JP3011475B2 - Positioning device for inserting disc into rim - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a positioning device for fitting a disc to a rim, and is used, for example, for fitting a disc into a rim of a styled wheel and for a tacking machine.

[0002]

2. Description of the Related Art As shown in FIG. 2, a conventional styled wheel welds a rim drop portion corner and a disk with a back surface of a bead seat portion of a rim 100 and an outer peripheral surface of a disk 102 fitted together. Was.

[0003]

However, in the conventional styled wheel structure, the fitting surface 104 between the rim and the disc is in close contact in the wheel painting process, so that no paint enters therein. For this reason, there is a problem that rust is generated from the fitting surface 104 and wipes out to the front surface of the wheel to deteriorate the appearance. In order to prevent rust from occurring, it is sufficient to provide a slight gap just enough for the paint to enter the mating surface.However, if there is a gap, there is no reference surface when the disc is inserted into the rim and positioned. As a result, there has been a problem that positioning during fitting and welding cannot be performed.

According to the present invention, when a gap is provided between the back surface of a rim bead seat portion of a styled wheel and an outer peripheral surface of a disc, the disc can be positioned in a radial direction when the disc is inserted into the rim. It is an object of the present invention to provide a fitting positioning device.

[0005]

The above object is achieved by the device for positioning a disk to be inserted into a rim according to the present invention comprising the following means. A rim support ring for mounting the rim, a disk support block provided on the inside of the rim support ring, a collet chuck provided on the inside of the disk support block and capable of protruding into the disk hub, and a vertical movement A disk pad that holds the disk between the disk support block when it is enabled and lowered, a taper cone that can be moved up and down and expands the collet chuck when it enters the collet chuck, and a rim that can be moved up and down and lowered A rim pad for holding a rim between the support ring and a passive cam provided on the outside of the rim support ring so as to be movable in a horizontal direction; and a slider which is movable up and down and pushes the passive cam when lowered.

[0006]

In the above-mentioned insertion positioning device, after the disk is placed on the disk support block and pressed by the disk pad, the taper cone enters the collet chuck, expands the collet chuck, and presses against the inner peripheral surface of the hub hole. Is centered and positioned. On the other hand, after the rim is placed on the rim support ring and pressed by the rim pad, the slider pushes the passive cam in the horizontal direction, and the passive cam is pressed against the rim from around to center and position the rim. Thus, the rim and the disc are not positioned with respect to the rim bead seat back. Therefore, even if a gap is provided between the rear surface of the rim bead seat and the outer peripheral surface of the disk, the disk can be fitted and positioned concentrically on the rim, and in this positioned state, temporary welding between the disk and the rim can be performed. Will be

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the disk rim positioning device according to the present invention will be described below with reference to FIG. Reference numeral 10 denotes a fixed lower holder, on which an upper holder 12 is provided so as to be vertically movable via a universal joint 16 by an air cylinder 14.

A rim support ring 18 for mounting the rim 100 is fixed to the lower holder 10. Rim 100
When the rim is mounted on the rim support ring 18, there is a radial clearance between the rim support ring 18 and the rim flange, and the rim is radially adjusted with respect to the rim support ring 18. Can move relatively in the radial direction. The rim support ring 18 may be provided with a rough guide 20 for guiding the rim 100 roughly in the radial direction. However, the rough guide 20 is not essential, and the rim can be moved in the radial direction also with respect to the rough guide 20.

A center guide holder 22 is fixed to the center of the lower holder 10, and a center guide 24 is held by the center guide holder 22. Center guide 2
A disk support block 26 for mounting the disk 102 is provided so as to be able to move up and down with the guide 4 as a guide. A spring 28 is interposed between the disk support block 26 and the center guide holder 22, and floats the disk support block 26. Numeral 30 denotes a pin fixed to the disk support block 26, which protrudes into a bolt hole of the disk 102 and functions to stop the disk 102 from rotating around the disk support block 26.

A collet chuck 32 is provided inside the disk support block 26, and the collet chuck 32 is connected to the center guide 24. The collet chuck 32 enters the hub hole (center hole of the disk) when the disk 102 is placed on the disk support block 26. When the collet chuck 32 is expanded, the disc 102 is positioned and fixed based on the hub hole.

Above the disk support block 26, there is provided a tapered cone holder 34 which can move up and down. The tapered cone holder 34 is the air cylinder 3
6 vertically move relative to the upper holder 12.

A disk pad 38 is suspended from the tapered cone holder 34, and the disk pad 38 is urged downward by a compression spring 40 interposed between the disk pad 38 and the tapered cone holder 34. The disk pad 38 can be moved up and down together with the taper cone holder 34. When the disk pad 38 is lowered to hold the disk 102 between the disk support block 26 and the disk pad 38, the compression spring 40 bends and the disk 102 Press lightly.

The tapered cone holder 34 also supports a tapered cone 42. The taper cone 42 can move up and down together with the taper cone holder 34. When the taper cone 42 is lowered, it is fitted into the collet chuck 32 to expand the collet chuck 32, and the collet chuck 32 is slightly pressed between the disk support block 26 and the disk pad 38.
Press it against the inner peripheral surface of hub hole 2. As a result, the disc 102 is positioned in the radial direction at the same axis as the axis of the tapered cone 42 with a force larger than the pressing force of the disk support block 26 and the disk pad 38.

A rim pad 44 for holding down the rim 100 is supported on the upper holder 12. The rim pad 44 can move up and down together with the upper holder 12. A compression spring 46 is interposed between the rim pad 44 and the upper holder 44, and urges the rim pad 44 relatively downward with respect to the upper holder 12. Due to the presence of the spring 46, when the rim 100 is clamped between the rim pad 44 and the rim support ring 18, the rim pad 44 presses the rim 100 lightly.

Outside the rim support ring 18, a plurality of passive cams 48 are arranged at equal intervals in the circumferential direction. The passive cam 48 is movable in the horizontal direction.
That is, the cam base 50 is fixed to the lower holder 10, and the passive cam 48 can move in the horizontal direction with respect to the cam base 50. A compression spring 52 is interposed between the cam base 50 and the passive cam 48, and the spring 52 urges the passive cam 48 in a direction away from the rim 100.

A cam guide block 54 is fixed to the cam base 50. Cam guide block 54 and passive cam 4
A slider 56 is fixed to the upper holder 12 above a space between the slider 56 and the upper holder 8. The slider 56 can move up and down together with the upper holder 12, and when it is lowered, it enters between the cam guide block 54 and the passive cam 48, and pushes the passive cam 48 horizontally toward the rim support ring 18. I do. The passive cam 48 is provided with a rim 1 pressed between the rim pad 44 and the rim support ring 18 via a rim punch 58 supported by the passive cam 48.
00 is pressed from around with a large force to position the rim axis.

A plurality of holes 60 are provided in the lower holder 10 in the circumferential direction on the inner peripheral side of the rim support ring 18, and a temporary welding torch 62 extends into the rim 100 through the holes 60. Temporary welding torch 62 is rim 1
00 and the disk 102 are temporarily attached by welding.

Reference numeral 64 denotes a lifter which is moved up and down by an air cylinder 66 (only the upper end is visible in FIG. 1) provided below the lifter to pop out the rim / disk assembly after the temporary attachment.

Next, the operation will be described. With the lifter 64 lowered by the cylinder 66, the rim 100 is placed on the rim support ring 18. The rim 100 is roughly positioned using the rough guide 20. At this time, the upper holder 12 and the members associated therewith are in a state of being lifted upward. The disk support block 26 is slightly lifted from the center guide holder 22 by the spring 28.

Next, the disk 102 is moved to the disk support block 2 using the collet chuck 32 as a guide.
6. Place on top. Positioning in the circumferential direction is performed by inserting the pin 30 into a bolt hole around the hub hole of the disk 102. In this state, the disk 102 is roughly positioned on the disk support block 26.

Next, the air cylinder 14 is driven to lower the upper holder 12. When the upper holder 12 is lowered, the tapered cone holder 34 is also lowered. In this lowering, first, the rim pad 44 hits the rim 100 and the rim 1 is located between the rim support ring 18 and the rim pad 44.
00 is pressed in the axial direction, and the disk pad 38 hits the disk 102, and the disk 102 is pressed in the axial direction between the disk support block 26 and the disk pad 38. Rim pad 44 and disc pad 38
The rim and disk are pressed by the spring 4
Because there are 6, 40, it is light power.

Next, the air cylinder 36 is operated to lower the tapered cone holder 34 relative to the upper holder 12, and the tapered cone 42 is lowered to fit into the collet chuck 32. Collet chuck 3
2 is expanded and pressed against the inner surface of the hub hole of the disc 102, and at the same time, the disc 102 is centered and positioned on the taper cone axis, that is, the wheel axis, based on the hub hole.

Next, by driving the air cylinder 14,
The upper holder 12 is further lowered, and the slider 56 enters between the cam guide block 54 and the passive cam 48, and pushes the passive cam 48 in the horizontal direction toward the rim 100. Since there are a plurality of passive cams 48 around the rim 100, for example, four at equal intervals in the circumferential direction, the passive cams 48 push the rim 100 via the rim punch 58 from around the rim 100 to center and position the rim 100. Since the axis of the tapered cone 42 is aligned with the center of the plurality of passive cams 48, the rim 100 positioned by the passive cams 48 is coaxial with the disk 102.

In this centering, since the fitting between the rear surface of the rim bead seat portion and the outer peripheral surface of the disk is not used, a gap can be provided between both surfaces. Thus,
In a styled wheel having a gap between the back surface of the rim bead seat and the outer peripheral surface of the disc, the rim and the disc can be aligned.

Using the tack welding torch 62, the disc and the disk are tentatively welded from the inner surface of the rim to the inner diameter side of the rim drop portion with respect to the aligned disk / rim assembly. The final welding is performed in a subsequent welding process.

After the tack welding, the air cylinders 36 and 14 operate in the opposite directions, the taper cone 42 is lifted, and the upper holder 12 is lifted. Subsequently, the air cylinder 66 is operated, the lifter 64 is raised, and the disc / rim assembly is ejected and sent to the next process.

[0027]

According to the present invention, the disk is formed by the tapered cone and the collet chuck, and the rim is formed by the passive cam.
Since they are centered independently of each other and positioned coaxially with each other, there is no need to use the back surface of the rim bead seat as the reference surface for centering as in the conventional case. Can be provided with a gap in the radial direction. This allows the paint to penetrate into the fitting surface between the rim and the disc through this space, thereby preventing rust on the fitting surface.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a main part of a positioning device for fitting a disc to a rim according to an embodiment of the present invention.

FIG. 2 is a schematic sectional view of a styled wheel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Lower holder 12 Upper holder 14 Air cylinder 18 Rim support ring 20 Rough guide 22 Center guide holder 24 Center guide 26 Disk support block 28 Spring 32 Collet chuck 34 Taper cone holder 36 Air cylinder 38 Disk pad 40 Spring 42 Taper cone 46 Spring 48 Passive cam 50 Cam base 52 Spring 54 Cam guide block 56 Slider 58 Rim punch 62 Temporary welding torch 64 Lifter 100 Rim 102 Disk

──────────────────────────────────────────────────の Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B23P 19/02

Claims (1)

(57) [Claims] 1. A rim support ring for mounting a rim, a disk support block provided on the inside of the rim support ring, and a disk support block provided on the inside of the disk support block, which can be inserted into a disk hub. A collet chuck, a disk pad that can be moved up and down and sandwiches the disk between the disk support block when lowered, a taper cone that can be moved up and down and expands the collet chuck when it enters the collet chuck, and can be moved up and down A rim pad that holds the rim between the rim support ring and the rim support ring when it is lowered, a passive cam that is provided movably in the horizontal direction outside the rim support ring, and that can be moved up and down and pushes the passive cam when it is lowered A positioning device for fitting a disk to a rim, the device including a slider.