A honeycomb amplifying fiber pushing device and working method thereof

Abstract

The present invention discloses a honeycomb amplification type fiber pushing device and its working method, the device comprises a workbench, a manually adjustable micro-motion platform and a honeycomb displacement output mechanism; the manually adjustable micro-motion platform is fixed on the workbench, and the honeycomb displacement output mechanism is fixed on the front side of the manually adjustable micro-motion platform; the honeycomb displacement output mechanism comprises a frame-type honeycomb amplification mechanism, a pin and a plurality of amplification components; the amplification components are arranged on the frame-type honeycomb amplification mechanism; the amplification components comprise a bridge-type amplification mechanism, a piezoelectric ceramic group, a piezoelectric ceramic positive input wiring and a piezoelectric ceramic negative input wiring; the fiber glass sheet to be detected is fixed on the workbench and is located below the pin; by inputting a signal to the piezoelectric ceramic group, the piezoelectric ceramic group is stretched and a displacement is output, the displacement is amplified by the bridge-type amplification mechanism, and the pin moves downward accordingly to push out a single fiber of the fiber glass sheet. The present invention has the advantages of simple device structure, fast response speed, high positioning accuracy, etc.

Description

Technical Field

[0001] The invention belongs to the technical field of piezoelectric precision actuation, and relates to a fiber pushing device, in particular to a honeycomb amplified fiber pushing device and a working method thereof. Background Art

[0002] Piezoelectric actuation technology is an emerging technology that uses the inverse piezoelectric effect of piezoelectric materials to convert electrical energy into mechanical energy for macroscopic motion. It can meet the requirements of many high-tech fields due to its related components' small size, high precision, fast response, power-off self-locking, and immunity to electromagnetic interference. According to the different excitation methods during actuation, it can be divided into resonant and non-resonant types. The core component of the resonant type is a single-chip piezoelectric ceramic. The piezoelectric element is used to excite the resonance of the elastic body to obtain amplified deformation, and the deformation is driven by friction to output components to form macroscopic motion. The actuation methods of the non-resonant type and the resonant type are similar. The difference is that the core component is a laminated piezoelectric ceramic, and the resonant mode of the elastic body is not required during operation. The non-resonant type avoids the use of resonant modes, making it more suitable for use in various environments.

[0003] The purpose of the fiber push-out test is to test the changes in key performance parameters when a single fiber is pushed out from a fiber slide. The main measured quantities include push-out speed and push-out force. Since the scale of a single fiber is at the micron level, the test device is usually required to have a large thrust of more than 100 Newtons, micron-level positioning accuracy, and good step controllability. Early fiber push-out devices usually use servo motors to achieve push-out, which can meet large thrust and long stroke. The disadvantage is that the accuracy is not high, it is difficult to ensure the controllability of step motion, and it is easy to cause fiber damage.

[0004] The invention patent application entitled "A fiber ejection device based on laminated piezoelectric ceramics and its working method" (application number 201910061558.3) discloses a fiber ejection device. Although piezoelectric elements are used, this transversely laminated piezoelectric ceramic structure is prone to instability during the pushing process and is easily damaged by shear force. In addition, the ejection displacement it can produce is limited, and sometimes a single fiber cannot be completely pushed out, and the complete residual stress between a single fiber and the glass slide cannot be obtained. Secondly, the horizontal push-type structural distribution causes the self-weight of the displacement output structure to cause lateral interference to the ejector pin, affecting the test results. Summary of the invention

[0005] The present invention provides a honeycomb magnifying fiber pushing device and a working method thereof to overcome the defects of the prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides a honeycomb amplifying fiber pushing device, comprising a workbench, a manually adjustable micro-motion platform and a honeycomb displacement output mechanism; the manually adjustable micro-motion platform is fixed on the workbench, and the honeycomb displacement output mechanism is fixed on the front side of the manually adjustable micro-motion platform, and the honeycomb displacement output mechanism is driven to move up and down by adjusting the manually adjustable micro-motion platform; the honeycomb displacement output mechanism comprises a frame-type honeycomb amplifying mechanism, an ejector pin and a plurality of groups of amplifying components; the frame-type honeycomb amplifying mechanism is a frame body, and has a mechanism fixing part, two vertical amplifying sections and an ejector pin fixing part, the mechanism fixing part is located above the ejector pin fixing part, and the two vertical amplifying sections are vertically arranged between the upper fixing part and the lower ejector pin fixing section; the mechanism fixing part is fixed on the front side of the manually adjustable micro-motion platform, and the ejector pin is fixed on the lower end of the ejector pin fixing part; the number of amplifying components is plural, and the plurality of groups of amplifying components are divided into two columns, and are symmetrically arranged one by one on the two vertical amplifying sections; the amplifying components The device comprises a bridge amplifier mechanism, a piezoelectric ceramic group, a piezoelectric ceramic positive electrode input wiring and a piezoelectric ceramic negative electrode input wiring; the bridge amplifier mechanism is connected to the vertical amplifier section, and the displacement output end of the bridge amplifier mechanism is consistent with the vertical length direction of the vertical amplifier section; the piezoelectric ceramic group is arranged horizontally in the bridge amplifier mechanism, which is consistent with the displacement input end of the bridge amplifier mechanism; the piezoelectric ceramic positive electrode input wiring and the piezoelectric ceramic negative electrode input wiring are both connected to the piezoelectric ceramic group; the fiber glass sheet to be tested is fixed on the workbench and is located below the ejector pin; the honeycomb displacement output mechanism can be moved down to the single fiber of the fiber glass sheet by adjusting the manually adjustable micro-motion platform, and the ejector pin is aligned with the ejector pin and attached to the fiber glass sheet, and a signal is input to the piezoelectric ceramic group through the piezoelectric ceramic positive electrode input wiring and the piezoelectric ceramic negative electrode input wiring, so that the piezoelectric ceramic group is stretched and the displacement is output, and the displacement is amplified by the bridge amplifier mechanism, the frame honeycomb amplifier mechanism is stretched, and the ejector pin is moved down accordingly to push out the single fiber of the fiber glass sheet.

[0007] Furthermore, the present invention provides a honeycomb amplifying fiber pushing device, which may also have the following characteristics: wherein the number of amplifying components is four.

[0008] Furthermore, the present invention provides a honeycomb magnifying fiber pushing device, which may also have the following characteristics: wherein, the bridge-type magnifying mechanism is a rectangular frame with slits; the rectangular frame and the vertical magnifying section of the frame-type honeycomb magnifying mechanism are integrally formed, and the middle parts of the upper and lower sides of the rectangular frame are respectively continuously connected to the vertical magnifying section; the upper horizontal side of the rectangular frame has two inner slits with cuts facing the upper end and running through the front and back, and the two inner slits are respectively located at relative positions on the left and right sides of the vertical magnifying section, and the upper horizontal side also has two outer slits with cuts facing the lower end and running through the front and back, and the two outer slits are respectively located at relative positions on the inner sides of the two vertical sides of the rectangular frame; the slits on the lower horizontal side of the rectangular frame are symmetrically arranged with the upper horizontal side.

[0009] Furthermore, the present invention provides a honeycomb amplifying fiber ejecting device, which may also have the following characteristics: wherein the piezoelectric ceramic group is clamped and fixed between two vertical sides of the bridge amplifying mechanism.

[0010] Furthermore, the present invention provides a honeycomb magnifying fiber ejection device, which may also have the following characteristics: wherein, the vertical cross-section of the workbench in the front-to-back direction is an inverted T-shape, the surface in the middle is higher than the surfaces in the front and rear, the manually adjustable micro-motion platform is fixed on the surface in the middle of the workbench, and the fiber glass sheet is fixed on the surface in the front of the workbench.

[0011] Furthermore, the present invention provides a honeycomb magnifying fiber pushing device, which may also have the following characteristics: wherein, the workbench has two fixed glass slide clamps, the ends of the fixed glass slide clamps are fixed to the workbench by screws, and the fiber glass slide is fixedly pressed under the fixed glass slide clamps.

[0012] Furthermore, the present invention provides a honeycomb magnifying fiber pushing device, which may also have the following characteristics: wherein the workbench has a collecting slit, which is arranged directly below the ejector pin.

[0013] Furthermore, the present invention provides a honeycomb magnifying fiber pushing device, which may also have the following characteristics: wherein, the manually adjustable micro-motion platform has a fixed body and an up and down motion platform, the fixed body is fixed on the workbench, and the up and down motion platform is arranged on the front side of the fixed body and can be adjusted and moved up and down relative to the fixed body; the honeycomb displacement output mechanism is fixed on the front side of the up and down motion platform.

[0014] The present invention also provides a working method of a honeycomb amplification fiber pushing device: step 1, connecting a piezoelectric ceramic group that is not installed in a bridge-type amplification mechanism to a charge amplifier, applying pressure to the piezoelectric ceramic group, recording the change in the charge amplifier indication, and calibrating the relationship between the applied pressure and the voltage generated by the piezoelectric ceramic group; step 2, installing each piezoelectric ceramic group into a corresponding bridge-type amplification mechanism, and connecting a piezoelectric ceramic group positive electrode sensing wiring and a piezoelectric ceramic group negative electrode sensing wiring to the piezoelectric ceramic group, and connecting the piezoelectric ceramic group positive electrode sensing wiring and the piezoelectric ceramic group negative electrode sensing wiring to the charge amplifier; A macro device is provided, and a microscope is set in front of the workbench to observe the alignment of the ejector pin and the single fiber in the fiber glass slide; Step three, by manually adjusting the micro-motion platform and observing under the microscope, the ejector pin is adjusted to align and stick to the single fiber in the fiber glass slide, and the periodic step wave signal generated by the signal generator and the power amplifier is output to the piezoelectric ceramic group, and the displacement amplified by the ejector pin output is recorded through the honeycomb amplification mechanism. At the same time, the change of the charge amplifier reading during the ejection of the single fiber is recorded, and the change of the internal force during the fiber pushing process is deduced according to the relationship calibrated in Step one.

[0015] The present invention also provides another working method of the honeycomb amplifying fiber pushing device: step 1, arranging a pressure sensor between the workbench and the fiber glass slide, and setting a microscope in front of the workbench to observe the alignment of the ejector pin and the single fiber in the fiber glass slide; step 2, adjusting the ejector pin to align and stick to the single fiber in the fiber glass slide by manually adjusting the micro-motion platform and observing under the microscope, outputting a periodic step wave signal generated by the signal generator and the power amplifier to the piezoelectric ceramic group, and recording the displacement of the ejector pin after amplification through the honeycomb amplifying mechanism, and recording the change of the pressure sensor reading during the process of pushing out the single fiber, thereby obtaining the change of the internal force during the fiber pushing out process.

[0016] The beneficial effects of the present invention are:

[0017] 1. Compared with the traditional motor drive device, this fiber ejection device uses a piezoelectric ceramic group as a driving element, which has a power-off self-locking function, avoids the influence of the inertia of the servo motor, and ensures controllability in the step test.

[0018] 2. Compared with the existing piezoelectric ceramic ejection device, the fiber ejection device uses a honeycomb amplification structure to achieve amplified displacement and a larger stroke while ensuring the thrust during the ejection process.

[0019] First, the honeycomb amplification mechanism uses a bridge amplification mechanism to amplify the displacement generated by the stacked piezoelectric ceramics. Compared with the previous piezoelectric ceramic ejection device, the ejection displacement that can be generated is amplified by 2-3 times, which is conducive to completely ejecting a single fiber from the fiber glass slide, thereby completely measuring the residual stress between a single fiber and the glass slide.

[0020] Secondly, the honeycomb amplification mechanism adopts a bilaterally symmetrical dispersed structure layout, which, on the one hand, avoids arranging too many components on the output lines of force and displacement, thereby causing structural instability during the pushing process, and on the other hand, reduces to a certain extent the possibility of damage to the laminated piezoelectric ceramics due to shear force.

[0021] In addition, compared with the previous horizontal push structure of the piezoelectric ceramic ejection device, the honeycomb amplification mechanism adopts a vertical arrangement, which avoids the lateral interference of the displacement output structure's own weight on the ejector pin, and the force distribution is more uniform, the control is more accurate, and it also makes the addition of peripheral measurement equipment more convenient.

[0022] 3. For the bridge-type amplification mechanism that constitutes the honeycomb structure, firstly, the force output by the piezoelectric ceramic when it is extended is much greater than the force generated by the rebound of the mechanism when it is retracted. The use of this bridge-type amplification mechanism can make the piezoelectric ceramic output the displacement at the ejector end when it is extended, which can provide a larger output force and displacement. Secondly, the bridge-type amplification mechanism is processed in an integrated manner, and the amplification factor of the mechanism can be flexibly controlled by adjusting the size of the slit. It is easy to process and has a compact structure. In addition, the piezoelectric ceramic is placed in the structure by horizontally expanding it, and then the structure is restored to apply the preload required for the normal operation of the piezoelectric ceramic. It is easy to assemble and reliable in operation.

[0023] Fourth, this device can obtain the internal force changes during the fiber pushing process through two working methods. According to the internal force changes, several key performance parameters of composite material interfaces such as fiber interface shear strength and interface fracture toughness can be derived, so as to further study the deformation and failure mechanism of fiber composite materials.

[0024] In order to solve the problem of large experimental result errors caused by the inability to achieve both stroke, precision and controllability in the existing fiber pushing device, the present invention provides a honeycomb amplified fiber pushing device and a working method thereof. The fiber pushing device constructed with piezoelectric elements can effectively meet the thrust, stroke and precision requirements in the fiber pushing process, and can improve the compatibility of the device in key parameters such as stroke, precision and controllability. At the same time, a series of parameters can be easily measured by using certain sensing test equipment, and the pushing condition of a single fiber can be measured more accurately. The present invention has the advantages of simple device structure, fast response speed, high positioning accuracy, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of a honeycomb amplified fiber pushing device;

[0026] Figure 2 It is a schematic diagram of the structure decomposition of a honeycomb amplified fiber ejection device;

[0027] Figure 3 It is a structural schematic diagram of a honeycomb displacement output mechanism;

[0028] Figure 4 It is a partial structural decomposition diagram of the honeycomb displacement output mechanism;

[0029] Figure 5 yes Figure 3 Enlarged view of the middle I area;

[0030] Figure 6 It is the front view of the bridge-type amplification mechanism;

[0031] Figure 7 It is a structural schematic diagram of a honeycomb displacement output mechanism of multiple groups of amplification components;

[0032] Figure 8 is a schematic diagram of the working of the fiber pushing device in method 1;

[0033] Fig. 9 This is a schematic diagram of the structure of the amplified component in method 2

[0034] Fig.10 It is a graph showing the relationship between the calibrated external pressure in step 1 and the voltage reading generated by the piezoelectric ceramic group in the specific example of method 2;

[0035] Fig.11 This is a diagram showing the changes in internal force during the push-out process in step three of the specific example of method two. DETAILED DESCRIPTION

[0036] The specific implementation of the present invention is described below with reference to the accompanying drawings.

[0037] like Figure 1 and 2 As shown, the present invention provides a honeycomb magnifying fiber pushing device, which includes a workbench 1, a manually adjustable micro-motion platform 2 and a honeycomb displacement output mechanism 3.

[0038] The manually adjustable micro-motion platform 2 is fixed on the workbench 1 , and the honeycomb displacement output mechanism 3 is fixed on the front side of the manually adjustable micro-motion platform 2 . By adjusting the manually adjustable micro-motion platform 2 , the honeycomb displacement output mechanism 3 is driven to move up and down.

[0039] Specifically, the workbench 1 is a front-to-back symmetrical structure, the vertical cross section in the front-to-back direction is an inverted T-shape, and the surface of the middle part is higher than the surfaces of the front and rear parts. The manually adjustable micro-motion platform 2 is fixed on the surface of the middle part of the workbench 1.

[0040] The manually adjustable micro-motion platform 2 has a fixed body 21 and an up-and-down motion platform 22. The edges of the lower end of the fixed body 21 are fixed to the middle surface of the workbench 1 by screws. The up-and-down motion platform 22 is arranged on the front side of the fixed body 21 and can be adjusted and moved up and down relative to the fixed body 21. The model of the manually adjustable micro-motion platform is MS-XYZ25-63 manual three-dimensional translation stage.

[0041] like Figure 1-6 As shown, the honeycomb displacement output mechanism 3 includes a frame-type honeycomb amplifying mechanism 31 , a pin 32 and four groups of amplifying components 33 .

[0042] The frame-type honeycomb amplifying mechanism 31 is a frame body, having a mechanism fixing portion 311, two vertical amplifying sections 312 and an ejector fixing portion 313. The mechanism fixing portion 311 is located above the ejector fixing portion 313, and the two vertical amplifying sections 312 are vertically arranged between the upper fixing portion and the lower ejector fixing section.

[0043] The mechanism fixing portion 311 is fixed to the front side of the up-and-down motion platform 22 of the manual fine-motion platform 2 by four screws.

[0044] The ejector pin 32 is fixed to the lower end of the ejector pin fixing portion 313 and is threadedly connected to the ejector pin fixing portion 313 .

[0045] The amplifying component 33 includes a bridge amplifying mechanism 331 , a piezoelectric ceramic group 332 , a piezoelectric ceramic positive input connection 333 and a piezoelectric ceramic negative input connection 334 .

[0046] The bridge amplifying mechanism 331 is connected to the vertical amplifying section 312, and the displacement output end a of the bridge amplifying mechanism 331 is consistent with the vertical length direction of the vertical amplifying section 312. Figure 6 The piezoelectric ceramic group 332 is disposed transversely in the bridge amplifier mechanism 331 , and is consistent with the displacement input end b of the bridge amplifier mechanism 331 .

[0047] Specifically, the bridge-type amplifying mechanism 331 is a rectangular frame with slits. The rectangular frame is integrally formed with the vertical amplifying section 312 of the frame-type honeycomb amplifying mechanism 31 , and the middle of the upper side and the lower side of the rectangular frame are respectively continuously connected with the vertical amplifying section 312 .

[0048] The upper horizontal side of the rectangular frame has two inner slits 3311 with the cuts facing the upper end and running through the front and back, and the two inner slits 3311 are respectively located at relative positions on the left and right sides of the vertical enlarged section 312. The upper horizontal side also has two outer slits 3312 with the cuts facing the lower end and running through the front and back, and the two outer slits 3312 are respectively located at relative positions on the inner sides of the two vertical sides of the rectangular frame. The slits on the lower horizontal side of the rectangular frame are symmetrically arranged with the upper horizontal side.

[0049] The piezoelectric ceramic group 332 is clamped and fixed between the two vertical sides of the bridge-type amplifier mechanism 331. That is, the length of the piezoelectric ceramic group 332 is greater than the distance between the two vertical sides of the bridge-type amplifier mechanism 331. When the bridge-type amplifier mechanism 331 is installed, the piezoelectric ceramic group 332 is inserted into the bridge-type amplifier mechanism 331. When the piezoelectric ceramic group 332 is stretched laterally, the displacement is input to the displacement input end of the bridge-type amplifier mechanism 331, so that the distance between the upper and lower ends of the bridge-type amplifier mechanism 331 increases, that is, the displacement output end of the bridge-type amplifier mechanism 331 outputs the displacement, and the amplification process is realized.

[0050] The piezoelectric ceramic positive electrode input wiring 333 and the piezoelectric ceramic negative electrode input wiring 334 are both connected to the piezoelectric ceramic group 332 .

[0051] In this embodiment, the number of the amplifying components 33 may also be other numbers, which must satisfy the following conditions: the number of the amplifying components is plural, and the groups of amplifying components are divided into two columns and are symmetrically arranged one by one on the two vertical amplifying sections, such as Figure 7 shown.

[0052] The fiber glass slide 4 to be tested is fixed on the surface of the front part of the workbench 1, below the ejector pin 32. Specifically, the workbench 1 has two fixed glass slide clamps 11, the ends of which are fixed on the surface of the front part of the workbench 1 by screws, and the fiber glass slide 4 is fixedly pressed under the fixed glass slide clamps 11.

[0053] The workbench 1 has a collecting slit 12, which is arranged just below the ejector pin 32 and is used to collect the single fiber ejected during the test.

[0054] When in use, the honeycomb displacement output mechanism 3 can be moved down by adjusting the manually adjustable micro-motion platform 2 until the ejector pin 32 is aligned with a single fiber attached to the fiber glass sheet 4. A signal is input to the piezoelectric ceramic group 332 through the piezoelectric ceramic positive input wiring 333 and the piezoelectric ceramic negative input wiring 334, and the piezoelectric ceramic group 332 is extended to output displacement, which is amplified by the bridge amplifier mechanism 331, and the frame honeycomb amplifier mechanism 31 is extended, and the ejector pin 32 is moved down accordingly, pushing out the single fiber of the fiber glass sheet 4.

[0055] Working method 1 of the honeycomb amplification fiber ejection device:

[0056] Step 1: Figure 8 As shown, a pressure sensor is arranged between the workbench 1 and the fiber glass slide 4, and a microscope 5 is set in front of the workbench 1 to observe the alignment of the ejector pin 32 and the single fiber in the fiber glass slide 4.

[0057] Step 2: Through the observation of the microscope 5, the up-and-down motion platform 22 of the manually adjustable micro-motion platform 2 is adjusted to drive the ejector pin 32 to move downward to align with and close to the single fiber in the fiber glass slide 4. The periodic step wave signal generated by the signal generator and the power amplifier is output to the piezoelectric ceramic group through the piezoelectric ceramic positive electrode input connection and the piezoelectric ceramic negative electrode input connection, and the amplified displacement is output to the ejector pin 32 through the honeycomb amplification mechanism, and the change of the indication of the pressure sensor during the process of pushing out the single fiber is recorded, so as to obtain the change of the internal force during the fiber pushing out process.

[0058] Working method 2 of the honeycomb amplification fiber ejection device:

[0059] Step 1: Connect the piezoelectric ceramic group that is not installed in the bridge amplifier mechanism (i.e., the separate piezoelectric ceramic group before installation) to the charge amplifier, apply pressure to the piezoelectric ceramic group, record the change in the charge amplifier reading, and calibrate the relationship between the applied pressure and the voltage generated by the piezoelectric ceramic group. Since each piezoelectric ceramic group is the same, it is only necessary to calibrate the relationship between the applied pressure and the generated voltage of one piezoelectric ceramic group.

[0060] Step 2: Install each piezoelectric ceramic group into the corresponding bridge amplifier mechanism. Connect a piezoelectric ceramic group positive electrode sensing wire 335 and a piezoelectric ceramic group negative electrode sensing wire 336 to the piezoelectric ceramic group 332, as shown in FIG. Fig. 9 As shown. The positive sensing wiring of the piezoelectric ceramic group and the negative sensing wiring of the piezoelectric ceramic group are connected to the charge amplifier. A microscope is set in front of the workbench to observe the alignment of the ejector pin and the single fiber in the fiber glass slide.

[0061] Step 3: Through observation under a microscope, adjust the up-and-down motion platform 22 of the manual micro-motion platform to drive the ejector pin 32 to move downward to align with and close to the single fiber in the fiber glass slide 4. The piezoelectric ceramic positive input connection 333 and the piezoelectric ceramic negative input connection 334 output the periodic step wave signal generated by the signal generator and the power amplifier to the piezoelectric ceramic group 332, and the amplified displacement is output at the ejector pin 32 through the honeycomb amplification mechanism. At the same time, the change in the indication of the charge amplifier connected by the piezoelectric ceramic group positive sensing connection 335 and the piezoelectric ceramic group negative sensing connection 336 in the process of ejecting a single fiber is recorded, and the change in the internal force of the fiber ejection process is deduced according to the relationship calibrated in step 1.

[0062] The specific calculation example is as follows:

[0063] The relationship between the calibrated external pressure obtained in step 1 and the voltage reading generated by the piezoelectric ceramic group is as follows: Fig.10 And the following table shows:

[0064] F / N 0.5 1 1.5 2 2.5 3 3.5 U / mV 11 14 16.3 20 23 26 30

[0065] Fig.10 In the figure, the horizontal axis is the charge amplifier reading and the vertical axis is the external pressure.

[0066] Step 3: The piezoelectric ceramic group is connected to a periodic step wave signal as shown in the following table: (It can only be effectively deduced when the signal is an ascending step. Taking five steps as an example, the more steps the actual signal has, the closer the result is to the actual situation.)

[0067]

[0068]

[0069] At the same time, the positive sensing wiring of the piezoelectric ceramic group and the negative sensing wiring of the piezoelectric ceramic group led out from the piezoelectric ceramic group are connected to the charge amplifier to record the changes in the readings during the ejection process as shown in the following table: (the step wave signal connected itself is filtered out).

[0070] t / s 0 1 2 3 4 5 Ue / V 0 10.8 14.3 15 15.8 16.2

[0071] Then, according to the calibration relationship obtained in step 1, the change of internal force during the pushing process is obtained as follows: Fig.10 And the following table shows:

[0072] t / s 0 1 2 3 4 5 Fi / N 0 0.538 1.098 1.21 1.338 1.402

[0073] Fig.11 In the figure, the horizontal axis is time and the vertical axis is the derived internal force.

Claims

1. A honeycomb magnifying fiber ejection device, characterized in that: It includes a workbench, a manually adjustable micro-motion platform and a honeycomb type displacement output mechanism; The manually adjustable micro-motion platform is fixed on the workbench, and the honeycomb displacement output mechanism is fixed on the front side of the manually adjustable micro-motion platform. The honeycomb displacement output mechanism is driven to move up and down by adjusting the manually adjustable micro-motion platform. The honeycomb displacement output mechanism includes a frame-type honeycomb amplifying mechanism, a ejector pin and a plurality of amplifying components; The frame-type honeycomb amplifying mechanism is a frame body, having a mechanism fixing portion, two vertical amplifying sections and an ejector fixing portion, the mechanism fixing portion is located above the ejector fixing portion, and the two vertical amplifying sections are vertically arranged between the upper fixing portion and the lower ejector fixing section; The mechanism fixing part is fixed to the front side of the manually adjustable micro-motion platform; The ejector pin is fixed at the lower end of the ejector pin fixing portion; The number of the amplifying components is plural, and the groups of amplifying components are divided into two rows and symmetrically arranged one by one on the two vertical amplifying sections; The amplifying component includes a bridge amplifying mechanism, a piezoelectric ceramic group, a piezoelectric ceramic positive electrode input wiring and a piezoelectric ceramic negative electrode input wiring; The bridge-type amplifying mechanism is connected to the vertical amplifying section, and the displacement output end of the bridge-type amplifying mechanism is consistent with the vertical length direction of the vertical amplifying section; The piezoelectric ceramic group is laterally arranged in the bridge-type amplifier mechanism, and is consistent with the displacement input end of the bridge-type amplifier mechanism; The piezoelectric ceramic positive electrode input wiring and the piezoelectric ceramic negative electrode input wiring are both connected to the piezoelectric ceramic group; The fiberglass slide being tested is fixed on the workbench, below the ejector pin; The honeycomb displacement output mechanism can be adjusted by the manual adjustment micro-motion platform, and moved down until the top needle is aligned with a single fiber attached to the fiber glass sheet, and a signal is input to the piezoelectric ceramic group through the piezoelectric ceramic positive input wiring and the piezoelectric ceramic negative input wiring, and the piezoelectric ceramic group is extended, and the displacement is output, and the displacement is amplified by the bridge-type amplification mechanism, and the frame-type honeycomb amplification mechanism is extended, and the top needle moves down accordingly, and the single fiber of the fiber glass sheet is pushed out; The bridge-type amplifying mechanism is a rectangular frame with slits; the rectangular frame is integrally formed with the vertical amplifying section of the frame-type honeycomb-type amplifying mechanism, and the middle parts of the upper and lower sides of the rectangular frame are respectively continuously connected with the vertical amplifying section; the upper horizontal side of the rectangular frame has two inner slits with cuts toward the upper end and penetrating from front to back, and the two inner slits are respectively located at relative positions on the left and right sides of the vertical amplifying section, and the upper horizontal side also has two outer slits with cuts toward the lower end and penetrating from front to back, and the two outer slits are respectively located at relative positions on the inner sides of the two vertical sides of the rectangular frame; the slits of the lower horizontal side of the rectangular frame are symmetrically arranged with the upper horizontal side; The vertical cross-section of the workbench in the front-to-back direction is in an inverted T shape, the surface in the middle is higher than the surfaces in the front and rear, the manually adjustable micro-motion platform is fixed on the surface in the middle of the workbench, and the fiberglass is fixed on the surface in the front of the workbench.

2. The honeycomb magnifying fiber ejecting device according to claim 1, characterized in that: in, The number of the amplifying components is four.

3. The honeycomb magnifying fiber ejecting device according to claim 1, characterized in that: in, The piezoelectric ceramic group is clamped and fixed between two vertical sides of the bridge amplifier mechanism.

4. The honeycomb magnifying fiber ejecting device according to claim 1, characterized in that: in, The workbench is provided with two fixed glass slide clamps, the ends of which are fixed on the workbench by screws, and the fiber glass slide is fixedly pressed under the fixed glass slide clamps.

5. The honeycomb magnifying fiber ejecting device according to claim 1, characterized in that: in, The workbench has a collecting slot which is arranged just below the ejector pin.

6. The honeycomb magnifying fiber ejecting device according to claim 1, characterized in that: in, The manually adjustable micro-motion platform comprises a fixed body and an up-and-down motion platform, wherein the fixed body is fixed on the workbench, and the up-and-down motion platform is arranged at the front side of the fixed body and can be adjusted and moved up and down relative to the fixed body; The honeycomb type displacement output mechanism is fixed on the front side of the up and down motion platform.

7. The working method of the honeycomb amplifying fiber ejecting device as claimed in claim 1, characterized in that: Step 1: Connect the piezoelectric ceramic group that is not installed in the bridge amplifier mechanism to the charge amplifier, apply pressure to the piezoelectric ceramic group, record the change of the charge amplifier reading, and calibrate the relationship between the applied pressure and the voltage generated by the piezoelectric ceramic group; Step 2: Install each piezoelectric ceramic group into a corresponding bridge amplifier mechanism, and connect a piezoelectric ceramic group positive electrode sensing wire and a piezoelectric ceramic group negative electrode sensing wire to the piezoelectric ceramic group, connect the piezoelectric ceramic group positive electrode sensing wire and the piezoelectric ceramic group negative electrode sensing wire to a charge amplifier, and set a microscope in front of the workbench to observe the alignment of the ejector pin and the single fiber in the fiber glass slide; Step three, by adjusting the manually adjustable micro-motion platform and observing under the microscope, adjust the ejector pin to align with and press against a single fiber in the fiber glass slide, output a periodic step wave signal generated by a signal generator and a power amplifier to the piezoelectric ceramic group, output the amplified displacement of the ejector pin through the honeycomb amplification mechanism, and record the change in the indication of the charge amplifier during the ejection of a single fiber. According to the relationship calibrated in step one, deduce the change in the internal force during the fiber ejection process.

8. The working method of the honeycomb amplifying fiber ejecting device as claimed in claim 1, characterized in that: Step 1: a pressure sensor is arranged between the workbench and the fiber glass slide, and a microscope is set in front of the workbench to observe the alignment of the ejector pin and the single fiber in the fiber glass slide; Step 2: By adjusting the manually adjustable micro-motion platform and observing the microscope, the ejector pin is adjusted to align with and close to the single fiber in the fiber glass slide, and a periodic step wave signal generated by a signal generator and a power amplifier is output to the piezoelectric ceramic group. The displacement of the ejector pin after amplification is output by the cellular amplification mechanism is recorded, and the change in the indication of the pressure sensor during the process of pushing out the single fiber is recorded, thereby obtaining the change in the internal force during the fiber pushing process.

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