CN211978571U

CN211978571U - Flexure-resistant test system

Info

Publication number: CN211978571U
Application number: CN202020607428.3U
Authority: CN
Inventors: 梁铁军
Original assignee: Dongguan Atomic Industrial Automation Equipment Co ltd
Current assignee: Liang Tiejun
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2020-11-20
Anticipated expiration: 2030-04-21

Abstract

The utility model relates to the field of test systems and equipment, in particular to a flexing-resistant test system, which comprises a flexing test unit and a measuring and recording unit; the deflection test unit comprises a first connecting module, a second connecting module arranged at an interval with the first connecting module, and an eccentric transmission device fixedly connected with the first connecting module; the eccentric transmission device comprises a fixed rod connected with the first connecting module, a sliding connecting rod, a rotating module and an eccentric adjusting module connected with the sliding connecting rod and the rotating module; one end of the sliding connecting rod is pivoted with the fixed rod, and the other end of the sliding connecting rod is pivoted with the eccentric adjusting module; the measuring and recording unit comprises a computer central control module and a multi-channel resistance measuring instrument. The utility model provides a measure process automation, test procedure standardization, result and judge intelligent, the human error is few, the resistant bending test system that measurement of efficiency is high.

Description

Flexure-resistant test system

Technical Field

The utility model relates to a test system and equipment field especially relate to a resistant inflection test system.

Background

With the trend of miniaturization and miniaturization of communication and electronic equipment, copper foils and various materials also tend to be thinner, and the thickness requirement is thinner and thinner, and the circuits are smaller and denser. With the further improvement of the requirements, the performance requirements of many materials are changed, and many material parameters which are not included and paid attention to in the past are gradually and more concerned. However, corresponding standards and detection means are not kept up with the above-mentioned method, so that performance tests required by many materials are completed in a compact manner, time and labor are consumed, and the actual performance of the materials cannot be truly reflected by the test process and the results.

Copper foil and copper-clad flexible material, printed circuit board, etc. (hereinafter, collectively referred to as "copper foil material") in the range of 9um to 200um (approximately) are increasingly used in the electronic industry, and the usage factors thereof have been shifted to the flexibility and bendability of the copper foil material (applications such as flip phones, portable computers, mobile phone retractable lenses, printed circuit board cables, etc.). These applications require, without exception, that the copper foil material must have good flex resistance, especially in confined spaces. According to partial data, the bending and flexing resistant times of the copper foil material when the bending radius is 0.5mm-2.0mm need to be more than 10 ten thousand times. Based on the above, in the performance test of the copper foil material (especially, the copper foil used as the circuit substrate), the resistance change and the final bending resistance frequency in the micro-radius bending process need to be tested, and the bending resistance of the copper foil material has become an important index for evaluating the copper foil material, and is increasingly paid attention by various suppliers and manufacturers.

The current industry test for small radius flex resistance of copper foil material is generally as follows in figure 1: the shadow part is a test material (H is the thickness of the material), the A end of the shadow part is a fixed end (both in a pasting or clamping way), the B end is a sliding end, the bending radius formed between the A end and the B end is the bending radius, and the up-and-down sliding distance of the B end is the bending stroke. In the bending resistance test of the product, the material is bent at the end B according to a fixed frequency and a fixed stroke, and then the bending resistance of the copper foil material can be obtained by detecting the resistance value of the material after different bending times, wherein one-time test is usually within 4 hours to 3 days according to the requirement.

At present, no standard operation specification and equipment exist in the industry, and the moving end B moves back and forth by adopting machinery or even hands, and after the moving end B bends for a certain number of times, a universal meter or other instruments are used for measuring the resistance value manually. The whole test process is time-consuming and labor-consuming, and due to the lack of necessary mechanical means for assistance, the number of simultaneously measurable samples is usually only one to a few, so that the whole deflection test process is not only slow in efficiency and poor in resistance test precision, but also the test result usually cannot accurately represent the actual performance of the material.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem, the utility model provides a measure process automation, test procedure standardization, result and judge intelligent, the human error is few, the resistant flexible test system that measurement of efficiency is high.

The utility model adopts the following technical scheme:

a flexing endurance testing system includes a flexing endurance testing unit and a measurement recording unit; the deflection test unit comprises a first connecting module, a second connecting module arranged at an interval with the first connecting module, and an eccentric transmission device fixedly connected with the first connecting module; the eccentric transmission device comprises a fixed rod connected with the first connecting module, a sliding connecting rod, a rotating module and an eccentric adjusting module connected with the sliding connecting rod and the rotating module; one end of the sliding connecting rod is pivoted with the fixed rod, and the other end of the sliding connecting rod is pivoted with the eccentric adjusting module; the measuring and recording unit comprises a computer central control module and a multi-channel resistance measuring instrument.

The further improvement of the technical scheme is that the flexible testing device further comprises a case, the case further comprises a first case body and a second case body, the flexible testing unit is arranged in the first case body, and the measuring and recording unit is arranged in the second case body.

The further improvement of the technical scheme is that the first box body comprises an upper box door and a lower box door arranged below the upper box door, a first visual window is arranged on the upper box door, and a second visual window is arranged on one side of the case corresponding to the deflection test unit.

The further improvement of the technical scheme is that the first connecting module comprises a sliding plate, a first sliding block connected with the sliding plate and a sliding guide rail, the sliding plate is connected with the sliding guide rail in a sliding mode through the first sliding block, and the number of the first sliding block and the number of the sliding guide rail are two.

The further improvement of the technical scheme is that the second connecting module comprises a fixed plate, a connecting plate vertically connected with the fixed plate, a second sliding block connected with the connecting plate and a line rail, the connecting plate is connected with the line rail through the second sliding block in a sliding mode, and the number of the second sliding block and the number of the line rail are two.

The technical scheme is further improved in that the rotating module comprises a transmission shaft and a transmission wheel connected to one side of the transmission shaft, and the transmission wheel is connected to a transmission motor through a transmission belt.

The technical scheme is further improved in that the eccentric adjusting module comprises an eccentric shaft connected with the sliding connecting rod, a connecting and adjusting assembly and an eccentric wheel, wherein the connecting and adjusting assembly and the eccentric wheel are respectively connected with the eccentric shaft; the connecting and adjusting assembly is provided with a thread pair, and the connecting and adjusting assembly is connected to the eccentric shaft through the thread pair.

The technical scheme is further improved in that the computer central control module comprises a display screen, a host connected with the display screen and a human-computer operation interface displayed on the display screen; the human-computer operation interface also comprises a sample resistance testing interface and a sample breaking frequency testing interface.

The utility model has the advantages that:

1. the utility model discloses an automation, the standardization of flexion action each time, repeatability, reproducibility through measurement mode each time for the measurement process automation of copper foil material, test procedure are standardized, the result is judged intellectuality, thereby reduces human error and improves measurement of efficiency.

2. A measurement recording unit, namely a data acquisition and monitoring system, is adopted to integrate two testing processes of a deflection testing unit and a multi-channel resistance measuring instrument, and the automation, standardization and intellectualization of the deflection-resistant test of the copper foil material are realized by testing a plurality of samples in real time, acquiring the numerical values of the plurality of samples, recording and analyzing.

3. The two flat plates are adopted and the relative displacement of the two flat plates is utilized to realize the adjustment of the deflection radius and the deflection point and the deflection radius of the effective repeated operation process.

4. The adjustment of the deflection stroke and the stabilization of the effective repeated operation process are realized by an eccentric wheel mode.

Drawings

FIG. 1 is a schematic structural view of a copper foil material in a small radius flex resistance test mode;

FIG. 2 is a relational diagram of a flex endurance test system of the present invention;

fig. 3 is a schematic structural diagram of a flexure-resistant testing system of the present invention;

fig. 4 is a left side view of the flex endurant test system of fig. 3;

fig. 5 is a schematic structural diagram of a flexure testing unit of the flexure-resistant testing system of the present invention;

fig. 6 is a front view of a flexure testing unit of the flexure tolerant testing system of the present invention;

fig. 7 is a rear view of a flexure testing unit of the flexure-resistant testing system of the present invention;

fig. 8 is a schematic structural diagram of a measurement recording unit of the bending resistance testing system of the present invention;

fig. 9 is a schematic view of a human-machine interface of the flexing endurance testing system of the present invention.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention.

As shown in fig. 1 to 9, a flexure-resistant testing system includes a flexure testing unit 20 and a measurement recording unit 30; the flexing test unit 20 comprises a first connection module 40, a second connection module 50 spaced apart from the first connection module 40, and an eccentric transmission device 60 fixedly connected to the first connection module 40; the eccentric transmission device 60 comprises a fixed rod 61 connected to the first connection module 40, a sliding link 62 with one end pivoted with the fixed rod 61, a rotation module 63, and an eccentric adjustment module 64 connecting the sliding link 62 and the rotation module 63; one end of the sliding connecting rod 62 is pivoted with the fixed rod 61, and the other end of the sliding connecting rod 62 is pivoted with the eccentric adjusting module 64; the measurement recording unit 30 comprises a computer central control module 31 and a multi-channel resistance measuring instrument 32.

The testing device further comprises a case 10, the case 10 further comprises a first case body 11 and a second case body 12, the bending testing unit 20 is arranged on the first case body 11, and the measuring and recording unit 30 is arranged on the second case body 12.

The first box 11 includes an upper box door 113 and a lower box door 114 disposed below the upper box door 113, the upper box door 113 is provided with a first visual window 115, and one side of the chassis 10 corresponding to the deflection test unit 20 is provided with a second visual window 116.

The computer central control module 31 is provided with configuration software written by C language; the flexure test unit 20 also includes a PLC module. The computer central control module 31 is respectively connected with the PLC module 29 of the deflection test unit 20 and the multi-channel resistance measuring instrument 32 through communication lines, and respectively controls the deflection test unit 20 and the multi-channel resistance measuring instrument 32 to operate or stop through communication with the PLC module 29 and the multi-channel resistance measuring instrument 32 through configuration software, so as to collect operation data and test data. The multi-channel resistance measuring instrument 32 is provided as a multi-channel resistance measuring instrument 32.

The computer center control module 31 includes a display 311, a host 312 connected to the display 311, and a human-machine interface 313 displayed on the display 311. As shown in fig. 9, the human-machine interface 313 further includes a sample resistance test interface 313a and a sample breaking frequency test interface 313 b.

The sample resistance test interface 313a is configured to test the resistance of a plurality of samples after a certain number of deflections, and can set the number of measurements at intervals until the set number of deflections is reached or when the test data is lower than the initial value. The sample break number test interface 313b is configured to test the number of times that the plurality of samples have been completely broken, and may record the number of times that each sample has been bent at break or the number of samples that the plurality of samples have been bent at a set number of times.

Other programming languages can be used to program the computer control software, or other existing configuration software can be used to implement the control and communication functions.

The first connecting module 40 includes a sliding plate 41, a first sliding block connected to the sliding plate 41, and a sliding guide 42, wherein the sliding plate 41 is slidably connected to the sliding guide 42 through the first sliding block, and the number of the first sliding block and the sliding guide 42 is two.

The second connection module 50 includes a fixed plate 51, a connection plate vertically connected to the fixed plate 51, a second slider connected to the connection plate, and a linear rail 52, the connection plate is slidably connected to the linear rail 52 through the second slider, and the number of the second slider and the linear rail 52 is two.

The up-down sliding mode can be changed into the horizontal sliding mode, namely the vertical placement of the sliding plate and the fixed plate is changed into the horizontal placement. Through the equipment consisting of the structures, the fixation of the deflection point of each deflection and the stabilization of the deflection radius, the deflection stroke, the deflection frequency and the like can be stably and effectively realized, so that the repeatability and the reproducibility of the deflection process are ensured.

The rotation module 63 includes a transmission shaft 631 and a transmission wheel 632 connected to one side of the transmission shaft 631, wherein the transmission wheel 632 is connected to the transmission motor 80 through a transmission belt 70.

The eccentric adjustment module 64 includes an eccentric shaft 641 connected to the sliding connection rod 62, a connecting adjustment assembly 642 and an eccentric 643 respectively connected to the eccentric shaft 641, the eccentric 643 connected to the rotating module 63; the connecting adjustment assembly 642 has a threaded pair by which the connecting adjustment assembly 642 is connected to the eccentric shaft 641.

The eccentric wheel stroke adjustment can also be changed into other driving mechanisms which move linearly (the driving mechanisms are connected with the sliding plate), such as a stepping motor, a servo motor, an air cylinder and the like.

The workflow of the flexure testing unit 20 is:

as shown in fig. 1 and 5 to 7, first, the a and B ends of the copper foil material are fixed to the fixed plate 51 and the sliding plate 41 respectively (the material is formed into a U shape), and the distance between the sliding plate 41 and the fixed plate 51 can be changed by moving the fixed plate 51 back and forth along the linear rail 52, and the distance between the two plates is the deflection diameter of the copper foil material.

The connecting and adjusting assembly 642 is connected with the eccentric shaft 641 through a screw pair, and by rotating the screw pair of the connecting and adjusting assembly 642, the eccentric shaft 641 can move along the direction of the screw pair, so that the relative position of the center of the eccentric shaft 641 and the center of the eccentric wheel 643 is changed; when the eccentric shaft 641 and the eccentric wheel 643 are centered, the eccentricity of the eccentric shaft 641 is zero during the rotation process, and the sliding connecting rod 62 connected to the eccentric shaft 641 does not slide up and down; when the connecting adjusting assembly 642 is rotated, the center position of the eccentric shaft 641 is not coincident with the center position of the eccentric shaft 643, and the center points of the eccentric shaft 641 and the eccentric shaft 643 are offset, so that the eccentric shaft 641 is driven to perform non-circular motion when the eccentric shaft 643 rotates, and the sliding connecting rod 62 connected with the eccentric shaft 641 performs reciprocating motion with the center point of the eccentric shaft 643 as a center point, thereby driving the sliding plate 41 connected with the sliding connecting rod 62 to move up and down along the sliding guide rail 42, which is the deflection stroke of the copper foil material.

The transmission shaft 631 and the transmission wheel 632 are transmission mechanisms, and the up-and-down sliding speed of the sliding plate 41, which is the bending frequency, can be adjusted by adjusting the transmission speed of the transmission motor 80.

The utility model discloses an use flow does:

firstly, after the operation parameters (radius, stroke, frequency, etc.) of the deflection test unit 20 are set, the measurement recording unit 30 is started, and the test process can be started after the parameters are set according to the actual situation. And when the deflection times of the deflection-resistant instrument reach a set value or the sample is completely broken, the instrument automatically stops running, and a data recording file and a related curve icon are generated.

The data recording can also adopt a mechanical data printing type.

The utility model discloses an automation, the standardization of flexion action each time, repeatability, reproducibility through measurement mode each time for the measurement process automation of copper foil material, test procedure are standardized, the result is judged intellectuality, thereby reduces human error and improves measurement of efficiency. The bending resistance testing device adopts a measurement recording unit 30, namely a data acquisition and monitoring system, integrates two testing processes of a bending testing unit 20 and a multi-channel resistance measuring instrument 32, and realizes automation, standardization and intellectualization of bending resistance testing of a copper foil material by testing a plurality of samples in real time, acquiring numerical values of the plurality of samples, recording and analyzing. The two flat plates are adopted and the relative displacement of the two flat plates is utilized to realize the adjustment of the deflection radius and the deflection point and the deflection radius of the effective repeated operation process. The adjustment of the deflection stroke and the stabilization of the effective repeated operation process are realized by an eccentric wheel mode.

The above examples only represent several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the present invention. It should be noted that those skilled in the art will recognize that the invention may be practiced without departing from its spirit or scope. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A flex endurant test system, comprising: the device comprises a flexural testing unit and a measurement recording unit; the deflection test unit comprises a first connecting module, a second connecting module arranged at an interval with the first connecting module, and an eccentric transmission device fixedly connected with the first connecting module; the eccentric transmission device comprises a fixed rod connected with the first connecting module, a sliding connecting rod, a rotating module and an eccentric adjusting module connected with the sliding connecting rod and the rotating module; one end of the sliding connecting rod is pivoted with the fixed rod, and the other end of the sliding connecting rod is pivoted with the eccentric adjusting module; the measuring and recording unit comprises a computer central control module and a multi-channel resistance measuring instrument.

2. The flex endurant test system of claim 1, wherein: the flexible testing device further comprises a case, the case further comprises a first case body and a second case body, the flexible testing unit is arranged on the first case body, and the measuring and recording unit is arranged on the second case body.

3. The flex endurant test system of claim 2, wherein: the first box body comprises an upper box door and a lower box door arranged below the upper box door, a first visual window is arranged on the upper box door, and a second visual window is arranged on one side of the case corresponding to the deflection test unit.

4. The flex endurant test system of claim 1, wherein: the first connecting module comprises a sliding plate, a first sliding block and a sliding guide rail, wherein the first sliding block is connected with the sliding plate, the sliding plate is connected with the sliding guide rail in a sliding mode through the first sliding block, and the number of the first sliding block and the number of the sliding guide rail are two.

5. The flex endurant test system of claim 1, wherein: the second connecting module comprises a fixed plate, a connecting plate vertically connected with the fixed plate, a second sliding block connected with the connecting plate, and a line rail, the connecting plate is connected with the line rail through the second sliding block in a sliding mode, and the number of the second sliding block and the number of the line rail are two.

6. The flex endurant test system of claim 1, wherein: the rotating module comprises a transmission shaft and a transmission wheel connected to one side of the transmission shaft, and the transmission wheel is connected to a transmission motor through a transmission belt.

7. The flex endurant test system of claim 1, wherein: the eccentric adjusting module comprises an eccentric shaft connected with the sliding connecting rod, a connecting and adjusting assembly and an eccentric wheel, wherein the connecting and adjusting assembly and the eccentric wheel are respectively connected with the eccentric shaft; the connecting and adjusting assembly is provided with a thread pair, and the connecting and adjusting assembly is connected to the eccentric shaft through the thread pair.

8. The flex endurant test system of claim 1, wherein: the computer central control module comprises a display screen, a host connected with the display screen and a human-computer operation interface displayed on the display screen; the human-computer operation interface also comprises a sample resistance testing interface and a sample breaking frequency testing interface.