Hollow cross beam and cross beam module of three-dimensional laser cutting machine

Abstract

The invention discloses a hollow cross beam and a cross beam module of a three-dimensional laser cutting machine, and the cross beam module mainly comprises a hollow cross beam, a Y-axis sliding seat, a Z-axis sleeve and a laser cutting head. The middle straddle type installation mode of the Y-axis sliding seat on the hollow cross beam is achieved, so that the gravity center of the Y-axis sliding seat and the gravity center of the Z-axis sleeve are located at the center position of the hollow cross beam, the stability and reliability of the Y-axis sliding seat and the Z-axis sleeve are greatly improved, frequent deviation rectification and debugging are not needed, torsional deformation of the cross beam is not prone to being caused, and the service life of the cross beam is prolonged. The static and dynamic characteristics of the three-dimensional laser cutting machine are excellent; moreover, the flat cylinder part can be designed to be ultrathin on the premise that the wiring requirement is met, so that the width of the Y-axis sliding seat is correspondingly very small, the width of the Z-axis sleeve abdicating groove of the hollow cross beam is very small, the requirement of lightweight design is met, the overall structural strength of the hollow cross beam is ensured, and the service life of the hollow cross beam is prolonged. And the hollow cross beam is not easy to bend and deform.

Description

Technical Field

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

[0002] Three-dimensional laser cutting machines are high-end equipment integrating optics, mechanics, electricity, and pneumatics, and are regarded as the pearl on the crown of laser processing equipment. They are mainly used for punching holes and trimming edges of complex stamping parts, and are 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 whole to skew due to the offset of the center of gravity, so frequent alignment debugging is required, 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] Solving the above problems has become an urgent task. Summary of the Invention

[0005] In view of this, the present invention provides a hollow crossbeam and a crossbeam module of a three-dimensional laser cutting machine.

[0006] The technical solution is as follows:

[0007] The first aspect of the present application relates to a hollow crossbeam of a three-dimensional laser cutting machine, including a crossbeam body. The crossbeam body includes two parallel strip-shaped slide seats and two end connecting seats fixedly connected to both ends of the two strip-shaped slide seats. The gap between the two strip-shaped slide seats forms a Z-axis sleeve accommodation groove extending in the horizontal direction. Y-direction sliding component installation structures are provided on the upper parts of the strip-shaped slide seats, and X-direction driving device installation structures are provided on the end connecting seats.

[0008] By using the above hollow crossbeam of the three-dimensional laser cutting machine, the Y-axis slide can be installed on the two Y-direction sliding component installation structures, and at the same time, the Z-axis sleeve can be inserted into the Z-axis sleeve accommodation groove, so as to be able to cooperate with the Y-axis slide to achieve a central straddle-mounted installation method on the hollow crossbeam.

[0009] In some embodiments, the upper parts of the two strip-shaped sliding seats have upper supporting surfaces that are both inclined plane structures. The two upper supporting surfaces are symmetrically inclined downward away from each other. The Y-direction sliding component mounting structures each include mounting bosses protruding from the corresponding upper supporting surfaces. The mounting bosses extend along the length direction of the corresponding upper supporting surfaces. On one side of the two mounting bosses away from each other, supporting ribs protrude. Second linear guides extending along their length directions are mounted on the mounting bosses, and the slide rails of each second linear guide are respectively supported on the corresponding supporting ribs.

[0010] In some embodiments, at least one of the upper supporting surfaces forms a rack mounting horizontal plane extending in the horizontal direction on the side close to the Z-axis sleeve relief groove. A rack mounting pad extending along the length direction of the Z-axis sleeve relief groove is mounted on one of the rack mounting horizontal planes. On the top surface of the rack mounting pad, a rack supporting rib protrudes on the side away from the Z-axis sleeve relief groove. A second rack extending along its length direction is mounted on the rack mounting pad, and the second rack is supported on the rack supporting rib.

[0011] In some embodiments, the interiors of the strip-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 strip-shaped sliding seats. A number of weight-reducing openings distributed along their length directions are formed in the side walls of the strip-shaped sliding seats close to each other, and each reinforcing support rib is located at both ends of the corresponding weight-reducing opening.

[0012] In some embodiments, the X-direction driving device mounting structures are respectively motor mounting grooves formed by recessing from the top surfaces of the corresponding end connectors. A number of triangular reinforcing ribs are provided on the groove walls of the two motor mounting grooves.

[0013] The second aspect of the present application relates to a crossbeam module, including a Y-axis sliding seat, a Z-axis sleeve, a laser cutting head, and the hollow crossbeam of the above three-dimensional laser cutting machine. The Z-axis sleeve includes a flat tube portion in a cylindrical structure and a cylindrical portion integrally formed coaxially at the bottom of the flat tube portion. The laser cutting head extending downward is mounted in the cylindrical portion. The outer walls on both sides in the width direction of the flat tube portion are parallel lifting guide planes. The distance between the two lifting guide planes is smaller than the diameter of the cylindrical portion. At least one first linear guide extending in the vertical direction is mounted on each of the two lifting guide planes. A first rack extending in the vertical direction is mounted on one of the lifting guide planes. The Y-axis sliding seat is sleeved outside the flat tube portion, and the Y-axis sliding seat is fixedly connected to the sliders of each first linear guide. A first driving motor and a second driving motor are mounted on the Y-axis sliding seat. A first driving gear meshing with the first rack is synchronously rotatably sleeved on the motor shaft of the first driving motor. A second driving gear meshing with the second rack is synchronously rotatably sleeved on the motor shaft of the second driving motor.

[0014] The above beam module not only has all the advantages of the hollow beam of the above-mentioned 3D laser cutting machine, but also the Y-axis slide of the beam module realizes the central straddle installation on the hollow beam, so that the center of gravity of the Y-axis slide and the Z-axis sleeve is at the center of the hollow beam, which greatly improves the stability and reliability of the Y-axis slide and the Z-axis sleeve. It does not need frequent deviation correction and debugging, and is not easy to cause torsional deformation of the beam, making the static and dynamic characteristics of the 3D laser cutting machine excellent; and the flat tube part can be designed to be ultra-thin while meeting the wiring requirements. , so that the width of the Y-axis slide is also correspondingly very small, and then the width of the Z-axis sleeve give way groove of the hollow beam is also very small, which not only meets the requirements of lightweight design, but also can ensure the overall structural strength of the hollow beam, so that the hollow beam is not prone to bending and deformation, reducing the maintenance frequency and use cost. At the same time, since the flat cylinder part of the Z-axis sleeve and the Y-axis slide form a special-shaped shaft hole, there will be no relative rotation between the two, so that there will be no problem of wrong installation during assembly, and the assembly tolerance can be greatly reduced, shortening the assembly and debugging cycle.

[0015] In some embodiments, 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;

[0016] 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.

[0017] Two first linear guide rails extending in the vertical direction are installed on both lifting guide planes. Two slider mounting assemblies are correspondingly arranged outside the two lifting guide planes. Two buckle assemblies are correspondingly arranged outside the two arc surfaces. Four Z-direction slider connection structures are fixedly connected to the sliders of the four first linear guide rails one by one. The first drive motor is installed on the crossbeam slider mounting seat close to the first rack.

[0018] Two Y-direction slider connection structures are fixedly connected to the sliders of the two second linear guide rails one by one. The second drive motor is installed on the crossbeam slider mounting seat far from the first rack.

[0019] In some embodiments, a first bolt hole array composed of bolt holes distributed in an array is formed on the outer side of each connecting boss. The inner ends of the bolt holes of the first bolt hole array all penetrate to the corresponding connecting arm slots. Two second bolt hole arrays composed of bolt holes distributed in an array are formed on the straight mounting plates. A bolt hole linear array composed of bolt holes evenly distributed along the length direction is formed on each buckle connecting arm. The aperture and spacing of adjacent bolt holes in the first bolt hole array, adjacent bolt holes in the second bolt hole array, and adjacent bolt holes in the bolt hole linear array are the same. And at least one bolt hole in each bolt hole linear array communicates with the bolt holes in the corresponding first bolt hole array and second bolt hole array, and they are locked together by bolts.

[0020] In some embodiments, a plurality of flat cylinder part reinforcing ribs protrude from the lifting guide planes. Some of the flat cylinder part reinforcing ribs extending in the vertical direction are the installation structures for the lifting control components. The first rack and each first linear guide rail are respectively installed on the corresponding flat cylinder part reinforcing ribs extending in the vertical direction;

[0021] A circular reinforcing flange protrudes along the circumference at the top of the flat cylinder part. The upper parts of the flat cylinder part reinforcing ribs extending in the vertical direction all extend to the circular reinforcing flange. The upper ends of the first rack and each first linear guide rail are both abutted against the circular reinforcing flange.

[0022] In some embodiments, two wire routing relief grooves facing each other are recessed on the inner wall of the flat cylinder part. The two wire routing relief grooves are both arranged on the inner side of the corresponding lifting guide plane and extend in the vertical direction;

[0023] A plurality of annular reinforcing ribs arranged side by side along the axial direction and axial reinforcing ribs evenly distributed circumferentially along each annular reinforcing rib protrude on the outer peripheral surface of the cylindrical part. The annular reinforcing ribs and the axial reinforcing ribs together form a grid-like structure. Description of the Drawings

[0024] Figure 1It is a structural schematic diagram of a crossbeam module;

[0025] Figure 2 It is a structural schematic diagram of a hollow crossbeam;

[0026] Figure 3 It is a structural schematic diagram of the hollow crossbeam after removing the second linear guide and the second rack;

[0027] Figure 4 It is a structural schematic diagram of one perspective of the Z-axis sleeve;

[0028] Figure 5 It is a structural schematic diagram of another perspective of the Z-axis sleeve;

[0029] Figure 6 It is a structural schematic diagram of the installation of the Z-axis sleeve, the Y-axis slide and the laser cutting head from one perspective;

[0030] Figure 7 It is a structural schematic diagram of the installation of the Z-axis sleeve, the Y-axis slide and the laser cutting head from another perspective;

[0031] Figure 8 It is a structural schematic diagram of the Y-axis slide;

[0032] Figure 9 It is a structural schematic diagram of one of the slider mounting components;

[0033] Figure 10 It is a structural schematic diagram of another slider mounting component;

[0034] Figure 11 It is a structural schematic diagram of the sleeve slider mounting seat;

[0035] Figure 12 It is a structural schematic diagram of the buckle. Detailed implementation manners

[0036] The present invention will be further described below in conjunction with embodiments and the drawings.

[0037] As Figures 1 - 12 shown, a crossbeam module mainly includes a hollow crossbeam, a Y-axis slide 2, a Z-axis sleeve 1 and a laser cutting head 5.

[0038] Please refer to Figures 1 - 3, the hollow crossbeam includes a crossbeam body 6, which is composed of two strip-shaped sliding seats 6b and two end connecting seats 6c. The two strip-shaped sliding seats 6b and the two end connecting seats 6c are preferably integrally formed by casting process, with high structural strength. Both of the two strip-shaped sliding seats 6b are columnar or strip-shaped structures, and the two strip-shaped sliding seats 6b are parallel to each other. The two end connecting seats 6c are arranged at both ends of the two strip-shaped sliding seats 6b, that is: one of the end connecting seats 6c is fixedly connected to one end of the two strip-shaped sliding seats 6b, and the other end connecting seat 6c is fixedly connected to the other end of the two strip-shaped sliding seats 6b.

[0039] In this embodiment, the gap between the two strip-shaped sliding seats 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 sliding seats 6b. Moreover, Y-direction sliding component mounting structures 6b1 are arranged on the upper parts of the strip-shaped sliding seats 6b, and X-direction driving device mounting structures 6c1 are arranged on the end connecting seats 6c.

[0040] Therefore, the hollow crossbeam of this embodiment enables the Y-axis sliding seat 2 to be mounted on the two Y-direction sliding component mounting structures 6b1, and at the same time the Z-axis sleeve 1 can be inserted into the Z-axis sleeve relief groove 6a, so as to be able to cooperate with the Y-axis sliding seat 2 to achieve a central straddle mounting method on the hollow crossbeam.

[0041] Furthermore, the upper parts of the two strip-shaped sliding seats 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 mounting structures 6b1 each include mounting bosses 6b11 protruding from the corresponding upper support surfaces 6b2. The mounting bosses 6b11 all extend along the length direction of the corresponding upper support surfaces 6b2. Support ribs 6b12 protrude from the sides of the two mounting bosses 6b11 away from each other. Second linear guide rails 7 extending along their length directions are mounted on the mounting bosses 6b11. The slide rails of each of the second linear guide rails 7 are respectively supported on the corresponding support ribs 6b12. Therefore, not only the reliable installation of the second linear guide rails 7 is ensured, but also the two second linear guide rails 7 together form an "eight" shape structure.

[0042] In this embodiment, at least one upper support surface 6b2 is formed with a rack mounting horizontal surface 6b3 extending in the horizontal direction on the side close to the Z-axis sleeve relief groove 6a. A rack mounting pad 11 extending along the length direction of the Z-axis sleeve relief groove 6a is mounted on one of the rack mounting horizontal surfaces 6b3. A rack support rib 11a protrudes from the top surface of the rack mounting pad 11 on the side away from the Z-axis sleeve relief groove 6a. A second rack 8 extending along its length direction is mounted on the rack mounting pad 11, and 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.

[0043] Furthermore, the interiors of the strip-shaped sliding seats 6b are all hollow structures extending along their length directions to meet the requirements of lightweight design. At the same time, a number of reinforcing support ribs 6b4 distributed along their length directions are provided inside the strip-shaped sliding seats 6b, thus ensuring the structural strength of the strip-shaped sliding seats 6b.

[0044] Moreover, a number of weight-reducing openings 6b5 distributed along their length directions are formed on the side walls of the strip-shaped sliding seats 6b close to each other. Each of the reinforcing support ribs 6b4 is located at both ends of the corresponding weight-reducing opening 6b5, not only meeting the requirements of lightweight design but also facilitating the welding of the reinforcing support ribs 6b4.

[0045] In this embodiment, the X-direction driving device mounting structures 6c1 are respectively motor mounting grooves formed by concaving downward from the top surfaces of the corresponding end connectors 6c, facilitating the installation of the motors. At the same time, a number of triangular reinforcing ribs 6c2 are provided on the groove walls of the two motor mounting grooves, ensuring the structural strength at the positions of the motor mounting grooves.

[0046] Furthermore, triangular reinforcing ribs 6d are provided at the four corners of the Z-axis sleeve relief groove 6a to improve the structural strength at the connection between the strip-shaped sliding seat 6b and the end connector 6c.

[0047] Please refer to Figure 1 、 Figures 4 - 7 , 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.

[0048] In this embodiment, the flat tube portion 1a and the cylindrical tube portion 1b are coaxially arranged. Most importantly, lifting guide planes 1a1 extending in the vertical direction are provided in parallel on both sides in the width direction of the flat tube portion 1a. Moreover, 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, lifting control component mounting structures extending in the vertical direction are provided on the lifting guide planes 1a1.

[0049] The flat cylinder part 1a is used to cooperate with the Y-axis slide 2, that is, the flat cylinder part 1a can move up and down along the Y-axis slide 2. The cylindrical part 1b is used to install the laser cutting head 5. Specifically, the laser cutting head 5 extends downward from the cylindrical part 1b. Among them, the laser cutting head 5 adopts a traditional laser cutting head that can emit laser, and usually has one or two or more rotational degrees of freedom, which can be selected according to actual needs.

[0050] Therefore, on the premise of meeting the wiring requirements, the flat cylinder part 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 a special-shaped shaft-hole fit through the flat cylinder part 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 cylinder part 1a and the Y-axis slide 2 are very small, the width of the Z-axis sleeve relief groove 6a of the hollow cross beam that cooperates with them can be greatly reduced, thereby effectively improving the structural strength of the hollow cross beam, not easily occurring bending deformation problems, and reducing the maintenance frequency and usage cost.

[0051] Two mutually facing wiring relief grooves 1a2 are recessed on the inner wall of the flat cylinder part 1a, and both wiring relief grooves 1a2 are arranged along the vertical direction and are located inside the corresponding lifting guide planes 1a1. Therefore, while ensuring the structural strength of the flat cylinder part 1a itself, the middle part of the flat cylinder part 1a has two wiring relief grooves 1a2 through the enlarged-diameter profile, which is convenient for wiring.

[0052] Furthermore, the cross-section of the flat cylinder part 1a is approximately rectangular. Specifically, the circumferential outer wall of the flat cylinder part 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 planar structures, and the arc surfaces 1a5 are both outwardly convex arc structures. The lifting guide planes 1a1 and the arc surfaces 1a5 both extend along the vertical direction. Among them, because the arc surface 1a5 is an arc-shaped thin plate structure, it is not only easy to cast, but also has higher structural strength than the conventional flat plate structure.

[0053] In this embodiment, since both of the two lifting guide planes 1a1 protrude from the cylindrical part 1b horizontally to both sides, the internal space of the flat cylinder part 1a can be effectively increased, so that more wire harnesses can pass through without increasing the width of the flat cylinder part 1a.

[0054] The Z-axis sleeve 1 of this embodiment is integrally formed by a casting process, and has high structural strength.

[0055] See also Figure 1 , Figures 8 - 12 Specifically, the Y-axis slide 2 is enclosed by two relatively disposed slider mounting assemblies and two relatively disposed buckle assemblies, that is, the two slider mounting assemblies are opposite to each other, the two buckle assemblies are opposite to each other, and the two slider mounting assemblies and the two buckle assemblies are arranged in a rectangular shape, thereby forming a ring structure together.

[0056] Each slider mounting assembly includes a crossbeam slider mounting seat 2a and two sleeve slider mounting seats 2b. The crossbeam slider mounting seat 2a includes a vertical mounting plate 2a1 extending vertically and a slider connecting plate 2a2 formed by bending outward from the bottom of the vertical mounting plate 2a1. The two slider connecting plates 2a2 are parallel to the corresponding upper supporting surfaces 6b2, and the two slider connecting plates 2a2 are provided with a Y-direction slider connecting structure 2a21. The slider connecting plate 2a2 can be arranged perpendicular to the vertical mounting plate 2a1 or inclined to the vertical mounting plate 2a1.

[0057] Furthermore, the slider connecting plate 2a2 of this embodiment preferably extends outward from the lower edge of the corresponding vertical mounting plate 2a1 and tilts downward, so that the two slider connecting plates 2a2 of the two slider mounting assemblies together form an "eight"-shaped structure (compatible with the second linear guide rail 7).

[0058] Therefore, when the Y-axis slide 2 translates, it can apply pressure to the hollow beam through the inclined surface matching method. Compared with the pressure applied to the hollow beam by the structure of the slider connecting plate 2a2 perpendicular to the vertical mounting plate 2a1, the method of this embodiment can reduce the pressure on the hollow beam, thereby making the structural stability of the hollow beam better and reducing the risk of concave bending in the middle part of the hollow beam.

[0059] 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, thereby effectively improving the structural strength of the beam slider mounting seat 2a and avoiding deformation.

[0060] Z - direction 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 connection arms 2c1. Connection arm slots 2b21 adapted to the corresponding buckle connection arms 2c1 are formed on the side walls of each connection boss 2b2. Each buckle connection arm 2c1 can be adjustably mounted in the corresponding connection arm slot 2b21. Therefore, the size of the Y - axis slider 2 in the circumferential direction is adjustable.

[0061] The Y - axis slider 2 of this embodiment can be connected to the hollow cross - beam in a central straddle - type mounting manner by providing two Y - direction slider connection structures 2a21. Compared with the existing offset mounting structure of the Y - axis slider, the Y - axis slider 2 of this embodiment not only makes the overall center of gravity in the central position, thus making the installation of the Y - axis slider 2 stable and reliable, without the need for frequent alignment debugging, and not easily causing torsional deformation of the hollow cross - beam, making the static and dynamic characteristics of the three - dimensional laser cutting machine excellent. At the same time, since the Y - axis slider 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 position between the buckle connection arm 2c1 and the connection arm slot 2b21, with good versatility. Moreover, the split - structure Y - axis slider can very conveniently correct the assembly error and coordinate with the machining precision debugging of the later equipment by adjusting the connection position between the buckle connection arm 2c1 and the connection arm slot 2b21 and the connection position between the connection boss 2b2 and the vertical mounting plate 2a1.

[0062] On the outer sides of the connection bosses 2b2, a first bolt - hole array 2b22 composed of bolt holes distributed in an array is provided, 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.

[0063] At the same time, two second bolt - hole arrays 2a11 composed of bolt holes distributed in an array are provided on the vertical mounting plates 2a1, that is: the second bolt - hole arrays 2a11 are composed of bolt holes distributed in multiple rows and multiple columns in an array. On the buckle connection arms 2c1, a bolt - hole linear array 2c11 composed of bolt holes evenly distributed along the length direction is provided.

[0064] The aperture diameters and spacings of adjacent bolt holes in the first bolt hole array 2b22, adjacent bolt holes in the second bolt hole array 2a11, and adjacent bolt holes in the linear bolt hole array 2c11 are the same. And at least one bolt hole in each linear bolt hole array 2c11 communicates with the bolt holes in the corresponding first bolt hole array 2b22 and second bolt hole array 2a11, and they are locked together 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 crossbeam slider mounting seat 2a, as well as the relative position of the buckle 2c and the sleeve slider mounting seat 2b. After it is in place, lock the bolts again, which is simple and reliable.

[0065] Please refer to Figure 1 , in this embodiment, two first linear guide rails 1c extending in the vertical direction are installed on both 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 outside the two lifting guide planes 1a1, and two buckle assemblies are correspondingly arranged outside the two arc surfaces 1a5. Four Z-axis slider connection structures 2b1 are fixedly connected to the sliders of the four first linear guide rails 1c correspondingly. A first driving motor 3 is installed on the crossbeam slider mounting seat 2a close to the first rack 1d, and a first driving gear 4 meshing with the first rack 1d is synchronously rotatably sleeved on the motor shaft of the first driving motor 3.

[0066] Therefore, by driving the first driving gear 4 to rotate forward and backward through the motor shaft of the first driving motor 3, the Z-axis sleeve 1 can be lifted or lowered along the Y-axis slider, and the control accuracy 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.

[0067] Among them, 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 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 rail 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.

[0068] Similarly, two Y-axis slider connection structures 2a21 are fixedly connected to the sliders of the two second linear guide rails 7 correspondingly. A second driving motor 9 is installed on the crossbeam slider mounting seat 2a far from the first rack 1d, and a second driving gear 10 meshing with the second rack 8 is synchronously rotatably sleeved on the motor shaft of the second driving motor 9.

[0069] Therefore, the motor shaft of the second drive motor 9 can drive the second drive gear 10 to rotate forward and backward, enabling the Y-axis slide to translate along the hollow cross beam with high control precision. Further, the second drive motor 9 is preferably a servo motor, which can further improve the precision control of the translation of the Y-axis slide.

[0070] 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 7 is positioned on the Z-direction slider limiting rib 2b11, it is connected to the fourth bolt hole array 2b12 by bolts, which is simple and reliable.

[0071] In this embodiment, the first rack 1d and each first linear guide 1c are respectively installed on the corresponding lifting control component mounting structure. Specifically, a plurality 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 mounting structures, and the first rack 1d and each first linear guide 1c are respectively installed on the corresponding flat cylinder part reinforcing ribs 1c extending in the vertical direction, ensuring the installation accuracy of the first rack 1d and each first linear guide 1c.

[0072] 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 each flat cylinder part reinforcing rib 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. Moreover, the upper ends of the first rack 1d and each first linear guide 1c are both in contact with the circular reinforcing flange 1a4, thereby further improving the installation accuracy of the first rack 1d and each first linear guide 1c.

[0073] Further, a plurality of annular reinforcing ribs 1b1 arranged side by side in the axial direction and axial reinforcing ribs 1b2 evenly distributed in the circumferential direction of each annular reinforcing rib 1b1 are convexly formed on the outer peripheral surface of the cylindrical part 1b. Each annular reinforcing rib 1b1 and each axial reinforcing rib 1b2 together form a grid-like structure, thereby effectively improving the structural strength of the cylindrical part 1b.

[0074] Furthermore, 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.

[0075] 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 departing from the purpose and claims of the present invention. Such transformations all fall within the protection scope of the present invention.

Claims

1. A hollow beam for a three-dimensional laser cutting machine, comprising a beam body, characterized in that: The crossbeam body includes two parallel strip slides and two end connecting seats fixedly connected to the two ends of the two strip slides. The gap between the two strip slides forms a Z-axis sleeve clearance groove extending in the horizontal direction. The upper part of the strip slide is provided with a Y-axis sliding component installation structure, and the end connecting seats are provided with an X-axis drive device installation structure.

2. The hollow crossbeam of the three-dimensional laser cutting machine according to claim 1, characterized in that: The upper parts of the two bar-shaped slides have upper supporting surfaces that are both inclined structures. The two upper supporting surfaces are symmetrically inclined downward in a direction away from each other. The Y-axis sliding component mounting structures include mounting bosses protruding from the corresponding upper supporting surfaces. The mounting bosses extend along the length direction of the corresponding upper supporting surfaces. The two mounting bosses have supporting ribs protruding from one side away from each other. The mounting bosses are each installed with a second linear guide extending along the length direction thereof. The slide rails of each second linear guide are respectively supported on the corresponding supporting ribs.

3. The hollow crossbeam of the three-dimensional laser cutting machine according to claim 2, characterized in that: At least 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 one of the rack mounting horizontal surfaces, and a rack supporting rib is formed on the top surface of the rack mounting pad protruding on the side away from the Z-shaft sleeve clearance groove, and a second rack extending in its length direction is installed on the rack mounting pad, and the second rack is supported on the rack supporting rib.

4. The hollow crossbeam of the three-dimensional laser cutting machine according to claim 1, 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. A plurality of weight-reducing openings distributed along its length direction are opened on one side wall of the strip slide close to each other, and each reinforcing support rib is located at both ends of the corresponding weight-reducing opening.

5. The hollow crossbeam of the three-dimensional laser cutting machine according to claim 1, characterized in that: The X-axis drive device mounting structures are respectively motor mounting grooves formed by being recessed from the top surfaces of the corresponding end connection seats, and a plurality of triangular reinforcing ribs are arranged on the groove walls of the two motor mounting grooves.

6. A beam module, characterized in that: The invention comprises a Y-axis slide, a Z-axis sleeve, a laser cutting head and a hollow crossbeam of a three-dimensional laser cutting machine as described in claim 3, wherein the Z-axis sleeve comprises a flat cylinder portion with a cylindrical structure and a cylindrical portion coaxially integrally formed at the bottom of the flat cylinder portion, the laser cutting head extending downward is installed in the cylindrical portion, 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 the two lifting guide planes is smaller than the diameter of the cylindrical portion, at least one first linear guide extending in the vertical direction is installed on the two lifting guide planes, one of the lifting guide planes is installed with a first rack extending in the vertical direction, the Y-axis slide is mounted outside the flat cylinder portion, the Y-axis slide is fixedly connected to the sliders of each first linear guide rail, the Y-axis slide is mounted with a first drive motor and a second drive motor, the motor shaft of the first drive motor is synchronously rotatably mounted with a first drive gear meshing with the first rack, the motor shaft of the second drive motor is synchronously rotatably mounted with a second drive gear meshing with the second rack.

7. The crossbeam module according to claim 6, 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.

8. The crossbeam module according to claim 7, characterized in that: A first bolt hole array consisting of array-distributed bolt holes is provided on the outer side of the connecting boss, and the inner ends of each bolt hole of the first bolt hole array penetrate into the corresponding connecting arm slots. Two second bolt hole arrays consisting of array-distributed bolt holes are provided on the straight mounting plates, and a bolt hole linear array consisting of bolt holes evenly distributed along the length direction is provided on the buckle connecting arm. The apertures and spacings of adjacent bolt holes of the first bolt hole array, adjacent bolt holes of the second bolt hole array, and adjacent bolt holes of the bolt hole linear array are the same, and each bolt hole linear array has at least one bolt hole connected to the bolt hole of the corresponding first bolt hole array and second bolt hole array, and are locked together by bolts.

9. The crossbeam module according to claim 6, characterized in that: A plurality of flat cylinder reinforcement ribs are protruded on the lifting guide plane, wherein some of the flat cylinder reinforcement ribs extending in the vertical direction are the installation structure of the lifting control assembly, and the first rack and each first linear guide rail are respectively installed on the corresponding flat cylinder reinforcement ribs extending in the vertical direction; The top of the flat cylinder portion protrudes circumferentially to form a circle of annular reinforcing flanges, the upper parts of the flat cylinder portion reinforcing ribs extending in the vertical direction extend to the annular reinforcing flanges, and the upper ends of the first rack and each first linear guide rail abut against the annular reinforcing flanges.

10. The crossbeam module according to claim 6, characterized in that: The inner wall of the flat cylinder is concavely formed with two mutually opposite wiring clearance grooves, and the two wiring clearance grooves are both arranged on the inner side of the corresponding lifting guide plane extending in the vertical direction; The outer circumferential surface of the cylindrical portion is protruded with a plurality of annular reinforcing ribs arranged side by side in the axial direction and axial reinforcing ribs uniformly distributed circumferentially along the annular reinforcing ribs, and the annular reinforcing ribs and the axial reinforcing ribs together form a grid structure.

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