CN105841587B - A kind of centering measuring apparatus for being used to detect two cross bore centre-to-centre spacing in cross holes - Google Patents
A kind of centering measuring apparatus for being used to detect two cross bore centre-to-centre spacing in cross holes Download PDFInfo
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- CN105841587B CN105841587B CN201610181450.4A CN201610181450A CN105841587B CN 105841587 B CN105841587 B CN 105841587B CN 201610181450 A CN201610181450 A CN 201610181450A CN 105841587 B CN105841587 B CN 105841587B
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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
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
- G01B5/143—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures between holes on a workpiece
Abstract
The invention discloses a kind of for detecting the centering measuring apparatus of two cross bore centre-to-centre spacing in cross holes, the holes including elastic centering expansion set, centering pull rod, centering compression bar, eccentric wheel hold-down mechanism and positioning pin composition positions centring means；Handle is servo-actuated eccentric cam, bearing setting circle section and forms displacement cam mechanism and auxiliary centering mechanism with zygostyle.Holes positioning centring means is inserted into the first hole of part system to be measured, rotating eccentricity wheel pressing device makes centering pull rod, centering compression bar movement that elastic centering expansion set be made to open to the centering of the first hole system, and displacement cam mechanism and the positioning of auxiliary centering mechanism are inserted into both sides from the second hole of part system to be measured.Rotation handle band moving cam rotation makes its wheel rim and elastic centering expansion set outer circle tangent, servo-actuated eccentric cam end face radially be carved with logical first hole system with the second hole system difference centre-to-centre spacing corresponding angle index, the operating center distance of surveyed part cross bore can be quickly learnt by viewing angle graduation mark, realization quick and precisely measures.
Description
Technical field
The present invention relates to a kind of for detecting the centering measuring apparatus of two cross bore centre-to-centre spacing in cross holes.
Background technology
Holes center distance measurement is bulk important in part, and by the machining accuracy of related holes, circularity is missed
Difference influences, and is the important parameter for calculating meshing gear or turbine and worm gearratio in product design, and the variation of processing dimension is led
The variation of gearratio has been caused, has generated the fluctuation of torque fluctuations and transmission efficiency, holes centre-to-centre spacing error is often led in assembling
It is difficult to engage not in place or assembling, easily causes looseness or product abnormal sound and twisting resistance away from increase, in all transmission systems, in
The heart is ensured by equipment precision substantially away from being critical size in processing, because it is by related holes machining accuracy shadow itself
It rings, the product center that actual processing is completed is away from easily generation fluctuation.At present there are many ways to quantitative measurment centre-to-centre spacing, such as three sit
Detection, holes feeler gauge+slide calliper rule etc. are marked, the measurement of comparison modes such as a stopple rule+amesdial can be used for larger product, but for
Miniature parts aforesaid way of the diameter of bore to be measured less than 50mm is especially right there are the problem of promptness and difficult Design of Measuring Tools
In production scene, can not be quickly obtained holes centre-to-centre spacing actual value will seriously affect processing efficiency, and there are larger product qualities
Risk.
It is at present clearance gauge of two straight cylinders by specific dimensions for the detection mode of miniature parts its centre bores, judges to close
Whether lattice, which has the advantages that fast qualitative detection, but cannot carry out accurate dimension adjustment.
Invention content
For cross holes centre-to-centre spacing in quick accurate detection miniature parts, intersect the present invention provides one kind for detecting
The centering measuring apparatus of two cross bore centre-to-centre spacing in the system of hole, it is fixed including holes positioning centring means, displacement cam mechanism and auxiliary
Concentric mechanism, measuring cross holes centre-to-centre spacing using the device can eliminate or weaken in detection process caused by the precision of hole itself
Centre-to-centre spacing size fluctuation, rapid feedback actual measured results provide data supporting for product processing adjustment and quality control.
The invention is realized by the following technical scheme：
A kind of centering measuring apparatus for being used to detect two cross bore centre-to-centre spacing in cross holes positions centering dress including holes
It puts, float centrih is carried out for two bearing holes being fastened to the first hole in part cross holes to be measured, and by two bearing holes
The axis being centrally formed is transmitted in positioning centring means outer circle, the fixing end as detection；
Displacement cam mechanism and auxiliary centering mechanism, it is described for positioning the second hole system in part cross holes to be measured
Displacement cam mechanism and auxiliary centering mechanism are rotatable, the adjustable side as detection；
Holes positioning centring means by elastic centering expansion set, centering pull rod, centering compression bar, eccentric wheel hold-down mechanism and
Positioning pin forms；In substantially tubular the first hole system for being used to be mounted in part cross holes to be measured of the elastic centering expansion set
To two bearing hole position float centrihs in the first hole system, the both ends of elastic centering expansion set are by multiple flexible in an axial direction
Round petals form, and the endoporus of elastic centering expansion set is equipped with taper；Part centering is arranged in the endoporus of the elastic centering expansion set to draw
Bar, the centering pull rod bottom are equipped with taper, and centering pull rod can slide to push elasticity fixed in the elastic centering expansion set
The round petals of distention related to the heart set lower end are opened or are closed；The top that the centering compression bar is set in the centering pull rod simultaneously can be along described
Pull rod of feeling relieved slides；The lower end periphery face of centering compression bar is set as type conical bench, which is located at the elastic centering expansion set
It is interior；The elastic centering expansion set upper end hole wall is equipped with and the matched type conical bench hole of type conical bench on the centering compression bar
So as to form hook structure, the round petals of elastic centering expansion set upper end are made when centering compression bar is along the centering pull rod slide downward
It opens, the elastic centering expansion set from part to be measured can be synchronized and drawn when centering compression bar is along the centering pull rod upward sliding
Go out；The eccentric wheel hold-down mechanism is made of the connecting portion of two eccentric wheels of two eccentric wheels and connection, eccentric wheel hold-down mechanism
Two eccentric wheels by the positioning pin be fixedly connected on it is described centering pull rod upper end, eccentric wheel hold-down mechanism can be around described
Positioning pin rotation makes the outer circle of described two eccentric wheels act on the upper surface of the centering compression bar so as to push the centering pressure
Bar slide downward, while pull rod of feeling relieved moves up, by the way that respectively conical surface collective effect is elastic on feel relieved pull rod and centering compression bar
Centering expansion set, opens the round petals of elastic centering expansion set upper and lower ends, the round petals after opening and part bearing hole shape to be measured
Circle is contacted into line so that it is guaranteed that two bearings hole is felt relieved；
The displacement cam mechanism integrated molding is from left to right followed successively by handle, servo-actuated eccentric cam, bearing setting circle section
With with zygostyle；The servo-actuated eccentric cam is eccentric circular wheel；
Matching on the displacement cam mechanism is set with the auxiliary centering mechanism on zygostyle；The auxiliary centering mechanism is in pipe
Shape, the peripheral surface of auxiliary centering mechanism are equipped with ladder；
Bearing setting circle section on the displacement cam mechanism is mounted on the second hole system top in part cross holes to be measured
In end bearing hole, the miner diameter end of auxiliary centering mechanism peripheral surface be mounted on part cross holes to be measured in the second hole system bottom end axis
The second hole system is positioned in bearing bore；
Handle on the rotatable displacement cam mechanism in the measurements drives servo-actuated eccentric cam rotation, passes through rotation
The outer circle that can make elastic centering expansion set on servo-actuated eccentric cam outer circle and holes positioning centring means is tangent, only need to
Marking includes helical starting point, terminal, each angular centre away from conversion node on dynamic eccentric cam, according to point of contact angle-determining during measurement
Part cross bore centre-to-centre spacing numerical value to be measured.
Further, in order to ensure centering pull rod and elastic centering expansion set are concentric, the centering pull rod and elastic centering expansion set
It is gap-matched.
Further, in order to ensure centering compression bar and centering pull rod are concentric, the centering compression bar and centering pull rod use gap
Assembling.
Further, the two bearings hole orientation axis positioned in order to ensure displacement cam mechanism and auxiliary centering mechanism is same
The heart, the displacement cam mechanism and auxiliary centering mechanism are assembled using slotted mode match grinding.
Further, the servo-actuated eccentric cam both ends of the surface on the displacement cam mechanism are radially carved with angle line, angle line
Circle center line connecting about the servo-actuated eccentric cam center of circle and bearing setting circle section is symmetrical, and side graduation mark is used as measuring, and opposite side is carved
It spends line and is used as verification measuring device.
Further, in order to simplify design, the displacement cam mechanism and auxiliary centering mechanism and the cooperation of part to be measured are adopted
It is designed with maximum material principle.
Beneficial effects of the present invention：
1st, centring means is positioned using holes, eliminates what first machining accuracy of hole system two end axles bearing bore itself generated detection
It influences.Holes positioning centring means employs elastic expansion sleeve structure, has effectively eliminated the first hole system bearings at both ends hole machined and has missed
Difference, and employ arc contact with the first hole system two end axles bearing bore is contacted using line in any opening or closed state,
The angle change that the variation of plane taper is brought is effectively prevented, eliminates systematic error；
2nd, holes positioning centring means is using centering pull rod of the off-centre operation mode tension and compression with taper, positioning compression bar, structure letter
Single, operation is quick, and reliability is high；
3rd, holes positioning centring means is positioning the drawing of hook structure of compression bar bottom and elastic centering expansion set top design
Go out device, it is situation too small, that centering machine can not be extracted after being inserted into effectively prevent due to the first hole, it is ensured that using effect；
4th, off-centre operation mode is employed in displacement cam mechanism, manufacture difficulty substantially reduces, can be according to reality in use
Center hole precision and detection corner suitably adjust eccentricity, compact-sized, due to being rigid contact, after rotation process contact not by
Rotating torque influence, can according to servo-actuated eccentric cam with the contacting points position combination marking of elastic centering expansion set in servo-actuated eccentric cam
Each centre-to-centre spacing correspondence markings point quickly read the centre-to-centre spacing of practical two cross bores；
5th, compared with three-dimensional coordinates measurement, the present apparatus, to use environment without particular/special requirement, disclosure satisfy that production in addition to efficient
Scene or erecting yard grouping use, and testing result is credible, and service efficiency is higher than more traditional logical only mode；
6th, expandability of the invention is strong, is not influenced by intersecting hole system angle, can pass through design according to different accuracy
Servo-actuated eccentric cam is realized with bearing setting circle section difference eccentricity.
Description of the drawings
Fig. 1 is that holes positions centring means axonometric drawing in the embodiment of the present invention；
Fig. 2 is Fig. 1 sectional views；
Fig. 3 is displacement cam mechanism and auxiliary centering structural scheme of mechanism in the embodiment of the present invention；
Fig. 4 is displacement cam mechanism angle groove schematic diagram in the embodiment of the present invention；
Fig. 5 a are the centering measuring apparatus of detection cross holes centre-to-centre spacing provided in an embodiment of the present invention and detection part
Assembling schematic diagram；
Fig. 5 b are the centering measuring apparatus of detection cross holes centre-to-centre spacing provided in an embodiment of the present invention and detection part
Decomposition diagram；
Fig. 5 c are the centering measuring apparatus of detection cross holes centre-to-centre spacing provided in an embodiment of the present invention and detection part
Decomposition diagram；
Fig. 5 d are that the centering measuring apparatus of detection cross holes centre-to-centre spacing provided in an embodiment of the present invention is mounted on detection zero
Axonometric drawing on part；
Fig. 5 e are that the centering measuring apparatus of detection cross holes centre-to-centre spacing provided in an embodiment of the present invention is mounted on detection zero
Schematic diagram on part；
Fig. 6 is that centre-to-centre spacing calculates schematic diagram in the embodiment of the present invention.
Reference numeral
1- holes positions centring means；11- elastic centering expansion sets；12- centering pull rods；13- centering compression bars；131- is bored
Shape step；14- eccentric wheel hold-down mechanisms；15- positioning pins；2- displacement cam mechanisms；21- handles；22- is servo-actuated eccentric convex
Wheel；221- angle lines；23- bearing setting circle sections；24- matches zygostyle；3- auxiliary centerings mechanism；4- parts to be measured；41-
One hole system；The second holes of 42- system.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
It is a kind of for detecting the centering measuring apparatus of two cross bore centre-to-centre spacing in cross holes as shown in Fig. 5 a- Fig. 5 e, it wraps
Holes positioning centring means 1 is included, for being that two bearing holes on 41 float to the first hole in 4 cross holes of part to be measured
Centering, and the axis that two bearing holes are centrally formed is transmitted in the outer circle of centering expansion set, the fixing end as detection.
Displacement cam mechanism 2 and auxiliary centering mechanism 3 are 42 for positioning the second hole in 4 cross holes of part to be measured,
The displacement cam mechanism 2 and auxiliary centering mechanism 3 are rotatable, the adjustable side as detection.
As depicted in figs. 1 and 2, the holes positioning centring means 1 is by elastic centering expansion set 11, centering pull rod 12, centering
Compression bar 13, eccentric wheel hold-down mechanism 14 and positioning pin 15 form.The elastic centering expansion set 11 is substantially tubular to be used to be mounted on
To two bearing hole position float centrihs in the first hole system in the first hole system in part cross holes to be measured.Elastic centering is swollen
The both ends of set 11 are made of multiple round petals flexible in an axial direction, and the endoporus of elastic centering expansion set 11 is equipped with taper.It is described
Centering pull rod 12 in part is arranged in the endoporus of elastic centering expansion set 11,12 bottom of the centering pull rod is equipped with taper, pull rod of feeling relieved
12 can slide in the elastic centering expansion set 11 so as to which the round petals of 11 lower end of elastic centering expansion set be pushed to open or close,
The centering pull rod 12 and elastic centering expansion set 11 are gap-matched, it is ensured that with one heart.The centering compression bar 13 is set in described
The top of centering pull rod 12 can simultaneously be slided along the centering pull rod 12, and centering compression bar 13 and centering pull rod 12 are gap-matched,
Ensure with one heart.The lower end periphery face of centering compression bar 13 is set as type conical bench 131, which is located at the elastic centering
In expansion set 11.The 11 upper end hole wall of elastic centering expansion set is equipped with to be matched with the type conical bench 131 on the centering compression bar
Type conical bench hole so as to form hook structure, make elastic centering swollen when centering compression bar 13 is along centering 12 slide downward of pull rod
The round petals for covering 11 upper ends are opened, can the elastic centering is swollen when centering compression bar 13 is along centering 12 upward sliding of pull rod
Set 11 is synchronous from part to be measured to be pulled out.The eccentric wheel hold-down mechanism 14 is by two eccentric wheels and the company for connecting two eccentric wheels
Socket part forms, and two eccentric wheels of eccentric wheel hold-down mechanism 14 are fixedly connected on the centering pull rod 12 by the positioning pin 15
Upper end.It is described fixed that eccentric wheel hold-down mechanism 14 can act on the outer circle of described two eccentric wheels around the positioning pin 15 rotation
The upper surface of heart compression bar 13 is so as to push centering 13 slide downward of compression bar, while pull rod 12 of feeling relieved moves up, by fixed
Respective conical surface collective effect elastic centering expansion set 11, makes 11 upper and lower ends of elastic centering expansion set on heart pull rod 12 and centering compression bar 13
Round petals open, the round petals after opening and part bearing hole to be measured form line and contacts and justify so that it is guaranteed that the centering of two bearings hole,
Eliminate influence of the diameter error because of hole in piece part to be measured to measurement result.
As shown in figure 3, the displacement cam mechanism 2, which is integrally formed, is from left to right followed successively by handle 21, servo-actuated eccentric cam
22nd, bearing setting circle section 23 and with zygostyle 24.The servo-actuated eccentric cam 22 is eccentric circular wheel.The displacement cam mechanism
On 22 both ends of the surface of servo-actuated eccentric cam be radially carved with angle line 221, angle line 221 about servo-actuated 22 center of circle of eccentric cam and
The circle center line connecting of bearing setting circle section 23 is symmetrical.
Matching on the displacement cam mechanism is set with the auxiliary centering mechanism 3 on zygostyle 24.The displacement cam mechanism 2
With auxiliary centering mechanism 3 using the assembling of slotted mode match grinding, it is ensured that the two bearings hole orientation axis positioned is with one heart and displacement
Cam mechanism smooth rotation.In a tubular form, the peripheral surface of auxiliary centering mechanism 3 is equipped with ladder for the auxiliary centering mechanism 3.
As shown in Fig. 5 a- Fig. 5 e, the bearing setting circle section 23 on the displacement cam mechanism is intersected mounted on part 4 to be measured
The second hole in the system of hole is in 42 top bearing holes, the miner diameter end of 3 peripheral surface of auxiliary centering mechanism intersects mounted on part 4 to be measured
The second hole in the system of hole is that the second hole system is positioned in 42 bottom end bearing holes.
Handle 21 on the rotatable displacement cam mechanism in the measurements, drives servo-actuated eccentric cam 22 to rotate, passes through
Rotation can make the middle part outer circle of elastic centering expansion set 11 on servo-actuated 22 outer circle of eccentric cam and holes positioning centring means
It is tangent, only need on servo-actuated eccentric cam 22 marking including helical starting point, terminal, each angular centre away from conversion node, during measurement
Part cross bore centre-to-centre spacing numerical value to be measured can determine according to point of contact angle.Pass through setting 22 rational cam of servo-actuated eccentric cam
Helical, can quantitative measurment by each node among the servo-actuated eccentric cam 22 of calculating and the contact point position of centering expansion set outer circle
The centre-to-centre spacing of part.Angle line can be radially carved with by calculating 22 both ends of the surface of servo-actuated eccentric cam on displacement cam mechanism
221, practical centre-to-centre spacing can quickly be learnt by observation.The eccentricity for being optimally servo-actuated eccentric cam 22 can be controlled in reality
The 50%-75% of holes center distance tolerance absolute value to ensure the reliable measurements of babinet centre-to-centre spacing to be measured, makes full use of servo-actuated inclined
The attaching space that 0 ° to ± 180 ° of cardiac prominence wheel.
In order to simplify the cooperation of design, the displacement cam mechanism 2 and auxiliary centering mechanism 3 with part to be measured using maximum
Entity principle designs, so as to which the processing for receiving tight the second hole of part system to be measured is gone on business.
For example, holes centre-to-centre spacing isThe mid diameter Φ d sizes of elastic centering expansion set 11 are
During 26.000mm, the axle center of servo-actuated eccentric cam 22 and displacement cam mechanism 2 can be deviated 0.1mm, then be servo-actuated eccentric cam 22
The corresponding centre-to-centre spacing C of upper each point and the function of angle [alpha] can be according to the cosine law (OC2=OA2+AC2- 2OA × AC × cos ɑ) it asks
Solution, such as Fig. 6, OA be the eccentricity of servo-actuated eccentric cam 22, and AB be that (Φ D are that be servo-actuated bias convex for the radius of servo-actuated eccentric cam 22
The diameter of wheel 22, Φ D=55.600mm in the present embodiment), BC be to feel relieved that (Φ d are expansion sets 11 of feeling relieved for the exradius of expansion set 11
Outside diameter, Φ d=13.000mm in the present embodiment), ɑ is the angle of OA and AC, and OC is operating center distance.
Bring above-mentioned data into, when α values are 0~180 °, corresponding centre-to-centre spacing is 40.70mm~40.90mm, according to meter
It calculates, has shown that the corresponding angle of each centre-to-centre spacing is as shown in the table：
To sum up, the center of circle in 22 center of circle of eccentric cam and bearing setting circle section 23 can be servo-actuated on servo-actuated eccentric cam 22 to connect
Line is 0 °, as shown in figure 4, symmetrically carving the angle of calculating 0 ° to ± 180 ° both sides, passes through observation 22 He of servo-actuated eccentric cam
The points of tangency position of 11 outer circle of elastic centering expansion set, you can quickly learn the centre-to-centre spacing of part cross bore reality to be measured.By
Angle line is symmetrically carved on servo-actuated eccentric cam 22, can be used as school using side scale as use, opposite side is measured in practical measurement
It tests.Design in this way in actual use, is periodically used using the measuring device of the present invention on same part
The both sides of servo-actuated eccentric cam 22 are detected respectively, and whether observation testing result is identical, you can quickly measuring device can
It is verified by property, the actual diameter verified in practical applications according to measuring device, rational angle is taken after calculating as the upper of measurer
Lower limit marks the corresponding angle of each centre-to-centre spacing that quick measurement can be realized.
Claims (6)
1. a kind of centering measuring apparatus for being used to detect two cross bore centre-to-centre spacing in cross holes, it is characterised in that：Including holes
Centring means (1) is positioned, two bearing holes for being fastened to the first hole in part cross holes to be measured carry out float centrih, and
The axis that two bearing holes are centrally formed is transmitted in positioning centring means outer circle, the fixing end as detection；
Displacement cam mechanism (2) and auxiliary centering mechanism (3), for positioning the second hole system in part cross holes to be measured, institute
State displacement cam mechanism (2) and auxiliary centering mechanism (3) rotatably, the adjustable side as detection；
The holes positioning centring means (1) is by elastic centering expansion set (11), centering pull rod (12), centering compression bar (13), bias
Take turns hold-down mechanism (14) and positioning pin (15) composition；The elastic centering expansion set (11) is substantially tubular to be used to be mounted on to be measured zero
To two bearing hole position float centrihs in the first hole system, elastic centering expansion set (11) in the first hole system in part cross holes
Both ends be made of multiple round petals flexible in an axial direction, the endoporus of elastic centering expansion set (11) is equipped with taper；The bullet
Property centering expansion set (11) endoporus in be arranged part centering pull rod (12), it is described centering pull rod (12) bottom be equipped with taper, centering
Pull rod (12) can slide the round petals so as to push elastic centering expansion set (11) lower end in the elastic centering expansion set (11)
On or off is closed；The top that the centering compression bar (13) is set in the centering pull rod (12) simultaneously can be along the centering pull rod (12)
It slides；The lower end periphery face of centering compression bar (13) is set as type conical bench (131), and the type conical bench (131) is fixed positioned at the elasticity
In distention related to the heart set (11)；Elastic centering expansion set (11) upper end hole wall is equipped with and the type conical bench on the centering compression bar
(131) matched type conical bench hole is so as to form hook structure, and centering compression bar (13) is along the centering pull rod (12) to downslide
Open the round petals of elastic centering expansion set (11) upper end when dynamic, centering compression bar (13) along it is described centering pull rod (12) upward sliding
When can pull out the elastic centering expansion set (11) is synchronous from tested part；The eccentric wheel hold-down mechanism (14) is by two
The connecting portion composition of two eccentric wheels of eccentric wheel and connection, two eccentric wheels of eccentric wheel hold-down mechanism (14) pass through the positioning
Pin (15) is fixedly connected on the upper end of the centering pull rod (12), and eccentric wheel hold-down mechanism (14) can be revolved around the positioning pin (15)
Turn to make the outer circle of described two eccentric wheels to act on the upper surface of the centering compression bar (13) so as to push the centering compression bar
(13) slide downward, while pull rod of feeling relieved (12) moves up, by respectively being bored on pull rod of feeling relieved (12) and centering compression bar (13)
Face collective effect elastic centering expansion set (11) opens the round petals of elastic centering expansion set (11) upper and lower ends, the circle after opening
Arc valve forms line with part bearing hole to be measured and contacts circle so that it is guaranteed that two bearings hole is felt relieved；
It is fixed that displacement cam mechanism (2) integrated molding is from left to right followed successively by handle (21), servo-actuated eccentric cam (22), bearing
Circle of position section (23) and with zygostyle (24)；The servo-actuated eccentric cam (22) is eccentric circular wheel；
Matching on the displacement cam mechanism is set with the auxiliary centering mechanism (3) on zygostyle (24)；The auxiliary centering mechanism
(3) in a tubular form, the peripheral surface of auxiliary centering mechanism (3) is equipped with ladder；
Second hole system top of the bearing setting circle section (23) in part cross holes to be measured on the displacement cam mechanism
In end bearing hole, the miner diameter end of auxiliary centering mechanism (3) peripheral surface be mounted on part cross holes to be measured in the second hole system bottom
The second hole system is positioned in end bearing hole；
Handle (21) on the rotatable displacement cam mechanism in the measurements drives servo-actuated eccentric cam (22) rotation, passes through
Rotation can make the outer circle of elastic centering expansion set (11) on servo-actuated eccentric cam (22) outer circle and holes positioning centring means
It is tangent, it only marking need to include helical starting point, terminal, each angular centre away from conversion node on servo-actuated eccentric cam (22), measure
When according to point of contact angle-determining part cross bore centre-to-centre spacing numerical value to be measured.
2. it is according to claim 1 a kind of for detecting the centering measuring apparatus of two cross bore centre-to-centre spacing in cross holes,
It is characterized in that：The centering pull rod (12) and elastic centering expansion set (11) are gap-matched, it is ensured that with one heart.
3. it is according to claim 1 a kind of for detecting the centering measuring apparatus of two cross bore centre-to-centre spacing in cross holes,
It is characterized in that：The centering compression bar (13) and centering pull rod (12) are gap-matched.
4. it is according to claim 1 a kind of for detecting the centering measuring apparatus of two cross bore centre-to-centre spacing in cross holes,
It is characterized in that：The displacement cam mechanism (2) and auxiliary centering mechanism (3) are assembled using slotted mode match grinding.
5. it is according to claim 1 a kind of for detecting the centering measuring apparatus of two cross bore centre-to-centre spacing in cross holes,
It is characterized in that：Servo-actuated eccentric cam (22) both ends of the surface on the displacement cam mechanism are radially carved with angle line (221), angle
It is symmetrical about the circle center line connecting in servo-actuated eccentric cam (22) center of circle and bearing setting circle section (23) to spend line (221).
6. it is according to claim 1 a kind of for detecting the centering measuring apparatus of two cross bore centre-to-centre spacing in cross holes,
It is characterized in that：The displacement cam mechanism (2) and auxiliary centering mechanism (3) and the cooperation of part to be measured are former using maximum solid
Then design.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610181450.4A CN105841587B (en) | 2016-03-28 | 2016-03-28 | A kind of centering measuring apparatus for being used to detect two cross bore centre-to-centre spacing in cross holes |
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|---|---|---|---|
| CN201610181450.4A CN105841587B (en) | 2016-03-28 | 2016-03-28 | A kind of centering measuring apparatus for being used to detect two cross bore centre-to-centre spacing in cross holes |
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| CN105841587B true CN105841587B (en) | 2018-06-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106500575A (en) * | 2016-11-29 | 2017-03-15 | 四川凌峰航空液压机械有限公司 | The detection method and its detection means of two antarafacial axis hole central axis upright degree |
| CN109000544B (en) * | 2018-07-17 | 2020-10-30 | 江苏理工学院 | Hole center distance measuring device for vertically intersected holes |
| CN110125834A (en) * | 2019-05-16 | 2019-08-16 | 沈阳飞机工业（集团）有限公司 | A kind of fixture for examining cross bore pitch-row |
| CN111174661B (en) * | 2020-01-21 | 2021-08-24 | 江苏理工学院 | Hole center distance measuring device for vertically intersected holes |
| CN113739667B (en) * | 2021-11-03 | 2022-03-08 | 科华控股股份有限公司 | Detection tool and detection method for turbocharger middle shell |
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| CN102967235A (en) * | 2012-11-18 | 2013-03-13 | 无锡麦铁精密机械制造有限公司 | Device for detecting distance among crossed pits |
| CN203572403U (en) * | 2013-11-07 | 2014-04-30 | 扬州锻压机床股份有限公司 | Device for detecting center distance between sliding block worm wheel hole and worm hole |
| DE102012220065A1 (en) * | 2012-11-05 | 2014-06-12 | Bayerische Motoren Werke Aktiengesellschaft | Device for measuring gear i.e. spur gear, of gear box for vehicle, has eccentric cam rotated for adjusting center distance of master gear and gear, and pivot bearing arranged between eccentric cam and master gear and/or between cam and gear |
-
2016
- 2016-03-28 CN CN201610181450.4A patent/CN105841587B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201440064U (en) * | 2009-07-31 | 2010-04-21 | 宁波优耐特模具有限公司 | Measuring device for measuring space between two holes |
| DE102012220065A1 (en) * | 2012-11-05 | 2014-06-12 | Bayerische Motoren Werke Aktiengesellschaft | Device for measuring gear i.e. spur gear, of gear box for vehicle, has eccentric cam rotated for adjusting center distance of master gear and gear, and pivot bearing arranged between eccentric cam and master gear and/or between cam and gear |
| CN102967235A (en) * | 2012-11-18 | 2013-03-13 | 无锡麦铁精密机械制造有限公司 | Device for detecting distance among crossed pits |
| CN203572403U (en) * | 2013-11-07 | 2014-04-30 | 扬州锻压机床股份有限公司 | Device for detecting center distance between sliding block worm wheel hole and worm hole |
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| CN105841587A (en) | 2016-08-10 |
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