A laser cutting machine beam structure

Abstract

The utility model provides a kind of laser cutting machine beam structure, it is related to laser cutting technical field, including beam main part and slide frame;Beam main part is hollow, and first guide rail for facilitating the sliding of slide frame is provided on beam main part, first driving motor is provided on slide frame, and driving gear is provided on the output end of first driving motor, rack for being connected with driving gear is provided on beam main part;The side of first guide rail close to rack is provided with guide rail pressing block.The utility model structure is simple, directly adopt hollow lightweight beam main part structure, with greater width, high stability, can be on the side of beam main part and be provided for facilitating the first guide rail and rack for facilitating the displacement of slide frame that slide frame for facilitating installation has laser cutting head to slide, and guide rail pressing block is provided on the side of first guide rail close to rack, ensure that guide rail does not occur deformation, and laser cutting head displacement stability is good.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting technology, and in particular, to a crossbeam structure for a laser cutting machine. Background Technology

[0002] The application of laser cutting machines (laser tube cutting machines) has developed rapidly in the domestic market in recent years, especially in the field of sheet metal cutting and processing. They have advantages such as high cutting accuracy, fast cutting speed, adaptability to various complex graphics, automatic layout, smooth cut, and low processing cost, and have well replaced punching machines, flame cutting and plasma cutting equipment.

[0003] When lasers cut sheet metal parts, the sheet metal parts are generally stationary while the laser cutting head cuts them. Therefore, the laser cutting head needs to be able to move in two directions. This requires a mechanism on the laser cutting machine to move the laser cutting head in two mutually perpendicular horizontal directions. Typically, a crossbeam structure is installed on the laser cutting machine. The crossbeam structure can move horizontally along the X-axis of the machine, and the laser cutting head moves horizontally along the Y-axis on the crossbeam. For example, Chinese invention patent CN111098038A discloses a crossbeam and a laser cutting machine. The crossbeam includes a sliding part, an elastic connecting member, and a main body. The sliding part is equipped with a first sliding mechanism that slides with a first bed. One end of the elastic connecting member is installed on the sliding part. The main body has a first end and a second end. The first end is connected to the other end of the elastic connecting member, and the second end is equipped with a second sliding mechanism that slides with the second bed. In the above crossbeam, because the elastic connecting member has a certain deformation capacity, the first end can be considered as the sliding movable end during the sliding of the crossbeam. When the first guide rail and the second guide rail are not parallel, the elastic connector can deform accordingly based on the amount of non-parallelism, thereby compensating for the change in distance between the first guide rail and the second guide rail, and preventing the first guide rail, the second guide rail and the crossbeam from being stretched and deformed or even damaged.

[0004] However, the above-mentioned crossbeam structure still has the following drawbacks: it can only ensure that the crossbeam does not deform when it is moved on the machine tool, but the crossbeam itself has a very special structure. The combined mass of the crossbeam and the laser cutting head is large. For example, the common iron crossbeam has high stress and is very heavy, which affects the speed and is also prone to downward bending deformation. If the crossbeam is set as a lightweight crossbeam structure, it can only be a narrow-width crossbeam or a light and cheap crossbeam, which is also prone to deformation. The strength of the displacement guide rail of the laser cutting head on the crossbeam is also not high, and the stability of laser cutting displacement control is poor.

[0005] Therefore, in order to solve the above problems, it is necessary for us to design a crossbeam structure for a laser cutting machine. Utility Model Content

[0006] The purpose of this utility model is to provide a crossbeam structure for a laser cutting machine. The structure is simple, directly adopting a hollow, lightweight crossbeam main body structure, which has a large width and high stability. A first guide rail for facilitating the sliding of the carriage with the laser cutting head and a rack for facilitating the displacement of the carriage can be set on the upper side of the crossbeam main body. A guide rail pressure block is set on the side of the first guide rail near the rack to ensure that the guide rail will not deform and the displacement stability of the laser cutting head is good.

[0007] To achieve the above objectives, this utility model employs the following technical solution: A crossbeam structure for a laser cutting machine includes a crossbeam body and a carriage; the crossbeam body is a hollow component, and a first guide rail is provided on the crossbeam body to facilitate the sliding of the carriage; a first drive motor is provided on the carriage, and a drive gear is provided at the output end of the first drive motor; a rack is provided on the crossbeam body for connecting with the drive gear; a guide rail pressure block is provided on the side of the first guide rail near the rack.

[0008] As a preferred embodiment of this utility model, a support strip is provided inside the main body of the crossbeam.

[0009] As a preferred embodiment of this invention, the side of the main body of the crossbeam is provided with a second guide rail for facilitating the sliding of the carriage.

[0010] As a preferred embodiment of this utility model, the crossbeam body is provided with a first boss for facilitating the installation of the first guide rail, a second boss for facilitating the installation of the rack, an installation groove for facilitating the installation of the guide rail pressure block, and a third boss for facilitating the installation of the second guide rail.

[0011] As a preferred embodiment of the present invention, a first limiting protrusion is provided on the side of the first protrusion away from the second protrusion, and a second limiting protrusion is provided on the side of the second protrusion away from the first protrusion.

[0012] As a preferred embodiment of this invention, a widened area is provided on the side of the crossbeam body away from the second guide rail.

[0013] As a preferred embodiment of this utility model, the main body of the crossbeam is provided with a limiting block for sliding and limiting the carriage.

[0014] As a preferred embodiment of this invention, the driving gear is a helical gear.

[0015] As a preferred embodiment of this utility model, the end of the crossbeam body is provided with a displacement frame for connecting to a laser cutting machine tool, and the displacement frame is provided with a second drive motor for driving the crossbeam body to move.

[0016] As a preferred embodiment of this utility model, the main body of the crossbeam is an integrally formed aerospace aluminum component.

[0017] The advantages of this utility model for a laser cutting machine crossbeam structure are as follows: the structure is simple, directly adopting a hollow, lightweight crossbeam main body structure, which has a large width and high stability. A first guide rail for facilitating the sliding of the carriage with the laser cutting head and a rack for facilitating the displacement of the carriage can be set on the upper side of the crossbeam main body. A guide rail pressure block is set on the side of the first guide rail near the rack to ensure that the guide rail will not deform and the displacement stability of the laser cutting head is good. Attached Figure Description

[0018] Figure 1 A three-dimensional structural schematic diagram of an embodiment of a crossbeam structure for a laser cutting machine according to a utility model; Figure 2 This is a side view of the overall structure of an embodiment of a crossbeam structure for a laser cutting machine according to a utility model. Figure 3 This is a schematic diagram of the main body of the crossbeam in one embodiment of the crossbeam structure of a laser cutting machine according to this utility model. Detailed Implementation

[0019] The following are specific embodiments of the present invention, which further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0020] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement and steps of the modules and steps set forth in these embodiments do not limit the scope of the present invention.

[0021] At the same time, it should be understood that, for ease of description, the process shown in the attached diagram is not performed in isolation, but rather involves multiple steps that overlap.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0024] Techniques, methods, and systems known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and systems should be considered part of this utility model specification.

[0025] Example 1: As Figures 1 to 3 The image shown is merely one embodiment of this utility model. A laser cutting machine crossbeam structure includes a crossbeam body 1 and a slide 2. The crossbeam body 1 is a hollow component. A first guide rail 11 is provided on the crossbeam body 1 to facilitate the sliding of the slide 2. A first drive motor 21 is provided on the slide 2. A drive gear 22 is provided at the output end of the first drive motor 21. A rack 12 is provided on the crossbeam body 1 for connecting with the drive gear 22. A guide rail pressure block 13 is provided on the side of the first guide rail 11 near the rack 12.

[0026] In this utility model, the bed structure of the laser cutting machine tool includes two side wall plates and a connecting square tube for connecting the two side wall plates. The crossbeam structure is set on the upper part of the two side wall plates. The crossbeam structure includes a crossbeam body 1 and a slide 2. The two ends of the crossbeam body 1 rest on the upper ends of the two side wall plates respectively. The crossbeam body 1 is set roughly perpendicular to the side wall plates. The crossbeam body 1 slides on the side wall plates along the X-axis, while the slide 2 slides on the crossbeam body 1 along the Y-axis. The laser cutting head located on the slide 2 cuts the sheet metal parts on the bed of the laser cutting machine tool. That is, the area between the two side wall plates is the laser cutting area.

[0027] In the crossbeam structure, the laser cutting head on the slide 2 is actually used for laser cutting. The slide 2 moves on the crossbeam body 1, thereby moving the laser cutting head. Therefore, the crossbeam body 1 needs to be equipped with a first guide rail 11 to facilitate the sliding of the slide 2. Of course, the side wall plate is equipped with a side wall plate guide rail to facilitate the sliding of the crossbeam body 1. The first guide rail 11 is perpendicular to the side wall plate guide rail. Here we mainly describe the connection between the crossbeam body 1 and the slide 2. The slide 2 is equipped with a first slider for connecting with the first guide rail 11. The first slider has a semi-enclosed structure to grip the first guide rail 11. In addition, the slide 2 is equipped with a first drive motor 21 for driving the slide 2 to slide along the crossbeam body 1.

[0028] Here, the output end of the first drive motor 21 faces downward, and a drive gear 22 is provided on the output shaft of the output end of the first drive motor 21. A rack 12 for connecting with the drive gear 22 is provided on the crossbeam body 1. The rack 12 and the first guide rail 11 are both located on the upper surface of the crossbeam body 1 and are arranged in parallel. When the first drive motor 21 rotates, the drive gear 22 meshes with the rack 12, causing the slide 2 to slide along the first guide rail 11 on the crossbeam body 1.

[0029] It should be noted that the main body 1 of the crossbeam is a hollow component, making the entire main body 1 lighter. This not only does not affect the sliding speed of the laser cutting head, but also allows the main body 1 to be wider, providing sufficient space for the rack 12 and the first guide rail 11 to be located on the upper surface of the main body 1 and arranged in parallel. The wider design of the main body 1 compared to ordinary crossbeams also improves the stability of the main body 1. This stability includes the stability of the main body 1 itself (the main body 1 is not easily deformed), the stability of the main body 1's displacement along the side wall (the contact surface between the main body 1 and the side wall is larger), the stability of the connection between the carriage 2 and the main body 1 (the laser cutting head is located on the side in front of the main body 1 in the direction of displacement to cut the sheet metal parts on the lower side of the main body 1. The weight of the laser cutting head will inevitably deviate from the main body and be located in front of the main body in the direction of displacement. The wider main body 1 allows for a larger contact surface between the carriage 2 and the main body 1, resulting in a more stable connection), and the stability of the carriage 2's displacement along the main body 1.

[0030] Finally, in order to further ensure the stability of the carriage 2's displacement along the crossbeam body 1 and to prevent the first guide rail 11 from deforming, a guide rail pressure block 13 is provided on the side of the first guide rail 11 near the rack 12. In fact, the rack 12 is located in front of the first guide rail 11 in the displacement direction near the crossbeam body 1. In this way, the guide rail pressure block 13 can abut against the front of the first guide rail 11, which can effectively prevent the first guide rail 11 from deforming due to the center of gravity of the carriage 2 being in front for a long time, thereby ensuring the stability of laser cutting.

[0031] Example 2, still as Figures 1 to 3 The illustration shown is only one embodiment of this utility model. Based on Embodiment 1, in the crossbeam structure of a laser cutting machine of this utility model, a support strip 14 is provided inside the crossbeam body 1. In fact, after the crossbeam body 1 is hollow, in order to ensure the strength of the entire crossbeam body 1 and prevent it from being easily deformed or broken, a support strip 14, that is, a reinforcing rib, needs to be provided in the cavity inside the hollow crossbeam body 1. The support strip 14 includes a vertically arranged first support strip and a horizontally arranged second support strip. There is at least one first support strip and one second support strip. When there is only one first support strip and one second support strip, a cross-shaped support structure is formed inside the crossbeam body 1 (e.g., Figure 2(As shown); when there is one first support bar and three second support bars, a shaped support structure is formed inside the main body 1 of the crossbeam; when there are two first support bars and two second support bars, a shaped support structure is formed inside the main body 1 of the crossbeam.

[0032] In addition, since the carriage 2 slides on the crossbeam body 1 and the laser cutting head is inevitably located on the side of the crossbeam body 1, in order to ensure the stable connection between the carriage 2 and the crossbeam body 1, in addition to the first guide rail 15 for connection, a second guide rail 15 should also be provided on the side of the crossbeam body 1 near the laser cutting head to facilitate the sliding of the carriage 2. The first guide rail 11 and the second guide rail 15 are arranged in parallel. The carriage 2 is also provided with a second slider for connection with the second guide rail 15. The second slider has a semi-enclosed structure to grip the second guide rail 15.

[0033] To further enhance the structural stability of the main body 1 of the crossbeam, a widening area 16 is provided on the side of the main body 1 away from the second guide rail 15 (that is, the side away from the laser cutting head). The widening area 16 has the same thickness as the main body 1 of the crossbeam and is used to widen the main body 1 of the crossbeam. Moreover, the widening area 16 is also hollow and does not require a supporting structure inside.

[0034] The first guide rail 11 and the rack 12 are both located on the upper side of the "non-widened area" of the main body of the crossbeam 1, or in other words, the first guide rail 11 and the rack 12 are both located on the upper side of the area of ​​the main body of the crossbeam 1 with the support bar 14 structure.

[0035] Of course, the number of widened areas 16 is at least one, and multiple widened cavities 16 can be set and sequentially set on the side of the crossbeam body 1 away from the second guide rail 15 to provide a stable structure for the crossbeam body 1.

[0036] Example 3, still as Figures 1 to 3 As shown, this is only one embodiment of the present utility model. Based on any of the above embodiments, in the crossbeam structure of a laser cutting machine of the present utility model, the crossbeam body 1 is provided with a first boss 101 for facilitating the installation of the first guide rail 11, a second boss 102 for facilitating the installation of the rack 12, an installation groove 106 for facilitating the installation of the guide rail pressure block 13, and a third boss 103 for facilitating the installation of the second guide rail 15.

[0037] The first protrusion 101 and the second protrusion 102 are both provided on the upper surface of the main body of the beam 1, and the third protrusion 103 is provided on the side of the main body of the beam 1. Since they are protrusions, it means that the thickness of the hollow main body of the beam 1 at the first protrusion 101, the second protrusion 102 and the third protrusion 103 is thicker than that in other areas, which makes the structure stronger at this point.

[0038] The mounting groove 106 is located on the side of the first boss 101 near the second boss 102, and is used to mount the guide rail pressure block 13.

[0039] Of course, the first boss 101, the second boss 102, the third boss 103 and the mounting groove 106 are all provided with a number of bolt holes at intervals, so that the first guide rail 11, the rack 12, the second guide rail 15 and the guide rail pressure block 13 can be installed here by mounting bolts respectively.

[0040] It should be noted that a first limiting protrusion 104 is provided on the side of the first protrusion 101 away from the second protrusion 102, and a second limiting protrusion 105 is provided on the side of the second protrusion 102 away from the first protrusion 101. This can effectively prevent the first guide rail 11 from bending and deforming away from the rack 12, and also prevent the rack 12 from bending and deforming away from the first guide rail 11.

[0041] Of course, a raised strip is also provided on the side of the mounting groove 106 away from the first boss 101, which is used to limit the guide rail pressure block 13, prevent the guide rail pressure block 13 from shifting towards the second boss 102, and further prevent the first guide rail 11 from bending and deforming towards the rack 12.

[0042] In addition, since the second guide rail 15 is placed vertically, in order to avoid the weight of the carriage 2 and the laser cutting head, as well as the gravity of the second guide rail 15 itself, exerting downward pressure on the second guide rail 15 and causing it to bend downward, a third limiting plate can also be set on the lower side of the third boss 103.

[0043] Finally, the main body 1 of the crossbeam is a one-piece molded aerospace aluminum component. Aerospace aluminum structure is lightweight and high-strength, which can be well used in the structure of the main body 1 of the crossbeam. Moreover, the main body 1 of the crossbeam is a one-piece molded component, which makes its structure more stable.

[0044] Simply put, the main body 1 of the crossbeam, which has support bar 14, widening area 16, first boss 101, second boss 102, third boss 103 and mounting groove 106, is an integrally formed structure (excluding the first guide rail 11, rack 12, second guide rail 15 and guide rail pressure block 13 that are subsequently installed, and even less the slide 2 that is subsequently installed).

[0045] Example 4, still as Figures 1 to 3As shown, this is only one embodiment of the present utility model. Based on any of the above embodiments, in the crossbeam structure of the laser cutting machine of the present utility model, the crossbeam body 1 is provided with a limiting block 17 for sliding and limiting the slide 2. Specifically, the two ends of the crossbeam body 1 are provided with limiting blocks 17, so that when the slide 2 slides along the crossbeam body 1, there are sliding limiting positions on both the left and right sides, so as to prevent the laser cutting head from moving to the side wall plate of the machine tool bed and cutting and damaging the side wall plate.

[0046] Of course, the drive gear 22 is a helical gear. The output shaft of the first drive motor 21 extends downward, while the rack 12 extends horizontally. In order to enable the drive gear 22 and the rack 12 to mesh effectively, the meshing teeth on the drive gear 22 need to be set as an inclined structure, i.e., helical gear transmission.

[0047] Finally, a displacement frame 18 for connecting to a laser cutting machine tool is provided at the end of the main body 1 of the crossbeam. A second drive motor 19 for driving the displacement of the main body 1 of the crossbeam is provided on the displacement frame 18. The displacement frame 18 is set on the side wall plate of the laser cutting machine tool and is perpendicular to the main body 1 of the crossbeam. When the second drive motor 19 is working, it drives the main body 1 of the crossbeam to slide on the side wall plate, and the sliding direction is perpendicular to the sliding direction of the slide 2 on the main body 1 of the crossbeam.

[0048] This utility model discloses a crossbeam structure for a laser cutting machine. The structure is simple, directly adopting a hollow, lightweight crossbeam main body structure, which has a large width and high stability. A first guide rail for facilitating the sliding of the carriage with the laser cutting head and a rack for facilitating the displacement of the carriage can be set on the upper side of the crossbeam main body. A guide rail pressure block is set on the side of the first guide rail near the rack to ensure that the guide rail will not deform and that the displacement stability of the laser cutting head is good.

[0049] This utility model is not limited to the specific embodiments described above, and various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made to the above embodiments based on the technical essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A crossbeam structure for a laser cutting machine, characterized in that: It includes a crossbeam body (1) and a slide (2); the crossbeam body (1) is a hollow part, and a first guide rail (11) is provided on the crossbeam body (1) to facilitate the sliding of the slide (2). A first drive motor (21) is provided on the slide (2), and a drive gear (22) is provided at the output end of the first drive motor (21). A rack (12) is provided on the crossbeam body (1) to connect with the drive gear (22). A guide rail pressure block (13) is provided on the side of the first guide rail (11) near the rack (12).

2. The crossbeam structure of a laser cutting machine according to claim 1, characterized in that: The main body of the crossbeam (1) is provided with a support strip (14).

3. The crossbeam structure of a laser cutting machine according to claim 1, characterized in that: The side of the main body of the crossbeam (1) is provided with a second guide rail (15) to facilitate the sliding of the carriage (2).

4. The crossbeam structure of a laser cutting machine according to claim 3, characterized in that: The main body (1) of the crossbeam is provided with a first boss (101) for facilitating the installation of the first guide rail (11), a second boss (102) for facilitating the installation of the rack (12), an installation groove (106) for facilitating the installation of the guide rail pressure block (13), and a third boss (103) for facilitating the installation of the second guide rail (15).

5. The crossbeam structure of a laser cutting machine according to claim 4, characterized in that: A first limiting protrusion (104) is provided on the side of the first protrusion (101) away from the second protrusion (102), and a second limiting protrusion (105) is provided on the side of the second protrusion (102) away from the first protrusion (101).

6. The crossbeam structure of a laser cutting machine according to claim 3, characterized in that: A widened area (16) is provided on the side of the main body of the crossbeam (1) away from the second guide rail (15).

7. The crossbeam structure of a laser cutting machine according to claim 1, characterized in that: The main body of the crossbeam (1) is provided with a limiting block (17) for sliding and limiting the slide (2).

8. The crossbeam structure of a laser cutting machine according to claim 1, characterized in that: The drive gear (22) is a helical gear.

9. The crossbeam structure of a laser cutting machine according to claim 1, characterized in that: The end of the main body (1) of the crossbeam is provided with a displacement frame (18) for connecting with a laser cutting machine tool, and the displacement frame (18) is provided with a second drive motor (19) for driving the displacement of the main body (1).

10. The crossbeam structure of a laser cutting machine according to claim 1, characterized in that: The main body of the crossbeam (1) is an integrally formed aviation aluminum component.

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