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WO2020143204A1 - Outil d'étalonnage, et dispositif et procédé de mesure d'espace d'ajustement de connecteur homologue aveugle - Google Patents

Outil d'étalonnage, et dispositif et procédé de mesure d'espace d'ajustement de connecteur homologue aveugle Download PDF

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Publication number
WO2020143204A1
WO2020143204A1 PCT/CN2019/096093 CN2019096093W WO2020143204A1 WO 2020143204 A1 WO2020143204 A1 WO 2020143204A1 CN 2019096093 W CN2019096093 W CN 2019096093W WO 2020143204 A1 WO2020143204 A1 WO 2020143204A1
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WO
WIPO (PCT)
Prior art keywords
connector
displacement sensor
displacement
disk
machine
Prior art date
Application number
PCT/CN2019/096093
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English (en)
Chinese (zh)
Inventor
何丽平
周海
Original Assignee
烽火通信科技股份有限公司
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 烽火通信科技股份有限公司 filed Critical 烽火通信科技股份有限公司
Priority to BR112021007703-0A priority Critical patent/BR112021007703B1/pt
Publication of WO2020143204A1 publication Critical patent/WO2020143204A1/fr

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    • 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
    • G01B21/16—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 distance of clearance between spaced objects

Definitions

  • the invention relates to the field of measuring the interworking gap between the machine board and the backplane connector, in particular to a measuring device and method for the interworking gap of the blind plug connector.
  • the interworking gap (Demated value) between the chassis connector and the sub-frame backplane connector directly affects the reliability of the product. Many signal failures are related to this value being too large.
  • the Demated value is specifically shown in Figures 1 and 2.
  • the factors that affect the Demated value include the machining and assembly errors of the machine board, the machining and assembly errors of the sub-frame, and the deformation of the machine board after insertion and removal of the backplane. All the influencing factors are normally distributed. How to accurately and efficiently measure the Demated value has become an urgent problem to be solved in the design and manufacture of high-end equipment.
  • the Demated value mainly measures the distance from the machine panel to the backplane and the distance from the machine panel to the machine connector through a depth ruler, and calculates the interworking gap of the connector based on the thickness value of the backplane connector shell bottom.
  • the object of the present invention is to provide a measurement device for the gap of the blind mating connector, which can avoid the problem of poor measurement data consistency caused by multiple measurements and multiple calculations. It is not limited by the test conditions, the whole test tooling is simple and easy to operate, the test efficiency is high, and the test accuracy is high.
  • a measuring device for inter-matching gap of blind plug connectors including:
  • the calibration tooling is provided with a groove, and the depth S of the groove is the length of the part of the pin on the backplane connector for mating with the signal connector on the backplane connector plus the thickness of the bottom of the backplane connector shell;
  • Analog machine disk which includes,
  • At least one displacement sensor which is fixed on the disk body and is arranged adjacent to one of the machine disk connectors, and the portion of the displacement sensor extending from the disk body exceeds the length of the machine disk connector Slightly larger than the depth S;
  • the displacement sensor when the calibration tool is attached to the simulated machine disk, the displacement sensor can be extended into the groove, and at least one machine board connector can be held against The step surface of the groove.
  • the displacement tester is also used to clear the data read when the calibration tool is attached to the simulated machine disk.
  • the simulated machine disk includes three displacement sensors.
  • the measuring device further includes an operating platform for receiving the simulated machine disk.
  • another object of the present invention is to provide a calibration tooling, which can avoid the problem of poor measurement data consistency caused by multiple measurements and multiple calculations, and is not limited by the test conditions.
  • the entire test tooling Simple and easy to operate, high test efficiency and high test accuracy.
  • a calibration tool is used to assist in measuring the interworking gap between the machine disk connector and the backplane connector.
  • the calibration tool is provided with a groove, and the depth S of the groove is the signal pin on the backplane connector.
  • the pin length of the connector of the machine board connector is connected to the thickness of the bottom of the backplane connector shell.
  • another object of the present invention is to provide a calibration tooling, which can avoid the problem of poor measurement data consistency caused by multiple measurements and multiple calculations, and is not limited by the test conditions.
  • the entire test tooling Simple and easy to operate, high test efficiency and high test accuracy.
  • a method for measuring the inter-matching gap using the above measurement device includes the following steps:
  • the calibration tool is attached to the simulated machine disk so that the displacement sensor extends into the groove, and at least one machine disk connector is pressed against the step of the groove On the surface, the pre-compression amount t1 of the displacement sensor at this time is read by the displacement tester.
  • a displacement tester is used to clear the pre-compression amount t1 of the displacement sensor.
  • the simulated machine disk includes three displacement sensors, and the three displacement sensors are used to respectively measure the corresponding pre-compression amount t1 and displacement value t2.
  • the measurement device of the blind mating connector inter-matching gap of the present invention only requires fewer measurement calculations, and the consistency of the measurement data is better, because The S value is known in advance (the measurement is simple and convenient, and there is no limit to the test space).
  • the displacement sensor and displacement tester are needed to measure t1 and t2.
  • the entire test tooling is simple and easy to operate, and the test efficiency is high.
  • t1 is measured, which eliminates the nonlinear part of the front end of the displacement sensor, and adopts the measurement method of the combination of the displacement sensor and the displacement tester. Compared with the existing test method, it can only reach 0.1mm.
  • the measurement method in the present invention can It reaches 0.01mm, which can meet the measurement accuracy requirements.
  • the measuring device of the blind mating connector interworking gap of the present invention can flexibly select multiple test points by setting multiple displacement sensors to determine the position and trend of the worst DEMATED value, making the measurement results more reliable .
  • Figure 1 is a schematic plan view of the Demated value of the interworking gap
  • Figure 2 is a perspective schematic view of the Demated value of the interworking gap
  • Figure 3 is a schematic diagram of the relevant dimensions when measuring the Demated value with a depth ruler
  • FIG. 4 is a schematic structural diagram of a measurement device in an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a calibration tooling in an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of calibration tooling and simulated machine board testing in an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of t1 and t2 during the test process of the subrack to be tested in the embodiment of the present invention.
  • an embodiment of the present invention provides a measurement device for a blind mating connector inter-matching gap, which includes a calibration tool 1 and an analog machine board 2.
  • the calibration tool 1 is provided with a groove 11, and the depth S of the groove 11 is the length of the part of the pin used for butting the signal pin on the backplane connector and the chassis connector plus the thickness of the bottom of the backplane connector shell .
  • Analog machine board 2 which includes,
  • At least one displacement sensor 22 which is fixed on the disk body 21, and is arranged adjacent to one of the machine disk connectors, and the portion of the displacement sensor 22 that protrudes from the disk body 21 exceeds the machine disk
  • the length of the connector is slightly larger than the depth S;
  • the measurement device in this embodiment further includes an operation platform 3, which is mainly used to provide a test platform, and is used to hold the simulation machine board 2 in actual use.
  • This S value refers to the length of the part of the pin on the backplane connector that is used for the docking of the signal pin and the chassis connector plus the thickness of the bottom of the backplane connector shell.
  • the bottom of the connector shell is the boundary.
  • the part of the pin length on the backplane connector that is used for the docking of the signal pin with the chassis connector refers to the part located on the left side of the bottom of the backplane connector shell.
  • This S value can be measured in advance. After the S value is obtained, the calibration tool 1 can be made based on the S value, and the depth of the groove 11 of the calibration tool 1 is S.
  • the simulated machine board 2 refers to a machine board manufactured according to the structure size of the actual machine board, the model and the number of the machine board connectors, and can simulate the situation when the actual machine board is inserted.
  • the portion of the displacement sensor 22 that protrudes from the disk body 21 exceeds the length of the machine disk connector and is slightly larger than the depth S. The effect it has is that the displacement sensor 22 will be located in the groove 11 A little bit of pre-compression amount t1 is generated. This pre-compression amount t1 is mainly to eliminate the nonlinear part of the front end of the displacement sensor 22, and can be set reasonably according to the actual situation.
  • an embodiment of the present invention provides a measurement device for a blind mating connector inter-matching gap, which includes a calibration tool 1 and an analog machine board 2.
  • the calibration tool 1 is provided with a groove 11, and the depth S of the groove 11 is the length of the part of the pin used for butting the signal pin on the backplane connector and the chassis connector plus the thickness of the bottom of the backplane connector shell .
  • Analog machine board 2 which includes,
  • At least one displacement sensor 22 which is fixed on the disk body 21, and is arranged adjacent to one of the machine disk connectors, and the portion of the displacement sensor 22 that protrudes from the disk body 21 exceeds the machine disk
  • the length of the connector is slightly larger than the depth S;
  • the displacement sensor 22 can be extended into the groove 11 and at least one machine board connector can be held against The step surface of the groove 11 is described.
  • the two machine disk connectors adjacent to the displacement sensor 22 bear against the stepped surface of the groove 11 so that the measurement will be more accurate.
  • an embodiment of the present invention provides a measurement device for a blind mating connector inter-matching gap, which includes a calibration tool 1 and an analog machine board 2.
  • the calibration tool 1 is provided with a groove 11, and the depth S of the groove 11 is the length of the part of the pin used for butting the signal pin on the backplane connector and the chassis connector plus the thickness of the bottom of the backplane connector shell .
  • Analog machine board 2 which includes,
  • At least one displacement sensor 22 which is fixed on the disk body 21, and is arranged adjacent to one of the machine disk connectors, and the portion of the displacement sensor 22 that protrudes from the disk body 21 exceeds the machine disk
  • the length of the connector is slightly larger than the depth S;
  • displacement tester 23 is also used to clear the data read when the calibration tool 1 and the simulation machine plate 2 are attached.
  • the value of T can be directly obtained by reading the displacement value of the displacement sensor 22 (in this case, t2).
  • an embodiment of the present invention provides a measurement device for a blind mating connector inter-matching gap, which includes a calibration tool 1 and an analog machine board 2.
  • the calibration tooling 1 has
  • a groove 11, the depth S of the groove 11 is the length of a part of the pin used for butt connection between the signal pin on the backplane connector and the chassis connector plus the thickness of the bottom of the backplane connector shell.
  • Analog machine board 2 which includes,
  • At least one displacement sensor 22 which is fixed on the disk body 21, and is arranged adjacent to one of the machine disk connectors, and the portion of the displacement sensor 22 that protrudes from the disk body 21 exceeds the machine disk
  • the length of the connector is slightly larger than the depth S;
  • simulation machine board 2 includes three displacement sensors 22.
  • test points can be flexibly selected to determine the position and trend of the worst DEMATED value, making the measurement results more reliable.
  • an embodiment of the present invention provides a calibration tool 1 for assisting in measuring the interworking gap between a machine disk connector and a backplane connector.
  • the calibration tool 1 is provided with a groove 11.
  • the depth S of the groove 11 is the length of the part of the pin on the backplane connector used for butt connection between the signal pin and the chassis connector plus the thickness of the bottom of the backplane connector shell.
  • An embodiment of the present invention provides a method for measuring an interworking gap using the measurement device in Embodiment 1, the method includes the following steps:
  • An embodiment of the present invention provides a method for measuring an interworking gap using the measurement device in Embodiment 1, the method includes the following steps:
  • the calibration tool 1 is attached to the simulated machine board 2 so that the displacement sensor 22 extends into the groove 11 while at least one machine board connector is held against the step of the groove 11
  • the displacement tester 23 reads the pre-compression amount t1 of the displacement sensor 22 at this time.
  • the two machine disk connectors adjacent to the displacement sensor 22 bear against the stepped surface of the groove 11 so that the measurement will be more accurate.
  • the displacement tester 23 is used to clear the pre-compression amount t1 of the displacement sensor 22.
  • the value of T can be directly obtained by reading the displacement value of the displacement sensor 22 (in this case, t2).
  • An embodiment of the present invention provides a method for measuring an interworking gap using the measurement device in Embodiment 1, the method includes the following steps:
  • the simulated machine disk 2 includes three displacement sensors 22, and the three displacement sensors 22 are used to respectively measure the corresponding pre-compression amount t1 and displacement value t2.
  • test points can be flexibly selected to determine the position and trend of the worst DEMATED value, making the measurement results more reliable.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

L'invention concerne un dispositif et un procédé de mesure d'un espace d'ajustement de connecteur homologue aveugle, comprenant : un outillage d'étalonnage (1) qui est muni d'une rainure (11), la profondeur S de la rainure (11) étant une longueur de broche partielle d'une broche de signal d'un connecteur de fond de panier destiné à être connecté à un connecteur de disque de machine à laquelle s'ajoute l'épaisseur du fond de boîtier du connecteur de fond de panier ; et un disque de machine de simulation (2). Le disque de machine de simulation (2) comprend : un corps de disque (21) ; une pluralité de connecteurs de disque de machine qui sont chacun fixés sur le corps de disque (21) ; au moins un capteur de déplacement (22) qui est fixé sur le disque de machine de simulation (2) et disposé de manière adjacente à un connecteur de disque de machine, la longueur d'une partie du capteur de déplacement (22) qui fait saillie du disque de machine de simulation (2) au-delà du connecteur de disque de machine étant légèrement supérieur à la profondeur S ; et un testeur de déplacement (23) qui est relié au capteur de déplacement (22) et utilisé pour lire des données du capteur de déplacement (22). Le dispositif de mesure de l'espace d'ajustement de connecteur homologue aveugle peut éviter le problème de mauvaise cohérence de données de mesure provoquée par de multiples mesures et de multiples calculs, et n'est pas limité par les conditions de test. L'ensemble de l'outillage de test est simple et facile à utiliser, possède une efficacité et une précision de test élevées.
PCT/CN2019/096093 2019-01-07 2019-07-16 Outil d'étalonnage, et dispositif et procédé de mesure d'espace d'ajustement de connecteur homologue aveugle WO2020143204A1 (fr)

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CN113340176B (zh) * 2021-07-14 2022-06-14 航天南湖电子信息技术股份有限公司 一种t/r组件插箱k值检测装置及检测方法
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BR112021007703A2 (pt) 2021-07-27
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