Abrasive belt polishing assembly and polishing equipment

Abstract

The invention discloses an abrasive belt polishing assembly and polishing equipment, the abrasive belt polishing assembly comprises a support, a driving wheel, a driven wheel, a first pressing wheel, a second pressing wheel and an extension wheel which are rotatably arranged on the support, a first driving part is connected with the driving wheel, the maximum outer diameter of the driving wheel is D1, and the maximum outer diameter of the driven wheel is D2. The extension wheel is located on the side, away from the driven wheel, of the driving wheel, the maximum outer diameter of the extension wheel is D2, the abrasive belt is sequentially wound around the driving wheel, the first pressing wheel, the extension wheel, the second pressing wheel and the driven wheel, and the part, located between the first pressing wheel and the extension wheel, of the abrasive belt is a first polishing section. The part, located between the second pressing wheel and the extension wheel, of the abrasive belt is a second polishing section, the length of the first polishing section is L1, the length of the first polishing section is L2, D2 < D1, D1 < L1 and D1 < L2 are met, the abrasive belt polishing assembly can be suitable for workpieces with special-shaped curved surfaces, and therefore the universality of the abrasive belt polishing assembly is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of abrasive belt polishing, and particularly to an abrasive belt polishing assembly and a polishing device. Background Art

[0002] The polishing device includes polishing wheel polishing and abrasive belt polishing. For abrasive belt grinding and polishing, the abrasive belt is sleeved on two abrasive belt wheels, and one of the abrasive belt wheels rotates to drive the abrasive belt to move between the two abrasive belt wheels to achieve grinding and polishing. The existing abrasive belt polishing device directly drives one abrasive belt wheel to rotate through a reduction motor. When polishing the special-shaped curved surface of a workpiece, the abrasive belt cannot contact the special-shaped curved surface of the workpiece, resulting in the inability to polish the special-shaped curved surface of the workpiece and poor polishing quality of the workpiece. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides an abrasive belt polishing assembly capable of polishing the special-shaped curved surface of a workpiece.

[0004] The present invention further provides a polishing device having the above-mentioned abrasive belt polishing assembly.

[0005] The abrasive belt polishing assembly according to the first aspect embodiment of the present invention includes:

[0006] A bracket;

[0007] A driving wheel and a driven wheel, respectively rotatably provided at different positions of the bracket;

[0008] A first driving member, provided on the bracket and connected to the driving wheel, the first driving member being used to drive the driving wheel to rotate;

[0009] A first pressing wheel and a second pressing wheel, respectively rotatably provided at different positions of the bracket, the first pressing wheel being located on the outer peripheral side of the driving wheel, and the second pressing wheel being located on the side of the first pressing wheel away from the driving wheel, the maximum outer diameter of the driving wheel being D 1 ;

[0010] An extension wheel, rotatably provided on the bracket, and the extension wheel being located on the side of the driving wheel away from the driven wheel, the maximum outer diameter of the extension wheel being D 2 ;

[0011] An abrasive belt, sequentially wound around the driving wheel, the first pressing wheel, the extension wheel, the second pressing wheel, and the driven wheel. The part of the abrasive belt between the first pressing wheel and the extension wheel is the first polishing section, and the part of the abrasive belt between the second pressing wheel and the extension wheel is the second polishing section. The edges of the first polishing section and the second polishing section are respectively used to polish the workpiece, and the length of the first polishing section is L1 The length of the first polishing section is L 2 , satisfying: D 2 <D 1 , D 1 <L 1 , D 1 <L 2 .

[0012] The abrasive belt polishing assembly according to the embodiment of the first aspect of the present invention has at least the following beneficial effects:

[0013] When the abrasive belt polishing assembly works, the first driving member drives the driving wheel to rotate, and the driving wheel drives the abrasive belt to move so that the abrasive belt can polish the workpiece. By setting the first pressing wheel, the second pressing wheel and the extension wheel, since the maximum outer diameter of the extension wheel is smaller than the maximum outer diameter of the driving wheel, and the lengths of the first polishing section and the second polishing section are both greater than the maximum outer diameter of the driving wheel, the edge of the first polishing section or the edge of the second polishing section can contact any position of the special-shaped curved surface of the workpiece, which can avoid interference between the workpiece and the driving wheel or the driven wheel, so as to be applicable to workpieces with special-shaped curved surfaces, and can improve the versatility of the abrasive belt polishing assembly.

[0014] According to some embodiments of the present invention, the maximum outer diameter of the extension wheel is greater than or equal to 30 mm and less than or equal to 100 mm.

[0015] According to some embodiments of the present invention, the minimum distance between the first polishing section and the driving wheel is L 3 , satisfying: L 3 >D 1 .

[0016] According to some embodiments of the present invention, along the direction from the first pressing wheel to the extension wheel, the minimum distance between the first polishing section and the second polishing section gradually decreases.

[0017] According to some embodiments of the present invention, the abrasive belt polishing assembly is provided with an adjusting structure, and the adjusting structure is used to adjust the distance between the driving wheel and the driven wheel.

[0018] According to some embodiments of the present invention, the adjusting structure includes a second driving member arranged on the bracket, and the second driving member is used to drive the driven wheel to move so as to adjust the distance between the driving wheel and the driven wheel.

[0019] According to some embodiments of the present invention, a transmission structure is arranged between the first driving member and the driving wheel, and the first driving member is in transmission connection with the driving wheel through the transmission structure.

[0020] According to some embodiments of the present invention, the transmission structure includes a first transmission wheel, a second transmission wheel, and a transmission belt. The first transmission wheel is disposed at the output end of the first driving member, the second transmission wheel is disposed on the driving wheel, and the transmission belt is wound around the first transmission wheel and the second transmission wheel.

[0021] According to some embodiments of the present invention, the bracket is provided with a receiving cavity, and the first transmission wheel, the second transmission wheel, and the transmission belt are all installed in the receiving cavity.

[0022] The polishing device according to the second aspect embodiment of the present invention includes the abrasive belt polishing assembly described in the above embodiments.

[0023] The polishing device according to the second aspect embodiment of the present invention has at least the following beneficial effects:

[0024] By adopting the abrasive belt polishing assembly of the first aspect embodiment of the present invention, when the abrasive belt polishing assembly works, the first driving member drives the driving wheel to rotate, and the driving wheel drives the abrasive belt to move, so that the abrasive belt can polish the workpiece. By setting the first pressing wheel, the second pressing wheel, and the extension wheel, since the maximum outer diameter of the extension wheel is smaller than the maximum outer diameter of the driving wheel, and the lengths of the first polishing section and the second polishing section are both greater than the maximum outer diameter of the driving wheel, the edge of the first polishing section or the edge of the second polishing section can contact any position of the special-shaped curved surface of the workpiece, which can avoid interference between the workpiece and the driving wheel or the driven wheel, so as to be applicable to workpieces with special-shaped curved surfaces, and can improve the versatility of the abrasive belt polishing assembly.

[0025] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0027] Figure 1 is a schematic structural view of the abrasive belt polishing assembly according to an embodiment of the present invention;

[0028] Figure 2 is an exploded view of the abrasive belt polishing assembly according to an embodiment of the present invention;

[0029] Figure 3 is a front view of the abrasive belt polishing assembly according to an embodiment of the present invention;

[0030] Figure 4 is a schematic internal structural view of the abrasive belt polishing assembly according to an embodiment of the present invention.

[0031] Reference numerals:

[0032] Bracket 100, accommodation cavity 110, driving wheel 210, driven wheel 220, first driving member 230, first pressing wheel 240, second pressing wheel 250, extension wheel 260, second driving member 270, abrasive belt 300, first polishing section 301, second polishing section 302, first transmission wheel 410, second transmission wheel 420, transmission belt 430. Detailed implementation manners

[0033] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0034] In the description of the present invention, it should be understood that for the orientation description, such as up, down, front, back, left, right, etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0035] In the description of the present invention, the meaning of "several" is one or more, the meaning of "multiple" is two or more, "greater than", "less than", "exceeding", etc. are understood as not including the number itself, and "above", "below", "within", etc. are understood as including the number itself. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0036] In the description of the present invention, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meaning of the above words in the present invention in combination with the specific content of the technical solution.

[0037] Refer to Figures 1 to 3, according to the abrasive belt polishing assembly of the first aspect embodiment of the present invention, it includes a bracket 100, a driving wheel 210, a driven wheel 220, a first driving member 230, a first pressing wheel 240, a second pressing wheel 250, an extension wheel 260 and an abrasive belt 300. The driving wheel 210 and the driven wheel 220 are respectively rotatably arranged at different positions of the bracket 100. The first driving member 230 is arranged on the bracket 100 and connected to the driving wheel 210. The first driving member 230 is used to drive the driving wheel 210 to rotate. The first pressing wheel 240 and the second pressing wheel 250 are respectively rotatably arranged at different positions of the bracket 100. The first pressing wheel 240 is located on the outer peripheral side of the driving wheel 210, and the second pressing wheel 250 is located on the side of the first pressing wheel 240 away from the driving wheel 210. The maximum outer diameter of the driving wheel 210 is D 1 , the extension wheel 260 is rotatably arranged on the bracket 100, and the extension wheel 260 is located on the side of the driving wheel 210 away from the driven wheel 220. The maximum outer diameter of the extension wheel 260 is D 2 , the abrasive belt 300 is sequentially wound around the driving wheel 210, the first pressing wheel 240, the extension wheel 260, the second pressing wheel 250 and the driven wheel 220. The part of the abrasive belt 300 between the first pressing wheel 240 and the extension wheel 260 is the first polishing section 301, and the part of the abrasive belt 300 between the second pressing wheel 250 and the extension wheel 260 is the second polishing section 302. The edges of the first polishing section 301 and the second polishing section 302 are respectively used to polish the workpiece. The length of the first polishing section 301 is L 1 , the length of the first polishing section 301 is L 2 , satisfying: D 2 < D 1 , D 1 < L 1 , D 1 < L 2 , thus, by setting the extension wheel 260, the edge of the first polishing section 301 or the edge of the second polishing section 302 can contact any position of the special-shaped curved surface of the workpiece, which can avoid interference between the workpiece and the driving wheel 210 or the driven wheel 220, so as to be applicable to workpieces with special-shaped curved surfaces and improve the versatility of the abrasive belt polishing assembly.

[0038] Specifically, when the abrasive belt polishing assembly works, the first driving member 230 drives the driving wheel 210 to rotate, and the driving wheel 210 drives the abrasive belt 300 to move, so that the abrasive belt 300 can polish the workpiece. By setting the first pressing wheel 240, the second pressing wheel 250 and the extension wheel 260, since the maximum outer diameter of the extension wheel 260 is smaller than the maximum outer diameter of the driving wheel 210, and the lengths of the first polishing section 301 and the second polishing section 302 are both greater than the maximum outer diameter of the driving wheel 210, the edge of the first polishing section 301 or the edge of the second polishing section 302 can contact any position of the special-shaped surface of the workpiece, which can avoid interference between the workpiece and the driving wheel 210 or the driven wheel 220, so as to be applicable to workpieces with special-shaped surfaces and improve the versatility of the abrasive belt polishing assembly.

[0039] It should be noted that the special-shaped surface refers to a surface with an irregular shape, which will not be elaborated here.

[0040] In some embodiments of the present invention, the maximum outer diameter of the extension wheel 260 is greater than or equal to 30 mm and less than or equal to 100 mm, which can not only ensure the connection strength of the extension wheel 260, but also ensure that the edge of the first polishing section 301 or the edge of the second polishing section 302 can contact any position of the special-shaped surface of the workpiece, and can avoid interference between the workpiece and the driving wheel 210 or the driven wheel 220.

[0041] For example, if the maximum outer diameter of the extension wheel 260 is less than 30 mm, the maximum outer diameter of the extension wheel 260 is too small. Since the size of the connecting shaft connected to the extension wheel 260 is limited by the maximum outer diameter of the extension wheel 260, that is, the connecting shaft connected to the extension wheel 260 is smaller than the maximum outer diameter of the extension wheel 260, the diameter of the connecting shaft connected to the extension wheel 260 is too small, resulting in poor connection strength of the extension wheel 260; if the maximum outer diameter of the extension wheel 260 is greater than 100 mm, the maximum outer diameter of the extension wheel 260 is too large, and the extension wheel 260 is likely to interfere with the workpiece, resulting in the first polishing section 301 and the second polishing section 302 being unable to polish the special-shaped surface of the workpiece.

[0042] It should be noted that the maximum outer diameter of the extension wheel 260 can be 30 mm, 40 mm, 50 mm, 60 mm, 70 mm, 80 mm, 90 mm, 100 mm, and there is no limitation here.

[0043] In some embodiments of the present invention, the minimum distance between the first polishing section 301 and the driving wheel 210 is L 3 , satisfying: L 3 >D 1 , when polishing the special-shaped surface of the workpiece, it can avoid interference between the workpiece and the driving wheel 210, thereby improving the versatility of the abrasive belt polishing assembly.

[0044] In some embodiments of the present invention, along the direction from the first pressing wheel 240 to the extension wheel 260, the minimum distance between the first polishing section 301 and the second polishing section 302 gradually decreases, which can be applicable to different-sized special-shaped curved surfaces, thereby improving the versatility of the abrasive belt polishing assembly.

[0045] For example, along the direction from the first pressing wheel 240 to the extension wheel 260, the first polishing section 301 and the second polishing section 302 gradually narrow, which can be applicable to different-sized special-shaped curved surfaces, thereby improving the versatility of the abrasive belt polishing assembly.

[0046] It should be noted that the minimum distance between the first polishing section 301 and the second polishing section 302 refers to the minimum distance between the side of the first polishing section 301 facing the second polishing section 302 and the side of the second polishing section 302 facing the first polishing section 301, which will not be elaborated here.

[0047] In some embodiments of the present invention, the abrasive belt polishing assembly is provided with an adjusting structure, and the adjusting structure is used to adjust the distance between the driving wheel 210 and the driven wheel 220 so that the abrasive belt 300 can be kept in a tensioned state, which can improve the polishing quality of the workpiece.

[0048] For example, after the abrasive belt 300 is used for a period of time, the abrasive belt 300 becomes slack. The operator can increase the distance between the driving wheel 210 and the driven wheel 220 through the adjusting structure so that the abrasive belt 300 can be kept in a tensioned state, which can improve the polishing quality of the workpiece.

[0049] In some embodiments of the present invention, the adjusting structure includes a second driving member 270 provided on the bracket 100. The second driving member 270 is used to drive the driven wheel 220 to move so as to adjust the distance between the driving wheel 210 and the driven wheel 220, so that the abrasive belt 300 can be kept in a tensioned state, which can improve the polishing quality of the workpiece.

[0050] Specifically, when the abrasive belt 300 is slack, the second driving member 270 drives the driven wheel 220 to move in a direction away from the driving wheel 210, so as to increase the distance between the driving wheel 210 and the driven wheel 220, so that the abrasive belt 300 can be kept in a tensioned state, which can improve the polishing quality of the workpiece.

[0051] It should be noted that the adjusting structure can also be a screw rod adjusting structure, which is not limited here.

[0052] Refer to Figure 4 , in some embodiments of the present invention, a transmission structure is provided between the first driving member 230 and the driving wheel 210. The first driving member 230 is in transmission connection with the driving wheel 210 through the transmission structure, which can facilitate driving the driving wheel 210 to rotate.

[0053] In some embodiments of the present invention, the transmission structure includes a first transmission wheel 410, a second transmission wheel 420, and a transmission belt 430. The first transmission wheel 410 is disposed at the output end of the first driving member 230, the second transmission wheel 420 is disposed on the driving wheel 210, and the transmission belt 430 is wound around the first transmission wheel 410 and the second transmission wheel 420, which can facilitate the rotation of the driving wheel 210.

[0054] It should be noted that the transmission structure can also be a gear transmission structure or a chain transmission structure, which is not limited herein.

[0055] Refer to Figure 4 , in some embodiments of the present invention, the bracket 100 is provided with a receiving cavity 110. The first transmission wheel 410, the second transmission wheel 420, and the transmission belt 430 are all installed in the receiving cavity 110, which can hide the first transmission wheel 410, the second transmission wheel 420, and the transmission belt 430 to prevent dust generated during workpiece polishing from adhering to the first transmission wheel 410, the second transmission wheel 420, and the transmission belt 430, and can improve the service life of the transmission mechanism.

[0056] Refer to Figure 1 、 Figure 2 , according to the polishing device of the second aspect embodiment of the present invention, including the abrasive belt polishing assembly of the first aspect embodiment of the present invention, the edge of the first polishing section 301 or the edge of the second polishing section 302 can contact any position of the special-shaped curved surface of the workpiece, which can avoid interference between the workpiece and the driving wheel 210 or the driven wheel 220, so as to be applicable to workpieces with special-shaped curved surfaces, and can improve the versatility of the abrasive belt polishing assembly.

[0057] Specifically, when the abrasive belt polishing assembly works, the first driving member 230 drives the driving wheel 210 to rotate, and the driving wheel 210 drives the abrasive belt 300 to move, so that the abrasive belt 300 can polish the workpiece. By setting the first pressing wheel 240, the second pressing wheel 250, and the extension wheel 260, since the maximum outer diameter of the extension wheel 260 is smaller than the maximum outer diameter of the driving wheel 210, and the lengths of the first polishing section 301 and the second polishing section 302 are both greater than the maximum outer diameter of the driving wheel 210, the edge of the first polishing section 301 or the edge of the second polishing section 302 can contact any position of the special-shaped curved surface of the workpiece, which can avoid interference between the workpiece and the driving wheel 210 or the driven wheel 220, so as to be applicable to workpieces with special-shaped curved surfaces, and can improve the versatility of the abrasive belt polishing assembly.

[0058] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0059] The above has described this embodiment in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiment, and various changes can be made without departing from the gist within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A belt polishing assembly, characterized in that: include: Bracket (100); The driving wheel (210) and the driven wheel (220) are rotatably disposed at different positions of the bracket (100); A first driving member (230), disposed on the bracket (100) and connected to the driving wheel (210), the first driving member (230) being used to drive the driving wheel (210) to rotate; The first pressing wheel (240) and the second pressing wheel (250) are rotatably disposed at different positions of the bracket (100), the first pressing wheel (240) is located on the outer peripheral side of the driving wheel (210), and the second pressing wheel (250) is located on the side of the first pressing wheel (240) away from the driving wheel (210), and the maximum outer diameter of the driving wheel (210) is D1; An extension wheel (260) is rotatably disposed on the bracket (100), and the extension wheel (260) is located on a side of the driving wheel (210) away from the driven wheel (220), and the maximum outer diameter of the extension wheel (260) is D2; The sanding belt (300) is sequentially wound around the driving wheel (210), the first pressing wheel (240), the extension wheel (260), the second pressing wheel (250) and the driven wheel (220); the portion of the sanding belt (300) located between the first pressing wheel (240) and the extension wheel (260) is the first polishing section (301); the portion of the sanding belt (300) located between the second pressing wheel (250) and the extension wheel (260) is the second polishing section (302); the edge of the first polishing section (301) and the edge of the second polishing section (302) are respectively used for polishing a workpiece; the length of the first polishing section (301) is L1, and the length of the second polishing section (302) is L2, satisfying the following conditions: D2<D1, D1<L1, D1<L2.

2. The abrasive belt polishing assembly according to claim 1, characterized in that: The maximum outer diameter of the extension wheel (260) is greater than or equal to 30 mm and less than or equal to 100 mm.

3. The abrasive belt polishing assembly according to claim 1, characterized in that: The minimum distance between the first polishing section (301) and the driving wheel (210) is L3, satisfying: L3>D1.

4. The abrasive belt polishing assembly according to claim 1, characterized in that: Along the direction from the first pressing wheel (240) to the extending wheel (260), the minimum distance between the first polishing section (301) and the second polishing section (302) gradually decreases.

5. The abrasive belt polishing assembly according to claim 1, characterized in that: The abrasive belt polishing assembly is provided with an adjustment structure, and the adjustment structure is used to adjust the distance between the driving wheel (210) and the driven wheel (220).

6. The abrasive belt polishing assembly according to claim 5, characterized in that: The adjustment structure comprises a second driving member (270) arranged on the bracket (100), and the second driving member (270) is used to drive the driven wheel (220) to move so as to adjust the distance between the driving wheel (210) and the driven wheel (220).

7. The abrasive belt polishing assembly according to claim 1, characterized in that: A transmission structure is provided between the first driving member (230) and the driving wheel (210), and the first driving member (230) is transmission-connected to the driving wheel (210) via the transmission structure.

8. The abrasive belt polishing assembly according to claim 7, characterized in that: The transmission structure comprises a first transmission wheel (410), a second transmission wheel (420) and a transmission belt (430); the first transmission wheel (410) is arranged at the output end of the first driving member (230); the second transmission wheel (420) is arranged on the driving wheel (210); and the transmission belt (430) is wound around the first transmission wheel (410) and the second transmission wheel (420).

9. The abrasive belt polishing assembly according to claim 8, characterized in that: The bracket (100) is provided with a receiving cavity (110), and the first transmission wheel (410), the second transmission wheel (420) and the transmission belt (430) are all installed in the receiving cavity (110).

10. A polishing device, characterized in that: The invention comprises the abrasive belt polishing assembly according to any one of claims 1 to 9.

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