JPH02231540A - Marking device - Google Patents

Abstract

PURPOSE:To mark an unbalance angle position smoothly and speedily by providing a lengthwise member rotatably on a fulcrum and moving a marking means which marks a workpiece along the length direction of the lengthwise member. CONSTITUTION:The lengthwise member 22 held on a column 21 is driven by a motor 24 to rotate horizontally around the column 21. The lengthwise member 22 is provided with two parallel guide rails 26 which extend lengthwise and a driving shaft 27 is rotated by a motor 25 to guide and move an upper marking unit 23 under the guidance of the guide rails 26 as shown by an arrow R. The output of the vibration detector 12 of a dynamic balance testing machine is supplied to a signal processing part 28 to generate an unbalance angle position signal and an unbalance quantity signal, which are displayed. Further, the unbalance angle position signal is supplied to a parameter control circuit 29 and the motors 24 and 25 are controlled to drive the upper marking unit 23, thereby marking the unbalance position of the workpiece 14 as specified.

Description

[Detailed Description of the Invention] Industrial Application Fields The present invention provides markings for indicating the measured unbalance angular position on a workpiece whose unbalance angular position has been measured using a dynamic balance tester. It is related to the device.

<Prior art> In a dynamic balance testing machine system, when correcting the unbalance of a workpiece at another station, or when classifying workpieces into classes according to the amount of unbalance, it is necessary to set the unbalance angle to the workpiece. A marking device is used to mark the location, etc.

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 is capable of marking the unbalance angle position of the workpiece 3 measured by the dynamic balance tester main body 2 on the workpiece 3. .

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

When marking a mark, the workpiece 3 must be rotated by the dynamic balance tester main body 2 so that the position on the workpiece 3 to be marked faces the marking unit 6.

Problems to be Solved by the Invention Therefore, when using the conventional marking device 1, it is necessary to rotate the work bead 3 to a predetermined position on the dynamic balance tester main body 2 side, and for that purpose, it is necessary to perform a dynamic balance test. It was necessary to provide a special control mechanism in the machine body 2.

There is no problem if the sizes of the workpieces 3, that is, their diameters are all the same, but if the type of workpiece 3 changes and its diameter changes, the position of the marking device 1 is corrected, and the marking unit 6 It had to be adjusted so that it faced the predetermined side peripheral surface of No. 3.

To explain more specifically, for example, when the position of the marking device 1 is adjusted to be suitable for a wheel with a 12-inch tire, and the workpiece changes to a wheel with a 15-inch tire, the position of the marking device 1 changes. However, as it was, it was not possible to place an appropriate mark on a 15-inch wheel with tires. Therefore,
It was necessary to readjust the position of the marking device 1 to match the 15-inch wheel with tires.

This invention was made in order to eliminate the drawbacks of the conventional devices as described above, and allows the marking device itself, which was conventionally fixed in a fixed position, to be able to move freely to any position. It is an object of the present invention to provide a marking device that can be used to perform marking operations.

Means for Solving the Problems> The present invention is a marking device for marking an unbalance angle position measured by a dynamic balance tester on a workpiece, which marks a predetermined mark on the workpiece. A marking device comprising a marking means for marking, a longitudinal member rotatably provided around a fulcrum, and a moving means for moving the marking means along the length of the longitudinal member. It is.

The marking device of the present invention further includes a control means for controlling the rotation angle of the longitudinal member and the movement amount of the moving means based on the unbalance angle position signal output from the dynamic balance tester. It is characterized by this.

<Operation> By selecting the rotation angle of the longitudinal member and the amount of movement of the marking means along the longitudinal member, the marking means can be moved to an arbitrary position. That is, the position of the marking means can be freely controlled by two parameters: the rotation angle θ about the fulcrum and the distance r from the fulcrum.

If the above parameters θ and r are adjusted based on the unbalance angle position signal measured by the dynamic balance tester, the marking device will automatically align with the unbalance angle position of the workpiece in conjunction with the measurement by the dynamic balance tester. move to the desired position.

Embodiment> Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

3 and 4 are a front view and a right side view of a dynamic balance testing machine equipped with a marking device according to an embodiment of the present invention. In the figures, parts necessary for explaining the configuration of the marking device are shown with covers and the like removed.

To explain with reference to FIGS. 3 and 4, the dynamic balance tester 10 includes a vibration detection section 12 placed on a bed 11, a workpiece mounting section 13 protruding from the top surface of the vibration detection section 12, It includes a roller table 15 used when moving the workpiece 14, a glue lid 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. It is being Further, on the back side of the vibration detection unit 12, a control locker 18 having a built-in drive mechanism, electric/electronic circuits, etc. is installed, and a total of n devices 19 are attached to the upper part of the control locker 18. . The unbalance angle position, unbalance amount, etc. of the workpiece 14 detected by the vibration detector 12 are measured and displayed by this single measuring device.

The upper right side of the control locker 18 is lowered one level, and the upper marking device according to this embodiment is incorporated in that portion. The upper marking device includes a support 21, a longitudinal member 22 whose rear portion is rotatably supported by the support 21, and an upper marking unit 23 attached to the longitudinal member 22. The upper marking unit 23 can be moved back and forth to any position along the length of the longitudinal member 22 by a rail mechanism described later. As described above, the longitudinal member 22 itself is rotatable at its rear part about the support column 21. Therefore, the position of the upper marking unit 23 can be specified using two parameters: the rotation angle θ about the reference angle of the support 21 and the position of the longitudinal member 22, that is, the distance r from the support 21. It is now possible to do so.

The dynamic balance tester 10 further includes a lower marking device 2.
5 is provided. This lower marking device 25 is similar to the conventional marking device 1 (see description of the prior art), and is attached to the vibration detection section 12 side.

The reason why the marking devices are provided on the upper and lower sides is that the dynamic balance tester 10 is a device for measuring, for example, the unbalance of a wheel with a tire. This is because, in the case of a wheel with tires, it is necessary to measure the unbalance on the upper and lower surfaces, and this dynamic balance tester 10 is also designed to be able to measure the unbalance on the upper and lower surfaces. Since it is necessary to mark the results of the unbalance measurement on the two upper and lower surfaces on the wheel with tire as the workpiece, an upper marking device and a lower marking device 25 are provided.

Note that the lower marking device 25 is replaced by the conventional marking device 1.
It goes without saying that the marking device according to the present invention may be used instead of the same configuration as in the above, and in such a case, the mark at the unbalanced position can be more quickly marked by the lower marking device.

FIG. 1 is a diagram schematically showing the characteristic configuration of the above-mentioned upper marking device.

Next, the configuration and operation of the marking device will be explained with reference to FIG.

A rotation mechanism including a motor 24 is attached to the column 21, and when the motor 24 is driven, the longitudinal member 22 held by the column 21 is rotated horizontally around the column 21. There is.

The longitudinal member 22 has its rear portion rotatably held by the support column 21, and further has a motor 25 attached to its rear end. Further, the longitudinal member 22 has two parallel guide rails 26 extending in the length direction thereof and one drive shaft 2.
7 is provided. Of these, the drive shaft 27 is rotated by the motor 25. The upper portion of the upper marking unit 23 is inserted into and fitted into the two guide rails 26 and the drive shaft 27 . As the drive shaft 27 is rotated by the motor 25, the upper marking unit 23 is guided by the guide rail 26, and is guided by the arrow R.
As shown, the longitudinal member 22 can freely move back and forth in the length direction.

With the above configuration, the upper marking unit 23 can be rotated by selecting the rotation angle of the longitudinal member 22 and the amount of movement of the upper marking unit 23 along the longitudinal member 22, when viewed from the pillar 21. , can be moved to any position within the maximum movement range. In other words, the upper marking unit 23 is configured to be able to be moved to any position specified by two parameters: the rotation angle θ of the longitudinal member 22 with respect to the reference angle of the support 21 and the distance r from the support 21 in the R direction. It has become.

This is one of the features of this embodiment.

Next, a method of controlling the rotation angle θ and the distance r will be explained.

The output of the vibration detection section 12 of the dynamic balance tester 10 is given to the signal processing section 28, and the signal processing section 28 outputs the output from the vibration detection section 12.
An unbalance angle position signal and an unbalance amount signal are generated based on the output from the unbalance angular position signal and the unbalance amount signal, and are outputted to a display device or the like. Among the signals output from the signal processing section 28, the unbalance angle position signal is also given to the parameter control circuit 29.

The parameter control circuit 29 calculates the rotation direction and rotation angle of the longitudinal member 22 and the movement direction and movement amount of the upper marking unit 23, that is, two parameters θ and ``, based on the unbalance angle position signal. The motors 24 and 25 are controlled according to the results. As a result, the upper marking unit 23
is moved to the desired position.

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

The upper marking unit 23 is, for example, a marking gun (trade name) that sprays paint lumps in a thin beam shape.
It is preferable to use Of course, replace it with a marking gun,
Marking units including chalk, stamps, etc. may also be used.

Note that when actually marking an unbalanced position on a workpiece using this marking device, it is sufficient to rotate the longitudinal member 22 within a maximum rotation angle of 90 degrees.

As explained above, since the upper marking unit 23 can be moved to a desired position, it is possible to smoothly mark the unbalanced angle position on the workpiece 14 while the workpiece 14 is fixed at a fixed position. Can be done.

Therefore, the dynamic balance tester 10 incorporating this marking device has the following advantages. In the case of a workpiece 14, such as a wheel with tires, in which it is necessary to measure unbalance on two surfaces, the upper and lower surfaces, when marking the unbalance angle positions of the upper and lower surfaces, which have been determined by n1, with the upper marking device and the lower marking device 25, respectively. Since the upper marking device 23 can be operated while the work bead 14 is rotated to a predetermined angular position in alignment with the lower marking device 25, the lower mark and the upper mark can be marked at the same time. Therefore, when this dynamic balance tester 10 is installed in a factory line or the like, the time required to mark the unbalance angle position can be significantly reduced compared to the conventional one.

FIG. 4 is a diagram schematically showing another example of the configuration of the upper marking device. The configuration shown in FIG. 4 is characterized in that a substantially central portion in the longitudinal direction of the longitudinal member 22 is rotatably held.

More specifically, the upper marking device in FIG. 4 is provided with an arm 32 extending in a substantially horizontal direction from the upper end of a support column 31, and a rotation mechanism including a motor 33 is provided at the tip of the arm 32. A substantially central portion of the longitudinal member 22 in the longitudinal direction is attached to the rotation mechanism. The elongated member 22 can then be rotated in the horizontal direction about its longitudinal center. The longitudinal member 22 includes a first
Similar to the embodiment described in the figures, two parallel guide rails 26 extending in the length direction of the longitudinal member 22 and one drive shaft 27 are provided, and the drive shaft 27 is rotated by the motor 25. I'm starting to get it. The upper part of the upper marking unit 23 is inserted into and fitted into the guide rail 26 and the drive shaft 27.

When the upper marking device is constructed as shown in FIG. 4, it is preferable that the center of rotation of the elongate member 22 is opposed to the center of the workpiece. By doing so, by arbitrarily moving the upper marking unit 23 in the length direction of the longitudinal member 22 as the diameter of the work bead changes, a mark can be marked on a predetermined side peripheral surface of the work bead. Note that the longitudinal member 22
In this embodiment, it is sufficient that the rotation angle is at least 180 degrees.

In each of the above embodiments, the unbalance angle position is marked on the workpiece 14 set in the dynamic balance tester, but after the unbalance is measured in the dynamic balance tester, the unbalance angle position is marked separately. The marking device according to the present invention can also be used when an unbalanced angular position is marked at a station.

Further, in each of the above embodiments, a vertical dynamic balance tester was explained as an example, but the marking device according to the present invention
It should be noted that this method can also be applied to horizontal dynamic balance testing machines.

In each of the above embodiments, the mark marked on the workpiece is the unbalance angle position, but the unbalance amount may also be written. In other words, by changing the color of the marking paint, changing the size of the mark, or writing a numerical value representing the amount of unbalance near the mark or inside the hollow mark, the amount of unbalance can also be marked. You may also do so.

Effects of the Invention Since the present invention is configured as described above, it is possible to provide a marking device that can extremely smoothly mark an unbalanced angular position on a workpiece. In addition, the unbalance angle position can be marked while the workpiece is fixed in a fixed position, and the position of the workpiece can be controlled to mark the unbalance angle position on the main body of the dynamic balance tester. No need to put extra burden on yourself.

Furthermore, for workpieces where the unbalance angle position must be marked on the upper and lower surfaces, the unbalance angle position can be marked on the upper and lower surfaces at the same time while the workpiece is fixed. The time required for marking can be significantly reduced.

[Brief explanation of the drawing]

FIG. 1 is an illustrative diagram showing a characteristic configuration of a marking device according to an embodiment of the present invention. FIG. 2 is an illustrative diagram showing a characteristic configuration of a marking device according to another embodiment of the present invention. 3 and 4 are a front view and a right side view of a dynamic balance testing machine equipped with an embodiment of the present invention. FIG. 5 is an illustrative diagram for explaining an example of a conventional marking device. In the figure, 10... dynamic balance tester, 14... workpiece, 21... strut, 22... longitudinal member, 2
3... Upper marking unit, 24. 25... Motor, 26... Guide rail, 27... Drive shaft. Figure 2 Patent Applicant Nagahama Seisakusho Co., Ltd. Representative Patent Attorney Kosaku Inaoka Figure 6. Detailed explanation of the invention column 7 of the specification to be amended, contents of the amendment (1) Specification page 8, lines 5-6, page 6-7, page 20, page 9 "Lower marking device 25" described in line 2, line 1 of page 13, and lines 2 to 3 of the same page, respectively.
is corrected to "lower marking device 30." (2) "Upper marking device 23" described on page 13, line 4 of the specification is corrected to "upper marking unit 23." Procedural amendment 1, case description 1999 Patent Application No. 51589 2. Invention name marking device 3. Relationship with the case of the person making the amendment Patent Applicant Address 1-24-3 Miyata-cho, Takatsuki City, Osaka Prefecture Name
Representative of Nagahama Manufacturing Co., Ltd. Kosaku Nagahama 4. agent

Claims (2)

[Claims] (1) A marking device for marking on a workpiece the unbalance angle position measured by a dynamic balance tester, the marking device comprising a marking means for marking a predetermined mark on the workpiece, and a fulcrum as the center. A marking device comprising: a rotatably provided longitudinal member; and a moving means for moving the marking means along the length of the longitudinal member. (2) The marking device according to claim 1 further controls the rotation angle of the longitudinal member and the movement amount of the moving means based on an unbalance angle position signal output from a dynamic balance tester. It is characterized by including a control means.