Transverse driving structure of cutting carriage

Abstract

The utility model belongs to the technical field of laser cutting machines, and particularly relates to a cutting carriage transverse driving structure which comprises a cutting carriage used for bearing a cutting head and capable of transversely moving along a cutting bridge. The power assembly is composed of a servo motor and a speed reducer, and the servo motor is connected with the speed reducer; the transmission assembly comprises a helical gear and a helical rack, the helical rack is fixed on the cutting bridge, the output end of the speed reducer is connected with the helical gear, and the helical gear is meshed with the helical rack; and the gap adjusting assembly comprises a gear rack gap adjusting device and an aluminum flange, the aluminum flange is used for installing and fixing the power assembly, and the gear rack gap adjusting device is used for adjusting the gap between the helical gear and the helical rack. According to the gear and rack gap adjusting device, gap adjustment is carried out in the mode of pushing of the fine thread jackscrew or pulling of the fine thread bolt, operation is easy, and accuracy is high.

Description

Technical Field

[0001] This utility model belongs to the field of laser cutting machine technology, specifically relating to a transverse drive structure for a cutting carriage. Background Technology

[0002] In the context of the booming development of modern manufacturing, planar laser cutting machines, with their significant advantages such as high precision, high flexibility, and high efficiency, have been widely used in many fields, including machining, automobile manufacturing, electronic equipment production, and aerospace. From the fine machining of precision parts to the efficient cutting of large structural components, planar laser cutting machines play an irreplaceable role, becoming one of the key pieces of equipment for achieving high-precision and high-quality production in the manufacturing industry.

[0003] With the continued growth in market demand for flatbed laser cutting machines, industry competition is becoming increasingly fierce. To gain a competitive edge, manufacturers are constantly striving to improve product performance. As a core component of flatbed laser cutting machines, the cutting carriage's motion accuracy directly determines the cutting precision of the product, thus affecting product quality and market competitiveness. Traditional lateral drive structures for cutting carriages have many limitations and struggle to meet the market's growing demands for high precision and high performance.

[0004] Most cutting carriages on the market use steel flanges with four fixed holes for their lateral drive structure. This flange structure has certain defects in terms of mechanical performance and cannot fully adapt to the complex stress conditions of the cutting bridge. During equipment operation, the steel flanges are difficult to effectively distribute stress, easily leading to localized stress concentration, affecting the overall structural stability, and thus reducing cutting accuracy. Furthermore, their heavier weight increases the overall load on the equipment, hindering high-speed and high-efficiency operation and limiting the improvement of the equipment's dynamic performance to some extent.

[0005] In adjusting the gear and rack clearance, traditional structures generally use a vertical push-pull adjustment method. This method is difficult to operate and requires a significant amount of time and effort for debugging. Because the adjustment process is not intuitive or precise enough, it is difficult to control the gear and rack clearance within the ideal range, resulting in inconsistent cutting accuracy. In actual production, even minute clearance deviations can cause cutting errors, affecting product quality, increasing production costs, and reducing production efficiency. Utility Model Content

[0006] The purpose of this invention is to provide a transverse drive structure for a cutting carriage to solve the problems existing in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a transverse drive structure for a cutting carriage, comprising:

[0008] A cutting carriage, which carries the cutting head and can move laterally along the cutting bridge;

[0009] The power unit consists of a servo motor and a reducer, wherein the servo motor is connected to the reducer and drives the reducer to operate.

[0010] The transmission assembly includes a helical gear and a helical rack. The helical rack is fixed on the cutting bridge. The output end of the reducer is connected to the helical gear. The helical gear meshes with the helical rack. Driven by the reducer, the helical gear moves laterally along the direction of the helical rack, thereby driving the cutting carriage to move laterally.

[0011] The clearance adjustment assembly includes a gear and rack clearance adjustment device and an aluminum flange. The aluminum flange is used to install and fix the power assembly, and the gear and rack clearance adjustment device is used to adjust the clearance between the helical gear and the helical rack.

[0012] Preferably, the gear and rack clearance adjustment device includes a fixed seat, a shoulder screw, and a fine threaded bolt. The fixed seat is fixed on the cutting slide, and the fine threaded bolt is set on the fixed seat and mates with the corresponding threaded hole on the aluminum flange. By screwing in the fine threaded bolt, the aluminum flange can be pulled to rotate around the shoulder screw, so that the helical gear moves away from the helical rack.

[0013] Preferably, the aluminum flange has 5 strip grooves, and 5 locking bolts are provided accordingly.

[0014] Preferably, the side of the fixed seat is also provided with a fine threaded set screw, which is threadedly connected to the fixed seat and engages with the side of the aluminum flange. By screwing in the fine threaded set screw, the helical gear mounting seat can be pushed closer to the helical rack.

[0015] The beneficial effects of this utility model are as follows: The gear and rack clearance adjustment device in this utility model adjusts the clearance by "pushing" with a fine threaded set screw or "pulling" with a fine threaded bolt, which is simple to operate and highly accurate. Compared with the traditional vertical push-pull adjustment method, this design can more accurately control the clearance between the helical gear and the helical rack. In actual cutting operations, tiny clearance errors may lead to deviations in the cutting trajectory, while this structure can control the clearance within a very small range, effectively avoiding cutting errors, thereby significantly improving the cutting accuracy of the planar laser cutting machine, resulting in products with higher dimensional accuracy and better edge quality. Replacing the traditional steel flange with an aluminum flange effectively reduces the overall weight of the transverse drive structure of the cutting carriage while meeting structural strength requirements. The lighter structure reduces the inertia of the equipment during operation, allowing the cutting carriage to respond more quickly during acceleration, deceleration, and turning, improving the equipment's motion flexibility and dynamic performance, adapting to the needs of higher-speed cutting operations, and thus improving production efficiency. The new flange is designed in conjunction with the cutting bridge mechanical analysis and clearance adjustment mechanism, resulting in a compact overall structure. The compact structure not only saves internal space and allows for a more rational layout of components, reducing interference between them, but also optimizes the center of gravity distribution, improving operational stability. During high-speed operation, a stable center of gravity reduces vibration and sway, further ensuring cutting accuracy and the equipment's dynamic performance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is an enlarged view of the present invention;

[0018] Figure 3 This is a top view of the present invention;

[0019] Figure 4 This is a top view of the aluminum flange in this utility model;

[0020] Figure 5 This is a side view of the power component in this utility model. Detailed Implementation

[0021] It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0022] 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.

[0023] 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.

[0024] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings and preferred embodiments.

[0025] like Figure 1 As shown, a lateral drive structure for a cutting carriage includes:

[0026] The cutting carriage 1 carries the cutting head 2 and allows for lateral movement along the cutting bridge 3. The cutting carriage is made of high-strength, lightweight alloy material to ensure sufficient strength and stability when carrying the cutting head, while reducing overall weight and improving the dynamic performance of the equipment. The size and shape of the cutting carriage are customized according to the specific model and design requirements of the planar laser cutting machine to ensure perfect compatibility with the cutting bridge and other components.

[0027] like Figure 5 As shown, the power component 4 consists of a servo motor 5 and a reducer 6. The servo motor is connected to the reducer, and the servo motor drives the reducer to operate.

[0028] The transmission assembly includes a helical gear 7 and a helical rack 8. The helical rack is fixed on the cutting bridge. The output end of the reducer is connected to the helical gear. The helical gear meshes with the helical rack. Driven by the reducer, the helical gear moves laterally along the direction of the helical rack, thereby driving the cutting carriage to move laterally.

[0029] like Figure 3 and Figure 4 As shown, the clearance adjustment assembly includes a gear and rack clearance adjustment device 9 and an aluminum flange 10. The aluminum flange is used to install and fix the power assembly. The aluminum flange is made of aluminum alloy, and the positions and dimensions of its six fixing points, as well as its thickness of 20 mm, are determined through static load-bearing mechanical analysis and dynamic performance modal analysis. The gear and rack clearance adjustment device is used to adjust the clearance between the helical gear and the helical rack.

[0030] The gear and rack clearance adjustment device includes a fixed base 11, a shoulder screw 12, and a fine threaded bolt 13. The fixed base is fixed on the cutting slide, and the fine threaded bolt is set on the fixed base and mates with the corresponding threaded hole on the aluminum flange. By screwing in the fine threaded bolt, the aluminum flange can be pulled to rotate around the shoulder screw, so that the helical gear moves away from the helical rack.

[0031] Furthermore, the side of the fixing seat is also provided with a fine-threaded set screw 15, which is threadedly connected to the fixing seat and mates with the side of the aluminum flange. By screwing in the fine-threaded set screw, the helical gear mounting seat can be pushed closer to the helical rack. The aluminum flange is provided with 5 strip grooves 16, corresponding to 5 locking bolts 14, for fixing the aluminum flange.

[0032] During equipment operation, the clearance between the helical gear and the helical rack may change due to wear, vibration, and other factors, thus affecting cutting accuracy. In this case, the clearance can be adjusted using a gear and rack clearance adjustment device. The specific operation is as follows:

[0033] Increasing the clearance: When it is necessary to increase the clearance between the helical gear and the helical rack, loosen the fine thread set screw so that it is away from the flange end face, and then rotate the fine thread bolt clockwise so that the fine thread bolt is screwed deeper into the threaded hole on the flange end face, thereby pulling the aluminum flange of the helical gear and moving the helical gear away from the helical rack, thereby increasing the clearance.

[0034] To reduce the clearance: When it is necessary to reduce the clearance between the helical gear and the helical rack, loosen the fine thread bolt to allow for adjustment, and then rotate the fine thread set screw clockwise. The fine thread set screw pushes the aluminum flange end face of the helical gear, bringing the helical gear closer to the helical rack, thereby reducing the clearance.

[0035] During the gap adjustment process, professional measuring tools should be used to measure the gap simultaneously to ensure that it is adjusted to the optimal value. After adjustment, tighten the locking bolts to secure the aluminum flange and prevent the gap from changing again.

[0036] The various components of the cutting carriage's lateral drive structure work together to form an organic whole. The power unit provides power, the transmission unit transmits power and converts it into the lateral movement of the cutting carriage, and the clearance adjustment and connection components ensure the accuracy and stability of the transmission process. Under the command of the control system of the planar laser cutting machine, the cutting carriage moves laterally according to a preset program and path, while the cutting head emits a laser beam to cut the sheet metal, thereby achieving high-precision and high-efficiency cutting operations.

[0037] 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 carriage traverse drive structure, characterized by, The utility model relates to a cutting device for cutting machine, including: Cutting carriage is used to carry cutting head, and can do transverse motion along cutting bridge; Power assembly is by servo motor and speed reducer, servo motor is connected with speed reducer, and servo motor drives speed reducer to run; Transmission assembly includes bevel gear and bevel rack, bevel rack is fixed on cutting bridge, the output of speed reducer is connected with bevel gear, bevel gear is engaged with bevel rack, under the drive of speed reducer, bevel gear does transverse motion along the direction of bevel rack, in turn drives cutting carriage to move laterally; Gap adjusting assembly includes gear and rack gap adjusting device and aluminium flange, aluminium flange is used to install fixed power assembly, gear and rack gap adjusting device is used to adjust the gap between bevel gear and bevel rack.

2. The cutting carriage traverse drive structure of claim 1, wherein, Gear and rack gap adjusting device includes fixed seat, shaft shoulder screw and fine thread bolt, fixed seat is fixed on cutting carriage, fine thread bolt is set on fixed seat, cooperates with corresponding threaded hole on aluminium flange, by the rotation of fine thread bolt, aluminium flange can be pulled around shaft shoulder screw, and bevel gear is away from bevel rack.

3. The cutting carriage traverse drive structure of claim 2, wherein, Five strip grooves are arranged on the aluminium flange, and five locking bolts are arranged correspondingly.

4. The cutting carriage traverse drive structure of claim 2, wherein, The side of the fixed seat is also provided with a fine thread jack, which is threadedly connected with the fixed seat. The fine thread jack cooperates with the side of the aluminum flange. By rotating the fine thread jack, the bevel gear mounting seat can be pushed towards the bevel rack.

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