CN111337173B

CN111337173B - System for measuring locking force of wedge-shaped packaging slot of electronic module

Info

Publication number: CN111337173B
Application number: CN202010131955.6A
Authority: CN
Inventors: 赵亮; 李俞先; 胡家渝; 翁夏; 何智航
Original assignee: Southwest Electronic Technology Institute No 10 Institute of Cetc
Current assignee: Southwest Electronic Technology Institute No 10 Institute of Cetc
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2021-11-19
Anticipated expiration: 2040-02-28
Also published as: CN111337173A

Abstract

The invention discloses a system for measuring the locking force of a wedge-shaped packaging slot of an electronic module, and aims to provide a system capable of measuring the locking force of a two-degree-of-freedom wedge-shaped locking strip. The invention is realized by the following technical scheme: the testing method comprises the following steps that a testing module of a rectangular short base and a testing module of a long base which are vertically overlapped with each other are adopted, linear array arranged positioning bolts and linear array grooves which are perpendicular to each other and are internally provided with pressure sensors are arranged on the end surface of an L-shaped vertical body, each pressure sensor is connected with a data acquisition instrument through a wire hole at the back end of each linear array groove, the positioning bolts are combined with the pressure sensors and inserted into low-heat-conduction locking strips, and a check block below the high-heat-conduction locking strips is used for adjusting the testing distance; the test module uploads the measurement result to an upper computer in real time through the pressure sensor, dynamic test is carried out on the locking force of the wedge-shaped locking strip, and the measurement result is transmitted and displayed in real time.

Description

System for measuring locking force of wedge-shaped packaging slot of electronic module

Technical Field

The invention relates to a locking force measuring system of a wedge-shaped locking strip fixing device of an electronic module case slot. In particular to a system for measuring the locking force of a locking strip in a wedge-shaped packaging form of an aviation high-density electronic module.

Background

With the rapid development of computer technology, the design of various hardware of a computer is more and more exquisite, wherein the development of an integrated circuit enables the past single function and large volume, an analog circuit and discrete components which are independently applied are replaced by a modular structure with high integration, small volume, numerous functions and resource sharing, and the concept of replaceable modules of the computer is popularized. With the development of electronic technology, electronic devices are developed from discrete to integrated, and formerly independent electronic devices are replaced by replaceable modules with more powerful and complex functions. The front of the case body is provided with universal slots with different sockets or shapes, the case is provided with a plurality of slots and interfaces, medium conversion modules with different functions are arranged in the corresponding slots, and one end of the back panel is provided with a main power supply and a standby power supply which can be automatically converted. The main power supply and the standby power supply which provide direct-current voltage for each module in the case are independent respectively and are inserted in a module form, and the locking guide rails which are various in materials and different in functions are used for simulating input channels and automatically connecting and converting the circuit module in the case. When the medium module 2 needs to be replaced, the whole panel is taken down, and after the module needing to be replaced is replaced, the panel is fixed on the rack in front of the box body again. In the design of electronic equipment, the traditional design method from bottom to top is replaced by the top design idea from top to bottom, i.e. the idea of standardization and modularization, and the concept of field replaceable module (LRM) is proposed and popularized. Each module has an independent function, the overall dimension is uniform, and the complex diversity of the dimension is reduced. In maintenance, the module can be taken out on site and replaced by another standard module, and the system can immediately recover to work. Electronic equipment is in a severe vibration and impact environment, and especially the environmental conditions of the electronic equipment are more severe. Therefore, the module must be fixed in the slot of the case by a certain mechanical device, so that the module must not shake or move, and the contact stress between the electronic module and the wall surface of the case is reduced as much as possible. The modules are often connected with the equipment rack through a wedge-shaped locking connection structure, the modules can be quickly and conveniently assembled and disassembled through the connection structure, the maintenance performance of the equipment is improved, and meanwhile, the dynamic performance analysis of the equipment structure is greatly influenced. At present, a wedge-shaped locking mechanism is generally used for fixing an electronic equipment replaceable module, a circuit board and the like, and the wedge-shaped locking mechanism is used for fixing a unit module at a required position. Wedge locking devices are a very important component in the form of cards, modules and printed boards for electronic devices. The wedge-shaped locking device mainly utilizes static friction force between wedge blocks to restrain the motion between two parts with relative motion. The wedge-shaped locking mechanism for electronic equipment mainly comprises a sliding seat, a plurality of sliding blocks and a screw rod, wherein the sliding seat is a connector of a locking device and a module, and the screw rod is in a mechanical form for causing the displacement of the sliding blocks in threaded engagement with a rear sliding block. Under the drive of a locking screw rod, the wedge-shaped slide block mechanisms are mutually extruded to generate extrusion force, the four walls of a heat conduction slide seat box strip formed by two L-shaped heat conduction strips slide along respective guide surfaces, and the box strip expands towards X, Y, Z six freedom degrees, so that the two L-shaped heat conduction strips are separated along diagonal lines in a gap formed by the direct-insert positioning insertion plate and the box cold plate slot until the two L-shaped heat conduction strips compress the four walls of the gap. Each locking strip is provided with a sliding block, a front end screw rod is screwed up to push a wedge block to move, the front wedge block and the rear wedge block are extruded and fixed together with a middle shaft, the moving sliding block moves along the inclined plane of the rear wedge block until being attached tightly, a sliding seat and a module are fixedly connected into a whole in a guide groove for fixing the unit electronic module through extrusion between wedge blocks of a wedge-shaped locking mechanism, and the electronic module is locked in the slot. The locking device locks according to the angle difference between the locking wedge surfaces and the friction force generated by the compression of the spring, can meet the requirements of quick unlocking and locking between the fixed part and the action part, and has the advantages of good operation stability, simple structure, convenience in use and low cost. The plug-in components or modules are fixed by the wedge-shaped locking device, so that the vibration resistance and heat dissipation performance and the reliability of the whole machine can be improved, and the plug-in components or the modules are convenient to disassemble and assemble. The locking device can greatly improve the boundary condition of installation, improve the resonance frequency and reduce the amplitude of the module, thereby improving the vibration resistance of the module. The wedge-shaped locking structure is a contact connection structure in nature, and is characterized in that sometimes the contact is not contacted, the rigidity of the system is continuously changed along with the change of the state, and the complex nonlinear dynamics phenomenon of the system occurs. Wedge locking strips in this particular form of wedge locking connection are important structural and heat transfer components in LRM modules. The stressed deformation condition of the wedge-shaped connecting structure can be known, and the wedge-shaped locking strip has great influence on the analysis of the dynamic performance of the equipment structure. The vibration impact environment to which electronic equipment is exposed is increasingly severe, particularly the stiffening stiffness characteristic of linear stiffness connection structures. In order to reduce the thermal conduction resistance of an electronic module to a cold plate of a case, improve the heat dissipation wedge-shaped locking device of the heat dissipation capability of an electronic module plug-in unit and reduce the messy condition of cables in the prior art, various pluggable modules are installed on the case, a wedge-shaped sliding block mechanism is generally formed by sequentially connecting a locking screw rod in series with a driving sliding block, an intermediate wedge-shaped sliding block and a fixed block, and the intermediate wedge-shaped sliding block is formed by utilizing a left downward moving sliding block, a right upward moving sliding block and a back left downward moving sliding block. Stress means that the metal material generates internal resistance forces with opposite directions and equal magnitude in the metal material under the action of external force. In the stress test, a circuit to be tested is arranged between the guide groove and the box wall on the opposite side of the guide groove, special stress test software is needed, the stress value in the circuit board manufacturing process is collected, and the computer and the stress tester are connected through USB line communication to carry out stress test, ICT stress test, FCT stress test, screw locking stress test, vibration stress test, falling stress test and the like. And opening the collected stress value by using professional stress test report software to generate a report. In the evaluation of the module heat dissipation capacity, the wedge-shaped locking device and the module are respectively contacted with the chassis wall, and the equivalent stress of the wedge-shaped locking device is an important parameter. The wedge lock surface contact pressure is determined by the screw torque and the surface contact pressure is not linearly variable. The torque wrench is used for installation during an experiment, and the purpose of controlling the pressure of a working face is achieved by controlling the tightening torque.

The wedge-shaped locking device for the slot of the electronic module chassis commonly used at present generally adopts two types of wedge-shaped locking strips, one type is the locking strip 2 with low heat conduction as shown in fig. 4, and the other type is the locking strip 4 with high heat conduction as shown in fig. 5. In the application process of the low heat conduction locking strip 2 and the high heat conduction locking strip 4, the locking force and the stroke have a certain relation. After the screw 3 of the low heat-conducting locking strip 2 is screwed into the locking strip, only one degree of freedom is available, and the locking strip can move only in two directions (as shown by arrows in fig. 4), while after the screw 3 of the high heat-conducting locking strip 4 is screwed into the locking strip, two degrees of freedom are available, and the locking strip can move in four directions (as shown by arrows in fig. 5). The traditional locking force measuring system can only test a locking device with single degree of freedom, especially for the locking strip 4 with high heat conductivity as shown in fig. 5, the strokes of the two degrees of freedom are related to the locking force, if the locking force measuring system with single degree of freedom is adopted, the measurement cannot be accurate, so that the locking strip 4 with high heat conductivity has no accurate parameters in the application process, the screw rotating torque cannot be provided in the design process, and meanwhile, the pressure between the locking strip and the module cannot be estimated.

The detection device for the wedge pressing force in the large and small stamping dies, and the like, which are disclosed by the prior art, can only measure the locking force with single degree of freedom; the locking force measuring distance cannot be flexibly adjusted; the locking force measurement is mostly described by a measuring device, a real-time locking force measuring system is not formed, and the real-time change measurement of the locking force such as the change condition in the locking force loading process under the vibration and overload conditions cannot be realized.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the locking force measuring system of the wedge-shaped packaging slot of the electronic module, which can measure the locking force of the traditional single-degree-of-freedom low-heat-conduction locking strip and the locking force of a double-degree-of-freedom high-heat-conduction locking strip, can transmit and display the measuring result in real time by matching with a torque screwdriver or a torque motor, and realizes the dynamic test of the locking force of the wedge-shaped locking strip, so as to improve the test precision.

The technical solution of the invention for realizing the above purpose is as follows: an electronic module wedge package socket locking force measurement system, comprising: independent use, install on shaking table, impact bench, connect data acquisition instrument 7 between host computer 5 and test module through data connection line 6, its characterized in that: the testing module is provided with a rectangular short base 10 and a long base 11 which are vertically overlapped with each other, the root of the formed L shape is provided with longitudinal grooves for vertically arranging the low heat-conducting locking strip 2 and the high heat-conducting locking strip 4, the end surface of the L-shaped vertical body is also provided with positioning bolts 12 which are arranged in a linear array manner and linear array grooves which are mutually vertical planes and internally provided with pressure sensors 8, a data connecting wire 6 of each pressure sensor 8 is connected with a data acquisition instrument 7 through a wire hole at the back end of the linear array groove, the positioning bolts 12 are combined with the pressure sensors 8 and inserted into the low heat-conducting locking strips 2, and a check block 9 below the high heat-conducting locking strips 4 is used for adjusting the testing distance; the test module uploads the measurement result to the upper computer 5 in real time through the pressure sensor 8, the upper computer 5 adopts commercial software Ansys, adopts Ansys simulation software with a mechanical simulation module and a real-time data transmission and simulation model interaction function, establishes a simulation model, sets the areas of main contact surfaces of the connecting part of the locking strip, simulates a steady-state force field of an electronic module under the working condition of the locking strip, dynamically tests a test equivalent force field formed by the locking force of the wedge-shaped locking strip, and transmits and displays the measurement result in real time. "the host computer 5 can realize the dynamic test that can realize the locking force of wedge locking strip"

Compared with the prior art, the invention has the following beneficial effects:

the invention can test the locking force of the single-degree-of-freedom locking strip and can also test the locking force of the double-degree-of-freedom locking strip. The device is used independently, can be installed on a vibration table and an impact table, is connected with a data acquisition instrument 7 between an upper computer 5 and a test module through a data connecting line 6 to form a system for measuring the locking force of the two-degree-of-freedom wedge-shaped locking device, and is combined with a torque screwdriver through the data acquisition instrument 7 and the upper computer 8 to adjust the pre-tightening force loaded by the screw 3 so as to obtain the locking force under the conditions of different pre-tightening forces of the screw 3. The upper computer adopts a dynamic model reflecting the nonlinear characteristics of the wedge-shaped connecting structure according to the stress deformation condition of the wedge-shaped connecting structure with the actual nonlinear dynamic characteristics of the wedge-shaped locking connecting structure, numerical simulation calculation is carried out on the nonlinear dynamic characteristics of the connecting structure, and comparative analysis is carried out on the nonlinear dynamic characteristics and the actual experimental result, so that the whole wedge-shaped locking connecting device has stronger nonlinear response characteristics.

The invention can realize the test distance adjustment between the stop block 9 and the short base 10 or the long base 11 by inserting the positioning bolt 12 at the top of the pressure sensor 8 and the short base 10 or the end face of the long base 11 into the gaskets 13 with different thicknesses, so that the load loaded by the pressure sensor 8 obtains different stroke locking forces with better matching test results. The upper computer is combined with test software thereof to measure the contact stress of the locking strip under different locking moments, and the test accurately sets the position and the magnitude of the stress of the locking strip. The method avoids testing the stress of each part, meets the engineering requirement and reduces the workload.

The invention can independently use the measuring device or install the measuring device on a vibration table, an impact table and other devices, and can measure the locking force change condition of the locking strip 2 or the locking strip 4 in real time. The upper computer 5 adopts commercial software Ansys to establish a simulation model, sets the area of each main contact surface of the connecting part of the locking strip, simulates a steady-state force field of an electronic module under the working condition of the locking strip, dynamically tests a test equivalent force field formed by the locking force of the wedge-shaped locking strip, can conveniently observe the data condition transmitted by the pressure sensor 8 in the computer of the upper computer 5, and can determine the locking force of the

locking strip

2 or 4. And the pressure sensor is connected with an upper computer, can transmit and display a measurement result in real time, and can realize dynamic test of the locking force of the wedge-shaped locking strip in cooperation with a torque screwdriver or a torque motor.

Drawings

FIG. 1 is a schematic diagram of a system for measuring a locking force of a wedge-shaped package slot of a two-degree-of-freedom test electronic module.

Fig. 2 is a schematic view of the configuration of the pressure sensor shown in fig. 1.

Fig. 3 is a schematic view of the position of the mounting pad 13 of fig. 2.

Fig. 4 is a schematic view of the construction of the gasket 13 of fig. 3 of different thickness.

Fig. 5 is a schematic view of a locking bar wedge-shaped package electronic module.

Fig. 6 is a schematic view of a prior art low thermal conductivity locking strip.

Fig. 7 is a schematic view of a prior art thermally conductive locking strip.

In the figure: the device comprises an electronic module 1, a low-heat-conduction locking strip 2, a screw rod 3, a high-heat-conduction locking strip 4, an upper computer 5, a data connecting line 6, a data acquisition instrument 7, a pressure sensor 8, a stop block 9, a short base 10, a long base 11, a positioning bolt 12 and a gasket 13.

Detailed Description

See fig. 1-4. In a preferred embodiment described below, an electronic module wedge package socket locking force measurement system comprises: and the data acquisition instrument 7 is arranged on the vibration table and the impact table and is connected between the upper computer 5 and the test module through a data connecting wire 6. The testing module is provided with a short rectangular base 10 and a long rectangular base 11 which are vertically overlapped, the root of the formed L-shaped body is provided with longitudinal grooves for vertically arranging the low-heat-conduction locking strip 2 and the high-heat-conduction locking strip 4, the end surface of the L-shaped vertical body is also provided with positioning bolts 12 which are arranged in a linear array manner and linear array grooves which are mutually vertical planes and internally provided with pressure sensors 8, a data connecting wire 6 of each pressure sensor 8 is connected with a data acquisition instrument 7 through a wire hole at the back end of the linear array groove, the positioning bolts 12 are combined with the pressure sensors 8 and inserted into the low-heat-conduction locking strips 2, and a check block 9 below the high-heat-conduction locking strips 4 is used for adjusting the testing distance; the test module uploads the measurement result to the upper computer 5 in real time through the pressure sensor 8, the upper computer 5 adopts commercial software Ansys simulation software which has a mechanical simulation module and has a real-time data transmission and simulation model interaction function, a simulation model is established, the area of each main contact surface of the connecting part of the locking strip is set, a steady-state force field of the electronic module under the working condition of the locking strip is simulated, a test equivalent force field formed by the locking force of the wedge-shaped locking strip is dynamically tested, and the measurement result is transmitted and displayed in real time.

According to standard requirements, the locking strip locking force under different pretightening forces of the screw rods 3 is obtained by loading loads on the low-heat-conduction locking strip 2 and the high-heat-conduction locking strip 4 through the screw rods 3.

The top of the pressure sensor 8, the short base 10 and the long base 11 are provided with gaskets 13 with different thicknesses according to requirements, so that the test distance between the stop block 9 and the short base 10 and between the long base 11 can be adjusted. Therefore, the adjustment of the test distance between the stopper 9 and the short base 10 and the long base 11 can be realized by inserting the spacers 13 of different thicknesses between the top of the pressure sensor 8 and the top of the short base 10 or the longitudinal groove of the long base 11. Through changing the gasket 13 of different thickness, adjust the test interval between dog 9 and short base 10, the long base 11, obtain the locking force of locking strip under the different test intervals. The thickness of the gasket can be manufactured according to the requirement, and can be manufactured into a series, and the difference of the thickness of each gasket is 0.1 mm.

Before testing, according to the testing requirements of the tested low-heat-conduction locking strip 2 or high-heat-conduction locking strip 4, gaskets 13 with different thicknesses are inserted between the long base 11 and the top of the pressure sensor 8 to fix the testing interval in the short base 10, the testing interval is fixed by adjusting the positioning bolt 12, the low-heat-conduction locking strip 2 or the high-heat-conduction locking strip 4 is inserted, a torque screwdriver is used for loading a load to the screw 3 of the low-heat-conduction locking strip 2 or the high-heat-conduction locking strip 4, the load loading range of the torque screwdriver is determined by combining standard regulations, the locking force of the locking strip 2 or the locking strip 4 is measured in real time, and the locking force of the locking strip 2 or the locking strip 4 in different strokes is obtained.

The torque screwdriver or the torque motor is adopted, the low-heat-conduction locking strip 2 or the high-heat-conduction locking strip 4 is twisted according to the installation requirement of the low-heat-conduction locking strip 2 or the high-heat-conduction locking strip 4, the measuring device is directly and independently used, or the torque screwdriver or the torque motor is installed on a vibrating table or an impact table device, and the locking force change condition of the locking strip 2 or the locking strip 4 is measured in real time.

According to the stroke of the low heat conduction locking strip 2 or the high heat conduction locking strip 4 in the application process, the low heat conduction locking strip 2 or the high heat conduction locking strip 4 is inserted into the measuring position between the stop block 9 and the short base 10 or the long base 11, and the distance between the stop block 9 and the short base 10 or the distance between the stop block 9 and the long base 11 at the measuring position is adjusted by inserting a gasket 13 below the screw 3. And a data connecting wire 6 is used for connecting the pressure sensor 8 with the data acquisition instrument 7 and the upper computer 5, and the testing system is turned on. The data acquisition instrument 7 acquires a test result of the contact pressure of the positioning bolt 12, and uploads the test result to the upper computer 5 in real time through the data connecting line 6, so that the locking force change condition of the locking strip 2 or the locking strip 4 can be measured in real time when different pre-tightening forces are loaded on the screw rod 3 by the locking strip 2 or the locking strip 4.

The foregoing is directed to the preferred embodiment of the present invention and it is noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims

1. An electronic module wedge package socket locking force measurement system, comprising: test module installs at shaking table, impact bench, establishes ties data acquisition appearance (7), host computer (5) in order through data connection line (6), its characterized in that: the testing module is provided with a rectangular short base (10) and a long base (11) which are vertically overlapped with each other, the root of the formed L-shaped body is provided with longitudinal grooves for vertically arranging the low heat-conducting locking strip (2) and the high heat-conducting locking strip (4), the end surface of the L-shaped vertical body is also provided with positioning bolts (12) which are arranged in a linear array manner and linear array grooves which are perpendicular to each other and are internally provided with pressure sensors (8), a data connecting wire (6) of each pressure sensor (8) is connected with a data acquisition instrument (7) through a wire hole at the back end of the linear array groove, and the positioning bolts (12) are combined with the pressure sensors (8) to adjust the testing distance between the high heat-conducting locking strip (4) and the low heat-conducting locking strip (2) by inserting T-shaped stoppers (9) which are perpendicular to each other; the testing module uploads the measuring result to the upper computer (5) in real time through the pressure sensor (8), the upper computer (5) adopts Ansys simulation software which has a mechanical simulation module and has the functions of real-time data transmission and simulation model interaction to establish a simulation model, the areas of main contact surfaces of the connecting part of the locking strip are set, the steady-state force field of the electronic module under the working condition of the locking strip is simulated, the testing equivalent force field formed by the locking force of the wedge-shaped locking strip is dynamically tested, and the measuring result is transmitted and displayed in real time.

2. The system of claim 1, wherein the wedge-shaped package socket locking force measuring system comprises: according to standard requirements, the locking force of different strokes is obtained by loading loads on the low-heat-conduction locking strip (2) and the high-heat-conduction locking strip (4) through the screw (3), a data acquisition instrument (7) acquires a test result of contact pressure of the positioning bolt (12), and the test result is uploaded to an upper computer (5) through a data connecting line (6) in real time, so that dynamic test of the locking force of the wedge-shaped locking strip is realized.

3. The system of claim 1, wherein the wedge-shaped package socket locking force measuring system comprises: in the testing process, the pressure sensor (8) is connected with the data acquisition instrument (7) through the data connecting line (6), the testing result acquired by the data acquisition instrument (7) can be uploaded to the upper computer (5) in real time through the data connecting line (6), and before the locking force of the locking strip is measured, the stroke of the low-heat-conduction locking strip (2) or the high-heat-conduction locking strip (4) in the application process is determined firstly.

4. The system of claim 1, wherein the wedge-shaped package socket locking force measuring system comprises: according to standard requirements, the locking strip locking force under different screw (3) pretightening forces is obtained by loading loads on the low heat conduction locking strip (2) and the high heat conduction locking strip (4) through the screw (3).

5. The system of claim 1, wherein the wedge-shaped package socket locking force measuring system comprises: between the top of the pressure sensor (8) and the top of the longitudinal grooves of the short base (10) and the long base (11), gaskets (13) with different thicknesses are mounted according to requirements to adjust the testing distance between the stop block (9) and the short base (10) and the long base (11).

6. The system of claim 1, wherein the wedge-shaped package socket locking force measuring system comprises: insert gasket (13) of different thickness between pressure sensor (8) top and the vertical groove top of short base (10), long base (11), insert low heat conduction locking strip (2) or high heat conduction locking strip (4), realize dog (9) and short base (10), the regulation of test interval between long base (11).

7. The system of claim 1, wherein the wedge-shaped package socket locking force measuring system comprises: before testing, according to the testing requirements of the tested low heat conduction locking strip (2) or high heat conduction locking strip (4), gaskets (13) with different thicknesses are inserted between the tops of the longitudinal grooves of the short base (10) and the long base (11) and the top of the pressure sensor (8) to fix the test spacing, the testing distance is fixed by adjusting the positioning bolts (12), the low heat conduction locking strip (2) or the high heat conduction locking strip (4) is inserted, a load is loaded to the screw rod (3) of the low heat conduction locking strip (2) or the high heat conduction locking strip (4) by a torque screwdriver, the load is loaded on the screw (3) through the torque screwdriver, the load loading range of the torque screwdriver is determined by combining with standard regulations, the locking force of the low-heat-conduction locking strip (2) or the high-heat-conduction locking strip (4) is measured in real time, and the locking force of the low-heat-conduction locking strip (2) or the high-heat-conduction locking strip (4) in different strokes is obtained.

8. The system of claim 1, wherein the wedge-shaped package socket locking force measuring system comprises: according to the stroke of the low-heat-conduction locking strip (2) or the high-heat-conduction locking strip (4) in the application process, the low-heat-conduction locking strip (2) or the high-heat-conduction locking strip (4) is inserted into the measuring position between the stop block (9) and the short base (10) and between the long base (11), the distance between the stop block (9) and the short base (10) and the distance between the stop block (9) and the long base (11) are adjusted by inserting a gasket (13) below the screw head of the screw rod (3).

9. The system of claim 1, wherein the wedge-shaped package socket locking force measuring system comprises: and a data connecting line (6) is used for connecting the pressure sensor (8), the data acquisition instrument (7), the upper computer (5) and the debugging test system.

10. The system of claim 1, wherein the wedge-shaped package socket locking force measuring system comprises: adopt moment screwdriver or torque motor, according to low heat conduction locking strip (2) or high heat conduction locking strip (4) installation requirement, wrench movement low heat conduction locking strip (2) or high heat conduction locking strip (4), with the direct exclusive use of test module, the locking force variation condition of real-time measurement low heat conduction locking strip (2) or high heat conduction locking strip (4).