Cutting bridge end casting

Abstract

The utility model belongs to the technical field of laser cutting machines, and particularly relates to a cutting bridge end part casting which is applied to a plane laser cutting machine, is used for connecting a cutting bridge sectional material and a machine tool body guide rail, and comprises an end part casting body, a driving system mounting surface, a guide rail mounting surface, a lubricating system mounting surface and a cutting bridge profile mounting surface are respectively arranged on the end part casting body, and the driving system mounting surface is positioned at the upper part of the end part casting body and is used for fixing a driving system; the guide rail mounting surface longitudinally extends along the bottom of the casting and is used for connecting a lathe bed guide rail; the lubricating system mounting surface is arranged on the side part, close to the driving system mounting surface, of the end part casting body and is used for mounting a lubricating system; and the cutting bridge profile mounting surface is connected with a cutting bridge profile through a bolt and a positioning pin. According to the device, the structural dynamic deformation in the cutting process is greatly reduced, the cutting track deviation is reduced, and the high-precision cutting requirement is met.

Description

Technical Field

[0001] This utility model belongs to the field of laser cutting machine technology, specifically relating to a cutting bridge end casting. Background Technology

[0002] In today's booming manufacturing era, planar laser cutting machines, with their high precision and high efficiency cutting performance, have been widely used in many fields such as machining, automobile manufacturing, and electronic equipment production. As market demands for the quality and production efficiency of laser-cut products continue to rise, the competitive pressure faced by planar laser machine tools is also increasing daily.

[0003] As a core component of a planar laser cutting machine, the cutting bridge's motion precision directly determines the product's cutting accuracy and plays a crucial role in the overall performance of the equipment. The casting at the end of the cutting bridge, serving as the connection between the cutting bridge and the machine bed, not only supports the drive system but also connects the bed guide rails to the cutting bridge profile. Its dynamic deformation and weight have a significant impact on cutting quality.

[0004] Currently, there are two main structural forms for cutting bridges: integrated casting structures and profile-with-connecting-cast structures. Cutting bridges using integrated casting structures require multiple mold openings to meet varying length requirements. This significantly increases production costs and development cycles, and also reduces flexibility during product updates, making it difficult to respond quickly to market changes. While cutting bridges using profile-with-connecting-cast structures alleviate the mold opening cost issue to some extent, the structural design of the casting and the connection method with the profile have many flaws. Inappropriate structures and connection methods affect the stability of the cutting process, leading to fluctuations in cutting quality. They also cause numerous inconveniences in equipment debugging, prolonging debugging time and reducing production efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a cutting bridge end casting to solve the problems existing in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cutting bridge end casting, applied to a planar laser cutting machine, connecting the cutting bridge profile to the machine tool bed guide rail, comprising an end casting body, wherein the end casting body is respectively provided with a drive system mounting surface, a guide rail mounting surface, a lubrication system mounting surface, and a cutting bridge profile mounting surface; the drive system mounting surface is located on the upper part of the end casting body and is used to fix the drive system; the guide rail mounting surface extends longitudinally along the bottom of the casting and is used to connect the bed guide rail; the lubrication system mounting surface is located on the side of the end casting body near the drive system mounting surface and is used to install the lubrication system; the cutting bridge profile mounting surface is connected to the cutting bridge profile by bolts and locating pins.

[0007] Preferably, the end casting body is mainly composed of connecting stiffeners, peripheral stiffeners and vertical stiffeners, with the peripheral stiffeners surrounding the outer ring of the vertical stiffeners and connecting stiffeners, and the connecting stiffeners located on the upper part of the vertical stiffeners.

[0008] Preferably, the side of the end casting body is provided with a plurality of weight-reducing holes.

[0009] Preferably, the end casting body has a threading hole in the middle.

[0010] Preferably, the outer dimensions of the cutting bridge end casting are 890x285x200mm, the thickness of its outer stiffening plate is 10mm, the thickness of the stiffening plate connected to the cutting bridge profile is 35mm, the thickness of the vertical stiffening plate is 20mm, the thickness of the guide rail mounting surface is 21mm, and the thickness of the motor mounting plane is 23mm.

[0011] The beneficial effects of this utility model are as follows: Through static load-bearing mechanical analysis and dynamic performance modal analysis of the cutting bridge, the end casting of this cutting bridge is scientifically designed with rib plate layout and thickness, and dimensions of each mounting surface. Combined with precise control of gear and rack clearance via assembly adjustment holes, this greatly reduces structural dynamic deformation during the cutting process, lowers cutting trajectory deviation, and ensures high-precision cutting requirements. The casting adopts a profile-with-connecting-casting structure, avoiding the high cost and long cycle of multiple mold openings for integrated castings. This allows companies to quickly respond to market changes and launch new products. Simultaneously, its reasonable structural design and reliable connection facilitate installation and debugging. Furthermore, the aluminum material combined with weight-reducing holes and threaded inlay steel wire sleeves reduces weight and energy consumption while extending the casting's service life, effectively reducing maintenance costs and comprehensively improving production efficiency and economic benefits. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a perspective view of the present invention from another direction;

[0014] Figure 3 This is a schematic diagram illustrating the application of this utility model;

[0015] Figure 4 This is an enlarged view of the application of this utility model. Detailed Implementation

[0016] It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixed connection," and "fixed connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings and preferred embodiments.

[0020] like Figure 1-4 As shown, a cutting bridge end casting is used in a planar laser cutting machine to connect the cutting bridge profile 1 to the machine tool bed guide rail 2. It includes an end casting body 3, with external dimensions of 890x285x200mm. It mainly consists of connecting stiffeners 31, peripheral stiffeners 32, and vertical stiffeners 33. The connecting stiffeners are 35mm thick and located on the mating side between the casting and the cutting bridge profile 1. The upper surface of the connecting stiffeners has threaded holes 4 and locating pins 5. M10 bolts and locating pins are used to fix the cutting bridge profile to the end casting body, ensuring connection rigidity. The peripheral stiffeners are 10mm thick and distributed along the outer contour of the casting, enhancing overall torsional resistance. The vertical stiffeners are 20mm thick and vertically distributed between the drive system mounting surface and the guide rail mounting surface, forming a support frame and reducing dynamic deformation.

[0021] The end casting body 3 is provided with a drive system mounting surface 34, a guide rail mounting surface 35, a lubrication system mounting surface 36, and a cutting bridge profile mounting surface 37. The drive system mounting surface is 23mm thick and is horizontally arranged on the top of the casting, used to fix the drive motor 6 and the gear and rack mechanism. The guide rail mounting surface is 21mm thick and extends longitudinally along the bottom of the casting, used to connect the bed guide rail 2. The lubrication system mounting surface is located on the side of the end casting body near the drive system mounting surface, integrating the lubrication system 7 and fixing holes, facilitating the installation and maintenance of the lubrication system. The cutting bridge profile mounting surface is connected to the cutting bridge profile by bolts and positioning pins, achieving precise alignment between the casting and the profile, with tolerance controlled within ±0.05mm.

[0022] Furthermore, the side of the end casting body is provided with several weight-reducing holes 8. These holes are distributed at the intersection of the stiffeners and have a diameter of 20mm, reducing local weight while maintaining structural strength.

[0023] Furthermore, a wire-passing hole 9 is provided in the middle of the end casting body. It is located between the side stiffeners and also serves as a wire-passing channel. The hole diameter is 25mm, and the edges are chamfered to avoid stress concentration.

[0024] This solution significantly reduces weight while maintaining structural strength through integrated aluminum castings, multi-directional stiffener layout, and weight-reducing hole design, enabling the cutting bridge to achieve an acceleration of over 2g and a cutting accuracy error of <±0.05mm. Furthermore, the assembly adjustment holes and modular mounting surface design simplify the debugging and maintenance process, making it suitable for various sizes of flatbed laser cutting machines.

[0025] It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A cutting bridge end casting applied to a planar laser cutting machine, connecting a cutting bridge profile and a machine tool bed guide rail, characterized in that, The end casting body is provided with a driving system mounting surface, a guide rail mounting surface, a lubricating system mounting surface and a cutting bridge profile mounting surface respectively, the driving system mounting surface is located at the upper part of the end casting body and used for fixing the driving system; The guide rail mounting surface extends longitudinally along the bottom of the casting and is used for connecting the bed body guide rail; the lubricating system mounting surface is located at the side of the end casting body close to the driving system mounting surface and used for mounting the lubricating system; and the cutting bridge profile mounting surface is connected with the cutting bridge profile through bolts and positioning pins.

2. The cut bridge end casting of claim 1, wherein, The end casting body is mainly composed of a connecting rib plate, a peripheral rib plate and a vertical rib, the peripheral rib plate surrounds the outer circle of the vertical rib and the connecting rib plate, and the connecting rib plate is located at the upper part of the vertical rib.

3. The cut bridge end casting of claim 1, wherein, The side of the end casting body is provided with a plurality of lightening holes.

4. The cut bridge end casting of claim 1, wherein, The middle part of the end casting body is provided with a threading hole.

5. The cut bridge end casting of claim 1, wherein, The peripheral size of the cutting bridge end casting is 890x285x200mm, the thickness of the peripheral rib plate is 10mm, the thickness of the rib plate connected with the cutting bridge profile is 35mm, the thickness of the vertical rib is 20mm, the thickness of the guide rail mounting surface is 21mm, and the thickness of the motor mounting plane is 23mm.

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