CN205027339U - Deep hole straightness accuracy detection device based on ultrasonic thickness measurement appearance - Google Patents
Deep hole straightness accuracy detection device based on ultrasonic thickness measurement appearance Download PDFInfo
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- CN205027339U CN205027339U CN201520817406.9U CN201520817406U CN205027339U CN 205027339 U CN205027339 U CN 205027339U CN 201520817406 U CN201520817406 U CN 201520817406U CN 205027339 U CN205027339 U CN 205027339U
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- workpiece
- testing stand
- guide rail
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Abstract
Deep hole straightness accuracy detection device based on ultrasonic thickness measurement appearance, its characterized in that include test section, work piece removal subtotal work piece position detection part branch. The test section include testing stand, ultrasonic thickness measurement appearance probe, depth micrometer, reference block, the work piece remove the part including work piece, anchor clamps, guide rail, the work piece clamping is on anchor clamps, on the guide rail was arranged in to anchor clamps, time measuring was examined to the work piece position, a laser beam 2 that light source 1 sent shines on facula position mark 13, no. Two laser beams 7 that no. Two light sources 8 sent shine on facula position mark 2 15, be decorated with a plurality of circles on work piece excircle surface. The beneficial effect of the utility model: first, as to detect less internal diameter deep hole, the second, can get rid of self error of outward appearance, it is high to detect the precision, third, laser positioning operation convenience, the fourth, can guarantee that 4 measurement stations are located the coplanar.
Description
Technical field
The utility model belongs to the technical field that deep hole axis verticality detects, and particularly based on the Deep Hole Straightness Test Device of supersonic thickness meter, this is a kind of deep hole linear degree ultrasound wave multipoint detection device considering wall thickness and surfaces externally and internally error.
Background technology
The detection method of deep hole axis verticality has surveys Wall-Thickness Method, laser optical method, gauge mensuration, armed lever mensuration, telescope mensuration etc., these methods or do not consider the impact of Workpiece internal-external circle surface quality on measurement result, or be subject to the too little restriction in aperture and can not be used for measuring the too small deep hole workpiece in aperture.
The method that existing deep hole axis verticality detects is mostly on a deep hole cross section, measure the coordinate of three points to calculate the center of circle in respective aperture cross section, due to the condition of present deep hole processing and the restriction of technology, the inside surface actual conditions of deep-hole parts can not be the faces of cylinder of standard, namely cross section, hole is not the circle of standard, so only measure three points calculate the center of circle, method error and accidental error excessive.
The method that existing deep hole axis verticality detects is mostly measure in hole, is difficult to observation and controls, so measured point can not ensure on same deep hole cross section, thus cause measurement result inaccurate due to situation in hole.In addition, only utilize supersonic thickness meter to record wall thickness, remove estimation deep hole axis verticality according to Wall-Thickness Difference, there is original reason error.Constant for wall thickness, and the part of deep hole axis bending, adopt said method deep hole axis may be mistaken for straight line.
Summary of the invention
The purpose of this utility model: to be limited by deep-hole parts internal diameter little in order to solve existing deep hole axis verticality detection method, " 3 mensurations " accidental error is large, institute's measuring point can not ensure in the first-class problem in same deep hole cross section, there is provided a kind of to detect from deep-hole parts outer wall, can ensure that institute's measuring point is on same cross section, and the deep hole linear degree ultrasound wave multipoint detection device of energy method for removing error, reduction accidental error.This programme also solves the fundamental problems existing for straightness error in the wall thickness estimation hole in the hole only measured by supersonic thickness meter.
The utility model adopts following technical scheme to realize:
Based on the Deep Hole Straightness Test Device of supersonic thickness meter, it is characterized in that comprising detecting portion, workpiece movable part and location of workpiece detecting portion, described detecting portion comprises testing stand, ultrasonic thickness meter probe, micrometric depth gauge and reference block; Described workpiece movable part comprises fixture, spring shim, hex-head screw and guide rail; Location of workpiece detecting portion comprises a light source, No. two light sources, spot location mark one, spot location mark two, fixture, guide rail, spring shims.
Described testing stand is a square plate, and there is a circular hole that can pass through for workpiece at center, and dull and stereotyped one jiao has the breach that can pass through for fixture; Reference block is fixed on testing stand, and micrometric depth gauge is fixed on reference block, and ultrasonic thickness meter probe is fixed on the sounding rod end of micrometric depth gauge.
Described fixture left end has the bossing preventing workpiece from moving axially, and right-hand member has the threaded hole being convenient to clamping workpiece, hex-head screw by the threaded hole of spring shim and fixture right-hand member by clamping workpiece on fixture; The V-shaped groove with guide rail contact is had on the downside of fixture.
A described light source, No. two light sources are LASER Light Source, and a light source and No. two light sources maintain static all the time, and the laser beam irradiation that light source sends is on spot location mark one; No. two laser beam irradiations that No. two light sources send are on spot location mark two.
Guide rail is coordinated with the V-shaped groove of fixture by two sides, and the screw of employing prior art passes through the threaded hole of fixture right-hand member can the position of stationary fixture.
Spot location mark one should be sticked before measuring in workpiece left side, stick spot location mark two in workpiece right side; Spot location mark one and spot location mark two on locus circumferentially at a distance of 90 °.During clamping workpiece, the projection contacts of workpiece and fixture left end, hex-head screw passes the threaded hole of spring shim and fixture right-hand member, by Workpiece clamping on fixture.After clamping workpiece, a light source until a laser beam irradiation is on spot location mark one, and is fixed in the position of an adjustment light source; The position of adjustment No. two light sources until, on No. two laser beam irradiations spot location mark two on workpiece, and fix No. two light sources.
Described testing stand, a light source and No. two light sources are all fixed in same absolute coordinate system, and true origin is positioned at the home position of testing stand circular hole.Thus before measuring, the coordinate of four reference blocks on testing stand and a light source, No. two light sources can be determined.
Workpiece on clamping to fixture before, by workpiece n decile vertically, draw the circle of 360 ° at Along ent place along periphery, axially bored line is perpendicular to the plane at circle place, and during measurement, 4 ultrasonic measurement heads are positioned at the plane at round place.
The utility model utilizes the reader of computing machine acquired by the reading on 4 micrometric depth gauges and 4 ultrasonic thickness meter probe result of detections to calculate the coordinate of 4 points on deep hole cross section, and then in these 4 points, optional three points calculate the center of circle in cross section, hole.Owing to selecting the array mode of three points to have four kinds in 4 points, therefore each deep hole cross section can calculate four central coordinate of circle.Then the center of circle of the calculating gained on all deep hole cross sections is all projected in the plane at testing stand place in absolute coordinate system, again matching circle all subpoints are all enclosed circle in or justify on, the diameter of the smallest cylinder of institute's matching is institute's sounding hole axis verticality.
The utility model main parts size of being correlated with has: testing stand, reference block, micrometric depth gauge, ultrasonic thickness meter probe, a light source, No. two light sources, workpiece, fixture, guide rail, hex-head screw, computing machines.
In sum, innovative point of the present utility model is as follows:
Based on the Deep Hole Straightness Test Device of supersonic thickness meter, comprise the ultrasonic Deep Hole Straightness Test Device counting surface error, the ultrasonic Deep Hole Straightness Test Device that it is characterized in that counting surface error comprises detecting portion, workpiece movable part and location of workpiece detecting portion, described detecting portion comprises testing stand 9, ultrasonic thickness meter probe 10, micrometric depth gauge 11, reference block 12, testing stand 9 is fixed on transfixion in absolute coordinate system, and the initial point of absolute coordinate system is positioned at the home position of circular hole in the middle of testing stand; Ultrasonic thickness meter probe 10 is fixed on the sounding rod end of micrometric depth gauge 11; Reference block 12 is fixed on testing stand (9), and micrometric depth gauge 11 is fixed on reference block; Described workpiece movable part comprises workpiece 4, fixture 13, guide rail 14, workpiece 4 clamping is on fixture 13, and fixture 13 is placed on guide rail 14, and can move along guide rail, guide rail 14 is fixed on the below of testing stand 9 and through breach below testing stand 9, institute surveys the circular hole of workpiece 4 by testing stand 9 centre; Location of workpiece detecting portion comprises: a light source 1, No. two light sources 8, laser beam 2, No. two laser beam 7, spot location mark 1, spot location mark 2 15, a light source 1 and No. two light sources 8 are LASER Light Source, and the laser beam 2 that light source 1 sends is radiated on spot location mark 1; No. two laser beam 7 that No. two light sources send are radiated on spot location mark 2 15; Be decorated with the circle of multiple 360 ° on excircle of workpiece surface, axially bored line is perpendicular to the plane at circle place, and circle is by workpiece 4 n decile vertically, and during measurement, 4 ultrasonic thickness meter probes 10 are coplanar with corresponding circle.
The step of detection method is as follows: the first step, is placed in by workpiece on fixture; Second step, travelling workpiece also to make on workpiece first drawn circle and four ultrasonic thickness meter probes 10 coplanar, meanwhile, ensures that a laser beam 2 that a light source 1 sends is radiated at spot location and marks on one 3; No. two laser beam 7 that No. two light sources send are radiated on spot location mark 2 15; 3rd step, measures and records workpiece 4 place wall thickness: H
11, H
12, H
13, H
14; Measure the reading that also registered depth milscale is corresponding: L
11, L
12, L
13, L
14; 4 some A corresponding on workpiece hole wall can be determined
11, A
12, A
13, A
14coordinate; 4th step, with an A
11, A
12, A
13calculate the center of circle O in deep hole cross section
11, with an A
11, A
12, A
14calculate the center of circle O in deep hole cross section
12, with an A
11, A
13, A
14calculate the center of circle O in deep hole cross section
13, with an A
12, A
13, A
14calculate the center of circle O in deep hole cross section
14; 5th step, tries to achieve the center of circle in drawn i-th (i=1,2,3...n+1) deep hole cross section, individual circle place: O with reference to above-mentioned steps
i1, O
i2, O
i3, O
i4; 6th step, asks one can contain O
i1, O
i2, O
i3, O
i4and the cylinder that diameter is minimum, try to achieve the deep hole linear degree of surveyed workpiece 4 according to the diameter of this cylinder, utilize MATLAB to carry out matching.
The beneficial effects of the utility model: the deep hole axis verticality that less internal diameter the first, can be detected; The second, the impact of appearance self error can be got rid of.Three, the utility model compared with prior art, about improves precision 4 times.Four, the utility model is by the position of laser determination workpiece, and the method phase specific efficiencies such as dial gauge are high, easy to operate with adopting.First, the data that the utility model detects comprise two parts, i.e. the topographical information of wall thickness and deep-hole parts outside surface and inside surface.The deep hole linear degree that the utility model is tried to achieve has more science.Secondly, during each measurement, whole device remains static, and can avoid shaking the measuring error caused in measuring process; From deep-hole parts, mural painting circle detects, and can ensure that institute's measuring point is on same cross section.Finally, determine a center of circle by three, cross section point in prior art, ask deep hole axis verticality according to the center of circle in each cross section.The utility model each deep hole cross section calculates four possible centers of circle to determine axis verticality, can method for removing error, reduce accidental error, result is more accurate.
Accompanying drawing explanation
Fig. 1 is Facad structure schematic diagram.
Fig. 2 is side structure schematic diagram.
Fig. 3 is workpiece laser location schematic diagram.
In figure: 1-light source, 2-laser beam, 3-spot location mark one, 4-workpiece, 5-spring shim, 6-hex-head screw, 7-No. bis-laser beam, 8-No. bis-light sources, 9-testing stand, 10-ultrasonic thickness meter probe, 11-micrometric depth gauge, 12-reference block, 13-fixture, 14-guide rail, 15-spot location mark two.
Embodiment
Be below embodiments more of the present utility model, it is of the present utility model that these embodiments are used to explanation, do not do any restriction to the utility model.
As shown in Figure 1, the utility model testing stand 9 is fixed, workpiece 4 feeding.
The utility model comprises testing stand 9, reference block 12, micrometric depth gauge 11, ultrasonic thickness meter probe 10, light source 1, No. two light sources 8, workpiece 4, fixture 13, guide rail 14, hex-head screw 6, computing machine and spanners.
Workpiece there are spot location mark 1, spot location mark 2 15, measure the circle of section picture; Circumferentially to stick spot location mark 1 and spot location mark 2 15 respectively at a distance of 90 ° of places at two, the left and right of workpiece 4 end face before measuring, on workpiece, then draw n+1 circle vertically, workpiece is divided into vertically the part that n is isometric.
Workpiece 4 left end is shifted onto the high spot of fixture 13 left end, then by hex-head screw 6 threaded hole through spring shim 5 and fixture 13 right-hand member, with spanner, hex-head screw is tightened, until by workpiece 4 firmly clamping on fixture 13.
Workpiece 4 clamping on fixture 13 after, be placed on guide rail 14 with fixture 13, can move along guide rail direction.
Testing stand 9 and guide rail 14 all maintain static, and guide rail 14 is positioned at immediately below testing stand 9 breach, the plane being perpendicular at guide rail 14 and testing stand 9 place.Distance between guide rail 14 and testing stand 9 should ensure that the workpiece 4 of clamping on fixture 13 can pass through by the circular hole in the middle of testing stand 9 smoothly.
After installing testing stand 9 and guide rail 14, along guide rail direction travelling workpiece 4, until the single line of picture on workpiece is positioned at the plane at 4 ultrasonic measurement head places just, then workpiece 4 and fixture 13 are maintained static.
A light source 1 until a laser beam 2 is radiated on the spot location mark 1 on workpiece, and is fixed in the position of an adjustment light source 1; No. No. two light sources 8 until No. two laser beam 7 are radiated on the spot location mark 2 15 on workpiece, and are fixed in the position of adjustment No. two light sources 8.
After fixing workpiece 4, light source 1, No. two light sources 8, rotate 4 micrometric depth gauges 11 until its sounding rod end 4 ultrasonic thickness meter probes 10 fixing all be close to the periphery of workpiece 4, and meet these 4 ultrasonic thickness meter probes 10 and be all positioned on the same circle drawn by workpiece 4 periphery with the contact point of periphery; Then measure again after fixation workpiece 4 and ultrasonic thickness meter probe 10.Observe and record the reading of each micrometric depth gauge 11 and the reading acquired by ultrasonic thickness meter probe result of detection.
After measuring the data on the cross section of circle drawn by first on workpiece 4, cycle four micrometric depth gauges allow four ultrasonic thickness meter probes all leave outer surface of workpiece; To testing stand 9 direction travelling workpiece 4 until when next one circle drawn on workpiece is all in same plane with four ultrasonic thickness meter probes, a laser beam irradiation to spot location mark one mark on two with No. two laser beam irradiations to spot location, the position of workpiece is fixed, rotate 4 micrometric depth gauges 11 again until 4 ultrasonic thickness meter probes 10 of its end are all close to the outer wall of workpiece, observe and the reading of registered depth milscale 11 and the reading acquired by ultrasonic thickness meter probe 10 result of detection corresponding to each micrometric depth gauge 11.
Described in epimere, until measure and record the data at workpiece 4 periphery all picture circular sections place.On each cross section survey data, through data processing, draw 4 centers of circle in each deep hole cross section; Then the center of circle in the deep hole cross section at all picture circular sections place on workpiece 4 periphery is all projected in the plane at testing stand place, and draft the minimum circle of diameter by these subpoint circles in circle or on justifying, this diameter of a circle can be considered the axis verticality of surveyed workpiece 4.
Described in epimere, MATLAB specifically can be utilized to carry out matching, thus try to achieve the axis verticality of institute's sounding hole part.
Claims (1)
1. based on the Deep Hole Straightness Test Device of supersonic thickness meter, comprise detecting portion, workpiece movable part and location of workpiece detecting portion, it is characterized in that described detecting portion comprises testing stand (9), ultrasonic thickness meter probe (10), micrometric depth gauge (11), reference block (12), testing stand (9) is fixed on transfixion in absolute coordinate system, and the initial point of absolute coordinate system is positioned at the home position of circular hole in the middle of testing stand; Ultrasonic thickness meter probe (10) is fixed on the sounding rod end of micrometric depth gauge (11); Reference block (12) is fixed on testing stand (9), and micrometric depth gauge (11) is fixed on reference block; Described workpiece movable part comprises workpiece (4), fixture (13), guide rail (14), workpiece (4) clamping is on fixture (13), fixture (13) is placed on guide rail (14), and can move along guide rail, guide rail (14) be fixed on testing stand (9) below and through testing stand (9) below breach, institute survey workpiece (4) by testing stand (9) centre circular hole; Location of workpiece detecting portion comprises: light source (1), No. two light sources (8), laser beam (2), No. two laser beam (7), spot location mark one (3), spot location mark two (15), a light source (1) and No. two light sources (8) are LASER Light Source, and the laser beam (2) that light source (1) sends is radiated on spot location mark one (3); No. two laser beam (7) that No. two light sources send are radiated on spot location mark two (15); Be decorated with the circle of multiple 360 ° on excircle of workpiece surface, axially bored line is perpendicular to the plane at circle place, and circle is by workpiece (4) n decile vertically, and during measurement, 4 ultrasonic thickness meter probes (10) are coplanar with corresponding circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520817406.9U CN205027339U (en) | 2015-10-12 | 2015-10-12 | Deep hole straightness accuracy detection device based on ultrasonic thickness measurement appearance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520817406.9U CN205027339U (en) | 2015-10-12 | 2015-10-12 | Deep hole straightness accuracy detection device based on ultrasonic thickness measurement appearance |
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| Publication Number | Publication Date |
|---|---|
| CN205027339U true CN205027339U (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520817406.9U Expired - Fee Related CN205027339U (en) | 2015-10-12 | 2015-10-12 | Deep hole straightness accuracy detection device based on ultrasonic thickness measurement appearance |
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| CN (1) | CN205027339U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426544A (en) * | 2018-04-10 | 2018-08-21 | 西安工业大学 | High-effective deep hole deflection on-line measurement device and measurement method |
| CN116625238A (en) * | 2023-07-19 | 2023-08-22 | 山东鲁联机械制造有限公司 | Machining detection device and method for mechanical component |
-
2015
- 2015-10-12 CN CN201520817406.9U patent/CN205027339U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426544A (en) * | 2018-04-10 | 2018-08-21 | 西安工业大学 | High-effective deep hole deflection on-line measurement device and measurement method |
| CN116625238A (en) * | 2023-07-19 | 2023-08-22 | 山东鲁联机械制造有限公司 | Machining detection device and method for mechanical component |
| CN116625238B (en) * | 2023-07-19 | 2023-09-26 | 山东鲁联机械制造有限公司 | Machining detection device and method for mechanical component |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20181012 |
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| CF01 | Termination of patent right due to non-payment of annual fee |