Multi-angle magnetic field loading device for laser cladding

Abstract

The utility model relates to the technical field of laser cladding, in particular to a multi-angle magnetic field loading device for laser cladding, which comprises a support, one end of the support is connected with an annular track, a magnetic field S pole and a magnetic field N pole are arranged on the annular track, the other end of the support is connected with a support, a sleeve seat is mounted in the support, and the magnetic field S pole and the magnetic field N pole are arranged on the sleeve seat. A laser head is arranged in the sleeve seat and located on the circle center of the annular track, the magnetic field S pole and the magnetic field N pole surround the peripheral circumference of the laser head, assembling holes connected to a mechanical arm are formed in the two sides of the support, the laser head aims at a cladding material to provide light beam high energy, and the cladding material is fixed through the auxiliary effect of a transverse magnetic field. And at the moment, the generated transverse magnetic field uniformly acts on the molten pool and the cladding material, the quality of the cladding material attached to the molten pool is improved in cooperation with a laser head, and the appearance quality of the coated surface of the base body is further improved.

Description

Technical Field

[0001] This utility model relates to the field of laser cladding technology, and in particular to a multi-angle magnetic field loading device for laser cladding. Background Technology

[0002] Laser cladding refers to the process of using a laser as a high-energy melting heat source and powder or wire as a filler material to form a molten pool on a substrate through high-energy laser melting. Simultaneously, the powder or wire (molten material) is adhered within the molten pool (coating), thereby altering the properties of the substrate. As a new generation of surface modification technology, laser cladding has become a focus in the manufacturing industry due to its pollution-free nature and the ability to produce a cladding layer with excellent metallurgical bonding to the substrate. To improve cladding quality, a magnetic field is often placed near the laser to drive the molten material, intensifying liquid metal convection and promoting heat and mass transfer within the molten pool, thus improving defects such as cracks and porosity in the cladding layer.

[0003] In existing technologies for magnetic field assistance in laser cladding, either a longitudinal magnetic field is applied relative to the substrate by hanging a coaxial cable, or a transverse magnetic field is applied. The angle between the two magnetic poles cannot change, and the magnetic field cannot be switched between the longitudinal and transverse magnetic fields. The magnetic field generation of the two magnetic poles is not very flexible. Summary of the Invention

[0004] To address the aforementioned problems, this utility model provides a multi-angle magnetic field loading device for laser cladding, comprising a bracket, one end of which is connected to an annular track, on which magnetic field S pole and magnetic field N pole are provided, and the other end of the bracket is connected to a support, in which a sleeve is installed, and a laser head is provided within the sleeve. The laser head is located at the center of the annular track, and the magnetic field S pole and the magnetic field N pole surround the outer circumference of the laser head, forming a magnetic field relative to the laser head. The bracket has mounting holes on both sides for connection to a robotic arm.

[0005] As a further preferred embodiment, a toothed ring is connected within the annular track, the S pole and the N pole of the magnetic field are mounted on the toothed ring, a motor is mounted on the bracket, and a gear meshing with the toothed ring is mounted on the motor's actuating shaft. The toothed ring, carrying the S pole and the N pole of the magnetic field, rotates around the periphery of the laser head.

[0006] As a further preferred embodiment, the bracket has symmetrical connecting parts on both sides, and the two connecting parts have symmetrical assembly holes.

[0007] As a further preferred embodiment, a connecting frame is fixed on the support, an electric cylinder is mounted on the connecting frame, and one end of the laser head is connected to the actuating rod of the electric cylinder through the sleeve.

[0008] As a further preferred embodiment, two bent rods are fixed on the toothed ring. The two bent rods enter the annular track from one end of the annular track and then bend to the other end of the annular track. The S pole and N pole of the magnetic field are installed on the other end of the two bent rods and away from the laser head.

[0009] The advantages of this utility model compared to the prior art are:

[0010] A circular track is set up, with the S and N poles of the magnetic field installed inside. Their angles are adjustable via a gear ring and gear meshing. The laser head is telescopically positioned between the S and N poles. When cladding material on a planar substrate, the substrate is located below the S and N poles. The transverse magnetic field is close to both sides of the substrate surface, while the cladding material lies on the substrate surface. The S and N poles are located on either side of the cladding material. According to the principle of magnetic field formation, a transverse magnetic field will be formed on both sides of the cladding material. Simultaneously, the laser head, driven by an electric cylinder, approaches the substrate surface and faces the cladding material. The laser head provides a high-energy beam to the cladding material, and combined with the auxiliary effect of the transverse magnetic field, the influence on the molten pool becomes more significant. The resulting transverse magnetic field acts uniformly on the molten pool and the cladding material, improving the quality of the cladding material adhering to the molten pool, and further enhancing the appearance quality of the coating on the substrate surface. Attached Figure Description

[0011] Figure 1 A schematic diagram from a first-view perspective of a multi-angle magnetic field loading device for laser cladding provided for an embodiment of this utility model;

[0012] Figure 2 A schematic diagram from a second perspective of a multi-angle magnetic field loading device for laser cladding provided for an embodiment of this utility model;

[0013] Figure 3 A schematic diagram from a third-angle perspective of a multi-angle magnetic field loading device for laser cladding provided for an embodiment of this utility model;

[0014] Figure 4 A schematic diagram of the transverse magnetic field of a multi-angle magnetic field loading device for laser cladding provided for an embodiment of this utility model;

[0015] Figure 5 A schematic diagram of the longitudinal magnetic field of a multi-angle magnetic field loading device for laser cladding provided for an embodiment of this utility model;

[0016] Figure 6 This is a schematic diagram of a multi-angle magnetic field loading device for laser cladding combined with a robotic arm, as provided in this embodiment of the utility model.

[0017] In the diagram: 1. Bracket; 2. Circular track; 3. S pole of magnetic field; 4. N pole of magnetic field; 5. Support; 6. Sleeve; 7. Laser head; 8. Assembly hole; 9. Gear ring; 10. Motor; 11. Gear; 12. Connecting frame; 13. Electric cylinder; 14. Connecting part; 15. Bending rod. Detailed Implementation

[0018] The above and other embodiments and advantages of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0019] In one implementation, such as Figures 1-6 As shown:

[0020] This embodiment provides a multi-angle magnetic field loading device for laser cladding, including a bracket 1. One end of the bracket 1 is connected to an annular track 2, on which a magnetic field S pole 3 and a magnetic field N pole 4 are provided. The other end of the bracket 1 is connected to a support 5, in which a sleeve 6 is installed. A laser head 7 is provided in the sleeve 6. The laser head 7 is located at the center of the annular track 2. The magnetic field S pole 3 and the magnetic field N pole 4 surround the outer circumference of the laser head 7 and form a magnetic field relative to the laser head 7. The bracket 1 has mounting holes 8 on both sides for connecting to a robotic arm. The bracket 1 also has symmetrical connecting parts 14 on both sides, with symmetrical mounting holes 8 on the two connecting parts 14.

[0021] A toothed ring 9 is connected inside the annular track 2. The magnetic field S pole 3 and magnetic field N pole 4 are mounted on the toothed ring 9. A motor 10 is mounted on the bracket 1. A gear 11 meshes with the toothed ring 9 on the actuating shaft of the motor 10. The toothed ring 9 rotates around the laser head 7 with the magnetic field S pole 3 and magnetic field N pole 4. The magnetic field S pole 3 and magnetic field N pole 4 are not fixed in position, but can change angle under the drive of the motor 10. That is, the magnetic field generated by the magnetic field S pole 3 and magnetic field N pole 4 can change angle.

[0022] A connecting frame 12 is fixed on the support 5, and an electric cylinder 13 is installed on the connecting frame 12. One end of the laser head 7 is connected to the actuating rod of the electric cylinder 13 via a sleeve 6. The laser head 7 can extend and retract relative to the magnetic field S pole 3 and magnetic field N pole 4, that is, the laser head 7 can extend and retract relative to the position of the magnetic field generated by the magnetic field S pole 3 and magnetic field N pole 4. During the cladding operation on the substrate surface, the magnetic field S pole 3 and magnetic field N pole 4 are close to the substrate surface. The laser head 7 moves relative to the magnetic field S pole 3 and magnetic field N pole 4. At the same time, the cladding material is placed on the substrate surface in advance. The magnetic field generated between the magnetic field S pole 3 and magnetic field N pole 4 acts together on the cladding material and the substrate surface. While the laser head 7 moves relative to the magnetic field, it applies high-light power to the cladding material and the substrate surface, which increases the movement space of the laser head 7, improves the appearance of the molten pool on the substrate, and further improves the adhesion of the cladding material to the substrate molten pool under the assistance of the magnetic field for a slightly longer period of time.

[0023] Two bent rods 15 are fixed on the toothed ring 9. The two bent rods 15 enter the ring track 2 from one end of the ring track 2 and bend back to the other end of the ring track 2. The magnetic field S pole 3 and magnetic field N pole 4 are installed on the other end of the two bent rods 15 and away from the laser head 7, making the laser head 7 more flexible to use.

[0024] like Figure 6 As shown, in actual use, the robotic arm is mounted on the connecting parts 14 on both sides of the bracket 1 through the assembly hole 8. The S pole 3 and N pole 4 of the magnetic field are connected to AC power to provide a magnetic field for the working position of the laser head 7. The magnetic field is better reflected in this invention, primarily in the transverse magnetic field. When the cladding surface of the substrate is planar, as shown... Figure 4As shown, the S pole 3 and N pole 4 of the magnetic field are used laterally under the action of the robotic arm. At this time, the S pole 3 and N pole 4 are in a lateral environment, and the magnetic field generated between the S pole 3 and N pole 4 is a lateral magnetic field. The substrate is located below the S pole 3 and N pole 4, and the lateral magnetic field is close to both sides of the substrate surface. The cladding material is located on the substrate surface, and the S pole 3 and N pole 4 are located on both sides of the cladding material. According to the principle of magnetic field formation, the lateral magnetic field will be formed on both sides of the cladding material. At the same time, the laser head 7 is pushed by the electric cylinder 13 to approach the substrate surface and face the cladding material. The laser head 7 provides a high-energy beam to the cladding material, and with the assistance of the lateral magnetic field, the influence of the molten pool is more significant, and the coating performance of the cladding material in the molten pool is further improved. The control, for example, involves the cladding material acting as a conductor being affected by Lorentz force in a magnetic field, thereby changing the flow pattern of the molten pool. The magnetic field can also stabilize the flow of the molten pool, reduce porosity and spatter. After the cladding material adheres to the molten pool, it improves the surface smoothness of the substrate and can also better change the mechanical properties of the substrate, increasing its hardness to 5% to 15% (grain boundary strengthening). At the same time, it improves the wear resistance of the substrate. The starting motor 10 drives the gear 11 to rotate, and the gear 11 meshes with the gear ring 9 to rotate. The gear ring 9 carries the magnetic field S pole 3 and magnetic field N pole 4 to rotate around the molten pool and the cladding material, so that the transverse magnetic field acts uniformly on the molten pool and the cladding material. In conjunction with the laser head 7, it improves the quality of the cladding material after it adheres to the molten pool, and the appearance quality of the substrate surface after coating is further improved.

[0025] Secondly, it is reflected in the longitudinal magnetic field, such as Figure 3 , Figure 5 As shown, if the cladding surface of the substrate is arc-shaped or circular, such as a rod or tube substrate, the cladding material is first coated on the outer circular surface of the substrate using the aforementioned transverse magnetic field-assisted method. This will form multiple cladding zones on the outer circular surface. Due to the characteristics of the substrate being a rod or tube, these cladding zones will be distributed on the outer circle, and the connection between the cladding zones will not be uniform. At this time, the S pole 3 and N pole 4 of the magnetic field are rotated to the longitudinal direction under the drive of the robot arm. The substrate is then inserted transversely between the S pole 3 and N pole 4 of the magnetic field. The motor 10 is started to drive the gear 11 to rotate. The gear 11 meshes with the gear ring 9 to rotate. The gear ring 9 carries the S pole 3 and N pole 4 of the magnetic field to rotate around the substrate, forming a longitudinal magnetic field. The longitudinal magnetic field repeatedly acts on these cladding areas. After the magnetic field intervention, these cladding areas distributed on the outer circular surface of the substrate are connected more uniformly, improving the surface quality.

[0026] The above orientation references do not represent the specific orientations of each component in this implementation scheme. This implementation scheme is only for the convenience of describing the scheme and to make relative descriptions based on the orientations referenced. In reality, the specific orientations of each component are based on their actual installation and use, as well as the orientation descriptions that are customary to those skilled in the art. This is hereby stated.

[0027] The specific embodiments described above further illustrate the utility model's purpose, technical solution, and beneficial effects. It should be understood that the above descriptions are merely specific embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. In particular, it should be noted that any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present utility model by those skilled in the art should be included within the scope of protection of the present utility model.

Claims

1. A multi-angle magnetic field loading device for laser cladding, characterized in that, The utility model provides a kind of laser cutting machine, including support (1), one end of the support (1) is connected with annular track (2), annular track (2) is equipped with magnetic field S pole (3) and magnetic field N pole (4), the other end of the support (1) is connected with support (5), the support (5) is mounted with sleeve seat (6) inside, the sleeve seat (6) is equipped with laser head (7) inside, the laser head (7) is located on the center of annular track (2), the magnetic field S pole (3) and the magnetic field N pole (4) are wrapped on the peripheral circumference of the laser head (7), and form magnetic field relative to the laser head (7), both sides of the support (1) are equipped with assembly hole (8) connected on mechanical arm.

2. The multi-angle magnetic field loading device for laser cladding according to claim 1, characterized in that, The annular track (2) is connected with gear ring (9) inside, the magnetic field S pole (3) and the magnetic field N pole (4) are installed on the gear ring (9), the support (1) is installed with motor (10), the motor (10) is installed with gear (11) engaged on the gear ring (9) on the action axis, the gear ring (9) is wrapped with the magnetic field S pole (3) and the magnetic field N pole (4) on the peripheral rotation of the laser head (7).

3. The multi-angle magnetic field loading device for laser cladding according to claim 2, characterized in that, Both sides of the support (1) are equipped with symmetrical connecting portion (14), and the assembly hole (8) is opened in two The connecting portion (14) is symmetrical.

4. The multi-angle magnetic field loading device for laser cladding according to claim 3, characterized in that, The support (5) is fixed with connecting frame (12), the connecting frame (12) is installed with electric cylinder (13), one end of the laser head (7) passes through the sleeve seat (6) and is connected on the action rod of the electric cylinder (13).

5. The multi-angle magnetic field loading device for laser cladding according to claim 4, characterized in that, The gear ring (9) is fixed with two curved rods (15), two The curved rod (15) enters the annular track (2) from one end of the annular track (2), and is bent from the annular track (2) to the other end of the annular track (2) in the annular track (2), the magnetic field S pole (3) and the magnetic field N pole (4) are installed on the other end of two The curved rod (15) and away from the laser head (7).

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