WO2023050599A1 - Traceable sensor fastener and manufacturing method therefor - Google Patents
Traceable sensor fastener and manufacturing method therefor Download PDFInfo
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- WO2023050599A1 WO2023050599A1 PCT/CN2021/139270 CN2021139270W WO2023050599A1 WO 2023050599 A1 WO2023050599 A1 WO 2023050599A1 CN 2021139270 W CN2021139270 W CN 2021139270W WO 2023050599 A1 WO2023050599 A1 WO 2023050599A1
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- 238000004519 manufacturing process Methods 0.000 title abstract description 3
- 230000001681 protective effect Effects 0.000 claims abstract description 25
- 230000010287 polarization Effects 0.000 claims abstract description 17
- 238000002360 preparation method Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 15
- 230000008018 melting Effects 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- 238000009713 electroplating Methods 0.000 claims description 2
- 238000007733 ion plating Methods 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010330 laser marking Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000001755 magnetron sputter deposition Methods 0.000 description 2
- 230000000873 masking effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010329 laser etching Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
- F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/95—Constructional details of connections not covered for in other groups of this subclass with markings, colours, indicators or the like
Definitions
- the invention belongs to the field of fasteners, in particular to a fastener with traceability sensors and a preparation method thereof.
- the senor is mainly combined with the surface of the threaded fastener in the following two ways.
- One way is to paste or weld the sensor to the surface of the threaded fastener as a whole, and the other is to use vacuum coating to deposit and grow each layered structure of the sensor. No matter which method is adopted, it can only be realized by occupying a large amount of surface area on the end surface of the head of the fastener.
- the end face of the fastener head will be marked, and the marking content mainly includes: product model, specification, manufacturer's mark, etc.
- the marking content mainly includes: product model, specification, manufacturer's mark, etc.
- some customers also require the end face of the fastener head to record information such as the factory batch number and serial number of the product. So much content for the sensor and fastening The combination between the parts brings great technical difficulties, which will limit the application range and prospects of sensor fasteners to a certain extent.
- the end faces of the head are often designed with cross grooves, gear grooves, inner hexagons, etc., which will further reduce the surface area of the head end face, resulting in the sensor not being able to connect with the end face of the fastener head. Effective combination.
- the effective diameter of the tail of the conventional bolt is very small and the tail of the fastener is often hidden in the actual use process, which brings difficulties to the actual detection.
- the protective film layer in the three-layer structure (piezoelectric film layer, protective film layer, and polarized layer) of the traditional sensor needs to isolate the polarized layer into two parts that are completely insulated.
- the piezoelectric film layer and the protective film layer are usually processed first, and then the masking substance is adhered on the surface of the protective film layer. After the electrode polarization layer is deposited, the adhered masking substance is removed, and the part is electrolessly polarized.
- Layer deposition in order to achieve the protective film layer and isolate the electric polarization layer into two parts that are completely insulated, forming a loop during the detection process, as shown in Figure 1. This method has problems such as low efficiency and poor quality consistency, which have a great impact on the quality stability and consistency of the sensor.
- the present invention aims to propose a sensor fastener with traceability and a preparation method thereof, by integrally processing and preparing an insulating ring structure and a two-dimensional code pattern on the end face of the fastener head, improving the structure of the insulating ring.
- the efficiency of preparation, quality consistency and stability, and the traceability of fasteners can be realized through the function of QR code.
- a fastener with traceability sensors comprising a fastener body, a piezoelectric film layer, a protective film layer, and an electric polarization layer arranged on the fastener body in sequence from bottom to top, and the electric polarization layer is provided with There are ring grooves and QR codes.
- the method for preparing a fastener with traceability as described above comprises the following steps:
- a piezoelectric film layer and a protective film layer are sequentially prepared on the end face of the fastener body, and an insulating film is covered on the surface of the protective film layer;
- the preparation method of the piezoelectric film layer, the protective film layer, and the electric polarization layer is one of spray coating, electroplating, and ion plating.
- the thickness of the piezoelectric film layer is 5-10 ⁇ m
- the thickness of the protective film layer is 2-5 ⁇ m
- the thickness of the electric polarization layer is 3-8 ⁇ m.
- the cutting method of the insulating film in step (2) is laser melting, and the depth of laser melting is greater than the thickness of the insulating film; preferably, the power of the light source for laser melting is 45W, the frequency is 20KHz, the laser wavelength is 1064nm, and the speed is 15 mm/s.
- the width of the annular membrane is 1-2 mm.
- the method further includes the following steps: performing calibration on the fastener obtained in step (4), obtaining the calibration information of the fastener, and storing the calibration information in the two-dimensional code information.
- the fastener with traceability sensor and its preparation method described in the present invention have the following advantages:
- the fastener described in the present invention can not only quickly and efficiently complete the third-layer loop structure through the integrated processing of the two-dimensional code and the insulating ring structure, realize the function of the sensor, but also save the end face of the head of the traditional fastener
- the process of processing various markings and the recording of a large amount of data information in the life cycle of fasteners in the later period not only improve the efficiency, quality consistency and stability of insulating ring structure preparation, but also realize the reliability of fasteners through the function of two-dimensional codes. Traceability, can quickly and accurately grasp the processing, testing information and service history data of fasteners in service, facilitate on-site assembly and application and deal with various problems, greatly save costs, and have a relatively positive practical use effect.
- Fig. 1 is the structural schematic diagram of preparing sensor in the prior art
- Fig. 2 is the exploded structure schematic diagram of the fastener prepared by the embodiment of the present invention.
- Fig. 3 is a top view structural schematic diagram of a fastener prepared in an embodiment of the present invention.
- connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention based on specific situations.
- the present invention proposes a traceable sensor fastener and its preparation method, which prepares a two-dimensional code pattern on the end face of the fastener head by laser etching and isolates the electric polarization layer into two completely insulated parts Ring structure.
- this method prepares an insulating ring structure by mechanized means, which has high processing efficiency and good quality consistency.
- this method can store various information of fasteners in the two-dimensional code, such as the model and specification of the product. , manufacturer's mark, etc., and at the same time, the monitoring data of the entire life cycle of the fastener can also be stored in the QR code, which has a great practical effect.
- M6 hexagon head threaded fastener 1 requires a sensor to be prepared on the end face of its head to achieve the purpose of pre-tightening force detection.
- the following information needs to be marked on the end face of its head: manufacturer's logo, product model and specification, product batch number and other information. After calculation and evaluation, after the sensor is prepared on the end face of the head, it is no longer possible to carry out the marking processing of the manufacturer's logo, product model and specification, batch number and other information.
- the traceable sensor fastener 1 is prepared according to the following processing flow:
Abstract
A traceable sensor fastener, comprising a fastener body as well as a piezoelectric film layer (2), a protective film layer (3), and an electric polarization layer (4) that are sequentially arranged on the fastener body from bottom to top. The electric polarization layer (4) is provided with an annular groove (5) and a QR code. The integrated processing of the QR code and an insulating annular structure can not only quickly and efficiently complete a third-layer loop structure to achieve the function of a sensor, but also cancel the step of processing various marks on end faces of traditional fastener heads and eliminate the need of recording a large amount of data information in the life cycle of the fastener in later use, such that the efficiency and quality consistency and stability of insulating ring structure preparation is improved, and the traceability of the fastener is realized by means of the function of the QR code, enabling the processing and testing information and service history data of the fastener in service to be easily and accurately obtained, thus facilitating on-site assembly and application and handling of various problems, greatly saving costs, and achieving relatively positive practical use effect. The present application also relates to a method of manufacturing a traceable sensor fastener.
Description
本发明属于紧固件领域，尤其是涉及一种具有可追溯性传感器紧固件及其制备方法。The invention belongs to the field of fasteners, in particular to a fastener with traceability sensors and a preparation method thereof.
目前，通过在外螺纹紧固件上制备传感器，利用传感器激发的超声波信号来测量外螺纹紧固件预紧力的技术具有较好的应用前景。At present, by preparing sensors on externally threaded fasteners, the technology of using ultrasonic signals excited by the sensors to measure the pretightening force of externally threaded fasteners has a good application prospect.
在现有的方法中，传感器主要采用以下两种方式与螺纹紧固件的表面结合在一起。一种采用粘贴或焊接的方式，将片状的传感器整体固定到螺纹紧固件表面，另一种采用真空镀膜的方式，沉积生长传感器的各个分层结构。无论是采用上述何种方式，均会占据紧固件头部端面大量的表面积才能实现。In the existing methods, the sensor is mainly combined with the surface of the threaded fastener in the following two ways. One way is to paste or weld the sensor to the surface of the threaded fastener as a whole, and the other is to use vacuum coating to deposit and grow each layered structure of the sensor. No matter which method is adopted, it can only be realized by occupying a large amount of surface area on the end surface of the head of the fastener.
而对于紧固件而言，为实现紧固件加工制造可追溯性，紧固件头部端面均会进行制标，标记内容主要有：产品的型号、规格、厂家标记等。随着客户对紧固件可追溯性要求越来越严，有些客户同时要求紧固件头部端面记录产品的出厂批次号以及流水号等信息，如此多的制标内容给传感器与紧固件之间的结合带来了较大的技术困难，在一定程度上会限制传感器紧固件的应用范围及前景。For fasteners, in order to realize the traceability of fastener processing and manufacturing, the end face of the fastener head will be marked, and the marking content mainly includes: product model, specification, manufacturer's mark, etc. As customers have increasingly stringent requirements for the traceability of fasteners, some customers also require the end face of the fastener head to record information such as the factory batch number and serial number of the product. So much content for the sensor and fastening The combination between the parts brings great technical difficulties, which will limit the application range and prospects of sensor fasteners to a certain extent.
此外，绝大部分紧固件为了实现装配的目的，头部端面常常会设计十字槽、齿轮槽、内六角等型号，会进一步减少头部端面的表面积，导致传感器无法与紧固件头部端面有效结合。而对于传感器在尾部加工的方案，由于常规螺栓的尾部有效直径非常小且紧固件在实际使用过程中，尾部常常处于隐蔽状态，给实际检测带来了困难。In addition, in order to achieve the purpose of assembly of most fasteners, the end faces of the head are often designed with cross grooves, gear grooves, inner hexagons, etc., which will further reduce the surface area of the head end face, resulting in the sensor not being able to connect with the end face of the fastener head. Effective combination. As for the solution where the sensor is processed at the tail, the effective diameter of the tail of the conventional bolt is very small and the tail of the fastener is often hidden in the actual use process, which brings difficulties to the actual detection.
与此同时，为了实现传感器的功能，传统传感器的三层结构(压电膜层、保护膜层、电极化层)中保护膜层需将电极化层隔离出完全绝缘的两部分。为加工出此结构，通常采用先加工压电膜层、保护膜层，然后通过在保护膜层表面粘附遮蔽物质，电极化层沉积完毕后，将粘附遮蔽物质去除，该部位无电极化层沉积，以达到保护膜层将电极化层隔离成完全绝缘的两部分，在检测过程中形成回路，如图1所示。该方法存在效率低、质量一致性差等问题，对传感器的质量稳定性及一致性具有较大的影响。At the same time, in order to realize the function of the sensor, the protective film layer in the three-layer structure (piezoelectric film layer, protective film layer, and polarized layer) of the traditional sensor needs to isolate the polarized layer into two parts that are completely insulated. In order to process this structure, the piezoelectric film layer and the protective film layer are usually processed first, and then the masking substance is adhered on the surface of the protective film layer. After the electrode polarization layer is deposited, the adhered masking substance is removed, and the part is electrolessly polarized. Layer deposition, in order to achieve the protective film layer and isolate the electric polarization layer into two parts that are completely insulated, forming a loop during the detection process, as shown in Figure 1. This method has problems such as low efficiency and poor quality consistency, which have a great impact on the quality stability and consistency of the sensor.
发明内容Contents of the invention
有鉴于此，本发明旨在提出一种具有可追溯性传感器紧固件及其制备方法，以在紧固件头部端面一体加工制备绝缘环结构及二维码图形的方式，提高绝缘环结构制备的效率及质量一致性、稳定性，通过二维码的功能实现紧固件的可追溯性。In view of this, the present invention aims to propose a sensor fastener with traceability and a preparation method thereof, by integrally processing and preparing an insulating ring structure and a two-dimensional code pattern on the end face of the fastener head, improving the structure of the insulating ring. The efficiency of preparation, quality consistency and stability, and the traceability of fasteners can be realized through the function of QR code.
为达到上述目的，本发明的技术方案是这样实现的：In order to achieve the above object, technical solution of the present invention is achieved in that way:
一种具有可追溯性传感器紧固件，包括紧固件本体、自下而上依次设于紧固件本体上的压电膜层、保护膜层及电极化层，所述电极化层上设有环形槽及二维码。A fastener with traceability sensors, comprising a fastener body, a piezoelectric film layer, a protective film layer, and an electric polarization layer arranged on the fastener body in sequence from bottom to top, and the electric polarization layer is provided with There are ring grooves and QR codes.
如上所述的具有可追溯性传感器紧固件的制备方法，包括以下步骤：The method for preparing a fastener with traceability as described above comprises the following steps:
(1)在紧固件本体端面依次制备压电膜层及保护膜层，在保护膜层表面覆盖绝缘膜；(1) A piezoelectric film layer and a protective film layer are sequentially prepared on the end face of the fastener body, and an insulating film is covered on the surface of the protective film layer;
(2)将绝缘膜切割形成环形膜及二维码膜，去除保护膜层表面除环形膜及二维码膜以外的绝缘膜；(2) cutting the insulating film to form an annular film and a two-dimensional code film, and removing the insulating film on the surface of the protective film layer except the annular film and the two-dimensional code film;
(3)制备电极化层，所述电极化层覆盖保护膜层、环形膜及二维码膜；(3) prepare an electric polarization layer, and the electric polarization layer covers a protective film layer, an annular film and a two-dimensional code film;
(4)去除环形膜及二维码膜，使环形膜及二维码下方的保护膜层暴露 形成环形槽及二维码，得到具有可追溯性传感器紧固件。(4) Remove the annular film and the two-dimensional code film, expose the protective film layer under the annular film and the two-dimensional code to form an annular groove and two-dimensional code, and obtain a traceable sensor fastener.
进一步地，所述压电膜层、保护膜层、电极化层的制备方法为喷涂、电镀、离子镀的一种。Further, the preparation method of the piezoelectric film layer, the protective film layer, and the electric polarization layer is one of spray coating, electroplating, and ion plating.
进一步地，所述压电膜层的厚度为5-10μm，所述保护膜层的厚度为2-5μm，所述电极化层的厚度为3-8μm。Further, the thickness of the piezoelectric film layer is 5-10 μm, the thickness of the protective film layer is 2-5 μm, and the thickness of the electric polarization layer is 3-8 μm.
进一步地，步骤(2)中绝缘膜的切割方法为激光熔融，激光熔融的深度大于绝缘膜的厚度；优选地，激光熔融的光源功率为45W，频率为20KHz，激光波长为1064nm，速度为15毫米/秒。Further, the cutting method of the insulating film in step (2) is laser melting, and the depth of laser melting is greater than the thickness of the insulating film; preferably, the power of the light source for laser melting is 45W, the frequency is 20KHz, the laser wavelength is 1064nm, and the speed is 15 mm/s.
进一步地，所述环形膜的宽度为1-2mm。Further, the width of the annular membrane is 1-2 mm.
进一步地，还包括以下步骤：对步骤(4)得到的紧固件进行标定，得到紧固件的标定信息，将标定信息储存在二维码信息中。Further, the method further includes the following steps: performing calibration on the fastener obtained in step (4), obtaining the calibration information of the fastener, and storing the calibration information in the two-dimensional code information.
相对于现有技术，本发明所述的具有可追溯性传感器紧固件及其制备方法具有以下优势：Compared with the prior art, the fastener with traceability sensor and its preparation method described in the present invention have the following advantages:
本发明所述的紧固件通过二维码及绝缘环形结构的一体化加工，不但可快速、高效地完成第三层回路结构，实现传感器的功能，而且可省去传统紧固件头部端面加工各种标识的工序，以及后期紧固件寿命周期内大量数据信息的记录，不但提高绝缘环结构制备的效率及质量一致性、稳定性，而且通过二维码的功能实现紧固件的可追溯性，可快捷、准确地掌握服役紧固件的加工、检测信息以及服役历史数据，便于现场装配应用以及处理各种问题，大大节省了成本，具有较为积极的实际使用效果。The fastener described in the present invention can not only quickly and efficiently complete the third-layer loop structure through the integrated processing of the two-dimensional code and the insulating ring structure, realize the function of the sensor, but also save the end face of the head of the traditional fastener The process of processing various markings and the recording of a large amount of data information in the life cycle of fasteners in the later period not only improve the efficiency, quality consistency and stability of insulating ring structure preparation, but also realize the reliability of fasteners through the function of two-dimensional codes. Traceability, can quickly and accurately grasp the processing, testing information and service history data of fasteners in service, facilitate on-site assembly and application and deal with various problems, greatly save costs, and have a relatively positive practical use effect.
构成本发明的一部分的附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在 附图中：The drawings constituting a part of the present invention are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:
图1为现有技术中制备传感器的结构示意图；Fig. 1 is the structural schematic diagram of preparing sensor in the prior art;
图2为本发明实施例制备紧固件的***结构示意图；Fig. 2 is the exploded structure schematic diagram of the fastener prepared by the embodiment of the present invention;
图3为本发明实施例制备紧固件的俯视结构示意图。Fig. 3 is a top view structural schematic diagram of a fastener prepared in an embodiment of the present invention.
附图标记说明：Explanation of reference signs:
1、紧固件；2、压电膜层；3、保护膜层；4、电极化层；5、环形膜；6、二维码膜。1. Fasteners; 2. Piezoelectric film layer; 3. Protective film layer; 4. Electropolarized layer; 5. Annular film; 6. Two-dimensional code film.
需要说明的是，在不冲突的情况下，本发明中的实施例及实施例中的特征可以相互组合。It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”等的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, a feature defined as "first", "second", etc. may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可 以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以通过具体情况理解上述术语在本发明中的具体含义。In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention based on specific situations.
本发明提出了一种具有可追溯性传感器紧固件及其制备方法，通过激光刻蚀的方式在紧固件头部端面加工制备二维码图形以及将电极化层隔离出完全绝缘的两部分环形结构，此方法一方面通过机械化手段制备绝缘环形结构，加工效率高、质量一致性好，另一方面此方法可在二维码中储存紧固件的各项信息，如产品的型号、规格、厂家标记等，同时二维码中还可以存储紧固件整个寿命周期的监控数据，具有极大的实际使用效果。The present invention proposes a traceable sensor fastener and its preparation method, which prepares a two-dimensional code pattern on the end face of the fastener head by laser etching and isolates the electric polarization layer into two completely insulated parts Ring structure. On the one hand, this method prepares an insulating ring structure by mechanized means, which has high processing efficiency and good quality consistency. On the other hand, this method can store various information of fasteners in the two-dimensional code, such as the model and specification of the product. , manufacturer's mark, etc., and at the same time, the monitoring data of the entire life cycle of the fastener can also be stored in the QR code, which has a great practical effect.
下面将参考附图并结合实施例来详细说明本发明。The present invention will be described in detail below with reference to the accompanying drawings and examples.
某规格M6六角头螺纹紧固件1要求在其头部端面制备传感器，以实现预紧力检测的目的。需要在其头部端面标记以下信息：制造商标识、产品型号及规格、产品批次号等信息。经测算和评估，在头部端面制备传感器后，无法再进行制造商标识、产品型号及规格、批次号等信息的标识加工。A certain specification of M6 hexagon head threaded fastener 1 requires a sensor to be prepared on the end face of its head to achieve the purpose of pre-tightening force detection. The following information needs to be marked on the end face of its head: manufacturer's logo, product model and specification, product batch number and other information. After calculation and evaluation, after the sensor is prepared on the end face of the head, it is no longer possible to carry out the marking processing of the manufacturer's logo, product model and specification, batch number and other information.
基于以上问题，为实现该型号产品预紧力的检测以及信息的追溯，按以下加工流程制备具有可追溯性传感器紧固件1：Based on the above problems, in order to realize the detection of the pretightening force of this type of product and the traceability of information, the traceable sensor fastener 1 is prepared according to the following processing flow:
(1)通过机械加工方式去除头部端面原标识，并保持头部端面粗糙度≤0.8；(1) Remove the original mark on the end face of the head by mechanical processing, and keep the roughness of the end face of the head ≤0.8;
(2)采用真空磁控溅射的方法在头部端面沉积一层压电膜层2，采用材料为氧化锌，厚度为(6～8)μm，然后在压电膜层2上沉积一层保护膜层3，采用材料为二氧化硅，厚度为(2～3)μm；(2) Deposit a layer of piezoelectric film 2 on the end face of the head by vacuum magnetron sputtering, the material used is zinc oxide, and the thickness is (6-8) μm, and then a layer of The protective film layer 3 is made of silicon dioxide and has a thickness of (2-3) μm;
(3)将厚度为1mm的耐高温绝缘胶粘贴在紧固件1头部端面，确保全部覆盖保护膜层3；(3) Paste the high temperature resistant insulating glue with a thickness of 1 mm on the end face of the head of the fastener 1 to ensure that the protective film layer 3 is completely covered;
(4)在ZK-20-F型号激光制标机编程环形结构，内环直径为5mm，外环直径为7mm，环宽2mm，设定激光光源功率为45W，频率为20KHz，激光波长为1064nm，速度为15毫米/秒，保证激光熔融深度约(2～3)mm，然后通过激光光源在紧固件1头部端面加工出环形膜5，如图2所示；(4) Program the ring structure in the ZK-20-F laser marking machine, the diameter of the inner ring is 5mm, the diameter of the outer ring is 7mm, and the ring width is 2mm. Set the power of the laser light source to 45W, the frequency to 20KHz, and the laser wavelength to 1064nm , the speed is 15 mm/s, and the laser melting depth is guaranteed to be about (2-3) mm, and then the annular film 5 is processed on the end face of the head of the fastener 1 through the laser light source, as shown in Figure 2;
(5)在ZK-20-F型号激光制标机编程二维码结构，设定激光制标机功率为设定激光光源功率为45W，频率为20KHz，激光波长为1064nm，速度为15毫米/秒，在除绝缘环以外的区域制备二维码膜6，深度为(8～10)μm，去除环形膜5及二维码膜6以外的绝缘胶，如图3所示；(5) Program the two-dimensional code structure in the ZK-20-F laser marking machine, set the power of the laser marking machine to set the power of the laser light source to 45W, the frequency to 20KHz, the laser wavelength to 1064nm, and the speed to 15mm/ second, prepare a two-dimensional code film 6 in a region other than the insulating ring, with a depth of (8-10) μm, and remove the insulating glue other than the annular film 5 and the two-dimensional code film 6, as shown in Figure 3;
(6)采用真空磁控溅射的方法在紧固件1头部端面制备一层电极化层4，采用材料为钛，厚度为(3～5)μm；(6) Prepare a layer of electric polarization layer 4 on the end surface of the head of the fastener 1 by vacuum magnetron sputtering, the material used is titanium, and the thickness is (3-5) μm;
(7)撕去环形膜5和二维码膜6，暴露出环形膜5和二维码膜6；(7) Tear off the annular film 5 and the two-dimensional code film 6, exposing the annular film 5 and the two-dimensional code film 6;
(8)对该紧固件1进行标定，得出声时差和预紧力的关系曲线，通过二维码技术将关系曲线存储在二维码信息中；(8) Calibrate the fastener 1 to obtain the relational curve of the acoustic time difference and the pre-tightening force, and store the relational curve in the two-dimensional code information by two-dimensional code technology;
(9)该紧固件1在实际装配过程中，根据要求记录紧固件1装配时的预紧力数据、拆装次数等全寿命周期内的信息，并将这些信息与二维码关联存储。(9) During the actual assembly process of the fastener 1, according to the requirements, record the information in the whole life cycle of the fastener 1, such as the pretightening force data and the number of times of disassembly and assembly, and store these information in association with the two-dimensional code .
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.
Claims (7)
- 一种具有可追溯性传感器紧固件，其特征在于：包括紧固件本体、自下而上依次设于紧固件本体上的压电膜层、保护膜层及电极化层，所述电极化层上设有环形槽及二维码。A sensor fastener with traceability is characterized in that: it includes a fastener body, a piezoelectric film layer, a protective film layer, and an electric polarization layer arranged on the fastener body sequentially from bottom to top, and the electrodes The chemical layer is provided with an annular groove and a two-dimensional code.
- 根据权利要求1所述的具有可追溯性传感器紧固件的制备方法，其特征在于，包括以下步骤：The preparation method with traceability sensor fastener according to claim 1, is characterized in that, comprises the following steps:(1)在紧固件本体端面依次制备压电膜层及保护膜层，在保护膜层表面覆盖绝缘膜；(1) A piezoelectric film layer and a protective film layer are sequentially prepared on the end face of the fastener body, and an insulating film is covered on the surface of the protective film layer;(2)将绝缘膜切割形成环形膜及二维码膜，去除保护膜层表面除环形膜及二维码膜以外的绝缘膜；(2) cutting the insulating film to form an annular film and a two-dimensional code film, and removing the insulating film on the surface of the protective film layer except the annular film and the two-dimensional code film;(3)制备电极化层，所述电极化层覆盖保护膜层、环形膜及二维码膜；(3) prepare an electric polarization layer, and the electric polarization layer covers a protective film layer, an annular film and a two-dimensional code film;(4)去除环形膜及二维码膜，使环形膜及二维码下方的保护膜层暴露形成环形槽及二维码，得到具有可追溯性传感器紧固件。(4) removing the annular film and the two-dimensional code film, exposing the protective film layer below the annular film and the two-dimensional code to form an annular groove and two-dimensional code, and obtaining a traceable sensor fastener.
- 根据权利要求2所述的制备方法，其特征在于：所述压电膜层、保护膜层、电极化层的制备方法为喷涂、电镀、离子镀的一种。The preparation method according to claim 2, characterized in that: the preparation method of the piezoelectric film layer, the protective film layer, and the electric polarization layer is one of spray coating, electroplating, and ion plating.
- 根据权利要求2所述的制备方法，其特征在于：所述压电膜层的厚度为5-10μm，所述保护膜层的厚度为2-5μm，所述电极化层的厚度为3-8μm。The preparation method according to claim 2, characterized in that: the thickness of the piezoelectric film layer is 5-10 μm, the thickness of the protective film layer is 2-5 μm, and the thickness of the electric polarization layer is 3-8 μm .
- 根据权利要求2所述的制备方法，其特征在于：步骤(2)中绝缘膜的切割方法为激光熔融，激光熔融的深度大于绝缘膜的厚度；优选地，激光熔融的光源功率为45W，频率为20KHz，激光波长为1064nm，速度为15毫米/秒。The preparation method according to claim 2, characterized in that: the cutting method of the insulating film in step (2) is laser melting, and the depth of laser melting is greater than the thickness of the insulating film; preferably, the power of the light source for laser melting is 45W, and the frequency It is 20KHz, the laser wavelength is 1064nm, and the speed is 15 mm/s.
- 根据权利要求2所述的制备方法，其特征在于：所述环形膜的宽度为1-2mm。The preparation method according to claim 2, characterized in that: the width of the annular film is 1-2 mm.
- 根据权利要求2所述的制备方法，其特征在于，还包括以下步骤：对 步骤(4)得到的紧固件进行标定，得到紧固件的标定信息，将标定信息储存在二维码信息中。The preparation method according to claim 2, further comprising the steps of: calibrating the fastener obtained in step (4), obtaining the calibration information of the fastener, and storing the calibration information in the two-dimensional code information .
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