JP2729431B2 - Dimension measuring device and method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dimensional measuring apparatus and method for measuring the width, groove interval, hole-to-groove distance, hole-to-hole distance, etc. of grooves formed on a dimensional object such as a sheet metal or a shaft. About.

[0002]

2. Description of the Related Art Conventionally, height gauges, calipers, and the like are representative of measuring devices for measuring the width, groove interval, hole-to-groove space, hole-to-hole space, etc. of grooves formed on a dimension measuring object such as a shaft. Is used regularly.

[0003]

However, in the above-mentioned conventional measuring apparatus, it is necessary to select whether to use a caliper or a height gauge according to a part to be measured, and to carry out the measurement by holding the selected measuring apparatus in a hand. Therefore, there is a problem that the measurement time becomes long, and individual differences appear in the measurement results, resulting in poor accuracy.

That is, as shown in FIG. 14, a shaft 7 having four grooves 1, 2, 3, 4 and holes 5, 6 formed therein.
, A caliper is used to measure the intervals indicated by reference symbols A and B, and a height gauge is used to measure the intervals indicated by reference symbols C and D.

When the distance between the right side surface of the groove 2 and the center of the hole 5 is measured, as shown by reference numeral E, a pin gauge 8 corresponding to the hole diameter is inserted into the hole 5 as shown in FIG. And
When the tip of the height gauge 9 is brought into contact with the upper surface of the pin gauge 8 and the left side surface of the groove 2 (the lower surface of the groove 2 in FIG. 15), the distance between the hole 5 and the hole 6 is measured. Pin gauges 8, 10 are provided in both of these holes 5, 6.
Is inserted, and the tip of the height gauge 9 is brought into contact with the upper surfaces of the pin gauges 8 and 10 for measurement. In this case, since the measurement results include the diameters of the pin gauges 8 and 10, 前 of the diameter of the pin gauges 8 is subtracted in the former case, and １ ／ of the diameters of the pin gauges 8 and 10 in the latter case. It is necessary to perform a calculation process for subtracting.

As described above, the use of a caliper or a height gauge is selected according to the part to be measured, and the measurement is carried out by holding the selected measuring device in hand. However, there is a problem that individual differences appear and accuracy is poor. Further, when measuring the hole interval, it is necessary to select a pin gauge suitable for the hole diameter, and to insert and remove the pin gauge into and out of the hole, which is troublesome and time-consuming.

SUMMARY OF THE INVENTION An object of the present invention is to provide a dimension measuring apparatus and a method capable of measuring a dimension such as a groove interval with high accuracy in a short time.

[0008]

In order to achieve the above object, the present invention is directed to a first holding means for holding a dimension measurement object, and a plurality of the dimension measurement objects held by the first holding means. A plurality of types of measuring elements each having an individual measurement reference portion that engages with the measuring portion of the first type, a second holding means for integrally holding the plurality of types of measuring elements, and the first and second holding means A first moving means that can move either one of the first and second holding means in a predetermined measuring direction; and a first moving means that can move one of the first and second holding means in a predetermined one direction orthogonal to the predetermined measuring direction. A third moving means capable of moving one of the second moving means and one of the first and second holding means in a direction orthogonal to the moving direction of each of the first and second moving means; And the plurality of types of measurement at a measurement site at a measurement start position of the dimension measurement object. Is determined based on the amount of movement of one of the first and second holding means from the position where any one of the first and second holding means is engaged to the position where any of the plurality of types of tracing styluses is engaged with the measurement site at the measurement end position. And a measuring means for determining a dimension between the measurement sites.

[0009]

After holding the dimension measurement object on the first holding means, one of the first and second holding means is moved in the dimension measurement direction, and the measurement start position of the dimension measurement object is moved to the measurement site. A tracing stylus corresponding to the shape of the measurement site is selected from the plurality of types of tracing stylus and engaged. Thereafter, one of the first and second holding means is moved in the direction of the measurement end position of the dimension measurement object, and a measuring element corresponding to the shape of the measurement site is provided at the measurement site at the measurement end position. A measurement element is selected and engaged, and a dimension between measurement parts is obtained based on a movement amount from a measurement start position of one of the first and second holding means to the measurement end position.

[0010]

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

<Construction> FIG. 1 is a perspective view showing an embodiment of the present invention. A first object holding a shaft 7 to which a dimension measuring object, for example, a roller of a copying machine or an automatic document feeder, is mounted on a pedestal 20. A plurality of holding means, for example, holding tables 21 are provided. The holding table 21 has a shape as shown in FIG. 2, and a V-shaped holding groove 23 as shown in FIG. 3 is formed in the longitudinal direction at the center in the width direction. The holding groove 23 is formed at an angle of, for example, 120 degrees, and has a diameter of, for example, φ3, φ5,
Even different shafts 7 such as φ10 can be stably supported.

As shown in FIG. 2, a stopper 40 is attached to one end of the holding table 21. One end of the shaft 7 placed in the holding groove 23 is abutted against the stopper 40, and the clamp 22 is rotated counterclockwise. By doing so, the shaft 7 is fixed to the holding groove 23 by the arm 24 of the clamp 22.

4 and 5, the stopper 40 has a concave portion 41 for escaping a cutting protrusion 7A (an unnecessary small protrusion remaining when the shaft 7 is cut) on the end face of the shaft 7, as shown in FIGS.
A step portion 42 for escaping the tracing stylus 28, 29, 30 described later;
A hole 43 for attachment is provided.
It is attached to 1.

When the shaft 7 is short, the shaft 7 cannot be fixed to the holding table 21 by the clamp 22. Therefore, a push rod 50 as shown in FIG. 6 is prepared, and as shown in FIG. The shaft 7 can be positioned by pressing one end of the shaft 7 with the stopper 50 to press the shaft 7 against the stopper 40 and fixing the push rod 50 with the clamp 22. At one end of the push rod 50, a step portion 51 formed so that the tracing stylus 28, 29, 30 can be interposed between the push rod 50 and the shaft 7, and a concave portion 41 of the stopper 40 which escapes the cutting projection 7A on the end face of the shaft 7; Similar recess 5
2 are provided.

As shown in FIG. 1, the pedestal 20 is moved along the slide guide member 26 in the X-axis direction which is a predetermined measurement direction (first moving means), and is moved along the slide guide member 27. A moving means for moving in the Y-axis direction as a predetermined direction orthogonal to the axis (second moving means), for example, XY
A table 25 is attached.

A head H is attached to the XY table 25. A third moving means, for example, a guide member 32 is attached to the head portion H via a support member 38, and a second holding means, for example, a tracing stylus is movable along the guide member 32 in the vertical direction (Z-axis direction). Holder 3
1 is provided. The tracing stylus holder 31 is urged upward by a spring 33 stretched between the tracing stylus 31 and the supporting member 38. The tracing stylus 31 is lowered by a pressing operation, and automatically returns to an initial position when the pressing operation is released. Is configured.

The first stylus 28 having a measurement reference portion 28A to be brought into contact with the left side surface of a measurement part such as a groove formed in the shaft 7 is brought into contact with the right end surface of the stylus holder 31. A second tracing stylus 29 having a measurement reference portion 29A,
A third tracing stylus 30 having a measurement reference portion 30A having a pyramidal or conical shape at the tip inserted into a hole formed in the shaft 7 is arranged in series along the Y axis, and the tip (measurement reference portion 28A , 29A, 30A) are held so as to be aligned on a plane orthogonal to the X axis.

The tracing stylus holder 31 is provided with a measurement start switch 34 of measuring means 39 for determining the amount of movement of the tracing stylus holder 31 in the X-axis direction.

The measuring means 39 includes a measurement start switch 34
Detecting means 37 arranged in parallel with the guide member 26 for detecting the amount of movement of the XY table 25 in the X-axis direction; and measuring the movement amount detected by the detecting means 37 from the measurement start position of the shaft 7 to the end of measurement. A measuring device 3 having a display section 36a for obtaining a distance to a position and displaying a measured value of a dimension between the two.
6 is provided.

The detecting means 37 may be configured such that a sliding resistor is attached to the XY table 25, and the amount of movement is measured by the amount of change in the resistance value caused by the movement of the XY table 25 in the X-axis direction.

Further, a rotary encoder having a plurality of slits is attached to the XY table 25, and the amount of movement is detected by detecting the slit of the encoder that is rotated by the movement of the XY table 25. It may be converted to

Further, a linear scale may be used.
The linear scale includes a main scale, an index scale, and a light source and a light receiving element provided between the scales. The main scale and index scale are the parts that transmit light (slits)
And a part that does not transmit light with the same width as that part is repeatedly provided at the same pitch, so that relative movement can be maintained at a constant interval, and when the main scale and the index scale move relatively, the slit The light that passes through is repeatedly switched between light and dark, and this change is converted into an electric signal to detect the moving direction and the moving amount.

Incidentally, the head portion H may have a structure as shown in FIGS. That is, the guide member 32 is attached to the table 25 via the coupling member 60, the arm 61 is attached to the guide member 32, and the arm 61
The stylus holder 31 is movably supported up and down (in the Z-axis direction) by a rod 62 and a guide member 32 attached to the probe, and the stylus holder 31 is urged upward by a spring 33 to be pressed down. It is configured to automatically return to the initial position when it is lowered by the operation and the pressing operation is released. A measurement start switch 34 is provided on the upper surface of the cover 35, and handles 63L and 63R for raising and lowering the tracing stylus holder 31 are provided on the side surface. The measuring elements 28, 29, and 30 can adjust the mounting position in the X-axis direction.

<Measurement operation> As shown in FIG. 10, the grooves 1, 2, 3, 4,
A method of measuring the groove interval and the like of the shaft 7 having the holes 5 and 6 will be described.

First, the shaft 7 to be measured is placed in the holding groove 23 of the holding table 21, one end of the shaft is abutted against the stopper 40, and the other end is firmly held by the clamp 22. When the shaft 7 is short, a push rod 50 is used as shown in FIG. In this state, measurement is performed as follows.

(1) When measuring the dimension indicated by reference symbol A in FIG. 10 The XY table 25 is moved in the X-axis direction and the Y-axis direction, and the stylus holder 31 is positioned above the groove 1 at the measurement start position. Position. Next, the tracing stylus holder 31 is pressed downward and moved downward, and the tip of the tracing stylus 29 is brought into contact with the left side surface of the groove 1. In this contact state, the measurement start switch 34
Turn on. Then, the measured value of the measuring device 36 is cleared to zero, and the measurement is started. Next, the XY table 25 is moved so that the tip of the tracing stylus 29 contacts the left side surface of the groove 2 at the position where the tracing stylus holder 31 is returned to the initial position,
The tracing stylus holder 31 is positioned above the groove 2. Next, the tracing stylus holder 31 is pressed downward and moved downward,
The tip of the tracing stylus 29 is brought into contact with the left side surface of the groove 2. During this time, since the measuring device 36 continuously measures the amount of movement of the XY table 25 in the X-axis direction, the display on the display unit 36a when the tracing stylus 29 abuts on the left side surface of the groove 2 is displayed. Looking at
The dimension indicated by the symbol A is displayed.

(2) When measuring the dimension indicated by reference numeral B in FIG. 10 The XY table 25 is moved in the X-axis direction and the Y-axis direction, and the tracing stylus holder 31 is positioned above the groove 3 at the measurement start position. Position. Next, the tracing stylus holder 31 is pressed downward and moved downward, and the tip of the tracing stylus 28 is brought into contact with the right side surface of the groove 3. In this contact state, the measurement start switch 34
Turn on. Then, the measured value of the measuring device 36 is cleared to zero, and the measurement is started. Next, the XY table 25 is moved so that the tip of the tracing stylus 28 abuts on the right side surface of the groove 4 at the position where the tracing stylus holder 31 is returned to the initial position,
The tracing stylus holder 31 is positioned above the groove 4. Next, the tracing stylus holder 31 is pressed downward and moved downward,
The tip of the tracing stylus 28 is brought into contact with the right side surface of the groove 4. During this time, the measuring device 36 continuously measures the amount of movement of the XY table 25 in the X-axis direction. Looking at
The dimension indicated by the symbol B is displayed.

(3) When measuring the dimension indicated by reference numeral C in FIG. 10 The XY table 25 is moved in the X-axis direction and the Y-axis direction, and the tracing stylus holder 31 is positioned above the groove 1 at the measurement start position. Position. Next, the tracing stylus holder 31 is pressed downward and moved downward, and the tip of the tracing stylus 28 is brought into contact with the right side surface of the groove 1. In this contact state, the measurement start switch 34
Turn on. Then, the measured value of the measuring device 36 is cleared to zero, and the measurement is started. Next, the XY table 25 is moved so that the tip of the tracing stylus 29 contacts the left side surface of the groove 2 at the position where the tracing stylus holder 31 is returned to the initial position,
The tracing stylus holder 31 is positioned above the groove 2. Next, the tracing stylus holder 31 is pressed downward and moved downward,
The tip of the tracing stylus 29 is brought into contact with the left side surface of the groove 2. During this time, since the measuring device 36 continuously measures the amount of movement of the XY table 25 in the X-axis direction, the display on the display unit 36a when the tracing stylus 29 abuts on the left side surface of the groove 2 is displayed. Looking at
The dimension indicated by the symbol C is displayed.

(4) When measuring the dimension indicated by reference character D in FIG. 10 The XY table 25 is moved in the X-axis direction and the Y-axis direction, and the stylus holder 31 is positioned above the groove 3 at the measurement start position. Position. Next, the tracing stylus holder 31 is pressed downward and moved downward, and the tip of the tracing stylus 29 is brought into contact with the left side surface of the groove 3. In this contact state, the measurement start switch 34
Turn on. Then, the measured value of the measuring device 36 is cleared to zero, and the measurement is started. Next, the XY table 25 is moved so that the tip of the tracing stylus 28 contacts the right side surface of the groove 4 at the position where the tracing stylus holder 31 is returned to the initial position,
The tracing stylus holder 31 is positioned above the groove 4. Next, the tracing stylus holder 31 is pressed downward and moved downward,
The tip of the tracing stylus 28 is brought into contact with the right side surface of the groove 4. During this time, since the measuring device 36 continuously measures the amount of movement of the XY table 25 in the X-axis direction, the display on the display section 36a when the tracing stylus 28 is in contact with the right side surface of the groove 4 is displayed. Looking at
The dimension indicated by the symbol D is displayed.

(5) When measuring the dimension indicated by reference character E in FIG. 10 The XY table 25 is moved in the X-axis direction and the Y-axis direction, and the tracing stylus holder 31 is positioned above the hole 5 at the measurement start position. Position. Next, the tracing stylus holder 31 is pressed downward and moved downward, and the tip of the tracing stylus 30 is inserted into the hole 5. At this time, since the diameter of the tracing stylus 30 is selected to be larger than the diameter of the hole 5, the distal end portion is inserted to a depth position where the diameter becomes the same as the hole diameter. Then, the center of the hole 5 and the probe 3
0 is inserted so that the centers of 0 coincide. In this inserted state, the measurement start switch 34 is turned on. Then, the measuring device 36
Is cleared to zero and the measurement is started. Next, the XY table 25 is moved so that the tip of the tracing stylus 30 is positioned above the hole 6 at the position where the tracing stylus holding table 31 is returned to the initial position. Position it upward. Next, the tracing stylus holder 31 is pressed downward and moved downward, and the tip of the tracing stylus 30 is inserted into the hole 6. During this time, the measuring device 36 continuously measures the amount of movement of the XY table 25 in the X-axis direction.
When the display 36a is inserted into the hole 6, the size indicated by the symbol E is displayed.

(6) Measurement of dimensions indicated by reference numerals F to I in FIG. 10 The dimensions indicated by reference numerals F to I can be measured by combining the use of the measuring elements 28, 29, and 30.

For example, when measuring the dimension of the code F, X
Moving the Y table 25 in the X-axis direction and the Y-axis direction,
The tracing stylus holder 31 is positioned above the groove 1, which is the measurement start position. Next, the tracing stylus holder 31 is pressed downward and moved downward, and the tip of the tracing stylus 2 is brought into contact with the right side surface of the groove 1. In this contact state, the measurement start switch 34 is turned on. Then, the measured value of the measuring device 36 is cleared to zero,
The measurement starts. Next, the XY table 25 is moved so that the tip of the tracing stylus 30 is located above the hole 5 at the position where the tracing stylus holding table 31 is returned to the initial position. Position it upward. Next, the tracing stylus holder 31 is pressed downward to move the tracing stylus 3 downward.
0 is inserted into the hole 6. During this time, the measuring device 36
Since the moving amount of the Y table 25 in the X-axis direction is continuously measured, the display unit 3 when the tracing stylus 30 is inserted into the hole 6
Looking at the display of 6a, the dimension indicated by the symbol F is displayed. The symbols G to I can be measured in the same manner by using the tracing stylus 28.29.30 properly.

As described above, the measurement reference portions 28A, 29A, 30A of the plurality of types of tracing styluses 28, 29, 30 engaged with the measurement portions formed on the shaft 7 are aligned in the X-axis direction. The stylus holder 31 was attached to the tracing stylus holder 31, and moved to the vicinity of the measurement site at the measurement start position and the measurement end position, and the tracing stylus holder 31 was moved in the Y-axis direction to conform to the shape of the measurement site. By simply selecting a contact point and inserting or inserting it into the position to be measured, the dimensions between the measurement points can be measured by the measuring means, eliminating the need for a contact point dedicated to the measurement start position and a contact point dedicated to the measurement end position, making it extremely simple. The dimensions such as the groove interval can be measured.

Further, since three types of measuring elements are prepared, various dimensions can be measured in a short time without using another measuring device. Further, the XY table 25 is moved along the guide member 26 while the shaft 7 is held on the holding table 21 to measure the amount of movement of the tracing stylus holding table 31 in the X-axis direction. No individual differences appear.

<Modifications> The present invention is not limited to the above-described embodiment, and for example, the following modifications are possible.

(1) The probe 28 to the probe holder 31
The mounting order of the 29 and 30 is not limited.
The order of the tracing styluses 29, 28 and 30 may be as shown in FIG.

(2) The tracing styluses 28, 29, and 30 are arranged so that the positions of the tips (measurement reference portions 28A, 29A, and 30A) in the X-axis direction are aligned with a plane orthogonal to the X-axis. Therefore, the probes 28, 29,
When the probe 30 is arranged, the probes 29, 30 are difficult to see because the probes 28, 29 on the near side (one end side of the array) obstruct, and are difficult to position at the measurement site. Therefore, for example, the tracing styluses 29, 28, and 3 are arranged in the order shown in FIG.
In the case where 0 is arranged, a sighting portion, for example, a concave portion 29B, 28B is provided inside the tracing stylus 29, 28, and the concave portion 2B is provided.
By making it possible to see the tracing styluses 28 and 30 or the measurement reference portions 28A and 30A through 9B and 28B, positioning is easy and measurement errors hardly occur.

(3) As shown in FIG. 12, the measuring elements 29 and 30 at the back (the other end side of the array) are made longer (closer to the XY plane), and from the near side (the one end side of the array). Measurement reference portions 28A, 29A, 30A of all measuring elements 28, 29, 30
Is easy to position even if the user can see the image.

(4) As shown in FIG. 11, the surfaces of the tracing styluses 28 and 29 on which the measurement reference portions 28A and 29A are formed are attached to each other so that the positions in the X-axis direction of the measurement reference portions 28A and 29A are aligned. They may be arranged side by side. This facilitates the alignment of the measurement reference portions 28A and 29A.

(5) In order to confirm whether or not the measurement reference portions 28A, 29A, 30A of the tracing styluses 28, 29, 30 are displaced in the X-axis direction, a detecting member such as the master 70 shown in FIG. May be used. This Master 7
0 is an engagement surface 71 that engages with the measurement reference portion 28A of the tracing stylus 28, an engagement surface 72 that engages with the measurement reference portion 29A of the tracing stylus 29, and an engagement surface that engages with the measurement reference portion 30A of the tracing stylus 30. Engaging surfaces 73, 72 are provided.
Are arranged so as to be on a straight line with the center. Therefore, the master 70 is placed on the holding table 21 at an appropriate time before the start of measurement or the like, and the tracing stylus holding table 31 is lowered so that the measurement reference portions 28A, 29A, and 30A are respectively engaged with the corresponding engaging surfaces 71, 72. Then, it is confirmed whether or not the engagement with the engagement hole 73 is accurate, and if a displacement has occurred, the position of the tracing styluses 28, 29 and 30 can be adjusted and corrected.

(6) Although the holder 21 for the shaft 7 is provided below the tracing stylus holder 31, it may be provided above. In this case, it goes without saying that the tracing stylus holder can be moved upward and the tracing stylus is attached with its tip directed upward.

(7) In the above embodiment, the sensor unit 37 is arranged in parallel with the guide member 26 to detect the amount of movement of the XY table 25 in the X-axis direction. A sensor unit may also be provided in the direction to detect a movement amount in the Y-axis direction or the Z-axis direction so that two-dimensional or three-dimensional measurement can be performed.

(8) In the above embodiment, the XY table 25 is used.
Although the movement of the tracing stylus 31 and the tracing stylus holder 31 are performed manually, they may be driven using a motor or the like.

(9) In the above embodiment, three tracing styluses 28,
Although 29 and 30 are shown, a needle-shaped probe may be attached. Further, not only three tracing styluses but also two or four or more tracing styluses may be mounted on the tracing stylus holder 31. Further, the attachment may be made detachable and replaceable.

(10) In the above embodiment, at least at the measurement start position and the measurement end position, the tracing stylus holder 31 is lowered to engage any of the tracing styluses 28, 29, and 30 with the measurement site. The measuring object may be moved to the tracing stylus 28, 29, 30 side, or any of the measuring units 28, 29, 30 may be moved to the dimension measuring object side.

(11) In the above embodiment, the measuring elements 28 and 2
9, 30 each of the measurement reference portions 28A, 29A, 30
A is attached to the tracing stylus holder 31 so as to be aligned in a straight line, but they may be displaced in the X-axis direction. For example, the measurement reference portion 28A and the measurement reference portion 29A extend in the X-axis direction.
, An interval A is provided, and an interval B is provided between the measurement reference portion 29A and the measurement reference portion 30A. In this case, the intervals A and B are stored in the control device, and a switch or the like for instructing the control device on the tracing stylus selected at the measurement start position and the tracing stylus selected at the measurement end position is provided, and designated by the measurement start position. If there is an interval A or B or A + B between the measured stylus and the stylus specified at the measurement end position, XY
Based on the amount of movement of the table 25, these intervals are corrected by adding or subtracting them.

(12) A plurality of holding stands 21 may be provided, and each holding stand 21 may be configured to be movable along the length direction of the shaft 73. By doing so, the holding table 21 is moved and the rollers are positioned between the holding tables 21 and 21 even when a roller or the like is attached to the shaft 7.
Measurement can be performed without any problem even if rollers are provided.

[0048]

According to the present invention, the first holding means for holding the dimension measurement object, and the individual holding means which engages with the plurality of measurement sites of the dimension measurement object held by the first holding means, respectively. A plurality of types of tracing stylus having a measurement reference portion, a second holding unit for integrally holding the plurality of types of tracing stylus, and one of the first and second holding units in a predetermined measuring direction. A first moving means which can move freely, and the first and second moving means
A second moving means capable of moving any one of the holding means in a predetermined direction orthogonal to the predetermined measurement direction, and any one of the first and second holding means, One of the plurality of types of tracing elements engages with a third moving unit that is movable in a direction perpendicular to the moving direction of each of the second moving units, and a measurement site at a measurement start position of the dimension measurement object. From the measured position to the position at which any of the plurality of types of tracing styluses is engaged with the measurement site at the measurement end position, based on the amount of movement of any one of the first and second holding means. Since the measurement means for obtaining the dimensions is provided, the measurement element dedicated to the measurement start position and the measurement element dedicated to the measurement end position are unnecessary, and even if the shapes of the measurement parts at the measurement start position and the measurement end position are different, Depending on the measurement site, it is possible to The gauge head can be selected, can be accurately measured in a short time dimension between no measurement site that uses multiple measurement devices.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a plan view showing a structure of a holding table and a stopper of FIG. 1;

FIG. 3 is a sectional view of the holding table of FIG. 1;

FIG. 4 is a right side view of the stopper of FIG. 1;

FIG. 5 is a left side view of the stopper of FIG. 1;

FIG. 6 is a plan view of a push rod.

FIG. 7 is an explanatory diagram of a use state of a push rod.

FIG. 8 is a left side view of another embodiment.

FIG. 9 is a front view of the head unit of the embodiment of FIG.

FIG. 10 is an explanatory diagram for explaining a dimension measuring method using the measuring device of the example.

FIG. 11 is a perspective view showing another embodiment of the tracing stylus.

FIG. 12 is a perspective view showing another embodiment of the tracing stylus.

FIG. 13 is a plan view showing the structure of the master.

FIG. 14 is an explanatory diagram of a conventional dimension measuring method.

FIG. 15 is an explanatory view of a conventional dimension measuring method for measuring a hole interval.

[Explanation of symbols]

 1, 2, 3, 4 Grooves 5, 6 holes 21 Holder 22 Clamp 25 XY table 26, 27 Guide member 28 First measuring element 29 Second measuring element 30 Third measuring element 31 Measurement element holding table 32 Guide member 33 Spring 34 Measurement start switch 36 Measuring device 37 Detecting means 39 Measuring means

Claims (6)

(57) [Claims] 1. A dimension measuring device for measuring a dimension between a plurality of measurement sites formed on a dimension measuring object, a first holding means for holding the dimension measuring object, and a first holding means for holding the dimension measuring object. A plurality of types of measuring elements each having an individual measurement reference portion that engages with the plurality of measuring sites of the dimension measurement object; a second holding unit that integrally holds the plurality of types of measuring elements ; A first moving unit that can move one of the first and second holding units in a predetermined measurement direction; and a first moving unit that makes one of the first and second holding units orthogonal to the predetermined measurement direction. A second moving means movable in a predetermined one direction, and one of the first and second holding means,
A third moving unit that is movable in a direction orthogonal to the moving direction of each of the second moving units; and any one of the plurality of types of measuring elements is engaged with a measurement site at a measurement start position of the dimension measurement object. From the measured position to the position at which any of the plurality of types of tracing styluses is engaged with the measurement site at the measurement end position, based on the amount of movement of any one of the first and second holding means. A dimension measuring device comprising: a measuring means for measuring a dimension. 2. The method according to claim 1, wherein the plurality of types of tracing styluses are arranged in series along a moving direction of the second moving means, and each of the measuring reference portions is arranged on a plane orthogonal to the predetermined measuring direction. 2. The device according to claim 1, wherein the components are arranged side by side.
Dimension measurement device as described. Wherein said plurality of types of the probe is perpendicular to the predetermined measurement direction, a first measuring element having a measurement reference portion to be engaged with the surface facing the one direction of the predetermined measurement direction, A second tracing stylus having a measurement reference portion that engages with a surface facing the other direction of the measurement direction, and a third tracing stylus whose tip engages with a hole formed in the dimension measurement object and has a conical shape. 2. The dimension measuring device according to claim 1, wherein: 4. A plurality of types of measuring elements arranged in series are provided with a sight portion for sequentially seeing from adjacent measuring elements from one end of the array to the other end. The dimension measuring device according to claim 2, wherein 5. The plurality of types of tracing styluses arranged in series, so that all the tracing styluses arranged at the other end side can be visually recognized when viewed from one end side of the arrangement. The measuring reference portion of each measuring element adjacent to the other end side from the measuring reference portion of the measuring element is arranged so as to have a sequentially different distance from a plane parallel to the moving direction of the first and second moving means. 3. The dimension measuring device according to claim 2, wherein: 6. A dimension measuring method for measuring a dimension between a plurality of measurement sites formed on a dimension measuring object, wherein the dimension measuring object is held on a first holding means, and then the first holding means or the first holding means one of the second holding means for integrally holding the dimension measured the gauge of a plurality of types of the having a metrics portion engaged with measurement site moved to a predetermined measurement direction, the dimension measured A measurement element having a measurement reference portion corresponding to the shape of the measurement area is selected from the plurality of types of measurement elements and engaged with the measurement site at the measurement start position, and then the first and second holding units are used. Any one of the above is moved in the direction of the measurement end position of the dimension measurement object, and a measurement element having a measurement reference portion corresponding to the shape of the measurement area is measured from the plurality of types of measurement elements. Selected and engaged, the first and second security Dimension measuring method characterized by determining the dimension between the measurement site from one of the measurement starting position on the basis of the movement amount of up to the measurement end position of the unit.