A laser cutting fixture for saw blades

Abstract

A saw blade laser cutting fixing clamp, comprising a center base, a support arm and a movable magnetic block, the side wall of the center base is vertically connected with the support arm which is annularly symmetrical around the axis of the center base, the movable magnetic block is arranged on the support arm, and the center base and the support arm are provided with a slag removal device; a detachable centering shaft is arranged at the upper end of the center base, a cross-shaped fixing clamp is arranged at the lower end of the center base, the movable magnetic block is limitedly slid along the moving groove of the support arm through the lower end threaded column, the sliding grooves on the two sides of the moving groove are matched with the lower end clamping plate of the magnetic block to prevent deviation, the slag removal device is connected with the high-pressure gas supply system through the air inlet and the spiral air inlet pipe, and the hollow structure and the blowing hole are combined to realize real-time slag cleaning. The clamp solves the problem of slag accumulation through the open structure and the slag removal design, the movable magnetic block and the detachable centering shaft are matched with saw blades of different sizes, the cross-shaped fixing clamp and the limiting structure improve the stability, frequent disassembly and maintenance are not needed, the saw blade cutting precision is effectively guaranteed, the operation and maintenance cost is reduced, and the clamp is suitable for various saw blade substrate laser cutting processes.

Description

Technical Field

[0001] This utility model relates to the technical field of saw blade laser cutting auxiliary fixing equipment, and in particular to a saw blade laser cutting fixing clamp. Background Technology

[0002] As a core tool in the cutting and processing field, the saw blade's substrate machining accuracy directly determines its cutting efficiency, service life, and cutting quality. Laser cutting technology, due to its advantages such as high cutting precision, smooth kerf, and small heat-affected zone, has been widely applied in the manufacturing of saw blade substrates. During the laser cutting process of the saw blade substrate, the fixing fixture is a key component ensuring the accuracy of the saw blade substrate positioning and the stability of the cutting process; its performance directly affects the cutting precision and processing efficiency of the saw blade substrate.

[0003] Currently, the fixtures used in existing laser cutting processes for saw blade substrates are mostly integral disc-shaped structures. Their working principle involves using magnets on the fixture surface to attract and fix the saw blade substrate to be cut. However, these traditional disc-shaped fixtures have many technical defects in practical applications, seriously affecting the saw blade processing quality and production efficiency: 1. The welding slag produced by laser cutting cannot fall off and accumulates on the surface of the fixture and the magnet area, which makes the magnet unable to move flexibly and the base of the saw blade to be cut cannot be placed flat, causing positioning deviation and reducing cutting accuracy; 2. The solidified weld slag adheres tightly to the fixture, requiring disassembly and cleaning. This operation is cumbersome and time-consuming, affecting the continuity of processing. Furthermore, frequent disassembly can cause wear and tear on parts, increasing maintenance costs. 3. The magnet's fixed position or complex adjustment structure makes it difficult to quickly adapt to saw blades of different sizes; moreover, it lacks a dedicated positioning and locking mechanism, making it prone to displacement under cutting vibration, which affects processing stability. 4. Relying solely on natural falling or manual cleaning is insufficient to address welding slag in real time during cutting, leading to recurring problems. Summary of the Invention

[0004] Given the technical problems existing in the background technology, the current saw blade laser cutting fixtures suffer from issues such as slag accumulation, difficulty in cleaning, poor adaptability, and insufficient stability. These problems have become key bottlenecks restricting the processing accuracy, production efficiency, and maintenance cost reduction of the saw blade substrate in laser cutting. Therefore, developing a saw blade laser cutting fixture with a simple structure, easy slag cleaning, strong adaptability, and high stability has significant practical application value and market demand.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A saw blade laser cutting fixture includes a central base, a support arm, and a movable magnetic block. The support arm is vertically connected to the side wall of the central base. The support arm is symmetrically arranged in a ring around the axis of the central base. The movable magnetic block is provided on the support arm. A slag removal device is provided on the support arm and the central base. The saw blade to be cut is placed on the movable magnetic block and magnetically connected to it.

[0006] In a preferred embodiment, a centering shaft is provided on the upper end face of the central base, and a fixing clip is provided on the lower end face of the central base. Both the centering shaft and the fixing clip are detachably connected to the central base.

[0007] In a preferred embodiment, the lower end face of the movable magnetic block is vertically provided with a threaded post, and a moving groove is provided on the support arm. The movable magnetic block is limited and slid along the moving groove by means of the threaded post.

[0008] In the preferred embodiment, the lower end of the threaded column is threadedly connected to the locking block, and a flexible washer is provided between the contact surfaces of the locking block and the support arm.

[0009] In a preferred embodiment, sliding grooves are provided on both sides of the movable groove, and a locking plate is provided on the lower end face of the movable magnetic block. The locking plate is engaged in the sliding groove and slides along its limiting position.

[0010] In the preferred embodiment, the central base and the support arm are both hollow structures and are interconnected, and the inner wall of the slide is provided with air blowing holes.

[0011] In a preferred embodiment, the slag removal device includes an air inlet and a spiral air inlet pipe. The air inlet is located on the central base and is connected to an external high-pressure air supply system through the spiral air inlet pipe.

[0012] A laser cutting fixture for saw blades can achieve the following beneficial effects in practical use: 1. It adopts an open structure with a central base and a ring support arm, allowing welding slag to fall off naturally; combined with a hollow structure, air blowing holes and slag removal device, it can remove residual welding slag in real time, avoid magnet jamming and uneven saw blade placement, and ensure accurate saw blade positioning. 2. The movable magnetic block can be adjusted and quickly fixed along the moving groove, and the detachable centering shaft can match the center hole of different saw blades. It can adapt to multiple sizes of saw blades without replacing the entire set of clamps, reducing equipment investment. 3. The bottom fixing clamp works with the cutting table to prevent displacement, and the flexible washer prevents the magnetic block from loosening and the support arm from wearing out. Double protection resists cutting vibration and reduces processing errors. 4. Welding slag can be cleaned without frequent disassembly, resulting in less wear and longer lifespan of parts; multiple size compatibility reduces fixture change time, comprehensively reducing maintenance costs and improving production efficiency. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a bottom view showing the overall structure and installation effect of this utility model. Figure 3 This is a disassembled diagram of the movable magnetic block structure of this utility model; Figure 4 This is an enlarged schematic diagram of the movable magnetic block structure of this utility model; Figure 5 This is an enlarged schematic diagram of the slag removal device of this utility model.

[0014] In the diagram: 1. Central base; 2. Support arm; 3. Centering shaft; 4. Moving groove; 5. Movable magnet; 6. Fixing clamp; 7. Threaded column; 8. Locking block; 9. Flexible washer; 10. Clamping plate; 11. Slide groove; 12. Air blowing hole; 13. Air inlet; 14. Spiral air inlet pipe; 15. Saw blade to be cut. Detailed Implementation

[0015] like Figure 1 and Figure 2 As shown, a saw blade laser cutting fixture includes a central base 1, a support arm 2, and a movable magnetic block 5. The central base 1 is made of high-strength aluminum alloy, which combines lightweight and structural rigidity to avoid deformation due to cutting vibration. The support arm 2 is vertically connected to its side wall. The support arms 2 are arranged symmetrically in a ring around the axis of the central base 1, preferably 3-4, to ensure uniform support for the saw blade. The movable magnetic block 5 is provided on the support arm 2. Neodymium iron boron strong magnets are selected, and the attraction force meets the fixing requirements of the saw blade substrate. The support arm 2 and the central base 1 are equipped with a slag removal device. The saw blade 15 to be cut is placed on the movable magnetic block 5 and magnetically connected to it. The central hole of the saw blade substrate corresponds to the subsequent centering shaft 3 to achieve initial positioning.

[0016] Preferred solutions include Figure 1 and Figure 2 As shown, a centering shaft 3 is provided on the upper end face of the center base 1. The centering shaft 3 is a stepped cylindrical structure and can be detachably connected to the threaded hole on the upper end face of the center base 1 through a fine thread. The fine thread can improve the connection stability and prevent vibration from loosening. A fixing clamp 6 is provided on the lower end face of the center base 1. The fixing clamp 6 is a cross-shaped structure with waist-shaped holes at all four ends, which can be adapted to different bolt hole positions of the cutting table. It can be detachably connected to the center base 1 through a flange and bolts. In use, the bolts are passed through the waist-shaped holes and locked with the threaded holes of the laser cutting table to achieve overall fixation of the clamp.

[0017] Preferred solutions include Figures 3 to 4As shown, the lower end face of the movable magnetic block 5 is vertically provided with a threaded post 7, which is welded and fixed to the magnetic block to ensure that the welding strength meets the usage requirements; the support arm 2 is provided with a moving groove 4, which is a through-type elongated hole with a width that matches the outer diameter of the threaded post, ensuring smooth sliding without jamming. The length of the moving groove is designed according to the maximum diameter of the compatible saw blade, which can cover common saw blade specifications; the movable magnetic block 5 slides along the moving groove 4 through the threaded post 7, and the lower end of the threaded post extends out of the moving groove to provide installation space for the subsequent locking block 8.

[0018] Preferred solutions include Figure 3 As shown, the lower end of the threaded column 7 is threadedly connected to the locking block 8. The locking block 8 is a hexagonal nut structure with an internal thread that matches the threaded column, and its surface is galvanized for rust prevention. A flexible washer 9 is placed between the contact surface of the locking block 8 and the support arm 2. The flexible washer can enhance the locking friction to prevent loosening and also prevent the locking block from wearing the surface of the support arm. When adjusting the position of the magnetic block, loosening the locking block will push the magnetic block to slide. After it is in place, tightening the locking block will fix it. The operation is convenient and efficient.

[0019] Preferred solutions include Figure 4 As shown, sliding grooves 11 are provided on both sides of the movable groove 4. A retaining plate 10 is provided on the lower end face of the movable magnetic block 5. The retaining plate 10 is an L-shaped metal plate that is welded and fixed to the magnetic block. The retaining plate 10 is engaged in the sliding groove 11 and slides along its limit. Through the cooperation between the retaining plate and the sliding groove, the magnetic block can be prevented from shifting left or right or flipping when sliding, ensuring that the upper surface of the magnetic block is always flush with the upper surface of the support arm, and ensuring that the saw blade is placed flat.

[0020] Preferred solutions include Figure 4 As shown, the central base 1 and the support arm 2 are both hollow structures and are interconnected to form a complete airflow channel; the inner wall of the slide 11 is provided with air blowing holes 12, which are evenly distributed along the length of the slide. High-pressure gas can be directly applied to the moving groove and the welding slag in the slide through the air blowing holes to avoid the accumulation of welding slag and blockage of the sliding gap.

[0021] Preferred solutions include Figure 5 As shown, the slag removal device includes an air inlet 13 and a spiral air inlet pipe 14. The air inlet 13 is located on the side wall of the central base 1 and has a built-in one-way valve to prevent gas backflow or welding slag from entering. It is connected to the external high-pressure air supply system through the spiral air inlet pipe 14. The spiral air inlet pipe is made of stainless steel and its spiral structure can reduce air pipe entanglement and is compatible with the layout around the cutting table. The slag removal device can be linked with the laser cutting equipment. It supplies air synchronously when cutting starts and delays shutting off after cutting to ensure thorough cleaning of welding slag.

Claims

1. A saw blade laser cutting fixing fixture, comprising a central base (1), a support arm (2), and a movable magnetic block (5), characterized in that: The side wall of the central base (1) is vertically connected to a support arm (2). The support arm (2) is arranged symmetrically in a ring around the axis of the central base (1). A movable magnetic block (5) is provided on the support arm (2). A slag removal device is provided on the support arm (2) and the central base (1). The saw blade (15) to be cut is placed on the movable magnetic block (5) and magnetically connected to it.

2. The saw blade laser cutting fixing fixture according to claim 1, characterized in that: A centering shaft (3) is provided on the upper end face of the center base (1), and a fixing clip (6) is provided on the lower end face of the center base (1). The centering shaft (3) and the fixing clip (6) are detachably connected to the center base (1).

3. The saw blade laser cutting fixing fixture according to claim 1, characterized in that: The lower end face of the movable magnetic block (5) is vertically provided with a threaded column (7), and a moving groove (4) is provided on the support arm (2). The movable magnetic block (5) slides along the moving groove (4) through the threaded column (7).

4. The saw blade laser cutting fixing fixture according to claim 3, characterized in that: The lower end of the threaded column (7) is threadedly connected to the locking block (8), and a flexible washer (9) is provided between the contact surface of the locking block (8) and the support arm (2).

5. The saw blade laser cutting fixing fixture according to claim 3, characterized in that: The movable groove (4) has parallel sliding grooves (11) on both sides, and the lower end of the movable magnetic block (5) is provided with a locking plate (10). The locking plate (10) is engaged in the sliding groove (11) and slides along its limiting position.

6. The saw blade laser cutting fixing fixture according to claim 5, characterized in that: The central base (1) and the support arm (2) are both hollow structures and are interconnected. The inner wall of the slide (11) is provided with an air blowing hole (12).

7. The saw blade laser cutting fixing fixture according to claim 1, characterized in that: The slag removal device includes an air inlet (13) and a spiral air inlet pipe (14). The air inlet (13) is located on the central base (1) and is connected to the external high-pressure air supply system through the spiral air inlet pipe (14).

Images