motor operates, causing the locking stud to rotate clockwise. The threaded action between the locking stud and the control top plate causes the control top plate and sliding rod to move downwards along the sliding hole on the fixed bracket, thereby causing the locking protrusion to move downwards and engage with the top of the locking gear, thus locking the switching shaft. The locking motor then operates, causing the locking stud to rotate counterclockwise, which can cause the locking protrusion to move upwards and disengage from the top of the locking gear. At this point, the switching shaft and switching turntable can be allowed to rotate again.

[0013] Furthermore, the wire feeding assembly includes a wire feeding shaft, a winding roller, a wire feeding motor, a bobbin, rollers, and a wire feeding roller. The wire feeding shaft is fixedly connected to the top right side of the switching turntable, and a winding roller is rotatably connected to the wire feeding shaft. The winding roller is wound with cladding wire, and one end of the cladding wire passes through the wire feeding limiting tube. A bobbin is fixedly connected to the repair mounting base at the front and rear sides of the wire feeding limiting tube, respectively. Two longitudinal rollers are rotatably connected inside the two bobbins, and two wire feeding rollers are fixedly sleeved on the two rollers. The middle part of the two wire feeding rollers is provided with annular grooves, and the front and rear sides of the cladding wire respectively cooperate with the two annular grooves. The output shaft of the wire feeding motor is fixedly connected to the end of the roller, and the wire feeding motor is fixed to the end of the bobbin. The unwinding shaft allows the winding roller to rotate freely, thereby releasing the cladding wire on the winding roller. The rotating feeding roller on the bobbin rotates in the opposite direction, driving the cladding wire to be conveyed downward along the feeding limit tube. The feeding motor serves as the power source, driving the roller shaft and the feeding roller to rotate. The annular groove limits the cladding wire, allowing the winding roller to smoothly and stably convey the cladding wire downward.

[0014] Furthermore, the cladding angle adjustment assembly includes a movable seat, an arc-shaped limiting rod, a limiting pin, and a movable mounting rod. Two movable seats are fixedly connected to the bottom of the front and rear sides of the repair mounting seat, respectively. One end of two movable mounting rods is movably connected to each of the two movable seats via movable columns. The other ends of the two movable mounting rods are fixedly connected to the top of the two laser cladding device bodies, respectively. Two arc-shaped limiting rods are fixedly connected to the front and rear sides of the repair mounting seat, respectively. Multiple insertion holes are opened at equal angles on the arc-shaped limiting rods. Limiting pins are inserted into the circular holes on the movable mounting rods, and the limiting pins are inserted into the corresponding insertion holes on the arc-shaped limiting rods. To prevent the limit pin from detaching from the movable mounting rod and the arc-shaped limit rod, limit nuts are threaded onto both ends of the limit pin. When it is necessary to adjust the tilt angle of the laser cladding device body, the limit nuts are unscrewed, the limit pin is pulled out, and the movable mounting rod moves relative to the movable seat through the movable column. After changing the tilt angle of the laser cladding device body, the limit pin is reinserted, allowing it to re-engage with the corresponding insertion hole on the arc-shaped limit rod. The limit nuts at both ends of the limit pin are then tightened to complete the adjustment of the angle of the laser cladding device body, aligning the laser cladding device body with the bottom end of the cladding wire.

[0015] Furthermore, the cladding wire preheating assembly includes a heat-conducting sleeve, a temperature control switch, a preheating heating wire, a protective sleeve, and a heat-insulating sleeve. A heat-conducting sleeve is fixedly fitted onto the outer periphery of the bottom of the wire feeding limiting tube. A temperature control switch is installed on the heat-conducting sleeve. A spiral preheating heating wire is wound around the outside of the heat-conducting sleeve. A protective sleeve is fitted around the outside of the heat-conducting sleeve, enclosing the preheating heating wire. A heat-insulating sleeve is fitted around the outside of the protective sleeve. The temperature control switch controls the operation of the preheating heating wire, which heats the heat-conducting sleeve. The heat conduction of the heat-conducting sleeve preheats the cladding wire inside the wire feeding limiting tube, facilitating rapid heating and melting of the bottom of the cladding wire by the main body of the laser cladding device. The protective sleeve protects the preheating heating wire, and the heat-insulating sleeve insulates the protective sleeve, reducing heat loss.

[0016] Furthermore, it also includes a wound pretreatment mechanism and a smoothing and repair mechanism. The wound pretreatment mechanism is installed at the front right side of the switching turntable, and the smoothing and repair mechanism is installed at the rear right side of the switching turntable. When the switching turntable rotates so that the wound pretreatment mechanism faces downward, the wound pretreatment mechanism can grind and pretreat the wound edges on the workpiece surface, which facilitates the filling of the wound by the molten cladding material. When the switching turntable rotates so that the smoothing and repair mechanism faces downward, the smoothing and repair mechanism can smooth out the solidified cladding material protruding at the wound, maintaining the smooth and aesthetically pleasing surface of the workpiece.

[0017] Furthermore, it also includes a workpiece clamping mechanism. The workpiece clamping mechanism is installed on the upper middle part of the repair base plate. The workpiece clamping mechanism is located below the middle part of the repair transverse movement mechanism. The workpiece clamping mechanism is used to clamp and fix the workpiece to be repaired, preventing the workpiece from moving when processing or repairing the workpiece.

[0018] Furthermore, it also includes a debris removal mechanism, which comprises a rectangular cleaning blower hood and an air blowing assembly. A rectangular through slot is formed on the front side of the upper surface of the repair base plate, and the rectangular cleaning blower hood is vertically slidably connected within the rectangular through slot. A rearward air blowing port is formed on the top rear side of the rectangular cleaning blower hood, and the air blowing assembly is connected to the bottom of the rectangular cleaning blower hood. During grinding or smoothing, excessive debris is generated, affecting the observation of the damaged area of ​​the workpiece. The air blowing assembly delivers air into the rectangular cleaning blower hood, which then blows it onto the workpiece surface through the air blowing port, removing the debris that has fallen off during grinding and preventing it from affecting the observation of the damaged area. Simultaneously, it cools the molten cladding material, promoting rapid cooling and solidification of the cladding material.

[0019] A method for repairing surface damage of a workpiece using a rapid repair device includes the following steps:

[0020] Step 1: Place the damaged surface of the workpiece to be repaired face up on the upper center of the repair base plate. The clamping motor in the workpiece clamping mechanism drives the bidirectional screw to rotate clockwise. The threads of the bidirectional screw and the two nuts cause the two nuts and the two horizontal slide bars to move closer to each other along the horizontal through groove, thereby causing the two clamping plates to move closer to each other. The two clamping plates clamp and fix the workpiece to be repaired by the pad material.

[0021] Step 2: The switching motor in the power unit drives the switching shaft and switching turntable to rotate, so that the wound pretreatment mechanism faces downward. The repair lateral movement mechanism drives the wound pretreatment mechanism to move laterally and align with the front end of the wound on the workpiece to be repaired. The repair height adjustment mechanism drives the wound pretreatment mechanism to move downward. The repair longitudinal movement mechanism drives the wound pretreatment mechanism to move backward. The processing motor in the wound pretreatment mechanism drives the processing shaft and disassembly sleeve to rotate, thereby driving the prism and pretreatment grinding head to rotate. The pretreatment grinding head rotates to grind and pretreat the wound on the workpiece to be repaired.

[0022] Step 3: Repair the height adjustment mechanism, repair the horizontal movement mechanism and repair the vertical movement mechanism to reset the wound pretreatment mechanism, and switch the motor in the power unit to drive the switching shaft and switching turntable to continue rotating, so that the damage repair mechanism faces downward.

[0023] Step four: The repair height adjustment mechanism, repair transverse movement mechanism, and repair longitudinal movement mechanism drive the damage repair mechanism to move along the path of grinding pretreatment. The wire feeding motor in the wire feeding assembly serves as a power source to drive the roller shaft and wire feeding roller to rotate in opposite directions. The annular groove limits the cladding wire. The friction of the wire feeding roller on the cladding wire causes the cladding wire to be conveyed downward along the wire feeding limit tube. The main body of the laser cladding device melts the bottom end of the cladding wire. The melted cladding wire falls into the wound of the workpiece to be repaired, completing the cladding repair.

[0024] Step 5: The repair height adjustment mechanism, repair lateral movement mechanism, and repair longitudinal movement mechanism drive the damage repair mechanism to reset. The switching motor in the switching power assembly drives the switching shaft and switching turntable to rotate again, so that the grinding repair mechanism faces downward. The repair height adjustment mechanism, repair lateral movement mechanism, and repair longitudinal movement mechanism drive the grinding repair mechanism to move along the cladding repair path. The grinding motor in the grinding repair mechanism drives the grinding wheel to rotate. The grinding wheel grinds down the protruding cladding material at the damaged part of the workpiece, completing the grinding work at the wound after the repair is completed.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: The rapid repair device and method for workpiece surface damage have the following advantages:

[0026] 1. The temperature control switch controls the operation of the preheating heating wire. The preheating heating wire heats the heat-conducting sleeve, and the heat conduction of the heat-conducting sleeve preheats the cladding wire in the wire feeding limit tube. This preheating of the cladding wire facilitates the rapid melting of the cladding wire by the main body of the laser cladding device, thereby improving the repair efficiency.

[0027] 2. The motor drives the processing shaft and disassembly sleeve to rotate, which in turn drives the prism and pre-treatment grinding head to rotate. The rotation of the pre-treatment grinding head can grind the sharp edges of the damaged areas on the workpiece surface, avoiding the situation where the damaged area is too narrow and the sharp edges obstruct the molten cladding wire cannot completely fill the damaged area. This facilitates the molten cladding wire to fill the damaged area, avoiding the formation of pores in the damaged area after repair, which would affect the quality of the workpiece, resulting in high repair quality.

[0028] 3. The longitudinal movement mechanism can drive the process switching mechanism and the damage repair mechanism to move back and forth, while the transverse movement mechanism can drive the process switching mechanism and the damage repair mechanism to move left and right. This allows the damage repair mechanism to move along the path of the workpiece wound. The wire feeding assembly can transport the cladding wire downward along the wire feeding limit tube to the damaged area of ​​the workpiece. The cladding wire preheating assembly preheats the cladding wire that has passed through the wire feeding limit tube, and then it is heated and melted by the laser emitted by the main body of the laser cladding device. The molten cladding material enters the wound on the surface of the workpiece and cools and solidifies, quickly completing the initial repair operation with high repair efficiency. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the rapid repair device for workpiece surface damage according to the present invention;

[0030] Figure 2 This is a schematic diagram of the damage repair mechanism of the rapid repair device for workpiece surface damage according to the present invention;

[0031] Figure 3 This invention relates to a rapid repair device for workpiece surface damage. Figure 2 Enlarged structural diagram at point A in the middle;

[0032] Figure 4 This is a schematic diagram of the wound pretreatment mechanism of the rapid repair device for workpiece surface damage according to the present invention;

[0033] Figure 5 This is a side view of the rapid repair device for workpiece surface damage according to the present invention.

[0034] Figure 6 This is a schematic diagram of the rear structure of the rapid repair device for workpiece surface damage according to the present invention;

[0035] Figure 7 This is a schematic diagram of the damage repair mechanism of the rapid repair device for workpiece surface damage according to the present invention;

[0036] Figure 8 This is a schematic diagram of the bottom structure of the rapid repair device for workpiece surface damage according to the present invention;

[0037] Figure 9 This is a schematic diagram of the workpiece clamping mechanism holding the workpiece to be repaired in the rapid repair device for workpiece surface damage of the present invention;

[0038] Figure 10 This is a schematic diagram of the structure of the rapid repair device for workpiece surface damage of the present invention when the grinding and repair mechanism is set downwards;

[0039] Figure 11 This is a physical image of the rapid repair device for workpiece surface damage according to the present invention.

[0040] In the diagram: 1. Repair seat plate; 2. Repair longitudinal movement mechanism; 21. Support; 22. Longitudinal slide bar; 23. Longitudinal stud; 24. Upright pole; 25. Top crossbeam; 26. Longitudinal movement motor; 3. Repair transverse movement mechanism; 31. Transverse slide groove; 32. Transverse stud; 33. Transverse slide block; 34. Transverse movement motor; 4. Repair height adjustment mechanism; 41. Vertical slide sleeve; 42. Lifting plate; 43. Base; 44. Top seat; 45. Electric telescopic rod; 5. Process switching mechanism; 51. Rotary seat; 52. Switching shaft; 53. Fixed support. Frame, 54 Motor sleeve, 55 Switching motor, 56 Switching turntable, 57 Sliding rod, 58 Locking gear, 59 Locking tooth, 510 Control top plate, 511 Locking stud, 512 Locking motor, 6 Damage repair mechanism, 61 Repair mounting base, 62 Wire feeding limit tube, 63 Wire feeding shaft, 64 Winding roller, 65 Fusing wire, 66 Wire feeding motor, 67 Bore frame, 68 Roller shaft, 69 Wire feeding roller, 610 Movable seat, 611 Arc limit rod, 612 Limit pin 613 Movable mounting rod, 614 Heat-conducting sleeve, 615 Temperature control switch, 616 Preheating heating wire, 617 Protective sleeve, 618 Heat insulation sleeve, 619 Main body of laser cladding device, 7 Wound pretreatment mechanism, 71 Treatment mounting base, 72 Treatment motor, 73 Treatment shaft, 74 Disassembly sleeve, 75 Disassembly bolt, 76 Prism, 77 Pretreatment grinding head, 8 Grinding and repair mechanism, 81 Grinding mounting base, 82 Cantilever, 83 Grinding shaft, 84 Round bushing, 85 Grinding wheel, 86 Grinding motor, 87 Circular pressure plate, 88 Replacement stud, 9 Workpiece clamping mechanism, 91 End seat, 92 Horizontal through groove, 93 Stud, 94 Nut, 95 Center connector, 96 Clamping motor, 97 Horizontal slide bar, 98 Clamping plate, 99 Pad material, 910 Clip-on connector, 10 Debris cleaning mechanism, 101 Rectangular cleaning blower hood, 102 Hose, 103 Cleaning air pump, 104 Bend frame, 105 Electric telescopic rod II, 11 Support leg, 12 Workpiece to be repaired. Detailed Implementation

[0041] 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.

[0042] Example 1, please refer to Figures 1 to 11 This embodiment provides a technical solution: a rapid repair device for workpiece surface damage, including a repair base plate 1, a process switching mechanism 5 and a damage repair mechanism 6. The four corners of the bottom of the repair base plate 1 are respectively fixedly connected to the support legs 11. The bottom of the support legs 11 is provided with fixing holes. The repair base plate 1 is supported by the support legs 11. The repair base plate 1 and the support legs 11 can be fixed by the fixing holes and bolts.

[0043] A repair longitudinal movement mechanism 2 is installed on the upper side of the repair seat plate 1, a repair transverse movement mechanism 3 is installed on the top of the repair longitudinal movement mechanism 2, and a repair height adjustment mechanism 4 is installed at the bottom of the repair transverse movement mechanism 3.

[0044] The repair longitudinal movement mechanism 2 includes a support 21, a longitudinal slide rod 22, a longitudinal stud 23, a vertical rod 24, a top crossbeam 25, and a longitudinal movement motor 26. The left side of the upper surface of the repair base plate 1 is rotatably connected to both ends of the longitudinal stud 23 via two supports 21. The right side of the upper surface of the repair base plate 1 is fixedly connected to both ends of the longitudinal slide rod 22 via two supports 21. The bottom ends of the top crossbeam 25 are respectively fixedly connected to the tops of the two vertical rods 24. The threaded hole at the bottom of the left vertical rod 24 is threadedly connected to the longitudinal stud 23, and the right vertical rod 24... The bottom sliding hole is slidably connected to the longitudinal sliding rod 22. One end of the longitudinal stud 23 is fixedly connected to the output shaft of the longitudinal movement motor 26, which is fixed on the repair base plate 1. In use, the longitudinal movement motor 26 drives the longitudinal stud 23 to rotate clockwise. Through the thread action between the longitudinal stud 23 and the upright rod 24, the upright rod 24 and the top crossbeam 25 can move forward along the longitudinal sliding rod 22. When the longitudinal movement motor 26 drives the longitudinal stud 23 to rotate counterclockwise, the upright rod 24 and the top crossbeam 25 move backward along the longitudinal sliding rod 22.

[0045] The repair transverse movement mechanism 3 includes a transverse slide groove 31, a transverse stud 32, a transverse slider 33, and a transverse movement motor 34. The transverse slide groove 31 is provided in the middle of the top crossbeam 25. The transverse stud 32 is rotatably connected in the transverse slide groove 31. The transverse slider 33 is slidably connected in the transverse slide groove 31. The screw hole on the side of the transverse slider 33 is threadedly connected to the transverse stud 32. One end of the transverse stud 32 is fixedly connected to the output shaft of the transverse movement motor 34. The transverse movement motor 34 is fixed at the end of the top crossbeam 25. The transverse slider 33 is the moving part of the repair transverse movement mechanism 3. When in use, the transverse movement motor 34 drives the transverse stud 32 to rotate clockwise. The thread action between the transverse stud 32 and the transverse slider 33 drives the transverse slider 33 to move to the left along the transverse slide groove 31. When the transverse movement motor 34 drives the transverse stud 32 to rotate counterclockwise, the transverse slider 33 moves to the right along the transverse slide groove 31.

[0046] The repair height adjustment mechanism 4 includes a vertical sliding sleeve 41, a lifting plate 42, a base 43, a top seat 44, and an electric telescopic rod 45. The bottom of the horizontal sliding slider 33 is fixedly connected to the top of the vertical sliding sleeve 41. The bottom inner side of the vertical sliding sleeve 41 is vertically slidably connected to the lifting plate 42. The top seat 44 is fixedly connected to the right side of the vertical sliding sleeve 41, and the base 43 is fixedly connected to the right side of the lifting plate 42. The bottom of the top seat 44 is fixedly connected to the top of the base 43 through the electric telescopic rod 45. The extension and retraction of the electric telescopic rod 45 can drive the lifting plate 42 to slide up and down relative to the vertical sliding sleeve 41. When the electric telescopic rod 45 extends, the lifting plate 42 extends out of the vertical sliding sleeve 41, thereby driving the process switching mechanism 5 and the damage repair mechanism 6 to descend and perform the repair operation.

[0047] The process switching mechanism 5 includes a rotating base 51, a switching shaft 52, a switching turntable 56, a switching power component, and a switching position locking component. In the repair height adjustment mechanism 4, the bottom end of the lifting plate 42 is fixedly connected to the rotating base 51. The rotating base 51 is rotatably connected to the horizontal switching shaft 52 through a bearing. The right end of the switching shaft 52 is fixedly connected to the switching turntable 56. The left end of the switching shaft 52 is equipped with the switching power component, and the middle part of the switching shaft 52 is connected to the switching position locking component.

[0048] The switching power assembly includes a fixed bracket 53, a motor sleeve 54, and a switching motor 55. The left end of the switching shaft 52 is fixedly connected to the output shaft of the switching motor 55. The motor sleeve 54 is fitted onto the outside of the switching motor 55, and the motor sleeve 54 is fixedly installed on the left side of the lifting plate 42 via the fixed bracket 53. The fixed bracket 53 is used to fix the motor sleeve 54, and the motor sleeve 54 is used to install the switching motor 55. When the switching motor 55 operates, it drives the switching shaft 52 to rotate, thereby causing the switching turntable 56 to rotate.

[0049] The position switching locking assembly includes a sliding rod 57, a locking gear 58, a locking tooth 59, a control top plate 510, a locking stud 511, and a locking motor 512. The locking gear 58 is fixedly sleeved in the middle of the switching shaft 52. The sliding rod 57 is vertically slidably connected in the sliding hole on the fixed bracket 53. The bottom of the sliding rod 57 is fixedly connected to the locking tooth 59, which corresponds to the locking gear 58. The top of the sliding rod 57 is fixedly connected to the control top plate 510. The vertical locking stud 511 is rotatably connected to the fixed bracket 53 through a mounting bearing. The locking stud 511 is threadedly connected to the screw hole on the control top plate 510. The bottom of the locking stud 511 is fixedly connected to the output shaft of the locking motor 512. The locking motor 512 is fixed to the bottom of the fixed bracket 53. Once the switching shaft 52 and switching turntable 56 have rotated to the desired position, the locking motor 512 operates, driving the locking stud 511 to rotate clockwise. The threaded action between the locking stud 511 and the control top plate 510 causes the control top plate 510 and the sliding rod 57 to move downward along the sliding hole on the fixed bracket 53, thereby causing the locking tooth 59 to move downward and engage with the top of the locking gear 58, thus locking the switching shaft 52. The locking motor 512 operates, driving the locking stud 511 to rotate counterclockwise, which can cause the locking tooth 59 to move upward and disengage from the top of the locking gear 58. At this time, the switching shaft 52 and switching turntable 56 can be allowed to rotate again.

[0050] The damage repair mechanism 6 includes a repair mounting base 61, a wire feeding limiting tube 62, a wire feeding assembly, a cladding wire preheating assembly, a cladding angle adjustment assembly, and a laser cladding device body 619. The repair mounting base 61 is fixedly connected to the bottom right side of the switching turntable 56. The repair mounting base 61 is fixedly connected to the top of the wire feeding limiting tube 62. The wire feeding assembly is installed on the top of the repair mounting base 61. The cladding wire preheating assembly is installed on the bottom outer periphery of the wire feeding limiting tube 62. The front and rear sides of the repair mounting base 61 are respectively connected to two laser cladding device bodies 619 through two cladding angle adjustment assemblies. The bottom ends of the two laser cladding device bodies 619 face the bottom of the wire feeding limiting tube 62.

[0051] The wire feeding assembly includes a wire feeding shaft 63, a winding roller 64, a wire feeding motor 66, a bobbin 67, rollers 68, and a wire feeding roller 69. The wire feeding shaft 63 is fixedly connected to the top right side of the switching turntable 56. The winding roller 64 is rotatably connected to the wire feeding shaft 63. The winding roller 64 is wound with cladding wire 65. One end of the cladding wire 65 passes through the wire feeding limiting tube 62. The bobbin 67 is fixedly connected to the repair mounting base 61 at the front and rear sides of the wire feeding limiting tube 62. Two longitudinal rollers 68 are rotatably connected inside the two bobbin 67. Two wire feeding rollers 69 are fixedly sleeved on the two rollers 68. The middle part of the two wire feeding rollers 69 is provided with annular grooves. The front and rear sides of the cladding wire 65 are respectively engaged with the two annular grooves. The output shaft of the wire feeding motor 66 is fixedly connected to the end of the roller 68. The wire feeding motor 66 is fixed to the end of the bobbin 67.

[0052] The unwinding shaft 63 allows the winding roller 64 to rotate freely, thereby releasing the cladding wire 65 on the winding roller 64. The rotating feed roller 69 on the bobbin 67 rotates in opposite directions, driving the cladding wire 65 to be conveyed downward along the feed limiting tube 62. The feed motor 66 serves as a power source, driving the roller shaft 68 and the feed roller 69 to rotate. The annular groove limits the cladding wire 65, allowing the winding roller 64 to smoothly and stably convey the cladding wire 65 downward.

[0053] The cladding angle adjustment assembly includes a movable seat 610, an arc-shaped limiting rod 611, a limiting pin 612, and a movable mounting rod 613. Two movable seats 610 are fixedly connected to the bottom of the front and rear sides of the repair mounting seat 61. One end of two movable mounting rods 613 is movably connected to the two movable seats 610 via movable columns. The other end of the two movable mounting rods 613 is fixedly connected to the top of the two laser cladding device bodies 619. Two arc-shaped limiting rods 611 are fixedly connected to the front and rear sides of the repair mounting seat 61. The center of the circle of the arc-shaped limiting rod 611 coincides with the center of the movable column. Multiple insertion holes are opened at equal angles on the arc-shaped limiting rod 611. A limiting pin 612 is inserted into the circular hole on the movable mounting rod 613. The limiting pin 612 is inserted into the corresponding insertion hole on the arc-shaped limiting rod 611.

[0054] To prevent the limit pin 612 from detaching from the movable mounting rod 613 and the arc-shaped limit rod 611, limit nuts are threaded onto both ends of the limit pin 612. When it is necessary to adjust the tilt angle of the laser cladding device body 619, the limit nuts are unscrewed, the limit pin 612 is pulled out, and the movable mounting rod 613 moves relative to the movable seat 610 through the movable column. After changing the tilt angle of the laser cladding device body 619, the limit pin 612 is reinserted, allowing it to reconnect with the corresponding insertion hole on the arc-shaped limit rod 611. The limit nuts at both ends of the limit pin 612 are tightened to complete the adjustment of the angle of the laser cladding device body 619, aligning the laser cladding device body 619 with the bottom end of the cladding wire 65.

[0055] The cladding wire preheating assembly includes a heat-conducting sleeve 614, a temperature control switch 615, a preheating heating wire 616, a protective sleeve 617, and a heat insulation sleeve 618. The heat-conducting sleeve 614 is fixedly sleeved on the bottom outer periphery of the wire feeding limit tube 62. The temperature control switch 615 is installed on the heat-conducting sleeve 614. The outer side of the heat-conducting sleeve 614 is wrapped with a spiral preheating heating wire 616. The outer side of the heat-conducting sleeve 614 is sleeved with a protective sleeve 617, which covers the preheating heating wire 616. The outer side of the protective sleeve 617 is sleeved with a heat insulation sleeve 618. The input end of the preheating heating wire 616 is electrically connected to the output end of an external power supply through the temperature control switch 615. The temperature control switch 615 controls the operation of the preheating heating wire 616 using existing technology. The heat-conducting sleeve 614 is made of copper, and the heat insulation sleeve 618 is made of foam.

[0056] Temperature control switch 615 controls the operation of preheating heating wire 616. Preheating heating wire 616 heats heat conducting sleeve 614. The heat conduction of conducting sleeve 614 preheats cladding wire 65 in wire feeding limit tube 62, so that the bottom of cladding wire 65 can be quickly heated and melted by laser cladding device body 619. Protective sleeve 617 is used to protect preheating heating wire 616. Insulation sleeve 618 keeps protective sleeve 617 warm and reduces heat loss.

[0057] In use, the repair longitudinal movement mechanism 2 can drive the process switching mechanism 5 and the damage repair mechanism 6 to move back and forth, the repair transverse movement mechanism 3 can drive the process switching mechanism 5 and the damage repair mechanism 6 to move left and right, so that the damage repair mechanism 6 can move along the path of the workpiece wound, the repair height adjustment mechanism 4 can drive the process switching mechanism 5 and the damage repair mechanism 6 to move up and down, so that the damage repair mechanism 6 can move down closer to the damaged part of the workpiece during repair, and the switching power component can drive the switching shaft 52 to rotate relative to the rotating base 51, so that the repair mounting base 61 can rotate through the switching turntable 56.

[0058] When the repair mounting base 61 is set downwards on the right side of the switching turntable 56, the wire feeding assembly, the cladding wire preheating assembly, and the laser cladding device body 619 can be operated. At this time, the switching position locking assembly can be used to lock the switching shaft 52 to prevent the uncontrolled rotation of the switching shaft 52 from changing the position of the damage repair mechanism 6. The wire feeding assembly can feed the cladding wire 65 downwards along the wire feeding limit tube 62 to the damaged area of ​​the workpiece. The cladding wire preheating assembly preheats the cladding wire 65 that has passed through the wire feeding limit tube 62, and then it is heated and melted by the laser emitted by the laser cladding device body 619. The molten cladding material enters the wound on the surface of the workpiece and cools and solidifies, quickly completing the initial repair operation. The cladding angle adjustment assembly can adjust the tilt angle of the laser cladding device body 619, so that the melting laser emitted by the laser cladding device body 619 can be aimed at the cladding wire 65.

[0059] Example 2, please refer to Figures 1 to 11 This embodiment provides a technical solution: a rapid repair device for workpiece surface damage. This embodiment is structurally similar to Embodiment 1, with the difference being:

[0060] It also includes a wound pretreatment mechanism 7 and a grinding and repair mechanism 8. The wound pretreatment mechanism 7 is installed at the front right side of the switching turntable 56, and the grinding and repair mechanism 8 is installed at the rear right side of the switching turntable 56. When the switching turntable 56 rotates so that the wound pretreatment mechanism 7 faces downward, the wound pretreatment mechanism 7 can grind and pretreat the wound edges on the workpiece surface, which is conducive to the filling of the wound by the molten cladding material. When the switching turntable 56 rotates so that the grinding and repair mechanism 8 faces downward, the grinding and repair mechanism 8 can grind down the solidified cladding material protruding at the wound, keeping the workpiece surface smooth and beautiful.

[0061] The wound pretreatment mechanism 7 includes a treatment mounting base 71, a treatment motor 72, a treatment shaft 73, a disassembly sleeve 74, a disassembly bolt 75, a prism 76, and a pretreatment grinding head 77. The treatment mounting base 71 is fixedly connected to the front right side of the switching turntable 56. The treatment motor 72 is fixedly mounted on the front side of the treatment mounting base 71. The output shaft on the front side of the treatment motor 72 is fixedly connected to the rear end of the treatment shaft 73. The disassembly sleeve 74 is fixedly connected to the front end of the treatment shaft 73. The prism 76 is inserted into the prism groove on the front side of the disassembly sleeve 74. The pretreatment grinding head 77 is fixedly connected to the front end of the prism 76. The disassembly bolt 75 is threaded into the threaded hole on the side of the disassembly sleeve 74 and abuts against the prism 76.

[0062] The operation of the processing motor 72 drives the processing shaft 73 and the disassembly sleeve 74 to rotate, which in turn drives the prism 76 and the pre-treatment grinding head 77 to rotate. The rotation of the pre-treatment grinding head 77 can grind the edges and corners of the damaged area on the workpiece surface, which is convenient for subsequent cladding repair. Depending on the size of the damage, different prisms 76 and pre-treatment grinding heads 77 can be replaced. Loosen the disassembly bolt 75, pull out the prism 76 and the pre-treatment grinding head 77 from the prism groove, replace it with a new prism 76 and the pre-treatment grinding head 77, and then tighten the disassembly bolt 75 again.

[0063] The grinding and repair mechanism 8 includes a grinding mounting base 81, a cantilever 82, a grinding shaft 83, a circular bushing 84, a grinding wheel 85, a grinding motor 86, a circular pressure plate 87, and replacement studs 88. The grinding mounting base 81 is fixedly connected to the rear right side of the switching turntable 56. The rear side of the grinding mounting base 81 is connected to one end of the cantilever 82 via a reinforcing rib. The other end of the cantilever 82 is rotatably connected to the transverse grinding shaft 83. One end of the grinding shaft 83 is fixedly connected to the grinding motor 86, which is fixed on the cantilever 82. The other end of the grinding shaft 83 is fixedly connected to the middle of one side of the circular bushing 84. Three replacement studs 88 are arranged in a circular array on the other side of the circular bushing 84. The three replacement studs 88 pass through the grinding wheel 85 and the circular pressure plate 87 in sequence. The end of the replacement stud 88 away from the circular bushing 84 is threaded with a clamping nut, which clamps the circular pressure plate 87.

[0064] The circular pressure plate 87 fixes the grinding wheel 85. The grinding motor 86 drives the grinding shaft 83 to rotate. The grinding shaft 83 drives the grinding wheel 85 to rotate through the circular bushing 84 and the replacement studs 88. The grinding wheel 85 grinds down the protruding cladding material at the damaged part of the workpiece, completing the final repair work. Tighten the clamping nut, remove the circular pressure plate 87, and replace the new grinding wheel 85. Then, install the circular pressure plate 87 and the clamping nut. The three replacement studs 88 can prevent the grinding wheel 85 from rotating relative to the circular bushing 84 due to resistance during grinding.

[0065] Example 3, please refer to Figures 1 to 11 This embodiment provides a technical solution: a rapid repair device for workpiece surface damage. This embodiment is structurally similar to Embodiment 2, with the difference being:

[0066] It also includes a workpiece clamping mechanism 9. The workpiece clamping mechanism 9 is installed on the upper middle part of the repair base plate 1. The workpiece clamping mechanism 9 is located below the middle part of the repair transverse movement mechanism 3. The workpiece clamping mechanism 9 is used to clamp and fix the workpiece to be repaired to prevent the workpiece from moving when processing or repairing the workpiece.

[0067] The workpiece clamping mechanism 9 includes an end seat 91, a transverse groove 92, studs 93, nuts 94, a central connecting post 95, a clamping motor 96, a horizontal slide bar 97, a clamping plate 98, padding material 99, and a snap-fit ​​post 910. A transverse groove 92 is provided in the upper center of the repair base plate 1. Two studs 93 are fixedly connected to the left and right ends of the central connecting post 95, respectively. The threads on the two studs 93 are in opposite directions, forming a bidirectional screw. End seats 91 are fixedly connected to the bottom of the repair base plate 1 at the left and right ends of the transverse groove 92, respectively. The two end seats 91 are rotatably connected to the two ends of the bidirectional screw. One end of the bidirectional screw is fixedly connected to the output shaft of the clamping motor 96. 6. The motor is fixed to the bottom of the repair base plate 1. The two studs 93 in the double screw are threaded to the two nuts 94 respectively. The tops of the two nuts 94 are fixed to the bottom ends of the two horizontal slide rods 97 respectively. The two horizontal slide rods 97 are slidably connected to the horizontal through groove 92. The tops of the two horizontal slide rods 97 are fixed to the two clamping plates 98 respectively. The two clamping plates 98 are respectively provided with pads 99 on opposite sides. The clamping plates 98 have two locking holes. The side of the pads 99 near the clamping plates 98 is fixedly connected to the locking pins 910 that engage with the locking holes. The pads 99 are fixed by the engagement of the locking pins 910 and the locking holes. The pads 99 and the locking pins 910 are both made of ABS material.

[0068] When the clamping motor 96 operates, it drives the bidirectional screw to rotate clockwise. The threads of the bidirectional screw and the two nuts 94 cause the two nuts 94 and the two horizontal sliding rods 97 to move closer to each other along the horizontal through groove 92, thereby causing the two clamping plates 98 to move closer to each other. The two clamping plates 98 clamp and fix the workpiece on both sides through the pad material 99. After the pad material 99 is worn, it can be replaced with a new one through the snap-fit ​​post 910. When the clamping motor 96 operates, it drives the bidirectional screw to rotate counterclockwise, and the two clamping plates 98 move away from each other, which can release the workpiece.

[0069] Example 4, please refer to Figures 1 to 11 This embodiment provides a technical solution: a rapid repair device for workpiece surface damage. This embodiment is structurally similar to Embodiment 3, with the difference being:

[0070] It also includes a debris removal mechanism 10, which comprises a rectangular cleaning blower hood 101 and a blowing and air supply assembly. A rectangular through groove is provided on the front side of the upper surface of the repair base plate 1, and the rectangular cleaning blower hood 101 is vertically slidably connected in the rectangular through groove. A rear air outlet is provided on the top rear side of the rectangular cleaning blower hood 101, and the blowing and air supply assembly is connected to the bottom of the rectangular cleaning blower hood 101. During grinding or smoothing, excessive debris will be generated, affecting the observation of the damaged area of ​​the workpiece. The blowing and air supply assembly is used to supply air into the rectangular cleaning blower hood 101 and blow it onto the surface of the workpiece through the air outlet to blow away the debris that falls off during grinding, so as to avoid affecting the observation of the wound. At the same time, it can also cool the molten cladding material, promoting the rapid cooling and solidification of the cladding material.

[0071] The air blowing assembly includes a hose 102 and a cleaning air pump 103. The bottom of the rectangular cleaning blower hood 101 is connected to one end of the hose 102, and the other end of the hose 102 is connected to the air outlet of the cleaning air pump 103. The cleaning air pump 103 works to blow air into the rectangular cleaning blower hood 101 through the hose 102, thereby blowing out air for cleaning debris through the air outlet.

[0072] The debris removal mechanism 10 also includes a bending frame 104 and an electric telescopic rod 105. The bottom of the rectangular cleaning blower hood 101 is fixedly connected to the top of the electric telescopic rod 105, and the bottom of the electric telescopic rod 105 is fixedly connected to the bending frame 104. The bending frame 104 is fixed to the bottom of the repair base plate 1. The extension and retraction of the electric telescopic rod 105 can drive the rectangular cleaning blower hood 101 to move up and down in the rectangular through groove, thereby changing the height of the rectangular cleaning blower hood 101 so that the air nozzle can be aimed at the workpiece surface at different heights, ensuring that the debris generated during the grinding of the workpiece surface can be blown away. When not in use, the rectangular cleaning blower hood 101 can be lowered and retracted into the rectangular through groove to keep the upper surface of the repair base plate 1 flat.

[0073] Please see Figures 1 to 11 A method for repairing surface damage of a workpiece using a rapid repair device includes the following steps:

[0074] Step 1: Place the damaged surface of the workpiece 12 to be repaired upwards on the upper middle part of the repair base plate 1. The clamping motor 96 in the workpiece clamping mechanism 9 drives the bidirectional screw to rotate clockwise. The thread action between the bidirectional screw and the two nuts 94 drives the two nuts 94 and the two horizontal slide bars 97 to move closer to each other along the horizontal through groove 92, thereby driving the two clamping plates 98 to move closer to each other. The two clamping plates 98 clamp and fix the workpiece 12 to be repaired through the pad material 99.

[0075] Step 2: The switching motor 55 in the switching power assembly drives the switching shaft 52 and the switching turntable 56 to rotate, so that the wound pretreatment mechanism 7 faces downward. The repair lateral movement mechanism 3 drives the wound pretreatment mechanism 7 to move laterally and align with the front end of the wound on the workpiece to be repaired. The repair height adjustment mechanism 4 drives the wound pretreatment mechanism 7 to move downward. The repair longitudinal movement mechanism 2 drives the wound pretreatment mechanism 7 to move backward. The processing motor 72 in the wound pretreatment mechanism 7 drives the processing shaft 73 and the disassembly sleeve 74 to rotate, thereby driving the prism 76 and the pretreatment grinding head 77 to rotate. The pretreatment grinding head 77 rotates to grind and pretreat the wound on the workpiece 12 to be repaired.

[0076] Step 3: Repair the height adjustment mechanism 4, repair the horizontal movement mechanism 3 and repair the vertical movement mechanism 2 to reset the wound pretreatment mechanism 7. In the switching power assembly, the switching motor 55 works to drive the switching shaft 52 and the switching turntable 56 to continue rotating, so that the damage repair mechanism 6 faces downward.

[0077] Step 4: Repair height adjustment mechanism 4, repair transverse movement mechanism 3 and repair longitudinal movement mechanism 2 drive damage repair mechanism 6 to move along the path of grinding pretreatment. The wire feeding motor 66 in the wire feeding assembly serves as a power source to drive the roller shaft 68 and the wire feeding roller 69 to rotate in opposite directions. The annular groove limits the cladding wire 65. The friction of the wire feeding roller 69 on the cladding wire 65 causes the cladding wire 65 to be conveyed downward along the wire feeding limit tube 62. The main body 619 of the laser cladding device melts the bottom end of the cladding wire 65. The melted cladding wire 65 falls into the wound of the workpiece to be repaired, completing the cladding repair.

[0078] Step 5: Repair height adjustment mechanism 4, repair horizontal movement mechanism 3, and repair vertical movement mechanism 2 drive the damage repair mechanism 6 to reset. The switching motor 55 in the switching power assembly drives the switching shaft 52 and switching turntable 56 to rotate again, so that the grinding repair mechanism 8 faces downward. Repair height adjustment mechanism 4, repair horizontal movement mechanism 3, and repair vertical movement mechanism 2 drive the grinding repair mechanism 8 to move along the cladding repair path. The grinding motor 86 in the grinding repair mechanism 8 drives the grinding wheel 85 to rotate. The grinding wheel 85 grinds down the protruding cladding material at the damaged part of the workpiece, completing the grinding work at the wound after repair.

[0079] It is worth noting that the input ends of the longitudinal movement motor 26, transverse movement motor 34, electric telescopic rod 1 45, switching motor 55, locking motor 512, wire feeding motor 66, laser cladding device body 619, processing motor 72, grinding motor 86, clamping motor 96, cleaning air pump 103, and electric telescopic rod 2 105 disclosed in the above embodiments are all electrically connected to the output end of an external power supply through an external controller. The control method adopts the method commonly used in the prior art. Among them, the longitudinal movement motor 26, transverse movement motor 34, switching motor 55, locking motor 512, wire feeding motor 66, processing motor 72, grinding motor 86, and clamping motor 96 are all servo motors, and the specific models and power are selected according to the actual situation.

[0080] 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 rapid repair device for workpiece surface damage, characterized in that, include: Repair seat plate (1), repair longitudinal movement mechanism (2) is installed on the upper side, repair transverse movement mechanism (3) is installed on the top of the repair longitudinal movement mechanism (2), and repair height adjustment mechanism (4) is installed on the moving part of the repair transverse movement mechanism (3). The process switching mechanism (5) includes a switching power component and a switching position locking component. The bottom end of the lifting plate (42) in the repair height adjustment mechanism (4) is fixedly connected to a rotating base (51). A horizontal switching shaft (52) is rotatably connected to the rotating base (51) via a bearing. A switching turntable (56) is fixedly connected to the right end of the switching shaft (52). A switching power component is installed on the left end of the switching shaft (52), and a switching position locking component is connected to the middle of the switching shaft (52). The damage repair mechanism (6) includes a wire feeding assembly, a cladding wire preheating assembly, a cladding angle adjustment assembly, and a laser cladding device body (619). A repair mounting base (61) is fixedly connected to the bottom right side of the switching turntable (56). The repair mounting base (61) is fixedly connected to the top of the wire feeding limit tube (62). The top of the repair mounting base (61) is equipped with a wire feeding assembly. The bottom outer periphery of the wire feeding limit tube (62) is equipped with a cladding wire preheating assembly. The front and rear sides of the repair mounting base (61) are respectively connected to two laser cladding device bodies (619) through two cladding angle adjustment assemblies. The bottom ends of the two laser cladding device bodies (619) face the bottom of the wire feeding limit tube (62). It also includes a workpiece clamping mechanism (9), which is installed on the upper middle part of the repair seat plate (1) and is located below the middle part of the repair transverse movement mechanism (3).

2. The rapid repair device for workpiece surface damage according to claim 1, characterized in that: The switching power assembly includes a switching motor (55), and the left end of the switching shaft (52) is fixedly connected to the output shaft of the switching motor (55). The switching motor (55) is fixedly installed on the left side of the lifting plate (42) by a fixed bracket (53).

3. The rapid repair device for workpiece surface damage according to claim 2, characterized in that: The switching position locking assembly includes a locking motor (512), a locking gear (58) is fixedly sleeved in the middle of the switching shaft (52), a sliding rod (57) is vertically slidably connected in the sliding hole on the fixed bracket (53), a locking tooth (59) corresponding to the upper and lower of the locking gear (58) is fixedly connected to the bottom of the sliding rod (57), a control top plate (510) is fixedly connected to the top of the sliding rod (57), a vertical locking stud (511) is rotatably connected to the fixed bracket (53), the locking stud (511) is threadedly connected to the screw hole on the control top plate (510), the bottom of the locking stud (511) is fixedly connected to the output shaft of the locking motor (512), and the locking motor (512) is fixed to the bottom of the fixed bracket (53).

4. The rapid repair device for workpiece surface damage according to claim 3, characterized in that: The wire feeding assembly includes a wire feeding motor (66). A wire feeding shaft (63) is fixedly connected to the top right side of the switching turntable (56). A wire winding roller (64) is rotatably connected to the wire feeding shaft (63). A cladding wire (65) is wound on the wire winding roller (64). One end of the cladding wire (65) passes through the wire feeding limit tube (62). A bobbin frame (67) is fixedly connected to the repair mounting base (61) at the front and rear sides of the wire feeding limit tube (62). Two longitudinal roller shafts (68) are rotatably connected inside the two bobbin frames (67). Two wire feeding rollers (69) are fixedly sleeved on the two roller shafts (68). Annular grooves are opened in the middle of the two wire feeding rollers (69). The front and rear sides of the cladding wire (65) cooperate with the two annular grooves respectively. The output shaft of the wire feeding motor (66) is fixedly connected to the roller shaft (68). The wire feeding motor (66) is fixed at the end of the bobbin frame (67).

5. The rapid repair device for workpiece surface damage according to claim 4, characterized in that: The cladding angle adjustment assembly includes an arc-shaped limiting rod (611). Two movable seats (610) are fixedly connected to the bottom of the front and rear sides of the repair mounting base (61). One end of two movable mounting rods (613) are movably connected to the two movable seats (610) through movable columns. The other end of the two movable mounting rods (613) is fixedly connected to the top of the two laser cladding device bodies (619). Two arc-shaped limiting rods (611) are fixedly connected to the front and rear sides of the repair mounting base (61). Multiple insertion holes are opened at equal angles on the arc-shaped limiting rods (611). Limiting pins (612) are inserted into the circular holes on the movable mounting rods (613). The limiting pins (612) are inserted into the corresponding insertion holes on the arc-shaped limiting rods (611).

6. The rapid repair device for workpiece surface damage according to claim 5, characterized in that: The cladding wire preheating assembly includes a temperature control switch (615) and a preheating heating wire (616). A heat-conducting sleeve (614) is fixedly sleeved on the bottom outer periphery of the wire feeding limit tube (62). A temperature control switch (615) is installed on the heat-conducting sleeve (614). A spiral preheating heating wire (616) is wound around the outside of the heat-conducting sleeve (614). A protective sleeve (617) is sleeved on the outside of the heat-conducting sleeve (614). The protective sleeve (617) wraps around the preheating heating wire (616). A heat insulation sleeve (618) is sleeved on the outside of the protective sleeve (617).

7. The rapid repair device for workpiece surface damage according to claim 6, characterized in that: It also includes a wound pretreatment mechanism (7) and a smoothing and repair mechanism (8). The wound pretreatment mechanism (7) is installed at the front right side of the switching turntable (56), and the smoothing and repair mechanism (8) is installed at the rear right side of the switching turntable (56).

8. The rapid repair device for workpiece surface damage according to claim 7, characterized in that: It also includes a debris cleaning mechanism (10), which includes a rectangular cleaning blower hood (101) and a blower assembly. A rectangular through groove is provided on the front side of the upper surface of the repair seat plate (1). The rectangular cleaning blower hood (101) is vertically slidably connected in the rectangular through groove. A blower port for blowing air backward is provided on the rear side of the top of the rectangular cleaning blower hood (101). The blower assembly is connected to the bottom of the rectangular cleaning blower hood (101).

9. A repair method based on the rapid repair device for workpiece surface damage according to claim 8, characterized in that: Includes the following steps: Step 1: Place the damaged surface of the workpiece to be repaired upwards on the upper middle part of the repair base plate (1), and use the workpiece clamping mechanism (9) to clamp and fix the workpiece to be repaired. Step 2: The switching motor (55) in the switching power assembly drives the switching shaft (52) and the switching turntable (56) to rotate, so that the wound pretreatment mechanism (7) faces downward. The repair transverse movement mechanism (3) drives the wound pretreatment mechanism (7) to move laterally and align with the front end of the wound of the workpiece to be repaired. The repair height adjustment mechanism (4) drives the wound pretreatment mechanism (7) to move downward. The repair longitudinal movement mechanism (2) drives the wound pretreatment mechanism (7) to move backward. The wound pretreatment mechanism (7) performs grinding pretreatment on the wound. Step 3: Repair the height adjustment mechanism (4), repair the horizontal movement mechanism (3) and repair the vertical movement mechanism (2) to drive the wound pretreatment mechanism (7) to reset, and switch the motor (55) in the power assembly to drive the switching shaft (52) and switching turntable (56) to continue rotating, so that the damage repair mechanism (6) faces downward; Step 4: The wire feeding assembly feeds the cladding wire (65) downward along the wire feeding limit tube (62). The main body (619) of the laser cladding device melts the bottom end of the cladding wire (65). The melted cladding wire (65) falls into the wound of the workpiece to be repaired. The repair height adjustment mechanism (4), the repair transverse movement mechanism (3), and the repair longitudinal movement mechanism (2) drive the damage repair mechanism (6) to move along the path of the grinding pretreatment to complete the cladding repair. Step 5: Repair height adjustment mechanism (4), repair lateral movement mechanism (3) and repair longitudinal movement mechanism (2) drive damage repair mechanism (6) to reset. Switching motor (55) in the power switching assembly drives switching shaft (52) and switching turntable (56) to rotate again, so that grinding repair mechanism (8) faces down. Repair height adjustment mechanism (4), repair lateral movement mechanism (3) and repair longitudinal movement mechanism (2) drive grinding repair mechanism (8) to move along the path of cladding repair, and complete the grinding work on the wound after repair.

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