A large-format laser cutting machine beam running structure

Abstract

The utility model discloses a kind of large-format laser cutting machine beam running structure, including laser cutting machine main body, laser cutting machine main body upper is erected with beam, beam both ends are cooperated with laser cutting machine main body by beam running mechanism between, beam running mechanism includes the beam running base station fixed on laser cutting machine main body, beam running base station upper surface and one side wall are all provided with sliding rod, two groups of sliding rod are all provided with several groups of sliding block, several groups of sliding block are erected with beam running bottom plate, driving assembly is provided on beam running bottom plate, the sliding rod one side of beam running base station upper surface is provided with rack, driving assembly is matched with rack;The utility model large-format laser cutting machine beam running structure, while effectively improving the stability and guiding precision of beam running, can also avoid the problem that large-format laser cutting machine beam running resonance amplitude is large to make gear meshing deviation.

Description

Technical Field

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

[0002] In the industrial processing field, large-format laser cutting machines are widely used in metal processing, sheet metal manufacturing, and other industries because they can meet the cutting needs of large-sized materials. However, as the cutting area increases, the crossbeam, as the load-bearing and running component of the laser cutting head, also increases in size and weight, making it prone to significant resonance during high-speed reciprocating operation.

[0003] Currently, traditional large-format laser cutting machines mostly use a single guiding method for their crossbeam running structure, resulting in poor stability during operation. After long-term, high-frequency operation, the resonance of the crossbeam itself is directly transmitted to the entire running structure. This resonance not only leads to a decrease in the running accuracy of the crossbeam but also directly affects the meshing state of the gears and racks. Due to the periodic displacement fluctuations caused by resonance, unstable meshing clearance and uneven tooth surface contact are prone to occur between the gears and racks, leading to minor jamming during operation, accompanied by abnormal friction noise.

[0004] Furthermore, the existing operating structure lacks an effective meshing adjustment mechanism, which cannot compensate for the meshing deviation of the gear and rack caused by resonance in real time. After long-term operation, it will not only aggravate the wear of the gear and rack and shorten their service life, but also affect the cutting quality due to insufficient operating accuracy. It may even cause equipment failure due to the accumulation of jamming, increasing the risk of production interruption and maintenance costs.

[0005] Therefore, how to optimize the crossbeam running structure of a large-format laser cutting machine, reduce the transmission of crossbeam running resonance to the running structure, and improve the accuracy and stability of gear and rack meshing, thereby solving the problems of running jamming and abnormal noise, has become a technical problem to be solved in this field. Utility Model Content

[0006] The purpose of this invention is to provide a new crossbeam running structure for large-format laser cutting machines, which addresses the problems of poor stability caused by a single guiding mechanism in the traditional crossbeam running structure, easy transmission of crossbeam resonance to the running structure, resulting in unstable gear and rack meshing, abnormal noise during operation, and lack of an effective meshing adjustment mechanism.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a crossbeam running structure for a large-format laser cutting machine, comprising a laser cutting machine body, a crossbeam mounted on the top of the laser cutting machine body, and both ends of the crossbeam cooperating with the laser cutting machine body through a crossbeam running mechanism;

[0008] The crossbeam running mechanism includes a crossbeam running base fixed to the main body of the laser cutting machine. Sliding rods are provided on the upper surface of the crossbeam running base and on one side wall. Several sets of sliders are provided on each of the two sets of sliding rods. A crossbeam running base plate is provided between the sets of sliders. A driving component is provided on the crossbeam running base plate. A rack is provided on one side of the sliding rod located on the upper surface of the crossbeam running base. The driving component cooperates with the rack.

[0009] The drive assembly includes a cylinder mounting platform fixed to the crossbeam running base plate. Two sets of adjusting cylinders are mounted on the cylinder mounting platform. The ends of the telescopic rods of the two sets of adjusting cylinders are fixed to the cylinder mounting platform. An alignment adjustment base plate is provided between the bottoms of the cylinder bodies of the two sets of adjusting cylinders. A bearing is mounted on the alignment adjustment base plate. A rotating shaft is mounted on the inner ring of the bearing. A working gear that meshes with the rack is mounted at the bottom of the rotating shaft. A driven gear is mounted at the top of the rotating shaft. A motor mounting base plate is provided between the tops of the cylinder bodies of the two sets of adjusting cylinders. A drive motor is mounted on the motor mounting base plate. A drive gear is mounted on the rotating shaft of the drive motor. The drive gear meshes with the driven gear.

[0010] Furthermore, the laser cutting machine body located at both ends of the sliding rod is provided with a retaining edge, which is perpendicular to the upper surface of the laser cutting machine body.

[0011] Furthermore, the crossbeam and the crossbeam running base plate are fixedly connected by bolts, and an elastic buffer pad is provided on the contact surface between the crossbeam and the crossbeam running base plate. Several air duct dust removal ports are opened on the inner side wall of the crossbeam.

[0012] Furthermore, the motor mounting base plate is bolted to the top of the cylinder body of the adjusting cylinder, and the motor mounting base plate has an oblong hole, the length direction of which is consistent with the displacement direction of the cylinder body of the adjusting cylinder.

[0013] Furthermore, the lower surface of the motor mounting base plate is arranged at a height higher than the upper surface of the cylinder fixing platform.

[0014] Furthermore, the rack is fixed to the upper surface of the crossbeam running base by countersunk screws, and the tooth surface of the rack is parallel to the axis of the sliding rod.

[0015] Beneficial effects: This utility model has a reasonable design, simple and stable structure, and strong practicality, and has the following beneficial effects:

[0016] 1. Improve the stability and guiding accuracy of the crossbeam: By setting sliding rods on the upper surface and side wall of the crossbeam running base in both directions, and in conjunction with the slider to support the crossbeam running base plate, a two-way guiding structure is formed, which effectively disperses the force on the crossbeam during operation, reduces the shaking caused by single guidance, greatly reduces the transmission of crossbeam resonance to the running structure, and ensures the stability of the crossbeam during long-term high-frequency operation.

[0017] 2. Achieve precise adjustment and compensation of gear and rack meshing: The two sets of adjusting cylinders in the drive assembly can drive the alignment adjustment base plate and the motor mounting base plate to move synchronously, flexibly adjusting the meshing clearance between the working gear and the rack. At the same time, the oblong hole of the motor mounting base plate provides adaptation space for further adjustment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the crossbeam running mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure on the crossbeam running base plate of this utility model;

[0021] Figure 4 This is a schematic diagram of the mating structure at the alignment adjustment base plate of this utility model.

[0022] In the diagram: 1-Laser cutting machine body, 2-Crossbeam, 3-Crossbeam running mechanism;

[0023] 301-Crossbeam running base, 302-Sliding rod, 303-Slider, 304-Crossbeam running base plate, 305-Drive assembly, 306-Rack;

[0024] 3051-Cylinder mounting plate, 3052-Adjusting cylinder, 3053-Alignment adjustment base plate, 3054-Bearing, 3055-Rotating shaft, 3056-Working gear, 3057-Driven gear, 3058-Motor mounting base plate, 3059-Drive motor, 30510-Drive gear. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1:

[0027] Combination Figure 1-4The crossbeam running structure of this large-format laser cutting machine shown takes the main body 1 of the laser cutting machine as the core load-bearing foundation. A crossbeam 2 is erected above the main body 1 of the laser cutting machine. The crossbeam 2 serves as the main moving carrier of the laser cutting head, and its running accuracy directly determines the processing quality of the cut workpiece. In order to achieve stable movement of the crossbeam 2 along the main body 1 of the laser cutting machine, a symmetrical cooperation is formed between the two ends of the crossbeam 2 and the main body 1 of the laser cutting machine through the crossbeam running mechanism 3. The two sets of crossbeam running mechanisms 3 move synchronously to ensure that the crossbeam 2 always remains horizontal during the movement, avoiding running deviation caused by uneven force on one side.

[0028] As the driving and guiding core of the crossbeam 2, the precision of the fit between its internal components is crucial. First, a crossbeam running base 301 is fixed to the corresponding position of the laser cutting machine body 1 by means of bolts. This base is made of high-strength alloy material, and the bottom connection surface with the laser cutting machine body 1 is precision ground to ensure that it has extremely high flatness after installation, providing a stable reference for the assembly of subsequent components. Sliding rods 302 are fixed on the upper surface of the crossbeam running base 301 and on one side wall. The two sets of sliding rods 302 form an "L"-shaped guide structure. To prevent vertical swaying during subsequent operation, several sets of sliders 303 are provided on both sets of sliding rods 302. The sliders 303 are connected to the bottom and side walls of the crossbeam running base plate 304 by bolts, thereby mounting the crossbeam running base plate 304 on the sliding rods 302 to form a bearing platform that can move smoothly along the sliding rods 302. A drive assembly 305 is fixed on the upper surface of the crossbeam running base plate 304. This assembly provides power output for the crossbeam operation. At the same time, a rack 306 is fixed along the length of the sliding rod 302 on one side of the sliding rod 302 located on the upper surface of the crossbeam running base 301. The rack 306 cooperates with the drive assembly 305 to realize the movement drive of the crossbeam 2.

[0029] The drive assembly 305 serves as the power core. On the upper surface of the crossbeam running base plate 304, a cylinder mounting platform 3051 is fixed. This platform has precise mounting holes for positioning and installing adjusting cylinders 3052. Two sets of adjusting cylinders 3052 are symmetrically distributed on both sides of the cylinder mounting platform 3051. The ends of their telescopic rods are fixed to the corresponding interfaces of the cylinder mounting platform 3051 via threaded connections. The cylinder bodies can extend and retract along the axis of the telescopic rods. At the bottom of the cylinder bodies of the two sets of adjusting cylinders 3052, an alignment adjusting base plate 3053 is welded or bolted to a connecting plate. This base plate maintains a rigid connection with the cylinder bodies of the two sets of adjusting cylinders 3052. When the cylinder bodies of the adjusting cylinders 3052 move, the alignment adjusting base plate 3053 moves synchronously. At the center position of the alignment adjusting base plate 3053… A bearing 3054 is fixed in place, and the inner ring of the bearing 3054 forms a transition fit with the rotating shaft 3055 to ensure that the rotating shaft 3055 can rotate flexibly under the support of the bearing 3054, while ensuring the coaxiality of the rotating shaft 3055 and avoiding radial runout during rotation. The bottom of the rotating shaft 3055 extends to the underside of the alignment adjustment base plate 3053, and a working gear 3056 is fixed thereon via a key connection. The tooth profile of the working gear 3056 is perfectly matched with that of the rack 306, and its tooth surface maintains a tight mesh with the tooth surface of the rack 306. At the top of the rotating shaft 3055, a driven gear 3057 is also fixed thereon via a key connection. At the top of the cylinder bodies of the two sets of adjusting cylinders 3052, a motor mounting base plate 3058 is set parallel to the alignment adjustment base plate 3053. This base plate is also connected to the adjusting cylinders 3052. The cylinder is rigidly connected. On the upper surface of the motor mounting base plate 3058, a drive motor 3059 is fixed by a motor seat. The rotating shaft of the drive motor 3059 is fixed with a drive gear 30510 by a coupling or direct connection. The drive gear 30510 meshes with the driven gear 3057 at the top of the rotating shaft 3055. When the drive motor 3059 starts, its rotating shaft drives the drive gear 30510 to rotate. The drive gear 30510 drives the driven gear 3057 to rotate through meshing transmission, which in turn drives the rotating shaft 3055 and the working gear 3056 to rotate synchronously. The working gear 3056 then meshes with the rack 306, converting the rotational power into the linear movement of the crossbeam running base plate 304 along the sliding rod 302, ultimately achieving the precise movement of the crossbeam 2.

[0030] Furthermore, during the entire power transmission process, by adding a corresponding distance sensor, the adjusting cylinder 3052 can make fine adjustments in real time according to the meshing state of the working gear 3056 and the rack 306. When the meshing clearance is detected to be too large, the telescopic rod of the adjusting cylinder 3052 extends and retracts, driving the cylinder body and the alignment adjusting base plate 3053 to move closer to the rack 306, reducing the clearance between the gear and the rack. When the meshing is too tight, the telescopic rod retracts, thereby always ensuring the power transmission efficiency and operational stability of the drive assembly 305.

[0031] In this embodiment, the laser cutting machine body 1 located at both ends of the sliding rod 302 is integrally formed or fixed with bolts with a stop edge. The stop edge is perpendicular to the upper surface of the laser cutting machine body 1, and the height of the stop edge is not lower than the top height of the sliding rod 302. The stop edge prevents the slider 303 from leaving the track of the sliding rod 302 through its own structural strength, ensuring the safe operation of the crossbeam 2.

[0032] In this embodiment, the crossbeam 2 and the crossbeam running base plate 304 are detachably fixedly connected by multiple sets of high-strength bolts. The bolts pass through the pre-set mounting holes at the bottom of the crossbeam 2 and the corresponding threaded holes on the crossbeam running base plate 304 in sequence, ensuring that the two form a stable overall structure after connection. The contact surfaces of the crossbeam 2 and the crossbeam running base plate 304 are tightly fitted, and an elastic buffer pad is also fitted on the contact surface. When the crossbeam 2 resonates during operation, the vibration energy generated by the resonance will be transferred to the elastic buffer pad first. The buffer pad absorbs part of the vibration energy by itself. In addition, several air duct dust removal ports are evenly opened on the inner side wall of the crossbeam 2. The opening direction of the air duct dust removal ports is towards the movement path of the laser cutting component inside the crossbeam 2. During the laser cutting operation, the dust removal system of the equipment will form a negative pressure airflow through the air duct dust removal ports. The airflow can quickly suck the metal dust, smoke and other impurities generated by cutting from the inside of the crossbeam 2 into the dust removal pipe, avoiding dust accumulation on the inner side wall of the crossbeam 2 or seeping into the connection gap between the crossbeam 2 and the crossbeam running base plate 304.

[0033] In this embodiment, the motor mounting base plate 3058 and the top of the cylinder body of the adjusting cylinder 3052 are detachably connected by at least two sets of fastening bolts, ensuring that the motor mounting base plate 3058 can move synchronously and stably with the cylinder body of the adjusting cylinder 3052 after connection. The motor mounting base plate 3058 is provided with a waist-shaped hole that matches the bolts, and the length direction of the waist-shaped hole is completely consistent with the displacement direction of the cylinder body of the adjusting cylinder 3052, so as to provide the motor mounting base plate 3058 with a certain degree of fine installation adaptation adjustment.

[0034] In this embodiment, the lower surface of the motor mounting base plate 3058 is arranged at a height higher than the upper surface of the cylinder fixing platform 3051, which avoids interference between moving parts and stationary parts and further improves the rationality of the overall structure and the stability of operation.

[0035] In this embodiment, the rack 306 is detachably fixed to the upper surface of the crossbeam running base 301 by multiple sets of countersunk screws. After passing through the countersunk hole of the rack 306, the countersunk screw is threadedly connected to the threaded hole of the crossbeam running base 301. After tightening, the head of the countersunk screw is completely embedded in the countersunk hole and does not protrude from the rack 306, thus avoiding subsequent operation interference. At the same time, the tooth surface of the rack 306 is strictly parallel to the axis of the sliding rod 302, making the power transmission smoother.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A crossbeam running structure for a large-format laser cutting machine, comprising a laser cutting machine body (1), wherein a crossbeam (2) is mounted above the laser cutting machine body (1), characterized in that: Both ends of the crossbeam (2) are connected to the main body (1) of the laser cutting machine through the crossbeam running mechanism (3); The beam running mechanism (3) includes a beam running base (301) fixed on the main body (1) of the laser cutting machine. Sliding rods (302) are provided on the upper surface and one side wall of the beam running base (301). Several sets of sliders (303) are provided on both sets of sliding rods (302). A beam running base plate (304) is erected between the several sets of sliders (303). A driving component (305) is provided on the beam running base plate (304). A rack (306) is provided on one side of the sliding rod (302) on the upper surface of the beam running base (301). The driving component (305) cooperates with the rack (306). The drive assembly (305) includes a cylinder mounting platform (3051) fixed to the crossbeam running base plate (304). Two sets of adjusting cylinders (3052) are mounted on the cylinder mounting platform (3051). The ends of the telescopic rods of the two sets of adjusting cylinders (3052) are fixed to the cylinder mounting platform (3051). An alignment adjusting base plate (3053) is provided between the bottoms of the cylinder bodies of the two sets of adjusting cylinders (3052). A bearing (3054) is mounted on the alignment adjusting base plate (3053), and a rotating shaft (305) is mounted on the inner ring of the bearing (3054). 5) The bottom of the rotating shaft (3055) is provided with a working gear (3056) that meshes with the rack (306), and the top of the rotating shaft (3055) is provided with a driven gear (3057). A motor mounting base plate (3058) is provided between the tops of the cylinder bodies of the two sets of adjusting cylinders (3052). A drive motor (3059) is provided on the motor mounting base plate (3058), and a drive gear (30510) is provided on the rotating shaft of the drive motor (3059). The drive gear (30510) meshes with the driven gear (3057).

2. The crossbeam running structure of a large-format laser cutting machine according to claim 1, characterized in that: The laser cutting machine body (1) located at both ends of the sliding rod (302) is provided with a stop edge, which is perpendicular to the upper surface of the laser cutting machine body (1).

3. The crossbeam running structure of a large-format laser cutting machine according to claim 2, characterized in that: The crossbeam (2) is fixedly connected to the crossbeam running base plate (304) by bolts. An elastic buffer pad is provided on the contact surface between the crossbeam (2) and the crossbeam running base plate (304), and several air duct dust removal ports are opened on the inner side wall of the crossbeam (2).

4. The crossbeam running structure of a large-format laser cutting machine according to claim 3, characterized in that: The motor mounting base plate (3058) and the top of the cylinder body of the regulating cylinder (3052) are connected by bolts, and the motor mounting base plate (3058) has an oblong hole, the length direction of which is consistent with the displacement direction of the cylinder body of the regulating cylinder (3052).

5. The crossbeam running structure of a large-format laser cutting machine according to claim 4, characterized in that: The lower surface of the motor mounting base plate (3058) is arranged at a height higher than the upper surface of the cylinder fixing platform (3051).

6. The crossbeam running structure of a large-format laser cutting machine according to claim 5, characterized in that: The rack (306) is fixed to the upper surface of the crossbeam running base (301) by countersunk screws, and the tooth surface of the rack (306) is parallel to the axis of the sliding rod (302).

Images