JP6326802B2 - measuring device - Google Patents

Description

  The present invention relates to a measuring apparatus for measuring rolling bearings and components of rolling bearings in the circumferential direction.

  Conventionally, in order to ensure the rotation accuracy of rolling bearings, rolling bearings and rolling bearings (inner rings, outer rings), rolling elements, etc. (hereinafter collectively referred to as “measurement object”) are rotated. The measurement device measures the vibration of the object to be measured and the surface properties in the circumferential direction. For measurement of an object to be measured, contact type measurement in which a stylus is applied to the object to be measured is known (for example, see Patent Document 1).

  FIG. 5 is an explanatory view showing an example of a conventional measuring apparatus 101. A spindle 102 is rotatably provided on the housing 111, and an object 112 to be measured is attached to one end of the spindle 102. A detector 103 is attached to a fixed plate 113 provided integrally with the housing 111. A stylus 104 is attached to the tip of the detector 103 so as to be movable in the vertical direction in the figure. The displacement of the stylus 104 is detected to measure the vibration of the measurement object 112 and the surface property in the circumferential direction. To do. By operating the handle 106 on the fixed plate 113, the position of the detector 103 relative to the fixed plate 113, that is, the position of the stylus 104 can be adjusted in the vertical direction according to the size of the measurement object 112. Yes.

  When the spindle 102 is rotated, the stylus 104 that is in contact with the object to be measured 112 moves in accordance with the shape of the object to be measured 112. Therefore, by detecting the displacement of the stylus 104, Vibration and circumferential surface properties can be measured.

JP 2012-194106 A

  However, in the measurement apparatus 101 of FIG. 5, it is necessary to perform measurement by bringing the stylus 104 into contact with the object to be measured 112, and the following procedure is necessary for measurement. That is, (1) In order to attach the DUT 112 to the spindle 102, the handle 106 is operated to move the detector 103 upward in the figure, and the stylus 104 is retracted. (2) Remove the object 112 to be measured and attach the object 112 to be newly measured to the spindle 102. (3) Operate the handle 106 to move the detector 103 downward, and bring the retracted stylus 104 into contact with the object 112 to be measured. (4) The object to be measured 112 is rotated and measured by rotating the spindle 102. (5) After the measurement is completed, in order to remove the measurement object 112 from the spindle 102, the handle 106 is operated to move the detector 103 upward again, and the stylus 104 is retracted. In the case of the second and subsequent measurements, (2) to (5) are repeated.

  As apparent from the above (3) and (5), even in the second and subsequent measurements, the stylus 104 is brought into contact with the DUT 112 by operating the handle 106 every time the DUT 112 is measured. Or the stylus 104 needs to be retracted. However, in many cases, a screw mechanism is used to move the detector 103, and the detector 103 is moved up and down by rotating the screw. For this reason, when a large number of the same type of objects to be measured 112 are measured, the number of operations of the handle 106 for moving the detector 103 increases, and a lot of time is spent operating the screw mechanism. There is a problem that it takes time. Further, since the position of the detector 103 is adjusted every time the object to be measured 112 is replaced, it is difficult to keep the measurement conditions constant.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a measuring apparatus that can shorten the time for measuring an object to be measured and can measure the measurement conditions under the same conditions.

The above object of the present invention can be achieved by the following constitution.
(1) a spindle rotatably supported by a housing installed on the frame ;
A detector having a stylus capable of contacting an object to be measured attached to the spindle;
The detector is supported, and is supported by the frame or the housing so as to be movable between a set position where the stylus can contact the object to be measured and a retracted position where the stylus cannot contact the object to be measured. A holder,
A first adjustment mechanism that enables position adjustment of the detector with respect to the holder;
A second adjustment mechanism that allows the holder to be adjusted between a set position and a retracted position with respect to the frame or the housing ;
Equipped with a,
The holder has a substantially L-shape having a first arm portion extending in one direction and a second arm portion extending in a direction different from the first arm portion from the distal end portion of the first arm portion. And is supported rotatably at the proximal end of the first arm part, and supports the detector at the distal end of the second arm part,
The second adjustment mechanism is rotatably supported around a predetermined rotation axis with respect to a fixed plate fixed to the frame or the housing, and a handle to which a handle for rotating the fixed plate is attached. And a cam interlocking with the handle,
When the handle is operated and the handle is rotated in one direction, the cam pushes up the holder to move the holder to the retracted position, and the handle is operated and the handle is rotated in the other direction. Sometimes the cam is retracted to move the holder to the set position .
(2) The measuring device according to (1), wherein a cushioning material is provided between the holder and the fixed plate.

According to the measurement apparatus of the present invention, in addition to the first adjustment mechanism that enables the position of the detector to be adjusted with respect to the holder, the second adjustment mechanism that enables the position of the holder to be adjusted with respect to the frame or the housing is provided. The holder has a substantially L-shaped member having a first arm portion extending in one direction and a second arm portion extending from the tip end portion of the first arm portion in a direction different from the first arm portion. The second adjustment mechanism is fixed to the frame or the housing, and is supported by the base end of the first arm so as to be rotatable, the detector is supported by the tip of the second arm. And a handle to which a handle for rotating with respect to the fixed plate is attached, and a cam interlocking with the handle. When rotated in the direction Cam moves to the retracted position holder pushes up the holder, the cam when the handle grip is operated is rotated in the other direction to move to the set position holder retreats. Thereby , after the position of the detector is adjusted once by the first adjusting mechanism, the object to be measured can be continuously moved only by the holder being operated between the set position and the retracted position by the second adjusting mechanism. Measurement can be performed, and the measurement time can be shortened. Further, since the second adjustment mechanism only adjusts the holder between the set position and the retracted position, it is possible to measure under the same measurement conditions.
In addition, according to the measuring apparatus of the present invention, since the cushioning material is provided between the holder and the fixed plate, the impact when the holder comes into contact with the fixed plate can be reduced.

The front view of the measuring device concerning a 1st embodiment, Side view of FIG. Explanatory drawing of the state where the holder is in the retracted position, The figure similar to FIG. 2 of the measuring apparatus which concerns on 2nd Embodiment, It is explanatory drawing of the conventional measuring apparatus.

  Hereinafter, a measuring apparatus according to an embodiment of the present invention will be described with reference to the drawings.

(First embodiment)
1 and 2 are a front view and a side view of the measuring apparatus 1 showing a state in which the object to be measured 12 is set, and FIG. 3 is an explanatory view of the state in which the holder 5 is in the retracted position. The measuring apparatus 1 is configured such that a spindle 2 supported by a frame 10, a detector 3 provided with a stylus 4, a holder 5 that supports the detector 3, and the position of the detector 3 can be adjusted with respect to the holder 5. A first adjustment mechanism, and a second adjustment mechanism that allows the holder 5 to be adjusted in position relative to the frame 10. (Note that the following description will proceed with reference to FIG. 2, but the frame 10 is omitted in FIG. 2 and subsequent figures.)

  The spindle 2 is rotatably supported by a housing 11 installed on the frame 10. An object to be measured 12 is attached to the tip of the spindle 2 (the end on the left side in the figure).

  The detector 3 includes a stylus 4 that is positioned above the object to be measured 12 and that directly contacts the object to be measured 12 and measures surface irregularities and vibrations. The detector 3 detects the displacement of the stylus 4 in the vertical direction in the figure, and transmits an electrical signal corresponding to the displacement of the stylus 4 to an information processing device (not shown). As a detector, instead of a displacement type that detects displacement of the stylus, a speed type that detects the movement speed of the stylus or an acceleration type that detects movement acceleration may be used.

  The holder 5 is a substantially L-shaped member having a horizontal portion 5a and a vertical portion 5b, and is rotatably supported by the support portion 11a of the housing 11 at the right end of the horizontal portion 5a in FIG. The above-described detector 3 is attached to the vertical portion 5b so that the position of the detector 3 can be adjusted in the vertical direction with respect to the vertical portion 5b.

  The position of the detector 3 can be adjusted in the vertical direction in the figure by a first handle 6 as a first adjusting mechanism and a screw mechanism (not shown) that operates in conjunction with the operation of the first handle 6. Therefore, when the object to be measured 12 is measured for the first time, the position of the stylus 4 is set so that the measurement conditions suitable for the object to be measured 12 are obtained by operating the first handle 6.

  The second handle 7 is supported by a fixed plate 13 fixed to the housing 11 so as to be rotatable about a shaft 13a. The second handle 7 is interlocked with the cam 8 (see FIG. 3). When the handle 7a is operated to rotate the second handle 7 in the clockwise direction indicated by the arrow R1, the cam 8 pushes up the holder 5, and the holder 5 is brought to the retracted position shown in FIG. When the holder 5 is in the retracted position, the stylus 4 is in a state where it cannot contact the object to be measured. When the second handle 7 is rotated in the direction R2 from the state shown in FIG. 3, the cam 8 is retracted, so that the holder 5 is brought to the set position shown in FIG. When the holder 5 is in the set position, the stylus 4 is in contact with the object to be measured 12. A second adjustment mechanism is configured by the second handle 7 and the cam 8.

  In addition, although illustration is abbreviate | omitted in FIG. 3, the lock mechanism for hold | maintaining the holder 5 in the position of FIG. 3 may be provided. Further, the second handle may be supported by the holder, and the holder may be pushed up with respect to the fixed plate when operated.

  Subsequently, measurement of the DUT 12 using the measuring apparatus 1 will be described.

  When the measurement is completed, the device under test 12 is in the state shown in FIG. From this state, in order to attach a new object 12 to be measured, the second handle 7 is operated and rotated in the clockwise direction indicated by the arrow R1, and the holder 5 supporting the detector 3 is moved to the retracted position in FIG. Move.

  In the retracted position shown in FIG. 3, the stylus 4 cannot contact the object to be measured 12, so that the object to be measured 12 can be freely attached and detached without interfering with the stylus 4. In this state, the measured object 12 to be measured is removed from the spindle 2, and a new object to be measured 12 is attached to the spindle 2.

  Next, the second handle 7 is rotated counterclockwise, which is the direction of the arrow R2, and the cam 8 is retracted. As a result, the holder 5 supporting the detector 3 is shifted to the state shown in FIG. 2 in which the stylus 4 is in a set position where the stylus 4 can contact the object 12 to be measured. At this time, when the same type of object to be measured 12 is continuously measured, the position of the stylus 4 is brought to the same position as the previous measurement, so that it is not necessary to further operate the first handle 6.

  Therefore, when the same type of DUT 12 is continuously measured, the adjustment of the raising / lowering of the stylus 4 by operating the first handle 6 for each measurement is eliminated, and the measurement time can be shortened. Further, since there is no adjustment of the raising / lowering of the stylus 4 as described above, measurement under the same conditions becomes possible.

  In addition, when the size of the object 12 to be measured is different, or when the type of the measurement object changes and a new measurement condition needs to be set, such as when the measurement object changes from a bearing to a race, 1 It is necessary to adjust the handle 6 to a position where the stylus 4 contacts the object to be measured 12 by operating the handle 6. However, the operation of the first handle 6 is necessary only when the type of the object to be measured 12 is changed and measurement is performed first as described above.

  Next, at the set position of FIG. 2, the spindle 2 is rotated to measure the vibration of the object to be measured 12 and the unevenness of the surface in the circumferential direction. The stylus 4 detects vibration of the object 12 to be measured and circumferential unevenness of the surface, and transmits an electrical signal corresponding to the displacement of the stylus 4 to an information processing device (not shown). The transmitted signal is compared with a determination criterion stored in advance in the information processing apparatus, so that vibration of the object to be measured is evaluated.

  As described above, according to the measuring apparatus 1 of the present embodiment, when measuring the same type of object 12 to be measured, after the position of the detector 3 is once adjusted by the first handle 6, the second handle 7, the workpiece 5 can be measured continuously only by operating the holder 5 between the set position and the retracted position, and the measurement time can be shortened. In addition, once the position is adjusted, measurement under the same conditions is possible because there is no adjustment of the detector 3, that is, the stylus 4.

(Second Embodiment)
Next, a measuring apparatus 21 according to the second embodiment of the present invention will be described with reference to FIG. Since the measurement apparatus 21 of the present embodiment has the same basic configuration as that of the measurement apparatus 1 of the first embodiment, the same parts are denoted by the same reference numerals and the description thereof is omitted.

  FIG. 4 is a view similar to FIG. 2 showing a state where the holder 5 is in the retracted position. The present embodiment is different from the first embodiment in the configuration in which a cushioning material is provided between the holder 5 and the fixed plate 13.

  As shown in FIG. 4, a coil spring 22 as a cushioning material is provided between the holder 5 and the fixed plate 13. Further, the holder 5 brought to the set position is held at that position by a lock device (not shown). With this configuration, the impact when the holder 5 comes into contact with the fixed plate 13 can be reduced. In place of the coil spring, an air damper or a shock absorber that functions as a buffer material may be used.

  As a modification of the present embodiment, when the spring force of the coil spring is strengthened and the lock device (not shown) is removed, the holder may be brought to the retracted position by the spring force. By adopting such a configuration, it is possible to omit the second handle provided rotatably on the fixed plate and the cam provided integrally with the second handle.

  Also in this embodiment, when measuring the same type of object 12 to be measured, after the position of the detector 3 is once adjusted by the first handle 6, the holder 5 is moved to the set position and the retracted position by the second handle 7. It is possible to continuously measure the object 12 to be measured, and shorten the measurement time. In addition, once the position is adjusted, measurement under the same conditions is possible because there is no adjustment of the detector 3, that is, the stylus 4.

In addition, this invention is not limited to each embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. For example, the spindle may be mounted directly on the frame without a housing. Further, the holder may not be supported by the housing fixed to the frame but directly supported by the frame.

1, 21 Measuring device 2 Spindle 4 Touch needle 5 Holder 6 First handle 7 Second handle 10 Frame 12 Object to be measured

Claims (2)

A spindle rotatably supported by a housing installed on the frame ;
A detector having a stylus capable of contacting an object to be measured attached to the spindle;
The detector is supported, and is supported by the frame or the housing so as to be movable between a set position where the stylus can contact the object to be measured and a retracted position where the stylus cannot contact the object to be measured. A holder,
A first adjustment mechanism that enables position adjustment of the detector with respect to the holder;
A second adjustment mechanism that allows the holder to be adjusted between a set position and a retracted position with respect to the frame or the housing ;
Equipped with a,
The holder has a substantially L-shape having a first arm portion extending in one direction and a second arm portion extending in a direction different from the first arm portion from the distal end portion of the first arm portion. And is supported rotatably at the proximal end of the first arm part, and supports the detector at the distal end of the second arm part,
The second adjustment mechanism is rotatably supported around a predetermined rotation axis with respect to a fixed plate fixed to the frame or the housing, and a handle to which a handle for rotating the fixed plate is attached. And a cam interlocking with the handle,
When the handle is operated and the handle is rotated in one direction, the cam pushes up the holder to move the holder to the retracted position, and the handle is operated and the handle is rotated in the other direction. Sometimes the cam is retracted to move the holder to the set position . The measuring apparatus according to claim 1, wherein a buffer material is provided between the holder and the fixed plate.

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