A polishing apparatus

Abstract

A polishing device, comprising a base, further comprising a transmission assembly arranged on the base, a sand belt wrapped around the transmission assembly, and a first driving device for driving the transmission assembly to drive the sand belt to move; the base is further provided with a supporting device, the supporting device comprising a supporting table and a second driving device, the second driving device drives the supporting table to move relative to the base to support the inside of the sand belt, so that the sand belt will not deform or deviate due to uneven stress during operation, ensuring the stability of the sanding process and improving the polishing precision of the sand belt; and the supporting table is provided with a V-shaped supporting surface, so that the part of the sand belt supported by the V-shaped supporting surface is V-shaped, which can more naturally guide the plate to form an R angle without additional processing steps or complex operations, greatly improving the production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of grinding and polishing technology, and in particular to a polishing device. Background Technology

[0002] Existing polishing equipment often suffers from poor sanding results and precision when processing the radius (R) corners of sheet metal, resulting in either excessive or insufficient sanding at the front edge. This affects the appearance and dimensional accuracy of the product, making quality control difficult. Furthermore, belt polishing equipment is prone to belt wheel wear and deformation during use, impacting polishing effectiveness and necessitating frequent replacements, increasing production costs and reducing efficiency. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a polishing device that solves the problem of how to improve the sanding effect and accuracy of the R-angle of the plate in existing belt polishing equipment.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A polishing apparatus includes a base, a transmission assembly disposed on the base, an abrasive belt wrapped around the transmission assembly, and a first drive device for driving the transmission assembly to drive the abrasive belt to move; the base is also provided with a support device, the support device including a support platform and a second drive device, the second drive device driving the support platform to move relative to the base to support the inner side of the abrasive belt, and the support platform is provided with a V-shaped support surface, such that the portion of the abrasive belt supported by the V-shaped support surface is V-shaped.

[0006] Furthermore, the transmission assembly includes a driving wheel, a first driven wheel, and a second driven wheel arranged in a triangular structure, wherein the driving wheel is used to drive the sanding belt to move, and the support platform is located between the first driven wheel and the second driven wheel.

[0007] Furthermore, the first driven wheel and the second driven wheel are provided with V-shaped guide grooves that are adapted to the V-shaped support surface.

[0008] Furthermore, the drive wheel is equipped with limit positions at both the upper and lower ends to prevent the sand belt from slipping out of the drive wheel.

[0009] Furthermore, the support device also includes a first guide rail, and the support platform is slidably connected to the first guide rail.

[0010] Furthermore, the support device also includes a limiting rod, the support platform is movably connected to the limiting rod, and the limiting rod is provided with a first limiting structure and a second limiting structure to restrict the movement of the support platform between the first limiting structure and the second limiting structure.

[0011] Furthermore, the support platform includes a support body and a connecting plate connected to the support body. The support body has a V-shaped support surface. The connecting plate is movably connected to the limiting rod. A second driving device is connected to the connecting plate. The space between the connecting plate and the support body is used to allow the limiting rod to move. The first limiting structure and the second limiting structure are located on both sides of the connecting plate, respectively.

[0012] Furthermore, the base is provided with a movable groove, and the first driven wheel is installed in the movable groove. The first driven wheel is connected to a third drive device, which is used to drive the first driven wheel to move in the movable groove to adjust the tension of the sanding belt.

[0013] Furthermore, the output end of the third drive device is provided with a slider, the bottom of the base is provided with a second guide rail, the slider is slidably connected to the second guide rail, and the slider is connected to the shaft of the first driven wheel.

[0014] The beneficial effects of this utility model are:

[0015] 1. The present invention proposes a polishing device, wherein the base is provided with a support device, the support device includes a support belt and a second driving device, the second driving device drives the support platform to move relative to the base to support the inner side of the sanding belt, which can provide uniform support force to the sanding belt, ensure that the sanding belt will not deform or shift due to uneven force during operation, ensure the stability of the sanding process, and improve the polishing accuracy of the sanding belt.

[0016] 2. The polishing device proposed in this utility model has a support table with a V-shaped support surface. The part of the abrasive belt supported by the V-shaped support surface is V-shaped. Compared with the traditional support table with a flat contact surface, the V-shaped support surface can guide the plate to form an R-angle more naturally, without the need for additional processing steps or complicated operations, which greatly improves production efficiency.

[0017] 3. The polishing device proposed in this utility model includes a transmission component comprising a driving wheel, a first driven wheel, and a second driven wheel arranged in a triangular structure. The three wheels form a stable triangular support, and the sanding belt can be kept on a predetermined track during operation, avoiding deviation of the sanding belt due to improper wheel position.

[0018] 4. The polishing device proposed in this utility model has a first driven wheel and a second driven wheel with V-shaped guide grooves adapted to the V-shaped support surface. When the sanding belt passes through the first driven wheel and the second driven wheel, it is pre-bent into the shape required for the R-angle of the processed plate under the action of the V-shaped guide grooves.

[0019] 5. The polishing device proposed in this utility model includes a limiting rod as the supporting device. The supporting platform is movably connected to the limiting rod, and the limiting rod is provided with a first limiting structure and a second limiting structure to restrict the movement of the supporting platform between the first limiting structure and the second limiting structure. The second driving device can adjust the position of the supporting platform relative to the base through the limiting rod, thereby adjusting the force of the supporting platform supporting the sanding belt to ensure that the sanding belt can fit the R-angle of the plate and improve the sanding accuracy and effect.

[0020] 6. The polishing device proposed in this utility model has a first driven wheel connected to a third driving device. The third driving device is used to drive the first driven wheel to move in the movable groove to adjust the tension of the sanding belt, ensure sufficient friction between the sanding belt and the driving wheel, prevent the sanding belt from slipping, and improve the transmission stability. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is one of the schematic diagrams of a polishing device according to the present invention;

[0023] Figure 2 This is a second schematic diagram of a polishing device according to the present invention;

[0024] Figure 3 This is the third schematic diagram of a polishing device according to the present invention;

[0025] Figure 4 for Figure 3 Enlarged view of section A;

[0026] Figure 5 This is a schematic diagram of the support body of a polishing device according to the present invention;

[0027] Figure 6 This is a schematic diagram of the first driven wheel and the third driving device of a polishing device according to the present invention.

[0028] In the diagram, 10 is the base; 101 is the movable groove; 20 is the transmission assembly; 201 is the driving wheel; 2011 is the limiting position; 202 is the first driven wheel; 203 is the second driven wheel; 30 is the sanding belt; 40 is the support device; 401 is the support platform; 4011 is the support body; 4012 is the connecting plate; 402 is the second driving device; 403 is the limiting rod; 4031 is the first limiting structure; 4032 is the second limiting structure; 501 is the first guide rail; 502 is the second guide rail; 601 is the V-shaped support surface; 602 is the V-shaped guide groove; 701 is the third driving device; and 702 is the slider. Detailed Implementation

[0029] The following is combined Figures 1 to 6 This utility model will be described in detail.

[0030] A polishing apparatus includes a base 10, a transmission assembly 20 disposed on the base 10, an abrasive belt 30 wrapped around the transmission assembly 20, and a first driving device (not shown in the figure) that drives the transmission assembly 20 to move the abrasive belt 30. The base 10 is also provided with a support device 40, which includes a support platform 401 and a second driving device 402. The second driving device 402 drives the support platform 401 to move relative to the base 10 to support the inner side of the abrasive belt 30, providing uniform support force to the abrasive belt 30 and ensuring that the abrasive belt 30 will not deform or shift due to uneven force during operation, thus ensuring the stability of the sanding process and improving the polishing accuracy of the abrasive belt 30. Furthermore, the support platform 401 is provided with a V-shaped support surface 601, so that the part of the abrasive belt 30 supported by the V-shaped support surface 601 is V-shaped. Compared with the traditional support platform 401 with a flat contact surface, the V-shaped support surface 601 can more naturally guide the plate to form an R-angle, without additional processing steps or complex operations, greatly improving production efficiency.

[0031] In this embodiment, the transmission assembly 20 includes a driving wheel 201, a first driven wheel 202, and a second driven wheel 203 arranged in a triangular structure. The three wheels form a stable triangular support, which enables the sanding belt 30 to stay on the predetermined track during operation, avoiding deviation of the sanding belt 30 due to improper wheel position. The driving wheel 201 is used to drive the sanding belt 30 to move, and the support platform 401 is located between the first driven wheel 202 and the second driven wheel 203.

[0032] Specifically, the drive wheel 201 has limiting positions 2011 at both its upper and lower ends. The limiting positions 2011 can prevent the sanding belt 30 from slipping out of the drive wheel 201. The limiting positions 2011 are annular structures and are wider than the wheel body of the drive wheel 201. This can effectively restrict the sanding belt 30 within the wheel body, preventing uneven sanding caused by the sanding belt 30 deviating or loosening, and ensuring sanding accuracy.

[0033] In this embodiment, the first driven wheel 202 and the second driving wheel are provided with V-shaped guide grooves 602 that are adapted to the V-shaped support surface 601. When the sanding belt 30 passes through the first driven wheel 202 and the second driven wheel 203, it is pre-bent into the shape required for processing the R-angle of the plate under the action of the V-shaped guide grooves 602.

[0034] In this embodiment, the support device 40 further includes a first guide rail 501, and the support platform 401 is slidably connected to the first guide rail 501. The first guide rail 501 provides a precise movement path for the support platform 401, ensuring that it moves smoothly and accurately in a predetermined direction.

[0035] Furthermore, the support device 40 also includes a limiting rod 403, the support platform 401 is movably connected to the limiting rod 403, and the limiting rod 403 is provided with a first limiting structure 4031 and a second limiting structure 4032 to restrict the movement of the support platform 401 between the first limiting structure 4031 and the second limiting structure 4032.

[0036] Specifically, the support platform 401 includes a support body 4011 and a connecting plate 4012 connected to the support body 4011. The support body 4011 has a V-shaped support surface 601. The connecting plate 4012 is movably connected to a limiting rod 403. A second driving device 402 is connected to the connecting plate 4012. The space between the connecting plate 4012 and the support body 4011 is used to allow the limiting rod 403 to move. A first limiting structure 4031 and a second limiting structure 4032 are located on both sides of the connecting plate 4012. The second driving device 402 can adjust the position of the support platform 401 relative to the base 10 through the first limiting structure 4031 and the second limiting structure 4032, thereby adjusting the force of the support platform 401 supporting the sanding belt 30, ensuring that the sanding belt 30 can fit the R-angle of the plate, and improving the sanding accuracy and effect.

[0037] Preferably, the first limiting structure 4031 is a limiting screw, and the second limiting structure 4032 is a limiting screw. The limiting screw and the limiting screw can precisely control the displacement range of the second driving device 402, ensuring that the position adjustment of the support table 401 is always within the accuracy range and that the sanding belt 30 polishing mechanism can be adapted to various types of plates.

[0038] In this embodiment, the base 10 is provided with a movable groove 101, and a first driven wheel 202 is installed in the movable groove 101. The first driven wheel 202 is connected to a third driving device 701. The third driving device 701 is used to drive the first driven wheel 202 to move within the movable groove 101 to adjust the tension of the sanding belt 30, ensuring sufficient friction between the sanding belt 30 and the driving wheel 201, preventing the sanding belt 30 from slipping, and improving transmission stability. Furthermore, the output end of the third driving device 701 is provided with a slider 702, and the bottom of the base 10 is provided with a second guide rail 502. The slider 702 is slidably connected to the second guide rail 502, and the slider 702 is connected to the shaft of the first driven wheel 202.

[0039] The principle of the third drive device 701 driving the first driven wheel 202 to move within the movable groove 101 to adjust the tension of the sanding belt 30 is as follows: When the third drive device 701 is activated, when the slider 702 moves along the second guide rail 502 toward the end of the movable groove 101 closer to the interior of the base 10, the slider 702 drives the first driven wheel 202 to move simultaneously toward the end of the movable groove 101 closer to the interior of the base 10, thus loosening the sanding belt 30; when the slider 702 moves along the second guide rail 502 toward the end of the movable groove 101 away from the interior of the base 10, the slider 702 drives the first driven wheel 202 to move simultaneously toward the end of the movable groove 101 away from the interior of the base 10, thus tightening the sanding belt 30.

[0040] The abrasive belt 30 is made of a blended fabric and nylon fiber material, possessing good strength, flexibility, and fatigue resistance. It maintains good elasticity and adaptability during grinding, allowing the belt to easily pre-bend and maintain its shape when passing through the first guide groove. The abrasive material on the belt 30 is either alumina or silicon carbide, with the abrasive density adjusted according to the sanding requirements.

[0041] The first drive device, the second drive device 402, and the third drive device 701 are cylinders or hydraulic cylinders. In other embodiments, they can also be electric motors.

[0042] The working principle of the polishing device proposed in this embodiment is as follows: The first driving device is activated, causing the transmission component 20 to drive the sanding belt 30 wrapped around it to rotate. During the movement, the sanding belt 30 is pre-bent by passing through the V-shaped guide groove 602 provided on the transmission component 20. Then, the second driving device 402 is activated, driving the support platform 401 to move to the required position, so that the sanding belt 30 can fit the V-shaped support surface 601. Next, the third driving device 701 is activated, driving the first driven wheel 202 to move towards or away from the end of the movable groove 101 from the inside of the base 10, thereby adjusting the tension of the sanding belt 30. Then, the plate material whose R-angle needs to be polished is placed in the V-shaped guide groove 602, thus achieving R-angle polishing.

[0043] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A polishing apparatus comprising a base, characterized by, It also includes a transmission assembly disposed on the base, an abrasive belt wrapped around the transmission assembly, and a first driving device for driving the transmission assembly to drive the abrasive belt to move; the base is also provided with a support device, the support device including a support platform and a second driving device, the second driving device driving the support platform to move relative to the base to support the inner side of the abrasive belt, and the support platform is provided with a V-shaped support surface, so that the portion of the abrasive belt supported by the V-shaped support surface is V-shaped.

2. A polishing apparatus as claimed in claim 1, characterized in that The transmission assembly includes a driving wheel, a first driven wheel, and a second driven wheel arranged in a triangular structure, wherein the driving wheel is used to drive the sanding belt to move, and the support platform is disposed between the first driven wheel and the second driven wheel.

3. A polishing apparatus as claimed in claim 2, wherein The first driven wheel and the second driven wheel are provided with V-shaped guide grooves that are adapted to the V-shaped support surface.

4. A polishing apparatus as claimed in claim 2, wherein The drive wheel is provided with limiting positions at both the upper and lower ends, which can prevent the sanding belt from slipping out of the drive wheel.

5. A polishing apparatus as claimed in claim 2, wherein The support device further includes a first guide rail, and the support platform is slidably connected to the first guide rail.

6. A polishing apparatus as claimed in claim 5, wherein The support device further includes a limiting rod, the support platform is movably connected to the limiting rod, and the limiting rod is provided with a first limiting structure and a second limiting structure to restrict the movement of the support platform between the first limiting structure and the second limiting structure.

7. A polishing apparatus as claimed in claim 6, characterized in that The support platform includes a support body and a connecting plate connected to the support body. The support body has a V-shaped support surface. The connecting plate is movably connected to the limiting rod. The second driving device is connected to the connecting plate. The space between the connecting plate and the support body is used to allow the limiting rod to move. The first limiting structure and the second limiting structure are located on both sides of the connecting plate, respectively.

8. A polishing apparatus as claimed in claim 2, wherein The base is provided with a movable groove, and the first driven wheel is installed in the movable groove. The first driven wheel is connected to a third driving device, which is used to drive the first driven wheel to move in the movable groove to adjust the tension of the sanding belt.

9. A polishing apparatus as described in claim 8, characterized in that, The output end of the third driving device is provided with a slider, the bottom of the base is provided with a second guide rail, the slider is slidably connected to the second guide rail, and the slider is connected to the shaft of the first driven wheel.

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