WO2013108875A1 - 穴形状測定装置及び穴形状測定方法 - Google Patents
穴形状測定装置及び穴形状測定方法 Download PDFInfo
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- WO2013108875A1 WO2013108875A1 PCT/JP2013/050932 JP2013050932W WO2013108875A1 WO 2013108875 A1 WO2013108875 A1 WO 2013108875A1 JP 2013050932 W JP2013050932 W JP 2013050932W WO 2013108875 A1 WO2013108875 A1 WO 2013108875A1
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- measuring
- hole
- diameter
- dish
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
- G01B5/12—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters internal diameters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/18—Measuring arrangements characterised by the use of mechanical techniques for measuring depth
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B2210/00—Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors
Definitions
- the present invention relates to a hole shape measuring apparatus and a hole shape measuring method.
- FIG. 1 is a cross-sectional view showing an example of a countersunk bolt hole 6.
- a countersunk bolt hole 6 provided in the target member 3 is shown.
- the target member 3 has a first member 1 and a second member 2, and the first member 1 and the second member 2 are laminated.
- the first member 1 is a composite material.
- the second member 2 is a composite material or a metal material (such as Ti and Al).
- the countersunk bolt hole 6 extends from the main surface 4 of the target member toward the back surface 5 of the target member 3, and has a countersunk part 7 and a constant part 8.
- the dish portion 7 is connected to an opening provided in the main surface 4 and is configured such that the diameter decreases as the depth increases.
- the fixed portion 8 connects the bottom portion of the plate portion 7 and the opening provided in the back surface 4.
- the diameter of the constant portion 8 is constant in the depth direction.
- the first member 1 and the second member 2 are fastened by inserting a flat bolt (not shown) into the flat bolt hole 6.
- the countersunk bolt hole 6 is formed by a drill or the like. In order to fasten the members appropriately, it is important that the formed countersunk bolt hole 6 has a desired shape accuracy. Therefore, after the countersunk bolt hole 6 is formed, the shape of the countersunk bolt hole 6 is measured. Specifically, the countersunk depth of the countersunk bolt hole 6 and the hole diameter are measured.
- the dish depth is the depth h of the part in the dish part 7 where the diameter becomes a predetermined reference diameter
- the hole diameter is the diameter in the fixed part 8.
- FIG. 2A is a cross-sectional view showing a method for measuring the dish depth.
- a step gauge 9 is used when measuring the dish depth.
- the step gauge 9 is provided with a rod, and the depth of the pan is measured by inserting the tip portion of the rod into the counterbore bolt hole 6 to be measured.
- FIG. 2B is sectional drawing which shows the measuring method of a hole diameter.
- a plunger gauge 10 is used when measuring the hole diameter.
- the tip of the rod provided on the plunger gauge 10 is inserted into the countersunk bolt hole 6 to reduce the hole diameter. Measured.
- Patent Document 1 Japanese Patent Laid-Open No. 4-138301 discloses a cylindrical hole shape measuring machine. This cylindrical hole shape measuring machine uses a pair of contacts and a pair of differential transformers that convert displacement amounts of the respective contacts into electrical signals.
- countersunk bolts are used for aircraft wing members and the like.
- a member including a composite material has been used instead of a metal member.
- a larger number of countersunk bolts are used to fasten a plurality of members than when a metal member is used. That is, the target member is provided with a large number of countersunk bolt holes 6. Since many countersunk bolt holes 6 are provided, it is required to measure the shape of countersunk bolt hole 6 in a short time. However, in the method shown in FIGS.
- Patent Document 1 discloses a cylindrical hole shape measuring machine, but there is no description about a method for measuring the shape of a countersunk bolt hole.
- the hole shape measuring apparatus is a hole shape measuring apparatus that measures the shape of a countersunk bolt hole provided in a target member including a composite material.
- the countersunk bolt hole is connected to an opening provided on the main surface of the target member, and has a shape that has a shape such that the diameter decreases as the depth from the main surface increases, and the countersunk portion at one end A fixed portion having a constant diameter and connected to an opening provided on the back surface of the target member at the other end.
- the hole shape measuring device measures the diameter of the constant part, and measures the diameter of the hole diameter, and measures the depth at which the diameter of the dish part becomes a predetermined reference diameter as the dish depth, dish depth measurement. And a mechanism.
- the hole diameter measuring mechanism is inserted into the fixed portion at a tip portion, and is configured to be displaced according to the diameter of the fixed portion, and measures a displacement amount of the hole diameter measuring rod. And a hole diameter measuring sensor.
- the dish depth measuring mechanism is inserted into the dish part at a tip portion, and is configured to be displaced according to the dish depth, and the amount of displacement of the dish depth measuring rod is determined.
- the hole diameter measuring rod and the dish depth measuring rod are provided so as to be coaxial.
- the hole shape measuring method is a hole shape measuring method for measuring the shape of a countersunk bolt hole provided in a target member including a composite material.
- the countersunk bolt hole is connected to an opening provided in the main surface of the target member, and has a shape that has a shape such that the diameter decreases as the depth from the main surface increases, and the countersunk portion at one end A fixed portion having a constant diameter and connected to an opening provided on the back surface of the target member at the other end.
- the hole shape measuring method includes a step of measuring a diameter of the fixed portion by inserting a tip of a hole diameter measuring rod into the fixed portion, and a pan depth provided to be coaxial with the hole diameter measuring rod. Measuring the dish depth of the dish part by inserting the tip of the measuring rod into the dish part.
- a hole shape measuring apparatus and a hole shape measuring method capable of measuring the shape of a countersunk bolt hole in a short time.
- FIG. 3 is a cross-sectional view showing the hole shape measuring apparatus according to the present embodiment.
- the hole shape measuring device is used to measure the shape of the countersunk bolt hole 6 provided in the target member 3.
- the target member 3 includes a first member 1 and a second member 2.
- the first member 1 is a composite material
- the second member 2 is a composite material or a metal material (Ti or Al).
- the countersunk bolt hole 6 has a countersunk part 7 and a fixed part 8 as in the example shown in FIG.
- the target member 3 includes a composite material and is a main wing member of an aircraft.
- the hole shape measuring apparatus includes a main body 11, a measuring mechanism 12, a balance air cylinder 13, and a pressure foot 19.
- the main body 11 is a part that holds the measurement mechanism 12 and the pressure foot 19.
- the main body 11 includes a Z-axis slide unit 16, a Z-axis servo motor 15, a Z-axis position detection sensor 17, and an arm 18.
- the arm 18 is a part that holds the measurement mechanism 12 and is held by the Z-axis slide unit 16 so as to be movable along the Z-axis direction (first direction).
- the Z-axis servomotor 15 is a motor that moves the arm 18 along the first direction.
- the Z-axis position detection sensor 17 has a function of detecting the position of the arm 18 on the Z-axis.
- the main body 11 is arranged on the target member 3 so that the first direction is a direction perpendicular to the main surface 4.
- the pressure foot 19 is provided to flatten the main surface 4 of the target member 3.
- the pressure foot 19 is supported by the main body 11 and is configured to press the main surface 4.
- the main surface 4 of the target member 3 may be curved. When the main surface 4 is curved, it may be difficult to accurately measure the hole shape. On the other hand, in this embodiment, since the main surface 4 is pressed down by the pressure foot 19, the main surface 4 becomes flat and it becomes possible to measure a hole shape correctly.
- the pressure foot 19 is provided with an opening 20. The pressure foot 19 presses the main surface 4 so that the countersunk bolt hole 6 is exposed through the opening 20.
- the balance air cylinder 13 is provided to adjust the position of the measurement mechanism 12 in the first direction.
- a balance adjustment pressure reducing valve 14 is attached to the balance air cylinder 13, and the balance air pressure reducing valve 14 controls the balance air cylinder 13 and adjusts the position of the measurement mechanism 12. Deflection may occur between the measurement mechanism 12 and the main body 11 due to the weight of the measurement mechanism 12.
- the main wing member is usually provided with countersunk bolt holes 6 on the upper surface and the lower surface, respectively. Therefore, the hole shape measuring device may be disposed on each of the upper surface and the lower surface of the main wing member. When the hole shape measuring device is arranged on the upper surface of the main wing member, the measurement mechanism 12 may be bent so as to approach the main wing member (target member 3 side).
- the measurement mechanism 12 may be bent so as to be separated from the main wing member (target member 3).
- the balance air cylinder 13 it is possible to cancel the deflection and to adjust the position of the measurement mechanism 12 in the first direction to a desired position.
- FIG. 4A is a cross-sectional view showing the measurement mechanism 12.
- the measurement mechanism 12 includes a measurement head 21 and a measurement head holding mechanism 22.
- the measuring head 21 is held so as to be detachable from the measuring head holding mechanism 22.
- Various types of countersunk bolt holes 6 are provided in the target member 3. Therefore, a plurality of types of measuring heads 21 are used according to the shape of the countersunk bolt hole 6 to be measured.
- the measurement head 21 corresponding to the shape of the countersunk bolt hole 6 to be measured is selected and attached to the measurement head holding mechanism 22.
- the measurement head 21 is provided with a measurement head main body 34, a pan depth measurement rod 31, and a hole diameter measurement rod 32.
- the measuring head body 34 is cylindrical.
- the dish depth measuring rod 31 and the hole diameter measuring rod 32 are arranged inside the measuring head main body 34 and supported by the measuring head main body 34.
- the measurement head main body 34 is provided with an air flow path 33 and a measurement reference surface 35.
- the measurement reference surface 35 is provided at the tip of the measurement head main body 34.
- An opening 36 is provided in the measurement reference surface 35, and the air flow path 33 is connected to the opening 36.
- the measurement head holding mechanism 22 includes a measurement head chuck confirmation sensor 29, a measurement head detachable air cylinder 28, a measurement head rotation gear 25, a measurement head turning actuator 26, an air blow hose 27, an air flow path 30, and a hole diameter measurement sensor. 23 and a dish depth measuring sensor 24 are attached.
- the measurement head chuck confirmation sensor 29 has a function of detecting that the measurement head 21 is attached.
- the measuring head attaching / detaching air cylinder 28 has a function of controlling attachment / detachment of the measuring head 21.
- the measurement head rotation gear 25 is controlled by the measurement head turning actuator 26 and has a function of rotating the measurement head 21.
- the air blow hose 27 is configured to introduce air, and the tip of the air blow hose 27 is connected to the air flow path 30.
- the air flow path 30 is provided so as to be connected to an air flow path 33 provided in the measurement head 21 when the measurement head 21 is attached.
- the hole diameter measuring sensor 23 includes a rod-shaped rod portion, and has a function of measuring the displacement of the rod portion. Similar to the hole diameter measuring sensor 23, the dish depth measuring sensor 24 includes a rod-shaped rod portion and has a function of measuring the displacement of the rod portion.
- FIG. 4B is a cross-sectional view showing a state in which the measurement head 21 is attached to the measurement head holding mechanism 22.
- the hole diameter measuring sensor 23 is arranged so that the rod portion is in contact with the hole diameter measuring rod 32.
- the dish depth measurement sensor 24 is also arranged so that the rod portion contacts the dish depth measurement rod 31.
- the hole diameter measuring sensor 23 and the hole diameter measuring rod 32 realize a hole diameter measuring mechanism that continuously measures the hole diameter.
- the dish depth measuring mechanism 24 is realized by the dish depth measuring sensor 24 and the dish depth measuring rod 31.
- FIG. 5 is a cross-sectional view showing the measuring head 21 and a cross-sectional view showing a hole diameter measuring mechanism.
- a holding member 49 having an opening is fixed in the measurement head main body 34.
- the hole diameter measuring rod 32 is disposed so as to pass through the opening of the holding member 49, and is supported by the holding member 49.
- the hole diameter measuring rod 32 has an outer cylinder 37 and a rod 38 disposed in the outer cylinder 37.
- the outer cylinder 37 is fixed to and supported by a holding member 49.
- the rod 38 is disposed so as to be movable in the outer cylinder 37.
- FIG. 6 is a cross-sectional view showing the hole diameter measuring gauge 39.
- FIG. 6 shows a hole diameter measuring gauge 39 inserted into the countersunk bolt hole 6.
- the diameter of the outer cylinder 37 is set to be a size corresponding to the size of the countersunk bolt hole 6 to be measured.
- a pair of leaf springs 40 and a pair of measurement terminals 41 are provided in the outer cylinder 37.
- the pair of leaf springs 40 are provided with tapered cones 42 that extend so as to face each other.
- the pair of measurement terminals 41 extends from the leaf spring 40 in a direction perpendicular to the axial direction of the hole diameter measuring rod 32 so as to protrude from a pair of openings provided in the outer cylinder 37.
- the pair of measurement terminals 41 are arranged so as to be positioned on the same straight line.
- the tip portion of the rod 38 has a shape such that the diameter gradually decreases.
- a tapered cone 42 is in contact with the tip portion of the rod 38.
- the tip end portion (hole diameter measuring gauge 39) of the hole diameter measuring rod 32 is inserted into the counterbore hole 6, the pair of measuring terminals 41 are pushed inward according to the hole diameter. .
- the rod 38 is pushed by the pair of tapered cones 42, and the rod 38 is displaced along the first direction from the reference position (position before insertion).
- the hole diameter is large, the amount by which the pair of measurement terminals 41 are pushed is small, and the displacement amount of the rod 38 is also small.
- the hole diameter is small, the amount by which the pair of measurement terminals 41 is pushed in increases, and the displacement amount of the rod 38 also increases.
- the displacement amount of the rod 38 is measured by the hole diameter measuring sensor 23, and the hole diameter of the countersunk bolt hole 6 is obtained based on the displacement amount of the rod 38.
- FIG. 7 is a cross-sectional view showing the measuring head 21 and shows the configuration of the dish depth measuring rod 31.
- Fig.7 (a) shows the free state
- FIG.7 (b) has shown the state at the time of dish depth measurement.
- the dish depth measuring rod 31 has a cylindrical shape and is supported by the holding member 49 via a spring 44 (elastic body).
- the tip of the dish depth measuring rod 31 protrudes from the measuring head main body 34.
- a dish depth measuring element 43 is provided at the tip of the dish depth measuring rod 31.
- the diameter of the dish depth gauge 43 is a reference diameter.
- a countersink depth gauge 43 is inserted into the countersunk bolt hole 6. Since the dish depth measuring element 43 has a reference diameter, the diameter in the dish part 7 abuts on a part where the diameter becomes the reference diameter. Thereafter, the measurement head main body 34 is moved to the main surface 4 side until the measurement reference surface 35 comes into contact with the main surface 4. At this time, the dish depth measurement rod 31 is displaced along the first direction relative to the measurement head body 34 because it is supported by the measurement head body 34 via the spring 44. This amount of displacement corresponds to the distance between the measurement reference surface 35 and the dish depth gauge 43, that is, the dish depth. Therefore, the dish depth can be measured by measuring the displacement amount of the dish depth measuring rod 31 by the dish depth measuring sensor 24.
- FIG. 8 is a flowchart showing a hole shape measuring method.
- Step S1 Pressurization of pressure foot First, as shown in FIG. 3, the pressure foot 19 is disposed on the main surface 4. Next, the pressure foot 19 is pressurized, and the pressure foot 19 is pressed against the main surface 4. Thereby, even if the main surface 4 is curved, the relative position between the original position of the measurement mechanism and the main surface 4 can be stabilized.
- Step S2 Drilling Next, the target member 3 is processed through the opening 20 using a drill (not shown), and the countersunk bolt hole 6 is formed. Thereafter, the drill unit axis and the measurement axis are shifted so that the measurement axis is positioned on the center of the pressure foot 19.
- FIG. 9 is a cross-sectional view showing a state where the measurement head 21 is inserted into the opening 20. As shown in FIG. 9, the measurement mechanism 12 is moved by the Z-axis servomotor 15 so that the tip of the measurement head 21 is inserted into the opening 20.
- FIGS. 10B and 10C are cross-sectional views showing a hole shape measuring method.
- the measuring head main body 34 is disposed directly above the countersunk bolt hole 6, and a hole diameter measuring gauge 39 is inserted into the countersunk bolt hole 6 as shown in FIG. 10B.
- the hole diameter measurement gauge 39 is moved so that the pair of measurement terminals 41 protrudes the fixed portion 8 from the main surface 4 side to the back surface 5 side.
- the hole diameter of the fixed portion 8 is continuously measured by the hole diameter measuring sensor 23 (see FIG. 5).
- the value obtained by the measurement is associated with the position in the first direction measured by the Z-axis position detection sensor 17, and is notified to a control device (computer) (not shown). Thereby, the diameter of the fixed portion 8 in the second direction is obtained for each depth.
- Step S4 Dish Depth Measurement Subsequently, as shown in FIG. 10D, the measuring head main body 34 is moved to the target member 3 side so that the dish depth gauge 43 contacts the dish part 7. Further, the measurement head main body 34 is moved to the target member 3 side so that the measurement reference surface 35 contacts the main surface 4, and the dish depth is measured by the dish depth measurement sensor 24 (see FIG. 7). . Further, when the measurement reference surface 35 comes into contact with the main surface 4, air is injected from the opening 36 (see FIG. 4A). As a result, even if foreign matter or the like is present on the main surface 4, the foreign matter or the like can be removed, and the measurement reference surface 35 can be reliably brought into contact with the main surface 4.
- Step S5 Retraction Subsequently, as shown in FIG. 10E, the measurement head main body 34 is retracted so that the dish depth gauge 43 is separated from the dish part 7. For example, the measurement head main body 34 is retracted by about 1 mm.
- Step S6 Rotation Subsequently, as shown in FIG. 10F, the measurement head main body 34 is rotated by 90 ° by the measurement head turning actuator 26 (see FIG. 4A).
- Step S7 Measuring Head Retraction and Hole Diameter Measurement
- the measuring head main body 34 is retracted by the Z-axis servomotor 15 (see FIG. 3).
- the hole diameter measurement sensor 23 continuously measures the hole diameter in the third direction orthogonal to the second direction.
- the hole diameter as a measurement result is associated with the position in the first direction measured by the Z-axis position detection sensor 17 (see FIG. 3), and is notified to a control device (not shown).
- Step S8 Rotation Subsequently, as shown in FIG. 10I, the measurement head main body 34 is rotated by the measurement head turning actuator 26 (see FIG. 4A) and returned to the original position.
- Step S9 Whether the measured value is within the allowable range
- the countersunk depth of the countersunk bolt hole 6 is measured by the above processing. At each depth, the hole diameter in the second direction and the hole diameter in the third direction are measured.
- a control device (not shown) determines whether or not the obtained measurement value is within a predetermined allowable range.
- Step S10 Pressure foot pressure release In step S9, if the measured value is within the allowable range, the pressure foot pressure is released and the process ends.
- Step S11 Measurement device cause investigation and treatment
- the device is stopped and cause investigation and treatment are performed.
- the dish depth measuring rod 31 and the hole diameter measuring rod 32 are provided so as to be coaxial, the dish depth is measured immediately after the hole diameter measurement. Can be performed. That is, the shape of the countersunk bolt hole 6 can be measured in a short time.
- the balance air cylinder 13 (see FIG. 3) is provided, the measurement mechanism 12 and the main body 11 are bent due to the weight of the measurement mechanism 12. However, the deflection can be offset. Thereby, the shape of the countersunk hole 6 can be measured accurately.
- an air blow mechanism (see FIG. 4A, the air blow hose 27, the air flow path 30, and the air flow path 33) is provided, and the opening 36 provided in the measurement reference plane 35 is provided. Air is jetted from. Foreign matter may exist around the countersunk bolt hole 6 due to chips or the like during processing. Such foreign matter is blown off by the air jetted from the opening 36, and foreign matter is prevented from being caught between the measurement reference surface 35 and the main surface 4. Thereby, it becomes possible to make the measurement reference surface 35 contact
- a plurality of measurement heads 21 are prepared, and the measurement head 21 is selected according to the countersunk bolt hole 6 to be measured, and is detachably attached to the measurement head holding mechanism 22. Therefore, even when a plurality of types of countersunk bolt holes 6 are present, the shape can be measured in a short time.
- the hole diameter in the second direction is measured when the measuring head body 34 moves forward.
- the pan depth is measured after the measuring head body 34 has advanced.
- the measuring head body 34 is rotated. Thereafter, simultaneously with the measurement of the hole diameter, the measuring head body 34 is retracted, and the hole diameter in the third direction is measured. Therefore, by reciprocating the measurement head body 34 only once, the hole diameter in the second direction for each depth, the hole diameter in the third direction for each depth, and the dish depth can be measured.
- FIG. 11 is a cross-sectional view showing the master gauge 45
- FIG. 12 is a top view of the master gauge 45.
- the master gauge 45 is provided with a reference hole 46 and a mounting hole 50.
- the reference hole 46 has a known dish depth a and a known hole diameter b.
- FIG. 13 is a cross-sectional view showing a modification of the dish depth gauge 43 in the present embodiment.
- the dish depth gauge 43 has a reference diameter portion 48 having a reference diameter and a taper portion 47.
- the tapered portion 47 is a portion that is provided at the tip of the reference diameter portion 48 and has a diameter that decreases toward the tip.
- the taper portion 47 is configured such that the angle ⁇ formed between the taper portion 47 and the main surface 4 is smaller than the angle ⁇ formed between the wall surface of the plate portion 7 and the main surface 4 when viewed in cross section. .
- the dish depth measuring element 43 when measuring the dish depth, the dish depth measuring element 43 is surely brought into contact with the wall surface of the dish part 7 at the connecting portion between the reference diameter part 48 and the tapered part 47.
- the inclination of the taper part 47 is configured to be the same as the inclination of the wall surface of the dish part 7, the position of the part contacting the wall surface of the dish part 7 in the dish depth measuring element 43 is not stable, The dish depth may not be measured accurately.
- the dish depth gauge 43 reliably contacts the wall surface of the dish part 7 at the connecting portion between the reference diameter part 48 and the taper part 47, so that the dish depth is accurately determined. Can be measured.
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Abstract
Description
けられている。穴径測定センサ23は、棒状のロッド部分を備えており、そのロッド部分の変位を測定する機能を有している。皿深さ測定センサ24も、穴径測定センサ23と同様に、棒状のロッド部分を備えており、そのロッド部分の変位を測定する機能を有している。
まず、図3に示したように、プレッシャフット19が主面4上に配置される。次いで、プレッシャフット19が加圧され、プレッシャフット19が主面4に押し付けられる。これにより、主面4が湾曲している場合であっても、計測機構の原位置と主面4の相対位置を安定化させることができる。
次いで、図示しないドリルを用いて、開口20を介して、対象部材3が加工され、皿ボルト用穴6が形成される。その後、プレッシャフット19の中心上に計測軸が位置するように、ドリルユニット軸及び計測軸がシフトさせられる。
次いで、測定ヘッド21が、開口20に挿入される。図9は、測定ヘッド21が開口20に挿入された場合の様子を示す断面図である。図9に示されるように、開口20に測定ヘッド21の先端部分が挿入されように、Z軸サーボモータ15により、測定機構12が移動させられる。
続いて、図10Dに示されるように、皿深さ測定子43が皿部7に当接するように、測定ヘッド本体34が対象部材3側に移動させられる。更に、測定基準面35が主面4に当接するように、測定ヘッド本体34が対象部材3側に移動させられ、皿深さ測定センサ24(図7参照)により、皿深さが測定される。また、測定基準面35が主面4に当接する際には、開口36(図4A参照)から、空気が噴射される。これにより、主面4上に異物等が存在している場合であっても、異物等を除去することができ、測定基準面35を確実に主面4に当接させることができる。
続いて、図10Eに示されるように、皿深さ測定子43が皿部7から離れるように、測定ヘッド本体34が後退させられる。例えば、測定ヘッド本体34は、1mmほど後退させられる。
続いて、図10Fに示されるように、測定ヘッド本体34が、測定ヘッド旋回アクチュエータ26(図4A参照)により、90°回転させられる。
続いて、図10G、Hに示されるように、Z軸サーボモータ15(図3参照)により、測定ヘッド本体34が後退させられる。後退時には、穴径測定センサ23(図5参照)により、第2方向に直交する第3方向における穴径が連続的に計測される。測定結果である穴径は、Z軸位置検出センサ17(図3参照)により測定された第1方向における位置と対応付けられて、図示しない制御装置に通知される。
続いて、図10Iに示されるように、測定ヘッド本体34が、測定ヘッド旋回アクチュエータ26(図4A参照)により、回転させられ、原点位置に戻される。
以上の処理によって、皿ボルト用穴6の皿深さが測定される。また、各深さにおいて、第2方向における穴径、及び第3方向にける穴径が測定される。制御装置(図示せず)により、求められた測定値が、予め定められた許容範囲であるか否かが判別される。
ステップS9において、測定値が許容範囲内である場合には、プレッシャフットの加圧が解除され、処理が終了する。
一方、ステップS9において、測定値が許容範囲外である場合には、装置が停止され、原因究明及び処置が行なわれる。
Claims (13)
- 複合材を含む対象部材に設けられた皿ボルト用穴の形状を測定する、穴形状測定装置であって、
前記皿ボルト用穴は、
前記対象部材の主面に設けられた開口に接続され、前記主面からの深さが大きくなるほど径が小さくなるような形状を有する皿部と、
一端で前記皿部の底部分に接続され、他端で前記対象部材の裏面に設けられた開口に接続され、径が一定である、一定部とを有し、
前記穴形状測定装置は、
前記一定部の径を測定する、穴径測定機構と、
前記皿部の径が予め決められた基準径となる深さを皿深さとして測定する、皿深さ測定機構とを備え、
前記穴径測定機構は、
先端部分で前記一定部に挿入され、前記一定部の径に応じて変位するように構成された、穴径測定ロッドと、
前記穴径測定ロッドの変位量を測定する、穴径測定センサとを有し、
前記皿深さ測定機構は、
先端部分で前記皿部に挿入され、前記皿深さに応じて変位するように構成された、皿深さ測定ロッドと、
前記皿深さ測定ロッドの変位量を測定する、皿深さ測定センサとを有し、
前記穴径測定ロッドと前記皿深さ測定ロッドとは、同軸になるように設けられている
穴形状測定装置。 - 請求項1に記載された穴形状測定装置であって、
前記皿深さ測定ロッドは、筒状であり、
前記穴径測定ロッドは、前記皿深さ測定ロッドの先端から突き出るように、前記皿深さ測定ロッドに挿入されている
穴形状測定装置。 - 請求項1又は2に記載された穴形状測定装置であって、
更に、
測定ヘッド保持機構と、
前記測定ヘッド保持機構に着脱自在に保持される、測定ヘッドと、
を具備し、
前記穴径測定ロッド及び前記皿深さ測定ロッドは、前記測定ヘッドに取り付けられており、
前記穴径測定センサ及び前記皿深さ測定センサは、前記測定ヘッド保持機構に取り付けられており、
前記穴径測定ロッド及び前記穴径測定センサは、前記測定ヘッドが前記測定ヘッド保持機構に取り付けられた場合に、互いに接続されるように設けられており、
前記皿深さ測定ロッド及び前記皿深さ測定センサは、前記測定ヘッドが前記測定ヘッド保持機構に取り付けられた場合に、互いに接続されるように設けられている
穴形状測定装置。 - 請求項3に記載された穴形状測定装置であって、
前記測定ヘッドには、皿深さの測定時に前記対象部材の主面に当接する、測定基準面が設けられており、
前記皿深さ測定ロッドの先端には、皿深さ測定子が設けられ、
前記皿深さ測定子は、前記基準径を有し、前記皿部の壁面に当接する、基準径部を備え、
前記皿深さ測定ロッドは、前記皿深さ測定子が前記測定基準面から突き出るように、弾性部材を介して前記測定ヘッドに支持されている
穴形状測定装置。 - 請求項4に記載された穴形状測定装置であって、
前記皿深さ測定子には、更に、前記基準径部から先端側へ向かって径が小さくなるテーパー部が形成されており、
前記テーパー部と前記主面とが成す角度は、前記皿深さ測定子が前記基準径部のみで前記皿部の壁面に当接するように、前記皿部の壁面が前記主面と成す角度よりも小さく設定されている
穴形状測定装置。 - 請求項4又は5に記載された穴形状測定装置であって、
更に、
エアーブロー機構、
を具備し、
前記測定基準面には、空気噴射用の開口が設けられており、
前記エアーブロー機構は、前記空気噴射用の開口を介して空気を噴射するように構成されている
穴形状測定装置。 - 請求項2乃至6のいずれかに記載された穴形状測定装置であって、
更に、
前記測定ヘッド保持機構を、前記対象部材の主面に垂直である第1方向に沿って移動可能になるように支持する、本体機構と、
前記第1方向における前記本体機構に対する前記測定ヘッド保持機構の位置を検出するZ軸位置検出センサと、
を具備する
穴形状測定装置。 - 請求項7に記載された穴形状測定装置であって、
更に、
前記本体機構に対する前記測定ヘッド保持機構の位置を調節するバランスエアシリンダ、
を具備する
穴形状測定装置。 - 請求項1乃至8のいずれかに記載された穴形状測定装置であって、
更に、
前記対象部材の主面が平面に前記対象部材の主面を押さえつける、プレッシャフットと、
プレッシャフット穴基準で穴加工ドリル軸と穴形状計測軸をシフトする機構
を具備し、
前記プレッシャフットには、測定用開口が設けられており、
前記穴計測定ロッド及び前記皿深さ測定ロッドは、前記測定用開口を介して、前記皿ボルト用穴に挿入される
穴形状測定装置。 - 複合材を含む対象部材に設けられた皿ボルト用穴の形状を測定する、穴形状測方法であって、
前記皿ボルト用穴は、
前記対象部材の主面に設けられた開口に接続され、前記主面からの深さが大きくなるほど径が小さくなるような形状を有する皿部と、
一端で前記皿部の底部分に接続され、他端で前記対象部材の裏面に設けられた開口に接続され、径が一定である、一定部とを有し、
前記穴形状測定方法は、
穴径測定ロッドの先端を前記一定部に挿入することにより、前記一定部の径を測定するステップと、
前記穴径測定ロッドと同軸になるように設けられた皿深さ測定ロッドの先端を前記皿部に挿入することにより、前記皿部の皿深さを測定するステップと、
を具備する
穴形状測定方法。 - 請求項10に記載された穴形状測定方法であって、
前記穴径測定ロッドは、穴への挿入時に一方向における穴の径に応じて変位するように構成されており、
前記一定部の径を測定するステップは、
前記皿深さを測定するステップよりも前に、穴径測定ロッドの先端を前記一定部に挿入し、第2方向における前記一定部の径を測定するステップと、
前記皿深さを測定するステップの後に、前記穴径測定ロッドを回転させるステップと、
前記回転させるステップの後に、前記穴径測定ロッドにより、第3方向における前記一定部の径を測定するステップとを含む
穴形状測定方法。 - 請求項11に記載された穴形状測定方法であって、
前記回転させるステップは、前記穴径測定ロッドを90°回転させるステップを含んでいる
穴形状測定方法。 - 請求項10又は11に記載された穴形状測定方法であって、
更に、
前記一定部の径を測定するステップよりも前に、予め皿深さ及び穴径が既知である基準穴が設けられたマスターゲージを準備するステップと、
前記一定部の径を測定するステップよりも前に、前記穴径測定ロッド及び前記皿深さ測定ロッドを用いて、前記基準穴の皿深さ及び穴径を測定し、測定結果に基づいて校正を行うステップと、
を具備する
穴形状測定方法。
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CA2862764A CA2862764C (en) | 2012-01-20 | 2013-01-18 | Hole-shape measuring apparatus and hole-shape measuring method |
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US20150040414A1 (en) | 2015-02-12 |
JP2013148522A (ja) | 2013-08-01 |
CN104067086B (zh) | 2016-09-28 |
EP2808642A1 (en) | 2014-12-03 |
EP2808642B1 (en) | 2016-09-07 |
US9429412B2 (en) | 2016-08-30 |
CN104067086A (zh) | 2014-09-24 |
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CA2862764C (en) | 2017-10-10 |
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