JP2000335739A - Directing and positioning device for wheel disc - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce device cost and shorten cycle time when directing and positioning wheel discs in a production line. SOLUTION: This device includes a carrying table 2 for carrying wheel discs 1 placed thereon in one direction, a rotation driving body 3 rotated with its rotating axis core in vertical and disposed on the upper part of the carrying table 2 and a positioning holding body 6 disposed along the carrying direction at the downstream side of the rotation driving body 3 in the carrying direction. The rotation driving body 3 is disposed at a height enough to pass through window portions 1a of the wheel discs carried on the carrying table 2 with their reverses turned up, where the window portions 1a are formed, and is formed on its diameter to pass through the window portions 1a. The positioning holding body 6 is formed with its height and shape enough to pass through the window portions 1a and with its length greater than the diameter of the wheel discs 1 in the carrying direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel disk direction positioning device, and more particularly, to a wheel disk direction positioning device in a production line of an automobile wheel disk.

[0002]

2. Description of the Related Art In a production line of wheel disks for automobiles, when wheel disks are stacked, a plurality of wheel disks are positioned in the circumferential direction to prevent generation of scratches and to improve workability in assembling for the next step. It is necessary to stack in the state where it was done.

For this reason, conventionally, as shown in FIG. 14, a stage S1 for detecting a positional deviation of a wheel disk by a camera or a sensor during a production line on which the wheel disk 1 is conveyed, and a positional deviation detected in a subsequent process. A straightening device stage S2 for rotating and correcting the minute by a turntable is provided, and the conveying device 100 of the clamp feeding system is provided.
Disc 1 conveyed in the direction of arrow A by
First, the positional deviation is detected by the detection stage S1, then the detected positional deviation is corrected by the correction stage S2, and then conveyed to the wheel disk stacking stage S3, and the wheel disk 1 positioned in that direction is removed. Some are designed to stack automatically.

[0004]

However, in the conventional wheel disk direction positioning device having the detection stage S1 and the correction stage S2 as described above, the device cost is high and the cycle time required for the wheel disk direction positioning is long. There is a problem.

It is an object of the present invention to reduce the cost of the apparatus and the cycle time by using simple means without a detection stage and a correction stage as in the conventional wheel disk direction positioning apparatus. It is in.

[0006]

According to a first aspect of the present invention, there is provided a transport table for mounting a wheel disk and transporting the wheel disk in one direction, and a rotating shaft having a vertical axis. A rotating driver disposed at the top of the transport table, and a positioning maintaining member disposed along the transport direction downstream of the position of the rotary driver in the transport direction to form a window. With respect to the wheel disk transported on the transport table with the back side facing upward, the rotary driving body is arranged at a height passing through the window and formed to have a diameter passing through the window, and the positioning is performed. The maintenance body is formed to have a height and a shape passing through the window, and is formed to be longer than the diameter of the wheel disc in the transport direction.

In the present invention, when a portion of the upper outer peripheral surface other than the window portion of the wheel disk conveyed by the conveying table comes into contact with the rotary driving body, the wheel disk is moved in a plane by the friction rotational torque of the rotary driving body. It is rotated and the window of the wheel disc comes to the position of the rotary driver. This allows the wheel disk to pass through the rotary drive through its window. Then, when the disc is further conveyed and the window on the opposite side to the window passes through the rotary driver, the positioning maintaining body is inserted into the previous window. Then, when the disk is further transported, the positioning maintaining body penetrates through both the windows, and the directional positioning of the disk is maintained. Therefore, all the wheel disks sequentially sent on the transfer table are positioned in the circumferential direction and transferred to the downstream side.

When the window of the wheel disk is located at the rotary drive and the wheel disk is conveyed, the rotary drive passes through the window without contacting the wheel disk. The vehicle travels straight without rotating, and the window on the opposite side formed symmetrically with the window also passes through the rotary driver. Therefore, the positioning maintaining body is inserted through the window in the same manner as described above, and the directional positioning of the wheel disc is maintained.

According to a second aspect of the present invention, in the first aspect, the planar shape of the positioning maintaining body is formed in a tapered shape in which a tip portion on the side of the rotary driving body is narrow. Things.

In the present invention, since the positioning maintaining body is tapered, it is easy to insert the positioning maintaining body into the window, and to enhance the positioning accuracy of the disk by the positioning maintaining body after the insertion. it can.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on the embodiments shown in FIGS. 1 to 5 show an embodiment of a wheel disk (hereinafter simply referred to as "disk") direction positioning apparatus according to the present invention.

The transport table 2 on which the disk 1 is placed
For example, a transport roller 2b made of iron is fixed between the fixed side frames 2a.
Are rotatably arranged side by side, and each of the transport rollers 2b is configured to be rotated by rotation driving means (not shown). Each of the transport rollers 2b rotates so as to transport the disk 1 placed thereon in the direction of arrow A in FIG.

As shown in FIG. 15, the disc 1 which is positioned in the direction according to the present invention has a notch 1a on the back side of the disc 1, and the window 1a is provided on the axis of the disc 1. It is formed at a symmetrical position (X direction in FIG. 15) about the center. FIG. 15 shows an example in which four windows 1a are formed.

Above the transfer table 2, a cylindrical rotary driver 3 is supported by a support frame 4 at a substantially central portion in the width direction of the transfer table 2, with its rotation axis being vertical. It is arranged. The rotary driving body 3 has a lower portion 3a of the outer peripheral surface abutting on an upper outer peripheral surface 1b of the disc 1 placed on the transfer table 2 with the window 1a side facing upward, and the window 1a Is arranged so that the window 1a can pass through. That is, the rotary driving body 3
Is set to a diameter through which the window 1a can pass, and the height H of the lower end 3b of the rotary driver 3 from the transport roller 2b.
Is set to a height at which the window 1a can pass.

The rotary drive 3 is rotatably supported by a support frame 4 and is rotated by rotary drive means 5 fixed to the support frame 4. As the rotation driving means 5, a variable speed motor is used.

Further, when the disk 1 conveyed in a state where the disk 1 is rotating comes into contact with the disk 1, the rotary driver 3 rotates the disk 1 in one direction by the frictional rotation torque of the rotary driver 3. The contact surface is formed of an elastic member having high wear resistance, for example, urethane rubber.

Further, the rotary driving body 3 is provided so as to be vertically adjustable by a vertical adjusting mechanism (not shown), and by adjusting the height H, various kinds of disks having different window portions 1a in height. It can be adapted to.

Above the transfer table 2 and downstream of the rotary drive 3, a plate-like positioning maintaining body 6 is fixedly supported by a hanging rod 7, and its tip is driven by rotation. It is arranged close to the rear side of the body 3. Further, the positioning maintaining body 6 is disposed substantially at the center in the width direction of the carrying table 2 and parallel to the carrying direction of the disc 1, and further horizontally at the height passing through the window 1 a of the disc 1. Are located. Further, as shown in FIG. 1, the planar shape of the positioning maintaining body 6 is set such that its total length is longer than the diameter of the disk 1 and its width is such that it can pass through the window 1a of the disk 1. At the same time, it is formed in a tapered shape toward the rotation driving body 3 side.
Note that the width of the positioning maintaining body 6 at the rear stopper 8 at the drop position of the disk, which will be described below, is
Is set substantially equal to the circumferential opening width of the window 1a.

A rear stopper 8 is disposed and fixed behind the downstream end 2c of the transfer table 2 at a distance slightly longer than the diameter of the disk 1 from the downstream end 2c. The rear stopper 8 is arranged at a height in contact with the upper outer peripheral surface 1b of the disk 1 conveyed on the conveying roller 2b.

Both sides between the downstream end 2c of the transfer table 2 and the rear stopper 8, ie, the disk 1
A pair of guides 9 and 10 for guiding the upper outer peripheral surface 1b of the conveyed disc 1 are arranged on both sides in a direction orthogonal to the conveyance direction A at a slightly longer interval than the diameter of the disc 1. I have.

The rear stopper 8 and the pair of guides 9 and 10 are supported and fixed by a suspension rod 11. Both sides between the downstream end 2c of the transfer table 2 and the rear stopper 8, that is, the pair of guides 9,
Disk support plates 12 and 13 are disposed below the upper surface 10 with their upper surfaces (support surfaces) flush with the upper surface of the transport roller 2b, and receive and support the disk 1 unloaded from the transport table 2. It has become. Further, the two support plates 12, 13 are provided with advance / retreat driving means 14, 1 such as a cylinder.
5, so as to advance and retreat in the lateral direction, that is, in the direction orthogonal to the transport direction A.
By moving the disc 13 outward, the supported disc 1 is dropped by its own weight. The opening and closing of both support plates 12, 13 are adjusted in accordance with the line tact. A disc dropping mechanism 16 is constituted by the two support plates 12 and 13 and the drive means 14 and 15 thereof.

The lower portion of the hub hole 1c of the disc 1 which is supported by the two support plates 12 and 13 and is stopped by contacting the rear stopper 8 is substantially coaxial with the hub hole 1c. A pole 17 having a diameter to be inserted is provided upright, and a large number of disks 1 dropped from the disk drop mechanism 16 are stacked by inserting the pole 17 into the hub hole 1c.

Next, the step of positioning the disk in the present invention will be described with reference to the schematic views shown in FIGS. The disc 1 being conveyed in the direction of arrow A by the conveying roller 2a with the window 1a side facing upward is the window 1a.
Are random in the circumferential direction. For this reason, as shown in FIG. 6, the case where the upper outer peripheral surface 1b of the disk 1 where the window 1a is not formed abuts on the rotary driver 3 will be described first.

In this case, the rotating driving body 3
When the upper outer peripheral surface 1b of the disk 1 comes into contact with the outer peripheral surface of
The disc 1 is prevented from moving in the transport direction, and the disc 1 is rotated on the transport roller 2b in one direction, for example, in the direction of arrow B shown in FIG. The rotation brings the window 1a to the position of the rotary driver 3 as shown in FIG. At this time,
Since the transport table 2 is configured by the transport rollers 2b, the contact between the disc 1 and each transport roller 2b is in a point contact state, and the disc 1 is smoothly rotated in the plane.

In the above state, the disk 1 is moved by the rotational force of the transport roller 2b so that its window 1a passes through the rotary driver 3 and advances straight in the transport direction A, as shown in FIG. Is in the disk 1.

From the state shown in FIG. 8, the disk 1 is rotated in the circumferential direction for some reason, and as shown in FIG. 9, the window 1a on the opposite side to the window 1a in which the rotary driving body 3 enters is rotated. In the case of displacement in the direction, as shown in FIG.
Abuts against the inner surface of the disk 1. When the disk 1 is brought into contact in this manner, the disk 1 rotates in the direction of arrow C in FIG.

When the window 1a of the disk 1 reaches the position of the rotary driving member 3 as shown in FIG. 10 by this rotation, the window 1a of the disk 1 is rotated by the rotational force of the transport roller 2b. It is transported in the direction of arrow A after passing through the body 3.

In the state in which the disk 1 is conveyed, the window 1a on the downstream side of the rotary driving member 3 is located substantially at the center of the conveying table 2, so that the window 1a is located at the tip of the positioning maintaining member 6. Opposes. Therefore, the aforementioned disk 1
, The leading end of the positioning maintaining body 6 is inserted into the window 1a. At this time, since the positioning maintaining body 6 is formed in a tapered shape, it easily enters the window 1a. Thereafter, when the disc 1 is further conveyed in the direction of arrow A, FIG.
As shown in the disk 1A of FIG. 0, the positioning maintaining body 6 has both windows 1a, 1a formed at symmetrical positions of the disk 1A.
And the disk is positioned in the circumferential direction. That is, even if the center of the window 1a is slightly shifted from the center of the positioning maintaining body 6 as in the disk 1 of FIG.
a, 6a, and the window 1
The center of a is moved toward the center of the positioning maintaining body 6, and the circumferential position of the disk 1 is automatically corrected.

The disc 1 positioned in the above-described direction is conveyed onto the two supporting plates 12 and 13 shown in FIGS. 1, 3 and 4, and stops by contacting the rear stopper 8. When the advancing / retreating drive means 14 and 15 retreat in accordance with the line tact, and the two support plates 12 and 13 open outward, the disc 1 falls by its own weight in the state of being positioned in the direction, and stands downward. Fig. 3
Stacked as shown.

Then, in the state of being positioned in this direction and being stacked, it is sent to the next process such as the next assembling. Next, as shown in FIG. 11, the disk 1 is transported in a state where the window 1a is located substantially at the center of the transport table 2, that is, in a direction in which the rotary driver 3 directly passes through the window 1a. The following describes the case where

In this case, the disk 1 does not rotate because the rotary driver 3 passes through the window 1a without contacting the upper outer peripheral surface 1b of the disk 1. Therefore, disk 1
As shown in FIG. 12, the vehicle goes straight while being transported.

When the disc 1 is further conveyed in the direction of arrow A, the rotary driver 3 passes through the window 1a on the opposite side (upstream side) as shown in FIG. At this time, the tip of the positioning maintaining body 6 is inserted into the window 1a on the downstream side. Thereafter, when the disc 1 is further conveyed in the direction of arrow A, the positioning maintaining body 6 penetrates both windows 1a to maintain the directional positioning of the disc 1, and the disc 1 is moved in the same manner as described above. Conveyed up.

Thereafter, the discs 1 are stacked on the poles 17 in a state where the discs 1 are positioned in the same direction by the same process as described above. 6 to 10, the transport of the disk 1 is temporarily stopped by the rotary driving body 3, and
13, the disc 1 is conveyed without stopping, but the feed rotation speed of the conveyance roller 2 b, the rotation speed of the rotary driver 3, and the feed interval of each disc 1 on the conveyance table 2 are set to predetermined values. By doing so, each disk 1 to be transported can be sequentially supplied to the positioning maintaining body 6, and no special control of the timing of inserting the positioning maintaining body 6 into the window is required.

By adopting the direction positioning device of this embodiment, the mechanism is very simple because the detection stage and the correction stage in the conventional disk direction positioning device are not provided, and the apparatus cost is reduced to about 1 / the conventional cost. It became 10. Further, the conventional detection time is not required, and the cycle time of the production line can be reduced to about 1/2 of the conventional one.

[0035]

As described above, according to the wheel disk direction positioning apparatus of the present invention, the conventional detection stage and correction stage are not required, and these special control mechanisms are not required. Therefore, the apparatus is simpler than the conventional one, and the apparatus cost can be reduced.

Further, since the time required for detection by a camera or a sensor as in the related art is not required, the cycle time of the production line can be greatly reduced as compared with the above-described conventional apparatus.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a wheel disk direction positioning device according to the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a side view of the disk drop mechanism of FIG. 1;

FIG. 5 is a schematic perspective view of a positioning maintaining body used in the present embodiment.

FIGS. 6A and 6B are schematic views showing a first step in a case where the disc window is conveyed in a state where the disc window does not coincide with the rotary driving body, in which FIG. 6A is a front sectional view, and FIG. It is a top view.

FIGS. 7A and 7B are schematic diagrams showing a second step, wherein FIG. 7A is a front sectional view and FIG. 7B is a plan view.

8A and 8B are schematic views showing a third step, wherein FIG. 8A is a front sectional view and FIG. 8B is a plan view.

9A and 9B are schematic views showing a fourth step, wherein FIG. 9A is a front sectional view and FIG. 9B is a plan view.

FIG. 10 is a schematic view showing a fifth step, and is a plan view.

FIGS. 11A and 11B are schematic diagrams showing a first step in a case where the disk is conveyed in a state where the window portion of the disk coincides with the rotary driving body, in which FIG. 11A is a front sectional view, and FIG. It is a top view.

FIGS. 12A and 12B are schematic views showing a second step, wherein FIG. 12A is a front sectional view and FIG. 12B is a plan view.

FIG. 13 is a schematic view showing a third step, and is a plan view.

FIG. 14 is a plan view schematically showing a conventional wheel disk positioning device.

FIG. 15 is a perspective view of a wheel positioned according to the present invention as viewed from the back side.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wheel disk 1a Window part 2 Carrying table 3 Rotary driving body 6 Positioning maintenance body

Claims (2)

[Claims] 1. A transport table on which a wheel disc is placed and transported in one direction, a rotary driver which rotates with a rotation axis vertical and is disposed above the transport table, and a position of the rotary driver. On the downstream side in the transport direction, the rotary drive unit is constituted by a positioning maintaining body arranged along the transport direction, and the wheel driver transported on the transport table with the back side having the window formed facing upward. , Is arranged at a height passing through the window and is formed to have a diameter passing through the window, and the positioning maintaining body is formed to have a height and a shape passing through the window, and the wheel disc is moved in the conveying direction. A directional positioning device for a wheel disc characterized by being formed longer than a diameter. 2. The direction positioning device for a wheel disk according to claim 1, wherein a planar shape of the positioning maintaining body is formed in a tapered shape in which a tip portion on the side of the rotary driving body is narrow.