Three-dimensional laser cutting machine with bistable cross beam module

Abstract

The three-dimensional laser cutting machine comprises a lathe bed and two sets of beam modules, two third linear guide rails parallel to each other are installed at the top of the lathe bed, and third racks parallel to the two third linear guide rails are installed beside the two third linear guide rails. The cross beams of the two cross beam modules are installed on the corresponding sliding blocks of the two third linear guide rails in parallel. According to the three-dimensional laser cutting machine with the bistable cross beam modules, the cross beams of the two cross beam modules are both of hollow structures, so that the cross beams can be matched with Y-axis sliding seats of the two cross beam modules to achieve a middle straddle type installation mode on the cross beams, and the gravity centers of the Y-axis sliding seats and Z-axis sleeves are located at the center positions of the cross beams; the stability and reliability of the Y-axis sliding seat and the Z-axis sleeve are greatly improved, frequent deviation correction and debugging are not needed, torsional deformation of the cross beam is not prone to being caused, and the static and dynamic characteristics of the three-dimensional laser cutting machine are excellent.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting, and in particular to a three-dimensional laser cutting machine with a double-stable beam module. Background Art

[0002] The 3D laser cutting machine is a high-end equipment that integrates optics, mechanics, electricity and pneumatics. It is regarded as the jewel in the crown of laser processing equipment. It is mainly used for cutting holes and trimming complex stamped parts, and is widely used in aerospace, new energy vehicles and other fields.

[0003] In order to improve the efficiency of laser cutting, please refer to the Chinese patent applications with publication numbers CN116275624A and CN219310399U. The applicant in this case has designed a series of dual-channel 3D laser cutting machines with dual laser cutting heads. However, the Y-axis slide of the existing dual-channel 3D laser cutting machines is installed on one side of the beam using an offset structure, which is not only prone to overall deflection due to the offset of the center of gravity, thus requiring frequent correction and debugging, but also prone to torsional deformation of the beam after long-term use, affecting the static and dynamic characteristics of the cutting machine.

[0004] Solving the above problems has become a top priority. Summary of the invention

[0005] In view of this, the present invention provides a three-dimensional laser cutting machine with a double-stable beam module.

[0006] The technical solution is as follows:

[0007] The first aspect of the present application relates to a three-dimensional laser cutting machine with a dual-stable crossbeam module, comprising a bed and two sets of crossbeam modules, wherein two third linear guides parallel to each other are installed on the top of the bed, and third racks parallel to the two third linear guides are installed beside the two third linear guides, and the crossbeams of the two sets of crossbeam modules are installed on the corresponding sliders of the two third linear guides in parallel with each other, and the extension direction of the two crossbeams is perpendicular to the extension direction of the two third linear guides, characterized in that: the crossbeams each include 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 adjacent strip slides forms a Z-axis sleeve clearance groove extending in the horizontal direction, the two strip slides are each installed with a second linear guide extending along the length direction thereof, one of the strip slides is installed with a second rack extending along the length direction thereof, and the end connecting seats are each installed with a third drive motor, and the motor shaft of each third drive motor is synchronously rotatably provided with a third drive gear respectively meshing with the corresponding third rack;

[0008] Each of the crossbeam modules further includes a Y-axis slide, a Z-axis sleeve, and a laser cutting head. The laser cutting heads are respectively installed at the lower parts of the corresponding Z-axis sleeves and extend downward. At the upper parts of the Z-axis sleeves, a first rack and at least one first linear guide are installed extending vertically. The Y-axis slides are respectively sleeved on the upper parts of the corresponding Z-axis sleeves and are fixedly connected to the sliders of the corresponding first linear guides and second linear guides. On each of the Y-axis slides, a first driving motor and a second driving motor are installed. On the motor shafts of the first driving motors, first driving gears meshing with the corresponding first racks are synchronously sleeved. On the motor shafts of the second driving motors, second driving gears meshing with the corresponding second racks are synchronously sleeved.

[0009] For the three-dimensional laser cutting machine with the above double-stable crossbeam modules, the crossbeams of the two crossbeam modules are both of hollow structures, so that a mid-mounted straddle mounting method on the crossbeam can be realized in cooperation with the Y-axis slides of the two crossbeam modules. As a result, the centers of gravity of the Y-axis slides and the Z-axis sleeves are located at the center positions of the crossbeams, greatly improving the stability and reliability of the Y-axis slides and the Z-axis sleeves. It is neither necessary to frequently perform deviation correction debugging nor likely to cause crossbeam torsional deformation, making the static and dynamic characteristics of the three-dimensional laser cutting machine excellent.

[0010] In some embodiments, the bed body includes five columns and a top frame installed at the tops of the five columns at the same time. The top frame is surrounded by two relatively arranged main beams and two relatively arranged side beams to form a rectangular structure. Four of the columns are respectively supported at the four corners of the top frame, and the other column is supported at the middle position of one of the main beams. As a result, slide table inlets and outlets are respectively formed below the two side beams, and side inlets and outlets are formed below the main beams supported on the two columns. On the tops of the main beams, a third linear guide and a third rack are respectively installed extending along the length direction of the main beams.

[0011] In some embodiments, each of the columns includes a column body extending vertically, and a column top plate and a column bottom plate respectively fixedly installed at the top and bottom of the column body. A plurality of column strengthening plates extending vertically are installed on the circumferences of the column bodies. The tops of the column strengthening plates are respectively fixedly connected to the corresponding column top plates, and the bottoms are respectively fixedly connected to the corresponding column bottom plates.

[0012] In some embodiments, the Z-axis sleeves each include a flat tube portion having a cylindrical structure and a cylindrical portion integrally formed coaxially at the bottom of the flat tube portion. The laser cutting heads extending downward are installed in the cylindrical 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 portion. At least one first linear guide rail extending in the vertical direction is installed on each lifting guide plane. The 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.

[0013] In some embodiments, the outer circumferential 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;

[0014] The Y-axis sliding seat having an annular structure is enclosed by two oppositely arranged slider mounting assemblies and two oppositely arranged buckle assemblies. Each slider mounting assembly includes 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. Each connection boss can be adjustably installed on the inner side of the corresponding vertical mounting plate. Each buckle assembly is composed of at least one vertically arranged buckle. Both ends of each buckle are bent inward to form buckle connecting arms. Connection arm slots respectively adapted to the corresponding buckle connecting arms are formed on the side walls of each connection boss. Each buckle connecting arm can be adjustably installed in the corresponding connection arm slot;

[0015] Two first linear guide rails extending in the vertical direction are installed on both lifting guide planes. The two slider mounting assemblies are correspondingly arranged on the outer sides of the two lifting guide planes. The two buckle assemblies 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;

[0016] 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.

[0017] In some embodiments, a first bolt hole array composed of bolt holes distributed in an array is formed on the outer side of each of the connecting bosses. The inner ends of the bolt holes in the first bolt hole array all penetrate through 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 of the buckle connecting arms. The apertures and spacings 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.

[0018] In some embodiments, the Y-direction slider connection structure includes a Y-direction slider limiting rib integrally formed on the lower side of the slider connecting plate and a third bolt hole array penetrating through the slider connecting plate in the thickness direction. The third bolt hole array is composed of bolt holes distributed in an array. The sliders of the second linear guides are respectively supported on the corresponding Y-direction slider limiting ribs and are locked on the corresponding third bolt hole arrays by bolts.

[0019] The Z-direction slider connection structure includes a Z-direction slider limiting rib integrally formed on the side of the sleeve slider mounting seat away from the slider connecting plate and a fourth bolt hole array penetrating through the sleeve slider mounting seat in the thickness direction. The fourth bolt hole array is composed of bolt holes distributed in an array. The sliders of the first linear guides are respectively supported on the corresponding Z-direction slider limiting ribs and are locked on the corresponding fourth bolt hole arrays by bolts.

[0020] In some embodiments, two wire routing relief grooves facing each other are recessed on the inner wall of the flat tube portion. Both of the two wire routing relief grooves are arranged inside the corresponding lifting guide plane and extend in the vertical direction.

[0021] In some embodiments, a plurality of flat tube portion reinforcing ribs protrude on each of the lifting guide planes. Some of the flat tube portion reinforcing ribs extending in the vertical direction are the installation structures for the lifting control components. The first rack and each first linear guide are respectively installed on the corresponding flat tube portion reinforcing ribs extending in the vertical direction.

[0022] A circular reinforcing flange protrudes along the circumference at the top of the flat tube portion. The upper parts of the flat tube portion 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 are both abutted against the circular reinforcing flange.

[0023] In some embodiments, the upper parts of the two strip-shaped sliding seats of the cross beam have upper supporting surfaces that are both inclined plane structures. The two upper supporting surfaces of the cross beam are symmetrically inclined obliquely 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 all extend along the length direction of the corresponding upper supporting surface. On one side of the two mounting bosses of the cross beam that are away from each other, supporting ribs are protruding. 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of a three-dimensional laser cutting machine;

[0025] Figure 2 is a schematic structural diagram of the bed body;

[0026] Figure 3 is a schematic structural diagram of the cross beam module;

[0027] Figure 4 is a schematic structural diagram of the cross beam;

[0028] Figure 5 is a schematic structural diagram of the cross beam after removing the second linear guide and the second rack;

[0029] Figure 6 is a schematic structural diagram of one perspective of the Z-axis sleeve;

[0030] Figure 7 is a schematic structural diagram of another perspective of the Z-axis sleeve;

[0031] Figure 8 is a schematic installation structural diagram of the Z-axis sleeve, the Y-axis sliding seat, and the laser cutting head from one perspective;

[0032] Figure 9 is a schematic installation structural diagram of the Z-axis sleeve, the Y-axis sliding seat, and the laser cutting head from another perspective;

[0033] Figure 10 is a schematic structural diagram of the Y-axis sliding seat;

[0034] Figure 11 is a schematic structural diagram of one of the slider mounting components;

[0035] Figure 12 is a schematic structural diagram of the other slider mounting component;

[0036] Figure 13 is a schematic structural diagram of the sleeve slider mounting seat;

[0037] Figure 14It is a schematic diagram of the structure of the buckle. DETAILED DESCRIPTION

[0038] The present invention is further described below in conjunction with embodiments and drawings.

[0039] Embodiment 1:

[0040] like Figures 3 - 14 As shown, a beam module mainly includes a beam 6, a Y-axis slide 2, a Z-axis sleeve 1 and a laser cutting head 5.

[0041] See also Figures 3 - 5 The crossbeam 6 is composed of two strip slides 6b and two end connection seats 6c. The two strip slides 6b and the two end connection seats 6c are preferably integrally formed by a casting process, and the structural strength is high. The two strip slides 6b are both columnar or strip-shaped structures, and the two strip slides 6b are parallel to each other. The two end connection seats 6c are arranged at both ends of the two strip slides 6b, that is, one of the end connection seats 6c is fixedly connected to one end of the two strip slides 6b, and the other end connection seat 6c is fixedly connected to the other end of the two strip slides 6b.

[0042] In this embodiment, the gap between the two strip slides 6b forms a Z-axis sleeve clearance groove 6a extending in the horizontal direction, and the two ends of the Z-axis sleeve clearance groove 6a are defined by the two strip slides 6b. In addition, the upper part of the strip slide 6b is provided with a Y-direction sliding component mounting structure 6b1, and the end connecting seat 6c is provided with an X-direction driving device mounting structure 6c1.

[0043] Therefore, the crossbeam 6 of this embodiment enables the Y-axis slide 2 to be installed 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 clearance groove 6a, thereby cooperating with the Y-axis slide 2 to realize a centrally placed straddle-type installation on the crossbeam 6.

[0044] Furthermore, the upper parts of the two strip-shaped slide seats 6b have upper support surfaces 6b2 that are both inclined, and the two upper support surfaces 6b2 are symmetrically inclined downward in a direction away from each other, that is, the two upper support surfaces 6b2 together form an "eight"-shaped structure. At the same time, the Y-axis sliding assembly mounting structure 6b1 includes mounting bosses 6b11 protruding from the corresponding upper support surfaces 6b2, and the mounting bosses 6b11 extend along the length direction of the corresponding upper support surfaces 6b2. The two mounting bosses 6b11 are protruding on the side away from each other to form support ribs 6b12, and the mounting bosses 6b11 are mounted with second linear guides 7 extending along the length direction thereof, and the slide rails of each second linear guide 7 are respectively supported on the corresponding support ribs 6b12. Therefore, not only is the reliable installation of the second linear guide 7 guaranteed, but the two second linear guides 7 also together form an "eight"-shaped structure.

[0045] 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 the length direction of the rack mounting pad 11 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.

[0046] Furthermore, the inside of the strip-shaped sliding seat 6b is a hollow structure extending along its length direction to meet the requirements of lightweight design. At the same time, a number of reinforcing support ribs 6b4 distributed along the length direction are provided inside the strip-shaped sliding seat 6b, thus ensuring the structural strength of the strip-shaped sliding seat 6b.

[0047] Moreover, a number of weight-reducing openings 6b5 distributed along the length direction are formed on the side walls of the strip-shaped sliding seats 6b close to each other, and the respective reinforcing support ribs 6b4 are located at both ends of the corresponding weight-reducing openings 6b5, which not only meets the requirements of lightweight design but also facilitates the welding of the reinforcing support ribs 6b4.

[0048] In this embodiment, the X-direction driving device mounting structures 6c1 are respectively motor mounting grooves formed by concave downward from the top surfaces of the corresponding end connectors 6c to facilitate 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 of the positions of the motor mounting grooves.

[0049] Furthermore, triangular reinforcing ribs 6d are provided at the four corners of the Z-axis sleeve relief groove 6a to improve the structural strength of the connection between the strip-shaped sliding seat 6b and the end connector 6c.

[0050] Please refer to Figure 3 、 Figures 6 - 9 , 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.

[0051] 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 lifting guide planes 1a1 extending vertically in parallel, 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 beyond the two lifting guide planes 1a1. In addition, on each of the lifting guide planes 1a1, there is a lifting control component installation structure extending vertically.

[0052] The flat tube portion 1a is used to cooperate with the Y-axis slide 2, that is, the flat tube portion 1a can move up and down along the Y-axis slide 2. The cylindrical tube portion 1b is used to install 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, and usually has one or two or more rotational degrees of freedom, which can be selected according to actual needs.

[0053] 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 both 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 use cost.

[0054] On the inner wall of the flat tube portion 1a, two wire routing relief grooves 1a2 facing each other are recessed, and the two wire routing relief grooves 1a2 are both arranged on the inner side of the corresponding lifting guide plane 1a1 and extend vertically. Therefore, while ensuring the structural strength of the flat tube portion 1a itself, the middle part of the flat tube portion 1a has two wire routing relief grooves 1a2 through the expanded-profile section, which is convenient for wire routing.

[0055] 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 surrounded 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 vertically. 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 compared to the conventional flat plate structure.

[0056] In this embodiment, since both of the two lifting guide planes 1a1 protrude laterally in the horizontal direction from the cylindrical portion 1b, the internal space of the flat tube portion 1a can be effectively increased, facilitating the passage of more wire harnesses without increasing the width of the flat tube portion 1a.

[0057] The Z-axis sleeve 1 of this embodiment is integrally formed by a casting process, with high structural strength.

[0058] Please refer to Figure 3 、 Figures 10 - 14 , the Y-axis slide 2 has an annular structure. Specifically, the Y-axis slide 2 is formed by enclosing two oppositely arranged slider mounting components and two oppositely 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.

[0059] 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 of the two 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.

[0060] 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).

[0061] Therefore, when the Y-axis slide 2 translates, it can apply pressure to the crossbeam 6 through the way of inclined plane cooperation. Compared with the structure where the slider connecting plate 2a2 is perpendicular to the vertical mounting plate 2a1 applying pressure to the crossbeam 6, the way of this embodiment can reduce the pressure borne by the crossbeam 6, thus making the structural stability of the crossbeam 6 better and reducing the risk of the middle part of the crossbeam 6 being concave and bent.

[0062] 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, which can effectively improve the structural strength of the crossbeam slider mounting seat 2a and prevent deformation.

[0063] 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, and 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 provided on the side walls of each connection boss 2b2, and 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 can be adjusted.

[0064] The Y - axis slider 2 of this embodiment can be connected to the cross beam 6 by a central straddle - type mounting method 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 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 slider adopts a split - type 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 - type 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.

[0065] 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.

[0066] At the same time, two second bolt - hole arrays 2a11 composed of bolt holes distributed in an array are provided on the straight mounting plates 2a1, that is: the second bolt - hole array 2a11 is 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.

[0067] 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 all 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 into one body by bolts (not shown in the figure). When it is necessary to adjust the size and structure of the Y-axis slide 2, only need to take out the bolts, 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.

[0068] Please refer to Figure 3 , 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 on the outer sides of the two lifting guide planes 1a1, and two buckle assemblies are correspondingly arranged on the outer sides of 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 sleeved on the motor shaft of the first driving motor 3 synchronously.

[0069] 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 slide, 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.

[0070] 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.

[0071] 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 sleeved on the motor shaft of the second driving motor 9 synchronously.

[0072] 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 cross beam 6 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.

[0073] 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 connection 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.

[0074] In this embodiment, the first rack 1d and each first linear guide 1c are respectively installed on the corresponding lifting control component installation structure. Specifically, a plurality of flat cylinder part reinforcing ribs 1a3 protrude from 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 1c are respectively installed on the 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.

[0075] Further, a circular reinforcing flange 1a4 protrudes 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 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.

[0076] Further, a plurality of annular reinforcing ribs 1b1 arranged side by side along the axial direction and axial reinforcing ribs 1b2 evenly distributed circumferentially along each annular reinforcing rib 1b1 protrude from 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.

[0077] Further, a first motor mounting seat 2a4 is provided on the cross beam slider mounting seat 2a close to the first rack 1d, and the first drive motor 3 is installed on the first motor mounting seat 2a4, ensuring the reliable installation of the first drive motor 3. A second motor mounting seat 2a5 is provided on the cross beam slider mounting seat 2a close to the second rack 8, and the second drive motor 9 is installed on the second motor mounting seat 2a5, ensuring the reliable installation of the second drive motor 9.

[0078] Example 2:

[0079] Please refer to Figure 1 and Figure 2 , a three-dimensional laser cutting machine with a double-stable crossbeam module, which mainly includes a bed body 12 and two sets of crossbeam modules described in Example 1.

[0080] The bed body 12 includes five columns 12a and a top frame 12b installed at 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 fixed at 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 slide table inlets and outlets 12c are formed under both side beams 12b2 of the bed body 12, that is: the two slide table inlets and outlets 12c are located at both ends of the bed body 12 in the length direction; at the same time, a side inlet and outlet 12d is formed under the main beam 12b1 of the bed body 12 supported on two columns 12a, that is: the side inlet and outlet 12d is located on one side of the bed body 12 in the width direction.

[0081] The above design not only ensures the structural strength of the bed body, but also is easy to expand and arrange functions at the position of the side inlet and outlet 12d.

[0082] In this embodiment, each column 12a includes a column body 12a1 extending in the vertical direction, 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 strengthening plates 12a4 extending in the vertical direction are installed on the circumference of the column body 12a1. The tops of the column strengthening plates 12a4 are respectively fixedly connected to the corresponding column top plates 12a2, and the bottoms of the column strengthening plates 12a4 are respectively fixedly connected to the corresponding column bottom plates 12a3. Therefore, the structural strength of each column 12a is greatly improved, and thus the structural strength of the bed body 12 is further improved.

[0083] Furthermore, in order to improve the structural strength of the bed body 12, top frame strengthening 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 strengthening triangular plates 12b4 are also provided at the connection positions between the top frame 12b and each column 12a.

[0084] In this embodiment, two mutually parallel third linear guide rails 13 are installed on the top of the bed body 12, and third racks 14 parallel to them are installed beside the two third linear guide rails 13, that is, one third linear guide rail 13 and one 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 the respective end connectors 6c of the two sets of crossbeam modules, and third driving gears 16 meshing with the corresponding third racks 14 are sleeved on the motor shafts of the two third driving motors 15 of each set of crossbeam modules in a synchronously rotating manner.

[0085] The crossbeams 6 of the two sets of crossbeam modules are installed on the corresponding sliders of the two third linear guide rails 13 in parallel, and the extending directions of the two crossbeams 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 crossbeam 6 is the Y direction, and the extending direction of the Z-axis sleeve 1 is the Z direction.

[0086] 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 crossbeam 6 can be controlled with high control precision. Further, the third driving motor 15 preferably adopts a servo motor, which can further improve the precision control of the translation of the crossbeam 6.

[0087] 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 three-dimensional laser cutting machine with a dual-stable crossbeam module, comprising a bed and two sets of crossbeam modules, wherein two third linear guide rails parallel to each other are installed on the top of the bed, and third racks parallel to the two third linear guide rails are installed beside the two third linear guide rails, and the crossbeams of the two sets of crossbeam modules are installed on the corresponding sliders of the two third linear guide rails in parallel with each other, and the extension direction of the two crossbeams is perpendicular to the extension direction of the two third linear guide rails, characterized in that: The crossbeams each include two parallel bar slides and two end connection seats fixedly connected to the two ends of the two bar slides, the gap between the two adjacent bar slides forms a Z-axis sleeve clearance groove extending in the horizontal direction, the two bar slides are each installed with a second linear guide extending in the length direction thereof, one of the bar slides is installed with a second rack extending in the length direction thereof, the end connection seats are each installed with a third drive motor, and the motor shaft of each third drive motor is synchronously rotated with a third drive gear respectively meshing with the corresponding third rack; The crossbeam modules also include a Y-axis slide, a Z-axis sleeve and a laser cutting head. The laser cutting heads are respectively installed on the lower part of the corresponding Z-axis sleeve so as to extend downward. The upper part of the Z-axis sleeve is provided with a first rack and at least one first linear guide extending in the vertical direction. The Y-axis slides are respectively mounted on the upper part of the corresponding Z-axis sleeve and are respectively fixedly connected to the sliders of the corresponding first linear guide and the second linear guide. The Y-axis slides are respectively installed with a first drive motor and a second drive motor. The motor shafts of the first drive motors are synchronously rotated with a first drive gear meshing with the corresponding first rack. The motor shafts of the second drive motors are synchronously rotated with a second drive gear meshing with the corresponding second rack.

2. The three-dimensional laser cutting machine with a bistable beam module according to claim 1, characterized in that: The bed includes five columns and a top frame installed on the top of the five columns at the same time. The top frame is surrounded by two oppositely arranged main beams and two oppositely arranged side beams to form a rectangular structure, wherein four columns are supported at the four corners of the top frame at corresponding ends, and another column is supported at the middle position of one of the main beams, so that slide inlets and outlets are formed under the two side beams and side inlets and outlets are formed under the main beam supported on the two columns, and a third linear guide rail and a third rack are installed on the top of the main beam along its length.

3. The three-dimensional laser cutting machine with a bistable beam module according to claim 2, characterized in that: The columns all include a column body extending in a vertical direction, and a column top plate and a column bottom plate respectively fixedly installed on the top and top of the column body; a plurality of column reinforcement plates extending in the vertical direction are installed on the circumference of the column body; the top of each column reinforcement plate is respectively fixedly connected to the corresponding column top plate, and the bottom is respectively fixedly connected to the corresponding column bottom plate.

4. The three-dimensional laser cutting machine with a bistable beam module according to claim 1, characterized in that: 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 of the first linear guide rails 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, and the Y-axis slides are respectively mounted on the outside of the corresponding flat cylinder portion.

5. The three-dimensional laser cutting machine with a bistable beam module according to claim 4, 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.

6. The three-dimensional laser cutting machine with a bistable beam module according to claim 5, 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.

7. The three-dimensional laser cutting machine with a bistable beam module according to claim 5, characterized in that: The Y-direction slider connection structure includes a Y-direction slider limiting rib integrally formed on the lower side of the slider connection plate and a third bolt hole array penetrating the slider connection plate in the thickness direction, wherein the third bolt hole array is composed of bolt holes distributed in an array, and the sliders of each second linear guide rail are respectively supported on the corresponding Y-direction slider limiting rib and locked on the corresponding third bolt hole array by bolts; The Z-direction slider connection structure includes a Z-direction slider limiting rib integrally formed on the side of the sleeve slider mounting seat away from the slider connecting plate and a fourth bolt hole array penetrating the sleeve slider mounting seat along the thickness direction, the fourth bolt hole array is composed of bolt holes distributed in an array, and the sliders of each first linear guide rail are respectively supported on the corresponding Z-direction slider limiting rib and locked on the corresponding fourth bolt hole array by bolts.

8. The three-dimensional laser cutting machine with a bistable beam module according to claim 4, characterized in that: The inner wall of the flat cylinder portion is recessed to form 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.

9. The three-dimensional laser cutting machine with a bistable beam module according to claim 4, 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 three-dimensional laser cutting machine with a bistable beam module according to claim 1, characterized in that: The upper parts of the two strip-shaped slides of the crossbeam have upper supporting surfaces that are both inclined structures. The two upper supporting surfaces of the crossbeam 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 of the crossbeam are protruding from one side away from each other to form supporting ribs. Second linear guide rails extending along the length direction thereof are installed on the mounting bosses, and the slide rails of each second linear guide rail are respectively supported on the corresponding supporting ribs.

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