CN113566742A - Detection method for inner groove angle and bottom R angle of dovetail groove - Google Patents
Detection method for inner groove angle and bottom R angle of dovetail groove Download PDFInfo
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- 238000001514 detection method Methods 0.000 title claims abstract description 70
- 239000003292 glue Substances 0.000 claims abstract description 39
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 24
- 239000003431 cross linking reagent Substances 0.000 claims description 20
- -1 polysiloxane Polymers 0.000 claims description 17
- 229920001296 polysiloxane Polymers 0.000 claims description 17
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 17
- 229920002554 vinyl polymer Polymers 0.000 claims description 17
- 239000003054 catalyst Substances 0.000 claims description 16
- 229910052697 platinum Inorganic materials 0.000 claims description 16
- 230000008859 change Effects 0.000 claims description 9
- 238000011084 recovery Methods 0.000 claims description 9
- 238000007689 inspection Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000004615 ingredient Substances 0.000 claims description 3
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- 238000005259 measurement Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical group C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004382 potting Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004413 injection moulding compound Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 238000005289 physical deposition Methods 0.000 description 1
- 238000005240 physical vapour deposition Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
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- 238000012545 processing Methods 0.000 description 1
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
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Abstract
The invention provides a detection method of a groove internal angle and a groove bottom R angle of a dovetail groove, wherein the dovetail groove comprises a bottom surface and a side surface, the groove bottom R angle is arranged at the connecting part of the bottom surface and the side surface, and the presenting angle of the side surface is the groove internal angle; the detection method comprises the steps of adopting the mold-inverting glue to invert the mold in the dovetail groove, standing to obtain an internal model of the dovetail groove, and detecting the size.
Description
Technical Field
The invention relates to the technical field of size detection, in particular to a method for detecting an inner angle of a dovetail groove and an R angle of the bottom of the dovetail groove.
Background
For sputtering targets for physical vapor deposition and deposition disks for chemical vapor deposition, in which dovetail grooves are present inside, it is important to accurately grasp the dimensions of these dovetail grooves. The current detection method can detect the inner angles of the dovetail groove and the R angle of the groove bottom only by cutting the product, so that the first piece of inspection can be carried out only by processing the training product, and all products cannot be detected. And the poor sealing performance possibly caused by the ultra-difference of the sizes of the inner angle and the R angle of the dovetail groove can influence the subsequent use.
CN112797919A discloses a three-dimensional size detection method for a sheave groove of an elevator traction sheave, which comprises the following steps: preparation before detection: the laser emission module enables a contour curve extending along the axial direction of the traction sheave to appear on the traction sheave by adjusting the position of the laser emission module, a camera of the photographing module shoots the contour curve of laser projected to the traction sheave by adjusting the position of the photographing module, and the installation marking block is installed on the traction sheave; obtaining a laser profile curve photo: operating the traction sheave, continuously photographing the traction sheave by a photographing module to obtain a wheel groove surface laser contour line picture of the traction sheave, and selecting a circle of inner wheel groove surface laser contour line picture of the traction sheave; extracting a contour curve: selecting profile curves of the traction sheave which continuously rotate for one circle as a group, and extracting profile curve size data of the laser profile line picture; establishing a three-dimensional geometric model: three-dimensional reconstruction is carried out on the size of the wheel groove according to the diameter of the outer circle of the traction wheel and the data of the size of the contour curve of the laser contour line picture; extracting physical sign geometric data of the wheel groove: fitting and analyzing the three-dimensional geometric model data aiming at each wheel groove section curve, calculating a wheel groove angle, a groove bottom fitting circle diameter, a wheel groove cut angle, a groove bottom width and a distance between a groove bottom fitting circle center and the edge of the traction sheave, and judging the extracted data; defect positioning: the physical sign geometric data of the wheel groove is compared with the standard data, and the specifically positioned defect position is found out according to the data comparison, but the detection method is complex in operation and high in cost.
CN106595420A discloses a method for detecting the size of an annular tongue-and-groove working face, which comprises the following steps: according to the structural characteristics of the mortise and the size of the working face, a minimum size sample plate of the working face of the mortise is designed to meet the minimum size of the mortise in turning; when the mortise is machined in a turning mode, when the machining size is close to the minimum size, the minimum size sample plate is used for checking whether the circular mortise can pass through the working face; if the sample plate passes through, a feeler gauge is added at the measuring reference position; if the thickness of the added feeler gauge is less than or equal to H, the size of the working face of the mortise meets the requirement, wherein H is delta/2 x tg alpha, H is the maximum value of the thickness of the feeler gauge to be added, alpha is the angle between the working face of the mortise and the rotation axis, and delta is the tolerance size, but the detection method has a complex operation process and low accuracy.
CN111102927A discloses a bus duct size detection system, method and device to accomplish bus duct size detection automatically, improve bus duct size measurement's efficiency and precision, improve production efficiency, reduce the manpower that needs, reduce the manufacturing cost of enterprise. The bus duct size detection system comprises an industrial control host, a camera, a position sensor and a first display, wherein the camera, the position sensor and the first display are connected with the industrial control host, and the industrial control host comprises: the position sensor is opposite to the bus duct detection position and is used for monitoring whether the bus duct is located at the bus duct detection position; the camera is opposite to the bus duct detection position and is used for acquiring bus duct images; the industrial control host is used for: when the bus duct is located at a bus duct detection position, controlling a camera to acquire bus duct images, and calculating the phase distance of the bus duct and the bus bar length difference according to the bus duct images; the first display is used for displaying the phase distance of the bus duct and the length difference of the bus bar, but the detection method is complex in operation and high in cost.
Therefore, it is necessary to develop a method for detecting the dimensions of a dovetail groove with high accuracy and a simple detection method.
Disclosure of Invention
In view of the problems in the prior art, the invention provides a detection method for the inner angle of a dovetail groove and the R angle of the bottom of the dovetail groove.
The invention provides a detection method of a groove internal angle and a groove bottom R angle of a dovetail groove, wherein the dovetail groove comprises a bottom surface and a side surface, the groove bottom R angle is arranged at the connecting part of the bottom surface and the side surface, and the presenting angle of the side surface is the groove internal angle; the detection method comprises the steps of adopting the mold-inverting glue to invert the mold in the dovetail groove, standing to obtain an internal model of the dovetail groove, and detecting the size.
The detection method provided by the invention is to adopt the inverse mould glue to carry out inverse mould on the dovetail groove, and the inverse mould glue has the characteristics of quick condensation and no adhesion to other substances, so the inverse mould glue can be used for inverse mould of the dovetail groove, the glue needs to be mixed and put into the dovetail groove by a tool for uniform coating, under the action of gravity, the glue can fill each gap in the groove, then the glue can be taken out after being naturally dried, and the size detection is carried out under a projector.
The side surface presenting angle in the invention is the angle formed by extending two side edges in the front view of the side surface.
Preferably, the radius of the corner R of the groove bottom is 0.2-1.5 mm, such as 0.2mm, 0.4mm, 0.6mm, 0.8mm, 1mm, 1.2mm, 1.3mm or 1.5 mm.
Preferably, the angle of the groove inner angle is 0 to 90 °, for example, may be 0 °, 10 °, 20 °, 30 °, 40 °, 50 °, 60 °, 70 °, 80 °, or 90 °.
When the internal angle of the groove is 0 degree, the presenting angle of the side surface is in the front view of the side surface, the two side edges are parallel to each other, namely, the dovetail groove is a square groove.
Preferably, the inverse mould glue comprises an elastomeric impression material.
The back mold glue can be used for oral cavity back mold glue used in dentist industry, is an impression material with more accurate mold taking in clinic, and has the advantages of time and labor saving and convenient operation; the glue has the characteristics of accurate impression, stable size, quick condensation and no adhesion to other substances, so that the glue can be used for the reverse mould of the dovetail groove. Sufficient agitation is required before the back-mold glue is applied.
Preferably, the elastic recovery rate of the injection molding compound is greater than or equal to 99%, and may be, for example, 99%, 99.1%, 99.2%, 99.3%, 99.4%, 99.5%, 99.6%, 99.7%, 99.8%, 99.9%, or the like.
Preferably, the linear dimension change rate of the back mold glue is less than or equal to 0.2%, such as 0.2%, 0.19%, 0.18%, 0.17%, 0.16%, 0.15%, 0.14%, 0.13%, 0.12%, 0.11%, or 0.1%.
Preferably, the ingredients of the back mold comprise vinyl polysiloxane, a cross-linking agent and a platinum catalyst.
Preferably, the ingredients of the back mold glue further comprise a filler and a pigment.
Preferably, the mass ratio of the vinyl polysiloxane, the cross-linking agent and the platinum catalyst in the reverse mold rubber is (2-4): 2-3): 1, and can be, for example, 2:2:1, 3:2:1, 4:2:1, 2:2.5:1, 3:2.5:1, 4:2.5:1, 2:3:1, 3:3:1 or 4:3: 1.
According to the invention, the mass ratio of vinyl polysiloxane, cross-linking agent and platinum catalyst in the back mold glue is (2-4): 2-3): 1, so that the back mold can be used for accurately printing a mold, is stable in size and can be quickly condensed, self-condensation can be carried out without sticking other substances, the reliability of the back mold process is improved, and the accuracy of size detection is improved.
Preferably, the overmolding comprises substantially filling and compacting the overmolding glue within the dovetail slots.
Preferably, the time for the mold reverse is 1-2 min, for example, 1min, 1.1min, 1.2min, 1.3min, 1.4min, 1.5min, 1.6min, 1.7min, 1.8min, 1.9min or 2 min.
Preferably, the standing time is 3-4 min, for example, 3min, 3.1min, 3.2min, 3.3min, 3.4min, 3.5min, 3.6min, 3.7min, 3.8min, 3.9min or 4 min.
In the invention, standing is to wait for the coagulation of the back mold glue and then take out the back mold glue for size detection.
Preferably, the size detection comprises the step of placing the dovetail groove internal model under a projector for detection.
The projector of the invention comprises an image size measuring instrument.
Compared with the prior art, the invention has at least the following beneficial effects:
(1) according to the detection method for the inner angle of the dovetail groove and the R angle of the bottom of the dovetail groove, the internal structure of the dovetail groove is subjected to reverse molding by adopting the reverse molding glue to obtain the internal model of the dovetail groove, so that the size is detected, the operation process of the detection method is simple, the cost can be reduced, and the product quality is ensured;
(2) the detection method of the inner angle of the dovetail groove and the R angle of the groove bottom has high accuracy, the error of the radius of the R angle of the groove bottom is less than or equal to 0.09mm, the error of the angle of the inner angle of the groove is less than or equal to 0.8 degrees, the error of the radius of the R angle of the groove bottom is less than or equal to 0.04mm, and the error of the angle of the inner angle of the groove is less than or equal to 0.4 degrees under the optimal conditions.
Drawings
Fig. 1 is a schematic structural view of a dovetail groove in embodiment 1 of the present invention.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
The present invention is described in further detail below. The following examples are merely illustrative of the present invention and do not represent or limit the scope of the claims, which are defined by the claims.
First, an embodiment
Example 1
The embodiment provides a method for detecting an inner groove angle and a bottom R angle of a dovetail groove, the dovetail groove comprises a bottom surface and a side surface, a groove bottom R angle with the radius of 0.7mm is arranged at the joint of the bottom surface and the side surface, the presenting angle of the side surface is a groove inner angle, the angle of the groove inner angle is 48 degrees, as shown in fig. 1, the detection method includes performing reverse mold in the dovetail groove by using reverse mold glue, wherein the reverse mold is to fully fill and compact the reverse mold glue in the dovetail groove, the elastic recovery rate of the used reverse mold glue is 99%, the linear size change rate of the reverse mold glue is 0.2%, the mass ratio of vinyl polysiloxane, a cross-linking agent and a platinum catalyst in the reverse mold glue is 3:2.5:1, the cross-linking agent is dicumyl peroxide, standing is performed for 3.5min after the reverse mold is performed for 1.5min to obtain a dovetail groove internal model, and the dovetail groove internal model is placed under an IM-8005 image size measurement projector to perform size detection.
Example 2
The embodiment provides a method for detecting an inner groove angle and a bottom R angle of a dovetail groove, the dovetail groove comprises a bottom surface and a side surface, a groove bottom R angle with the radius of 0.2mm is arranged at the joint of the bottom surface and the side surface, the presenting angle of the side surface is a groove inner angle, the angle of the groove inner angle is 5 degrees, the detection method comprises the steps of adopting an inverted mold rubber to perform inverted mold in the dovetail groove, wherein the inverted mold is to fully fill and compact the inverted mold rubber in the dovetail groove, the elastic recovery rate of the adopted inverted mold rubber is 99%, the linear size change rate of the inverted mold rubber is 0.2%, the mass ratio of vinyl polysiloxane, a cross-linking agent and a platinum catalyst in the inverted mold rubber is 2:2:1, the cross-linking agent is dicumyl peroxide, standing for 3min after the inverted mold is performed for 1min to obtain an internal model of the dovetail groove, and placing the internal model of the dovetail groove under an IM-8005 image size measurement projector to perform size detection.
Example 3
The embodiment provides a method for detecting an inner groove angle and a bottom R angle of a dovetail groove, the dovetail groove comprises a bottom surface and a side surface, the joint of the bottom surface and the side surface is provided with a groove bottom R angle with the radius of 1.5mm, the presenting angle of the side surface is a groove inner angle, the angle of the groove inner angle is 90 degrees, the detection method comprises the steps of adopting an inverted mold rubber to perform inverted mold in the dovetail groove, wherein the inverted mold is to fully fill and compact the inverted mold rubber in the dovetail groove, the elastic recovery rate of the adopted inverted mold rubber is 99%, the linear size change rate of the inverted mold rubber is 0.2%, the mass ratio of vinyl polysiloxane, a cross-linking agent and a platinum catalyst in the inverted mold rubber is 4:3:1, the cross-linking agent is dicumyl peroxide, standing for 4min in the inverted mold for 2min to obtain an internal model of the dovetail groove, and placing the internal model of the dovetail groove under an IM-8005 image size measurement projector to perform size detection.
Example 4
The present embodiment provides a method for detecting an inner groove angle and a bottom R angle of a dovetail groove, where the elastic recovery rate of an inverted mold rubber used in the detection method is 90%, and the rest is the same as that in embodiment 1.
Example 5
The present embodiment provides a method for detecting an inner groove angle and a bottom R angle of a dovetail groove, in which a linear dimension change rate of an undercut used in the detection method is 0.3%, and the rest is the same as in embodiment 1.
Example 6
This example provides a method for detecting the inner corner of a dovetail groove and the bottom R corner of the groove, in which the mass ratio of vinyl polysiloxane, cross-linking agent, and platinum catalyst in the potting compound used in the detection method is 1:2.5:1, and the rest is the same as in example 1.
Example 7
This example provides a method for detecting the inner corner of a dovetail groove and the bottom R corner of the groove, in which the mass ratio of vinyl polysiloxane, cross-linking agent, and platinum catalyst in the potting compound used in the detection method is 5:2.5:1, and the rest is the same as in example 1.
Example 8
This example provides a method for detecting the internal groove angle and the bottom R angle of a dovetail groove, in which the mass ratio of vinyl polysiloxane, cross-linking agent, and platinum catalyst in the inverse mold rubber used in the detection method is 3:1:1, and the rest is the same as in example 1.
Example 9
This example provides a method for detecting the inner corner of a dovetail groove and the bottom R corner of the groove, in which the mass ratio of vinyl polysiloxane, cross-linking agent, and platinum catalyst in the inverse mold rubber used in the detection method is 3:4:1, and the rest is the same as in example 1.
Second, comparative example
Comparative example 1
The comparative example provides a detection method for an inner groove angle and an R groove bottom angle of a dovetail groove, the dovetail groove comprises a bottom surface and a side surface, the R groove bottom angle with the radius of 0.7mm is arranged at the joint of the bottom surface and the side surface, the presenting angle of the side surface is the inner groove angle, the angle of the inner groove angle is 48 degrees, the detection method is to cut the dovetail groove open, and the dovetail groove is placed under an IM-8005 image size measurement projector for size detection.
This comparative example damages the product, causes a waste of resources.
Third, test and results
The error calculation formula is shown in formula (1):
error | actual value-measured value | equation (1)
The test results of the above examples and comparative examples are shown in table 1.
TABLE 1
From table 1, the following points can be seen:
(1) the invention provides a detection method of a groove inner angle and a groove bottom R angle of a dovetail groove, which is characterized in that an inverse mold is adopted to perform inverse mold on an internal structure of the dovetail groove by adopting inverse mold glue to obtain an internal model of the dovetail groove, so that the size detection is performed, the operation process of the detection method is simple, the cost can be reduced, and the product quality is ensured, specifically, the error of the radius of the groove bottom R angle is less than or equal to 0.09mm, the error of the groove inner angle is less than or equal to 0.8 degrees, under the optimal condition, the error of the radius of the groove bottom R angle is less than or equal to 0.04mm, and the error of the groove inner angle is less than or equal to 0.4 degrees;
(2) as can be seen from the combination of the embodiment 1 and the embodiment 4, the elastic recovery rate of the inverse mold rubber in the embodiment 1 is 99%, compared with the elastic recovery rate of the inverse mold rubber in the embodiment 4 being 90%, the error of the radius of the R corner of the groove bottom in the embodiment 1 is 0.03mm, the error of the angle of the inner corner of the groove is 0.2 °, while the error of the radius of the R corner of the groove bottom in the embodiment 4 is 0.07mm, and the error of the angle of the inner corner of the groove is 0.6 °, which indicates that the elastic recovery rate of the inverse mold rubber in the detection method provided by the present invention is within a certain range, and the accuracy of the dovetail groove size detection can be further improved;
(3) by combining the embodiment 1 and the embodiment 5, it can be seen that the linear dimension change rate of the inverse mold rubber in the embodiment 1 is 0.2%, compared with the linear dimension change rate of the inverse mold rubber in the embodiment 5 being 0.3%, the error of the radius of the R corner of the groove bottom in the embodiment 1 is 0.03mm, the error of the angle of the inner corner of the groove is 0.2 °, while the error of the radius of the R corner of the groove bottom in the embodiment 5 is 0.06mm, and the error of the angle of the inner corner of the groove is 0.7 °, which indicates that the linear dimension change rate of the inverse mold rubber in the detection method provided by the present invention is within a certain range, and the accuracy of the dovetail groove dimension detection can be further improved;
(4) by combining the example 1 and the examples 6 to 7, it can be seen that the mass ratio of the vinyl polysiloxane, the cross-linking agent and the platinum catalyst in the inverse mold glue of the example 1 is 3:2.5:1, and compared with the mass ratios of the vinyl polysiloxane, the cross-linking agent and the platinum catalyst in the inverse mold glue of the examples 6 to 7 being 1:2.5:1 and 5:2.5:1 respectively, the error of the radius of the R angle of the groove bottom in the example 1 is 0.03mm, the error of the angle of the inner groove angle is 0.2 °, while the errors of the radius of the R angle of the groove bottom in the examples 6 to 7 being 0.09mm and 0.07mm, and the errors of the angle of the inner groove angle are 0.8 ° and 0.6 °, respectively, thereby indicating that the content of the vinyl polysiloxane in the inverse mold glue is within a certain range in the detection method provided by the present invention, the accuracy of dovetail groove size detection can be further improved;
(5) by combining the example 1 and the examples 8 to 9, it can be seen that the mass ratio of the vinyl polysiloxane, the cross-linking agent and the platinum catalyst in the inverse mold glue of the example 1 is 3:2.5:1, and compared with the mass ratios of the vinyl polysiloxane, the cross-linking agent and the platinum catalyst in the inverse mold glue of the examples 8 to 9 being 3:1:1 and 3:4:1, respectively, the error of the radius of the R angle of the groove bottom in the example 1 is 0.03mm, the error of the angle of the inner angle of the groove is 0.2 °, while the errors of the radius of the R angle of the groove bottom in the examples 8 to 9 are 0.08mm and 0.06mm, and the errors of the angle of the inner angle of the groove are 0.7 ° and 0.8 °, respectively, thereby indicating that the accuracy of the dovetail groove size detection can be further improved in the detection method provided by the present invention, the content of the cross-linking agent in the inverse mold glue is within a certain range;
(6) as can be seen from the combination of the embodiment 1 and the comparative example 1, in the embodiment 1, the inverse mold glue is used for inverse mold of the internal structure of the dovetail groove to obtain an internal model of the dovetail groove, so as to perform size detection, compared with the dovetail groove cut in the comparative example 1 and the size detection is performed, in the embodiment 1, the radius error of the R angle of the groove bottom is 0.03mm, the angle error of the inner angle of the groove is 0.2 °, the radius error of the R angle of the groove bottom is 0.12mm, and the angle error of the inner angle of the groove is 1.4 °, which indicates that the detection method provided by the present invention performs inverse mold of the internal structure of the dovetail groove by using the inverse mold glue to obtain the internal model of the dovetail groove, so as to perform size detection, which can not only avoid waste of products, reduce the cost, but also improve the accuracy of size detection of the dovetail groove.
In summary, the invention provides a method for detecting a groove internal angle and a groove bottom R angle of a dovetail groove, the method comprises the steps of performing reverse molding on an internal structure of the dovetail groove by using reverse molding glue to obtain a dovetail groove internal model, so as to detect the size, the method is simple in operation process, the cost can be reduced, the product quality is ensured, the error of the radius of the groove bottom R angle is less than or equal to 0.09mm, the error of the angle of the groove internal angle is less than or equal to 0.8 °, under an optimal condition, the error of the radius of the groove bottom R angle is less than or equal to 0.04mm, and the error of the angle of the groove internal angle is less than or equal to 0.4 °.
The applicant declares that the present invention illustrates the detailed structural features of the present invention through the above embodiments, but the present invention is not limited to the above detailed structural features, that is, it does not mean that the present invention must be implemented depending on the above detailed structural features. It should be understood by those skilled in the art that any modifications of the present invention, equivalent substitutions of selected components of the present invention, additions of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.
Claims (10)
1. The detection method for the inner angle of the groove and the R angle of the groove bottom of the dovetail groove is characterized in that the dovetail groove comprises a bottom surface and a side surface, the R angle of the groove bottom is arranged at the connecting position of the bottom surface and the side surface, and the presenting angle of the side surface is the inner angle of the groove; the detection method comprises the steps of adopting the mold-inverting glue to invert the mold in the dovetail groove, standing to obtain an internal model of the dovetail groove, and detecting the size.
2. The detection method according to claim 1, wherein the radius of the R corner of the groove bottom is 0.2-1.5 mm.
3. The detection method according to claim 1 or 2, wherein the angle of the inside angle of the groove is 0 to 90 °.
4. The inspection method of any one of claims 1 to 3, wherein the inverse mold compound comprises an elastomeric impression material.
5. The detection method according to any one of claims 1 to 4, wherein the elastic recovery rate of the reverse mold rubber is greater than or equal to 99%;
preferably, the linear size change rate of the back mold glue is less than or equal to 0.2%.
6. The detection method according to any one of claims 1 to 5, wherein the ingredients of the back mold include vinyl polysiloxane, a cross-linking agent and a platinum catalyst;
preferably, the mass ratio of the vinyl polysiloxane, the cross-linking agent and the platinum catalyst in the back mold glue is (2-4): (2-3): 1.
7. The inspection method of any one of claims 1 to 6, wherein the back-molding comprises filling and compacting a back-molding compound in the dovetail groove.
8. The detection method according to any one of claims 1 to 7, wherein the time for the reverse mold is 1 to 2 min.
9. The detection method according to any one of claims 1 to 8, wherein the standing time is 3 to 4 min.
10. The inspection method according to any one of claims 1 to 9, wherein the inspection of the dimension comprises placing the dovetail groove internal model under a projector for inspection.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090220916A1 (en) * | 2005-11-30 | 2009-09-03 | 3Shape A/S | Impression scanning for manufacturing of dental restorations |
| CN102818527A (en) * | 2012-07-11 | 2012-12-12 | 沈阳富创精密设备有限公司 | Method for measuring size of opening of transition arc dovetail groove |
| CN104267030A (en) * | 2014-09-16 | 2015-01-07 | 协鑫阿特斯（苏州）光伏科技有限公司 | Abrasion value detection method of guide wheel for cutting multiple wires |
| CN108662962A (en) * | 2018-07-25 | 2018-10-16 | 沈阳精合数控科技开发有限公司 | A kind of go-no go gauge and its manufacturing method of quick inspection brake lining dovetail size |
| CN110657756A (en) * | 2019-09-03 | 2020-01-07 | 厦门金鹭特种合金有限公司 | Accurate measurement method for concave structure of blade/cutter |
-
2021
- 2021-07-26 CN CN202110844613.3A patent/CN113566742A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090220916A1 (en) * | 2005-11-30 | 2009-09-03 | 3Shape A/S | Impression scanning for manufacturing of dental restorations |
| CN102818527A (en) * | 2012-07-11 | 2012-12-12 | 沈阳富创精密设备有限公司 | Method for measuring size of opening of transition arc dovetail groove |
| CN104267030A (en) * | 2014-09-16 | 2015-01-07 | 协鑫阿特斯（苏州）光伏科技有限公司 | Abrasion value detection method of guide wheel for cutting multiple wires |
| CN108662962A (en) * | 2018-07-25 | 2018-10-16 | 沈阳精合数控科技开发有限公司 | A kind of go-no go gauge and its manufacturing method of quick inspection brake lining dovetail size |
| CN110657756A (en) * | 2019-09-03 | 2020-01-07 | 厦门金鹭特种合金有限公司 | Accurate measurement method for concave structure of blade/cutter |
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