A three-dimensional profile laser cutting device

Abstract

The present invention relates to the field of laser cutting technology, and discloses a three-dimensional profile laser cutting device, including a base frame, a three-dimensional cutting mechanism movably provided on the base frame, and a conveying mechanism provided at both ends of the base frame. The three-dimensional cutting mechanism includes a movable frame and a displacement cutting mechanism, the movable frame moves horizontally and left and right on the base frame, and a plurality of displacement cutting mechanisms respectively move in a circular manner on the movable frame, and the profile passes through the through hole on the movable frame and is conveyed by the conveying mechanism. The three-dimensional laser cutting device of the present invention breaks through the limitations of traditional fixed workstations and simple multi-axis linkage structures, and realizes precise cutting of complex curved profiles through the integration of a multi-dimensional motion mechanism and an adaptive conveying system. The device relies on the linkage of an annular drive ring table and a multi-displacement cutting mechanism, and can rotate around the profile for cutting, and cooperate with the angle fine-tuning of the turntable and the folding plate to solve the problems of the traditional device with a single cutting dimension and insufficient posture adjustment accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting, and in particular to a three-dimensional profile laser cutting device. Background Art

[0002] The three-dimensional laser cutting device is an advanced equipment that uses laser technology to perform precise cutting processing on three-dimensional workpieces. It is mainly composed of a laser generation system, a beam transmission system, a cutting head, a motion control system, a control system, etc. The laser melts the metal workpiece and relies on strong pressure to expel gas from the liquid metal, thereby forming an incision. It has the advantages of high cutting accuracy, fast cutting speed, strong flexibility, and good processing quality. It is widely used in the automotive manufacturing industry, aerospace field, and machinery manufacturing industry.

[0003] Existing 3D laser cutting devices usually adopt fixed workstations or simple multi-axis linkage structures. Although they can realize basic 3D cutting movements, they have significant limitations when processing complex curved profiles (such as cylindrical, conical, spiral surfaces, etc.); on the one hand, the cutting head of traditional devices has a single movement dimension and relies mostly on linear movement of the XYZ axes. It lacks the ability to perform circular cutting around the profile and has difficulty completing multi-angle cutting tasks such as circular holes and special-shaped holes; on the other hand, its cutting posture adjustment accuracy is insufficient, and it is impossible to optimize the cutting angle in real time according to changes in the profile cross-section, resulting in poor incision quality and high scrap rate when processing complex profiles.

[0004] A Chinese patent has published an integrated three-dimensional laser cutting and welding device for special-shaped tubes (publication number: CN118321720A). It drives the sliding block to reciprocate in the guide rail, driving the fixed frame and the clamping frame to move to clamp the special-shaped tube. After clamping, it is processed using the cutting and welding device. During the processing, the second motor is started to rotate the drive gear, drive the gear ring and the slip ring to rotate, thereby assisting the rotation of the special-shaped tube, and cooperating with the cutting and welding device for welding or cutting. The design of this device is suitable for pipes with smaller diameters. It is not suitable for pipes with larger diameters, especially plates, square tubes, channel steels, I-beams and other profiles. Moreover, since the cutting and displacement operation is performed by rotating the pipe, it is not suitable for continuous operation of long pipes. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a three-dimensional profile laser cutting device.

[0006] In order to solve the above technical problems, the present invention provides a technical solution as follows: a three-dimensional profile laser cutting device, comprising a base frame, a three-dimensional cutting mechanism movably provided on the base frame, and conveying mechanisms provided at both ends of the base frame;

[0007] The three-dimensional cutting mechanism includes a movable frame and a variable position cutting mechanism. The movable frame includes a movable plate movably arranged on the base frame. The movable plate is provided with a fixed ring. A driving ring platform is provided on one side of the fixed ring. Multiple variable position cutting mechanisms move in a circular manner on the driving ring platform. The profile passes through the through hole of the fixed ring and is transported by the conveying mechanism.

[0008] The displacement cutting mechanism includes a moving platform that moves on a driving ring platform. A spacing adjustment platform is movably provided on one side of the moving platform. A motor five and a turntable are provided on the spacing adjustment platform. Motor five drives the turntable to rotate at the bottom of the spacing adjustment platform. A folding plate with adjustable position is provided on the turntable, and a laser cutting head is installed on the folding plate.

[0009] As an improvement: a square frame is provided at the bottom of the turntable, an adjustment screw is provided for rotation inside the square frame, a slider is provided on the top of the folding plate for sliding inside the square frame, a threaded hole is provided on the slider for matching with the adjustment screw, and the laser cutting head is installed on the inclined plate of the folding plate.

[0010] As an improvement: the movable platform is provided with a radially arranged slide rail, the spacing adjustment platform is provided with a slide groove that slides with the slide rail, the movable platform is provided with a fourth motor, the output end of the fourth motor is provided with a third threaded rod, and the spacing adjustment platform is provided with a threaded hole that cooperates with the third threaded rod.

[0011] As an improvement: an arc-shaped slide groove is provided on the rear side of the movable platform, an annular slide rail that slides with the arc-shaped slide groove is provided on the front side of the driving ring platform, a third motor is provided on the movable platform, a gear is provided at the output end of the third motor, and a gear ring that meshes with the gear is provided on the outer side of the driving ring platform.

[0012] As an improvement: a synchronization ring is provided on the front side of the driving ring platform, and the synchronization ring passes through the arc grooves on the multiple moving platforms. The moving platforms are provided with tightening bolts at the bottom of the arc grooves that cooperate with the synchronization ring.

[0013] As an improvement: an adjustment mechanism is provided on one side of the base frame, and the adjustment mechanism includes a vertical frame, a directional plate and cylinder 2 are provided on the top of the vertical frame, a slide sliding on the directional plate is provided at the output end of cylinder 2, a motor 6 is provided in the slide, a cross plug is provided at the output end of motor 6, and one end of the adjustment screw passes through the square frame and is provided with a slot that is plugged into the cross plug.

[0014] As an improvement: the conveying mechanism includes a door frame, a fixed plate is provided on the top of the door frame, clamping plates are hinged on both sides of the fixed plate, and multiple rows of rollers are rotatably provided on the fixed plate and the clamping plates.

[0015] As an improvement: a cylinder 1 is provided on the door frame, a push plate is provided at the output end of the cylinder 1, transmission rods are hinged on both sides of the push plate, and the transmission rods are hinged to the bottom of the clamping plate.

[0016] As an improvement: the base frame includes a base plate and a position shifting platform, the position shifting platform moves back and forth on the base plate, and the movable plate moves back and forth on the position shifting platform.

[0017] Compared with existing technologies, the present invention offers the following advantages: The 3D laser cutting device breaks through the limitations of traditional fixed-station and simple multi-axis linkage structures, integrating a multi-dimensional motion mechanism with an adaptive conveying system to achieve precise cutting of complex curved profiles. The device, with its annular drive ring table linked to a multi-position cutting mechanism, can rotate around the profile for cutting, and fine-tune the angles of the turntable and folding plate, solving the problems of traditional devices with a single cutting dimension and insufficient posture adjustment precision. Specifically:

[0018] 1. The device uses the dual-motor-threaded rod drive system (motor 1, threaded rod 1 and motor 2, threaded rod 2) on the chassis to achieve XY-axis plane movement of the cutting mechanism. Cooperating with the annular slide and gear ring transmission of the drive ring table, multiple position-shifting cutting mechanisms can rotate around the profile. Combined with the angle adjustment structure of the turntable and folding plate, a three-dimensional motion system of "plane movement + annular rotation + posture adjustment" is formed. It can accurately complete the cutting of complex trajectories such as straight surfaces, cylindrical surfaces, and conical surfaces, solving the problem that traditional devices cannot handle curved profiles.

[0019] 2. In the variable position cutting mechanism, the threaded transmission design of the screw and the slider can fine-tune the distance between the laser cutting head and the turntable axis, realizing the switch between external chamfer and internal chamfer of circular holes; the radial movement of the spacing adjustment table can adapt to different profile diameters, and combined with the remote cross-insertion table fine-tuning function of the adjustment mechanism, micron-level precision control is achieved to meet high-precision processing requirements;

[0020] 3. The conveying mechanism uses a cylinder to drive the push plate and the transmission rod to link together, so that the clamping plate and rollers can adaptively clamp different profiles such as plates, channel steels, and pipes. The multi-row design of the rollers reduces transmission friction and ensures continuous conveying. The synchronizer ring and tightening bolts of the drive ring table can achieve synchronous or independent movement of multiple cutting heads. It is suitable for both single-point precision cutting and batch processing of evenly arranged holes, significantly improving production efficiency.

[0021] 4. The adjustment mechanism, through the linkage between cylinder 2 and motor 6, can remotely fine-tune the cutting parameters without interrupting the conveying process. Combined with the real-time data feedback of the control system, it can realize the dynamic processing optimization of variable-section profiles, avoid the downtime loss caused by manual calibration of traditional devices, and greatly improve the automation level and processing continuity of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention.

[0023] Figure 2 It is a structural schematic diagram of the chassis of the present invention.

[0024] Figure 3 It is a structural schematic diagram of the three-dimensional cutting mechanism of the present invention.

[0025] Figure 4 It is an exploded view of the three-dimensional cutting mechanism of the present invention.

[0026] Figure 5 This is a schematic diagram of the structure of the displacement cutting mechanism of the present invention. Figure 1 .

[0027] Figure 6 This is a schematic diagram of the structure of the displacement cutting mechanism of the present invention. Figure 2 .

[0028] Figure 7 It is an exploded view of the displacement cutting mechanism of the present invention.

[0029] Figure 8 It is a structural schematic diagram of the turntable of the present invention.

[0030] Figure 9 It is an exploded view of the turntable of the present invention.

[0031] Figure 10 It is a structural schematic diagram of the conveying mechanism of the present invention.

[0032] Figure 11 It is a cross-sectional view of the conveying mechanism of the present invention.

[0033] Figure 12 It is a partial exploded view of the conveying mechanism of the present invention.

[0034] Figure 13 It is a structural schematic diagram of the adjustment mechanism of the present invention.

[0035] Figure 14 It is a partial exploded view of the adjustment mechanism of the present invention.

[0036] As shown in the figure: 1. Base frame; 2. Three-dimensional cutting mechanism; 3. Moving frame; 4. Displacement cutting mechanism; 5. Conveying mechanism; 6. Adjusting mechanism; 11. Base plate; 12. Outer end plate; 13. Motor 1; 14. Threaded rod 1; 15. Displacement table; 16. Motor 2; 17. Threaded rod 2; 31. Moving plate; 32. Fixed ring; 33. Drive ring table; 34. Gear ring; 35. Annular slide rail; 36. Synchronous ring; 41. Moving table; 411. Arc groove; 412. Arc slide groove; 413. Slide rail; 414. Tighten bolts; 42. Electric Machine three; 421, gear; 43, spacing adjustment table; 431, slide; 44, motor four; 441, threaded rod three; 45, motor five; 46, turntable; 461, frame; 47, folding plate; 471, slider; 48, laser cutting head; 49, adjustment screw; 491, slot; 51, gantry; 52, fixed plate; 53, clamping plate; 54, roller; 55, cylinder one; 56, push plate; 57, transmission rod; 61, stand; 62, directional plate; 63, cylinder two; 64, slide; 65, motor six; 66, cross insert. DETAILED DESCRIPTION

[0037] The present invention will be described in further detail below with reference to the accompanying drawings.

[0038] Combined with attachment Figure 1 As shown, a three-dimensional profile laser cutting device includes a base frame 1, a three-dimensional cutting mechanism 2 is movably provided on the base frame 1, and conveying mechanisms 5 are provided at both ends of the base frame 1. The three-dimensional cutting mechanism 2 includes a movable frame 3 and a displacement cutting mechanism 4. The movable frame 3 moves horizontally and left and right on the base frame 1, and multiple displacement cutting mechanisms 4 move in a circle on the movable frame 3 respectively. The profile passes through the through hole on the movable frame 3 and is conveyed by the conveying mechanism 5.

[0039] Combined with attachment Figure 1 and attached Figure 2 As shown, the base frame 1 includes a base plate 11 and a shifting platform 15. A motor 13 is provided on the base plate 11. A threaded rod 14 is provided at the output end of the motor 13. The shifting platform 15 moves back and forth on the base plate 11. A threaded hole that cooperates with the threaded rod 14 is provided at the bottom of the shifting platform 15. A motor 2 16 is provided on the shifting platform 15. A threaded rod 2 17 is provided at the output end of the motor 2 16. The movable frame 3 includes a movable plate 31. The movable plate 31 moves back and forth on the shifting platform 15. A threaded hole that cooperates with the threaded rod 2 17 is provided at the bottom of the movable plate 31. The front and rear ends of the base plate 11 are provided with outer end plates 12, and the conveying mechanism 5 is located on the outer end plate 12.

[0040] Combined with attachment Figure 3 , Attachment Figure 4 and attached Figure 5 As shown, a fixed ring 32 is provided on the movable plate 31, and a driving ring platform 33 is provided on one side of the fixed ring 32. The displacement cutting mechanism 4 includes a movable platform 41 that moves on the driving ring platform 33. The movable platforms 41 of the multiple displacement cutting mechanisms 4 make circular movements on the driving ring platform 33. A spacing adjustment platform 43 is movably provided on one side of the movable platform 41. The spacing adjustment platform 43 is provided with a motor 45 and a turntable 46. The motor 45 drives the turntable 46 to rotate at the bottom of the spacing adjustment platform 43. The turntable 46 is provided with a folding plate 47 with an adjustable position, and a laser cutting head 48 is installed on the folding plate 47.

[0041] This three-dimensional profile laser cutting device effectively solves the problem that traditional two-dimensional cutting equipment cannot handle complex curved profiles through the collaborative design of multi-dimensional motion mechanisms. Its core innovation lies in the combination of circular motion, multi-angle displacement and multi-axis linkage to achieve free positioning and posture adjustment of the laser cutting head in three-dimensional space.

[0042] The device adopts a modular structural design: the base frame serves as the basic support and includes a displacement table that can move forward and backward; the three-dimensional cutting mechanism 2 is composed of a movable frame 3 that can move horizontally and vertically and multiple displacement cutting mechanisms 4 that can move in a circular manner; the front and rear ends of the conveying mechanism 5 are connected to the conveying device in the factory to ensure the continuous transmission of the profile; among them, the dual motor-threaded rod drive system of the base frame 1 realizes the XY axis plane movement of the displacement cutting mechanism 4, and the annular drive ring table 33 enables multiple laser cutting heads 48 to rotate around the profile, and the turntable 46 and folding plate 47 structure equipped with each laser cutting head 48 provide rotation and tilt cutting capabilities.

[0043] During operation, the profile is fed into the device by the conveying mechanism 5, and the motor 13 on the base frame drives the displacement table 15 to move forward and backward, and the motor 2 16 drives the movable frame 3 to move left and right, so that the laser cutting head 48 is quickly positioned to the initial processing position; then, the driving ring table 33 drives multiple displacement cutting mechanisms 4 to perform circular motion synchronously or independently, and adjusts the cutting angle according to the cross-sectional shape of the profile; for complex curved surfaces, the motor 5 45 drives the turntable 46 to rotate, so that the laser cutting head 48 has the ability to rotate and cut, and the adjustable design of the folding plate 47 allows the distance between the cutting point of the laser cutting head 48 and the rotation axis of the turntable 46 to be adjusted, thereby adjusting the diameter of the cut circular hole; further, through the precise linkage control of each motion axis, the cutting of circular holes, slotted holes, square holes, and special-shaped holes can be realized, and the cutting work can also be realized, and the cutting tasks of complex trajectories such as straight plate surfaces, cylindrical surfaces, conical surfaces, and spiral surfaces can be completed, which significantly improves the flexibility and precision of profile processing.

[0044] Combined with attachment Figure 5 , Attachment Figure 7 and attached Figure 9 As shown, a square frame 461 is provided at the bottom of the turntable 46, an adjusting screw 49 is provided for rotation inside the square frame 461, a slider 471 is provided on the top of the folding plate 47 for sliding inside the square frame 461, a threaded hole is provided on the slider 471 for matching with the adjusting screw 49, and the laser cutting head 48 is installed on the inclined plate of the folding plate 47.

[0045] When adjusting the position of the folding plate 47, the adjusting screw 49 is rotated to slide the slider 471 inside the frame 461, thereby moving the folding plate 47 radially along the axis of the turntable 46. The movement of the folding plate 47 affects the distance between the cutting point of the laser cutting head 48 and the axis of the turntable 46. Figure 8 Position, the cutting point of the laser cutting head 48 and the axis of the turntable 46 are at a positive distance. At this time, when the circular hole is cut, the circular hole is chamfered outside. When the folding plate 47 moves to the right, the cutting point of the laser cutting head 48 and the axis of the turntable 46 are at a negative distance. At this time, when the circular hole is cut, the circular hole is chamfered inside. Two cutting methods are suitable for the installation of different bolts or rivets.

[0046] Combined with attachment Figure 5 and attached Figure 7 As shown, the movable platform 41 is provided with a radially arranged slide rail 413, the spacing adjustment platform 43 is provided with a slide groove 431 that slides with the slide rail 413, the movable platform 41 is provided with a motor four 44, the output end of the motor four 44 is provided with a threaded rod three 441, and the spacing adjustment platform 43 is provided with a threaded hole that cooperates with the threaded rod three 441.

[0047] In order to meet the requirements of adjusting the distance between the laser cutting head 48 and the profile, the distance adjustment platform 43 is designed to move radially. The motor 44 drives the threaded rod 3 441 to rotate. The threaded rod 3 441 cooperates with the threaded hole on the distance adjustment platform 43 to make the distance adjustment platform 43 move along the slide rail 413, thereby driving the turntable 46 and the folding plate 47 to move.

[0048] In addition, the radial movement design of the spacing adjustment platform 43 can also meet the needs of the laser cutting head 48 for vertical cutting operations. The movable platform 41 is moved to the appropriate position so that the laser cutting head 48 on the folding plate 47 is perpendicular to the cutting surface of the profile. The spacing adjustment platform 43 is moved and the multi-dimensional movement coordination of the base frame 1 and the movable frame 3 is adjusted to adjust the spacing between the laser cutting head 48 and the profile. At this time, when performing circular hole cutting, the base frame 1 and the movable frame 3 need to cooperate to make the laser cutting head 48 perform a circular motion.

[0049] Combined with attachment Figure 4 and attached Figure 6 As shown, an arc-shaped slide groove 412 is provided on the rear side of the movable platform 41, and an annular slide rail 35 that slides with the arc-shaped slide groove 412 is provided on the front side of the driving ring platform 33. A motor 3 42 is provided on the movable platform 41, and a gear 421 is provided at the output end of the motor 3 42. A gear ring 34 that meshes with the gear 421 is provided on the outer side of the driving ring platform 33.

[0050] Combined with attachment Figure 4 and attached Figure 6 As shown, a synchronizer ring 36 is provided on the front side of the driving ring platform 33 . The synchronizer ring 36 passes through a plurality of arcuate slots 411 on the movable platform 41 . The movable platform 41 has a tightening bolt 414 at the bottom of the arcuate slot 411 , which cooperates with the synchronizer ring 36 .

[0051] In order to realize the circular movement of the movable table 41 on the driving ring table 33, the arc-shaped slide groove 412 is connected to the annular slide rail 35, so that the displacement cutting mechanism 4 is hung on the driving ring table 33. When moving, the motor three 42 drives the gear 421 to rotate, and the gear 421 engages with the gear ring 34 to make the movable table 41 move along the annular slide rail 35. Multiple displacement cutting mechanisms 4 can move separately to cut different holes. When cutting evenly arranged holes, multiple displacement cutting mechanisms 4 can be connected by the synchronization ring 36. After tightening the tightening bolt 414, the displacement cutting mechanism 4 is fixedly connected to the synchronization ring 36. At this time, when multiple displacement cutting mechanisms 4 move, the distance between each other when moving is consistent, thereby improving the efficiency of the cutting operation for evenly arranged holes.

[0052] Combined with attachment Figure 1 , Attachment Figure 9 , Attachment Figure 13 and attached Figure 14 As shown, an adjustment mechanism 6 is provided on one side of the base frame 1, and the adjustment mechanism 6 includes a vertical frame 61, a directional plate 62 and a cylinder 2 63 are provided on the top of the vertical frame 61, and a slide 64 sliding on the directional plate 62 is provided at the output end of the cylinder 2 63, and a motor 65 is provided in the slide 64, and a cross plug 66 is provided at the output end of the motor 65, and one end of the adjustment screw 49 passes through the square frame 461 and is provided with a slot 491 that is plugged into the cross plug 66.

[0053] Based on the original three-dimensional profile laser cutting device, the newly added adjustment mechanism 6 realizes remote and precise fine-tuning of the laser cutting head position through a mechanical linkage design. The key innovation lies in the plug-in structure of the cross plug 66 and the slot 491: the cross plug 66 at the output end of the motor 65 can form a detachable connection with the slot 491 at the end of the adjustment screw 49. When the cylinder 2 63 pushes the slide 64 forward, the cross plug 66 is inserted into the slot 491. At this time, the rotation of the motor 65 can drive the adjustment screw 49 to rotate, and then adjust the position of the folding plate 47 through the screw drive (fine-tuning the distance between the cutting point of the laser cutting head 48 and the axis of the turntable 46). After the adjustment is completed, the cylinder 2 63 retracts the slide 64, and the cross plug 66 is separated from the slot 491. The displacement cutting mechanism 4 can independently perform the circular cutting task.

[0054] This design cleverly integrates the remote adjustment function with the position-shifting cutting mechanism 4, which not only retains the flexibility of the position-shifting cutting mechanism 4, but also realizes position accuracy control through mechanical transmission. During actual operation, the control system can dynamically trigger the action of the adjustment mechanism 6 based on the real-time processing data of the profile, and complete the cutting parameter optimization without interrupting the conveying process. It is particularly suitable for continuous cutting scenarios of variable-section profiles, and significantly improves the processing adaptability and automation level of the equipment.

[0055] Combined with attachment Figure 1 , Attachment Figure 10 , Attachment Figure 11 and attached Figure 12 As shown, the conveying mechanism 5 includes a gantry 51, a fixed plate 52 is provided on the top of the gantry 51, and clamping plates 53 are hinged on both sides of the fixed plate 52. Multiple rows of rollers 54 are rotatably provided on the fixed plate 52 and the clamping plates 53. A cylinder 55 is provided on the gantry 51, and a push plate 56 is provided at the output end of the cylinder 55. Transmission rods 57 are hinged on both sides of the push plate 56, and the transmission rod 57 is hinged to the bottom of the clamping plate 53.

[0056] The conveying mechanism 5 is designed to achieve stable transmission and precise positioning of profiles. Through an ingenious mechanical linkage structure, it effectively solves the problem of clamping and conveying profiles of different sizes. It uses a door frame 51 as the supporting body, a top fixed plate 52 as the core connecting component, and clamping plates 53 on both sides are connected to it by a hinged manner to form an openable and closable clamping space. Multiple rows of rollers 54 are respectively installed on the fixed plate 52 and the clamping plate 53. The rotating design of the rollers reduces the friction during profile conveying and ensures smooth transmission.

[0057] The core driving part is the cylinder 55 installed on the door frame 51. When the cylinder 55 is started, the output end pushes the push plate 56 to move, and the transmission rods 57 hinged on both sides of the push plate 56 will move accordingly. The transmission rods 57 are hinged to the bottom of the clamping plate 53. This hinged structure allows the linear motion of the push plate 56 to be converted into the opening and closing action of the clamping plate 53. When the cylinder 55 contracts, the push plate 56 drives the transmission rods 57 to open the clamping plate 53, so that the clamping plate 53 falls to the wing plates on both sides of the fixed plate 52. The tops of the rollers 54 on the fixed plate 52 and the clamping plate 53 are at the same horizontal plane. At this time, profiles such as plates, channel steels, and I-beams can be moved. The conveying is carried out; when the cylinder 55 is extended, the transmission rod 57 pushes the clamping plate 53 to move upward, and the clamping plate 53 is close to the profile, so that the roller 54 is in close contact with the surface of the profile to achieve stable clamping. This method is suitable for the conveying of pipes to prevent the pipes from rolling during the conveying process; the rolling of the roller 54 cooperates with the working rhythm of the cutting mechanism to continuously feed the profile into the through hole of the mobile frame 3, and cooperates with the displacement cutting mechanism 4 to complete the processing. In this way, the conveying mechanism 5 ensures the stability of the profile transmission through mechanical transmission and clamping design, and can adapt to a variety of profile sizes, providing reliable guarantee for the efficient operation of the entire laser cutting device.

[0058] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above and, without departing from the purpose of the present invention, designs structures and embodiments similar to the technical solution without creatively designing, they shall fall within the scope of protection of the present invention.

Claims

1. A three-dimensional profile laser cutting device, comprising a base frame (1), a three-dimensional cutting mechanism (2) movably provided on the base frame (1), and conveying mechanisms (5) provided at both ends of the base frame (1), characterized in that: The three-dimensional cutting mechanism (2) includes a movable frame (3) and a displacement cutting mechanism (4), the movable frame (3) includes a movable plate (31) movably arranged on the base frame (1), a fixed ring (32) is provided on the movable plate (31), and a driving ring platform (33) is provided on one side of the fixed ring (32), and a plurality of displacement cutting mechanisms (4) perform circular movement on the driving ring platform (33), and the profile passes through the through hole of the fixed ring (32) and is transported through the conveying mechanism (5); The displacement cutting mechanism (4) includes a moving platform (41) that moves on a driving ring platform (33), a spacing adjustment platform (43) is movably provided on one side of the moving platform (41), a motor (45) and a turntable (46) are provided on the spacing adjustment platform (43), the motor (45) drives the turntable (46) to rotate at the bottom of the spacing adjustment platform (43), a folding plate (47) with adjustable position is provided on the turntable (46), and a laser cutting head (48) is installed on the folding plate (47); The bottom of the turntable (46) is provided with a square frame (461), an adjusting screw (49) is rotatably provided in the square frame (461), a slider (471) is provided on the top of the folding plate (47) and slides inside the square frame (461), and a threaded hole is provided on the slider (471) to cooperate with the adjusting screw (49), and a laser cutting head (48) is installed on the inclined plate of the folding plate (47); When the position of the folding plate (47) is adjusted, the adjusting screw (49) is rotated to make the slider (471) slide inside the frame (461), thereby making the folding plate (47) move radially along the axis of the turntable (46). The movement of the folding plate (47) affects the distance between the cutting point of the laser cutting head (48) and the axis of the turntable (46). The cutting point of the laser cutting head (48) and the axis of the turntable (46) are at a positive distance. At this time, when the circular hole is cut, the circular hole is an outer chamfer. When the folding plate (47) moves to the right, the cutting point of the laser cutting head (48) and the axis of the turntable (46) are at a negative distance. At this time, when the circular hole is cut, the circular hole is an inner chamfer.

2. The three-dimensional profile laser cutting device according to claim 1, characterized in that: The movable platform (41) is provided with a radially arranged slide rail (413), the spacing adjustment platform (43) is provided with a slide groove (431) that slidably cooperates with the slide rail (413), the movable platform (41) is provided with a motor four (44), the output end of the motor four (44) is provided with a threaded rod three (441), and the spacing adjustment platform (43) is provided with a threaded hole that cooperates with the threaded rod three (441).

3. The three-dimensional profile laser cutting device according to claim 1, characterized in that: The movable platform (41) is provided with an arc-shaped slide groove (412) on the rear side, and the driving ring platform (33) is provided with an annular slide rail (35) that slides with the arc-shaped slide groove (412) on the front side. The movable platform (41) is provided with a motor (42), and the output end of the motor (42) is provided with a gear (421). The outer side of the driving ring platform (33) is provided with a gear ring (34) that meshes with the gear (421).

4. The three-dimensional profile laser cutting device according to claim 3, characterized in that: A synchronization ring (36) is provided on the front side of the driving ring platform (33). The synchronization ring (36) passes through arc grooves (411) on a plurality of moving platforms (41). The moving platforms (41) are provided with tightening bolts (414) at the bottom of the arc grooves (411) that cooperate with the synchronization ring (36).

5. The three-dimensional profile laser cutting device according to claim 1, characterized in that: An adjustment mechanism (6) is provided on one side of the base frame (1), and the adjustment mechanism (6) includes a stand (61), a directional plate (62) and a second cylinder (63) are provided on the top of the stand (61), a slide (64) sliding on the directional plate (62) is provided at the output end of the second cylinder (63), a motor six (65) is provided in the slide (64), and a cross plug (66) is provided at the output end of the motor six (65), and one end of the adjustment screw (49) passes through the square frame (461) and is provided with a slot (491) that is plugged into and matched with the cross plug (66).

6. The three-dimensional profile laser cutting device according to claim 1, characterized in that: The conveying mechanism (5) comprises a door frame (51), a fixed plate (52) is provided on the top of the door frame (51), clamping plates (53) are hingedly provided on both sides of the fixed plate (52), and multiple rows of rollers (54) are rotatably provided on both the fixed plate (52) and the clamping plate (53).

7. The three-dimensional profile laser cutting device according to claim 6, characterized in that: The door frame (51) is provided with a cylinder 1 (55), and the output end of the cylinder 1 (55) is provided with a push plate (56). Both sides of the push plate (56) are hingedly provided with a transmission rod (57), and the transmission rod (57) is hinged to the bottom of the clamping plate (53).

8. The three-dimensional profile laser cutting device according to claim 1, characterized in that: The base frame (1) comprises a base plate (11) and a position shifting platform (15). The position shifting platform (15) moves forward and backward on the base plate (11), and the movable plate (31) moves forward and backward on the position shifting platform (15).

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