JPH1183408A - Surface runout inspection device for hub - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inspection device for a runout of a disk attaching surface of a hub, in consideration of a runout of a disk end surface appeared after assembling. SOLUTION: This device is to inspect a surface runout of a disk attaching surface 108, as for a hub 105, which is attached to the end part of a rotation shaft through a through hole 106 and in which a disk shape part is attached to its flange part 108. In this case, a supporting means 1 to support the hub 105 rotatively, a rotation driving means to rotate the hub 105 supported by the supporting means 1 with a center axis of the through hole 106 as a center, a reference plate 45 attached detachably to the disk fitting surface 108 and a run out detecting means to detect a surface runout of an opposite surface to the attaching side of the reference plate 45 attached to the disk attaching surface 108, are provided. Thereby, an inclination status of a surface including 3 points in the highest projecting part on the disk fitting surface 108 can be detected, and an inspection can be carried out in consideration of a runout of the disk end surface appeared after the hub and the disk are assembled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hub inspection device which is attached to an end of a rotating shaft through a through hole provided at a center portion, and in which a disk-shaped component is attached to a flange portion. The present invention relates to an inspection device for detecting a runout of the disk mounting surface of the hub.

[0002]

2. Description of the Related Art A hub, which is attached to the end of a rotating shaft through a through hole provided at the center and has a disk-shaped component mounted on a flange, is provided at both ends of an axle of an automobile or the like. And a hub to which the brake disc and wheels are mounted.

As shown in FIG. 6, this hub is usually attached to an end of an axle 101 as a hub unit 104 for attaching a wheel 102 in an automobile or the like. A brake disk 110 for a disk brake is mounted on the hub unit 104, and a tire 103 is mounted on the wheel 102.

FIG. 7 shows a hub unit 104 and a brake disk 110 of a different type from those of FIG. 6, but as shown in FIG. 7, the hub unit 104 has a hub 106 having a through hole 106 at the center. 105 and this through hole 106
And a bolt 107 for mounting the brake disc 110 and the wheel 102. The brake disc 110 is mounted on a flange end face of the hub 105 (disc mounting face). ) 108. It should be noted that five bolts 109 are attached to the hub unit 104 shown in FIG. 7, and each of the bolts 109 is provided at five equally spaced positions on an arrangement pitch circle. FIG. 7 shows a cross section including two bolts 109.

[0005] Hub unit 104 and brake disc 1
Numeral 10 is rotatable about the axis of the axle 101, and both end surfaces 111, 1 of the brake disc 110 are provided.
When the brake pad (not shown) comes into contact with 12, the rotation is braked.

By the way, end surfaces 111 and 112 of a brake disc 110 which rotates about an axis of an axle 101.
If the shaft is largely deviated with respect to the axis of the axle 101, it may cause vibrations, or may cause unevenness in contact with a brake pad (not shown) with respect to the brake disk 110. This causes inconvenience such as uneven wear of the pad (not shown).

The end surface 11 of the brake disc 110
The run-out of 1,112
Of the disk mounting surface 108 with respect to the brake disk 110 and the mounting surface 11 of the brake disk 110 to the hub 105.
3 and the deflection of the end faces 111 and 112 appear as a composite.

Therefore, conventionally, the deflection of the disk mounting surface 108 with respect to the through hole 106 of the hub 105 and the mounting surface 1 of the brake disk 110 have been described.
By controlling the run-out of the end surfaces 111 and 112 based on the design 13, the run-out accuracy of the hub 105 and the brake disk 110 after processing is controlled so as not to exceed an allowable range, and actually inspected and confirmed. , End surfaces 111 and 11 of the assembled brake disc 110
2 was guaranteed.

Conventionally, in order to inspect the run-out of the hub 105 and the brake disk 110, for example, the hub 105 is turned upside down by using an appropriate inspection jig on the surface plate, After supporting the hub 105 so as to be rotatable about the central axis of the through hole 106, an indicator such as a dial gauge is pressed against the disk mounting surface 108 to rotate the hub 105 so that the contact of the indicator can be moved in and out. The value of the corresponding indicator was read, and inspection was performed by directly measuring the circumferential unevenness of the disk mounting surface 108 with reference to the center axis of the through hole 106.

Similarly, the mounting surface 113 of the brake disk 110 is supported by using an inspection jig on a surface plate so that the brake disk 110 is rotatable around an axis. Or, press the indicator against 112 to rotate the brake disc 110, read the value of the indicator according to the ingress and egress of the contact of the indicator, and directly detect the circumferential unevenness of the end surface 111 or 112 with respect to the mounting surface 113. It was inspected by measuring.

[0011]

However, in the method for directly measuring the circumferential unevenness of the disk mounting surface 108 of the hub 105 as described above, the brake disk after the hub 105 and the brake disk 110 have been assembled is used. In some cases, it is difficult to effectively predict the deflection of the end face 111 or 112 of the 110.

FIG. 8 is a diagram showing an uneven state of the disk mounting surface 108 of the hub 105 with reference to the center axis of the through hole 106. A concave portion is indicated by a triangle and a convex portion is indicated by a circle. For example, when it is assumed that the uneven state of the disk mounting surface 108 is as shown in FIG.
The mounting surface 113 of the disk 10 has a circle
Since the three convex portions indicated by the marks abut, if the convex portions have substantially the same value, the substantial influence of the runout of the disk mounting surface 108 on the runout of the end surface 111 or 112 of the brake disk 110 will be described. Is negligible.

As described above, in the conventional inspection method, the deflection of the disk mounting surface 108 is represented by the difference between the concave portion and the convex portion, and this deflection directly affects the deflection of the end surface 111 or 112 of the brake disk 110. It is premised on doing. Therefore, according to the conventional inspection method, when the hub 105 and the brake disk 110 are mounted, the deflection of the disk mounting surface 108 is caused by the end surface 111.
Or, it was not possible to perform a practical inspection in consideration of the influence on the swing of the 112.

The hub 105 and the brake disc 1
By assembling in consideration of the state of each run-out of 10, there is a case where run-out of the end face 111 or 112 after assembling can be effectively reduced.

FIG. 9 is a diagram showing the unevenness of the disk mounting surface 108 of the hub 105 with reference to the center axis of the through hole 106 as in FIG. Are indicated by. FIG. 10 is a diagram showing an uneven state of the end surface 111 of the brake disk 110 with reference to the mounting surface 113.
Each is indicated by a mark.

For example, the disk mounting surface 10 of the hub 105
8 is the state shown in FIG. 9, and the uneven state of the end face 111 of the brake disc 110 is the state shown in FIG.
When these are assembled so that the concave portion of the hub 105 and the concave portion of the brake disk 110 overlap with each other, the vibration of the brake disk 110 is added to the vibration of the hub 105, and The deflection of the end face 111 of the brake disc 110 is further increased.
Conversely, when these are assembled such that the concave portion of the hub 105 and the convex portion of the brake disc 110 overlap, the hub 105
And the run-out of the brake disc 110 are offset,
The run-out of the end surface 111 of the brake disc 110 after assembly is reduced.

However, conventionally, in consideration of such a state of the run-out of the hub 105 and the brake disk 110, the assembly has not been performed so that the run-out of the brake disk 110 after the assembly can be effectively reduced. .

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide an apparatus for inspecting a runout of a disk mounting surface of a hub in consideration of a runout of a disk end surface appearing after assembly. Another object of the present invention is to provide a surface run-out inspection device that can effectively reduce the run-out of the brake disk end surface after assembly.

[0019]

The invention according to claim 1 of the present invention for achieving the above object is mounted on an end of a rotating shaft through a through hole provided at a center portion, and An inspection device for inspecting a runout of the disk mounting surface for a hub in which a disk-shaped component is assembled to a flange portion, wherein a support means rotatably supports the hub around a center axis of the through hole. Rotating drive means for rotating the hub supported by the support means about the center axis of the through-hole, a reference plate detachably provided on a disk mounting surface of the hub, and mounted on the disk mounting surface. And a run-out detecting means for detecting run-out of a surface of the reference plate opposite to the mounting side.

According to the present invention, after the hub is rotatably supported by the support means, the reference plate is mounted on the disk mounting surface of the hub. Next, the hub is rotated about the center axis of the through hole together with the reference plate by the rotation driving means, and the runout of the surface of the reference plate opposite to the mounting surface is detected by the shake detection means. As described above, according to the present invention, the reference plate is provided in contact with the disk mounting surface of the hub, and the deflection of the reference plate on the surface opposite to the abutting surface is detected. It is possible to detect the tilt state of the surface including the three points of the high protrusions. Compared with the conventional inspection that simply inspects the unevenness of the disk mounting surface, the deflection of the disk end surface that appears after the hub and the disk are assembled is reduced. It is possible to carry out a surface run-out inspection of the disk mounting surface in consideration.

According to a second aspect of the present invention, in addition to the configuration of the first aspect of the present invention, there is provided an urging means for urging the reference plate toward the disk mounting surface of the hub.

According to the present invention, the reference plate is urged toward the disk mounting surface of the hub by the urging means, so that the reference plate can abut on the disk mounting surface without bias.
An accurate surface run-out inspection can be performed.

According to a third aspect of the present invention, in addition to the configuration of the first or second aspect of the present invention, based on the shake detection result,
Indexing means for indexing the hub at a predetermined angle in accordance with the state of surface runout is provided.

According to the present invention, since the hub is indexed at a predetermined angle in accordance with the state of the runout of the disk mounting surface, the state of the runout of the disk mounting surface can be easily recognized, and the disk to be assembled can be easily assembled. Considering the state of the shake, these can be assembled so that the mutual shake is offset after the two are assembled. For example, assuming that the hub is indexed at a predetermined angle so that the low inclination of the disk mounting surface is located at a substantially constant position, the deflection of the disk end surface with respect to the mounting surface relating to the disk is inspected in advance, and the deflection is determined. When both parts are assembled so that the large part and the part of the indexed disk mounting surface having a low surface inclination overlap, the disk run-out of the disk end surface after the mounting becomes smaller than that of the single disk. As described above, by indexing the hub at a predetermined angle in accordance with the state of the runout of the disk mounting surface, it is possible to assemble the hub and the disk so that the runout of the disk end face after assembly is smaller than the runout of the single unit. It becomes possible.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings.

The device for inspecting the runout of a hub according to the present embodiment includes a support rotation device 1 shown in FIGS. 1 and 2, a shake detection device 30 shown in FIGS. And a control device (not shown) for controlling the operation of the shake detection device 30. Hereinafter, details of each device will be described. In this example, the hub unit 104 shown in FIG. 7 is to be inspected.

FIG. 1 is a front view showing the support rotating device in partial cross-section, and FIG. 2 is a side view of the supporting rotary device in the direction of arrow A. As shown in FIG. Reference numeral 1 denotes a structure in which each of the constituent members is provided on a support base 2. In the figure, reference numeral 3 denotes a lifting drive cylinder, and as shown in FIG.
Is attached to a support plate 4 provided below the support base 2 via a support rod 5. As shown in FIG. 1, a piston rod 3a of the lifting drive cylinder 3 extends downward through the support plate 4, and a connecting plate 6 is attached to a tip of the piston rod 3a. On the upper surface of the connecting plate 6, two lifting drive rods 7 are erected. The lifting drive rods 7 are inserted into guide bushes 8 provided on the support base 2 and guided by the guide bushes 8. It can be moved up and down freely.

Reference numeral 12 denotes a lower holding rod erected on the upper surface of the support base 2 and has a fitting portion 12a at the tip end thereof for fitting to the inner ring of the bearing 107 of the hub unit 104. . The fitting portion 12a is fitted to the inner ring of the bearing 107 to support the inner ring coaxially with its own axis and to support the end surface of the inner ring. A bearing body 15 provided with a flange 15a on an upper part is provided on the body of the lower holding rod 12 with a bearing 16a.
The bearing body 15 is rotatable about the axis of the lower holding rod 12. A ring gear 18 is provided on the upper surface of the flange 15 a of the bearing body 15, and a support plate 23 is provided on the ring gear 18 via a spacer 22.

In FIG. 2, reference numeral 20 denotes a drive motor provided on the support base 2 on the side of the lower holding rod 12, and a ring gear 19 is mounted on a rotation shaft 20a of the drive motor 20; A gear 19 meshes with the ring gear 18. By driving the drive motor 20, the ring gear 18 can be rotated in a predetermined direction via the ring gear 19. In this example, a DD motor having a rotation position detection function is used as the drive motor 20, and the rotation angle of the drive motor 20 can be detected.

In FIG. 1, reference numeral 9 denotes a support ring made of a ring-shaped member, and an upper end of the upper drive rod 7 with the base end 12b of the lower holding rod 12 inserted into the inside diameter. It is attached to the part. A rotary ring 11 made of a member having the same ring shape is provided on the support ring 9, and a holding ring 10 having a hook-like vertical section, which engages with the outer peripheral surface and the upper end surface of the rotary ring 11, is provided. Is provided. The rotation ring 11 is guided by the support ring 9 and the holding ring 10 and is rotatable about its own axis.

Reference numeral 13 denotes a lifting drive rod, the lower end of which is attached to the rotating ring 11 and the bearing body 1
The upper end of the guide bush 14 provided through the flange portion 5 and the ring gear 18 is inserted. Reference numeral 21 denotes a rotary drive rod, the lower end of which is connected to the upper end of the lifting drive rod 13. Further, a fitting hole 21 a into which the head of the bolt 109 of the hub unit 104 is fitted is provided at the upper end of the rotation drive rod 21. The lifting drive rod 13 and the rotation drive rod 21 are provided on a pitch circle having the same diameter as the pitch circle on which the bolts 109 of the hub unit 104 are provided, and five pairs of lifting drive rods having the same number as the bolts 109 are provided. 13 and the rotation drive rod 21 are provided at the corresponding positions, or at least three pairs are provided by omitting the intermediate members. In this example, three pairs of lifting drive rods 13 and rotation drive rods 21 are provided.

FIG. 3 is a front view showing a partial cross section of the shake detecting device, and FIG. 4 is a side view of the shake detecting device in the direction of arrow B. As shown in FIG. Numeral 30 designates a configuration in which each component is provided on a support base 31. In the figure, reference numeral 32 denotes a lifting drive cylinder, which is mounted on the support base 31 via a mounting plate 33 as shown in FIG. 3, and a support plate 36 is mounted on the tip of a piston rod 32a. As shown in FIG. 4, guide rods 58 are provided upright on the upper surface of the support plate 36, and guide bushes 56 provided on the upper and lower surfaces of the mounting plate 33, respectively.
The guide rod 58 is guided by 57. Thus, when the support plate 36 is moved up and down by being driven by the elevation drive cylinder 32, the posture is controlled by the guide rods 58 and the guide bushes 56 and 57, and the support plate 36 is kept horizontal. It can be moved up and down.

In FIG. 3, reference numeral 34 denotes a support rod provided on the lower surface at the center of the support plate 36, and reference numeral 35 denotes support rods similarly provided at four corners on the lower surface of the support plate 36. A support plate 37 is attached to the distal ends of the support rods 34 and 35.
Is attached.

Reference numeral 38 denotes an upper holding rod provided on the lower surface of the support plate 37, which is provided coaxially with the support rod 34. The upper holding rod 38 is provided at its distal end with a fitting portion 3 having the same structure as that of the lower holding rod 12.
8a, the fitting portion 38a is fitted to the inner ring of the bearing 107 of the hub unit 104 to support the inner ring coaxially with its own axis and to press the end surface of the inner ring. I have. An upper coupling 39 and a lower coupling 4 are provided on the body of the upper holding rod 38.
0 is rotatably mounted via a bearing 41. Reference numeral 43 denotes a support ring 43 made of a ring-shaped member having a substantially S-shaped vertical cross section. The upper end of the support ring 43 is engaged with the lower end of the lower coupling 40, and is suspended from the lower end of the lower coupling 40. It is provided to lower. A compression coil spring 44 is provided between the lower coupling 40 and the support ring 43, and the support ring 43 is urged downward by the compression coil spring 44.

The reference plate 4 is provided on the lower end surface of the support ring 43.
5 is attached. The reference plate 45 is a disc-shaped member whose upper and lower surfaces are parallel and flat, and is provided so that the upper holding rod 38 penetrates a through hole 45 a provided at the center thereof. The reference plate 45
A bolt insertion hole 45b is provided at a position corresponding to the bolt 109 provided on the hub unit, and the same angle as the angle at which the bolt insertion hole 45b is provided outside the pitch circle where the bolt insertion hole 45b is provided. An index hole 45c is provided at an angular position.

Reference numeral 53 denotes a lifting drive cylinder provided on the lower surface of the support plate 36, and an indexing rod 54 is connected to the lifting drive cylinder 53. Indexing rod 5
Reference numeral 4 is guided by guide bushes 55 provided on the upper and lower surfaces of the support plate 37, and penetrates the support plate 37 so that its tip is inserted into the index hole 45 c of the reference plate 45.

A detection head 51 is supported by two guide rods 49. This guide rod 49 is attached to a guide bush 50 by a bracket 46 having a substantially U-shape.
Is supported through. The bracket 46 is attached to the support plate 37. Reference numeral 47 denotes a lifting drive cylinder provided on the back of the bracket 46. A connecting plate 48 is provided at the upper end of the guide rod 49, and the connecting plate 48 contacts the upper end of the piston rod 47 a of the lifting drive cylinder 47 due to the weight of the connecting plate 48, the guide rod 49, and the detection head 51. In contact.

A linear gauge 52 is fixed to the bracket 46 by a gauge mounting bracket 52a. As the detection head 51 moves up and down, the connecting plate 48
Moves up and down, and the movement of the connecting plate 48 is
Is to be detected.

C) Overall Configuration As described above, the hub run-out inspection device according to the present embodiment includes the support rotation device 1 and the run-out detection device 30, and as shown in FIG. The shake detection device 30 is provided above the support rotation device 1, and is provided such that the lower holding rod 12 and the upper holding rod 38 are coaxially located. Although not particularly shown, both the support frames 2 and 31 are mounted on different frames, and the support rotation device 1 and the shake detection device 30 are integrated into one device.

Although not described in detail, the control device (not shown) includes a microcomputer including a CPU, a RAM, a ROM, an I / O port, and the like. Detection device 3
0, and controls the operation of each unit as described later.

Next, a description will be given of a mode of inspecting the surface runout of the disk mounting surface 108 of the hub 105 using the surface runout inspection apparatus having the above configuration.

First, the lifting drive cylinder 3 is driven to retract its piston rod 3a, and the lifting drive rod 7 is raised. As a result, the support ring 9 connected to the lifting drive rod 7 rises, and the rotating ring 11 placed on the support ring 9 and the lifting drive rods 13 and 21 connected thereto are raised by the lifting of the support ring 9. It rises with it. At this time, the piston rod 3
2a is at the retreat end.

Next, as shown by a two-dot chain line in FIG. 1, the hub mounting unit 104 is mounted on the supporting and fixing device 1 with the disk mounting surface 108 of the hub unit 104 facing upward. That is, the hub unit 104 is mounted on the rotary drive rod 21 such that the head of the bolt 109 is inserted into the fitting hole 21a of the rotary drive rod 21.

Next, the lifting drive cylinder 3 is driven to project its piston rod 3a downward, and the lifting drive rod 7 is lowered. As a result, the support ring 9 connected to the lifting drive rod 7 descends, and the rotating ring 11 mounted on the support ring 9 and the lifting drive rod 13 and the rotation drive rod 21 connected thereto move down the support ring 9. It descends with it. As a result, the fitting portion 12a of the lower holding rod 12 is attached to the inner ring of the bearing 107 of the hub unit 104.
Are fitted, and the hub unit 104 is connected to the lower holding rod 1.
2 is placed. At this time, the rotation drive rod 21
A slight gap is formed between the upper end surface of the hub unit 104 and the hub unit 104.

Next, the elevation drive cylinder 32 of the shake inspection device 30 is driven to project the piston rod 32a downward. As a result, the support plate 36 descends, and accordingly, each member attached to the support plate 36 descends. As a result, the fitting portion 3 of the upper holding rod 38
8a is fitted to the inner ring of the bearing 107 of the hub unit 104, and the bearing 107 is held by the upper holding rod 8 and the lower holding rod 12 so as to be coaxial with them. Also, the bolt 109 of the hub unit 104
Is inserted through the bolt insertion hole 45b.
Abuts against the disk mounting surface 108 of the hub 105. still,
At this time, the reference plate 45 is urged downward by the compression coil spring 44, so that the disc mounting surface 10 is not biased.
8 abuts. The piston rod (not shown) of the lifting drive cylinder 53 is retracted, and the index rod 54 is at the rising end.

Next, the lifting drive cylinder 47 is driven to retreat its piston rod 47a downward. As a result, the guide rod 49 and the detection head 51 connected thereto descend by their own weight, and the lower end of the detection head 51 comes into contact with the upper surface of the reference plate 45. This state is shown in FIG.

Next, the drive motor 20 is driven to rotate the ring gear 19 around the axis. As a result, the ring gear 18 meshed with the ring gear 19 rotates, and the lifting drive rod 13, the rotation drive rod 21, the rotation ring 11, the bearing body 15, and the like connected thereto rotate similarly. With the rotation of the rotary drive rod 21, the head of the bolt 109 inserted into the fitting hole 21 a at the upper end of the drive rod 21 is pushed in the rotational direction, and the hub unit 1 is rotated.
04 rotates in the direction by the action of the bearing 107. The disk mounting surface 10 of the hub unit 104
The reference plate 45 that has come into contact with 8 also rotates together with the hub unit 104 due to the frictional force caused by the contact.

If the disk mounting surface 108 oscillates with respect to the axis of the through hole 106 in which the bearing 107 is inserted, that is, if the disk mounting surface 108 is inclined, the detection head 51 and the guide are The rod 49 and the connecting plate 42 attached thereto move up and down. When the connecting plate 42 moves up and down, the moving amount is detected by the linear gauge 52.

The rotation angle of the drive motor 20 and the detection result of the linear gauge 52 are input in real time to the control device (not shown).
Stores the rotation angle of the drive motor 20 and the detection result of the linear gauge 52 in association with each other.

When the reference plate 45 makes at least one rotation, the control device (not shown) calculates the rotation angle of the drive motor 20 having the largest detection value or the rotation angle having the smallest detection value from the detection result. After that, the drive motor 20 is moved so that the index hole 45c of the reference plate 45 is located immediately below the index rod 54 near the rotation angle.
Is calculated, and the drive motor 20 is driven so as to reach the angle. Thereafter, the lifting drive cylinder 53 is driven to lower the index rod 54 downward, and the tip is inserted into the index hole 45c of the reference plate 45. As a result, the hub unit 104 can be indexed such that the runout of the disk mounting surface 108, that is, the inclination of the surface is substantially constant with respect to the present apparatus. For example, the hub unit 104 may be positioned so that a low inclination of the disc mounting surface 108 is located at the operation side of the apparatus where the operator works.
Can be determined.

After indexing the hub unit 104 in this manner, the elevation drive cylinder 32 is driven to retract the piston rod 32a, and then the elevation drive cylinders 47 and 53 are respectively driven to detect the shake detection device 30. Parts are returned to their original positions.

Then, the lifting drive cylinder 3 is driven to raise the lifting drive rod 7, and the support ring 9, the rotating ring 11, the lift drive rod 13 and the rotation drive rod 21 are raised.
Is raised, and the hub unit 104 is raised with the hub unit 104 placed on the rotary drive rod 21. As a result, the hub unit 104 can be easily removed from the support rotation device 1, and the hub unit 104 can be removed from the support rotation device 1 using a tact feeder or the like and sent to the next process.

Thereafter, by sequentially performing the above-described series of operations, the runout of the hub unit 104 can be repeatedly inspected.

The detection result stored in the control device is C
Output can be performed by an appropriate output device such as an RT or a printer.

As described in detail above, according to this device,
The reference plate 45 is attached to the disk mounting surface 10 of the hub unit 104.
8 and the reference plate 4 on the opposite surface to the contact surface.
5, the inclination state of the surface including the three points of the highest convex portion of the disk mounting surface 108 can be detected, and the conventional inspection for simply inspecting the unevenness state of the disk mounting surface 108 can be performed. In comparison, a run-out inspection of the disk mounting surface 108 can be performed in consideration of the run-out of the disk end surface that appears after the hub 105 and the disk are assembled.

According to this device, the reference plate 45 is attached to the disk mounting surface 1 of the hub 105 by the compression coil spring 44.
Since the reference plate 45 is urged to the 08 side, the reference plate 45 can abut on the disk mounting surface 108 without bias. Therefore, the surface run-out inspection can be performed with high accuracy.

Since the hub 105 is indexed in accordance with the state of the disk mounting surface 108, the state of the disk mounting surface 108 can be easily recognized. In consideration of
After assembling both, these can be assembled so that mutual swings are offset. For example, assuming that the hub 105 is indexed at a predetermined angle so that the low inclination of the disk mounting surface 108 is located at a substantially constant position, the deflection of the disk end surface with respect to the disk mounting surface is inspected in advance, and the If the two parts are assembled so that the part where the run-out is large and the part where the index of the disc mounting surface 108 is low overlap with each other, the run-out of the disk end face after the mounting becomes smaller than the run-out of a single unit. As described above, by dividing the hub 105 at a predetermined angle in accordance with the state of the runout of the disk mounting surface 108, the hub 105 and the disk are separated so that the runout of the disk end face after assembly is smaller than the runout of the single unit. It can be assembled.

The embodiment of the present invention has been described above. However, it is needless to say that the specific embodiment of the present invention is not limited to this. In particular, in the apparatus according to the present embodiment, The shake detecting means is of a contact type using the linear gauge 52, but is not limited to this. For example, a non-contact type using a proximity switch may be used. In this embodiment, the apparatus is a vertical apparatus, but a horizontal apparatus may be used. Further, the inspection target is not limited to the hub used in the above-described automobile and the like.

[Brief description of the drawings]

FIG. 1 is a front view partially showing a support rotation device constituting a surface deflection inspection device according to an embodiment of the present invention.

FIG. 2 is a side view in the direction of arrow A in FIG.

FIG. 3 is a front view showing, in partial cross section, a shake detection device constituting the surface shake inspection device according to the embodiment of the present invention.

FIG. 4 is a side view in the direction of arrow B in FIG. 3;

FIG. 5 is a front view showing, in a partial cross section, a state in which the hub unit is mounted on the surface deflection inspection device.

FIG. 6 is a sectional view showing an axle portion of the automobile.

FIG. 7 is a sectional view showing an assembled state of the hub unit and the brake disc.

FIG. 8 is an explanatory diagram showing an example of a state of deflection of a disk mounting surface of a hub.

FIG. 9 is an explanatory diagram showing an example of a state of deflection of a disk mounting surface of a hub.

FIG. 10 is an explanatory diagram illustrating an example of a state of deflection of a brake disk end surface.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support rotation device 12 Lower pinching rod 18 Ring gear 19 Ring gear 20 Drive motor 21 Rotation driving rod 38 Lower pinching rod 45 Reference plate 51 Detection head 52 Linear gauge 54 Indexing rod

Claims (3)

[Claims] 1. A disk mounting surface of a hub which is attached to an end of a rotating shaft through a through hole provided at a center portion and has a disk-shaped component attached to a flange is inspected for runout of the disk mounting surface. An inspection device, comprising: support means for rotatably supporting the hub about a central axis of the through hole; and rotation driving means for rotating the hub supported by the support means about the central axis of the through hole. A reference plate removably provided on the disk mounting surface of the hub; and a runout detecting means for detecting a runout of a surface of the reference plate mounted on the disk mounting surface opposite to the mounting side. A hub run-out inspection device characterized by comprising: 2. The hub run-out inspection device according to claim 1, further comprising: urging means for urging the reference plate toward the disk mounting surface of the hub. 3. The hub run-out inspection device according to claim 1, further comprising an indexing unit that determines the hub at a predetermined angle based on the run-out state based on the run-out detection result.