CN113607263B - Vibration measuring assembly with accurate positioning device for height direction movement sensing part - Google Patents
Vibration measuring assembly with accurate positioning device for height direction movement sensing part Download PDFInfo
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- CN113607263B CN113607263B CN202010369220.7A CN202010369220A CN113607263B CN 113607263 B CN113607263 B CN 113607263B CN 202010369220 A CN202010369220 A CN 202010369220A CN 113607263 B CN113607263 B CN 113607263B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
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Abstract
The invention discloses a vibration measuring assembly with a height direction movement sensing part accurate positioning device, which comprises: a body having a reference plane and an orthogonal setting plane orthogonal to the reference plane, wherein the orthogonal setting plane has a plurality of insertion ports which are far away from each other, and the space between the insertion ports just corresponds to the overall dimension of the height direction motion sensing piece; electrically welding the circuit board of the height direction motion sensing piece; a positioning device, comprising: a plurality of fixing units, each of which has a shape complementary to the insertion ports and a size not smaller than the corresponding insertion port, for being press-coupled to the corresponding insertion port; and a tightening base body extending out of the fixing unit and having a butting face close to the body and a back face opposite to the butting face, wherein the butting face is provided with a butting part for butting and fixing the circuit board and the height direction motion sensing piece between the tightening base body and the body.
Description
Technical Field
The present invention relates to a vibration measuring assembly, and more particularly to a vibration measuring assembly having an accurate positioning device for a height-direction motion sensor.
Background
Any equipment rotating around a center is called rotating equipment, and includes fans, motors, pumps, compressors, etc. which are common in factories, as large as the rotating shaft of a wind driven generator, and the axle of a rapid transit train which runs at a high speed. Since any rotating equipment cannot be perfectly circular, and some reciprocating type force is generated due to eccentric rotation in different degrees during operation, the condition of the rotating equipment can be judged by monitoring the vibration behavior generated by the motion. For railway vehicle applications, vibration of a minimum of 1mG is periodically monitored, and transmission shaft breakage of a railway vehicle occurs, and the conventional aging threshold of component devices such as transmission shafts or gearboxes is limited to about 30 to 50mG of vibration, and the device must be replaced in advance before the device is broken down or damaged, so that derived financial loss or casualties are avoided.
The flight capacity of the airplane is that above a critical flight speed, the pressure difference caused by the different speeds of the airflow flowing through the lower surface and the upper surface of the wing is utilized to provide rising buoyancy larger than the weight of the airplane so as to enable the airplane to take off, however, the airflow in the natural environment is mostly turbulent, so the speed distribution of the airflow is very uneven, the pressure difference changes constantly, the rising buoyancy provided for the wing also changes constantly to cause the wing to vibrate constantly, the vibration directly affects the service life of the wing, the vibration of the wing is monitored constantly to find the problem of wing degradation in advance so as to be repaired in advance, so that the human life and property loss caused by great air crash are avoided, and the flight safety is the most important subject.
In addition, the convenience of traffic provided by the bridge accelerates human-to-human communication and promotes the development of civilization, because the structure of the bridge is not a perfect rigid body, the design must be able to bear the vibration caused by the passing of people and vehicles and various natural disasters and personal accidents besides a certain load limit, but the construction material of the bridge deteriorates year by year to cause the doubtful traffic safety, so that the bridge is also required to be subjected to real-time vibration monitoring to find structural problems in advance and repair or evaluate, dismantle and rebuild, so as to avoid the human life and financial loss caused by the collapse of the bridge.
The current vibration monitoring mainly comprises the steps of arranging a vibration sensing piece on a main body to be monitored in real time, receiving a vibration signal returned by the vibration sensing piece, filtering, calculating and processing monitoring data, and providing judgment for a professional technician. The measuring capability of the sensing member is mainly defined by the precision and accuracy of the measured data, the price difference of the vibration sensing members with different levels of precision and accuracy is very large, and with the continuous research and development and manufacture of various new instruments with gradually changing technologies, the requirements on the precision and accuracy of the vibration assembly in the market are higher and higher, and the requirements on the vibration sensing member with high precision and high accuracy in the market are also increased.
As shown in fig. 7, in the three-axis vibration sensor 9, an X-axis sensing chip 94 is disposed on a circuit board 92 to sense the vibration component in the X-axis direction, a Y-axis sensing chip 95 is disposed on the same plane to sense the vibration component in the Y-axis direction, a planarization layer 96 is disposed on the X-axis sensing chip 94 and the Y-axis sensing chip 95, and a Z-axis sensing chip 97 is disposed on the planarization layer 96 to sense the vibration component in the Z-axis direction. However, in general, for example, three-dimensional vibration sensing in a smart phone, on one hand, the occupied space is saved, and on the other hand, the cost is saved, and even the sensing chips in the Z-axis direction are simply stacked above the X-axis sensing chip 94 and the Y-axis sensing chip 95. Therefore, it is difficult to achieve complete leveling due to the height tolerance, so the Z-axis sensing chip 97 is prone to tilt, and therefore the accuracy of measurement in the Z-axis direction is usually not good, and fortunately, the smart phone does not have high requirements for precision between three dimensions, and therefore the above problems do not occur.
In addition, the output signal of the triaxial vibration sensor manufactured by Vibrasens company can reach 100 mV/G. It is explained above that the precision of the vibration sensor is determined by the sensing performance of the sensing module, and the accuracy is determined by the assembling mechanism and the process quality of the vibration sensor, even if the high-precision sensing module is used to manufacture the vibration sensor, if the mechanism is not properly designed or the sensing chip is installed on the sensing module during the manufacturing process, the component deviation between the height axis direction measurement data and the horizontal axis direction measurement data will be caused to lose the accuracy, and the credible digital number of the measurement data will be reduced to reduce the precision.
According to the current technology, the precision machining of the general machine components can be accurate to a certain dimension (0.01mm), for example, to ensure that the vertical Z-direction structure is perpendicular to the X-Y plane, but even if the screw is rotated slightly or the amount of solder is uneven, the inclination, deflection or height deviation of the Z-direction vibration sensor is caused during the process of connecting the circuit board mounted with the Z-direction vibration sensor to the Z-direction base structure, and the error is often more than that of the precision machining. That is, even if a Z-axis vibration sensor with high precision is used and high-precision machining is used when the base is manufactured, a predetermined effect cannot be achieved when vibration in the Z-axis direction is actually measured, and accuracy in a larger order is not good if a high-precision component is used.
In addition, when monitoring the vibration of a large main body, a plurality of vibration sensors are usually required to be used at the same time, the accuracy and precision of each vibration sensor are inconsistent due to the above problems of mechanism design and assembly and manufacturing, a user usually has to perform a complicated calibration procedure on each vibration sensor, the vibration data measured by the plurality of vibration sensors must also take the least significant digit to perform calculation processing and subsequent analysis, and the accuracy and precision of the vibration sensors are reduced again.
Therefore, it is an objective of the present invention to improve the accuracy of the vibration sensor by reducing the influence of manufacturing assembly offset through a perfect and simple mechanism design. In particular, the structure design can not cause the cost to be greatly increased, and can not influence the yield and the efficiency of assembly.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, it is desirable to provide a vibration measuring assembly with a precise positioning device for a height direction motion sensor according to an embodiment of the present invention, which is intended to achieve the following objectives: (1) the accurate positioning in the height direction can be provided, so that the deviation in the manufacturing and assembling process is reduced, and the accuracy of measuring the vibration measuring component is improved; (2) due to the improvement of the accuracy, the precision of the vibration sensing piece can be ensured to show the power, and the vibration measurement value is more sensitive and reliable; (3) the yield is improved by means of simple and convenient assembly design.
According to an embodiment, the present invention provides a vibration measurement assembly having a precise positioning device for a height-direction motion sensor, comprising a body having at least a reference plane and an orthogonal plane orthogonal to the reference plane, wherein the orthogonal plane is formed with a plurality of insertion ports away from each other, and a space corresponding to the dimension of the height-direction motion sensor is formed between the insertion ports; at least one circuit board electrically soldered with the height direction motion sensing member; and a positioning device, comprising: plural fixing units, which are complementary to the insertion ports and have a size not smaller than the corresponding insertion ports, respectively, for being respectively corresponding to the insertion ports and being tightly combined to the corresponding insertion ports; and a tightening base body extending out of the fixing unit and having a butting surface close to the body and a back surface opposite to the butting surface, at least one butting part is formed on the butting surface, so that when the fixing units are respectively and tightly combined to the corresponding insertion ports, the butting part butts and holds the circuit board and the height direction motion sensing piece between the tightening base body and the body.
Compared with the prior art, the invention can accurately position the motion sensing part in the height direction in all dimension directions by tightly combining the positioning device and the insertion port on the body, and form the precisely configured Z-axis direction vibration measuring assembly by the tiny controllable errors of the mechanical component in all dimension directions, thereby reducing the deviation in the manufacturing and assembling process; the vibration measurement in the Z-axis direction can completely reflect the actual vibration situation faithfully, and the high precision provided by the original specification of the component is fully presented. Of course, those skilled in the art can easily understand that the present invention is not limited to the structure design in the Z-axis direction, but because the general measurement uses the plane in the X-Y direction as the reference plane of the structure, the vibration measurement component in the X-axis or Y-axis direction is relatively easy to install, but the present invention does not exclude the three-dimensional vibration measurement component or any two-dimensional vibration measurement component having the X-axis, Y-axis and Z-axis.
In addition, the fixed unit is tightly combined with the insertion port on the body, so that the height direction motion sensing component is mechanically and accurately positioned to form the vibration measuring component, on one hand, the combined structure is simple, the operation difficulty is low, the yield is improved, the height direction accurate positioning can be provided, the deviation caused in the manufacturing and assembling process is reduced, the measuring accuracy of the vibration measuring component is reduced, the original precision effect of the vibration sensing component can be fully shown, the simultaneous use of a plurality of vibration measuring components can be realized, and the integral accuracy is not reduced.
Drawings
FIG. 1 is a perspective view of a vibration measuring assembly with a precise positioning device for a height-direction motion sensor according to a first preferred embodiment of the present invention.
FIG. 2 is a schematic view of a vibration measuring assembly with a precise positioning device for a height-direction motion sensor according to a first preferred embodiment of the present invention.
FIG. 3 is a schematic side view of a vibration measuring assembly with a precise positioning device for a height direction movement sensor according to a first preferred embodiment of the present invention in a high speed railway train installation application.
FIG. 4 is an exploded view of the vibration measuring device with the precise positioning apparatus for the height-direction motion sensor according to the first preferred embodiment of the present invention, taken along the line A-A in FIG. 1.
FIG. 5 is an exploded perspective view of a vibration measuring assembly with a precise positioning device for a height direction motion sensor according to a second preferred embodiment of the present invention.
FIG. 6 is an assembled side view of a vibration measurement assembly with a precise positioning device for a height direction motion sensor according to a second preferred embodiment of the present invention.
Fig. 7 is a schematic view of a three-axis vibration sensor according to the prior art.
Wherein: 1 is a vibration measuring component; 10. 10' is a body; 12. 12' is a reference surface; 14. 14' is an orthogonal setting surface; 142 is the quadrature compensation positioning port; 1422 is the quadrature compensation plane; 16. 16' is an insertion port; 2. 2' is a height direction movement sensing member; 22. 22', 92 are circuit boards; 3. 3' is a positioning device; 32. 32' is a fixed unit; 34. 34' is a packing base body; 342 is a butt joint surface; 344 is the back; 346. 346' is an abutment; 347' is a bump with equal height; 36' is a containing space; 4 is a high-speed railway train; 42 is an axle; 5 is an orthogonal auxiliary unit; 54 is an orthogonal mounting surface; 52 is an embedding surface; 56 is a perforation; 9 is a triaxial vibration sensing assembly; 94 is an X-axis sensing chip; 95 is a Y-axis sensing chip; 96 is a planarization layer; 97 is a Z-axis sensing chip; A-A is a section line; s is a spacing; theta 1 is an oblique angle; theta 2 is a complementary angle.
Detailed Description
The invention is further illustrated with reference to the following figures and specific examples. These examples are to be construed as merely illustrative and not limitative of the remainder of the disclosure in any way whatsoever. After reading the description of the invention, one skilled in the art can make various changes and modifications to the invention, and such equivalent changes and modifications also fall into the scope of the invention defined by the claims.
First preferred embodiment
As shown in fig. 1 to 2, in a vibration measuring assembly 1 having a precise positioning device for a height direction motion sensing element 2 according to a first preferred embodiment of the present invention, the height direction motion sensing element 2 is, for example, a mems gravity sensing integrated circuit, and the vibration measuring assembly 1 includes: the body 10, the height direction motion sensing element 2, the circuit board 22 for soldering the height direction motion sensing element 2, and the positioning device 3 are illustrated as an integrally formed aluminum alloy casing, such as a flexible circuit board designed and customized according to the inner space of the body 10, and are illustrated as being inserted by a pin and tightly combined with the body 10 to precisely position the height direction motion sensing element 2 on the body 10. The section line A-A in FIG. 1 is used for the subsequent generation of cross-sectional views to further illustrate how the positioning device 3 precisely positions the height direction motion sensing element 2 on the body 10.
The body 10 has a reference plane 12 parallel to a horizontal plane, and an orthogonal plane 14 perpendicular to a vertical wall of the reference plane 12, wherein the orthogonal plane 14 has two insertion ports 16 separated from each other by a gap S formed between the two insertion ports 16 in the present embodiment, which is just corresponding to the dimension of the height motion sensor 2.
Referring to fig. 3, the vibration measuring assembly 1 further includes a set of lateral motion sensors (not shown) disposed on the reference plane and orthogonal to the height motion sensors, and a set of longitudinal motion sensors (not shown) disposed on the reference plane and orthogonal to the height motion sensors and the lateral motion sensors, so as to monitor the vibration of the axle 42 of the high-speed railway train 4. Therefore, three independent vibration sensing assemblies measure three-dimensional vibrations, respectively, and are provided to, for example, a subsequent analysis device, thereby sensing multiple vibrations of, for example, a transmission shaft, a reducer, and the like. Of course, those skilled in the art can readily understand that multiple sets of vibration measurement components, not limited to one set, may be provided in a high speed railway car or the like.
Fig. 4 is a cross-sectional view taken along a line a-a in fig. 1, please refer to fig. 4, the positioning device 3 has two fixing units 32, which are respectively complementary to the two insertion ports 16 on the same central line and have a size not smaller than the corresponding insertion port 16, the two fixing units 32 are, for example, two metal cylindrical pins with different sizes, which are not symmetrical and can be easily manufactured, for respectively corresponding to the two insertion ports 16 with different sizes and are not symmetrical to each other. The positioning device 3 further has a pressing base 34 extending out of the fixing unit 32, such as a planar metal plate resistant to vibration and deformation, the pressing base 34 can be divided into an abutting surface 342 approaching to the main body 10, which is illustrated as a high-flatness surface, and a back surface 344 opposite to the abutting surface 342, and at least one abutting portion 346 illustrated as a high-flatness surface is formed on the abutting surface 342.
The vibration measuring module 1 also has an orthogonal auxiliary unit 5, illustrated as a cast metal block, having an orthogonal mounting surface 54 facing the height direction movement sensing member 2, and an embedding surface 52 opposite to the orthogonal mounting surface 54, the embedding surface 52 having a draft angle θ 1 of, for example, 0.1 ° to 0.3 ° facing the reference surface 12 so as to be easily demolded in mass production using a casting technique, and then the orthogonal mounting surface 54 is precision-machined with a CNC milling machine to have a high perpendicularity with respect to the reference surface 12. The orthogonal installation surface 14 is formed with an orthogonal compensation positioning port 142 relative to the orthogonal auxiliary unit 5, which can be explained as a groove having an opening facing a side away from the reference surface and a shape and size complementary to the orthogonal auxiliary unit 5, the orthogonal compensation positioning port 142 has an orthogonal compensation surface 1422 facing the height direction motion sensor 2, which has a complementary angle θ 2 complementary to the above-mentioned oblique angle θ 1, for maintaining the orthogonal installation surface 54 orthogonal to the reference surface 12 when the orthogonal auxiliary unit 5 is inserted into the orthogonal compensation positioning port 142 on the orthogonal installation surface 14 and combined with the body 10.
The orthogonal auxiliary unit 5 further has two through holes 56 respectively corresponding to the insertion ports 16 and the fixing units 32 on the same center line, so that the two fixing units 32 can be tightly coupled to the respective insertion ports 16 by penetrating the respective through holes 56. Since the flexible printed circuit board is used in this embodiment and the two positioning devices 3 are slightly smaller than the corresponding insertion port 16 and the corresponding through hole 56 from the tip end and then gradually increase to a size slightly larger than the corresponding insertion port 16, the positioning device 3 is defined as not smaller than the insertion port 16 since the final embedded profile of the positioning device 3 is equal to or slightly larger than the insertion port.
The positioning device 3 can be easily pressed to pierce through the flexible circuit board 22 of the present embodiment and be inserted into the corresponding insertion port 16 by means of pressing, and at this time, a strong friction force is generated between the abutting portion 346 and the height direction motion sensor 2 due to the pressing force, so as to abut and hold the circuit board 22 and the height direction motion sensor 2 between the pressing base 34 and the body 10, and maintain the height direction motion sensor 2 in close contact with and in contact with the reference surface 12.
In addition, since the distance between the two fixing units 32 corresponds to the space S between the two insertion ports 16, that is, exactly corresponds to the dimension of the height direction motion sensor 2. Therefore, after the positioning device 3 completes the above combination, the height direction motion sensor 2 is exactly clamped, even if the height direction motion sensor 2 is positioned in a deviation manner when being welded on the circuit board 22 or the height direction motion sensor 2 is displaced due to soldering, the positioning device 3 can still be used for accurately positioning the height direction motion sensor 2 at a preset position, thereby providing high-accuracy vibration measurement information and achieving the purpose of the present invention. In the experiments of the inventor, since the precision machining error can be limited to the range of 1 μm, compared with the dimension of the height direction motion sensor, the precision deviation caused by installation and fixation is very small, the vibration measuring accuracy of the vibration measuring assembly 1 in the height direction can reach 1mG/V, and the vibration resistance of the height direction motion sensor 2 is greatly improved by being clamped by the positioning device 3, so as to further prolong the service life and reliability of the vibration measuring assembly in the high vibration measuring environment.
In the embodiment, by means of the two fixing units which are complementary to the insertion ports respectively and have the size not smaller than the corresponding insertion ports, the flexible circuit board is penetrated and then tightly combined with the insertion ports on the body through the through holes of the orthogonal auxiliary units, so that the height direction motion sensing part is accurately positioned to form the vibration measuring assembly, and the accurate positioning can be provided in the height direction to reduce the measuring precision and accuracy of the vibration measuring assembly caused by deviation in the manufacturing and assembling process. The orthogonal auxiliary unit and the orthogonal compensation positioning port are combined, so that the processing time of each vibration measuring component on a precise CNC lathe or a milling machine can be reduced, the processing cost is reduced, the production capacity is improved, and in addition, the two-piece structure is also favorable for reducing the maintenance and replacement cost and improving the yield.
In the present embodiment, after the clamping is appropriate, the circuit and the external circuit on the circuit board 22 are further connected or soldered by wire bonding, or even simply pressed and pressed, and the glue is injected and cured inside the five-sided hollow structure of the drawing, so that all the components and structures are completely fixed relatively, on one hand, a good precise positioning effect is maintained, and on the other hand, dust, moisture or acid-base corrosion in a severe environment can be prevented.
In this embodiment, the vibration measuring assembly 1 is composed of a height direction (Z axis) motion sensing component, a transverse direction (X axis) motion sensing component, and a longitudinal direction (Y axis) motion sensing component, but it is easily understood by those skilled in the art that the height direction motion sensing component can be independently assembled into a height direction vibration measuring assembly even if three-dimensional measurement is not integrated, and a quasi-positioning three-dimensional vibration measuring assembly is composed of a two-dimensional vibration measuring assembly formed by a separately configured transverse direction motion sensing component and a longitudinal direction motion sensing component, which does not hinder the implementation of the present disclosure.
Second preferred embodiment
The second preferred embodiment of the present invention is described below, the same parts in this embodiment as the previous preferred embodiment are not described herein again, similar components also use similar names and reference numerals, and only the differences are described. Referring to fig. 5 to 6, in the present embodiment, the main body 10 'is an aluminum alloy housing formed by die casting, the orthogonal setting surface 14' thereon has 4 insertion ports 16 ', which are exemplified as long grooves, and the 4 insertion ports 16' are connected to form a ring-shaped groove, and the 4 fixing units 32 'corresponding to the 4 insertion ports 16' on the positioning device 3 'are all long walls, and the 4 fixing units 32' also form a containing space 36 'surrounded by a ring-shaped enclosure for containing the height direction motion sensing element 2'. The height of the fixing unit 32 ' is greater than the thickness of the height direction movement sensor 2 ', and the height of the fixing unit 32 ' is not greater than the sum of the depth of the insertion port 16 ' and the thickness of the height direction movement sensor 2 '.
Unlike the previous preferred embodiment, the packing base 34 ' in this embodiment clamps the height direction motion sensor 2 ' and the circuit board 22 ' by the 4 fixing units 32 ', and directly and respectively inserts into the corresponding insertion ports 16 ' without passing through the orthogonal auxiliary unit, thereby maintaining the height direction motion sensor 2 ' to be orthogonal to the reference plane 12 ', thereby having an additional advantage of simple structure and easy manufacturing. In addition, since the positioning device 3 ' completely seals the height direction motion sensing element 2 ' in the accommodating space 36 ' via the 4 fixing units 32 ', better protection can be provided, and since the 4 fixing units 32 ' also exactly correspond to the overall dimension of the height direction motion sensing element 2 ', after the positioning device 3 ' completes the above combination, better two-dimensional clamping force can be provided exactly in the directions of length, width and the like of the height direction motion sensing element 2 ', even if the circuit board 22 ' is positioned unevenly, or the height direction motion sensing element 2 ' is positioned eccentrically due to soldering, the height direction motion sensing element 2 ' can still be fixed at a precisely positioned position, thereby providing high-accuracy vibration measurement information.
Because the size of the fixing unit 32 ' in this embodiment is not smaller than the insertion port 16 ', when 4 fixing units 32 ' clamp the height direction motion sensor 2 ' and the circuit board 22 ' and are inserted into the corresponding insertion ports 16 ', respectively, the abutting portion 346 ' of the clamping base 34 ' further has at least 3 bumps 347 ' with equal height, so as to hold the circuit board 22 ' together with the height direction motion sensor 2 ' in abutment between the clamping base 34 ' and the orthogonal arrangement surface 14 ' of the body space 10 ', so that the height direction motion sensor 2 ' and the orthogonal arrangement surface 14 ' are also kept orthogonal to the reference surface 12 ', and thus the positioning device 3 ' provides an additional one-dimensional clamping force in the thickness direction of the height direction motion sensor 2 ' after completing the above combination.
The positioning device of the embodiment provides three-dimensional clamping such as length, width and thickness for the height direction motion sensing piece by the pressing combination of the fixing unit and the insertion port and the abutting connection of the abutting connection part and the height direction motion sensing piece respectively, so as to accurately position the height direction motion sensing piece on the vibration measurement component, and the vibration measurement component of the embodiment has good accuracy, so that the overall accuracy and precision cannot be reduced when a plurality of vibration measurement components are simultaneously combined for use, and the other purpose of the invention is achieved. In addition, the setting cost of the orthogonal auxiliary unit can be further saved, and more complete full-coating protection can be provided for the height direction motion sensing piece.
In summary, the positioning device of the present invention can precisely clamp the height direction motion sensor after the positioning device is combined with the body, so that even if the circuit board positioning deviation occurs or the height direction motion sensor is subjected to position drift during welding, the height direction motion sensor can still be precisely positioned, thereby providing vibration measurement information of the vibration measurement assembly with high accuracy, and further prolonging the service life of the vibration measurement assembly in a high vibration measurement environment. The invention uses a plurality of fixing units which are respectively complementary with the insertion ports and have the size not smaller than the corresponding insertion ports to be tightly combined with the insertion ports on the body, so that the height direction motion sensing assembly is accurately positioned in the height direction to keep the orthogonal direction to the reference surface, and the influence of deviation generated in the manufacturing and assembling process on the precision and the accuracy of the measurement information of the vibration measurement assembly is reduced.
Of course, the fixing units and the corresponding insertion ports in the above preferred embodiments can be changed according to the needs of the embodiments without limitation, and the implementation modes of the abutting portions can also be changed according to the needs of the product.
Claims (4)
1. A vibration measurement assembly with a precise positioning device for a height direction movement sensing part is characterized by comprising
A body having at least a reference surface and an orthogonal setting surface orthogonal to the reference surface, wherein a plurality of insertion ports are formed on the orthogonal setting surface, and a space corresponding to the overall dimension of the height direction motion sensing component is formed between the insertion ports;
at least one circuit board electrically soldered with the height direction motion sensing member;
an orthogonal auxiliary unit interposed between the height direction motion sensing member and the body, the orthogonal auxiliary unit having an orthogonal mounting surface facing the height direction motion sensing member and an insertion surface opposite to the orthogonal mounting surface; and
a positioning device includes:
plural fixing units, which are complementary to the insertion ports and have a size not smaller than the corresponding insertion ports, respectively, for being respectively corresponding to the insertion ports and being tightly combined to the corresponding insertion ports; and
A pressing base body extending out of the fixing unit, the pressing base body is a plane plate and is provided with a butting surface close to the body and a back surface opposite to the butting surface, at least one butting part is formed on the butting surface, so that when the fixing unit is respectively and tightly combined to the corresponding insertion ports, the butting part enables the circuit board and the height direction motion sensing piece to be butted and fixed between the pressing base body and the body;
an orthogonal compensation positioning port is further formed on the orthogonal installation surface for the orthogonal auxiliary unit to be installed on the orthogonal installation surface and combined with the body;
the embedding surface has an oblique angle, and an orthogonal compensation surface which is opposite to the embedding surface and has a complementary angle with the oblique angle is formed on the orthogonal compensation positioning port, so that the orthogonal auxiliary unit is combined with the orthogonal compensation positioning port and the body through the embedding surface and the orthogonal compensation surface, and the orthogonal installation surface is orthogonal to the reference surface.
2. The vibration measuring assembly with the precise positioning device for the height direction movement sensor as claimed in claim 1, wherein the orthogonal auxiliary unit has a plurality of through holes corresponding to the insertion port and the fixing unit for the fixing unit to pass through to be tightly combined with the insertion port.
3. The vibration measuring assembly with the precise positioning device for the height direction movement sensor as claimed in claim 1, wherein the plurality of insertion ports are different in size and are not symmetrical to each other.
4. The assembly of claim 1, wherein the abutment portion comprises at least 3 bumps of equal height.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010369220.7A CN113607263B (en) | 2020-05-04 | 2020-05-04 | Vibration measuring assembly with accurate positioning device for height direction movement sensing part |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010369220.7A CN113607263B (en) | 2020-05-04 | 2020-05-04 | Vibration measuring assembly with accurate positioning device for height direction movement sensing part |
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| CN113607263A CN113607263A (en) | 2021-11-05 |
| CN113607263B true CN113607263B (en) | 2022-06-28 |
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|---|---|---|---|
| CN202010369220.7A Expired - Fee Related CN113607263B (en) | 2020-05-04 | 2020-05-04 | Vibration measuring assembly with accurate positioning device for height direction movement sensing part |
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| CN (1) | CN113607263B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07294545A (en) * | 1994-04-27 | 1995-11-10 | Sumitomo Electric Ind Ltd | Detection body of acceleration detecting device |
| JP2005024350A (en) * | 2003-06-30 | 2005-01-27 | Matsushita Electric Works Ltd | Acceleration sensor |
| WO2011140804A1 (en) * | 2010-08-09 | 2011-11-17 | Wang Tao | Micro inertial measurement system |
| CN202305066U (en) * | 2011-10-19 | 2012-07-04 | 北京强度环境研究所 | Low-frequency pulsation/static pressure sensor |
| TW201411856A (en) * | 2012-09-06 | 2014-03-16 | United Microelectronics Corp | Capacitor structure and fabricating method thereof |
| TW201818500A (en) * | 2016-11-11 | 2018-05-16 | 德商蘇士微科技印刷術股份有限公司 | Positioning device |
| CN110645970A (en) * | 2014-07-16 | 2020-01-03 | 精工爱普生株式会社 | Sensor unit, electronic apparatus, and moving object |
-
2020
- 2020-05-04 CN CN202010369220.7A patent/CN113607263B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07294545A (en) * | 1994-04-27 | 1995-11-10 | Sumitomo Electric Ind Ltd | Detection body of acceleration detecting device |
| JP2005024350A (en) * | 2003-06-30 | 2005-01-27 | Matsushita Electric Works Ltd | Acceleration sensor |
| WO2011140804A1 (en) * | 2010-08-09 | 2011-11-17 | Wang Tao | Micro inertial measurement system |
| CN202305066U (en) * | 2011-10-19 | 2012-07-04 | 北京强度环境研究所 | Low-frequency pulsation/static pressure sensor |
| TW201411856A (en) * | 2012-09-06 | 2014-03-16 | United Microelectronics Corp | Capacitor structure and fabricating method thereof |
| CN110645970A (en) * | 2014-07-16 | 2020-01-03 | 精工爱普生株式会社 | Sensor unit, electronic apparatus, and moving object |
| TW201818500A (en) * | 2016-11-11 | 2018-05-16 | 德商蘇士微科技印刷術股份有限公司 | Positioning device |
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| 三轴高 g 值加速度传感器的测试技术研究;陈宏亮;《传感技术学报》;20180228;第175-179页 * |
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| CN113607263A (en) | 2021-11-05 |
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