Spoke end polishing equipment

Abstract

The invention discloses spoke end grinding equipment, a spoke comprises a spoke body and a connecting cap fixed to the end of the spoke body in a sleeving mode, the end of the spoke body of the spoke is exposed out of the connecting cap and forms a to-be-ground part before the spoke is ground, and the spoke end grinding equipment comprises a rack; the spoke jig comprises a rotating base and a jig motor; the rotating base is rotationally mounted on the rack around a first axis in a first direction, and at least one spoke fixing part is arranged on the rotating base; the jig motor is in transmission connection with the rotating base so as to drive the rotating base to rotate; the spoke fixing parts and the spokes are matched in a limiting mode in the first direction, the ends of the spokes are exposed out of the spoke fixing parts, and the relative position relation between the connecting caps of the spokes and the spoke fixing parts is kept consistent. The position of the spoke fixing part on the rotating base is configured to be suitable for rotating around a first axis along with the rotating base; the polishing device is fixedly connected to the rack and provided with a polishing wheel rotating around a second axis perpendicular to the first direction; the polishing wheel is located on the first side, in the first direction, of the rotating base, a polishing face used for polishing the to-be-polished part is formed on the peripheral side edge, relative to the second axis, of the polishing wheel, and the polishing face is overlapped with the rotating track of the spoke fixing part on the projection face perpendicular to the first direction. According to the spoke end grinding equipment, the grinding efficiency can be improved, and the spoke end grinding flatness can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of spoke manufacturing, and in particular to a spoke end grinding device. Background Art

[0002] Spokes are important components used to form a wheel set. They can be made of metal or carbon fiber materials. One end of the spoke is connected to the hub of the wheel set, and the other end is connected to the rim of the wheel set. The three work together to form a usable wheel set. Spokes are generally in the shape of thin and long strips. After connecting the hub and the rim, they can support the rim to keep it in the correct position. At the same time, they withstand forces from all directions during riding, including the impact force of the ground, the centripetal force during riding, etc. Spokes generally include a spoke body and connecting caps fixed at both ends of the spoke body and used to connect to the hub and the rim respectively. In the process of manufacturing spokes, the spoke body is generally inserted into the connecting cap, and then the connecting cap is tightened and fixed to the spoke body. At this time, a part of the end of the spoke body will be exposed outside the connecting cap, and this part needs to be polished so that the end of the spoke body is flush with the connecting cap. At present, manual operation is generally adopted, and the staff holds the spoke to be polished and puts the end of the spoke against the polishing plate of the polishing device for polishing. This grinding method is inefficient and the manual operation can easily result in uneven grinding of the spoke ends. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned defects or problems existing in the background technology and to provide a spoke end grinding device, which can improve the grinding efficiency and improve the grinding flatness of the spoke end.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] Technical solution 1: A spoke end grinding device, the spoke includes a spoke body and a connecting cap sleeved and fixed on the end of the spoke body, the end of the spoke body of the spoke before grinding is exposed from the connecting cap and forms a portion to be ground, which includes: a frame; a spoke jig, which includes a rotating base and a jig motor; the rotating base is rotatably mounted on the frame around a first axis in a first direction, and at least one spoke fixing portion is provided on the frame; the jig motor is transmission-connected to the rotating base to drive the rotating base to rotate; the spoke fixing portion cooperates with the spoke in the first direction to limit the position, and exposes the end of the spoke to The spoke fixing part is outside the spoke fixing part, and the relative position relationship between the connecting cap of each spoke and the spoke fixing part is kept consistent; the position of the spoke fixing part on the rotating base is configured to be suitable for rotating around a first axis with the rotating base; a grinding device is fixedly connected to the frame and is provided with a grinding wheel rotating around a second axis perpendicular to the first direction; the grinding wheel is located on one side of the rotating base in the first direction, and its circumferential edge relative to the second axis forms a grinding surface for grinding the part to be polished, and the grinding surface overlaps with the rotation trajectory of the spoke fixing part on a projection plane perpendicular to the first direction.

[0006] Technical solution 2 based on technical solution 1: the spoke fixing portion is arranged on the circumferential edge of the rotating base relative to the first axis, and is in the shape of a groove with a notch for the spoke to be embedded and fixed, and the notch faces outward relative to the first axis and is perpendicular to the first axis.

[0007] Technical solution three based on technical solution two: the spoke fixing portion is provided with a limiting surface perpendicular to the first direction, and the connecting cap of the spoke overlaps the limiting surface to form a limiting fit with the spoke fixing portion in the first direction.

[0008] Technical solution 4 based on technical solution 3: the first direction is the up and down direction, and the spoke is suspended on the spoke fixing part under the action of gravity.

[0009] Technical solution five based on technical solution two: the frame includes a limiting substrate; the limiting substrate is provided with a limiting wall adapted to the shape of the rotation trajectory of the spoke fixing part, and the limiting wall is parallel to the first axis and corresponds to the position of the spoke fixing part, so as to limit the spokes that enter its range and are located in the spoke fixing part inward relative to the first axis.

[0010] Technical solution six based on technical solution five: the limiting substrate is provided with a loading notch which disconnects the limiting wall in the circumferential direction relative to the first axis, and the rotating base is exposed outside the range of the limiting wall at the position of the loading notch.

[0011] Technical solution seven based on technical solution six: the spoke jig also includes a blanking piece, which is fixedly connected to the frame and has a blanking portion; the position of the blanking portion corresponds to the loading notch, which protrudes radially outside the rotation trajectory of the spoke fixing portion relative to the first axis, and is provided with a blanking surface extending obliquely in a direction consistent with the rotation direction of the rotating base, so as to push the spoke outward relative to the first axis when the spoke passes and make it detach from the spoke fixing portion where it is located.

[0012] Technical solution eight based on technical solution four: also includes a clamping device; the limiting base plate is provided with a clamping notch corresponding to the position of the grinding wheel and disconnecting the limiting wall in the circumferential direction relative to the first axis; the depth of the spoke fixing portion in the radial direction of the rotating base relative to the first axis is configured to make the spoke flush with or protrude from the edge of the slot of the spoke fixing portion; the clamping device is fixed to the frame and includes an abutment assembly and an elastic movable assembly; the abutment assembly is slidably mounted on the frame along a second direction parallel to the second axis and is provided with an abutment portion; the elastic movable assembly elastically acts on the abutment assembly and the frame along the second direction to push the abutment portion of the abutment assembly inward relative to the first axis to push the spoke that rotates to the clamping notch and is located in the spoke fixing portion.

[0013] Technical solution nine based on technical solution eight: the abutment assembly includes an abutment wheel that rotates around a third axis in the first direction, and the circumferential edge of the abutment wheel relative to the third axis forms the abutment portion.

[0014] In addition, the present invention also provides technical solution ten: the abutment component includes a sliding seat, and the elastic movable component includes a first fixed seat, a second fixed seat and an elastic member; the sliding seat is slidably mounted on the frame along the second direction, and the abutment wheel is rotatably mounted on the sliding seat; the first fixed seat is fixedly mounted on the frame and is provided with a first mounting groove, and the second fixed seat is fixedly mounted on the sliding seat and is provided with a second mounting groove corresponding to the position of the first mounting groove; the two ends of the elastic member in the second direction respectively extend into the first mounting groove and the second mounting groove and abut against the bottom of the first mounting groove and the second mounting groove.

[0015] Technical solution eleven based on technical solution one: also includes an adjusting device, which is fixedly connected to the frame and is provided with a mounting base suitable for sliding relative to the frame in a first direction; the grinding device is fixedly mounted on the mounting base; the adjusting device also includes an adjusting screw extending along the first direction and an adjusting nut threadedly connected to the adjusting screw; the mounting base is limitedly matched with the adjusting nut in the first direction to adjust the position of the mounting base relative to the spoke fixing part through the position of the adjusting nut on the adjusting screw.

[0016] Technical solution 12 based on technical solution 11: the adjusting device also includes a plurality of sliding shafts extending along the first direction and fixed to the frame; the mounting base is clearance-matched with each of the sliding shafts along the first direction, and the position of each of the sliding shafts is configured to enable the mounting base to slide only along the first direction.

[0017] It can be seen from the above description of the present invention that, compared with the prior art, the present invention has the following beneficial effects:

[0018] Technical solution 1 provides a spoke end grinding device, which can grind the part to be polished of the spoke end, and includes a frame, a spoke fixture and a grinding device. The spoke fixture includes a rotating base and a fixture motor, and the fixture motor can drive the rotating base to rotate around a first axis. A spoke fixing part is provided on the rotating base, and the spoke fixing part cooperates with the spoke in a first direction so that after the spoke is fixedly installed in the spoke fixing part, the end of the spoke can be exposed outside the spoke fixing part, and the limit matching relationship between the spoke fixing part and the spoke can limit the degree of exposure of the spoke, wherein the length of the part to be polished of different spokes is different, but the end of the spoke body is to be polished to be flush with the connecting cap, so the relationship between the spoke fixing part and the connecting cap is consistent, so that in each grinding, no matter how much the exposed end of the spoke body is, the end length of the spoke body left after grinding can be accurately controlled; at the same time, the spoke fixing part also rotates around the first axis with the rotating base, thereby forming a circular rotation track. The grinding device is provided with a grinding wheel which rotates around a second axis, and the grinding wheel uses its circumferential side edge as a grinding surface to grind the spokes, and the grinding surface overlaps with the rotation trajectory of the spoke fixing part on a projection surface perpendicular to the first direction; when the spoke fixing part to which the spokes are fixed rotates to the position of the grinding wheel, the part of the spoke to be polished will contact the grinding surface of the grinding wheel, and since the second axis is perpendicular to the first axis and the grinding wheel is disc-shaped, during the rotation of the spoke fixing part, the part of the spoke to be polished will be gradually polished by the grinding wheel until the spoke moves to a plane position formed by the intersection of the first axis and the second axis, at which time the distance between the connecting cap on the spoke and the grinding surface is the shortest, and by controlling this distance, the end length of the spoke body left after grinding, that is, the length of the part of the spoke body protruding from the connecting cap, can be controlled. Since the size and position of the grinding wheel and its relative position to the spoke fixing part can be predetermined, and the relative position of the grinding wheel and the spoke fixing part will not change during the grinding process, the spokes that meet the length requirement of the exposed connection cap part can be obtained repeatedly. In addition, due to the positional relationship between the grinding wheel and the spoke fixing part, when the spoke passes through the grinding wheel, the part to be polished will first contact the grinding surface obliquely. At this time, the grinding surface will start to polish the part to be polished from the side position of the part to be polished, rather than directly starting to polish from the front of the part to be polished. Then, as the spoke moves, the contact between the grinding surface and the part to be polished will gradually turn to the front, so that the end of the spoke body can be polished flat. Through this process, not only can the wear of the grinding wheel be reduced, but also the flatness of the end of the spoke body after polishing can be improved.

[0019] The spoke end grinding equipment provided by the present technical solution fixes the spoke to the spoke fixing part of the rotating base, and makes the spoke fixing part rotate with the rotating base, so that the spoke can pass through the position of the grinding wheel in the grinding device, thereby grinding the exposed part to be polished of the spoke end through the grinding surface of the grinding wheel, thereby completing the automatic grinding of the spoke end; the spoke end grinding equipment has the advantages of high grinding efficiency and good grinding flatness.

[0020] In the second technical solution, the spoke fixing part is arranged on the circumferential edge of the rotating base, and the spoke fixing part is in the shape of a groove with a notch. When fixing the spoke, the spoke can be conveniently embedded into the groove-shaped spoke fixing part from the outer circumference of the rotating base. Moreover, the notch is directed outward relative to the first axis and perpendicular to the first axis. In the process of embedding the spoke into the notch, the embedding direction of the spoke is more convenient for applying force, which can ensure that the spoke is embedded in the spoke fixing part in a correct posture.

[0021] In technical solution three, a limiting surface is provided in the spoke fixing portion, and the connecting cap of the spoke is overlapped on the limiting surface, which can accurately define the positional relationship between the spoke fixing portion and the connecting cap, thereby ensuring that the degree of exposure of the connecting cap in the portion of the spoke exposed from the spoke fixing portion is always kept consistent.

[0022] In technical solution four, the first direction is the up and down direction, so the spokes can be suspended on the spoke fixing part under the action of gravity. When loading, the spokes can be conveniently hung on the spoke fixing part from the circumferential edge of the rotating base. Under the action of gravity, the connecting caps on the spokes will be seated on the limiting surface. There is no need to adjust the position of the spokes, and the exposure degree of the connecting caps can be kept consistent.

[0023] In technical solution five, the frame includes a limiting base plate, on which a limiting wall is arranged. During the process of the spoke fixing part rotating with the rotating base, when the spoke fixing part enters the range of the limiting wall, the limiting wall will limit the spoke inward relative to the first axis, so that the spoke is confined in the space formed by the spoke fixing part and the limiting wall, thereby preventing the spoke from falling off from the spoke fixing part due to the influence of centrifugal force during the rotation of the spoke fixing part.

[0024] In technical solution six, a loading notch is provided on the limiting substrate to facilitate loading of the spokes to the spoke fixing portion.

[0025] In the seventh technical solution, a blanking piece is provided in the spoke jig, the blanking portion of the blanking piece protrudes from the rotation track of the spoke fixing portion, and is provided with an inclined blanking surface. After the spoke is polished, the spoke will rotate with the spoke fixing portion to the position of the blanking piece, and the spoke will abut against the blanking surface, and the blanking surface will apply an outward thrust relative to the first axis to the spoke, so that the polished spoke will automatically fall off from the spoke fixing portion, and then the fallen spokes can be collected.

[0026] In technical solution eight, a clamping device is provided, and a clamping notch is provided on the limiting substrate. The elastic movable component of the clamping device will keep the abutting portion of the abutting component moving in the second direction toward the position of the rotating base. When the spoke rotates to the position of the clamping notch, the depth of the spoke fixing portion makes the spoke flush with or protrudes from the edge of the groove of the spoke fixing portion. Therefore, the abutting portion will push the spoke inward relative to the first axis, so that the spoke is firmly fixed in the spoke fixing portion. When the part to be polished is polished, the shaking of the spoke due to loose fixation can be avoided, thereby improving the polishing flatness.

[0027] In technical solution nine, an abutment portion is formed by the circumferential edge of the rotating abutment wheel in the abutment assembly. When the circumferential edge of the abutment wheel abuts against the spoke, it can rotate with the rotation of the spoke, thereby converting the friction between the abutment portion and the spoke into rolling friction, reducing the friction between the two, ensuring the smooth rotation of the rotating base, and reducing the wear on the surface of the spoke.

[0028] In technical solution ten, the abutment assembly includes a sliding seat, which can facilitate the abutment assembly to slide in the second direction under the action of the elastic movable assembly; the elastic movable assembly includes a first fixed seat, a second fixed seat and an elastic member, the first fixed seat and the second fixed seat are used to fix the frame and the sliding seat, and the elastic member can be embedded in the first fixing seat and the second fixing seat respectively provided on the first fixing seat and the second fixing seat, thereby applying a thrust to the abutment assembly to move along the second direction toward the position where the rotating base is located.

[0029] In technical solution eleven, an adjusting device is provided, in which a mounting base is used to fix the grinding device, and is provided with an adjusting screw and an adjusting nut. The adjusting nut can be rotated to adjust its position relative to the adjusting screw, and at the same time, the mounting base and the adjusting nut are limited in cooperation, so that the position of the mounting base can be adjusted by adjusting the position of the adjusting nut, thereby adjusting the position of the grinding surface of the grinding device relative to the rotating base, and further adjusting the length of the portion of the end of the spoke body exposed from the connecting cap after grinding.

[0030] There are twelve technical solutions. The adjusting device also includes a plurality of sliding shafts, which can improve the stability of the mounting base when it moves along the first direction, avoid tilting when adjusting the position of the mounting base, and improve the accuracy and stability of the position adjustment of the grinding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 It is a structural exploded diagram of a spoke end grinding device involved in an embodiment of the present invention;

[0033] Figure 2 It is a schematic structural diagram of the assembly state of the spoke end grinding device involved in an embodiment of the present invention;

[0034] Figure 3 for Figure 1 Schematic diagram of the structure of the middle spoke fixture;

[0035] Figure 4 for Figure 3 A magnified schematic diagram of part A;

[0036] Figure 5 for Figure 1 The schematic diagram of the structure of the grinding device and the adjusting device;

[0037] Figure 6 for Figure 1 Schematic diagram of the structure of the middle clamping device part.

[0038] Description of main reference numerals:

[0039] Spoke 10; spoke body 11; connecting cap 12; part to be polished 13;

[0040] Frame 20; limiting base plate 21; limiting wall 211; feeding notch 212; pressing notch 213; giving way hole 214; pressing base plate 22; main bracket 23; receiving piece 24; fixture mounting plate 25; fixture support shaft 26; motor mounting plate 27; slide rail 28;

[0041] Spoke fixture 30; rotating base 31; rotating disk 311; spoke fixing seat 312; fixing seat mounting groove 313; fixture motor 32; spoke fixing portion 33; notch 331; limiting surface 332; blanking piece 34; blanking portion 341; blanking surface 342;

[0042] Grinding device 40; Grinding wheel 41; Grinding surface 42;

[0043] The clamping device 50; the abutting assembly 51; the abutting portion 511; the abutting wheel 512; the sliding seat 513; the elastic movable assembly 52; the first fixed seat 521; the second fixed seat 522; the elastic member 523;

[0044] Adjusting device 60; mounting base 61; adjusting screw 62; adjusting nut 63; sliding shaft 64. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] In the claims, description and the above-mentioned drawings of the present invention, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. are for distinguishing different objects rather than for describing a specific order.

[0047] In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific protection scope of the present invention.

[0048] In the claims, specification and the above drawings of the present invention, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0049] In the claims, description and drawings of the present invention, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0050] In the claims, specification and the above drawings of the present invention, "limited fit" means that two objects contact each other in a certain direction and at least one of the objects can be restricted from continuing to move in that direction.

[0051] Example

[0052] The embodiment of the present invention relates to a spoke 10 end grinding device, which is used to grind the end of a semi-finished spoke 10 so that the end of the spoke 10 after grinding meets the requirements. Figure 4The spoke 10 to be polished includes a spoke body 11 and a connecting cap 12. The connecting cap 12 is sleeved and fixed at the end position of the spoke body 11. In the early stage of the spoke 10 before polishing, the end of the spoke body 11 exposes the connecting cap 12 and forms a portion to be polished 13. It is easy to understand that the "end of the spoke 10" or "end of the spoke body 11" referred to in this specification and claims refers to the part of the spoke 10 that is close to the end position of its length direction. It is a reference to a rough position. Those skilled in the art can clearly understand the meaning of "end" based on the contents recorded in this specification and claims. Before the spoke 10 is polished, part of the spoke body 11 will be exposed from the connecting cap 12. The part of the exposed part that does not meet the requirements is the above-mentioned portion to be polished 13. Through the spoke 10 end polishing equipment involved in this embodiment, the portion to be polished 13 can be polished away, so that the length of the part of the spoke body 11 exposed from the connecting cap 12 meets the requirements. There are two situations that meet the requirements here, one is that the spoke body 11 is not exposed from the connecting cap 12 at all, that is, the end face of the spoke body 11 is flush with the end face of the connecting cap 12, and the other is that the spoke body 11 is partially exposed from the connecting cap 12, that is, the end face of the spoke body 11 is higher than the end face of the connecting cap 12. Among them, the spoke body 11 can be made of metal or carbon fiber. In this embodiment, carbon fiber material is used, and the connecting cap 12 is made of metal.

[0053] Reference Figure 1 and Figure 2 The spoke 10 end grinding device involved in this embodiment includes a frame 20, a spoke fixture 30, a grinding device 40, a pressing device 50, and an adjusting device 60.

[0054] Reference Figure 1 and Figure 2 The frame 20 includes a limiting base plate 21, a clamping base plate 22, a main bracket 23, a material receiving piece 24, a fixture mounting plate 25, a fixture support shaft 26, and a motor mounting plate 27. The main bracket 23 includes a plurality of legs, and an adjustment seat for adjusting the height of the main bracket 23 is provided at the bottom of the legs. The main bracket 23 is configured as a stepped structure with three steps, wherein the material receiving piece 24 is arranged on the first step of the main bracket 23, the spoke fixture 30 is arranged on the second step, and the grinding device 40, the clamping device 50 and the adjusting device 60 are arranged on the third step. The material receiving piece 24 is a plate-like component, which is fixedly mounted on the main bracket 23 by bolts, and has an upward surface for receiving the spokes 10 dropped from the spoke fixture 30.

[0055] Reference Figure 3A jig mounting plate 25 is fixedly connected to the second step of the main bracket 23 by bolts. The jig mounting plate 25 is a plate-like component that extends in the horizontal direction. A plurality of jig support shafts 26 are fixedly connected to the jig mounting plate 25 by bolts. The jig support shafts 26 extend in the up-down direction, and the plurality of jig support shafts 26 corresponding to a spoke jig 30 are arranged in a ring around a preset axis, and the preset axis is the first axis in the first direction. In this embodiment, the up-down direction is the first direction in the specification and the claims, and the front-to-back direction is the second direction in the specification and the claims. A motor mounting plate 27 is fixedly connected to the top of each jig support shaft 26 by bolts. The motor mounting plate 27 extends in the horizontal direction and is used for fixing and installing the spoke jig 30.

[0056] Reference Figure 1 and Figure 2 The limiting substrate 21 and the pressing substrate 22 are both fixedly mounted on the third step position of the main bracket 23. The structures and functions of the two are described in detail below.

[0057] Reference Figure 3 The spoke fixture 30 includes a rotating base 31 and a fixture motor 32; the rotating base 31 is rotatably mounted on the frame 20 around a first axis in a first direction, and is provided with at least one spoke fixing portion 33; the fixture motor 32 is transmission-connected with the rotating base 31 to drive the rotating base 31 to rotate; the spoke fixing portion 33 cooperates with the spoke 10 in the first direction to limit the position, and makes the end of the spoke 10 exposed outside the spoke fixing portion 33, and the relative position relationship between the connecting cap 12 of each spoke 10 and the spoke fixing portion 33 is consistent; the position of the spoke fixing portion 33 on the rotating base 31 is configured to be suitable for rotating around the first axis with the rotating base 31. The spoke fixing portion 33 is arranged on the circumferential edge of the rotating base 31 relative to the first axis, and is in the shape of a groove with a notch 331 for the spoke 10 to be embedded and fixed, and the notch 331 faces outward relative to the first axis and is perpendicular to the first axis. The spoke fixing portion 33 is provided with a limiting surface 332 perpendicular to the first direction, and the connecting cap 12 of the spoke 10 overlaps the limiting surface 332 to form a limiting fit with the spoke fixing portion 33 in the first direction. The first direction is the up-down direction, and the spoke 10 is suspended on the spoke fixing portion 33 by gravity.

[0058] Specifically, refer to Figure 3The spoke jig 30 includes a rotating base 31 and a jig motor 32, wherein the jig motor 32 is fixedly mounted on the motor mounting plate 27 of the frame 20, and the main body of the jig motor 32 is located below the motor mounting plate 27, that is, in the space enclosed by the jig support shaft 26, and the output end of the jig motor 32 passes through the motor mounting plate 27 and is fixedly connected to the rotating base 31 as a whole, so that the rotating base 31 can be driven by the jig motor 32 to rotate around the first axis in the first direction. In this embodiment, taking the spoke jig 30 located on the left side as an example, its rotation direction is clockwise when viewed from top to bottom.

[0059] The rotating base 31 includes a rotating disk 311 and a plurality of spoke fixing seats 312. A plurality of fixing seat installation grooves 313 are evenly arranged at fixed angles along the circumference of the rotating disk 311. The fixing seat installation grooves 313 are connected to the circumferential edge of the rotating disk 311, that is, the fixing seat installation grooves 313 have open openings on the circumferential edge of the rotating disk 311. A spoke fixing seat 312 is fixedly installed on each fixing seat installation groove 313 by bolts, so the spoke fixing seats 312 are also evenly arranged at fixed angles along the circumference of the rotating disk 311, and the outer edges of the spoke fixing seats 312 are flush with the circumferential edge of the rotating disk 311. In this embodiment, the circumferential edge of the rotating disk 311 is circular, that is, the projection shape of the rotating disk 311 viewed from top to bottom is circular, and the outer edge of the spoke fixing seat 312 is arc-shaped, and the arc length and central angle of the arc at the corresponding position of the rotating disk 311 are equal. Therefore, after the spoke fixing seat 312 is fixedly installed on the rotating disk 311, the overall projection shape of the entire rotating base 31 viewed from top to bottom is also circular.

[0060] Reference Figure 4 , the spoke fixing portion 33 is formed on each spoke fixing seat 312. The spoke fixing portion 33 is arranged on the outer surface of the spoke fixing seat 312, that is, on the peripheral edge of the rotating base 31, and is a groove-shaped structure having a notch 331, and the notch 331 is oriented perpendicular to the first axis. When fixing the spoke 10, the spoke 10 can be conveniently embedded into the groove-shaped spoke fixing portion 33 from the outer peripheral position of the rotating base 31. Moreover, the notch 331 is oriented perpendicular to the first axis outward relative to the first axis. In the process of embedding the spoke 10 into the notch 331, the embedding direction of the spoke 10 is more convenient for applying force, which can ensure that the spoke 10 is embedded into the spoke fixing portion 33 in a correct posture.

[0061] A limiting surface 332 is provided in the spoke fixing portion 33. The limiting surface 332 is provided at the lower side of the spoke fixing portion 33 in the up-down direction and extends in the horizontal direction, thereby forming a step-like structure in cooperation with the groove wall of the spoke fixing portion 33. In the structure of the spoke 10, the radial dimension of the connecting cap 12 is larger than the radial dimension of the end position of the spoke body 11 where it is located. Therefore, the step-like structure formed by the limiting surface 332 on the spoke fixing portion 33 is just matched with the shape of the spoke 10 at this position. The connecting cap 12 can overlap the limiting surface 332, so that the spoke 10 and the spoke fixing portion 33 are limited in the first direction. A limiting surface 332 is provided in the spoke fixing portion 33, and the connecting cap 12 of the spoke 10 is overlapped on the limiting surface 332, so that the positional relationship between the spoke fixing portion 33 and the connecting cap 12 can be accurately defined, thereby ensuring that the degree of exposure of the connecting cap 12 in the portion of the spoke 10 exposed from the spoke fixing portion 33 is always kept consistent.

[0062] In particular, in this embodiment, the first direction is the up-down direction, so when the spoke 10 is embedded in the spoke fixing portion 33, the connection cap 12 can be automatically overlapped on the limiting surface 332 under the action of gravity, so that the spoke 10 is suspended in the spoke fixing portion 33. When loading, the spoke 10 can be conveniently hung in the spoke fixing portion 33 from the circumferential edge position of the rotating base 31, and under the action of gravity, the connection cap 12 on the spoke 10 will be seated on the limiting surface 332, and there is no need to adjust the position of the spoke 10, so that the exposure degree of the connection cap 12 can be kept consistent.

[0063] In this embodiment, after the spoke 10 is embedded in the spoke fixing portion 33 and suspended and fixed, the connecting cap 12 of the spoke 10 will be partially exposed above the upper surface of the spoke fixing portion 33, and because the position of the connecting cap 12 on the spoke body 11 is fixed, after the connecting cap 12 overlaps the limiting surface 332 of the spoke fixing portion 33, the degree to which the connecting cap 12 is exposed from the spoke fixing portion 33 is also fixed. At the same time, the length of the portion to be polished 13 above the connecting cap 12 may be different on different spokes 10, but the length of the portion of the spoke body 11 exposed from the connecting cap 12 is ultimately required to be consistent. Therefore, by positioning the portion to be polished 13 through the connecting cap 12, it can be ensured that after each polishing, the shape and size of the end of the spoke 10 obtained can meet the requirements.

[0064] Reference Figure 5The grinding device 40 is fixedly connected to the frame 20 and is provided with a grinding wheel 41 rotating around a second axis perpendicular to the first direction; the grinding wheel 41 is located on the first side of the rotating base 31 in the first direction, and its circumferential edge relative to the second axis forms a grinding surface 42 for grinding the portion to be polished 13, and the grinding surface 42 overlaps with the rotation trajectory of the spoke fixing portion 33 on the projection plane perpendicular to the first direction.

[0065] The limiting substrate 21 is provided with a limiting wall 211 adapted to the shape of the rotation track of the spoke fixing portion 33, the limiting wall 211 is parallel to the first axis and corresponds to the position of the spoke fixing portion 33, so as to limit the spokes 10 entering its range and located in the spoke fixing portion 33 inwardly relative to the first axis. The limiting substrate 21 is provided with a feeding notch 212 that disconnects the limiting wall 211 in the circumferential direction relative to the first axis, and the rotating base 31 is exposed outside the range of the limiting wall 211 at the position of the feeding notch 212.

[0066] Furthermore, the adjusting device 60 is fixedly connected to the frame 20 and is provided with a mounting base 61 suitable for sliding relative to the frame 20 along a first direction; the grinding device 40 is fixedly mounted on the mounting base 61; the adjusting device 60 further comprises an adjusting screw 62 extending along the first direction and an adjusting nut 63 threadedly connected to the adjusting screw 62; the mounting base 61 is limitedly matched with the adjusting nut 63 in the first direction, so that the position of the mounting base 61 relative to the spoke fixing portion 33 is adjusted by the position of the adjusting nut 63 on the adjusting screw 62. The adjusting device 60 further comprises a plurality of sliding shafts 64 extending along the first direction and fixedly connected to the frame 20; the mounting base 61 is clearance-matched with each of the sliding shafts 64 along the first direction, and the position of each of the sliding shafts 64 is configured to enable the mounting base 61 to slide only along the first direction.

[0067] Specifically, refer to Figure 1 and Figure 5 , a limiting substrate 21 is fixedly connected to the upper side of the third step of the main bracket 23 by bolts, and a circular hole-shaped structure is formed at the front side of the limiting substrate 21. The inner wall of the hole-shaped structure forms a limiting wall 211, and the hole-shaped structure has an opening in the circumferential direction, and the opening forms a feeding notch 212. Specifically, taking the hole-shaped structure located on the left side as an example, its feeding notch 212 is located at the left front side. The inner diameter size of the hole-shaped structure is adapted to the outer diameter size of the rotating base 31, and the position of the rotating base 31 in the up and down direction is adapted to the position of the limiting wall 211, and the axes of the two are both the first axis, so refer to Figure 2, the rotating base 31 can rotate within the range of the limiting wall 211. Among them, the part of the rotating base 31 located at the feeding notch 212 does not fall within the range of the limiting wall 211, and the other parts form a limiting fit with the limiting wall 211. In the process of the spoke fixing part 33 rotating with the rotating base 31, when the spoke fixing part 33 enters the range of the limiting wall 211, the limiting wall 211 will limit the spoke 10 inward relative to the first axis, so that the spoke 10 is confined in the space formed by the spoke fixing part 33 and the limiting wall 211, and the spoke 10 is prevented from falling off from the spoke fixing part 33 due to the influence of centrifugal force during the rotation of the spoke fixing part 33. At the same time, through the feeding notch 212, the spoke 10 can be conveniently embedded and fixed in the spoke fixing part 33.

[0068] At the rear side of the hole-shaped structure, an adjustment device 60 is fixedly mounted on the limiting substrate 21, and a grinding device 40 is fixedly mounted through the adjustment device 60. The adjustment device 60 includes four sliding shafts 64 extending in the up-down direction and a mounting base 61 that is clearance-matched with the sliding shafts 64 in the up-down direction. The lower surface of the mounting base 61 is fixedly mounted with the grinding device 40. The motor of the grinding device 40 is fixedly connected to the mounting base 61 by bolts. At the same time, a rotatable grinding wheel 41 is provided at the front end of the grinding device 40. The circumferential edge of the grinding wheel 41 forms a grinding surface 42, and the position of the grinding wheel 41 just corresponds to the rotation trajectory of the spoke fixing portion 33 on the rotating base 31. When the spoke fixing portion 33 rotates, it will pass under the grinding wheel 41. At this time, the grinding wheel 41 can grind the ends of the spokes 10 in the spoke fixing portion 33.

[0069] In the adjusting device 60, four sliding shafts 64 are arranged at the four corners of the mounting base 61 to limit the mounting base 61 to slide only in the up-down direction without tilting, thereby improving the accuracy and stability of the position adjustment of the grinding device 40. At the same time, the adjusting device 60 also includes two adjusting screws 62 and four adjusting nuts 63, one adjusting screw 62 is threadedly matched with two adjusting nuts 63, the two adjusting screws 62 are arranged on both sides of the mounting base 61 in the left-right direction, and the left and right sides of the mounting base 61 are clamped and fixed by two adjusting nuts 63 corresponding to one adjusting screw 62. By rotating the adjusting nuts 63, the height position of the mounting base 61 relative to the upper side surface of the limiting substrate 21 in the up-down direction can be adjusted, and then the height position of the grinding wheel 41 of the grinding device 40 relative to the upper side surface of the limiting substrate 21 can be adjusted. Therefore, the position of the grinding surface 42 of the grinding device 40 relative to the rotating base 31 can be adjusted by the adjusting device 60, and then the length of the part of the end of the spoke body 11 exposed from the connecting cap 12 after grinding can be adjusted.

[0070] In addition, refer to Figure 2 , Figure 3 and Figure 4The spoke jig 30 also includes a blanking piece 34, which is fixed to the frame 20 and has a blanking portion 341; the blanking portion 341 is located corresponding to the loading notch 212, protrudes radially outside the rotation trajectory of the spoke fixing portion 33 relative to the first axis, and is provided with a blanking surface 342 that extends obliquely in a direction consistent with the rotation direction of the rotating base 31, so as to push the spoke 10 outward relative to the first axis when the spoke 10 passes by and make it separate from the spoke fixing portion 33 where it is located.

[0071] Specifically, the unloading member 34 is a long strip-shaped member fixedly mounted on the motor mounting plate 27, which extends radially outward to the outside of the peripheral edge of the rotating base 31, and the portion exposed outside the rotating base 31 forms a unloading portion 341. A unloading slope is provided on the unloading portion 341, and the inclination direction of the unloading slope is consistent with the rotation direction of the rotating base 31. The consistency here means that the unloading slope is inclined from the inside to the outside along the rotation direction of the rotating base 31. For example, when the rotation direction of the rotating base 31 is clockwise when viewed from top to bottom, the inclination direction of the unloading slope is viewed from top to bottom and extends in a clockwise direction from inside to outside. It is easy to understand that the unloading slope can be a plane or a curved surface, which does not affect the unloading slope in achieving its function. After the spoke 10 is polished, the spoke 10 will rotate with the spoke fixing part 33 to the position of the unloading part 34, and the spoke 10 will abut against the unloading surface 342, and the unloading surface 342 will apply an outward thrust relative to the first axis to the spoke 10, so that the polished spoke 10 will automatically fall off from the spoke fixing part 33, and then the fallen spoke 10 can be collected. In addition, it should be noted that the unloading part 341 is set at the position corresponding to the loading notch 212, because only at the position of the loading notch 212 can the spoke 10 fall from the spoke fixing part 33 without being restricted by the limiting wall 211, but the position of the unloading part 341 should be as close to the upstream position of the loading notch 212 as possible along the rotation direction of the rotating base 31, and the loading can be carried out normally at the downstream of the unloading part 341.

[0072] Further, refer to Figure 6The limiting substrate 21 is provided with a clamping notch 213 corresponding to the position of the grinding wheel 41 and disconnecting the limiting wall 211 in the circumferential direction relative to the first axis; the depth of the spoke fixing portion 33 in the radial direction of the rotating base 31 relative to the first axis is configured to make the spoke 10 flush with the edge of the notch 331 of the spoke fixing portion 33 or protrude from the edge of the notch 331; the clamping device 50 is fixed to the frame 20 and includes an abutment component 51 and an elastic movable component 52; the abutment component 51 is slidably mounted on the frame 20 along a second direction parallel to the second axis and is provided with an abutment portion 511; the elastic movable component 52 elastically acts on the abutment component 51 and the frame 20 along the second direction to push the abutment portion 511 of the abutment component 51 inward relative to the first axis to push the spoke 10 rotated to the clamping notch 213 and located in the spoke fixing portion 33.

[0073] The abutting assembly 51 includes an abutting wheel 512 that rotates around a third axis in the first direction, and the circumferential edge of the abutting wheel 512 relative to the third axis forms the abutting portion 511. The abutting assembly 51 includes a sliding seat 513, and the elastic movable assembly 52 includes a first fixed seat 521, a second fixed seat 522 and an elastic member 523; the sliding seat 513 is slidably mounted on the frame 20 along the second direction, and the abutting wheel 512 is rotatably mounted on the sliding seat 513; the first fixed seat 521 is fixedly mounted on the frame 20 and is provided with a first mounting groove, and the second fixed seat 522 is fixedly mounted on the sliding seat 513 and is provided with a second mounting groove corresponding to the position of the first mounting groove; the two ends of the elastic member 523 in the second direction extend into the first mounting groove and the second mounting groove respectively and abut against the groove bottoms of the first mounting groove and the second mounting groove.

[0074] Specifically, refer to Figure 1 and Figure 6The limiting substrate 21 is also provided with a clamping notch 213, the position of which corresponds to the position of the second axis of the grinding wheel 41 in the vertical direction, and a clearance hole 214 is provided at the rear side of the clamping notch 213, and the clearance hole 214 is connected with the hole-shaped structure for forming the limiting wall 211 at the front side of the limiting substrate 21 through the clamping notch 213. A clamping substrate 22 is fixedly connected to the lower side of the third step of the main bracket 23 by bolts, and a clamping device 50 is fixedly installed on the clamping substrate 22, and a slide rail 28 extending along the second direction is provided on the clamping substrate 22. In the clamping device 50, a first fixed seat 521 is fixed on the clamping base plate 22 by bolts, a first mounting groove is recessed on the front side surface of the first fixed seat 521, a second fixed seat 522 is provided at the position corresponding to the first fixed seat 521, the second fixed seat 522 is fixed to a sliding seat 513 by bolts, and a second mounting groove is recessed on the rear side surface of the second fixed seat 522, and the elastic member 523 is a spring, both ends of which are inserted into the first mounting groove and the second mounting groove for fixing, and abut against the bottom of the first mounting groove and the second mounting groove, which can make the second fixed seat 522 have a tendency to move forward through elastic action. Among them, the sliding seat 513 is slidably arranged on the slide rail 28, so the sliding seat 513 can slide freely in the second direction through the slide rail 28 to change its position. An abutting wheel 512 is installed on the upper side surface of the sliding seat 513 through a bearing structure, and the abutting wheel 512 rotates around the third axis along the first direction, and its peripheral edge forms an abutting portion 511. The abutting wheel 512 is arranged in the clearance hole 214 so that the peripheral edge of the abutting wheel 512 can correspond to the pressing notch 213. When the spoke 10 rotates to the position of the pressing notch 213, the depth of the spoke fixing portion 33 makes the spoke 10 flush with or protrude from the edge of the notch 331 of the spoke fixing portion 33, so the abutting portion 511 will push the spoke 10 inward relative to the first axis, so that the spoke 10 is firmly fixed in the spoke fixing portion 33. When the polishing portion 13 is polished, the spoke 10 can be prevented from shaking due to loose fixation, thereby improving the polishing flatness. In the abutment assembly 51, an abutment portion 511 is formed by the circumferential edge of a rotating abutment wheel 512. When the circumferential edge of the abutment wheel 512 abuts against the spoke 10, it can rotate along with the rotation of the spoke 10, thereby converting the friction between the abutment portion 511 and the spoke 10 into rolling friction, reducing the friction between the two, ensuring the smooth rotation of the rotating base 31, and reducing the wear on the surface of the spoke 10.

[0075] The embodiment of the present invention relates to a spoke 10 end grinding device, which can grind the to-be-grinded portion 13 of the spoke 10 end, and includes a frame 20, a spoke jig 30, and a grinding device 40. The spoke jig 30 includes a rotating base 31 and a jig motor 32, and the jig motor 32 can drive the rotating base 31 to rotate around a first axis. A spoke fixing portion 33 is provided on the rotating base 31, and the spoke fixing portion 33 cooperates with the spoke 10 in a first direction to limit the position, so that after the spoke 10 is fixedly installed in the spoke fixing portion 33, the end of the spoke 10 can be exposed outside the spoke fixing portion 33, and the limit matching relationship between the spoke fixing portion 33 and the spoke 10 can limit the extent of the spoke 10 being exposed. The lengths of the portions to be polished 13 of different spokes 10 are different, but the end of the spoke body 11 is polished to be flush with the connecting cap 12. Therefore, the relationship between the spoke fixing portion 33 and the connecting cap 12 remains consistent, so that each time the spokes are polished, no matter how long the exposed end of the spoke body 11 is, the length of the end of the spoke body 11 left after polishing can be accurately controlled; at the same time, the spoke fixing portion 33 also rotates around the first axis with the rotating base 31, thereby forming a circular rotation trajectory. The grinding device 40 is provided with a grinding wheel 41 rotating around the second axis, and the grinding wheel 41 uses its circumferential side edge as a grinding surface 42 to grind the spoke 10, and the grinding surface 42 overlaps with the rotation trajectory of the spoke fixing portion 33 on the projection plane perpendicular to the first direction; when the spoke fixing portion 33 fixed with the spoke 10 rotates to the position of the grinding wheel 41, the portion to be polished 13 of the spoke 10 will contact the grinding surface 42 of the grinding wheel 41, and since the second axis is perpendicular to the first axis and The grinding wheel 41 is in the shape of a disk, so during the rotation of the spoke fixing portion 33, the portion to be polished 13 of the spoke 10 will be gradually polished by the grinding wheel 41 until the spoke 10 moves to the plane position formed by the intersection of the first axis and the second axis, at which time the distance between the connecting cap 12 on the spoke 10 and the grinding surface 42 is the shortest, and by controlling this distance, the end length of the spoke body 11 left after polishing, that is, the length of the portion of the spoke body 11 protruding from the connecting cap 12 can be controlled. Since the size and position of the grinding wheel 41 and its relative position to the spoke fixing portion 33 can be predetermined, and the relative position of the grinding wheel 41 and the spoke fixing portion 33 will not change during the polishing process, the spoke 10 that meets the length requirement of the portion exposed from the connecting cap 12 can be obtained repeatedly.In addition, due to the positional relationship between the grinding wheel 41 and the spoke fixing portion 33, when the spoke 10 passes through the grinding wheel 41, the portion to be polished 13 will first contact the grinding surface 42 at an angle. At this time, the grinding surface 42 will start to grind the portion to be polished 13 from the side position of the portion to be polished 13, instead of directly grinding from the front of the portion to be polished 13. Then, as the spoke 10 moves, the contact between the grinding surface 42 and the portion to be polished 13 will gradually turn to the front, so that the end of the spoke body 11 can be polished flat. Through this process, not only the wear of the grinding wheel 41 can be reduced, but also the flatness of the end of the spoke body 11 after grinding can be improved.

[0076] The above-mentioned spoke 10 end grinding equipment fixes the spoke 10 to the spoke fixing portion 33 of the rotating base 31, and makes the spoke fixing portion 33 rotate with the rotating base 31, so that the spoke 10 can pass through the position of the grinding wheel 41 in the grinding device 40, thereby grinding the exposed portion to be polished 13 of the end of the spoke 10 through the grinding surface 42 of the grinding wheel 41, thereby completing the automatic grinding of the end of the spoke 10; the spoke 10 end grinding equipment has the advantages of high grinding efficiency and good grinding flatness.

[0077] The description of the above specification and embodiments is used to explain the protection scope of the present invention, but does not constitute a limitation on the protection scope of the present invention. Through the enlightenment of the present invention or the above embodiments, ordinary technicians in this field can obtain modifications, equivalent substitutions or other improvements to the embodiments of the present invention or part of the technical features thereof through logical analysis, reasoning or limited experiments, which should be included in the protection scope of the present invention.

Claims

1. A spoke (10) end grinding device, the spoke (10) comprising a spoke body (11) and a connecting cap (12) sleeved and fixed to the end of the spoke body (11), the end of the spoke body (11) of the spoke (10) before grinding is exposed from the connecting cap (12) and forms a portion to be ground (13), wherein: include: Frame (20); A spoke jig (30) comprises a rotating base (31) and a jig motor (32); the rotating base (31) is rotatably mounted on the frame (20) around a first axis in a first direction, and is provided with at least one spoke fixing portion (33); the jig motor (32) is transmission-connected to the rotating base (31) to drive the rotating base (31) to rotate; the spoke fixing portion (33) cooperates with the spoke (10) in a first direction to limit the position, and the end of the spoke (10) is exposed outside the spoke fixing portion (33), and the relative position relationship between the connecting cap (12) of each spoke (10) and the spoke fixing portion (33) is kept consistent; the position of the spoke fixing portion (33) on the rotating base (31) is configured to be suitable for rotating around the first axis with the rotating base (31); A grinding device (40) is fixedly connected to the frame (20) and is provided with a grinding wheel (41) that rotates around a second axis perpendicular to the first direction; the grinding wheel (41) is located on one side of the rotating base (31) in the first direction, and its circumferential edge relative to the second axis forms a grinding surface (42) for grinding the portion to be polished (13), and the grinding surface (42) overlaps with the rotation trajectory of the spoke fixing portion (33) on a projection plane perpendicular to the first direction.

2. A spoke (10) end grinding device as claimed in claim 1, characterized in that: The spoke fixing portion (33) is arranged on the circumferential edge of the rotating base (31) relative to the first axis and is in the shape of a groove with a notch (331) for the spoke (10) to be embedded and fixed, and the notch (331) faces outward relative to the first axis and is perpendicular to the first axis.

3. A spoke (10) end grinding device as claimed in claim 2, characterized in that: The spoke fixing portion (33) is provided with a limiting surface (332) perpendicular to the first direction, and the connecting cap (12) of the spoke (10) overlaps the limiting surface (332) to form a limiting fit with the spoke fixing portion (33) in the first direction.

4. A spoke (10) end grinding device as claimed in claim 3, characterized in that: The first direction is an up-down direction, and the spoke (10) is suspended on the spoke fixing portion (33) under the action of gravity.

5. A spoke (10) end grinding device as claimed in claim 2, characterized in that: The frame (20) comprises a limiting base plate (21); the limiting base plate (21) is provided with a limiting wall (211) adapted to the shape of the rotation track of the spoke fixing portion (33); the limiting wall (211) is parallel to the first axis and corresponds to the position of the spoke fixing portion (33) so as to limit the spoke (10) that enters its range and is located in the spoke fixing portion (33) inwardly relative to the first axis.

6. A spoke (10) end grinding device as claimed in claim 5, characterized in that: The limiting substrate (21) is provided with a loading notch (212) that disconnects the limiting wall (211) in a circumferential direction relative to the first axis, and the rotating base (31) is exposed outside the range of the limiting wall (211) at the position of the loading notch (212).

7. A spoke (10) end grinding device as claimed in claim 6, characterized in that: The spoke jig (30) further comprises a blanking piece (34), the blanking piece (34) being fixedly connected to the frame (20) and provided with a blanking portion (341); the blanking portion (341) is located corresponding to the loading notch (212), radially protrudes outside the rotation trajectory of the spoke fixing portion (33) relative to the first axis, and is provided with a blanking surface (342) extending obliquely in a direction consistent with the rotation direction of the rotating base (31), so as to push the spoke (10) outwardly relative to the first axis and cause it to detach from the spoke fixing portion (33) where it is located when the spoke (10) passes by.

8. A spoke (10) end grinding device as claimed in claim 4, characterized in that: The invention also comprises a clamping device (50); the limiting base plate (21) is provided with a clamping notch (213) corresponding to the position of the grinding wheel (41) and disconnecting the limiting wall (211) in the circumferential direction relative to the first axis; the depth of the spoke fixing portion (33) in the radial direction of the rotating base (31) relative to the first axis is configured so that the spoke (10) is flush with the edge of the notch (331) of the spoke fixing portion (33) or protrudes from the edge of the notch (331); the clamping device (50) is fixedly connected to the frame (20), and The invention comprises an abutment component (51) and an elastic movable component (52); the abutment component (51) is slidably mounted on the frame (20) along a second direction parallel to a second axis, and is provided with an abutment portion (511); the elastic movable component (52) elastically acts on the abutment component (51) and the frame (20) along the second direction to push the abutment portion (511) of the abutment component (51) to rotate inwardly relative to the first axis to the spoke (10) located in the clamping notch (213) and located in the spoke fixing portion (33).

9. A spoke (10) end grinding device as claimed in claim 8, characterized in that: The abutment assembly (51) comprises an abutment wheel (512) that rotates around a third axis in the first direction, and a peripheral edge of the abutment wheel (512) relative to the third axis forms the abutment portion (511).

10. A spoke (10) end grinding device as claimed in claim 9, characterized in that: The abutting assembly (51) comprises a sliding seat (513), and the elastic movable assembly (52) comprises a first fixed seat (521), a second fixed seat (522) and an elastic member (523); the sliding seat (513) is slidably mounted on the frame (20) along the second direction, and the abutting wheel (512) is rotatably mounted on the sliding seat (513); the first fixed seat (521) is fixedly mounted on the frame (20) and is provided with a first mounting groove, and the second fixed seat (522) is fixedly mounted on the sliding seat (513) and is provided with a second mounting groove corresponding to the position of the first mounting groove; the elastic member (523) extends into the first mounting groove and the second mounting groove at two ends in the second direction respectively and abuts against the groove bottoms of the first mounting groove and the second mounting groove.

11. A spoke (10) end grinding device as claimed in claim 1, characterized in that: Also includes an adjustment device (60), It is fixedly connected to the frame (20) and is provided with a mounting base (61) suitable for sliding relative to the frame (20) along a first direction; the grinding device (40) is fixedly mounted on the mounting base (61); the adjusting device (60) also includes an adjusting screw (62) extending along the first direction and an adjusting nut (63) threadedly connected to the adjusting screw (62); the mounting base (61) is limitedly matched with the adjusting nut (63) in the first direction, so as to adjust the position of the mounting base (61) relative to the spoke fixing portion (33) through the position of the adjusting nut (63) on the adjusting screw (62).

12. A spoke (10) end grinding device as claimed in claim 11, characterized in that: The adjusting device (60) further comprises a plurality of sliding shafts (64) extending along a first direction and fixed to the frame (20); the mounting base (61) and each of the sliding shafts (64) are clearance-matched along the first direction, and the position of each of the sliding shafts (64) is configured to enable the mounting base (61) to slide only along the first direction.

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