CN110568218B - Angular accelerometer sensitive assembly ring gluing positioning device and method - Google Patents
Angular accelerometer sensitive assembly ring gluing positioning device and method Download PDFInfo
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- CN110568218B CN110568218B CN201910795864.XA CN201910795864A CN110568218B CN 110568218 B CN110568218 B CN 110568218B CN 201910795864 A CN201910795864 A CN 201910795864A CN 110568218 B CN110568218 B CN 110568218B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
- G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
- G01P15/0802—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
- G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
- G01P15/0888—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values for indicating angular acceleration
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Abstract
The invention provides a gluing and positioning device and a gluing and positioning method for a ring of a sensitive assembly of an angular accelerometer, and the gluing and positioning device comprises a base, a positioning inner core, a vertical positioning pressing block and a locking assembly, wherein a sensor structure shell is arranged in a first positioning accommodating cavity of the base, the first positioning accommodating cavity is used for positioning the sensor structure shell, the positioning inner core is detachably arranged at a set position of the sensor structure shell, a second positioning accommodating cavity of the positioning inner core is used for fixing the relative position between the ring of the sensitive assembly and the sensor structure shell, the vertical positioning pressing block is used for limiting the vertical movement of the ring of the sensitive assembly of the angular accelerometer, and the locking assembly is used for applying a set pressing force to the ring of the sensitive assembly of the angular accelerometer to fix the relative position between the ring of the sensitive assembly and the sensor structure shell. By applying the technical scheme of the invention, the technical problems that the relative position between the sensor structure shell and the sensitive assembly ring is not fixed and the sensitive assembly ring is easy to break in the prior art are solved.
Description
Technical Field
The invention relates to the technical field of molecular electronic type angular accelerometers, in particular to a device and a method for gluing and positioning a ring of a sensitive component of an angular accelerometer.
Background
The molecular electronic type angular accelerometer is used for measuring angular acceleration signals of a carrier relative to a corresponding axis, and the working principle of the molecular electronic type angular accelerometer is that the flow of working liquid in a sensitive assembly of the molecular electronic type angular accelerometer causes the transfer of charges at the interface of a conversion device and liquid to form a potential difference. The potential difference between the two ends of the conversion device is measured through the electrodes, electric signals corresponding to external angular acceleration signals are directly obtained, and the electric signals are accumulated and output through the electrodes of the converter.
The sensitive assembly ring is used for carrying the working liquid of the molecular electronic type angular accelerometer, and is one of key structural components of the molecular electronic type angular accelerometer. The ring of the sensitive component is generally made of a ceramic material or a special glass material, and the special glass material is formed by various alkaline substances such as Na, Ca, K and the like and SiO 2. When the molecular electronic type angular accelerometer is applied for testing, the angular accelerometer structure shell needs to be directly and rigidly connected to a tested structure body, so that the sensitive component ring and the structure shell need to be reliably and fixedly connected, and the external angular acceleration information can be directly transmitted to the sensitive component ring through the sensor structure shell. However, the connection method commonly used in the prior art easily causes the relative position between the sensor structure shell and the ring of the sensitive component to be unfixed, and the ring of the sensitive component is easily broken during the connection process.
Disclosure of Invention
The invention provides a gluing and positioning device and method for a sensitive assembly ring of an angular accelerometer, which can solve the technical problems that the relative position between a sensor structure shell and the sensitive assembly ring is not fixed and the sensitive assembly ring is easy to break in the prior art.
According to an aspect of the invention, there is provided a glue positioning device for a loop of a sensitive component of an angular accelerometer, the glue positioning device comprising: the sensor structure shell is arranged in the first positioning accommodating cavity, and the first positioning accommodating cavity is used for positioning the sensor structure shell; the positioning inner core is detachably arranged at a set position of the sensor structure shell and is provided with a second positioning accommodating cavity, and the second positioning accommodating cavity is used for fixing the relative position between the angular speed meter sensitive assembly ring and the sensor structure shell; the vertical positioning pressing block can be arranged on the upper part of the ring of the sensitive component of the angular velocity meter in a pressing mode and is used for limiting the ring of the sensitive component of the angular velocity meter to move vertically; the locking assembly is detachably arranged on the base and is used for applying a set pressing force to the angular velocity meter sensitive assembly ring so as to ensure that the relative position between the angular velocity meter sensitive assembly ring and the sensor structure shell is fixed in the gluing process of the angular velocity meter sensitive assembly ring.
Furthermore, the second positioning accommodating cavity is an arc-shaped surface accommodating cavity, the arc-shaped surface accommodating cavity is matched with the structure of the working liquid compensator of the angular velocity meter sensitive assembly ring, and the positioning inner core is attached to the working liquid compensator of the angular velocity meter sensitive assembly ring through the arc-shaped surface accommodating cavity so as to fix the relative position between the angular velocity meter sensitive assembly ring and the sensor structure shell.
Furthermore, the vertical positioning pressing block is provided with a through hole, the through hole is arranged at the center of the vertical positioning pressing block, and the vertical positioning pressing block penetrates through the positioning inner core and is pressed on the ring body of the ring of the angular velocity meter sensitive assembly.
Further, the material of the vertical positioning pressing block comprises polytetrafluoroethylene.
Further, locking Assembly includes first positioning screw, second positioning screw, first lock nut and second lock nut, first positioning screw and the fixed setting in second positioning screw interval are on the base, first positioning screw and second positioning screw are located the both sides of location inner core respectively, vertical location briquetting still has first screw hole and second screw hole, vertical location briquetting cooperatees with first positioning screw and through second screw hole and second positioning screw through first screw hole, first lock nut cooperatees with first positioning screw and second lock nut cooperatees with the second positioning screw in order to realize locking or loosening to vertical location briquetting.
Further, the cementing positioning device also comprises a first torque measuring unit and a second torque measuring unit, wherein the first torque measuring unit is arranged on the first locking nut to detect the locking torque of the first locking nut, and the second torque measuring unit is arranged on the second locking nut to detect the locking torque of the second locking nut.
According to another aspect of the invention, a method for positioning the loop of the sensitive component of the angular accelerometer by gluing is provided, and the gluing positioning method uses the device for positioning the loop of the sensitive component of the angular accelerometer by gluing.
Further, the cement positioning method comprises the following steps: placing a base on a horizontal table top, and placing a sensor structure shell in a first positioning containing cavity of the base, wherein the first positioning containing cavity is used for positioning the sensor structure shell; the positioning inner core is fixedly arranged at a set position of the sensor structure shell and is provided with a second positioning accommodating cavity; placing the annular ring of the angular velocity meter sensitive assembly on the sensor structure shell, and positioning the angular velocity meter sensitive assembly through the second positioning accommodating cavity; pressing a vertical positioning pressing block on the angular velocity meter sensitive assembly ring to limit the angular velocity meter sensitive assembly ring from moving vertically; applying a set pressing force to the ring of the sensitive assembly of the angular velocity meter by using the locking assembly so as to ensure that the relative position between the ring of the sensitive assembly of the angular velocity meter and the shell of the sensor structure is fixed in the gluing process of the ring of the sensitive assembly of the angular velocity meter; and pouring sealant between the ring of the sensitive assembly of the angular velocity meter and the sensor structure shell, standing for a set time, and after the pouring sealant is completely cemented and cured, removing the locking assembly, the vertical positioning pressing block and the positioning inner core to complete cementing positioning of the ring of the sensitive assembly of the angular velocity meter.
Further, the step of applying a set pressing force to the vertical positioning pressing block by using the locking assembly specifically comprises the following steps: and simultaneously rotating a first locking nut on a first positioning screw rod of the locking assembly and a second locking nut on a second positioning screw rod of the locking assembly to realize simultaneous vertical compression of two sides of a ring of the sensitive assembly of the angular velocity meter.
Further, after the locking assembly is used for applying the set pressing force to the vertical positioning pressing block, the cementing positioning method further comprises the following steps: the locking torque of the first locking nut is detected in real time by the first torque detection unit, and the locking torque of the second locking nut is detected in real time by the second torque detection unit, so that the locking torque of the first locking nut is the same as the locking torque of the second locking nut.
The technical scheme of the invention is applied, and the gluing and positioning device for the sensitive assembly ring of the angular accelerometer is provided, and the device considers that the sensitive assembly ring is made of glass or ceramic materials, is easy to crack under the condition of external mechanical impact or vibration, and can realize the fixed connection of the sensitive assembly ring and the sensor structure shell by adopting a gluing and encapsulating mode, so that the sensitive assembly ring can be prevented from being broken in the connection process, and meanwhile, the sensitive assembly ring can be protected in the working process due to the fact that vibration-damping glue is arranged between the sensitive assembly ring and the sensor structure shell. In addition, because the ring of the sensitive assembly of the accelerometer is an irregular body part consisting of a plurality of glass or ceramic structural parts, when the ring is cemented, a reference mounting point on the structure can not be found, a positioning inner core is designed, the positioning inner core can ensure that the relative position between the ring of the sensitive assembly and the structural shell of the sensor is fixed, the ring of the sensitive assembly of the angular velocity meter can be limited to move along the vertical direction by arranging a vertical positioning pressing block, the relative position between the ring of the sensitive assembly of the angular velocity meter and the structural shell of the sensor can be ensured to be fixed in the process of cementing the ring of the sensitive assembly of the angular velocity meter by arranging a locking assembly, the method greatly improves the stability and the reliability of the connection between the ring of the sensitive assembly and the structural shell of the sensor, improves the consistency and the accuracy of the connection position of the ring of the sensitive assembly of the angular velocity meter and the structural shell of the sensor, and meets the requirement of the fixed connection of the ring of the angular velocity meter on the sensitive assembly, meanwhile, the measurement precision of the angular accelerometer is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments 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 principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic structural diagram of a loop bond positioning device for a sensitive component of an angular accelerometer according to an embodiment of the invention;
FIG. 2 illustrates a front view of a positioning core provided in accordance with a specific embodiment of the present invention;
FIG. 3 illustrates a top view of a vertically positioned compact provided in accordance with an embodiment of the present invention;
FIG. 4 illustrates a top view of a ring of angular velocity meter sensitive components provided in accordance with a particular embodiment of the present invention;
fig. 5 shows a side view of the ring of the angular velocity meter sensitive assembly provided in fig. 4.
Wherein the figures include the following reference numerals:
10. a base; 10a, a first positioning accommodating cavity; 20. positioning the inner core; 20a, a second positioning accommodating cavity; 30. vertically positioning a pressing block; 30a, a through hole; 30b, a first threaded hole; 30c, a second threaded hole; 40. a locking assembly; 41. a first positioning screw; 42. a second positioning screw; 43. a first lock nut; 44. a second lock nut; 100. a sensor structure housing; 200. an angular velocity meter sensitive component loop; 210. a ring body; 220. a working fluid compensator.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
As shown in fig. 1, according to the embodiment of the present invention, there is provided a gluing positioning device for a ring of a sensitive component of an angular accelerometer, the gluing positioning device includes a base 10, a positioning core 20, a vertical positioning pressing block 30 and a locking component 40, the base 10 has a first positioning accommodating cavity 10a, a sensor structure shell is disposed in the first positioning accommodating cavity 10a, the first positioning accommodating cavity 10a is used for positioning the sensor structure shell, the positioning core 20 is detachably disposed at a set position of the sensor structure shell, the positioning core 20 has a second positioning accommodating cavity 20a, the second positioning accommodating cavity 20a is used for fixing a relative position between the ring of the sensitive component of the angular velocity meter and the sensor structure shell, the vertical positioning pressing block 30 is pressable on an upper portion of the ring of the sensitive component of the angular velocity meter, the vertical positioning pressing block 30 is used for limiting the movement of the ring of the sensitive component of the angular velocity meter in a vertical direction, a locking assembly 40 is detachably arranged on the base 10, the locking assembly 40 being adapted to apply a set pressing force to the angular velocity indicator sensitive assembly collar to ensure that the relative position between the angular velocity indicator sensitive assembly collar and the sensor structure housing is fixed during gluing of the angular velocity indicator sensitive assembly collar.
By applying the configuration mode, the gluing and positioning device for the sensitive assembly ring of the angular accelerometer is provided, the device considers that the sensitive assembly ring is made of glass or ceramic materials, the sensitive assembly ring is easy to crack under the condition of external mechanical impact or vibration, the fixed connection between the sensitive assembly ring and the sensor structure shell can be realized by adopting a gluing and filling mode, the sensitive assembly ring can be prevented from being broken in the connection process, and meanwhile, the sensitive assembly ring can be protected in the working process due to the fact that vibration reduction glue is arranged between the sensitive assembly ring and the sensor structure shell. In addition, because the ring of the sensitive assembly of the accelerometer is an irregular body part consisting of a plurality of glass or ceramic structural parts, when the ring is cemented, a reference mounting point on the structure can not be found, a positioning inner core is designed, the positioning inner core can ensure that the relative position between the ring of the sensitive assembly and the structural shell of the sensor is fixed, the ring of the sensitive assembly of the angular velocity meter can be limited to move along the vertical direction by arranging a vertical positioning pressing block, the relative position between the ring of the sensitive assembly of the angular velocity meter and the structural shell of the sensor can be ensured to be fixed in the process of cementing the ring of the sensitive assembly of the angular velocity meter by arranging a locking assembly, the method greatly improves the stability and the reliability of the connection between the ring of the sensitive assembly and the structural shell of the sensor, improves the consistency and the accuracy of the connection position of the ring of the sensitive assembly of the angular velocity meter and, meanwhile, the measurement precision of the angular accelerometer is improved.
Further, in the present invention, as shown in fig. 4 and 5, the angular velocity meter sensitive assembly ring 200 includes a ring body 210 and a working liquid compensator 220, the working liquid compensator 200 is a spherical structure, in order to ensure the accuracy of the connection position of the angular velocity meter sensitive assembly ring and the sensor structure shell, the second positioning accommodating cavity 20a may be configured as an arc-shaped surface accommodating cavity, the arc-shaped surface accommodating cavity is matched with the structure of the working liquid compensator of the angular velocity meter sensitive assembly ring, and the positioning core 20 is attached to the working liquid compensator of the angular velocity meter sensitive assembly ring through the arc-shaped surface accommodating cavity to fix the relative position between the angular velocity meter sensitive assembly ring and the sensor structure shell.
By applying the configuration mode, the ring of the sensitive assembly of the accelerometer is an irregular body part consisting of a plurality of glass or ceramic structural members, and a structural reference mounting point cannot be found when the ring is cemented, so that the positioning inner core is designed, the positioning inner core is arranged at a set position of the sensor structure shell, the structural shape of the second positioning accommodating cavity of the positioning inner core is set to be matched with the structure of the working liquid compensator of the ring of the sensitive assembly of the angular velocity meter, and when the ring of the sensitive assembly is mounted, the position of the ring of the sensitive assembly in the horizontal plane is limited by the cooperation of the second positioning accommodating cavity and the working liquid compensator, so that the relative position between the ring of the sensitive assembly of the angular velocity meter and the sensor structure shell can be ensured to be fixed.
Further, in the invention, the pouring sealant injected between the sensitive component ring and the sensor structure shell flows in the gluing process of the sensitive component ring, and the poured sensitive component ring can randomly move and float upwards due to the fluidity and buoyancy of the sealant before the pouring sealant is solidified, so that the pouring consistency of the product is influenced. In order to prevent the angular velocity meter sensitive component ring from moving up and down in the vertical direction, the vertical positioning pressing block 30 may be configured to have a through hole 30a, the through hole 30a being provided at a central position of the vertical positioning pressing block 30, and the vertical positioning pressing block 30 is pressed against the ring body 210 of the angular velocity meter sensitive component ring 200 through the positioning core 20.
In the present invention, considering that the ring of the sensitive component is a glass or ceramic component, if the vertical positioning pressing block is too light, the ring of the sensitive component cannot be pressed and positioned in use, and if the vertical positioning pressing block is too heavy, for example, a metal material may damage the ring of the sensitive component, based on the above consideration, in order to not only perform the pressing and positioning functions in use, but also prevent the ring of the sensitive component from being damaged in use, the material of the vertical positioning pressing block 30 may be configured to include teflon.
Further, in the invention, in order to realize the locking of the ring of the sensitive component in the glue pouring and gluing process, the locking assembly 40 may be configured to include a first positioning screw 41, a second positioning screw 42, a first locking nut 43 and a second locking nut 44, the first positioning screw 41 and the second positioning screw 42 are fixedly disposed on the base 10 at intervals, the first positioning screw 41 and the second positioning screw 42 are respectively disposed at two sides of the positioning inner core 20, the vertical positioning pressing block 30 further has a first threaded hole 30b and a second threaded hole 30c, the vertical positioning pressing block 30 is matched with the first positioning screw 41 through the first threaded hole 30b and matched with the second positioning screw 42 through the second threaded hole 30c, the first locking nut 43 is matched with the first positioning screw 41, and the second locking nut 44 is matched with the second positioning screw 42 to lock or release the vertical positioning pressing block 30.
Further, in the present invention, since the tightening of the locking assembly is performed at two positions of the sensitive structure loop, in order to prevent the sensitive assembly loop from being slantingly disposed on the sensor structure housing due to the difference in the applied pressure at the two positions, the cementing positioning device may be configured to further include a first torque measuring unit disposed on the first lock nut 43 to detect the locking torque of the first lock nut 43, and a second torque measuring unit disposed on the second lock nut 44 to detect the locking torque of the second lock nut 44. In this way, the first torque measuring unit detects the locking torque of the first locking nut 43 in real time, and the second torque measuring unit detects the locking torque of the second locking nut 44 in real time, and by controlling the locking torque of the first locking nut 43 to be the same as the locking torque of the second locking nut 44, it can be ensured that the ring of the sensitive component is horizontally arranged on the sensor structure housing.
According to another aspect of the invention, a method for positioning the loop of the sensitive component of the angular accelerometer by gluing is provided, and the gluing positioning method uses the device for positioning the loop of the sensitive component of the angular accelerometer by gluing. The cementing and positioning method comprises the following steps: placing a base 10 on a horizontal table top, and placing a sensor structure shell in a first positioning accommodating cavity 10a of the base 10, wherein the first positioning accommodating cavity 10a is used for positioning the sensor structure shell; fixedly arranging a positioning inner core 20 on a set position of the sensor structure shell, wherein the positioning inner core 20 is provided with a second positioning accommodating cavity 20 a; placing the angular velocity meter sensitive component loop 200 on the sensor structure housing, positioning the angular velocity meter sensitive component loop 200 through the second positioning accommodation cavity 20 a; pressing a vertical positioning pressing block 30 on the ring of the angular velocity meter sensitive assembly to limit the movement of the ring of the angular velocity meter sensitive assembly along the vertical direction; applying a set pressing force to the angular velocity meter sensitive assembly ring by using the locking assembly 40 to ensure that the relative position between the angular velocity meter sensitive assembly ring and the sensor structure shell is fixed in the gluing process of the angular velocity meter sensitive assembly ring; pouring sealant between the ring of the sensitive assembly of the angular velocity meter and the sensor structure shell, standing for a set time, and after the pouring sealant is completely cemented and cured, removing the locking assembly 40, the vertical positioning pressing block 30 and the positioning inner core 20 to complete cementing and positioning of the ring of the sensitive assembly of the angular velocity meter.
The method considers that the sensitive assembly ring is made of glass or ceramic materials, and is easy to crack under the condition of external mechanical impact or vibration, the fixed connection between the sensitive assembly ring and the sensor structure shell can be realized by adopting a cementing encapsulation mode, the sensitive assembly ring can be prevented from being broken in the connection process, and meanwhile, vibration reduction glue is arranged between the sensitive assembly ring and the sensor structure shell, so that the sensitive assembly ring can be protected in the working process. In addition, through setting up the location inner core, can guarantee that the relative position between sensitive subassembly ring and the sensor structure casing is fixed, through setting up vertical location briquetting, can restrict the sensitive subassembly ring of angular velocity meter along the ascending removal in vertical, through setting up locking Assembly, can guarantee that the relative position between the sensitive subassembly ring of angular velocity meter and the sensor structure casing is fixed in the glued in-process of sensitive subassembly ring of angular velocity meter, this kind of mode has greatly improved the stability of being connected between sensitive subassembly ring and the sensor structure casing, reliability, the uniformity and the accuracy of both connected positions have been improved, the requirement of angular accelerometer to sensitive subassembly ring fixed connection has been satisfied, angular accelerometer's measurement accuracy has also been improved simultaneously.
Further, in the present invention, in order to simultaneously press both sides of the annular ring of the sensitive component of the angular velocity indicator in the vertical direction, the step of applying the set pressing force to the vertical positioning pressing block 30 by using the locking component 40 specifically comprises: simultaneously rotating the first lock nut 43 on the first positioning screw 41 of the locking assembly 40 and the second lock nut 44 on the second positioning screw 42 of the locking assembly 40 to achieve simultaneous vertical compression of both sides of the angular velocity meter sensitive assembly ring.
In addition, in the present invention, since the locking assembly is pressed at two positions of the sensitive structure ring, in order to prevent the sensitive structure ring from being tilted on the sensor structure housing due to the difference of the pressures applied at the two positions, after the locking assembly 40 is used to apply the set pressing force to the vertical positioning pressing block 30, the cementing positioning method further comprises: the locking torque of the first locking nut 43 is detected in real time by the first torque detection unit, and the locking torque of the second locking nut 44 is detected in real time by the second torque detection unit, so that the locking torque of the first locking nut 43 is the same as the locking torque of the second locking nut 44.
For further understanding of the present invention, the following describes the ring gluing positioning device and method for the sensitive component of the angular accelerometer with reference to fig. 1 to 4.
As shown in fig. 1 to 4, a gluing and positioning device for a ring of a sensitive component of a molecular electronic angular accelerometer according to an embodiment of the present invention includes a base 10, a positioning core 20, a vertical positioning pressing block 30 and a locking component 40, where the base 10 has a first positioning accommodating cavity 10a, a sensor structure shell is disposed in the first positioning accommodating cavity 10a, the first positioning accommodating cavity 10a is used to position the sensor structure shell, the positioning core 20 is detachably disposed at a set position of the sensor structure shell, the positioning core 20 has a second positioning accommodating cavity 20a, the second positioning accommodating cavity 20a is an arc-shaped accommodating cavity, the arc-shaped accommodating cavity is matched with a working liquid compensator of the ring of the sensitive component of the angular velocity meter, and the positioning core ring 20 is attached to the working liquid compensator of the ring of the sensitive component of the angular velocity meter through the arc-shaped accommodating cavity to realize that the sensitive component of the angular velocity meter is attached to the sensor structure shell The relative position between them is fixed. The vertical positioning pressing block 30 can be pressed on the upper portion of the angular velocity meter sensitive assembly ring, the vertical positioning pressing block 30 is used for limiting the angular velocity meter sensitive assembly ring to move vertically, the locking assembly 40 is detachably arranged on the base 10, and the locking assembly 40 is used for applying set pressing force to the angular velocity meter sensitive assembly ring so as to ensure that the relative position between the angular velocity meter sensitive assembly ring 200 and the sensor structure shell 100 is fixed in the gluing process of the angular velocity meter sensitive assembly ring.
The vertical positioning pressing block 30 is configured to have a through hole 30a, the through hole 30a is provided at a central position of the vertical positioning pressing block 30, and the vertical positioning pressing block 30 is pressed against the ring body 210 of the angular velocity meter sensitive member ring 200 through the positioning core 20. The locking assembly 40 comprises a first positioning screw 41, a second positioning screw 42, a first locking nut 43 and a second locking nut 44, the first positioning screw 41 and the second positioning screw 42 are fixedly arranged on the base 10 at intervals, the first positioning screw 41 and the second positioning screw 42 are respectively positioned at two sides of the positioning inner core 20, the vertical positioning pressing block 30 further comprises a first threaded hole 30b and a second threaded hole 30c, the vertical positioning pressing block 30 is matched with the first positioning screw 41 through the first threaded hole 30b and matched with the second positioning screw 42 through the second threaded hole 30c, the first locking nut 43 is matched with the first positioning screw 41, and the second locking nut 44 is matched with the second positioning screw 42 to lock or loosen the positioning vertical pressing block 30.
The method for performing glue positioning between the angular accelerometer sensitive component loop 200 and the sensor structure shell 100 by using the molecular electronic type angular accelerometer sensitive component loop glue positioning device provided by the embodiment comprises the following steps.
Firstly, a base 10 is placed on a flat horizontal table surface, a sensor structure shell 100 is placed in a first positioning accommodating cavity 10a of the base 10, and the first positioning accommodating cavity 10a is used for positioning the sensor structure shell; the positioning inner core 20 is fixedly arranged at a set position of the sensor structure shell, and the positioning inner core 20 is provided with a second positioning accommodating cavity 20 a.
Secondly, the angular velocity meter sensitive component loop 200 is placed on the sensor structure shell 100, and the angular velocity meter sensitive component loop 200 is positioned through the second positioning accommodating cavity 20a to realize the relative position determination of the angular velocity meter sensitive component loop 200 and the sensor structure shell 100.
And thirdly, pressing a vertical positioning pressing block 30 made of polytetrafluoroethylene material on the angular velocity meter sensitive component ring to limit the angular velocity meter sensitive component ring to move vertically.
And step four, simultaneously rotating the first lock nut 43 on the first positioning screw rod 41 of the lock assembly 40 and the second lock nut 44 on the second positioning screw rod 42 of the lock assembly 40 to press the sensitive assembly ring 200 in the vertical direction, and repeatedly verifying to ensure that the relative position of the sensitive assembly ring 200 and the sensor structure shell 100 is fixed when the sensitive assembly ring of the molecular electronic type angular accelerometer is glued under a rotation moment of (5 +/-0.5) N.m. At the same time, the sensitive assembly loop 200 is not damaged by the vertical positioning of the press block 30.
And fifthly, after the assembly of the gluing and positioning device for the ring of the sensitive component of the molecular electronic angular accelerometer is completed, positioning and pressing the ring of the encapsulated sensitive component are realized, pouring sealant between the ring 200 of the sensitive component of the angular velocity indicator and the sensor structure shell 100, standing for 48 hours, reversely rotating the first locking nut 43 on the first positioning screw rod 41 and the second locking nut 44 on the second positioning screw rod 42 after the sealant is completely glued and cured, loosening the vertical positioning pressing block 30, and respectively removing the first locking nut 43, the second locking nut 44, the first positioning screw rod 41, the second positioning screw rod 42, the vertical positioning pressing block 30 and the positioning inner core 20 to complete the gluing and positioning of the ring of the sensitive component of the molecular electronic angular accelerometer.
In conclusion, the invention provides a gluing and positioning device and a gluing and positioning method for a sensitive assembly ring of an angular accelerometer, the gluing and positioning device adopts a split structure, a complete device is formed by assembling, gluing and encapsulating of the sensitive assembly ring is realized, and tests prove that the sensitive assembly ring glued and positioned by the device is stably and reliably fixed and connected with a sensor structure shell. The consistency of the fixed connection relative positions of different products is good, and the requirement of the angular accelerometer on the fixed connection of the ring of the sensitive component is met.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A glue positioning device for a ring of a sensitive component of an angular accelerometer, comprising:
the sensor structure comprises a base (10), wherein the base (10) is provided with a first positioning accommodating cavity (10a), a sensor structure shell is arranged in the first positioning accommodating cavity (10a), and the first positioning accommodating cavity (10a) is used for positioning the sensor structure shell;
a positioning inner core (20), wherein the positioning inner core (20) is detachably arranged at a set position of the sensor structure shell, the positioning inner core (20) is provided with a second positioning accommodating cavity (20a), and the second positioning accommodating cavity (20a) is used for realizing the relative position fixation between the angular accelerometer sensitive component ring and the sensor structure shell;
the vertical positioning pressing block (30) is pressed at the upper part of the angular accelerometer sensitive component ring, and the vertical positioning pressing block (30) is used for limiting the angular accelerometer sensitive component ring to move in the vertical direction;
a locking assembly (40), wherein the locking assembly (40) is detachably arranged on the base (10), and the locking assembly (40) is used for applying a set pressing force to the angular accelerometer sensitive assembly ring so as to ensure that the relative position between the angular accelerometer sensitive assembly ring and the sensor structure shell is fixed in the gluing process of the angular accelerometer sensitive assembly ring.
2. The gluing and positioning device for the sensitive assembly ring of the angular accelerometer according to claim 1, wherein the second positioning accommodating cavity (20a) is an arc-shaped surface accommodating cavity which is matched with the structure of the working liquid compensator of the sensitive assembly ring of the angular accelerometer, and the positioning inner core (20) is jointed with the working liquid compensator of the sensitive assembly ring of the angular accelerometer through the arc-shaped surface accommodating cavity so as to realize the relative position fixation between the sensitive assembly ring of the angular accelerometer and the sensor structure shell.
3. The gluing and positioning device for the annular ring of sensitive components of angular accelerometers of claim 1, characterized in that said vertical positioning block (30) has a through hole (30a), said through hole (30a) being arranged in the central position of said vertical positioning block (30), said vertical positioning block (30) being pressed on the annular body of said annular ring of sensitive components of angular accelerometers through said positioning core (20).
4. The annular ring gluing and positioning device for sensitive components of angular accelerometers according to claim 3, characterized in that the material of said vertical positioning block (30) comprises polytetrafluoroethylene.
5. The annular ring gluing and positioning device for the sensitive component of an angular accelerometer according to claim 3, wherein the locking component (40) comprises a first positioning screw (41), a second positioning screw (42), a first locking nut (43) and a second locking nut (44), the first positioning screw (41) and the second positioning screw (42) are fixedly arranged on the base (10) at intervals, the first positioning screw (41) and the second positioning screw (42) are respectively arranged at two sides of the positioning inner core (20), the vertical positioning pressing block (30) further comprises a first threaded hole (30b) and a second threaded hole (30c), the vertical positioning pressing block (30) is matched with the first positioning screw (41) through the first threaded hole (30b) and is matched with the second positioning screw (42) through the second threaded hole (30c), the first locking nut (43) is matched with the first positioning screw rod (41) and the second locking nut (44) is matched with the second positioning screw rod (42) to lock or loosen the vertical positioning pressing block (30).
6. The angular accelerometer sensitive assembly loop glue positioning device according to claim 5, further comprising a first torque determination unit disposed on the first lock nut (43) to detect the locking torque of the first lock nut (43) and a second torque determination unit disposed on the second lock nut (44) to detect the locking torque of the second lock nut (44).
7. A method for positioning a loop of a sensitive component of an angular accelerometer by gluing, wherein the method for positioning the loop of the sensitive component of the angular accelerometer uses the device for positioning the loop of the sensitive component of the angular accelerometer by gluing according to any one of claims 1 to 6.
8. The method of claim 7, wherein the method comprises the following steps:
placing a base (10) on a horizontal table surface, and placing a sensor structure shell in a first positioning accommodating cavity (10a) of the base (10), wherein the first positioning accommodating cavity (10a) is used for positioning the sensor structure shell;
fixedly arranging a positioning inner core (20) on a set position of the sensor structure shell, wherein the positioning inner core (20) is provided with a second positioning accommodating cavity (20 a);
-placing a ring of angular accelerometer sensitive components on the sensor structure housing, positioning the ring of angular accelerometer sensitive components through the second positioning housing cavity (20 a);
pressing a vertical positioning pressing block (30) on the angular accelerometer sensitive component ring to limit the angular accelerometer sensitive component ring from moving in the vertical direction;
applying a set pressing force to the angular accelerometer sensitive assembly loop by using a locking assembly (40) to ensure that the relative position between the angular accelerometer sensitive assembly loop and the sensor structure shell is fixed during gluing of the angular accelerometer sensitive assembly loop;
pouring sealant between the angular accelerometer sensitive component ring and the sensor structure shell, standing for a set time, and after the pouring sealant is completely cemented and cured, detaching the locking component (40), the vertical positioning pressing block (30) and the positioning inner core (20) to complete cementing positioning of the angular accelerometer sensitive component ring.
9. Method for glue-positioning of loops of sensitive components of angular accelerometers according to claim 8, characterized in that the application of a set pressing force to said vertical positioning block (30) by means of a locking assembly (40) comprises in particular: and simultaneously rotating a first lock nut (43) on a first positioning screw rod (41) of the locking assembly (40) and a second lock nut (44) on a second positioning screw rod (42) of the locking assembly (40) to realize simultaneous compression of two sides of a ring of the angular accelerometer sensitive assembly along the vertical direction.
10. The method for glue positioning of loops of sensitive components of angular accelerometers according to claim 9, characterized in that after applying a set pressing force to the vertical positioning block (30) with a locking assembly (40), the method further comprises: and a first torque measuring unit is used for detecting the locking torque of the first locking nut (43) in real time, and a second torque measuring unit is used for detecting the locking torque of the second locking nut (44) in real time, so that the locking torque of the first locking nut (43) is ensured to be the same as the locking torque of the second locking nut (44).
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| CN1156677C (en) * | 2002-04-03 | 2004-07-07 | 中国航天科工集团第三研究院第三十三研究所 | Molecule-type liquid-ring angular accelerometer |
| CN100399550C (en) * | 2003-02-03 | 2008-07-02 | 株式会社电装 | Sensor device and ceramic encapsulation shell for mounting electronic pieces |
| TWI325958B (en) * | 2007-04-26 | 2010-06-11 | Ind Tech Res Inst | Inertial sensor and producing method thereof |
| CN101299048B (en) * | 2008-07-04 | 2010-12-08 | 嘉兴学院 | Rotating angular acceleration sensor |
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