JP2899650B2 - Marking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a marking device for marking a measured unbalanced angle position on a work piece whose unbalanced angle position is measured by a dynamic balance tester. It is about.

<Prior Art> In a dynamic balance testing machine, when a work piece is corrected for unbalance at a different station, or when a work piece is classified according to the amount of unbalance, the work piece has an unbalanced angular position. For example, a marking device for marking the same is used.

FIG. 5 is a schematic perspective view showing an example of a conventional marking device.

The conventional marking device 1 is attached to the dynamic balance tester main body 2 and can mark the unbalanced angular position of the workpiece 3 measured by the dynamic balance tester main body 2 on the workpiece 3. .

The marking device 1 includes a support 4, a cylinder device 5 attached to a tip of the support 4, and a marking unit 6 fixed to the cylinder device 5. Be moved. A lower end of the marking unit 6 is provided with, for example, a chalk or a stamp 7, and the mark can be marked on the work piece 3 by bringing the chalk or the stamp 7 into contact with the surface of the work piece 3.

When marking a mark, it is necessary to rotate the work piece 3 by the dynamic balance tester main body 2 so that the position to be marked on the work piece 3 faces the marking unit 6.

<Problems to be Solved by the Invention> Therefore, when the conventional marking device 1 is used, the workpiece 3 must be rotated to a predetermined position on the dynamic balance testing machine main body 2 side, and special control for that is required. there were.

There is no problem when the size of the workpiece 3, that is, the diameters thereof are all equal, but when the type of the workpiece 3 changes and the diameter changes, the position of the marking device 1 with respect to the dynamic balance tester main body 2 is corrected, The marking unit 6 had to be adjusted so as to face a predetermined peripheral surface of the workpiece 3.

More specifically, for example, when the position of the marking device 1 is adjusted for a 12-inch tired wheel, a mark cannot be marked on a 15-inch tired wheel. An operation of shifting the position of the marking device 1 for a wheel was required.

An apparatus for solving such a drawback is described in JP-A-57-179722. According to this publication, a configuration in which a marking device can be moved in a radial direction with respect to a rotating body is disclosed.

However, using any of the above-described conventional techniques, when trying to mark unbalanced positions on the upper and lower surfaces with respect to the work piece 3, there is a problem that the unbalanced positions cannot be marked on the upper and lower surfaces at the same time. Was.

The present invention provides an apparatus for solving such a problem, and provides a marking apparatus capable of simultaneously marking a measured unbalance position of two surfaces on a workpiece on which two surfaces are unbalanced. The purpose is to provide.

<Means for Solving the Problems> The present invention is a marking device for marking a measured unbalance position on a workpiece on which two unbalances have been measured, and comprising: First marking means for marking the unbalanced position on the workpiece, means for rotating the workpiece such that the measured unbalanced position of one of the unbalanced surfaces faces the first marking means, and A second marking means for marking an unbalanced position on the other unbalanced surface of the workpiece, wherein the second marking means is rotated and stopped to face the first marking means. Moving means for moving the marking portion by an arbitrary amount in two directions orthogonal to each other in a plane parallel to the other unbalanced surface of the workpiece so that the unbalanced position can be marked with respect to the workpiece. A marking device according to claim.

<Operation> According to the present invention, the second marking means can be operated while the workpiece is stopped at a predetermined angular position in accordance with the first marking means, so that the first marking means and the first marking means can be operated. By simultaneously operating the second marking means, unbalanced marking on two surfaces can be performed simultaneously.

An embodiment of the present invention will be described below in detail with reference to the drawings.

FIGS. 2, 3 and 4 are a front view, a right side view and a plan view of a dynamic balance tester provided with a marking device according to an embodiment of the present invention. In the figure, portions necessary for explaining the configuration of the marking device are shown with a cover or the like removed.

With reference to FIGS. 2 to 4, the dynamic balance tester 10 includes a vibration detector 12 mounted on a bed 11 and
Workpiece mounting part 13 protruding from the upper surface of vibration detecting part 12
And a roller table 15 used when moving the workpiece 14, a lifter 16 for driving the roller table 15 up and down, and an operation panel 17 operated by an operator when operating the dynamic balance tester 10 and the like. Is provided. Further, on the back side of the vibration detecting unit 12, a control rocker 18 having a built-in drive mechanism, electric / electronic circuit, and the like is erected, and a measuring device 19 is mounted above the control rocker 18. The unbalanced angular position, unbalanced amount, and the like of the workpiece 14 detected by the vibration detection unit 12 are measured by this measuring device.
Measured and displayed by 19.

An upper marking device 20 according to this embodiment is attached to an upper portion of the control rocker 18. Upper marking device 20
Includes a rail mechanism 22 attached to the tip of the support 21 and an upper marking unit 23 connected to the rail mechanism 22. The rail mechanism 22, which will be described later in detail, includes a mechanism that can move the upper marking unit 23 in two directions orthogonal to each other by an arbitrary amount, thereby moving the upper marking unit 23 to an arbitrary position in the horizontal plane direction. That can guide you. The upper marking device 20 is provided at a position facing the upper surface of the workpiece 14 when the workpiece 14 is mounted on the workpiece mounting portion 13.

The dynamic balancing tester 10 further includes a lower marking device 25.
Is provided. The lower marking device 25 is the same as the conventional marking device 1 (see the description of the prior art), and is attached to the vibration detecting unit 12 side.

The vertical marking device is provided in this way because the dynamic balance tester 10 is a device for measuring, for example, unbalance of a wheel with a tire.

In the case of wheels with tires, it is necessary to measure the unbalance of the upper and lower surfaces, respectively.
10 is also capable of measuring unbalance between the upper and lower surfaces. Since it is necessary to mark the result of the unbalance measurement on the upper and lower surfaces on the wheel with the tire as a workpiece, the upper marking device 20 and the lower marking device 25 are provided.

FIG. 1 is a diagram schematically showing a configuration which is a feature of the above-described upper marking device 20. As shown in FIG. Next, the configuration and operation of the marking device will be described with reference to FIG.

The rail mechanism 22 includes an X-direction moving member 26 attached to the support 21 and a Y-direction moving member 27 attached to the X-direction moving member 26. The X-direction moving member 26 has a frame 28 attached to the support 21, and the frame 28 is provided with two parallel guide rails 29 and one drive shaft 30 extending in the length direction. I have. The holding member 31 is inserted and fitted into the guide rail 29 and the drive shaft 32. When the drive shaft 30 is rotated by the motor 38, the holding member 31 is guided by the guide rail 29 and moves in the X direction. Can be.

A Y-direction moving member 27 is attached to the holding member 31.
The Y-direction moving member 27 also includes a frame 32, two guide rails 33 and one drive shaft 34 provided on the frame 32, a holding member 35 fitted on the guide rail 33 and the drive shaft 34, and a motor 39. Have. When the drive shaft 34 is rotated by the motor 39, the holding member 35 is movable in the Y direction along the guide rail 33.

Further, the upper marking unit 23 is attached to the holding member 35.

Here, the X direction and the Y direction, in other words, the X direction moving member
The length direction of the guide rail 29 and the drive shaft 32 provided on the 26 and the length direction of the guide rail 33 and the drive shaft 34 provided on the Y-direction moving member 27 are orthogonal to each other in a plan view. It is arranged in the direction.

Accordingly, the Y-direction moving member 27 is moved by an arbitrary amount in the X-direction by the X-direction moving member 26, and the Y-direction moving member 27 is moved.
Since the upper marking unit 23 attached to 27 can be moved by an arbitrary amount in the Y direction by the Y direction moving member 27, when viewed in plan, the X direction moving member 26 and the Y direction 27
Within the maximum travel range of the upper marking unit 23
Is configured to be able to be moved to any position. This is one of the features of this embodiment.

Next, the output of the vibration detection unit 12 is provided to a signal processing unit 36, which generates an unbalanced angular position signal and an unbalance amount signal based on the output from the vibration detection unit 12, and displays them. Output to device etc. Among the signals output from the signal processing unit 36, the unbalanced angular position signal is also supplied to the movement amount control circuit 37. In the movement amount control circuit 37, the movement amount in the X direction and the movement amount
The amount of movement in the direction is calculated, and the motor 38 of the X-direction moving member 26 and the motor of the Y-direction moving member 27 are calculated based on the calculation results.
Control 39. Thereby, the upper marking unit 23 is moved to a predetermined position.

After the upper marking unit 23 has been moved to a predetermined position, the upper marking unit 23 is driven, and a predetermined mark is marked at an unbalanced position of the workpiece 14.

As the upper marking unit 23, it is preferable to use, for example, a marking gun (trade name) for spraying a lump of paint in a thin beam shape. Of course, a marking unit including a chalk, a stamp, or the like may be used instead of the marking gun.

As described above, the upper marking device 20 allows the upper marking unit 23 to move to a desired position, so that the workpiece 14 remains fixed at a fixed position and the workpiece 14 is marked at an unbalanced angular position. Can be marked smoothly.

Therefore, the dynamic balance tester 10 using the upper marking device 20 has the following advantages.

In the case of a workpiece that needs to measure the unbalance between the upper and lower surfaces, such as a wheel with a tire, when the measured unbalance angle positions of the upper surface and the lower surface are marked by the upper marking device 20 and the lower marking device 25, respectively, Since the upper marking device 20 can be operated while the workpiece is moved to a predetermined angle position in accordance with the lower marking device 25, the lower mark and the upper mark can be simultaneously written. Therefore, when the dynamic balance tester 10 is incorporated in a factory line or the like, the time required to mark the unbalanced angular position can be greatly reduced as compared with the conventional one.

In the above embodiment, the upper marking device 20 is configured to mark the unbalanced angular position with respect to the workpiece 14 set in the dynamic balance tester 10, but the imbalance is measured by the dynamic balance tester. After that, the marking device according to the present invention can be used even when an unbalanced mark is made at another station.

Further, in this embodiment, the vertical type dynamic balance tester has been described as an example, but the marking device according to the present invention includes:
It should be noted that the present invention can be applied to a horizontal dynamic balance testing machine.

In this embodiment, the mark marked on the work piece is set at the unbalanced angle position, but the mark may also be written together with the unbalanced amount. That is, the color of the paint to be marked or the size of the mark may be changed so that the unbalance amount can be displayed.

<Effects of the Invention> Since the present invention is configured as described above, it is possible to provide a marking device capable of extremely smoothly marking an unbalanced angle position on a workpiece. In addition, the unbalanced angle position can be marked while the workpiece is fixed at the fixed position, and the unbalanced angle position can be marked without imposing an extra burden on the main body of the dynamic balance tester.

Furthermore, since the unbalanced angular position can be marked on the upper and lower surfaces simultaneously with the work piece fixed for a workpiece or the like where the unbalanced angular position must be marked on the upper and lower surfaces. , The time required for marking can be greatly reduced.

[Brief description of the drawings]

FIG. 1 is an illustrative view showing a characteristic configuration of a marking device according to one embodiment of the present invention. FIGS. 2, 3, and 4 are a front view, a right side view, and a plan view of a dynamic balance tester provided with an embodiment of the present invention. FIG. 5 is an illustrative view for explaining an example of a conventional marking device. In the drawing, 10: dynamic balance tester, 14: workpiece, 20: upper marking device, 21: support body, 22: rail mechanism, 23: upper marking unit, 26: X-direction moving member , 27... Y-direction moving member, 37...

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G01M 1/26

Claims (1)

(57) [Claims] 1. A marking device for marking a measured unbalance position on a workpiece on which two unbalances are measured, wherein the marking device is configured to mark the unbalance position on one unbalance surface. First
Marking means for measuring the unbalance position of one of the measured unbalance surfaces in the first position
Means for rotating the workpiece so as to face the marking means, and second marking means for marking an unbalanced position on the other unbalanced surface of the workpiece, wherein the second marking means comprises: In a plane parallel to the other unbalanced surface of the workpiece, the marking portions are separated from each other so that the unbalanced position can be marked on the workpiece that has been rotated and stopped so as to face the first marking means. A marking device comprising moving means for moving an arbitrary amount in two orthogonal directions.