JP3311714B2 - Disc wheel straightening device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk wheel correcting device for correcting deformation of an aluminum disk wheel used in a vehicle.

[0002]

2. Description of the Related Art A disc wheel made of a lightweight and highly rigid aluminum alloy (hereinafter referred to as an aluminum wheel).
Not only helps to improve acceleration, riding comfort and fuel economy, but also has a beautiful appearance, but is very expensive, and if it is deformed by accident or burst, for example, Since it is very uneconomical to carry out, it is preferable to regenerate as much as possible as much as possible if there is some deformation.

[0003] Here, as a device for correcting deformation of an aluminum wheel, one described in Japanese Utility Model Publication No. 3-9853 is known. As shown in FIG. 5, this conventional apparatus includes, as shown in FIG. 5, a rotary table 02 which is rotatably supported in the lower part of a U-shaped frame 01 and which is mounted on an aluminum wheel A0 with its axial direction up and down. 02 comprises a radial direction correcting device 03 and an axial direction correcting device 04 provided in an upper part. More specifically, the radial direction correcting device 03 includes a hydraulic cylinder 05 fixed to an upper portion of the U-shaped frame 01,
An elevating frame 06 provided at the end of the piston rod of the hydraulic cylinder 05 so as to be able to move up and down in the vertical direction, and a narrow attachment 07 and a wide attachment 08 attached to the lower surface of the elevating frame 06 in a C-shape. , A hydraulic cylinder 09 and a press rod 010 respectively provided with
Is provided with a moving device 012 provided on the gate-shaped frame 011 so as to be movable in the left-right direction, a hydraulic cylinder 013 attached to the moving device 012, and a vertically movable vertically movable member at the tip of the piston rod of the hydraulic cylinder 013. And a correction means 014.

[0004] That is, in the above-mentioned conventional device, first, the piston rod of the hydraulic cylinder 05 is extended in the radial direction correction device 03 to attach the attachment 07 to the aluminum wheel A.
At the same time, the attachment 08 is brought into contact with the inner surface of the flange f facing the deformed concave portion. And the hydraulic cylinder 09
Is gradually extended, the attachment 07 presses the deformed concave portion in a radially outward direction. At this time, the pressing force is transmitted to the attachment 08 as a reaction. However, since the attachment 08 is formed sufficiently wider than the attachment 07, only the deformed concave portion is deformed radially outward, and the radial direction of the aluminum wheel A0 is changed. The deformation is corrected. In addition,
The deformation of the aluminum wheel A0 in the axial direction can be achieved by extending the hydraulic cylinder 013 of the axial direction correcting device 04 and correcting the same.
Is corrected by pressing the deformed portion downward in the figure.

[0005]

However, in the above-mentioned conventional apparatus, the means for correcting the deformation in the radial direction (radial direction correcting device 03) and the means for correcting the deformation in the axial direction (axial direction correcting device 04) are provided. Are provided separately, and each of them is required to have a hydraulic cylinder. Therefore, there is a problem that the apparatus is increased in size and weight is increased. In addition, the conventional device includes hydraulic cylinders 05, 09,
Since it is composed of many movable parts such as the elevating frame 06, the moving device 012, and the hydraulic cylinder 013, there is a problem that the device is complicated and the cost is increased.

The present invention has been made in view of the above-mentioned problems of the prior art, and has as its object to correct radial and axial deformation with one actuator (hydraulic cylinder). It is an object of the present invention to provide a disk wheel straightening device which has a simple structure and which is excellent in cost reduction and size reduction by adopting a possible configuration.

[0007]

According to a first aspect of the present invention, there is provided a disk wheel straightening apparatus, comprising: a table on which an aluminum disk wheel is placed with a disk placed upside down; A fixing means for fixing the disc wheel to the table, a press head in contact with a deformed portion of the disc wheel, a straightening means having an actuator for reciprocating the press head to reciprocate and press the deformed portion; A plurality of support portions that are provided above and are capable of detachably attaching the correcting means, and that can be supported at an arbitrary angle in the vertical direction,
And wherein the fixing means is capable of adjusting a fixing position of the disc wheel so that one of the support portions is located immediately above a rim flange of the disc wheel.

According to a second aspect of the present invention, in the disk wheel straightening apparatus according to the first aspect, the plurality of support portions are brackets having fitting holes formed in the same direction.
A cylindrical fitting projection is formed on the side of the rear end of the actuator, and the fitting projection is provided in a fitting hole of the bracket so as to be freely detachable.

According to a third aspect of the present invention, in the disk wheel straightening device according to the first or second aspect, when the plurality of support portions are provided on the same straight line, and when the straightening means is mounted on these support portions, The center line of the straightening means is located immediately above the diameter line of the disk wheel fixed to the table.

According to a fourth aspect of the present invention, in the disk wheel straightening apparatus according to any one of the first to third aspects, the fixing means is mounted on the disk wheel when the disk wheel is fixed, and a bolt is provided at the center thereof. A plate having a hole formed therein, formed to be insertable into the bolt hole, and to be able to pass through a hub hole of the disk wheel, and screwed into a screw hole formed in the table to fasten the disk wheel and the table. A plurality of bolts, one end of which is fixed to the plate and the other end of which is formed so as to fit into the bolt hole of the disc wheel, and which keeps the distance between the plate and the bolt hole of the disc wheel constant when the disc wheel is fixed. And a pin.

According to a fifth aspect of the present invention, there is provided the disk wheel straightening device according to any one of the first to fourth aspects, wherein the disk wheel straightening device has an arc-shaped notch portion in plan view that can abut the outer periphery of the rim of the disk wheel. When the correcting means presses the deformed portion of the disc wheel, a wheel receiver for supporting the disc wheel in a direction opposite to a horizontal component of the pressing force is provided.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing a disk wheel straightening device according to an embodiment. As shown in FIG. 1, a disk wheel straightening device 1 according to the present embodiment has two tables, three fixing means, and four frames. And 5 correction means.

The table 2 mounts an aluminum wheel A in a reclined state (a state in which the disk is placed up and down). For example, a rolled steel material for general structure is used, and a rectangular shape in a plan view that is long in the width direction of the table 2 is used. Formed in the center,
Three screw holes 2a formed in the vertical direction are provided at predetermined intervals along the width direction of the table 2.

The fixing means 3 is for fixing the aluminum wheel A to the table 2 and comprises a plate 6, bolts 7 and pins 8, all of which are made of rolled steel for general structure. ing. The plate 6 is formed in a disk shape, a bolt hole in which the bolt 7 can be inserted is formed in the center, and a plurality of fitting holes are provided in a circular shape at positions corresponding to the bolt holes of the aluminum wheel A. .
The bolt 7 is longer than the rim width of the aluminum wheel A and is formed so as to be insertable into a hub hole, and has a distal end portion provided with a male screw portion that can be screwed into the screw hole 2 a of the table 2. ing. The pin 8 is a rod-shaped body having small-diameter fitting projections formed at both ends thereof. A fitting projection at one end is fitted into a fitting hole of the plate 6 and a fitting at the other end is formed. The protrusion is formed so as to be able to fit with the bolt hole of the aluminum wheel A. Generally, the number of bolt holes on an aluminum wheel is four to six, so by preparing several types of plates 6 with different numbers of fitting holes according to that, it is possible to handle any aluminum wheel. Become. In addition, since the rim width of aluminum wheels varies widely, several types of bolts 7 and pins 8 of different lengths are prepared, and the one with the optimum length that matches the rim width of the aluminum wheel is selected. use.

The frame 4 is made of H-shaped steel, and has four beams 4b and 4c at the upper end and at a middle portion of four columns 4a standing in four directions. The table 2 is fixed in a horizontal state inside a support 4c. Two H-sections are laid horizontally on the lower side of the beam 4b in parallel toward the back side of the figure, and only the H-section on the right side in the figure is provided on the lower side of these H-sections via spacers. Brackets 9 and 10 having fitting holes 9a and 10a of the same diameter are respectively provided vertically. These brackets 9 and 10 are provided such that the center line of the correcting means 5 is located immediately above a straight line connecting the three screw holes 2a of the table 2 when the correcting means 5 is mounted. Further, two H-shaped steel members are vertically laid horizontally adjacent to each other on the inner side of the support 4a on the right side in the drawing toward the back side of the drawing. A support member 11 is interposed between the H-shaped steel and the bracket 10. The left support 4a and the aluminum wheel A
Between them, a spacer 12 and a wheel receiver 13 are interposed. The wheel receiver 13 is formed using, for example, a metal plate or a wooden plate, and has an arc-shaped notch in a plan view at the tip thereof according to the outer diameter of the rim of the aluminum wheel A.

The straightening means 5 comprises a hydraulic cylinder (actuator) 14, an attaching / detaching portion 15, first and second joints 16 and 17, and a press head 18, all of which are mechanical except for the hydraulic cylinder 14. It is made of structural carbon steel. In FIG. 2, the hydraulic cylinder 14 is a single-acting hydraulic cylinder having a capacity of about 10 tons, and a fitting hole 14a is formed at the tip of a piston rod. The attachment / detachment portion 15 is for attaching the hydraulic cylinder 14 to the bracket 9 (10), and a fitting hole 15a is formed on the front surface of the attachment / detachment portion so that a rear end portion of the cylinder body of the hydraulic cylinder 14 can be attached. On one side thereof, a fitting projection 15b that can be fitted into the fitting holes 9a and 10a of the brackets 9 and 10 is provided in a protruding manner. The first and second joints 16 and 17 are connected to the hydraulic cylinder 14
The first joint 16 is provided at one end with a fitting projection 16a that can be inserted into the fitting hole 14a, and the other end of the first joint 16 is provided for adjusting the distance from the tip of the piston rod to the press head 18. Are provided with fitting holes 16b which can be fitted with fitting protrusions 17a projecting from both ends of the second joint 17. These first and second joints 16 and 17
Are prepared in several types each having a different length, and the combination of lengths is changed according to the shape and size of the aluminum wheel A, or sometimes used alone.
The press head 18 is for pressing and correcting the deformed portion of the aluminum wheel A, and the tip is formed in an arc shape according to the shape of the deformed portion of the aluminum wheel A,
At the center of the rear end, a fitting projection 17 of the second joint 17 is provided.
A fitting hole 18a into which a can be inserted is formed. In addition,
Several types of press heads 18 having different tip shapes are prepared, and a press head suitable for the rim shape of the aluminum wheel A is appropriately selected and used.

Next, a method for correcting a deformed portion of the aluminum wheel A using the disk wheel correcting device 1 of the present embodiment will be described. In FIG. 1, first, an aluminum wheel A
Is placed on the straight line connecting the three screw holes 2a formed in the table 2 upward and toward the left side in the figure. At this time, table 2 and aluminum wheel A
The height of the aluminum wheel A can be adjusted by interposing a spacer having an appropriate height between the aluminum wheel A and the aluminum wheel A at the time of straightening.

Next, one of the fitting projections of the pin 8 is fitted into the bolt hole of the aluminum wheel A, and the plate 6 is placed thereon.
Are inserted into the bolt holes of the plate 6, the hub holes of the aluminum wheel A are inserted through the holes, and then screwed into the screw holes 2a of the table 2. Then, the aluminum wheel A and the table 2 are bolted together. Here, when the bolt 7 is tightened, the force of the head of the bolt 7 pressing the central portion of the plate 6 downward is transmitted uniformly to the position where the bolt hole of the aluminum wheel A is provided through the pin 8. Is done. Therefore, the aluminum wheel A is firmly fixed to the table 2 while maintaining the horizontal state. Subsequently, the wheel receiver 13 is brought into contact with the upper part of the left rim of the aluminum wheel A, and the wheel receiver 13 is fixed by interposing the spacer 12 between the wheel receiver 13 and the support 4a.

Next, an attachment / detachment portion 15 is attached to the rear end of the cylinder body of the hydraulic cylinder 14, and a first joint 16, a second joint 17,
And the press head 18 are sequentially mounted. At this time,
The first and second joints 16 and 17 have an optimal length considering that the press head 18 is in contact with the deformed portion of the aluminum wheel A when the straightening means 5 is mounted on the bracket 10. Use in combination.

The straightening means 5 assembled in the above manner is connected to the fitting projection 15b of the attaching / detaching portion 15 by the fitting hole 1 of the bracket 10.
It is mounted on the bracket 10 by being inserted into the bracket 10a. Here, the correcting means 5 falls down greatly as shown in the figure,
The bracket 10 is obliquely provided substantially horizontally.

After setting the aluminum wheel A and the correcting means 5 at predetermined positions, the piston rod of the hydraulic cylinder 14 is gradually extended. Then, the press head 18 presses the deformed portion of the aluminum wheel A outward in the radial direction of the disk, thereby correcting the deformation in the disk radial direction. At this time, a reaction force of the pressing force acts on the bracket 10 via the attaching / detaching portion 15, and this reaction force is
Column 4a via a support member 11 provided on the right side in FIG.
Therefore, even if an excessive force acts on the bracket 10, no deformation or breakage occurs. Further, the force applied to the aluminum wheel A when pressed is transmitted from the wheel receiver 13 to the support 4a via the spacer 12, so that stress concentration does not occur in the hub hole into which the bolt 7 is inserted. Further, since the direction in which the piston rod of the hydraulic cylinder 14 extends and the direction in which the fitting projection 15b is fitted into and disengaged from the bracket 10 are orthogonal directions, when the piston rod is extended, the correcting means 5 It does not come off easily from 10.

Next, the correcting means 5 is detached from the bracket 10, the first joint 16 is removed, and the second joint 17 and the press head 18 are sequentially attached to the piston rod of the hydraulic cylinder 14. Thereafter, the correcting means 5 is mounted on the bracket 9 in a hanging state. At this time, the tip of the press head 18 is in contact with the deformed portion of the aluminum wheel A.

After the correction means 5 is mounted on the bracket 9 as described above, the piston rod of the hydraulic cylinder 14 is gradually extended. Then, the press head 18 deforms the deformed portion of the aluminum wheel A downward in the disk axial direction in the figure, whereby the deformation in the disk axial direction is corrected.
After attaching the correction means 5 to the bracket 9 as described above,
The piston rod of the hydraulic cylinder 14 is gradually extended. Then, the press head 18 deforms the deformed portion of the aluminum wheel A downward in the disk axial direction, thereby correcting the deformation in the disk axial direction.

As described above, the disk wheel straightening apparatus 1 of the present embodiment has the following effects. The mounting position of the correcting means 5 is changed from the bracket 10 to the bracket 9, and at this time, the distance between the hydraulic cylinder 14 and the press head 18 is changed to the first and second joints 1.
By making adjustments by the steps 6 and 17, it is possible to correct the disk radial direction and the disk axial direction of the aluminum wheel A, so that only one hydraulic cylinder is required and the device can be reduced in size and weight. . The fitting projection 15b of the attaching / detaching portion 15 is attached to the bracket 9 (1
The straightening means 5 can be quickly attached and detached by a simple operation of fitting or removing the fitting means 9a (10a) in the step 0).

The embodiment of the present invention has been described above. However, the specific configuration of the present invention is not limited to the present embodiment, and there are design changes and the like within a range not departing from the gist of the invention. This is also included in the present invention. For example, in the present embodiment, the brackets 9 and 10 are configured to hang from the beam 4b of the frame 4 via the H-shaped steel, but the support for mounting the correcting means can be attached to any position. As shown in FIG. 4, if a configuration in which an H-section steel is laid on the right column 4 a of the frame 4 in the drawing and the bracket 19 is attached thereto is used, the number of parts can be reduced as compared with the first embodiment. it can.

In this embodiment, when the correction means 5 is mounted on the bracket 9 (10), the fitting projection 15b of the attaching / detaching portion 15 is fitted to the fitting hole 9a (10) of the bracket 9 (10).
Although the fitting is only performed in a), the correction means 5 can be more securely fixed by providing a set screw on the bracket 9 (10).

Further, in this embodiment, three screw holes 2a for fastening the table 2 and the aluminum wheel A with bolts are provided in the table 2, but the number of screw holes is arbitrary.

[0028]

Since the present invention is configured as described above, the following effects can be obtained. In the disk wheel straightening device according to claim 1, the straightening means is detachable,
In addition, since a plurality of support portions that can be supported at an arbitrary angle in the vertical direction are provided and the fixing position of the disk wheel can be adjusted so that one of the support portions is located immediately above the deformed portion, the deformation in the disk axial direction is achieved. When straightening, the straightening means is mounted in a hanging state on the support portion located directly above the deformed portion, and when straightening the disc in the radial direction, the straightening means is mounted on the other support portion in an inclined state when straightening the disc in the radial direction. Can be corrected by using only one correction means. Therefore, since only one actuator is required, the size and weight of the device can be reduced.
Further, since the movable part is only the correcting means, the configuration is simplified, and the manufacturing cost can be reduced as compared with the conventional device.

In the disk wheel straightening apparatus according to the second aspect, the straightening means can be quickly attached and detached by a simple work of fitting or removing the fitting hole of the bracket into the fitting projection of the actuator. Time can be reduced. In addition, since the direction in which the straightening device is attached and detached and the direction in which the actuator of the straightening means presses the disk wheel are perpendicular to each other, the fitting projection is formed to have a certain length so that it does not easily come off during straightening. .

In the disk wheel straightening device according to the third aspect of the present invention, the center line of the straightening means is on the same plane irrespective of the support portion to which the straightening means is attached, so that the deformation in the radial direction of the disc is straightened. When correcting deformation in the axial direction of the disk, it is possible to save the trouble of moving the deformed portion of the disk wheel and fixing it again to the table.

In the disk wheel straightening apparatus according to the fourth aspect, the disk wheel can be easily fixed to the table only by tightening bolts at one place. Therefore, when correcting a plurality of deformed portions, the disk wheel is fixed. Work can be done quickly. In addition, since a pin for maintaining a constant distance between the bolt hole and the plate of the disc wheel is interposed, the force of the bolt head pressing the plate at the time of bolt fastening is applied to the disc wheel via the pin. Is uniformly transmitted to the position where the bolt hole is provided. Therefore, the disk wheel can be firmly fixed to the table while maintaining the horizontal state.

In the disk wheel correcting apparatus according to the fifth aspect, when the correcting means presses the disk wheel, the horizontal component of the pressing force applied to the disk wheel is transmitted to the wheel receiver, so that the local area of the disk wheel is stress concentrated. No deformation or breakage occurs.

[Brief description of the drawings]

FIG. 1 is a front view showing a disk wheel straightening device according to an embodiment.

FIG. 2 is a perspective view showing a correcting means of the embodiment.

FIG. 3 is a front view showing the disk wheel straightening device according to the embodiment.

FIG. 4 is a front view showing a disk wheel straightening device according to another embodiment.

FIG. 5 is a front view of a main part of a conventional disk wheel straightening device.

[Explanation of symbols]

A Aluminum wheel 1 Disc wheel straightening device 2 Table 2a Screw hole 3 Fixing means 4 Frame 4a Post 4b, 4c Beam 5 Straightening means 6 Plate 7 Bolt 8 Pin 9, 10, 19 Bracket (supporting portion) 9a, 10a, 14a, 15a , 16b, 18a Fitting hole 11 Support member 12 Spacer 13 Wheel receiver 14 Hydraulic cylinder (actuator) 15 Detachable part 15b Fitting projection 16 First joint 16a, 17a Fitting projection 17 Second joint 18 Press head

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B21D 3/14 B21D 3/10 B60B 21/00

Claims (5)

(57) [Claims] 1. A table on which an aluminum disk wheel is placed with the disk upside down, fixing means for fixing the disk wheel to the table, and a press head abutting on a deformed portion of the disk wheel. Correction means having an actuator for causing the press head to reciprocate linearly to press the deformed portion; and a plurality of correction means provided above the table and capable of supporting the correction means detachably and vertically at an arbitrary angle. A disk wheel, wherein the fixing means is capable of adjusting a fixed position of the disk wheel so that one of the support portions is located immediately above a rim flange of the disk wheel. Straightening equipment. 2. The plurality of support portions are brackets having fitting holes formed in the same direction, and a cylindrical fitting protrusion is formed on a side of a rear end portion of the actuator. 2. The disk wheel straightening device according to claim 1, wherein a protrusion is provided so as to be freely fitted into and removed from a fitting hole of the bracket. 3. A plurality of support portions are provided on the same straight line, and when a correction means is attached to these support portions, a center line of the correction means is directly above a diameter line of a disk wheel fixed to the table. The disk wheel straightening device according to claim 1 or 2, wherein 4. The fixing means is mounted on the disc wheel when the disc wheel is fixed and has a bolt hole formed in the center thereof, and can be inserted into the bolt hole and can be inserted through a hub hole of the disc wheel. A bolt which can be screwed into a screw hole formed in the table to fasten the disc wheel to the table, and one end of which is fixed to the plate and the other end is fitted in a bolt hole of the disc wheel. The disk wheel according to any one of claims 1 to 3, comprising a plurality of pins formed so as to be able to maintain a constant distance between a bolt hole of the disk wheel and the plate when the disk wheel is fixed. Straightening equipment. 5. A disk-shaped wheel having a notch in an arc shape in a plan view that can abut on an outer periphery of a rim of the disk wheel, wherein the correcting means presses a deformed portion of the disk wheel in a direction opposite to a horizontal component of the pressing force. 2. A wheel receiver for supporting a disc wheel is provided.
The disk wheel straightening device according to any one of claims 4 to 4.