Polishing device

Abstract

The utility model relates to the technical field of bicycle production, in particular to a polishing device. Wherein the air cylinder is arranged in the shell, one end of the rotating shaft is rotationally connected to the air cylinder, the other end of the rotating shaft is connected to the polishing head, the rotor is arranged on the periphery of an eccentric part of the rotating shaft in a sleeving mode, the rotor is located in the air cylinder and provided with a plurality of sliding grooves at intervals in the circumferential direction, the sliding grooves correspond to the blades one to one, and the blades are arranged in the sliding grooves in a sliding mode. A first channel and a second channel are formed in the side, abutting against the rotor, of the air cylinder, the first channel and the second channel both extend anticlockwise in the circumferential direction of the air cylinder, the two ends of the first channel communicate with the air supply device and the sliding groove correspondingly so that the blades can abut against the inner wall of the air cylinder, and the inner wall of the air cylinder, the blades and the outer wall of the rotor jointly define an air inlet cavity; the two ends of the second channel communicate with the air supply device and the air inlet cavity correspondingly. Compared with the prior art, the grinding device has the advantages that the grinding head can rotate anticlockwise, the grinding resistance is reduced, and the grinding effect is improved.

Description

Technical Field

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

[0002] In automated carbon fiber wheel rim grinding, although using two robotic arms to grind the rims evenly and quickly can achieve this, the standard pneumatic tools rotate clockwise. This results in one side of the pneumatic tool rotating in the opposite direction to the wheel rim, which increases grinding resistance, affects the wheel rim speed, and causes uneven grinding results on both sides of the wheel rim.

[0003] Therefore, there is an urgent need for a grinding device to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a grinding device that can rotate counterclockwise to reduce grinding resistance and improve grinding effect.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A grinding device includes a grinding head, a housing, a cylinder, a rotating shaft, a rotor, and several blades. The cylinder is disposed within the housing. One end of the rotating shaft is rotatably connected to the cylinder, and the other end of the rotating shaft is connected to the grinding head. The rotor is sleeved on the outer periphery of the eccentric portion of the rotating shaft and is located within the cylinder. The rotor has several grooves spaced circumferentially, and each groove corresponds to one of the blades. The blades are slidably disposed within the grooves. A first channel and a second channel are provided on the side of the cylinder that abuts against the rotor. Both the first channel and the second channel extend counterclockwise along the circumference of the cylinder. The two ends of the first channel are respectively connected to an air supply device and the grooves, so that the blades can abut against the inner wall of the cylinder. The inner wall of the cylinder, the blades, and the outer wall of the rotor together form an air intake chamber. The two ends of the second channel are respectively connected to the air supply device and the air intake chamber.

[0007] As a preferred technical solution of the above-mentioned grinding device, the cylinder includes an upper cylinder head, a cylinder body, and a lower cylinder head. The upper cylinder head and the lower cylinder head are respectively connected to both ends of the cylinder body. The grinding device also includes a positioning component. The upper cylinder head and the cylinder body are provided with positioning holes, and the lower cylinder head is provided with a positioning groove. One end of the positioning component can pass through the positioning hole of the upper cylinder head and the positioning hole of the cylinder body in sequence and be inserted into the positioning groove.

[0008] As a preferred embodiment of the above-mentioned grinding device, the grinding device further includes a sealing element disposed between the cylinder body and the lower cylinder head.

[0009] As a preferred embodiment of the above-mentioned grinding device, the grinding device further includes a first bearing and a second bearing. The outer ring of the first bearing is fixed to the upper cylinder head, the outer ring of the second bearing is fixed to the lower cylinder head, and the inner rings of both the first bearing and the second bearing are fixed to the rotating shaft.

[0010] As a preferred technical solution of the above-mentioned grinding device, the first channel is recessed in the upper cylinder head. The first channel includes a first air passage and a second air passage that are interconnected. The first air passage is arc-shaped and extends counterclockwise along the circumference of the cylinder. The first air passage can connect to the slide groove. The second air passage connects to the air supply device. The second channel is recessed in the top wall of the cylinder body. The bottom wall of the cylinder body has a third channel recessed therein. The two ends of the third channel are respectively connected to the air supply device and the air intake chamber.

[0011] As a preferred technical solution of the above-mentioned grinding device, a receiving groove is provided between two adjacent sliding grooves, and the receiving groove can be connected to the second air passage.

[0012] As a preferred technical solution of the above-mentioned grinding device, the side wall of the cylinder is provided with an air inlet, the second air passage, the third channel and the second channel are all connected to the air inlet, the air inlet is connected to the air supply device, and the air inlet is T-shaped.

[0013] As a preferred technical solution of the above-mentioned grinding device, the air inlet chamber is located on one side of the air inlet hole, and the side wall of the cylinder on the other side of the air inlet hole is provided with several through grooves. The housing is provided with an air inlet end and an air outlet end, the air inlet end is connected to the air inlet hole, and the air outlet end is connected to the through grooves.

[0014] As a preferred technical solution of the above-mentioned grinding device, the grinding device further includes a plurality of eccentric blocks, which are axially spaced between the grinding head and the cylinder, and the plurality of eccentric blocks are rotatably sleeved on the outer periphery of the rotating shaft.

[0015] As a preferred technical solution of the above-mentioned grinding device, the grinding device further includes a plurality of third bearings, which are arranged in a one-to-one correspondence with a plurality of eccentric blocks. The inner ring of the third bearing is fixed to the rotating shaft, and the outer ring of the third bearing is fixed to the eccentric block.

[0016] The beneficial effects of this utility model are:

[0017] This invention provides a grinding device. The grinding device includes a grinding head, a housing, a cylinder, a rotating shaft, a rotor, and several blades. The cylinder is housed within the housing. One end of the rotating shaft is rotatably connected to the cylinder, and the other end is connected to the grinding head. The rotor is fitted around the outer periphery of the eccentric portion of the rotating shaft and is located within the cylinder. The rotor has several circumferentially spaced grooves, each corresponding to a specific number of blades. The blades slide within the grooves. A first channel and a second channel are provided on the side of the cylinder that abuts against the rotor. Both the first and second channels extend counterclockwise along the circumference of the cylinder. The two ends of the first channel are connected to an air supply device and a groove, respectively, allowing the blades to abut against the inner wall of the cylinder. The inner wall of the cylinder, the blades, and the outer wall of the rotor together form an air intake chamber. The two ends of the second channel are connected to an air supply device and the air intake chamber, respectively. Compared to existing technologies, this grinding device enables the grinding head to rotate counterclockwise, reducing grinding resistance and improving the grinding effect. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0019] Figure 1 This is a first structural schematic diagram of the grinding device provided in this embodiment of the utility model;

[0020] Figure 2 This is a second structural schematic diagram of the grinding device provided in this embodiment of the utility model;

[0021] Figure 3 This is a structural cross-sectional view of the grinding device provided in this embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the upper cylinder head provided in an embodiment of the present utility model;

[0023] Figure 5 This is a first structural schematic diagram of the cylinder block provided in this embodiment of the utility model;

[0024] Figure 6 This is a schematic diagram of the second structure of the cylinder provided in this embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the rotor provided in an embodiment of the present invention.

[0026] In the picture:

[0027] 1. Grinding head; 2. Housing; 21. Air inlet; 22. Air outlet; 3. Cylinder; 31. Upper cylinder head; 311. First channel; 3111. First air passage; 3112. Second air passage; 32. Cylinder body; 321. Second channel; 322. Third channel; 323. Air inlet; 324. Through groove; 33. Lower cylinder head; 4. Shaft; 5. Rotor; 51. Slide groove; 52. Receiving groove; 6. Blade; 7. Positioning component; 8. Positioning hole; 9. Seal; 10. First bearing; 11. Second bearing; 12. Eccentric block; 13. Third bearing. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0032] like Figures 1 to 7 As shown, this utility model provides a grinding device. The grinding device includes a grinding head 1, a housing 2, a cylinder 3, a rotating shaft 4, a rotor 5, and several blades 6.

[0033] Specifically, cylinder 3 is housed within housing 2. One end of rotating shaft 4 is rotatably connected to cylinder 3, and the other end is connected to grinding head 1. Rotor 5 is fitted around the outer periphery of the eccentric portion of rotating shaft 4 and is located within cylinder 3. Rotor 5 has several circumferentially spaced grooves 51, each corresponding to a number of blades 6. Blades 6 are slidably disposed within the grooves 51. A first channel 311 and a second channel 321 are provided on the side of cylinder 3 that abuts against rotor 5. Both the first channel 311 and the second channel 321 extend counterclockwise along the circumference of cylinder 3. The two ends of the first channel 311 are connected to an air supply device and a groove 51, respectively, so that blades 6 can abut against the inner wall of cylinder 3. The inner wall of cylinder 3, blades 6, and outer wall of rotor 5 together form an air intake chamber. The two ends of the second channel 321 are connected to an air supply device and an air intake chamber, respectively. Compared to existing technologies, this grinding device enables grinding head 1 to rotate counterclockwise, reducing grinding resistance and improving grinding effect. Furthermore, in this embodiment, the grinding device is provided with six blades 6, and six grooves 51 are evenly spaced circumferentially on the side wall of the rotor 5. Of course, in other embodiments, the number of blades 6 is determined according to the actual situation, which will not be elaborated here.

[0034] Optionally, the cylinder 3 includes an upper cylinder head 31, a cylinder body 32, and a lower cylinder head 33. The upper cylinder head 31 and the lower cylinder head 33 are respectively connected to both ends of the cylinder body 32. The grinding device also includes a positioning element 7. The upper cylinder head 31 and the cylinder body 32 are provided with positioning holes 8, and the lower cylinder head 33 is provided with a positioning groove. One end of the positioning element 7 can pass through the positioning holes 8 of the upper cylinder head 31 and the cylinder body 32 in sequence and be inserted into the positioning groove, so as to achieve accurate positioning of the upper cylinder head 31, the cylinder body 32, and the lower cylinder head 33, which is convenient for installation.

[0035] Optionally, the grinding device also includes a seal 9, which is disposed between the cylinder body 32 and the lower cylinder head 33, and can improve the sealing between the cylinder body 32 and the lower cylinder head 33 to prevent gas from leaking from the gap between the cylinder body 32 and the lower cylinder head 33.

[0036] Optionally, the grinding device also includes a first bearing 10 and a second bearing 11. The outer ring of the first bearing 10 is fixed to the upper cylinder head 31, the outer ring of the second bearing 11 is fixed to the lower cylinder head 33, and the inner rings of the first bearing 10 and the second bearing 11 are both fixed to the rotating shaft 4. This reduces the frictional force of the rotating shaft 4 and ensures that the rotating shaft 4 rotates smoothly.

[0037] Optionally, the first channel 311 is recessed in the upper cylinder head 31. The first channel 311 includes a first air passage 3111 and a second air passage 3112 that are interconnected. The first air passage 3111 is arc-shaped and extends counterclockwise along the circumference of the cylinder 3. The first air passage 3111 can connect to the slide groove 51. The second air passage 3112 connects to the air supply device. The second channel 321 is recessed in the top wall of the cylinder body 32. The bottom wall of the cylinder body 32 is recessed in the third channel 322. The two ends of the third channel 322 are respectively connected to the air supply device and the air intake chamber. Specifically, the second air passage 3112 is straight, extending inward from the outer edge of the upper cylinder head 31 and connecting with the arc-shaped first air passage 3111. Part of the gas flows into the slide groove 51 through the first channel 311, which can push the blade 6 to slide outward and then abut against the inner wall of the cylinder body 32. At this time, the inner wall of the cylinder 3, the blade 6 and the outer wall of the rotor 5 together form an intake chamber. Another part of the gas flows into the intake chamber from the top of the intake chamber through the second channel 321. At the same time, the gas supplied by the air supply device flows into the intake chamber from the bottom of the intake chamber through the third channel 322, which together push the blade 6 to rotate, thereby driving the rotating shaft 4 to rotate counterclockwise, realizing the counterclockwise operation of the grinding head 1.

[0038] Optionally, a receiving groove 52 is provided between two adjacent sliding grooves 51, and the receiving groove 52 can be connected to the second air passage 3112. Specifically, the rotor 5 is provided with a plurality of receiving grooves 52, and a sliding groove 51 is provided between two adjacent receiving grooves 52. During the rotation of the rotor 5, the second air passage 3112 can be connected to the receiving groove 52, and a part of the gas will flow into the receiving groove 52. Under the action of air pressure, the rotor 5 can be driven to rotate counterclockwise.

[0039] Optionally, the side wall of the cylinder block 32 is provided with an air inlet 323. The second air passage 3112, the third channel 322, and the second channel 321 are all connected to the air inlet 323. The air inlet 323 is connected to the air supply device and is T-shaped. Specifically, the air inlet 323 is T-shaped. When gas enters the air inlet 323, part of the gas flows upward into the second air passage 3112 and the second channel 321, while the other part of the gas flows downward into the third channel 322, thus achieving gas diversion.

[0040] Optionally, the intake chamber is located on one side of the intake port 323, and the side wall of the cylinder 3 on the other side of the intake port 323 is provided with several through grooves 324. The housing 2 is provided with an intake end 21 and an outlet end 22. The intake end 21 communicates with the intake port 323, and the outlet end 22 communicates with the through grooves 324. Specifically, the cylinder body 32 on one side of the intake port 323 is a sealed side, and the cylinder body 32 on the other side of the intake port 323 is an open side. The blade 6 rotates on the sealed side, driving the rotor 5 to rotate. After the blade 6 enters the open side, the gas is discharged from the through grooves 324 on the open side through the outlet end 22.

[0041] Optionally, the grinding device further includes a plurality of eccentric blocks 12, which are axially spaced between the grinding head 1 and the cylinder 3, and each eccentric block 12 is rotatably sleeved on the outer periphery of the rotating shaft 4. Specifically, in this embodiment, the grinding device is provided with two eccentric blocks 12, which can generate high-frequency vibration and improve grinding efficiency. Of course, in some other embodiments, the number of eccentric blocks 12 is determined according to the actual situation, which will not be elaborated here.

[0042] Furthermore, the grinding device also includes a number of third bearings 13, which are arranged one-to-one with a number of eccentric blocks 12. The inner ring of the third bearing 13 is fixed to the rotating shaft 4, and the outer ring of the third bearing 13 is fixed to the eccentric block 12, which can reduce the friction between the eccentric block 12 and the rotating shaft 4.

[0043] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A polishing device, characterized in that, The device includes a grinding head (1), a housing (2), a cylinder (3), a rotating shaft (4), a rotor (5), and several blades (6). The cylinder (3) is disposed inside the housing (2). One end of the rotating shaft (4) is rotatably connected to the cylinder (3), and the other end of the rotating shaft (4) is connected to the grinding head (1). The rotor (5) is sleeved on the outer periphery of the eccentric part of the rotating shaft (4), and the rotor (5) is located inside the cylinder (3). The rotor (5) is provided with several sliding grooves (51) spaced apart circumferentially. The several sliding grooves (51) are arranged one-to-one with several blades (6), and the blades (6) are slidably disposed in the sliding grooves (51, 51, 52, 63, 74, 84, 95, 104, 114, 124, 134, 144, 154, 164, 174, 184, 19 ...94, 124, 194, 124, 19 Inside 51), a first channel (311) and a second channel (321) are provided on the side of the cylinder (3) that abuts against the rotor (5). The first channel (311) and the second channel (321) both extend counterclockwise along the circumference of the cylinder (3), and the two ends of the first channel (311) are respectively connected to the air supply device and the slide groove (51) so that the blade (6) can abut against the inner wall of the cylinder (3). The inner wall of the cylinder (3), the blade (6) and the outer wall of the rotor (5) together form an air intake chamber. The two ends of the second channel (321) are respectively connected to the air supply device and the air intake chamber.

2. The polishing device according to claim 1, characterized in that, The cylinder (3) includes an upper cylinder cover (31), a cylinder body (32), and a lower cylinder cover (33). The upper cylinder cover (31) and the lower cylinder cover (33) are respectively connected to the two ends of the cylinder body (32). The grinding device also includes a positioning component (7). The upper cylinder cover (31) and the cylinder body (32) are both provided with positioning holes (8). The lower cylinder cover (33) is provided with a positioning groove. One end of the positioning component (7) can pass through the positioning hole (8) of the upper cylinder cover (31) and the positioning hole (8) of the cylinder body (32) in sequence and be inserted into the positioning groove.

3. A polishing device according to claim 2, characterized in that, The grinding device also includes a seal (9), which is disposed between the cylinder body (32) and the lower cylinder cover (33).

4. A polishing device according to claim 2, characterized in that, The grinding device also includes a first bearing (10) and a second bearing (11). The outer ring of the first bearing (10) is fixed to the upper cylinder head (31), the outer ring of the second bearing (11) is fixed to the lower cylinder head (33), and the inner rings of the first bearing (10) and the second bearing (11) are both fixed to the rotating shaft (4).

5. A polishing device according to claim 2, characterized in that, The first channel (311) is recessed in the upper cylinder head (31). The first channel (311) includes a first air passage (3111) and a second air passage (3112) that are interconnected. The first air passage (3111) is arc-shaped and extends counterclockwise along the circumference of the cylinder (3). The first air passage (3111) can connect to the slide groove (51). The second air passage (3112) connects to the air supply device. The second channel (321) is recessed in the top wall of the cylinder body (32). The bottom wall of the cylinder body (32) is recessed with a third channel (322). The two ends of the third channel (322) are respectively connected to the air supply device and the air intake chamber.

6. A polishing device according to claim 5, characterized in that, A receiving groove (52) is provided between two adjacent sliding grooves (51), and the receiving groove (52) can be connected to the second air passage (3112).

7. A polishing device according to claim 5, characterized in that, The cylinder body (32) has an air inlet (323) on its side wall. The second air passage (3112), the third channel (322) and the second channel (321) are all connected to the air inlet (323). The air inlet (323) is connected to the air supply device. The air inlet (323) is T-shaped.

8. A polishing device according to claim 7, characterized in that, The air intake chamber is located on one side of the air intake hole (323). The side wall of the cylinder (3) on the other side of the air intake hole (323) is provided with several through grooves (324). The housing (2) is provided with an air intake end (21) and an air outlet end (22). The air intake end (21) is connected to the air intake hole (323), and the air outlet end (22) is connected to the through groove (324).

9. A polishing apparatus according to any one of claims 1-8, characterized in that, The grinding device also includes a number of eccentric blocks (12), which are axially spaced between the grinding head (1) and the cylinder (3), and each of the eccentric blocks (12) is rotatably sleeved on the outer periphery of the rotating shaft (4).

10. A polishing device according to claim 9, characterized in that, The grinding device also includes a plurality of third bearings (13), and the plurality of third bearings (13) are arranged in a one-to-one correspondence with the plurality of eccentric blocks (12). The inner ring of the third bearing (13) is fixed to the rotating shaft (4), and the outer ring of the third bearing (13) is fixed to the eccentric block (12).

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