Grinding wheel self-sharpening dressing device

Abstract

The utility model relates to abrasive wheel processing technical field, especially relates to a kind of abrasive wheel self-sharpening dressing device, including base, the base upper end left part is fixedly connected with four support rods, four the support rod upper end is fixedly connected with fixed seat in common, the fixed seat upper end is fixedly installed with rotating mechanism, the rotating mechanism right end is fixedly installed with fixed assembly, the base upper end right part is fixedly connected with mounting bracket, the left inner wall surface and right inner wall surface of mounting bracket are opened with two inside and outside through guide slot, and the mounting bracket upper end is inserted and installed with dressing mechanism.The utility model relates to a kind of abrasive wheel self-sharpening dressing device, starts second servo motor, drives bidirectional screw rod rotation, makes transmission block move along bidirectional screw rod, and further drives diamond dressing block on mounting plate and rotating abrasive wheel body contact to dress, adapts the dressing of different diameter abrasive wheel, and the applicability is higher.

Description

Technical Field

[0001] This utility model relates to the field of grinding wheel processing technology, and in particular to a grinding wheel self-sharpening dressing device. Background Technology

[0002] In modern mechanical manufacturing, grinding wheels, as key tools in grinding processes, are widely used in the machining of various products such as automotive parts (e.g., crankshafts, gearbox gears), precision instrument components, and mold cavities. Whether for rough machining to remove excess material or finish machining to ensure dimensional accuracy and surface roughness, the sharpness of the abrasive grains on the grinding wheel surface directly affects machining efficiency and workpiece quality. However, during use, the surface abrasive grains of the grinding wheel gradually become dull due to continuous friction. Some abrasive grains may also fall off due to stress or become clogged with grinding debris, leading to increased grinding resistance, scratches or burns on the workpiece surface, and even dimensional deviations. Therefore, it is essential to periodically perform self-sharpening dressing on the grinding wheel to restore its cutting performance and ensure smooth production. However, current self-sharpening dressing devices on the market use a fixed chuck, which can only accommodate grinding wheels within a specific diameter range. When dressing grinding wheels of different diameters, the original chuck must be disassembled and replaced with a corresponding fixing component. The entire process is cumbersome and time-consuming, not only reducing production efficiency but also easily causing a decrease in the positioning accuracy of the fixing structure due to repeated disassembly and assembly. In addition, the position adjustment of the dressing mechanism largely relies on manual operation. When the grinding wheel diameter changes, the relative position and contact degree between the dressing head and the grinding wheel must be repeatedly calibrated manually, increasing the workload of the operators. Therefore, we have introduced a self-sharpening dressing device for grinding wheels. Utility Model Content

[0003] The main purpose of this invention is to provide a self-sharpening dressing device for grinding wheels, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A self-sharpening dressing device for grinding wheels includes a base. Four support rods are fixedly connected to the upper left side of the base. A fixed seat is fixedly connected to the upper ends of the four support rods. A rotating mechanism is fixedly installed on the upper end of the fixed seat. A fixing component is fixedly installed on the right end of the rotating mechanism. A mounting frame is fixedly connected to the upper right side of the base. Two through guide grooves are opened on the left and right inner walls of the mounting frame. A dressing mechanism is inserted into the upper end of the mounting frame.

[0005] Preferably, the trimming mechanism includes a second servo motor, the output end of which is fixedly mounted with a bidirectional lead screw. Both the upper and lower outer surfaces of the bidirectional lead screw are threaded with transmission blocks. The left and right ends of the two transmission blocks are fixedly connected with first anti-detachment blocks. The front ends of the two transmission blocks are fixedly connected with mounting plates. The inner surfaces of the two mounting plates are fixedly connected with a plurality of diamond trimming blocks. The front ends of the two mounting plates are fixedly connected with guide blocks, the lower ends of which are fixedly connected to the upper ends of the base. A guide rod is interleaved and movably connected between the two guide blocks. The upper end of the guide rod is fixedly connected with a second anti-detachment block. The lower end of the second servo motor is fixedly connected to the upper end of the mounting frame, and the output end of the second servo motor passes through the upper end of the mounting frame and extends into the mounting frame.

[0006] By adopting the above technical solution, the position of the diamond dressing block can be adjusted by a bidirectional lead screw, which can be adapted to grinding wheels of different diameters. The first anti-detachment block, guide block and guide rod ensure stability and improve dressing accuracy.

[0007] Preferably, the rotating mechanism includes a motor base and a gearbox. A first servo motor is fixedly installed inside the motor base. The front end of the first servo motor is fixedly connected to the rear end of the gearbox, and the output end of the first servo motor passes through the rear end of the gearbox and extends into the gearbox. A first bevel gear is fixedly installed at the output end of the first servo motor. A second bevel gear is meshed with the outer surface of the first bevel gear. A first transmission gear is fixedly connected to the right end of the second bevel gear. A second transmission gear is meshed with the outer surface of the first transmission gear. A third transmission gear is meshed with the outer surface of the second transmission gear. A movable rod is fixedly connected to the right end of the third transmission gear. A flange is fixedly connected to the right end of the movable rod. The lower end of the motor base and the lower end of the gearbox are both fixedly connected to the upper end of the fixed base.

[0008] By adopting the above technical solution, the multi-stage gear transmission drives the flange to rotate stably, providing uniform and adjustable power to the grinding wheel to meet the needs of different dressing speeds.

[0009] Preferably, the front end of the second bevel gear is movably connected to the front inner wall of the gearbox via a rotating shaft, the right end of the first transmission gear and the right end of the second transmission gear are both movably connected to the right inner wall of the gearbox via rotating shafts, the left end of the second transmission gear and the left end of the third transmission gear are both movably connected to the left inner wall of the gearbox via rotating shafts, and the right end of the movable rod is movably connected to the right inner wall of the gearbox via a bearing.

[0010] By adopting the above technical solutions, the gears and moving rods are stably supported, transmission sway and wear are reduced, transmission accuracy is ensured, and the service life of the rotating mechanism is extended.

[0011] Preferably, the fixing assembly includes a first fixing plate, a grinding wheel body, a second fixing plate, and a locking nut. A threaded sleeve is fixedly connected to the right end of the first fixing plate, a rubber pad is fixedly connected to the right end of the second fixing plate, and the left end of the first fixing plate is fixedly connected to the right end of the flange.

[0012] By adopting the above technical solution: the threaded sleeve, the second fixed plate and the locking nut cooperate to achieve rapid fixing of the grinding wheel and adapt to grinding wheels with different inner diameters.

[0013] Preferably, the grinding wheel body is movably sleeved on the threaded sleeve rod, the inner wall surface of the second fixed plate and the inner wall surface of the rubber pad are both threadedly connected to the outer surface of the threaded sleeve rod and are located to the right of the grinding wheel body, and the inner wall surface of the locking nut is threadedly connected to the outer surface of the threaded sleeve rod and is located to the right of the rubber pad.

[0014] By adopting the above technical solution: threaded connection to press the grinding wheel body, it is ensured that it is firmly fixed, the force is evenly distributed, the dressing deviation is prevented, the disassembly is convenient, and the efficiency of changing the grinding wheel body is improved.

[0015] Preferably, the lower end of the bidirectional lead screw is movably connected to the lower inner wall of the mounting bracket via a rotating shaft, and several diamond dressing blocks are located above and below the grinding wheel body, respectively, and all are in contact with the outer surface of the grinding wheel body. The left and right parts of the two transmission blocks are respectively movably sleeved in the corresponding guide grooves.

[0016] By adopting the above technical solutions: stable support of the bidirectional lead screw ensures smooth rotation, synchronous operation of the upper and lower diamond dressing blocks improves efficiency, and guide groove limits the direction of the transmission block to prevent deviation.

[0017] Compared with the prior art, the present invention has the following beneficial effects: In use, the grinding wheel body to be dressed is first movably fitted onto the threaded sleeve rod at the right end of the first fixed plate in the fixed assembly. Then, the second fixed plate and the rubber pad fixedly connected to its right end are connected to the outer surface of the threaded sleeve rod through the inner wall thread and pressed against the grinding wheel body. Finally, the locking nut is used to lock and fix it. Different diameter grinding wheels can be adapted without changing the clamp. Then, the first servo motor in the motor base of the rotating mechanism is started. Through the transmission of the first bevel gear, the second bevel gear, the first transmission gear, the second transmission gear and the third transmission gear, the moving rod, the flange and the grinding wheel body on the fixed assembly are driven to rotate. Then, the second servo motor in the dressing mechanism is started, which drives the bidirectional screw to rotate, so that the transmission block moves along the bidirectional screw, thereby driving the diamond dressing block on the mounting plate to contact the rotating grinding wheel body for dressing. The first anti-detachment blocks at the left and right ends of the transmission block move in the guide groove to ensure stability, and the guide block moves along the guide rod to assist in positioning. The whole device does not require complicated disassembly and assembly, the adjustment time for adapting to different diameter grinding wheels is greatly shortened, the intensity of manual operation is reduced, the dressing accuracy is guaranteed and the production efficiency is improved. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a grinding wheel self-sharpening dressing device according to the present invention; Figure 2 This is a schematic diagram of the rotating mechanism of a grinding wheel self-sharpening dressing device according to the present invention; Figure 3 This is a cross-sectional view of the rotating mechanism of the self-sharpening dressing device for grinding wheels according to this utility model (the gearbox is shown in the cross-section). Figure 4 This is a schematic diagram of the structure of the fixing component of the self-sharpening dressing device for grinding wheels according to this utility model; Figure 5 This is an exploded view of the structure of the fixing component of the self-sharpening dressing device for grinding wheels according to this utility model; Figure 6 This is a schematic diagram of the dressing mechanism of a self-sharpening dressing device for grinding wheels according to this utility model.

[0019] In the diagram: 1. Base; 2. Support rod; 3. Fixed seat; 4. Rotating mechanism; 5. Mounting bracket; 6. Guide groove; 7. Dressing mechanism; 8. Fixed component; 41. Motor base; 42. Gearbox; 43. First servo motor; 44. First bevel gear; 45. Second bevel gear; 46. First transmission gear; 47. Second transmission gear; 48. Third transmission gear; 49. Movable rod; 491. Flange; 81. First fixed plate; 82. Grinding wheel body; 83. Second fixed plate; 84. Threaded sleeve; 85. Rubber pad; 86. Locking nut; 71. Second servo motor; 72. Bidirectional lead screw; 73. Transmission block; 74. First anti-detachment block; 75. Mounting plate; 76. Diamond dressing block; 77. Guide block; 78. Guide rod; 79. Second anti-detachment block. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0023] Please see Figure 1-6 This utility model provides a technical solution: A self-sharpening dressing device for grinding wheels includes a base 1. Four support rods 2 are fixedly connected to the upper left part of the base 1. A fixed seat 3 is fixedly connected to the upper end of the four support rods 2. A rotating mechanism 4 is fixedly installed on the upper end of the fixed seat 3. A fixing component 8 is fixedly installed on the right end of the rotating mechanism 4. A mounting frame 5 is fixedly connected to the upper right part of the base 1. Two through guide grooves 6 are opened on the left and right inner walls of the mounting frame 5. A dressing mechanism 7 is inserted into the upper end of the mounting frame 5.

[0024] In this embodiment, the trimming mechanism 7 includes a second servo motor 71. A bidirectional lead screw 72 is fixedly installed at the output end of the second servo motor 71. A transmission block 73 is threadedly connected to the upper and lower parts of the outer surface of the bidirectional lead screw 72. A first anti-detachment block 74 is fixedly connected to the left and right ends of the two transmission blocks 73. A mounting plate 75 is fixedly connected to the front end of the two transmission blocks 73. A plurality of diamond trimming blocks 76 are fixedly connected to the inner side of the two mounting plates 75. A guide block 77 is fixedly connected to the front end of the two mounting plates 75, and the lower end of the guide block 77 is fixedly connected to the upper end of the base 1. A guide rod 78 is movably connected between the two guide blocks 77. A second anti-detachment block 74 is fixedly connected to the upper end of the guide rod 78. 9. The lower end of the second servo motor 71 is fixedly connected to the upper end of the mounting bracket 5, and the output end of the second servo motor 71 passes through the upper end of the mounting bracket 5 and extends into the mounting bracket 5; the rotating mechanism 4 includes a motor base 41 and a reduction gearbox 42. A first servo motor 43 is fixedly installed in the motor base 41. The front end of the first servo motor 43 is fixedly connected to the rear end of the reduction gearbox 42, and the output end of the first servo motor 43 passes through the rear end of the reduction gearbox 42 and extends into the reduction gearbox 42. A first bevel gear 44 is fixedly installed at the output end of the first servo motor 43. A second bevel gear 45 is meshed with the outer surface of the first bevel gear 44. A first transmission gear 46 is fixedly connected to the right end of the second bevel gear 45. A second transmission gear 47 is meshed with the outer surface of the gearbox 47, and a third transmission gear 48 is meshed with the outer surface of the second transmission gear 47. A movable rod 49 is fixedly connected to the right end of the third transmission gear 48, and a flange 491 is fixedly connected to the right end of the movable rod 49. The lower end of the motor base 41 and the lower end of the gearbox 42 are both fixedly connected to the upper end of the fixed base 3. The front end of the second bevel gear 45 is movably connected to the front inner wall of the gearbox 42 via a rotating shaft. The right ends of the first transmission gear 46 and the second transmission gear 47 are both movably connected to the right inner wall of the gearbox 42 via rotating shafts. The left ends of the second transmission gear 47 and the third transmission gear 48 are both movably connected to the left inner wall of the gearbox 42 via rotating shafts. The movable rod 491... The right end of 9 is movably connected to the right inner wall of the gearbox 42 via a bearing; the fixing assembly 8 includes a first fixing plate 81, a grinding wheel body 82, a second fixing plate 83, and a locking nut 86. The right end of the first fixing plate 81 is fixedly connected to a threaded sleeve rod 84, and the right end of the second fixing plate 83 is fixedly connected to a rubber pad 85. The left end of the first fixing plate 81 is fixedly connected to the right end of the flange 491; the grinding wheel body 82 is movably sleeved on the threaded sleeve rod 84. The inner wall of the second fixing plate 83 and the inner wall of the rubber pad 85 are both threadedly connected to the outer surface of the threaded sleeve rod 84 and are located to the right of the grinding wheel body 82. The inner wall of the locking nut 86 is threadedly connected to the outer surface of the threaded sleeve rod 84 and is located to the right of the rubber pad 85.The lower end of the bidirectional lead screw 72 is movably connected to the lower inner wall of the mounting bracket 5 via a rotating shaft. Several diamond dressing blocks 76 are located above and below the grinding wheel body 82, respectively, and are all in contact with the outer surface of the grinding wheel body 82. The left and right parts of the two transmission blocks 73 are respectively movably fitted into the corresponding guide grooves 6.

[0025] It should be noted that this utility model is a self-sharpening dressing device for grinding wheels. In use, firstly, the grinding wheel body 82 to be dressed is movably fitted onto the threaded sleeve 84 at the right end of the first fixing disc 81 in the fixing assembly 8. Next, the second fixing disc 83 and the rubber pad 85 fixedly connected to its right end are threaded onto the outer surface of the threaded sleeve 84 via their inner wall threads, positioned to the right of the grinding wheel body 82 and pressing against it. Then, the locking nut 86 is threaded onto the outer surface of the threaded sleeve 84, positioned to the right of the rubber pad 85, and tightened. Tighten nut 86 to secure grinding wheel body 82. Then, start the first servo motor 43 in motor base 41 of rotating mechanism 4. The output of the first servo motor 43 drives the first bevel gear 44 to rotate. The first bevel gear 44 meshes with and drives the second bevel gear 45 to rotate. The second bevel gear 45 drives the first transmission gear 46 on the right to rotate. The first transmission gear 46 meshes with and drives the second transmission gear 47. The second transmission gear 47 then meshes with and drives the third transmission gear 48. The third transmission gear 48 drives the right movable rod 49 and the flange 491 on the right end of the movable rod 49 to rotate. The flange 491 then drives the fixed component 8 and grinding wheel body 82, which are fixedly connected to its right end, to rotate synchronously. Then, start the second servo motor 71 in dressing mechanism 7. The output of the second servo motor 71 drives the bidirectional lead screw 72 to rotate. The transmission blocks 73 on the upper and lower parts of the outer surface of the bidirectional lead screw 72 move along the thread direction of the bidirectional lead screw 72. The first anti-detachment blocks 74 on the left and right ends of the transmission blocks 73 move in the guide groove 6 of the mounting bracket 5 to ensure stable movement. The front end of the transmission block 73 is secured by the first anti-detachment block 74. The mounting plate 75 moves with the transmission block 73. Several diamond dressing blocks 76 on the inner side of the mounting plate 75 contact the outer surface of the rotating grinding wheel body 82 to perform dressing operations. At the same time, the guide block 77 at the front end of the mounting plate 75 assists in positioning along the guide rod 78. The second anti-detachment block 79 at the upper end of the guide rod 78 prevents the guide block 77 from falling off. After the dressing operation is completed, first turn off the second servo motor 71 and the first servo motor 43, then loosen the locking nut 86, and remove the rubber pad 85, the second fixed plate 83, and the dressed grinding wheel body 82.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A self-sharpening dressing device for grinding wheels, comprising a base (1), characterized in that: Four support rods (2) are fixedly connected to the upper left of the base (1). The upper ends of the four support rods (2) are fixedly connected to a fixed seat (3). A rotating mechanism (4) is fixedly installed on the upper end of the fixed seat (3). A fixing component (8) is fixedly installed on the right end of the rotating mechanism (4). A mounting frame (5) is fixedly connected to the upper right of the base (1). Two through guide grooves (6) are opened on the left inner wall and the right inner wall of the mounting frame (5). A trimming mechanism (7) is inserted into the upper end of the mounting frame (5). The dressing mechanism (7) includes a second servo motor (71), and a bidirectional lead screw (72) is fixedly installed at the output end of the second servo motor (71). A transmission block (73) is threadedly connected to the upper and lower parts of the outer surface of the bidirectional lead screw (72). A first anti-detachment block (74) is fixedly connected to the left and right ends of the two transmission blocks (73). A mounting plate (75) is fixedly connected to the front end of each of the two transmission blocks (73). Several diamond dressing blocks (74) are fixedly connected to the inner surfaces of the two mounting plates (75). 6) Guide blocks (77) are fixedly connected to the front ends of the two mounting plates (75), and the lower end of the guide block (77) is fixedly connected to the upper end of the base (1). A guide rod (78) is interwoven between the two guide blocks (77). A second anti-detachment block (79) is fixedly connected to the upper end of the guide rod (78). The lower end of the second servo motor (71) is fixedly connected to the upper end of the mounting frame (5), and the output end of the second servo motor (71) passes through the upper end of the mounting frame (5) and extends into the mounting frame (5).

2. The grinding wheel self-sharpening dressing device according to claim 1, characterized in that: The rotating mechanism (4) includes a motor mount (41) and a gearbox (42). A first servo motor (43) is fixedly installed inside the motor mount (41). The front end of the first servo motor (43) is fixedly connected to the rear end of the gearbox (42), and the output end of the first servo motor (43) passes through the rear end of the gearbox (42) and extends into the gearbox (42). A first bevel gear (44) is fixedly installed at the output end of the first servo motor (43), and a second bevel gear (45) is meshed with the outer surface of the first bevel gear (44). The right end of the second bevel gear (45) is fixedly connected to the first transmission gear (46), the outer surface of the first transmission gear (46) is meshed with the second transmission gear (47), the outer surface of the second transmission gear (47) is meshed with the third transmission gear (48), the right end of the third transmission gear (48) is fixedly connected to the movable rod (49), the right end of the movable rod (49) is fixedly connected to the flange (491), and the lower end of the motor base (41) and the lower end of the gearbox (42) are both fixedly connected to the upper end of the fixed base (3).

3. The grinding wheel self-sharpening dressing device according to claim 2, characterized in that: The front end of the second bevel gear (45) is movably connected to the front inner wall of the gearbox (42) via a rotating shaft. The right end of the first transmission gear (46) and the right end of the second transmission gear (47) are both movably connected to the right inner wall of the gearbox (42) via rotating shafts. The left end of the second transmission gear (47) and the left end of the third transmission gear (48) are both movably connected to the left inner wall of the gearbox (42) via rotating shafts. The right end of the movable rod (49) is movably connected to the right inner wall of the gearbox (42) via a bearing.

4. The grinding wheel self-sharpening dressing device according to claim 2, characterized in that: The fixing component (8) includes a first fixing plate (81), a grinding wheel body (82), a second fixing plate (83), and a locking nut (86). The right end of the first fixing plate (81) is fixedly connected to a threaded sleeve rod (84), the right end of the second fixing plate (83) is fixedly connected to a rubber pad (85), and the left end of the first fixing plate (81) is fixedly connected to the right end of the flange (491).

5. The grinding wheel self-sharpening dressing device according to claim 4, characterized in that: The grinding wheel body (82) is movably sleeved on the threaded sleeve rod (84). The inner wall surface of the second fixed plate (83) and the inner wall surface of the rubber pad (85) are both threadedly connected to the outer surface of the threaded sleeve rod (84) and are located to the right of the grinding wheel body (82). The inner wall surface of the locking nut (86) is threadedly connected to the outer surface of the threaded sleeve rod (84) and is located to the right of the rubber pad (85).

6. The grinding wheel self-sharpening dressing device according to claim 1, characterized in that: The lower end of the bidirectional lead screw (72) is movably connected to the lower inner wall of the mounting bracket (5) via a rotating shaft. Several diamond dressing blocks (76) are located above and below the grinding wheel body (82) respectively, and all are in contact with the outer surface of the grinding wheel body (82). The left and right parts of the two transmission blocks (73) are respectively movably sleeved in the corresponding guide grooves (6).

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