A sand belt polishing disc

Abstract

The utility model relates to an abrasive belt polishing disc; it comprises a fixed disc and a rotating disc rotatably mounted on the fixed disc, a through hole for a workpiece to pass through is arranged at the center of the fixed disc; two groups of driving components with the same structure and opposite installation directions are arranged on the rotating disc, and each group of driving components is sleeved with an abrasive belt; the two abrasive belts are provided with a grinding slit connected to the through hole; when the rotating disc rotates, the abrasive belts on the two driving components are synchronously driven to move in opposite directions. Since the two abrasive belts move in opposite directions, when grinding the workpiece, the friction forces generated on the workpiece surface are also in opposite directions; thereby ensuring the stability of the workpiece during the grinding process and avoiding the phenomenon of displacement of the workpiece during the grinding process by the two abrasive belts.

Description

Technical Field

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

[0002] The abrasive belt polisher is different from the single-head manual polisher. The multi-head automatic polisher adopts a processing method in which the two working ends are fixed, the polishing mechanism moves along the center line of the workpiece, and the abrasive belt moves in contact with the surface of the workpiece.

[0003] Polishing the outer surface of a round tube is generally performed using a sanding machine, which includes a conveying mechanism and a polishing mechanism. The polishing mechanism includes a sanding turntable and a sanding belt connected to the sanding turntable. There are generally two sanding belts that are spaced apart. The two sanding belts rotate at high speed driven by a pulley, and the sanding turntable is also rotating. When the round tube passes between the two sanding belts through the conveying mechanism, the two sanding belts can fully polish the outer surface of the round tube. In the prior art, the two sanding belts and the sanding turntable are synchronously driven to rotate together by a planetary gear set, and the two sanding belts driven by the planetary gear rotate together with the sanding turntable, and the two sanding belts move in the same direction at the same time. As a result, the workpiece will move in one direction during the grinding process, thereby reducing the grinding quality. Utility Model Content

[0004] The utility model aims to provide a sand belt polishing disc to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a sanding belt polishing disk; it includes a fixed disk and a rotating disk rotatably installed on the fixed disk, and a through hole for the workpiece to pass through is arranged at the center of the fixed disk; two groups of drive components with the same structure and opposite installation directions are arranged on the rotating disk, and each group of drive components is provided with a sanding belt; the two sanding belts are provided with grinding gaps that are connected to the through hole; when the rotating disk rotates, the sanding belts on the two drive components are synchronously driven to move in opposite directions.

[0006] Compared with the prior art, since the moving directions of the two sanding belts are opposite, the directions of the friction forces generated on the workpiece surface when grinding the workpiece are also opposite; thereby ensuring the stability of the workpiece during the grinding process and avoiding the phenomenon of displacement of the workpiece during the grinding process by the two sanding belts.

[0007] As an improvement of the abrasive belt polishing disc of the utility model, a fixed shaft is provided in the middle of the fixed disc, a circular installation chamber is provided between the fixed shaft and the fixed disc, an insertion hole is provided in the fixed shaft, a connecting shaft is provided on the rotating disc, a connecting hole is provided in the connecting shaft, an end of the fixed shaft passes through the connecting hole and is flush with the end surface of the rotating disc; the fixed shaft is rotatably installed in the connecting hole.

[0008] As an improvement of the abrasive belt polishing disc of the utility model, a pressure plate is arranged in the installation chamber, and the pressure plate is fixedly installed on the bottom surface of the installation chamber by fasteners; a synchronous belt is arranged between the pressure plate and the side wall of the installation chamber, and gear teeth matching the synchronous belt are arranged on the outer circumference of the pressure plate.

[0009] Compared with the existing technology, the synchronous belt is set to make the transmission ratio accurate, realize synchronous transmission without slip difference, and obtain high precision. At the same time, the transmission efficiency is high and the energy saving effect is good. Due to the synchronous transmission without slip, the structure is also relatively compact and does not require a lot of tension. Maintenance is simple.

[0010] As an improvement of the abrasive belt polishing disc of the utility model, a base and a fixed disc fixed on the base by fasteners are provided, a rotating disc is provided on the fixed disc, and an insertion hole for the workpiece to pass through is provided at the center of the fixed disc; when in use, one end of the pipe is inserted from the insertion hole so that it enters the grinding gap between the two abrasive belts; the abrasive belts on the two driving components grind the pipe.

[0011] As an improvement of the abrasive belt polishing disc of the utility model, the driving assembly includes a driving wheel and a driven wheel arranged on the rotating disc, the driving wheel and the driven wheel are symmetrically arranged on the rotating disc and located on the left and right sides of the interlaced hole; the abrasive belt is sleeved on the driving wheel and the driven wheel.

[0012] As an improvement of the abrasive belt polishing disk of the utility model, a tensioning assembly is further arranged between the driving wheel and the driven wheel, and the tensioning assembly is located above the insertion hole; the tensioning assembly includes a swing angle seat arranged on the rotating disk, a tensioning rod is rotatably arranged on the swing angle seat, a tensioning wheel is arranged on one end of the tensioning rod, the tensioning wheel is located between the swing angle seat and the driven wheel and abuts against the abrasive belt; an elastic element is arranged at the other end of the tensioning rod, one end of the elastic element is connected to the tensioning rod, and the other end is connected to the rotating disk.

[0013] As an improvement of the abrasive belt polishing disc of the utility model, a fixing plate is fixedly installed on the rotating disc, a strip hole is provided on the fixing plate, a mounting hole of the same shape as the strip hole is provided on the rotating disc, and a fixing nut abutting against the driven wheel is provided in the mounting hole.

[0014] As an improvement of the abrasive belt polishing disc of the utility model, a limiting column adapted to the strip-shaped hole is arranged on the fixing nut, and the limiting column is inserted into the strip-shaped hole.

[0015] As an improvement of the sand belt polishing disc of the utility model, a connecting shaft is provided on the driving wheel, and the connecting shaft is rotatably connected with the rotating disc; one end of the connecting shaft passes through the rotating disc and is fixedly installed with a driving wheel, and the driving wheel is meshed and connected with the synchronous belt in the fixed disc; the driving wheel and the driving wheel are located on both sides of the rotating disc.

[0016] As an improvement of the abrasive belt polishing disc of the utility model, a base for installing a fixed plate is also provided, a driving motor is fixedly installed on the base, a belt groove is provided on the outer circumference of the rotating disc, a V-belt is provided in the belt groove, the output end of the driving motor is connected to the V-belt, and the driving motor is located directly below the fixed disc.

[0017] In addition to the technical problems solved by the present invention, the technical features that constitute the technical solution, and the advantages brought by the technical features of the technical solution described above, other technical problems that can be solved by the present invention, other technical features included in the technical solution, and the advantages brought by these technical features will be further described in detail in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional view of the utility model.

[0019] Figure 2 It is a schematic diagram of the fixed disk and the rotating disk of the utility model being opened.

[0020] Figure 3 It is an exploded stereoscopic view of the utility model.

[0021] Explanation of the accompanying figures: 01. Base, 02. Fixed disk, 03. Rotating disk, 04. Interlaced hole, 05. Abrasive belt, 06. Driving wheel, 07. Driven wheel, 08. Swing angle seat, 09. Tensioning rod, 10. Tensioning wheel, 11. Elastic element, 12. Fixed plate, 13. Strip hole, 14. Mounting hole, 15. Fixing nut, 16. Limiting column, 17. Connecting shaft, 18. Driving wheel, 19. Fixed shaft, 20. Mounting chamber, 21. Connecting hole, 22. Pressing plate, 23. Synchronous belt, 24. Belt groove, 25. Driving motor, 26. Mounting shaft. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] like Figure 1-3 As shown, the abrasive belt polishing disc of the utility model comprises a base 01 and a fixed disc 02 fixedly mounted on the base 01 by fasteners, a rotating disc 03 is arranged on the fixed disc 02, and a through hole 04 for the workpiece to pass through is arranged at the center of the fixed disc 02. Two groups of drive assemblies with the same structure and opposite installation directions are arranged on the rotating disc 03, and each group of drive assemblies is sleeved with an abrasive belt 05. The two abrasive belts 05 are provided with a grinding gap connected to the through hole 04. When in use, one end of the workpiece is inserted from the through hole 04 so that it enters the grinding gap between the two abrasive belts 05. The abrasive belts 05 on the two drive assemblies grind the workpiece.

[0024] The driving assembly includes a driving wheel 06 and a driven wheel 07 arranged on the rotating disk 03. The driving wheel 06 and the driven wheel 07 are arranged symmetrically on the rotating disk 03 and are located on the left and right sides of the insertion hole 04. The sanding belt 05 is sleeved on the driving wheel 06 and the driven wheel 07. When the driving wheel 06 starts to rotate, the sanding belt 05 is driven to move. The movement of the sanding belt 05 can grind the workpiece.

[0025] To ensure the tension of the sanding belt 05 during movement. A tensioning assembly is provided between the driving wheel 06 and the driven wheel 07, and the tensioning assembly is located above the insertion hole 04. The tensioning assembly includes a swing angle seat 08 provided on the rotating disk 03, and a tensioning rod 09 is rotatably provided on the swing angle seat 08. A tensioning wheel 10 is provided on one end of the tensioning rod 09, and the tensioning wheel 10 is located between the swing angle seat 08 and the driven wheel 07 and abuts against the sanding belt 05. An elastic element 11 is provided at the other end of the tensioning rod 09, and one end of the elastic element 11 is connected to the tensioning rod 09, and the other end is connected to the rotating disk 03. When the elastic element 11 is in the retracted state, the tensioning rod 09 rotates, so that the tensioning wheel 10 moves toward the outer circumference direction of the rotating disk 03 to tension the sanding belt 05. The elastic element 11 drives the movement of the tensioning wheel 10 to achieve the tensioning of the sanding belt 05.

[0026] A fixing plate 12 is fixedly mounted on the rotating disk 03 by fasteners, and a strip hole 13 is provided on the fixing plate 12. A mounting hole 14 of the same shape as the strip hole 13 is provided on the rotating disk 03, and a fixing nut 15 is provided in the mounting hole 14 to abut against the driven wheel 07. A limiting column 16 adapted to the strip hole 13 is provided on the fixing nut 15, and the limiting column 16 is inserted in the strip hole 13. During the assembly process, the fastener is passed through the driven wheel 07 and threadedly connected with the fixing nut 15. The driven wheel 07 is fixed on the fixing plate 12, and the fixing nut 15 is located in the rotating disk 03 through the design of the mounting hole 14 to avoid interference between the fixing nut 15 and the fixed disk 02. A limiting column 16 is provided on the fixing nut 15 and a strip hole 13 is provided on the fixing plate 12. When the slave gear is fixed by a fastener, the limiting column 16 is inserted into the strip hole 13 to prevent the fixing nut 15 from rotating in the mounting hole 14, thereby achieving fixation.

[0027] A connecting shaft 17 is provided on the driving wheel 06, and the connecting shaft 17 is rotatably connected to the rotating disk 03 via a bearing. One end of the connecting shaft 17 passes through the rotating disk 03 and is fixedly mounted with a driving wheel 18, which is meshed and connected with a synchronous belt 23 in the fixed disk 02. The driving wheel 18 and the driving wheel 06 are located on both sides of the rotating disk 03. When a rotational force is applied to the driving wheel 18, the driving wheel 06 rotates, thereby driving the movement of the sanding belt 05.

[0028] A fixed shaft 19 is provided in the middle of the fixed disk 02, a circular installation chamber 20 is provided between the fixed shaft 19 and the fixed disk 02, the insertion hole 04 is provided in the fixed shaft 19, a mounting shaft 17 is provided on the rotating disk 03, a connecting hole 21 is provided in the connecting shaft 17, and the end of the fixed shaft 19 passes through the connecting hole 21 and is flush with the end surface of the rotating disk 03. The fixed shaft 19 is rotatably installed in the connecting hole 21 through a bearing. The rotating disk 03 and the fixed disk 02 are rotatably connected by the cooperation of the fixed shaft 19 and the connecting shaft 17. Due to the setting of the installation chamber 20, when the fixed disk 02 and the rotating disk 03 are combined, the driving wheel 18 is located in the installation chamber 20.

[0029] A pressing plate 22 is provided in the installation chamber 20, and the pressing plate 22 is fixedly installed on the bottom surface of the installation chamber 20 by fasteners. A synchronous belt 23 is provided between the pressing plate 22 and the side wall of the installation chamber 20, and the driving wheel 18 is meshedly connected with the synchronous belt 23 and is located between the synchronous belt 23 and the fixed shaft 19. Gear teeth adapted to the synchronous belt 23 are provided on the outer circumference of the pressing plate 22, and the synchronous belt 23 is fixed in the installation chamber 20 by the pressing plate 22 and kept in a circular state, and the synchronous belt 23 is fixed in the installation chamber 20 by the provision of the gear teeth and prevented from rotating in the installation chamber 20.

[0030] When the utility model is in use, since the installation directions of the two drive components on the rotating disk 03 are opposite, when the rotating disk 03 is combined with the fixed disk 02, the driving wheel 06 on one of the drive components is located on one side of the interlaced hole 04, and the driving wheel 06 on the other drive component is located on the opposite side of the interlaced hole 04. Since the two drive wheels 18 are meshed and connected with the synchronous belt 23 in the fixed disk 02 and are located between the synchronous belt 23 and the fixed shaft 19. When the rotating disk 03 rotates clockwise, the rotation direction of one of the drive wheels 18 is the same as the rotation direction of the rotating disk 03, and the rotation direction of the other drive wheel 18 is opposite to the rotation direction of the rotating disk 03. The synchronous belt 23 in the fixed disk 02 drives the two drive wheels 18 to rotate in opposite directions at the same time, thereby causing the sand belts 05 on the two drive components to move in opposite directions. Since the moving directions of the two sand belts 05 are opposite, when grinding the workpiece, the friction force generated on the surface of the workpiece is also opposite. Thereby ensuring the stability of the workpiece during the grinding process, avoiding the phenomenon of displacement of the workpiece during the grinding process of the two sand belts 05.

[0031] A belt groove 24 is provided on the outer circumference of the rotating disk 03 , a V-belt is provided in the belt groove 24 , a driving motor 25 is provided on the base 01 , an output end of the driving motor 25 is connected to the V-belt transmission, and the driving motor 25 is located directly below the fixed disk 02 .

[0032] It should be noted that, for the sake of clear description, the fastener described in the present application is any one of a screw, a bolt, and a screw, and the elastic element 11 described in the present application is any one of a coil spring and a gas spring.

[0033] If the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0034] The above implementation modes are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A belt polishing disc, characterized in that: It includes a fixed disk and a rotating disk rotatably mounted on the fixed disk, wherein a through hole for the workpiece to pass through is arranged at the center of the fixed disk; two groups of driving components with the same structure and opposite installation directions are arranged on the rotating disk, and each group of driving components is provided with a sanding belt; the two sanding belts are provided with a grinding gap that is connected to the through hole; when the rotating disk rotates, the sanding belts on the two driving components are synchronously driven to move in opposite directions.

2. The abrasive belt polishing disc according to claim 1, characterized in that: A fixed shaft is arranged in the middle of the fixed disk, a circular installation chamber is arranged between the fixed shaft and the fixed disk, an insertion hole is arranged in the fixed shaft, a connecting shaft is arranged on the rotating disk, a connecting hole is arranged in the connecting shaft, an end of the fixed shaft passes through the connecting hole and is flush with the end surface of the rotating disk; the fixed shaft is rotatably installed in the connecting hole.

3. The abrasive belt polishing disc according to claim 2, characterized in that: A pressure plate is arranged in the installation chamber, and the pressure plate is fixedly installed on the bottom surface of the installation chamber by fasteners; a synchronous belt is arranged between the pressure plate and the side wall of the installation chamber, and gear teeth matching the synchronous belt are arranged on the outer circumference of the pressure plate.

4. The abrasive belt polishing disc according to claim 3, characterized in that: A base and a fixed disk fixed on the base by fasteners, a rotating disk is arranged on the fixed disk, and an insertion hole for the workpiece to pass through is arranged at the center of the fixed disk; when in use, one end of the pipe is inserted from the insertion hole to enter the grinding gap between the two grinding belts; the grinding belts on the two driving components grind the pipe.

5. The abrasive belt polishing disc according to claim 1, characterized in that: The driving assembly comprises a driving wheel and a driven wheel arranged on the rotating disk, the driving wheel and the driven wheel are arranged symmetrically on the rotating disk and located on the left and right sides of the interlaced hole; the sanding belt is sleeved on the driving wheel and the driven wheel.

6. The abrasive belt polishing disc according to claim 5, characterized in that: A tensioning assembly is also provided between the driving wheel and the driven wheel, and the tensioning assembly is located above the insertion hole; the tensioning assembly includes a swing angle seat provided on the rotating disk, a tensioning rod is rotatably provided on the swing angle seat, a tensioning wheel is provided on one end of the tensioning rod, the tensioning wheel is located between the swing angle seat and the driven wheel and abuts against the sanding belt; an elastic element is provided at the other end of the tensioning rod, one end of the elastic element is connected to the tensioning rod, and the other end is connected to the rotating disk.

7. The abrasive belt polishing disc according to claim 6, characterized in that: A fixing plate is fixedly mounted on the rotating disk, a strip hole is arranged on the fixing plate, a mounting hole with the same shape as the strip hole is arranged on the rotating disk, and a fixing nut abutting against the driven wheel is arranged in the mounting hole.

8. The abrasive belt polishing disc according to claim 7, characterized in that: A limiting column adapted to the strip hole is arranged on the fixing nut, and the limiting column is inserted into the strip hole.

9. The abrasive belt polishing disc according to claim 6, characterized in that: A connecting shaft is provided on the driving wheel, and the connecting shaft is rotatably connected with the rotating disk; one end of the connecting shaft passes through the rotating disk and is fixedly installed with a driving wheel, and the driving wheel is meshed and connected with a synchronous belt in the fixed disk; the driving wheel and the driving wheel are located on both sides of the rotating disk.

10. The abrasive belt polishing disc according to any one of claims 1 to 9, characterized in that: A base for installing a fixed plate is also provided, on which a driving motor is fixedly installed, a belt groove is provided on the outer circumference of the rotating disk, a V-belt is provided in the belt groove, the output end of the driving motor is connected to the V-belt, and the driving motor is located directly below the fixed disk.

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