JPH0211944Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an integrated wheel spinning device used in vehicles such as passenger cars, buses, and trucks.

(Prior art) As an apparatus for manufacturing a circular material having a concave or H-shaped cross section with a cylindrical portion on the outer periphery, a main shaft mechanism has an inner mold at its tip, and a tail stock mechanism has an inner mold at its tip. A spinning device is used that grips a circular material with each mold and rotates it around its axis, and shapes the outer peripheral surface of the circular material by ironing by pressing with processing rollers.

Normally, only one processing roller was used, but this caused problems in terms of cycle time and workability, so the applicant decided to first use a sixth roller.
We proposed the spinning devices shown in Figs.

Among these conventional examples, in the one shown in FIG. 6, the outer peripheral surface shape is changed during the forming process for the circular wheel material 1 held between the inner surface forming mold of the main shaft mechanism and the inner surface forming mold of the tail stock mechanism. Four types of total mold processing rollers 2 combined in order are attached to a roller support 3, and the roller support 3 is switched to correspond to the material 1 by a cylinder mechanism 4, and pressed by a cylinder mechanism 5. This is a so-called slide format.

In addition, the roller support 3 shown in FIG. 7 is rotatable around the horizontal axis 6 to switch the total mold processing roller 2, and the so-called roller support 3 is made to be able to rotate around the horizontal axis 6 to switch the total forming roller 2, which can be pressed by a cylinder mechanism 5. It is a rotary type.

(Problems to be Solved by the Invention) In both the slide type and rotary type of the conventional example described above, each of the several types of processing rollers 2 is rotatable relative to the roller support 3, but the cylinder mechanism When pressing at step 5, all processing rollers 2 are activated (moved) together.
Therefore, although it would be convenient to vary the pressing force for ironing by the processing roller 2 depending on the type of processing roller 2, it has been extremely difficult to do so.

Furthermore, regardless of whether the processing roller 2 is switched in a sliding type or a rotary type, the direction is in the circumscribed direction of the material 1, and it is impossible to perform a copying operation in the axial direction of the material 1.

(Means for solving the problem) The present invention maintains the advantages of the conventional example described above, while adjusting the pressing force of each general mold processing roller, which is the disadvantage thereof, in accordance with the processing degree and processing process. It is easy to do this, and moreover, it is possible to copy the machining surface of the material in the axial direction by using the switching operation of the machining process, and therefore,
In the present invention, a circular material having a concave or H-shaped cross section with a cylindrical portion on the outer periphery is rotated around its axis, and the outer peripheral surface of the cylindrical portion is pressed through switching of a plurality of processing rollers to undergo ironing. In addition, in a spinning device that forms the inner circumferential surface of a cylindrical part with a mold mounted on a rotatable main shaft mechanism, a plurality of roller heads are provided independently in the rotational direction of the main shaft in the main shaft mechanism, and the roller heads include processing rollers. Further, processing rollers are mounted on at least one of the roller heads at intervals in the axial direction of the main shaft, and a pressing cylinder mechanism that allows each of the processing rollers to move forward and backward toward the mold. It is an object of the present invention to provide a spinning device characterized in that it is equipped with a cylinder mechanism that allows each of the roller heads to freely reciprocate in the axial direction of the main shaft.

(Examples) Hereinafter, two embodiments of the present invention will be described in detail with reference to the drawings.

<First Embodiment> FIG. 1 shows the overall configuration of the first embodiment of the present invention, in which a tail stock mechanism 11 is mounted on a pedestal 10.
is provided.

The tail stock mechanism 11 is equipped with a mold 13 at its tip for molding one inner surface of a circular material 12, and the mold 13 is attached to a cylindrical bearing 15 that can be freely expanded and contracted in the horizontal direction via a cylinder mechanism 14, and is attached to a horizontal transverse axis. It is configured so that it can rotate freely around the body.

The main shaft mechanism 1 corresponds to the tail stock mechanism 11.
6 is provided, and the main shaft mechanism 16 has a main shaft 17
a mold 18 for molding the other inner surface of the circular material 12 provided at the tip thereof, and a bearing 17 for the main shaft 17.
A and a drive body 19, which is a motor that rotates the main shaft 17 around its axis.

Therefore, as shown in FIG.
A circular material 12 with a concave or H-shaped outer surface
When the disc part 12B of the same material 12 is formed by forging or the like which is a separate equipment, the disc part 12B of the same material 12 is gripped by the mold 13 of the tail stock mechanism 11 and the mold 18 of the main shaft mechanism 16, and the drive body 19 is activated. It can be rotated around the axis through.

The cylindrical portion 12A is a portion that becomes the rim or rim flange of the wheel, and its inner peripheral surface shape is the same as that of the mold 1.
It is determined by the outer peripheral surface shape of Nos. 3 and 18.

Therefore, since the shape of the inner peripheral surface of the cylindrical portion 12A differs depending on the type of wheel, each mold 13, 18
are said to be interchangeable with different types.

At the top of the frame 9 erected on the stand 10,
A pair of slide guides 20 are installed on parallel lines along the direction of expansion and contraction of the tail stock mechanism 11, and a roller head 22 having a groove 21 that is fitted into each of the slide guides 20 extends in the longitudinal direction through the slide guides 20. It is slidably supported by the frame 9.

That is, as shown in FIG. 2, a plurality of roller heads 22, two in this example, are provided in each direction of rotation A of the main shaft 17, and since the roller heads 22 and the members installed thereon are common, corresponding members are designated by the reference numeral "". Only one of them will be explained below with the addition of "Dasshu".

Note that the number of roller heads 22 is not limited to two, but may be three, four, etc.

The roller head 22 has molds 13 and 18, respectively.
a guide hole 24 inserted in a direction toward the center of the
25 and 26 are formed at intervals in the axial direction of the main shaft 17, and the respective holes 24, 25,
Roller supports 27, 28, and 29 are inserted through 26.

Flange bolt joints 27A, 28A, 29 are provided at the lower ends of the roller supports 27, 28, 29, respectively.
Roller bearing bodies 30, 31, and 32 are removably attached to each roller bearing body through A, and each roller bearing body has different types of molds 34, 3 arranged in the order of machining.
5 and 36 (see FIG. 2) are freely rotatably supported around the axis of the roller head 22 in the sliding direction.

Further, cylinder mechanisms 38, 39, 40 for pressing are attached to each of the roller supports 27, 28, 29 via a mounting base 37 provided upright from the frame 9. 3
4, 35, and 36 are arranged in the axial direction of the main shaft and can be pressed against the outer peripheral surface of the cylindrical portion 12A of the circular material 12 by independent cylinder mechanisms 38, 39, and 40, respectively.

Further, the roller head 22 is entirely movable back and forth in the axial direction of the main shaft on the slide guide 20 via a telescopic cylinder mechanism 41, and in this embodiment, the piston rod end of the cylinder mechanism 41 is screwed onto the roller head 22. It is said that it can be attached and detached freely via the coupling part 42.

Further, the roller head 22 is supported by the slide guide 20 via a movement promoting body 23 that slides or rolls using a slider, rollers, or the like.

(Operation 1) Next, the operation of the first embodiment will be explained assuming that a wheel is made from a circular material.

When the wheel material 12 shown in FIG. 3 is loaded onto the common axis of the tailstock mechanism 11 and the main shaft mechanism 16 via a lifter mechanism (not shown) or the like, the cylinder mechanism 14 of the tailstock mechanism 11 is extended. The disk 12B is held between the molds 13 and 18.

When the driver 19 of the main shaft mechanism 16 is activated while holding the material 12, the material 12 is rotated around its axis.

Therefore, in the state shown in Fig. 1, the cylinder mechanism 4
1 is reduced to two full-form processing rollers 36, 3.
After positioning 6' above the radiation of the material 12,
The cylinder mechanisms 40, 40' are extended, and the rollers 36, 36' are pressed onto the outer circumferential surface of the material 12, respectively, to iron the outer circumferential surface of the forged cylindrical portion 12A.

At this time, in this embodiment, when the cylinder mechanism 41 is contracted while being ironed, the cylindrical portion 12
One flange portion of A is ironed and profiled as shown in FIG. 3.

When this first stage forming process is completed, the cylinder mechanisms 40, 40' are retracted and the processing rollers 36, 3
6' is retracted, and then the two processing rollers 35, 35' of the second stage are applied to the material 12 by the cylinder mechanism 41.
After matching via the cylinder mechanism 39, 3
The processing rollers 35, 35' are pressed against the other flanges of the material 12 by the extension of the material 12, and the rotation of the material 12 is continued to extend the cylinder mechanisms 41, 41', thereby performing rotation ironing and copying/stretching. It will be processed into the shape shown in FIG. 3.

In this embodiment, two processing rollers 34,
34' is a so-called finishing roller, and the switching operation by the cylinder mechanism 41 described above, the cylinder mechanism 3
8 and 38', and by tracing the cylinder mechanisms 41 and 41', an integrated wheel 112 as a final product is formed as shown in FIG. 3 and 4.

After the integral wheel 112 is formed, it is taken out by a knock-out mechanism (not shown) and transported to the next process by a conveyor, forklift, trough, etc.

Further, in the embodiment, the third-stage processing roller is provided at the leading edge, but the arrangement of the processing rollers is arbitrary, and in short, any number of processing rollers suitable for the forming process may be used.

<Second Embodiment> This second embodiment is shown in FIGS. 4 and 5. The second embodiment is configured as a so-called vertical spinning device, whereas the first embodiment was a so-called horizontal spinning device, and its basic structure and operation are the same as those of the first embodiment. Since the functions and actions are similar, different structures will be explained below, and common parts will be indicated by common symbols.

Three roller heads 22, 22', and 22'' are provided independently in the rotational direction A of the main shaft 17, respectively.

Two machining rollers 35 and 36 are attached to the first roller head 22 of the roller heads with an interval in the axial direction of the main shaft 17, and the second roller head 2
One processing roller 35' is attached to the third roller head 2', and one processing roller 34 is attached to the third roller head 22''.

Further, each roller head 22, 22',
22'' are each provided with a cylinder mechanism 41, 41' (however, the roller head 22'' is omitted).

That is, in this second embodiment, the main shaft 1 is attached to each of the roller heads 22, 22', unlike the first embodiment.
Processing rollers 34, 3 are spaced apart in the axial direction of 7.
4', 35, 35', 36, 36', but in this second embodiment only one roller head 22 is installed.
Processing rollers 35 and 36 are mounted at a distance in the axial direction of the main shaft 17.

(Effects of the invention) According to the invention, since the processing roller whose outer peripheral surface shape is adapted to the forming process is incorporated into a common roller head as a unit, a single-function forming mechanism can be replaced with a multi-function forming mechanism. This method has the same effect as the conventional example of eliminating the need to replace the rollers for each molding process, but also has the following advantages.

Since each of the processing rollers can be pressed independently by a cylinder mechanism, it is possible to apply an optimal pressing force that matches the processing process.

In addition, the processing roller is provided in the roller head together with the pressing cylinder mechanism, and is movable in the axial direction of the main shaft by the cylinder mechanism for axial movement. It is possible to have both the processing roller switching function and the copying function.

In addition, a plurality of roller heads are provided in the rotational direction of the main shaft, and processing rollers are provided on these heads, so that the plurality of rollers in the rotational direction can be moved forward and backward at the same time or individually, and the rollers can be replaced here. Multi-mode spinning processing is possible without any problems.

[Brief explanation of the drawing]

The drawings show two embodiments of the present invention and a conventional example,
FIG. 1 is a partially sectional side view of the first embodiment of the present invention;
Figure 2 is the BB line arrow diagram in Figure 1, Figure 3 is 1, 2,
3 and 4 are explanatory diagrams of the processing degree of the material showing the processing order,
FIG. 4 is a partially sectional side view of the second embodiment of the present invention;
FIG. 5 is a view taken along the line CC in FIG. 4, and FIGS. 6 and 7 are front views of the conventional example. 12... Circular wheel material, 13, 18... Mold,
16...Main shaft mechanism, 17...Main shaft, 22, 22',
22″...Roller head, 34, 34', 35, 3
5', 36, 36'... processing roller, 38, 38',
39, 39', 40, 40'... Pressing cylinder mechanism, 41, 41'... Switching cylinder mechanism.

Claims (1)

[Claims for Utility Model Registration] (1) A circular material with a concave or H-shaped cross section having a cylindrical portion on the outer periphery is rotated around its axis, and the outer periphery of the cylindrical portion is processed by switching a plurality of processing rollers. In a spinning device that performs pressing and ironing and forms the inner peripheral surface of a cylindrical part with a mold attached to a rotatable main shaft mechanism, a plurality of roller heads are provided independently in the rotational direction of the main shaft of the main shaft mechanism, and A processing roller is attached to the roller head,
Further, processing rollers are mounted on at least one of the roller heads at intervals in the axial direction of the main shaft, and a pressing cylinder mechanism is provided that allows each of the processing rollers to move forward and backward toward the mold, and further, A spinning device comprising a cylinder mechanism that allows each of the roller heads to move back and forth in the axial direction of the main shaft. (2) The spinning device according to claim 1, wherein a plurality of processing rollers of different types are mounted on each roller head at intervals in the axial direction of the main shaft.