Rim binding equipment and rim binding method thereof

Abstract

The invention relates to the technical field of rim binding, in particular to rim binding equipment and a rim binding method thereof.The rim binding equipment comprises a feeding channel, a binding device and a discharging channel; the edge rolling device is located between the feeding channel and the discharging channel. The binding device comprises a mounting frame and a binding mechanism. The edge rolling mechanism comprises a protection plate mechanism, a feeding mechanism, a first rolling mechanism and a second rolling mechanism, wherein the first rolling mechanism and the second rolling mechanism are the same in structure. The feeding mechanism comprises a first telescopic assembly, a second telescopic assembly and a synchronous assembly, wherein the first telescopic assembly and the second telescopic assembly are identical in structure. The device has the advantages that in order to guarantee synchronous movement of the rollers on the two sides, the two sides of the first connecting base and the two sides of the second connecting base are connected through the first rack, the second rack, the third rack and the fourth rack, and when the output force of the first telescopic assembly and the output force of the second telescopic assembly on the two sides are inconsistent, the side with the large force can transmit the force to the other side through the action of the racks and gears; and synchronous movement on two sides is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of rim hemming, and in particular to a rim hemming device and a rim hemming method thereof. Background Art

[0002] During the forming process of the wheel rim, the longitudinal shear end faces on both sides of the rim are not processed, leaving sharp corners and burrs on the edge of the rim. The burrs will cause poor appearance quality of the wheel, and the paint adhesion will be insufficient after painting at the sharp corners. At the same time, these metal burrs are likely to scratch the vehicle tires during installation and vehicle operation, posing a hidden danger to safe driving. In order to deal with such metal burrs, the most traditional method is manual grinding, but this method is inefficient and has high labor costs. Summary of the invention

[0003] In view of this, the present invention aims to provide a rim rolling device and a rim rolling method thereof, in which the rim edge is rolled into a smooth surface by a feeding mechanism and a first rolling mechanism and a second rolling mechanism with the same structure before the rim expansion process.

[0004] To achieve the above-mentioned purpose, the technical solution created by the present invention is implemented as follows: a rim hemming device comprises: a feeding channel, a hemming device and a feeding channel; the hemming device is located between the feeding channel and the feeding channel; the feeding channel is configured to move the rim from the feeding station to the hemming station; the hemming device comprises: a mounting frame and a hemming mechanism, the mounting frame is used to support and install the hemming mechanism; the hemming mechanism comprises a guard plate mechanism, a feeding mechanism and a first rolling mechanism and a second rolling mechanism of the same structure; the guard plate mechanism is used to support the rim to roll and position along a fixed track; the feeding .... The mechanism drives the first rolling mechanism and the second rolling mechanism to move between the initial position and the hemming station; the feeding mechanism includes a synchronous component and a first telescopic component and a second telescopic component with the same structure; the first telescopic component and the second telescopic component are respectively located on both sides of the hemming station and are symmetrically arranged on both sides of the synchronous component, and the first telescopic component and the second telescopic component achieve synchronous movement through the synchronous component; the first rolling mechanism is connected to the first telescopic component, and the second rolling mechanism is connected to the second telescopic component; the first rolling mechanism and the second rolling mechanism are used to roll the two side edges of the rim.

[0005] Furthermore, the first telescopic component includes a first telescopic part, a first movable seat and a first connecting seat; the second telescopic component includes a second telescopic part, a second movable seat and a second connecting seat; the first telescopic part and the second telescopic part are both arranged on the mounting frame, one end of the first movable seat is connected to the output end of the first telescopic part, and the other end of the first movable seat is connected to the first connecting seat; one end of the second movable seat is connected to the output end of the second telescopic part, and the other end of the second movable seat is connected to the second connecting seat; the first movable seat and the second movable seat can be slidably arranged on the mounting frame.

[0006] Furthermore, the synchronization component includes a first gear, a second gear, a first rack, a second rack, a third rack, a fourth rack and a gear shaft; the gear shaft is arranged on a mounting frame and is located at a rolling station, the first gear and the second gear are rotatably mounted on the gear shaft, and the first gear and the second gear are arranged at intervals; the first rack and the second rack are respectively arranged on both sides of the first connecting seat and the second connecting seat; the third rack and the fourth rack are respectively arranged on both sides of the first connecting seat and the second connecting seat; wherein the first rack and the third rack are located on the same side, and the second rack and the fourth rack are located on the same side; the first gear is located between the first rack and the second rack, and meshes with the first rack and the second rack respectively; the second gear is located between the third rack and the fourth rack, and meshes with the third rack and the fourth rack respectively.

[0007] Furthermore, the fixed end of the first rack is connected to the first connecting seat; the fixed end of the second rack is connected to the second connecting seat; the fixed end of the third rack is connected to the second connecting seat; and the fixed end of the fourth rack is connected to the first connecting seat.

[0008] Furthermore, the first rolling mechanism and the second rolling mechanism both include a roller, a rotating shaft and a driving component; the output end of the driving component is hinged to one end of the rotating shaft, and the other end of the rotating shaft is hinged to the roller; the roller of the first rolling mechanism is rotatably disposed on the first telescopic component; the roller of the second rolling mechanism is rotatably disposed on the second telescopic component; the first telescopic component and the second telescopic component respectively drive the first rolling mechanism and the second rolling mechanism to approach or move away from the edge of the rim.

[0009] Furthermore, the rotating shaft includes a first hinge shaft and a second hinge shaft; one of the first hinge shaft and the second hinge shaft has a receiving portion, and a recess is provided on the inner surface of the receiving portion; one end of the other of the first hinge shaft and the second hinge shaft is arranged in the receiving portion, and a protrusion matching the recess is provided on its outer surface.

[0010] Furthermore, the guard plate mechanism includes two guard plates, a width adjustment component and two material blocking mechanisms; the width adjustment component is arranged on the mounting frame, and the two guard plates are respectively connected to the width adjustment components; the width adjustment component is used to adjust the spacing between the two guard plates; the two material blocking mechanisms are respectively arranged on the two guard plates and are located on one side close to the unloading channel, so as to prevent the rim from rolling out of the rolling station.

[0011] Furthermore, it also includes a roller mechanism, which is arranged on both sides of the hemming station for supporting the rim.

[0012] Furthermore, it also includes a kicking mechanism, which is arranged on the roller mechanism and close to one side of the upper material channel; the kicking mechanism is used to roll the rim to the lower material channel.

[0013] A rim hemming method is implemented based on the above rim hemming device, and the specific steps are as follows: S1: The material fork of the feeding channel pushes the rim into the hemming station, and the rim is positioned through the guard plate mechanism and the positioning rollers of the hemming device.

[0014] S2: The first telescopic assembly and the second telescopic assembly respectively drive the first rolling mechanism and the second rolling mechanism to synchronously approach the edge of the rim through the synchronization assembly.

[0015] S3: The driving components of the first rolling mechanism and the second rolling mechanism respectively drive their respective rollers to drive the rim to rotate according to a preset number of circles to complete the rim rolling.

[0016] S4: The material blocking mechanism of the guard plate mechanism retracts, and the kicking mechanism of the rim rolling device extends to roll the rim into the unloading channel.

[0017] Compared with the prior art, the invention can achieve the following beneficial effects: 1) The adjustable angle of the feeding chute makes the connection height between the feeding chute and the hemming device adjustable. At the same time, the tilt setting of the feeding chute makes the rim roll more smoothly. The shifting fork can more effectively control the rolling process of the rim. The first blocking part releases the rim blocking of the feeding station, and the second blocking part can block the next rim to avoid letting go of multiple workpieces at one time.

[0018] 2) The hand wheel of the width adjustment assembly can be used to move the two guard plates toward or away from each other to adapt to rims of different widths.

[0019] 3) To ensure synchronous movement of the rollers on both sides, the first connecting seat and the second connecting seat are connected by the first rack, the second rack, the third rack, and the fourth rack. When the output force of the first telescopic component and the second telescopic component is inconsistent, the side with greater force will be transmitted to the other side through the action of the rack and the gear to ensure synchronous movement of the two sides.

[0020] 4) A pressure wheel assembly is arranged outside the first rack, the third rack, the second rack, and the fourth rack. The pressure wheel assembly will press the first rack, the third rack, the second rack, and the fourth rack tightly against the first gear and the second gear to prevent the first rack, the second rack, the third rack, and the fourth rack from being deformed due to excessive force and disengaged from the first gear and the second gear. At the same time, the first rack, the third rack, and the second rack and the fourth rack are installed in reverse to prevent damage to the linear guide rails under the first moving seat and the second moving seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings: Figure 1 is a schematic diagram of the overall structure of a rim hemming device provided according to an embodiment of the present invention; Figure 2 is a schematic structural diagram of a feeding channel provided according to an embodiment of the present invention; Figure 3 is a schematic structural diagram of a material shifting fork provided according to an embodiment of the present invention; Figure 4 It is a schematic structural diagram of the assembly of a hemming device and a positioning roller according to an embodiment of the present invention; Figure 5 It is a schematic structural diagram of the assembly of a feeding mechanism, a first rolling mechanism, a second rolling mechanism, a positioning roller and a pressing wheel assembly provided in an embodiment of the present invention; Figure 6 It is a schematic structural diagram of the assembly of a feeding mechanism, a first rolling mechanism, a second rolling mechanism, a positioning roller and a pressing wheel assembly according to a first viewing angle provided by an embodiment of the present invention; Figure 7 yes Figure 6 A cross-sectional view of the assembly of the feeding mechanism, the first rolling mechanism, the second rolling mechanism, the positioning roller and the pressing wheel assembly along AA; Figure 8 is a structural schematic diagram of a guard plate mechanism provided according to an embodiment of the present invention; Fig. 9 is a schematic diagram of the structure of a synchronization component provided according to an embodiment of the present invention; Fig.10 Schematic diagram of the structure of a roller mechanism provided according to an embodiment of the present invention.

[0022] The reference numerals include: 1, feeding channel; 11, feeding rack; 12, feeding slide; 13, material shifting fork; 131, material shifting cylinder; 132, material shifting block; 1321, first blocking portion; 1322, second blocking portion; 1323, hinged portion; 133, fixed support; 134, rotating shaft; 2, hemming device; 21, mounting frame; 22, guard plate mechanism; 221, guard plate; 2211, adjustable slide; 222, width adjustment assembly; 2221, first mounting seat; 2222, second mounting seat; 2223, ball screw; 2224, hand wheel; 2225, guide shaft; 223, material blocking mechanism; 2231, material blocking cylinder; 2232, first fixed seat; 2233, second fixed seat; 2234, blocking rod; 23, first telescopic assembly; 231, first telescopic component; 232, third fixed seat; 233, first linear guide rail; 234, first moving seat; 235, first connecting seat; 24, second telescopic assembly; 25, synchronization assembly; 251, first gear; 252, second gear; 253, first rack; 254, second rack; 255, third rack; 256, fourth rack; 257, gear shaft; 26, first rolling mechanism; 261, roller; 262, rotating shaft; 2621, first hinge shaft; 2622, second hinge shaft; 263, roller connecting shaft; 264 , driving component; 27, second rolling mechanism; 28, roller mechanism; 281, screw rod lifter; 282, synchronous shaft; 283, first lifting plate; 284, second lifting plate; 285, first roller assembly; 286, second roller assembly; 287, U-shaped frame; 29, kicking mechanism; 2010, positioning roller; 3, unloading channel; 4, rim; 5, pressure wheel assembly; 51, pressure wheel seat; 52, pressure wheel shaft; 53, pressure wheel. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the invention more clear, the invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the invention and do not constitute a limitation of the invention.

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0028] like Figures 1 to 10 As shown, a rim hemming device provided by an embodiment of the present invention comprises: an upper material channel 1, a hemming device 2 and a lower material channel 3. The hemming device 2 is located between the upper material channel 1 and the lower material channel 3.

[0029] In this embodiment, the position where the rim 4 is rolled is defined as a rolling station, and the feeding station refers to the position of the rim 4 on the loading slide 12 that is adjacent to the rolling station.

[0030] The feeding channel 1 is configured to move the rim 4 from the feeding station to the hemming station. Figure 2 , Figure 3As shown, it includes a loading rack 11, a loading slide 12 and a shifting fork 13. The loading slide 12 is movably connected to the loading rack 11, so that the inclination angle of the loading slide 12 is adjustable. The loading slide 12 is inclined downward at one end close to the hemming device 2 and connected with the hemming device 2. A through shifting hole is provided on the bottom plate of the loading slide 12. The shifting fork 13 is configured to limit the rim 4 located at the feeding station, and when releasing the rim 4 located at the feeding station, it can prevent the next rim 4 from rolling to avoid releasing multiple rims 4 at one time.

[0031] In this embodiment, a connection ear is provided at the connection position between the loading slide 12 and the loading rack 11, and a fixing hole and an arc groove are provided on the connection ear. The loading slide 12 is connected to the loading rack 11 by passing a bolt through the fixing hole and the arc groove. If it is necessary to adjust the inclination angle of the loading slide 12 relative to the loading rack 11, the bolt is loosened and the position of the bolt in the arc groove is adjusted, so that the inclination angle of the loading slide 12 relative to the loading rack 11 can be changed.

[0032] Thus, the adjustable angle of the loading slide 12 makes the connection height between the loading slide 12 and the hemming device 2 adjustable. At the same time, the inclined setting of the loading slide 12 makes the rim 4 roll more smoothly. The shifting fork 13 can more effectively control the rolling process of the rim 4 and avoid releasing multiple rims 4 at one time.

[0033] The material shifting fork 13 includes a material shifting cylinder 131, a material shifting block 132 and a fixed support 133. The material shifting block 132 includes a first blocking portion 1321, a second blocking portion 1322 and a hinged portion 1323. The fixed end of the material shifting cylinder 131 is connected to the material loading rack 11, and the output end of the material shifting cylinder 131 is hinged to the hinged portion 1323. The fixed end of the fixed support 133 is connected to the lower surface of the material loading slide 12. The material shifting block 132 and the fixed support 133 are movably connected through a rotating shaft 134, and the material shifting cylinder 131 drives the material shifting block 132 to reciprocate around the rotating shaft 134, so that the first blocking portion 1321 or the second blocking portion 1322 of the material shifting block 132 extends into the material shifting hole or moves out of the material shifting hole.

[0034] When the output end of the material-digging cylinder 131 is in a retracted state, the first blocking part 1321 extends into the feeding slideway 12 through the material-digging hole to block the rim 4 located at the feeding station. When the output end of the material-digging cylinder 131 extends, the material-digging cylinder 131 drives the material-digging block 132 to rotate around the rotating shaft 134, and the first blocking part 1321 releases the blocking of the current rim 4, while the second blocking part 1322 extends into the feeding slideway 12 through the material-digging hole to push the rim 4 into the hemming station, and at the same time blocks the rear rim 4 from rolling into the hemming station. After the rim 4 rolls into the hemming station, when the output end of the material-digging cylinder 131 retracts, the material-digging cylinder 131 drives the material-digging block 132 to rotate in the opposite direction around the rotating shaft 134, and the second blocking part 1322 moves out of the material-digging hole, and the first blocking part 1321 extends into the feeding slideway 12 through the material-digging hole to block the rim 4 located at the feeding station at this time.

[0035] The hemming device 2 comprises a mounting frame 21 and a hemming mechanism, wherein the mounting frame 21 is used to support and install the hemming mechanism. The hemming mechanism comprises a guard plate mechanism 22, a feeding mechanism, a first rolling mechanism 26, a second rolling mechanism 27, a roller mechanism 28 and a kicking mechanism 29.

[0036] The guard plate mechanism 22 is used to support the rim 4 to roll and position along a fixed track. Figure 8 As shown, it includes two guard plates 221, a width adjustment component 222 and two material blocking mechanisms 223.

[0037] At least two adjustable slideways 2211 are provided on one side of each guard plate 221 facing the rim 4 , and each adjustable slideway 2211 is provided with an elongated hole for adjusting the height.

[0038] The width adjustment assembly 222 includes two first mounting seats 2221, two second mounting seats 2222, two ball screws 2223, two hand wheels 2224 and a guide shaft 2225. The two first mounting seats 2221 are relatively arranged on the mounting frame 21, close to the side of the unloading channel 3. The two second mounting seats 2222 are relatively arranged on the mounting frame 21, close to the side of the loading channel 1. One end of the two ball screws 2223 is respectively connected to the two hand wheels 2224, and the other ends of the two ball screws 2223 are connected through a coupling. Each ball screw 2223 passes through the corresponding first mounting seat 2221 and the guard plate 221. Specifically, each ball screw 2223 is connected to the corresponding first mounting seat 2221 through a seat bearing, and the nut of each ball screw 2223 is connected to the corresponding guard plate 221. The guide shaft 2225 passes through the two guard plates 221 through a self-lubricating bearing, and its two ends are respectively connected to the two second mounting seats 2222. In this embodiment, the threads of the two ball screws 2223 are opposite to each other. When one of the hand wheels 2224 is manually rotated, the two guard plates 221 move toward or away from each other along their corresponding ball screws 2223, thereby adjusting the width between the two guard plates 221 to adapt to rims 4 of different widths. The present invention is provided with two hand wheels 2224 so that the two guard plates 221 can be adjusted from both sides through the hand wheels 2224.

[0039] The two material blocking mechanisms 223 are respectively arranged on the two guard plates 221 and are located on a side close to the material discharge channel 3, and are used to prevent the rim 4 from rolling out of the hemming station. Each material blocking mechanism 223 includes a material blocking cylinder 2231, a first fixed seat 2232, a second fixed seat 2233 and a blocking rod 2234. The first fixed seat 2232 is connected to the guard plate 221, the second fixed seat 2233 is arranged on the first fixed seat 2232, the fixed end of the material blocking cylinder 2231 is connected to the second fixed seat 2233, and the output end of the material blocking cylinder 2231 is connected to the blocking rod 2234.

[0040] Therefore, by setting up the guard plate mechanism 22, not only can the rim 4 roll and be positioned along a fixed track, but also the distance between the two guard plates 221 can be adjusted through the width adjustment component 222 to meet the needs of rims 4 of different sizes, thereby improving the versatility and practicality of the guard plate mechanism 22.

[0041] The feeding mechanism drives the first rolling mechanism 26 and the second rolling mechanism 27 to move between the initial position and the hemming station. The feeding mechanism includes a synchronization component 25 and a first telescopic component 23 and a second telescopic component 24 having the same structure. The first telescopic component 23 and the second telescopic component 24 are respectively located on both sides of the hemming station and are symmetrically arranged on both sides of the synchronization component 25. The synchronization component 25 realizes the synchronous movement of the first telescopic component 23 and the second telescopic component 24.

[0042] In this embodiment, the initial position refers to the position of the first rolling mechanism 26 and the second rolling mechanism 27 before the first telescopic assembly 23 and the second telescopic assembly 24 are not telescoped.

[0043] The first telescopic assembly 23 includes a first telescopic component 231, a third fixed seat 232, a first linear guide rail 233, a first movable seat 234 and a first connecting seat 235. The third fixed seat 232 is fixed to the mounting frame 21, the fixed end of the first telescopic component 231 is connected to the third fixed seat 232, and the output end of the first telescopic component 231 is connected to one end of the first movable seat 234. The other end of the first movable seat 234 is connected to the first connecting seat 235. The first linear guide rail 233 is fixed to the mounting frame 21, and the fixed end of the first movable seat 234 is connected to the slider of the first linear guide rail 233. The first telescopic component 231 drives the first movable seat 234 to slide along the first linear guide rail 233, thereby driving the first connecting seat 235 to move. The first connecting seat 235 has a first accommodating cavity that runs through it.

[0044] The second telescopic assembly 24 includes a second telescopic component, a fourth fixed seat, a second linear guide, a second movable seat and a second connecting seat. The fourth fixed seat is fixed to the mounting frame 21, the fixed end of the second telescopic component is connected to the fourth fixed seat, the output end of the second telescopic component is connected to one end of the second movable seat, and the other end of the second movable seat is connected to the second connecting seat. The second linear guide is fixed to the mounting frame 21, and the fixed end of the second movable seat is connected to the slider of the second linear guide. The second telescopic component drives the second movable seat to slide along the second linear guide, thereby driving the second connecting seat to move. The second connecting seat has a second accommodating cavity that runs through it.

[0045] Synchronous component 25 such as Fig. 9As shown, it includes a first gear 251, a second gear 252, a first rack 253, a second rack 254, a third rack 255, a fourth rack 256 and a gear shaft 257. The gear shaft 257 is arranged on the mounting frame 21 and is located at the hemming station. The first gear 251 and the second gear 252 are rotatably sleeved on the gear shaft 257 through bearings, and the first gear 251 and the second gear 252 are arranged at intervals. The first rack 253 and the second rack 254 are respectively arranged on both sides of the first connecting seat 235 and the second connecting seat. The third rack 255 and the fourth rack 256 are respectively arranged on both sides of the first connecting seat 235 and the second connecting seat. The first gear 251 is located between the first rack 253 and the second rack 254, and meshes with the first rack 253 and the second rack 254 respectively. The second gear 252 is located between the third rack 255 and the fourth rack 256, and meshes with the third rack 255 and the fourth rack 256 respectively. The first rack 253 and the third rack 255 are located on the same side of the first gear 251 and the second gear 252 , and the second rack 254 and the fourth rack 256 are located on the other side opposite to the first rack 253 and the third rack 255 .

[0046] Furthermore, the fixed end of the first rack 253 is connected to the first connection seat 235, the fixed end of the second rack 254 is connected to the second connection seat, the fixed end of the third rack 255 is connected to the second connection seat, and the fixed end of the fourth rack 256 is connected to the first connection seat 235.

[0047] In this embodiment, a pressure wheel assembly 5 is respectively arranged on the outer side of the first rack 253 and the third rack 255 and on the outer side of the second rack 254 and the fourth rack 256. The pressure wheel assembly 5 includes a pressure wheel seat 51, a pressure wheel shaft 52 and a plurality of pressure wheels 53. The pressure wheel seat 51 is connected to the mounting frame 21, the pressure wheel shaft 52 is arranged on the pressure wheel seat 51, and the plurality of pressure wheels 53 are rotatably sleeved on the outside of the pressure wheel shaft 52.

[0048] In order to ensure the synchronous movement of the first rolling mechanism 26 and the second rolling mechanism 27 on both sides, the first connecting seat 235 and the second connecting seat are respectively connected by the first rack 253, the second rack 254, the third rack 255, and the fourth rack 256. The running speed of the first rack 253, the second rack 254, the third rack 255, and the fourth rack 256 is equal to the linear speed of the rotation of the first gear 251 and the second gear 252. When the output forces of the first telescopic assembly 23 and the second telescopic assembly 24 on both sides are inconsistent, the side with greater force will have a tendency to accelerate, and this acceleration tendency will be transmitted to the other side through the first gear 251, the second gear 252 and the corresponding first rack 253 and the second rack 254 or the third rack 25 and the fourth rack 256, thereby ensuring that the first telescopic assembly 23 and the second telescopic assembly 24 move outward or inward synchronously.

[0049] If only one of the first gears 251 and the corresponding first rack 253 and second rack 254 is installed, then in the process of transmitting thrust or receiving tension on the first rack 253 and second rack 254, the force of the first rack 253 and second rack 254 borne by the first connecting seat 235 and the second connecting seat is not in the same straight line as the force of the first telescopic assembly 23 and the second telescopic assembly 24. Therefore, a torque is generated, which may easily cause abnormal wear of the first linear guide 233 under the first moving seat 234 and the second linear guide under the second moving seat. Therefore, another set of second gears 252 and the corresponding third rack 255 and fourth rack 256 need to be installed to balance the torque, and the third rack 255 and fourth rack 256 are installed in the opposite direction to the first rack 253 and second rack 254.

[0050] The pressure wheel assembly 5 outside the first rack 253, the third rack 255, the second rack 254, and the fourth rack 256 will press the first rack 253, the third rack 255, the second rack 254, and the fourth rack 256 against the first gear 251 and the second gear 252 to prevent the first rack 253, the second rack 254, the third rack 255, and the fourth rack 256 from being deformed by excessive force and disengaged from the first gear 251 and the second gear 252. At the same time, the reverse installation of the first rack 253, the third rack 255, the second rack 254, and the fourth rack 256 prevents damage to the first linear guide 233 of the first moving seat 234 and the second linear guide under the second moving seat.

[0051] The first rolling mechanism 26 is connected to the first telescopic assembly 23 , and the second rolling mechanism 27 is connected to the second telescopic assembly 24 . The first rolling mechanism 26 and the second rolling mechanism 27 are used to roll both side edges of the rim 4 .

[0052] The first rolling mechanism 26 and the second rolling mechanism 27 have the same structure. Taking the first rolling mechanism 26 as an example, the first rolling mechanism 26 includes a roller 261, a rotating shaft 262, a roller connecting shaft 263 and a driving component 264. The output end of the driving component 264 is hinged to one end of the rotating shaft 262, the other end of the rotating shaft 262 is hinged to one end of the roller connecting shaft 263, and the roller 261 is sleeved on the other end of the roller connecting shaft 263. The structure of the second rolling mechanism 27 can be obtained in the same way, and will not be described in detail here.

[0053] The roller connecting shaft 263 of the first rolling mechanism 26 is rotatably disposed in the first accommodating cavity of the first connecting seat 235 through a bearing, and the roller connecting shaft of the second rolling mechanism 27 is rotatably disposed in the second accommodating cavity of the second connecting seat through a bearing. The first telescopic component 231 and the second telescopic component drive the first rolling mechanism 26 and the second rolling mechanism 27 to approach or move away from the edge of the rim 4 respectively.

[0054] A U-shaped annular groove or a V-shaped annular groove is provided on the circumference of the roller 261. In the present embodiment, a U-shaped annular groove is provided on the circumference of the roller 261. The U-shaped annular groove is convenient for providing a rolling guide for the edge of the rim 4 to avoid shaking caused by the irregular edge shape when the rim 4 rotates, thereby ensuring that the entire circle of the rim 4 is rolled evenly and at the same time achieving grinding of the edges on both sides of the rim 4.

[0055] Further, the rotating shaft 262 includes a first hinge shaft 2621 and a second hinge shaft 2622. The first hinge shaft 2621 has a receiving portion, and the inner surface of the receiving portion is provided with a recess. The outer surface of the second hinge shaft 2622 is provided with a convex portion adapted to the recess. The connecting end of the second hinge shaft 2622 is hinged to the output end of the driving component 264, the free end of the second hinge shaft 2622 is arranged in the receiving portion, the connecting end of the first hinge shaft 2621 is hinged to the roller connecting shaft 263, and the first hinge shaft 2621 can move along the axial direction of the second hinge shaft 2622.

[0056] The roller mechanism 28 is arranged on both sides of the hemming station to support the rim 4. Fig.10 As shown, it includes two screw lifters 281, a synchronous shaft 282, a first lifting plate 283, a second lifting plate 284, a first roller assembly 285 and a second roller assembly 286. The two ends of the synchronous shaft 282 are respectively connected to the driving shafts of the two screw lifters 281 through a coupling, so that the first roller assembly 285 and the second roller assembly 286 are lifted and lowered synchronously. The first lifting plate 283 is connected to the screw lifter 281 close to the upper material channel 1, and the second lifting plate 284 is connected to the screw lifter 281 close to the lower material channel 3. The first roller assembly 285 is arranged on the first lifting plate 283, and the second roller assembly 286 is arranged on the second lifting plate 284.

[0057] The first roller assembly 285 includes a mounting frame and two first rollers. The mounting frame is connected to the first lifting plate 283, and the two first rollers are spaced apart on the mounting frame.

[0058] The second roller assembly 286 includes a second roller, a third linear guide rail, a screw rod and a nut seat. The screw rod is connected to the second lifting plate 284 through a fixed block. The screw rod is screwed to the nut seat, and the nut seat is connected to the slider of the third linear guide rail. The second roller is connected to the nut seat.

[0059] In this embodiment, the first lifting plate 283 and the second lifting plate 284 are connected at one end close to the hemming station via a U-shaped frame 287, so that the structure of the roller mechanism 28 is more stable.

[0060] Furthermore, the hemming device 2 is also provided with a positioning roller 2010, and the positioning roller 2010 is connected to the gear shaft 257 through a roller seat, and the positioning roller 2010 can rotate freely relative to the roller seat.

[0061] Thus, by adjusting the screw screw lifter 281, the height of the second roller and the first roller is adjusted. At the same time, by adjusting the position of the nut seat on the screw, the distance between the second roller and the first roller is adjusted. The first roller, the second roller and the positioning roller 2010 make the rim 4 located at the hemming station. When replacing the rim 4 of different diameters, adjust the screw screw lifter 281 to make the second roller and the first roller move upward or downward to ensure that the second roller and the first roller fit the rim 4.

[0062] In this embodiment, the model of the screw rod lifter 281 is: SWL-1-P-1-B-II-200, manufacturer: Hangzhou Yu Ke Machinery Co., Ltd.

[0063] The kicking mechanism 29 is arranged on the first lifting plate 283 of the roller mechanism 28. The kicking mechanism 29 includes a kicking cylinder and a kicking block. The kicking cylinder is connected to the first lifting plate 283 through a connecting plate. The output end of the kicking cylinder is connected to the kicking block. The kicking block is located between the two first rollers. When the rim 4 is finished hemming, the output end of the kicking cylinder drives the kicking block to extend and push the rim 4 to the lower feeding channel 3.

[0064] The unloading channel 3 includes an unloading rack and an unloading chute. The height of the unloading rack is lower than that of the loading rack 11. The unloading chute is movably connected to the unloading rack so that the inclination angle of the unloading chute is adjustable. One end of the unloading chute close to the rolling device 2 is higher than the other end away from the rolling device 2.

[0065] A rim hemming method is implemented based on the above rim hemming device, and the specific steps are as follows: S1: The loading channel 1 pushes the rim 4 into the hemming station, and the guard plate mechanism 22 and the positioning roller 2010 of the hemming device 2 realize the positioning of the rim 4. The specific steps are: S11: When the hemming station lacks the rim 4, the material-moving cylinder 131 drives the material-moving block 132 to rotate, and the first blocking portion 1321 releases the blocking of the rim 4 currently located at the feeding station. At the same time, the second blocking portion 1322 extends into the loading slide 12, pushes the rim 4 into the hemming station, and blocks the rear rim 4 from rolling into the hemming station.

[0066] S12: The rim 4 rolls into the hemming station through the adjustable slide 2211 of the guard plate mechanism 22, the material blocking mechanism 223 is in an extended state, and the positioning roller 2010, the first roller assembly 285, the second roller assembly 286 and the blocking rod 2234 realize the positioning of the rim 4.

[0067] S2: The first telescopic assembly 23 and the second telescopic assembly 24 respectively drive the first rolling mechanism 26 and the second rolling mechanism 27 to synchronously approach the edge of the rim 4 through the synchronization assembly 25. The specific steps are as follows: The first telescopic component 231 drives the first connecting seat 235 to move through the first moving seat 234, thereby driving the first rolling mechanism 26 to move toward the edge of the rim 4; at the same time, the second telescopic component drives the second connecting seat to move through the second moving seat, thereby driving the second rolling mechanism 27 to move toward the edge of the rim 4, so that the two side edges of the rim 4 are respectively located in the U-shaped annular grooves of the roller 261 of the first rolling mechanism 26 and the roller of the second rolling mechanism 27. During the movement of the first telescopic component 231 and the second telescopic component, the first telescopic assembly 23 and the second telescopic assembly 24 are synchronized by the synchronization assembly 25.

[0068] S3: The driving component 264 of the first rolling mechanism 26 drives its roller 261 to rotate, and the driving component of the second rolling mechanism 27 drives its roller to rotate, and the two together drive the rim 4 to rotate, so that the rim 4 rotates 3 circles, and the rim 4 completes the hemming. After the rim 4 completes the hemming, the first telescopic component 231 drives the first connecting seat 235 to move through the first moving seat 234, thereby driving the first rolling mechanism 26 away from the edge of the rim 4, and at the same time, the second telescopic component drives the second connecting seat to move through the second moving seat, thereby driving the second rolling mechanism 27 away from the edge of the rim 4.

[0069] S4: the material blocking mechanism 223 of the guard plate mechanism 22 is retracted, and the kicking mechanism 29 of the rim hemming equipment drives the kicking block to extend so that the rim 4 rolls into the unloading channel 3, and the entire rim 4 hemming process is completed.

[0070] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rim hemming device, characterized in that: include: A feeding channel, a rolling device and a feeding channel; the rolling device is located between the feeding channel and the feeding channel; The loading channel is configured to move the rim from the loading station to the hemming station; The hemming device comprises: a mounting frame and a hemming mechanism, wherein the mounting frame is used to support and install the hemming mechanism; The hemming mechanism comprises a guard plate mechanism, a feeding mechanism, and a first rolling mechanism and a second rolling mechanism having the same structure; The guard plate mechanism is used to support the wheel rim to roll and position along a fixed track; The feeding mechanism drives the first rolling mechanism and the second rolling mechanism to move between the initial position and the hemming station; the feeding mechanism includes a synchronization component and a first telescopic component and a second telescopic component with the same structure; the first telescopic component and the second telescopic component are respectively located on both sides of the hemming station and are symmetrically arranged on both sides of the synchronization component, and the first telescopic component and the second telescopic component realize synchronous movement through the synchronization component; The first rolling mechanism is connected to the first telescopic assembly, and the second rolling mechanism is connected to the second telescopic assembly; the first rolling mechanism and the second rolling mechanism are used to roll both side edges of the rim.

2. The wheel rim hemming device according to claim 1, characterized in that: The first telescopic assembly includes a first telescopic component, a first moving seat and a first connecting seat; the second telescopic assembly includes a second telescopic component, a second moving seat and a second connecting seat; The first telescopic component and the second telescopic component are both arranged on the mounting frame, one end of the first movable seat is connected to the output end of the first telescopic component, and the other end of the first movable seat is connected to the first connecting seat; one end of the second movable seat is connected to the output end of the second telescopic component, and the other end of the second movable seat is connected to the second connecting seat; The first movable seat and the second movable seat are slidably arranged on the mounting frame.

3. The wheel rim hemming device according to claim 2, characterized in that: The synchronization assembly includes a first gear, a second gear, a first rack, a second rack, a third rack, a fourth rack and a gear shaft; the gear shaft is arranged on the mounting frame and located at the hemming station, the first gear and the second gear are rotatably sleeved on the gear shaft, and the first gear and the second gear are arranged at intervals; The first rack and the second rack are respectively arranged on both sides of the first connecting seat and the second connecting seat; the third rack and the fourth rack are respectively arranged on both sides of the first connecting seat and the second connecting seat; wherein the first rack and the third rack are located on the same side, and the second rack and the fourth rack are located on the same side; The first gear is located between the first rack and the second rack, and is meshed with the first rack and the second rack respectively; The second gear is located between the third rack and the fourth rack, and is meshed with the third rack and the fourth rack respectively.

4. The wheel rim hemming device according to claim 3, characterized in that: The fixed end of the first rack is connected to the first connecting seat; the fixed end of the second rack is connected to the second connecting seat; the fixed end of the third rack is connected to the second connecting seat; and the fixed end of the fourth rack is connected to the first connecting seat.

5. The wheel rim hemming device according to claim 2, characterized in that: The first rolling mechanism and the second rolling mechanism both include a roller, a rotating shaft and a driving component; the output end of the driving component is hinged to one end of the rotating shaft, and the other end of the rotating shaft is hinged to the roller; The roller of the first rolling mechanism is rotatably disposed on the first telescopic component; the roller of the second rolling mechanism is rotatably disposed on the second telescopic component; the first telescopic component and the second telescopic component respectively drive the first rolling mechanism and the second rolling mechanism to approach or move away from the edge of the rim.

6. The wheel rim hemming device according to claim 5, characterized in that: The rotating shaft includes a first hinge shaft and a second hinge shaft; one of the first hinge shaft and the second hinge shaft has a receiving portion, and a recess is provided on an inner surface of the receiving portion; one end of the other of the first hinge shaft and the second hinge shaft is arranged in the receiving portion, and a protrusion matching the recess is provided on an outer surface thereof.

7. The wheel rim hemming device according to claim 1, characterized in that: The guard plate mechanism includes two guard plates, a width adjustment component and two material blocking mechanisms; the width adjustment component is arranged on the mounting frame, and the two guard plates are respectively connected to the width adjustment components; the width adjustment component is used to adjust the distance between the two guard plates; the two material blocking mechanisms are respectively arranged on the two guard plates and are located on the side close to the unloading channel, so as to prevent the rim from rolling out of the rolling station.

8. The wheel rim hemming device according to claim 7, characterized in that: It also includes a roller mechanism, which is arranged on both sides of the hemming station and is used to support the rim.

9. The wheel rim hemming device according to claim 8, characterized in that: It also includes a kicking mechanism, which is arranged on the roller mechanism and close to one side of the upper material channel; the kicking mechanism is used to roll the rim toward the lower material channel.

10. A rim hemming method, implemented based on the rim hemming device according to any one of claims 1 to 9, comprising the following specific steps: S1: The material fork of the feeding channel pushes the rim into the hemming station, and the rim is positioned by the guard plate mechanism and the positioning rollers of the hemming device; S2: the first telescopic assembly and the second telescopic assembly respectively drive the first rolling mechanism and the second rolling mechanism to synchronously approach the edge of the rim through the synchronization assembly; S3: the driving components of the first rolling mechanism and the second rolling mechanism respectively drive their respective rollers to drive the rim to rotate according to a preset number of circles to complete the rim rolling; S4: the material blocking mechanism of the guard plate mechanism is retracted, and the material kicking mechanism of the rim rolling device is extended to roll the rim into the unloading channel.

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