CN211453888U

CN211453888U - Voltage internal resistance test machine

Info

Publication number: CN211453888U
Application number: CN201922224687.8U
Authority: CN
Inventors: 苗文凭; 陈续虎; 邹盛勇; 孙凯; 黄俊杰
Original assignee: Guangdong Zhengye Technology Co Ltd
Current assignee: Guangdong Zhengye Technology Co Ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-09-08
Anticipated expiration: 2029-12-12

Abstract

The utility model discloses an internal resistance of voltage test machine, include: a loading and unloading platform; the voltage and internal resistance testing mechanism is positioned at the rear end of the working position of the feeding and discharging mechanism and is used for carrying out voltage and internal resistance testing on the battery cell pushed by the feeding and discharging mechanism; the code scanning mechanism is arranged at the working position of the feeding and discharging mechanism and is used for scanning the codes of the battery cells; and the temperature testing mechanism is arranged at the working position of the feeding and discharging mechanism and is used for testing the temperature of the battery cell. The voltage and internal resistance testing machine not only improves the testing efficiency of the voltage and internal resistance of the cell, and has stable testing data, low cost and small occupied area.

Description

Voltage internal resistance test machine

Technical Field

The utility model relates to an electric core test technical field especially relates to an internal resistance of voltage test machine.

Background

In the prior art, the test of the battery cell is manually detected, the test data is unstable due to human factors, and the efficiency is low in the process of manually testing the voltage and the internal resistance; the full-automatic voltage and internal resistance tester has high cost and large floor area; each part of detection is carried out on different equipment, and the taking, the placing and the clamping of the battery cell are complicated; the battery cells with different specifications need to be tested on different types of components, the replacement of equipment components is difficult, one-key type replacement cannot be realized, and the type replacement speed is slow; the equipment has no insulation protection, multiple safety protection mechanisms such as physical electricity prevention and software alarm, and is not safe enough.

In summary, how to effectively solve the problems of low efficiency and the like in the process of manually testing the voltage and the internal resistance is a problem which needs to be solved urgently by those skilled in the art at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a voltage internal resistance test machine, this voltage internal resistance test machine have not only improved electric core voltage internal resistance test efficiency, and test data is more stable, and still the cost is lower, and area is less.

In order to solve the technical problem, the utility model provides a following technical scheme:

a voltage internal resistance testing machine includes:

a loading and unloading platform;

the feeding and discharging mechanism is provided with a material waiting position and a working position, and can switch the position of the battery cell on the tray between the material waiting position and the working position,

the voltage internal resistance testing mechanism is positioned at the rear end of the working position of the feeding and discharging mechanism and is used for testing the voltage internal resistance of the battery cell pushed by the feeding and discharging mechanism;

the code scanning mechanism is arranged at the working position of the feeding and discharging mechanism and is used for scanning the codes of the battery cells;

and the temperature testing mechanism is arranged at the working position of the feeding and discharging mechanism and is used for testing the temperature of the battery cell.

Preferably, voltage internal resistance accredited testing organization includes the test frame, is fixed in model change motor on the test frame, install in on the test frame guide rail and through model change motor drive's mount pad, install in elevator motor and the air cylinder that pushes down, the connecting portion at the mount pad back connect in the first guiding hole of mount pad and through elevator motor drive's layer board, connecting portion install in mount pad second guiding hole just passes through push down air cylinder driven probe subassembly, the interval between two probe bodies can be adjusted in every group probe of probe subassembly.

Preferably, the probe assembly includes a fixed plate connected to the down-pressing cylinder, a spacing adjustment motor mounted on the fixed plate, a movable plate mounted in a chute of the fixed plate and driven by the spacing adjustment motor to move, and a plurality of sets of probes.

Preferably, the device further comprises a center distance adjusting mechanism for adjusting the center distance among the plurality of groups of probes.

Preferably, the number of the probes is four, wherein the left probe bodies of the first group of probes are fixed on the fixing plate, the right probe bodies of the first group of probes are fixed on the movable plate, and the center distance adjusting mechanism comprises a first center distance adjusting assembly and a second center distance adjusting assembly, the first center distance adjusting assembly is mounted on the movable plate and used for adjusting the left probe bodies of the rest groups of probes, and the second center distance adjusting assembly is mounted on the fixing plate and used for adjusting the right probe bodies of each group of probes.

Preferably, the first center distance adjusting assembly comprises a first screw motor, a first vertical rail and a first cross bar which are fixed on the movable plate, a first sliding plate which is mounted on the first vertical rail, a first transverse rail which is mounted on the first sliding plate, a first main slider and a first slave slider which are mounted on the first transverse rail, and a first fixed block which is fixed on the movable plate, wherein the first main slider is connected with the first screw motor, the first main slider, the first slave slider and the first fixed block are connected to three connection points of the first cross bar through connecting rods, and the three connection points of the first cross bar are respectively connected with left probe bodies of the second group of probes, the third group of probes and the fourth group of probes;

the second center distance adjusting assembly comprises a second screw motor, a second vertical rail, a second cross rod, a second sliding plate, a second transverse rail, a second main sliding block, a second auxiliary sliding block and a second fixed block, wherein the second screw motor, the second vertical rail and the second cross rod are fixed on the fixing plate, the second sliding plate is installed on the second vertical rail, the second transverse rail is installed on the second sliding plate, the second main sliding block and the second auxiliary sliding block are installed on the second transverse rail, and the second fixed block is fixed on the movable plate.

Preferably, the feeding and discharging mechanism comprises an upper layer slide way, a lower layer slide way, an upper layer fixed platform arranged in the upper layer slide way, a lifting platform arranged in the lower layer slide way and capable of descending and passing through the lower space of the upper layer fixed platform, a lifting motor for driving the upper layer fixed platform to move, and a lifting cylinder for driving the lifting platform to lift.

Preferably, the upper layer fixed platform and the liftable platform are provided with fixed limit blocks for limiting the positions of two sides of the tray, movable limit blocks matched with the fixed limit blocks and two adjusting blocks for limiting the positions of two sides of the tray;

and the upper-layer fixing platform of the feeding and discharging mechanism and the lifting platform are provided with prompters for prompting whether the battery cell is qualified or not.

Preferably, sweep a yard mechanism and include the support, install in on the support and with the lead screw that the guided way is parallel, with driving motor that the lead screw is connected, install in on the support guided way and through the nut with the alignment jig that the lead screw is connected, through the gimbal mount install in sweep a yard rifle on the alignment jig.

Preferably, the tray is provided with a plurality of U-shaped grooves distributed in parallel, and the tab heads of the battery cores can extend out of the openings of the U-shaped grooves.

The utility model provides an internal resistance of voltage test machine, include last unloading platform, business turn over material mechanism, internal resistance of voltage accredited testing organization, sweep ink recorder structure and temperature accredited testing organization. The loading and unloading platform is not only a loading platform, but also a tray on the loading and unloading platform. Specifically speaking, the battery is placed in the tray, and battery two-dimensional code or bar code are up, and the tray supplied materials, the tray is piled up and is placed on last unloading platform, and operating personnel gets the tray from last unloading platform, puts into the tool of business turn over material mechanism with whole tray that is equipped with electric core from treating the material level, accomplishes the material loading. After the test, electric core returns from the work position and treats the material level, and operating personnel takes off the tray from business turn over material mechanism, places at last unloading platform, takes off the yields and sorts out the defective products from the tray to put into and correspond NG box, accomplish the unloading. The feeding and discharging mechanism is provided with a material waiting position and a working position, the tray is used for feeding and discharging materials from the material waiting position, and the cell temperature test, the code scanning and the cell voltage and internal resistance test are completed at the working position. The feeding and discharging mechanism transfers the position of the battery cell on the tray which can be switched between the material waiting position and the working position, and the tray position transfer is completed.

And the voltage internal resistance testing mechanism is positioned at the rear end of the working position of the feeding and discharging mechanism and is used for testing the voltage internal resistance of the battery cell pushed by the feeding and discharging mechanism. And the code scanning mechanism is arranged at the working position of the feeding and discharging mechanism and is used for scanning the codes of the battery cell. And the temperature testing mechanism is arranged at the working position of the feeding and discharging mechanism and is used for testing the temperature of the battery cell. Meanwhile, the voltage and internal resistance tester can bind the test data with the electrical core bar code information and upload the test data to an MES system or store the test data locally.

The utility model provides a voltage internal resistance test machine, the efficiency is higher in the test voltage internal resistance process, is not influenced by human factor, and test data is stable; moreover, through manual feeding and blanking, compared with a full-automatic voltage and internal resistance tester, the voltage and internal resistance tester has lower cost and small occupied area, and is a good choice for old factories and factories with narrow spaces, so that the testing efficiency can be improved, and the occupied area and the input cost can be reduced; the equipment has insulation protection, multiple safety protection mechanisms such as physical protection and software alarm, and is safe; when the test is carried out on the feeding and discharging mechanism, all the tests can be completed only by once feeding and discharging, the clamping procedure is simplified, the time is saved, and the working efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an internal structural layout diagram of a voltage internal resistance tester provided in an embodiment of the present invention;

FIG. 2 is a diagram of the appearance of the voltage internal resistance tester;

FIG. 3 is an overview of the voltage internal resistance test;

FIG. 4a is a schematic structural diagram of a voltage internal resistance testing mechanism;

FIG. 4b is another view of the voltage internal resistance test mechanism;

FIG. 5 is a schematic structural view of a feeding and discharging mechanism;

FIG. 6 is a schematic structural diagram of a code scanning mechanism;

FIG. 7a is a reverse side view of the tray;

FIG. 7b is a front view of the tray;

figure 7c is an isometric view of the tray.

The drawings are numbered as follows:

the device comprises an insulating mat 1, a feeding and discharging mechanism 2, a temperature testing mechanism 3, a voltage internal resistance testing mechanism 4, a code scanning mechanism 5, a display 6, an alarm lamp 7, a touch screen 8, a safety light curtain 9, a feeding and discharging platform 10, a keyboard 11, a tray 12, an upper layer fixing platform 21, a lifting platform 22, a moving motor 23, a lifting cylinder 24, a prompter 25, an adjusting block 26, a fixing limiting block 27, a movable limiting block 28, an interval adjusting motor 41, a second screw motor 42, a supporting plate 43, a cushion block 44, a probe assembly 45, a first screw motor 46, a lifting motor 47, a pressing cylinder 48, a model changing motor 49, a support 51, a driving motor 52, a screw rod 53, a universal frame 54 and a code scanning gun 55.

Detailed Description

The core of the utility model is to provide a voltage internal resistance test machine, this voltage internal resistance test machine has not only improved electric core voltage internal resistance test efficiency, and test data is more stable, and still the cost is lower, and area is less.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 7, fig. 1 is a layout diagram of an internal structure of a voltage internal resistance tester according to an embodiment of the present invention; FIG. 2 is a diagram of the appearance of the voltage internal resistance tester; FIG. 3 is an overview of the voltage internal resistance test; FIG. 4a is a schematic structural diagram of a voltage internal resistance testing mechanism; FIG. 4b is another view of the voltage internal resistance test mechanism; FIG. 5 is a schematic structural view of a feeding and discharging mechanism; FIG. 6 is a schematic structural diagram of a code scanning mechanism; FIG. 7a is a reverse side view of the tray; FIG. 7b is a front view of the tray; figure 7c is an isometric view of the tray.

In a specific implementation manner, the utility model provides a voltage internal resistance test machine, include:

a loading and unloading platform 10;

the feeding and discharging mechanism 2 is provided with a material waiting position and a working position, and can switch the position of the battery cell on the tray 12 between the material waiting position and the working position,

the voltage internal resistance testing mechanism 4 is positioned at the rear end of the working position of the feeding and discharging mechanism 2 and is used for testing the voltage internal resistance of the battery cell pushed by the feeding and discharging mechanism 2;

the code scanning mechanism 5 is arranged at the working position of the feeding and discharging mechanism 2 and is used for scanning codes of the battery cells;

and the temperature testing mechanism 3 is arranged at the working position of the feeding and discharging mechanism 2 and is used for testing the temperature of the battery cell.

In the structure, the voltage internal resistance testing machine comprises a feeding and discharging platform 10, a feeding and discharging mechanism 2, a voltage internal resistance testing mechanism 4, a code scanning mechanism 5 and a temperature testing mechanism 3.

The loading and unloading platform 10 is not only a loading platform, but also a loading and unloading platform for loading and unloading the tray 12 on the loading and unloading platform 10. Specifically speaking, the battery is placed in tray 12, and battery two-dimensional code or bar code are up, and tray 12 comes the material, and tray 12 piles up to be placed on last unloading platform 10, and operating personnel gets tray 12 from last unloading platform 10, puts into the whole tray 12 that is equipped with electric core from waiting the material level in the tool of business turn over material mechanism 2, accomplishes the material loading.

After the test, electric core returns from the work position and treats the material level, and operating personnel takes off tray 12 from business turn over material mechanism 2, places at last unloading platform 10, takes the yields and sorts out the defective products from tray 12 to put into and correspond NG box, accomplish the unloading.

The feeding and discharging mechanism 2 is provided with a material waiting position and a working position, the tray 12 is used for feeding and discharging materials from the material waiting position, and the cell temperature test, the code scanning test and the cell voltage internal resistance test are completed at the working position. The feeding and discharging mechanism 2 can switch the position of the battery cell on the tray 12 between the material waiting position and the working position to complete the position transfer of the tray 12.

And the voltage internal resistance testing mechanism 4 is positioned at the rear end of the working position of the feeding and discharging mechanism 2 and is used for testing the voltage internal resistance of the battery cell pushed by the feeding and discharging mechanism 2. Specifically, the tab can be placed on the supporting plate 43, the testing cylinder presses down, the upper probe presses the tab, and the voltage and internal resistance test is performed.

And the code scanning mechanism 5 is arranged at the working position of the feeding and discharging mechanism 2 and is used for scanning the codes of the battery cells. The battery can be moved and code-scanned by using the code-scanning gun 55.

And the temperature testing mechanism 3 is arranged at the working position of the feeding and discharging mechanism 2 and is used for testing the temperature of the battery cell. The temperature of the surface of the battery can be measured by using an infrared thermometer.

Meanwhile, the voltage and internal resistance tester can bind the test data with the electrical core bar code information and upload the test data to an MES system or store the test data locally.

Because the battery is conductive, the insulating bedding 1 is laid on the working surface where the feeding and discharging mechanism 2, the voltage internal resistance testing mechanism 4, the code scanning mechanism 5 and the temperature testing mechanism 3 are installed, so that the insulating bedding has an insulating protection effect, and the safety problem of a pure manual machine testing machine can be greatly reduced.

And a shell is arranged outside the voltage and internal resistance testing machine and used for protecting each mechanism in the shell. Each mechanism is connected with a processor, such as a PLC processor, and a touch screen 8 is arranged on the shell, so that each mechanism can be controlled to automatically operate to perform human-computer interaction. The shell is also provided with a display 6, the running state and the result of the system can be observed in real time, and the display 6 is connected with a keyboard 11, so that the operation can be carried out. An alarm lamp 7 is arranged above the shell, and the alarm lamp 7 can be a three-color alarm lamp 7, for example, a green lamp is turned on in a normal operation state of the system; when the system is in fault or is short of materials, the alarm lamp 7 is changed from normal green to red, and alarm and early warning are carried out; the yellow lamp is on in the standby state. The shell is also provided with a safety light curtain 9 for safety test, and when a fault occurs, the safety light curtain is standby to process and protect the system.

The utility model provides a voltage internal resistance test machine, the efficiency is higher in the test voltage internal resistance process, is not influenced by human factor, and test data is stable; moreover, through manual feeding and blanking, compared with a full-automatic voltage and internal resistance tester, the voltage and internal resistance tester has lower cost and small occupied area, and is a good choice for old factories and factories with narrow spaces, so that the testing efficiency can be improved, and the occupied area and the input cost can be reduced; the equipment has insulation protection, multiple safety protection mechanisms such as physical protection and software alarm, and is safe; when the test is carried out on the feeding and discharging mechanism 2, all the tests can be completed only by once feeding and discharging, the clamping procedure is simplified, the time is saved, and the working efficiency is improved.

On the basis of the above specific embodiment, the voltage and internal resistance testing mechanism 4 includes a testing rack, a model changing motor 49 fixed on the testing rack, a mounting base installed on a guide rail of the testing rack and driven by the model changing motor 49, a lifting motor 47 and a pressing cylinder 48 installed on the back of the mounting base, a supporting plate 43 whose connecting portion is connected in a first guide hole of the mounting base and driven by the lifting motor 47, and a probe assembly 45 whose connecting portion is installed in a second guide hole of the mounting base and driven by the pressing cylinder 48, wherein the distance between two probe bodies in each group of probes of the probe assembly 45 can be adjusted.

In the structure, the voltage internal resistance testing mechanism 4 comprises a testing rack, a model changing motor 49, a mounting seat, a lifting motor 47, a pressing cylinder 48, a supporting plate 43 and a probe assembly 45, the model changing motor 49 is fixed on the testing rack, the mounting seat is installed on a guide rail of the testing rack, the mounting seat is connected with the model changing motor 49, the model changing motor 49 can drive the mounting seat to move, and when the battery cell is in a model changing state, the driving model changing motor 49 is used for adjusting the position of the mounting seat so as to be suitable for the battery cells in different positions and different specifications.

Lifting motor 47 installs on the mount pad, and layer board 43 installs in the first guiding hole department of mount pad, has cushion 44 on the layer board 43, and the connecting portion and the lifting motor 47 of layer board 43 are connected, and lifting motor 47 can drive layer board 43 and reciprocate to this height of adjusting layer board 43 is with being applicable to the not electric core of co-altitude.

The air cylinder 48 is installed on the mounting base, and probe assembly 45 is installed in the second guiding hole department of mounting base, and the connecting portion of probe assembly 45 is connected with air cylinder 48 down, and air cylinder 48 down can drive probe assembly 45 and reciprocate to this height of adjusting the probe, with the electric core that is suitable for the not co-altitude of test.

The distance between two probe bodies in every group probe of above-mentioned probe subassembly 45 can be adjusted, indicates that every group probe includes two probe bodies, and the distance between two probe bodies can be adjusted to test the electric core of different specifications, need not change equipment part, realize a key retooling, retooling speed is very fast, convenient to use.

Further optimizing the above technical solution, the probe assembly 45 includes a fixed plate connected to the down-pressure cylinder 48, a spacing adjustment motor 41 installed on the fixed plate, a movable plate installed in a sliding slot of the fixed plate and driven to move by the spacing adjustment motor 41, and a plurality of sets of probes.

In the above structure, the probe assembly 45 includes a fixing plate, a space adjusting motor 41, a movable plate and a plurality of sets of probes, the fixing plate is connected with a down-pressing cylinder 48, the space adjusting motor 41 is installed on the fixing plate, and the down-pressing cylinder 48 can drive the fixing plate and the fixing plate to move.

Meanwhile, each group of probes comprises two probe bodies, and the pressing cylinder 48 drives the fixing plate to move to adjust the heights of the two probe bodies.

The fly leaf is installed in the spout of fixed plate, can drive the fly leaf through interval adjustment motor 41 and remove, can drive to connect and remove about the probe body of fly leaf to this can adjust the distance between two probe bodies, thereby detect the electric core of different specifications, need not change equipment unit, realizes a key retooling, and the retooling speed is very fast.

The technical scheme is further optimized, and the probe clamp further comprises a center distance adjusting mechanism, wherein the center distance adjusting mechanism can adjust the center distances among the multiple groups of probes, so that the probe clamp is suitable for battery cores of different models, is more convenient to use, and is wider in application range.

The number of probes is not limited, and for ease of understanding, four sets of probes are used as an example for illustration.

When the number of the probes is four, the probes are a first group of probes, a second group of probes, a third group of probes and a fourth group of probes from left to right.

The left probe body of the first group of probes is fixed on the fixing plate, and the left and right positions of the left probe body cannot move; the right probe body of the first group of probes is fixed on the movable plate, and the right probe body of the first group of probes can move.

The center distance adjusting mechanism comprises a first center distance adjusting assembly and a second center distance adjusting assembly, the first center distance adjusting assembly is installed on the movable plate and used for adjusting the left probe bodies of the rest groups of probes, and the second center distance adjusting assembly is installed on the fixed plate and used for adjusting the right probe bodies of each group of probes. The left probe body and the right probe body of the second group of probes, the third group of probes and the fourth group of probes are respectively adjusted through the first center distance adjusting assembly and the second center distance adjusting assembly, so that the center distances among the different groups of probes are adjusted, the structure is simple, and the adjustment is convenient.

Specifically, the first center distance adjusting assembly comprises a first screw motor 46 fixed on the movable plate, a first vertical rail and a first cross rod, a first sliding plate installed on the first vertical rail, a first transverse rail installed on the first sliding plate, a first main slider and a first auxiliary slider installed on the first transverse rail, and a first fixed block fixed on the movable plate, wherein the first main slider is connected with the first screw motor 46, the first main slider, the first auxiliary slider and the first fixed block are connected to three connection points of the first cross rod through connecting rods, and three connection points of the first cross rod are respectively connected with the left probe bodies of the second group of probes, the third group of probes and the fourth group of probes.

In the above structure, the first center distance adjusting assembly includes a first screw motor 46, a first vertical rail, a first cross bar, a first sliding plate, a first transverse rail, a first main slider, a first auxiliary slider and a first fixed block,

the first screw motor 46, the first vertical rail and the first cross bar are fixed on the movable plate, the first transverse rail is installed on the first sliding plate, and the first screw motor 46, the first cross bar and the first transverse rail are arranged in the same direction along the horizontal direction.

The first sliding plate is installed on a first vertical rail, the first vertical rail is arranged along the vertical direction, and the first sliding plate can move up and down along the first vertical rail.

The first main sliding block and the first auxiliary sliding block are arranged on the first transverse track, and the first main sliding block and the first auxiliary sliding block move left and right along the first transverse track. The first fixed block is fixed on the movable plate and cannot move.

The first main sliding block is connected with the first screw motor 46, specifically, a nut is fixed on the first main sliding block, the nut is matched with a screw of the first screw motor 46, the screw of the first screw motor 46 rotates, and the nut is driven to move, so that the first main sliding block is driven to move left and right along the first transverse track.

First main slider, first follow slider and first fixed block pass through the connecting rod and connect on the three tie point of first horizontal pole, constitute parallelogram mechanism between first main slider, first follow slider, first fixed block, first horizontal track, first horizontal pole, the connecting rod, and first main slider moves about along first horizontal track, drives first follow slider and also moves about along first horizontal track, drives first sliding plate simultaneously and reciprocates along first vertical rail.

The distance between the three connecting points on the first cross bar can be adjusted due to the fact that the moving speed of the first main slide block is larger than that of the first auxiliary slide block.

Meanwhile, three connecting points of the first cross rod are respectively connected with the left probe bodies of the second group of probes, the third group of probes and the fourth group of probes through the connecting piece, so that the distance between the left probe bodies of the second group of probes, the third group of probes and the fourth group of probes can be adjusted, namely, the adjustment of the distance between the left probe bodies of the second group of probes, the third group of probes and the fourth group of probes is realized, the adjustment of the center distance between the probes in different groups is realized, and the control is convenient.

The second center distance adjusting assembly comprises a second screw motor 42 fixed on the fixed plate, a second vertical rail and a second cross rod, a second sliding plate installed on the second vertical rail, a second transverse rail installed on the second sliding plate, a second main sliding block and a second slave sliding block installed on the second transverse rail, and a second fixed block fixed on the movable plate, wherein the second main sliding block is connected with the second screw motor 42, the second main sliding block, the second slave sliding block and the second fixed block are connected to three connection points of the second cross rod through connecting rods, and the three connection points of the second cross rod are respectively connected with the fourth group of probes, the third group of probes and the right probe body of the second group of probes.

The second center distance adjusting assembly is used for adjusting the distance between the right probe bodies of the second group of probes, the third group of probes and the fourth group of probes, and the first center distance adjusting assembly and the second center distance adjusting assembly have similar structures and principles, and the specific structure of the second center distance adjusting assembly can refer to the embodiment of the first center distance adjusting assembly, which is not further described herein.

In another more reliable embodiment, on the basis of any one of the above embodiments, the feeding and discharging mechanism 2 includes an upper layer slide way, a lower layer slide way, an upper layer fixed platform 21 installed in the upper layer slide way, a liftable platform 22 installed in the lower layer slide way and capable of descending and passing through the lower space of the upper layer fixed platform 21, a moving motor 23 for driving the upper layer fixed platform 21 and the liftable platform 22 to move, and a lifting cylinder 24 for driving the liftable platform 22 to ascend and descend.

In the structure, the feeding and discharging mechanism 2 comprises an upper layer slide way, a lower layer slide way, an upper layer fixed platform 21, a moving motor 23, a lifting platform 22 and a lifting cylinder 24, wherein the upper layer fixed platform 21 is installed in the upper layer slide way, the lifting platform 22 is installed in the lower layer slide way, the lifting cylinder 24 can drive the lifting platform 22 to ascend and descend, and the lifting platform 22 can penetrate through the space below the upper layer fixed platform 21 after descending. The number of the moving motors 23 is two, and the two moving motors respectively drive the upper layer fixed platform 21 and the liftable platform 22 to move along the upper layer slide way and the lower layer slide way.

The feeding and discharging mechanism 2 has a double-layer structure, a platform is positioned at the front end material waiting position, and is used for feeding and discharging the battery cell; the other platform is positioned at the tail end working position, voltage and internal resistance testing, code scanning and temperature testing are carried out on the battery cell, two layers work alternately, the cycle period is shortened, and the efficiency is high.

In order to further optimize the above technical solution, the upper layer fixed platform 21 and the liftable platform 22 are provided with a fixed limit block 27, a movable limit block 28 and two adjusting blocks 26, the fixed limit block 27 is arranged at one side of the upper layer fixed platform 21 and the liftable platform 22 to limit one side of the tray 12, the movable limit block 28 is arranged at the opposite side of the fixed limit block 27, the movable limit block 28 can move, the movable limit block 28 is matched with the fixed limit block 27 to clamp two sides of the tray 12, so as to limit two sides of the tray 12.

The two adjusting blocks 26 are respectively arranged on two sides of the upper layer fixing platform 21 and the lifting platform 22, the adjusting blocks 26 can be arranged in the strip holes, the adjusting blocks 26 can move in the strip holes, and the left and right positions of the adjusting blocks 26 can be adjusted; the two sides of the tray 12 are clamped between the two adjusting blocks 26, so that the positions of the two sides of the tray 12 are limited, the position of the tray 12 is positioned, the test position of the battery cell is accurately aligned, and the accuracy of testing the internal resistance of the voltage, scanning the code and testing the temperature is ensured.

Prompting devices 25 are arranged on the upper-layer fixing platform 21 and the liftable platform 22 of the feeding and discharging mechanism 2, specifically, each testing position is provided with a prompting device 25, and the prompting device 25 at the position of a defective product battery core is lighted to prompt and alarm. After the test, tray 12 moves back to the last unloading platform 10, and the light suggestion operating personnel takes the defective products away, sorts the defective products comparatively accurately, fast.

On the basis of the above embodiments, the code scanning mechanism 5 includes a bracket 51, a lead screw 53 mounted on the bracket 51 and parallel to the guide rail, a driving motor 52 connected to the lead screw 53, an adjusting bracket mounted on the guide rail of the bracket 51 and connected to the lead screw 53 through a nut, and a code scanning gun 55 mounted on the adjusting bracket through a universal bracket 54.

In the structure, the code scanning mechanism 5 comprises a bracket 51, a screw 53, a driving motor 52, an adjusting bracket and a code scanning gun 55, wherein the bracket 51 is provided with a guide rail, the screw 53 is arranged on the bracket 51, and the screw 53 is parallel to the guide rail. The driving motor 52 is connected to the lead screw 53 to drive the lead screw 53 to rotate.

The adjusting bracket is installed on the guided way of support 51, and the bottom of adjusting bracket has the nut, and the nut is connected with lead screw 53, and lead screw 53 rotates the drive nut and removes to drive the adjusting bracket and remove along the guided way, sweep a yard rifle 55 and install on the adjusting bracket, according to electric core position, adjust the position of sweeping yard rifle 55. Sweep a yard rifle 55 and install on the alignment jig through gimbal 54, can adjust the position and the angle of sweeping a yard rifle 55 to sweep a yard to the two-dimensional code of electric core or bar code accuracy.

For each of the above embodiments, under the condition that other components are not changed, the tray 12 is provided with a plurality of U-shaped grooves distributed in parallel, the tab heads of the battery cells can extend out from the openings of the U-shaped grooves, and the tab heads can be exposed, so that the tabs can be placed on the supporting plate 43, and the voltage and internal resistance test is realized.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

It is right above the utility model provides an internal resistance to voltage test machine has carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A voltage internal resistance testing machine is characterized by comprising:

a loading and unloading platform (10);

the feeding and discharging mechanism (2) is provided with a material waiting position and a working position, and can switch the position of the battery cell on the tray (12) between the material waiting position and the working position,

the voltage internal resistance testing mechanism (4) is positioned at the rear end of the working position of the feeding and discharging mechanism (2) and is used for carrying out voltage internal resistance testing on the battery cell pushed by the feeding and discharging mechanism (2);

the code scanning mechanism (5) is arranged at the working position of the feeding and discharging mechanism (2) and is used for scanning the codes of the battery cells;

and the temperature testing mechanism (3) is arranged at the working position of the feeding and discharging mechanism (2) and is used for testing the temperature of the battery cell.

2. The internal resistance to voltage testing machine of claim 1, wherein the internal resistance to voltage testing mechanism (4) comprises a testing rack, a model changing motor (49) fixed on the testing rack, a mounting seat mounted on a guide rail of the testing rack and driven by the model changing motor (49), a lifting motor (47) and a pressing cylinder (48) mounted on the back of the mounting seat, a supporting plate (43) with a connecting part connected in a first guide hole of the mounting seat and driven by the lifting motor (47), and a probe assembly (45) with a connecting part mounted in a second guide hole of the mounting seat and driven by the pressing cylinder (48), and the distance between two probe bodies in each group of probes of the probe assembly (45) can be adjusted.

3. The internal resistance to voltage tester as claimed in claim 2, wherein the probe assembly (45) comprises a fixed plate connected to the down-pressure cylinder (48), a spacing adjustment motor (41) mounted on the fixed plate, a movable plate mounted in a sliding slot of the fixed plate and driven to move by the spacing adjustment motor (41), and a plurality of sets of probes.

4. The internal resistance to voltage testing machine according to claim 3, further comprising a center distance adjusting mechanism for adjusting a center distance between the plurality of sets of the probes.

5. The internal resistance to voltage tester as claimed in claim 4, wherein the number of the probes is four, wherein the left probe body of the first group of probes is fixed on the fixed plate, and the right probe body of the first group of probes is fixed on the movable plate, and the center distance adjusting mechanism comprises a first center distance adjusting assembly mounted on the movable plate for adjusting the left probe body of each remaining group of probes and a second center distance adjusting assembly mounted on the fixed plate for adjusting the right probe body of each group of probes.

6. The internal resistance to voltage tester as claimed in claim 5, wherein the first center distance adjusting assembly comprises a first screw motor (46) fixed on the movable plate, a first vertical rail and a first cross bar, a first sliding plate mounted on the first vertical rail, a first transverse rail mounted on the first sliding plate, a first main slider and a first slave slider mounted on the first transverse rail, and a first fixed block fixed on the movable plate, wherein the first main slider is connected to the first screw motor (46), the first main slider, the first slave slider and the first fixed block are connected to three connection points of the first cross bar through connecting rods, and the three connection points of the first cross bar are respectively connected to left probes of the second group of probes, the third group of probes and the fourth group of probes;

the second center distance adjusting assembly comprises a second screw motor (42), a second vertical rail, a second cross rod, a second sliding plate, a second transverse rail, a second main sliding block, a second auxiliary sliding block and a second fixed block, wherein the second screw motor (42), the second vertical rail and the second cross rod are fixed on the fixing plate, the second sliding plate is installed on the second vertical rail, the second transverse rail is installed on the second sliding plate, the second main sliding block and the second auxiliary sliding block are installed on the second transverse rail, and the second fixed block is fixed on the movable plate.

7. The voltage internal resistance testing machine according to claim 1, wherein the feeding and discharging mechanism (2) comprises an upper layer slideway, a lower layer slideway, an upper layer fixed platform (21) installed in the upper layer slideway, a liftable platform (22) installed in the lower layer slideway and capable of descending to pass through a lower space of the upper layer fixed platform (21), a moving motor (23) for driving the upper layer fixed platform (21) and the liftable platform (22) to move, and a lifting cylinder (24) for driving the liftable platform (22) to ascend and descend.

8. The internal resistance to voltage tester as claimed in claim 7, wherein the upper layer fixed platform (21) and the liftable platform (22) are provided with fixed limit blocks (27) for limiting the positions of two sides of the tray (12), movable limit blocks (28) matched with the fixed limit blocks (27), and two adjusting blocks (26) for limiting the positions of two sides of the tray (12);

and a prompter (25) for prompting whether the battery cell is qualified is arranged on the upper layer fixing platform (21) of the feeding and discharging mechanism (2) and the liftable platform (22).

9. The internal resistance to voltage testing machine according to claim 1, wherein the code scanning mechanism (5) comprises a bracket (51), a lead screw (53) mounted on the bracket (51) and parallel to a guide rail, a driving motor (52) connected to the lead screw (53), an adjusting bracket mounted on the guide rail of the bracket (51) and connected to the lead screw (53) through a nut, and a code scanning gun (55) mounted on the adjusting bracket through a gimbal (54).

10. The machine for testing internal resistance to voltage according to claim 1, wherein the tray (12) has a plurality of U-shaped grooves distributed in parallel, and tab heads of the battery cells can protrude from openings of the U-shaped grooves.