CN107917682B - External Deep Hole Straightness Test Device and method - Google Patents
External Deep Hole Straightness Test Device and method Download PDFInfo
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- CN107917682B CN107917682B CN201610902545.0A CN201610902545A CN107917682B CN 107917682 B CN107917682 B CN 107917682B CN 201610902545 A CN201610902545 A CN 201610902545A CN 107917682 B CN107917682 B CN 107917682B
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- end cap
- measurement body
- hole
- deep hole
- light beam
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention belongs to deep hole detection technique fields, relate in particular to external Deep Hole Straightness Test Device and method.Using the present invention, can accurate detected magnitude diameter deep hole straightness.The present invention includes optical transmitting set, left end cap, measurement body, optical receiver etc..In detection process, optical receiver is located at outside deep hole.Measurement body is located inside workpiece, and there is through hole at middle part.The beam diameter that optical transmitting set issues is greater than the diameter of measurement body through hole, and light beam passes through the through hole of measurement body, light spot received on optical receiver.Measurement body is moved along the direction for being parallel to light beam, and energy self-centering does not rotate.Detection method includes the following steps: light beam being allowed successively to pass through left end cap and right end cap centre bore；Pass the beam through measurement body through hole, directive optical receiver；Measurement body is moved along the direction for being parallel to light beam, according to the information of optical receiver, seeks deep hole linear degree.
Description
Technical field
The invention belongs to the technical fields of deep hole axis verticality detection, and in particular to a kind of deep hole linear degree detection dress
It sets.
Technical background
Deep hole machining process is influenced by many factors.Part deep-hole axis is prone to bending or skewness.
Therefore, detection is carried out to the straightness of deep hole axis to be necessary.
Existing Deep Hole Straightness Test Device is only applicable to the deep hole detection of major diameter, is not suitable for Small-deep Hole
Detection.
Summary of the invention
The purpose of the present invention: a kind of detection device and method are provided accurately to detect the straightness of various diameter deep holes.
The present invention adopts the following technical scheme that realization:
External Deep Hole Straightness Test Device, including optical transmitting set, left end cap, measurement body, right end cap, optical receiver,
The parts such as driving device.Measurement body is located inside workpiece.Optical receiver is located at the outside of deep hole.
The optical transmitting set is for emitting optical signal, and optical receiver is for receiving optical signal.Left end cap and right end cap with
The cooperation of deep hole both ends, is provided with small through-hole, and two through-holes are coaxial at center.
There is the through hole of minor diameter at measurement body center.Measurement body is bonded always with inner walls of deep holes, in order to guarantee its fitting, is adopted
With following technical measures: first, measurement body is made by elastic material, and the outer diameter for measuring body can become with the variation of diameter of bore
Change.Second, when measuring body is non-elastic material, using structure identical with collet, i.e., it is provided with slot on measurement body, passed through
The contraction of slot may insure that the outer diameter of measurement body is consistent with the internal diameter in hole.Third, measurement body is by multiple springs and other parts
Assembly, by spring it is flexible make measure body outer diameter it is consistent with the internal diameter in hole.
Driving device moves measurement body in deep hole along the direction for being parallel to light beam.Driving device can be dynamic for forerunner
Bar, universal coupling, rear drive rod, driving device can be located at the front or behind of measurement body.
To prevent from rotating in deep hole in measurement body moving process, universal coupling is used.Preceding drive rod and universal
Joint is fixedly connected, and measurement body, universal coupling are fixedly connected with rear drive rod three, and preceding drive rod is along the side for being parallel to light beam
To movement, but cannot be rotated around the direction for being parallel to light beam；Measurement body is moved along the direction for being parallel to light beam, but cannot be around parallel
It is rotated in the direction of light beam.There are two freedom degrees for universal coupling tool, and universal coupling is when measuring the front of body, preceding drive rod
There is the freedom degree of relative movement with rear drive rod, without rotary freedom, the universal coupling in front is pulled by preceding drive rod, so
Measurement body is pulled by rear drive rod afterwards.When universal coupling is placed on the rear of measurement body, preceding drive rod has phase with rear drive rod
The universal coupling at rear is pushed without rotary freedom by preceding drive rod to mobile freedom degree, then passes through rear drive rod
Push measurement body.
The above are technical solution one, technical solution two introduced below illustrates emphatically the difference of scheme two and scheme one.
In scheme two, driving device is cotton rope.Cotton rope is connect with measurement body, and measurement body is moved along the direction for being parallel to light beam
It is dynamic.Measurement body and deep hole form more than two wedge shape spaces, there is cylindrical roller and spring, cylindrical roller difference in wedge shape space
It contacts with spring, baffle and inner walls of deep holes, is worked using the self-locking principle of bi-directional friction, measurement body cannot be revolved around moving direction
Turn.Specifically refer to patent " circumferential registration laser Deep Hole Straightness Test Device ".
Working principle: when detection device operates, assembling left end cap and right end cap at the both ends of deep hole first, so that it is determined that
The position of its centre bore, two centre bores are coaxial.Optical transmitting set is opened, optical signal is issued, the light beam that optical transmitting set issues is successive
Through-hole at left end cap, right end cap center, adjusts the position of optical receiver, makes illumination in optical receiver centre, light
After transmitter and optical receiver position are adjusted, fixed optical transmitting set removes left end cap and right end cap.It is put into measurement body, makes light
Signal passes through the through-hole of measurement body, directive optical receiver.Measurement body is moved along the direction for being parallel to light beam.When hole straightness precision
Gao Shi, optical receiver can receive steady and sustained optical signal；When hole straightness low precision, optical receiver can received light letter
Number variation is big.According to the information of optical receiver, deep hole linear degree is sought.
In short, the present invention has following innovative point:
1. external Deep Hole Straightness Test Device, it is characterised in that including optical transmitting set 1, measurement body 3, optical receiver 5,
Preceding drive rod 6, universal coupling 7, rear drive rod 8, alignment device；Measurement body 3 be located in workpiece 9, and middle part design have it is small directly
The through hole of diameter；Optical transmitting set 1 and optical receiver 5 are located at the two sides of measurement body 3, and optical receiver 5 is located at the outside of deep hole；Light
The beam diameter that transmitter 1 issues is greater than the diameter of the through hole of measurement body 3, and the light beam that optical transmitting set 1 issues passes through measurement body 3
Through hole, receive complete circular light spot on optical receiver 5；Preceding drive rod 6 is fixedly connected with universal coupling 7, measurement
Body 3, universal coupling 7 are fixedly connected with rear 8 three of drive rod, and preceding drive rod 6 is moved along the direction for being parallel to light beam, but cannot
It is rotated around the direction for being parallel to light beam；Measurement body 3 is moved along the direction for being parallel to light beam, but cannot be around the direction for being parallel to light beam
Rotation.The motion in one dimension of preceding drive rod 6 is guaranteed by the prior art.
2. external Deep Hole Straightness Test Device, it is characterised in that including optical transmitting set 1, measurement body 3, optical receiver 5,
Cotton rope 13, alignment device；Measurement body 3 is located in workpiece 9, and middle part design has the through hole of minor diameter；Optical transmitting set 1 and light connect
The two sides that device 5 is located at measurement body 3 are received, and optical receiver 5 is located at the outside of deep hole；The beam diameter that optical transmitting set 1 issues is greater than
The diameter of the through hole of body 3 is measured, the light beam that optical transmitting set 1 issues passes through the through hole of measurement body 3, receives on optical receiver 5
To complete circular light spot；Cotton rope 13 is connect with measurement body 3, and measurement body 3 is driven by cotton rope 13, is moved along the direction for being parallel to light beam
It is dynamic；Measurement body 3 and deep hole form more than two wedge shape spaces, there is cylindrical roller 11 and spring 12, cylinder rolling in wedge shape space
Son 11 is contacted with baffle 10, spring 12 and inner walls of deep holes respectively, and measurement body 3 cannot be rotated around the direction for being parallel to light beam.One
Maintenance and operation is dynamic to be guaranteed by wedge structure bi-directional friction self-lock mechanism.
3. external Deep Hole Straightness Test Device, it is characterised in that alignment device includes left end cap 2, right end cap 4, left end
Lid 2, right end cap 4 are respectively designed with small through-hole at center, after left end cap 2, right end cap 4 and the cooperation of deep hole both ends, light emitting
The light beam that device 1 issues successively passes through left end cap 2, the through-hole at 4 center of right end cap, and keeps optical transmitting set 1 fixed, unloads left end cap
2, right end cap 4.
4. external Deep Hole Straightness Test Device, it is characterised in that measurement body 3 is bonded always with inner walls of deep holes, measures body
3 outer diameter changes with the variation of deep hole diameter；It measures body 3 to be made by elastic material or non-elastic material, or is multiple springs
With the assembly of other parts；When measuring body 3 is non-elastic material, measures and be provided with slot on body 3, the gap of slot is variable；
When measuring the assembly that body 3 is multiple springs and other parts, spring and other feature contacts, make to measure the outer diameter of body 3 with
The internal diameter in hole is consistent.
5. the detection method of external Deep Hole Straightness Test Device, which is characterized in that method includes the following steps:
A: assembling left end cap 2 and right end cap 4 at the both ends of deep hole, and the light beam for allowing optical transmitting set 1 to issue successively passes through a left side
End cap 2,4 central through hole of right end cap, fixed optical transmitting set 1, remove left end cap 2 and right end cap 4；
B: it is put into measurement body 3, passes the beam through the through hole of measurement body 3, directive optical receiver 5；
C: measurement body 3 is moved along the direction for being parallel to light beam, according to the information of optical receiver 5, seeks deep hole linear degree.
Beneficial effects of the present invention: the first, can detecte the straightness of Small-deep Hole.Detect the straight line of Small-deep Hole
Degree, is always the problem in deep hole machining field.The detection device that inventor designed in the past is only applicable to what detection was relatively large in diameter
Hole.The second, the optical receiver outside that is placed on deep hole, simplifies design, reduces required components, can anti-stop signal in deep hole
It is interior to be shielded.Reduce and a possibility that connecting fault occurs because electric wire stops light.Third, using universal coupling or wedge
Shape structure prevents measurement body from rotating in the detection process.4th, measurement body can be according to deep hole diameter self-centering.
Detailed description of the invention
Fig. 1 is detection device schematic diagram；Fig. 2 is rigid schematic diagram of driving device；Fig. 3 is cotton rope schematic diagram of driving device；
Fig. 4 is the schematic cross-sectional view for measuring body spring assembly.In figure: 1- optical transmitting set, 2- left end cap, 3- measurement body, 4- right end cap,
5- optical receiver, drive rod before 6-, 7- universal coupling, drive rod after 8-, 9- workpiece, 10- baffle, 11- cylindrical roller, 12-
Spring, 13- cotton rope.
Specific embodiment
Following specific embodiments be it is of the invention for illustrating, any restrictions are not done to the present invention.
Embodiment one drives universal coupling by preceding drive rod, makes to measure body movement；
Embodiment two drives measurement body by cotton rope, makes to measure body movement, measurement body has wedge structure.
Claims (3)
1. external Deep Hole Straightness Test Device, it is characterised in that including optical transmitting set (1), measurement body (3), optical receiver
(5), preceding drive rod (6), universal coupling (7), rear drive rod (8), alignment device；Measurement body (3) is located in workpiece (9), and
Design the through hole for having minor diameter in middle part；Optical transmitting set (1) and optical receiver (5) are located at the two sides of measurement body (3), and light-receiving
Device (5) is located at the outside of deep hole；The beam diameter that optical transmitting set (1) issues is greater than the diameter of the through hole of measurement body (3), light hair
The light beam that emitter (1) issues passes through the through hole of measurement body (3), and optical receiver receives complete circular light spot on (5)；Forerunner
Lever (6) is fixedly connected with universal coupling (7), and measurement body (3), universal coupling (7) and rear drive rod (8) three are fixed to be connected
It connects, preceding drive rod (6) is moved along the direction for being parallel to light beam, but cannot be rotated around the direction for being parallel to light beam；Measure body (3) edge
The direction for being parallel to light beam is mobile, but cannot rotate around the direction for being parallel to light beam；Alignment device includes left end cap (2), right end
It covers (4), left end cap (2), right end cap (4) are respectively designed with small through-hole, left end cap (2), right end cap (4) and deep hole at center
After the cooperation of both ends, the light beam that optical transmitting set (1) issues successively passes through left end cap (2), the through-hole at right end cap (4) center, and makes
Optical transmitting set (1) is fixed, unloads left end cap (2), right end cap (4)；Measurement body (3) is bonded always with inner walls of deep holes, is measured body (3)
Outer diameter change with the variation of deep hole diameter；It measures body (3) to be made by elastic material or non-elastic material, or is multiple springs
With the assembly of other parts；When measuring body (3) is non-elastic material, it is provided with slot in measurement body (3), the gap of slot is variable
's；When measuring the assembly that body (3) are multiple springs and other parts, spring and other feature contacts make to measure body (3)
Outer diameter is consistent with deep hole diameter.
2. external Deep Hole Straightness Test Device, it is characterised in that including optical transmitting set (1), measurement body (3), optical receiver
(5), cotton rope (13), alignment device；Measurement body (3) is located in workpiece (9), and middle part design has the through hole of minor diameter；Light hair
Emitter (1) and optical receiver (5) are located at the two sides of measurement body (3), and optical receiver (5) is located at the outside of deep hole；Optical transmitting set
(1) beam diameter issued is greater than the diameter of the through hole of measurement body (3), and the light beam that optical transmitting set (1) issues passes through measurement body
(3) through hole, optical receiver receive complete circular light spot on (5)；Cotton rope (13) is connect with measurement body (3), measures body
(3) it is moved along the direction for being parallel to light beam；Measurement body (3) and deep hole form more than two wedge shape spaces, have in wedge shape space
Cylindrical roller (11) and spring (12), cylindrical roller (11) are contacted with baffle (10), spring (12) and inner walls of deep holes respectively, measurement
Body (3) cannot be rotated around the direction for being parallel to light beam；Alignment device includes left end cap (2), right end cap (4), left end cap (2), the right side
End cap (4) is respectively designed with small through-hole at center, after left end cap (2), right end cap (4) and the cooperation of deep hole both ends, light emitting
The light beam that device (1) issues successively passes through left end cap (2), the through-hole at right end cap (4) center, and keeps optical transmitting set (1) fixed, unloads
Lower left end cap (2), right end cap (4)；Measurement body (3) is bonded always with inner walls of deep holes, measures the outer diameter of body (3) with deep hole diameter
Change and changes；It measures body (3) to be made by elastic material or non-elastic material, or is the combination of multiple springs and other parts
Body；When measuring body (3) is non-elastic material, it is provided with slot in measurement body (3), the gap of slot is variable；When measurement body (3) is
When the assembly of multiple springs and other parts, spring and other feature contacts make the outer diameter and deep hole diameter one that measure body (3)
It causes.
3. according to claim 1 or the detection method of external Deep Hole Straightness Test Device as claimed in claim 2, feature
It is, method includes the following steps:
A: assembling left end cap (2) and right end cap (4) at the both ends of deep hole, and the light beam for allowing optical transmitting set (1) to issue successively passes through
Left end cap (2), right end cap (4) central through hole, fixed optical transmitting set (1), remove left end cap (2) and right end cap (4)；
B: being put into measurement body (3), passes the beam through the through hole of measurement body (3), directive optical receiver (5)；
C: measurement body (3) is moved along the direction for being parallel to light beam, according to the information of optical receiver (5), seeks deep hole linear degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610902545.0A CN107917682B (en) | 2016-10-10 | 2016-10-10 | External Deep Hole Straightness Test Device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610902545.0A CN107917682B (en) | 2016-10-10 | 2016-10-10 | External Deep Hole Straightness Test Device and method |
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| Publication Number | Publication Date |
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| CN107917682A CN107917682A (en) | 2018-04-17 |
| CN107917682B true CN107917682B (en) | 2019-06-25 |
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| CN108940754B (en) * | 2018-06-25 | 2020-05-12 | 烽火通信科技股份有限公司 | Centering method and device for optical fiber coating die |
| CN109870124A (en) * | 2019-01-09 | 2019-06-11 | 重庆理工大学 | A kind of pipe part inner hole linearity testing apparatus |
| CN110231001B (en) * | 2019-06-20 | 2022-01-28 | 中北大学 | Optical aperture detection device |
| CN110231000B (en) * | 2019-06-20 | 2023-12-15 | 中北大学 | Hole detection method |
| CN110231002B (en) * | 2019-06-20 | 2022-03-08 | 中北大学 | Horizontal hole detector |
| CN112648937B (en) * | 2019-10-13 | 2023-01-06 | 中北大学 | Hole detection device with anti-rotation mechanism and detection method |
| CN110986831B (en) * | 2019-12-06 | 2021-09-14 | 深圳供电局有限公司 | Cable straightness detection device and detection method |
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| GB1420701A (en) * | 1973-11-23 | 1976-01-14 | Ibm Uk | Optical alignment apparatus |
| CN102305604B (en) * | 2011-08-03 | 2013-08-21 | 上海电气核电设备有限公司 | Laser adjustable multipurpose measuring device and measuring method thereof |
| CN102901469A (en) * | 2012-10-23 | 2013-01-30 | 马鞍山马钢设备安装工程有限公司 | Device and method for measuring coaxiality of trunnions of converter backing ring |
| JP6026925B2 (en) * | 2013-03-12 | 2016-11-16 | 株式会社Ｓｃｒｅｅｎホールディングス | Printing apparatus and arrangement position adjusting method thereof |
| CN103308006B (en) * | 2013-06-19 | 2016-04-27 | 深圳技师学院 | A kind of guide rail calibration, detection method |
| CN103868476B (en) * | 2014-03-17 | 2017-01-25 | 四川红光汽车机电有限公司 | Photoelectric nondestructive testing-based tube inner hole straightness automatic test system and test method |
| CN104165603B (en) * | 2014-07-24 | 2016-08-17 | 中北大学 | A kind of single laser wireless Deep Hole Straightness Test Device of list PSD |
| CN105403179B (en) * | 2015-11-21 | 2018-01-02 | 中北大学 | Ultrasonic deep hole linear degree detection method and device |
| CN205448996U (en) * | 2016-03-08 | 2016-08-10 | 江南造船(集团)有限责任公司 | Piping axiality detection device |
| CN206450188U (en) * | 2016-10-10 | 2017-08-29 | 中北大学 | External Deep Hole Straightness Test Device |
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