CN105890500B - The contour detecting device of connecting rod - Google Patents
The contour detecting device of connecting rod Download PDFInfo
- Publication number
- CN105890500B CN105890500B CN201610412107.6A CN201610412107A CN105890500B CN 105890500 B CN105890500 B CN 105890500B CN 201610412107 A CN201610412107 A CN 201610412107A CN 105890500 B CN105890500 B CN 105890500B
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- China
- Prior art keywords
- connecting rod
- measurement assembly
- measurement
- hole
- mounting hole
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Classifications
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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
- G01B5/003—Measuring of motor parts
-
- 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
Abstract
The invention discloses a kind of contour detecting device of connecting rod, including：Pedestal, the top surface of pedestal are equipped with the first big end hole positioning region, the first small head bore positioning region and two the first measurement assembly mounting holes；The first circular arc is equipped between the both sides of the big end hole of first connecting rod and the shaft of first connecting rod, the principal radii of the first circular arc is the first radius, and the axis of two the first measurement assembly mounting holes is overlapped with the theoretical axis of corresponding first circular arc；First measurement assembly is rotatably mounted in the first measurement assembly mounting hole, and the first measurement assembly includes first stroke of bar, and the first measurement portion, the distance between the axis of the first measurement assembly mounting hole and the end face of the first measurement portion are the first radiuses.Work efficiency of the present invention is high, and testing cost is low, and entire detection process is convenient and safe.
Description
Technical field
The present invention relates to engine art, the contour detecting device of more particularly to a kind of connecting rod.
Background technology
, it is necessary to be detected to the geometrical property project of connecting rod in combustion engine manufacture, the profile of connecting rod is avoided (in such as Fig. 1
Profile 121 etc.) entity is loose, cause to interfere with cylinder jacket lower edge in assembling and work.The profile ruler of connecting rod
The detection of very little project is generally using projecting apparatus or three coordinate machine testings, but stroke due to projecting apparatus and three coordinate machines take and exist
Limitation, measuring speed is slower, and work efficiency is low.
The information for being disclosed in the background section is merely intended to increase the understanding of the general background to the present invention, without answering
When being considered as recognizing or imply that the information structure has been the prior art well known to persons skilled in the art in any form.
The content of the invention
It is an object of the invention to provide a kind of contour detecting device of connecting rod, so as to overcome the work of existing measuring method
Make the shortcomings that efficiency is low.
To achieve the above object, the present invention provides a kind of contour detecting device of connecting rod, contour detecting device includes：Bottom
Seat, the top surface of pedestal are equipped with the first big end hole positioning region, the first small head bore positioning region and two the first measurement assembly installations
Hole, the first big end hole positioning region are mounted in the big end hole of first connecting rod, and the first small head bore positioning region is mounted on first connecting rod
In small head bore；The first circular arc, the reason of the first circular arc are equipped between the both sides of the big end hole of first connecting rod and the shaft of first connecting rod
It is the first radius by radius, the axis of two the first measurement assembly mounting holes is overlapped with the theoretical axis of corresponding first circular arc；
First measurement assembly, the first measurement assembly are rotatably mounted in the first measurement assembly mounting hole, and the first measurement assembly includes first
Bar is drawn, first stroke of bar is equipped with the first rod-shaped measurement portion, and the first measurement portion is from the first measurement assembly mounting hole to the first circular arc
Extension, the distance between the axis of the first measurement assembly mounting hole and the end face of the first measurement portion are the first radiuses.
Preferably, the second circle is equipped in above-mentioned technical proposal, between the big end hole of first connecting rod and the first circular arc of one side
Arc, the principal radii of the second circular arc is the second radius, and the first radius is different from the second radius；Measuring gage installation is additionally provided on pedestal
Hole, the axis of measuring gage mounting hole are overlapped with the theoretical axis of the second circular arc；Contour detecting device further includes measuring gage, measuring gage
It is rotatably installed in measuring gage mounting hole, measuring gage is equipped with measurement cylindrical surface, measures a diameter of second radius on cylindrical surface.
Preferably, in above-mentioned technical proposal, the second big end hole positioning region is additionally provided on the top surface of pedestal, the second small head bore is determined
Position portion and two the second measurement assembly mounting holes, the second big end hole positioning region are mounted in the big end hole of second connecting rod, and second
Small head bore positioning region is mounted in the small head bore of second connecting rod；The both sides of the big end hole of second connecting rod and the shaft of second connecting rod it
Between be equipped with three-arc, the principal radii of three-arc is the 3rd radius, the axis and phase of two the second measurement assembly mounting holes
The theoretical axis for the three-arc answered overlaps；Contour outline measuring set further includes the second measurement assembly, the second measurement assembly rotation peace
In the second measurement assembly mounting hole, the second measurement assembly includes second stroke of bar, and second stroke of bar is equipped with rod-shaped second and surveys
Amount portion, the second measurement portion extend from the second measurement assembly mounting hole to three-arc, the axis of the second measurement assembly mounting hole with
The distance between end face of second measurement portion is the 3rd radius.
Preferably, in above-mentioned technical proposal, the first measurement assembly further includes lead, and the lower part insertion first of lead is surveyed
It measures in component mounting hole；First stroke of bar is additionally provided with the first base portion, and the first base portion is vertical with the first measurement portion, the side on lead top
Face is fixedly connected with the first base portion.
Preferably, in above-mentioned technical proposal, the first measurement assembly further includes handle, and handle is fixed on the top surface of lead
On.
Preferably, in above-mentioned technical proposal, the first measurement assembly mounting hole, the second measurement assembly mounting hole and measuring gage
Bushing is equipped in mounting hole.
Preferably, in above-mentioned technical proposal, the first small head bore positioning region and the second small head bore positioning region are hexagon cylinder.
Compared with prior art, the present invention has the advantages that：
The contour detecting device of the present invention drives a stroke bar rotation that can quickly detect tested connecting rod by measurement assembly
Whether blank entity is loose, and work efficiency is high, and testing cost is low, and entire detection process is convenient and safe；Pedestal is equipped with cylinder
The big end hole locating piece of shape and the small head bore locating piece of hexagon bar shape realize the quick positioning and installation of connecting rod.
Description of the drawings
Fig. 1 is the usage state diagram of the contour detecting device of connecting rod according to the present invention.
Fig. 2 is the stereogram of the contour detecting device of connecting rod according to the present invention.
Fig. 3 is the front view of the contour detecting device of connecting rod according to the present invention.
Fig. 4 is the top view of the contour detecting device of connecting rod according to the present invention.
Fig. 5 is the A-A views of Fig. 4.
Fig. 6 is the B-B views of Fig. 4.
Fig. 7 is the C-C views of Fig. 4.
Fig. 8 is the front view of base assembly according to the present invention.
Fig. 9 is the G-G views of Fig. 8.
Figure 10 is the A-A views of Fig. 8.
Figure 11 is the E-E views of Fig. 8.
Figure 12 is the F-F views of Fig. 8.
Figure 13 is the sectional view of the first big end hole locating piece according to the present invention.
Figure 14 is the stereogram of the according to the present invention first small head bore locating piece.
Figure 15 is the stereogram of the second big end hole locating piece according to the present invention.
Figure 16 is the sectional view of the second big end hole locating piece according to the present invention.
Figure 17 is the stereogram of the first measurement assembly according to the present invention.
Figure 18 is the stereogram of measuring gage according to the present invention.
Main Reference Numerals explanation：
1- pedestals, 2- hanging rings, 3- bushings, the first measurement assemblies of 4-, the first small head bore locating pieces of 5-, the first big end holes of 6- are determined
Position part, 7- the second big end hole locating pieces, the second small head bore locating pieces of 8-, 9- bushings, the second measurement assemblies of 10-, 11- measuring gages,
12- second connecting rods.
Specific embodiment
Below in conjunction with the accompanying drawings, the specific embodiment of the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield scope is not restricted by specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " comprising " or its change
It changes such as "comprising" or " including " etc. and will be understood to comprise stated element or component, and do not exclude other members
Part or other components.
As shown in Figure 1, the contour detecting device of the connecting rod of specific embodiment is used to detect first connecting rod according to the present invention
(not shown) and second connecting rod 12.The both ends of second connecting rod 12 are respectively big end hole and small head bore, and center section is shaft, major part
Three-arc 121 is equipped between the both sides in hole and shaft, the principal radii of three-arc 121 is the 3rd radius.First connecting rod
Structure is similar with the structure of second connecting rod 12, and the both ends of first connecting rod are respectively big end hole and small head bore, and center section is shaft,
The first circular arc is equipped between the both sides of the big end hole and shaft, the principal radii of the first circular arc is the first radius.Difference exists
In being equipped with the second circular arc between the big end hole of first connecting rod one side and the first circular arc, the principal radii of the second circular arc is the second half
Footpath, the first radius are different from the second radius.The contour detecting device of the connecting rod of the present invention is for the first circular arc of measurement, the second circular arc
And whether three-arc complies with standard.
As illustrated in figs. 2-7, the contour detecting device of connecting rod of the invention includes base assembly, the first measurement assembly 4, second
Measurement assembly 10 and measuring gage 11.
As shown in figure 8, base assembly includes pedestal 1, the first big end hole locating piece 6, the first small head bore locating piece 5, second
7 and second small head bore locating piece 8 of big end hole locating piece.
The top surface of pedestal 1 be equipped with to install the first big end hole location hole of first connecting rod, the first small head bore location hole,
For two the first measurement assembly mounting holes 130,140 for measuring the first circular arc and for measuring the installation of the measuring gage of the second circular arc
Hole 150 is additionally provided with to install the second big end hole location hole of second connecting rod, the second small head bore location hole and for measuring the 3rd
Two the second measurement assembly mounting holes 110,120 of circular arc.Multiple hanging rings 2 are arranged on pedestal 1.
As shown in figure 13, the first big end hole locating piece 6 is equipped with columnar first positioning region 61 and columnar first mounting portion
62, the first mounting portion 62 is inserted into the first big end hole location hole, and the first positioning region 61 is on the top surface of pedestal 1, such as Figure 11
It is shown.First big end hole locating piece 6 and the first big end hole location hole form the first big end hole positioning region.Outside first positioning region 61
Footpath is slightly less than the internal diameter of the big end hole of first connecting rod, and the big end hole of first connecting rod is mounted on the first positioning region 61.
As shown in figure 14, the first small head bore locating piece 5 is equipped with hexagon-head 51 successively, first flange portion 52 and second is pacified
Dress portion 53.As shown in figure 11, the second mounting portion 53 is inserted into the first small head bore location hole so that first flange portion 52 is connected to bottom
On the top surface of seat 1, hexagon-head 51 is on the top surface of pedestal 1.First small 5 and first small head bore location hole of head bore locating piece
Form the first small head bore positioning region.As shown in figure 14, the cross section of hexagon-head 51 is hexagon, the size of longer direction
With the dimensional fits of the small head bore of first connecting rod so that the small head bore of first connecting rod is mounted on hexagon-head 51.
As shown in figure 12, the structure of the second small head bore locating piece 8 and mounting means are identical with the first small head bore locating piece 5,
But size and the small head bore of second connecting rod coordinate so that the small head bore of second connecting rod 12 is mounted on the second small head bore locating piece 8
Hexagon-head on, as shown in Figure 1.Second small 8 and second small head bore location hole of head bore locating piece forms the second small head bore positioning
Portion.
As shown in figures 15-16, the second big end hole locating piece 7 successively be equipped with the second positioning region 71, second flange portion 72 and
3rd mounting portion 73.As shown in figure 12, the 3rd mounting portion 73 is inserted into the second big end hole location hole so that second flange portion 72 supports
It is connected on the top surface of pedestal 1, the second positioning region 71 is on the top surface of pedestal 1.Second big end hole locating piece 7 and the second major part
Hole location hole forms the second big end hole positioning region.As shown in Figure 1, the outer diameter of the second positioning region 71 is slightly less than the major part of second connecting rod
The internal diameter in hole, the big end hole of second connecting rod are mounted on the second positioning region 71.
As shown in Figure 1, when first connecting rod and second connecting rod are installed on base assembly, first connecting rod is parallel with second connecting rod
It is arranged at intervals.Two the second measurement assembly mounting holes 110 and 120 are symmetricly set on the both sides of second connecting rod 12, two second surveys
The axis of component mounting hole 110,120 is measured to overlap with the theoretical axis of corresponding three-arc.Similarly, two the first measurement assemblies
Mounting hole 130 and 140 is symmetricly set on the both sides of first connecting rod, the axis of two the first measurement assembly mounting holes 130,140 with
The theoretical axis of corresponding first circular arc overlaps.Measuring gage mounting hole 150 is positioned close to the second circular arc one side of first connecting rod,
The axis of measuring gage mounting hole 150 is overlapped with the theoretical axis of the second circular arc.Preferably, the first measurement assembly mounting hole, second
Measurement assembly mounting hole is equipped with bushing 3, as shown in Figure 10, is carried out accurately for the first measurement assembly 4 and the second measurement assembly 10
It is oriented to.Bushing 9 is installed, as shown in figure 9, being accurately oriented to for measuring gage 11 in measuring gage mounting hole 150.
First measurement assembly 4 is identical with the structure of the second measurement assembly 10, as shown in Figures 6 and 7.With the first measurement assembly 4
Exemplified by, as shown in figure 17, the first measurement assembly 4 includes handle 41, lead 42 and first stroke of bar 43.The lower part of lead 42
To be cylindric, it is rotatably arranged in the first measurement assembly mounting hole 130 or 140, as shown in Figure 7.The top of lead 42 is
Cubic.Handle 41 is cricoid square, and downside is fixedly connected with the top surface of lead 42.First stroke of bar 43 be in
" T " shape, including orthogonal first base portion and the first measurement portion, the side on the first base portion and 42 top of lead, which is fixed, to be connected
It connects, the first measurement portion self- steering column 42 extends to the first circular arc of first connecting rod, the first measurement assembly mounting hole 130 or 140
The distance between end face of axis and the first measurement portion is the first radius, as shown in Figure 4.Similarly, the second measurement assembly mounting hole
The distance between end face of the second measurement portion of 110 or 120 axis and the second measurement assembly is the 3rd radius, as shown in Figure 4.
As shown in figure 18, measuring gage 11 includes the 4th mounting portion 112 and measurement cylindrical surface 111, measures the straight of cylindrical surface 111
Footpath is the second radius.4th mounting portion 112 is rotatably arranged in measuring gage mounting hole 150, and measurement cylindrical surface 111 is exposed to pedestal
On 1 top surface, as shown in Figure 5.The axis of measuring gage mounting hole 150 is overlapped with the theoretical axis of the second circular arc of first connecting rod.
When being detected using the contour detecting device of the present invention, by taking first connecting rod as an example, include the following steps：
1) first by the positioning region and first of the first big end hole locating piece of contour detecting device, the first small head bore locating piece
The clean cotton wiped clean of measurement assembly mounting hole.
2) big end hole of first connecting rod and small head bore are separately mounted to the first big end hole locating piece, the first small head bore positions
On part.
3) the first measurement assembly is inserted in one of in the first measurement assembly mounting hole, using handle by the first measurement group
Part rotates one week.If first stroke of bar does not interfere in rotation process with the first circular arc, the first circle of the side is judged
Arc is not loose.If it is necessary, clearance gauge can be placed between the first measurement portion of first stroke of bar and the first circular arc to judge this
Whether the first circular arc of side is excessive less than normal.Otherwise, the first circular arc of the side is loose.
4) the first measurement assembly is placed in another the first measurement assembly mounting hole, using identical method to another
First circular arc of side is detected.
5) the first measurement assembly is removed, measuring gage is mounted in measuring gage mounting hole, measuring gage is rotated one week, if
Measuring gage does not interfere in rotation process with the second circular arc, then judges that the second circular arc of first connecting rod is not loose.Otherwise,
Second circular arc is loose.
4) after measuring, with each working surface of clean cotton wiped clean contour detecting device, oil preservation.
The contour detecting device of the present invention drives a stroke bar rotation that can quickly detect tested connecting rod by measurement assembly
Whether blank entity is loose, and work efficiency is high, and testing cost is low, and entire detection process is convenient and safe；Pedestal is equipped with cylinder
The big end hole locating piece of shape and the small head bore locating piece of hexagon bar shape realize the quick positioning and installation of connecting rod.
The description of the foregoing specific exemplary embodiment to the present invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explain that the certain principles of the present invention and its reality should
With so that those skilled in the art can realize and utilize the present invention a variety of exemplary implementation schemes and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (7)
1. the contour detecting device of a kind of connecting rod, which is characterized in that the contour detecting device includes：
Pedestal, the top surface of the pedestal are equipped with the first big end hole positioning region, the first small head bore positioning region and two first surveys
Component mounting hole is measured, the first big end hole positioning region is mounted in the big end hole of first connecting rod, the first small head bore positioning
Portion is mounted in the small head bore of the first connecting rod；Between the both sides of the big end hole of the first connecting rod and the shaft of first connecting rod
Equipped with the first circular arc, the principal radii of first circular arc is the first radius, the axis of described two first measurement assembly mounting holes
Line is overlapped with the theoretical axis of corresponding first circular arc；And
First measurement assembly, first measurement assembly are rotatably mounted in the first measurement assembly mounting hole, and described first
Measurement assembly includes first stroke of bar, and first stroke of bar is equipped with the first rod-shaped measurement portion, and first measurement portion is described in
First measurement assembly mounting hole extends to first circular arc, and the axis of the first measurement assembly mounting hole is surveyed with described first
The distance between the end face in amount portion is first radius.
2. the contour detecting device of connecting rod according to claim 1, which is characterized in that the big end hole of the first connecting rod with
It is equipped with the second circular arc between first circular arc of one side, the principal radii of second circular arc is the second radius, described first
Radius is different from second radius；Be additionally provided with measuring gage mounting hole on the pedestal, the axis of the measuring gage mounting hole with
The theoretical axis of second circular arc overlaps；The contour detecting device further includes measuring gage, and the measuring gage is rotatably installed in
In the measuring gage mounting hole, the measuring gage is equipped with measurement cylindrical surface, a diameter of second radius on the measurement cylindrical surface.
3. the contour detecting device of connecting rod according to claim 1 or 2, which is characterized in that on the top surface of the pedestal also
Equipped with the second big end hole positioning region, the second small head bore positioning region and two the second measurement assembly mounting holes, second major part
Hole positioning region is mounted in the big end hole of second connecting rod, and the second small head bore positioning region is mounted on the microcephaly of the second connecting rod
In hole；Three-arc, the three-arc are equipped between the both sides of the big end hole of the second connecting rod and the shaft of second connecting rod
Principal radii for the 3rd radius, the reason of the axis of described two second measurement assembly mounting holes and the corresponding three-arc
It is overlapped by axis；
The contour outline measuring set further includes the second measurement assembly, and second measurement assembly is rotatably mounted on second measurement
In component mounting hole, second measurement assembly includes second stroke of bar, and second stroke of bar is equipped with the second rod-shaped measurement portion,
Second measurement portion extends from the second measurement assembly mounting hole to the three-arc, the second measurement assembly installation
The distance between end face of the axis in hole and second measurement portion is the 3rd radius.
4. the contour detecting device of connecting rod according to claim 1 or 2, which is characterized in that first measurement assembly is also
Including lead, the lower part of the lead is inserted into the first measurement assembly mounting hole；First stroke of bar is additionally provided with
One base portion, first base portion is vertical with first measurement portion, and the side on the lead top is consolidated with first base portion
Fixed connection.
5. the contour detecting device of connecting rod according to claim 4, which is characterized in that first measurement assembly further includes
Handle, the handle are fixed on the top surface of the lead.
6. the contour detecting device of connecting rod according to claim 3, which is characterized in that the first measurement assembly installation
Bushing is equipped in hole, the second measurement assembly mounting hole and the measuring gage mounting hole.
7. the contour detecting device of connecting rod according to claim 3, which is characterized in that the first small head bore positioning region and
The second small head bore positioning region is hexagon cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610412107.6A CN105890500B (en) | 2016-06-14 | 2016-06-14 | The contour detecting device of connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610412107.6A CN105890500B (en) | 2016-06-14 | 2016-06-14 | The contour detecting device of connecting rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105890500A CN105890500A (en) | 2016-08-24 |
| CN105890500B true CN105890500B (en) | 2018-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610412107.6A Active CN105890500B (en) | 2016-06-14 | 2016-06-14 | The contour detecting device of connecting rod |
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| CN (1) | CN105890500B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440674B (en) * | 2019-08-29 | 2021-07-13 | 中国航发航空科技股份有限公司 | Detection apparatus for face profile tolerance of director blade passageway face |
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2016
- 2016-06-14 CN CN201610412107.6A patent/CN105890500B/en active Active
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| CN105890500A (en) | 2016-08-24 |
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