An aluminum plate fine polishing apparatus

Abstract

The application discloses a kind of fine polishing equipment of aluminium plate, it is related to aluminium plate processing technical field, including motor, the motor shaft of motor is connected with polishing wheel by expansion sleeve, it further includes flange, the expansion sleeve is connected on the flange, the flange is connected on the polishing wheel by multiple bolts in its circumferential thread connection;The gap that reserves between the flange and the polishing wheel contains dismounting piece, a kind of fine polishing equipment of aluminium plate provided in the application, the flange and the expansion sleeve are connected with the polishing wheel by bolt thread to fix motor shaft and polishing wheel, when the expansion sleeve needs to be disassembled, the bolt is separated from the polishing wheel by rotating the bolt, the gap is placed in the gap when there is no bolt blocking dismounting piece, dismounting piece is moved towards the direction of bolt head, at this time, the flange and the expansion sleeve are synchronously moved to be separated from the polishing wheel, so as to achieve the purpose of dismounting flange and expansion sleeve.

Description

Technical Field

[0001] This invention relates to the field of aluminum plate processing technology, and specifically to a fine polishing equipment for aluminum plates. Background Technology

[0002] Aluminum is a metal with high chemical activity and good plasticity. Its high chemical activity makes it easy to produce defects such as oxide layer, stains and burrs during manufacturing, processing and transportation. Therefore, polishing can remove these defects and improve the surface quality of aluminum plates.

[0003] A sander is a mechanical device used to complete sanding work. Sanding and polishing are synonyms. Aluminum plates can be made smoother and flatter by physical removal of imperfections through grinding wheels and grinding belts. Sanders are equipped with various grinding wheels, such as air drums, bristle brush wheels, bristle wheels, and sponge wheels. Different types of polishing wheels can handle unevenness, scratches, and oxide layers on different aluminum plate surfaces.

[0004] For example, the patent with authorization announcement number CN219027081U, authorization announcement date May 16, 2023, entitled "A Double-Head Sander with a Multi-Directional Adjustable Worktable," discloses a double-head sander with a multi-directional adjustable worktable, relating to the field of double-head sander technology. It includes a worktable with a hydraulic rod fixedly installed at its bottom. The operator, based on the material size and their own height, activates the hydraulic rod via a control terminal to adjust the height of the worktable. Then, a second drive motor is activated, causing a telescopic rod to extend and retract, pushing the double-head sander mechanism laterally. Once the width is suitable, sanding begins. This allows for easy adjustment of the height and width of the double-head sander mechanism, improving its usability and convenience. When the working angle needs adjustment, a first drive motor is activated, driving a bearing to rotate. The bearing drives the first and second gears to rotate, which in turn drives the first and second arc-shaped racks to rotate, causing the base to rotate, thus changing the angle of the double-head sander mechanism. This facilitates angle adjustment, improves processing efficiency, and enhances work efficiency.

[0005] The shortcomings of the aforementioned patents are that existing technologies have three connection methods for the grinding wheel and the rotating shaft: one is a threaded pin connection, which is prone to loosening under vibration or impact; the second is a clamping connection, which cannot guarantee coaxiality and may cause stress concentration at the connection point, thus negatively affecting high-precision grinding; and the third is a shrinking connection, which is more complicated to install and disassemble. All three connection methods have certain defects and are cumbersome to disassemble. Summary of the Invention

[0006] The purpose of this invention is to provide a fine polishing device for aluminum plates to overcome the above-mentioned shortcomings in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A fine polishing device for aluminum plates includes a motor, a grinding wheel connected to the motor shaft of the motor via an expansion sleeve, and a flange, the expansion sleeve being connected to the flange, the flange being threaded to the grinding wheel via a plurality of bolts in its circumferential direction; a gap is reserved between the flange and the grinding wheel to accommodate disassembled parts.

[0009] In the aforementioned fine polishing equipment for aluminum plates, the expansion sleeve is a conical cylinder, and the outer surface of the conical cylinder is conical.

[0010] The aforementioned aluminum plate fine polishing equipment has four bolts.

[0011] In the aforementioned fine polishing equipment for aluminum plates, the disassembly component is a pry bar.

[0012] In the aforementioned fine polishing equipment for aluminum plates, the disassembly component is a protrusion.

[0013] In the aforementioned fine polishing equipment for aluminum plates, the axial dimension of the protrusion is smaller than the axial dimension of the gap.

[0014] In the aforementioned fine polishing equipment for aluminum plates, the disassembly component is provided with a plurality of first elastic elements in the circumferential direction, and the first elastic elements are connected to the flange.

[0015] In the aforementioned fine polishing equipment for aluminum plates, the flange is provided with an annular groove, and the expansion sleeve is provided with an annular protrusion, the annular protrusion being located within the annular groove.

[0016] In the aforementioned fine polishing equipment for aluminum plates, each side of the annular protrusion is connected to the groove wall of the annular groove via an elastic element.

[0017] In the above-mentioned fine polishing equipment for aluminum plates, the elastic element on the annular protrusion facing the grinding wheel is the second elastic element, and the elastic element on the annular protrusion away from the grinding wheel is the third elastic element.

[0018] In the above technical solution, the present invention provides a fine polishing device for aluminum plates. The flange and the expansion sleeve are connected to the grinding wheel by bolts to fix the motor shaft and the grinding wheel. When the expansion sleeve needs to be disassembled, the bolt is rotated to disengage the bolt from the grinding wheel. When there is no bolt obstruction, the disassembly part is placed in the gap and moved towards the bolt head. At this time, the flange and the expansion sleeve move synchronously to disengage from the grinding wheel, thus achieving the purpose of disassembling the flange and the expansion sleeve. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the structure of the polishing equipment provided in an embodiment of the present invention;

[0021] Figure 2 This is a partial structural schematic diagram of a flange provided in an embodiment of the present invention;

[0022] Figure 3 A cross-sectional view of the flange and expansion sleeve provided in an embodiment of the present invention;

[0023] Figure 4 A cross-sectional view of a flange and an expansion sleeve provided in another embodiment of the present invention;

[0024] Figure 5 This is a cross-sectional view of a flange and an expansion sleeve provided in another embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Motor; 2. Expansion sleeve; 3. Grinding wheel; 4. Flange; 5. Bolt; 6. Disassembly parts; 7. Gap; 8. Annular groove; 9. Annular protrusion; 10. First elastic element; 11. Second elastic element; 12. Third elastic element. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Reference Figure 1-5 This invention provides a fine polishing device for aluminum plates, including a motor 1, a grinding wheel 3 connected to the motor shaft of the motor 1 via an expansion sleeve 2, and a flange 4, the expansion sleeve 2 being connected to the flange 4, the flange 4 being threaded to the grinding wheel 3 via a plurality of bolts 5 in its circumferential direction, and a gap 7 reserved between the flange 4 and the grinding wheel 3 to accommodate a disassembly component 6.

[0029] Specifically, a grinding wheel 3 is connected to the motor shaft of the motor 1 via a shrink sleeve 2. Preferably, the shrink sleeve 2 is a conical cylinder with a tapered outer surface. The tapered structure of the outer surface serves to fix the grinding wheel 3 and the motor shaft by adjusting the axial displacement of the tapered surface. That is, the shrink sleeve 2 is fitted onto the motor shaft, and the grinding wheel 3 is fitted onto the shrink sleeve 2. A flange 4 is also included. The end of the shrink sleeve 2 located outside the grinding wheel 3 is connected to the flange 4. Simultaneously, the flange 4 is threaded onto the grinding wheel 3 by multiple bolts 5 (e.g., 3-6 bolts) along its circumferential direction. The portion of the bolt 5 extending into the grinding wheel 3 has external threads, while the remaining portion of the bolt 5 is a smooth section, i.e., the part that mates with the flange 4 is a smooth section. Clearly, when the bolt 5 is threadedly connected to the grinding wheel 3, the entire assembly synchronously drives the flange 4 and the expansion sleeve 2 towards the grinding wheel 3, causing the expansion sleeve 2 to move axially to more tightly connect the motor shaft and the grinding wheel 3. This secures the motor shaft and the grinding wheel 3. In this embodiment, when the motor shaft and the grinding wheel 3 are connected, i.e., when the bolt 5 is tightened, a space is reserved between the flange 4 and the grinding wheel 3 to accommodate the disassembly piece 6. Gap 7 is used for disassembly. Preferably, the disassembly component 6 is a pry bar. When the expansion sleeve 2 needs to be disassembled, multiple bolts 5 are disassembled sequentially until the bolts 5 are completely disengaged from the grinding wheel 3. When all the bolts 5 on the flange 4 are disengaged from the grinding wheel 3, and there are no bolts 5 obstructing the gap 7, the end of the pry bar is placed in the gap 7, and then the pry bar is pried away from the grinding wheel 3. At this time, the lever effect can be used very well to disassemble the expansion sleeve 2. The disassembly component 6 will drive the flange 4 to move away from the grinding wheel 3. Since the expansion sleeve 2 is connected to the flange 4, the flange 4 The expansion sleeve 2 moves synchronously away from the grinding wheel 3. In this way, the flange 4 is pried by the pry bar to drive the expansion sleeve 2 away from the grinding wheel 3. The core point of this embodiment of the invention is that the flange 4 and the expansion sleeve 2 are connected to each other, and a gap 7 is added between the flange 4 and the grinding wheel 3. When the expansion sleeve 2 needs to be disassembled, the disassembly piece 6 is placed in the gap to pry the flange 4 and move it away from the grinding wheel 3. At this time, the expansion sleeve 2 and the flange 4 move horizontally synchronously to disassemble from the grinding wheel 3, thus achieving the purpose of quick disassembly. Moreover, during installation, pressure can be applied by the bolts 5, which can achieve greater pressure.

[0030] This invention provides a fine polishing device for aluminum plates. The flange 4 and the expansion sleeve 2 are threadedly connected to the grinding wheel 3 by bolts 5 to fix the motor shaft and the grinding wheel 3. When the expansion sleeve 2 needs to be disassembled, the bolts 5 are rotated to disengage from the grinding wheel 3. When there are no bolts 5 blocking the gap 7, the disassembly part 6 is placed in the gap. The disassembly part 6 is moved away from the grinding wheel 3. At this time, the flange 4 and the expansion sleeve 2 move synchronously to disengage from the grinding wheel 3, thus achieving the purpose of disassembling the flange 4 and the expansion sleeve 2.

[0031] In another embodiment provided by the present invention, such as Figure 4 As shown, the disassembly component 6 is a protrusion on the smooth section of the bolt 5. The axial dimension of the protrusion is smaller than the axial dimension of the gap. The disassembly component 6 is mounted on the bolt 5. When the bolt 5 rotates and disengages from the grinding wheel 3, the disassembly component 6 will abut against the flange 4. As the bolt 5 continues to rotate, the bolt 5 will drive the flange 4 to move away from the grinding wheel 3. The flange 4 will also drive the expansion sleeve 2 to move horizontally in sync. When the bolt 5 is completely disengaged from the grinding wheel 3, the expansion sleeve 2 can be pulled directly by pulling the flange 4 to disengage from the grinding wheel 3. The advantage of this design is that disassembly can be achieved simply by rotating the bolt 5 without the need for additional tools.

[0032] In another embodiment provided by the present invention, such as Figure 5As shown, the disassembly component 6 is provided with a plurality of first elastic elements 10 circumferentially. The first elastic elements 10 are movably connected to the flange 4. Here, "movably connected" means that the bolts need to rotate during installation and disassembly, which will drive the disassembly component 6 and the disassembly component 6 to rotate synchronously, while the flange 3 does not rotate. Therefore, the end of the first elastic element 10 will slide relative to the end face of the flange 3, just like the end of a spring slides on the end face of the flange 3. The wall of the central hole of the flange 3 is provided with an annular groove 8. The end of the expansion sleeve 2 is provided with an annular protrusion 9. The annular protrusion 9 is located in the annular groove 8. The axial dimension of the annular protrusion 9 is smaller than the axial dimension of the annular groove 8. Here, the axial dimension refers to the axial dimension of the motor shaft. Each side of the annular protrusion 9 is connected to the groove wall of the annular groove 8 through an elastic element. The elastic element on the side of the annular protrusion 9 facing the grinding wheel 3 is called the second elastic element 11, and the elastic element on the side of the annular protrusion 9 away from the grinding wheel 3 is called the third elastic element 12. The elastic elements are such as elastic gaskets, springs, etc. In the aforementioned embodiment, because the flange 4 is simultaneously limited by multiple bolts 5, the flange 4 cannot be moved axially as a whole when a single bolt 5 moves while the other bolts 5 do not. This creates interference, requiring at least two or more bolts 5 to be rotated synchronously during disassembly, which is inconvenient. In this embodiment, when the expansion sleeve 2 needs to be disassembled, a single bolt 5 is rotated to move the bolt 5 away from the grinding wheel 3. If the other bolts do not move axially at this time, the disassembly component 6 will compress the first elastic element 10, and the flange 4 will not move until two or more bolts 5 are disassembled, at which point the flange 4 will move axially, making disassembly more convenient. Furthermore, due to the presence of the annular groove 8 and the annular protrusion 9, the expansion sleeve 2 does not need to move completely synchronously with the flange 4 when the flange 4 is disassembled or installed. When the flange 4 moves the expansion sleeve 2 away from the grinding wheel 3, and because the axial dimension of the annular protrusion 9 is smaller than the axial dimension of the annular groove 8, the annular protrusion 9 will not wear the inner wall of the annular groove 8. The groove wall of the annular groove 8 will squeeze the third elastic element 12, and the annular protrusion 9 of the expansion sleeve 2 will also squeeze the second elastic element 11. Thus, the second elastic element 11 and the third elastic element 12 provide elastic buffering force during the movement of the expansion sleeve 2, making the squeezing more flexible and reducing the probability of hard grinding.

[0033] Furthermore, such as Figure 5As shown, in the aforementioned embodiment, the outer wall of the bolt 5 is attached to the inner wall of the bolt hole of the flange. Thus, when the bolt 5 rotates and moves towards the grinding wheel 3, it is strictly required that the surface of the flange 4 be perpendicular to the axial direction of the motor shaft, which may cause jamming. Therefore, the improvement of this embodiment is that the smooth section of the bolt 5 is configured with a radial dimension smaller than the radial dimension of the hole on the flange 4. At the same time, there is also a gap between the outer wall of the annular protrusion 9 (the outer annular wall facing away from the central axis of the motor shaft) and the bottom wall of the opposite annular groove 8. Thus, when the bolt 5 rotates and disengages, since there is still a certain space between the bolt 5 and the hole of the flange 4, the flange 4 can be deflected. This deflection will not cause the expansion sleeve 2 to be difficult to disassemble, and it also reduces the probability of jamming.

[0034] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An aluminum plate fine polishing apparatus comprising a motor, a polishing wheel connected to a motor shaft of the motor through a tension sleeve, characterized in that, It also includes a flange, the expansion sleeve is connected to the flange, and the flange is connected to the grinding wheel by a plurality of bolts threaded in its circumferential direction; A gap is provided between the flange and the grinding wheel to accommodate the disassembled parts; The expansion sleeve is a conical cylinder, and the outer surface of the conical cylinder is conical; The disassembly component is a protrusion formed on the outer wall of the bolt; The axial dimension of the protrusion is smaller than the axial dimension of the gap; When the bolt rotates and disengages from the grinding wheel, the disassembly part will abut against the flange. As the bolt continues to rotate, the bolt will drive the flange to move away from the grinding wheel, and the flange will also drive the expansion sleeve to move horizontally in sync. When the bolt is completely disengaged from the grinding wheel, the expansion sleeve can be pulled directly by pulling the flange to disengage from the grinding wheel. The disassembly component is provided with a plurality of first elastic elements in the circumferential direction, and the first elastic elements are connected to the flange. The flange is provided with an annular groove, and the expansion sleeve is provided with an annular protrusion, the annular protrusion being located within the annular groove; The annular protrusion is connected to the groove wall of the annular groove on each of its axial sides by an elastic element. The elastic element on the annular protrusion facing the grinding wheel is the second elastic element, and the elastic element on the annular protrusion away from the grinding wheel is the third elastic element. When the expansion sleeve needs to be disassembled, rotate a single bolt to move the bolt away from the grinding wheel. If the other bolts do not move axially at this time, the disassembly part will squeeze the first elastic element and the flange will not move until two or more bolts are disassembled, at which point the flange will move axially. The smooth section of the bolt is configured with a radial dimension smaller than that of the hole on the flange, while there is also a gap between the outer wall of the annular protrusion and the bottom wall of the opposite annular groove.

2. The aluminum plate fine polishing apparatus according to claim 1, wherein There are four bolts.

3. The aluminum plate fine polishing apparatus according to claim 1, wherein The disassembly component is a pry bar.

Images