Double-beam laser cutting equipment and method for inner ring and outer ring of bearing

Abstract

The invention relates to the technical field of laser cutting, in particular to bearing inner and outer ring double-beam laser cutting equipment and method.The bearing inner and outer ring double-beam laser cutting equipment comprises a cutting base, and a limiting mechanism used for bearing and limiting a bearing and a cutting mechanism used for cutting the bearing inner and outer rings are installed on the cutting base; according to the designed cutting mechanism, the two laser cutting heads are matched with each other to synchronously cut the inner and outer rings of the bearing, the machining period is shortened, the machining efficiency of the inner and outer rings of the bearing is improved, meanwhile, the inner and outer rings of the bearing are synchronously cut under the same clamping datum, datum conversion errors caused by distributed machining are eliminated, and machining precision is improved. In addition, the inner ring and the outer ring of the bearing are synchronously cut through the two laser cutting heads, so that the inner ring and the outer ring of the bearing are synchronously heated to enable internal stress to be evenly distributed, ovality deviation or local warping caused by single-side cutting of the inner ring and the outer ring of the bearing through the laser cutting heads is effectively restrained, and the cutting effect of the inner ring and the outer ring of the bearing is guaranteed.

Description

TECHNICAL FIELD

[0001] 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. BACKGROUND

[0002] In recent years, laser cutting technology has been widely used in manufacturing industry, especially in the field of high-precision machining. Although the traditional mechanical tool cutting method is simple and easy to implement, its precision and cutting edge quality are difficult to meet the needs of modern industry. Especially when machining bearing inner and outer ring workpieces, since these workpieces have very high precision requirements, such as size precision, surface roughness and cutting edge quality, the use of traditional mechanical cutting technology cannot meet the machining requirements.

[0003] Among them, large bearings required by wind power equipment, mining and metallurgical equipment also need to meet the machining precision.

[0004] Therefore, in order to meet the above machining precision requirements, the bearing machining method is changed from mechanical cutting to laser cutting. For example, the patent application with publication number CN117161581A discloses a bearing ring outer wall burr cleaning device, which combines a fixing and cutting assembly to achieve efficient cleaning of different size rings. The cutting assembly is equipped with a laser cutting head, which is controlled by a third motor. The fourth threaded rod cooperates with the clamping plate to link the second adjusting disc and the third threaded rod, so that the third motor drives the cutting head to rotate while adjusting its position. With the high-frequency pulse of the laser beam, the outer wall burr of the ring is cleaned, and the cleaning efficiency and quality are greatly improved.

[0005] Although the existing technology can clean the burrs on the outer wall of the bearing ring by means of a laser beam, the cutting is completed by controlling the distance between the laser beam and the outer part of the ring by moving the cutting head, but there are still significant technical bottlenecks. First, the existing technology relies on an inner support method to position and fix the bearing ring, which makes it impossible to cut deep into the inner wall of the ring. If the inner wall burrs need to be processed, the clamping and positioning structure must be adjusted again. This process is not only tedious, but also greatly prolongs the machining cycle, which seriously restricts the production efficiency.

[0006] Secondly, in the single laser beam cutting mode, the inner and outer walls of the bearing ring are heated unevenly, which causes an imbalance in the distribution of thermal stress, and is prone to cause local ovality of the side wall to be out of tolerance or warping deformation, directly affecting the form and position tolerance accuracy of the bearing, and further causing irreversible damage to the overall machining quality and mechanical properties of the bearing, which is difficult to meet the process requirements of high-precision bearing manufacturing. SUMMARY

[0007] In order to solve the above technical problems, the application provides a bearing inner and outer ring double-beam laser cutting device and method, which adopts the following technical scheme: The first aspect is a bearing inner and outer ring double-beam laser cutting device, comprising a cutting base, a limiting mechanism for supporting and limiting the bearing, and a cutting mechanism for cutting the bearing inner and outer rings, wherein the cutting mechanism comprises: Supporting rods are provided with two and are symmetrically distributed on the length direction of the cutting base and are inserted into the cutting base. Two supporting rods are commonly installed with a cutting frame.

[0008] Moving blocks are provided with two and are symmetrically arranged along the length direction of the cutting frame. The moving blocks are arranged on the inner and outer sides of the bearing and are slidably installed in the cutting frame.

[0009] A vertical plate is installed at the middle of the top of the cutting frame. A bidirectional screw is rotatably installed on the vertical plate through a bearing, and the two ends of the bidirectional screw are installed on the corresponding side moving blocks through a threaded connection.

[0010] Laser cutting heads are provided with two and are installed at the bottom of the corresponding side moving blocks.

[0011] Preferably, a connecting plate is symmetrically arranged on the moving block along the width direction of the cutting frame, and the connecting plate is 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.

[0012] Preferably, the limiting mechanism comprises a rotating shaft rotatably installed in the middle of the cutting base through a bearing. A plurality of supporting seats are uniformly arranged on the cutting base along the circumference of the rotating shaft. A plurality of inner supporting plates corresponding to the supporting seats are limitingly and slidably arranged on the cutting base.

[0013] Preferably, a through groove corresponding to the supporting seat is formed in the cutting base. An adjusting block is installed in the through groove. The supporting seat is installed on the adjusting block. A limiting block for clamping the outer bearing is installed on the supporting seat.

[0014] Preferably, the bottom of the rotating shaft penetrates the cutting base. A traction rope is arranged between the part of the rotating shaft located at the bottom of the cutting base and the adjusting block. One end of the traction rope is installed on the adjusting block. The end of the traction rope away from the adjusting block is wound around the rotating shaft. A fixed protrusion corresponding to the adjusting block is arranged at the bottom of the cutting base. A return spring rod is commonly installed between the fixed protrusion and the corresponding adjusting block.

[0015] Preferably, a roller cooperating with the bearing is rotatably installed on the limiting block and the supporting seat.

[0016] Preferably, the inner supporting plate is in a Z-shaped structure. The horizontal section of the inner supporting plate is limitingly and slidably arranged on the cutting base. A fixed connecting block corresponding to the inner supporting plate is arranged on the cutting base. A return spring rod is commonly installed between the fixed connecting block and the vertical section of the corresponding inner supporting plate.

[0017] Preferably, the rotating shaft is provided with a lifting block through a threaded connection, the bottom of the lifting block is provided with a circular table, the horizontal section below the inner support plate is provided with a linkage rod, the circular table is provided with a limiting groove matched with the linkage rod, and the linkage rod is slidably arranged in the limiting groove.

[0018] Preferably, the horizontal section of the inner support plate is provided with an adjusting plate, the adjusting plate is provided with a limiting rod, the horizontal section of the inner support plate is uniformly provided with a plurality of limiting holes matched with the limiting rod along the length direction, and the side, away from the inner support plate, of the adjusting plate is rotatably provided with a roller.

[0019] In a second aspect, a double-beam laser cutting method for inner and outer rings of a bearing is provided, and the method comprises the following steps: S1: placing and processing, the cutting frame is pulled off through the support rod, and the bearing is placed on the bearing support.

[0020] S2: limiting processing, the bearing is supported by the inner support plate, and the bearing is clamped by the limiting block.

[0021] S3: cutting processing, the inner and outer rings of the bearing are cut by the double laser cutting heads.

[0022] S4: collecting processing, after the cutting of the inner and outer rings of the bearing is completed, the cutting frame is taken off through the support rod, and the bearing is taken out.

[0023] In summary, the present application has at least one of the following beneficial technical effects: 1. In the cutting mechanism, the two laser cutting heads can cooperate with each other to cut the inner and outer rings of the bearing synchronously, the processing cycle is shortened, the processing efficiency of the inner and outer rings of the bearing is improved, the inner and outer rings of the bearing are cut synchronously under the same clamping reference, the reference conversion error caused by distributed processing is eliminated, the concentricity of the inner and outer rings of the bearing is ensured, and in addition, the inner and outer rings of the bearing are synchronously cut by the two laser cutting heads, so that the inner and outer rings of the bearing are synchronously heated to make the internal stress distribution uniform, the ovality deviation or local warping caused by one-side cutting of the laser cutting head on the inner and outer rings of the bearing is effectively inhibited, and the cutting effect of the inner and outer rings of the bearing is ensured.

[0024] 2. In the limiting mechanism, the inner ring of the bearing is supported and positioned by the inner support plate, and the outer ring of the bearing is clamped and fixed by the limiting block. Under the action of an external driving force, the bearing can rotate autonomously, and the laser cutting head remains in a stationary state. Compared with the traditional processing method of fixing the bearing and rotating the laser cutting head, the design effectively avoids the interference of the inner support plate and the limiting block with the laser cutting path, and eliminates the influence of mechanical components on the cutting precision from the aspect of structural design. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic diagram of the three-dimensional mounting structure between the application and the bearing.

[0026] Figure 2 is a schematic diagram of the three-dimensional structure of the application.

[0027] Figure 3 is a schematic diagram of the three-dimensional mounting structure between the support rod, cutting frame, and moving block of the application.

[0028] Figure 4 is a schematic diagram of the three-dimensional mounting structure between the rotating shaft, bearing seat, and inner support plate of the application.

[0029] Figure 5 is a schematic diagram of the three-dimensional mounting structure between the rotating shaft, lifting block, and linkage rod of the application.

[0030] Figure 6 is a schematic diagram of the three-dimensional mounting structure between the adjusting block, bearing seat, and roller of the application.

[0031] Figure 7 is a schematic diagram of the three-dimensional mounting structure between the inner support plate, adjusting plate, and roller of the application.

[0032] Figure 8 is a flowchart of the double-beam laser cutting method for the inner and outer rings of the bearing.

[0033] BRIEF DESCRIPTION OF THE DRAWINGS: 1, cutting base; 2, limiting mechanism; 21, rotating shaft; 22, bearing 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 DESCRIPTION

[0034] The following will be described in conjunction with the accompanying drawings Figures 1 to 8 The application is further described in detail.

[0035] The application discloses a bearing inner and outer ring double-beam laser cutting device and method. The bearing inner and outer rings are synchronously cut by double laser beams, and then the bearing inner and outer rings are synchronously heated to make the internal stress distribution uniform, effectively inhibit the ovality deviation or local warping caused by the single-sided cutting of the laser beam on the bearing inner and outer rings, and ensure the cutting effect of the bearing inner and outer rings. EMBODIMENT

[0036] Refer to Figures 1 to 3The utility model provides a bearing inner and outer ring double-beam laser cutting equipment, including cutting base 1, cutting base 1 is installed for the bearing and is supported and is limited the limiting mechanism 2 of function and is used for the cutting of bearing inner and outer ring and is cut the cutting mechanism 3, wherein cutting mechanism 3 includes: Supporting rod 31 is provided with two and is located bearing inner and outer both sides and cutting base 1 length direction symmetry distribution, and is inserted on cutting base 1, and two supporting rods 31 are commonly installed with cutting rack 32.

[0037] Moving block 33 is provided with two and is symmetrically set along the length direction of cutting rack 32, and moving block 33 is set on the inner and outer sides of bearing and is slid through the installation on cutting rack 32.

[0038] Vertical plate 34 is installed in the middle position of cutting rack 32 top, and two-way screw rod 35 is rotatably installed on vertical plate 34 through bearing, and two-way screw rod 35 both ends are installed on corresponding side moving block 33 through threaded connection.

[0039] Laser cutting head 36 is provided with two and is installed in the bottom of corresponding side moving block 33.

[0040] Refer to Figures 4 to 5 Limiting mechanism 2 includes rotating shaft 21 rotatably installed in the middle of cutting base 1 through bearing, and a plurality of supporting seats 22 are uniformly arranged on cutting base 1 along the circumference of rotating shaft 21, and a plurality of inner support plates 23 corresponding to supporting seats 22 are limitingly and slidably arranged on cutting base 1.

[0041] Through slots corresponding to supporting seats 22 are formed on cutting base 1, and adjusting block 24 is installed in the through slot, and supporting seat 22 is installed on adjusting block 24, and limiting block 25 clamping the outer bearing is installed on supporting seat 22.

[0042] The bottom of rotating shaft 21 penetrates cutting base 1, and the part of rotating shaft 21 located at the bottom of cutting base 1 is provided with traction rope 26 between adjusting block 24, one end of traction rope 26 is installed on adjusting block 24, the end of traction rope 26 away from adjusting block 24 is wound on rotating shaft 21, and fixed protrusions corresponding to adjusting block 24 are arranged on the bottom of cutting base 1, and reset spring rod 27 is commonly installed between fixed protrusion and corresponding adjusting block 24.

[0043] In specific work, the support rod 31 is pulled out, the cutting frame 32 is taken off through the support rod 31, and the bearing is placed on the bearing seat 22. At this time, the rotating shaft 21 is driven to rotate by the existing driving force (motor, etc.), the rotating shaft 21 rotates to wind the traction rope 26, the traction rope 26 winds to move the adjusting block 24 to the side of the rotating shaft 21, at this time the reset spring rod 27 is stretched, the adjusting block 24 moves to abut the limiting block 25 with the outer ring of the bearing, and then the limiting block 25 can clamp and limit the outer ring of the bearing, so that the bearing is concentric with the rotating shaft 21, and the distance precision between the bearing and the laser cutting head 36 is ensured.

[0044] Referring to Figure 4 And Figure 5 The inner support plate 23 is in Z-shaped structure, and the horizontal section below the inner support plate 23 is limited to slide on the cutting base 1. The cutting base 1 is provided with a fixed connecting block corresponding to the inner support plate 23, and the fixed connecting block and the vertical section of the corresponding inner support plate 23 are jointly installed with a return spring rod 28.

[0045] The rotating shaft 21 is installed with a lifting block 29 through a threaded connection mode, the bottom of the lifting block 29 is provided with a circular table, the horizontal section below the inner support plate 23 is installed with a linkage rod 20, the circular table is provided with a limiting groove 291 matched with the linkage rod 20, and the linkage rod 20 is slidably arranged in the limiting groove 291.

[0046] In specific work, the lifting block 29 has a rotating trend driven by the threaded connection mode during the rotation of the rotating shaft 21, at this time the linkage rod 20 and the limiting groove 291 are matched to block the rotation of the lifting block 29, that is, the linkage rod 20 and the limiting groove 291 are matched to organize the rotation of the lifting block 29. Since the threaded connection mode drives the lifting block 29 to move downward during the rotation of the rotating shaft 21, the lifting block 29 moves downward to drive the linkage rod 20 to move synchronously through the cooperation of the limiting groove 291 and the circular table. At this time, due to the blocking of the limiting groove 291, the linkage rod 20 drives the horizontal section below the inner support plate 23 to move to the side of the bearing on the cutting base 1, and at this time the return spring rod 28 is compressed.

[0047] The horizontal section above the inner support plate 23 can internally support the bearing during the movement of the inner support plate 23, and then the bearing can be limited through the internal support and external clamping and limiting cooperation, so as to ensure the stability of the bearing.

[0048] When the bearing is limited, the support rod 31 is reconnected to 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 respectively. At this time, according to the required cutting thickness of the inner and outer rings of the bearing, the bidirectional screw rod 35 is driven to rotate by external driving force (motor, etc.). During the rotation of the bidirectional screw rod 35, the moving block 33 is moved towards the other end by the threaded connection. The moving block 33 moves the laser cutting head 36 by a specified distance during the movement. Until the laser cutting head 36 moves to the required cutting position, the laser cutting head 36 is started, and the bearing is driven to rotate by external force (man pushing, etc.).

[0049] During the self-rotation of the bearing, the laser cutting head 36 can cut the inner and outer rings of the bearing. The inner support plate 23 supports and positions the inner ring of the bearing, and the limiting block 25 clamps and fixes the outer ring of the bearing. Under the action of external driving force, the bearing can rotate independently, and the laser cutting head 36 remains in a stationary state. Compared with the traditional processing method of fixing the bearing and rotating the laser cutting head 36, this design effectively avoids the interference of the inner support plate 23 and the limiting block 25 with the laser cutting path. By decoupling the movement paths of the limiting function and the cutting function, the influence chain of the limiting component on the cutting trajectory is cut off from the mechanical structure level, so that the laser beam can act on the processing area without interference, significantly improving the consistency and reliability of the cutting precision.

[0050] Therefore, the two laser cutting heads 36 can cooperate with each other to cut the inner and outer rings of the bearing synchronously, shorten the processing period, improve the processing efficiency of the inner and outer rings of the bearing, and eliminate the reference conversion error caused by distributed processing, thereby ensuring the concentricity of the inner and outer rings of the bearing. In addition, through the synchronous cutting of the two laser cutting heads 36 on the inner and outer rings of the bearing, the inner and outer rings of the bearing are synchronously heated, the internal stress distribution is uniform, the ovality deviation or local warping caused by one-sided cutting of the laser cutting head 36 on the inner and outer rings of the bearing is effectively suppressed, and the cutting effect of the inner and outer rings of the bearing is guaranteed.

[0051] Referring to Figure 6 The limiting block 25 and the supporting seat 22 are both rotatably installed with a roller 251 matched with the bearing. The roller 251 can reduce the friction between the bearing and the limiting block 25 and the supporting seat 22, avoid secondary damage to the bearing during laser cutting, and improve the quality of the bearing during laser cutting.

[0052] And the moving block 33 is provided with an air pump through the connecting plate on the opposite surface, and the air pump can spray directional airflow to the cutting area in real time when the laser cutting head 36 is running. The airflow can act on the high-temperature waste quickly, promote the surface of the waste to cool and solidify quickly, effectively avoid the problem of waste adhesion caused by the molten state, and directly blow the waste to the cutting base 1 through the strong airflow impact force, prevent the waste from winding and accumulating on the bearing side wall, eliminate the risk of interfering with the subsequent cutting process due to the waste residue, and thus ensure the stability and processing precision of the whole laser cutting process.

[0053] The directional airflow generated by the air pump can also accurately blow to the inner and outer rings of the bearing to form a dynamic heat dissipation mechanism. The airflow not only quickly removes the high heat generated by laser cutting to effectively control the temperature rise of the bearing, but also avoids the deformation risk of the inner and outer rings caused by local overheating from the physical level. Compared with the traditional passive heat dissipation method, the active air cooling design and the limiting mechanism 2 form a synergistic effect, that is, while ensuring the rotation accuracy of the bearing, the stability of the material mechanical properties is maintained through real-time thermal management, providing double protection for high-precision cutting processing.

[0054] Looking back Figure 3 In order to further avoid the deformation of the inner and outer rings of the bearing at the cutting position, the pressing roller 332 provided by the application can correct the bearing cutting position during cutting. Specifically, the connecting plate 331 is symmetrically arranged on the moving block 33 along the width direction of the cutting rack 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 installed on the connecting plate 331.

[0055] It should be noted that the pressing roller 332 and the laser cutting head 36 are accurately staggered in spatial layout, so that when the laser cutting head 36 is in the working position, the pressing roller 332 is in close contact with the bearing side wall. During the specific operation process, the pressing roller 332 located on the inner and outer sides of the bearing and adjacent to the pressing roller 332 simultaneously performs pressing treatment on the cutting position while the laser cutting head 36 performs cutting on the inner and outer rings of the bearing. Through this dynamic cooperative operation, the deformation problem of the bearing cutting position is effectively inhibited, and the processing quality of the bearing is significantly improved.

[0056] Embodiment two: refer to Figure 7 On the basis of embodiment one, in order to increase the application scope of the application, the application can also cut bearings of different thicknesses. Specifically, the adjusting plate 231 is sleeved on the end face of the horizontal section of the inner supporting plate 23, the limiting rod 232 is inserted into the adjusting plate 231, a plurality of limiting holes 233 matched with the limiting rod 232 are uniformly arranged on the horizontal section of the inner supporting plate 23 along the length direction, and the roller 234 is rotatably installed on the side of the adjusting plate 231 away from the inner supporting plate 23.

[0057] Specifically, when the thickness of the bearing changes, the limiting block 25 still moves along the preset track, 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 can be adjusted according to the actual distance between the adjusting plate 231 and the inner ring of the bearing, so that the roller 234 tightly abuts against the inner ring of the bearing. Then, the limiting rod 232 is inserted into the limiting hole 233 through the adjusting plate 231, so that the adjusting plate 231 and the inner support plate 23 are relatively fixed. The roller 234 can reduce the friction between the adjusting plate 231 and the inner ring of the bearing, and protect the inner ring of the bearing.

[0058] The adjusting mechanism can accurately compensate for the change in the distance from the inner support plate 23 to the inner ring of the bearing, ensure that bearings of different thicknesses can be stably supported, and significantly expand the application range of the device, realizing compatible processing of bearings of multiple specifications.

[0059] Finally, with reference to Figure 8 The application also provides a bearing inner and outer ring double-beam laser cutting method, which comprises the following steps: S1: placing and processing, the cutting rack 32 is pulled off through the support rod 31, and then the bearing is placed on the bearing support seat 22.

[0060] S2: limiting processing, the lifting block 29 moves downward, and the limiting groove 291 cooperates with the circular table surface to drive the linkage rod 20 to move synchronously. At this time, due to the blockage of the limiting groove 291, the linkage rod 20 drives the horizontal section below the inner support plate 23 to move on the cutting base 1 towards the bearing side. The horizontal section above the inner support plate 23 can provide internal support for the bearing during the movement of the inner support plate 23.

[0061] Then, the rotating shaft 21 is driven to rotate by the existing driving force (motor, etc.), and the rotating shaft 21 rotates to wind the traction rope 26. During the winding of the traction rope 26, the adjusting block 24 moves towards the side of the rotating shaft 21, and the return spring rod 27 is stretched. During the movement of the adjusting block 24, the limiting block 25 abuts against the outer ring of the bearing, and the limiting block 25 can clamp and limit the outer ring of the bearing, so that the bearing and the rotating shaft 21 have the same center.

[0062] S3: cutting processing, the bearing rotates, and the inner and outer rings of the bearing are cut by the double laser cutting head 36.

[0063] S4: collection processing, after the cutting of the inner and outer rings of the bearing is completed, the inner support plate 23 and the limiting block 25 are reset, the cutting rack 32 is removed through the support rod 31, and then the bearing is taken out.

[0064] It will be obvious to a person skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments and can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. The embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims to the identity of the reference signs therein.

[0065] Furthermore, it should be understood that although the description is made on the basis of the embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and 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 those skilled in the art can understand.

Claims

1. A dual-beam laser cutting device for bearing inner and outer rings, comprising a cutting base (1), characterized in that: 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 on the cutting base (1), wherein the cutting mechanism (3) includes: Two support rods (31) are provided and are located on both sides of the bearing and symmetrically distributed in the length direction of the cutting base (1), and are plugged into the cutting base (1). A cutting frame (32) is installed on the two support rods (31); Two moving blocks (33) are provided and are symmetrically arranged along the length direction of the cutting frame (32). The moving blocks (33) are arranged inside and outside the bearing and are slidably installed on the cutting frame (32). A vertical plate (34) is mounted at the middle of the top of the cutting frame (32), and a bidirectional screw (35) is rotatably mounted on the vertical plate (34) through a bearing, and both ends of the bidirectional screw (35) are mounted on the corresponding side moving block (33) through a threaded connection; Two laser cutting heads (36) are provided and mounted on the bottom of the moving block (33) on corresponding sides.

2. The dual-beam laser cutting equipment for bearing inner and outer rings according to claim 1, characterized in that: The moving block (33) is symmetrically provided with connecting plates (331) along the width direction of the cutting frame (32), and the connecting plates (331) are installed on the corresponding sides of the moving block (33). A pressing roller (332) for pressing the bearing is rotatably installed on the connecting plate (331) through the bearing.

3. The dual-beam laser cutting equipment for bearing inner and outer rings according to claim 1, characterized in that: The limiting mechanism (2) includes a rotating shaft (21) rotatably mounted on the middle of the cutting base (1) through a bearing, a plurality of supporting seats (22) are evenly arranged on the cutting base (1) along the circumference of the rotating shaft (21), and a plurality of inner support plates (23) corresponding to the supporting seats (22) are also provided on the cutting base (1) for limiting sliding.

4. The dual-beam laser cutting equipment for bearing inner and outer rings according to claim 3, characterized in that: A through groove corresponding to the supporting seat (22) is opened on the cutting base (1), an adjusting block (24) is installed inside the through groove, and the supporting seat (22) is installed on the adjusting block (24), and a limiting block (25) for clamping the outside of the bearing is installed on the supporting seat (22).

5. The dual-beam laser cutting equipment for bearing inner and outer rings according to claim 4, characterized in that: The bottom of the rotating shaft (21) passes through the cutting base (1), and a traction rope (26) is provided between the portion 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 mounted on the adjusting block (24), and the end of the traction rope (26) away from the adjusting block (24) is wound around the rotating shaft (21). The bottom of the cutting base (1) is provided with a fixed protrusion corresponding to the adjusting block (24), and a return spring rod (27) is installed between the fixed protrusion and the corresponding adjusting block (24).

6. The dual-beam laser cutting equipment for bearing inner and outer rings according to claim 4, characterized in that: The limiting block (25) and the supporting seat (22) are both rotatably mounted with rollers (251) that match the bearings.

7. The dual-beam laser cutting equipment for bearing inner and outer rings according to claim 3, characterized in that: The inner support plate (23) is a Z-shaped structure. The horizontal section below the inner support plate (23) is limitedly slidably arranged on the cutting base (1). The cutting base (1) is provided with a fixed connecting block corresponding to 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).

8. The dual-beam laser cutting equipment for bearing inner and outer rings according to claim 3, characterized in that: A lifting block (29) is mounted on the rotating shaft (21) by means of a threaded connection. A circular table is provided at the bottom of the lifting block (29). A linkage rod (20) is mounted on the horizontal section below the inner support plate (23). A limiting groove (291) matching the linkage rod (20) is provided on the circular table, and the linkage rod (20) is slidably arranged inside the limiting groove (291).

9. The dual-beam laser cutting equipment for bearing inner and outer rings according to claim 3, characterized in that: An adjustment plate (231) is sleeved on the end surface of the horizontal section above the inner support plate (23), a limit rod (232) is inserted into the adjustment plate (231), and a plurality of limit holes (233) matching the limit rods (232) are evenly opened on the horizontal section above the inner support plate (23) along its length direction. A roller (234) is rotatably installed on the side of the adjustment plate (231) away from the inner support plate (23).

10. A dual-beam laser cutting method for bearing inner and outer rings, comprising a dual-beam laser cutting device for bearing inner and outer rings according to any one of claims 1 to 9, characterized in that: The method of use includes the following steps: S1: Placement processing, pull out the cutting frame (32) through the support rod (31), and then place the bearing on the support seat (22); S2: limiting treatment, the bearing is supported internally by the inner support plate (23) and the bearing is clamped externally by the limiting block (25); S3: cutting process, cutting the inner and outer rings of the bearing by using a dual laser cutting head (36); S4: Collection and processing: After the cutting of the inner and outer rings of the bearing is completed, the cutting frame (32) is removed through the support rod (31), and then the bearing is taken out.

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