Laser welding machine for alloy casting repair

Abstract

The invention discloses a laser welding machine for alloy casting repair, and relates to the technical field of welding equipment. Comprising a rack and a side plate, the rack is provided with a delivery assembly, and the side plate is provided with a welding assembly and a grinding assembly; the welding assembly drives a first sliding rod and a second sliding rod through a first motor so that a laser welding gun and a grinding wheel can conduct welding and grinding operation correspondingly, flexible rotation of the grinding wheel is achieved through cooperation of a torsion rod and a limiting ring, and space is reserved for the laser welding gun. The delivery assembly drives a main shaft and a transmission mechanism through a fourth motor, a sliding block drives the alloy casting to move, an electric cylinder drives a groove block and a clamping block to rotate, and turning over of the alloy casting is achieved. The grinding assembly drives a third sliding rod through a fifth motor, so that the grinding machine grinds the surface of the alloy casting. And the automatic feeding and discharging mechanism is further arranged, the repairing efficiency is improved, pre-welding grinding, welding and post-welding flattening of the notch of the alloy casting are achieved, the alloy casting can be turned over, the repairing effect is good, and the repairing efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and more specifically, to a laser welding machine for repairing alloy castings. Background Technology

[0002] During the production and use of alloy castings, defects such as notches and cracks may appear on the surface or inside the castings due to various reasons. These defects can seriously affect the performance and service life of the castings. Traditional repair methods mostly involve manual welding and grinding, which is not only inefficient but also makes it difficult to guarantee the repair quality. With the development of laser technology, laser welding has been widely used in the field of casting repair due to its advantages such as high energy density, high precision, and high speed. However, existing laser welding machines can mostly only perform single welding operations and cannot automatically grind notches or smooth the surface after welding. They also cannot automatically flip the castings over, and the repair process still requires a lot of manual intervention, so the repair efficiency and quality need to be improved. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a laser welding machine for repairing alloy castings.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: a laser welding machine for repairing alloy castings, comprising a frame, a side plate vertically mounted on the frame, a delivery assembly sequentially mounted on the frame, and a welding assembly and a grinding assembly sequentially mounted on the side plate; the welding assembly includes a welding frame vertically mounted on the side plate, a sliding plate mounted on the welding frame, a sliding rod slidably mounted on the sliding plate in a vertical direction, a camera mounted below the sliding rod, a laser welding gun mounted below the sliding rod and next to the camera, a motor mounted above the sliding plate, a gear mounted on the rotating shaft of the motor, a rack mounted at the upper end of the sliding rod meshing with the gear, and a... A plate is provided at the intermediate part, which passes through the welding frame. A slide bar 2 is provided at the end of the plate in the vertical direction. A rack 2 that meshes with gear 1 is provided at the upper end of the slide bar 2. A rotating block is provided at the bottom of the slide bar 2. A motor 2 is provided on the side of the rotating block. A grinding wheel is provided on the rotating shaft of the motor 2. A rack 3 is provided on the rotating block. A rack 4 meshes with the side of the rack 3. The rack 4 is fixed at the bottom of the torsion bar. The torsion bar is rotatably located on the side of the slide bar 2. A limiting ring is provided on the plate for the torsion bar to be inserted. Two grooves are symmetrically provided on the side wall of the torsion bar. The grooves are composed of a straight segment 1, an oblique segment and a straight segment 2 from top to bottom. A boss that is inserted into the groove is provided on the inner side wall of the limiting ring.

[0005] As a preferred embodiment of the present invention, the sliding plate is slidably mounted on the welding frame along the axial direction, and a lead screw is rotatably mounted on the sliding plate. The lead screw forms a threaded engagement with the insert plate. A motor is mounted on the welding frame, and the rotating shaft of the motor is connected to the lead screw.

[0006] As a preferred embodiment of the present invention, the delivery assembly includes two main shafts, which are rotatably mounted at the head and tail of the frame, respectively. Two transmission mechanisms are provided between the two main shafts, and the two transmission wheels of the transmission mechanisms are respectively mounted on the two main shafts. A motor is mounted on the frame, and the rotating shaft of the motor is connected to one of the main shafts. Slider blocks are slidably mounted on the sides of the transmission mechanisms on the frame, and the sliders are connected to the transmission belts of the corresponding transmission mechanisms. The slot block is rotatably mounted on the slider, and a clamping block is slidably mounted on the slot block. An alloy casting is connected between the slot block and the clamping block.

[0007] As a preferred embodiment of the present invention, the clamping block is provided with inclined surface one and inclined surface two on both sides, and a clamping groove for clamping alloy castings is provided in the middle of the clamping block.

[0008] As a preferred embodiment of the present invention, the rotating shaft of the groove block passes through the slider, and a second gear is provided on the rotating shaft of the groove block. A fifth rack meshes above the second gear, and the fifth rack is connected to the telescopic shaft of the electric cylinder. The electric cylinder is fixedly mounted on the slider.

[0009] As a preferred embodiment of the present invention, the grinding assembly includes a grinding frame vertically mounted on the side plate, a sliding rod three is provided on the grinding frame in the vertical direction, a rack six is ​​provided on the upper part of the sliding rod three, a gear three is meshed on the side of the rack six, the gear three is mounted on the rotating shaft of the motor five, the motor five is fixedly mounted on the grinding frame, and a grinding machine for grinding alloy castings is provided at the bottom of the sliding rod three.

[0010] As a preferred embodiment of the present invention, the front part of the frame is provided with a smooth plate, the smooth plate is provided with a waiting groove for placing alloy castings, the top of the frame is provided with a bin for placing alloy castings, a push plate for pushing alloy castings is slidably provided on the smooth plate, the push plate is provided with an arc groove for locking alloy castings, the push plate is provided with a top plate for placing alloy castings, and both ends of the push plate are provided with long rods that are inserted into corresponding sliders, and the long rods are provided with a baffle one and a baffle two.

[0011] As a preferred embodiment of the present invention, the rear of the frame is provided with a stop bar for driving the inclined plane, and the bottom of the rear of the frame is provided with a slide for receiving the alloy casting.

[0012] The advantages of this invention compared with the prior art are: (1) The delivery component of this invention drives the slider to move through the main shaft and transmission mechanism, and automatically feeds the castings with the push plate, top plate and silo. The tail stop triggers the clamp to release and automatically unloads the castings. No manual handling is required throughout the process, which greatly reduces the labor intensity. The slider drives the castings to pass through the welding and grinding stations in sequence, and the process is smoothly connected. (2) In the welding component of this invention, the camera accurately identifies the position of the notch, and the motor drives the sliding plate to adjust the station. Before welding, the grinding wheel first grinds the notch to remove impurities and trim the edges. Solve the problems of false welding and porosity that are easy to occur in direct welding; Gear 1 synchronously drives slide rods 1 and 2 to move, and the grinding wheel automatically rotates to avoid the pre-treatment, and the laser welding gun accurately connects to the notch; (3) The side plate of this invention integrates welding and grinding components, and the casting is directly transferred to the grinding station after welding. Motor 5 drives the grinding machine to accurately grind the surface after welding, without the need to transfer equipment, avoiding secondary clamping errors; The electric cylinder drives the slot block to rotate through gear 2 and rack 5 to realize the automatic flipping of the casting, and the double-sided repair can be completed without manual intervention, simplifying the operation process and improving the consistency of double-sided repair. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 This is a schematic diagram of the front structure of the laser component of the present invention.

[0015] Figure 3 This is a schematic diagram of the back structure of the laser component of the present invention.

[0016] Figure 4 This is a schematic diagram of the structure of the torsion bar and limiting ring of the present invention in the event of an explosion.

[0017] Figure 5 This is a schematic diagram of the grinding component of the present invention.

[0018] Figure 6 This is a schematic diagram of the clamping block installation structure of the present invention.

[0019] Figure 7 This is a schematic diagram of the clamping block of the present invention.

[0020] Figure 8 This is a schematic diagram of the optical plate mounting structure of the present invention.

[0021] Figure 9 This is a schematic diagram of the long rod installation structure of the present invention.

[0022] Figure 10 This is a schematic diagram of the push plate and top plate of the present invention.

[0023] Reference numerals: 1-Frame; 2-Side plate; 3-Welding frame; 4-Slide plate; 5-Slide bar one; 6-Camera; 7-Laser welding gun; 8-Motor one; 9-Gear one; 10-Rack one; 11-Insert plate; 12-Slide bar two; 13-Rack two; 14-Rotating block; 15-Motor two; 16-Grinding wheel; 17-Rack three; 18-Rack four; 19-Torsion bar; 1901-Groove; 20-Limiting ring; 2001-Boss; 21-Lead screw one; 22-Motor three; 23-Main shaft; 24-Transmission mechanism; 25-Motor four; 26-Slider ; 27-Groove block; 28-Clamping block; 2801-Inclined surface one; 2802-Inclined surface two; 2803-Clamping groove; 29-Alloy casting; 30-Spring; 31-Gear two; 32-Rack five; 33-Electric cylinder; 34-Grinding frame; 35-Slide rod three; 36-Rack six; 37-Gear three; 38-Motor five; 39-Grinding machine; 40-Smooth plate; 4001-Waiting slot; 41-Storage cylinder; 42-Push plate; 4201-Arc groove; 43-Top plate; 44-Long rod; 45-Baffle one; 46-Baffle two; 47-Baffle rod; 48-Slide rail. Detailed Implementation

[0024] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0025] Example: Please refer to Figures 1 to 10 The present invention provides the following technical solution: a laser welding machine for repairing alloy castings, including a frame 1, a side plate 2 vertically arranged on the frame 1, a delivery component arranged in sequence on the frame 1, and a welding component and a grinding component arranged in sequence on the side plate 2.

[0026] The welding assembly includes a welding frame 3 vertically mounted on the side plate 2, a sliding plate 4 on the welding frame 3, a sliding rod 5 sliding vertically on the sliding plate 4, a camera 6 below the sliding rod 5, a laser welding gun 7 below the sliding rod 5 and next to the camera 6, a motor 8 above the sliding plate 4, a gear 9 on the rotating shaft of the motor 8, a rack 10 meshing with the gear 9 at the upper end of the sliding rod 5, an insert plate 11 in the middle of the sliding plate 4, the insert plate 11 passing through the welding frame 3, a sliding rod 12 vertically mounted at the end of the insert plate 11, and a rack 13 meshing with the gear 9 at the upper end of the sliding rod 12.

[0027] The bottom of the slide bar 2 12 is provided with a rotating block 14, the side of the rotating block 14 is provided with a motor 2 15, the rotating shaft of the motor 2 15 is provided with a grinding wheel 16, the rotating block 14 is provided with a rack 3 17, the side of the rack 3 17 is meshed with a rack 4 18, the rack 4 18 is fixedly provided at the bottom of the torsion bar 19, the torsion bar 19 is rotatably provided on the side of the slide bar 2 12, the insert plate 11 is provided with a limiting ring 20 for the torsion bar 19 to be inserted, the side wall of the torsion bar 19 is symmetrically provided with two grooves 1901, the grooves 1901 are composed of a straight segment 1, an oblique segment and a straight segment 2 from top to bottom, and the inner side wall of the limiting ring 20 is provided with a boss 2001 that is inserted into the groove 1901.

[0028] Specifically, in the initial state, the boss 2001 is inserted into the straight section two of the groove 1901, and the grinding wheel 16 is located below the laser welding gun 7. When the alloy casting 29 is located below the welding assembly, the camera 6 identifies the position of the notch on the alloy casting 29 and starts the motor 8 in the forward direction. The motor 8 drives the gear 9 to rotate in the forward direction, and transmits power through the rack 10 and rack 2 13, causing the slide bar 5 to rise and the slide bar 2 12 to fall. During the descent of the slide bar 2 12, the boss 2001 still slides in the straight section two of the groove 1901, that is, the grinding wheel 16 descends synchronously with the slide bar 2 12. When the grinding wheel 16 contacts the notch on the surface of the alloy casting 29, the motor 2 15 is started, and the motor 2 15 drives the grinding wheel 16 to rotate. The grinding wheel 16 grinds the notch of the alloy casting 29, which is beneficial for welding the notch. The reverse start motor 8 drives the gear 9 to rotate in the opposite direction, and transmits power again through rack 10 and rack 2 13, causing slide bar 5 to descend and slide bar 2 12 to rise. During the rise of slide bar 2 12, the boss 2001 transitions sequentially from the straight segment 2, the inclined segment and the straight segment 1 in the groove 1901. During this process, the torsion bar 19 rotates, and transmits power through rack 4 18 and rack 3 17, causing the rotating block 14 to rotate. The rotating block 14 drives the motor 2 15 and the grinding wheel 16 to rotate synchronously, making room for the descent of slide bar 5 and laser welding gun 7.

[0029] The slide plate 4 is slidably mounted on the welding frame 3 along the axial direction, and a lead screw 21 is rotatably mounted on the slide plate 4. The lead screw 21 forms a threaded engagement with the insert plate 11. The welding frame 3 is equipped with a motor 22, and the rotating shaft of the motor 22 is connected to the lead screw 21.

[0030] Specifically, camera 6 identifies the position of the notch on the alloy casting 29, starts motor 3 22, and motor 3 22 drives lead screw 1 21 to rotate, thereby driving slide plate 4 to slide along welding frame 3, so that laser welding gun 7 and grinding wheel 16 are aligned with the position of the notch on alloy casting 29.

[0031] The delivery assembly includes two main shafts 23, which are rotatably mounted at the head and tail of the frame 1, respectively. Two transmission mechanisms 24 are provided between the two main shafts 23, and the two transmission wheels of the transmission mechanism 24 are respectively mounted on the two main shafts 23. A motor 25 is provided on the frame 1, and the rotating shaft of the motor 25 is connected to one of the main shafts 23. Sliding blocks 26 are slidably mounted on the side of the transmission mechanism 24 on the frame 1, and the sliding blocks 26 are connected to the transmission belts of the corresponding transmission mechanism 24. A slot block 27 is rotatably mounted on the sliding block 26, and a clamping block 28 is slidably mounted on the slot block 27. A spring 30 is connected between the slot block 27 and the clamping block 28.

[0032] The clamping block 28 has a first inclined surface 2801 and a second inclined surface 2802 on both sides, and a clamping groove 2803 for clamping the alloy casting 29 is provided in the middle of the clamping block 28.

[0033] The transmission mechanism 24 consists of two transmission wheels and a conveyor belt. The conveyor belt is wound around the two transmission wheels. When one transmission wheel rotates, it drives the conveyor belt to rotate synchronously.

[0034] Specifically, motor 4 25 is started, which drives the main shaft 23 at the tail of frame 1 to rotate. The main shaft 23 drives the transmission belt of transmission mechanism 24 to rotate synchronously. The transmission belts of the two transmission mechanisms 24 drive the slider 26 to rotate synchronously. The alloy casting 29 is placed into the clamping grooves 2803 of the two clamping blocks 28. The spring 30 provides elastic force, causing the two clamping blocks 28 to move simultaneously towards the center of the alloy casting 29, thus clamping the alloy casting 29 tightly.

[0035] The rotating shaft of the slot block 27 passes through the slider 26, and a gear 2 31 is provided on the rotating shaft of the slot block 27. A rack 5 32 meshes above the gear 2 31. The rack 5 32 is connected to the telescopic shaft of the electric cylinder 33, and the electric cylinder 33 is fixedly mounted on the slider 26.

[0036] Specifically, the two electric cylinders 33 start simultaneously, driving the two racks 32 to move respectively. Power is transmitted through the gear 31, causing the slot block 27 and the clamping block 28 to rotate, thus enabling the alloy casting 29 to rotate and flip.

[0037] The grinding assembly includes a grinding frame 34 vertically mounted on the side plate 2. The grinding frame 34 has a slide bar 35 in the vertical direction. The upper part of the slide bar 35 has a rack 6 36. A gear 37 meshes with the side of the rack 6 36. The gear 37 is mounted on the rotating shaft of the motor 5 38. The motor 5 38 is fixedly mounted on the grinding frame 34. The bottom of the slide bar 35 has a grinding machine 39 for grinding the alloy casting 29.

[0038] Specifically, after the notch of the alloy casting 29 is welded, the alloy casting 29 moves to the bottom of the grinding assembly, and the motor 38 is started. The motor 38 drives the gear 37 to rotate, and transmits power through the rack 36, causing the slide bar 35 to move downward. The grinding wheel of the grinding machine 39 contacts the surface of the alloy casting 29, grinds the surface of the alloy casting 29, and smooths the welded point after welding.

[0039] The frame 1 has a smooth plate 40 at its head, and a waiting slot 4001 for placing the alloy casting 29 on the smooth plate 40. The frame 1 has a storage cylinder 41 for placing the alloy casting 29 on its top. A push plate 42 for pushing the alloy casting 29 is slidably provided on the smooth plate 40. The push plate 42 has an arc groove 4201 for holding the alloy casting 29. The push plate 42 has a top plate 43 for placing the alloy casting 29. Both ends of the push plate 42 have long rods 44 that are inserted into the corresponding sliders 26. The long rods 44 have a first baffle 45 and a second baffle 46.

[0040] The rear of the frame 1 is provided with a stop bar 47 for driving the inclined plane 2801, and the bottom of the rear of the frame 1 is provided with a slide 48 for receiving the alloy casting 29.

[0041] Specifically, the alloy casting 29 that needs to be repaired is placed in the silo 41, and the alloy casting 29 is placed in the waiting slot 4001. In its initial state, the top plate 43 is located below the silo 41, meaning the alloy casting 29 in the silo 41 is placed on the top plate 43. The forward start motor 25 causes the two sliders 26 to move towards the silo 41. After the sliders 26 contact the baffle 46, they push the baffle 46 and the long rod 44 towards the silo 41. The long rod 44 moves synchronously with the push plate 42, causing the push plate 42 to be misaligned from the silo 41. The alloy casting 29 in the silo 41 falls onto the bare plate 40. During this process, the inclined surface 2802 of the clamping block 28 contacts the alloy casting 29 in the waiting slot 4001, driving the two clamping blocks 28 to move outwards. The spring 30 is compressed. When the clamping slot 2803 overlaps with the alloy casting 29, the spring 30 provides elasticity, causing the two clamping blocks 28 to move towards the center. That is, the clamping slots 2803 of the two clamping blocks 28 clamp the alloy casting 29 in the waiting slot 4001. The reverse start motor 25 causes the two sliders 26 to move away from the bin 41. The two clamping blocks 28 hold the alloy casting 29 on the waiting slot 4001 and move synchronously. When the slider 26 contacts the baffle 45, the slider 26 pushes the baffle 45, the long rod 44 and the push plate 42 to move synchronously. The arc groove 4201 of the push plate 42 pushes the last alloy casting 29 in the bin 41 into the waiting slot 4001. When the inclined surface 2801 contacts the stop rod 47, the stop rod 47 pushes the clamping block 28 to move outward. Then the two clamping blocks 28 release the alloy casting 29, and the alloy casting 29 falls into the slide 48 and slides out to the outside. At this time, the arc groove 4201 of the push plate 42 pushes the alloy casting 29 into the waiting slot 4001.

[0042] Working principle: In the initial state, the boss 2001 is inserted into the straight section two of the groove 1901, at which time the grinding wheel 16 is located below the laser welding gun 7. At the same time, the top plate 43 is located below the bin 41, and the alloy casting 29 to be repaired is placed in the bin 41, that is, the alloy casting 29 in the bin 41 is placed on the top plate 43, and the alloy casting 29 is placed in the waiting slot 4001.

[0043] The forward start motor 25 drives the main shaft 23 to rotate forward, causing the two sliders 26 to move towards the bin 41. After the sliders 26 contact the baffle 46, they push the baffle 46 and the long rod 44 towards the bin 41. The long rod 44 moves the push plate 42 and the top plate 43 synchronously, causing the push plate 42 to be misaligned with the bin 41. The alloy casting 29 in the bin 41 falls onto the bare plate 40. During this process, the inclined surface 2802 of the clamping block 28 contacts the alloy casting 29 on the waiting slot 4001, driving the two clamping blocks 28 to move outward. The spring 30 is compressed. When the clamping slot 2803 overlaps with the alloy casting 29, the spring 30 provides elastic force, causing the two clamping blocks 28 to move towards the middle. That is, the clamping slots 2803 of the two clamping blocks 28 automatically clamp the alloy casting 29 on the waiting slot 4001.

[0044] The reverse start motor 25 causes the two sliders 26 to move away from the bin 41. The two clamping blocks 28 hold the alloy casting 29 on the waiting slot 4001 and move synchronously. When the alloy casting 29 passes the welding assembly, the camera 6 identifies the position of the notch on the alloy casting 29, shuts off the motor 25, stops the alloy casting 29 from moving, and starts the motor 22. The motor 22 drives the lead screw 21 to rotate, thereby driving the slide plate 4 to slide along the welding frame 3, so that the laser welding gun 7 and the grinding wheel 16 are aligned with the position of the notch on the alloy casting 29. Motor 8 is started in the forward direction, driving gear 9 to rotate in the forward direction. Power is transmitted through rack 10 and rack 13, causing slide bar 5 to rise and slide bar 12 to fall. During the descent of slide bar 12, boss 2001 still slides in the straight section 2 of groove 1901, that is, grinding wheel 16 descends synchronously with slide bar 12. When grinding wheel 16 contacts the notch on the surface of alloy casting 29, motor 15 is started, driving grinding wheel 16 to rotate. Grinding wheel 16 grinds the notch of alloy casting 29, which is beneficial for welding the notch. The reverse start motor 8 drives the gear 9 to rotate in the opposite direction, and transmits power again through rack 10 and rack 2 13, causing slide bar 5 to descend and slide bar 2 12 to rise. During the rise of slide bar 2 12, the boss 2001 transitions sequentially from the straight segment 2, the oblique segment and the straight segment 1 in the groove 1901. During this process, the torsion bar 19 rotates, and transmits power through rack 4 18 and rack 3 17, causing the rotating block 14 to rotate. The rotating block 14 drives the motor 2 15 and the grinding wheel 16 to rotate synchronously, making room for the laser welding gun 7 to descend. After the laser welding gun 7 is aligned with the gap in the alloy casting 29, it performs laser repair welding.

[0045] Restart motor 4 25 to move alloy casting 29 to below the grinding assembly. Start motor 5 38, which drives gear 3 37 to rotate. Power is transmitted through rack 6 36, causing slide bar 3 35 to move downward. The grinding wheel of grinding machine 39 contacts the surface of alloy casting 29, grinding the surface of alloy casting 29 and smoothing the welded points after welding.

[0046] The reverse rotation of motor 425 continues to move the alloy casting 29 further away from the bin 41. After the alloy casting 29 leaves the grinding assembly and before it contacts the baffle 45, the electric cylinder 33 is simultaneously activated, driving the two racks 532 to move. Power is transmitted through gear 231, causing the slot block 27 and clamping block 28 to rotate, thus allowing the alloy casting 29 to rotate and flip. The forward rotation of motor 425 moves the alloy casting 29 back to the welding assembly for repair welding. Then, the reverse rotation of motor 425 causes the grinding assembly to grind motor 425 again. Therefore, only one welding assembly and one grinding assembly are needed to weld and repair both sides of the alloy casting 29.

[0047] After both sides of the alloy casting 29 are repaired, the motor 4 25 continues to rotate in the opposite direction. After the slider 26 contacts the baffle 45, the slider 26 pushes the baffle 45, the long rod 44 and the push plate 42 to move synchronously. The arc groove 4201 of the push plate 42 pushes the last alloy casting 29 in the bin 41 into the waiting slot 4001. When the inclined surface 2801 contacts the stop rod 47, the stop rod 47 pushes the clamping block 28 to move outward. Then the two clamping blocks 28 release the alloy casting 29, and the repaired alloy casting 29 falls into the slide 48 and slides out to the outside. At this time, the arc groove 4201 of the push plate 42 pushes the alloy casting 29 into the waiting slot 4001.

[0048] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.

Claims

1. A laser welding machine for repairing alloy castings, comprising a frame (1), wherein side plates (2) are vertically provided on the frame (1), characterized in that: The frame (1) is provided with a delivery assembly in sequence, and the side plate (2) is provided with a welding assembly and a grinding assembly in sequence; The welding assembly includes a welding frame (3) vertically mounted on a side plate (2), a sliding plate (4) mounted on the welding frame (3), a sliding rod (5) mounted on the sliding plate (4) in a vertical direction, a camera (6) mounted below the sliding rod (5), a laser welding gun (7) mounted below the sliding rod (5) and next to the camera (6), a motor (8) mounted above the sliding plate (4), a gear (9) mounted on the rotating shaft of the motor (8), a rack (10) mounted at the upper end of the sliding rod (5) that meshes with the gear (9), an insert plate (11) mounted in the middle of the sliding plate (4), the insert plate (11) passing through the welding frame (3), a sliding rod (12) mounted at the end of the insert plate (11) in a vertical direction, and a rack (13) mounted at the upper end of the sliding rod (12) that meshes with the gear (9). The bottom of the slide bar 2 (12) is provided with a rotating block (14), the side of the rotating block (14) is provided with a motor 2 (15), the rotating shaft of the motor 2 (15) is provided with a grinding wheel (16), the rotating block (14) is provided with a rack 3 (17), the side of the rack 3 (17) is meshed with a rack 4 (18), the rack 4 (18) is fixedly provided at the bottom of the torsion bar (19), the torsion bar (19) is rotatably provided on the side of the slide bar 2 (12), the insert plate (11) is provided with a limiting ring (20) for the torsion bar (19) to be inserted, the side wall of the torsion bar (19) is symmetrically provided with two grooves (1901), the grooves (1901) are composed of a straight line segment 1, an oblique line segment and a straight line segment 2 from top to bottom, and the inner side wall of the limiting ring (20) is provided with a boss (2001) that is inserted into the groove (1901).

2. The laser welding machine for repairing alloy castings according to claim 1, characterized in that: The slide plate (4) is slidably mounted on the welding frame (3) along the axial direction, and a lead screw (21) is rotatably mounted on the slide plate (4). The lead screw (21) and the insert plate (11) form a threaded engagement. The welding frame (3) is equipped with a motor (22), and the rotating shaft of the motor (22) is connected to the lead screw (21).

3. The laser welding machine for repairing alloy castings according to claim 2, characterized in that: The delivery assembly includes two main shafts (23), which are rotatably mounted at the head and tail of the frame (1), respectively. Two transmission mechanisms (24) are provided between the two main shafts (23), and the two transmission wheels of the transmission mechanism (24) are respectively mounted on the two main shafts (23). A motor four (25) is provided on the frame (1), and the rotating shaft of the motor four (25) is connected to one of the main shafts (23). A slider (26) is slidably mounted on the side of the transmission mechanism (24) on the frame (1), and the slider (26) is connected to the transmission belt of the corresponding transmission mechanism (24). A slot block (27) is rotatably mounted on the slider (26), and a clamping block (28) is slidably mounted on the slot block (27). An alloy casting (29) is connected between the slot block (27) and the clamping block (28).

4. The laser welding machine for repairing alloy castings according to claim 3, characterized in that: The clamping block (28) has a first inclined surface (2801) and a second inclined surface (2802) on both sides, and a clamping groove (2803) for clamping the alloy casting (29) is provided in the middle of the clamping block (28).

5. A laser welding machine for repairing alloy castings according to claim 4, characterized in that: The rotating shaft of the groove block (27) passes through the slider (26), and a gear two (31) is provided on the rotating shaft of the groove block (27). A rack five (32) meshes above the gear two (31). The rack five (32) is connected to the telescopic shaft of the electric cylinder (33), and the electric cylinder (33) is fixedly mounted on the slider (26).

6. The laser welding machine for repairing alloy castings according to claim 5, characterized in that: The grinding assembly includes a grinding frame (34) vertically mounted on the side plate (2). The grinding frame (34) has a slide bar (35) in the vertical direction. The upper part of the slide bar (35) has a rack (36). The side of the rack (36) is meshed with a gear (37). The gear (37) is mounted on the rotating shaft of the motor (38). The motor (38) is fixedly mounted on the grinding frame (34). The bottom of the slide bar (35) is equipped with a grinding machine (39) for grinding the alloy casting (29).

7. A laser welding machine for repairing alloy castings according to claim 6, characterized in that: The frame (1) has a smooth plate (40) at the head, and a waiting slot (4001) for placing the alloy casting (29) is provided on the smooth plate (40). The frame (1) has a bin (41) for placing the alloy casting (29) above it. A push plate (42) for pushing the alloy casting (29) is slidably provided on the smooth plate (40). An arc groove (4201) for holding the alloy casting (29) is provided on the push plate (42). A top plate (43) for placing the alloy casting (29) is provided on the push plate (42). Long rods (44) for inserting into the corresponding sliders (26) are provided at both ends of the push plate (42). A baffle (45) and a baffle (46) are provided on the long rods (44).

8. A laser welding machine for repairing alloy castings according to claim 7, characterized in that: The rear of the frame (1) is provided with a stop bar (47) for driving the inclined plane (2801), and the bottom of the rear of the frame (1) is provided with a slide (48) for receiving the alloy casting (29).

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