KR20080080697A - Method for assembling wheel for vehicle - Google Patents

Abstract

A method for assembling a vehicle wheel is provided to improve welding quality and to shorten the manufacturing time by assembling a two-piece wheel through an automation process. A method for assembling a vehicle wheel comprises the steps of peeling an alumite layer formed on an outer peripheral edge of a disk after positioning a disk brush and the outer peripheral edge of the disk to make contact with each other(S1), peeling off an alumite layer formed on an inner peripheral surface of a rim after positioning a rim brush and the inner peripheral surface of the rim to make contact with each other(S2), combining the disk and the rim by contracting the rim(S3), welding the combined disk and rim(S4), and forming an air hole on the rim(S5). In the step of peeling off the alumite layer, the disk is mounted on a disk mounting jig, which is inserted into a hub of the disk.

Description

How to assemble a wheel for a vehicle {METHOD FOR ASSEMBLING WHEEL FOR VEHICLE}

1 is a flow chart of the entire process of the vehicle wheel assembly method according to the invention,

2 is a device diagram used in each process of the wheel assembly method for a vehicle according to the present invention;

3 is a cross-sectional view of the disk peeling apparatus,

4 is a perspective view of the disk peeling apparatus,

5 is a cross-sectional view of the rim peeling apparatus;

6 is a perspective view of a rim peeling device;

7 is a cross-sectional view of the rim and the disc coupling device;

8 is a perspective view of a rim and a disk engaging device;

9 is an overall perspective view of a welding apparatus,

10 is a perspective view of a welded portion of a welding apparatus;

11 is an exploded perspective view of a welded portion of a welding apparatus;

12 is a side view showing the welding operation state of the welding apparatus;

13 is an exploded perspective view of a jig part of a welding apparatus;

14 is a side view of the jig part of the welding apparatus;

15 is an overall state of use of the welding apparatus,

16 is a sectional view of the drilling apparatus.

Explanation of symbols on the main parts of the drawings

100: disk peeling device 110: disk rotation drive unit

112: disc rotation motor 114: disk mounting jig

120: horizontal disk moving unit 122: disk transfer plate

124: first nut block 126: horizontal screw

128: guide rail 130: disc brush

140: disc brush rotation drive unit 142: disc brush rotation motor

144: disc brush rotation axis 150: disc brush vertical moving part

152: vertical movement screw 154: disc brush transfer plate

156: second nut block 200: rim peeling device

201: Support frame 202: Rim brush market

210: rim rotation drive unit 212: rim rotation motor

214: rim rotation disc 216: rim fixing member

220: rim brush 230: rim brush rotating drive unit

232: rim brush rotating motor 234: rim brush rotating shaft

240: first horizontal transfer means 242: horizontal transfer plate

244: horizontal feed guide rod 246: 1st hydraulic actuator

250: second horizontal transfer means 252: rim brush transfer block

254: Rim brush horizontal feed screw 256: Rim brush feed guide

260: rim brush vertical transfer means 262: rim brush vertical transfer screw

264: vertical feed nut block 300: rim disk coupling device

310: tundish 311: hollow shaft

312: drive gear 320: tundish rotary motor

322: motor gear 324: intermediate gear

330: disc support rod 332: second hydraulic actuator

340: push rod 342: third hydraulic actuator

350: heating torch 360: blower

362: blower pipe 400: welding device

401: base frame 402: vertical frame

403: crossbar 410: welding body

412: flexible hose 416: welding torch

420: body transfer means 421: body transfer plate

422: guide rod 423: fourth hydraulic actuator

424 fixed block 430 weld torch transfer member

431: first feed screw 432: first rotation knob

433: welding torch transfer block 434: welding torch transfer nut block

435 guide hole 436 nut ball

436: welding torch feed guide 437: horizontal bar

438: guide side plate 440: clamping member

450: jig part rotation drive unit 451: jig part rotation motor

452: reducer 453: motor pulley

454: reducer pulley 456: rotating shaft

458: pivot axis 460: rotating disk

462: wheel fixing member 470: pivot driving unit

471: 2nd feed screw 472: Jig part pivot nut block

473: bracket 474: second rotation handle

475: unit bearing 480: fine position adjusting member

481: first link block 482: horizontal guide rod

483: second link block 484: vertical guide rod

485: fixing bolt 486: third link block

500: drilling device 510: wheel mounting member

512 disc 514 support pillar

520: drill drill 522: drill body

530: drill feed screw 540: screw mounting frame

542: Drill feed nut block 550: Rec

560: pinion

The present invention relates to a vehicle wheel assembly method, and more particularly, to a method for assembling a completed two-piece wheel by combining the rim and the disk constituting the two-piece wheel.

In general, vehicle wheels are classified into one piece, two piece, and three piece wheels according to the structure. The one-piece wheel is a wheel cast from a mold in a lump of a rim and a disc, and is easy to manufacture and easy to secure rigidity, so that there is little variation in quality, but it is difficult to realize a light weight in technical terms. Two-piece wheels are made of separate rims and discs, or only outer rims, which are welded or bolted together to make parts separate, so that different materials and manufacturing methods can be applied to each part. Various designs and light weights are possible. Three-piece wheel refers to a wheel that bolts and assembles an outer rim, an inner rim, and a disc separately, and is divided into a sandwich type, an overhand type, and an underhand type according to the assembly method. It is replaceable, so it can be installed in many models, and it is possible to be stylish, various designs and light weight.

Among the wheels for vehicles as described above, the two-piece wheel can be applied to a variety of materials and manufacturing methods, as already mentioned, so that various designs and light weight can be mainly employed in luxury cars. However, in the related art, since the manufacturing of the two-piece wheel is made by hand, the work process has been complicated and cumbersome. In addition, precise aligning and welding of the rim and the disk is not made when the precise wheel manufacturing is not guaranteed.

Accordingly, the present invention was devised to supplement the problems of the conventional vehicle wheel, in particular, a two-piece wheel manufacturing method as described above, as well as to assemble the two-piece wheel by automated equipment, as well as accurate alignment and It is an object of the present invention to provide a method for assembling a wheel for a vehicle that can achieve excellent welding quality, can shorten a long production time caused by manual work, and can achieve a process simplification and ease of assembly.

The objects and advantages of the present invention will be described in more detail below, and will be further embodied by the examples. Further objects and advantages of the invention may be realized by the means indicated in the claims and combinations thereof.

In the method of assembling the vehicle wheel according to the present invention for achieving the above object, the disc brush 130 and the disc outer circumferential surface are aligned so as to contact each other, and then the disc and the disc brush 130 are rotated to rotate the disc outer circumferential surface. A disk peeling step (S1) for peeling the anodized layer at the edge; A rim peeling step (S2) of aligning the rim brush 220 and the rim inner circumferential surface to be in contact with each other, and then rotating the rim and the rim brush 220 to peel off the alumite layer of the rim inner circumferential surface; Mount the rim on the tundish 310, and as the tundish 310 is rotated to expand the rim by heating with a heating torch 350 from the outside while rotating the rim mounted thereon, Inserting the disc into the inside of the rim, and cooling and shrinking the rim as the air is blown through the blower 360 to coalesce the disc with the rim (S3); Mounting the combined disk and the rim on a rotating disc 460 and rotating the same; and welding and aligning a welding torch 416 at a coupling part of the disk and the rim (S4); After the combination of the welded disk and the rim is fixed to the wheel mounting member 510, the drill drill 520 is positioned to contact the outer circumferential surface of the rim, and the drill drill 520 is rotated while pressing the rim surface to the rim surface. It characterized in that it comprises a step (S5) for drilling the air hole.

At this time, in the disk peeling step, the disk is mounted to the disk mounting jig 114 is fixed to the hub of the disk, the disk mounting jig 114 is coupled to the motor shaft of the disk rotation motor 112 Self-rotating by the drive of the disk rotation motor 112, the motor shaft of the disk rotation motor 112 is coupled through the disk transfer plate 122 provided with a first nut block 124 in the lower portion, The first nut block 124 is coupled to the horizontal screw 126 having a screw thread on the outer circumferential surface, the thread of the horizontal screw 126 by the rotation of the horizontal screw 126 and the first nut block As the threads of 124 interact with each other, the disk transfer plate 122 is moved in the horizontal direction so that the horizontal position of the disk is aligned.

In addition, in the disc peeling step, the disc brush 130 is rotatably coupled to the front end of the disc brush rotation shaft 144 is connected to the disc brush rotation motor 142 and the belt, the disc brush rotation motor 142 It rotates itself according to the driving of the disc brush rotation motor 142 and the disc brush rotation shaft 144 is mounted on the disc brush transfer plate 154, the second brush block 156 to the disc brush transfer plate 154 Is provided, the second nut block 156 is screwed to the vertical movable screw 152 mounted upright, the disk brush transfer plate 154 is moved in the vertical direction in accordance with the rotation of the vertical movable screw 152 The vertical position of the disc brush 130 is aligned.

And, in the rim peeling step, the rim is fixed to the motor shaft of the rim rotation motor 212 is mounted on the rim rotation disc 214 that is rotated by the drive of the rim rotation motor 212 is self-rotating The rim brush 220 is coupled to the front end of the rim brush rotating shaft 234 connected to the rim brush rotating motor 232 and the belt is self-rotated by the drive of the rim brush rotating motor 232.

Here, the rim brush rotating motor 232 and the rim brush rotating shaft 234 is mounted to the rim brush transfer block 252, the rim brush horizontal transfer screw 254 is screwed through, the rim brush horizontal transfer screw ( The rim brush transfer block 252 is horizontally moved along the rim brush transfer guide 256 according to the rotation of the 254 to adjust the horizontal position of the rim brush 220.

And, the rim brush transfer guide 256 is mounted on the rim brush mounting frame 202, the rim brush mounting frame 202 is rotatably mounted a rim brush vertical transfer screw 262 having a thread on the outer peripheral surface The vertical side of the rim brush transfer guide 256 is provided with a screw thread on the inner circumferential surface of the vertical transfer nut block 264 to which the rim brush vertical transfer screw 262 is screwed, and the rim brush vertical transfer screw is provided. The rim of the rim brush vertical transfer screw 262 and the thread of the vertical transfer nut block 264 interact with each other to rotate the rim brush transfer guide 256 in the vertical direction. The vertical position of the brush 220 is aligned.

In addition, the rim brush mounting frame 202 is supported on the horizontal transfer plate 242 provided at the bottom, the horizontal transfer plate 242 is bent at both ends vertically and the horizontal transfer guide rod 244 is penetrated and the horizontal conveying plate 242 is slid along the horizontal conveying guide rod 244 by expansion or contraction of the first hydraulic actuator 246 so that the horizontal position of the rim brush 220 is Aligned.

On the other hand, in the step of merging the disk and the rim, the rim is rotatably mounted on the tundish 310, the disk is movable in the vertical direction by the second hydraulic actuator 332 from the bottom and the tip is Supported by the disk support rod 330 is fixed to the hub of the disk, and is heated and expanded by heating the outer peripheral surface of the rim with the heating torch 350, is moved in the vertical direction in accordance with the operation of the third hydraulic actuator 342 Pressing the front end of the disk support rod 330 with a push rod 340 to lower the disk to the engaging portion inside the rim, and then cooling the rim to coalesce the disk and the rim.

In addition, the drilling drill 520 is rotatably mounted to the tip of the drill body 522, the motor is built to provide a rotational force of the drilling drill 520, the drill transfer nut block (522) 542 is provided, the drill feed nut block 542 is mounted upright by the screw mounting frame 540 and the drill feed screw 530 having a screw thread on the outer peripheral surface is screwed, the drill feed screw 530 By the interaction of the thread of the drill feed nut block 542 and the thread of the drill feed screw 530 in accordance with the rotation of the drill body 522 is moved in the vertical direction and the vertical position of the drill drill 520 is aligned. .

In addition, the lower portion of the screw mounting frame 540 is provided with a rack 550, the lower portion of the rack 550 is provided with a pinion 560, the rack 550 according to the rotation of the pinion 560 and its The screw mounting frame 540 located in the upper portion is moved in the horizontal direction to align the horizontal position of the drilling drill 520 and simultaneously pressurizes the rim surface.

Hereinafter, the process steps of the vehicle wheel assembly method according to the present invention and the detailed configuration of the devices used in each process will be described in detail with reference to the accompanying drawings.

1 is an overall process flow chart of a vehicle wheel assembly method according to the invention, Figure 2 is a device diagram used in each process of the vehicle wheel assembly method according to the invention. As shown, the wheel assembly method for a vehicle according to the present invention includes a disk peeling step, a rim peeling step, a rim and a disk coalescing step, a welding step, and an air hole drilling step.

The disk peeling step is a step of peeling the welded portion of the disk, more specifically the outer peripheral surface of the disk of the vehicle wheel to be assembled. In this step, the outer peripheral surface of the edge of the disk is peeled off by the disk peeling apparatus 100 shown in FIG. 3 shows a cross-sectional view of such a disk peeling apparatus 100, and FIG. 4 shows a perspective view of the disk peeling apparatus 100.

As shown in FIGS. 3 and 4, the disk peeling apparatus 100 includes a disk rotation driving unit 110, a disk horizontal moving unit 120, a disk brush 130, a disk brush rotation driving unit 140, and a disk. Brush vertical moving part 150 is included.

The disk rotation driving unit 110 is coupled to the disk rotation motor 112 and the motor shaft of the disk rotation motor 112 from the lower side and inserted into the hub of the disk from the upper side disk mounting jig 114 for fixing the disk Include. The motor shaft of the disc rotation motor 112 is installed through the center portion of the disc transfer plate 122 to be described later. On the other hand, the distal end of the disk mounting jig 114 protrudes through the hub of the disk and fastens the disk with the disk mounting jig 114 by fastening a clamp C or the like thereto. Through such a configuration, when the disk rotation motor 112 is rotated, the disk holding jig 114 connected to the motor shaft and the disk coupled thereto are rotated together.

The disk horizontal moving part 120 includes a disk transfer plate including a first nut block 124 having a groove formed with a screw thread on an inner circumferential surface thereof through a motor shaft of the disk rotating motor 112 at a center thereof. 122 and a thread thread coupled to the first nut block 124 of the transfer plate, the outer peripheral surface of which is engaged with a screw thread of the first nut block 124, and the disk transfer plate according to its own rotation. And a horizontal moving screw 126 that moves 122 horizontally. In addition, both sides of the disc transfer plate 122 is provided with guide rails 128 for guiding the disc transfer plate 122 when it is moved horizontally. Through this configuration, when the operator rotates the horizontal screw 126, the thread of the horizontal screw 126 and the thread of the first nut block 124 engaged with it interact with each other, so that the disk transfer plate 122 It is moved in the horizontal direction. As the disc transfer plate 122 is moved, the disc rotating motor 112 and the disc holding jig 114 and the disc mounted thereon are moved together.

The disc brush 130 is provided with a hard grinding wheel or a polishing brush around the outer circumferential surface to perform a function of flattening the surface to be welded by peeling off the alumite layer as the edge portion of the disc is polished by friction. The disk brush 130 is itself rotated by the disk brush rotation drive unit 140 to be described later for this polishing operation.

The disc brush rotation driving unit 140 is connected to the disc brush rotation motor 142 providing a rotational force to the disc brush 130, one end is connected to the disc brush rotation motor 142 and the belt and the other end of the disc brush 130 includes a disc brush rotating shaft 144 is mounted. Through such a configuration, when the disc brush rotation motor 142 is rotated, the rotational force is transmitted to the disc brush rotation shaft 144 connected with the belt, and, accordingly, the disc brush rotation shaft 144 is fixed to its end by the rotation of the disc brush rotation shaft 144. The disc brush 130 is rotated.

The disk brush vertical movement unit 150 is a portion for moving the disk brush 130 in the vertical direction, and the disk brush 130 of the disk and disk brush 130 so that the disk brush 130 can be accurately positioned on the outer peripheral surface portion of the disk. It serves to adjust the height. The disc brush vertical movement unit 150 includes a vertical movement screw 152, a disc brush transfer plate 154, and a second nut block 156.

The disc brush rotating motor 142 and the disc brush rotating shaft 144 are mounted to the disc brush transfer plate 154, and the disc brush transfer plate 154 is provided with a second nut block 156. The two nut blocks 156 are screwed to the vertically moved vertical screw 152, the disk brush transfer plate 154 is moved in the vertical direction in accordance with the rotation of the vertical movable screw 152, the disk brush 130 ) Vertical position is aligned.

Now, the disk peeling method by the disk peeling apparatus 100 will be described. First, the horizontal moving screw 126 is rotated to horizontally move the disk in the direction in which the disk brush 130 is mounted. Then, the vertical movement screw 152 is rotated to vertically move the disc brush 130 so that the disc brush 130 and the edge portion of the disc are in contact with each other. Such a positional alignment between the disc and the disc brush 130 is repeatedly performed until the part to be peeled off and the disc brush 130 are aligned to an optimal position. When the disk and the disc brush 130 are aligned with each other, as the disc rotating motor 112 is rotated to rotate the disc, while the disc brush rotating motor 142 is operated to rotate the disc brush 130, The outer peripheral surface of the disc edge is continuously peeled off. Therefore, in the present disk peeling step, the surface of the outer peripheral surface of the edge of the disk to be welded through the disk peeling apparatus 100 is peeled off so that burrs and the like are removed and the surface is flattened.

When the disk peeling is completed, the rim peeling step is entered. The rim peeling step is a step of peeling a welded portion of the rim of the vehicle wheel to be assembled, more specifically, an inner peripheral surface portion of the rim into which the disk is fitted. In this step, the inner main surface of the rim is peeled off by the rim peeler 200. FIG. 5 is a cross-sectional view of such a rim peeling device 200, and FIG. 6 is a perspective view of the rim peeling device 200.

The rim peeling device 200 includes a rim rotation driving unit 210, a rim brush 220, a rim brush rotation driving unit 230, a first horizontal transfer unit 240, and a second horizontal transfer unit 250. .

The rim rotation driving unit 210 is a portion for rotating the rim of the wheel for the vehicle to be assembled, the rim rotation motor 212 is installed in the lower workbench located on one side of the support frame 201 to provide a rotational force, and the worktable A rim rotating disc 214 connected to a motor shaft of a rim rotating motor 212 penetrating the work table and a rim fixing member fixed to a rim mounted on the rim rotating disc 214. 216). Here, the rim fixing member 216 is installed on the lower inner and outer sides of the mounted rim to prevent the rim from flowing, it is preferably composed of a bolt or the like. Through this configuration, the rim rotation disc 214 connected thereto is rotated according to the driving of the rim rotation motor 212, whereby the rim fixed on the rim rotation disc 214 is rotated.

The other side of the support frame 201 is supported by the rim brush mounting frame 202. The rim brush refitting frame 202 is a part to which the components for position adjustment of the rim brush 220 and the rim brush 220 which will be described later are mounted.

The rim brush mounting frame 202 is configured to be movable in a horizontal direction on the support frame 201. To this end, a first horizontal conveying means 240 is provided between the support frame 201 and the rim brush mounting frame 202. The first horizontal transfer means 240 includes a horizontal transfer plate 242, a horizontal transfer guide rod 244, the first hydraulic actuator 246.

The horizontal conveying plate 242 is a portion for supporting the rim brush market mounting frame 202 at the bottom of the sock end is bent vertically downward, the horizontal transfer guide rod 244 is installed through. The horizontal transfer guide rod 244 is fixed to the support frame 201 by a plurality of guide rod fixtures.

The first hydraulic actuator 246 is composed of a cylinder and a rod and is contracted or expanded by hydraulic pressure to move the horizontal transfer plate 242 in the horizontal direction. One end of the first hydraulic actuator 246 is fixed to the support frame 201, the other end is connected to the horizontal transfer plate 242.

Through the above configuration, as the first hydraulic actuator 246 contracts or expands, the horizontal conveying plate 242 is moved horizontally while sliding along the horizontal conveying guide rod 244, and as a result, the rim The rim brush 220 installed in the brush mounting frame 202 is moved horizontally to adjust the horizontal position with the rim to be peeled off.

The rim brush 220 is provided with a hard grinding wheel or a polishing brush around the outer circumference to polish the inner circumference of the rim by friction to perform a function of peeling the alumite layer to flatten the surface to be welded. The rim brush 220 is itself rotated by the rim brush rotating drive unit 230 to be described later for this polishing operation.

The rim brush rotation driving unit 230 is a rim brush rotation motor 232 to provide a rotational force, one end is connected by the rim brush rotation motor 232 and the belt and the other end is mounted with the rim brush 220 A rim brush rotating shaft 234 is rotated according to the driving of the rim brush rotating motor 232.

The rim brush rotation driving unit 230 is also configured to be horizontally moved by the second horizontal transfer means 250, and as a result, the rim brush 220 is also horizontally moved. The second horizontal transfer means 250 includes a rim brush transfer block 252, a rim brush horizontal transfer screw 254, and a rim brush transfer guide 256.

The rim brush transfer block 252 is a portion that is horizontally moved while supporting the rim brush rotation driving unit 230, that is, the rim brush rotation motor 232 and the rim brush rotation shaft 234. As shown, the rim brush transfer block 252 is horizontally moved by the rim brush horizontal transfer screw 254. That is, the center of the rim brush transfer block 252 is provided with a threaded hole corresponding to the thread of the rim brush horizontal transfer screw 254, the rim brush horizontal transfer screw 254 is screwed therein . Through such a configuration, when the rim brush horizontal transfer screw 254 is rotated, the thread of the outer circumferential surface and the thread of the rim brush transfer block 252 interact with each other to move the rim brush transfer block 252 in the horizontal direction. will be. A rim brush transfer guide 256 is connected to the rim brush transfer block 252 for the safe movement of the rim brush transfer block 252. The rim brush transfer guide 256 is provided with a side plate rotatably supporting one end of the rim brush horizontal feed screw 254 on one side, and horizontally extending rods are protruded on both sides of the side plate, and the rod is the rim brush. It is configured to penetrate the transfer block 252. Accordingly, the rim brush transfer block 252 is moved while sliding along the rod portion of the rim brush transfer guide 256.

The second horizontal moving means is movable in the vertical direction. To this end, the rim brush mounting frame 202 is provided with a rim brush vertical transfer means 260. The rim brush vertical transfer means 260 includes a rim brush vertical transfer screw 262 and a vertical transfer nut block 264. The rim brush vertical transfer screw 262 and the vertical transfer nut block 264 have the same configuration as other screw and nut blocks already mentioned, and detailed description thereof will be omitted. However, the vertical transfer nut block 264 is connected to the side plate of the rim brush transfer guide 256 to vertically move the second horizontal movement means in accordance with the rotation of the rim brush vertical movement screw, and thus, the rim brush ( 220 is also moved together.

Now, the edge peeling method of the rim by the rim peeling apparatus 200 will be described. First, the rim to be peeled off is fixedly mounted on the rim rotating disc 214 using the rim fixing member 216. Then, the first hydraulic actuator 246 of the first horizontal transfer means 240 is operated to move the horizontal transfer plate 242 along the horizontal transfer guide rod 244 in a sliding manner. Accordingly, the rim brush 220 is located near the rim. In order to precisely adjust the position of the rim brush 220, the rim brush vertical transfer screw 262 is rotated to move the second horizontal movement means and the rim brush 220 connected thereto in the vertical direction. Accordingly, the vertical position between the rim brush 220 and the rim is adjusted. Thereafter, the rim brush transfer block 252 is moved to the rim brush transfer block 252 by rotating the rim brush horizontal transfer screw 254 so that the outer circumferential surface of the rim brush 220 is in contact with the portion to be peeled off the inner circumferential surface of the rim. Horizontally move along. This position adjustment operation is repeatedly performed until the rim brush 220 is accurately positioned on the inner circumferential surface of the rim to be peeled off. When the position adjustment is completed, the rim rotation motor 212 is rotated to rotate the rim rotation disk 214. Then, the rim fixed to the rim rotation disk 214 is also rotated. In addition, the rim brush rotating motor 232 is driven to rotate the rim brush rotating shaft 234. Accordingly, the rim brush 220 rotates itself to peel off the rim inner circumferential surface surface by friction, and since the rim is rotated, the entire circumference of the rim inner circumferential surface is continuously peeled off. Therefore, in the rim peeling step, the surface of the inner circumferential surface portion of the rim to be welded through the rim peeling apparatus 200 is peeled off, burrs are removed, and the surface is flattened.

When the peeling operation of the disk and the rim is completed by the above-described method, the rim and the disc coalescing step are entered. The rim and disc coalescing step is a step of integrating the disc by inserting the disc into the inner circumferential surface of the rim by expanding / contracting the rim by heating and cooling. In general, the disc is fitted to the inner circumferential surface of the rim, and the rim and the disc must be fitted very tightly for a firm fit. Thus, the diameter of the rim and the diameter of the disc differ only by the amount of play that allows the disc to fit on the rim. In this case, when the disc is manually inserted into the rim by the operator, the diameter difference between the rim and the disc is not large. Therefore, it is not easy to fit the rim to the inner circumference of the disc. Damage can be done. Therefore, in this step, in order to solve this problem, the rim is heated and expanded, and then the disc is inserted and contracted again to tightly couple the rim and the disc without play.

FIG. 7 is a cross-sectional view of a rim disc coupling device 300 for hermetically coupling such a disc and a rim, and FIG. 8 is a perspective view of the rim disc coupling device 300.

As shown, the rim disk coupling device 300 is a tundish 310, a tundish rotary motor 320, a disk support rod 330, a push rod 340, a heating torch 350, a blower 360 It includes.

The tundish 310 is a part that is rotated while mounting the rim, the upper portion is composed of a disc-shaped plate, the lower portion of the hollow shaft 311 is formed, the drive around the end edge of the hollow shaft 311 Gear 312 is provided.

The tundish 310 is rotated by the tundish rotary motor 320. A motor gear 322 is formed on the motor shaft of the tundish rotary motor 320, and the motor gear 322 and the drive gear 312 below the tundish 310 are connected by a chain. When the tundish rotary motor 320 is driven, the tundish 310 is rotated. An intermediate gear 324 for controlling the rotation speed of the tundish 310 may be provided between the motor gear 322 and the driving gear 312.

The disc support rod 330 is penetrated through the tundish 310 from the bottom. The disc support rod 330 is connected to the lower end of the second hydraulic actuator 332, the other end extends through the tundish 310 through the hollow shaft 311 of the tundish 310, the end of the disc It is configured to be fitted to the hub. According to the operation of the second hydraulic actuator 332, the disk support rod 330 is movable in the vertical direction while supporting the disk.

On the other hand, the push rod 340 is provided on the upper side of the support rod for supporting the disk, the upper end of which is connected to the third hydraulic actuator 342, can move in the vertical direction in accordance with the operation of the third hydraulic actuator 342 Is configured.

The heating torch 350 is a component for heating around the outer rim of the rim to inflate the rim, and blows the flame formed by the ignition device toward the outer rim of the rim.

Meanwhile, the blower 360 blows air or cold air at room temperature and is heated by the heating torch 350 to cool down the expanded rim. The blower 360 is connected to the blower tube 362 to cool the outer circumference of the rim. .

Now, a method of merging a rim and a disc by the rim disk combining apparatus 300 will be described.

First, the rim is fixed on the tundish 310, and the disk is mounted on the disc support rod 330. In this case, the second hydraulic actuator 332 is expanded to some extent so that the disk floats on the upper portion of the rim, and the third hydraulic actuator 342 is in a contracted state so that the push rod 340 does not come into contact with the disk. When the tundish rotary motor 320 is driven, the tundish 310 is rotated and the rim mounted thereon is rotated. Now, the heating torch 350 is operated to heat around the rim outer circumferential surface. After a certain period of time, if the rim expands enough to fit the disk, the heating torch 350 is turned off and the tundish rotary motor 320 is stopped. Next, the third hydraulic actuator 342 is operated to move the push rod 340 downward to push the disk downward. More specifically, the push rod 340 is pressed to the front end of the disk support rod 330 is exposed to the hub of the disk, thereby, the disk is lowered, that is, lowered into the rim. When the push rod 340 pressurizes the disc support rod 330, the second hydraulic actuator 332 contracts gradually, thereby reliably buffering the disc. When the disk reaches a position to be engaged with the rim, that is, a part peeled around the inner circumferential surface of the rim, the operation of the third hydraulic actuator 342 and the second hydraulic actuator 332 is stopped, and the disk is fixed at that position. do. Then, the blower 360 is operated to cool the rim while blowing air or cold air at room temperature through the blower tube 362. The rim shrinks while being cooled by the cold wind, and is in tight contact with the outer circumferential surface of the disk. When the airtight coupling of the rim and the disc is confirmed, the blower 360 is stopped, whereby the coalescing step ends.

When the rim and disc coalescing step is completed, the welding step is entered. The welding step is a step of firmly fixing between the rim and the disk by arc welding. 9 is a perspective view of a welding apparatus 400 used in this step.

As shown, the welding device 400 includes a base frame 401, a welding portion (W) and a jig portion (J).

The base frame 401 is a skeleton supporting the jig part J and the welding part W from the bottom, and is a metal frame having a generally long rectangular shape. The base frame 401 is placed on the ground and supports the jig portion J and the weld portion W, which will be described later, while maintaining balance.

The welding portion (W) is supported on one side of the base frame 401. As shown in the drawing, the welding part W includes a welding hose 410 and a flexible hose 412 connected to the welding main body 410, and a welding torch connected to an end of the flexible hose 412 to weld a base material. 416. Although not shown, the welding main body 410 is provided with a wire feeding device, whereby a metal wire is supplied to the welding torch 416 through the flexible hose 412, and an inert gas supply device is provided. Is provided, it is configured to supply an inert gas such as argon to the welding torch 416 through the flexible hose 412. The configuration of the welding portion W is a general configuration in the ordinary arc welding, in particular, an argon welding machine using argon as an inert gas, and further detailed description thereof will be omitted.

However, the welding portion (W) of the welding device 400 used in this step further includes a main body transfer means 420, a welding torch transfer member 430, the clamping member 440.

The main body transfer means 420 is a portion for moving the welding main body 410 closer to the wheel mounted on the jig portion (J) to be described later, integrally formed on the lower portion of the welding main body 410, or separately The main body transfer plate 421 and the main body transfer plate 421 having a bent portion which is bent and extended vertically downward at both ends thereof are formed to penetrate the bent portion of the main body transfer plate 421 to be fastened and fixed. It includes a guide rod 422 for guiding the horizontal movement. The guide rod 422 is fixed to the base frame 401 by a plurality of fixing blocks 424.

In addition, the main body transfer means 420 is provided with a fourth hydraulic actuator 423 for moving the main body transfer plate 421. The fourth hydraulic actuator 423 is composed of a hydraulic cylinder and a rod, the end of the hydraulic cylinder is fixed to the base frame 401, the end of the rod is fixed to the body transfer plate 421.

When the fourth hydraulic actuator 423 is contracted or expanded by hydraulic pressure, and the rod is retracted, the main body transfer plate 421 coupled to the end of the rod is moved along the guide rod 422, and thus, the main body transfer is performed. The welding main body 410 located on the plate 421 is moved. Through this configuration, the approximate distance between the welding torch 416 and the wheel mounted on the jig portion J to be described later is adjusted.

The clamping member 440 is configured with a tong shape, or is composed of an arc-shaped ring corresponding to the shape of the outer circumferential surface of the welding torch 416, while holding the outer circumferential surface of the welding torch 416, the other side is horizontal direction It is formed to extend for a long time.

10 to 12, the welding torch conveying member 430 linearly moves the welding torch 416 gripped by the clamping member 440 and at the distal end angle of the welding torch 416. The adjusting part includes a welding torch transfer guide 436, a welding torch transfer block 433, a first transfer screw 431, and a first rotation knob 432.

The welding torch transfer guide 436 includes a horizontal bar 437 and a guide side plate 438. The horizontal bar 437 is a part for guiding the welding torch transfer block 433 to be described later when moved in the horizontal direction by the first transfer screw 431, is generally a long rod-shaped member and is provided with two upper and lower. The horizontal bar 437 is supported by the guide side plate 438 at its side, and the guide side plate 438 is fixed to the side of the welding base 410.

The welding torch conveying block 433 is a portion that is horizontally moved along the welding torch conveying guide 436, as shown, is composed of a generally long rectangular plate member, the inside of one or more weld torch conveying Nut block 434 is provided. The welding torch transfer nut block 434 is protruded to the inside of the welding torch transfer block 433, the side of the guide hole 435 through which the horizontal bar 437 of the welding torch transfer guide 436 is penetrated. A nut hole 436 having a screw thread on an inner circumferential surface thereof is formed in the center of the side portion thereof. The welding torch transfer nut block 434 may be integrally formed with the welding torch transfer block 433, or may be configured as a separate member and fixedly coupled by a fastening means.

The welding torch transfer guide 436 and the welding torch transfer block 433 are integrated with each other by the horizontal bar 437. That is, the horizontal bar 437 is assembled by inserting the guide hole 435 of the welding torch transfer nut block 434 and fixing the guide side plate 438 at both ends of the horizontal bar 437. Then, the guide side plate 438 is fixedly fastened to the side portion of the welding base 410.

Meanwhile, the welding torch transfer block 433 is transferred along the horizontal bar 437 of the welding torch transfer guide 436 by the first transfer screw 431. The first feed screw 431 is provided with a screw thread on the outer circumferential surface and is coupled to the guide side plate 438 and the nut hole 436 of the welding torch feed nut block 434 sequentially and coupled to the outer end of the first feed screw 431. Rotation knob 432 is provided. Through this configuration, when the operator turns the first rotation knob 432, the first feed screw 431 is rotated, the thread of the inner peripheral surface of the nut hole 436 of the welding torch feed nut block 434 and the first feed screw ( 431) As the threads of the outer circumferential surface are engaged, the welding torch transfer block 433 is advanced.

The clamping member 440 holding the welding torch 416 is coupled to the tip of the welding torch transfer block 433. Through this configuration, when the welding torch transfer block 433 is moved, the welding torch 416 is also moved while the clamping member 440 coupled to the tip is also moved.

As described above, the tip of the welding torch transfer block 433 may be directly connected to the clamping member 440, but the welding torch transfer block 433 and the clamping to adjust the horizontal position and height of the welding torch 416. It is preferable that the micro position adjusting member 480 is further provided between the members 440.

The fine position adjusting member 480 includes a horizontal guide rod 482 for adjusting the horizontal position of the welding torch 416, and a second link block 484 for adjusting the height. One end of the horizontal guide rod 482 is fixedly coupled to the first link block 481, and the other end penetrates through one side surface portion of the second link block 483. The first link block 481 is fixedly coupled to the welding torch transfer block 433.

On the other hand, the second link block 484 is vertically upright coupled to the second link block 483, the end of which is fixedly coupled to the third link block 486. In addition, a clamping member 440 is fixedly coupled to the third link member. In this case, the fixing bolt 485 is fastened to the side of the second link block 483 so that the position fixing of the second link block 484 is possible.

Through this configuration, the second link block 483 can be moved relative to the horizontal guide rod 482 in a sliding manner to adjust the horizontal position of the welding torch 416, and in the state of loosening the fixing bolt 485 The height of the welding torch 416 may be adjusted by relatively moving the second link block 484 in a sliding manner from the second link block 483. When the height is determined, the fixing bolt 485 is fastened to fix the second link block 484.

12 shows an operating embodiment of the weld W described above. As shown, the welder body may be advanced in the front and rear direction by the operation of the fourth hydraulic actuator 423, and the welding torch transfer block 433 is advanced as the first to rotate the handle 432 is rotated. 416 is moved in the front and rear direction, the height and the horizontal position of the welding torch 416 by the fine position adjusting member 480 is to be adjusted.

13 shows an exploded perspective view of the jig part J of the welding apparatus 400. As shown, the jig part J includes a jig part rotation driver 450, a rotation disc 460, and a pivot driver 470.

The jig unit rotation driver 450 includes a jig unit rotation motor 451 and a reduction gear 452. The jig part rotation motor 451 is a part that provides a driving force for rotating the rotating disc 460, which will be described later, the reducer 452 is at the same time the direction of the driving force of the jig part rotation motor 451 and at a constant reduction ratio It has a power transmission means for rotating the rotation disc 460. The jig part rotation motor 451 is provided with a motor pulley, the reducer 452 is provided with a reducer pulley, and as the belt is wound around the motor pulley and the reducer pulley, the driving force of the jig part rotating motor 451 is reduced. Configured to be communicated to 452.

The rotation disc 460 is a portion in which a wheel for a vehicle to be welded is mounted on an upper portion thereof and is rotated while supporting the wheel by the rotation of the reduction shaft 452 rotating shaft 456. A hollow shaft 461 into which the rotary shaft 456 of the reducer 452 is inserted is formed at the center of the rotary disk 460, and the bottom portion of the rim is supported by the rotary disk 460, and the hollow shaft 461 is provided. ) The hub (not shown) of the disk is fitted to the outer circumference. In addition, one side of the rotation disc 460 is provided with a wheel fixing member 462 for fixing the wheel. The wheel fixing member 462 is composed of a bolt and a nut. After mounting the wheel on the rotating disk 460, the bolt is coupled through the rotating disk 460, so that the head of the bolt covers one side of the lower edge of the rim and the nut at the rear of the rotating disk 460 By being fixedly coupled to the wheel is to be fixed to the rotating disk 460 to be supported.

On the other hand, the rotary disk 460 is not only rotated through the configuration as described above, it is also possible to pivot in the vertical direction. To this end, a reduction shaft 452 positioned below the rotating disc 460 is provided with a pivot shaft 458, and the pivot shaft 458 pivots on both sides of the vertical frame 402 connected to the base frame 401. Possibly connected. The pivoting operation of the rotating disc 460 is performed by the pivot driving unit 470. The pivot driving part 470 includes a second transfer screw 471, a jig part pivot nut block 472, and a bracket.

The second conveying screw 471 is provided with a screw thread on the outer circumferential surface and one end thereof is penetrated by one side of the crosspiece 403 of the vertical frame 402, and is supported by the unit bearing 475 so as to be self-rotating. The second rotary knob 474 is provided to rotate manually. The other end of the second transfer screw 471 is a free end and is not connected to any member.

A jig portion pivot nut block 472 is coupled to the second transfer screw 471, and the jig portion pivot nut block 472 is connected to the reducer 452 by a bracket 473. On the other hand, the bracket 473 is fixedly coupled to the reducer 452 and rotatably coupled to the jig portion pivot nut block 472.

In Fig. 14, the operating state of the jig portion J as described above is shown as a side view. As shown, when the jig unit rotation motor 451 is driven, the driving force is transmitted to the rotation disc 460 via the reduction gear 452 so that the rotation disc 460 is rotated about the rotation shaft 456. When the user rotates the second rotation knob 474, the second transfer screw 471 is rotated, and the jig portion pivot nut block engaged with it is retracted along the second transfer screw 471, and the bracket 473 connected thereto is As the reducer 452 is pivoted about the pivot shaft 458 while being rotated with respect to the jig part pivoting nut block, the rotating disc 460 is pivoted. At this time, the second transfer screw 471 is rotated in the vertical direction of the free end in accordance with the movement of the jig portion pivot nut block 472. The rotation of the second transfer screw 471 can be achieved by forming one end with a free end and the other end supported by the unit bearing 475.

15 shows the overall operating relationship of the welding apparatus 400 having the configuration as described above in a side view. Hereinafter, a welding method by the welding apparatus 400 will be described with reference to FIG. 15.

First, the operator mounts a wheel on which the disk and the rim are temporarily coupled to the rotating disc 460. In the mounting, the hub of the disk is fitted to the outer peripheral surface of the hollow shaft 461 in the center of the rotating disk 460. Next, the lower edge portion of the rim is fastened to cover the head of the bolt, and the nut is fastened to the bolt at the rear portion of the rotating disc 460 to fix it.

When the mounting of the wheel is completed, the second rotation knob 474 is rotated to rotate the second transfer screw 471. Then, the bracket 473 is rotated while the jig portion pivoting nut block 472 is moved, and the reducer 452 is pivoted about the pivot shaft 458. Accordingly, the rotation disc 460 connected to the reduction gear 452 is also pivoted, and as a result, the wheel mounted on the rotation disc 460 is pivoted at an angle.

Now, the operator operates the fourth hydraulic actuator 423 to move the welding main body 410 to the jig portion J side to hold the approximate position, and rotate the first rotation knob 432 to weld welding torch transport block 433. Advance Accordingly, the welding torch 416 reaches the vicinity of the welding portion of the wheel. For fine positioning, the operator moves the second link block 483 of the fine positioning member 480 along the horizontal guide rod 482 or moves the second link block 484 to the second link block 483. Sliding movement from) to adjust the horizontal position and height of the welding torch 416.

Position adjustment as described above is repeatedly performed until the welding torch 416 reaches the optimum welding position.

After the adjustment of the welding position, the operator drives the jig portion rotation motor 451 to rotate the wheel mounted on the rotary disk 460. Then, the welding machine is started to perform welding. Accordingly, since the wheel is rotated on the rotating disc 460 and the welding torch 416 is fixed at the optimal position, welding is performed, so that a good quality welding is performed in the gap between the rim inner peripheral surface of the wheel and the disk. It can be. In this way the welding of the rim and the disk is completed.

When the welding step is completed, the air hole drilling step is entered. The air hole drilling step is a step of drilling the air hole for injecting air to the tire mounted on the outer peripheral surface of the rim of the wheel. In this step, the air hole is drilled in the rim by the punching device 500 shown in FIG.

As shown, the drilling device 500 includes a wheel mounting member 510, a drilling drill 520, a drill feed screw 530, a transfer frame, a rack 550, a pinion 560.

The wheel mounting member 510 is installed on the working table, the upper portion is composed of a disc 512 having a diameter corresponding to the diameter of the inner circumferential surface of the wheel and a support column 514 supporting the lower portion thereof. When the wheel is mounted on the wheel mounting member 510, since the outer circumferential surface of the disc 512 of the wheel mounting member 510 is tightly contacted with the inner circumferential surface of the wheel rim, the air hole is drilled with a drilling drill 520 to be described later. In this case, the wheel is fixedly held in place without being pushed backwards.

The drilling drill 520 is rotated by a motor embedded in the drill body 522 is a portion for drilling the air hole on the rim. The drilling drill 520 is movable in the vertical direction.

The drill screw 530 is configured to move the drilling drill 520 in the vertical direction, is supported in an upright state by the screw mounting frame 540. Meanwhile, a drill transfer nut block 542 is mounted to the drill body 522, and the drill transfer screw 530 is coupled thereto. Accordingly, when the drill feed screw 530 is rotated, the thread of the drill feed screw 530 and the thread of the drill feed nut block 542 interact with each other, so that the drill body 522 and the drill drill 520 vertically move. To be transported.

On the other hand, the drilling drill 520 is movable in the horizontal direction. To this end, the lower portion of the screw mounting frame 540 is coupled to the lower portion of the rack having a screw thread 550, the lower portion of the rack 550 is engaged with the screw thread of the rack 550 pinion (560). ) Is located. The pinion 560 is fixed to the work table by a mounting member, and is mounted to be relatively rotatable from the mounting member. Through this configuration, when the pinion 560 rotates, the threads of the rack 550 and the threads of the pinion 560 interact with each other, and the rack 550 is moved in the horizontal direction. Accordingly, the screw mounting frame 540 This is moved in the horizontal direction, and consequently the drilling drill 520 is moved.

Hereinafter, a method of drilling the air hole on the rim of the wheel with the above-described drilling device 500 will be described. First, the wheel to be drilled is mounted on the wheel mounting member 510. Then, as the drill feed screw 530 is rotated, the drilling drill 520 is moved in the vertical direction to the height at which the air hole is to be drilled. Thereafter, the pinion 560 is rotated to bring the drilling drill 520 into close contact with the inner circumferential surface of the wheel. Now, the pinion 560 is rotated again while driving the motor to rotate the drilling drill 520 so that the drilling drill 520 pressurizes the outer rim of the rim. Accordingly, the drilling drill 520 is to be able to drill the air hole on the rim by the self-rotation and pressing force.

So far, the present invention has been described in detail with reference to embodiments of the present invention. However, the scope of the present invention is not limited thereto, and the present invention is intended to include practically equivalent ranges.

According to the present invention as described above, it is possible to assemble the two-piece wheel by the automated equipment, not only easy operation, but also accurate alignment of the coupling position and excellent welding quality can be achieved, long production time caused by manual work It can shorten, has an excellent effect of achieving the simplification of the process and the ease of assembly.

Claims (10)

As a method of assembling a vehicle wheel composed of a disk and a rim, A disk peeling step (S1) of aligning the disc brush 130 and the disc outer circumferential edge so as to be in contact with each other, and then rotating the disc and the disc brush 130 to peel off the alumite layer at the edge of the disc outer circumferential surface; A rim peeling step (S2) of aligning the rim brush 220 and the rim inner circumferential surface to be in contact with each other, and then rotating the rim and the rim brush 220 to peel off the alumite layer of the rim inner circumferential surface; Mount the rim on the tundish 310, and as the tundish 310 is rotated to expand the rim by heating the heating torch 350 from the outside while rotating the rim mounted thereon, and then the disk Inserting the inside of the rim, and cooling and shrinking the rim as the air is blown through the blower 360 to coalesce the disc with the rim (S3); Mounting the combined disk and the rim on a rotating disc 460 and rotating the same; and welding and aligning a welding torch 416 at a coupling part of the disk and the rim (S4); After the combination of the welded disk and the rim is fixed to the wheel mounting member 510, the drill drill 520 is positioned to contact the outer circumferential surface of the rim, and the drill drill 520 is rotated while pressing the rim surface to the rim surface. Assembly method of a vehicle wheel, comprising the step (S5) of drilling the air hole. The method of claim 1, In the disk peeling step, the disk is mounted to the disk mounting jig 114 is fixed to the hub of the disk, the disk mounting jig 114 is coupled to the motor shaft of the disk rotation motor 112 to rotate the disk Self-rotating by driving the motor 112, the motor shaft of the disk rotation motor 112 is coupled through the disk transfer plate 122 having a first nut block 124 in the lower portion, the first A horizontal movable screw 126 having a screw thread on the outer circumferential surface is coupled to the nut block 124, and the thread of the horizontal movable screw 126 and the first nut block 124 are rotated by the horizontal movable screw 126. The horizontal position of the disc is aligned by moving the disc transfer plate 122 in the horizontal direction while the threads of the interaction. The method of claim 2, In the disk peeling step, the disk brush 130 is rotatably coupled to the front end of the disk brush rotation shaft 144 connected by the disk brush rotation motor 142 and the belt, the drive of the disk brush rotation motor 142 The self-rotating according to, the disc brush rotation motor 142 and the disc brush rotation shaft 144 is mounted to the disc brush transfer plate 154, the disc brush transfer plate 154 is provided with a second nut block 156 The second nut block 156 is screwed to an upright mounted vertical movable screw 152, and the disk brush transfer plate 154 is moved in the vertical direction in accordance with the rotation of the vertical movable screw 152, so that the disk Assembly method of a vehicle wheel, characterized in that the vertical position of the brush 130 is aligned. The method of claim 1, In the rim peeling step, the rim is fixedly coupled to the motor shaft of the rim rotation motor 212 is mounted on the rim rotation disc 214 is rotated by the drive of the rim rotation motor 212 and rotates itself, The rim brush 220 is coupled to the front end of the rim brush rotating shaft 234 connected to the rim brush rotating motor 232 and the belt is a vehicle wheel, characterized in that the self-rotated by the drive of the rim brush rotating motor 232 How to assemble. The method of claim 4, wherein The rim brush rotating motor 232 and the rim brush rotating shaft 234 are mounted on the rim brush transfer block 252 through which the rim brush horizontal transfer screw 254 is screwed and coupled, and the rim brush horizontal transfer screw 254. The rim brush transfer block 252 is horizontally moved along the rim brush transfer guide 256 in accordance with the rotation of the vehicle wheel assembly method, characterized in that the horizontal position of the rim brush 220 is adjusted. The method of claim 5, wherein The rim brush transfer guide 256 is mounted on the rim brush mounting frame 202, and the rim brush mounting frame 202 is rotatably mounted with a rim brush vertical transfer screw 262 having a thread on its outer circumferential surface. The side of the rim brush transfer guide 256 is provided with a screw thread on the inner circumferential surface of the vertical transfer nut block 264 to which the rim brush vertical transfer screw 262 is screwed to protrude, and the rim brush vertical transfer screw ( As the thread of the rim brush vertical transfer screw 262 and the thread of the vertical transfer nut block 264 interact with each other as the rotation of the 262 moves, the rim brush transfer guide 256 moves in the vertical direction. Assembly method of a vehicle wheel, characterized in that the vertical position of the 220 is aligned. The method of claim 6, The rim brush refitting frame 202 is supported on the horizontal transfer plate 242 provided at the bottom thereof, the horizontal transfer plate 242 is bent at both ends vertically and the horizontal transfer guide rod 244 ) Is penetrated and the horizontal transfer plate 242 is slid along the horizontal transfer guide rod 244 by expansion or contraction of the first hydraulic actuator 246 to align the horizontal position of the rim brush 220. Assembly method of a wheel for a vehicle, characterized in that. The method of claim 1, In the step of merging the disc and the rim, the rim is rotatably mounted on the tundish 310, and the disc is movable in a vertical direction by a second hydraulic actuator 332 from the bottom and the tip is the disc. The push rod is supported by the disk support rod 330 is fixed to the hub of the push rod is moved in the vertical direction in accordance with the operation of the third hydraulic actuator 342 after the expansion of the outer peripheral surface of the rim with the heating torch 350 And 340 to press the tip of the disc support rod 330 to lower the disc to the engaging portion inside the rim, and then cool the rim to combine the disc with the rim. The method of claim 1, The drill drill 520 is rotatably mounted to the tip of the drill body 522 is a motor that provides a rotational force of the drill drill 520, the drill transfer nut block 542 to the drill body 522 Is provided, the drill feed nut block 542 is mounted upright by the screw mounting frame 540 and the drill feed screw 530 having a screw thread on the outer peripheral surface is screwed, the rotation of the drill feed screw 530 The drill body 522 is moved in the vertical direction by the interaction of the thread of the drill feed nut block 542 and the thread of the drill feed screw 530 according to the vertical position of the drill drill 520 is aligned. Assembling method of wheel for a vehicle. The method of claim 9, The lower portion of the screw mounting frame 540 is provided with a rack 550, the lower portion of the rack 550 is provided with a pinion 560, the rotation of the pinion 560 on the rack 550 and its upper portion Method of assembling a vehicle wheel, characterized in that the screw mounting frame 540 is moved in the horizontal direction to align the horizontal position of the drilling drill 520 and pressurize the rim surface at the same time.

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