A reciprocating saw blade dressing device

Abstract

The utility model discloses a reciprocating saw blade finishing device, including mounting seat, two groups of symmetrical distribution's clamping plate are slidably installed on the mounting seat, two groups of slide are slidably installed in the mounting seat, two groups of slide are all fixedly installed with the moving block, two groups of clamping plate are respectively with corresponding moving block fixed connection, two groups of slide are all fixedly installed with the rack, be equipped with the gear between two groups of racks, the gear is respectively with two groups of rack meshing connection, the gear is through the mounting shaft and mounting seat rotation connection, two groups of slide are about mounting shaft and present central symmetry distribution, through the cylinder drive slide cooperation gear rack linkage mechanism, realize two groups of clamping plate's synchronous symmetrical movement, significantly promote the saw blade clamping efficiency, avoid the tedious operation of traditional bolt fixed, in the clamping process, the position of drum brush is automatically adjusted with the fixed frame, the metal powder adhered to the inner side of clamping plate is cleaned in real time, prevents the residual debris to scratch the saw blade surface.

Description

Technical Field

[0001] This utility model relates to the field of reciprocating saw blade trimming technology, specifically a reciprocating saw blade trimming device. Background Technology

[0002] Reciprocating saw blades, as core consumables in cutting operations, are widely used in metal processing, woodworking, building demolition, and emergency rescue. During high-speed reciprocating motion, the saw teeth continuously endure intense friction, impact, and alternating loads, leading to gradual dulling of the cutting edges, tooth deformation, and even breakage. This wear significantly reduces cutting efficiency, manifesting as increased feed resistance and roughness of the cut. In severe cases, it can even cause saw blade jamming or workpiece chipping. Especially when cutting high-hardness materials or workpieces containing impurities, the wear rate of the saw teeth accelerates further. All these factors make regular saw blade maintenance a necessary step to ensure work quality and efficiency.

[0003] Traditional dressing devices typically use mechanical clamps or bolts to fix the saw blade. While this ensures the stability of the saw blade, it is cumbersome to operate and inefficient. In addition, the metal powder generated during dressing can easily adhere to the contact surface of the clamping mechanism. If it is not cleaned in time, the residual debris may scratch the surface of the saw blade when clamping a new saw blade, affecting the dressing accuracy or even causing secondary wear. Utility Model Content

[0004] The purpose of this invention is to provide a reciprocating saw blade trimming device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a reciprocating saw blade trimming device, comprising a mounting base, on which two sets of symmetrically distributed clamping plates are slidably mounted; two sets of slides are slidably mounted inside the mounting base; each set of slides has a movable block fixedly mounted on it; the two sets of clamping plates are respectively fixedly connected to their corresponding movable blocks; each set of slides has a rack fixedly mounted on it; a gear is provided between the two sets of racks; the gear meshes with the two sets of racks; the gear is rotatably connected to the mounting base via a mounting shaft; the two sets of slides are centrally symmetrically distributed about the mounting shaft; a first slide rod corresponding to the slide is fixedly mounted inside the mounting base; the slide and the corresponding first slide rod are slidably sleeved; a fixing frame corresponding to the two sets of clamping plates is provided on the mounting base; two sets of symmetrically distributed roller brushes are rotatably mounted on the fixing frame; the two sets of roller brushes are correspondingly arranged with the two sets of clamping plates; and the two sets of roller brushes are respectively fitted to their corresponding clamping plates.

[0006] As a further preferred embodiment of this technical solution, a third spring is sleeved on the moving block, and the two ends of the third spring are fixedly connected to the moving block and the mounting base respectively. A torsion spring is sleeved on the mounting shaft, and the two ends of the torsion spring are fixedly connected to the gear and the mounting base respectively.

[0007] As a further preferred embodiment of this technical solution, two sets of symmetrically distributed first springs are sleeved on the first slide rod. The two ends of the two sets of first springs are respectively fixedly connected to the slide frame and the mounting base. A cylinder is fixedly installed in the mounting base, and the slide frame on the left side is fixedly connected to the output end of the cylinder piston rod.

[0008] As a further preferred embodiment of this technical solution, two sets of scraping brushes are slidably mounted on the fixed frame, and the scraping brushes are fitted in close contact with the roller brushes. A second sliding rod is fixedly mounted inside the fixed frame, and the scraping brushes are slidably connected to the second sliding rods via a slider. Two sets of symmetrically distributed second springs are fitted on the second sliding rods, and the two ends of the two sets of second springs are respectively fixedly connected to the sliders and the fixed frame. Two sets of cams corresponding to the scraping brushes are rotatably mounted on the fixed frame, and the cams are fitted in close contact with the corresponding sliders.

[0009] As a further preferred embodiment of this technical solution, a mounting rod is fixedly mounted on the mounting base, a first telescopic rod is slidably mounted inside the mounting rod, a second telescopic rod is slidably mounted inside the first telescopic rod, the end of the second telescopic rod away from the mounting rod is fixedly connected to the fixing frame, a threaded rod is rotatably mounted inside the mounting rod, and a threaded tube is rotatably mounted inside the first telescopic rod.

[0010] As a further preferred embodiment of this technical solution, the threaded rod passes through the first telescopic rod and is threadedly connected to the first telescopic rod, and the threaded tube passes through the second telescopic rod and is threadedly connected to the second telescopic rod.

[0011] As a further preferred embodiment of this technical solution, the threaded rod is provided with two sets of symmetrically distributed keyways, and the threaded tube is provided with two sets of symmetrically distributed key blocks. The key blocks and keyways are correspondingly arranged, and the threaded tube is slidably sleeved with the threaded rod through the key blocks and keyways.

[0012] This utility model provides a reciprocating saw blade dressing device, which has the following beneficial effects:

[0013] (1) This utility model uses a cylinder to drive the slide and a gear rack linkage mechanism to achieve synchronous and symmetrical movement of two sets of clamping plates, which significantly improves the saw blade clamping efficiency and avoids the cumbersome operation of traditional bolt fixing. During the clamping process, the roller brush automatically adjusts its position with the fixing frame to clean the metal powder adhering to the inner side of the clamping plate in real time, preventing residual debris from scratching the saw blade surface, ensuring the trimming accuracy and extending the service life of the saw blade.

[0014] (2) The threaded rod and threaded tube in the mounting rod of this utility model are linked by a keyway to achieve multi-level precise displacement of the fixing frame, so that the roller brush can clean all positions of the clamp plate. The fixing frame integrates the roller brush and the vibrating scraper. The high-frequency vibration of the scraper is driven by the cam to effectively remove the debris accumulated on the surface of the roller brush, forming a closed-loop cleaning system, avoiding manual intervention, and improving the stability and reliability of the device in continuous operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the structural separation of the mounting base and the carriage of this utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged view of the structure at point A;

[0018] Figure 4 This is a schematic diagram of the internal structure of the mounting rod of this utility model;

[0019] Figure 5 For the present utility model Figure 4 Enlarged view of the structure at point -B;

[0020] In the diagram: 1. Mounting base; 2. Clamping plate; 3. Slide; 4. Moving block; 5. Third spring; 6. Rack; 7. Gear; 8. Mounting shaft; 9. Torsion spring; 10. Cylinder; 11. First slide rod; 12. First spring; 13. Mounting rod; 14. First telescopic rod; 15. Second telescopic rod; 16. Threaded rod; 17. Keyway; 18. Threaded pipe; 19. Key block; 20. Roller brush; 21. Scraper brush; 22. Slider; 23. Second slide rod; 24. Second spring; 25. Cam; 26. Fixing bracket. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figure 1 , Figure 2 and Figure 3As shown, in this embodiment, a reciprocating saw blade trimming device includes a mounting base 1. Two sets of symmetrically distributed clamping plates 2 are slidably mounted on the mounting base 1. Two sets of slides 3 are slidably mounted inside the mounting base 1. Movable blocks 4 are fixedly mounted on each of the two sets of slides 3. The two sets of clamping plates 2 are respectively fixedly connected to the corresponding movable blocks 4. Racks 6 are fixedly mounted on each of the two sets of slides 3. Gears 7 are provided between the two sets of racks 6. The gears 7 are respectively meshed with the two sets of racks 6. The gears 7 are rotatably connected to the mounting base 1 through a mounting shaft 8. The two sets of slides 3 are centrally symmetrically distributed about the mounting shaft 8. A first slide rod 11 corresponding to the slide 3 is fixedly mounted inside the mounting base 1. The slide 3 and the corresponding first slide rod 11 are slidably sleeved. A fixing frame 26 corresponding to the two sets of clamping plates 2 is provided on the mounting base 1. Two sets of symmetrically distributed roller brushes 20 are rotatably mounted on the fixing frame 26. The two sets of roller brushes 20 are corresponding to the two sets of clamping plates 2. The two sets of roller brushes 20 are respectively attached to the corresponding clamping plates 2. A third spring 5 is sleeved on the moving block 4. The two ends of the third spring 5 are fixedly connected to the moving block 4 and the mounting base 1, respectively. A torsion spring 9 is sleeved on the mounting shaft 8. The two ends of the torsion spring 9 are fixedly connected to the gear 7 and the mounting base 1, respectively. Two sets of symmetrically distributed first springs 12 are sleeved on the first slide rod 11. The two ends of the two sets of first springs 12 are fixedly connected to the slide frame 3 and the mounting base 1, respectively. A cylinder 10 is fixedly installed in the mounting base 1. The left slide frame 3 is fixedly connected to the output end of the piston rod of the cylinder 10. When the cylinder 10 is started, the piston rod pushes the left slide frame 3 to slide along the first slide rod 11. Through the meshing transmission of the gear 7 and the rack 6, the right slide frame 3 is driven to move synchronously in the opposite direction, so that the two sets of clamping plates 2 can quickly clamp or release the saw blade. The elastic restoring effect of the torsion spring 9 and the third spring 5 ensures that the clamping force is uniform and stable, avoiding rigid impact.

[0023] like Figure 4 and Figure 5As shown, two sets of scraper brushes 21 are slidably mounted on the fixing frame 26. The scraper brushes 21 are fitted against the roller brush 20. A second slide rod 23 is fixedly mounted inside the fixing frame 26. The scraper brushes 21 are slidably connected to the second slide rod 23 via a slider 22. Two sets of symmetrically distributed second springs 24 are fitted onto the second slide rod 23. The two ends of the two sets of second springs 24 are fixedly connected to the slider 22 and the fixing frame 26, respectively. Two sets of cams 25, corresponding to the scraper brushes 21, are rotatably mounted on the fixing frame 26. The cams 25 are fitted against the corresponding sliders 22. The mounting base 1 is fixedly mounted with... The system is equipped with an installation rod 13, within which a first telescopic rod 14 is slidably installed. A second telescopic rod 15 is slidably installed within the first telescopic rod 14. The end of the second telescopic rod 15 furthest from the installation rod 13 is fixedly connected to a fixing frame 26. A threaded rod 16 is rotatably installed within the installation rod 13, and a threaded tube 18 is rotatably installed within the first telescopic rod 14. The threaded rod 16 passes through the first telescopic rod 14 and is threadedly connected to it. The threaded tube 18 passes through the second telescopic rod 15 and is threadedly connected to it. Two sets of symmetrically distributed... The keyway 17 and the threaded tube 18 are provided with two sets of symmetrically distributed key blocks 19, which are correspondingly arranged with the keyway 17. The threaded tube 18 is slidably connected to the threaded rod 16 through the key blocks 19 and the keyway 17. The motor on the fixing frame 26 drives the roller brush 20 to rotate at high speed, which fits tightly against the inner side of the corresponding clamping plate 2, automatically removing the adhering metal powder. At the same time, the motor on the fixing frame 26 drives the cam 25 to rotate periodically within the fixing frame 26, pushing the scraper 21 to vibrate up and down along the second slide rod 23. The elastic restoring action of the second spring 24 makes the scraper 21 continuously scrape. The debris accumulated on the surface of the roller brush 20 forms a closed loop with this dual cleaning mechanism, ensuring that the contact surface of the clamping plate 2 is always clean, avoiding debris from interfering with the subsequent saw blade clamping accuracy, and improving the continuity and stability of the dressing process. At the same time, the motor in the mounting rod 13 drives the threaded rod 16 to rotate, and through the sliding cooperation of the keyway 17 and the key block 19, it drives the threaded tube 18 to rotate synchronously, thereby adjusting the extension and retraction of the first telescopic rod 14 and the second telescopic rod 15 respectively, so that the fixing frame 26 drives the roller brush 20 to accurately move to various positions of the clamping plate 2, completing the comprehensive cleaning of the clamping plate 2.

[0024] This utility model provides a reciprocating saw blade trimming device. The specific working principle is as follows: When the cylinder 10 is started, the piston rod pushes the left slide 3 to slide along the first slide rod 11. Through the meshing transmission of the gear 7 and rack 6, the right slide 3 moves synchronously in the opposite direction, causing the two sets of clamping plates 2 to quickly clamp or release the saw blade. The elastic restoring effect of the torsion spring 9 and the third spring 5 ensures uniform and stable clamping force, avoiding rigid impact. The motor on the fixed frame 26 drives the roller brush 20 to rotate at high speed, tightly fitting against the inner surface of the corresponding clamping plate 2, automatically removing adhering metal powder. Simultaneously, the motor on the fixed frame 26 drives the cam 25 to rotate periodically within the fixed frame 26, pushing the scraper 2... 1. Vibrating up and down along the second slide bar 23, the elastic restoring action of the second spring 24 causes the scraper 21 to continuously scrape away the debris accumulated on the surface of the roller brush 20. This dual cleaning mechanism forms a closed loop, ensuring that the contact surface of the clamping plate 2 is always clean, avoiding debris from interfering with the subsequent saw blade clamping accuracy, and improving the continuity and stability of the trimming process. At the same time, the motor in the mounting rod 13 drives the threaded rod 16 to rotate, and through the sliding cooperation of the keyway 17 and the key block 19, it drives the threaded tube 18 to rotate synchronously, thereby adjusting the extension and retraction of the first telescopic rod 14 and the second telescopic rod 15 respectively, so that the fixing frame 26 drives the roller brush 20 to accurately move to various positions of the clamping plate 2, completing the comprehensive cleaning of the clamping plate 2.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reciprocating saw blade dressing device, comprising a mounting base (1), characterized in that: Two sets of symmetrically distributed clamping plates (2) are slidably mounted on the mounting base (1). Two sets of slides (3) are slidably mounted inside the mounting base (1). Movable blocks (4) are fixedly mounted on each of the two sets of slides (3). The two sets of clamping plates (2) are respectively fixedly connected to the corresponding movable blocks (4). Racks (6) are fixedly mounted on each of the two sets of slides (3). A gear (7) is provided between the two sets of racks (6). The gear (7) is meshed with the two sets of racks (6). The gear (7) is rotatably connected to the mounting base (1) through the mounting shaft (8). The slide (3) is centrally symmetrical about the mounting shaft (8). The mounting base (1) is fixedly installed with a first slide rod (11) corresponding to the slide (3). The slide (3) and the corresponding first slide rod (11) are slidably connected. The mounting base (1) is provided with a fixing frame (26) corresponding to the two sets of clamping plates (2). Two sets of symmetrically distributed roller brushes (20) are rotatably installed on the fixing frame (26). The two sets of roller brushes (20) are corresponding to the two sets of clamping plates (2). The two sets of roller brushes (20) are respectively attached to the corresponding clamping plates (2).

2. The reciprocating saw blade dressing device according to claim 1, characterized in that: A third spring (5) is sleeved on the movable block (4), and the two ends of the third spring (5) are fixedly connected to the movable block (4) and the mounting base (1) respectively. A torsion spring (9) is sleeved on the mounting shaft (8), and the two ends of the torsion spring (9) are fixedly connected to the gear (7) and the mounting base (1) respectively.

3. The reciprocating saw blade dressing device according to claim 1, characterized in that: Two sets of symmetrically distributed first springs (12) are sleeved on the first slide rod (11). The two ends of the two sets of first springs (12) are fixedly connected to the slide (3) and the mounting base (1) respectively. A cylinder (10) is fixedly installed in the mounting base (1). The slide (3) on the left side is fixedly connected to the output end of the piston rod of the cylinder (10).

4. The reciprocating saw blade dressing device according to claim 1, characterized in that: Two sets of scraper brushes (21) are slidably mounted on the fixed frame (26). The scraper brushes (21) are fitted with the roller brush (20). A second slide rod (23) is fixedly mounted inside the fixed frame (26). The scraper brushes (21) are slidably connected to the second slide rod (23) through the slider (22). Two sets of symmetrically distributed second springs (24) are fitted on the second slide rod (23). The two ends of the two sets of second springs (24) are fixedly connected to the slider (22) and the fixed frame (26) respectively. Two sets of cams (25) corresponding to the scraper brushes (21) are rotatably mounted on the fixed frame (26). The cams (25) are fitted with the corresponding sliders (22).

5. The reciprocating saw blade dressing device according to claim 1, characterized in that: An installation rod (13) is fixedly installed on the mounting base (1). A first telescopic rod (14) is slidably installed inside the installation rod (13). A second telescopic rod (15) is slidably installed inside the first telescopic rod (14). The end of the second telescopic rod (15) away from the installation rod (13) is fixedly connected to the fixing frame (26). A threaded rod (16) is rotatably installed inside the installation rod (13). A threaded tube (18) is rotatably installed inside the first telescopic rod (14).

6. The reciprocating saw blade dressing device according to claim 5, characterized in that: The threaded rod (16) passes through the first telescopic rod (14) and is threadedly connected to the first telescopic rod (14), and the threaded tube (18) passes through the second telescopic rod (15) and is threadedly connected to the second telescopic rod (15).

7. A reciprocating saw blade dressing device according to claim 5, characterized in that: The threaded rod (16) has two sets of symmetrically distributed keyways (17), and the threaded tube (18) has two sets of symmetrically distributed key blocks (19). The key blocks (19) and keyways (17) are arranged correspondingly, and the threaded tube (18) is slidably connected to the threaded rod (16) through the key blocks (19) and keyways (17).

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