Abrasive belt polishing assembly and polishing equipment

Abstract

The utility model discloses an abrasive belt polishing assembly and discloses 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 respectively and 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 utility model relates to abrasive belt polishing technical field, especially abrasive belt polishing assembly and polishing equipment of a kind of abrasive belt polishing component. BACKGROUND

[0002] The polishing device includes polishing wheel polishing and abrasive belt polishing, and the abrasive belt polishing is to wrap the abrasive belt on two abrasive belt wheels, one of which rotates to drive the abrasive belt to move between the two abrasive belt wheels and thus realize polishing and grinding, and the existing abrasive belt polishing device is directly driven by a speed reducer motor to rotate one abrasive belt wheel, when polishing the irregular surface of a workpiece, the abrasive belt cannot contact the irregular surface of the workpiece, resulting in that the irregular surface of the workpiece cannot be polished, and the polishing quality of the workpiece is poor. SUMMARY

[0003] The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, the utility model provides an abrasive belt polishing assembly capable of polishing the irregular surface of a workpiece.

[0004] The utility model further provides a polishing equipment with the above abrasive belt polishing assembly.

[0005] According to the abrasive belt polishing assembly of the first aspect embodiment of the utility model, comprising:

[0006] A support;

[0007] A driving wheel and a driven wheel are respectively rotatably arranged at different positions of the support;

[0008] A first driving member is arranged on the support and connected with the driving wheel, and the first driving member is used for driving the driving wheel to rotate;

[0009] A first pressing wheel and a second pressing wheel are respectively rotatably arranged at different positions of the support, the first pressing wheel is located on the outer circumferential side of the driving wheel, and the second pressing wheel is located on the side of the first pressing wheel away from the driving wheel, and the maximum outer diameter of the driving wheel is D1;

[0010] An extension wheel is rotatably arranged on the support, and the extension wheel is located on the side of the driving wheel away from the driven wheel, and the maximum outer diameter of the extension wheel is D2;

[0011] The sand belt is sequentially wound around the driving wheel, the first pressing wheel, the extension wheel, the second pressing wheel and the driven wheel, a part of the sand belt between the first pressing wheel and the extension wheel is a first polishing section, a part of the sand belt between the second pressing wheel and the extension wheel is a second polishing section, edges of the first polishing section and the second polishing section are respectively used for polishing a workpiece, a length of the first polishing section is L1, a length of the second polishing section is L2, and the following conditions are met: D2 < D1, D1 < L1 and D1 < L2.

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

[0013] When the sand belt polishing assembly works, the first driving member drives the driving wheel to rotate, and the driving wheel drives the sand belt to move, so that the sand belt can polish the workpiece, the first pressing wheel, the second pressing wheel and the extension wheel are arranged, the maximum outer diameter of the extension wheel is smaller than the maximum outer diameter of the driving wheel, the length of the first polishing section and the length of 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 be in contact with any position of the special-shaped curved surface of the workpiece, interference between the workpiece and the driving wheel or the driven wheel can be avoided, the sand belt polishing assembly can be suitable for the workpiece with the special-shaped curved surface, and the versatility of the sand belt polishing assembly can be improved.

[0014] According to some embodiments of the present application, 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 application, the minimum distance between the first polishing section and the driving wheel is L3, and the following condition is met: L3 > D1.

[0016] According to some embodiments of the present application, in 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 application, the sand belt polishing assembly is provided with an adjusting structure, and the adjusting structure is used for adjusting the distance between the driving wheel and the driven wheel.

[0018] According to some embodiments of the present application, the adjusting structure comprises a second driving member arranged on the support, and the second driving member is used for driving 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 application, 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 application, the transmission structure comprises a first transmission wheel, a second transmission wheel and a transmission belt, the first transmission wheel is arranged at the output end of the first driving member, the second transmission wheel is arranged at the driving wheel, and the transmission belt is arranged around the first transmission wheel and the second transmission wheel.

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

[0022] According to the polishing device of the second aspect of the embodiments of the present application, the sand belt polishing assembly is as described in the above embodiments.

[0023] According to the polishing device of the second aspect of the embodiments of the present application, at least the following beneficial effects are achieved:

[0024] When the sand belt polishing assembly of the first aspect of the present application works, the first driving member drives the driving wheel to rotate, the driving wheel drives the sand belt to move, so that the sand belt can polish the workpiece, and by arranging 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, the length of the first polishing section and the length of the second polishing section are both greater than the maximum outer diameter of the driving wheel, so that the edge of the first polishing section or the edge of the second polishing section can contact the special-shaped curved surface of the workpiece at any position, interference between the workpiece and the driving wheel or the driven wheel can be avoided, so that the sand belt polishing assembly can be applied to the workpiece with a special-shaped curved surface, and the versatility of the sand belt polishing assembly can be improved.

[0025] Additional aspects and advantages of the present application will be given in part in the following description, some of which will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0026] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

[0027] Figure 1 FIG. 1 is a structural schematic view of a sand belt polishing assembly according to an embodiment of the present application;

[0028] Figure 2 FIG. 2 is an exploded schematic view of the sand belt polishing assembly according to the embodiment of the present application;

[0029] Figure 3 FIG. 3 is a front view of the sand belt polishing assembly according to the embodiment of the present application;

[0030] Figure 4 FIG. 4 is a schematic view of the internal structure of the sand belt polishing assembly according to the embodiment of the present application.

[0031] Reference signs:

[0032] Support 100, accommodating cavity 110, driving wheel 210, driven wheel 220, first driving member 230, first compression wheel 240, second compression 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 DESCRIPTION

[0033] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0034] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0035] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, and above, below, etc. are understood as including the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of indicated technical features.

[0036] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application according to the specific content of the technical scheme.

[0037] Reference Figures 1 to 3According to the sand belt polishing assembly of the first aspect of the utility model, the first drive part 230 is arranged on the support 100 and is connected with the driving wheel 210, and the first drive part 230 is used for driving the driving wheel 210 to rotate, the first pressing wheel 240 and the second pressing wheel 250 are rotatably arranged at different positions of the support 100, the first pressing wheel 240 is located at the outer circumferential side of the driving wheel 210, and the second pressing wheel 250 is located at the side, away from the driving wheel 210, of the first pressing wheel 240, the maximum outer diameter of the driving wheel 210 is D1, the extension wheel 260 is rotatably arranged at the support 100, and the extension wheel 260 is located at the side, away from the driven wheel 220, of the driving wheel 210, the maximum outer diameter of the extension wheel 260 is D2, the sand belt 300 is sequentially arranged on 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 sand belt 300 between the first pressing wheel 240 and the extension wheel 260 is the first polishing section 301, the part of the sand 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 for polishing workpieces, the length of the first polishing section 301 is L1, the length of the first polishing section 301 is L2, and the following conditions are met: D2 < D1, D1 < L1, and D1 < L2, so that the edges of the first polishing section 301 or the second polishing section 302 can be in contact with any position of the special-shaped curved surface of the workpiece, the workpiece can be prevented from interfering with the driving wheel 210 or the driven wheel 220, the sand belt polishing assembly can be suitable for workpieces with special-shaped curved surfaces, and the versatility of the sand belt polishing assembly can be improved.

[0038] Specifically, when the sand belt polishing assembly works, the first drive part 230 drives the driving wheel 210 to rotate, the driving wheel 210 drives the sand belt 300 to move, so that the sand belt 300 can polish workpieces, the first pressing wheel 240, the second pressing wheel 250 and the extension wheel 260 are arranged, the maximum outer diameter of the extension wheel 260 is smaller than the maximum outer diameter of the driving wheel 210, the length of the first polishing section 301 and the length of the second polishing section 302 are both greater than the maximum outer diameter of the driving wheel 210, so that the edges of the first polishing section 301 or the second polishing section 302 can be in contact with any position of the special-shaped curved surface of the workpiece, the workpiece can be prevented from interfering with the driving wheel 210 or the driven wheel 220, the sand belt polishing assembly can be suitable for workpieces with special-shaped curved surfaces, and the versatility of the sand belt polishing assembly can be improved.

[0039] It should be noted that the special-shaped curved surface refers to an irregular curved surface, which will not be described here.

[0040] In some embodiments of the utility model, the maximum outer diameter of extension wheel 260 is greater than or equal to 30mm and less than or equal to 100mm, which can ensure the connection strength of extension wheel 260 and the edge of first polishing section 301 or the edge of second polishing section 302 can contact with the special-shaped curved surface of workpiece at any position, which can avoid the interference between workpiece and driving wheel 210 or driven wheel 220.

[0041] For example, if the maximum outer diameter of extension wheel 260 is less than 30mm, the maximum outer diameter of extension wheel 260 is too small, and the size of the connecting shaft connected to extension wheel 260 is limited by the maximum outer diameter of extension wheel 260, that is, the connecting shaft connected to extension wheel 260 is smaller than the maximum outer diameter of extension wheel 260, which leads to the diameter of the connecting shaft connected to extension wheel 260 is too small, resulting in poor connection strength of extension wheel 260; if the maximum outer diameter of extension wheel 260 is greater than 100mm, the maximum outer diameter of extension wheel 260 is too large, which is easy to interfere with the workpiece, resulting in that first polishing section 301 and second polishing section 302 cannot polish the special-shaped curved surface of the workpiece.

[0042] It should be noted that the maximum outer diameter of extension wheel 260 can be 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, which is not limited here.

[0043] In some embodiments of the utility model, the minimum distance between first polishing section 301 and driving wheel 210 is L3, which satisfies: L3>D1, which can avoid the interference between workpiece and driving wheel 210 when polishing the special-shaped curved surface of the workpiece, thereby improving the versatility of the abrasive belt polishing assembly.

[0044] In some embodiments of the utility model, the minimum distance between first polishing section 301 and second polishing section 302 gradually decreases along the direction from first compression wheel 240 to extension wheel 260, which can be suitable for different sizes of special-shaped curved surface, thereby improving the versatility of the abrasive belt polishing assembly.

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

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

[0047] In some embodiments of the utility model, the abrasive belt polishing assembly is provided with an adjusting structure, which is used for adjusting 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, and the polishing quality of the workpiece can be improved.

[0048] For example, after the abrasive belt 300 is used for a period of time, the abrasive belt 300 is relaxed, and 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, and the polishing quality of the workpiece can be improved.

[0049] In some embodiments of the utility model, the adjusting structure comprises a second driving member 270 arranged on the support 100, and the second driving member 270 is used for driving 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, and the polishing quality of the workpiece can be improved.

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

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

[0052] Referring to Figure 4 In some embodiments of the utility model, a transmission structure is arranged between the first driving member 230 and the driving wheel 210, and the first driving member 230 is in transmission connection with the driving wheel 210 through the transmission structure, so that the driving wheel 210 can be conveniently driven to rotate.

[0053] In some embodiments of the utility model, 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 on 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 arranged around the first transmission wheel 410 and the second transmission wheel 420, so that the driving wheel 210 can be conveniently driven to rotate.

[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 here.

[0055] Referring to Figure 4In some embodiments of this utility model, the bracket 100 is provided with a receiving cavity 110, in which the first transmission wheel 410, the second transmission wheel 420 and the transmission belt 430 are all installed. This can hide the first transmission wheel 410, the second transmission wheel 420 and the transmission belt 430, so as to avoid dust generated during polishing of the workpiece from being attached to the first transmission wheel 410, the second transmission wheel 420 and the transmission belt 430, thereby improving the service life of the transmission mechanism.

[0056] Reference Figure 1 , Figure 2 The polishing equipment according to the second aspect of the present invention includes the belt polishing assembly of the first aspect 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 irregular 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 irregular curved surfaces and improve the versatility of the belt polishing assembly.

[0057] Specifically, when the belt polishing assembly is working, the first driving member 230 drives the drive wheel 210 to rotate, and the drive wheel 210 drives the sanding belt 300 to move so that the sanding belt 300 can polish the workpiece. By setting the first pressure wheel 240, the second pressure 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 drive wheel 210, the length of the first polishing section 301 and the length of the second polishing section 302 are both greater than the maximum outer diameter of the drive wheel 210, so that the edge of the first polishing section 301 or the edge of the second polishing section 302 can contact any position of the irregular curved surface of the workpiece, which can avoid interference between the workpiece and the drive wheel 210 or the driven wheel 220, so as to be applicable to workpieces with irregular curved surfaces and improve the versatility of the belt polishing assembly.

[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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, they should be considered to be within the scope of this specification.

[0059] The present invention has been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the invention.

Claims

1. A belt sander assembly comprising: The sand belt polishing assembly comprises a support (100), a driving wheel (210) and a driven wheel (220) rotatably arranged at different positions of the support (100), a first driving member (230) arranged on the support (100) and connected with the driving wheel (210), the first driving member (230) being used for driving the driving wheel (210) to rotate, a first pressing wheel (240) and a second pressing wheel (250) rotatably arranged at different positions of the support (100), the first pressing wheel (240) being located at the outer circumferential side of the driving wheel (210), and the second pressing wheel (250) being located at the side of the first pressing wheel (240) away from the driving wheel (210), the maximum outer diameter of the driving wheel (210) being D1, an extension wheel (260) rotatably arranged on the support (100), the extension wheel (260) being located at the side of the driving wheel (210) away from the driven wheel (220), the maximum outer diameter of the extension wheel (260) being D2, and a sand belt (300) 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 sand belt (300) between the first pressing wheel (240) and the extension wheel (260) being a first polishing section (301), the part of the sand belt (300) between the second pressing wheel (250) and the extension wheel (260) being a second polishing section (302), the edges of the first polishing section (301) and the second polishing section (302) being used for polishing workpieces, the length of the first polishing section (301) being L1, the length of the second polishing section (302) being L2, and D2≤D1, D1L1 and D1L2. 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. The minimum distance between the first polishing section (301) and the driving wheel (210) is L3, and L3>D1. In 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. The sand belt polishing assembly is provided with an adjusting structure used for adjusting the distance between the driving wheel (210) and the driven wheel (220). The adjusting structure comprises a second driving member (270) arranged on the support (100), the second driving member (270) being used for driving the driven wheel (220) to move, so as to adjust the distance between the driving wheel (210) and the driven wheel (220). A transmission structure is arranged between the first driving member (230) and the driving wheel (210), and the first driving member (230) is in transmission connection with the driving wheel (210) through the transmission structure.

2. The abrasive belt polishing assembly of claim 1, wherein, ​ 3. The abrasive belt polishing assembly of claim 1, wherein, ​ 4. The abrasive belt polishing assembly of claim 1, wherein, ​ 5. The abrasive belt polishing assembly of claim 1, wherein, ​ 6. The abrasive belt polishing assembly of claim 5, wherein, ​ 7. The abrasive belt polishing assembly of claim 1, wherein, ​ 8. The abrasive belt polishing assembly of claim 7, wherein, 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 at the driving wheel (210), and the transmission belt (430) is arranged around the first transmission wheel (410) and the second transmission wheel (420).

9. The abrasive belt polishing assembly of claim 8, wherein, The support (100) is provided with a containing cavity (110), and the first transmission wheel (410), the second transmission wheel (420) and the transmission belt (430) are all mounted in the containing cavity (110).

10. A polishing apparatus characterized by comprising: A sand belt polishing assembly comprising any one of claims 1 to 9.

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