CN106705883B - Circular hole chamfer radian measuring device and method - Google Patents
Circular hole chamfer radian measuring device and method Download PDFInfo
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- CN106705883B CN106705883B CN201611243099.3A CN201611243099A CN106705883B CN 106705883 B CN106705883 B CN 106705883B CN 201611243099 A CN201611243099 A CN 201611243099A CN 106705883 B CN106705883 B CN 106705883B
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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
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
Abstract
The invention discloses a device and a method for measuring the radian of a round hole chamfer, wherein the device comprises a support, an air cylinder for driving the support to move up and down, a first measuring plug gauge, a second measuring plug gauge and a laser ranging unit, wherein the first measuring plug gauge and the second measuring plug gauge are arranged on the support, the first measuring plug gauge comprises a first handle, a first inverted trapezoidal round table and a first sinking table which are sequentially connected from top to bottom, the second measuring plug gauge comprises a second handle, a second inverted trapezoidal round table and a second sinking table which are sequentially connected from top to bottom, the side surface of the first inverted trapezoidal round table forms an included angle of 45 degrees with the vertical direction, and the side surface of the second inverted trapezoidal round table forms an included angle of 47 degrees with the vertical direction. According to the shape of the round hole chamfer, a profiling method is adopted, a first measuring plug gauge and a second measuring plug gauge are arranged, the first measuring plug gauge or the second measuring plug gauge is arranged in the round hole of a product to be measured by driving the support to descend through the air cylinder, the radian measurement value of the round hole chamfer is obtained through calculation according to the corresponding geometric relation, manual measurement is not needed, the efficiency is high, the measurement precision is high, and the misjudgment rate is low.
Description
Technical Field
The invention relates to a device and a method for measuring the radian of a round hole chamfer.
Background
When the work piece is machined, in order to install convenience and product attractiveness and improve use safety, a chamfer is usually machined in an installation hole, and in order to guarantee assembling tightness, the radian of the chamfer needs to be strictly limited and is usually controlled to be 131-135 degrees. After the workpiece is machined, the machined chamfer needs to be measured to detect the qualification of the product, the traditional method is to measure by manually holding a protractor, and the method has the advantages of high labor cost, low working efficiency and low measurement precision and cannot meet the requirement of actual production.
Disclosure of Invention
The invention provides a device and a method for measuring the radian of a round hole chamfer, which are used for solving the problems of high labor cost, low working efficiency and low measurement precision in the prior art.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a round hole chamfer radian measuring device, includes support, drive support elevating movement's cylinder is located in proper order along the horizontal direction first measurement feeler gauge and second measurement feeler gauge and laser range unit on the support, first measurement feeler gauge is including the first handle, first trapezoidal round platform and the first platform that sinks that from top to bottom connect gradually, the second is measured the feeler gauge and is included the second handle, second trapezoidal round platform and the second that from top to bottom connect gradually and sink the platform, the side of first trapezoidal round platform of falling is 45 degrees contained angles with vertical direction, the side of the trapezoidal round platform of falling of second is 47 degrees contained angles with vertical direction.
And the device further comprises a positioning plate arranged below the support, wherein a first station corresponding to the first measuring plug gauge and a second station corresponding to the second measuring plug gauge are arranged on the positioning plate.
Furthermore, the laser ranging unit corresponds to the first station and the second station in position.
Furthermore, the cylinder and the positioning plate are fixed on a bottom plate.
Further, the first sinking platform and the second sinking platform are both of the cylindrical structure, and the top surface radius corresponds to the bottom surface radius of the first inverted trapezoidal round platform and the second inverted trapezoidal round platform respectively.
The invention also comprises a measuring method of the device for measuring the radian of the chamfer of the round hole, which comprises the following steps:
s1: determining the tolerance zone range of the round hole chamfer of the tested product;
s2: the first measuring plug gauge is placed in a round hole of a product to be measured, and the laser ranging unit measures the vertical distance between the top surface of the first inverted trapezoidal round table and the upper surface of the product to be measured and the outer diameter of the contact surface between the first inverted trapezoidal round table and the bottom of the round hole, so that a first radian measurement value of the round hole chamfer is calculated;
s3: placing a second measuring plug gauge in a round hole of a product to be measured, measuring the vertical distance between the top surface of the second inverted trapezoidal round table and the upper surface of the product to be measured and the outer diameter of the contact surface between the second inverted trapezoidal round table and the bottom of the round hole by using a laser ranging unit, and calculating according to the inner diameter of the top of the round hole and the outer diameter of the top surface of the second inverted trapezoidal round table to obtain a second radian measurement value of the round hole chamfer;
s4: and judging whether the first radian measurement value and the second radian measurement value exceed the tolerance band range, if not, determining that the product is qualified, otherwise, determining that the product is unqualified.
Further, in step S1, the tolerance band ranges from 131 ° to 135 °.
Further, in step S2, the method further includes placing the product to be measured in the first station corresponding to the first measuring plug gauge, and the cylinder drives the bracket to descend so that the first measuring plug gauge is placed in the circular hole of the product to be measured.
Further, in step S3, the product to be measured is placed in the second station corresponding to the second measuring plug gauge, and the cylinder drives the bracket to descend, so that the second measuring plug gauge is placed in the circular hole of the product to be measured.
Further, the step S4 further includes that, when the first radian measurement value or the second radian measurement value is greater than the tolerance band upper limit, according to the top inner diameter of the circular hole, the top surface outer diameter of the first inverted trapezoidal circular truncated cone, the vertical distance between the top surface of the first inverted trapezoidal circular truncated cone and the upper surface of the product to be measured, and the outer diameter of the contact surface between the first inverted trapezoidal circular truncated cone and the bottom of the circular hole, the third radian measurement value of the circular hole chamfer is calculated, and whether the third radian measurement value is greater than the tolerance band upper limit is determined.
The device comprises a support, an air cylinder for driving the support to move up and down, a first measuring plug gauge, a second measuring plug gauge and a laser ranging unit, wherein the first measuring plug gauge, the second measuring plug gauge and the laser ranging unit are sequentially arranged on the support along the horizontal direction, the first measuring plug gauge comprises a first handle, a first inverted trapezoidal round table and a first sinking table which are sequentially connected from top to bottom, the second measuring plug gauge comprises a second handle, a second inverted trapezoidal round table and a second sinking table which are sequentially connected from top to bottom, the side face of the first inverted trapezoidal round table forms an included angle of 45 degrees with the vertical direction, and the side face of the second inverted trapezoidal round table forms an included angle of 47 degrees with the vertical direction. According to the method of copying the round hole chamfer, a first measuring plug gauge with a first inverted trapezoid round table and a second measuring plug gauge with a second inverted trapezoid round table are designed, the side faces of the first inverted trapezoid round table and the second inverted trapezoid round table are in chamfer shapes similar to the round hole chamfer, the first measuring plug gauge or the second measuring plug gauge is placed in the round hole of a product to be measured by driving a support to descend through an air cylinder, and according to corresponding geometric relations, namely the top inner diameter of the round hole, the top surface diameter of the inverted trapezoid round table and the vertical distance between the top surface of the inverted trapezoid round table and the top of the round hole, the radian measured value of the round hole chamfer can be calculated.
Drawings
FIG. 1 is a schematic diagram of the structure of a product to be tested according to the present invention;
FIG. 2 is a side view of the device for measuring the chamfer angle radian of a circular hole of the present invention;
figures 3a, 3b are schematic structural views of a first measuring plug gauge and a second measuring plug gauge, respectively, according to the present invention;
FIG. 4 is a schematic view of a first measuring plug gauge of the present invention positioned within a round hole of a product to be measured;
FIG. 5 is a schematic view of the position of the first measuring plug gauge and the product to be measured when the radian of the chamfer of the circular hole is greater than 135 °;
FIG. 6 is a schematic diagram of the positions of the first measuring plug gauge and the product to be measured when the radian of the chamfer of the circular hole is greater than 135 deg.
Shown in the figure: 1. a support; 2. a cylinder; 3. a first measuring plug gauge; 31. a first handle; 32. a first inverted trapezoidal round table; 33. a first sinking platform; 4. a second measuring plug gauge; 41. a second handle; 42. a second inverted trapezoidal round table; 43. a second sinking platform; 5. chamfering the round hole; 6. a product to be tested; 7. positioning a plate; 71. a second station; 8. a base plate.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
as shown in fig. 2-3b, the present invention provides a round hole chamfer radian measuring device, which is used for measuring the radian of a round hole chamfer 5 in a product 6 to be measured as shown in fig. 1, and comprises a bracket 1, an air cylinder 2 for driving the bracket 1 to move up and down, a first measuring plug gauge 3 and a second measuring plug gauge 4 which are sequentially arranged on the bracket 1 along a horizontal direction, and a laser ranging unit (not shown in the figure), wherein the first measuring plug gauge 3 comprises a first handle 31, a first inverted trapezoid round table 32 and a first sinking table 33 which are sequentially connected from top to bottom, the second measuring plug gauge 4 comprises a second handle 41, a second inverted trapezoid round table 42 and a second sinking table 43 which are sequentially connected from top to bottom, as shown in fig. 3a-3b, an included angle of 45 degrees is formed between the side surface of the first inverted trapezoid round table 32 and the vertical direction, that is, an obtuse angle formed between the bottom surface and the side surface of the first inverted trapezoid round table 32 is 135, the side face of the second inverted trapezoidal round table 42 is an included angle of 47 degrees with the vertical direction, namely, an obtuse angle formed between the bottom face and the side face of the first inverted trapezoidal round table 42 is 137 degrees, and is similar to the shape of the round hole chamfer 5, when the measurement is carried out, the support 1 is driven to descend through the air cylinder 2, so that the first measuring plug gauge 3 or the second measuring plug gauge 4 is arranged in the round hole of the product 6 to be measured, according to the corresponding geometric relation, namely, the top inner diameter of the round hole (namely the outermost side of the round hole chamfer 5), the top face diameter of the inverted trapezoidal round table and the vertical distance between the top face of the inverted trapezoidal round table and the top of the round hole can be calculated to obtain the radian measurement value of the round hole chamfer 5, the radian measurement value is compared with the set tolerance zone range, if the set tolerance zone range is not exceeded, the product 6.
Preferably, the circular hole chamfer radian measuring device further comprises a positioning plate 7 arranged below the support 1, a first station (not marked in the figure) corresponding to the first measuring plug gauge 3 and a second station 71 corresponding to the second measuring plug gauge 4 are arranged on the positioning plate 7, a product 6 to be measured is placed in the first station or the second station 71, and the first measuring plug gauge 3 or the second measuring plug gauge 4 is driven by the cylinder 2 to move downwards until being completely positioned in the circular hole chamfer 5.
Preferably, the position of the laser ranging unit corresponds to the first station and the second station 71, and can be located between the first station and the second station for after the first measuring plug gauge 3 or the second measuring plug gauge 4 is located the round hole chamfer 5, the top inner diameter of the round hole, the top surface diameter of the inverted trapezoid round table and the vertical distance between the top surface of the inverted trapezoid round table and the top of the round hole are measured, so that the radian measurement value of the round hole chamfer 5 is obtained.
Preferably, the positioning plate 7 and the cylinder 2 are mounted on a bottom plate 8.
Preferably, the first sinking platform 33 and the second sinking platform 43 are of cylindrical structures, and the top surface radius corresponds to the bottom surface radius of the first inverted trapezoidal circular truncated cone 32 and the second inverted trapezoidal circular truncated cone 42 respectively.
The invention also provides a measuring method of the device for measuring the radian of the chamfer of the round hole, which comprises the following steps:
s1: determining the tolerance zone range of the round hole chamfer of the tested product; in this embodiment, the tolerance zone range of the round hole chamfer is 131-135 degrees, that is, the arc value of the round hole chamfer 5 is within the range, and the round hole chamfer belongs to a qualified product, otherwise, the round hole chamfer is an unqualified product.
S2: the first measuring plug gauge 3 is placed in a round hole of a product 6 to be measured, the laser ranging unit measures the vertical distance between the top surface of the first inverted trapezoidal round table 32 and the upper surface of the product 6 to be measured and the outer diameter of the contact surface of the first inverted trapezoidal round table 32 and the bottom of the round hole, and a first radian measurement value of the round hole chamfer 5 is obtained through calculation according to the inner diameter of the top of the round hole and the outer diameter of the top surface of the first inverted trapezoidal round table 32; specifically, the inner diameter of the top of the circular hole and the outer diameter of the top surface of the first inverted trapezoidal round table 32 are fixed and known. The step also comprises the step of placing a product 6 to be measured in a first station corresponding to the first measuring plug gauge 3, and driving the support 1 to descend by the cylinder 2 so that the first measuring plug gauge 3 is placed in a round hole of the product to be measured. As shown in fig. 4-5, the height of the product 6 to be measured is a, the height of the round hole chamfer 5 is b, the inner diameter of the top of the round hole is OD, and the outer diameter of the contact surface of the first inverted trapezoidal round table 32 and the bottom of the round hole is ID1The outer diameter of the top surface of the first inverted trapezoidal round table 32 is D1The distance delta s between the top surface of the first inverted trapezoidal round table 32 and the upper surface of the product 6 to be measured1And the radian of the round hole chamfer 5 is theta, the following relation is provided:
a＝(OD-ID1)/2×tan(180-θ)；
b＝(OD-D1)/2×tan(180-θ)；
then Δ s1＝b＝(OD-D1)/2×tan(180-θ)；
In this embodiment, the outer diameter D of the top surface of the first inverted trapezoidal round table 32110.60mm, so when the laser ranging unit measures the inside diameters OD and Δ s of the top of the circular hole1Then, a first radian measurement θ 1 of the round chamfer 5 is obtained.
S3: the second measuring plug gauge 4 is arranged in a round hole of a product 6 to be measured, the laser ranging unit measures the vertical distance between the top surface of the second inverted trapezoidal round table 42 and the upper surface of the product 6 to be measured and the outer diameter of the contact surface between the second inverted trapezoidal round table and the bottom of the round hole,calculating to obtain a second radian measurement value of the round hole chamfer according to the top inner diameter of the round hole, the top surface outer diameter of the second inverted trapezoidal round table 42; specifically, the top inner diameter of the circular hole and the top outer diameter of the second inverted trapezoidal round table 42 are fixed and known. The step also comprises the step of placing a product 6 to be measured in a second station 71 corresponding to the second measuring plug gauge 4, and driving the support 1 to descend by the cylinder 2 so as to place the second measuring plug gauge 4 in a round hole of the product to be measured. Similarly, the height of the product 6 to be measured is a, the height of the round hole chamfer 6 is b, the inner diameter of the top of the round hole is OD, and the outer diameter of the contact surface of the second inverted trapezoidal round table 42 and the bottom of the round hole is ID2The outer diameter of the top surface of the second inverted trapezoidal round table 42 is D2The distance delta s between the top surface of the second inverted trapezoidal round table 42 and the upper surface of the product 6 to be measured2And the radian of the round hole chamfer 5 is theta, the following relation is provided:
a＝(OD-ID2)/2×tan(180-θ)；
b＝(OD-D2)/2×tan(180-θ)；
then Δ s2＝b＝(OD-D2)/2×tan(180-θ)；
In this embodiment, the outer diameter D of the top surface of the second inverted trapezoidal round table 42210.57mm, so when the laser ranging unit measures the inside diameters OD and Δ s of the top of the circular hole2Then, a second radian measurement θ 2 of the round chamfer 5 is obtained.
S4: and judging whether the first radian measurement value theta 1 and the second radian measurement value theta 2 exceed the tolerance band range, if the first radian measurement value theta 1 and the second radian measurement value theta 2 do not exceed the tolerance band range, determining that the product is qualified, otherwise, determining that the product is unqualified. Namely, whether the first radian measurement value theta 1 and the second radian measurement value theta 2 meet the conditions that theta 1 is larger than or equal to 131 degrees and is smaller than or equal to 135 degrees, theta 2 is larger than or equal to 131 degrees and is smaller than or equal to 135 degrees is judged, if yes, the product 6 to be measured is a qualified product, and if not, the product is an unqualified product.
In order to further determine the judgment result, when the first radian measurement value theta 1 and the second radian measurement value theta 2 are greater than the upper limit of the tolerance band, namely greater than 135 degrees, according to the inner diameter of the top of the circular hole, the outer diameter of the top surface of the first inverted trapezoidal circular truncated cone 32, the top surface of the first inverted trapezoidal circular truncated cone 32 and the product 6 to be measuredThe vertical distance on the surface and the outer diameter of the contact surface between the first inverted trapezoid round platform and the bottom of the round hole are calculated to obtain a third measured value of the radian of the round hole, and the third measured value is judged to determine whether the third radian is greater than the upper limit of the tolerance zone, as shown in fig. 6, the height of the product 6 to be measured is a, the height of the round hole chamfer 6 is b, the inner diameter of the top of the round hole is OD, and the outer diameter of the contact surface between the first inverted trapezoid round platform 32 and the bottom of the round hole is ID1The outer diameter of the top surface of the first inverted trapezoidal round table 32 is D1The distance delta s between the top surface of the first inverted trapezoidal round table 32 and the upper surface of the product 6 to be measured1The distance c from the top surface of the first inverted trapezoidal round table 32 to the lower surface of the product 6 to be measured, and the radian of the round hole chamfer 5 is theta, the following relational expression is provided:
a＝(OD-ID1)/2×tan(180-θ)；
c＝(D1-ID1)/2；
then Δ s1＝a-c＝(OD-ID1)/2×tan(180-θ)-(D1-ID1)/2；
In this embodiment, the outer diameter D of the top surface of the first inverted trapezoidal round table 32110.60mm, so when the laser ranging unit measures the inside diameters OD and Δ s of the top of the circular hole1Then, a third radian measurement θ 3 of the round chamfer 5 is obtained. And if the theta 3 is larger than or equal to 135 degrees, determining that the product 6 to be detected is an unqualified product.
In summary, the device and the method for measuring the chamfer radian of the circular hole provided by the invention comprise a bracket 1, a cylinder 2 for driving the bracket 1 to move up and down, a first measuring plug gauge 3, a second measuring plug gauge 4 and a laser ranging unit, wherein the first measuring plug gauge 3 comprises a first handle 31, a first inverted trapezoidal circular table 32 and a first sinking table 33 which are sequentially connected from top to bottom, the second measuring plug gauge 4 comprises a second handle 41, a second inverted trapezoidal circular table 42 and a second sinking table 43 which are sequentially connected from top to bottom, the side surface of the first inverted trapezoidal circular table 32 forms an included angle of 45 degrees with the vertical direction, and the side surface of the second inverted trapezoidal circular table 42 forms an included angle of 47 degrees with the vertical direction. According to the shape of the round hole chamfer 5, a copying method is adopted, a first measuring plug gauge 3 with a first inverted trapezoid round table 32 and a second measuring plug gauge 4 with a second inverted trapezoid round table 42 are designed, the side faces of the first inverted trapezoid round table 32 and the second inverted trapezoid round table 42 are in chamfer shapes similar to the round hole chamfer 5, the first measuring plug gauge 3 or the second measuring plug gauge 4 is placed in a round hole of a product 6 to be measured by driving the support 1 to descend through the air cylinder 2, and according to corresponding geometric relations, namely the top inner diameter of the round hole, the top outer diameter of the inverted trapezoid round table and the vertical distance between the top face of the inverted trapezoid round table and the upper surface of the product 6 to be measured, the radian measurement value of the round hole chamfer 5 can be calculated.
Although the embodiments of the present invention have been described in the specification, these embodiments are merely provided as a hint, and should not limit the scope of the present invention. Various omissions, substitutions, and changes may be made without departing from the spirit of the invention and are intended to be within the scope of the invention.
Claims (5)
1. A method for measuring the radian of a round hole chamfer is characterized by comprising the following steps:
s1: determining the tolerance zone range of the round hole chamfer of the tested product;
s2: the method comprises the steps that a first measuring plug gauge is arranged in a round hole of a product to be measured, a laser ranging unit measures the vertical distance between the top surface of a first inverted trapezoidal round table and the upper surface of the product to be measured and the outer diameter of the contact surface between the first inverted trapezoidal round table and the bottom of the round hole, and a first radian measurement value of a round hole chamfer is obtained through calculation according to the inner diameter of the top of the round hole and the outer diameter of the top surface of the first inverted trapezoidal round table;
s3: placing a second measuring plug gauge in a round hole of a product to be measured, measuring the vertical distance between the top surface of the second inverted trapezoidal round table and the upper surface of the product to be measured and the outer diameter of the contact surface between the second inverted trapezoidal round table and the bottom of the round hole by using a laser ranging unit, and calculating according to the inner diameter of the top of the round hole and the outer diameter of the top surface of the second inverted trapezoidal round table to obtain a second radian measurement value of the round hole chamfer;
s4: and judging whether the first radian measurement value and the second radian measurement value exceed the tolerance band range, if not, determining that the product is qualified, otherwise, determining that the product is unqualified.
2. The measuring method according to claim 1, wherein in the step S1, the tolerance band ranges from 131 ° to 135 °.
3. The measuring method according to claim 1, wherein the step S2 further comprises placing the product to be measured in the first station corresponding to the first measuring plug gauge, and the cylinder drives the support to descend to place the first measuring plug gauge in the circular hole of the product to be measured.
4. The measuring method according to claim 1, wherein in step S3, the product to be measured is placed in the second station corresponding to the second measuring plug gauge, and the cylinder drives the support to descend so that the second measuring plug gauge is placed in the circular hole of the product to be measured.
5. The measuring method according to claim 1, wherein the step S4 further includes, when the first radian measurement value or the second radian measurement value is greater than the upper limit of the tolerance band, calculating a third radian measurement value of the round hole chamfer according to the top inner diameter of the round hole, the top outer diameter of the first inverted trapezoidal circular truncated cone, the vertical distance between the top surface of the first inverted trapezoidal circular truncated cone and the upper surface of the product to be measured, and the outer diameter of the contact surface between the first inverted trapezoidal circular truncated cone and the bottom of the round hole, and determining whether the third radian measurement value is greater than the upper limit of the tolerance band.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611243099.3A CN106705883B (en) | 2016-12-29 | 2016-12-29 | Circular hole chamfer radian measuring device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611243099.3A CN106705883B (en) | 2016-12-29 | 2016-12-29 | Circular hole chamfer radian measuring device and method |
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| CN106705883A CN106705883A (en) | 2017-05-24 |
| CN106705883B true CN106705883B (en) | 2019-12-31 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107917656B (en) * | 2017-11-30 | 2019-08-13 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of miniature chamfering measuring device of turbine disk hole edge and its measurement method |
| CN108050934B (en) * | 2017-12-25 | 2020-07-14 | 武汉比天科技有限责任公司 | Visual vertical positioning method for workpiece with chamfer |
| CN108195319B (en) * | 2017-12-25 | 2020-07-14 | 武汉比天科技有限责任公司 | Visual oblique positioning method for workpiece with chamfer |
| CN109238156A (en) * | 2018-07-27 | 2019-01-18 | 天津大学 | Backlight image-type roller root bottom part chamfering measurement method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| ITPI20060067A1 (en) * | 2006-06-06 | 2007-12-07 | Examina Spa | SYSTEM FOR CHECKING THE BEVEL OF A PIANO OBJECT |
| CN203216463U (en) * | 2013-05-21 | 2013-09-25 | 李武元 | Digital display measuring instrument used for measuring angle of inner hole chamfer of workpiece |
| CN204027504U (en) * | 2014-06-23 | 2014-12-17 | 烟台正海磁性材料股份有限公司 | A kind of inner bore chamfering measurement mechanism |
| CN104180737A (en) * | 2014-09-22 | 2014-12-03 | 重庆红旗缸盖制造有限公司 | Plug gauge |
| CN204478961U (en) * | 2015-04-08 | 2015-07-15 | 福士汽车零部件（济南）有限公司 | Chamfer gage is detected in a kind of quick connector moulding hole |
| CN205262379U (en) * | 2015-11-25 | 2016-05-25 | 重庆渝记涵诚机械制造有限公司 | Cylinder head intake and exhaust port chamfer measuring tool |
| CN105478367B (en) * | 2015-12-31 | 2017-12-26 | 苏州逸美德科技有限公司 | A kind of chamfer detecting device and detection method |
| CN205289006U (en) * | 2015-12-31 | 2016-06-08 | 苏州逸美德科技有限公司 | Chamfer detector |
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Address after: 215000 Suzhou 15 industrial park, Jiangsu Patentee after: Yimei Technology Co., Ltd Address before: Suzhou City, Jiangsu province 215000 Industrial Park Tang Zhuang Road No. 88 Patentee before: SUZHOU YIMEIDE TECHNOLOGY CO., LTD. |