Cutting device for aerospace aluminum profile

Abstract

The utility model discloses a cutting device for aluminium profile for aerospace, include: frame, including support frame, support groove, the close arrangement of the ball that protrudes on the two side walls of support groove, intercepting subassembly, cutting assembly, including pressure unit and cutting unit, and cutting unit includes translational mechanism and laser head, and pressure unit includes telescopic mechanism, roller frame and press roll, and pressure unit is provided with at least one, and cutting assembly still includes rotating unit, and rotating unit drives one of press roll rotation. The cutting device for aluminium profile for aerospace is through pressure unit and is pressed tightly on the aluminium profile of ball support, and cooperation rotating unit drives press roll rotation, makes the aluminium profile rotation around the own axial line, utilizes laser head to cut the aluminium profile of rotation, improves cutting accuracy, and through translational mechanism drives laser head to remove, changes cutting position, and the convenient formation different angle's incision and cutting different length, expands the scope of application, alleviates the worker's burden, improves cutting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of aluminum profile processing technology, and in particular to a cutting device for aerospace aluminum profiles. Background Technology

[0002] Aerospace-grade aluminum profiles are typically made of 7075, 6082, or 2024 aluminum alloys. Compared to ordinary aluminum profiles, they offer advantages such as lightweight, high strength and toughness, and corrosion resistance, making them suitable for manufacturing aircraft fuselages, wings, landing gear, and other components. During the production process, aerospace-grade aluminum alloy profiles are usually extruded into various shapes, including cylindrical tubes, depending on the application requirements. Compared to other profiles with rectangular, I-shaped, or irregular cross-sections, their core advantages lie in their adaptability to mechanical properties, space utilization, and process compatibility, perfectly matching the rigid requirements of aerospace missions for "lightweight, high reliability, and low maintenance costs."

[0003] Aluminum profiles typically require cutting during processing. For example, Chinese utility model patent with publication number CN223160142U discloses a 45-degree sawing device. This sawing device uses a first saw blade and a second saw blade to cut at 45 degrees and 90 degrees respectively. The appropriate saw blade can be used according to the actual sawing requirements, thereby improving the utilization rate of the sawing device.

[0004] However, this device uses a saw blade for cutting, and the high-speed rotation of the saw blade can easily cause trajectory deviation due to "vibration and wear," reducing the cutting quality. In addition, the cutting process can easily generate high heat through friction, causing thermal deformation of the aluminum profile at the cutting point. Furthermore, burrs are easily left at the cut point after cutting, further reducing the cutting accuracy. Moreover, this device is only suitable for 45-degree and 90-degree cutting methods, which limits its applicability. In addition, when cutting aerospace aluminum profiles of different lengths, workers need to adjust the cutting position and fix the aluminum profile before cutting, increasing the workload of workers and reducing cutting efficiency.

[0005] Therefore, it is necessary to improve the existing aerospace-grade cylindrical aluminum profile cutting equipment. Utility Model Content

[0006] The purpose of this utility model is to overcome the defects in the existing technology and provide a cutting device for aerospace aluminum profiles that reduces the burden on workers, improves cutting efficiency and accuracy, and expands the scope of application.

[0007] To achieve the above-mentioned technical effects, the technical solution of this utility model is: a cutting device for aerospace aluminum profiles, comprising: The frame includes a support frame and a support groove fixed above the support frame and extending downward at an incline. The support groove is a through groove with its opening facing upward and has balls protruding from its two side walls and arranged closely along its own length. The balls rotate around their own center. An interception component is used to intercept the aluminum profile on the support groove before the cutting is completed, and to release the cut portion of the aluminum profile on the support groove after the cutting is completed; A cutting assembly includes a clamping unit and a cutting unit distributed along the length direction parallel to the support groove. The cutting unit includes a translation mechanism and a laser head. The laser head is located directly above the support groove and facing the groove opening. The translation mechanism is mounted on the support frame and drives the laser head to move along the length direction parallel to the support groove. The clamping unit includes a telescopic mechanism, a roller frame, and a pressure roller. The telescopic mechanism is mounted on the support frame and drives the roller frame to move along a direction perpendicular to the length direction of the support groove. The axial direction of the pressure roller is parallel to the length direction of the support groove and rotates about its own axis directly above the support groove. At least one clamping unit is provided. The cutting assembly also includes a rotating unit that drives one of the pressure rollers to rotate.

[0008] Preferably, in order to further ensure the clamping effect on the aluminum profile and keep the position of its axis fixed during rotation, thereby improving the cutting accuracy, two clamping units are provided, which are respectively located on the feed groove and the discharge side of the cutting unit.

[0009] Preferably, in order to ensure the clamping force on the aluminum profile, an elastic element is also provided between the output end of the telescopic mechanism and the roller frame in the two clamping units.

[0010] Preferably, to facilitate the sliding of a small portion of the cut aluminum profile down the inclined support groove after cutting, while the remaining portion is fixed on the support groove to prevent it from falling, before the aluminum profile on the support groove is pressed by the two pressing units, the interval between the pressure roller of the pressing unit located in the feed groove of the cutting unit and the aluminum profile is the feeding interval, and the interval between the pressure roller of the pressing unit located on the discharge side of the cutting unit and the aluminum profile is the discharge interval, wherein the feeding interval is smaller than the discharge interval.

[0011] Preferably, in order to ensure that the aluminum profile on the support groove can be driven to rotate synchronously by the rotation of the pressure roller near the feed side when the rotating unit is running, the rotating unit is driven to connect with the pressure roller in the feed groove pressing unit of the cutting unit.

[0012] Preferably, in order to facilitate cutting different lengths and forming cuts at different angles, and to expand the range of applications, the laser head is also fixedly connected to a first distance sensor for detecting the translational position of the laser head.

[0013] Preferably, in order to intercept the aluminum profile and release the cut aluminum profile, the interception assembly includes a moving unit and an interception plate. The moving unit drives the interception plate to move in a direction perpendicular to the length direction of the support groove, and the surface of the interception plate is parallel to the length direction of the support groove.

[0014] Preferably, in order to reduce the frictional force experienced by the aluminum profile during rotation, the interceptor plate rotates at the output end of the moving unit and the rotation axis is parallel to the length direction of the support groove. The interceptor assembly also includes a second distance sensor for detecting the interception distance of the interceptor plate.

[0015] Preferably, in order to ensure the smoothness of the ball surface and reduce the friction between the ball and the aluminum profile, the ball is detachably mounted on the support groove.

[0016] Preferably, to facilitate the disassembly of the ball bearings, recesses are provided on both sides of the support groove. An upper pressure plate and a lower pressure plate are provided in the recesses. The upper pressure plate and the lower pressure plate are fixedly connected to the side wall of the support groove by threaded bolts and nuts. The upper pressure plate and the lower pressure plate are respectively provided with an upper through hole and a lower blind hole. The ball bearings are sealed and fitted with the inner wall of the upper through hole and the inner wall of the lower blind hole.

[0017] In summary, compared with existing technologies, the cutting device for aerospace aluminum profiles of this utility model uses a clamping unit to clamp the aluminum profile supported on the ball bearings, and a rotating unit to drive the pressure roller to rotate. This allows the aluminum profile to rotate around its own axis while the laser head cuts the rotating aluminum profile, improving cutting accuracy. Furthermore, the translation mechanism moves the laser head to change the cutting position, facilitating the formation of cuts at different angles and cutting different lengths, expanding the scope of application, reducing the workload of workers, and improving cutting efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure; Figure 3 yes Figure 2 Enlarged view of part A; Figure 4 This is a structural schematic diagram of the frame and interception components of this utility model; Figure 5 yes Figure 4 An explosion diagram; Figure 6 This is a schematic diagram of the connection structure between the upper pressure plate, the lower pressure plate, and the ball bearings of this utility model; Figure 7 yes Figure 6An explosion diagram; Figure 8 This is a partial structural schematic diagram of the cutting component of this utility model; Figure 9 yes Figure 8 An explosion diagram; Figure 10 This is a schematic diagram of the cutting unit of this utility model; In the diagram: 1. Frame; 11. Support frame; 111. Ramp; 112. Leg; 113. Side plate; 114. Guide rod; 12. Support groove; 121. Notch; 13. Ball bearing; 14. Support rod; 15. Upper pressure plate; 151. Upper through hole; 16. Lower pressure plate; 161. Lower blind hole; 17. Bolt; 18. Nut; 2. Interception assembly; 21. Moving unit; 211. Moving frame; 22. Interception plate; 221. Bearing; 23. Second distance sensor; 3. Clamping unit; 31. Telescopic mechanism; 32. 33. Roller frame; 34. Pressure roller; 35. Elastic element; 4. Slide rod; 4. Cutting unit; 41. Translation mechanism; 411. Translation motor; 412. Screw; 413. Bushing; 414. Screw sleeve; 415. Translation block; 42. Laser head; 43. First distance sensor; 5. Rotation unit; 51. Rotation motor; 52. Drive wheel; 53. Driven wheel; 54. Synchronous belt; 6. Positioning frame; 61. Slide opening; 7. Collection box; 8. Aluminum profile; 9. Pressing frame; 91. Guide tube; 92. Pressure strip; 93. Pressing plate. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0020] like Figures 1-10 As shown, the present invention discloses a cutting device for aerospace aluminum profiles, comprising: The frame 1 includes a support frame 11 and a support groove 12 fixed above the support frame 11 and extending downward at an incline. The support groove 12 is a through groove with its opening facing upward and has balls 13 closely arranged along its own length protruding from its two side walls. The balls 13 rotate around their own center. The interception component 2 is used to intercept the aluminum profile 8 on the support groove 12 before the cutting is completed, and to release the cut portion of the aluminum profile 8 on the support groove 12 after the cutting is completed. The cutting assembly includes a pressing unit 3 and a cutting unit 4 distributed along the length direction parallel to the support groove 12. The cutting unit 4 includes a translation mechanism 41 and a laser head 42. The laser head 42 is located directly above the support groove 12 and facing the opening of the support groove 12. The translation mechanism 41 is mounted on the support frame 11 and drives the laser head 42 to move along the length direction parallel to the support groove 12. The pressing unit 3 includes a telescopic mechanism 31, a roller frame 32, and a pressure roller 33. The telescopic mechanism 31 is mounted on the support frame 11 and drives the roller frame 32 to move along the direction perpendicular to the length direction of the support groove 12. The axial direction of the pressure roller 33 is parallel to the length direction of the support groove 12 and rotates around its own axis directly above the support groove 12. The pressing unit 3 is provided with at least one. The cutting assembly also includes a rotating unit 5, which drives one of the pressure rollers 33 to rotate.

[0021] When using the device, an aluminum profile 8 with a circular cross-section (hereinafter referred to as "aluminum profile 8") is placed on the support groove 12 of the frame 1. The aluminum profile 8 is supported by the closely arranged ball bearings 13 on both sides of the support groove 12. Since the support groove 12 is inclined downward, the aluminum profile 8 slides down to contact the interception component 2. The support groove 12 is a through groove. The higher end is the feeding end, which is used to put the aluminum profile 8 to be cut. The lower end is the discharging end. The interception component 2 is adjacent to the discharging end. The discharging end facilitates the discharge of the cut part of the aluminum profile 8 after cutting.

[0022] The aluminum profile 8 is intercepted by the interception component 2 before the cutting is completed, so that the axial direction of the aluminum profile 8 is consistent with the length direction of the support groove 12. Under the influence of its own gravity separation, the bottom end of the aluminum profile 8 moves towards the interception component 2. Then the cutting component runs. When the cutting component runs, the telescopic mechanism 31 first drives the roller frame 32 to move downward towards the support groove 12, so that the pressure roller 33 abuts against the aluminum profile 8. Together with the ball bearings 13 on both sides of the inner wall of the support groove 12 below, the centerline position of the aluminum profile 8 is fixed.

[0023] Then, maintaining the above state, the rotating unit 5 controls one of the pressure rollers 33 to rotate. Through the friction between the pressure roller 33 and the aluminum profile 8, the aluminum profile 8 is driven to rotate around its own axis. Since the outer edge of the aluminum profile 8 is in contact with the balls 13 on both sides of the support groove 12 and the outer edge of the upper pressure roller 33, the aluminum profile 8 can maintain stable rotation.

[0024] When the aluminum profile 8 is rotating, a laser beam is irradiated by the laser head 42 in the cutting unit 4 in a direction perpendicular to the axis of the aluminum profile 8 to cut the aluminum profile 8. Compared with the traditional saw blade cutting method, this utility model uses laser cutting, which has better cutting accuracy and the cutting trajectory can be guaranteed to be free of "offset error". It is especially suitable for high-precision cutting of aerospace profiles. Moreover, the cut formed by the laser is smooth and the surface is free of serrated lines and burrs. Therefore, no subsequent grinding is required, avoiding dimensional deviations caused by wear due to further processing. In addition, when using laser cutting, low temperature gas can be introduced towards the cutting part to assist the cutting and avoid thermal stress deformation of the aluminum profile, thus further improving the cutting accuracy.

[0025] Furthermore, the cutting unit 4 also includes a translation mechanism 41. The translation mechanism 41 can adjust the position of the laser head 42 before and during cutting. When the position of the laser head 42 is adjusted before cutting and kept fixed while the aluminum profile 8 rotates, it can cut aluminum profiles 8 of different lengths. During the rotation of the aluminum profile 8, by continuously adjusting the position of the laser head 42, different cuts can be formed. For example, during the rotation of the aluminum profile 8, the rapid reciprocating motion of the laser head 42 can form a sharper cut. Therefore, compared to the prior art, the cutting device of this invention can cut different lengths and achieve cuts at different angles, expanding its applicability.

[0026] After cutting is completed, the interceptor component 2 performs a release operation, allowing the cut portion of the aluminum profile 8 to slide down along the discharge end and out of the support groove 12, so that the remaining part of the aluminum profile 8 can continue to be cut. In this way, there is no need for workers to deliberately adjust the cutting length and cutting position, which greatly reduces the workload of the operators and helps to improve cutting efficiency.

[0027] A further improvement is that there are two clamping units 3, which are respectively located on the feed chute and the discharge side of the cutting unit 4. In addition, an elastic element 34 is provided between the output end of the telescopic mechanism 31 and the roller frame 32 in the two clamping units 3.

[0028] By adopting the above structure, on the one hand, the number of pressing units 3 is increased, which ensures the contact area between the pressure roller 33 and the aluminum profile 8. This helps to ensure that the aluminum profile 8 can maintain its axis position when rotating, thereby improving the cutting accuracy. Moreover, an elastic element 34 is provided between the output end of the telescopic mechanism 31 and the roller frame 32. The elastic element 34 applies pressure to the pressure roller 33, which increases the pressure between the pressure roller 33 and the aluminum profile 8. This further ensures the friction between the pressure roller 33 and the aluminum profile 8, realizes the synchronous rotation of the pressure roller 33 and the aluminum profile 8, and improves the cutting accuracy.

[0029] A further improvement is that, in the two pressing units 3, the distance between the pressing roller 33 of the pressing unit 3 located in the pressing support groove 12 of the cutting unit 4 and the aluminum profile 8 is the feeding interval, and the distance between the pressing roller 33 of the pressing unit 3 located on the discharge side of the cutting unit 4 and the aluminum profile 8 is the discharge interval. The feeding interval is smaller than the discharge interval.

[0030] After this design is adopted, once the aluminum profile 8 is cut, the intercepting component 2 releases the material, and the telescopic mechanism 31 drives the roller frame 32 to move upward. This causes the pressure roller 33 in the discharge-side pressing unit 3 to first disengage from the cut portion of the aluminum profile 8, while the remaining portion of the aluminum profile 8 is still pressed between the balls 13 on both sides of the support groove 12 by the pressure roller 33 in the feed-side pressing unit 3. In this way, the cut portion of the aluminum profile 8 can slide out of the discharge end of the support groove 12, and then the intercepting component 2 intercepts it, and the telescopic mechanism 31... The roller frame 32 continues to move upward, causing the pressure roller 33 in the feeding side pressing unit 3 to detach from the remaining part of the aluminum profile 8. This allows the remaining part of the aluminum profile 8 to follow the support groove 12 and, under the contact and rolling action of the ball 13, contact the interception component 2. Then, the telescopic mechanism 31 drives the roller frame 32 to descend, so that the pressure rollers 33 in both pressing units 3 contact the outer wall of the aluminum profile 8. The aluminum profile 8 is pressed between the ball 13 and the pressure roller 33. The rotation unit 5 drives the pressure roller 33 to rotate, thus realizing the rotation of the aluminum profile 8.

[0031] A further improvement is that the rotating unit 5 is driven to connect with the pressure roller 33 located in the feeding groove pressing unit 3 of the cutting unit 4. Compared with the pressure roller 33 in the discharge side pressing unit 3 of the cutting unit 4, the pressure roller 33 in the feeding groove pressing unit 3 of the cutting unit 4 exerts greater pressure on the aluminum profile 8, which is more conducive to ensuring the friction between the two, so that when the rotating unit 5 drives the pressure roller 33 to rotate, the aluminum profile 8 can be rotated synchronously.

[0032] Specifically, in this utility model, such as Figure 1 and Figure 5 As shown, the support frame 11 in the frame 1 includes a ramp 111 and several legs 112 fixed to the bottom surface of the ramp 111. The legs 112 are fixed above the ground. The bottom of the support groove 12 is fixed to the top surface of the ramp 111 by a support rod 14. The length direction of the support groove 12 is consistent with the length direction of the top surface of the ramp 111, and the width direction of the support groove 12 is consistent with the width direction of the top surface of the ramp 111.

[0033] Side plates 113 are integrally connected to both sides of the top surface of the ramp 111 near the discharge end. The top surface of the side plates 113 is on the same plane as the top surface of the ramp 111. A guide rod 114 is fixed above the side plates 113, and the axis of the guide rod 114 is perpendicular to the top surface of the side plates 113.

[0034] An inverted U-shaped positioning frame 6 is fixed above the two side plates 113. The positioning frame 6 extends along the length direction parallel to the support groove 12. The top surface of the positioning frame 6 is provided with a sliding opening 61 that extends along the length direction parallel to the support groove 12 and is in the form of a through hole.

[0035] More specifically, such as Figure 8 and Figure 9 As shown, four telescopic mechanisms 31 are provided. The telescopic mechanism 31 is a telescopic hydraulic cylinder. Its cylinder is fixed at the end of the inner wall of the positioning frame 6 and its axis is perpendicular to the length direction of the support groove 12. The piston rod is fixedly connected to the clamping frame 9. The clamping frame 9 includes clamping strips 92 that are respectively disposed on both sides of the support groove 12 and extend along the length direction parallel to the support groove 12. The two ends of the clamping strips 92 are fixedly connected to the guide tubes 91. The guide tubes 91 are slidably sleeved on the upper part of the guide rod 114. There are four guide tubes 91 in total. Two of them are located on the discharge side of the cutting unit 4 and are fixedly connected to the clamping plate 93, which are correspondingly connected to the discharge side clamping unit 3. The other two are located on the feed side of the cutting unit 4 and are fixedly connected to the clamping plate 93, which are correspondingly connected to the feed side clamping unit 3. The plate surface of the clamping plate 93 is parallel to the top surface of the slope 111.

[0036] The clamping unit 3 also includes a slide bar 35, which is fixed above the roller frame 32 and its axis is perpendicular to the top surface of the slope 111. The elastic element 34 is a compression spring sleeved on the slide bar 35, with its two ends connected to the clamping plate 93 and the roller frame 32, respectively.

[0037] The rotating unit 5 is connected to the pressing unit 3 on the feeding side of the cutting unit 4. Specifically, the rotating unit 5 includes a rotating motor 51, a driving wheel 52, a driven wheel 53, and a synchronous belt 54. The rotating motor 51 is fixed on the roller frame 32 and its output end is fixedly connected to the driving wheel 52 along the same axis. The driving wheel 52 is connected to the driven wheel 53 through the synchronous belt 54. The driven wheel 53 is fixedly connected to the pressure roller 33 along the same axis.

[0038] With this structure, the rotary motor 51 starts and drives the drive wheel 52 to rotate. The drive wheel 52 drives the driven wheel 53 to rotate through the synchronous belt 54, which in turn drives the pressure roller 33 to rotate, so that the aluminum profile 8, which is pressed between the pressure roller 33 and the ball bearings 13 on both sides by the pressure spring, rotates.

[0039] In order to achieve a feeding interval that is smaller than the discharging interval, in this utility model, the outer diameter of the pressure roller 33 on the feeding side of the cutting unit 4 is larger than the outer diameter of the other pressure roller 33. Before cutting, the pressure rollers 33 on both sides of the cutting unit 4 are coaxial.

[0040] The interception component 2 has a collection box 7 with an open top on the side facing away from the discharge end, which is used to collect the aluminum profile 8 that slides down from the discharge end after the interception component 2 is released.

[0041] A further improvement is that the laser head 42 is also fixedly connected to a first distance sensor 43, which is used to detect the translational position of the laser head 42.

[0042] Specifically, such as Figure 3 and Figure 4 As shown, in the cutting unit 4, the translation mechanism 41 includes a translation motor 411 and a bushing 413 fixed above the positioning frame 6. The output end of the translation motor 411 is fixedly connected to a screw 412 along the coaxial centerline. The axial direction of the screw 412 is consistent with the length direction of the support groove 12. The end of the screw 412 away from the translation motor 411 rotates to the inner side of the bushing 413. The screw 412 is externally threaded to a threaded sleeve 414. A translation block 415 that slides on the inner side of the slide 61 is fixed below the threaded sleeve 414. The laser head 42 is fixed below the translation block 415. The first distance sensor 43 is fixed on the translation block 415 and faces the inner wall of one end of the slide 61.

[0043] With the above structure, the screw 412 is driven by the translation motor 411 to rotate under the guidance of the bushing 413. The screw 412 acts on the screw sleeve 414 through the thread. Under the sliding cooperation of the translation block 415 and the slide 61, the translation block 415 moves along the length direction parallel to the support groove 12 to adjust the position of the laser head 42. The position of the translation block 415 and the inner wall of the end of the slide 61 is detected by the first distance sensor 43, which can then detect the position of the laser head 42, making it convenient to adjust it through the translation mechanism 41 and improve the cutting accuracy.

[0044] A further improvement is that the interception assembly 2 includes a moving unit 21 and an interception plate 22. The moving unit 21 drives the interception plate 22 to move in a direction perpendicular to the length direction of the support groove 12, and the plate surface of the interception plate 22 is parallel to the length direction of the support groove 12. The interception plate 22 rotates at the output end of the moving unit 21 and the rotation axis is parallel to the length direction of the support groove 12. The interception assembly 2 also includes a second distance sensor 23 for detecting the distance position of the interception plate 22.

[0045] This design allows the second distance sensor 23 to detect the height position of the interceptor plate 22 before rotation, ensuring that the rotation axis of the interceptor plate 22 coincides with the rotation axis of the aluminum profile 8 on the support groove 12. This facilitates the rotation of the aluminum profile 8 under the action of the rotating pressure roller 33, allowing the interceptor plate 22 to rotate simultaneously with the aluminum profile 8, and ensuring that their rotation axes are aligned. This reduces the friction during the rotation of the aluminum profile 8, making it easier to rotate and improving cutting accuracy.

[0046] Specifically, such as Figure 4 and Figure 5As shown, the moving unit 21 is an electric push rod, the bottom of which is fixed to the ground and the axis is perpendicular to the top surface of the slope 111. An L-shaped moving frame 211 is fixed to the top. A concentric ring is integrally connected to the side of the intercepting plate 22 facing away from the support groove 12. A bearing 221 is provided between the concentric ring and the moving frame 211. The outer ring of the bearing 221 is fixed to the inner side of the concentric ring, and the inner ring is fixed to the moving frame 211. The second distance sensor 23 is set on the outer shell of the electric push rod and faces the moving frame 211 so as to detect the position of the intercepting plate 22 and adjust the position of the axis of the intercepting plate 22 and the bearing 221.

[0047] The ball bearing 13 is detachably mounted on the support groove 12. This design facilitates the replacement of the ball bearing 13, especially after long-term use when the surface of the ball bearing 13 is worn. Replacing the ball bearing 13 ensures the smoothness of the surface of the ball bearing 13, guarantees the stable rotation and sliding of the aluminum profile 8, and ensures that its axis is always parallel to the length direction of the support groove 12 and that the axis position is fixed.

[0048] Specifically, such as Figure 4 , Figure 6 and Figure 7 As shown, recesses 121 are provided on both side walls of the support groove 12. Multiple recesses 121 are distributed along the length of the support groove 12. An upper pressure plate 15 and a lower pressure plate 16 are installed within each recess 121. The upper pressure plate 15 and the lower pressure plate 16 are fixedly connected to the side walls of the support groove 12 by threaded bolts 17 and nuts 18. The upper pressure plate 15 and the lower pressure plate 16 are respectively provided with an upper through hole 151 and a lower blind hole 161. The ball bearing 13 is sealed and fitted against the inner walls of the upper through hole 151 and the lower blind hole 161. The pressure plate formed by the combination of the upper pressure plate 15 and the lower pressure plate 16 is adapted to the recess 121. This facilitates the replacement of the ball bearing 13.

[0049] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A cutting device for aerospace aluminum profiles, characterized in that, include: The frame includes a support frame and a support groove fixed above the support frame and extending downward at an incline. The support groove is a through groove with its opening facing upward and has balls protruding from its two side walls and arranged closely along its own length. The balls rotate around their own center. An interception component is used to intercept the aluminum profile on the support groove before the cutting is completed, and to release the cut portion of the aluminum profile on the support groove after the cutting is completed; A cutting assembly includes a clamping unit and a cutting unit distributed along the length direction parallel to the support groove. The cutting unit includes a translation mechanism and a laser head. The laser head is located directly above the support groove and facing the groove opening. The translation mechanism is mounted on the support frame and drives the laser head to move along the length direction parallel to the support groove. The clamping unit includes a telescopic mechanism, a roller frame, and a pressure roller. The telescopic mechanism is mounted on the support frame and drives the roller frame to move along a direction perpendicular to the length direction of the support groove. The axial direction of the pressure roller is parallel to the length direction of the support groove and rotates about its own axis directly above the support groove. At least one clamping unit is provided. The cutting assembly also includes a rotating unit that drives one of the pressure rollers to rotate.

2. The cutting device for aerospace aluminum profiles according to claim 1, characterized in that: Two clamping units are provided, located on the feed chute and discharge side of the cutting unit, respectively.

3. The cutting device for aerospace aluminum profiles according to claim 2, characterized in that: In both clamping units, an elastic element is also provided between the output end of the telescopic mechanism and the roller frame.

4. The cutting device for aerospace aluminum profiles according to claim 3, characterized in that: Before the aluminum profile on the support groove is pressed by the two pressing units, the interval between the pressure roller of the pressing unit located in the feed groove of the cutting unit and the aluminum profile is the feeding interval, and the interval between the pressure roller of the pressing unit located on the discharge side of the cutting unit and the aluminum profile is the discharge interval. The feeding interval is smaller than the discharge interval.

5. The cutting device for aerospace aluminum profiles according to claim 4, characterized in that: The rotating unit is driven and connected to the pressure roller in the pressing unit of the feed trough of the cutting unit.

6. The cutting device for aerospace aluminum profiles according to any one of claims 1-5, characterized in that: The laser head is also fixedly connected to a first distance sensor, which is used to detect the translational position of the laser head.

7. The cutting device for aerospace aluminum profiles according to any one of claims 1-5, characterized in that: The interception assembly includes a moving unit and an interception plate. The moving unit drives the interception plate to move in a direction perpendicular to the length direction of the support groove, and the surface of the interception plate is parallel to the length direction of the support groove.

8. The cutting device for aerospace aluminum profiles according to claim 7, characterized in that: The interceptor plate rotates at the output end of the moving unit and the rotation axis is parallel to the length direction of the support groove. The interception assembly also includes a second distance sensor for detecting the interception distance of the interceptor plate.

9. The cutting device for aerospace aluminum profiles according to any one of claims 1-5, characterized in that: The ball bearing is detachably mounted on the support groove.

10. The cutting device for aerospace aluminum profiles according to claim 9, characterized in that: The support groove has recesses on both sides, and an upper pressure plate and a lower pressure plate are installed in the recesses. The upper pressure plate and the lower pressure plate are fixedly connected to the side wall of the support groove by threaded bolts and nuts. The upper pressure plate and the lower pressure plate are respectively provided with an upper through hole and a lower blind hole. The ball bearing is sealed and fitted with the inner wall of the upper through hole and the inner wall of the lower blind hole.

Images