Abrasive belt rotating mechanism

Abstract

The utility model relates to the technical field of polishing, propose sand belt rotary mechanism for solving the sand belt in use deviation problem, including mounting panel, polishing wheel, driven wheel, sand belt, the left and right ends of mounting panel are provided with cantilevered slab, the cantilevered slab upper end is fixed in the mounting panel, form the installation spacing between two piece the cantilevered slab, the installation spacing is provided with the reversing motor, commutator, the commutator fixed setting is in the cantilevered slab on, first output shaft fixed connection has first mounting seat, the first mounting seat is fixed with polishing motor and sets up, the polishing wheel fixed setting is in the rotating shaft of polishing motor, second output shaft is provided with second mounting seat, the driven wheel rotation sets up in second mounting seat, the angle adjusting device for adjusting the front and back inclination angle of driven wheel is provided between second mounting seat with second output shaft, the sand belt is around set up in polishing wheel with driven wheel.

Description

Technical Field

[0001] This utility model relates to the field of grinding technology, and in particular to a sanding belt rotary mechanism. Background Technology

[0002] In numerous fields such as industrial manufacturing, wood processing, metal processing, and automotive repair and maintenance, surface polishing is a crucial process. Its purpose is to remove burrs, oxide layers, scratches, and other defects from workpiece surfaces, improving their smoothness, flatness, and precision to meet the requirements of subsequent assembly, painting, or direct use. With the ever-increasing demands for efficiency and quality in industrial production, traditional manual polishing methods, due to their low efficiency, inconsistent polishing quality, high labor intensity, and reliance on operator skills, are no longer adequate for the needs of modern large-scale production. This has spurred the rapid development of automated polishing equipment.

[0003] Belt abrasive grinding, as a highly efficient automated grinding method, has been widely used in the field of automated grinding due to its advantages such as high grinding efficiency, good grinding effect, and wide applicability. The belt rotary mechanism, as the core component of belt abrasive grinding equipment, primarily functions to drive the abrasive belt in a stable and continuous rotary motion, maintaining a reasonable contact pressure and relative speed between the abrasive belt and the workpiece surface to achieve effective grinding of the workpiece surface.

[0004] Existing belt sander mechanisms are prone to causing the sander belt to slowly deviate from the center position of the sanding wheel due to installation errors between the grinding wheel and the driven wheel, as well as the reaction force of the components on the sander belt during grinding, which affects the accuracy of grinding positioning. Therefore, this case was developed to solve this problem. Utility Model Content

[0005] Therefore, in view of the above problems, this utility model proposes a sanding belt rotation mechanism to solve the problem of sanding belt misalignment during use.

[0006] To solve the above-mentioned technical problems, the solution adopted by this utility model is: a sanding belt rotary mechanism, characterized in that: it includes a mounting plate, a grinding wheel, a driven wheel, and a sanding belt; cantilever plates are provided at the left and right ends of the mounting plate; the upper end of the cantilever plates is fixed to the mounting plate; an installation gap is formed between the two cantilever plates; a commutator motor and a commutator are arranged within the installation gap; the housing of the commutator is fixedly mounted on one of the cantilever plates; the housing of the commutator motor is fixedly mounted on the commutator; the rotation shaft of the commutator motor is connected to the input shaft of the commutator; and the... The first and second output shafts of the device are rotatably mounted on the two cantilever plates. The first output shaft is fixedly connected to a first mounting base, on which a grinding motor is fixedly mounted. The grinding wheel is fixedly mounted on the rotating shaft of the grinding motor. The second output shaft is provided with a second mounting base, on which the driven wheel is rotatably mounted. An angle adjustment device for adjusting the forward and backward tilt angle of the driven wheel is provided between the second mounting base and the second output shaft. The sanding belt is wound around the grinding wheel and the driven wheel.

[0007] A further improvement is that a first connecting shaft is provided between the first output shaft and the first mounting base, with one end of the first connecting shaft fixedly connected to the first output shaft and the other end fixedly mounted on the first mounting base.

[0008] A further improvement is that a second connecting shaft is provided between the second output shaft and the second mounting base, with one end of the second connecting shaft fixedly connected to the second output shaft and the other end fixedly mounted on the second mounting base.

[0009] A further improvement is made to the angle adjustment device, which includes a fixed plate, a fixed disk, and a rotating disk. The fixed plate is fixedly mounted on the second connecting shaft at its rear end along the front-rear direction. The fixed disk is fixedly mounted on the front end of the fixed plate. The rotating disk is movably sleeved on the fixed disk. A locking fastener for limiting the rotation of the rotating disk is provided between the rotating disk and the fixed disk. The second mounting base is fixedly mounted on the rotating disk.

[0010] A further improvement is that the two cantilever plates are symmetrically provided with avoidance grooves around which the avoidance sand belt is wound.

[0011] A further improvement is that: the first mounting base is an L-shaped mounting base, a flange is fixedly mounted on the first connecting shaft, the flange is locked onto the right end face of the L-shaped mounting base, the housing of the grinding motor is fixedly mounted on the rear surface of the L-shaped mounting base, and the rotating shaft of the grinding motor passes through the L-shaped mounting base and is fixedly connected to the grinding wheel.

[0012] A further improvement is that the second mounting base is a U-shaped mounting base, and a mounting shaft is fixedly provided at the open end of the U-shaped mounting base along the front-back direction. The driven wheel is slidably sleeved on the mounting shaft, and the left end face of the U-shaped mounting base is fixedly provided on the rotating disk.

[0013] By adopting the aforementioned technical solution, the beneficial effects of this utility model are: 1. Addressing the core issue of existing belt sander mechanisms where installation errors and grinding reaction forces easily cause the sander belt to deviate from the center of the grinding wheel, this mechanism innovatively incorporates an angle adjustment device. By removing bolts and rotating the adjustment disc, the forward and backward tilt angle of the driven wheel relative to the grinding wheel can be flexibly changed. When the sander belt shifts forward, the driven wheel is adjusted to tilt backward; when it shifts backward, the driven wheel is adjusted to rotate forward. By utilizing the change in the relative position of the driven wheel and the grinding wheel, the belt misalignment is slowly corrected, ensuring that the sander belt always remains in contact with the center of the grinding wheel. This avoids grinding positioning deviations caused by sander belt misalignment and significantly improves grinding accuracy. After precise positioning, the sander belt maintains uniform and stable contact pressure and relative speed with the workpiece surface, effectively removing burrs, oxide layers, scratches, and other defects. This reduces problems such as localized over-grinding or incomplete grinding caused by uneven contact, ensuring that the workpiece surface smoothness, flatness, and precision meet standards, laying a high-quality foundation for subsequent assembly, painting, or direct use.

[0014] 2. By constructing a stable mounting frame through the mounting plate and cantilever plate, the installation stability of the commutator, commutator motor and the mounting distance can be increased, which can further ensure the installation positioning of the first mounting seat and the second mounting seat, reduce vibration interference during operation and improve the overall operating stability of the mechanism. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the sand belt rotation mechanism according to an embodiment of the present utility model.

[0016] Figure 2 This is a side view of the sand belt rotation mechanism according to an embodiment of the present invention.

[0017] Figure 3 This is a top view schematic diagram of the sand belt rotation mechanism according to an embodiment of this utility model. Detailed Implementation

[0018] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0019] refer to Figures 1 to 3The present invention discloses a sanding belt 13 rotary mechanism, including a mounting plate 10, a grinding wheel 11, a driven wheel 12, and a sanding belt 13. Cantilever plates 14 are provided at the left and right ends of the mounting plate 10. The upper ends of the cantilever plates 14 are fixed to the mounting plate 10, and an installation gap 15 is formed between the two cantilever plates 14. A commutator motor 16 and a commutator 17 are arranged within the installation gap 15. The housing of the commutator 17 is fixedly mounted on one of the cantilever plates 14, and the housing of the commutator motor 16 is fixedly mounted on the commutator 17. The rotation shaft of the commutator motor 16 is connected to the input shaft of the commutator 17. The two laterally distributed first output shafts 18 and second output shafts 19 of the commutator 17 are respectively... The first output shaft 18 is fixedly connected to a first mounting base 20, on which a grinding motor 21 is fixedly mounted. The grinding wheel 11 is fixedly mounted on the rotating shaft of the grinding motor 21. The second output shaft 19 is provided with a second mounting base 22, on which the driven wheel 12 is rotatably mounted. An angle adjustment device is provided between the second mounting base 22 and the second output shaft 19 to adjust the forward and backward tilt angle of the driven wheel 12 to correct the winding position of the sanding belt 13. The sanding belt 13 is wound around the grinding wheel 11 and the driven wheel 12. The two cantilever plates 14 are symmetrically provided with avoidance grooves 23 to avoid the sanding belt 13.

[0020] A first connecting shaft 24 is provided between the first output shaft 18 and the first mounting base 20. One end of the first connecting shaft 24 is fixedly connected to the first output shaft 18, and the other end is fixedly mounted on the first mounting base 20. The first mounting base 20 is an L-shaped mounting base. A flange 25 is fixedly mounted on the first connecting shaft 24. The flange 25 is bolted to the right end face of the L-shaped mounting base. The housing of the grinding motor 21 is fixedly mounted on the rear surface of the L-shaped mounting base. The rotating shaft of the grinding motor 21 passes through the L-shaped mounting base and is fixedly connected to the grinding wheel 11.

[0021] A second connecting shaft 26 is provided between the second output shaft 19 and the second mounting base 22. One end of the second connecting shaft 26 is fixedly connected to the second output shaft 19, and the other end is fixedly mounted on the second mounting base 22. The angle adjustment device includes a fixed plate 27, a fixed disk 28, and a rotating disk 29. The fixed plate 27 is fixedly mounted on the second connecting shaft 26 at its rear end along the front-rear direction. The fixed disk 28 is fixedly mounted on the front end of the fixed plate 27. The rotating disk 29 is movably sleeved on the fixed disk 28. A locking fastener 30 for limiting the rotation of the rotating disk 29 is provided between the rotating disk 29 and the fixed disk 28. The locking fastener 30 is a bolt. The second mounting base 22 is fixedly mounted on the rotating disk 29. The second mounting base 22 is a U-shaped mounting base. A mounting shaft 31 is fixedly provided at the open end of the U-shaped mounting base along the front-rear direction. The driven wheel 12 is slidably sleeved on the mounting shaft 31. The left end face of the U-shaped mounting base is fixedly mounted on the rotating disk 29.

[0022] How to use the rotating mechanism of the sanding belt 13: The mounting plate 10 is installed on the grinding equipment. The grinding motor 21 starts and drives the grinding wheel 11 to rotate the sanding belt 13 to grind the surface of the object. The reversing motor 16 rotates and drives the first output shaft 18 and the second output shaft 19 of the reversing device 17 to rotate synchronously, so as to adjust the front and rear tilt angles of the grinding wheel 11 and the driven wheel 12 to adapt to grinding objects with different curved surfaces. If the sanding belt 13 is found to be offset towards the front of the grinding wheel 11 during use, the bolts are removed, and the position of the rotating disk 29 is adjusted by rotating it backward so that the driven wheel 12 is tilted backward relative to the grinding wheel 11. Then the bolts are tightened to fix the rotating disk 29, and the offset sanding belt 13 is gradually corrected by adjusting the relative tilt of the driven wheel 12 and the grinding wheel 11. Similarly, if the sanding belt 13 is offset towards the rear of the grinding wheel 11, the driven wheel 12 is adjusted to rotate forward.

[0023] 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 above are only illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A sanding belt rotary mechanism, characterized in that: The assembly includes a mounting plate, a grinding wheel, a driven wheel, and a sanding belt. Cantilever plates are provided at the left and right ends of the mounting plate, with the upper ends of the cantilever plates fixed to the mounting plate. An installation gap is formed between the two cantilever plates, within which a commutator motor and a commutator are installed. The commutator housing is fixedly mounted on one of the cantilever plates, and the commutator motor housing is fixedly mounted on the commutator. The rotating shaft of the commutator is connected to the input shaft of the commutator. The two laterally distributed first and second output shafts of the commutator rotatably pass through the two cantilever plates. A first mounting base is fixedly connected to the first output shaft, and a grinding motor is fixedly mounted on the first mounting base. The grinding wheel is fixedly mounted on the rotating shaft of the grinding motor. A second mounting base is provided on the second output shaft, and the driven wheel rotatably mounts on the second mounting base. An angle adjustment device for adjusting the forward and backward tilt angle of the driven wheel is provided between the second mounting base and the second output shaft. The sanding belt is wound around the grinding wheel and the driven wheel.

2. The sand belt rotary mechanism according to claim 1, characterized in that: A first connecting shaft is provided between the first output shaft and the first mounting base. One end of the first connecting shaft is fixedly connected to the first output shaft, and the other end is fixedly mounted on the first mounting base.

3. The sanding belt rotary mechanism according to claim 1, characterized in that: A second connecting shaft is provided between the second output shaft and the second mounting base. One end of the second connecting shaft is fixedly connected to the second output shaft, and the other end is fixedly mounted on the second mounting base.

4. The sanding belt rotary mechanism according to claim 3, characterized in that: The angle adjustment device includes a fixed plate, a fixed disk, and a rotating disk. The fixed plate is fixedly mounted on the second connecting shaft at its rear end along the front-rear direction. The fixed disk is fixedly mounted on the front end of the fixed plate. The rotating disk is movably sleeved on the fixed disk. A locking fastener for limiting the rotation of the rotating disk is passed between the rotating disk and the fixed disk. The second mounting base is fixedly mounted on the rotating disk.

5. The sand belt rotary mechanism according to claim 4, characterized in that: The two cantilever plates are symmetrically provided with avoidance grooves around which avoidance sand belts are wound.

6. The sand belt rotary mechanism according to claim 2, characterized in that: The first mounting base is L-shaped. A flange is fixedly mounted on the first connecting shaft. The flange is locked onto the right end face of the L-shaped mounting base. The housing of the grinding motor is fixedly mounted on the rear surface of the L-shaped mounting base. The rotating shaft of the grinding motor passes through the L-shaped mounting base and is fixedly connected to the grinding wheel.

7. The sanding belt rotary mechanism according to claim 4, characterized in that: The second mounting base is U-shaped. The open end of the U-shaped mounting base is fixedly provided with a mounting shaft in the front-back direction. The driven wheel is slidably sleeved on the mounting shaft. The left end face of the U-shaped mounting base is fixedly provided on the rotating disk.

Images