High-rigidity coupling type cross beam module and three-dimensional laser cutting machine

Abstract

According to the high-rigidity coupling type cross beam module and the three-dimensional laser cutting machine, high-rigidity linear guide rails arranged in the length direction are additionally arranged on the groove walls of the two sides of a Z-axis sleeve receding groove, and meanwhile two high-rigidity supporting blocks fixedly connected with a Y-axis sliding base and sliding blocks of the two high-rigidity linear guide rails are additionally arranged; the two high-rigidity supporting blocks and the two high-rigidity linear guide rails form a dynamic quadrilateral supporting structure, the two high-rigidity supporting blocks can serve as two dynamic reinforcing ribs through synchronous movement of the two high-rigidity supporting blocks and the Y-axis sliding base, the structural strength of the cross beam is improved, the static rigidity and the dynamic rigidity of the cross beam are improved, and the service life of the cross beam is prolonged. The cross beam straightening device can be used for straightening a cross beam and can also be used as two dynamic online straighteners, and the cross beam is straightened by moving back and forth, so that even if the cross beam is used for a long time, the cross beam is very difficult to bend and twist; meanwhile, a force transmission path is additionally arranged, the integrated coupling design is achieved, and therefore the bearing capacity of the whole beam module is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting, and particularly relates to a high-rigidity coupled crossbeam module and a three-dimensional laser cutting machine. Background Art

[0002] A three-dimensional laser cutting machine is a high-end equipment integrating optics, mechanics, electricity, and pneumatics, regarded as the pearl on the crown of laser processing equipment. It is mainly used for punching holes and trimming edges of complex stamping parts, and is widely used in fields such as aerospace and new energy vehicles.

[0003] Please refer to the Chinese utility model patent with the publication number CN219310399U. For existing three-dimensional laser cutting machines, whether they use a single laser cutting head or a double laser cutting head, the Y-axis slide is installed on one side of the crossbeam in an offset structure. This not only easily causes the overall to skew due to the offset of the center of gravity, thus requiring frequent alignment debugging, but also easily causes the crossbeam to twist and deform during long-term use, affecting the static and dynamic characteristics of the cutting machine.

[0004] Therefore, please refer to the Chinese invention patent application with the application number CN2025101446959. The applicant of this case designed a hollow crossbeam and a crossbeam module, and the Y-axis slide realizes a central straddle-mounted installation method on the hollow crossbeam, so that the center of gravity of the Y-axis slide and the Z-axis sleeve is at the center of the hollow crossbeam, greatly improving the stability and reliability of the Y-axis slide and the Z-axis sleeve. It not only does not require frequent alignment debugging, but also is not easily caused by the crossbeam to twist and deform, making the static and dynamic characteristics of the three-dimensional laser cutting machine excellent.

[0005] However, the applicant found in repeated tests that even if the flat tube part of the Z-axis sleeve is designed as thin as possible on the premise of meeting the wiring requirements, so that the width of the Z-axis sleeve relief groove of the crossbeam is as small as possible, it still cannot change the problem that the static and dynamic stiffness of the crossbeam itself may not meet the requirements of ultra-high machining accuracy and ultra-high machining stability inevitably brought by the underlying design of the hollow quadrilateral frame structure of the crossbeam. This leads to a low low-order modal frequency of the crossbeam, mainly manifested as the possible bending and torsion of the two side strip slides after long-term use, resulting in poor stability of the Y-axis slide, thus affecting the machining accuracy and further limiting the application of the equipment in high-precision machining scenarios. Summary of the Invention

[0006] In view of this, the present invention provides a high-rigidity coupled crossbeam module and a three-dimensional laser cutting machine.

[0007] The technical solution is as follows:

[0008] The first aspect of the present application relates to a high-rigidity coupled crossbeam module, which includes a crossbeam, a Y-axis slide, a Z-axis sleeve, and a laser cutting head. The middle part of the crossbeam has a Z-axis sleeve relief groove extending along its length direction. The Y-axis slide can move along the length direction of the crossbeam under the control of a slide driving assembly. The Z-axis sleeve can move up and down along the Y-axis slide under the control of a sleeve driving assembly and is inserted into the Z-axis sleeve relief groove. The laser cutting head is installed at the bottom of the Z-axis sleeve. On both side walls of the Z-axis sleeve relief groove, high-rigidity linear guides extending along the length direction of the crossbeam are fixedly installed in parallel. On both sides of the Y-axis slide along the length direction of the crossbeam, high-rigidity support blocks extending along the width direction of the crossbeam are fixedly installed. Both ends of the high-rigidity support blocks are respectively fixedly connected and supported between the corresponding sliders of the two high-rigidity linear guides.

[0009] By adopting the above high-rigidity coupled crossbeam module, not only high-rigidity linear guides arranged along the length direction are added on both side walls of the Z-axis sleeve relief groove, which is equivalent to adding two straighteners on the crossbeam, but also two high-rigidity support blocks fixedly connected to the Y-axis slide and the sliders of the two high-rigidity linear guides are added. The two high-rigidity support blocks and the two high-rigidity linear guides (including the slide rail and the slider) form a dynamic quadrilateral support structure. Through the synchronous movement with the Y-axis slide, the two high-rigidity support blocks can not only serve as two dynamic stiffeners, thereby dynamically ensuring the local structural rigidity during the machining process, improving the overall structural strength of the crossbeam module, enhancing the static and dynamic rigidity of the crossbeam module, but also serve as two dynamic on-line straighteners to straighten the crossbeam by moving back and forth. As a result, even after long-term use, it is extremely difficult for the crossbeam to bend and twist. At the same time, the two high-rigidity support blocks and the two high-rigidity linear guides also greatly increase the structural strength of the connection between the crossbeam and the Y-axis slide, adding a new force transmission path and realizing an integrated coupling design, thereby significantly improving the load-bearing capacity of the entire crossbeam module and enabling the three-dimensional laser cutting machine to have excellent static and dynamic characteristics.

[0010] In some embodiments, the crossbeam includes two parallel strip-shaped slides and two end connectors fixedly connected to the two ends of the strip-shaped slides. The gap between the two strip-shaped slides forms the Z-axis sleeve relief groove. The Y-axis slide can slide along the two strip-shaped slides under the control of a slide driving assembly. The high-rigidity linear guides are installed on the side walls of the two strip-shaped slides close to each other.

[0011] In some embodiments, on the side walls of the two bar-shaped sliding seats close to each other, guiding support grooves adapted to the corresponding end portions of the high-rigidity support blocks are recessed along the length direction. Two high-rigidity linear guide rails are respectively fixedly installed at the bottoms of the corresponding guiding support grooves. The two ends of the high-rigidity support block are respectively inserted into the corresponding guiding support grooves, and the upper and lower side walls at both ends of the high-rigidity support block are respectively in contact with the two side wall surfaces of the corresponding guiding support grooves.

[0012] In some embodiments, on the side of the high-rigidity support block away from the Z-axis sleeve, a first oil buffer extending away from the Z-axis sleeve is installed. On the side of the end connection seat close to the Z-axis sleeve, a first force sensor facing the adjacent first oil buffer is installed.

[0013] In some embodiments, the sliding seat driving assembly includes two second linear guide rails, a second rack, and a second driving motor fixedly installed on the Y-axis sliding seat;

[0014] The upper parts of the two bar-shaped sliding seats have upper support surfaces that are both inclined plane structures. The two upper support surfaces are symmetrically inclined obliquely downward away from each other. Installation bosses are provided on the upper support surfaces. The installation bosses all extend along the length direction of the corresponding upper support surfaces. On the sides of the two installation bosses away from each other, support ribs protrude. The second linear guide rails extending along their length directions are installed on the installation bosses. The slide rails of each second linear guide rail are respectively supported on the corresponding support ribs;

[0015] On one of the upper support surfaces, on the side close to the Z-axis sleeve relief groove, a rack installation horizontal plane extending in the horizontal direction is formed. A rack installation pad extending along the length direction of the Z-axis sleeve relief groove is installed on the rack installation horizontal plane. On the top surface of the rack installation pad, on the side away from the Z-axis sleeve relief groove, a rack support rib protrudes. The second rack extending along its length direction is installed on the rack installation pad. The second rack is supported on the rack support rib. A second driving gear meshing with the second rack is synchronously rotated and sleeved on the motor shaft of the second driving motor.

[0016] In some embodiments, the interiors of the bar-shaped sliding seats are all hollow structures extending along their length directions. A number of reinforcing support ribs distributed along their length directions are provided inside the bar-shaped sliding seats. A number of weight-reducing openings distributed along their length directions are provided on the upper support surfaces. Each reinforcing support rib is respectively located at both ends of the corresponding weight-reducing opening.

[0017] In some embodiments, the sleeve driving assembly includes a first rack, at least two first linear guide rails, and a first driving motor fixedly installed on the Y-axis sliding seat;

[0018] The Z-axis sleeves each include a flat tube portion in a tubular structure and a cylindrical tube portion integrally formed coaxially at the bottom of the flat tube portion. The laser cutting heads extending downward are installed in the cylindrical tube portions. The outer walls on both sides in the width direction of the flat tube portion are both lifting guide planes parallel to each other, and the distance between two adjacent lifting guide planes is less than the diameter of the corresponding cylindrical tube portion. At least one first linear guide rail extending in the vertical direction is installed on each lifting guide plane. A first rack extending in the vertical direction is installed on one of the lifting guide planes of the Z-axis sleeve. The Y-axis sliding seats are respectively sleeved outside the corresponding flat tube portions, and a first driving gear meshing with the first rack is synchronously rotatably sleeved on the motor shaft of the first driving motor.

[0019] In some embodiments, the circumferential outer wall of the flat tube portion is enclosed by two oppositely arranged lifting guide planes and two oppositely arranged arc surfaces. The arc surfaces are both arc surface structures protruding outward, and the lifting guide planes and the arc surfaces both extend in the vertical direction;

[0020] The Y-axis sliding seat in an annular structure is enclosed by two oppositely arranged slider mounting components and two oppositely arranged buckle components. The slider mounting components each include a crossbeam slider mounting seat and two sleeve slider mounting seats. The crossbeam slider mounting seat includes a vertically extending vertical mounting plate and a slider connecting plate bent outward from the bottom of the vertical mounting plate. The two slider connecting plates are respectively parallel to the corresponding upper support surfaces and are both provided with Y-direction slider connection structures. Z-direction slider connection structures are provided on all four sleeve slider mounting seats. Connection bosses adapted to the corresponding vertical mounting plates are provided on the outer sides of the sleeve slider mounting seats, and each connection boss can be adjustably installed on the inner side of the corresponding vertical mounting plate. The buckle components each consist of at least one vertically arranged buckle. Both ends of each buckle are bent inward to form buckle connecting arms. Connection arm slots adapted to the corresponding buckle connecting arms are opened on the side walls of each connection boss, and each buckle connecting arm can be adjustably installed in the corresponding connection arm slot;

[0021] Two first linear guide rails extending in the vertical direction are installed on both lifting guide planes. The two slider mounting components are correspondingly arranged on the outer sides of the two lifting guide planes, and the two buckle components are correspondingly arranged on the outer sides of the two arc surfaces. The four Z-direction slider connection structures are fixedly connected to the sliders of the four first linear guide rails respectively. The first driving motor is installed on the crossbeam slider mounting seat close to the first rack;

[0022] The two Y-direction slider connection structures are fixedly connected to the sliders of the two second linear guide rails respectively. The second driving motor is installed on the crossbeam slider mounting seat far from the first rack;

[0023] The lower part of each of the four slider connection structures is provided with a support block mounting seat adapted to the high-rigidity support block, and the high-rigidity support blocks are fixedly installed in pairs of two of the four support block mounting seats.

[0024] In some embodiments, a vision system bracket is installed at the bottom of each of the high-rigidity support blocks, an on-line adjustment motor is fixedly installed on each of the vision system brackets, an on-line camera bracket is fixedly installed on the motor shaft of each of the on-line adjustment motors, and an on-line vision camera is fixedly installed on each of the line camera brackets.

[0025] The second aspect of the present application relates to a three-dimensional laser cutting machine, including a bed body and two sets of the above-mentioned high-rigidity coupled crossbeam modules. Two crossbeams are arranged parallel to each other across the top of the bed body in the width direction of the bed body and can move along the length direction of the bed body under the control of a crossbeam drive assembly;

[0026] The crossbeam drive assembly includes two third linear guides and two third racks that are both installed along the length direction of the bed body on the top of the bed body, and two third drive motors that are respectively fixedly installed at both ends of the two crossbeams. Both ends of the crossbeam are respectively installed on the corresponding sliders of the two third linear guides, and third drive gears that are respectively engaged with the corresponding third racks are synchronously rotated and sleeved on the motor shafts of the respective third drive motors.

[0027] By adopting the above three-dimensional laser cutting machine, all the advantages of the above-mentioned high-rigidity coupled crossbeam module are possessed. Description of the Drawings

[0028] Figure 1 It is a schematic structural diagram of a three-dimensional laser cutting machine;

[0029] Figure 2 It is a schematic structural diagram of the bed body;

[0030] Figure 3 It is a schematic structural diagram of a high-rigidity coupled crossbeam module;

[0031] Figure 4 It is a schematic structural diagram of the crossbeam;

[0032] Figure 5 It is a schematic structural diagram of one perspective of the Z-axis sleeve;

[0033] Figure 6 It is a schematic structural diagram of another perspective of the Z-axis sleeve;

[0034] Figure 7 It is a schematic installation structural diagram of one perspective of the Z-axis sleeve, the Y-axis slide and the laser cutting head;

[0035] Figure 8Schematic diagram of the installation structure of the Z-axis sleeve, Y-axis slide and laser cutting head from another perspective;

[0036] Figure 9 Schematic diagram of the structure of the Y-axis slide;

[0037] Figure 10 Schematic diagram of the structure of one of the slider mounting components;

[0038] Figure 11 Schematic diagram of the structure of another slider mounting component;

[0039] Figure 12 Schematic diagram of the structure of the sleeve slider mounting base;

[0040] Figure 13 Schematic diagram of the structure of the buckle. Detailed implementation mode

[0041] The present invention will be further described below in conjunction with embodiments and drawings.

[0042] Embodiment 1:

[0043] As Figures 1-13 shown, a high-rigidity coupled crossbeam module mainly includes a crossbeam 6, a Y-axis slide 2, a Z-axis sleeve 1 and a laser cutting head 5.

[0044] The crossbeam 6 is composed of two strip-shaped slides 6b and two end connecting seats 6c. The two strip-shaped slides 6b and the two end connecting seats 6c are preferably integrally formed by a casting process, with high structural strength. The two strip-shaped slides 6b are both columnar or strip-shaped structures, and the two strip-shaped slides 6b are parallel to each other. The two end connecting seats 6c are arranged at both ends of the two strip-shaped slides 6b, that is: one end connecting seat 6c is fixedly connected to one end of the two strip-shaped slides 6b, and the other end connecting seat 6c is fixedly connected to the other end of the two strip-shaped slides 6b.

[0045] In this embodiment, the gap between the two strip-shaped slides 6b forms a Z-axis sleeve relief groove 6a extending in the horizontal direction, and both ends of the Z-axis sleeve relief groove 6a are defined by the two strip-shaped slides 6b. Moreover, Y-direction sliding component installation structures 6b1 are provided on the upper parts of the strip-shaped slides 6b, and X-direction driving device installation structures 6c1 are provided on the end connecting seats 6c, so that the centers of gravity of the Y-axis slide 2 and the Z-axis sleeve 1 are located at the center position of the crossbeam 6, greatly improving the stability and reliability of the Y-axis slide 2 and the Z-axis sleeve 1, neither requiring frequent deviation correction debugging nor being prone to causing torsional deformation of the crossbeam 6, making the static and dynamic characteristics of the three-dimensional laser cutting machine excellent.

[0046] Therefore, the cross beam 6 of this embodiment enables the Y-axis slide 2 to be installed on two Y-direction sliding component installation structures 6b1, and at the same time, the Z-axis sleeve 1 can pass through the Z-axis sleeve relief groove 6a, so as to be able to cooperate with the Y-axis slide 2 to achieve a mid-position straddle-mounted installation method on the cross beam 6.

[0047] Furthermore, the upper parts of the two strip-shaped slides 6b have upper support surfaces 6b2 that are both inclined plane structures. The two upper support surfaces 6b2 are symmetrically inclined downward away from each other, that is: the two upper support surfaces 6b2 together form an "eight" shape structure. At the same time, the Y-direction sliding component installation structures 6b1 each include installation bosses 6b11 protruding from the corresponding upper support surfaces 6b2. The installation bosses 6b11 extend along the length direction of the corresponding upper support surfaces 6b2. On the sides of the two installation bosses 6b11 away from each other, support ribs 6b12 are protruding. Second linear guide rails 7 extending along their length directions are installed on the installation bosses 6b11. The slide rails of each second linear guide rail 7 are respectively supported on the corresponding support ribs 6b12. Therefore, not only is the reliable installation of the second linear guide rail 7 ensured, but the two second linear guide rails 7 also together form an "eight" shape structure.

[0048] In this embodiment, at least one upper support surface 6b2 forms a rack installation horizontal surface 6b3 extending in the horizontal direction on the side close to the Z-axis sleeve relief groove 6a. A rack installation pad 11 extending along the length direction of the Z-axis sleeve relief groove 6a is installed on one of the rack installation horizontal surfaces 6b3. On the top surface of the rack installation pad 11, a rack support rib 11a protrudes on the side away from the Z-axis sleeve relief groove 6a. A second rack 8 extending along its length direction is installed on the rack installation pad 11. The side of the second rack 8 away from the Z-axis sleeve relief groove 6a is supported on the rack support rib 11a, ensuring the reliable installation of the second rack 8.

[0049] Furthermore, the interiors of the strip-shaped slides 6b are all hollow structures extending along their length directions to meet the requirements of lightweight design. At the same time, a number of strengthening support ribs 6b4 distributed along their length directions are provided inside the strip-shaped slides 6b, thus ensuring the structural strength of the strip-shaped slides 6b. Among them, since weight reduction openings 6b41 are also provided on the strengthening support ribs 6b4, the overall lightweight is further improved.

[0050] Moreover, a number of weight reduction openings 6b5 distributed along their length directions are provided on the upper support surfaces 6b2. Each strengthening support rib 6b4 is respectively located at both ends of the corresponding weight reduction opening 6b5, which not only meets the requirements of lightweight design, but also facilitates the welding and installation of the strengthening support ribs 6b4.

[0051] In this embodiment, the X-direction driving device mounting structures 6c1 are respectively motor mounting grooves formed by concave downward from the top surface of the corresponding end connecting seats 6c, facilitating the installation of the motors. Meanwhile, a number of triangular reinforcing ribs 6c2 are provided on the groove walls of the two motor mounting grooves, ensuring the structural strength of the positions of the motor mounting grooves.

[0052] The Z-axis sleeve 1 includes an integrally formed flat tube portion 1a and a cylindrical tube portion 1b, with high structural strength. Among them, the flat tube portion 1a is a flat tubular structure, and the flat tube portion 1a extends in the vertical direction. The cylindrical tube portion 1b is a cylindrical structure, and the cylindrical tube portion 1b also extends in the vertical direction. At the same time, the cylindrical tube portion 1b is located at the lower end of the flat tube portion 1a.

[0053] In this embodiment, the flat tube portion 1a and the cylindrical tube portion 1b are coaxially arranged. Most importantly, on both sides in the width direction of the flat tube portion 1a, there are provided lifting guide planes 1a1 that extend parallel to each other in the vertical direction. And the distance between the two lifting guide planes 1a1 is smaller than the diameter of the cylindrical tube portion 1b. At the same time, the cylindrical tube portion 1b protrudes radially from the two lifting guide planes 1a1. In addition, on the lifting guide planes 1a1, there are provided lifting control component mounting structures that extend in the vertical direction.

[0054] The flat tube portion 1a is used to cooperate with the Y-axis slide 2, that is: the flat tube portion 1a can lift along the Y-axis slide 2. The cylindrical tube portion 1b is used to mount the laser cutting head 5. Specifically, the laser cutting head 5 extends downward out of the cylindrical tube portion 1b. Among them, the laser cutting head 5 adopts a traditional laser cutting head that can emit laser, usually having one or two or more rotational degrees of freedom, which can be selected according to actual needs.

[0055] Therefore, on the premise of meeting the wire routing requirements, the flat tube portion 1a can achieve an ultra-thin design, that is: the distance between the two lifting guide planes 1a1 can be designed to be very small. Therefore, the width of the Y-axis slide 2 that cooperates with it can also be very small, thereby reducing the size and weight of the Y-axis slide 2, meeting the requirements of lightweight design. And because the Z-axis sleeve 1 and the Y-axis slide 2 form an irregular shaft-hole fit through the flat tube portion 1a, there will be no relative rotation between them, so there will be no misassembly problem during assembly, and the assembly tolerance can be greatly reduced, shortening the assembly and debugging cycle; at the same time, because the widths of the flat tube portion 1a and the Y-axis slide 2 are very small, the width of the Z-axis sleeve relief groove 6a of the cross beam 6 that cooperates with them can be greatly reduced, thereby effectively improving the structural strength of the cross beam 6, not easily occurring bending deformation problems, and reducing the maintenance frequency and usage cost.

[0056] On the inner wall of the flat tube portion 1a, two wire routing relief grooves 1a2 facing each other are recessed, and both wire routing relief grooves 1a2 are arranged inside the corresponding lifting guide plane 1a1 along the vertical direction. Therefore, while ensuring its own structural strength, the middle part of the flat tube portion 1a can facilitate wire routing through the two wire routing relief grooves 1a2 of the expanded diameter profile.

[0057] Furthermore, the cross-section of the flat tube portion 1a is approximately rectangular. Specifically, the circumferential outer wall of the flat tube portion 1a is enclosed by two relatively arranged lifting guide planes 1a1 and two relatively arranged arc surfaces 1a5. The lifting guide planes 1a1 are both plane structures, and the arc surfaces 1a5 are both arc surface structures protruding outward. The lifting guide planes 1a1 and the arc surfaces 1a5 both extend along the vertical direction. Among them, since the arc surface 1a5 is an arc-shaped thin plate structure, it is not only easy to cast, but also has higher structural strength compared to the conventional flat plate structure.

[0058] In this embodiment, since both lifting guide planes 1a1 protrude from the cylindrical tube portion 1b horizontally to both sides, the internal space of the flat tube portion 1a can be effectively increased, facilitating more wire harnesses to pass through without increasing the width of the flat tube portion 1a.

[0059] The Z-axis sleeve 1 of this embodiment is integrally formed by a casting process, with high structural strength.

[0060] The Y-axis slide 2 has an annular structure. Specifically, the Y-axis slide 2 is enclosed by two relatively arranged slider mounting components and two relatively arranged buckle components, that is: the two slider mounting components face each other, the two buckle components face each other, and the two slider mounting components and the two buckle components are arranged in a rectangular pattern, thus jointly forming an annular structure.

[0061] Each slider mounting component includes a crossbeam slider mounting seat 2a and two sleeve slider mounting seats 2b. The crossbeam slider mounting seat 2a includes a vertically extending vertical mounting plate 2a1 and a slider connecting plate 2a2 bent outward from the bottom of the vertical mounting plate 2a1. The two slider connecting plates 2a2 are respectively parallel to the corresponding upper support surface 6b2, and Y-direction slider connection structures 2a21 are provided on both slider connecting plates 2a2. Among them, the slider connecting plate 2a2 can be arranged perpendicular to the vertical mounting plate 2a1 or inclined to the vertical mounting plate 2a1.

[0062] Furthermore, the slider connecting plate 2a2 of this embodiment is preferably extended outward from the lower edge of the corresponding vertical mounting plate 2a1 and inclined downward, so that the two slider connecting plates 2a2 of the two slider mounting components jointly form a "V" - shaped structure (matched with the second linear guide 7).

[0063] Therefore, when the Y-axis slide 2 is translated, it can apply pressure to the cross beam 6 in a way of slope cooperation. Compared with the structure that the slider connecting plate 2a2 applies pressure to the cross beam 6 perpendicular to the vertical mounting plate 2a1, the method of this embodiment can reduce the pressure borne by the cross beam 6, so that the structural stability of the cross beam 6 is better, and the risk of the middle part of the cross beam 6 being concave and bent is reduced.

[0064] Furthermore, at least one triangular reinforcing rib 2a3 is provided between the outer surface of the vertical mounting plate 2a1 and the upper surface of the slider connecting plate 2a2, so as to effectively improve the structural strength of the cross beam slider mounting seat 2a and prevent deformation.

[0065] Z-axis slider connection structures 2b1 are provided on all four sleeve slider mounting seats 2b. Connection bosses 2b2 adapted to the corresponding vertical mounting plates 2a1 are provided on the outer sides of the sleeve slider mounting seats 2b. Each connection boss 2b2 can be adjustably mounted on the inner side of the corresponding vertical mounting plate 2a1. The buckle assemblies are each composed of at least one vertically arranged buckle 2c. Both ends of each buckle 2c are bent inward to form buckle connecting arms 2c1. Connection arm slots 2b21 adapted to the corresponding buckle connecting arms 2c1 are provided on the side walls of each connection boss 2b2. Each buckle connecting arm 2c1 can be adjustably mounted in the corresponding connection arm slot 2b21. Therefore, the size of the Y-axis slide 2 in the circumferential direction can be adjusted.

[0066] By providing two Y-axis slider connection structures 2a21, the Y-axis slide 2 of this embodiment can be connected to the cross beam 6 in a central straddle mounting manner. Compared with the existing offset mounting structure of the Y-axis slide, the Y-axis slide 2 of this embodiment not only makes the overall center of gravity in the central position, so that the installation of the Y-axis slide 2 is stable and reliable, without the need for frequent alignment debugging, and is not likely to cause torsional deformation of the cross beam 6, making the static and dynamic characteristics of the three-dimensional laser cutting machine excellent. At the same time, since the Y-axis slide adopts a split structure, it can be very conveniently assembled with the Z-axis sleeve 1, and can also adapt to Z-axis sleeves 1 of different sizes by replacing buckles 2c of different sizes or adjusting the connection positions of the buckle connecting arms 2c1 and the connection arm slots 2b21, with good versatility. Moreover, the split-structured Y-axis slide can very conveniently correct the assembly error by adjusting the connection positions of the buckle connecting arms 2c1 and the connection arm slots 2b21 and the connection positions of the connection bosses 2b2 and the vertical mounting plates 2a1, and cooperate with the processing precision debugging of the later equipment.

[0067] A first bolt hole array 2b22 composed of bolt holes distributed in an array is provided on the outer side of each connection boss 2b2, that is, the first bolt hole array 2b22 is composed of bolt holes distributed in multiple rows and multiple columns in an array, and the inner ends of the bolt holes of the first bolt hole array 2b22 all penetrate through to the corresponding connection arm slots 2b21.

[0068] Meanwhile, two second bolt hole arrays 2a11 composed of bolt holes distributed in an array are formed on the direct mounting plate 2a1, that is: the second bolt hole array 2a11 is composed of bolt holes distributed in multiple rows and multiple columns in an array. A bolt hole linear array 2c11 composed of bolt holes evenly distributed along the length direction is formed on each of the buckle connecting arms 2c1.

[0069] The aperture and spacing of each adjacent bolt hole of the first bolt hole array 2b22, each adjacent bolt hole of the second bolt hole array 2a11, and each adjacent bolt hole of the bolt hole linear array 2c11 are the same, and at least one bolt hole of each bolt hole linear array 2c11 communicates with the bolt holes of the corresponding first bolt hole array 2b22 and second bolt hole array 2a11, and is locked into one body by bolts (not shown in the figure). When it is necessary to adjust the size and structure of the Y-axis slider 2, only need to take out each bolt, then adjust the relative positions of the sleeve slider mounting seat 2b and the cross beam slider mounting seat 2a, and the relative position of the buckle 2c and the sleeve slider mounting seat 2b. After reaching the position, lock the bolts again, which is simple and reliable.

[0070] In this embodiment, two first linear guides 1c extending in the vertical direction are installed on each of the two lifting guide planes 1a1. A first rack 1d extending in the vertical direction is installed on one of the lifting guide planes 1a1. Two slider mounting assemblies are correspondingly arranged on the outer sides of the two lifting guide planes 1a1, two buckle assemblies are correspondingly arranged on the outer sides of the two arc surfaces 1a5, and four Z-axis slider connection structures 2b1 are fixedly connected to the sliders of the four first linear guides 1c correspondingly. A first driving motor 3 is installed on the cross beam slider mounting seat 2a close to the first rack 1d, and a first driving gear 4 meshing with the first rack 1d is sleeved on the motor shaft of the first driving motor 3 synchronously and rotatably.

[0071] Therefore, the motor shaft of the first driving motor 3 can drive the first driving gear 4 to rotate forward and backward, so that the Z-axis sleeve 1 can rise or fall along the Y-axis slider, and the control precision is high. Further, the first driving motor 3 is preferably a servo motor, which can further improve the precision control of the lifting of the Z-axis sleeve 1.

[0072] Wherein, the Y-axis slider connection structure 2a21 includes a Y-axis slider limiting rib 2a211 integrally formed on the lower side of the slider connecting plate 2a2 and a third bolt hole array 2a212 penetrating through the slider connecting plate 2a2 in the thickness direction. The third bolt hole array 2a212 is composed of bolt holes distributed in an array. After the slider of the first linear guide 1c is positioned on the Y-axis slider limiting rib 2a211, it is connected to the third bolt hole array 2a212 by bolts, which is simple and reliable.

[0073] Similarly, two Y-direction slider connection structures 2a21 are fixedly connected to the sliders of two second linear guide rails 7 in a one-to-one correspondence. A second driving motor 9 is installed on the crossbeam slider mounting seat 2a away from the first rack 1d. A second driving gear 10 meshing with the second rack 8 is sleeved on the motor shaft of the second driving motor 9 in a synchronously rotating manner.

[0074] Therefore, by driving the second driving gear 10 to rotate forward and backward, the motor shaft of the second driving motor 9 can make the Y-axis slide seat translate along the crossbeam 6, with high control precision. Further, the second driving motor 9 is preferably a servo motor, which can further improve the precision control of the translation of the Y-axis slide seat.

[0075] Among them, the Z-direction slider connection structure 2b1 includes a Z-direction slider limiting rib 2b11 integrally formed on the side of the sleeve slider mounting seat 2b away from the slider connecting plate 2a2, and a fourth bolt hole array 2b12 penetrating through the sleeve slider mounting seat 2b in the thickness direction. The fourth bolt hole array 2b12 is composed of bolt holes distributed in an array. After the slider of the second linear guide rail 7 is positioned on the Z-direction slider limiting rib 2b11, it is connected to the fourth bolt hole array 2b12 through bolts, which is simple and reliable.

[0076] In this embodiment, the first rack 1d and each first linear guide rail 1c are respectively installed on the corresponding lifting control component installation structures. Specifically, a number of flat cylinder part reinforcing ribs 1a3 are convexly formed on the lifting guide plane 1a1, improving the structural strength of the flat cylinder part 1a. At the same time, some of the flat cylinder part reinforcing ribs 1a3 extending in the vertical direction are the lifting control component installation structures, and the first rack 1d and each first linear guide rail 1c are respectively installed on the corresponding flat cylinder part reinforcing ribs 1c extending in the vertical direction, ensuring the installation precision of the first rack 1d and each first linear guide rail 1c.

[0077] Further, a circular reinforcing flange 1a4 is convexly formed along the circumference at the top of the flat cylinder part 1a, thereby improving the structural strength at the entrance of the flat cylinder part 1a. At the same time, the upper parts of the flat cylinder part reinforcing ribs 1a3 extending in the vertical direction all extend to the circular reinforcing flange 1a4, improving the overall structural strength of the flat cylinder part 1a. And the upper ends of the first rack 1d and each first linear guide rail 1c are both abutted against the circular reinforcing flange 1a4, thereby further improving the installation precision of the first rack 1d and each first linear guide rail 1c.

[0078] Further, a plurality of annular reinforcing ribs 1b1 arranged side by side along the axial direction and axial reinforcing ribs 1b2 uniformly distributed along the circumference of each annular reinforcing rib 1b1 are convexly formed on the outer peripheral surface of the cylindrical part 1b. The annular reinforcing ribs 1b1 and the axial reinforcing ribs 1b2 together form a grid-like structure, thereby effectively improving the structural strength of the cylindrical part 1b.

[0079] Further, a first motor mounting seat 2a4 is provided on the crossbeam slider mounting seat 2a close to the first rack 1d, and the first driving motor 3 is mounted on the first motor mounting seat 2a4, ensuring the reliable mounting of the first driving motor 3. A second motor mounting seat 2a5 is provided on the crossbeam slider mounting seat 2a close to the second rack 8, and the second driving motor 9 is mounted on the second motor mounting seat 2a5, ensuring the reliable mounting of the second driving motor 9.

[0080] Please refer to Figure 3 and Figures 7-11 On both side walls of the Z-axis sleeve relief groove 6a, highly rigid linear guides 31 extending along the length direction of the crossbeam 6 are fixedly installed in parallel to each other, that is: highly rigid linear guides 31 are installed on the side walls of the two strip-shaped sliders 6b close to each other. At the same time, highly rigid support blocks 32 extending along the width direction of the crossbeam 6 are fixedly installed on both sides of the Y-axis slider 2 along the length direction of the crossbeam 6. Both ends of the highly rigid support blocks 32 are respectively fixedly connected and supported between the corresponding sliders of the two highly rigid linear guides 31, that is: support block mounting seats 2b3 adapted to the highly rigid support blocks 32 are provided at the lower parts of the four slider connection structures 2b1, and the highly rigid support blocks 32 are fixedly installed in pairs of two of the four support block mounting seats 2b3.

[0081] Therefore, in this embodiment, not only are highly rigid linear guides 31 arranged along the length direction added to both side walls of the Z-axis sleeve relief groove 6a, which is equivalent to adding two straighteners to the crossbeam 6, but also two highly rigid support blocks 32 fixedly connected to the Y-axis slider 2 and the sliders of the two highly rigid linear guides 31 are added. The two highly rigid support blocks 32 and the two highly rigid linear guides 31 form a dynamic quadrilateral support structure. By synchronously moving with the Y-axis slider 2, the two highly rigid support blocks 32 can not only serve as two dynamic stiffeners to improve the structural strength of the crossbeam 6, increase the low-order modal frequency of the crossbeam 6, thereby enhancing the static and dynamic stiffness of the crossbeam 6, but also serve as two dynamic on-line straighteners to straighten the crossbeam 6 by moving back and forth, so that even after long-term use, the crossbeam 6 is extremely difficult to bend and twist; at the same time, the two highly rigid support blocks 32 and the two highly rigid linear guides 31 also greatly increase the structural strength of the connection between the crossbeam 6 and the Y-axis slider 2, adding a new force transmission path to achieve an integrated coupling design, thereby significantly improving the load-bearing capacity of the entire crossbeam module and enabling the three-dimensional laser cutting machine to have excellent static and dynamic characteristics.

[0082] Further, on the side walls of the two strip-shaped sliding seats 6b that are close to each other, guiding and supporting grooves 6b6 adapted to the corresponding end portions of the high-rigidity support blocks 32 are recessed along the length direction. Two high-rigidity linear guide rails 31 are respectively fixedly installed at the bottoms of the corresponding guiding and supporting grooves 6b6. The two ends of the high-rigidity support blocks 32 are respectively inserted into the corresponding guiding and supporting grooves 6b6, and the upper and lower side walls of the two ends of the high-rigidity support blocks 32 are respectively in contact with the two side wall surfaces of the corresponding guiding and supporting grooves 6b6, that is: the upper side wall of the high-rigidity support block 32 and the upper side wall of the guiding and supporting groove 6b6 form a surface contact, and the lower side wall of the high-rigidity support block 32 and the lower side wall of the guiding and supporting groove 6b6 form a surface contact. Through such a design, the supporting and orthopedic effects of the two high-rigidity support blocks 32 on the two strip-shaped sliding seats 6b can be greatly improved, so that the entire crossbeam module has more excellent static and dynamic characteristics.

[0083] It should be noted that a plurality of bolt mounting holes 6b7 are provided at the bottom of the guiding and supporting groove 6b6, and the high-rigidity linear guide rail 31 is locked in the corresponding bolt mounting hole 6b7 by bolts, ensuring the reliable installation of the high-rigidity linear guide rail 31, and at the same time, the assembly process is very convenient.

[0084] Please refer to Figure 8 , vision system brackets 37 are installed at the bottoms of the high-rigidity support blocks 32, on-line adjustment motors 34 are fixedly installed on the vision system brackets 37, on-line camera brackets 35 are fixedly installed on the motor shafts of the on-line adjustment motors 34, and on-line vision cameras 36 are fixedly installed on the on-line camera brackets 35. Therefore, on-line perspective detection of the workpiece being processed can be carried out to assist in achieving higher-quality three-dimensional cutting processing. And, since the on-line adjustment motor 34 can drive the on-line vision camera 36 to rotate through the on-line camera bracket 35, the perspective detection range is greatly increased, and at the same time, detection dead angles can be avoided.

[0085] Please refer to Figure 3 , Figure 7 and Figure 8 , first oil pressure buffers 33 extending away from the Z-axis sleeve 1 are installed on the sides of the high-rigidity support blocks 32 far from the Z-axis sleeve 1, and first force sensors 34 facing the adjacent first oil pressure buffers 33 are installed on the sides of the end connection seats 6c close to the Z-axis sleeve 1. When the first oil pressure buffer 33 abuts against the corresponding first force sensor 34, the first oil pressure buffer 33 can first play a buffering role, and at the same time, can trigger the first force sensor 34 to send a stop signal, thereby avoiding the collision between the Y-axis sliding seat 2 and the crossbeam 6.

[0086] Furthermore, the high-rigidity support block 32 can be composed of multiple small blocks fixedly connected together, greatly improving the convenience of assembling with the mating part. At the same time, each small block has a hollow grid structure on the premise of meeting the structural strength requirements, ensuring the overall lightweight design of the crossbeam module, reducing the load on the crossbeam 6, and thus further reducing the risk of deformation of the crossbeam 6.

[0087] Embodiment 2:

[0088] Please refer to Figures 1-3 , a three-dimensional laser cutting machine, including a machine bed 12 and two sets of high-rigidity coupled crossbeam modules of Embodiment 1. Two crossbeams 6 are arranged in parallel across the top of the machine bed 12 in the width direction of the machine bed 12 and can move in the length direction of the machine bed 12 under the control of a crossbeam drive assembly.

[0089] Sliding table inlets and outlets 12c are provided at both ends of the machine bed 12 in the length direction, and a side inlet and outlet 12d is provided on one side of the machine bed 12 in the width direction. Specifically, the machine bed 12 includes five columns 12a and a top frame 12b installed on the tops of the five columns 12a at the same time. Among them, the top frame 12b is a rectangular frame structure. Specifically, the top frame 12b is formed by enclosing two relatively arranged main beams 12b1 and two relatively arranged side beams 12b2 into a rectangular structure. Four of the columns 12a are respectively supported at the four corners of the top frame 12b, that is: the four corners of the top frame 12b are respectively fixedly connected to the tops of the four columns 12a. Another column 12a is supported at the middle position of one of the main beams 12b1, so that sliding table inlets and outlets 12c are formed under both side beams 12b2 of the machine bed 12, that is: the two sliding table inlets and outlets 12c are located at both ends of the machine bed 12 in the length direction; at the same time, a side inlet and outlet 12d is formed under the main beam 12b1 of the machine bed 12 supported on two columns 12a, that is: the side inlet and outlet 12d is located on one side of the machine bed 12 in the width direction. Among them, the extending direction of the two main beams 12b1 is the length direction of the machine bed 12, the extending direction of the two side beams 12b2 is the width direction of the machine bed 12, and the extending direction of the column 12a is the height direction of the machine bed 12.

[0090] The above design not only ensures the structural strength of the machine bed but also facilitates the expansion and arrangement of functions at the position of the side inlet and outlet 12d.

[0091] In this embodiment, each of the columns 12a includes a column body 12a1 extending in the vertical direction, and a column top plate 12a2 and a column bottom plate 12a3 respectively fixedly installed at the top and bottom of the column body 12a1. A number of column reinforcing plates 12a4 extending in the vertical direction are installed on the circumference of the column body 12a1. The top parts of the column reinforcing plates 12a4 are respectively fixedly connected to the corresponding column top plates 12a2, and the bottom parts of the column reinforcing plates 12a4 are respectively fixedly connected to the corresponding column bottom plates 12a3. Therefore, the structural strength of each column 12a is greatly improved, thereby further improving the structural strength of the bed body 12.

[0092] Further, in order to improve the structural strength of the bed body 12, top frame reinforcing triangular ribs 12b3 are installed at the boundaries of the top frame 12b, thereby improving the structural strength of the top frame 12b. At the same time, in order to improve the connection strength between the top frame 12b and each column 12a, top frame reinforcing triangular plates 12b4 are also provided at the connection positions between the top frame 12b and each column 12a.

[0093] In this embodiment, two mutually parallel third linear guide rails 13 are installed on the top of the bed body 12. A third rack 14 parallel to each of the two third linear guide rails 13 is installed beside them, that is: a third linear guide rail 13 and a third rack 14 are installed on the top of the main beam 12b1 along its length direction. At the same time, third driving motors 15 are installed on each end connection seat 6c of the two sets of cross beam modules. Third driving gears 16 respectively meshing with the corresponding third racks 14 are sleeved on the motor shafts of the two third driving motors 15 of each set of cross beam modules in a synchronously rotating manner.

[0094] The cross beams 6 of the two sets of cross beam modules are installed on the corresponding sliders of the two third linear guide rails 13 in parallel, and the extending directions of the two cross beams 6 are perpendicular to the extending directions of the two third linear guide rails 13. Generally, the extending direction of the third linear guide rail 13 is the X direction, the extending direction of the cross beam 6 is the Y direction, and the extending direction of the Z-axis sleeve 1 is the Z direction.

[0095] Therefore, by driving the third driving gear 16 to rotate forward and backward through the motor shaft of the third driving motor 15, the translation of the cross beam 6 can be controlled with high control precision. Further, the third driving motor 15 is preferably a servo motor, which can further improve the precision control of the translation of the cross beam 6.

[0096] In the above structure, two third linear guide rails 13, two third racks 14 which are all installed at the top of the bed body 12 along the length direction of the bed body 12, and two third driving motors 15 fixedly installed on the corresponding end connecting seats 6c respectively form a crossbeam driving assembly. The two end connecting seats 6c are respectively installed on the sliders of the two third linear guide rails 13, and third driving gears 16 which are respectively meshed with the corresponding third racks 14 are synchronously rotatably sleeved on the motor shafts of the third driving motors 15.

[0097] Two second linear guide rails 7, a second rack 8 which are all installed along the width direction of the bed body 12, and a second driving motor 9 fixedly installed on the Y-axis slide 2 form a slide driving assembly. The second rack 8 and one of the second linear guide rails 7 are fixedly installed on one of the strip-shaped slides 6b in the crossbeam 6, and the other second linear guide rail 7 is fixedly installed on the other strip-shaped slide 6b in the crossbeam 6. The Y-axis slide 2 is fixedly installed on the sliders of the second linear guide rails 7, and a second driving gear 10 which is meshed with the second rack 8 is synchronously rotatably sleeved on the motor shaft of the second driving motor 9.

[0098] A first rack 1d, at least one first linear guide rail 1c which are all installed on the Z-axis sleeve 1 along the vertical direction, and a first driving motor 3 fixedly installed on the Y-axis slide 2 form a sleeve driving assembly. The Y-axis slide 2 is fixedly connected with the sliders of the first linear guide rails 1c, and a first driving gear 4 which is meshed with the first rack 1d is synchronously rotatably sleeved on the motor shaft of the first driving motor 3.

[0099] Please refer to Figure 1 and Figure 3 , second oil pressure buffers 39 and second force sensors 38 are arranged on the sides where the two crossbeams 6 are close to each other. The second oil pressure buffer 39 of one crossbeam 6 faces the second force sensor 38 of the other crossbeam 6, and the second force sensor 38 of this crossbeam 6 faces the second oil pressure buffer 39 of the other crossbeam 6. When the second oil pressure buffer 39 abuts against the corresponding second force sensor 38, the second oil pressure buffer 39 can first play a buffering role, and at the same time can also trigger the second force sensor 38 to send a shutdown signal, thereby avoiding the two crossbeams 6 from colliding.

[0100] Finally, it should be noted that the above description is only the preferred embodiment of the present invention. Under the inspiration of the present invention, those of ordinary skill in the art can make various similar representations without violating the purpose and claims of the present invention, and such transformations all fall within the protection scope of the present invention.

Claims

1. A high-rigidity coupled beam module, comprising a beam, a Y-axis slide, a Z-axis sleeve and a laser cutting head, wherein the middle portion of the beam has a Z-axis sleeve clearance groove extending along its length direction, the Y-axis slide can move along the length direction of the beam under the control of the slide drive assembly, the Z-axis sleeve can rise and fall along the Y-axis slide under the control of the sleeve drive assembly, and is inserted into the Z-axis sleeve clearance groove, the laser cutting head is installed at the bottom of the Z-axis sleeve, and is characterized in that: High-rigidity linear guide rails extending along the length direction of the beam are fixedly installed in parallel on both side walls of the Z-axis sleeve yield groove, and high-rigidity support blocks extending along the width direction of the beam are fixedly installed on both sides of the Y-axis slide along the length direction of the beam, and both ends of the high-rigidity support block are respectively fixedly connected and supported between the corresponding sliders of the two high-rigidity linear guide rails.

2. The high-rigidity coupled beam module according to claim 1, characterized in that: The crossbeam includes two strip slides parallel to each other and two end connecting seats fixedly connected to the two ends of the two strip slides. The gap between the two strip slides forms the Z-axis sleeve clearance groove. The Y-axis slide can slide along the two strip slides under the control of the slide drive assembly. The high-rigidity linear guide rail is installed on one side wall of the two strip slides close to each other.

3. The high-rigidity coupled beam module according to claim 2, characterized in that: On one side wall of the two strip slides close to each other, there are recessed guide support grooves along the length direction to match the corresponding ends of the high-rigidity support blocks. The two high-rigidity linear guide rails are fixedly installed on the bottom of the corresponding guide support grooves. The two ends of the high-rigidity support blocks are respectively embedded in the corresponding guide support grooves, and the upper and lower side walls at both ends of the high-rigidity support blocks are respectively in contact with the side wall surfaces of the corresponding guide support grooves.

4. The high-rigidity coupled beam module according to claim 2, characterized in that: The high-rigidity support block is provided with a first hydraulic buffer extending away from the Z-axis sleeve on one side thereof, and the end connecting seat is provided with a first force sensor facing the adjacent first hydraulic buffer on one side thereof close to the Z-axis sleeve.

5. The high-rigidity coupled beam module according to claim 2, characterized in that: The slide drive assembly includes two second linear guide rails, a second rack, and a second drive motor fixedly mounted on the Y-axis slide; The upper parts of the two bar-shaped slide seats have upper support surfaces that are both inclined, and the two upper support surfaces are symmetrically inclined downward in a direction away from each other. The upper support surfaces are each provided with a mounting boss, and the mounting bosses are each extended along the length direction of the corresponding upper support surface. The two mounting bosses are each protruded to form a supporting rib on one side away from each other, and the mounting bosses are each installed with the second linear guide rail extending along the length direction thereof, and the slide rails of each second linear guide rail are respectively supported on the corresponding supporting ribs; One of the upper supporting surfaces is formed with a rack mounting horizontal surface extending in the horizontal direction on a side close to the Z-shaft sleeve clearance groove, and a rack mounting pad extending in the length direction of the Z-shaft sleeve clearance groove is installed on the rack mounting horizontal surface. The top surface of the rack mounting pad is protruding on the side away from the Z-shaft sleeve clearance groove to form a rack supporting rib, and the rack mounting pad is provided with the second rack extending in its length direction, and the second rack is supported on the rack supporting rib, and the motor shaft of the second drive motor is synchronously rotated with a second drive gear meshing with the second rack.

6. The high-rigidity coupled beam module according to claim 5, characterized in that: The interior of the strip slide is a hollow structure extending along its length direction, and the interior of the strip slide is provided with a plurality of reinforcing support ribs distributed along its length direction. The upper support surface is provided with a plurality of weight-reducing openings distributed along its length direction, and each reinforcing support rib is located at both ends of the corresponding weight-reducing opening.

7. The high-rigidity coupled beam module according to claim 5, characterized in that: The sleeve drive assembly includes a first rack, at least two first linear guide rails, and a first drive motor fixedly mounted on the Y-axis slide; The Z-axis sleeves each include a flat cylinder portion with a cylindrical structure and a cylindrical portion coaxially integrally formed at the bottom of the flat cylinder portion, the cylindrical portion is provided with the laser cutting head extending downwardly, the outer walls on both sides of the width direction of the flat cylinder portion are lifting guide planes parallel to each other, the spacing between two adjacent lifting guide planes is smaller than the diameter of the corresponding cylindrical portion, each lifting guide plane is provided with at least one first linear guide rail extending in the vertical direction, one of the lifting guide planes of the Z-axis sleeve is provided with the first rack extending in the vertical direction, the Y-axis slides are respectively mounted on the outside of the corresponding flat cylinder portion, and the motor shaft of the first driving motor is provided with a first driving gear meshing with the first rack in a synchronously rotating manner.

8. The high-rigidity coupled beam module according to claim 7, characterized in that: The circumferential outer wall of the flat cylinder portion is formed by two oppositely disposed lifting guide planes and two oppositely disposed arcuate surfaces, the arcuate surfaces are all arcuate structures convex outward, and the lifting guide planes and the arcuate surfaces both extend in the vertical direction; The Y-axis sliding seat of the annular structure is surrounded by two relatively arranged slider mounting assemblies and two relatively arranged buckle assemblies. The slider mounting assemblies each include a crossbeam slider mounting seat and two sleeve slider mounting seats. The crossbeam slider mounting seat includes a vertical mounting plate extending vertically and a slider connecting plate formed by bending outward from the bottom of the vertical mounting plate. The two slider connecting plates are respectively parallel to the corresponding upper supporting surfaces and are each provided with a Y-direction slider connecting structure. The four sleeve slider mounting seats are each provided with a Z-direction slider connecting structure. The outer sides of the sleeve slider mounting seats are each provided with a connecting boss adapted to the corresponding vertical mounting plate, and each connecting boss can be respectively adjusted to be installed on the inner side of the corresponding vertical mounting plate. The buckle assemblies each consist of at least one vertically arranged buckle, and both ends of each buckle are bent inwardly to form a buckle connecting arm. The side walls of each connecting boss are each provided with a connecting arm slot adapted to the corresponding buckle connecting arm, and each buckle connecting arm can be respectively adjusted to be installed in the corresponding connecting arm slot. Two first linear guide rails extending in the vertical direction are installed on the two lifting guide planes, two slider mounting assemblies are arranged one-to-one on the outside of the two lifting guide planes, two buckle assemblies are arranged one-to-one on the outside of the two arc-shaped surfaces, four Z-direction slider connection structures are fixedly connected to the sliders of the four first linear guide rails one-to-one, and the first driving motor is installed on the beam slider mounting seat close to the first rack; The two Y-direction slider connection structures are fixedly connected to the sliders of the two second linear guide rails in a one-to-one correspondence, and the second driving motor is installed on the beam slider mounting seat away from the first rack; The lower parts of the four slider connection structures are all provided with support block mounting seats matched with the high-rigidity support blocks, and the four support block mounting seats are fixedly mounted with the high-rigidity support blocks in groups of two.

9. The high-rigidity coupled beam module according to claim 1, characterized in that: A visual system bracket is installed at the bottom of the high-rigidity support block, an online adjustment motor is fixedly installed on the visual system bracket, an online camera bracket is fixedly installed on the motor shaft of the online adjustment motor, and an online visual camera is fixedly installed on the line camera bracket.

10. A three-dimensional laser cutting machine, characterized in that: It comprises a bed and two sets of high-rigidity coupled beam modules according to any one of claims 1 to 9, wherein the two beams are parallel to each other and are arranged on the top of the bed along the width direction of the bed, and can move along the length direction of the bed under the control of the beam drive assembly; The crossbeam driving assembly includes two third linear guides and two third racks installed on the top of the bed, both extending along the length direction of the bed, and two third driving motors fixedly installed at both ends of the two crossbeams. The two ends of the crossbeam are respectively installed on the corresponding sliders of the two third linear guides, and the motor shafts of each third driving motor are synchronously rotated and are respectively equipped with third driving gears meshing with the corresponding third racks.

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