A bearing inner and outer ring double-beam laser cutting device and method

Abstract

The application relates to the technical field of laser cutting, in particular to a bearing inner and outer ring double-beam laser cutting device and method, which comprises a cutting base, a limiting mechanism for supporting and limiting the bearing is installed on the cutting base, and a cutting mechanism for cutting the bearing inner and outer rings is installed on the cutting base; in the cutting mechanism, two laser cutting heads can synchronously cut the bearing inner and outer rings through mutual cooperation, the machining cycle is shortened, the machining efficiency of the bearing inner and outer rings is improved, the bearing inner and outer rings are synchronously cut under the same clamping reference, the reference conversion error caused by distributed machining is eliminated, the concentricity of the bearing inner and outer rings is guaranteed, in addition, the bearing inner and outer rings are synchronously cut through the two laser cutting heads, then the bearing inner and outer rings are synchronously heated so that the internal stress distribution is uniform, the ovality deviation or local warping caused by one-side cutting of the laser cutting head on the bearing inner and outer rings is effectively inhibited, and the cutting effect of the bearing inner and outer rings is guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of laser cutting, and in particular to a dual-beam laser cutting device and method for inner and outer rings of bearings. Background Technology

[0002] Laser cutting technology has been widely used in manufacturing in recent years, especially in the field of high-precision machining. While traditional mechanical cutting methods are simple and easy to implement, their precision and the quality of the cut edges are insufficient to meet the demands of modern industry. This is particularly true when machining bearing inner and outer rings, where the extremely high precision requirements, such as dimensional accuracy, surface roughness, and cut edge quality, render traditional mechanical cutting techniques inadequate.

[0003] Large bearings required for wind power generation equipment, mining and metallurgical equipment, etc., also need to meet processing precision requirements.

[0004] Therefore, in order to meet the above-mentioned processing accuracy requirements, the bearing processing method has shifted from mechanical cutting to laser cutting. For example, patent application CN117161581A discloses a burr cleaning device for the outer wall of bearing races, which integrates fixing and cutting components to achieve efficient cleaning of races of different sizes. The cutting component is equipped with a laser cutting head, and its movement is controlled by a third motor. The fourth threaded rod cooperates with the clamping plate to link the second adjusting plate and the third threaded rod, so that the third motor drives the cutting head to rotate circumferentially while adjusting the position of the cutting head. With the help of high-frequency pulses of the laser beam, the burrs on the outer wall of the race are cleaned, which greatly improves the cleaning efficiency and quality.

[0005] Although existing technologies can use laser beams to clean burrs on the outer wall of bearing races, and the cutting is completed by controlling the distance between the laser beam and the outer wall of the race by moving the cutting head, significant technical bottlenecks still exist. First, existing technologies rely on internal supports to limit and fix the bearing races, which prevents the cutting operation from penetrating deep into the inner wall of the race. If it is necessary to deal with burrs on the inner wall, the clamping and limiting structure must be readjusted. This process is not only cumbersome, but also significantly extends the processing cycle, severely restricting production efficiency.

[0006] Secondly, in the single laser beam cutting mode, the inner and outer walls of the bearing rings are heated unevenly, resulting in an imbalance in the distribution of thermal stress. This can easily cause local ellipticity deviations or warping deformation of the sidewalls, directly affecting the form and position tolerance accuracy of the bearing. Consequently, it can cause irreversible damage to the overall machining quality and mechanical properties of the bearing, making it difficult to meet the process requirements for high-precision bearing manufacturing. Summary of the Invention

[0007] To address the aforementioned technical problems, this application provides a dual-beam laser cutting device and method for bearing inner and outer rings, employing the following technical solution:

[0008] In a first aspect, a dual-beam laser cutting device for the inner and outer rings of a bearing includes a cutting base, on which a limiting mechanism for supporting and limiting the bearing and a cutting mechanism for cutting the inner and outer rings of the bearing are mounted, wherein the cutting mechanism includes:

[0009] There are two support rods located on the inner and outer sides of the bearing and symmetrically distributed along the length of the cutting base. They are inserted into the cutting base, and the cutting frame is mounted on both support rods.

[0010] Two movable blocks are provided and symmetrically arranged along the length of the cutting frame. The movable blocks are located on the inner and outer sides of the bearing and are slidably installed on the cutting frame.

[0011] A vertical plate is installed at the top center of the cutting machine frame. A bidirectional screw is mounted on the vertical plate via a bearing, and the two ends of the bidirectional screw are connected to the corresponding side moving blocks by threaded connection.

[0012] The laser cutting head has two parts, which are mounted on the bottom of the moving blocks on the corresponding sides.

[0013] Preferably, the moving block is symmetrically provided with connecting plates along the width direction of the cutting machine frame, and the connecting plates are installed on the corresponding side of the moving block. A pressing roller for pressing the bearing is rotatably installed on the connecting plate through a bearing.

[0014] Preferably, the limiting mechanism includes a rotating shaft that is rotatably mounted in the middle of the cutting base through a bearing, a plurality of support seats are evenly arranged on the cutting base along the circumference of the rotating shaft, and a plurality of inner support plates corresponding one-to-one with the support seats are also slidably arranged on the cutting base.

[0015] Preferably, the cutting base has through slots that correspond one-to-one with the support seats, an adjusting block is installed inside the through slot, and the support seats are installed on the adjusting blocks. A limiting block for external clamping of the bearing is installed on the support seats.

[0016] Preferably, the bottom of the rotating shaft extends through the cutting base, and a traction rope is provided between the part of the rotating shaft at the bottom of the cutting base and the adjusting block. One end of the traction rope is installed on the adjusting block, and the end of the traction rope away from the adjusting block is wrapped around the rotating shaft. The bottom of the cutting base is provided with fixed protrusions that correspond one-to-one with the adjusting blocks, and a reset spring rod is installed between the fixed protrusions and the corresponding adjusting blocks.

[0017] Preferably, both the limiting block and the support seat are rotatably mounted with rollers that cooperate with the bearing.

[0018] Preferably, the inner support plate has a Z-shaped structure, and the horizontal section below the inner support plate is slidably limited on the cutting base. The cutting base is provided with a fixed connecting block that corresponds to the inner support plate one by one, and a return spring rod is installed between the fixed connecting block and the corresponding vertical section of the inner support plate.

[0019] Preferably, a lifting block is installed on the rotating shaft via a threaded connection. The bottom of the lifting block has a frustum. A linkage rod is installed on the horizontal section below the inner support plate. A limiting groove that cooperates with the linkage rod is opened on the frustum, and the linkage rod is slidably disposed inside the limiting groove.

[0020] Preferably, an adjusting plate is fitted onto the end face of the horizontal section above the inner support plate, a limiting rod is inserted into the adjusting plate, and multiple limiting holes that cooperate with the limiting rod are evenly opened along the length direction of the horizontal section above the inner support plate. A roller is rotatably installed on the side of the adjusting plate away from the inner support plate.

[0021] Secondly, a dual-beam laser cutting method for the inner and outer rings of a bearing includes the following steps:

[0022] S1: Placement process: Remove the cutting machine frame using the support rod, and then place the bearing on the support seat.

[0023] S2: Limiting treatment, the bearing is internally supported by the inner support plate and externally clamped by the limiting block.

[0024] S3: Cutting process, the inner and outer rings of the bearing are cut using dual laser cutting heads.

[0025] S4: Collection and processing. After the inner and outer rings of the bearing are cut, the cutting frame is removed using the support rod, and then the bearing is taken out.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. In the cutting mechanism designed in this invention, two laser cutting heads cooperate to simultaneously cut the inner and outer rings of the bearing, shortening the processing cycle and improving the processing efficiency of the inner and outer rings. At the same time, the inner and outer rings of the bearing are cut synchronously under the same clamping datum, eliminating the datum conversion error caused by distributed processing and ensuring the concentricity of the inner and outer rings of the bearing. In addition, by cutting the inner and outer rings of the bearing synchronously with two laser cutting heads, the inner and outer rings of the bearing are heated synchronously, making the internal stress distribution uniform. This effectively suppresses the ellipticity deviation or local warping caused by the laser cutting head cutting the inner and outer rings of the bearing on one side, ensuring the cutting effect of the inner and outer rings of the bearing.

[0028] 2. In the limiting mechanism designed in this invention, the inner ring of the bearing is supported and positioned by an inner support plate, while the outer ring of the bearing is clamped and fixed by a limiting block. Under the action of external driving force, the bearing can rotate autonomously, while the laser cutting head remains stationary. Compared with the traditional processing method of fixing the bearing and rotating the laser cutting head, this design effectively avoids the interference problem of the inner support plate and the limiting block on the laser cutting path, eliminating the influence of mechanical components on cutting accuracy from the structural design level. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the three-dimensional mounting structure between the present invention and the bearing.

[0030] Figure 2 This is a three-dimensional structural schematic diagram of the present invention.

[0031] Figure 3 This is a schematic diagram of the three-dimensional installation structure between the support rod, cutting frame, and moving block of the present invention.

[0032] Figure 4 This is a three-dimensional installation structure diagram of the rotating shaft, support seat, and inner support plate of the present invention.

[0033] Figure 5 This is a three-dimensional installation structure diagram of the rotating shaft, lifting block, and linkage rod of the present invention.

[0034] Figure 6 This is a three-dimensional installation structure diagram of the adjusting block, support seat, and roller of the present invention.

[0035] Figure 7 This is a schematic diagram of the three-dimensional installation structure between the inner support plate, adjustment plate, and rollers of the present invention.

[0036] Figure 8 This is a flowchart of the dual-beam laser cutting method for the inner and outer rings of bearings according to the present invention.

[0037] Explanation of reference numerals in the attached drawings: 1. Cutting base; 2. Limiting mechanism; 21. Rotating shaft; 22. Support seat; 23. Inner support plate; 231. Adjusting plate; 232. Limiting rod; 233. Limiting hole; 234. Roller; 24. Adjusting block; 25. Limiting block; 251. Roller; 26. Traction rope; 27. Return spring rod; 28. Return spring rod; 29. ​​Lifting block; 291. Limiting groove; 20. Linkage rod; 3. Cutting mechanism; 31. Support rod; 32. Cutting frame; 33. Moving block; 331. Connecting plate; 332. Pressing roller; 34. Vertical plate; 35. Bidirectional screw; 36. Laser cutting head. Detailed Implementation

[0038] The following is in conjunction with the appendix Figures 1 to 8 This application will be described in further detail.

[0039] This application discloses a dual-beam laser cutting device and method for bearing inner and outer rings. By using dual laser beams to simultaneously cut the inner and outer rings of the bearing, the inner and outer rings of the bearing are heated simultaneously to make the internal stress distribution uniform. This effectively suppresses the ellipticity deviation or local warping caused by the laser beam cutting the inner and outer rings of the bearing on one side, and ensures the cutting effect of the inner and outer rings of the bearing. Example

[0040] Reference Figures 1 to 3 A dual-beam laser cutting device for bearing inner and outer rings includes a cutting base 1, on which a limiting mechanism 2 for supporting and limiting the bearing and a cutting mechanism 3 for cutting the inner and outer rings of the bearing are installed. The cutting mechanism 3 includes:

[0041] There are two support rods 31, located on the inner and outer sides of the bearing and symmetrically distributed along the length of the cutting base 1. They are inserted into the cutting base 1, and the cutting frame 32 is mounted on both support rods 31.

[0042] There are two movable blocks 33, which are symmetrically arranged along the length of the cutting frame 32. The movable blocks 33 are located on the inner and outer sides of the bearing and are slidably installed on the cutting frame 32.

[0043] A vertical plate 34 is installed at the top center of the cutting machine frame 32. A bidirectional screw 35 is rotatably mounted on the vertical plate 34 via a bearing, and the two ends of the bidirectional screw 35 are connected to the corresponding side moving block 33 by threaded connection.

[0044] The laser cutting head 36 has two parts and is mounted on the bottom of the moving blocks 33 on the corresponding sides.

[0045] Reference Figures 4 to 5 The limiting mechanism 2 includes a rotating shaft 21 that is rotatably installed in the middle of the cutting base 1 through a bearing. Multiple support seats 22 are evenly arranged on the cutting base 1 along the circumference of the rotating shaft 21. Multiple inner support plates 23 corresponding to the support seats 22 are also slidably arranged on the cutting base 1.

[0046] The cutting base 1 has through slots that correspond one-to-one with the support seat 22. An adjusting block 24 is installed inside the through slot, and the support seat 22 is installed on the adjusting block 24. A limiting block 25 for clamping the bearing is installed on the support seat 22.

[0047] The bottom of the rotating shaft 21 passes through the cutting base 1. A traction rope 26 is provided between the part of the rotating shaft 21 located at the bottom of the cutting base 1 and the adjusting block 24. One end of the traction rope 26 is installed on the adjusting block 24, and the other end of the traction rope 26 away from the adjusting block 24 is wrapped around the rotating shaft 21. The bottom of the cutting base 1 is provided with a fixed protrusion that corresponds to the adjusting block 24. A reset spring rod 27 is installed between the fixed protrusion and the corresponding adjusting block 24.

[0048] In actual operation, the support rod 31 is pulled out, and the cutting frame 32 is removed through the support rod 31. Then, the bearing is placed on the support seat 22. At this time, the existing driving force (motor, etc.) drives the rotating shaft 21 to rotate. During the rotation of the rotating shaft 21, the traction rope 26 is wound around it. During the winding process, the traction rope 26 drives the adjusting block 24 to move towards one side of the rotating shaft 21. At this time, the reset spring rod 27 is stretched. During the movement of the adjusting block 24, the limiting block 25 is driven to abut against the outer ring of the bearing. Thus, the limiting block 25 can clamp and limit the outer ring of the bearing, so that the bearing and the rotating shaft 21 are concentric, ensuring the distance accuracy between the bearing and the laser cutting head 36 in the future.

[0049] Reference Figure 4 as well as Figure 5 The inner support plate 23 has a Z-shaped structure. The horizontal section below the inner support plate 23 is slidably limited on the cutting base 1. The cutting base 1 is provided with a fixed connecting block that corresponds one-to-one with the inner support plate 23. A return spring rod 28 is installed between the fixed connecting block and the corresponding vertical section of the inner support plate 23.

[0050] A lifting block 29 is installed on the rotating shaft 21 by a threaded connection. The bottom of the lifting block 29 has a frustum. A linkage rod 20 is installed on the horizontal section below the inner support plate 23. A limiting groove 291 that cooperates with the linkage rod 20 is opened on the frustum, and the linkage rod 20 is slidably disposed inside the limiting groove 291.

[0051] During operation, the rotating shaft 21 rotates, causing the lifting block 29 to rotate via a threaded connection. At this time, the linkage rod 20 and the limiting groove 291 cooperate to block the rotation of the lifting block 29. In other words, the linkage rod 20 and the limiting groove 291 cooperate to organize the rotation of the lifting block 29. As the rotating shaft 21 rotates via a threaded connection, it causes the lifting block 29 to move downward. During the downward movement of the lifting block 29, the limiting groove 291 cooperates with the frustum surface to drive the linkage rod 20 to move synchronously. At this time, due to the obstruction of the limiting groove 291, the linkage rod 20 causes the horizontal section below the inner support plate 23 to move towards the bearing side on the cutting base 1. At this time, the return spring rod 28 is compressed.

[0052] During the movement of the inner support plate 23, the horizontal section above it can provide internal support for the bearing. Furthermore, through the coordinated action of the inner support and the outer clamping limit, the bearing can be limited to ensure its stability.

[0053] After the bearing is in position, the support rod 31 is re-inserted onto the cutting base 1. The cutting frame 32 is reset and drives the laser cutting head 36 to be located near the inner and outer rings of the bearing. At this time, according to the required cutting thickness of the inner and outer rings of the bearing, the bidirectional screw 35 is driven to rotate by external driving force (motor, etc.). During the rotation of the bidirectional screw 35, the moving block 33 is driven to move towards each other through the threaded connection. During the movement of the moving block 33, the laser cutting head 36 is driven to move a specified distance until the laser cutting head 36 moves to the required cutting position. At this time, the laser cutting head 36 is started, and the bearing is driven to rotate by external force (human push, etc.).

[0054] During the bearing's rotation, the laser cutting head 36 can cut the inner and outer rings of the bearing. The inner ring is supported and positioned by the inner support plate 23, while the outer ring is clamped and fixed by the limiting block 25. Under the action of external driving force, the bearing can rotate autonomously, while the laser cutting head 36 remains stationary. Compared with the traditional processing method of fixing the bearing and rotating the laser cutting head 36, this design effectively avoids the interference problem of the inner support plate 23 and the limiting block 25 on the laser cutting path. By decoupling the motion path of the limiting function and the cutting function, the influence chain of the limiting component on the cutting trajectory is cut off at the mechanical structure level, allowing the laser beam to act on the processing area without interference, significantly improving the consistency and reliability of cutting accuracy.

[0055] Thus, the two laser cutting heads 36 can work together to cut the inner and outer rings of the bearing simultaneously, shortening the processing cycle and improving the processing efficiency of the inner and outer rings. At the same time, the inner and outer rings of the bearing are cut simultaneously under the same clamping reference, eliminating the reference conversion error caused by distributed processing and ensuring the concentricity of the inner and outer rings of the bearing. In addition, by cutting the inner and outer rings of the bearing simultaneously with the two laser cutting heads 36, the inner and outer rings of the bearing are heated simultaneously, making the internal stress distribution uniform. This effectively suppresses the ellipticity deviation or local warping caused by the laser cutting head 36 cutting the inner and outer rings of the bearing on one side, ensuring the cutting effect of the inner and outer rings of the bearing.

[0056] Reference Figure 6 Both the limiting block 25 and the support seat 22 are rotatably mounted with rollers 251 that cooperate with the bearing. The rollers 251 can reduce the friction between the bearing and the limiting block 25 and the support seat 22, avoid secondary damage to the bearing during laser cutting, and improve the quality of the bearing during laser cutting.

[0057] Furthermore, an air pump is installed on the opposite side of the moving block 33 via a connecting plate. When the laser cutting head 36 is running, the air pump can spray directional airflow into the cutting area in real time. On the one hand, the airflow can quickly act on the high-temperature waste chips, causing their surface to cool and solidify rapidly, effectively avoiding the problem of waste chip adhesion caused by the molten state. On the other hand, the strong airflow impact force can directly blow the waste chips to the cutting base 1, preventing the waste chips from entangled and accumulated on the bearing side wall, eliminating the risk of waste chip residue interfering with the subsequent cutting process, thereby ensuring the stability and processing accuracy of the entire laser cutting process.

[0058] The directional airflow generated by the air pump can also be precisely directed towards the inner and outer rings of the bearing, forming a dynamic heat dissipation mechanism. This airflow not only quickly removes the high heat generated by laser cutting, effectively controlling the temperature rise of the bearing, but also physically avoids the risk of deformation of the inner and outer rings due to localized overheating. Compared with traditional passive heat dissipation methods, this active air-cooling design, together with the limiting mechanism 2, creates a synergistic effect, ensuring the bearing's rotational accuracy while maintaining the stability of the material's mechanical properties through real-time thermal management, providing dual protection for high-precision cutting processes.

[0059] Looking back Figure 3 In order to further avoid deformation of the inner and outer rings of the bearing at the cutting point, the pressing roller 332 provided by the present invention can perform a correction treatment on the bearing cutting point during cutting. Specifically, a connecting plate 331 is symmetrically arranged on the moving block 33 along the width direction of the cutting frame 32, and the connecting plate 331 is installed on the corresponding side of the moving block 33. The pressing roller 332 for pressing the bearing is rotatably mounted on the connecting plate 331 through the bearing.

[0060] It should be noted that the pressure roller 332 and the laser cutting head 36 are precisely misaligned in spatial layout, ensuring that when the laser cutting head 36 is in the working position, the pressure roller 332 is exactly in contact with the side wall of the bearing. During the actual operation, while the laser cutting head 36 cuts the inner and outer rings of the bearing, the adjacent pressure rollers 332 located on both sides of the bearing simultaneously apply pressure to the cut area. Through this dynamic collaborative operation, deformation at the bearing cut point is effectively suppressed, thereby significantly improving the processing quality of the bearing.

[0061] Example 2: Refer to Figure 7 Based on Embodiment 1, in order to increase the applicability of the present invention, the present invention can also cut bearings of different thicknesses. Specifically, an adjusting plate 231 is sleeved on the end face of the horizontal section above the inner support plate 23, and a limiting rod 232 is inserted into the adjusting plate 231. Multiple limiting holes 233 that cooperate with the limiting rod 232 are evenly opened along the length direction of the horizontal section above the inner support plate 23. A roller 234 is rotatably installed on the side of the adjusting plate 231 away from the inner support plate 23.

[0062] In actual operation, when the bearing thickness changes, the limiting block 25 still moves along the preset trajectory, and the distance between the inner support plate 23 and the inner ring of the bearing changes accordingly. By pulling out the limiting rod 232, the position of the adjusting plate 231 and the inner ring of the bearing can be adjusted according to the actual distance between them, so that the roller 234 is in close contact with the inner ring of the bearing. Then, the limiting rod 232 is passed through the adjusting plate 231 and inserted into the limiting hole 233, so that the adjusting plate 231 and the inner support plate 23 remain relatively fixed. The roller 234 can reduce the friction between the adjusting plate 231 and the inner ring of the bearing, thus protecting the inner ring of the bearing.

[0063] This adjustment mechanism can accurately compensate for changes in the distance between the inner support plate 23 and the inner ring of the bearing, ensuring that bearings of different thicknesses can obtain stable support, significantly expanding the applicability of the device and enabling compatible processing of bearings of multiple specifications.

[0064] Finally, refer to Figure 8 The present invention also provides a method for dual-beam laser cutting of the inner and outer rings of a bearing, comprising the following steps:

[0065] S1: Placement process: Remove the cutting frame 32 using the support rod 31, and then place the bearing on the support seat 22.

[0066] S2: Limiting process. During the downward movement of the lifting block 29, the limiting groove 291 and the frustum surface work together to drive the linkage rod 20 to move synchronously. At this time, due to the obstruction of the limiting groove 291, the linkage rod 20 drives the horizontal section below the inner support plate 23 to move towards the bearing side on the cutting base 1. During the movement of the inner support plate 23, the horizontal section above it can provide internal support for the bearing.

[0067] Then, the existing driving force (motor, etc.) drives the rotating shaft 21 to rotate. During the rotation of the rotating shaft 21, the traction rope 26 is wound around it. During the winding process, the traction rope 26 drives the adjusting block 24 to move towards one side of the rotating shaft 21. At this time, the reset spring rod 27 is stretched. During the movement of the adjusting block 24, the limiting block 25 is driven to abut against the outer ring of the bearing. Thus, the limiting block 25 can clamp and limit the outer ring of the bearing, so that the bearing and the rotating shaft 21 are concentric.

[0068] S3: Cutting process, which causes the bearing to rotate, and then the inner and outer rings of the bearing are cut by the dual laser cutting head 36.

[0069] S4: Collection and processing. After the inner and outer rings of the bearing are cut, the inner support plate 23 and the limiting block 25 are reset, and the cutting frame 32 is removed by the support rod 31, and then the bearing is taken out.

[0070] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0071] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dual-beam laser cutting device for inner and outer rings of bearings, comprising a cutting base, characterized in that: The cutting base is equipped with a limiting mechanism for supporting and limiting the bearing, and a cutting mechanism for cutting the inner and outer rings of the bearing. The cutting mechanism includes: There are two support rods located on the inner and outer sides of the bearing and symmetrically distributed along the length of the cutting base. They are inserted into the cutting base, and the cutting frame is mounted on both support rods. Two movable blocks are provided and symmetrically arranged along the length of the cutting frame. The movable blocks are located on the inner and outer sides of the bearing and are slidably installed on the cutting frame. A vertical plate is installed at the top center of the cutting machine frame. A double-ended screw is rotatably mounted on the vertical plate via bearings, and the two ends of the double-ended screw are connected to the corresponding side moving blocks by threaded connection. Two laser cutting heads are provided and mounted on the bottom of the moving blocks on corresponding sides; The limiting mechanism includes a rotating shaft that is rotatably mounted in the middle of the cutting base through a bearing. Multiple support seats are evenly arranged on the cutting base along the circumference of the rotating shaft. Multiple inner support plates corresponding to the support seats are also slidably arranged on the cutting base. The cutting base has through slots that correspond one-to-one with the support seats. An adjustment block is installed inside the through slot, and the support seats are installed on the adjustment blocks. A limiting block for external clamping of the bearing is installed on the support seats. The bottom of the rotating shaft passes through the cutting base. A traction rope is provided between the part of the rotating shaft at the bottom of the cutting base and the adjusting block. One end of the traction rope is installed on the adjusting block, and the other end of the traction rope away from the adjusting block is wrapped around the rotating shaft. The bottom of the cutting base is provided with fixed protrusions that correspond one-to-one with the adjusting blocks. A return spring rod is installed between the fixed protrusions and the corresponding adjusting blocks.

2. The dual-beam laser cutting equipment for bearing inner and outer rings according to claim 1, characterized in that: A connecting plate is symmetrically arranged on the moving block along the width direction of the cutting machine frame, and the connecting plate is installed on the corresponding side of the moving block. A pressing roller is rotatably mounted on the connecting plate through a bearing to press the bearing.

3. The dual-beam laser cutting equipment for bearing inner and outer rings according to claim 1, characterized in that: Both the limit block and the support seat are rotatably mounted with rollers that cooperate with the bearings.

4. The dual-beam laser cutting equipment for bearing inner and outer rings according to claim 1, characterized in that: The inner support plate has a Z-shaped structure. The horizontal section below the inner support plate is slidably limited on the cutting base. The cutting base is equipped with fixed connecting blocks that correspond one-to-one with the inner support plate. A return spring rod is installed between the fixed connecting blocks and the corresponding vertical section of the inner support plate.

5. The dual-beam laser cutting equipment for inner and outer rings of bearings according to claim 1, characterized in that: A lifting block is installed on the rotating shaft via a threaded connection. A frustum is formed at the bottom of the lifting block. A linkage rod is installed on the horizontal section below the inner support plate. A limiting groove is formed on the frustum to cooperate with the linkage rod, and the linkage rod is slidably positioned inside the limiting groove.

6. The dual-beam laser cutting equipment for bearing inner and outer rings according to claim 1, characterized in that: An adjusting plate is fitted onto the end face of the horizontal section above the inner support plate. A limit rod is inserted into the adjusting plate. Multiple limit holes that cooperate with the limit rod are evenly opened along the length of the horizontal section above the inner support plate. A roller is rotatably installed on the side of the adjusting plate away from the inner support plate.

7. A method for dual-beam laser cutting of inner and outer rings of a bearing, comprising a dual-beam laser cutting device for inner and outer rings of a bearing as described in any one of claims 1-6, characterized in that, Its usage includes the following steps: S1: Placement process: Remove the cutting machine frame using the support rod, and then place the bearing on the support seat; S2: Limiting treatment, the bearing is internally supported by the inner support plate and externally clamped by the limiting block; S3: Cutting process, the inner and outer rings of the bearing are cut using dual laser cutting heads; S4: Collection and processing. After the inner and outer rings of the bearing are cut, the cutting frame is removed using the support rod, and then the bearing is taken out.

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