Abrasive belt polishing machine

Abstract

The utility model relates to the technical field of abrasive belt polishing, and provides an abrasive belt polishing machine which is characterized in that the top of a bearing plate is fixedly connected with a main machine shell, the interior of the main machine shell is rotatably connected with a threaded rod and extends out of one end, the extending-out end of the threaded rod is fixedly connected with a rocker, and the rotation directions of threads on the two sides of the threaded rod are opposite; the outer surface of the threaded rod is in threaded connection with two inner threaded sleeves, the bottoms of the inner threaded sleeves are fixedly connected with limiting plates, limiting grooves are formed in the bottom of the inner surface of the main case, the outer surfaces of the two limiting plates are arranged in the limiting grooves, and the tops of the inner threaded sleeves are fixedly connected with first shaft blocks. The device is provided with a polishing lifting structure, can adapt to parts which are different in thickness and need to be polished, can avoid material waste caused by excessive polishing by accurately adjusting the polishing depth, and can flexibly adjust the polishing depth according to actual conditions of all parts for workpieces which are complex in shape and different in surface height.

Description

Technical Field

[0001] The utility model relates to the technical field of abrasive belt polishing, in particular to an abrasive belt polishing machine. Background Art

[0002] An abrasive belt polishing machine is a device widely used in industry and manufacturing, and has the following important functions: it can remove defects, scratches, oxide layers, etc. on the surface of workpieces, make the surface smooth and flat, and improve the appearance quality of workpieces. Burrs are easily generated during the processing of workpieces, and the abrasive belt polishing machine can effectively remove these burrs, improve the accuracy and quality of workpieces. For the uneven surface of workpieces, the abrasive belt polishing machine can grind and trim it to reach the required flatness. By polishing, impurities and oxide layers on the surface are removed, which can enhance the corrosion resistance of materials and extend the service life of workpieces.

[0003] However, in the prior art, for example, Chinese Publication No.: CN115229628B, "An Abrasive Belt Polishing Machine", this invention discloses an abrasive belt polishing machine, which includes a polishing box and a loading conveyor table and an unloading conveyor table arranged on both sides of the polishing box. The polishing main body includes a base and a support frame. The support frame is slidably installed on the base. Grinding wheel members are installed on both sides of the support frame. The grinding wheel member includes a grinding head wheel, a driven wheel and an inflatable tensioning wheel mechanism. A driving mechanism is installed on the top of the support frame. A lifting mechanism is movably hinged and installed on the top of the support frame. A translation pushing and pulling mechanism is installed at one end of the base. When the workpiece passes through the position between the two grinding head wheels through the roller path, the grinding head wheel drives the abrasive belt to rotate at high speed. At this time, the abrasive belt can polish the surface of the workpiece. The lifting mechanism can adjust the deflection angle of the grinding wheel member to facilitate the advancement and retreat of the workpiece and improve the stability of the device. The translation pushing and pulling mechanism can push the support frame to move on the base, so as to conveniently adjust the distance between the two grinding head wheels and be able to adapt to the grinding work of workpieces of different sizes.

[0004] However, this device does not set a grinding lifting structure and cannot adapt to workpieces to be ground with different thicknesses. It cannot accurately adjust the grinding depth, resulting in waste of materials due to excessive grinding. For workpieces with complex shapes and different surface heights, it cannot flexibly adjust the grinding depth according to the actual conditions of each part. The device does not set an abrasive belt tensioning structure. During the grinding process, due to the unevenness or shape change of the workpiece surface, the abrasive belt cannot always be closely attached to the workpiece, which is not convenient for replacing the abrasive belt and the operation is complex, increasing the labor cost. Summary of the Utility Model

[0005] The object of the present utility model is to solve the problems existing in the prior art, such as being unable to adapt to parts to be polished with different thicknesses, unable to accurately adjust the polishing depth, resulting in waste of materials due to over-polishing, for workpieces with complex shapes and different surface heights, unable to flexibly adjust the polishing depth according to the actual conditions of each part, during the polishing process, due to the unevenness or shape change of the workpiece surface, the abrasive belt cannot always be closely attached to the workpiece, inconvenient to replace the abrasive belt, complex operation, and increased labor cost.

[0006] In order to achieve the above object, the present utility model adopts the following technical solutions: An abrasive belt polishing machine includes a bearing plate, the top of the bearing plate is fixedly connected with a main machine shell, a threaded rod is rotatably connected inside the main machine shell and extends out at one end, the extending end of the threaded rod is fixedly connected with a rocker, the two sides of the threaded rod have opposite thread rotation directions, two internal thread sleeves are threadedly connected to the outer surface of the threaded rod, the bottom of the internal thread sleeve is fixedly connected with a limiting plate, a limiting groove is opened at the bottom of the inner surface of the main machine shell, the outer surfaces of the two limiting plates are arranged inside the limiting groove, the top of the internal thread sleeve is fixedly connected with a first shaft block, a connecting rod is rotatably connected inside the first shaft block, the end of the connecting rod away from the first shaft block is rotatably connected with a second shaft block, and the tops of the two second shaft blocks are fixedly connected with a rod sleeve. By rotating the threaded rod with the rocker, the rotating thread will drive the internal thread sleeve.

[0007] As a preferred embodiment, through grooves are opened on both sides of the main machine shell, and the outer surface of the rod sleeve is arranged inside the two through grooves, and the rod sleeve can move inside the through grooves opened in the main machine shell.

[0008] As a preferred embodiment, a power rod is rotatably connected to the inner surface of the rod sleeve, and a driving cylinder is fixedly connected to one end of the power rod, and the power rod can move inside the rod sleeve.

[0009] As a preferred embodiment, a positioning rod is fixedly connected to the top of the rod sleeve, a positioning sleeve is movably sleeved on the outer surface of the positioning rod, and a spring is movably sleeved on the outer surface of the positioning rod. By compressing the spring between the driving cylinder and the driven sleeve, the abrasive belt can be sleeved on its outer surface.

[0010] As a preferred embodiment, the bottom of the spring is fixedly connected to the top of the rod sleeve, and the top of the spring is fixedly connected to the bottom of the positioning sleeve. Under the elastic action of the spring, the positioning sleeve will move away from the positioning rod, so that the abrasive belt can be tensioned.

[0011] As a preferred embodiment, an extension rod is fixedly connected to the side of the positioning sleeve away from the main machine shell, and a driven sleeve is rotatably connected to the outer surface of the extension rod, and the driven sleeve will rotate on the outer surface of the extension rod.

[0012] As a preferred embodiment, a sand belt is drivingly connected to the outer surface of the driven sleeve, and one side of the inner surface of the sand belt away from the driven sleeve is drivingly connected to the outer surface of the driving cylinder. Then, under the driving action of the sand belt, the driven sleeve will rotate on the outer surface of the extension rod.

[0013] As a preferred embodiment, fixing rods are fixedly connected to both sides of the rod sleeve, and a motor is fixedly connected to the inner sides of the two fixing rods. The output end of the motor is fixedly connected to one end of the power rod away from the driving cylinder. After the motor is powered on, it will drive the power rod and the driving cylinder to rotate.

[0014] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0015] 1. In the present utility model, the device is provided with a grinding lifting structure, which can adapt to parts to be ground with different thicknesses, can accurately adjust the grinding depth to avoid waste of materials caused by over-grinding, and for workpieces with complex shapes and different surface heights, the grinding depth can be flexibly adjusted according to the actual conditions of each part.

[0016] 2. In the present utility model, the device is provided with a sand belt tensioning structure. During the grinding process, due to the unevenness or shape change of the workpiece surface, elastic tensioning can keep the sand belt always closely attached to the workpiece, which is convenient for replacing the sand belt, simple to operate, and reduces the labor cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. 1 is a three-dimensional structural diagram of a sand belt polishing machine provided by the present utility model;

[0018] Figure 2 FIG. 2 is a rear structural diagram of a sand belt polishing machine provided by the present utility model;

[0019] Figure 3 FIG. 3 is a front structural diagram of a sand belt polishing machine provided by the present utility model;

[0020] Figure 4 FIG. 4 is a disassembled structural diagram of a sand belt polishing machine provided by the present utility model;

[0021] Figure 5 FIG. 5 is a sectional structural diagram of a sand belt polishing machine provided by the present utility model.

[0022] LEGEND DESCRIPTION:

[0023] 1. Bearing plate; 2. Main housing; 3. Threaded rod; 4. Rocker; 5. Internal thread sleeve; 6. Limit plate; 7. Limit groove; 8. First shaft block; 9. Connecting rod; 10. Second shaft block; 11. Rod sleeve; 12. Through groove; 13. Power rod; 14. Active cylinder; 15. Positioning rod; 16. Positioning sleeve; 17. Spring; 18. Extension rod; 19. Driven sleeve; 20. Sand belt; 21. Fixed rod; 22. Motor. Detailed implementation manner

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1 to 5 , the present invention provides a technical solution: a sand belt polishing machine, including a bearing plate 1, the top of the bearing plate 1 is fixedly connected with a main housing 2, the inside of the main housing 2 is rotatably connected with a threaded rod 3 and extends out one end, the extended end of the threaded rod 3 is fixedly connected with a rocker 4, the two sides of the threaded rod 3 have opposite thread rotation directions, the outer surface of the threaded rod 3 is threadedly connected with two internal thread sleeves 5, the bottom of the internal thread sleeve 5 is fixedly connected with a limit plate 6, the inner surface bottom of the main housing 2 is provided with a limit groove 7, the outer surfaces of the two limit plates 6 are arranged inside the limit groove 7, the top of the internal thread sleeve 5 is fixedly connected with a first shaft block 8, the inside of the first shaft block 8 is rotatably connected with a connecting rod 9, the end of the connecting rod 9 away from the first shaft block 8 is rotatably connected with a second shaft block 10, the tops of the two second shaft blocks 10 are fixedly connected with a rod sleeve 11, the limit plate 6 can only move along the opening direction of the limit groove 7. Because the two sides of the threaded rod 3 have opposite thread rotation directions, the moving directions of the two internal thread sleeves 5 are opposite.

[0026] As Figures 1 to 5 shown, through grooves 12 are provided on both sides of the main housing 2, the outer surface of the rod sleeve 11 is arranged inside the two through grooves 12, and the rod sleeve 11 can move inside the through grooves 12 provided in the main housing 2.

[0027] As Figures 1 to 5 shown, the inner surface of the rod sleeve 11 is rotatably connected with a power rod 13, one end of the power rod 13 is fixedly connected with an active cylinder 14, and the power rod 13 can move inside the rod sleeve 11.

[0028] As Figures 1 to 5As shown, a positioning rod 15 is fixedly connected to the top of the rod sleeve 11. A positioning sleeve 16 is movably sleeved on the outer surface of the positioning rod 15, and a spring 17 is movably sleeved on the outer surface of the positioning rod 15. By compressing the spring 17 between the compression active cylinder 14 and the driven sleeve 19, the sand belt 20 can be sleeved on its outer surface.

[0029] As Figures 1 to 5 shown, the bottom of the spring 17 is fixedly connected to the top of the rod sleeve 11, and the top of the spring 17 is fixedly connected to the bottom of the positioning sleeve 16. Under the elastic action of the spring 17, the positioning sleeve 16 will be away from the positioning rod 15, so that the sand belt 20 can be tensioned.

[0030] As Figures 1 to 5 shown, an extension rod 18 is fixedly connected to the side of the positioning sleeve 16 away from the main housing 2. A driven sleeve 19 is rotatably connected to the outer surface of the extension rod 18, and the driven sleeve 19 will rotate on the outer surface of the extension rod 18.

[0031] As Figures 1 to 5 shown, a sand belt 20 is drivingly connected to the outer surface of the driven sleeve 19. The inner surface of the sand belt 20 on the side away from the driven sleeve 19 is drivingly connected to the outer surface of the active cylinder 14. Then, under the driving action of the sand belt 20, the driven sleeve 19 will rotate on the outer surface of the extension rod 18.

[0032] As Figures 1 to 5 shown, fixing rods 21 are fixedly connected to both sides of the rod sleeve 11. A motor 22 is fixedly connected to the inner sides of the two fixing rods 21. The output end of the motor 22 is fixedly connected to the end of the power rod 13 away from the active cylinder 14. The motor 22 is fixed to one side of the rod sleeve 11 through the fixing rod 21.

[0033] Working principle: First, place the part to be polished above the bearing plate 1, and then compress the spring 17 between the active cylinder 14 and the driven sleeve 19, so that the abrasive belt 20 can be sleeved on its outer surface. According to the thickness of the part, rotate the threaded rod 3 through the rocker 4, and the rotating thread will drive the internally threaded sleeve 5. The limit plate 6 can only move along the slotting direction of the limit slot 7. Since the thread rotation directions on both sides of the threaded rod 3 are opposite, the moving directions of the two internally threaded sleeves 5 are opposite. When the two internally threaded sleeves 5 move away from each other at the same time, one end of the connecting rod 9 will be driven by the first shaft block 8, and the other end of the connecting rod 9 will push the rod sleeve 11 through the second shaft block 10, so that the rod sleeve 11 moves inside the through slot 12 opened in the main housing 2. At this time, the distance between the active cylinder 14 and the bearing plate 1 can be adjusted. Then, turn on the external power supply of the motor 22. The model of the motor 22 is: DOY106, rated power: 750W. The motor 22 is fixed on one side of the rod sleeve 11 through the fixed rod 21. After the motor 22 is powered on, it will drive the power rod 13 and the active cylinder 14 to rotate. Under the elastic action of the spring 17, the positioning sleeve 16 will be away from the positioning rod 15, so that the abrasive belt 20 can be tensioned. Then, under the driving action of the abrasive belt 20, the driven sleeve 19 will rotate on the outer surface of the extension rod 18, and the abrasive belt 20 will also perform a driving movement. At this time, push the part to polish and grind it.

[0034] The above is only the preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A belt polishing machine, comprising a pressure plate (1), characterized in that: The top of the pressure plate (1) is fixedly connected to a main housing (2); a threaded rod (3) is rotatably connected inside the main housing (2) and extends out at one end; the extended end of the threaded rod (3) is fixedly connected to a rocker (4); the threads on both sides of the threaded rod (3) rotate in opposite directions; the outer surface of the threaded rod (3) is threadedly connected to two internal threaded sleeves (5); the bottom of the internal threaded sleeve (5) is fixedly connected to a limiting plate (6); a limiting groove (7) is provided at the bottom of the inner surface of the main housing (2); the outer surfaces of the two limiting plates (6) are arranged inside the limiting groove (7); the top of the internal threaded sleeve (5) is fixedly connected to a first shaft block (8); the inside of the first shaft block (8) is rotatably connected to a connecting rod (9); the end of the connecting rod (9) away from the first shaft block (8) is rotatably connected to a second shaft block (10); the tops of the two second shaft blocks (10) are fixedly connected to a rod sleeve (11).

2. The abrasive belt polisher according to claim 1, characterized in that: Through slots (12) are provided on both sides of the main housing (2), and the outer surface of the rod sleeve (11) is arranged inside the two through slots (12).

3. A belt polishing machine according to claim 2, characterized in that: The inner surface of the rod sleeve (11) is rotatably connected to a power rod (13), and one end of the power rod (13) is fixedly connected to a driving cylinder (14).

4. A belt polishing machine according to claim 3, characterized in that: The top of the rod sleeve (11) is fixedly connected to a positioning rod (15), the outer surface of the positioning rod (15) is movably sleeved with a positioning sleeve (16), and the outer surface of the positioning rod (15) is movably sleeved with a spring (17).

5. The abrasive belt polishing machine according to claim 4, characterized in that: The bottom of the spring (17) is fixedly connected to the top of the rod sleeve (11), and the top of the spring (17) is fixedly connected to the bottom of the positioning sleeve (16).

6. The abrasive belt polisher according to claim 5, characterized in that: A side of the positioning sleeve (16) away from the main housing (2) is fixedly connected to an extension rod (18), and an outer surface of the extension rod (18) is rotatably connected to a driven sleeve (19).

7. The abrasive belt polisher according to claim 6, characterized in that: The outer surface of the driven sleeve (19) is drivingly connected to a sanding belt (20), and the inner surface of the sanding belt (20) at a side away from the driven sleeve (19) is drivingly connected to the outer surface of the driving cylinder (14).

8. The abrasive belt polisher according to claim 5, characterized in that: Fixed rods (21) are fixedly connected to both sides of the rod sleeve (11), a motor (22) is fixedly connected to the inner sides of the two fixed rods (21), and an output end of the motor (22) is fixedly connected to an end of the power rod (13) away from the driving cylinder (14).

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