CN206056473U - The detection means of heavy section three-dimensional bending part - Google Patents
The detection means of heavy section three-dimensional bending part Download PDFInfo
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- CN206056473U CN206056473U CN201621109887.9U CN201621109887U CN206056473U CN 206056473 U CN206056473 U CN 206056473U CN 201621109887 U CN201621109887 U CN 201621109887U CN 206056473 U CN206056473 U CN 206056473U
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Abstract
This utility model belongs to mechanical engineering technical field, is related to a kind of detection means of heavy section three-dimensional bending part, supports model to constitute by detection workbench, at least one support, at least one detection model and at least three positioning；The support is fixed on detection workbench, and detection model and positioning support model to be separately mounted on support.Gap width of this utility model by measurement and positioning between the detection model on the profile and detection means of the three-dimensional bending part in detection means determines the profile errors value of workpiece, point coordinates value of the also measurable workpiece three-dimensional bending controlling curve at the detection model section.Detection means constructs the positioning datum of heavy section three-dimensional bending part and cross section profile detection benchmark.As support can arbitrarily be arranged on detection workbench, described its is adapted to the detection and measurement of various shape bending parts, belongs to a kind of flexible detection device.
Description
Technical field
This utility model belongs to mechanical engineering technical field, is related to a kind of detection means of heavy section three-dimensional bending part,
Suitable for the field quick detection of heavy section three-dimensional bending part workpiece profile degree in the fabrication process.
Background technology
For the three-dimensional bending shaping workpiece of heavy section, the profile tolerance of workpiece is essential items for inspection, and detection method mainly has
Two kinds, a kind of is the method measured using universal measuring device, and conventional measuring apparatus have three-dimensional coordinates measurement machine testing and laser
Scanning survey machine etc.；Another kind is the method that common monoblock type cubing coordinates other instrument measurements.
In conventional measuring apparatus, large-scale three coordinate measuring machine involves great expense, floor space big, detection environmental requirement is high and examines
Survey efficiency very low.Which is by getting reading piece surface data to forming part surface probe ready, using the number for reading
According to being fitted, comparing and measure with detected part three-dimensional mathematical model surface, its detection efficiency is very low, adapts to not
The requirement of production scene batch production part and quick adjustment requirement to equipment, mould etc., are typically only used as stable life
Sampling Detection after product process.
Also million or so, which is by being scanned reading part to forming part surface to laser scanning measurement machine cost
Surface cloud data, is fitted, is compared and measure using the data and detected part three-dimensional mathematical model surface that read,
Detection efficiency is also very low, does not adapt to the requirement of production scene batch production part and the fast velocity modulation to equipment, mould etc.
Whole requirement, the sampling Detection being typically only used as after steady production process or imitated mapping operations.
Monoblock type cubing coordinate the method for other instruments measurement be using the three-dimensional mathematical model of part set up cubing positioning,
Measuring basiss, are used as measurement data by the gap value detected between benchmark for measuring actual parts and cubing and part are surveyed
Amount, its detection efficiency are high, are widely used in punching parts production.But the every kind of part of the detection method is required for being equipped with a set of inspection
Tool, many costs of cubing quantity are high, floor space is big, are not suitable for the detection measurement of multi-varieties and small-batch part.
Therefore, research and develop a kind of universal detection device for adapting to heavy section three-dimensional bending part profile tolerance detection measurement requirement
And detection method is necessary, which has broad application prospects.
The content of the invention
The purpose of this utility model is that for above-mentioned the deficiencies in the prior art, there is provided a kind of heavy section three-dimensional bending
The detection means of part, the apparatus structure is simple, versatility is good, strong adaptability and cheap.
The purpose of this utility model is achieved through the following technical solutions, as follows in conjunction with illustrating：
A kind of detection means of heavy section three-dimensional bending part, by detection workbench 1, at least one support 5, at least one
Detection model 11 and at least three positioning support model 9 to constitute；The support 5 is fixed on detection workbench 1, detects model 11
Support model 9 to be separately mounted on support 5 with positioning, and each support 5 can install two detection models 11；The support 5
It is made up of base and column, column is provided with the equidistant holes of 100mm pitch-rows along short transverse arrangement, base is provided with two 100mm
The location hole of pitch-row；1 upper surface of the detection workbench is short transverse datum level, and which is transversely provided with 100mm holes with longitudinal direction
Away from equidistant location hole battle array；The detection model 11 and positioning support model 9 to be respectively used to detect workpiece profile degree error and work
The positioning on detection means of part 10.
5 Jing of the support, two alignment pins 4 are through the location hole battle array on its base holes and detection workbench 1 by each support
The 5 horizontal plane position positioning on detection workbench 1, then support 5 is fixed on by detection workbench 1 by screw 3 by pressing plate 2
On；The detection model 11 and positioning support 9 Jing of model, two Positioning screws 6 through two in perforate thereon and 5 column of support
Individual adjacent equidistant holes will detect that model 11 and positioning support the location positioning of short transverse of the model 9 on detection workbench 1, then
To detect that model 11 and positioning support model 9 to be fixed on support 5 by packing ring 7 and nut 8.
The column is rectangle column or square column.
Two of the column are to detect the locating surface of model 11 with hole face, and two is 50mm with the distance between hole face.
The support 5 can arbitrarily be arranged on detection workbench 1.
A kind of detection method of heavy section three-dimensional bending part, comprises the following steps：
The determination of A, tested three-dimensional bending part in 1 locus of detection workbench：
It is using the cross section profile of three-dimensional bending part three-dimensional mathematical model as the positioning datum of the detection means, three-dimensional by workpiece
Mathematical model Jing coordinate transforms are adapted it in the coordinate system space of detection means, i.e. workpiece 10 in detection 1 scope of workbench
It is interior；
The installation of B, support 5：
Determine each support 5 on detection workbench 1 by workpiece three-dimensional mathematical model locus on detection means
Position, two location holes on 5 base of support are aligned with nearest two holes on detection workbench 1, and guarantee column not
Workpiece is touched, support 5 is booked whole workpiece along the length direction of workpiece 10 needs the region of measurement；
The making of C, model foundation drawing
Cutting is done to workpiece mathematical model as tool plan in the column side that detection model 11 is installed using on support 5, obtains
Obtain detection model digital-to-analogue cross section contour at the tangent plane；Make rectangle plane piece in the tool plan, it is fixed with two on column
Position hole the center of circle centered on section plane make two round center of circle cross hairs；By digital-to-analogue cross section contour, center of circle cross hairs
Projection is acted as with rectangle one, CAD plane graphs are changed into, this plane graph is defined as model foundation drawing, and each is detected model
Foundation drawing will carry out labelling and record；
D, cubing detection model 11 are designed and produced
The model foundation drawing obtained with step C makees the similar figures enlarged drawing of cross section profile line graph, and enlarged drawing is away from artwork
Distance is determined according to the profile tolerance tolerance of section bar three-dimensional bending part；The amplification figure of acquisition is deleted leave and take necessary lines as
End is made appropriate supplementary cords and is intersected on the rectangle of model foundation drawing by the detection datum line of workpiece, prunes model rectangle,
Form the detection datum line of opening；Make location hole as the center of circle and mark tolerance with the good cross hairs cross point of labelling；Select suitable
The smooth steel plate of thickness, completes to detect the design of template drawing, and carries out labelling；
E, positioning support designing and producing for model 9
With the model foundation drawing that step C is obtained, cross section profile line chart is deleted and necessary lines is left and taken as workpiece
Positioning supports line, end is made appropriate supplementary cords and is intersected on model rectangle, prunes model rectangle, forms the positioning of opening
Support line；Make location hole as the center of circle and mark tolerance with the good cross hairs cross point of labelling；The smooth steel plate of suitable thickness is selected,
Complete to position and support designing and producing for model 9, and carry out labelling；
F, the making of contour detecting device and assembling
By the detection model 11 for machining, positioned, fixed with two screws 6, packing ring 7 and nut 8 by labelling thereon
On 5 corresponding column side of support and location hole；By with fix the support 5 of model according to labelling by two pins 4,
Pressing plate 2 and screw 3 are fixed on detection workbench 1；Successively all detection model 11, support 5 are fixed by labelling, three are completed
The making of the contour detecting device of dimension brake forming part and assembling；
The measurement in gap between G, workpiece outline and detection model detection datum line
The three-dimensional bending shaping workpiece of brake forming is put in detection means by the position of setting, and workpiece 10 is carried out
Appropriate adjustment makes its reliable location support on model 9, after workpiece 10 is fully located in detection means in positioning, you can with plug
Chi or readable survey tool are measured to the gap between workpiece outline and detection model detection datum line, by detection sample
11 position of plate is read, interrecord gap (IGP) value；
H, judgement workpiece Qualification
According to the technical requirements of workpiece, judge that workpiece is qualified with profile error value of the workpiece 10 at arbitrarily detection model
Situation, judges rapidly the overproof position of workpiece according to this profile error value, adjustment is carried out to workpiece or mould, equipment are carried out
Adjustment.
In step A, three cross section profiles are at least selected as positioning datum.
In step C, minimum two location holes that should be included on column of the rectangle plane piece.
In step D, distance of the enlarged drawing away from artwork is usually set to 5mm.
In step H, the gap width -5mm of the profile error value=measurement.
Compared with prior art, the beneficial effects of the utility model are：This utility model heavy section three-dimensional bending part has
There are all advantages that monoblock type cubing has, i.e., it is easy to detect, quick, directly perceived, accurate；There is flexible detection device simultaneously again
The characteristics of, detecting that work platformses and a set of cubing support are to share parts, almost all of piece test work is only with one
A set of detection model and positioning of detection work platformses and a set of cubing support assorted each part supports model just build
A set of monoblock type cubing.Thus the manufacturing cost and space hold of Workpiece detecting device are significantly reduced.
Description of the drawings
Fig. 1 is front view of the detection means of this utility model heavy section three-dimensional bending part in workpiece sensing state；
Fig. 2 is top view of this utility model workpiece mathematical model in the range of this detection means；
Fig. 3 is this utility model detection model, the positioning relation installation diagram between positioning support model and height bracket；
Fig. 4 is the fixed relationship installation diagram between this utility model height bracket and detection work platformses；
Fig. 5 is the model basic figure obtained after this utility model cutting workpiece digital-to-analogue；
Fig. 6 is the scale-up figure of the cross section profile figure on this utility model model foundation drawing；
Fig. 7 is this utility model using the pruned detection template drawing that completes of designing afterwards of model foundation drawing；
Fig. 8 is that this utility model completes positioning support template drawing using the pruned rear design of model foundation drawing；
Fig. 9 be this utility model actual parts on detection means with detection model between graph of a relation.
In figure, 7. packing ring of workbench 2. pressing plate, 3. screw, 4. alignment pin, 5. support, 6. screw, 8. nut is 1. detected
9. positioning supports 10. workpiece of model 11. to detect model.
Specific embodiment
Embodiment of the present utility model is described below in conjunction with the accompanying drawings, but this utility model is not limited thereto：
As shown in figure 1, a kind of detection means of heavy section three-dimensional bending part, by a detection work for being provided with equidistant holes battle array
Make platform 1, the detection model of at least one support 5, at least one, at least three positioning and support model 9 and alignment pin 4, pressing plate 2, spiral shell
Female 8, packing ring 7 and screw 6 are constituted.In addition to detection model 11, remaining parts is standard component to the device, adapts to most of works
The detection measurement requirement of part.
The fundamental parts of this detection means are detection workbench 1, detect that the size of workbench 1 should be according to detected large-scale type
10 size of maximum workpiece in material three-dimensional bending part determines.Detection 1 upper surface Jing polish of workbench, the face are cubing height side
To datum level.Equidistant holes battle array is processed along vertical and horizontal on detection 1 upper surface of workbench, pitch-row is 100mm, per four
The foursquare center processing fixation screwed hole that location hole is constituted.
As shown in Fig. 2 the management and labelling for ease of the detection model of explanation and different parts, by detection workbench 1
Be laterally defined as X-coordinate direction；Longitudinal direction is defined as Y-coordinate direction；The normal direction of detection 1 upper surface of workbench is defined as Z
Coordinate direction；Then on cubing workbench the position in hole can be expressed as (Xn, Yn) (n be 1,2,3,4 ... n).According to said method examine
There is only one numbering the position in all holes surveyed on workbench 1.
As shown in Figure 3, Figure 4, support 5 is made up of base and column, and its central post is rectangular or square, column and base
Fixation is integrally formed.Column is provided with one group of equidistant holes along short transverse arrangement, and pitch-row is 100mm, the hole numbering on column
For, first hole nearest away from base end face is denoted as Z1, other holes be designated as successively Z2, Z3 ... Zn.With thereon two
Hole detection and localization model 11 or positioning support model 9.Two of column are to detect the locating surface of model 11 with hole face (side), two
With the distance between hole face be generally deck hole away from 1/2, i.e. 50mm.Two location holes, pitch-row and hole are machined with 5 base of support
Hang down with the hole axle space of lines on column by detection 1 pitch-row of workbench and aperture size processing, the holes line of centres on base in footpath
Directly.The height of support 5 is determined according to that workpiece 10 for the maximum height being detected in part.Support 5 be used for set up model and
Spatial relationship between detection workbench 1.
Using two location holes in detection platform 15 base of Kong Zhen and support, several supports 5 can be according to big
Type section bar three-dimensional bending part (workpiece) position on detection means is arranged and is arranged, is built into a support group,
A kind of detection model group of workpiece is constructed exactly.
Detection to workpiece should determine that the positioning datum of examined workpiece first, and positioning datum should ensure that workpiece in detection means
Upper accurate positioning and it is easy to measurement, and workpiece should be made reliablely and stablely to be placed in detection means.Due to heavy section three-dimensional bending
Part belongs to elongated class bool, and such part twists into type generally by stretching, bending and torsion, general both without plane and nothing thereon
Straight line.Therefore we select the cross section profile of the three-dimensional mathematical model of part as the positioning datum of the detection means.Due to work
Part 10 is general curved, is to ensure that workpiece 10 stably need at least select three cross section profiles as positioning datum.
Embodiment 1
A kind of detection means of heavy section three-dimensional bending part, by the detection of height bracket 5,27 of detection workbench 1,15
Model 11 and three positioning support model 9 to constitute.The support 5 is fixed on detection workbench 1, and detection model 11 and positioning are propped up
Support model 9 is respectively by two equidistant holes location and installations on column on support 5.1 upper surface of the detection workbench is height
Degree directional reference face, and detect that workbench 1 is machined with spacing for the 120 of 100mm × 100mm along X-coordinate direction and Y-coordinate direction
The Kong Zhen of individual location hole.
The support 5 is made up of base and column, and column is square, is equidistantly offered 5 along short transverse thereon and is determined
Position hole, pitch-row are 100mm, and two sides of column are the locating surface for detecting model 11, and the distance between two sides is 50mm；Bottom
Seat is provided with two location holes, location hole pitch-row and aperture by identical with detection workbench 1, two positioning holes center lines with it is vertical
Axially bored line spatial vertical on post.
Embodiment 2
Detection to workpiece should determine that the positioning datum of examined workpiece 10 first, and positioning datum should ensure that workpiece 10 in detection
Accurate positioning and it is easy to measurement on device, and workpiece 10 should be made reliablely and stablely to be placed in detection means.Due to section bar three-dimensional it is curved
Bent part belongs to elongated class crooked part, and such workpiece 10 twists into type generally by stretching, bending and torsion, general both without flat thereon
Face is also without straight line.Therefore we select the cross section profile of the three-dimensional mathematical model of workpiece as the positioning datum of the detection means.
As workpiece is typically curved, it is to ensure that workpiece stably need at least select three cross section profiles as positioning datum.
Choose a kind of three-dimensional mathematical model of heavy section three-dimensional bending part, through rational coordinate transform adapt it in
In the coordinate system space of detection means, i.e., workpiece is in the range of detection work platformses 1.This work need to consider workpiece and exist
Whether positioning supports reliable and stable on model 9；Workpiece picks and places whether produce interference；Measurement gap error amount whether it is convenient etc. because
Element.Determine that each support 5 exists according to the three-dimensional mathematical model of heavy section three-dimensional bending part locus on detection means
Position on detection work platformses 1, which is put with column and is not exposed to workpiece as nearest principle, by two on 5 base of support
Location hole is aligned with nearest two holes on detection workbench 1, i.e. the position of support 5 determines that.According to said method by 5 edge of support
The length direction for workpiece is booked the region that whole heavy section three-dimensional bending part needs to measure.
The column band hole face for detecting model is installed as tool plan using on support 5 to heavy section three-dimensional bending number of packages
Model does cutting, you can obtain detection model digital-to-analogue cross section contour at the tangent plane.Make rectangle plane piece in the tool plan,
The big I of rectangle is determined by designer, but minimum should include two location holes on column, with two location holes on column
The center of circle centered on section plane make two round center of circle cross hairs.By digital-to-analogue cross section contour, center of circle cross hairs and square
Shape one acts as projection, changes into CAD plane graphs, and this plane graph is defined as model foundation drawing, as shown in Figure 5.Each made
Detection model foundation drawing will be carried out the content of labelling and record, labelling and record and should include：
A. (Xn, Yn) is numbered in hole site of the support 5 on detection work platformses 1；
B. detect hole site numbering (Zn, Zn) of the model on column；
C. in the left or right face of 5 column of support.
There is model foundation drawing, it is possible to design and produce detection model 11 and positioning supports model 9.Detection model is installed
In the hole position of third and fourth, the left side of support 5, this support 5 is arranged on the third and fourth row of secondary series on detection workbench 1
Two position of positioning hole on.
Cubing detection model is designed and produced
With obtain model foundation drawing, make cross section profile line graph similar figures amplify figure, enlarged drawing away from artwork away from
From, according to the profile tolerance tolerance of section bar three-dimensional bending part determine, be usually set to 5mm.As shown in Figure 6.The enlarged drawing that will be obtained
Shape is done appropriate deleting and leaves and takes necessary lines as the detection datum line of workpiece 10, end is made appropriate supplementary cords and is intersected
On the rectangle of model foundation drawing, model rectangle is pruned, form the detection datum line of opening.With the good cross hairs cross point of labelling
Make location hole for the center of circle and mark tolerance.The smooth steel plate of 3mm is selected, is completed to detect the design of template drawing, and is carried out labelling.Such as
Shown in Fig. 7, complete to detect the design of model, by processing and fabricating shown in figure.
Positioning supports designing and producing for model 9
With the model foundation drawing for obtaining, at least three figures are selected, cross section profile line graph is done into appropriate deleting and is left and taken
Necessary lines support line as the positioning of workpiece, end is made appropriate supplementary cords and is intersected on model rectangle；Prune sample
Plate rectangle, the positioning for forming opening support line；Make location hole as the center of circle and mark tolerance with the good cross hairs cross point of labelling.Choosing
The smooth steel plate of 3mm thickness is selected, is completed to position designing and producing for support model 9, and is carried out labelling, as shown in Figure 8.Represent in figure
The positioning is supported on third and fourth hole site that model 9 is arranged on the left of height bracket 5, and this height bracket 5 is arranged on inspection
On survey workbench 1 in two position of positioning hole of the third and fourth row of first row.
The detection model 11 for completing is positioned with two screws 6, packing ring 7 and nut 8 by labelling, support 5 is fixed on
On upper corresponding column side and location hole；Will be fixed with two according to the labelling on model with the support 5 for fixing model
Position pin 4 is positioned on the corresponding position of detection workbench 1, is fixed on detection workbench 1 with screw 3 and pressing plate 2.Successively will
Whole models, support 5 are fixed by labelling.So far, the contour detecting device of heavy section three-dimensional bending profiled member makes assembling
Complete.When the detection means is used to detect the three-dimensional bending forming part of other section bars, only need to make by above-mentioned steps again
A set of model is simultaneously re-assemblied, and the flexibility of the device finds expression in this.
The three-dimensional bending part of brake forming is supported on model 9, to work by the positioning that the position of setting is put into detection means
Part 10 carries out appropriate adjustment makes its reliable location support on model 9 in positioning.After workpiece 10 is fully located in detection means,
Clearance gauge or readable survey tool is can use to measure the gap between workpiece outline and detection model detection datum line,
Read by detection model position, interrecord gap (IGP) is worth, as shown in Figure 9.
Gap width when 10 error free state of workpiece has been preset due to detection model 11 is 5mm, therefore workpiece 10 is arbitrarily being examined
The available table below of profile error value at test sample plate is represented up to formula.
Gap width-the 5mm of profile error value=measurement.
When measurement gap value is equal to 5mm, represent that profile error value of the workpiece at this model is 0；When profile tolerance is missed
When positive number or negative occurs in difference, profile error direction of the workpiece 10 at this model is represented.According to the technical requirements of part,
Judge that whether qualified part is.The overproof position of workpiece 10 can be judged rapidly according to this profile error value, workpiece 10 is adjusted
School is adjusted to mould, equipment.Necessary line, labelling can be carried out to the workpiece after molding using this detection measurement apparatus
Deng.
Inspection of this utility model by measurement and positioning on the profile and detection means of the three-dimensional bending part in detection means
Gap width between test sample plate 11 determines the profile errors value of workpiece, while workpiece three-dimensional bending controlling curve can be measured at this
Point coordinates value at detection model section.Detection cam group at least answers the effective coverage of the whole workpiece of envelope.The detection means structure
The positioning datum and cross section profile detection benchmark of heavy section three-dimensional bending part is built.The support 5 can be in detection workbench 1
It is upper arbitrarily to arrange, the detection and measurement of various shape bending parts are adapted to, belong to a kind of flexible detection device.
Claims (5)
1. a kind of detection means of heavy section three-dimensional bending part, it is characterised in that：By detection workbench (1), at least one
Frame (5), at least one detection model (11) and at least three positioning support model (9) composition；The support (5) is fixed on detection
On workbench (1), detection model (11) and positioning support model (9) to be separately mounted on support (5), and each support (5) energy
Two detections model (11) are enough installed；The support (5) is made up of base and column, and column is provided with along short transverse arrangement
The equidistant holes of 100mm pitch-rows, base are provided with the location hole of two 100mm pitch-rows；Detection workbench (1) upper surface is height
Degree directional reference face, which is transversely provided with the equidistant location hole battle array of 100mm pitch-rows with longitudinal direction；Detection model (11) and positioning
Model (9) is supported to be respectively used to detect workpiece profile degree error and workpiece (10) positioning on detection means.
2. the detection means of a kind of heavy section three-dimensional bending part according to claim 1, it is characterised in that：The support
(5) two alignment pins (4) of Jing are detecting workbench (1) level with the location hole battle array in detection workbench (1) through its base holes
Direction positions, then is fixed in detection workbench (1) by screw (3) by pressing plate (2)；Detection model (11) and positioning
Two Positioning screws (6) of Jing are each existed through perforate thereon with two adjacent equidistant holes on support (5) column respectively for support model (9)
Detection workbench (1) short transverse positioning, then be each secured on support (5) by packing ring (7) and nut (8).
3. the detection means of a kind of heavy section three-dimensional bending part according to claim 1, it is characterised in that：The column
For rectangle column or square column.
4. the detection means of a kind of heavy section three-dimensional bending part according to claim 3, it is characterised in that：The column
Two with hole face for detection model (11) locating surface, two with the distance between hole face be 50mm.
5. the detection means of a kind of heavy section three-dimensional bending part according to claim 1, it is characterised in that：The support
(5) can arbitrarily arrange in detection workbench (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621109887.9U CN206056473U (en) | 2016-10-10 | 2016-10-10 | The detection means of heavy section three-dimensional bending part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621109887.9U CN206056473U (en) | 2016-10-10 | 2016-10-10 | The detection means of heavy section three-dimensional bending part |
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| CN206056473U true CN206056473U (en) | 2017-03-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441033A (en) * | 2016-10-10 | 2017-02-22 | 吉林大学 | Detection device of large-scale section-bar three-dimensional bending component and detection method thereof |
| CN108801914A (en) * | 2018-05-29 | 2018-11-13 | 华中科技大学 | A kind of detection method and detecting system to how groove-shaped panel material forming defects |
-
2016
- 2016-10-10 CN CN201621109887.9U patent/CN206056473U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441033A (en) * | 2016-10-10 | 2017-02-22 | 吉林大学 | Detection device of large-scale section-bar three-dimensional bending component and detection method thereof |
| CN106441033B (en) * | 2016-10-10 | 2019-05-07 | 吉林大学 | The detection device and detection method of heavy section three-dimensional bending part |
| CN108801914A (en) * | 2018-05-29 | 2018-11-13 | 华中科技大学 | A kind of detection method and detecting system to how groove-shaped panel material forming defects |
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