Spoke surface machining device, spoke manufacturing equipment and hub manufacturing system

Abstract

The utility model provides a spoke surface processing device which comprises a surface polishing mechanism, a detail polishing mechanism, an insert surface processing mechanism and a spoke transferring mechanism, and the spoke transferring mechanism can transfer spokes to be processed to the surface polishing mechanism, the detail polishing mechanism and the insert surface processing mechanism respectively. According to the technical scheme of the utility model, the plurality of spokes are arranged on the machine frame and are respectively matched with the spokes to grind and polish the axial end surfaces of the spokes, polish and polish the details on the outer surfaces of the spokes and remove casting material thin layers on the outer surfaces of inserts at the end parts of the spokes of the spokes, so that the process of machining the surfaces of the plurality of spokes can be automatically completed without manual machining, and the machining efficiency is improved. The machining efficiency and the consistency of final products can be improved, and the situation that burrs fly out in the machining process and hurt workers can be avoided. The casting material thin layer on the outer surface of the insert is removed, so that the influence of the casting material thin layer on the outer surface of the insert on the welding quality can be avoided in the subsequent welding process of the spoke and the rim, and the structural strength of a hub product is ensured. The utility model further provides spoke manufacturing equipment and a hub manufacturing system.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheel hub processing equipment, and specifically relates to a wheel spoke surface processing device, wheel spoke manufacturing equipment and a wheel hub manufacturing system. Background Art

[0002] With the increase in product demand and the development of related technologies, composite electric vehicle hubs have emerged, which are beautiful overall, cheaper than traditional all-aluminum hubs, and have better edge strength. There are currently a variety of processes for manufacturing composite hubs, one of which is to use steel strips to manufacture the rim, use aluminum alloy molten liquid casting to form spokes with pre-embedded inserts, and then weld the rim and spokes through the inserts. The main advantage of this manufacturing process is that the manufacturing of the rim and the manufacturing of the spokes are no longer dependent on each other, and the two can be manufactured separately and simultaneously, which can greatly improve the production efficiency of the composite hub.

[0003] However, when die-casting to form spokes, due to factors such as the pressure impact of the mold closing and insufficient clamping force, it is inevitable that the outer surface of the formed spokes will have some burrs. Since the die-casting mold may have a certain dimensional accuracy difference, the outer surface of the formed spokes also has a certain dimensional difference. In addition, due to the dimensional difference of the mold, the surface of the insert at the end of the spoke will also be covered with a thinner aluminum alloy layer, which affects the welding of the insert and the rim. Therefore, after die-casting, the outer surface of the spoke needs to be fine-machined to make its size more accurate, the surface smooth and free of burrs, so that its appearance is more beautiful and it is also conducive to subsequent processing. At present, the fine processing such as end face turning and surface deburring is mainly carried out manually through lathes, etc., which has low production efficiency, and there are inevitably some differences in the technical level and proficiency of workers, which also affects the consistency of the spoke products. Utility Model Content

[0004] The utility model is designed to solve the above problems and aims to provide a spoke surface processing device that can automatically complete the end face grinding, surface deburring and aluminum layer removal of the insert surface of the spoke, thereby improving the production and processing efficiency of the composite wheel hub. The utility model adopts the following technical solutions:

[0005] The utility model provides a wheel spoke surface processing device, which is used for processing the outer surface of a wheel spoke formed by casting, wherein each spoke end of the wheel spoke is embedded with an insert, and is characterized in that it comprises: a surface polishing mechanism, which is used for grinding and polishing the axial outer end surface of the wheel spoke; a detail polishing mechanism, which is used for grinding and polishing the detail of the wheel spoke; an insert surface treatment mechanism, which is used for removing the casting layer attached to the outer surface of the insert; and a wheel spoke transfer mechanism, which is used for taking the wheel spoke to be processed, transferring the wheel spoke to the surface polishing mechanism, the detail polishing mechanism, and the insert surface treatment mechanism respectively, and cooperating to perform corresponding surface processing.

[0006] The spoke surface processing device provided by the utility model may also have such technical features, wherein the surface polishing mechanism includes: a driving motor, a driving wheel, a contact wheel, a tensioning wheel, a tensioning driving cylinder and a sanding belt, the driving wheel is coaxially connected to the output end of the driving motor, the sanding belt is sleeved on the driving wheel, the contact wheel and the tensioning wheel, and the tensioning driving cylinder is used to drive the tensioning wheel to move in a direction away from the driving wheel, thereby tensioning the sanding belt.

[0007] The spoke surface processing device provided by the utility model may also have such technical features, wherein the surface polishing mechanism also includes: a flying wing wheel, coaxially connected to the contact wheel, for grinding and polishing the outer surface of the spoke of the spoke, and the spacing between the contact wheel and the flying wing wheel is smaller than the radius of the spoke.

[0008] The spoke surface processing device provided by the utility model may also have such a technical feature, wherein the detail polishing mechanism is a radial floating file machine.

[0009] The spoke surface processing device provided by the utility model may also have such a technical feature, wherein the insert surface processing mechanism is a rotary milling cutter.

[0010] The spoke surface processing device provided by the utility model may also have such technical features, and also includes: an auxiliary polishing mechanism for auxiliary polishing of the outer surface of the spoke, the surface polishing mechanism and the auxiliary polishing mechanism are respectively arranged on both sides of the spoke transfer mechanism, and the auxiliary polishing mechanism includes: a first support wheel, a second support wheel and a sanding belt, and the sanding belt is mounted on the first support wheel and the second support wheel.

[0011] The spoke surface processing device provided by the utility model may also have such technical features, wherein the spoke transfer mechanism includes: a multi-axis robotic arm; and a spoke grabbing assembly, which is arranged at the end of the multi-axis robotic arm, and includes at least three support members that can move radially along the same central axis so as to approach or move away from each other, and the support members are used to extend into the center hole of the spoke and support the inner wall of the center hole when moving away from each other, so as to grab the spoke.

[0012] The utility model provides a wheel spoke manufacturing device for manufacturing wheel spokes of a composite wheel hub, characterized in that it comprises: a casting device for casting to form the wheel spokes, each spoke end of the wheel spoke being embedded with an insert; and the above-mentioned wheel spoke surface processing device for processing the outer surface of the wheel spoke formed by casting.

[0013] The utility model provides a hub manufacturing system, which is used for manufacturing a composite hub and is characterized by comprising: the above-mentioned spoke manufacturing equipment, which is used for manufacturing spokes.

[0014] Function and effect of utility model

[0015] According to the spoke surface processing device of the utility model, it includes a surface polishing mechanism, a detail polishing mechanism, an insert surface processing mechanism and a spoke transfer mechanism, wherein the spoke transfer mechanism can transfer the spoke to be processed to the surface polishing mechanism, the detail polishing mechanism and the insert surface processing mechanism respectively, and cooperate with them to grind and polish the axial end face of the spoke, grind and polish the details of the outer surface of the spoke, and remove the thin layer of casting material on the outer surface of the insert at the spoke end of the spoke, so that the above-mentioned multi-pass spoke surface processing process can be automatically completed to obtain a spoke with no burrs on the surface, without the need for manual processing through lathes, polishing machines and other equipment, which can improve the efficiency of spoke processing and the consistency of the final spoke product, and can also avoid burrs flying out during processing and causing harm to workers. In addition, since the thin layer of casting material on the outer surface of the insert is removed, in the subsequent welding process of the spoke and the rim, the presence of this thin layer of casting material on the outer surface of the insert can be avoided to affect the welding quality, thereby ensuring the structural strength of the hub product.

[0016] According to the spoke manufacturing equipment and the hub manufacturing system of the utility model, since the spoke surface processing device is adopted, a composite hub with better welding quality can be manufactured more efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional diagram of a spoke surface processing device in an embodiment of the utility model;

[0018] Figure 2 It is a three-dimensional diagram of the partial structure of the spoke surface processing device in the embodiment of the utility model. Figure 1 ;

[0019] Figure 3 It is a three-dimensional diagram of the partial structure of the spoke surface processing device in the embodiment of the utility model. Figure 2 ;

[0020] Figure 4 It is a three-dimensional diagram of the surface polishing mechanism in the embodiment of the utility model;

[0021] Figure 5 It is a three-dimensional diagram of the detail polishing mechanism in the embodiment of the utility model;

[0022] Figure 6 It is a three-dimensional diagram of the auxiliary polishing mechanism in the embodiment of the utility model;

[0023] Figure 7It is a three-dimensional diagram of the surface treatment mechanism of the insert in the embodiment of the utility model;

[0024] Figure 8 It is a three-dimensional wheel spoke in the embodiment of the utility model. Figure 1 ;

[0025] Fig. 9 It is a three-dimensional wheel spoke in the embodiment of the utility model. Figure 2 ;

[0026] Fig.10 It is a three-dimensional diagram of the insert in the embodiment of the utility model.

[0027] Reference numerals:

[0028] Spoke surface processing device 100; housing 110; first loading mechanism 120; first loading platform 121; spoke loading portion 122; spoke transfer mechanism 130; multi-axis robot arm 131; surface polishing mechanism 140; first bracket 141; driving wheel 142; contact wheel 143; tensioning wheel 144; tensioning wheel bracket 145; tensioning driving cylinder 146; sanding belt 147; flying wing wheel 148; auxiliary polishing mechanism 150; second bracket 151; first Support wheel 152; second support wheel 153; detail polishing mechanism 160; file 161; insert surface treatment mechanism 170; milling cutter 171; second carrier mechanism 180; spoke 200; spoke body 210; first end face 210a; second end face 210b; connecting seat 211; spoke 212; spoke end 2121; arc-shaped end face 2121a; insert 220; spoke connecting portion 221; rim connecting portion 222; bottom connecting portion 223. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the utility model easy to understand, the spoke surface processing device, spoke manufacturing equipment and hub manufacturing system of the utility model are specifically described below in combination with embodiments and drawings.

[0030] <Example>

[0031] This embodiment provides a wheel hub manufacturing system for manufacturing a composite wheel hub, which is mainly used in electric vehicles. The rim of the composite wheel hub is made of processed steel strips, the spokes are made of molten aluminum alloy hydraulic casting, and steel inserts are embedded at the ends of the spokes, so that the rims and spokes of different materials can be welded through the inserts.

[0032] The wheel hub manufacturing system includes rim manufacturing equipment, spoke manufacturing equipment, and welding equipment. The rim manufacturing equipment is used to manufacture rims using steel strips as raw materials, and can adopt the structure disclosed in the applicant's previous patent CN217831626U. The spoke manufacturing equipment includes a die-casting device, an insert placement device, an aluminum liquid supply device, a cooling device, and a spoke surface processing device. Except for the spoke surface processing device, other devices can adopt the structure disclosed in the applicant's previous patent CN217858716U. The welding equipment is used to weld the inserts at the spoke ends of the spokes to the inner surface of the rim respectively, thereby forming a composite hub, and can adopt the structure disclosed in the applicant's previous patent CN217859345U.

[0033] The spoke surface processing device of this embodiment is used to process the outer surface of the spoke formed by die casting, so that the outer surface is free of burrs and the size is more accurate. The structure of the spoke surface processing device is based on the structural design of the spoke to be processed, so the structure of the spoke is briefly described below.

[0034] Figure 8 It is the three-dimensional structure of the spoke in this embodiment. Figure 1 .

[0035] Fig. 9 It is the three-dimensional structure of the spoke in this embodiment. Figure 2 , showing stereograms from different angles.

[0036] like Figure 8-Figure 9 As shown, the spoke 200 includes a spoke body 210 and a multi-insert 220 .

[0037] The spoke body 210 includes a connecting seat 211 in the middle and three radial spokes 212. The connecting seat 211 has a through central hole 211a in the middle. The spoke end 2121 of the spoke 212 is arc-shaped and has an arc-shaped end surface 2121a away from the center of the spoke 200.

[0038] In addition, two axial end surfaces of the spoke body 210 are respectively a first end surface 210 a and a second end surface 210 b .

[0039] Fig.10 is a three-dimensional diagram of the insert in this embodiment.

[0040] like Fig.10 As shown, the insert 220 is a sheet-like member that is in a U-shape as a whole. The insert 220 includes a spoke connection portion 221, a rim connection portion 222, and a bottom connection portion 223. The spoke connection portion 221 and the rim connection portion 222 extend from both ends of the bottom connection portion 223 in the width direction in substantially the same direction, respectively, and two bending portions are formed between the spoke connection portion 221 and the bottom connection portion 223 and between the rim connection portion 222 and the bottom connection portion 223.

[0041] The spoke connection part 221 is used to be combined with the spoke body 210 during die casting; the rim connection part 222 is used to be welded with the inner surface of the rim, and has a curvature matching the inner surface of the rim. In the spoke 200, the rim connection part 222 is located at the arc-shaped end surface 2121a of the spoke 200. In addition, through holes, notches, etc. are provided on the spoke connection part 221 and the rim connection part 222 to form a more solid combination with the spoke body 210 during die casting.

[0042] As described above, in this embodiment, the spoke body 210 is made of aluminum alloy, and the insert 220 is made of steel.

[0043] When the above-mentioned spokes are formed by die casting, the formed spoke surface inevitably has some burrs due to the pressure impact of the mold closing and the insufficient clamping force; the formed spoke surface also has a certain size difference due to the poor dimensional accuracy of the mold. The spoke surface processing device of this embodiment is used to grind and remove burrs on the outer surface of the spoke formed by die casting, so that the spoke can better connect to the disc brake / drum brake and make the finished spoke more beautiful.

[0044] In addition, during die casting, due to the dimensional accuracy of the mold, etc., a thin casting layer (a thin layer of aluminum alloy in this embodiment) will also be covered on the outer surface of the insert 220. When the wheel spoke is subsequently welded to the corresponding wheel rim, the casting layer on the surface of the insert 220 will affect the quality of welding. The wheel spoke surface processing device of this embodiment is also used to remove the casting layer on the surface of the insert 220, thereby ensuring the quality of subsequent welding.

[0045] The spoke surface processing device provided in this embodiment will be described in detail below in conjunction with the structure of the spoke described above.

[0046] Figure 1 It is a three-dimensional view of the spoke surface processing device in this embodiment.

[0047] Figure 2 The three-dimensional structure of the spoke surface processing device in this embodiment Figure 1 .

[0048] Figure 3 The three-dimensional structure of the spoke surface processing device in this embodiment Figure 2 To show the internal structure, Figure 2 and Figure 3 The housing structure is omitted.

[0049] like Figure 1 to Figure 3As shown, the spoke surface processing device 100 includes: a housing 110 , a first loading mechanism 120 , a spoke transfer mechanism 130 , a surface polishing mechanism 140 , an auxiliary polishing mechanism 150 , a detail polishing mechanism 160 , an insert surface processing mechanism 170 , and a second loading mechanism 180 .

[0050] The housing 110 is composed of a plurality of protective plates, which are used to protect personnel and other equipment in the production environment, and to prevent burrs and the like from flying out during surface treatment and causing damage to personnel or other equipment. The above-mentioned mechanisms are all arranged in the housing 110. The housing 110 has a lateral access opening 111, which is convenient for external personnel or a robot arm to take the spokes at the spoke surface processing device 100.

[0051] The first loading mechanism 120 is used to place the spokes to be surface treated, and includes a first loading platform 121 and a plurality of spoke loading parts 122 disposed on the surface of the first loading platform 121. The spoke loading parts 122 are used to load the spokes 200 to be processed, so that the surface direction of the spokes 200 is roughly horizontal with the surface, and the second end surface 210b of the spokes 200 faces upward, so as to facilitate the robot arm to pick up. In this embodiment, corresponding to the shape of the spokes 210, each spoke loading part 122 includes three rectangular blocks, and the three spokes 212 of the spokes 210 can be respectively loaded on the three rectangular blocks, so that the spokes 210 are placed roughly horizontally on the first loading platform 121.

[0052] The spoke transfer mechanism 130 is used to take the spokes to be surface treated from the spoke loading mechanism 120 to be processed, and transfer the spokes to each processing mechanism in turn, and transfer the spokes that have completed the surface treatment to the spoke loading mechanism 170 to be transferred. The spoke transfer mechanism 130 includes a multi-axis mechanical arm 131 and a spoke grabbing assembly (not shown in the figure) arranged on the multi-axis mechanical arm 131. In this embodiment, the spoke grabbing assembly includes three support members that can move radially along the same central axis so as to approach or move away from each other, and a cylinder that drives the three support members to move, so that the three support members can extend into the center hole 211a of the spoke 210 in a state of approaching each other, and move away from each other (i.e., open) under the drive of the cylinder, so as to support the inner wall of the center hole 211a and grab the spoke 200. In addition, a rubber buffer is provided at one end of the support member for pressing against the inner wall of the center hole 211a, which can avoid damage to the inner wall of the center hole 211a when it is stretched open, and can also increase the friction between the support member and the inner wall of the center hole 211a, making it easier for the robotic arm to drive the spokes to rotate.

[0053] By gripping the spoke 200 in this way, the two axial end faces and the periphery of the spoke 200 are unobstructed, which facilitates grinding and polishing thereof.

[0054] Figure 4 It is a three-dimensional diagram of the surface polishing mechanism in this embodiment.

[0055] like Figure 4 As shown, the surface polishing mechanism 140 is used to grind and polish the outer surface of the spoke to remove burrs on the two end faces and side faces of the spoke (i.e., the end faces facing each other of two adjacent spokes). The surface polishing mechanism 140 includes a first bracket 141, a driving wheel 142, a contact wheel 143, a tensioning wheel 144, a tensioning wheel bracket 145, a tensioning driving cylinder 146, a sanding belt 147, and a flying wing wheel 148, that is, the surface polishing mechanism 140 is in the form of a sanding belt machine.

[0056] The first bracket 141 includes a supporting vertical plate and a cross bar for mounting the contact wheel 143 .

[0057] The driving wheel 142 is rotatably mounted on the first bracket 141 and connected to a driving motor (not shown in the figure).

[0058] The contact wheel 143 is rotatably mounted on the crossbar of the first bracket 141. Relative to the driving wheel 142, the contact wheel 143 is located above and closer to the spoke transfer mechanism 130. The size of the contact wheel 143 is substantially the same as that of the driving wheel 142.

[0059] The tension wheel 144 is rotatably arranged on the tension wheel bracket 145, and the tension wheel bracket 145 is installed on the output end (piston rod) of the tension driving cylinder 146. The tension wheel 144 is arranged above the driving wheel 142 and the contact wheel 143, and the extension direction of the tension driving cylinder 146 is upward.

[0060] The abrasive belt 147 is mounted on the driving wheel 142, the contact wheel 143 and the tensioning wheel 144. When the tensioning driving cylinder 146 pushes the tensioning wheel 144 upward, the abrasive belt 147 is tensioned; the driving motor rotates the driving wheel 142, driving the abrasive belt 147, the contact wheel 143 and the tensioning wheel 144 to rotate. At this time, the spoke to be processed is pressed onto the rotating abrasive belt 147 at the contact wheel 143 by the mechanical arm, so that the outer surface of the spoke can be ground and polished.

[0061] In this embodiment, the driving wheel 142, the contact wheel 143, and the tensioning wheel 144 are all rubber wheels for sanding belts.

[0062] The flying wing wheel 148 (also called a flap emery cloth wheel, flap sandpaper wheel, etc.) is coaxially connected to the contact wheel 143, and can rotate synchronously with the contact wheel 143 when the contact wheel 143 rotates. The flying wing wheel 148 is close to the contact wheel 143, and the distance between the two is small, which is smaller than the radius of the spoke. The diameter of the flying wing wheel 148 is larger than the contact wheel 143. When the first end face or the second end face of the spoke to be processed is pressed onto the contact wheel 143 by the robotic arm, the spokes of the spokes just contact the emery cloth sheet on the periphery of the flying wing wheel 148. Through the rotation of the flying wing wheel 148, the outer surface of the spokes of the spokes, especially the facing end faces (side faces) of two adjacent spokes, can be ground and polished to remove burrs.

[0063] Figure 5 It is a three-dimensional diagram of the auxiliary polishing mechanism in this embodiment.

[0064] like Figure 5 As shown, the auxiliary polishing mechanism 150 is also used to grind and polish the outer surface of the spoke, and includes a second bracket 151, a first support wheel 152, a second support wheel 153 and an abrasive belt (not shown in the figure).

[0065] The second bracket 151 includes a support plate and a wheel bracket installed on one side of the support plate and extending outward. The first support wheel 152 and the second support wheel 153 are rotatably installed at the two ends of the wheel bracket, and are located in the same vertical direction. The first support wheel 152 and the second support wheel 153 are both rubber wheels for sanding belts, and their sizes are roughly the same. The sanding belt is mounted on the first support wheel 152 and the second support wheel 153.

[0066] The surface polishing mechanism 140 and the auxiliary polishing mechanism 150 are respectively arranged on both sides of the spoke transfer mechanism 130 (robotic arm). In order to reduce the footprint, these mechanisms are arranged relatively compactly. Due to the limitations of the rotation angle and other aspects of the multi-axis robotic arm 131, a small part of the polishing operation can be assisted by the auxiliary polishing mechanism 150.

[0067] Figure 6 It is a three-dimensional diagram of the detail polishing mechanism in this embodiment.

[0068] like Figure 6As shown, the detail polishing mechanism 160 is used to polish the details of the outer surface of the spoke, such as the inner corners of the spoke (such as the intersection of the roots of two adjacent spokes, and the corners of the hollowed-out part when the spoke has a hollowed-out structure), and further remove the burrs of the details that cannot be removed by the wing wheel 148. The detail polishing mechanism 160 is arranged on the top of the first bracket 141. In this embodiment, the detail polishing mechanism 160 is used as a radial floating file machine, and its model is LL-NFL-C-9K0-050. The file 161 of the detail polishing mechanism 160 is in the shape of a long and thin strip and is arranged horizontally. After starting the detail polishing mechanism 160, each detail of the spoke to be polished is moved to the file 161 by the mechanical arm, and the file 161 floats to remove the burrs of the details.

[0069] Figure 7 It is a three-dimensional diagram of the insert surface treatment mechanism in this embodiment.

[0070] like Figure 7 As shown, the insert surface treatment mechanism 170 is used to scrape off the thin layer of casting material (aluminum skin) on the outer surface of the insert at the spoke end (i.e., the surface of the rim connection part of the insert away from the spoke connection part). In this embodiment, the insert surface treatment mechanism 170 is a rotary milling cutter, and a 6# to 8# milling cutter 171 is provided. After the insert surface treatment mechanism 170 is started, the outer surface of the insert at the end of each spoke of the wheel is moved to the milling cutter 171 by the mechanical arm, and the milling cutter 171 scrapes off the thin layer of casting material attached to the outer surface of the insert.

[0071] The second loading mechanism 180 is used to load the spokes that have completed surface processing so that other robot arms or workers can transfer these spokes to the next workstation or warehouse, etc. The second loading mechanism 180 is also disposed in the housing 110 and located at the taking opening 111. Its structure is the same as that of the first loading mechanism 120, and its description is not repeated.

[0072] The spoke surface processing device 100 can be used to process the outer surface of the spoke 200 to obtain a spoke 200 with more accurate end surface dimensions, no burrs on the surface, and no casting layer covering the outer surface of each insert 220 .

[0073] In this embodiment, parts not described in detail are well-known technologies in the art.

[0074] Example Function and Effect

[0075] The spoke surface processing device provided in this embodiment includes a surface polishing mechanism, a detail polishing mechanism, an insert surface processing mechanism and a spoke transfer mechanism, wherein the spoke transfer mechanism can transfer the spoke to be processed to the surface polishing mechanism, the detail polishing mechanism and the insert surface processing mechanism respectively, and cooperate with them to grind and polish the axial end face of the spoke, grind and polish the details of the outer surface of the spoke, and remove the thin layer of casting material on the outer surface of the insert at the spoke end of the spoke, so that the above-mentioned multi-pass spoke surface processing process can be automatically completed to obtain a spoke with no burrs on the surface, without the need for manual processing through lathes, polishing machines and other equipment, which can improve the efficiency of spoke processing and the consistency of the final spoke product, and can also avoid burrs flying out during processing and causing harm to workers. In addition, since the thin layer of casting material on the outer surface of the insert is removed, in the subsequent welding process of the spoke and the rim, the presence of this thin layer of casting material on the outer surface of the insert can be avoided to affect the welding quality, thereby ensuring the structural strength of the hub product. According to the spoke manufacturing equipment and the hub manufacturing system of this embodiment, since the spoke surface processing device mentioned above is adopted, a composite hub with better welding quality can be manufactured more efficiently.

[0076] In the embodiment, the surface polishing mechanism includes a sanding belt, a driving wheel, a contact wheel, a tensioning wheel and a tensioning driving cylinder, so that the sanding belt can be tensioned so that the sanding belt can rotate more smoothly at a predetermined speed, thereby achieving an ideal grinding and polishing effect.

[0077] Furthermore, a wing wheel is coaxially arranged next to the contact wheel. When grinding the axial end face of the spoke, the outer surface of the spoke can be ground and polished at the same time through the nearby wing wheel, especially the side of the spoke. In this way, not only the surface processing efficiency is high, but also the moving path of the robot arm can be avoided from becoming complicated.

[0078] In the embodiment, an auxiliary polishing mechanism is also provided on the other side of the robot arm. Therefore, when the processing machines are arranged closely and some parts of the spokes are difficult to be processed by the surface polishing mechanism due to angle limitations of the robot arm, the side can be flexibly changed for processing.

[0079] In the embodiment, the detail polishing mechanism is a radial floating file machine. The details of the spokes (such as the inner corners) are difficult to deburr by means of a sanding belt or a grinding wheel. However, the floating force of the file of the detail polishing mechanism and the cooperation of the robotic arm can effectively remove the burrs on the details of the spokes and avoid damage to other parts of the spokes.

[0080] In the embodiment, the insert surface treatment mechanism is a rotary file, and the thin layer of casting material on the surface of the insert can be scraped off quickly and effectively through the cooperation of the rotating milling cutter and the mechanical arm.

[0081] In the embodiment, the surface polishing mechanism, detail polishing mechanism, insert surface treatment mechanism, spoke transfer mechanism, etc. are all arranged in the outer shell, and under the control of the processing control mechanism, multiple processes of spoke outer surface processing can be completed fully automatically. Therefore, during the entire processing process, workers do not need to approach the processing mechanism, and metal burrs caused by grinding will not fly out of the outer shell. Therefore, it can protect workers, other equipment and workpieces in the production environment, and the production and processing process is safer.

[0082] The above embodiments are only used to illustrate the specific implementation of the present invention, and the present invention is not limited to the description scope of the above embodiments.

[0083] In the above embodiment, the two support wheels of the auxiliary polishing mechanism are both unpowered wheels, which are processed through the cooperation of a robotic arm (for example, the robotic arm presses the outer surface of the spoke against one of the support wheels and rotates it). In an alternative solution, the two support wheels may also be equipped with corresponding drive motors.

[0084] In the above embodiment, sanding belts and flying wing wheels are used to grind the end faces of the spokes. During the grinding process, heat is generated due to friction on the spoke surface, sanding belts and flying wing wheels. In order to avoid overheating and causing certain effects on the surface quality of the spokes, cooling equipment such as fans can also be arranged next to the sanding belts and flying wing wheels.

[0085] In the above embodiment, the aluminum alloy spoke formed by casting is taken as an example for description, and the spoke has three fan-shaped spokes. It can be understood that the device of the utility model can also be used to perform outer surface processing on other types of spokes formed by other processing methods.

Claims

1. A wheel spoke surface processing device, used for processing the outer surface of a wheel spoke formed by casting, wherein each spoke end of the wheel spoke is embedded with an insert, characterized in that: include: A surface polishing mechanism, used for grinding and polishing the axial outer end surface of the spoke; A detail polishing mechanism, used for grinding and polishing the details of the spokes; An insert surface treatment mechanism, used to remove a casting layer attached to the outer surface of the insert; as well as The spoke transfer mechanism is used to take the spoke to be processed, and transfer the spoke to the surface polishing mechanism, the detail polishing mechanism, and the insert surface treatment mechanism respectively to cooperate in performing corresponding surface processing.

2. The spoke surface processing device according to claim 1, characterized in that: in, The surface polishing mechanism comprises: a driving motor, a driving wheel, a contact wheel, a tensioning wheel, a tensioning driving cylinder and an abrasive belt. The driving wheel is coaxially connected to the output end of the driving motor. The abrasive belt is mounted on the driving wheel, the contact wheel and the tensioning wheel. The tensioning drive cylinder is used to drive the tensioning wheel to move in a direction away from the driving wheel, thereby tensioning the abrasive belt.

3. The spoke surface processing device according to claim 2, characterized in that: in, The surface polishing mechanism further comprises: a flying wing wheel, coaxially connected to the contact wheel, for grinding and polishing the outer surface of the spokes of the wheel. The distance between the contact wheel and the flying wing wheel is smaller than the radius of the wheel spoke.

4. The spoke surface processing device according to claim 1, characterized in that: in, The detail polishing mechanism is a radial floating file machine.

5. The spoke surface processing device according to claim 1, characterized in that: in, The insert surface treatment mechanism is a rotary milling cutter.

6. The spoke surface processing device according to claim 1, characterized in that: Also includes: An auxiliary polishing mechanism is used to perform auxiliary polishing on the outer surface of the spoke, The surface polishing mechanism and the auxiliary polishing mechanism are respectively arranged on both sides of the spoke transfer mechanism. The auxiliary polishing mechanism comprises: a first supporting wheel, a second supporting wheel and an abrasive belt, The abrasive belt is sleeved on the first supporting wheel and the second supporting wheel.

7. The spoke surface processing device according to claim 1, Features: Wherein, the spoke transfer mechanism comprises: Multi-axis robotic arms; and The spoke grabbing assembly is arranged at the end of the multi-axis robot arm, and includes at least three support members that can move radially along the same central axis so as to move closer to or farther from each other. The support member is used to extend into the central hole of the spoke and support the inner wall of the central hole when moving away from each other, so as to grab the spoke.

8. A spoke manufacturing device for manufacturing spokes of a composite hub, characterized in that: include: A casting device, used for casting to form the wheel spokes, wherein each spoke end of the wheel spoke is embedded with an insert; as well as The spoke surface processing device according to any one of claims 1 to 7 is used to process the outer surface of the spoke.

9. A wheel hub manufacturing system for manufacturing a composite wheel hub, characterized in that: include: The spoke manufacturing apparatus according to claim 8, used for manufacturing spokes.

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