CN103292669A - Center distance gauge for non-through holes - Google Patents
Center distance gauge for non-through holes Download PDFInfo
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- CN103292669A CN103292669A CN2013102345026A CN201310234502A CN103292669A CN 103292669 A CN103292669 A CN 103292669A CN 2013102345026 A CN2013102345026 A CN 2013102345026A CN 201310234502 A CN201310234502 A CN 201310234502A CN 103292669 A CN103292669 A CN 103292669A
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Abstract
The invention discloses a center distance gauge for non-through holes. The center distance gauge for the non-through holes comprises a detection support, a positioning shaft and a measuring shaft; a positioning auxiliary hole and a measuring auxiliary hole which are respectively approximately coaxial with a positioning hole and a detection hole which are formed in a worpiece to be detected are formed in the detection support; the positioning shaft is matched with the positioning hole and the positioning auxiliary hole; the measuring shaft is used for inserting into the measuring auxiliary hole and the measuring hole for detection; the measuring shaft comprises a measuring shaft go end and a measuring shaft not-go end; and the sizes of the measuring shaft go end and the measuring shaft not-go end need to satisfy the following formula. The center distance gauge for the non-through holes has the advantages of being simple in structure, being capable of improving the detection efficiency of center distance of a large pin hole and a small pin hole of the workpiece to be detected, being capable of rapidly achieving full measurement of the workpiece, reducing operative labor intensity of workers meanwhile, avoiding batch scrap risks caused by spot detection of three coordinates and reducing detection costs.
Description
Technical field
The present invention relates to a kind of cubing, more precisely, relate to a kind of cubing for detection of non-through hole centre distance.
Background technology
Centre distance for perpendicular or parallel non-through hole often requires than higher in the tooth through-drive of wheel box or speed reduction unit, if distance control is bad, can influences gear meshing, thereby influence the stationarity of transmission, and then influence the quality of product; In addition, in some assembly of matching requirements is arranged, also need the centre distance of perpendicular or parallel non-through hole is controlled the bad assembling that can influence parts of quality control etc.In present processing detects, to the detection of the centre distance of perpendicular or parallel non-through hole lack one efficiently, testing tool and method easily, make that the detection efficiency of centre distance is low, flow process is loaded down with trivial details.
At present the detection to the centre distance of perpendicular or parallel non-through hole is to adopt the three-dimensional method to inspect by random samples.At first be to roll off the production line after measured workpiece machines, manually with trolley workpiece delivered to sensing chamber, workpiece is lifted on the detection platform, the testing staff with three-dimensional to workpiece sensing.Detect with the three-dimensional method, not only labour intensity is big, detects more loaded down with trivial detailsly, has also taken simultaneously this valuable resource of three-dimensional.In addition, three-dimensional can only be inspected by random samples, when detecting substandard product, substandard product in batches just very likely occurred.
Summary of the invention
The present invention provides a kind of centre distance cubing of non-through hole in order to solve problems of the prior art.
In order to realize above-mentioned purpose, technical scheme of the present invention is: a kind of centre distance cubing of non-through hole:
Comprise the detection support, described detection support be provided with respectively with workpiece to be detected on pilot hole, detect approximately axial location, hole via hole, measure via hole;
Also comprise for pilot hole, the location locating shaft that matches of via hole, also comprise the measurement axle that detects for insertion measurement via hole, measured hole, described measurement axle comprises that one measures axle go side and a measurement axle not-go-end, the size L of described measurement axle measure portion
DetectSatisfy following formula:
Wherein: L
The gap=D
Prop up 1-d
The locationD
1Be measured workpiece pilot hole diameter; L
Pitch-rowCentre distance for measured workpiece pilot hole and measured hole; D
2Be measured workpiece measured hole diameter; d
The locationBe the locating shaft diameter; L
The gapBe locating shaft and the gap of detecting support location via hole; L
SupportFor detecting support location via hole and the centre distance of measuring via hole; D
Prop up 1For detecting the diameter of support location via hole; D
Prop up 2Measure the diameter of via hole for detecting support; d
DetectFor measuring the base diameter of axle measure portion;
The described size L that measures the axle not-go-end
The go side, measure the size L of axle go side
Not-go-endSatisfy following formula:
Wherein: IS represents the lower deviation of corresponding component size, and ES represents the upper deviation of corresponding component size.
Preferably, the described axle go side of measuring lays respectively at the two ends of measuring axle with measurement axle not-go-end.
Preferably, described measurement axle not-go-end is shorter than measuring the axle go side.
Preferably, the position of described measurement axle between measurement axle go side and a measurement not-go-end also is provided with and measures a handle.
Preferably, described measurement axle handle is provided with anti-skidding portion.
Preferably, described measurement axle go side and/to measure an axle not-go-end be cylindric.
Preferably, the termination of described locating shaft also is provided with the locating shaft handle.
Preferably, described locating shaft handle also is provided with anti-skidding portion.
Preferably, between locating shaft and locating shaft handle, also be provided with the radial protrusion that a circle is used for and detects the bracket end face cooperation.
Preferably, described locating shaft and pilot hole clearance fit.
Preferably, described locating shaft and detection support location via hole clearance fit or interference fit.
Description of drawings
Fig. 1 shows the structural representation of locating shaft of the present invention.
Fig. 2 shows the use constitutional diagram of cubing of the present invention.
Fig. 3 shows the structural representation that the present invention detects support.
Fig. 4 shows the synoptic diagram of dimension chain of the present invention.
Embodiment
For the technical matters that the present invention is solved, the technical scheme of employing, the technique effect easy to understand of obtaining, the accompanying drawing below in conjunction with concrete is described further the specific embodiment of the present invention.
The invention provides a kind of centre distance cubing of non-through hole, the present invention is that example describes with certain measured workpiece, the parameter of certain measured workpiece: big pin-and-hole diameter is
The diameter of little pin-and-hole is
Pitch-row is 100 ± 0.08.
With reference to figure 1, Fig. 2, measured workpiece 3 of the present invention, big pin-and-hole is a vertical non-phase perforation with little pin-and-hole, be that pilot hole positions with big pin-and-hole here, be that measured hole is measured with little pin-and-hole, namely with big pin-and-hole as pilot hole, with little pin-and-hole as measured hole; Certainly general designer knows, also can position with little pin-and-hole, measures with big pin-and-hole.But big pin-and-hole in the above in the present embodiment, and little pin-and-hole is in the side, with the location of the inconvenient workpiece of little pin-and-hole.
Cubing of the present invention comprises and detects support 4, and is used for and locating shaft 13 that pilot hole matches, also comprises for inserting the measurement axle 2 that measured hole detects.With reference to figure 3, detect support 4 be provided with respectively with workpiece to be detected on pilot hole, detect approximately axial location, hole via hole 420, measure via hole 410; In order to cooperate with workpiece to be detected, the L-shaped structure of detection support of the present invention or angle bar structure namely comprise a horizontal segment 42 and a vertical section 41, and location via hole 420, measurement via hole 410 are separately positioned on horizontal segment 42, the vertical section 41.
Described measurement axle comprises that one measures axle go side 23 and a measurement axle not-go-end 24.Locating shaft 13 is inserted in the pilot hole of location via hole 420 and measured workpiece 3, preferably makes locating shaft 13 and the pilot hole clearance fit of locating via hole 420 and measured workpiece, for example the diameter of locating shaft 13 can be made
When measuring, left side and the locating shaft 13 that detects the location via hole 420 of support fitted tightly, namely with hand steered support with support to the right by dead, can eliminate locating shaft 13 like this and locate the gap error of via hole 420.
Further, also can make locating shaft 13 and location via hole 420 adopt transition or interference fit, elimination locating shaft 13 that like this can be artificial and the gap of location via hole 420, certainly still adopt clearance fit between locating shaft 13 and the measured workpiece pilot hole, the diameter of locating shaft still can be made
The location via hole 420 that detects support manufactures according to transition or interference fit with locating shaft.The handle of locating shaft can be used as locating shaft and the common handle that detects support like this.
Further, for the precision that makes measurement is higher, also can make a plurality of locating shafts, diameter and the pilot hole of locating shaft divided into groups, be that example describes locating shaft is divided into five groups here, is about to locating shaft and is divided into
In use elder generation is inserted in the hole positions with maximum locating shaft, as not passing through, then change the locating shaft location of a less size into, can be smoothly by the location via hole of detection support and the big pin-and-hole (pilot hole) of measured workpiece up to certain locating shaft, the gap minimum of locating shaft and pilot hole then is described, measuring accuracy is also the highest.
This locating shaft further preferably also is provided with a shaft shoulder 14, and this shaft shoulder 14 can be regarded the circle radial protrusion that locating shaft 13 terminations arrange as.The big pin-and-hole end face of the shaft shoulder 14 of locating shaft and front axle (detecting the end face at via hole place, support location) is fitted, and the location of finishing locating shaft does not need the operative employee holding up locating shaft after making locating shaft insert big pin-and-hole.Require the flatness of the shaft shoulder and the top and bottom of detecting support all less than 0.02mm here, simultaneously with the verticality of the locating surface of locating shaft less than 0.03mm.
Operative employee's operation for convenience, the termination of this locating shaft also is provided with a locating shaft handle 11, and handle through annular knurl on the surface of locating shaft handle 11, namely can regard an anti-skidding portion as.On this locating shaft handle 11 locating shaft can also be set and beat yard face 12, be used for printing the numbering of cubing, convenient management and censorship regularly.
Referring to Fig. 2, reflected structure and the using method of measuring axle more intuitively, measure axle go side 23 and measure axle not-go-end 24 and be positioned at the two ends of measuring axle, make to measure axle go side 23 and measure an axle not-go-end 24 to be structure as a whole, be convenient to operation.Further, the middle part of measuring axle is provided with measures axle handle 21, and this is measured axle handle 21 and is measuring the axle go side and measuring between the axle not-go-end.The same with locating shaft handle 11, it is preferred through the annular knurl processing to measure axle handle 21, namely can regard an anti-skidding portion as.The measurement axle is beaten a sign indicating number face 22 and is arranged on this measurement axle handle 21, is used for printing corresponding cubing numbering, convenient management and regular censorship.Measuring axle go side 23 and measuring axle not-go-end 24 is to get by Process Dimension Chain Calculating, requires the go side to enter here when detecting, and not-go-end can not enter judges that just workpiece processing is qualified.
Measure axle go side 23 and measure the size of axle not-go-end 24 by Process Dimension Chain Calculating, process dimension chain as shown in Figure 4:
Wherein: D
1Be the big pin-and-hole diameter of measured workpiece;
L
Pitch-rowBe the big pin-and-hole of measured workpiece and little pin-and-hole centre distance;
D
2Be the little pin-and-hole diameter of measured workpiece;
d
The locationBe the locating shaft diameter;
L
The gapBe the maximal clearance of locating shaft with the location via hole, namely diameter is poor;
L
SupportFor detecting the centre distance of support macropore and aperture;
D
Prop up 1For detecting the diameter of support macropore;
D
Prop up 2For detecting the diameter of support aperture;
d
DetectFor measuring shaft diameter;
Because the detection support is the aid that detects, we can measure the calculating of carrying out process dimension chain again by each physical size that three-dimensional or the higher detection means of precision will detect support and locating shaft, so just avoid detecting the manufacturing tolerance of support, improved the precision of whole detection.
Here, D
Prop up 1=Φ 47.028, D
Prop up 2=Φ 18.016, L
Support=100.013, d
The location=Φ 46.996,
L
Pitch-row=100 ± 0.08;
By calculating L
The gap=D
Prop up 1-d
The location=47.028-46.996=0.032mm.
In the above-mentioned dimension chain, because pitch-row is element to be measured, so
Closed-loop is: L
Pitch-row
Increasing ring is:
L
Supportd
Detect
Subtracting ring is:
So measure the basic size of axle measure portion be:
The upper deviation of measuring axle is ES
D detects, lower deviation is IS
D detects, basic size adds the lower deviation of measuring axle for measuring the go side of axle, basic size adds that the upper deviation of measuring axle is for measuring the not-go-end of axle.
According to the calculating of process dimension chain,
IS
D detects=-0.0585;
ES
D detects=0.08;
So measure the size L of axle go side
The go side=d
Detect+ IS
D detects=17.979-0.0585=17.9205mm;
Measure the size L of axle not-go-end
Not-go-end=d
Detect+ ES
D detects=17.979+0.08=18.059mm.
In an embodiment of the present invention, the parameter with reference to above-mentioned obtains d
DetectNumerical value be 17.979mm, this is the basic size of measuring the axle go side and measuring the axle not-go-end.This basic size adds the size that lower deviation can obtain measuring a go side 23, is calculated as 17.9205mm; This basic size adds the size that the upper deviation can obtain measuring a not-go-end 24, is calculated as 18.059mm.Consider the tolerance of processing technology, measure axle go side 23 and be of a size of 17.925 ± 0.005mm that wear limit is 17.92mm, measure axle not-go-end 24 and be of a size of 18.054 ± 0.005mm.
In order to guarantee the wearing quality of cubing, this cubing adopts GCr15 to carry out Quenching Treatment, makes hardness reach HRC57-HRC62
When detecting:
Can insert in the little pin-and-hole of the measurement via hole that detects support and measured workpiece if 1 measures axle go side 23, can not enter smoothly and measure an axle not-go-end 24, then workpiece is certified products;
Can insert in the little pin-and-hole of the measurement via hole that detects support and measured workpiece if 2 measure axle go sides 23, measure an axle not-go-end 24 and also can insert, judge that then the centre distance of non-through hole is excessive, this workpiece is defective.
When 3, a measurement axle go side 23 can not be inserted in the little pin-and-hole, if the little pin-and-hole of measured workpiece judges then that in the left side of detecting support measurement via hole the centre distance of non-through hole is too small, this workpiece was defective; If the little pin-and-hole of measured workpiece judges then that on the right side of detecting the support aperture centre distance of non-through hole is excessive, this workpiece is defective.
If the precision of the precision of measured hole and pitch-row is very low, can be without Process Dimension Chain Calculating, can detect without drift and no-go gage, namely directly position by pilot hole, judge then that by the aperture of detection support and by the little pin-and-hole of measured workpiece workpiece hole, can not be defective by then judging apart from qualified with measuring axle.
General technician also knows, detection for the centre distance of two parallel non-through holes, method is the same with vertical through-via with principle, and it is simpler only to detect support, and the detection support of this moment is to process two holes on the flat board to get final product.
Cubing of the present invention, it is simple in structure, can improve the detection efficiency of the big pin-and-hole of measured workpiece and little pin-and-hole centre distance, can realize the full inspection of workpiece rapidly.Also reduce simultaneously the labour intensity of workman's operation, avoided the three-dimensional sampling observation to bring the risk of scrapping in batches, reduced the cost that detects.
The present invention is by preferred embodiment having carried out detailed explanation.Yet, by to the studying carefully of preamble, to the variation of each embodiment with to increase also be that one of ordinary skill in the art institute is apparent.Being intended that all these variations and increasing of applicant all dropped in the scope that claim of the present invention protects.
Similar numbering refers to similar element in the whole text.For the purpose of clear, the situation that some line, layer, element, parts or feature are amplified may be arranged in the accompanying drawings.
Term used herein is only for to be illustrated specific embodiment, and it is not to be intended to limit the invention.Unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) are all identical with one of ordinary skill in the art's of the present invention understanding.
Claims (11)
1. the centre distance cubing of a non-through hole is characterized in that:
Comprise the detection support, described detection support be provided with respectively with workpiece to be detected on pilot hole, detect approximately axial location, hole via hole, measure via hole;
Also comprise for pilot hole, the location locating shaft that matches of via hole, also comprise the measurement axle that detects for insertion measurement via hole, measured hole, described measurement axle comprises that one measures axle go side and a measurement axle not-go-end, the size L of described measurement axle measure portion
DetectSatisfy following formula:
Wherein: L
The gap=D
Prop up 1-d
The locationD
1Be measured workpiece pilot hole diameter; L
Pitch-rowCentre distance for measured workpiece pilot hole and measured hole; D
2Be measured workpiece measured hole diameter; d
The locationBe the locating shaft diameter; L
The gapBe locating shaft and the gap of detecting support location via hole; L
SupportFor detecting support location via hole and the centre distance of measuring via hole; D
Prop up 1For detecting the diameter of support location via hole; D
Prop up 2Measure the diameter of via hole for detecting support; d
DetectFor measuring the base diameter of axle measure portion;
The described size L that measures the axle not-go-end
The go side, measure the size L of axle go side
Not-go-endSatisfy following formula:
Wherein: IS represents the lower deviation of corresponding component size, and ES represents the upper deviation of corresponding component size.
2. cubing according to claim 1 is characterized in that: described measure the axle go side and measure the axle not-go-end lay respectively at the two ends of measuring axle.
3. cubing according to claim 2 is characterized in that: measurement axle not-go-end ratio measurement axle go side weak point.
4. cubing according to claim 2 is characterized in that: the described axle of measuring also is provided with and measures an axle handle measuring the axle go side and measure position between the axle not-go-end.
5. cubing according to claim 4 is characterized in that: a described measurement axle handle is provided with anti-skidding portion.
6. cubing according to claim 1 is characterized in that: described measurement axle go side and/to measure an axle not-go-end be cylindric.
7. cubing according to claim 1, it is characterized in that: the termination of described locating shaft also is provided with the locating shaft handle.
8. cubing according to claim 7, it is characterized in that: described locating shaft handle also is provided with anti-skidding portion.
9. cubing according to claim 7 is characterized in that: also be provided with the radial protrusion that a circle is used for and detects the bracket end face cooperation between locating shaft and locating shaft handle.
10. cubing according to claim 1 is characterized in that: described locating shaft and pilot hole clearance fit.
11. cubing according to claim 1 is characterized in that: described locating shaft and detection support location via hole clearance fit or interference fit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102345026A CN103292669A (en) | 2013-06-14 | 2013-06-14 | Center distance gauge for non-through holes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102345026A CN103292669A (en) | 2013-06-14 | 2013-06-14 | Center distance gauge for non-through holes |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604347A (en) * | 2013-11-26 | 2014-02-26 | 北京卫星环境工程研究所 | Measuring tool for assembling hole of support of 10N thruster |
| CN106225644A (en) * | 2016-08-29 | 2016-12-14 | 芜湖新兴铸管有限责任公司 | A kind of flange hole center distance check tool |
| CN108280307A (en) * | 2018-01-31 | 2018-07-13 | 厦门理工学院 | Engine cylinder body opening system location determining method |
| CN110749260A (en) * | 2019-11-18 | 2020-02-04 | 中国第一重型机械集团大连加氢反应器制造有限公司 | Hole pitch detection device and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604347A (en) * | 2013-11-26 | 2014-02-26 | 北京卫星环境工程研究所 | Measuring tool for assembling hole of support of 10N thruster |
| CN106225644A (en) * | 2016-08-29 | 2016-12-14 | 芜湖新兴铸管有限责任公司 | A kind of flange hole center distance check tool |
| CN108280307A (en) * | 2018-01-31 | 2018-07-13 | 厦门理工学院 | Engine cylinder body opening system location determining method |
| CN110749260A (en) * | 2019-11-18 | 2020-02-04 | 中国第一重型机械集团大连加氢反应器制造有限公司 | Hole pitch detection device and method |
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Application publication date: 20130911 |