Beam adjusting device of laser cutting machine

Abstract

The utility model relates to a beam adjusting device of a laser cutting machine. The cross beam comprises a cross beam body, wherein the cross beam body comprises a first end and a second end which are axially and oppositely arranged; a sliding structure is arranged on the first moving seat, and the first end of the cross beam body is connected to the first moving seat in a sliding mode in the axial direction through the sliding structure; and the second end of the cross beam body is fixedly connected to the second moving seat. The sliding structure is arranged at one axial end of the cross beam, and the other axial end of the cross beam is fixed, so that stress can be freely released when the cross beam is heated to deform, and the influence of deformation on cutting precision is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of high-power laser cutting, in particular to a beam adjusting device for a laser cutting machine. Background Art

[0002] At present, in the field of high-power laser cutting, with the increasing demand of industrial production, especially in the fields of heavy manufacturing, shipbuilding and large steel structure processing, the demand for large-format and high-precision laser cutting equipment is increasing. To meet these demands, laser cutting machines need to have sufficient power and precision to improve processing efficiency.

[0003] The beam of a laser cutting machine spans the width of the workbench. The beam (on which a guide rail is provided) serves to support the lateral (axial) movement of the laser cutting head. During the cutting process, the beam moves longitudinally along the longitudinal guide rail of the cutting machine, driving the laser head to perform the cutting operation of the plate in the designated area on the workbench. When a large-format and high-power laser cutting machine performs continuous cutting under extreme working conditions, due to the continuous heating of the plate, the heat will concentrate at the bottom of the beam. The traditional beam and the moving seat are of a completely fixed structure, and there are the following problems: in the case of heat concentration, the beam cannot effectively release the axial displacement, and the displacement caused by this thermal stress will inevitably cause the deformation of the beam, thereby affecting the cutting precision. In severe cases, this deformation may even lead to the scrapping of the beam. Summary of the Invention

[0004] Therefore, the utility model provides a beam adjusting device for a laser cutting machine. By setting a sliding structure at one axial end of the beam and fixing the other axial end of the beam, the beam can freely release stress when it is deformed by heat, avoiding the influence of deformation on the cutting precision.

[0005] To solve the above technical problems, the utility model provides a beam adjusting device for a laser cutting machine, including:

[0006] A beam body, including a first end and a second end which are oppositely arranged axially;

[0007] A first moving seat, on which a sliding structure is provided, and the first end of the beam body is axially slidably connected to the first moving seat through the sliding structure;

[0008] A second moving seat, and the second end of the beam body is fixedly connected to the second moving seat.

[0009] In an embodiment of the utility model, the sliding structure includes a guide rail installed on the first moving seat and arranged along the axial direction of the beam body, and at least one slider slidably connected to the guide rail and connected to the bottom of the first end of the beam body.

[0010] In an embodiment of the present utility model, two parallel guide rails are provided.

[0011] In an embodiment of the present utility model, mounting platforms are respectively convexly provided at the bottoms of the first end and the second end of the crossbeam body.

[0012] In an embodiment of the present utility model, a guiding groove is axially provided on the mounting platform at the bottom of the first end of the crossbeam body, and a guiding convex block cooperating with the guiding groove is axially provided at the upper end of the first moving seat.

[0013] In an embodiment of the present utility model, the mounting platform at the bottom of the second end of the crossbeam body is connected to the second moving seat by bolts or by welding.

[0014] In an embodiment of the present utility model, the crossbeam body is hollow and has a rectangular cross-section. The crossbeam body includes an upper connecting plate and a lower connecting plate which are oppositely arranged, two side connecting plates which are oppositely arranged, and sealing plates arranged at both axial ends. Weight-reducing holes are distributed on the upper connecting plate and / or the lower connecting plate and / or the side connecting plates and / or the sealing plates.

[0015] In an embodiment of the present utility model, reinforcing rib plates respectively connected to the upper connecting plate, the lower connecting plate and the two side connecting plates are axially and spacedly arranged inside the crossbeam body.

[0016] In an embodiment of the present utility model, a cutting head driving device is further included. A first sliding rail and an axial rack are axially provided on the upper connecting plate. A second sliding rail axially arranged along the crossbeam body is provided on one of the side connecting plates. The cutting head driving device includes a sliding bracket respectively slidably connected to the first sliding rail and the second sliding rail, an axial driving motor installed on the sliding bracket, and a vertical driving module installed on the sliding bracket. An output end of the axial driving motor is connected with an axial driving gear meshing with the axial rack. The vertical driving module is used for driving the lifting movement of the cutting table.

[0017] In an embodiment of the present utility model, longitudinal driving devices are provided on both the first moving seat and the second moving seat. The longitudinal driving devices each include a longitudinal driving motor and a longitudinal driving gear connected to a driving end of the longitudinal driving motor.

[0018] The above technical solution of the present utility model has the following advantages compared with the prior art:

[0019] A beam adjusting device for a laser cutting machine according to the present utility model is provided with a sliding structure at one axial end of the beam, so that when the beam is deformed by heat, stress can be freely released, avoiding the influence of beam deformation caused by thermal stress on the cutting accuracy, thereby improving the cutting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the content of the present utility model easier to be clearly understood, the following further describes the present utility model in detail according to the specific embodiments of the present utility model and in conjunction with the accompanying drawings.

[0021] Figure 1 It is a schematic structural diagram of the beam adjusting device of the laser cutting machine of the present utility model.

[0022] Figure 2 It is a schematic structural diagram of the first moving seat of the present utility model.

[0023] Figure 3 It is a schematic structural diagram of the beam body of the present utility model.

[0024] Description of the reference numerals in the drawings:

[0025] 1. Beam body; 11. Guide groove; 12. Upper connecting plate; 13. Lower connecting plate; 14. Side connecting plate; 15. Sealing plate; 16. Weight reduction hole; 17. Reinforcing rib plate;

[0026] 2a. First moving seat; 2b. Second moving seat; 211. Installation table; 212. Guide projection;

[0027] 3. Sliding structure; 31. Guide rail; 32. Slide block;

[0028] 4. Cutting head driving device; 41. First slide rail; 42. Axial rack; 43. Second slide rail; 44. Sliding bracket; 45. Axial driving motor; 46. Vertical driving module; 47. Axial driving gear;

[0029] 5. Longitudinal driving motor; 51. Longitudinal driving gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following further describes the present utility model in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and can implement it, but the embodiments cited are not used as a limitation to the present utility model.

[0031] In the present utility model, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present utility model, rather than indicating or implying that the technical features referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0032] In the present utility model, the meaning of "a number of" is one or more, the meaning of "a plurality of" is more than two, and understandings such as "greater than", "less than", and "exceeding" do not include the corresponding number; understandings such as "above", "below", and "within" include the corresponding number. In the description of the present utility model, if there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0033] In the present utility model, unless otherwise clearly defined, terms such as "arranged", "installed", and "connected" should be understood in a broad sense. For example, they can be directly connected, or indirectly connected through an intermediate medium; they can be fixedly connected, or detachably connected, or integrally formed; they can be mechanically connected, or electrically connected or capable of communicating with each other; they can be the communication inside two components or the interaction relationship between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in the present utility model in combination with the specific content of the technical solution.

[0034] Refer to Figure 1 As shown in the figure, a crossbeam adjusting device of a laser cutting machine according to the present utility model includes:

[0035] A crossbeam body 1, including a first end and a second end axially arranged opposite to each other;

[0036] A first moving seat 2a, on which a sliding structure 3 is arranged, and the first end of the crossbeam body 1 is axially slidably connected to the first moving seat 2a through the sliding structure 3;

[0037] A second moving seat 2b, and the second end of the crossbeam body 1 is fixedly connected to the second moving seat 2b.

[0038] The traditional fixed structure is prone to cause permanent deformation of the crossbeam under the action of thermal stress, and even be scrapped. However, through the design of the sliding structure 3 of the present device, the thermal stress can be effectively released, avoiding damage to the crossbeam due to deformation, thereby extending the service life of the equipment.

[0039] In one embodiment, the sliding structure 3 includes guide rails 31 installed on the first moving seat 2a and arranged along the axial direction of the crossbeam body 1, and at least one slider 32 slidably connected to the guide rails 31 and connected to the bottom of the first end of the crossbeam body 1. There are two parallel guide rails 31.

[0040] In one embodiment, mounting platforms 211 are respectively convexly provided at the bottoms of the first end and the second end of the crossbeam body 1.

[0041] In one embodiment, a guide groove 11 is axially provided on the mounting table 211 at the bottom of the first end of the crossbeam body 1, and a guide projection 212 that cooperates with the guide groove 11 is axially provided at the upper end of the first moving seat 2a.

[0042] In one embodiment, the mounting table 211 at the bottom of the second end of the crossbeam body 1 is connected to the second moving seat 2b by bolts or by welding.

[0043] The device adopts a modular design, in which the sliding structure 3 is connected by a guide rail 31 and a slider 32, and the fixed structure is connected by bolts or welding. This design not only simplifies the installation process of the crossbeam, making the assembly faster and more convenient, but also improves the maintainability.

[0044] In one embodiment, the crossbeam body 1 is hollow and has a rectangular cross-section. The crossbeam body 1 includes an upper connecting plate 12 and a lower connecting plate 13 that are oppositely arranged, two side connecting plates 14 that are oppositely arranged, and sealing plates 15 arranged at both axial ends. Weight-reducing holes 16 are distributed on the upper connecting plate 12 and / or the lower connecting plate 13 and / or the side connecting plates 14 and / or the sealing plates 15.

[0045] Specifically, reinforcing rib plates 17 that are respectively connected to the upper connecting plate 12, the lower connecting plate 13, and the two side connecting plates 14 are axially arranged at intervals inside the crossbeam body 1.

[0046] The crossbeam body 1 adopts a hollow rectangular structure, and through the design of the weight-reducing holes 16 and the reinforcing rib plates 17, the weight of the crossbeam is reduced on the premise of ensuring strength, thereby reducing the movement inertia and improving the overall dynamic response performance.

[0047] In one embodiment, referring to Figure 3 As shown, a cutting head driving device 4 is further included. A first slide rail 41 and an axial rack 42 arranged along the axial direction of the crossbeam body 1 are provided on the upper connecting plate 12. A second slide rail 43 arranged along the axial direction of the crossbeam body 1 is provided on one of the side connecting plates 14. The cutting head driving device 4 includes a sliding bracket 44 that is respectively slidably connected to the first slide rail 41 and the second slide rail 43, an axial driving motor 45 installed on the sliding bracket 44, and a vertical driving module 46 installed on the sliding bracket 44. An axial driving gear 47 that meshes with the axial rack 42 is connected to the output end of the axial driving motor 45. The vertical driving module 46 is used to drive the lifting movement of the cutting table.

[0048] The device integrates a cutting head drive system. Through the first slide rail 41, the second slide rail 43 and the axial rack 42 provided on the crossbeam body 1, precise multi-directional movement of the cutting head is achieved. Cooperating with the axial and vertical drive motors, efficient sheet cutting operations can be performed.

[0049] In one embodiment, referring to Figure 2 As shown, both the first moving seat 2a and the second moving seat 2b are provided with longitudinal drive devices. The longitudinal drive devices include longitudinal drive motors 5 and longitudinal drive gears 51 connected to the drive ends of the longitudinal drive motors 5.

[0050] It can be understood that the first moving seat 2a and the second moving seat can cooperate with the longitudinal guide rail 31, and the longitudinal drive gear 51 can cooperate with the longitudinal gear on the longitudinal guide rail 31, so as to drive the crossbeam to move longitudinally through the longitudinal drive device.

[0051] This device not only includes the function of crossbeam adjustment, but also integrates a cutting head drive device 4 and a longitudinal drive device, thus realizing multi-dimensional adjustment of the crossbeam and improving the operation flexibility and efficiency of the laser cutting machine.

[0052] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the examples, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A beam adjustment device for a laser cutting machine, characterized in that: include: A crossbeam body (1) comprising a first end and a second end which are axially opposite to each other; A first movable seat (2a), wherein a sliding structure (3) is provided on the first movable seat (2a), and the first end of the crossbeam body (1) is axially slidably connected to the first movable seat (2a) via the sliding structure (3); A second movable seat (2b), the second end of the crossbeam body (1) being fixedly connected to the second movable seat (2b).

2. A laser cutting machine beam adjustment device according to claim 1, characterized in that: The sliding structure (3) comprises a guide rail (31) mounted on the first movable seat (2a) and arranged axially along the crossbeam body (1), and at least one sliding block (32) slidably connected to the guide rail (31) and connected to the bottom of the first end of the crossbeam body (1).

3. A laser cutting machine beam adjustment device according to claim 2, characterized in that: The guide rails (31) are provided with two parallel ones.

4. The laser cutting machine beam adjustment device according to claim 1, characterized in that: A mounting platform (211) is protrudingly provided at the bottom of each of the first end and the second end of the crossbeam body (1).

5. The laser cutting machine beam adjustment device according to claim 4, characterized in that: The mounting platform (211) at the bottom of the first end of the beam body (1) is provided with a guide groove (11) along the axial direction, and the upper end of the first movable seat (2a) is provided with a guide protrusion (212) matching the guide groove (11) along the axial direction.

6. The laser cutting machine beam adjustment device according to claim 4, characterized in that: The mounting platform (211) at the bottom of the second end of the crossbeam body (1) is connected to the second movable seat (2b) by bolts or by welding.

7. The laser cutting machine beam adjustment device according to claim 1, characterized in that: The crossbeam body (1) is hollow and has a rectangular cross section. The crossbeam body (1) comprises an upper connecting plate (12) and a lower connecting plate (13) arranged opposite to each other, two side connecting plates (14) arranged opposite to each other, and sealing plates (15) arranged at two axial ends. The upper connecting plate (12) and / or the lower connecting plate (13) and / or the side connecting plate (14) and / or the sealing plate (15) are provided with weight-reducing holes (16) distributed thereon.

8. The laser cutting machine beam adjustment device according to claim 7, characterized in that: Reinforcing rib plates (17) respectively connected to the upper connecting plate (12), the lower connecting plate (13) and the two side connecting plates (14) are arranged at intervals along the axial direction in the cross beam body (1).

9. The laser cutting machine beam adjustment device according to claim 7, characterized in that: The invention also comprises a cutting head driving device (4), wherein the upper connecting plate (12) is provided with a first slide rail (41) and an axial rack (42) arranged axially along the crossbeam body (1), wherein one of the side connecting plates (14) is provided with a second slide rail (43) arranged axially along the crossbeam body (1), and the cutting head driving device (4) comprises a sliding bracket (44) respectively slidably connected to the first slide rail (41) and the second slide rail (43), an axial driving motor (45) mounted on the sliding bracket (44), and a vertical driving module (46) mounted on the sliding bracket (44), wherein the output end of the axial driving motor (45) is connected to an axial driving gear (47) meshing with the axial rack (42), and the vertical driving module (46) is used to drive the lifting movement of the cutting table.

10. The laser cutting machine beam adjustment device according to claim 1, characterized in that: The first movable seat (2a) and the second movable seat (2b) are both provided with a longitudinal drive device, wherein the longitudinal drive device comprises a longitudinal drive motor (5) and a longitudinal drive gear (51) connected to a drive end of the longitudinal drive motor (5).

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