A rim grinding device and a grinding platform

Abstract

The present invention belongs to the technical field of bicycle manufacturing and discloses a wheel rim grinding device and a grinding platform. The wheel rim grinding device includes: a support platform and two grinding mechanical arms, the support platform is used to support the wheel rim, and the two grinding mechanical arms are respectively arranged on both sides of the support platform. The wheel rim grinding device also includes a clamping mechanism, the clamping mechanism is arranged on the support platform, and the clamping mechanism is used to clamp or release the wheel rim. When the wheel rim is clamped by the clamping mechanism, the axis of the wheel rim is perpendicular to the support direction of the support platform. One grinding mechanical arm can grind the wheel rim clockwise, and the other grinding mechanical arm can grind the wheel rim counterclockwise. The wheel rim grinding device can achieve simultaneous grinding of both sides of the wheel rim, and ensure that the grinding direction of both sides of the wheel rim is the same as the rotation direction of the wheel rim, thereby shortening the wheel rim grinding time and improving the wheel rim grinding quality and grinding efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of bicycle manufacturing, and in particular to a wheel rim grinding device and a grinding platform. Background Art

[0002] In the bicycle manufacturing industry, the introduction of carbon fiber rims in the 1990s marked a significant breakthrough in improving bicycle performance. The manufacturing process for carbon fiber rims primarily involves preforming, hot pressing, grinding, and polishing. During the grinding phase, the current automated rim grinding methods used in the industry are mostly semi-automatic, supplemented by manual grinding. This method, which assists manual work, lacks uniform grinding, reduces product quality, and is inefficient.

[0003] To address the challenges of manual labor, a conventional carbon fiber wheel rim grinding device utilizes a grinding robot, a rotating assembly, and a clamping assembly to automatically grind the carbon fiber wheel rim. However, after grinding one end of the rim, the rotating assembly must flip the rim over while the robot grinds the other end. This results in long grinding times and low grinding efficiency.

[0004] Therefore, a wheel rim grinding device is urgently needed to solve the above-mentioned technical problems. Summary of the Invention

[0005] The object of the present invention is to provide a wheel rim grinding device, which has a short grinding time, high grinding efficiency and high grinding quality compared with the prior art.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A wheel rim grinding device is provided, comprising: a support platform and two grinding robot arms, the support platform is used to support the wheel rim, the two grinding robot arms are respectively arranged on both sides of the support platform, the wheel rim grinding device also includes a clamping mechanism, the clamping mechanism is arranged on the support platform, the clamping mechanism is used to clamp or loosen the wheel rim, and when the wheel rim is clamped by the clamping mechanism, the axis of the wheel rim is perpendicular to the supporting direction of the support platform, one grinding robot arm can grind the wheel rim clockwise, and the other grinding robot arm can grind the wheel rim counterclockwise.

[0008] Preferably, the wheel rim grinding device also includes a loading platform and a unloading platform, the loading platform is used to place the wheel rim to be ground, and the unloading platform is used to place the ground wheel rim; the grinding robot arm includes a manipulator and a grinding head, the grinding head is arranged on the manipulator, and the manipulator can drive the grinding head to move in space to grind the wheel rim clamped in the clamping mechanism; the grinding robot arm also includes a clamp, the clamp and the grinding head are arranged at intervals on the manipulator, one manipulator can drive the clamp to move in space to clamp the wheel rim on the loading platform to the support platform, and the other manipulator can drive the clamp to move in space to clamp the wheel rim on the support platform to the unloading platform.

[0009] Preferably, the grinding head includes a first driving member, a base and a grinding disc. The base is fixedly connected to the robot arm, the first driving member is installed in the base, the grinding disc is rotatably connected to the base, and the first driving member is transmission-connected to the grinding disc. The first driving member in one grinding robot arm is used to drive the corresponding grinding disc to rotate counterclockwise, and the first driving member in the other grinding robot arm is used to drive the corresponding grinding disc to rotate clockwise.

[0010] Preferably, the grinding head and the fixture are detachably connected to the manipulator.

[0011] Preferably, the clamp includes a fixed clamp, a movable clamp and a second driving member, and the wheel rim grinding device also includes a mounting plate connected to the manipulator, the fixed clamp and the second driving member are both installed on the mounting plate, the second driving member is transmission-connected to the movable clamp, and the second driving member can drive the movable clamp closer to or away from the fixed clamp.

[0012] Preferably, the grinding robot arm that grinds the rim clockwise grinds from the outer ring on one side of the rim to the inner ring of the rim, and the grinding robot arm that grinds the rim counterclockwise grinds from the inner ring on the other side of the rim to the outer ring.

[0013] Preferably, the clamping mechanism includes a clamping assembly, a supporting assembly and a lifting assembly. The supporting assembly is arranged on the supporting platform, and the supporting assembly is used to support the wheel rim. The lifting assembly is arranged on the supporting platform. The lifting assembly is transmission-connected to the clamping assembly. The clamping assembly is located above the supporting assembly, and the lifting assembly can drive the clamping assembly to press the wheel rim against the supporting assembly.

[0014] Preferably, the lifting assembly includes a first bracket, a cylinder and a moving part, the first bracket is arranged on the support platform, the shell of the cylinder is fixedly connected to the first bracket, the output end of the cylinder passes through the first bracket and is transmission-connected to the moving part, and the clamping assembly is arranged on the moving part; the supporting assembly includes multiple support wheels, and the multiple support wheels are spaced and rotatably arranged on the support platform, and the multiple support wheels are all used to support the outer periphery of the wheel rim; the clamping assembly includes a third driving member and a driving wheel, the third driving member is arranged on the moving part, the driving wheel is rotationally arranged on the bottom wall of the moving part, the third driving member is transmission-connected to the driving wheel, and the third driving member can drive the driving wheel to rotate, and the driving wheel is used to press the wheel rim against the multiple support wheels.

[0015] Preferably, the driving wheel includes a first wheel plate, a second wheel plate and a first rotating shaft, the first wheel plate and the second wheel plate are coaxially arranged on the first rotating shaft, and the positions of the first wheel plate and the second wheel plate relative to the first rotating shaft are adjustable along the axial direction of the first rotating shaft, the first rotating shaft is transmitted to the third driving member, and the first rotating shaft can drive the first wheel plate and the second wheel plate to rotate simultaneously, the first wheel plate and the second wheel plate are used to abut against the wheel rim and drive the wheel rim to rotate; the supporting wheel includes a third wheel plate, a fourth wheel plate and the second rotating shaft, the third wheel plate and the fourth wheel plate are coaxially arranged on the second rotating shaft, and the positions of the third wheel plate and the fourth wheel plate relative to the second rotating shaft are adjustable along the axial direction of the second rotating shaft, the second rotating shaft is transmitted to the third driving member, and the second rotating shaft can drive the first wheel plate and the second wheel plate to rotate simultaneously, the third wheel plate and the fourth wheel plate are used to abut against the wheel rim and drive the wheel rim to rotate.

[0016] On the other hand, a wheel rim grinding platform is provided, which includes a dust collecting mechanism and a wheel rim grinding device according to any of the above technical solutions. The dust collecting mechanism is used to collect debris of the wheel rim ground by the wheel rim grinding device.

[0017] The beneficial effects of the present invention are as follows: a wheel rim grinding device and a grinding platform are provided, wherein the wheel rim grinding device is provided with a clamping mechanism, and when the wheel rim is clamped by the clamping mechanism, the axis of the wheel rim is perpendicular to the supporting direction of the support platform, so that there is space for grinding mechanical arms on both sides of the wheel rim to perform grinding operations, and grinding mechanical arms are respectively provided on both sides of the support platform, thereby realizing double-sided grinding of the wheel rim, and the two grinding mechanical arms grind the wheel rim at the same time, shortening the grinding time of the wheel rim and improving the grinding efficiency; at the same time, one grinding mechanical arm grinds the wheel rim clockwise, and the other grinding mechanical arm grinds the wheel rim counterclockwise, thereby ensuring that the grinding directions of both sides of the wheel rim are the same as the rotation direction of the wheel rim, thereby ensuring the grinding quality during double-sided grinding;

[0018] The wheel rim grinding platform is provided with a sandpaper changing mechanism, which facilitates the timely replacement of the sandpaper on the grinding head to ensure the grinding quality of the wheel rim. At the same time, a dust collection mechanism is provided to collect the debris of the wheel rim ground by the wheel rim grinding device, making it easy to clean the debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram from a first perspective of the wheel rim grinding device and the grinding platform provided by the present invention;

[0020] Figure 2 This is a schematic structural diagram of the wheel rim grinding device and the grinding platform provided by the present invention from a second perspective;

[0021] Figure 3 It is a structural schematic diagram of the grinding robot arm of the wheel rim grinding device provided by the present invention;

[0022] Figure 4 It is a structural schematic diagram of the pressing assembly and the lifting assembly of the wheel rim grinding device provided by the present invention;

[0023] Figure 5 It is a structural schematic diagram of the driving wheel of the wheel rim grinding device provided by the present invention;

[0024] Figure 6 It is a schematic structural diagram of the driven wheel of the wheel rim grinding device provided by the present invention.

[0025] In the figure: 1. Support platform;

[0026] 2. Grinding robot arm; 201. Robot; 202. Grinding head; 2021. First driving member; 2022. Base; 2023. Grinding disc; 203. Clamp; 2031. Fixed clamp; 2032. Moving clamp; 2033. Second driving member;

[0027] 4. Loading platform; 5. Unloading platform; 6. Wheel rim; 7. First bracket; 8. Cylinder; 9. Moving part; 10. Guide rod; 11. Third driving part;

[0028] 12. driving wheel; 121. first wheel; 122. second wheel; 123. first rotating shaft;

[0029] 13. Support wheel; 131. Third wheel; 132. Fourth wheel; 133. Second rotating shaft;

[0030] 14. Mounting plate; 15. Guide member; 16. Limiting member; 17. Sandpaper changing mechanism; 18. Dust collection mechanism. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0032] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0033] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0034] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0035] On the one hand, please refer to Figure 1The present embodiment provides a wheel rim grinding device, which includes: a support platform 1 and two grinding robot arms 2, the support platform 1 is used to support the wheel rim 6, the two grinding robot arms 2 are respectively arranged on both sides of the support platform 1, and the wheel rim grinding device also includes a clamping mechanism, which is arranged on the support platform 1, and the clamping mechanism is used to clamp or loosen the wheel rim 6, and when the wheel rim 6 is clamped by the clamping mechanism, the axis of the wheel rim 6 is perpendicular to the support direction of the support platform 1, one grinding robot arm 2 can grind the wheel rim 6 clockwise, and the other grinding robot arm 2 can grind the wheel rim 6 counterclockwise. With such arrangement, when the wheel rim 6 is clamped by the clamping mechanism, the axis of the wheel rim 6 is perpendicular to the supporting direction of the support platform 1, so that there is space on both sides of the wheel rim 6 for the grinding robot arms 2 to perform grinding operations, and grinding robot arms 2 are respectively arranged on both sides of the support platform 1, thereby realizing double-sided grinding of the wheel rim 6. The two grinding robot arms 2 grind the wheel rim at the same time, shortening the grinding time of the wheel rim 6 and improving the grinding efficiency; at the same time, one grinding robot arm 2 grinds the wheel rim 6 clockwise, and the other grinding robot arm 2 grinds the wheel rim 6 counterclockwise, ensuring that the grinding direction of both sides of the wheel rim 6 is the same as the rotation direction of the wheel rim 6, thereby ensuring the grinding quality during double-sided grinding.

[0036] Alternatively, see Figure 1 and Figure 2 The wheel rim grinding device also includes a loading platform 4 and a unloading platform 5. The loading platform 4 is used to place the wheel rim 6 to be ground, and the unloading platform 5 is used to place the ground wheel rim 6; the grinding robot arm 2 includes a manipulator 201 and a grinding head 202. The grinding head 202 is arranged on the manipulator 201. The manipulator 201 can drive the grinding head 202 to move in space to grind the wheel rim 6 clamped in the clamping mechanism; the grinding robot arm 2 also includes a clamp 203. The clamp 203 and the grinding head 202 are arranged at intervals on the manipulator 201. One manipulator 201 can drive the clamp 203 to move in space to clamp the wheel rim 6 on the loading platform 4 to the support platform 1, and the other manipulator 201 can drive the clamp 203 to move in space to clamp the wheel rim 6 on the support platform 1 to the unloading platform 5. With such a configuration, the grinding robot arm 2 can realize two functions: transporting the wheel rim 6 and grinding the wheel rim 6. During the operation of the device, there is no need to frequently replace the equipment, which simplifies the grinding operation process and improves the grinding efficiency. At the same time, one grinding robot arm 2 can transfer the unground wheel rim 6 from the loading platform 4 to the support platform 1, and the other grinding robot arm 2 can transfer the ground wheel rim 6 from the support platform 1 to the unloading platform 5, thereby realizing the automation of the grinding work and improving the grinding efficiency.

[0037] Alternatively, see Figure 3The grinding head 202 includes a first driving member 2021, a base 2022, and a grinding disc 2023. The base 2022 is fixedly connected to the manipulator 201. The first driving member 2021 is mounted in the base 2022. The grinding disc 2023 is rotatably connected to the base 2022. The first driving member 2021 is in transmission connection with the grinding disc 2023. The first driving member 2021 in one grinding robot arm 2 is used to drive the corresponding grinding disc 2023 to rotate counterclockwise, while the first driving member 2021 in the other grinding robot arm 2 is used to drive the corresponding grinding disc 2023 to rotate clockwise. With this arrangement, during the grinding process, the grinding discs 2023 on both sides of the rim 6 rotate in the same direction as the rim 6, thereby avoiding the problem of increased grinding resistance caused by the grinding discs 2023 rotating in different directions from the rim 6. This allows both sides of the rim 6 to be evenly ground, improving the grinding quality.

[0038] Optionally, the grinding head 202 and the fixture 203 are both detachably connected to the manipulator 201. This arrangement facilitates replacement of the grinding head 202 and the fixture 203.

[0039] Alternatively, see Figure 3 The clamp 203 includes a fixed clamp 2031, a dynamic clamp 2032, and a second driving member 2033. The wheel rim grinding device also includes a mounting plate 14 connected to the manipulator 201. The fixed clamp 2031 and the second driving member 2033 are both mounted on the mounting plate 14. The second driving member 2033 is in transmission connection with the dynamic clamp 2032, and the second driving member 2033 can drive the dynamic clamp 2032 toward or away from the fixed clamp 2031. Specifically, the fixed clamp 2031 is provided with a groove, and the inner ring of the wheel rim 6 can be inserted into the groove, thereby improving the clamping strength of the clamp 203 on the wheel rim 6 and preventing the wheel rim 6 from falling.

[0040] Optionally, the grinding robot arm 2 that grinds the rim 6 clockwise grinds from the outer ring on one side of the rim 6 to the inner ring of the rim 6, and the grinding robot arm 2 that grinds the rim 6 counterclockwise grinds from the inner ring on the other side of the rim 6 to the outer ring. In this arrangement, the two grinding robot arms 2 grind the rim 6, so that both sides of the rim 6 are evenly ground, thereby improving the grinding quality.

[0041] Alternatively, see Figure 4 The clamping mechanism includes a clamping assembly, a support assembly, and a lifting assembly. The support assembly is disposed on the support platform 1 and is used to support the wheel rim 6. The lifting assembly is disposed on the support platform 1 and is transmission-connected to the clamping assembly. The clamping assembly is located above the support assembly, and the lifting assembly can drive the clamping assembly to press the wheel rim 6 against the support assembly. In this arrangement, the lifting assembly drives the clamping assembly to press the wheel rim 6 against the support assembly, so that the wheel rim 6 can be fixed between the clamping assembly and the support assembly, preventing the wheel rim 6 from shifting during the grinding process and affecting the grinding effect.

[0042] Optionally, the lifting assembly includes a first bracket 7, a cylinder 8 and a moving part 9, the first bracket 7 is arranged on the support platform 1, the shell of the cylinder 8 is fixedly connected to the first bracket 7, the output end of the cylinder 8 passes through the first bracket 7 and is transmission-connected to the moving part 9, and the clamping assembly is arranged on the moving part 9; specifically, the first bracket 7 is fixed to the support platform 1, and the cylinder 8 and the moving part 9 are both located above the support platform 1, the cylinder 8 is fixed to the top plate of the first bracket 7, and the output end of the cylinder 8 passes through the top plate of the first bracket 7 and is connected to the moving part 9.

[0043] Optionally, the support assembly includes a plurality of support wheels 13, which are spaced and rotatably arranged on the support platform 1, and the plurality of support wheels 13 are all used to support the periphery of the wheel rim 6; the pressing assembly includes a third driving member 11 and a driving wheel 12, the third driving member 11 is arranged on the mobile member 9, and the driving wheel 12 is rotatably arranged on the bottom wall of the mobile member 9, the third driving member 11 is connected to the driving wheel 12 by transmission, and the third driving member 11 can drive the driving wheel 12 to rotate, and the driving wheel 12 is used to press the wheel rim 6 against the plurality of support wheels 13. In this way, the relative position of the wheel rim 6 and the support platform 1 can be locked by cooperating with the plurality of support wheels 13 and the plurality of driving wheels 12.

[0044] Specifically, the plurality of driving wheels 12 are connected via a pulley assembly, the third driving member 11 drives the pulley assembly to move, and the plurality of driving wheels 12 drive the wheel rim 6 to rotate, so that the wheel rim 6 is evenly polished.

[0045] Preferably, the lifting assembly further includes a guide rod 10 and a guide hole provided on the top plate of the first bracket 7. The guide rod 10 moves along the length direction of the guide hole, thereby improving the accuracy of the movement of the movable member 9. Specifically, the lifting assembly is provided with four guide rods 10 and two limit members 16. The first bracket 7 is provided with four guide holes. The four guide holes are provided in a one-to-one correspondence with the four guide rods 10. One end of the four guide rods 10 is respectively connected to the four corners of the movable member 9, which can improve the stability of the movable member 9. The other ends of the two guide rods 10 at both ends of the movable member 9 are respectively connected to the limit members 16. The limit members 16 can be abutted against the top plate of the first bracket 7 to prevent the movable member 9 from descending too far.

[0046] Optionally, the wheel rim grinding device further includes four guide members 15 , which are arranged in one-to-one correspondence with the four guide holes. The guide members 15 are provided with through holes, which are opposite to the guide holes. The limiting members 16 can abut against the guide members 15 .

[0047] Alternatively, see Figure 5The driving wheel 12 includes a first wheel piece 121, a second wheel piece 122, and a first rotating shaft 123. The first wheel piece 121 and the second wheel piece 122 are coaxially arranged on the first rotating shaft 123, and the positions of the first wheel piece 121 and the second wheel piece 122 relative to the first rotating shaft 123 are adjustable along the axial direction of the first rotating shaft 123. The first rotating shaft 123 is transmission-connected to the third driving member 11, and the first rotating shaft 123 can drive the first wheel piece 121 and the second wheel piece 122 to rotate simultaneously. The first wheel piece 121 and the second wheel piece 122 are used to abut against the wheel rim 6 and drive the wheel rim 6 to rotate. Specifically, splines are provided on the first wheel piece 121 and the second wheel piece 122, and a spline groove is provided on the first rotating shaft 123 along the length direction of the first rotating shaft 123. The splines of the first wheel piece 121 and the second wheel piece 122 are both slidably connected to the spline groove. In this arrangement, by adjusting the positions of the first wheel 121 and the second wheel 122 relative to the first rotating shaft 123, the distance between the first wheel 121 and the second wheel 122 is adjusted to adapt to the rims 6 of different widths to be pressed against the driving wheel 12, thereby improving the versatility of the device.

[0048] Optionally, the driving wheel 12 is provided with a plurality of first limiting holes, some of which are provided on the circumferential surface of the first wheel plate 121 and extend radially along the first wheel plate 121, while another portion of the first limiting holes are provided on the circumferential surface of the second wheel plate 122 and extend radially along the second wheel plate 122. The driving wheel 12 further includes a plurality of first locking bolts, which pass through the plurality of first limiting holes in a one-to-one correspondence and abut against the first rotating shaft 123. In this arrangement, the first locking bolts can lock or unlock the positions of the first wheel plate 121 and the second wheel plate 122 relative to the first rotating shaft 123, thereby preventing the first wheel plate 121 and the second wheel plate 122 from moving relative to the first rotating shaft 123 during the grinding process, causing the fixing of the driving wheel 12 to the rim 6 to loosen, thereby affecting the grinding effect. In other embodiments, the first locking bolts can also be replaced by locking pins, locking screws, etc., which are not specifically limited in this embodiment and the accompanying drawings.

[0049] Furthermore, two limiting rings are coaxially disposed on the first rotating shaft 123. Both limiting rings are fixed relative to the first rotating shaft 123, and the first wheel 121 and the second wheel 122 are disposed between the two limiting rings. This arrangement limits the adjustment range of the positions of the first wheel 121 and the second wheel 122 relative to the first rotating shaft 123, preventing the first wheel 121 and the second wheel 122 from falling off the first rotating shaft 123 due to excessive adjustment.

[0050] Alternatively, see Figure 6The support wheel 13 includes a third wheel piece 131, a fourth wheel piece 132, and a second rotating shaft 133. The third wheel piece 131 and the fourth wheel piece 132 are coaxially arranged on the second rotating shaft 133. Along the axial direction of the second rotating shaft 133, the positions of the third wheel piece 131 and the fourth wheel piece 132 relative to the second rotating shaft 133 are adjustable. The second rotating shaft 133 is transmission-connected to the third driving member 11, and the second rotating shaft 133 can drive the third wheel piece 131 and the fourth wheel piece 132 to rotate simultaneously. The third wheel piece 131 and the fourth wheel piece 132 are used to abut against the wheel rim 6 and drive the wheel rim 6 to rotate. Specifically, the third wheel piece 131 and the fourth wheel piece 132 are both provided with splines, and a spline groove is provided on the second rotating shaft 133 along the length direction of the second rotating shaft 133. The splines of the third wheel piece 131 and the fourth wheel piece 132 are both slidably connected to the spline groove. In this arrangement, by adjusting the positions of the third wheel piece 131 and the fourth wheel piece 132 relative to the second rotating shaft 133, the distance between the third wheel piece 131 and the fourth wheel piece 132 is adjusted, so that the support wheel 13 can support rims 6 of different widths, thereby improving the versatility of the device.

[0051] Specifically, the support wheel 13 is provided with a plurality of second limiting holes. Some of the second limiting holes are provided on the circumferential surface of the third wheel plate 131 and extend radially along the third wheel plate 131, while another portion of the second limiting holes are provided on the circumferential surface of the fourth wheel plate 132 and extend radially along the fourth wheel plate 132. The support wheel 13 also includes a plurality of second locking bolts, which pass through the plurality of second limiting holes in a one-to-one correspondence and abut against the second rotation axis 133. In this arrangement, the second locking bolts can lock or unlock the positions of the third and fourth wheel plates 131, 132 relative to the second rotation axis 133, preventing the third and fourth wheel plates 131, 132 from moving relative to the second rotation axis 133 during the grinding process, thereby loosening the support of the support wheel 13 on the rim 6 and affecting the grinding effect. In other embodiments, the second locking bolts can also be replaced by locking pins, locking screws, etc., which are not specifically limited in this embodiment and the accompanying drawings.

[0052] Furthermore, two limiting rings are coaxially mounted on the second rotating shaft 133. Both limiting rings are fixed relative to the second rotating shaft 133, and the third wheel 131 and the fourth wheel 132 are positioned between the two limiting rings. This arrangement limits the adjustment range of the third wheel 131 and the fourth wheel 132 relative to the second rotating shaft 133, preventing the third wheel 131 and the fourth wheel 132 from falling off the second rotating shaft 133 due to excessive adjustment.

[0053] On the other hand, this embodiment provides a rim grinding platform, which includes a dust collection mechanism 18 and the rim grinding device described above. The dust collection mechanism 18 is used to collect debris from the rim 6 ground by the rim grinding device. Specifically, the dust collection mechanism 18 includes a dust collection hopper disposed below the support wheel 13. The debris from the rim 6 ground by the rim grinding device can fall into the dust collection hopper, making it easier to clean the debris.

[0054] Preferably, the wheel rim grinding platform further includes two sandpaper changing mechanisms 17, which are arranged on both sides of the support platform 1, and the two sandpaper changing mechanisms 17 are used to replace the sandpaper on the two grinding heads 202 respectively. Specifically, the sandpaper is attached to the grinding disc 2023 by Velcro. When the sandpaper needs to be replaced, the manipulators 201 of the two grinding robot arms move to the corresponding sandpaper changing mechanism 17 to replace the sandpaper on the grinding disc 2023 to ensure the grinding effect of the device. The sandpaper changing mechanism 17 can be an automatic sandpaper changing mechanism 17 or a manual sandpaper changing mechanism 17. The specific structure of the sandpaper changing mechanism 17 is existing technology, and those skilled in the art can set it according to needs, and this embodiment will not be repeated.

[0055] The steps of grinding the rim 6 by the rim grinding device are as follows:

[0056] S1: A grinding robot arm 2 moves to the loading platform 4 to grab the wheel rim 6 to be ground;

[0057] S2: After the grabbing is completed, the wheel rim 6 is moved to the support platform 1;

[0058] S3: After the wheel rim 6 is fixed, both grinding robot arms 2 move to the grinding waiting position of the support platform 1;

[0059] S4: Adjust the positions of the first wheel 121 and the second wheel 122 relative to the first rotation axis 123 so that the first wheel 121 and the second wheel 122 abut against the rim 6; and adjust the positions of the third wheel 131 and the fourth wheel 132 relative to the second rotation axis 133 so that the third wheel 131 and the fourth wheel 132 abut against the rim 6;

[0060] S5: One grinding robot arm 2 grinds clockwise from the outer ring of the rim 6 to the inner ring of the rim 6, and the other grinding robot arm 2 grinds counterclockwise from the inner ring of the rim 6 to the outer ring of the rim 6;

[0061] S6: After the grinding is completed, another grinding robot arm 2 removes the wheel rim 6 from the support platform 1 and moves it to the unloading platform 5.

[0062] Optionally, the step of grinding the wheel rim 6 by the wheel rim grinding device also includes: S0: manually placing the material cart full of wheel rims 6 on the loading platform 4, and placing the empty material cart on the unloading platform 5.

[0063] Optionally, the step of grinding the wheel rim 6 by the wheel rim grinding device further includes: S7: after the material cart on the unloading platform 5 is full, the fully loaded material cart is manually pushed out.

[0064] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A wheel rim grinding device, comprising: A support platform (1) and two grinding mechanical arms (2), wherein the support platform (1) is used to support a wheel rim (6), and the two grinding mechanical arms (2) are respectively arranged on both sides of the support platform (1), characterized in that the wheel rim grinding device also includes a clamping mechanism, the clamping mechanism is arranged on the support platform (1), the clamping mechanism is used to clamp or release the wheel rim (6), and when the wheel rim (6) is clamped by the clamping mechanism, the axis of the wheel rim (6) is perpendicular to the supporting direction of the support platform (1), one of the grinding mechanical arms (2) can grind the wheel rim (6) clockwise, and the other of the grinding mechanical arms (2) can grind the wheel rim (6) counterclockwise; The wheel rim grinding device further comprises a loading platform (4) and a unloading platform (5), wherein the loading platform (4) is used to place the wheel rim (6) to be ground, and the unloading platform (5) is used to place the wheel rim (6) after being ground; The grinding robot arm (2) comprises a robot arm (201) and a grinding head (202), wherein the grinding head (202) is arranged on the robot arm (201), and the robot arm (201) can drive the grinding head (202) to move in space to grind the wheel rim (6) clamped in the clamping mechanism; The grinding robot arm (2) further comprises a clamp (203), wherein the clamp (203) and the grinding head (202) are spaced apart on the robot arm (201), and one of the robot arms (201) can drive the clamp (203) to move in space so as to clamp the wheel rim (6) on the loading platform (4) to the support platform (1), and the other robot arm (201) can drive the clamp (203) to move in space so as to clamp the wheel rim (6) on the support platform (1) to the unloading platform (5); The grinding robot arm (2) that grinds the wheel rim (6) clockwise grinds from the outer ring on one side of the wheel rim (6) to the inner ring of the wheel rim (6), and the grinding robot arm (2) that grinds the wheel rim (6) counterclockwise grinds from the inner ring on the other side of the wheel rim (6) to the outer ring.

2. The wheel rim grinding device according to claim 1, characterized in that: The grinding head (202) comprises a first driving member (2021), a base (2022) and a grinding disc (2023); the base (2022) is fixedly connected to the manipulator (201); the first driving member (2021) is installed in the base (2022); the grinding disc (2023) is rotationally connected to the base (2022); and the first driving member (2021) is transmission-connected to the grinding disc (2023); the first driving member (2021) in one of the grinding manipulator arms (2) is used to drive the corresponding grinding disc (2023) to rotate counterclockwise, and the first driving member (2021) in the other of the grinding manipulator arms (2) is used to drive the corresponding grinding disc (2023) to rotate clockwise.

3. The wheel rim grinding device according to claim 1, characterized in that: The grinding head (202) and the clamp (203) are both detachably connected to the manipulator (201).

4. The wheel rim grinding device according to claim 1, characterized in that: The clamp (203) includes a fixed clamp (2031), a dynamic clamp (2032) and a second driving member (2033); the wheel rim grinding device also includes a mounting plate (14) connected to the manipulator (201); the fixed clamp (2031) and the second driving member (2033) are both mounted on the mounting plate (14); the second driving member (2033) is transmission-connected to the dynamic clamp (2032), and the second driving member (2033) can drive the dynamic clamp (2032) to move closer to or away from the fixed clamp (2031).

5. The wheel rim grinding device according to claim 1, characterized in that: The clamping mechanism comprises a pressing assembly, a supporting assembly and a lifting assembly, wherein the supporting assembly is arranged on the supporting platform (1) and is used to support the wheel rim (6), and the lifting assembly is arranged on the supporting platform (1). The lifting assembly is in transmission connection with the pressing assembly, the pressing assembly is located above the supporting assembly, and the lifting assembly can drive the pressing assembly to press the wheel rim (6) against the supporting assembly.

6. The wheel rim grinding device according to claim 5, characterized in that: The lifting assembly comprises a first bracket (7), a cylinder (8) and a moving part (9), wherein the first bracket (7) is arranged on the support platform (1), the shell of the cylinder (8) is fixedly connected to the first bracket (7), the output end of the cylinder (8) passes through the first bracket (7) and is transmission-connected to the moving part (9), and the pressing assembly is arranged on the moving part (9); The support assembly comprises a plurality of support wheels (13), the plurality of support wheels (13) being rotatably arranged at intervals on the support platform (1), and the plurality of support wheels (13) being used to support the outer periphery of the wheel rim (6); The pressing assembly includes a third driving member (11) and a driving wheel (12), wherein the third driving member (11) is arranged on the movable member (9), and the driving wheel (12) is rotatably arranged on the bottom wall of the movable member (9). The third driving member (11) is connected to the driving wheel (12) in a transmission manner, and the third driving member (11) can drive the driving wheel (12) to rotate. The driving wheel (12) is used to press the wheel rim (6) against the plurality of supporting wheels (13).

7. The wheel rim grinding device according to claim 6, characterized in that: The driving wheel (12) comprises a first wheel piece (121), a second wheel piece (122) and a first rotating shaft (123); the first wheel piece (121) and the second wheel piece (122) are coaxially arranged on the first rotating shaft (123); and along the axial direction of the first rotating shaft (123), the positions of the first wheel piece (121) and the second wheel piece (122) relative to the first rotating shaft (123) are adjustable; the first rotating shaft (123) is transmission-connected to the third driving member (11), and the first rotating shaft (123) can drive the first wheel piece (121) and the second wheel piece (122) to rotate simultaneously; the first wheel piece (121) and the second wheel piece (122) are used to abut against the wheel rim (6) and drive the wheel rim (6) to rotate; The supporting wheel (13) comprises a third wheel piece (131), a fourth wheel piece (132) and a second rotating shaft (133); the third wheel piece (131) and the fourth wheel piece (132) are coaxially arranged on the second rotating shaft (133); and along the axial direction of the second rotating shaft (133), the positions of the third wheel piece (131) and the fourth wheel piece (132) relative to the second rotating shaft (133) are adjustable; the second rotating shaft (133) is transmission-connected to the third driving member (11), and the second rotating shaft (133) can drive the third wheel piece (131) and the fourth wheel piece (132) to rotate simultaneously; the third wheel piece (131) and the fourth wheel piece (132) are used to abut against the wheel rim (6) and drive the wheel rim (6) to rotate.

8. A wheel rim grinding platform, characterized in that: The wheel rim grinding platform comprises a dust collecting mechanism (18) and the wheel rim grinding device according to any one of claims 1 to 7, wherein the dust collecting mechanism (18) is used to collect debris of the wheel rim (6) ground by the wheel rim grinding device.

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