CN112556630A - Intelligent high-precision measuring device for guaranteeing micro-deformation of load test by fastener - Google Patents

Intelligent high-precision measuring device for guaranteeing micro-deformation of load test by fastener Download PDF

Info

Publication number
CN112556630A
CN112556630A CN202011318148.1A CN202011318148A CN112556630A CN 112556630 A CN112556630 A CN 112556630A CN 202011318148 A CN202011318148 A CN 202011318148A CN 112556630 A CN112556630 A CN 112556630A
Authority
CN
China
Prior art keywords
fastener
micrometer
deformation
measuring
measured
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011318148.1A
Other languages
Chinese (zh)
Inventor
马永其
严良文
李志霞
雷万庆
杨莉
李金梅
齐文宽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lanzhou Ls Testing Technology Co ltd
University of Shanghai for Science and Technology
Original Assignee
Lanzhou Ls Testing Technology Co ltd
University of Shanghai for Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lanzhou Ls Testing Technology Co ltd, University of Shanghai for Science and Technology filed Critical Lanzhou Ls Testing Technology Co ltd
Priority to CN202011318148.1A priority Critical patent/CN112556630A/en
Publication of CN112556630A publication Critical patent/CN112556630A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention discloses an intelligent high-precision measuring device for guaranteeing micro-deformation of a load test by a fastener, which comprises a PC (personal computer), a motion control system, a precision measuring system and a mechanical device, wherein the PC is connected with the motion control system; and precisely measuring the micro-deformation of the fastener to be measured in a load test by using an application software system. The device of the invention improves the precision of the measuring system from two ways of measuring principle and measuring core components, realizes online timely measuring and tracking of sample deformation under the condition that the state of the tested sample is kept unchanged, reduces measuring errors, transmits the measuring result to a computer system in real time, saves the measuring result through developed measuring control system application software, obtains measuring process data, intelligently judges whether the tested piece is qualified under a given judgment standard, realizes automatic and intelligent judgment of the measuring process, and obtains stable, reliable and accurate residual micro-deformation.

Description

Intelligent high-precision measuring device for guaranteeing micro-deformation of load test by fastener
Technical Field
The invention relates to an intelligent high-precision fastener guaranteed load test micro-deformation measuring device which is applied to the precision measurement of the fastener in the guaranteed load test micro-deformation, can measure the residual micro-deformation after the loading and unloading of a bolt, the stretching of a test rod piece and the residual micro-deformation after the unloading, can realize the automation and the intellectualization of the measuring process, and can obtain the precise residual micro-deformation.
Background
The fastener guarantee load test is an important index for evaluating the original size retention capacity of the fastener under certain external force, and the retention capacity of the original size of the fastener under the external force is an important factor of the service performance and the service life of the fastener, so the fastener guarantee load test is an important index for detecting the fastener before leaving factories and being put into use, and the requirement on the accuracy of the parameter detection result is self-evident. The international standard ISO898-1-2013 and the Chinese national standard both provide acceptance requirements for fastener guarantee loads. Provision of 'fastener proof load test' in clause 9.6 of 'fastener mechanical performance bolt, screw and stud' of Chinese national standard GB/T3098.1-2010 [ < fastener mechanical performance >: the permanent elongation of the fastener resulting from the proof load test was measured by performing the specified proof load test, loading for 15 s. Evaluation criteria: the permanent elongation of the fastener is less than or equal to 12.5 mu m and qualified, and the permanent elongation of the fastener is more than 12.5 mu m and unqualified. In which a specific feasible test procedure is given in the standard ISO898-1 and how the test is carried out is not given in the chinese standard. Currently, China basically adopts the method given by ISO898-1-2013 to carry out the fastener guarantee load test. The measuring tools used in the prior art are all universal measuring tools, such as a micrometer and a vernier caliper, and because the measuring tools are not specially designed for the test, the working requirements for guaranteeing the length change of the load test measuring bolt cannot be well met. The two measurement states of the test piece before and after loading are difficult to keep consistent, and the measurement error is increased. Because the fastener specification is many, length range is wide, the weight is inconsistent, is very important to how to ensure the precision, repeatability and the stability of test in the measurement process. In addition, manual data cannot be stored in a computer, so that magnitude tracing is difficult to realize and quality management requirements are not met. In order to solve the above problems, it is necessary to consider the measuring tool and the measuring system, and a device meeting the test requirements needs to be developed to ensure that the fastener can guarantee the precision measurement of the micro-deformation of the load test, and realize the automation and the intellectualization of the measuring process to obtain the precise residual micro-deformation.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to overcome the defects in the prior art and provide an intelligent high-precision measuring device for ensuring the micro-deformation of a load test by a fastener, the precision of a measuring system is improved by two ways of measuring principle and measuring core components, the deformation of a sample is measured and tracked on line in time under the condition that the state of the tested sample is not changed, the measuring error is reduced, the measuring result is transmitted to a computer system in real time, the measuring result is stored by developed measuring control system application software to obtain measuring process data, whether the tested sample is qualified or not is intelligently judged under a given judgment standard, the automatic and intelligent judgment of the measuring process is realized, and the stable, reliable and precise residual micro-deformation is obtained.
In order to achieve the purpose of the invention, the invention adopts the following technical scheme:
an intelligent high-precision measuring device for guaranteeing micro-deformation of a load test by a fastener comprises a PC (personal computer), a motion control system, a precision measuring system and a mechanical device; precisely measuring the micro-deformation of the fastener to be measured in a guaranteed load test by using an application software system;
the mechanical device comprises a base, a supporting plate, an upright post, a sliding rail, a micrometer supporting frame and a servo motor; the method comprises the steps of fixedly installing an upright column on a base, vertically installing a sliding rail on the base through the upright column, installing a supporting plate on the base, enabling a sliding block part of the sliding rail to slide along the sliding rail in a lifting displacement mode, fixedly connecting a micrometer supporting frame with the sliding block part, forming a measuring working space between the lower surface of the micrometer supporting frame and the upper surface of the supporting plate to form a clamping device, vertically installing two ends of a fastener to be measured between the micrometer supporting frame and the supporting plate in a contact mode to measure, installing a micrometer on the sliding block part to measure the length of the fastener to be measured in real time, driving the sliding block part by using a servo motor to drive the micrometer supporting frame to move, and respectively controlling a servo motor and a precision measuring system of a motion control system by a PC to measure the fastener to be measured.
Preferably, the motion control system comprises a motion control board, a servo driver, a servo motor, a limit switch and a terminal board; the motion control board sends a control signal to the terminal board according to the input signal, the terminal board sends the motion control signal to the servo driver, and the servo driver drives the servo motor to operate; the terminal board sends the limit signal limit switch, so that the start and stop of the servo motor are controlled, and a motion control closed-loop process system is formed.
Preferably, the precision measurement system comprises a micrometer, a digital display and a data communication device, wherein the micrometer comprises a linear micrometer and a micrometer counter, the micrometer counter is in data communication with a PC through the data communication device, the micrometer counter is in signal connection with the linear micrometer, the linear micrometer is in signal connection with a control part of the mechanical device, and when the micrometer support frame reaches a measurement position, the linear micrometer can perform positioning measurement on the fastener to be measured.
The application software system comprises a human-computer interface, a data storage module, a data processing module and an intelligent analysis module, and is used for collecting and analyzing the measurement data of the fastener to be tested.
Preferably, when the fastener is used for ensuring the micro-deformation measurement of the load test, the motion control system is powered on, so that the servo motor is in a standby state; after the precision measurement system is powered on, the micrometer is in a standby state; according to the length of the fastener to be tested, after the preset length is input through the PC, the servo motor is started, so that the sliding block part drives the micrometer support frame to move along the sliding rail, and the micrometer support frame stops when reaching the specified position; the fastener to be tested is arranged at a designated position between a micrometer support frame and a support plate of the mechanical device, and is automatically positioned and clamped and fixed under the action of a spring clamping piece of the micrometer support frame; clicking a measuring button on an operation interface of a PC (personal computer) to obtain the length of a fastener to be measured before deformation, then taking the fastener to be measured down from a clamping device, carrying out deformation treatment, loading for not less than 15s under corresponding load, then taking back the fastener to be measured after deformation treatment, reinstalling the fastener to be measured at a specified position of a mechanical device, and automatically positioning and clamping and fixing under the action of a spring clamping piece of a micrometer support; clicking the measuring button again on the operation interface of the PC to obtain the deformed length of the fastener to be measured; then comparing the length after deformation with the length before deformation and calculating the length difference to obtain the residual deformation of the fastener to be measured; and comparing the residual deformation obtained by measurement with a preset value, and intelligently giving a judgment conclusion whether the fastener to be measured is qualified.
Compared with the prior art, the invention has the following obvious and prominent substantive characteristics and remarkable advantages:
1. the measuring device of the invention obtains a high-precision test value on the premise of keeping the consistency of the two measurement bases; the application software system is convenient for user operation by means of a human-computer interface (HMI), the measured result is stored in a hard disk, the measured result is intelligently analyzed by data processing and setting judgment standards, and whether the test piece is qualified or not is automatically judged;
2. the motion control system adopts a motion control panel, a servo driver, a servo motor, a limit switch and control software to ensure stepless free adjustment of the position of the micrometer seat;
3. the precision measurement system selects a micrometer with the resolution of 0.1 mu m, combines a digital display instrument and data communication to realize the precision measurement of the test piece, and sends the measurement result to application software to realize the storage and the query;
4. the mechanical device part of the invention can position the position of the micrometer seat through HMI setting according to the length of the tested piece, thereby enlarging the size range of the tested piece and leading the tested piece to have more flexibility and high efficiency.
Drawings
In order to illustrate embodiments of the present invention or solutions of the prior art more clearly, the drawings that are needed in the description of the embodiments or solutions of the prior art will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
FIG. 1 is a schematic diagram of an intelligent high-precision measuring device for guaranteeing micro-deformation of a load test by using a fastener.
Fig. 2 is a schematic diagram of the motion control system of the present invention.
FIG. 3 is a schematic diagram of a precision measurement system of the present invention.
Fig. 4 is a schematic view of the mechanism of the present invention.
Fig. 5 is a schematic diagram of the device principle of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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.
The above-described scheme is further illustrated below with reference to specific embodiments, which are detailed below:
the first embodiment is as follows:
in the embodiment, referring to fig. 1 and 4, an intelligent high-precision measuring device for a fastener to guarantee micro-deformation in a load test comprises a PC 1, a motion control system 2, a precision measurement system 3 and a mechanical device 4; precisely measuring the micro-deformation of the fastener 18 to be measured in a load test by using an application software system; the mechanical device 4 comprises a base 13, a supporting plate 14, a stand column 15, a sliding rail 16, a micrometer 20, a micrometer support frame 19 and a servo motor 8; the upright post 15 is fixedly arranged on the base 13, the slide rail 16 is vertically arranged on the base 13 through the upright post 15, a supporting plate 14 is arranged on a base 13, a sliding block part of a sliding rail 16 is lifted and displaced to slide along the sliding rail 16, a micrometer supporting frame 19 is fixedly connected with the sliding block part, a measuring working space is formed between the lower surface of the micrometer supporting frame 19 and the upper surface of the supporting plate 14 to form a clamping device, two ends of a fastener 18 to be measured are vertically arranged between the micrometer supporting frame 19 and the supporting plate 14 in a contact mode to be measured, a micrometer 20 is also arranged on the sliding block part, the length of the fastener 18 to be measured is measured in real time, the sliding block part is driven by the servo motor 8, thereby driving the micrometer supporting frame 19 to move, and the PC 1 respectively controls the servo motor 8 of the motion control system 2 and the precision measurement system 3 to measure the fastener 18 to be measured.
The intelligent high-precision measuring device for guaranteeing the micro-deformation of the load test by the fastener of the embodiment is used for positioning the position of the micrometer support frame, namely the position of the micrometer seat, according to the length of the tested piece through the HMI setting of the PC, so that the size range of the tested piece is expanded, and the intelligent high-precision measuring device has more flexibility and high efficiency. The device realizes online timely measurement and tracking of the deformation of the sample under the condition that the state of the tested sample is kept unchanged, reduces the measurement error, and transmits the measurement result to the computer system in real time.
Example two:
this embodiment is substantially the same as the first embodiment, and is characterized in that:
in the present embodiment, referring to fig. 1 to 4, the motion control system 2 includes a motion control board 5, a servo driver 7, a servo motor 8, a limit switch 9, and a terminal board 6; the motion control board 5 sends a control signal to the terminal board 6 according to the input signal, the terminal board 6 sends the motion control signal to the servo driver 7, and the servo driver 7 drives the servo motor 8 to run; the terminal board 6 sends a limit signal limit switch 9, so that the start and stop of the servo motor 8 are controlled, and a motion control closed-loop process system is formed.
The precision measurement system 3 comprises a micrometer 20, a digital display and a data communication device, wherein the micrometer 20 comprises a linear micrometer 12 and a micrometer counter 11, the micrometer counter 11 is in data communication with the PC 1 through the data communication device, the micrometer counter 11 is in signal connection with the linear micrometer 12, the linear micrometer 12 is in signal connection with a control part of the mechanical device 4, and when the micrometer support frame 19 reaches a measurement position, the linear micrometer 12 is used for positioning and measuring the fastener 18 to be measured.
The application software system comprises a human-computer interface, a data storage module, a data processing module and an intelligent analysis module, and is used for collecting and analyzing the measurement data of the fastener 18 to be measured.
The device of the embodiment obtains a test value with high accuracy on the premise of keeping the consistency of two measurement bases. The motion control system of the device of the embodiment adopts a motion control board, a servo driver, a servo motor, a limit switch and control software to ensure stepless free adjustment of the position of the micrometer seat. The precision measurement system of the device of the embodiment selects a micrometer with the resolution of 0.1 mu m, combines a digital display instrument and data communication to realize the precision measurement of the test piece, and sends the measurement result to application software to realize the storage and the query. In the embodiment, the measurement result is stored through the application software of the measurement control system, the measurement process data is obtained, whether the tested piece is qualified or not is intelligently judged under the given judgment standard, the automatic and intelligent judgment of the measurement process is realized, and the stable, reliable and accurate residual micro-deformation is obtained.
Example three:
this embodiment is substantially the same as the above embodiment, and is characterized in that:
in this embodiment, referring to fig. 5, the measurement principle of the device system of this embodiment is as follows: the length 21 before the specimen is stretched is the initial length LCSA stretched length 22 of LCY. The difference between the two measurements is the test value delta:
according to the error theory: micrometer measurement value LSY、LSSMeasurement error deltaZMeasuring environment deltaHPerpendicularity delta to bolt placementCInfluence measurement results:
LCY＝LSY+δZ+δH+δC
LCS＝LSS+δZ+δH+δC
the test values are relative values Δ:
Δ＝LCS-LCY
＝(LSS+δZ+δH+δC)-(LSY+δZ+δH+δC)
＝LSS-LSY
the intelligent high-precision measuring device for the fastener to guarantee the micro-deformation amount of the load test measures and evaluates the stretched fastener to be measured, and the operation flow is as follows:
a. powering on the motion control system 2 to enable the servo motor 8 to be in a standby state;
b. after the precision measurement system 3 is powered on, the micrometer 20 is in a standby state;
c. according to the length of the fastener 18 to be measured, after the preset length is input through the PC 1, the servo motor 8 is started, so that the sliding block part drives the micrometer support frame 19 to move along the sliding rail 16, and the operation is stopped when the sliding block part reaches the specified position; the fastener 18 to be tested is arranged at a designated position between a micrometer supporting frame 19 and a supporting plate 14 of the mechanical device 4, and is automatically positioned and clamped and fixed under the action of a spring clamping piece of the micrometer supporting frame 19; clicking a measuring button on an operation interface of the PC 1 to obtain the length of the fastener 18 to be measured before deformation, then taking the fastener 18 to be measured down from the clamping device, stretching, loading for 15s under corresponding load, then taking back the stretched fastener 18 to be measured to be mounted at the specified position of the mechanical device 4 again, and automatically positioning and clamping and fixing under the action of a spring clamping piece of a micrometer support frame 19; clicking the measuring button again on the operation interface of the PC 1 to obtain the stretched length of the fastener 18 to be measured; then comparing the stretched length with the length before stretching, and subtracting the original length from the stretched length to obtain the residual deformation of the fastener 18 to be measured; and comparing the residual deformation obtained by measurement with a preset value, and intelligently giving a judgment conclusion whether the fastener 18 to be tested is qualified or not. The data recording in the whole process is completed by software, so that the accuracy of the data is ensured.
The method improves the precision of the measuring system from a measuring principle and a measuring core component, realizes online timely measurement and tracking of sample deformation under the condition that the state of a tested sample is kept unchanged, reduces measuring errors, transmits the measuring result to a computer system in real time, stores the measuring result through application software of a measurement control system, obtains measuring process data, intelligently judges whether the tested sample is qualified or not under a given judgment standard, realizes automatic and intelligent judgment of the measuring process, and obtains stable, reliable and accurate residual micro-deformation.
The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the embodiments, and various changes and modifications can be made according to the purpose of the invention, and any changes, modifications, substitutions, combinations or simplifications made according to the spirit and principle of the technical solution of the present invention shall be equivalent substitutions, as long as the purpose of the present invention is met, and the present invention shall fall within the protection scope of the present invention without departing from the technical principle and inventive concept of the present invention.

Claims (5)

1.一种紧固件保证载荷试验微变形量的智能高精度测量装置，其特征在于：包括PC机(1)、运动控制系统(2)、精密测量系统(3)和机械装置(4)；利用应用软件系统对待测紧固件(18)在保证载荷试验的微变形量进行精密测量；1. An intelligent high-precision measuring device for securing the micro-deformation amount of a load test of a fastener, characterized in that: comprising a PC (1), a motion control system (2), a precision measuring system (3) and a mechanical device (4) ;Using the application software system to precisely measure the micro-deformation of the fastener to be tested (18) during the guaranteed load test; 所述机械装置(4)包括底座(13)、支撑板(14)、立柱(15)、滑轨(16)、测微计(20)、测微计支持架(19)、伺服电机(8)；将立柱(15)固定安装在底座(13)上，通过立柱(15)将滑轨(16)垂直安装在底座(13)上，在底座(13)上安装支撑板(14)，在滑轨(16)的滑块部分沿着滑轨(16)进行升降位移滑动，测微计支持架(19)与滑块部分固定连接，测微计支持架(19)的下表面和支撑板(14)的上表面之间形成测量工作空间，构成夹持装置，将待测紧固件(18)的两端接触式垂直安装在测微计支持架(19)和支撑板(14)之间进行测量，在滑块部分还安装测微计(20)，实时测量待测紧固件(18)的长度，利用伺服电机(8)驱动滑块部分，从而带动测微计支持架(19)运动，由PC机(1)分别控制运动控制系统(2)的伺服电机(8)和精密测量系统(3)，对待测紧固件(18)进行测量。The mechanical device (4) includes a base (13), a support plate (14), a column (15), a slide rail (16), a micrometer (20), a micrometer support frame (19), and a servo motor (8) ); fix the column (15) on the base (13), vertically install the slide rail (16) on the base (13) through the column (15), install the support plate (14) on the base (13), The slider part of the slide rail (16) is moved up and down along the slide rail (16), the micrometer support frame (19) is fixedly connected with the slider part, and the lower surface of the micrometer support frame (19) and the support plate A measurement working space is formed between the upper surfaces of the (14), forming a clamping device, and the two ends of the fastener to be measured (18) are vertically installed between the micrometer support frame (19) and the support plate (14) by contact type. During the measurement, a micrometer (20) is also installed on the slider part to measure the length of the fastener (18) to be measured in real time, and the slider part is driven by the servo motor (8), thereby driving the micrometer support frame (19). ) movement, the PC machine (1) respectively controls the servo motor (8) and the precision measuring system (3) of the motion control system (2) to measure the fastener to be measured (18). 2.根据权利要求1所述紧固件保证载荷试验微变形量的智能高精度测量装置，其特征在于：运动控制系统(2)包括运动控制板(5)、伺服驱动器(7)、伺服电机(8)、限位开关(9)和端子板(6)；所述运动控制板(5)根据输入信号向端子板(6)发送控制信号，端子板(6)将运动控制信号发送到伺服驱动器(7)，由伺服驱动器(7)驱动伺服电机(8)运转；端子板(6)将限位信号限位开关(9)发送，从而控制伺服电机(8)的启停，形成运动控制的闭环过程系统。2. The intelligent high-precision measuring device for securing the micro-deformation of the fastener load test according to claim 1, wherein the motion control system (2) comprises a motion control board (5), a servo driver (7), a servo motor (8), a limit switch (9) and a terminal board (6); the motion control board (5) sends a control signal to the terminal board (6) according to the input signal, and the terminal board (6) sends the motion control signal to the servo The driver (7) is driven by the servo driver (7) to drive the servo motor (8) to run; the terminal board (6) sends the limit signal to the limit switch (9), thereby controlling the start and stop of the servo motor (8) to form motion control closed-loop process system. 3.根据权利要求1所述紧固件保证载荷试验微变形量的智能高精度测量装置，其特征在于：精密测量系统(3)包括测微计(20)、数显仪和数据通讯装置，所述测微计(20)包括线性测微计(12)和测微仪计数器(11)，所述测微仪计数器(11)通过数据通讯装置与PC机(1)进行数据通信，测微仪计数器(11)与线性测微计(12)进行信号连接，所述线性测微计(12)与机械装置(4)的控制部分进行信号连接，当测微计支持架(19)到达测量位置时，线性测微计(12)即对待测紧固件(18)进行定位测量。3. The intelligent high-precision measuring device for the guaranteed load test micro-deformation of the fastener according to claim 1, is characterized in that: the precision measuring system (3) comprises a micrometer (20), a digital display instrument and a data communication device, The micrometer (20) includes a linear micrometer (12) and a micrometer counter (11), the micrometer counter (11) performs data communication with the PC (1) through a data communication device, and the micrometer The instrument counter (11) is signal-connected with the linear micrometer (12), and the linear micrometer (12) is signal-connected with the control part of the mechanical device (4). When the micrometer support (19) reaches the measurement When in position, the linear micrometer (12) measures the positioning of the fastener to be measured (18). 4.根据权利要求1所述紧固件保证载荷试验微变形量的智能高精度测量装置，其特征在于：应用软件系统包括人机接口界面、数据保存模块、数据处理模块和智能分析模块，对对待测紧固件(18)的测量数据进行采集和分析。4. The intelligent high-precision measuring device for the guaranteed load test micro-deformation of the fastener according to claim 1, is characterized in that: the application software system comprises a human-machine interface interface, a data storage module, a data processing module and an intelligent analysis module, and the The measurement data of the fastener to be tested (18) is collected and analyzed. 5.根据权利要求1所述紧固件保证载荷试验微变形量的智能高精度测量装置，其特征在于：进行紧固件保证载荷试验微变形量测量时，将运动控制系统(2)上电，使伺服电机(8)处于待用状态；将精密测量系统(3)上电后，使测微计(20)处于待用状态；根据待测紧固件(18)的长度，通过PC机(1)输入该预设长度后，启动伺服电机(8)，使滑块部分沿着滑轨(16)带动测微计支持架(19)运动，当到达指定的位置后停止；将待测紧固件(18)安装在机械装置(4)的测微计支持架(19)和支撑板(14)之间指定位置，在测微计支持架(19)的弹簧卡件的作用下自动定位并卡紧固定；在PC机(1)的操作界面上点击测量按钮，获得待测紧固件(18)的变形前长度，然后将待测紧固件(18)从夹持装置上取下，进行变形处理，在相应的载荷下加载不少于15s，然后取回变形处理后的待测紧固件(18)重新安装在机械装置(4)的指定位置，在测微计支持架(19)的弹簧卡件的作用下自动定位并卡紧固定；在PC机(1)的操作界面上再次点击测量按钮，获得待测紧固件(18)的变形后长度；然后将变形后的长度与变形前长度进行对比和长度差计算，即获得待测紧固件(18)残余变形量；将测量获得的残余变形量与预设值进行比较，智能给出待测紧固件(18)是否合格的评判结论。5. The intelligent high-precision measuring device for the micro-deformation of the guaranteed load test of the fastener according to claim 1 is characterized in that: when the micro-deformation of the guaranteed load test of the fastener is measured, the motion control system (2) is powered on , so that the servo motor (8) is in a standby state; after the precision measuring system (3) is powered on, the micrometer (20) is in a standby state; according to the length of the fastener (18) to be measured, through the PC (1) After inputting the preset length, start the servo motor (8), so that the slider part drives the micrometer support frame (19) along the slide rail (16) to move, and stops when it reaches the designated position; The fastener (18) is installed at the specified position between the micrometer support frame (19) of the mechanical device (4) and the support plate (14), and automatically under the action of the spring clip of the micrometer support frame (19) Position and fasten; click the measurement button on the operation interface of the PC (1) to obtain the pre-deformation length of the fastener (18) to be measured, and then take the fastener (18) to be measured from the clamping device Then, carry out the deformation treatment, load the corresponding load for not less than 15s, and then retrieve the deformed fastener (18) to be tested and re-install it at the designated position of the mechanical device (4), on the micrometer support frame Under the action of the spring clip of (19), it is automatically positioned and clamped; click the measurement button again on the operation interface of the PC (1) to obtain the deformed length of the fastener (18) to be measured; Compare and calculate the length difference between the measured length and the length before deformation, that is, obtain the residual deformation of the fastener to be measured (18); compare the measured residual deformation with the preset value, and intelligently give the fastener to be measured ( 18) Judgment conclusion of eligibility.
CN202011318148.1A 2020-11-23 2020-11-23 Intelligent high-precision measuring device for guaranteeing micro-deformation of load test by fastener Pending CN112556630A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011318148.1A CN112556630A (en) 2020-11-23 2020-11-23 Intelligent high-precision measuring device for guaranteeing micro-deformation of load test by fastener

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011318148.1A CN112556630A (en) 2020-11-23 2020-11-23 Intelligent high-precision measuring device for guaranteeing micro-deformation of load test by fastener

Publications (1)

Publication Number Publication Date
CN112556630A true CN112556630A (en) 2021-03-26

Family

ID=75044687

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011318148.1A Pending CN112556630A (en) 2020-11-23 2020-11-23 Intelligent high-precision measuring device for guaranteeing micro-deformation of load test by fastener

Country Status (1)

Country Link
CN (1) CN112556630A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113175905A (en) * 2021-04-29 2021-07-27 浙江陀曼云计算有限公司 Micrometer parameter self-adaptive obtaining method and system based on time sequence data fluctuation
CN115266068A (en) * 2022-08-11 2022-11-01 内蒙金属材料研究所 High-precision fastener guarantee load measuring system and method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2777529Y (en) * 2005-02-04 2006-05-03 株洲时代新材料科技股份有限公司 Automatic measuring test data acquiring device for small deforming of elastic element
CN202079561U (en) * 2011-02-24 2011-12-21 深圳商巨工业设备有限公司 Bolt heading and bolt height detecting workbench for automobile instrument panel
CN103575228A (en) * 2013-11-13 2014-02-12 武钢集团昆明钢铁股份有限公司 Device for measuring residual deformation of bolt after proof load test
CN203772184U (en) * 2014-04-09 2014-08-13 南京汽车集团有限公司 Special device for measuring length of bolt in proof load test
CN107121278A (en) * 2017-07-10 2017-09-01 内蒙金属材料研究所 A kind of test device and method of testing for ensureing load test for fastener
CN107941117A (en) * 2017-11-21 2018-04-20 兰州兰石检测技术有限公司 Fastener ensures the micro linear change measuring device of load test
CN211602736U (en) * 2019-12-27 2020-09-29 吉林省三度试验设备有限公司 High-temperature creep testing machine for micro sample

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2777529Y (en) * 2005-02-04 2006-05-03 株洲时代新材料科技股份有限公司 Automatic measuring test data acquiring device for small deforming of elastic element
CN202079561U (en) * 2011-02-24 2011-12-21 深圳商巨工业设备有限公司 Bolt heading and bolt height detecting workbench for automobile instrument panel
CN103575228A (en) * 2013-11-13 2014-02-12 武钢集团昆明钢铁股份有限公司 Device for measuring residual deformation of bolt after proof load test
CN203772184U (en) * 2014-04-09 2014-08-13 南京汽车集团有限公司 Special device for measuring length of bolt in proof load test
CN107121278A (en) * 2017-07-10 2017-09-01 内蒙金属材料研究所 A kind of test device and method of testing for ensureing load test for fastener
CN107941117A (en) * 2017-11-21 2018-04-20 兰州兰石检测技术有限公司 Fastener ensures the micro linear change measuring device of load test
CN211602736U (en) * 2019-12-27 2020-09-29 吉林省三度试验设备有限公司 High-temperature creep testing machine for micro sample

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113175905A (en) * 2021-04-29 2021-07-27 浙江陀曼云计算有限公司 Micrometer parameter self-adaptive obtaining method and system based on time sequence data fluctuation
CN113175905B (en) * 2021-04-29 2023-03-10 浙江陀曼云计算有限公司 Micrometer parameter self-adaptive obtaining method and system based on time sequence data fluctuation
CN115266068A (en) * 2022-08-11 2022-11-01 内蒙金属材料研究所 High-precision fastener guarantee load measuring system and method

Similar Documents

Publication Publication Date Title
CN106370142A (en) Wide range displacement sensor calibrating device and calibrating method
CN112556630A (en) Intelligent high-precision measuring device for guaranteeing micro-deformation of load test by fastener
CN118817288B (en) A suction nozzle pressure testing device and method
CN206740383U (en) A kind of fatigue strength tester
CN111336941A (en) Automatic calibrator for extensometer
CN106644715B (en) A portable scratch-in test system
CN204514280U (en) A kind of contactless sample surface profiles proving installation
CN215677943U (en) Rockwell hardness tester based on indentation depth
CN213842514U (en) Dynamic performance testing device for multi-dimensional force sensor
CN110726632B (en) A fully automatic rebound tester
CN218211176U (en) A flatness testing device for mechanical and electrical equipment components
CN2784912Y (en) Displacement sensitive hardness penetrator device
CN219799181U (en) Scratch instrument for coating performance detection
CN218673405U (en) A detect structure for public four corners of clamping copper detects
CN216791095U (en) An automatic measuring device for piston outer diameter of aviation piston engine
CN114264223B (en) Automatic measuring device for outer diameter of piston of aviation piston engine
CN216645286U (en) Measuring device and measuring system
CN217211453U (en) Piezoelectric actuator performance test platform
CN114322820B (en) Fastener hole degree of depth detects frock
CN211453218U (en) In-situ indentation testing device considering the deformation of the force sensor
CN114577503A (en) Piezoelectric actuator performance test platform
CN110307794B (en) High-precision intelligent aperture testing device and testing method
CN208952929U (en) A new type of power battery shell thickness detection fixture
CN216977856U (en) Lead screw comprehensive measuring device
CN210604203U (en) Three-point bending electric automatic accurate centering adjustment fixture

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination