Laser cladding head component with adjustable cladding trajectory

Abstract

The present invention provides a laser cladding head component with adjustable cladding trajectory, which mainly relates to the technical field of laser welding cladding machines. A laser cladding head component with adjustable cladding trajectory includes a base and a laser welding head. A lifting assembly is fixedly arranged on the base, a first fixed rod is fixedly arranged in an array on the lifting assembly, a first driving assembly and a supporting plate are fixedly arranged on the first fixed rod, a second driving assembly is fixedly arranged on the supporting plate, a mounting seat is fixedly arranged on the outer side of the laser welding head, the first driving assembly is transmission-connected to the top of the mounting seat, and the second driving assembly is transmission-connected to the bottom of the mounting seat. The beneficial effects of the present invention are: the distance between the laser welding head and the workpiece is adjusted by controlling the lifting assembly; the second driving assembly drives the laser welding head to perform pendulum motion through the crank rocker principle, and the motion trajectory of the laser welding head is an inner arc; the first driving motor cooperates with the second driving assembly to make the entire mounting seat perform arc motion, and the motion trajectory of the laser welding head is an outer arc.

Description

Technical Field

[0001] The invention mainly relates to the technical field of laser welding cladding machines, and in particular to a laser cladding head component with adjustable cladding trajectory. Background Art

[0002] Laser cladding, also known as laser melting or laser cladding, is a new surface modification technology. It forms a metallurgically bonded additive cladding layer on the surface of the base by adding cladding material to the surface of the substrate and using a high-energy-density laser beam to melt it together with a thin layer on the surface of the substrate. Compared with traditional repair technologies, the products after laser cladding have strong corrosion resistance. Laser cladding can form a uniform and dense metal coating on the surface of the substrate, avoiding the generation of pore cracks. Laser cladding has strong bonding strength, the laser cladding layer is very compact, the heat-affected zone is very small, and there will be no deformation after welding, which fundamentally eliminates the peeling phenomenon caused by weak bonding strength.

[0003] The laser cutting heads of existing laser cladding equipment are mostly placed directly on the gantry device. The laser emission angle is fixed, and the application range of the laser element is extremely small. The laser head with a fixed angle is difficult to perform its work task during the process of adding curved workpieces, resulting in a limited processing range of the workpiece. Summary of the invention

[0004] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0005] A laser cladding head component with an adjustable cladding trajectory comprises a base and a laser welding head, wherein a lifting assembly is fixedly arranged on the base, a first fixing rod is fixedly arranged in an array on the lifting assembly, a first driving assembly and a supporting plate are fixedly arranged on the first fixing rod, a second driving assembly is fixedly arranged on the supporting plate, a mounting seat is fixedly arranged on the outer side of the laser welding head, the first driving assembly is transmission-connected to the top end of the mounting seat, the second driving assembly is transmission-connected to the bottom end of the mounting seat, and the laser welding head is driven to move by the first driving assembly and the second driving assembly.

[0006] The base is arranged in an L shape, and two support seats are fixedly arranged at the rear of the base. A through slot is opened on the base. The lifting assembly includes a screw rod, a mounting plate, and a guide rail. The screw rod is rotatably connected to the two support seats and a hand wheel is fixedly arranged on the top. The guide rails are symmetrically fixed at the front of the base, and sliders are symmetrically fixed at the rear of the mounting plate. The sliders are slidably connected to the guide rails. A protrusion is fixedly arranged in the middle position at the rear of the mounting plate, and the protrusion passes through the through slot and is threadedly connected to the screw rod.

[0007] The front of the mounting seat is fixedly connected to the laser welding head, the rear of the mounting seat is provided with a groove, the inner array of the groove is provided with positioning holes, and the mounting seat is provided with a sliding groove.

[0008] The first driving assembly includes an arc-shaped plate, a first driving motor, and a support rod. A second fixed rod is symmetrically fixed on the top of the support plate, the first driving motor is fixed on the second fixed rod, a gear is fixed on the output end of the first driving motor, a gear ring is slidably set on the top of the arc-shaped plate, the inner ring of the gear ring is connected to the outer ring of the arc-shaped plate by concave-convex matching, and the gear ring is meshingly connected to the gear.

[0009] An arc-shaped groove is opened on the arc plate, a connecting block is fixedly arranged on the side of the gear ring, a sliding rod is fixedly arranged on the connecting block, the sliding rod passes through the arc groove and is rotatably connected to the top of the mounting seat, the support rod is symmetrically fixed on both sides of the arc plate, and the other end of the support rod is fixedly connected to the side of the supporting plate.

[0010] The second driving assembly includes a second driving motor, a driving plate, and a driving rod. The second driving motor is fixedly arranged on the first fixed rod. The driving plate is fixedly arranged on the output end of the second driving motor. The other end of the driving plate is rotatably connected to the driving rod. The other end of the driving rod is matched with a connecting assembly.

[0011] The connecting assembly includes a guide rod, a positioning plate, and a nut. The end of the guide rod is rotatably connected to the driving rod and a stop block is fixedly arranged at the other end. The stop block abuts against the front of the mounting seat, the positioning plate abuts against the groove, and the positioning blocks are symmetrically fixed on the positioning plate. The positioning blocks abut against the positioning holes. The positioning plate is sleeved on the outer ring of the guide rod, and the nut is threadedly connected to the guide rod and abuts against the positioning plate.

[0012] There are three first fixing rods and they are distributed in an L shape. The support plate is arranged in an L shape. Three sleeves are fixedly arranged at the bottom of the support plate. The sleeves are sleeved on the outer rings of the corresponding first fixing rods and fixed by bolts.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The present invention adjusts the height of the mounting plate by controlling the lifting assembly, thereby adjusting the distance between the laser welding head and the workpiece, thereby meeting the laser welding requirements of the workpiece.

[0015] 2. When the top of the mounting seat is located at the center of the arc plate and remains fixed, the second driving assembly drives the laser welding head to perform pendulum motion through the crank rocker principle, so that the motion trajectory of the laser welding head is an inner arc.

[0016] 3. The first drive motor drives the top of the mounting seat to swing back and forth along the arc plate through the meshing connection, and cooperates with the second drive component to make the entire mounting seat move in an arc, so that the motion trajectory of the laser welding head is an outer arc.

[0017] 4. Insert the positioning block on the positioning plate into the appropriate positioning hole, and control the output shaft speed of the first drive motor to determine the gear ring meshing speed, so that the laser welding head can adapt to the different curvatures of the workpiece, ensuring that the laser cladding head can effectively coat the paint on the outer wall of the workpiece. By using one set of equipment to complete two motion rails, work efficiency is improved and equipment costs are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attached Figure 1 It is a schematic diagram of the structure of the present invention from a first viewing angle;

[0019] Attached Figure 2 is a schematic diagram of the structure of the present invention from a second viewing angle;

[0020] Attached Figure 3 It is a schematic diagram of the structure from a third viewing angle of the present invention;

[0021] Attached Figure 4 It is a schematic diagram of the first decomposition structure of the present invention;

[0022] Attached Figure 5 It is a schematic diagram of the second decomposition structure of the present invention;

[0023] Attached Figure 6 It is a schematic diagram of the structure of the mounting seat and the connecting assembly of the present invention;

[0024] Attached Figure 7 It is a schematic diagram of the third decomposition structure of the present invention.

[0025] Numbers shown in the accompanying drawings: 1, base; 101, support seat; 2, laser welding head; 3, lifting assembly; 301, screw rod; 302, mounting plate; 303, guide rail; 304, hand wheel; 4, first fixed rod; 5, first driving assembly; 501, arc plate; 502, first driving motor; 503, support rod; 504, gear ring; 505, connecting block; 506, sliding rod; 6, second driving assembly; 601, second driving motor; 602, driving plate; 603, driving rod; 7, mounting seat; 701, groove; 702, positioning hole; 8, connecting assembly; 801, guide rod; 802, positioning plate; 803, nut; 804, stopper; 805, positioning block; 9, supporting plate; 901, second fixed rod; 902, sleeve. DETAILED DESCRIPTION

[0026] The present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope limited by the application.

[0027] In conjunction with the accompanying drawings, a laser cladding head component with an adjustable cladding trajectory includes a base 1 and a laser welding head 2. A lifting assembly 3 is fixedly arranged on the base 1, and a first fixed rod 4 is fixedly arranged in an array on the lifting assembly 3. A first driving assembly 5 and a supporting plate 9 are fixedly arranged on the first fixed rod 4, and a second driving assembly 6 is fixedly arranged on the supporting plate 9. A mounting seat 7 is fixedly arranged on the outer side of the laser welding head 2, and the first driving assembly 5 is transmission-connected to the top of the mounting seat 7, and the second driving assembly 6 is transmission-connected to the bottom of the mounting seat 7, and the laser welding head 2 is driven to move by the first driving assembly 5 and the second driving assembly 6.

[0028] The base 1 is arranged in an L shape, and two support seats 101 are fixedly arranged at the back of the base 1. A through groove is opened on the base 1. The lifting component 3 includes a screw rod 301, a mounting plate 302, and a guide rail 303. The screw rod 301 is rotatably connected to the two support seats 101 and a hand wheel 304 is fixedly arranged on the top. The guide rails 303 are symmetrically fixedly arranged in front of the base 1, and sliders are symmetrically fixedly arranged at the back of the mounting plate 302. The sliders are slidably connected to the guide rails 303. A protrusion is fixedly arranged in the middle position at the back of the mounting plate 302. The protrusion passes through the through groove and is threadedly connected to the screw rod 301. The height of the laser welding head 2 can be adjusted through this structural design.

[0029] The front of the mounting seat 7 is fixedly connected to the laser welding head 2 , the rear of the mounting seat 7 is provided with a groove 701 , the inner array of the groove 701 is provided with positioning holes 702 , and the mounting seat 7 is provided with a sliding groove.

[0030] The first driving assembly 5 includes an arc plate 501, a first driving motor 502, and a support rod 503. The second fixed rod 901 is symmetrically fixed on the top of the supporting plate 9. The first driving motor 502 is fixed on the second fixed rod 901. A gear is fixed on the output end of the first driving motor 502. A gear ring 504 is slidably set on the top of the arc plate 501. The inner ring of the gear ring 504 is connected to the outer ring of the arc plate 501 through a concave-convex fit. The gear ring 504 is meshed with the gear. This structural design drives the gear ring 504 to swing back and forth.

[0031] An arc groove is provided on the arc plate 501, a connecting block 505 is fixedly provided on the side of the gear ring 504, a sliding rod 506 is fixedly provided on the connecting block 505, the sliding rod 506 passes through the arc groove and is rotatably connected to the top of the mounting seat 7, the sliding rod 506 is connected to the mounting seat 7 through a bearing, the gear ring 504 swings back and forth, thereby driving the top of the mounting seat 7 to swing along the arc groove, the support rod 503 is symmetrically fixedly provided on both sides of the arc plate 501, and the other end of the support rod 503 is fixedly connected to the side of the supporting plate 9, and the arc plate 501 is supported and fixed by this structural design.

[0032] The second driving component 6 includes a second driving motor 601, a driving plate 602, and a driving rod 603. The second driving motor 601 is fixedly set on the first fixing rod 4, and the driving plate 602 is fixedly set on the output end of the second driving motor 601. The other end of the driving plate 602 is rotatably connected to the driving rod 603. Through this structural design, the second driving motor 601 drives the driving plate 602 to perform circular motion, and then drives the bottom of the mounting seat 7 to swing in an arc. The other end of the driving rod 603 is matched with a connecting component 8.

[0033] The connecting assembly 8 includes a guide rod 801, a positioning plate 802, and a nut 803. The end of the guide rod 801 is rotatably connected to the driving rod 603 and a stop block 804 is fixedly arranged at the other end. The stop block 804 abuts against the front of the mounting seat 7. The positioning plate 802 abuts against the groove 701. Positioning blocks 805 are symmetrically fixedly arranged on the positioning plate 802. The positioning blocks 805 abut against the positioning holes 702. The positioning plate 802 is sleeved on the outer ring of the guide rod 801. The nut 803 is threadedly connected to the guide rod 801 and abuts against the positioning plate 802. The positioning blocks 805 are inserted into the positioning holes 702 at different heights to adjust the swing amplitude of the mounting seat 7.

[0034] The first fixing rods 4 are provided with three and are distributed in an L shape, the supporting plate 9 is provided in an L shape, and three sleeves 902 are fixedly provided at the bottom of the supporting plate 9. The sleeves 902 are sleeved on the outer circles of the corresponding first fixing rods 4 and fixed by bolts.

[0035] The present solution also includes a controller, which controls the start and stop of the first drive motor 502 and the second drive motor 601. The position of the controller is set by the staff according to the actual situation during operation. The controller is used to control the electrical devices used in the present solution, including but not limited to sensors, motors, telescopic rods, water pumps, solenoid valves, heating wires, heat pumps, display screens, computer input devices, switch buttons, communication equipment, lights, speakers and microphones; the controller is an Intel processor, an AMD processor, a PLC controller, an ARM processor or a single-chip microcomputer, and the supporting motherboard, memory stick, storage medium and power supply are also used therewith, and the power supply is AC or lithium battery; when a display screen is provided, a display card is also provided; for the operating principle of the controller, please refer to "Principles of Automatic Control", "Principles of Microcontrollers and Application Simulation Cases" and "Principles and Applications of Sensors" published by Tsinghua University Press, and other books in the field can be read for reference; other automatic controls and electrical devices not mentioned are all knowledge well known to those skilled in the art and will not be repeated here.

[0036] When the device is in use, the base 1 is fixed on the external laser welding equipment, the hand wheel 304 is turned to drive the screw 301 to rotate and adjust the mounting plate 302 to a suitable height, the workpiece is placed directly below the laser welding head 2, the positioning block 805 is inserted into the appropriate positioning hole 702 according to the curvature of the workpiece, and the nut 803 is tightened to fix the positioning plate 802 and the mounting seat 7;

[0037] When cladding welding is performed on the convex surface of the arc-shaped workpiece: the controller controls the main shaft of the first drive motor 502 to rotate forward and reverse, drives the gear ring 504 to swing back and forth through gear meshing, and then drives the slide bar 506 to swing back and forth, so that the top end of the mounting seat 7 swings back and forth; at the same time, the main shaft of the second drive motor 601 is controlled to rotate, drives the drive plate 602 to move in a circle, and then drives the drive rod 603 to swing, so that the bottom end of the mounting seat 7 swings back and forth, and finally the laser welding head 2 performs cladding welding along the curvature of the workpiece surface;

[0038] When performing cladding welding on the concave surface of the arc-shaped workpiece: the controller controls the first drive motor 502 to reset, and drives the slide rod 506 to move to the middle position of the arc plate 501 through gear meshing, so that the top of the mounting seat 7 remains fixed, and controls the second drive motor 601 to drive the mounting seat 7 to perform pendulum motion, so that the laser welding head 2 fits the concave surface of the arc-shaped workpiece to achieve precise cladding welding.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A laser cladding head component with adjustable cladding trajectory, comprising a base (1) and a laser welding head (2), characterized in that: A lifting assembly (3) is fixedly arranged on the base (1), a first fixing rod (4) is fixedly arranged in an array on the lifting assembly (3), a first driving assembly (5) and a supporting plate (9) are fixedly arranged on the first fixing rod (4), a second driving assembly (6) is fixedly arranged on the supporting plate (9), a mounting seat (7) is fixedly arranged on the outer side of the laser welding head (2), the first driving assembly (5) is transmission-connected to the top of the mounting seat (7), the second driving assembly (6) is transmission-connected to the bottom of the mounting seat (7), and the laser welding head (2) is driven to move by the first driving assembly (5) and the second driving assembly (6); The first driving assembly (5) comprises an arc-shaped plate (501), a first driving motor (502), and a supporting rod (503); a second fixing rod (901) is symmetrically fixedly arranged on the top of the supporting plate (9); the first driving motor (502) is fixedly arranged on the second fixing rod (901); a gear is fixedly arranged at the output end of the first driving motor (502); a gear ring (504) is slidably arranged on the top of the arc-shaped plate (501); an inner ring of the gear ring (504) is connected to an outer ring of the arc-shaped plate (501) by concave-convex matching; and the gear ring (504) is meshingly connected to the gear; An arc-shaped groove is provided on the arc-shaped plate (501), a connecting block (505) is fixedly provided on the side of the gear ring (504), a sliding rod (506) is fixedly provided on the connecting block (505), the sliding rod (506) passes through the arc-shaped groove and is rotatably connected to the top of the mounting seat (7), the support rod (503) is symmetrically fixedly provided on both sides of the arc-shaped plate (501), and the other end of the support rod (503) is fixedly connected to the side of the supporting plate (9); The second driving assembly (6) comprises a second driving motor (601), a driving plate (602), and a driving rod (603); the second driving motor (601) is fixedly arranged on the first fixing rod (4); the driving plate (602) is fixedly arranged on the output end of the second driving motor (601); the other end of the driving plate (602) is rotatably connected to the driving rod (603); and the other end of the driving rod (603) is cooperatively arranged with a connecting assembly (8).

2. The laser cladding head component with adjustable cladding trajectory according to claim 1, characterized in that: The base (1) is arranged in an L-shape, two support seats (101) are fixedly arranged at the rear of the base (1), a through slot is provided on the base (1), the lifting assembly (3) comprises a screw rod (301), a mounting plate (302), and a guide rail (303), the screw rod (301) is rotatably connected to the two support seats (101) and a hand wheel (304) is fixedly arranged on the top, the guide rail (303) is symmetrically fixedly arranged at the front of the base (1), the sliding block is symmetrically fixedly arranged at the rear of the mounting plate (302), the sliding block is slidably connected to the guide rail (303), a convex block is fixedly arranged at the middle position of the rear of the mounting plate (302), and the convex block passes through the through slot and is threadedly connected to the screw rod (301).

3. The laser cladding head component with adjustable cladding trajectory according to claim 1, characterized in that: The front of the mounting seat (7) is fixedly connected to the laser welding head (2), the rear of the mounting seat (7) is provided with a groove (701), the interior of the groove (701) is provided with an array of positioning holes (702), and the mounting seat (7) is provided with a sliding groove.

4. The laser cladding head component with adjustable cladding trajectory according to claim 1, characterized in that: The connecting assembly (8) comprises a guide rod (801), a positioning plate (802), and a nut (803); the end of the guide rod (801) is rotatably connected to the driving rod (603) and a stopper (804) is fixedly arranged at the other end; the stopper (804) abuts against the front of the mounting seat (7); the positioning plate (802) abuts against the groove (701); a positioning block (805) is symmetrically fixedly arranged on the positioning plate (802); the positioning block (805) abuts against the positioning hole (702); the positioning plate (802) is sleeved on the outer ring of the guide rod (801); and the nut (803) is threadedly connected to the guide rod (801) and abuts against the positioning plate (802).

5. The laser cladding head component with adjustable cladding trajectory according to claim 1, characterized in that: The first fixing rods (4) are provided in three numbers and are distributed in an L shape. The supporting plate (9) is provided in an L shape. Three sleeves (902) are fixedly provided at the bottom of the supporting plate (9). The sleeves (902) are sleeved on the outer rings of the corresponding first fixing rods (4) and fixed by bolts.

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