CN109631761B - Square plate shape position tolerance detection device - Google Patents
Square plate shape position tolerance detection device Download PDFInfo
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- CN109631761B CN109631761B CN201910040053.9A CN201910040053A CN109631761B CN 109631761 B CN109631761 B CN 109631761B CN 201910040053 A CN201910040053 A CN 201910040053A CN 109631761 B CN109631761 B CN 109631761B
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- 238000001514 detection method Methods 0.000 title claims abstract description 107
- 230000007246 mechanism Effects 0.000 claims abstract description 83
- 238000006073 displacement reaction Methods 0.000 claims abstract description 37
- 239000000725 suspension Substances 0.000 claims description 16
- 238000005452 bending Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 2
- 239000000523 sample Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
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Abstract
The invention provides a square plate shape position tolerance detection device which comprises a platform, wherein a first guide rail is arranged in the horizontal direction of the platform, one end of the first guide rail is provided with a first moving part in a sliding manner, the other end of the first guide rail is provided with a second moving part in a sliding manner, the outer end of the second guide rail is provided with a third moving part in a sliding manner, each of the first moving part, the second moving part and the third moving part is provided with a supporting mechanism, the second moving part and the third moving part are provided with positioning mechanisms corresponding to a square plate, and the first moving part is provided with an angle displacement sensor for measuring the square plate right angle deviation. According to the square plate shape position tolerance detection device, support detection of square plates of different specifications is achieved, the angle displacement sensor for detecting right-angle deviation sides of the square plates, the first detection mechanism and the second detection mechanism are arranged, flat plate flatness detection is achieved, automatic detection of square plate shape tolerance is achieved through the sensor, and detection accuracy is improved.
Description
Technical Field
The invention belongs to the field of square plate shape and position tolerance, and particularly relates to a square plate shape and position tolerance detection device.
Background
In the existing square plate such as ceramic tile production, tolerance measurement such as angle deviation, flatness deviation and side edge straightness, namely straightness and the like is needed, whether a product is qualified or not is finally judged through detection of the form and position tolerance, in the existing tolerance detection, the use of the detection tool is usually finished through a guiding rule, interference factors are considered to be serious, and therefore the detection result cannot truly accurately reflect the form and position tolerance of the square plate.
Disclosure of Invention
In view of the above, the invention aims to provide a square plate shape and position tolerance detection device so as to realize rapid and accurate detection of square plate shape and position tolerance.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
The utility model provides a square plate shape position tolerance detection device, including platform and the detecting element who detects square plate shape tolerance, this platform is gone up Y direction and is provided with first guide rail, and its X direction is equipped with the second guide rail, and first guide rail and second guide rail are crossing, and first guide rail slides and is equipped with first moving part, and second guide rail slides and is equipped with the third moving part, and first moving part, third moving part and platform are being close to second guide rail and first guide rail crossing position department and are equipped with supporting element respectively, and three supporting mechanism top surface parallel and level forms a horizontal supporting plane, and three right angles one-to-one in three supporting mechanism and four right angles of square plate set up, the platform is equipped with the stop gear that square plate detection right angle X, Y direction position was limited in setting up second guide rail position department.
Further, the detecting unit comprises a side straightness displacement sensor for detecting the straightness of the right-angle X side of the square plate, a third detecting mechanism for detecting the bending degree of the right-angle X side of the square plate, a first detecting mechanism for detecting the bending degree of the square plate bottom surface at the position where the square plate bottom surface is not supported by the supporting mechanism, a second detecting mechanism for detecting the concave-convex state of the center of the square plate bottom surface, an angle displacement sensor for measuring the deviation of the right-angle Y side of the square plate, and a side length displacement sensor for detecting the side length of the right-angle Y side of the square plate.
Further, the first detection mechanism, the second detection mechanism and the third detection mechanism respectively comprise a first magnetic meter seat, a measuring rod and a detection instrument, the measuring rod is hinged to the upright rod of the first magnetic meter seat through a hinge pin which is horizontally arranged, one end of the measuring rod is upwards provided with a contact which is used for being contacted with the bottom surface of the square plate, the detection instrument is arranged at the other end of the measuring rod, the detection instrument is a dial indicator or a dial indicator, and the measuring head of the detection instrument is downwards pressed against the measuring rod.
Further, positioning mechanism includes first locating lever, second locating lever and third locating lever, and wherein, first locating lever sets up on the third removes, and second locating lever and third locating lever set up on the platform, and first locating lever level X direction setting, first locating lever and third locating lever outer end parallel and level, second guide rail and first guide rail crossing position department correspond supporting element, second locating lever and third locating lever and set up next to each other.
Further, the second guide rail is also provided with a second moving part in a sliding manner, the second guide rail is fixedly arranged on the second moving part, the Y-direction position change of the second guide rail is realized, and the corresponding supporting element at the intersection of the first guide rail and the second guide rail is arranged on the second moving part.
Further, positioning mechanism includes first locating lever, second locating lever and third locating lever, and wherein, first locating lever sets up on the third removes, and second locating lever and third locating lever set up on the second removes respectively, and first locating lever, third locating lever level Y orientation set up, and first locating lever level X orientation sets up, and first locating lever and third locating lever outer end parallel and level, support element, second locating lever and the third locating lever on the third removes are closely set up.
Further, the platform is provided with a first scale in the y direction and a second scale in the X direction, wherein the zero point of the first scale is arranged at the center of the first scale, and the first moving part and the second moving part are symmetrically arranged about the zero point of the scale.
Further, the angle displacement sensor, the side length displacement sensor and the side straightness sensor are respectively laser displacement sensors, and the first detection mechanism, the second detection mechanism and the third detection mechanism are contact type displacement sensors.
Compared with the prior art, the square plate shape tolerance detection device provided by the invention has the following advantages:
According to the square plate shape and position tolerance detection device, the supporting mechanism for supporting the square plates is arranged on the platform and can move to support and detect the square plates with different specifications, meanwhile, the angle displacement sensor for detecting the right angle deviation side of the square plate is arranged, the first detection mechanism and the second detection mechanism are used for detecting the flatness of the square plate, the detection is completed through the sensor, the automatic detection of the square plate shape and position tolerance is realized, the detection efficiency is improved, and the detection accuracy is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute an undue limitation on the invention. In the drawings:
FIG. 1 is a schematic diagram of a square plate form and position tolerance detection device;
FIG. 2 is a schematic diagram of the first, second and third detecting mechanisms in a square plate shape and position tolerance detecting device;
FIG. 3 is a schematic view of a suspension support mechanism in a square plate shape position tolerance detection device;
Reference numerals illustrate:
1-a second positioning rod; 2-a first guide rail; 3-a second scale; 4-a set screw; 5-a second mover; 6-a positioning mechanism; 7-a first scale; 9-a platform; 10-a supporting mechanism; 11-a first moving member; 12-an angular displacement sensor; 13-a side length displacement sensor; 15-a first detection mechanism; 16-a third detection mechanism; 18-a second detection mechanism; 21-a third mover; 22-a first positioning rod; 17-a third positioning rod; 18-a second detection mechanism; 25-edge straightness displacement sensor; 27-a first magnetometer mount; 28-measuring rod; 29-contacts; 30-hinging pin; 31-detecting instrument, 32-second magnetic seat; 33-a spring; 34-support blocks.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the invention, it should be understood that the terms "center," "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships that are based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operate in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art in a specific case.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1, a square plate shape position tolerance detection device comprises a platform 9, a first guide rail 2 is arranged on the platform 9 in the horizontal Y direction, a first moving member 11 is arranged at one end of the first guide rail 2 in a sliding manner, a second moving member 5 is arranged at the other end of the first guide rail 2 in a sliding manner, a set screw 4 for locking the first moving member 11 and the second moving member 5 is respectively arranged on the first moving member 11 and the second moving member 5, a second guide rail 23 which is horizontal and vertical to the first guide rail 2 is arranged on the second moving member 5, the second guide rail 23 is arranged along the X direction, a third moving member 21 is arranged at the outer end of the second guide rail 23 in a sliding manner, a locking screw for locking the position of the third moving member 21 is arranged on the third moving member 21, a supporting mechanism 10 is respectively arranged on the first moving member 11, the second moving member 5 and the third moving member 21, preferably, the supporting mechanism 10 is in a cylindrical structure, the top surfaces of the three supporting mechanisms 10 are flush to form a horizontal supporting plane for supporting the square plate, three supporting mechanisms 10 and three right angles in four right angles of the square plate are arranged in one-to-one correspondence, so that the three supporting mechanisms 10 are connected to form an approximate right triangle structure, wherein the intersection point of the first guide rail 2 and the second guide rail 23 corresponds to the right angle of the approximate right triangle, the right angle of the square plate corresponds to the square plate detection right angle, the second moving member 5 and the third moving member 21 are provided with positioning mechanisms 6 corresponding to the square plate, the positioning mechanisms 6 limit the detection right angle positions, and further limit the detection positions of the square plate, the square plate can be quickly placed in place during detection, the first moving member 11 is provided with an angular displacement sensor 12 for measuring square plate detection right angle deviation, namely X-direction offset distance of the outer end of the square plate detection right angle Y-direction, and the side length displacement sensor 13 for detecting the side length of the right angle Y direction right angle of the square plate, wherein the probe of the side length displacement sensor 13 is arranged in parallel with the first guide rail 2, the angle displacement sensor 12 is arranged close to the supporting element 10 on the first moving part 11, the probe of the angle displacement sensor 12 is vertically arranged with the first guide rail 11, the platform 9 is movably provided with the first detection mechanism 15 for detecting the warpage of the square plate, and the second detection mechanism 18 for detecting the concave-convex state at the center of the bottom surface of the square plate, and the warpage detection is only needed for detecting the vertical position deviation of the right angle which is not supported by the supporting mechanism 10 through the first detection mechanism 15, namely, detecting the right angle height position of the square plate in a suspension state. The platform is movably provided with a side straightness displacement sensor 25 for detecting the side straightness of the side surface of the counter plate and a third detection mechanism 16 for detecting the concave-convex side end of the bottom surface of the counter plate, wherein the side straightness displacement sensor 25 is used for detecting the side straightness of the right angle side of the right angle corresponding to the second guide rail 23, and the third detection mechanism 16 is used for detecting the bending degree of the right angle side corresponding to the second guide rail 23 in the vertical direction. Preferably, the edge straightness displacement sensor 25 is slidably mounted on the second guide rail 23, in actual operation, the positions of the first moving part 11, the second moving part 5 and the third moving part 21 are timely adjusted according to the size of the square plate, the situation that the bottom surface of the square plate is close to the corresponding square plate straightangle position is guaranteed, then the square plate is placed on the three supporting mechanisms 10, the X direction and the Y direction are limited through the positioning mechanism 6, then the first moving part 11, the second moving part 5 and the third moving part 21 are locked through the set screw 4, the stability of the square plate in the detection process is guaranteed, detection of a detection element is facilitated, detection of the square plate right angle is achieved through the angle displacement sensor 12, detection of the square plate right angle and the edge deviation of the square plate in the right angle is achieved through the edge length displacement sensor 13, detection of the square plate bottom surface is against the buckling degree at the supporting right angle position through the first detection mechanism 15, detection of the buckling degree at the center of the bottom surface of the square plate is achieved through the second detection mechanism 18, detection of the square plate detection of the right angle is achieved through the third detection mechanism 16, and detection of the square plate right angle and the detection of the right angle is achieved through the right angle detection sensor. When the detection device is used for detecting the tolerance of the square plate, the comparison method is adopted, namely, a standard plate of the corresponding model of the square plate is selected according to the number of the square plate to be detected, the standard plate is placed on the detection box, the distance parameters of the detection positions of the standard plate and the standard plate are detected by the detection elements to serve as standards, the standard data are recorded, then the standard plate is taken down, the positions of the detection elements are kept unchanged, the plate to be detected is placed on the detection device, the distance parameters of the detection positions of the square plate to be detected are detected by the detection elements to serve as comparison parameters, the comparison parameters of the same positions are recorded, the comparison parameters of the same positions are compared with the standard parameters, the position deviation values of the detection positions of the square plate to be detected are compared, and then the respective tolerance is calculated according to the corresponding formula of the shape and position tolerance.
In this embodiment, as shown in fig. 2, the first detecting mechanism 15, the second detecting mechanism 18 and the third detecting mechanism 16 respectively include a first magnetometer rest 27, a measuring rod 28 and a detecting instrument 31, the measuring rod 28 is hinged on the upright of the first magnetometer rest through a hinge pin 30 horizontally arranged, one end of the measuring rod 28 is upwardly provided with a contact 29 for contacting with the bottom surface of the square board, the detecting instrument 31 is arranged at the other end of the measuring rod 28, the detecting instrument 31 is a dial indicator or a dial indicator, and the measuring head of the detecting instrument 31 is downwardly pressed against the measuring rod 28. According to the structure, according to the lever principle, a certain elastic expansion amount of a dial indicator or a dial indicator probe is utilized, the vertical displacement amount of the contact 29 and the vertical displacement amount of the probe of the detection instrument 31 are converted, the displacement amount of the contact 29 can be converted through the numerical value of the detection instrument 31, and then the flatness of the center of the square plate, the warpage of the suspension right angle part and the bending of the bottom surface of the square plate corresponding to the center of the end of the second guide rail 23 are obtained. Preferably, as shown in fig. 3, in order to ensure stable support of the square plate, the square plate is suspended at right angles through a suspension support mechanism, as shown in fig. 3, the suspension support mechanism supports a second magnetic seat 32 and a support 34, the support block 34 is arranged on the second magnetic seat 32 through a spring 33, the second magnetic seat 32 of the suspension support mechanism is moved to a proper position, then the second magnetic seat 32 is fixed, the suspension right angles are supported by the support block 34 in an auxiliary suspension manner, three support mechanisms can theoretically realize stable support function of the square plate, but for some heavier objects such as ceramic tiles, the suspension angle end of the square plate can enable the square plate to fall down by the three support mechanisms 10 due to the action of gravity, and the contact pressure of the square plate on the detection instrument 31 is larger under the action of the support of the first detection mechanism 15 and the second detection mechanism 18 only, so that the probe is damaged in long-time detection, therefore, in the design, the suspension support mechanism is arranged at the suspension angle of the square plate, the suspension angle plays a floating support function on the suspension angle, and the stable support function of the square plate by the three support mechanisms is further ensured; thereby realizing the detection of the position tolerance of the square plate shape.
In this embodiment, the angular displacement sensor 12, the edge straightness displacement sensor 25 and the edge length displacement sensor 13 are respectively laser displacement sensors.
In this embodiment, the platform 9 is provided with a first scale 7 at the position where the first guide rail 2 is provided, and a second scale 3 is provided at a position adjacent to the second guide rail 23, wherein the zero point of the first scale 7 is provided at the center thereof, and the first moving member 11 and the second moving member 5 are symmetrically provided with respect to the zero point of the scale 7. This structure is convenient for adjust three supporting mechanism position according to square plate size, improves this measuring device's commonality, and first moving member 11 and second moving member 5 can be adjusted in the middle, and third moving member 21 also can follow second guide rail 23 and remove, guarantees that square plate central point position is unchangeable, and then improves detection efficiency.
In this embodiment, the positioning mechanism 6 includes a first positioning rod 22 disposed on the third moving member 21, and a second positioning rod 1 and a third positioning rod 17 disposed on the second moving member 5, where the first positioning rod 22 and the third positioning rod 17 are respectively horizontal and perpendicular to the second guide rail 23, and the outer ends of the first positioning rod 22 and the third positioning rod 17 are flush with each other, and the second positioning rod 1 is horizontal and perpendicular to the first guide rail 2, and the second positioning rod 1 and the third positioning rod 17 are disposed in close proximity. Preferably, the first positioning rod 22 is arranged next to the supporting mechanism 10 on the third moving member 1, and the second positioning rod 1 and the third positioning rod 17 are arranged next to the supporting mechanism 10 on the second moving member 5, so that the structure can rapidly position two adjacent side edges of the counter plate, and the efficiency is improved.
The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A square plate shape position tolerance detection device is characterized in that: the device comprises a platform (9) and a detection unit for detecting the square plate shape tolerance, wherein a first guide rail (2) is arranged in the Y direction of the platform (9), a second guide rail (23) is arranged in the X direction of the platform, the first guide rail (2) is intersected with the second guide rail (23), a first moving part (11) is arranged on the first guide rail (2) in a sliding mode, a third moving part (21) is arranged on the second guide rail (23) in a sliding mode, supporting elements (10) are respectively arranged at the positions, close to the intersection positions of the second guide rail (23) and the first guide rail (2), of the first moving part (11), the third moving part (21) and the platform (9), the top surfaces of three supporting mechanisms (10) are flush to form a horizontal supporting plane, three right angles in four right angles of the three supporting mechanisms (10) and a square plate are arranged in a one-to-one correspondence mode, and a limiting mechanism for limiting the position of the square plate detection right angle X, Y is arranged at the position of the second guide rail (23).
The detection unit comprises a side straightness displacement sensor (25) for detecting the straightness of the right X side of the square plate, a third detection mechanism (16) for detecting the bending degree of the right X side of the square plate in the vertical direction, a first detection mechanism (15) for detecting the bending degree of the bottom surface of the square plate at the position where the bottom surface of the square plate is not supported by the supporting mechanism, a second detection mechanism (18) for detecting the bending degree of the bottom surface of the square plate at the center, an angle displacement sensor (12) arranged on the first moving part (11) and used for measuring the deviation of the right Y side of the square plate, and a side length displacement sensor (13) used for detecting the length of the right Y side of the right X side of the square plate;
The first detection mechanism (15), the second detection mechanism (18) and the third detection mechanism (16) respectively comprise a first magnetic meter seat (27), a measuring rod (28) and a detection instrument (31), wherein the measuring rod (28) is hinged on a vertical rod of the first magnetic meter seat through a hinge pin (30) which is horizontally arranged, one end of the measuring rod (28) is upwards provided with a contact (29) which is used for being contacted with the bottom surface of the square plate, the detection instrument (31) is arranged at the other end of the measuring rod (28), the detection instrument (31) is a dial indicator or a dial indicator, and a measuring head of the detection instrument (31) is downwards pressed on the measuring rod (28);
The angle displacement sensor (12), the side length displacement sensor (13) and the side straightness sensor (25) are respectively laser displacement sensors, and the first detection mechanism (15), the second detection mechanism (18) and the third detection mechanism (16) are contact displacement sensors;
The platform (9) is movably provided with a suspension supporting mechanism, the suspension supporting mechanism is used for right-angle floating support of the square plate which is not supported by the supporting element (10), the suspension supporting mechanism comprises a second magnetic base (32) and a supporting block (34), the second magnetic base (32) is arranged on the platform (9), and the supporting block is arranged on the second magnetic base (32) through a spring (33);
The first guide rail is provided with a second moving part (5) in a sliding manner;
And the second moving part (5) and the third moving part (21) are provided with positioning mechanisms (6) corresponding to the square plates, and the square plates are limited in the X direction and the Y direction through the positioning mechanisms (6).
2. A square plate form and location tolerance testing device according to claim 1, wherein: the positioning mechanism (6) comprises a first positioning rod (22), a second positioning rod (1) and a third positioning rod (17), wherein the first positioning rod (22) is arranged on a third moving part (21), the second positioning rod (1) and the third positioning rod (17) are arranged on a platform (9), the first positioning rod (22) and the third positioning rod (17) are arranged in the horizontal Y direction, the first positioning rod (22) is arranged in the horizontal X direction, the outer ends of the first positioning rod (22) and the third positioning rod (17) are flush, and the intersecting positions of the second guide rail (23) and the first guide rail (2) are close to the corresponding supporting element (10), the second positioning rod (1) and the third positioning rod (17).
3. A square plate shape tolerance detection device according to claim 1 or 2, characterized in that: the second guide rail is also provided with a second moving part (5) in a sliding manner, the second guide rail (23) is fixedly arranged on the second moving part (5) to realize the Y-direction position change of the second guide rail, and the corresponding supporting element (10) at the intersection of the first guide rail (2) and the second guide rail (23) is arranged on the second moving part (5).
4. A square plate form and tolerance detection device according to claim 3, wherein: the positioning mechanism (6) comprises a first positioning rod (22), a second positioning rod (1) and a third positioning rod (17), wherein the first positioning rod (22) is arranged on a third moving part (21), the second positioning rod (1) and the third positioning rod (17) are respectively arranged on a second moving part (5), the first positioning rod (22) and the third positioning rod (17) are arranged in the horizontal Y direction, the first positioning rod (22) is arranged in the horizontal X direction, the outer ends of the first positioning rod (22) and the third positioning rod (17) are flush, and the supporting element (10), the second positioning rod (1) and the third positioning rod (17) on the third moving part (5) are arranged in close proximity.
5. A square plate form and tolerance testing device according to claim 4, wherein: the platform (9) is provided with a first scale (7) in the y direction and a second scale (3) in the X direction, wherein the zero point of the first scale (7) is arranged at the center of the first scale (7), and the first moving part (11) and the second moving part (5) are symmetrically arranged about the zero point of the scale (7).
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| CN201910040053.9A CN109631761B (en) | 2019-01-16 | 2019-01-16 | Square plate shape position tolerance detection device |
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| CN201910040053.9A CN109631761B (en) | 2019-01-16 | 2019-01-16 | Square plate shape position tolerance detection device |
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| CN110132141B (en) * | 2019-06-13 | 2021-07-23 | 上海电气集团股份有限公司 | Positioning platform and method for silicon steel sheet measurement |
| CN110887435B (en) * | 2019-12-04 | 2021-07-27 | 中建材智能自动化研究院有限公司 | Detection platform |
| CN112229302A (en) * | 2020-11-25 | 2021-01-15 | 泰州市华发新型建材厂 | Aluminum profile hole site detection device |
| CN115064025B (en) * | 2022-06-02 | 2023-11-21 | 杭州永荣实业有限公司 | Geometric tolerance detection teaching experiment table |
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| WO2018006532A1 (en) * | 2016-07-06 | 2018-01-11 | 苏州富强科技有限公司 | Magnetic flux density measurement apparatus and measurement method therefor |
| CN106152989A (en) * | 2016-08-15 | 2016-11-23 | 天津大学 | A kind of measuring method of sheet material automatic Synthesis detection device |
| CN107401989A (en) * | 2017-09-06 | 2017-11-28 | 和信精密科技（吴江）有限公司 | A kind of flatness and flexibility detect tool |
| CN207501843U (en) * | 2017-12-06 | 2018-06-15 | 深圳市盐田港建筑工程检测有限公司 | A kind of center curvature degree measuring instrument of Ceramic Tiles comprehensive tester |
| CN209673041U (en) * | 2019-01-16 | 2019-11-22 | 天津市建筑工程质量检测中心有限公司 | A kind of square plate geometric tolerance detection device |
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