Flexible grinding and polishing diamond abrasive belt wheel

Abstract

The utility model discloses a flexible grinding and polishing diamond abrasive belt wheel which comprises a structure supporting body assembly, a first diamond abrasive belt piece, a locking screw, a locking pressing plate, a cutter bar, a second wheel disc and a third wheel disc, the first diamond abrasive belt piece is arranged on the outer surface of the structure supporting body assembly, and the locking screw is arranged at one end of the structure supporting body assembly. According to the flexible grinding and polishing diamond abrasive belt wheel, the diamond abrasive belt piece prefabricated body is of a sectioning structure, so that heat dissipation, cooling and chip removal of the grinding and polishing surface are facilitated, complete attachment, local attachment or clearance fit can be achieved by arranging the three sets of abrasive belt pieces in different shapes and pressing after bending or direct punching forming, the wheel disc is of a rubber coating wheel structure, and the abrasive belt pieces are not prone to deformation. According to the diamond abrasive belt wheel, the contact area with the surface of a part to be machined is increased, then the grinding and polishing machining efficiency is improved, the abrasive belt wheel supporting body is easy to replace after being abraded through threaded connection, the abrasive belt wheel supporting body can be repeatedly used, and the diamond abrasive belt wheel can also be used for grinding and polishing machining of blades or blade bodies or other characteristic faces of the blades.

Description

Technical Field

[0001] The utility model relates to the technical field of abrasive belt wheels, in particular to a flexible grinding and polishing diamond abrasive belt wheel. Background Art

[0002] Grinding is a type of surface modification technology. It generally refers to a processing method that uses rough abrasive objects (such as sandpaper containing higher hardness particles) to change the physical properties of the material surface through friction. The main purpose is to obtain a specific surface roughness.

[0003] For example, the patent document with application number 202322530180.1 discloses a flexible diamond grinding belt wheel with cooling wheel grooves, including a flexible diamond grinding belt wheel, wherein the flexible diamond grinding belt wheel includes a diamond grinding belt sheet body, a grinding belt wheel support body, a diamond grinding cloth sheet body and an eight-petal diamond grinding cloth sheet, wherein the diamond grinding cloth sheet body is mounted on one side of the grinding belt wheel support body, and the eight-petal diamond grinding cloth sheet is mounted on one side of the diamond grinding cloth sheet body. The utility model solves the problems in the prior art that the removal amount of grinding, grinding wheel wear, grinding wheel cooling and dressing compensation, etc., which affect the grinding efficiency and the size and shape position accuracy of the grinding, and also solves the problem of uniform connection with the blade body grinding and polishing by providing a flexible diamond grinding belt wheel and adopting diamond grinding belt sheet shape one, diamond grinding belt sheet shape two, diamond grinding belt sheet shape three, diamond grinding belt sheet shape four and matching components according to different requirements.

[0004] Similar to diamond grinding wheels, diamond grinding wheels will generate a lot of heat during the grinding process, and abrasive chips will be produced on the surface. Long-term overheating will cause thermal deformation of the grinding wheel and the workpiece. If the abrasive chips generated during the grinding process cannot be removed in time, they will solidify on the surface of the grinding wheel and the workpiece, forming scratches and surface roughness, affecting the processing quality. Different processing needs require different grinding methods to meet different processing requirements. Since the grinding method does not match the workpiece material, and wear and tear will occur after long-term use, causing loss, parts with special shapes also need to replace different grinding wheels, resulting in frequent replacement, affecting processing efficiency.

[0005] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a flexible grinding and polishing diamond belt wheel is proposed. Utility Model Content

[0006] The utility model aims to provide a flexible diamond grinding belt wheel for grinding and polishing. The diamond grinding wheel will generate a lot of heat during the grinding process, and grinding chips will be generated on the surface. Long-term overheating will cause thermal deformation of the grinding wheel and the workpiece. The grinding chips generated during the grinding process cannot be removed in time, and will solidify on the surfaces of the grinding wheel and the workpiece to form scratches and surface roughness, affecting the processing quality. Different processing needs require different grinding methods to meet different processing requirements. Since the grinding method does not match the workpiece material, and wear and tear will occur after long-term use, causing loss, parts with special shapes also need to replace different grinding wheel discs, resulting in frequent replacement, affecting the processing efficiency.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flexible grinding and polishing diamond belt wheel, comprising a structural support body component, a first diamond belt piece, a locking screw, a locking pressure plate, a tool rod, a second wheel disc and a third wheel disc, wherein the first diamond belt piece is arranged on the outer surface of the structural support body component, the locking screw is arranged at one end of the structural support body component, the outer surface of the locking screw is provided with an external thread, the locking pressure plate is arranged at the other end of the structural support body component, the inner cavity of the locking pressure plate is provided with a mounting hole, the inner surface of one end of the tool rod is provided with an internal thread, the outer surface of the second wheel disc is provided with a second diamond belt piece, and the outer surface of the third wheel disc is provided with a third diamond belt piece.

[0008] Furthermore, the thread sizes of the external thread and the internal thread are equal, and the external thread and the internal thread are meshed with each other.

[0009] Furthermore, the structural support body assembly includes a first wheel disc, a hub and a positioning groove, the first wheel disc is arranged in the inner cavity of the first diamond abrasive belt sheet, and the inner cavity of the first wheel disc is provided with a hub, and the end faces on both sides of the first wheel disc are provided with positioning grooves.

[0010] Furthermore, a groove is provided on the side of the structural support body component that contacts the locking screw, and the locking screw is connected to the mounting hole and the knife rod by sequentially penetrating the structural support body component.

[0011] Furthermore, the first wheel disc, the second wheel disc and the third wheel disc are all of the same wheel disc structure, the first diamond abrasive belt piece, the second diamond abrasive belt piece and the third diamond abrasive belt piece all adopt a petal structure, and the first diamond abrasive belt piece is distributed in a ring array along the structural support body assembly.

[0012] Furthermore, the first diamond abrasive belt sheet, the second diamond abrasive belt sheet and the third diamond abrasive belt sheet are all formed by die-pressing and bending, and the positioning groove is in a fan-shaped groove structure.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the diamond abrasive belt sheet preform adopts a petal structure, which is beneficial to heat dissipation, cooling and chip removal of the grinding and polishing surface; by setting three groups of abrasive belt sheets of different shapes and bending and then pressing or directly stamping, full fit, partial fit or clearance fit can be achieved; the wheel disc adopts a rubber-coated wheel structure to increase the contact area with the surface of the part to be processed, thereby improving the grinding and polishing efficiency; it is easy to replace after wear through threaded connection; the abrasive belt wheel support body can be reused; and the diamond abrasive belt wheel can also be used for grinding and polishing of blades, blade bodies or other characteristic surfaces of blades. The specific contents are as follows:

[0014] A structural support body component, a first wheel disc, a second wheel disc, a third wheel disc, a first diamond abrasive belt sheet, a second diamond abrasive belt sheet and a third diamond abrasive belt sheet are provided. The first wheel disc, the second wheel disc and the third wheel disc are all the same wheel disc, but three groups of different diamond abrasive belt sheets can be installed. The first diamond abrasive belt sheet, the second diamond abrasive belt sheet and the third diamond abrasive belt sheet are all distributed in an annular array along the circumference of the structural support body, and are formed by mold pressing or direct stamping, so that the formed diamond abrasive belt sheet body and the structural support body can respectively achieve the functions of complete fitting, partial fitting or maintaining a certain gap in sequence. The diamond abrasive belt sheets can be completely replaced after being worn. The structural support body, the wheel disc adopts a reusable rubber-coated wheel structure, and the wheel disc adopts polyurethane elastic material, so that the structural support body component has a certain elastic deformation after being subjected to force during the grinding and polishing process, thereby increasing the contact area between the flexible abrasive belt wheel and the surface of the part to be processed during the grinding and polishing process, thereby improving the grinding and polishing efficiency. The wheel hub adopts metal material, but is not limited to metal material, and also non-metallic materials such as polyurethane, plastic, nylon, etc. Positioning grooves are respectively arranged on the end faces on both sides of the structural support body to ensure the position accuracy of the installation process of the split-structure diamond abrasive belt piece preform. A certain number of corresponding positioning grooves are processed on the front wall and the rear wall of the structural support body according to the size of the split-structure diamond abrasive belt piece preform to facilitate the installation of the first diamond abrasive belt piece, the second diamond abrasive belt piece and the third diamond abrasive belt piece. Other structures such as fan-shaped grooves or straight grooves can be adopted. By adopting the fan-shaped groove structure, the area of ​​the diamond abrasive belt piece preform along the circumferential direction can be increased, thereby increasing the effective grinding and polishing area of ​​the grinding belt wheel, and significantly improving the grinding and polishing efficiency.

[0015] A locking screw, an external thread, a locking pressure plate, a mounting hole, a tool rod, an internal thread and a groove are provided. The locking screw fixes one end of the diamond abrasive belt sheet preform to ensure that it is pressed against one end face of the structural support body component. At the same time, the concentricity of the flexible grinding and polishing diamond abrasive belt wheel and the tool rod is ensured. The other end of the diamond abrasive belt sheet preform is fixed by the locking pressure plate to ensure that it is pressed against the other end face of the structural support body. A groove with a certain taper can be provided on the side of the structural support body component in contact with the locking screw, so that there is no protruding rigid structure after the flexible abrasive belt wheel is installed, ensuring that there is no interference with the blade edge plate surface during the grinding and polishing process. The locking screw passes through the structural support body component and the mounting hole through the external thread and engages with the internal thread in the tool rod, so that the device is connected and installed and fixed in the tool rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional explosion structure of a flexible grinding and polishing diamond belt wheel of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of a fan-shaped groove type positioning groove of a flexible grinding and polishing diamond belt wheel of the utility model;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of a fan-shaped groove type rear wall of a positioning groove of a flexible grinding and polishing diamond belt wheel of the utility model;

[0019] Figure 4 It is a schematic diagram of a straight groove type three-dimensional structure of a positioning groove of a flexible grinding and polishing diamond belt wheel of the utility model;

[0020] Figure 5 It is a three-dimensional structural schematic diagram of a straight groove type rear wall of a positioning groove of a flexible grinding and polishing diamond belt wheel of the utility model;

[0021] Figure 6 This is a three-dimensional structural schematic diagram of a flexible grinding and polishing diamond belt wheel of the utility model;

[0022] Figure 7 This is a three-dimensional structural schematic diagram of a flexible grinding and polishing diamond belt wheel of the utility model;

[0023] Figure 8 This is a three-dimensional structural schematic diagram of a flexible grinding and polishing diamond belt wheel of the utility model;

[0024] Fig. 9 This is a three-dimensional structural schematic diagram of a flexible grinding and polishing diamond belt wheel of the utility model;

[0025] Fig.10 This is a three-dimensional structural schematic diagram of a flexible grinding and polishing diamond belt wheel of the utility model;

[0026] Fig.11 The utility model is a schematic diagram of the three-dimensional cross-sectional structure of a flexible diamond abrasive belt wheel for grinding and polishing blade root fillets.

[0027] In the figure: 1, structural support body assembly; 101, wheel disc; 102, wheel hub; 103, positioning groove; 2, first diamond abrasive belt piece; 3, locking screw; 31, external thread; 4, locking pressure plate; 41, mounting hole; 5, tool rod; 51, internal thread; 6, groove; 7, second wheel disc; 71, second diamond abrasive belt piece; 8, third wheel disc; 81, third diamond abrasive belt piece. DETAILED DESCRIPTION

[0028] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0029] like Figures 1 to 11 As shown, a flexible grinding and polishing diamond belt wheel includes a structural support body component 1, a first diamond belt piece 2, a locking screw 3, a locking pressure plate 4, a knife bar 5, a second wheel disc 7 and a third wheel disc 8. The structural support body component 1 includes a first wheel disc 101, a hub 102 and a positioning groove 103. The first wheel disc 101 is arranged in the inner cavity of the first diamond belt piece 2. The first wheel disc 101 and the inner cavity of the first wheel disc 101 are provided with a hub 102, and the end faces on both sides of the first wheel disc 101 are provided with positioning grooves 103. In the face of a narrower arc radius area, a more compact grinding belt wheel structure is required to save assembly space.

[0030] The first diamond abrasive belt piece 2 is arranged on the outer surface of the structural support body component 1, and the outer surface of the second wheel disc 7 is provided with a second diamond abrasive belt piece 71. The second diamond abrasive belt piece 71 has no grinding particles on the end surface of the structural support body component 1 to act on the parts to be processed, thereby improving the stability of the grinding and polishing process, and can be used for the grinding and polishing of the blade transition surface or the blade. The outer surface of the third wheel disc 8 is provided with a third diamond abrasive belt piece 81, and the third diamond abrasive belt piece 81 obtained by pressing and forming is directly installed into the corresponding positioning groove 103 to form a flexible diamond abrasive belt wheel, which can be used for the grinding and polishing of the blade edge plate surface. The first wheel disc 101, the second wheel disc 7 and the third wheel disc 8 are provided with a third diamond abrasive belt piece 81. The three wheel discs 8 are all of the same wheel disc structure, but the wheel discs can be installed with different abrasive belts. The first diamond abrasive belt piece 2, the second diamond abrasive belt piece 71 and the third diamond abrasive belt piece 81 all adopt a petal structure. The first diamond abrasive belt piece 2 is distributed in a ring array along the structural support body component 1. The first diamond abrasive belt piece 2, the second diamond abrasive belt piece 71 and the third diamond abrasive belt piece 81 adopt a petal structure so that the grinding and polishing process is changed from continuous grinding and polishing to intermittent grinding and polishing, which is more conducive to heat dissipation, cooling and chip removal of the grinding and polishing surface, and improves the grinding and polishing effect. The first diamond abrasive belt piece 2, the second diamond abrasive belt piece 71 and the third diamond abrasive belt piece 81 All three groups of diamond abrasive belt sheets are formed by compression molding or direct stamping after bending, so that the formed diamond abrasive belt sheet has the same curvature radius as the outer surface of the structural support body component 1, and can achieve complete fit, partial fit or clearance fit. In order to prevent the surface cracking of the first diamond abrasive belt sheet 2, the second diamond abrasive belt sheet 71 and the third diamond abrasive belt sheet 81 during the deformation process, according to the different initial thicknesses of each group of diamond abrasive belt sheets, the bending and pressing process (or stamping process) is carried out at room temperature or a certain temperature (50°C to 150°C) and a certain holding time, so that the colloid structure of the diamond abrasive belt sheet does not develop. The positioning groove 103 is in the shape of a fan-shaped groove structure, and a certain number of corresponding positioning grooves 103 are processed on the front wall and the rear wall of the structural support body component 1 to facilitate the installation of three groups of different diamond belt pieces. The positioning grooves 103 with the fan-shaped groove structure can increase the area of ​​the diamond belt piece preform along the circumferential direction, thereby increasing the effective grinding and polishing area of ​​the grinding belt wheel, which can significantly improve the grinding and polishing efficiency. The diamond belt piece preform includes but is not limited to a combination or integration of the first diamond belt piece 2, the second diamond belt piece 71 and the third diamond belt piece 81.

[0031] The locking screw 3 is arranged at one end of the structural support body component 1, and the locking screw 3 ensures that it is pressed on one side end face of the structural support body component 1, and at the same time, ensures the concentricity of the flexible grinding and polishing diamond belt wheel and the cutter bar 5. The outer surface of the locking screw 3 is provided with an external thread 31, and the locking pressure plate 4 is arranged at the other end of the structural support body component 1. The locking pressure plate 4 ensures that it is pressed on the other end face of the structural support body component 1, and the inner cavity of the locking pressure plate 4 is provided with a mounting hole 41. The inner surface of one end of the cutter bar 5 is provided with an internal thread 51, and the thread size of the external thread 31 is equal to that of the internal thread 51 The external thread 31 and the internal thread 51 are meshed with each other, and the locking screw 3 is connected to the mounting hole 41 and the tool rod 5 by sequentially penetrating the structural support body component 1. The locking screw 3 penetrates the structural support body component 1 and the mounting hole 41, and uses the external thread 31 on its surface to mesh with the internal thread 51 of the tool rod 5, so as to connect and assemble it on the inner surface of the tool rod 5. A groove 6 is provided on the side of the structural support body component 1 that contacts the locking screw 3. The groove 6 has a certain taper, so that there is no protruding rigid structure after the flexible grinding belt wheel is installed, ensuring that there is no interference with the blade edge plate surface during the grinding and polishing process.

[0032] In summary, if Figures 1 to 11 As shown, the flexible grinding and polishing diamond belt wheel, the structural support body component 1 adopts a reusable rubber-coated wheel structure, including a wheel disc 101 and a hub 102, the wheel disc 101 is made of polyurethane elastic material or other elastic material, the hub is made of metal material or non-metallic material (such as polyurethane, plastic, nylon and other non-metallic materials), for the grinding and polishing of the small curvature radius area of ​​the blade, according to the use requirements, it is necessary to design the structural support body component 1 with the corresponding cross-sectional characteristic structure according to the curvature radius of the blade root and the blade crown, and the structural support body component 1 of a suitable shape is processed according to the cross-sectional characteristic size.

[0033] The locking screw 3 passes through the structural support body component 1 and the mounting hole 41, and uses the external thread 31 on its surface to engage with the internal thread 51 of the tool rod 5, so as to connect and assemble it on the inner surface of the tool rod 5. When disassembling, the disassembly is performed in reverse operation. The groove 6 fits the locking screw 3 to its inner surface through a certain taper, and a certain number of corresponding positioning grooves are processed on the front wall and the rear wall of the structural support body component 1 according to the preform size of the first diamond abrasive belt piece 2, the second diamond abrasive belt piece 71 and the third diamond abrasive belt piece 81 of the petal structure, so as to increase the area of ​​the diamond abrasive belt piece preform along the circumferential direction.

[0034] Subsequently, the first diamond abrasive belt sheet 2, the second diamond abrasive belt sheet 71 and the third diamond abrasive belt sheet 81 are pre-cut into specified shapes, such as rectangular or approximately diamond-shaped structures, and then the three groups of diamond abrasive belts after cutting are bent and formed using a mold. According to the different initial thicknesses of each group of diamond abrasive belt sheets, the bending and pressing or stamping forming process is carried out at room temperature or a certain temperature of 50°C to 150°C, and a certain holding time to form a preform structure of a certain shape. Finally, a mold of a certain size is used to press and form the preform structure so that the inner surface of the diamond abrasive belt sheet preform and the outer surface of the structural support body component 1 are completely fitted, partially fitted or gap fitted in three forms in numerical order to form a final split-flap diamond abrasive belt sheet preform (or a preform is directly obtained by one-step forming using a stamping mold), and the preform includes but is not limited to a combination or integration of the first diamond abrasive belt sheet 2, the second diamond abrasive belt sheet 71 and the third diamond abrasive belt sheet 81.

Claims

1. A flexible grinding and polishing diamond belt wheel, comprising a structural support body assembly (1), a first diamond belt sheet (2), a locking screw (3), a locking pressure plate (4), a cutter bar (5), a second wheel disc (7) and a third wheel disc (8), characterized in that: The first diamond abrasive belt piece (2) is arranged on the outer surface of the structural support body component (1), the locking screw (3) is arranged at one end of the structural support body component (1), and the outer surface of the locking screw (3) is provided with an external thread (31), the locking pressure plate (4) is arranged at the other end of the structural support body component (1), and the inner cavity of the locking pressure plate (4) is provided with a mounting hole (41), the inner surface of one end of the knife rod (5) is provided with an internal thread (51), the outer surface of the second wheel disc (7) is provided with a second diamond abrasive belt piece (71), and the outer surface of the third wheel disc (8) is provided with a third diamond abrasive belt piece (81).

2. A flexible diamond grinding wheel according to claim 1, characterized in that: The thread sizes of the external thread (31) and the internal thread (51) are equal, and the external thread (31) and the internal thread (51) are meshed with each other.

3. The flexible diamond grinding wheel according to claim 1, characterized in that: The structural support body component (1) comprises a first wheel disc (101), a wheel hub (102) and a positioning groove (103); the first wheel disc (101) is arranged in the inner cavity of the first diamond abrasive belt sheet (2); the inner cavity of the first wheel disc (101) is provided with a wheel hub (102); and the end surfaces on both sides of the first wheel disc (101) are provided with positioning grooves (103).

4. A flexible grinding and polishing diamond belt wheel according to claim 3, characterized in that: A groove (6) is provided on the side of the structural support body component (1) that contacts the locking screw (3), and the locking screw (3) is connected to the mounting hole (41) and the knife rod (5) by sequentially passing through the structural support body component (1).

5. The flexible diamond grinding wheel according to claim 3, characterized in that: The first wheel disc (101), the second wheel disc (7) and the third wheel disc (8) are all of the same wheel disc structure; the first diamond abrasive belt piece (2), the second diamond abrasive belt piece (71) and the third diamond abrasive belt piece (81) are all of a petal structure; the first diamond abrasive belt piece (2) is distributed in a ring array along the structural support body component (1).

6. The flexible diamond grinding belt wheel according to claim 3, characterized in that: The first diamond abrasive belt piece (2), the second diamond abrasive belt piece (71) and the third diamond abrasive belt piece (81) are all formed by die-pressing and bending, and the positioning groove (103) is in the shape of a fan-shaped groove structure.

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