Grinding device

Abstract

The utility model belongs to the technical field of bicycle manufacturing, and particularly relates to a grinding device which comprises a grinding head, a driving mechanism and an adjusting mechanism. The driving mechanism is provided with a multi-degree-of-freedom moving driving end, the grinding head is slidably arranged at the driving end, and the driving mechanism is used for driving the grinding head to move along different curved surfaces of the front fork; the adjusting mechanism is connected with the grinding head and used for applying acting force towards the front fork to the grinding head so that the actual grinding force applied by the grinding head to the front fork can be kept at a preset value. Before grinding, the acting force is applied to the front fork through the adjusting mechanism, so that the actual grinding force borne by the front fork can be kept at the preset value, it can be guaranteed that the grinding force borne by all positions of the front fork in the grinding process is kept unchanged, the grinding uniformity of all positions of the front fork can be guaranteed, and local over-grinding is avoided.

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] The front fork can change the direction of the front wheel and plays a guiding role in the bicycle. In order to reduce the overall weight of the bicycle, lightweight and high-tensile-strength carbon fiber is often used to form the fork through molding and blowing. After molding, there will be differences in different parts of the product surface. Therefore, the front fork needs to be ground after molding.

[0003] Traditional fork grinding processes rely heavily on manual labor or fixed-path mechanical processing equipment. During the grinding process, due to the complex curved shape of the fork, it is difficult to ensure the uniformity of grinding in various parts of the fork, which can easily lead to localized over-grinding.

[0004] Therefore, the above problems urgently need to be solved. Utility Model Content

[0005] The purpose of this invention is to provide a grinding device to ensure uniform grinding of all parts of the fork and avoid local over-grinding.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A grinding device for grinding a fork, comprising:

[0008] A grinding head, used for grinding the fork;

[0009] The drive mechanism has a drive end with multiple degrees of freedom of movement, and the grinding head is slidably disposed on the drive end. The drive mechanism is used to drive the grinding head to move along different curved surfaces of the fork.

[0010] An adjustment mechanism is connected to the grinding head and is used to apply a force toward the fork to the grinding head so that the actual grinding force applied by the grinding head to the fork is kept at a preset value.

[0011] Preferably, the drive end is provided with a receiving groove, and the grinding head includes a base that is adapted to slide in the receiving groove;

[0012] The adjustment mechanism includes an air source, an air pipeline, and a pressure regulating valve. The air source can deliver compressed gas between the receiving tank and the base through the air pipeline to apply force to the grinding head. The pressure regulating valve is located in the air pipeline to maintain a preset pressure value between the receiving tank and the base.

[0013] Preferably, the bottom of the receiving tank is vertically provided with an output pipe connected to an air passage pipe, and the output pipe is arranged in a column shape.

[0014] A sealing column adapted to the sealing pipeline is vertically arranged on the top of the base, and the sealing column is movably sleeved in the output pipeline to form a sealing cavity communicated with the air pipeline.

[0015] Preferably, an oblong hole is arranged on the side wall of one of the accommodation groove and the base, and the length direction of the oblong hole is the same as the sliding direction of the grinding head;

[0016] A limiting column is arranged on the side wall of the other of the accommodation groove and the base, and the limiting column can cooperate with the oblong hole to limit the movement stroke of the grinding head.

[0017] Preferably, a slide rail is arranged on the side wall of one of the accommodation groove and the base, and the length direction of the slide rail is the same as the sliding direction of the grinding head;

[0018] A chute adapted to the slide rail is arranged on the side wall of the other of the accommodation groove and the base.

[0019] Preferably, one slide rail and one chute form a set of sliding structures, and at least two sets of sliding structures are evenly arranged between the accommodation groove and the base.

[0020] Preferably, the shape of the slide rail is preferably "匸"-shaped.

[0021] Preferably, a plurality of guide columns are arranged between the base and the accommodation groove, and the length directions of the plurality of guide columns are the same as the sliding direction of the grinding head.

[0022] Preferably, four guide columns are arranged.

[0023] Preferably, the base is square.

[0024] The beneficial effects of the present utility model:

[0025] For the grinding device of the present utility model, before grinding, a force is applied to the front fork through the adjusting mechanism, so that the actual grinding force received by the front fork can be maintained at a preset value, thereby ensuring that the grinding force received at each part of the front fork remains unchanged during the grinding process, and further ensuring the grinding uniformity at each position of the front fork and avoiding local over-grinding. Description of the drawings

[0026] Figure 1 is a schematic structural diagram of the driving end and the grinding head in an embodiment of the present utility model;

[0027] Figure 2 is Figure 1 a cross-sectional view of

[0028] Figure 3 This is a schematic diagram of the grinding head in an embodiment of this utility model;

[0029] Figure 4 This is a schematic diagram of the grinding device in an embodiment of this utility model;

[0030] Figure 5 This is a schematic diagram of the lifting mechanism and the front fork in an embodiment of this utility model.

[0031] In the picture:

[0032] 100. Front fork; 110. Top tube; 120. Down tube;

[0033] 1. Grinding head; 11. Base; 12. Sealing post; 13. Oblong hole; 14. Track; 15. Pneumatic motor; 16. Grinding seat;

[0034] 2. Drive mechanism; 21. Drive end; 211. Receiving groove; 212. Output pipe; 213. Limiting post;

[0035] 31. Gas line connector;

[0036] 4. Clamping mechanism; 5. Rotating mechanism; 6. Platform; 7. Base; 8. Baffle;

[0037] 9. Lifting mechanism; 91. Lifting cylinder; 92. Lifting rod. Detailed Implementation

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] In the traditional fork grinding process, due to the complex curved shape of the fork, the grinding force applied to different positions will vary, which can easily lead to local over-grinding or under-grinding. Therefore, this embodiment aims to propose a grinding device to dynamically adjust the grinding force during the grinding process, thereby ensuring the grinding uniformity of all positions of the fork.

[0043] Specifically, please refer to Figures 1 to 5 The grinding device includes a grinding head 1, a drive mechanism 2, and an adjustment mechanism. The grinding head 1 is used to grind the fork 100. The drive mechanism 2 has a drive end 21 with multiple degrees of freedom of movement. The grinding head 1 is slidably disposed on the drive end 21. The drive mechanism 2 is used to drive the grinding head 1 to move along different curved surfaces of the fork 100. The adjustment mechanism is connected to the grinding head 1 and is used to apply a force toward the fork 100 to the grinding head 1 so that the actual grinding force applied by the grinding head 1 to the fork 100 is maintained at a preset value. The preset value is set according to the grinding amount of the fork 100 and is not specifically limited here.

[0044] Understandably, before grinding, by adjusting the mechanism to apply force to the fork 100, the actual grinding force on the fork 100 can be kept at a preset value, thereby ensuring that the grinding force on all parts of the fork remains unchanged during the grinding process, thus ensuring the uniformity of grinding at all positions of the fork 100 and avoiding local over-grinding.

[0045] In this embodiment, please refer to Figure 2 and Figure 3The drive end 21 has a receiving groove 211, and the grinding head 1 includes a square base 11 that slides and adapts to the receiving groove 211. The adjustment mechanism includes an air source, an air passage, and a pressure regulating valve. The air source can supply compressed gas to the space between the receiving groove 211 and the base 11 through the air passage to apply force to the grinding head 1. The pressure regulating valve is located in the air passage to maintain a preset pressure value between the receiving groove 211 and the base 11. It can be understood that the force applied to the grinding head 1 by the adjustment mechanism is buoyancy. Under the action of the pressure regulating valve, the pressure between the receiving groove 211 and the base 11 can be maintained at a preset value. That is, under the action of the pressure regulating valve, the gas pressure between the receiving groove 211 and the base 11 can be kept constant, thereby ensuring the uniformity of grinding at all points. Furthermore, the compressed gas and the grinding head 1 have flexible contact, thus avoiding rigid collisions between the grinding head 1 and the adjustment mechanism when switching to different curved surfaces. This allows the grinding device to be applicable to more complex working conditions and improves its applicability.

[0046] The gas pipeline is divided into a first pipeline and a second pipeline. The first pipeline is located at the drive end 21, and one end is connected to the receiving tank 211. The other end is connected to one end of the second pipeline through the gas pipeline connector 31. The other end of the second pipeline is connected to the gas source. The pressure regulating valve can be installed on the first pipeline or the second pipeline.

[0047] Of course, in some other feasible embodiments, the adjustment mechanism can also be a magnetic levitation structure, using a magnetic field to levitate the grinding head 1, and controlling the levitation gap and contact force by adjusting the magnetic field strength, which will not be elaborated here.

[0048] Furthermore, an output pipe 212, connected to an air passage, is vertically arranged at the bottom of the receiving tank 211. The output pipe 212 is cylindrical. A sealing column 12, adapted to the sealing pipe, is vertically arranged at the top of the base 11. The sealing column 12 is movably fitted inside the output pipe 212 to form a sealed cavity connected to the air passage. It can be understood that during the grinding process, the sealing column 12 is similar to a piston sliding inside the output pipe 212 to ensure the sealing of the compressed gas, thereby ensuring precise control of the compressed gas pressure in the air passage.

[0049] In addition, the cooperation between the output pipe 212 and the sealing column 12 can also guide the grinding head 1 to slide on the drive end 21, so as to avoid the position deviation of the grinding head 1 during the grinding process, thereby further ensuring the uniformity of grinding at all positions of the fork 100.

[0050] Furthermore, a slide rail is provided on the side wall of one of the receiving groove 211 and the base 11, and the length direction of the slide rail is the same as the sliding direction of the grinding head 1; a sliding groove adapted to the slide rail is provided on the side wall of the other of the receiving groove 211 and the base 11. It can be understood that, under the cooperation of the sliding groove and the slide rail, the stability of the grinding head 1 during movement can be ensured.

[0051] Among them, one slide rail and one sliding groove form a set of sliding structures, and at least two sets of sliding structures are evenly arranged between the receiving groove 211 and the base 11. In this embodiment, the number of sliding structures is preferably two, and they are distributed on opposite sides of the base.

[0052] In addition, the shape of the slide rail is preferably "匸"-shaped. The "匸"-shaped slide rail can increase the contact area between the slide rail and the sliding groove, thereby further ensuring the stability of the grinding head 1 during movement.

[0053] Furthermore, a plurality of guide posts are provided between the base 11 and the receiving groove 211, and the length direction of the plurality of guide posts is the same as the sliding direction of the grinding head 1. Among them, the number of guide posts is preferably four. Under the combined action of the guide posts, the output pipe 212, the sealing column 12, the slide rail and the sliding groove, the connection strength between the grinding head 1 and the driving end 21 can be ensured, so that the grinding device is suitable for different grinding requirements of different intensities. The guide posts are preferably four, and the four guide posts are respectively located at the four corners of the base 11.

[0054] In this embodiment, an oblong hole 13 is provided on the side wall of one of the receiving groove 211 and the base 11, and the length direction of the oblong hole 13 is the same as the sliding direction of the grinding head 1; a limiting column 213 is provided on the side wall of the other of the receiving groove 211 and the base 11, and the limiting column 213 can cooperate with the oblong hole 13 to limit the movement stroke of the grinding head 1. It can be understood that, under the cooperation of the oblong hole 13 and the limiting column 213, the movement stroke of the grinding head 1 can be limited, thereby avoiding the grinding head 1 exceeding the preset stroke during grinding, and further improving the safety performance.

[0055] Preferably, two slide rails and two slide grooves are provided. The two slide rails are located on opposite side walls of the base 11 and are slidably connected to their respective slide grooves. Each slide rail is provided with an elongated hole 13. Limiting posts 213 are provided on the side wall of the receiving groove 211. The number of limiting posts 213 can be two or four. When there are two limiting posts 213, the two limiting posts 213 are respectively located on the two side walls of the receiving groove 211, and the two limiting posts 213 are respectively located at both ends of the travel stroke of the grinding head 1. When there are four limiting posts 213, the two limiting posts 213 form a set of limiting structures. The two sets of limiting structures are respectively located on the two side walls of the receiving groove 211, and in any limiting structure, the two limiting posts 213 are respectively located at both ends of the travel stroke of the grinding head 1.

[0056] In this embodiment, the grinding head 1 includes a pneumatic motor 15, a grinding seat 16, and a sponge. The pneumatic motor 15 is disposed inside the base 11 and has a rotating shaft that rotates around its own axis. The grinding seat 16 is disposed on the rotating shaft and is located outside the base 11. The sponge is fixedly disposed on the grinding seat 16 and can abut against the fork 100. It is understood that during the grinding process, the pneumatic motor 15 can drive the grinding seat 16 to rotate, thereby driving the sponge to rotate. The sponge can grind the fork 100. Under the action of the driving mechanism 2, the grinding head 1 can be driven to move along different curved surfaces of the fork 100 to complete the grinding of different curved surfaces. The driving mechanism 2 is preferably a multi-axis robot as described in the prior art. Using sponge as the grinding material to grind the fork 100 has good flexibility and can well conform to various curved surfaces and irregular shapes on the fork 100, achieving uniform grinding.

[0057] In addition, please see Figure 4 The grinding device also includes a clamping mechanism 4 and a rotating mechanism 5. The clamping mechanism 4 clamps the fork 100; the rotating mechanism 5 has a rotating end for connecting to the clamping mechanism 4, and is used to control the fork 100 to rotate by a preset angle. It is understood that the rotating mechanism 5 can control the fork 100 to rotate by a preset angle, thereby ensuring that all surfaces of the fork 100 are ground. After multiple rotations, the fork 100 can achieve a 360° rotation, thus ensuring comprehensive grinding. Specifically, the preset angle controlled by the rotating mechanism 5 is 45°, and after 8 rotations, a 360° rotation is achieved. In some other feasible embodiments, the preset angle can also be 30°, 40°, or 60°, etc., and no specific limitation is made here.

[0058] The clamping mechanism 4 is preferably a three-jaw chuck, which can clamp the upper tube 110 of the fork 100. The rotating mechanism 5 is preferably a hollow rotary motor, which has a hollow rotor as the rotating end. The hollow rotor is coaxially arranged with the upper tube 110 clamped to the three-jaw chuck to avoid deviation of the fork 100 during rotation and further ensure the uniformity of grinding at each position of the fork 100.

[0059] Furthermore, a clamping mechanism 4 and a rotating mechanism 5 form a set of clamping components, and the grinding device is provided with at least two sets of clamping components. The grinding device also includes a platform 6 and a base 7. The platform 6 is divided into a grinding area and a loading / unloading area, and the drive mechanism 2 is located in the grinding area. The base 7 is rotatably mounted on the platform 6, and all clamping components are located on the base 7. Each clamping component can be moved sequentially from the loading / unloading area to the grinding area. It can be understood that the operator installs the fork 100 onto the clamping mechanism 4 in the loading / unloading area, and then rotates the base 7 by rotating the motor or other rotating structures to move the fork 100 to the grinding area. Under the action of the drive mechanism 2 and the grinding head 1, the fork 100 can be ground. After grinding, the base 7 is rotated again to rotate the fork 100 to the loading / unloading area to complete the unloading. The whole process can reduce the loading / unloading time, thereby improving the grinding efficiency.

[0060] Furthermore, baffles 8 are provided between each clamping component, and the baffles 8 are fixed to the base 7. It is understood that debris will be generated during the grinding process, and the baffles 8 can block the debris in the grinding area, thereby ensuring the cleanliness of the loading and unloading area.

[0061] In addition, the base 7 is preferably elongated, the rotating motor is connected to the middle of the base 7, and when the front fork 100 is installed in the clamping mechanism 4, it can extend to the outside of the base 7, thereby preventing debris from falling onto the base 7 and further ensuring the cleanliness of the loading and unloading area.

[0062] In this embodiment, please refer to Figure 5 The grinding device also includes a lifting mechanism 9, which is disposed on the platform 6 and located in the loading and unloading area. The lifting mechanism 9 is used to apply a lifting force to the fork 100 to be clamped by the clamping mechanism 4, so that the clamping mechanism 4 can smoothly clamp the fork 100. It can be understood that when the fork 100 is installed in the loading and unloading area, the lifting mechanism 9 can apply a lifting force to the fork 100, thereby enabling the fork 100 to be in a stable state during installation. This avoids uneven weight distribution or irregular shape of the fork 100, which could lead to instability during installation. It also ensures the consistency of different forks 100 when clamped, thus helping to ensure the consistency of different forks 100 during the grinding process.

[0063] For example, the lifting mechanism 9 includes a lifting cylinder 91 and a lifting rod 92. The lifting cylinder 91 is disposed on the platform 6, and the lifting rod 92 is horizontally disposed at the piston rod end of the lifting cylinder 91. The lifting cylinder 91 is used to lift the lifting rod 92 to a preset height. It can be understood that under the action of the lifting cylinder 91, the lifting rod 92 can be moved to a preset height to abut against the two lower tubes 120 of the front fork 100, thereby enabling the front fork 100 to be stably installed on the clamping mechanism 4, and also ensuring the consistency of different front forks 100 during the installation process.

[0064] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A grinding device for grinding a fork (100), characterized in that, Comprising: A grinding head (1) for grinding the front fork (100); A driving mechanism (2) having a driving end (21) with multiple degrees of freedom of movement, the grinding head (1) being slidably arranged on the driving end (21), and the driving mechanism (2) being used to drive the grinding head (1) to move along different curved surfaces of the front fork (100); An adjusting mechanism, connected to the grinding head (1) and used to apply a force towards the front fork (100) to the grinding head (1), so that the actual grinding force applied by the grinding head (1) to the front fork (100) is maintained at a preset value.

2. The polishing apparatus according to claim 1, wherein The driving end (21) is provided with a receiving groove (211), and the grinding head (1) includes a base (11) that is adapted to slide in the receiving groove (211); The adjusting mechanism includes a gas source, a gas pipeline and a pressure regulating valve. The gas source can输送compressed gas between the receiving groove (211) and the base (11) through the gas pipeline to apply a force to the grinding head (1), and the pressure regulating valve is arranged on the gas pipeline to keep the pressure between the receiving groove (211) and the base (11) at a preset pressure value.

3. The abrading device of claim 2, wherein, An output pipeline (212) connected to the gas pipeline is vertically arranged at the bottom of the receiving groove (211), and the output pipeline (212) is arranged in a columnar shape; [[ID=⑦]]A sealing column (12) adapted to the sealing pipeline is vertically arranged on the top of the base (11), and the sealing column (12) is movably sleeved in the output pipeline (212) to form a sealing cavity connected to the gas pipeline.

4. The abrading device of claim 2, wherein, A long circular hole (13) is arranged on the side wall of one of the receiving groove (211) and the base (11), and the length direction of the long circular hole (13) is the same as the sliding direction of the grinding head (1); A limiting column (213) is arranged on the side wall of the other of the receiving groove (211) and the base (11), and the limiting column (213) can cooperate with the long circular hole (13) to limit the movement stroke of the grinding head (1).

5. The abrading device of claim 2, wherein, A slide rail is arranged on the side wall of one of the receiving groove (211) and the base (11), and the length direction of the slide rail is the same as the sliding direction of the grinding head (1); A sliding groove adapted to the slide rail is arranged on the side wall of the other of the receiving groove (211) and the base (11).

6. The abrading device of claim 5, wherein, One slide rail and one sliding groove form a set of sliding structures, and at least two sets of sliding structures are evenly arranged between the receiving groove (211) and the base (11).

7. The abrading device of claim 6, wherein, The shape of the slide rail is preferably "匸" - shaped.

8. The abrading device of claim 2, wherein, Multiple guide columns are arranged between the base (11) and the receiving groove (211), and the length directions of the multiple guide columns are the same as the sliding direction of the grinding head (1).

9. The abrading device of claim 8, wherein, Four guide columns are provided.

10. The abrading device of claim 2, wherein, The base (11) is square. It should be noted that in the above translation, there is an error in the original text in . "输送compressed gas" should be "transport compressed gas". And in [[ID=⑦]], the tag "⑦" should be "7" in English. The corrected translation is as follows: Comprising: A grinding head (1) for grinding the front fork (100); A driving mechanism (2) having a driving end (21) with multiple degrees of freedom of movement, the grinding head (1) being slidably arranged on the driving end (21), and the driving mechanism (2) being used to drive the grinding head (1) to move along different curved surfaces of the front fork (100); An adjusting mechanism, connected to the grinding head (1) and used to apply a force towards the front fork (100) to the grinding head (1), so that the actual grinding force applied by the grinding head (1) to the front fork (100) is maintained at a preset value. The driving end (21) is provided with a receiving groove (211), and the grinding head (1) includes a base (11) that is adapted to slide in the receiving groove (211); The adjusting mechanism includes a gas source, a gas pipeline and a pressure regulating valve. The gas source can transport compressed gas between the receiving groove (211) and the base (11) through the gas pipeline to apply a force to the grinding head (1), and the pressure regulating valve is arranged on the gas pipeline to keep the pressure between the receiving groove (211) and the base (11) at a preset pressure value. An output pipeline (212) connected to the gas pipeline is vertically arranged at the bottom of the receiving groove (211), and the output pipeline (212) is arranged in a columnar shape; A sealing column (12) adapted to the sealing pipeline is vertically arranged on the top of the base (11), and the sealing column (12) is movably sleeved in the output pipeline (212) to form a sealing cavity connected to the gas pipeline. A long circular hole (l3) is arranged on the side wall of one of the receiving groove (211) and the base (11), and the length direction of the long circular hole (13) is the same as the sliding direction of the grinding head (1); A limiting column (213) is arranged on the side wall of the other of the receiving groove (211) and the base (11), and the limiting column (213) can cooperate with the long circular hole (13) to limit the movement stroke of the grinding head (1). A slide rail is arranged on the side wall of one of the receiving groove (211) and the base (11), and the length direction of the slide rail is the same as the sliding direction of the grinding head (1); A sliding groove adapted to the slide rail is arranged on the side wall of the other of the receiving groove (211) and the base (11). One slide rail and one sliding groove form a set of sliding structures, and at least two sets of sliding structures are evenly arranged between the receiving groove (211) and the base (11). The shape of the slide rail is preferably "匸" - shaped. Multiple guide columns are arranged between the base (11) and the receiving groove (211), and the length directions of the multiple guide columns are the same as the sliding direction of the grinding head (1). Four guide columns are provided. The base (11) is square.

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