A CNC double-head saw main beam frame

Abstract

This utility model belongs to the field of aluminum alloy door and window profile processing technology, and in particular to a main beam frame of a CNC double-head saw, including a crossbeam, a central shaft, and mounting blocks. The mounting blocks are located in the middle of the crossbeam, and mounting guide rails are provided on both sides of the crossbeam. Reinforcing ribs are provided at the connection between the crossbeam and the mounting guide rails. A material clamping mechanism is provided on the front end face of the crossbeam, and positioning holes are provided on the inner side of the material clamping mechanism. This utility model effectively enhances the strength and rigidity of the connection by providing reinforcing ribs with an isosceles trapezoidal cross-section at the connection between the crossbeam and the mounting guide rails and using a welding fixing method. This allows the connection to withstand the large impact and vibration generated during sawing, reducing structural deformation and ensuring the overall stability of the main beam frame. Simultaneously, the welding bevel provided at the connection between the mounting blocks and the crossbeam improves the welding quality, enhances the connection strength between the mounting blocks and the crossbeam, and prevents the mounting blocks from loosening or falling off.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy door and window profile processing technology, specifically to a main beam frame for a CNC double-head saw. Background Technology

[0002] A double-head saw is a CNC machine specifically designed for efficient and precise cutting of metal profiles (especially aluminum alloys). Its core feature lies in the symmetrical or asynchronous sawing units at both ends, allowing for simultaneous angle machining of both ends of the workpiece, significantly improving the production efficiency and precision of profiles for doors, windows, and curtain walls. Patent number CN202421098804.5 discloses a main beam frame for a CNC double-head saw, which assists in processing. However, the connections between the main beam frame components are not robust enough, with poor strength and rigidity at the joints, posing a risk of structural deformation or loosening or detachment of mounting blocks. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a main beam frame for a CNC double-head saw, thereby solving the problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a main beam frame for a CNC double-head saw, comprising a crossbeam, a central shaft, and a mounting block. The mounting block is disposed in the middle of the crossbeam, and mounting guide rails are provided on both sides of the crossbeam. Reinforcing ribs are provided at the connection between the crossbeam and the mounting guide rails. A material pressing mechanism is provided on the front end face of the crossbeam, and a positioning hole is provided on the inner side of the material pressing mechanism.

[0005] As a preferred embodiment of this utility model, side bending protection plates are provided on both sides of the mounting guide rail, and a pad is provided on one side of the side bending protection plate.

[0006] As a preferred embodiment of this utility model, an organic head protective shell is provided on the inner side of the reinforcing rib.

[0007] As a preferred technical solution of this utility model, the material pressing mechanism includes a pressing block and an adjusting screw, and the positioning hole is an oblong hole structure.

[0008] As a preferred embodiment of this utility model, the surface of the mounting guide rail is coated with a wear-resistant coating, and the mounting guide rail is fixedly connected to the crossbeam by bolts.

[0009] In a preferred embodiment of this invention, the reinforcing rib has an isosceles trapezoidal cross-section and is welded and fixed to both the crossbeam and the mounting guide rail. In another preferred embodiment, the mounting block has a weld bevel at the connection point with the crossbeam.

[0010] As a preferred technical solution of this utility model, the side bending protection plate has an arc-shaped structure, and the side bending protection plate and the mounting guide rail are detachably connected by countersunk bolts.

[0011] Compared with the prior art, this utility model provides a main beam frame for a CNC double-head saw, which has the following beneficial effects:

[0012] This utility model effectively enhances the strength and rigidity of the connection by setting a reinforcing rib with an isosceles trapezoidal cross section at the connection between the crossbeam and the mounting guide rail, and by using a welding fixing method. This enables the connection to withstand the large impact force and vibration generated during the sawing process, reduces structural deformation, and ensures the overall stability of the main beam frame. At the same time, the welding bevel set at the connection between the mounting block and the crossbeam improves the welding quality, enhances the connection strength between the mounting block and the crossbeam, and avoids the problem of the mounting block loosening or falling off. Attached Figure Description

[0013] Figure 1 This is a first-view structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0015] Figure 3 This is a top view of the structure of this utility model.

[0016] In the diagram: 1. Reinforcing rib; 2. Crossbeam; 3. Central shaft; 4. Mounting block; 5. Side bending protection plate; 6. Head protective shell; 7. Material clamping mechanism; 8. Positioning hole; 9. Mounting guide rail; 10. Pad plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example

[0019] Please see Figure 1-3 The present invention provides the following technical solution: a main beam frame of a CNC double-head saw, including a crossbeam 2, a central shaft 3 and a mounting block 4. The mounting block 4 is located in the middle of the crossbeam 2. Mounting guide rails 9 are provided on both sides of the crossbeam 2. A reinforcing rib 1 is provided at the connection between the crossbeam 2 and the mounting guide rail 9. A material pressing mechanism 7 is provided on the front end face of the crossbeam 2. A positioning hole 8 is opened on the inner side of the material pressing mechanism 7.

[0020] Specifically, side bending protection plates 5 are provided on both sides of the mounting rail 9, and a pad 10 is provided on one side of the side bending protection plate 5.

[0021] Specifically, an organic head protective shell 6 is installed on the inner side of the reinforcing rib 1.

[0022] Specifically, the material clamping mechanism 7 includes a clamping block and an adjusting screw, and the positioning hole 8 is an oblong hole structure.

[0023] Specifically, the surface of the mounting guide 9 is coated with a wear-resistant coating, and the mounting guide 9 is fixedly connected to the crossbeam 2 by bolts.

[0024] Specifically, the reinforcing rib 1 has an isosceles trapezoidal cross section, and is welded and fixed to the crossbeam 2 and the mounting guide rail 9 respectively. Specifically, the mounting block 4 has a welding bevel at the connection with the crossbeam 2. Specifically, the side bending protection plate 5 has an arc-shaped structure, and is detachably connected to the mounting guide rail 9 using countersunk bolts.

[0025] In this implementation scheme, the crossbeam 2, as the basic load-bearing component of the main beam frame, is made of high-strength alloy steel, which has good rigidity and strength. Its cross-sectional shape is designed as a rectangle, which can reduce the structural weight while ensuring strength. The length of the crossbeam is determined according to the model of the CNC double-head saw and the processing requirements, generally between 2000-3000mm, the width is 200-300mm, and the height is 150-250mm. The surface of the crossbeam is sandblasted to remove rust, and then coated with anti-rust paint to improve its corrosion resistance.

[0026] Mounting block 4 is used to install core components such as the drive motor of the CNC double-head saw. Made of cast steel, it boasts high strength and wear resistance. The block is rectangular in shape, with a length of 300-400mm, a width of 200-250mm, and a height of 150-200mm. A 45° bevel is provided at the connection between the mounting block and the crossbeam 2. The mounting block is then fixed to the crossbeam by welding. Carbon dioxide gas shielded welding is used during welding, with a welding current of 200-250A and a welding voltage of 25-30V to ensure welding quality. After welding, the weld is ground to remove slag and burrs, ensuring a smooth and even joint.

[0027] Mounting guides 9 are installed on both sides of the crossbeam 2. They are linear guides, and their model is determined based on the weight and operating speed of the sawing mechanism. The length of the mounting guides matches the length of the crossbeam, typically 2000-3000mm. The surface of the mounting guides is coated with a wear-resistant tungsten carbide coating with a thickness of 0.05-0.1mm. The tungsten carbide coating has extremely high hardness and wear resistance, effectively improving the service life of the mounting guides and reducing the impact of wear on guiding accuracy. The mounting guides are fixed to the crossbeam 2 with bolts. High-strength bolts, M10-M12 in size, are used, with a bolt spacing of 100-150mm. Locating pins, with a diameter of 8-10mm, are provided on the connection surface between the mounting guides and the crossbeam to ensure the installation position accuracy of the mounting guides. Reinforcing rib 1 is installed at the connection between the crossbeam 2 and the mounting rail 9. Its cross-section is an isosceles trapezoid, with an upper base length of 50-80mm, a lower base length of 100-150mm, and a height of 80-120mm. The reinforcing rib is made of high-strength steel plate with a thickness of 8-12mm and is welded to both the crossbeam 2 and the mounting rail 9 using fillet welding with a weld leg height of 6-8mm. The isosceles trapezoidal cross-section ensures a more uniform stress distribution under load, effectively transferring the force between the crossbeam and the mounting rail, and enhancing the strength and rigidity of the connection. The number of reinforcing ribs is determined by the length of the crossbeam, generally one reinforcing rib every 500-800mm.

[0028] The material clamping mechanism 7 is located on the front end face of the crossbeam 2 and is used for positioning and clamping the profile. The material clamping mechanism includes a clamping block and an adjusting screw. The clamping block is made of wear-resistant cast iron, is L-shaped, 150-200mm long, 80-100mm wide, and 20-30mm thick. The adjusting screw is made of high-strength alloy steel, with a diameter of 16-20mm and a length of 200-300mm. One end of the adjusting screw is threaded to the clamping block, and the other end has a handle. By rotating the handle, the position of the clamping block can be adjusted to clamp the profile. A positioning hole 8 is provided on the inner side of the material clamping mechanism. The positioning hole is an oblong structure, 50-80mm long and 15-20mm wide. The positioning holes are evenly distributed along the length of the material clamping mechanism, with a spacing of 50-100mm. The waist-shaped hole structure allows the profile to be adjusted within a certain range, improving the flexibility and accuracy of positioning.

[0029] Side bending guard plate 5 is installed on both sides of mounting guide rail 9. It is made of bent steel plate with an arc shape and an arc radius of 100-150mm. The length of the side bending guard plate matches the length of the mounting guide rail, the width is 100-150mm, and the thickness is 2-3mm. The arc shape of the side bending guard plate can better block the chips and dust generated during sawing, protecting the mounting guide rail and sawing mechanism. The side bending guard plate and the mounting guide rail 9 are detachably connected by countersunk bolts. The countersunk bolt specifications are M6-M8, and the bolt spacing is 150-200mm. The use of countersunk bolts can avoid the bolt heads protruding, preventing interference with the movement of the sawing mechanism. A pad 10 is installed on one side of the side bending guard plate 5 and is made of rubber. The shape of the pad matches the arc of the side bending guard plate, and its length and width are the same as the side bending guard plate, with a thickness of 5-10mm. The backing plate is glued to the side bending guard plate 5 using high-strength structural adhesive, which has good bonding strength and aging resistance. This adhesive acts as a buffer, reducing the impact of vibrations generated during sawing on the side bending guard plate, and also preventing debris and dust from entering through the gap between the side bending guard plate and the mounting rail. The saw head protective shell 6 is located inside the reinforcing rib 1 and is made of gray injection-molded plastic. The shape of the saw head protective shell is determined according to the structure of the saw head, enclosing the key components and providing dustproof, waterproof, and safety protection. The saw head protective shell is connected to the reinforcing rib 1 via snap-fit, facilitating installation and disassembly, and enabling convenient maintenance and repair of the saw head.

[0030] The working principle and usage process of this utility model are as follows: First, the crossbeam 2 is pre-treated, including sandblasting to remove rust and spraying with anti-rust paint. Then, the central shaft 3 is inserted through the middle of the crossbeam 2, and the two ends of the central shaft are connected to the mounting guide rail 9 via bearings. The bearing clearance is adjusted to ensure flexible rotation of the central shaft. Next, the mounting guide rail 9 is placed on both sides of the crossbeam 2, and the installation position is determined by locating pins. Then, high-strength bolts are used to fix the mounting guide rail to the crossbeam. When tightening the bolts, the principle of symmetry and evenness should be followed to avoid stress concentration.

[0031] Reinforcing rib 1 is welded at the connection between the crossbeam 2 and the mounting guide rail 9. Before welding, the oil and rust on the connection surface must be cleaned. During the welding process, the quality of the weld must be ensured. After welding, the weld is ground. Then, the mounting block 4 is placed in the middle of the crossbeam 2 and welded according to the welding bevel. After welding, the weld is cleaned and subjected to flaw detection to ensure that the welding quality is qualified.

[0032] Next, install the material clamping mechanism 7 on the front end face of the crossbeam 2. After assembling the clamping block and adjusting screw, fix the material clamping mechanism to the crossbeam with bolts, and adjust the adjusting screw to allow the clamping block to move flexibly. Then, install the side bending protection plates 5 on both sides of the mounting guide rail 9, and fix the side bending protection plates to the mounting guide rail with countersunk bolts to ensure a firm connection. Next, attach the pad 10 to one side of the side bending protection plate 5. Before attaching, clean the surface of the side bending protection plate to ensure a firm adhesion. Finally, install the machine head protective shell 6 on the inner side of the reinforcing rib 1, and fix the machine head protective shell with clips to complete the assembly of the entire main beam frame.

[0033] During the operation of the CNC double-head saw, the main beam plays a crucial role in load-bearing and guiding. The profile is positioned and clamped by the material clamping mechanism 7. The positioning holes 8 of the waist-shaped hole structure can be flexibly adjusted according to the size of the profile, ensuring that the profile does not shift during cutting. The sawing mechanism is mounted on the mounting guide rail 9, and the sawing direction is adjusted by rotating the central axis 3. The wear-resistant coating on the surface of the mounting guide rail ensures smooth movement and guiding accuracy of the sawing mechanism, reducing wear.

[0034] The reinforcing rib 1 at the connection between the crossbeam 2 and the mounting rail 9 enhances the structural stability, enabling it to withstand the significant impact and vibration generated during sawing and preventing structural deformation. The side bending protection plate 5 and the pad 10 effectively block debris and dust generated during sawing, protecting the mounting rail and sawing mechanism and extending the equipment's service life. The head protection shell 6 provides dustproof, waterproof, and safety protection for the key components of the sawing head.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A main beam frame of a numerical control double-end saw, comprising a cross beam (2), a middle shaft (3) and a mounting block (4), characterized in that: The mounting block (4) is located in the middle of the crossbeam (2). Mounting guide rails (9) are provided on both sides of the crossbeam (2). A reinforcing rib (1) is provided at the connection between the crossbeam (2) and the mounting guide rails (9). A material pressing mechanism (7) is provided on the front end face of the crossbeam (2). A positioning hole (8) is provided on the inner side of the material pressing mechanism (7).

2. The main beam frame of a numerically controlled double-end saw according to claim 1, characterized in that: Side bending protection plates (5) are provided on both sides of the mounting guide rail (9), and a pad (10) is provided on one side of the side bending protection plate (5).

3. The main beam frame of a numerically controlled double-end saw according to claim 2, characterized in that: An organic head protective shell (6) is provided on the inner side of the reinforcing rib (1).

4. The main beam frame of a numerically controlled double-end saw according to claim 1, characterized in that: The material pressing mechanism (7) includes a pressing block and an adjusting screw, and the positioning hole (8) is a waist-shaped hole structure.

5. The main beam frame of a numerically controlled double-end saw according to claim 1, characterized in that: The mounting guide (9) is coated with a wear-resistant coating, and the mounting guide (9) is fixedly connected to the crossbeam (2) by bolts.

6. The main beam frame of a numerically controlled double-end saw according to claim 1, characterized in that: The cross section of the reinforcing rib (1) is an isosceles trapezoid, and the reinforcing rib (1) is welded and fixed to the crossbeam (2) and the mounting guide rail (9) respectively.

7. The main beam frame of a numerically controlled double-end saw according to claim 1, characterized in that: The connection between the mounting block (4) and the crossbeam (2) is provided with a welding bevel.

8. The main beam frame of a numerically controlled double-end saw according to claim 2, characterized in that: The side bending protection plate (5) has an arc-shaped structure, and the side bending protection plate (5) and the mounting guide rail (9) are detachably connected by countersunk bolts.

Images