CN203323675U - Center distance detecting tool used for through hole - Google Patents
Center distance detecting tool used for through hole Download PDFInfo
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- CN203323675U CN203323675U CN2013203397292U CN201320339729U CN203323675U CN 203323675 U CN203323675 U CN 203323675U CN 2013203397292 U CN2013203397292 U CN 2013203397292U CN 201320339729 U CN201320339729 U CN 201320339729U CN 203323675 U CN203323675 U CN 203323675U
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- Prior art keywords
- axle
- hole
- locating shaft
- measuring
- pilot hole
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- 238000005259 measurement Methods 0.000 claims description 36
- 238000001514 detection method Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 description 11
- 238000012545 processing Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a center distance detecting tool used for a through hole. The center distance detecting tool used for the through hole includes a positioning shaft used for fitting with a positioning hole. The center distance detecting tool used for the through hole also includes a measuring shaft used for inserting into a measuring hole for measuring. The measuring shaft includes a measuring shaft through end and a measuring shaft stop end. The size of L[detection] of a measuring part of the measuring shaft meets the following formula: L[detection]=D1/2+L[hole distance]+D2/2-d[positioning]. The size of L[through end] of the measuring shaft through end meets the following formula: L[through end]=IS[L[hole distance]]+ES[D1]/2+ES[D2]/2-IS[d1]+L[detection]. The size of L[stop end] of the measuring shaft stop end meets the following formula: L[stop end]=ES[L[hole distance]]+IS[D1]/2+IS[D2]/2-ES[d1]+L[detection]. The center distance detecting tool used for the through hole provided by the utility model is simple in structure. By using the center distance detecting tool used for the through hole, efficiency of detecting the center distance between a main pin hole and a lock keyhole of a front axle of an automobile can be improved and full detection of a work piece can be realized quickly. At the same time, labor strength of workers is reduced, risks of batch rejection caused by three-dimensional spot check and detection cost is reduced.
Description
Technical field
The utility model relates to a kind of cubing, more precisely, relates to a kind of cubing for detection of through hole centre distance.
Background technology
The centre distance in Vehicular front axle main pin hole and locking bolt hole is one of important indicator of automobile front axle processing, the quality of centre distance size directly affects the assembling in later stage, also likely make front-axle pivot locking unreliable, stub is produced and axially and radially collect together, affect life-span and the vehicle performance of propons.In the process in Vehicular front axle main pin hole and locking bolt hole, to the detection of centre distance lack one efficiently, testing tool and method easily, make the detection efficiency of centre distance low, flow process is loaded down with trivial details.
The detection of the current centre distance to main pin holes of fore axis and locking bolt hole is to adopt the three-dimensional method to be inspected by random samples.At first be to roll off the production line after front axle machines, manually with trolley, workpiece delivered to sensing chamber, workpiece is lifted on detection platform, the testing staff by three-dimensional to workpiece sensing.
By the three-dimensional method, detected, not only labour intensity is large, detects more loaded down with trivial detailsly, has also taken this valuable resource of three-dimensional simultaneously.In addition, three-dimensional can only be inspected by random samples, when substandard product being detected, substandard product in batches just very likely occurred.
The utility model content
The utility model, in order to solve problems of the prior art, provides a kind of center distance check tool of through hole.
In order to realize above-mentioned purpose, the technical solution of the utility model is: the center distance check tool of through hole, it is characterized in that: comprise the locating shaft for matching with pilot hole, also comprise the measurement axle detected for inserting measured hole, described measurement axle comprises a measurement axle go side and a measurement axle not-go-end, the size L of described measurement axle measure portion
DetectMeet following formula:
Wherein, the diameter that D1 is pilot hole; L
Pitch-rowCentre distance for the desired through hole of product; The diameter that D2 is measured hole; d
LocationDiameter for locating shaft;
The size L of described measurement axle go side
Go sideMeet following formula:
Wherein, IS
The L pitch-rowFor L
Pitch-rowLower deviation, ES
D1For the upper deviation of pilot hole diameter, ES
D2For the upper deviation of measured hole diameter, IS
D1Lower deviation for the pilot hole diameter;
The size L of described measurement axle not-go-end
Not-go-endMeet following formula:
Wherein, ES
The L pitch-rowFor L
Pitch-rowThe upper deviation, IS
D1For the lower deviation of pilot hole diameter, IS
D2For the lower deviation of measured hole diameter, ES
D1The upper deviation for the pilot hole diameter.
Preferably, described measurement axle go side and measurement axle not-go-end lay respectively at the two ends of measuring axle.
Preferably, described measurement axle also is provided with measurement axle handle in the position of measuring the axle go side and measure between the axle not-go-end.
Preferably, described measurement axle handle is provided with anti-skidding section.
Preferably, described measurement axle go side and/to measure the axle not-go-end be flat.
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 section.
Preferably, also be provided with a circle for the radial protrusion with the cooperation of pilot hole end face between locating shaft and locating shaft handle.
Preferably, described locating shaft and pilot hole clearance fit.
Preferably, the quality of fit of described locating shaft and pilot hole is H8/g5.
Cubing of the present utility model, it is simple in structure, can improve the detection efficiency of Vehicular front axle main pin hole and locking bolt hole centre distance, can realize rapidly the full inspection of workpiece.Also reduced the labour intensity of workman's operation, avoided the three-dimensional sampling observation to bring the risk of scrapping in batches, reduced the cost detected simultaneously.
The accompanying drawing explanation
Fig. 1 shows the structural representation of the utility model locating shaft.
Fig. 2 shows the use constitutional diagram of the utility model cubing.
Embodiment
For the technical matters that the utility model is solved, the technical scheme of employing, the technique effect easy to understand of obtaining, below in conjunction with concrete accompanying drawing, embodiment of the present utility model is described further.
The utility model provides a kind of center distance check tool of through hole, and the utility model be take the front axle of certain automobile and described as example, and certain automobile front axle parameter: the kingpin bore diameter is
The diameter in locking bolt hole is
Pitch-row is
With reference to figure 1, Fig. 2, automobile front axle 3 of the present utility model, kingpin bore is a vertical phase perforation with the locking bolt hole, here with kingpin bore, positions, and with the locking bolt hole, is measured, and usings kingpin bore as pilot hole, usings the locking bolt hole as measured hole; Certainly general designer knows, also can position with the locking bolt hole, with kingpin bore, is measured.But the precision of kingpin bore is higher, the precision in locking bolt hole is lower, if locate in low hole with precision, the error of measurement is large.
Cubing of the present utility model comprises the locating shaft 13 for matching with pilot hole, also comprises the measurement axle 2 detected for inserting measured hole, and described measurement axle comprises that a measurement axle go side 23 and measures axle not-go-end 24.Locating shaft 13 is inserted in the kingpin bore of automobile front axle 3, preferably makes locating shaft 13 and kingpin bore clearance fit, for example quality of fit is H8/g5.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 shaft shoulder 14 of locating shaft and the laminating of front-axle pivot hole end surface, the location that completes locating shaft, making does not need the operative employee holding up locating shaft after locating shaft insertion kingpin bore.Require the flatness of the faying face of the shaft shoulder and front axle to be less than 0.02mm here, the while is less than 0.03mm with the verticality of the locating surface of locating shaft.
For the operation of handled easily work, the termination of this locating shaft also is provided with a locating shaft handle 11, and process through annular knurl on the surface of locating shaft handle 11, can regard an anti-skidding section as.Locating shaft stamp face 12 can also be set on this locating shaft handle 11, for printing the numbering of cubing, convenient management and regular censorship.
Referring to Fig. 2, reflected more intuitively structure and the using method of measuring axle, measure axle go side 23 and measure the two ends that axle not-go-end 24 is positioned at the measurement axle, make to measure axle go side 23 and measure axle not-go-end 24 to be structure as a whole convenient 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, measure axle handle 21 and preferably process through annular knurl, can regard an anti-skidding section as.Measure axle stamp face 22 and be arranged on this measurement axle handle 21, 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, while detecting, requires go side to enter here, and not-go-end can not enter just judges that workpiece processing is qualified.
Measure the size of axle go side 23 and measurement axle not-go-end 24 by Process Dimension Chain Calculating:
The size L of described measurement axle measure portion
DetectMeet following formula:
Wherein, the diameter that D1 is pilot hole; L
Pitch-rowCentre distance for the desired through hole of product; The diameter that D2 is measured hole; d
LocationDiameter for locating shaft;
The size L of described measurement axle go side
Go sideMeet following formula:
Wherein, IS
The L pitch-rowFor L
Pitch-rowLower deviation, ES
D1For the upper deviation of pilot hole diameter, ES
D2For the upper deviation of measured hole diameter, IS
D1Lower deviation for the pilot hole diameter;
The size L of described measurement axle not-go-end
Not-go-endMeet following formula:
Wherein, ES
The L pitch-rowFor L
Pitch-rowThe upper deviation, IS
D1For the lower deviation of pilot hole diameter, IS
D2For the lower deviation of measured hole diameter, ES
D1The upper deviation for the pilot hole diameter.
In above-mentioned dimension chain, because pitch-row is element to be measured, so:
Closed-loop: L
Pitch-row
Once encircled: d
Location, L
Detect
Subtract ring:
In embodiment of the present utility model, the parameter with reference to above-mentioned, obtain L
DetectNumerical value be 9.5mm, 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 axle go side 23, is calculated as 9.5245mm; This basic size adds the size that the upper deviation can obtain measuring axle not-go-end 24, is calculated as 9.609mm.Consider the tolerance of processing technology, detect the axle go side and be of a size of 9.53 ± 0.005mm, wear limit is 9.525mm, and not-go-end is of a size of 9.595 ± 0.005mm, and the wear limit of locating shaft is 46.98mm.
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 locking bolt hole if 1 measures axle go side 23, can not enter smoothly and measure axle not-go-end 24, workpiece is certified products;
Can insert in the locking bolt hole if 2 measure axle go side 23, measure axle not-go-end 24 and also can insert, judge that the centre distance of through hole is excessive, this workpiece is defective.
Can not insert in the locking bolt hole if 3 measure axle go side 23, judge that the centre distance of through hole is too small, this workpiece is defective.
With reference to figure 2, general designer knows, this measurement axle go side 23 and measure axle not-go-end 24 can be columned by making.The utility model is preferably made flat, and measuring like this axle go side 23, measuring contacting of axle not-go-end 24 and locating shaft is the line contact, makes measurement more reliable, measures axle simultaneously and makes flat, and area increases, so more wear-resisting.
Cubing of the present utility model, it is simple in structure, can improve the detection efficiency of Vehicular front axle main pin hole and locking bolt hole centre distance, can realize rapidly the full inspection of workpiece.Also reduced the labour intensity of workman's operation, avoided the three-dimensional sampling observation to bring the risk of scrapping in batches, reduced the cost detected simultaneously.
The utility model is by preferred embodiment having carried out detailed explanation.Yet, by studying carefully above, to the variation of each embodiment with to increase be also 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 the utility model claim protects.
Similar numbering refers to similar element in the whole text.For clarity, 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 not is intended to the utility model is limited.Unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) are all identical with the utility model one of ordinary skill in the art's understanding.
Claims (10)
1. the center distance check tool of through hole, it is characterized in that: comprise the locating shaft for matching with pilot hole, also comprise the measurement axle detected for inserting measured hole, described measurement axle comprises a measurement axle go side and a measurement axle not-go-end, the size L of described measurement axle measure portion
DetectMeet following formula:
Wherein, the diameter that D1 is pilot hole; L
Pitch-rowCentre distance for the desired through hole of product; The diameter that D2 is measured hole; d
LocationDiameter for locating shaft;
The size L of described measurement axle go side
Go sideMeet following formula:
Wherein, IS
The L pitch-rowFor L
Pitch-rowLower deviation, ES
D1For the upper deviation of pilot hole diameter, ES
D2For the upper deviation of measured hole diameter, IS
D1Lower deviation for the pilot hole diameter;
The size L of described measurement axle not-go-end
Not-go-endMeet following formula:
Wherein, ES
The L pitch-rowFor L
Pitch-rowThe upper deviation, IS
D1For the lower deviation of pilot hole diameter, IS
D2For the lower deviation of measured hole diameter, ES
D1The upper deviation for the pilot hole diameter.
2. cubing according to claim 1 is characterized in that: described measurement axle go side and measure the axle not-go-end and lay respectively at the two ends of measuring axle.
3. cubing according to claim 2 is characterized in that: described measurement axle also is provided with and measures the axle handle measuring the axle go side and measure position between the axle not-go-end.
4. cubing according to claim 3, it is characterized in that: described measurement axle handle is provided with anti-skidding section.
5. cubing according to claim 1 is characterized in that: described measurement axle go side and/to measure the axle not-go-end be flat.
6. cubing according to claim 1, it is characterized in that: the termination of described locating shaft also is provided with the locating shaft handle.
7. cubing according to claim 6, it is characterized in that: described locating shaft handle also is provided with anti-skidding section.
8. cubing according to claim 6, is characterized in that: also be provided with a circle for the radial protrusion with the cooperation of pilot hole end face between locating shaft and locating shaft handle.
9. cubing according to claim 1, is characterized in that: described locating shaft and pilot hole clearance fit.
10. cubing according to claim 9, it is characterized in that: the quality of fit of described locating shaft and pilot hole is H8/g5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203397292U CN203323675U (en) | 2013-06-14 | 2013-06-14 | Center distance detecting tool used for through hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203397292U CN203323675U (en) | 2013-06-14 | 2013-06-14 | Center distance detecting tool used for through hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203323675U true CN203323675U (en) | 2013-12-04 |
Family
ID=49663016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203397292U Expired - Fee Related CN203323675U (en) | 2013-06-14 | 2013-06-14 | Center distance detecting tool used for through hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203323675U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307955A (en) * | 2013-06-14 | 2013-09-18 | 安徽江淮汽车股份有限公司 | Center distance gauge of through hole |
-
2013
- 2013-06-14 CN CN2013203397292U patent/CN203323675U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307955A (en) * | 2013-06-14 | 2013-09-18 | 安徽江淮汽车股份有限公司 | Center distance gauge of through hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20190614 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |