CN107966082A - A kind of cubing for being used to detect automobile curved surface part surface profile - Google Patents
A kind of cubing for being used to detect automobile curved surface part surface profile Download PDFInfo
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- CN107966082A CN107966082A CN201711205056.0A CN201711205056A CN107966082A CN 107966082 A CN107966082 A CN 107966082A CN 201711205056 A CN201711205056 A CN 201711205056A CN 107966082 A CN107966082 A CN 107966082A
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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
- G01B5/0025—Measuring of vehicle parts
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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
- G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a kind of cubing for being used to detect automobile curved surface part surface profile, including base, testing stand and amesdial, the cavity for accommodating part to be measured is offered on base, testing stand is installed on base, testing stand is across the outside of cavity, some detection holes through testing stand thickness direction are offered on testing stand, each detection hole includes the first location hole and the second location hole being connected, second location hole is close to cavity, amesdial include can elastic reset gauge rod, the outer sheath of gauge rod is equipped with sleeve, the aperture of first location hole is adapted with the outside diameter of sleeve, the aperture of second location hole is adapted with the outside diameter of gauge rod.The cubing detection efficiency, accuracy of detection and efficiency-cost ratio are high, easy to operate, have good adaptability, and a detection is taken suitable for the surface profile of the curved surface of various gradients, can as batch production of the general cubing to curved surface part progress Site Detection and quality control.
Description
Technical field
The present invention relates to a kind of auto parts and components cubing, is specifically that one kind is used to detect automobile curved surface part surface profile
Cubing.
Background technology
Automobile exterior and interior trim parts are demonstrated by the shaping style of different automobile types, usually have complicated appearance curved surface,
Whether meet the tolerance of surface profile for detecting such surface profile with complex appearance curved surface parts, have at present
Two methods.
First method：A measuring apparatus is taken using expensive three coordinate（Price is generally in hundreds thousand of members）, will treat
The part of detection is fixed on the dedicated measurement stent of the part, then according to curved surface size and the curved surface features of concern, zero
Take some points to be used as test point on the privileged site of part curved surface, then measure the deviation of these test points, judge External Shape curved surface
Deviation（That is deflection）, and then judge whether the part curved surface of measurement meets the tolerance of surface profile.The inspection of this method
Survey less efficient, and this expensive three coordinate takes a measuring apparatus inconvenience to be transported to production scene to be used, and considers
To the factor such as its service life and price, efficiency-cost ratio, three coordinates take a measuring apparatus to be only used for initial stage of development single-piece or small lot zero
The detection of part, is not suitable for carrying out the part of batch production the quality control measurement request of in-site measurement.
Second method：External Shape curved surface is checked using snap-gauge.As shown in Figure 1, this is a kind of bent in External Shape
Range line profile 1 is taken on face, a section equidistantly amplified is obtained to one a reference value A of the outside iso-metric offset of range line profile 1
Contour line 2, reuses the range line profile 2 equidistantly amplified and processes snap-gauge 3.Part 4 is placed during detection and is positioned at cubing
On base 5, reuse snap-gauge 3 across and be fixed on the cross section place for the part 4 to be detected, so in 4 curved surface to be measured of part
A uniform gap ideally is formed between snap-gauge 3, is above-mentioned A values.If 4 curved surface to be measured of part has deformation,
Feeler gauge 6 can be passed through（Patch ruler or divider）Measured value B is obtained to the clearance measurement, A-B=C is timing, i.e., B values are less than A values, table
Show that actual gap is less than ideal gap, illustrate that curved surface is outwards more than ideal surface；C for it is negative when, that is, B values are more than A values, expression is actually
Gap is more than ideal gap, illustrates that curved surface is inwardly less than ideal surface.This method shortcoming：Repeated multiple times make is needed when the first, measuring
The gap between snap-gauge and curved surface to be measured is filled in various sizes of feeler gauge, Step wise approximation measures B values, and detection efficiency is low.Work as survey
When amount point is more, detection efficiency is even more low；It is larger that the curved surface gradient of snap-gauge left and right sides is such as run into when the 2nd, measuring, will be led
Feeler gauge is caused not fill in, it is difficult to measure B values；3rd, detection error caused by operational motion is nonstandard, the free degree is excessive.During measurement
Feeler gauge is needed perpendicular to snap-gauge measuring surface, and is slided in the gap between snap-gauge and curved surface to be measured, can not due to being manual measurement
Accomplish that feeler gauge is exactly perpendicularly to snap-gauge measuring surface, and limited by feeler gauge shape and accurately can not measure B by contact measured curved surface specified point
Value, measurement error are larger.
The content of the invention
The technical problems to be solved by the invention are：In view of the deficiencies of the prior art, there is provided a kind of efficiency-cost ratio is high, operation letter
Just, the high cubing for being used to detect automobile curved surface part surface profile of accuracy of detection.
Technical solution is used by the present invention solves above-mentioned technical problem：One kind is used to detect automobile curved surface part face wheel
The cubing of wide degree, including base, testing stand and amesdial, the cavity for accommodating part to be measured is offered on the base,
The testing stand is installed on the base, and the testing stand is across the outside of the cavity, the testing stand
On offer some detection holes through testing stand thickness direction, each detection hole includes the first location hole being connected
With the second location hole, second location hole close to the cavity, the amesdial include can elastic reset gauge rod,
The outer sheath of the gauge rod is equipped with sleeve, and the aperture of first location hole is adapted with the outside diameter of the sleeve, institute
The aperture for the second location hole stated is adapted with the outside diameter of the gauge rod, and the amesdial is used as zero-bit base using a reference value S
Standard, a reference value S for part to be measured load cavity in and testing stand be installed on base on after, first location hole
Air line distance between the forward projection point of bottom center's point and the central point on the ideal surface of part to be measured, the ideal are bent
Face meets the part curved surface of design requirement for surface profile.
Cubing of the present invention in use, its amesdial using a reference value S as zero reference, a reference value S be part to be measured dress
Enter in cavity and after testing stand is installed on base, the reason of bottom center's point of the first location hole and the central point in part to be measured
Think the air line distance between the forward projection point on curved surface.A reference value S may be derived from the original 3D design assemblings of part to be measured and cubing
Drawing.In use, first loading part to be measured in cavity, then testing stand is installed on base, is used as zero using a reference value S afterwards
Position benchmark calibrates amesdial, you can starts to detect the surface profile of part to be measured.Commercial product may be selected in amesdial.Detection
When, some detection holes correspond to some test points respectively, the gauge rod of amesdial are sequentially inserted into detection hole, detection hole makes amesdial
It is accurately positioned to above test point, the sleeve on the outside of gauge rod is by between the first location hole and the first location hole and the second location hole
Step surface（That is the bottom surface of the first location hole）Spacing up and down, gauge rod is bent through the first location hole and the second location hole and part to be measured
Point contact to be measured on face, gauge rod are compressed and moved axially, this amount of movement passes to the pointer of amesdial, the detection
The actual measurement deviation of point can directly be read on amesdial, and the deviation range of the deviation of reading and design requirement is compared
It is right, you can to judge whether the surface profile of the test point is overproof, so repeat, complete the inspection of the surface profile to all test points
Survey and judge.When amesdial detects some test points, only need to calibrate once using a reference value S as zero reference before detection, institute
The detection for having test point is based on same a reference value S.
Preferably, being fixed with multiple locating pieces on the base, locating slot is offered on each locating piece,
The bottom of the testing stand is provided with the multiple installation feet being adapted with multiple locating slots, each installation foot
In the locating slot described in one.By the cooperation of installation foot and locating slot, easy to the fast assembling-disassembling of testing stand, so that into
One step improves the detection efficiency of curved surface part surface profile.
Further, the locating slot is arranged on the side to the right of the locating piece or side position to the left, the inspection
The upper surface of test aircraft is provided with mistake proofing mark.Mistake proofing mark in the design of position off normal and testing stand of locating slot can play compared with
Good mistake proofing is pretended to use, and facilitates installation personnel to carry out visual mistake proofing, easy to its disposable correct identification installation site, realizes cubing
Quick, accurate installation.
Preferably, each locating piece is fixed on the bottom by some positioning pins and some hexagon socket head cap screws
On seat.By positioning pin and hexagon socket head cap screw can realize locating piece and base being accurately positioned and fixed, these locating pieces design
For identical part, easy to manufacture, install and safeguard.
Preferably, several positioning units for being used to position part to be measured, several institutes are installed on the base
The positioning unit stated is set around the cavity, and each positioning unit includes the connection set gradually from bottom to top
Block, sliding block and briquetting, the contiguous block are installed on the base by some positioning pins, are set on the contiguous block
There is the sliding slot of opening up front and rear conducting, the sliding block is installed on the sliding slot and can simultaneously be slided along the sliding slot, institute
The front end for the sliding block stated is provided with the location division being adapted with the outer edge of part to be measured, and the location division is used to position to be measured
Part, offers opening up groove on the sliding block, and the briquetting is installed on the groove, the briquetting,
Sliding block and contiguous block are located by connecting up and down through a dismountable pin rod, the pin rod also cross the groove and sliding slot,
The briquetting is fixedly connected with the contiguous block through some hexagon socket head cap screws, and the briquetting is across in the sliding slot
Both sides, the displacement that the sliding block is slided along the sliding slot are spacing by the briquetting and the contiguous block.During installation, lead to
Cross contiguous block and briquetting realizes positioning unit being accurately positioned on base.After part to be measured is installed on base, mobile sliding block
Primary Location is carried out to part to be measured, then briquetting, sliding block and contiguous block are located by connecting up and down by pin rod, is realized to be measured zero
Part is accurately positioned, and then by part reliable location to be measured on base, simulates part actual installation and localizing environment, it is ensured that inspection
The accuracy of result is surveyed, while can easily move sliding block, realizes lossless dismounting of the part in cubing.Sliding block can come along sliding slot
Return slide, sliding block is spacing by briquetting and contiguous block along the displacement that sliding slot slides, thus sliding block can only be slided in certain distance and
Without departing from.Several positioning units use modularized design, for the part of different model, because the outer edge of part is in the presence of poor
Different, when use, only needs to change sliding block, and other parts can share, easy to manufacture, install and safeguard.
Preferably, being provided with calibration block on the base, it is a reference value S that it, which calibrates size,.By calibration block
It is directly installed on base, convenient operation, while preparation and the storage time of cubing parts can be saved.
Preferably, the testing stand is cross-type testing stand, it is arranged at intervals with the testing stand multiple described
Detection hole.Cross-type testing stand, it can be ensured that detection hole covers the horizontal and vertical of part curved surface to be measured, improves testing result
Accuracy.
Preferably, being provided with bulge loop on the base along around the cavity, the bulge loop is used to support
The inner surface edge of part to be measured.The outer surface of curved surface part and inner surface are usually curved surface, and the setting of bulge loop, is conducive to reality
Now to effective support of part to be measured, make part to be measured is positioned closer to actual installation state.
Preferably, the bulge loop is removably mounted on the base.For with different shape or gradient
Inner surface curved surface part, the replaceable bulge loop to match, it is ensured that to the secure support of part.
Compared with prior art, the advantage of the invention is that：
1st, the cubing disclosed by the invention for being used to detect automobile curved surface part surface profile, detection efficiency is high, can be without conversion one
Secondary property directly reads the surface profile deviation of test point on part curved surface to be measured；
2nd, the cubing is high to the accuracy of detection of the surface profile of curved surface part, easy to operate, has good adaptability, is suitable for
The surface profile of the curved surface of various gradients takes a detection；
3rd, the detection error caused by operational motion is nonstandard, the free degree is excessive in traditional detection method can be avoided；
4th, efficiency-cost ratio is high, which can carry out Site Detection and quality control as batch production of the general cubing to curved surface part
System.
Brief description of the drawings
Fig. 1 is the longitudinal cross-section schematic diagram for the cubing that tradition checks External Shape curved surface using snap-gauge；
Fig. 2 is the transverse sectional view for the cubing that tradition checks External Shape curved surface using snap-gauge；
Fig. 3 is the outside drawing of cubing in embodiment；
Fig. 4 is the top view of cubing in embodiment；
Fig. 5 is A-A sectional views in Fig. 4；
Fig. 6 is B-B sectional views in Fig. 4；
Fig. 7 is C-C sectional views in Fig. 4；
Fig. 8 is that amesdial is inserted into effect diagram after detection hole in embodiment；
Fig. 9 is the outside drawing of a positioning unit in embodiment；
Figure 10 is the explosive view of a positioning unit in embodiment.
Embodiment
The present invention is described in further detail below in conjunction with attached drawing embodiment.
The cubing for being used to detect automobile curved surface part surface profile of embodiment, as shown in Fig. 3-Figure 10, including base 1,
Testing stand 2 and amesdial 3, the cavity 11 for accommodating part 5 to be measured is offered on base 1, and testing stand 2 is installed on base 1,
Testing stand 2 is provided with bulge loop 12 along around cavity 11, bulge loop 12 is used to support to be measured across the outside of cavity 11 on base 1
The inner surface edge of part 5；In the present embodiment, testing stand 2 is cross-type testing stand 2, is arranged at intervals with and passes through on the testing stand 2
Seven detection holes 21 of 2 thickness direction of testing stand are worn, the first location hole 22 and second that each detection hole 21 includes being connected is fixed
Position hole 23, the second location hole 23 is close to cavity 11；In the present embodiment, amesdial 3 is commercial product, and amesdial 3 includes can elasticity
The gauge rod 31 of reset, the outer sheath of gauge rod 31 are equipped with sleeve 32, and the aperture of the first location hole 22 is adapted with the outside diameter of sleeve 32,
The aperture of second location hole 23 is adapted with the outside diameter of gauge rod 31, and using a reference value S as zero reference, a reference value S is amesdial 3
After part 5 to be measured loads in cavity 11 and testing stand 2 is installed on base 1, bottom center's point of the first location hole 22 with this
Air line distance between forward projection point of the heart point on the ideal surface of part 5 to be measured, ideal surface meet design for surface profile
It is required that part curved surface.In the present embodiment, a reference value S is derived from part 5 to be measured and the original 3D design assemblies paper of cubing.
In the present embodiment, calibration block 13 is installed on base 1, it calibrates value S on the basis of size；Four are fixed with base 1
A locating piece 14, each locating piece 14 are fixed on base 1 by two positioning pins 16 and two hexagon socket head cap screws 17, Mei Geding
Side position to the right on the block 14 of position offers locating slot 15, and the bottom of testing stand 2 is provided with what is be adapted with four locating slots 15
Four installation feet 24, each installation foot 24 are installed in a locating slot 15；It is carved with upward in the upper surface of the upper end of testing stand 2
Arrow is identified as mistake proofing.
In the present embodiment, four positioning units for being used to position part 5 to be measured, four positioning units are installed on base 1
Circular cavity 11 is set, and as shown in Figure 9 and Figure 10, each positioning unit includes contiguous block 41, the cunning set gradually from bottom to top
Block 42 and briquetting 43, contiguous block 41 are installed on base 1 by two positioning pins 48, are provided with contiguous block 41 opening up
The sliding slot 44 of front and rear conducting, sliding block 42 are installed on sliding slot 44 and can be slided along sliding slot 44, the front end of sliding block 42 be provided with it is to be measured
The location division 45 that the outer edge of part 5 is adapted, location division 45 are used to position part 5 to be measured, and opening court is offered on sliding block 42
On groove 46, briquetting 43 is installed on groove 46, briquetting 43, sliding block 42 and contiguous block 41 through a dismountable pin rod about 47 it is fixed
Position connection, pin rod 47 are fixed through two hexagon socket head cap screws 49 and connected also cross groove 46 and sliding slot 44, briquetting 43 and contiguous block 41
Connect, briquetting 43 is across spacing by briquetting 43 and contiguous block 41 along the displacement that sliding slot 44 slides in the both sides of sliding slot 44, sliding block 42.
In use, first loading part 5 to be measured in cavity 11, then testing stand 2 is installed on base 1, then passes through four
A positioning unit positions part 5 to be measured, and the sliding block 42 on four positioning units is moved to location division 45 along sliding slot 44 respectively will
5 Primary Location of part to be measured, is inserted into pin rod 47, realizes the locking to positioning unit, part 5 to be measured is accurately located at base
On 1.Amesdial 3 is calibrated using a reference value S as zero reference afterwards, you can start to detect the surface profile of part 5 to be measured.Inspection
During survey, seven detection holes 21 correspond to seven test points respectively, and the gauge rod 31 of amesdial 3 is sequentially inserted into detection hole 21, detect
Hole 21 makes amesdial 3 be accurately positioned to above test point, and the sleeve 32 in the outside of gauge rod 31 is by the first location hole 22 and the first positioning
Step surface between 22 and second location hole 23 of hole（That is the bottom surface of the first location hole 22）Spacing up and down, gauge rod 31 is fixed through first
22 and second location hole 23 of position hole is compressed with the point contact to be measured on 5 curved surface of part to be measured, gauge rod 31 and axial shifting occurs
Dynamic, this amount of movement passes to the pointer of amesdial 3, and the actual measurement deviation of the test point can directly be read on amesdial 3, will
The deviation of reading is compared with the deviation range of design requirement, you can judge whether the surface profile of the test point is overproof,
So repeat, complete the detection and judgement of the surface profile to all test points.
Claims (9)
- A kind of 1. cubing for being used to detect automobile curved surface part surface profile, it is characterised in that：Including base, testing stand and thousand points Table, the cavity for accommodating part to be measured is offered on the base, and the testing stand is installed on the base, institute The testing stand stated offers some inspections through testing stand thickness direction across the outside of the cavity on the testing stand Gaging hole, each detection hole include the first location hole and the second location hole being connected, and second location hole is close The cavity, the amesdial include can elastic reset gauge rod, the outer sheath of the gauge rod is equipped with sleeve, described The aperture of first location hole is adapted with the outside diameter of the sleeve, the aperture of second location hole and the gauge rod Outside diameter is adapted, and for the amesdial using a reference value S as zero reference, a reference value S loads cavity for part to be measured After interior and testing stand is installed on base, the reason of bottom center's point of first location hole and the central point in part to be measured Think the air line distance between the forward projection point on curved surface, the ideal surface meets that the part of design requirement is bent for surface profile Face.
- A kind of 2. cubing for being used to detect automobile curved surface part surface profile according to claim 1, it is characterised in that：Institute Multiple locating pieces are fixed with the base stated, locating slot, the bottom of the testing stand are offered on each locating piece The multiple installation feet being adapted with multiple locating slots are provided with, each installation foot, which is installed on described in one, to be determined In the groove of position.
- A kind of 3. cubing for being used to detect automobile curved surface part surface profile according to claim 2, it is characterised in that：Institute The locating slot stated is arranged on the side to the right of the locating piece or side position to the left, and the upper surface of the testing stand is provided with anti- Mistake mark.
- A kind of 4. cubing for being used to detect automobile curved surface part surface profile according to claim 2, it is characterised in that：Often A locating piece is fixed on by some positioning pins and some hexagon socket head cap screws on the base.
- A kind of 5. cubing for being used to detect automobile curved surface part surface profile according to claim 1, it is characterised in that：Institute Several positioning units for being used to position part to be measured are installed, the positioning unit described in several is around described on the base stated Cavity set, the positioning unit includes contiguous block, sliding block and the briquetting set gradually from bottom to top, the company Connect block to be installed on the base by some positioning pins, opening up front and rear conducting is provided with the contiguous block Sliding slot, the sliding block are installed on the sliding slot and can simultaneously be slided along the sliding slot, the front end of the sliding block be provided with The location division that the outer edge of part to be measured is adapted, the location division are used to position part to be measured, are opened up on the sliding block There is opening up groove, the briquetting is installed on the groove, and the briquetting, sliding block and contiguous block are detachable through one Pin rod be located by connecting up and down, described pin rod is also cross the groove and sliding slot, the briquetting and the connection Block is fixedly connected through some hexagon socket head cap screws, and the briquetting is across in the both sides of the sliding slot, and the sliding block is described in Sliding slot slide displacement it is spacing by the briquetting and the contiguous block.
- A kind of 6. cubing for being used to detect automobile curved surface part surface profile according to claim 1, it is characterised in that：Institute Calibration block is installed on the base stated, it is a reference value S that it, which calibrates size,.
- A kind of 7. cubing for being used to detect automobile curved surface part surface profile according to claim 1, it is characterised in that：Institute The testing stand stated is cross-type testing stand, and multiple detection holes are arranged at intervals with the testing stand.
- A kind of 8. cubing for being used to detect automobile curved surface part surface profile according to claim 1, it is characterised in that：Institute Bulge loop is provided with the base stated along around the cavity, the bulge loop is used to support the inner surface side of part to be measured Edge.
- A kind of 9. cubing for being used to detect automobile curved surface part surface profile according to claim 8, it is characterised in that：Institute The bulge loop stated is removably mounted on the base.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711205056.0A CN107966082A (en) | 2017-11-27 | 2017-11-27 | A kind of cubing for being used to detect automobile curved surface part surface profile |
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| CN201711205056.0A CN107966082A (en) | 2017-11-27 | 2017-11-27 | A kind of cubing for being used to detect automobile curved surface part surface profile |
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| CN108871161A (en) * | 2018-06-25 | 2018-11-23 | 奇瑞汽车股份有限公司 | Detection tool assembly for detecting angle of small plane and use method thereof |
| CN109211091A (en) * | 2018-10-23 | 2019-01-15 | 湖北工业大学 | Specific purpose tool for the detection of vehicle body glass face difference |
| CN113483615A (en) * | 2021-06-25 | 2021-10-08 | 东风柳州汽车有限公司 | Auto parts detects structure |
| CN113790654A (en) * | 2021-10-08 | 2021-12-14 | 东风（武汉）汽车零部件有限公司 | Automobile threshold spare detects uses positioner and examines utensil |
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