CN111856291A - Battery OCV detection device and detection method thereof - Google Patents
Battery OCV detection device and detection method thereof Download PDFInfo
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- CN111856291A CN111856291A CN202010692814.1A CN202010692814A CN111856291A CN 111856291 A CN111856291 A CN 111856291A CN 202010692814 A CN202010692814 A CN 202010692814A CN 111856291 A CN111856291 A CN 111856291A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a battery OCV detection device and a detection method thereof, and belongs to the technical field of detection devices. The method comprises the following steps: the rack is used for mounting other components of the detection equipment; the roller line body unit is arranged in the rack; the roller line body unit comprises a driving part and a line body part, and the driving part is used for driving the transportation of the line body part; a battery tray placed inside the bobbin part; the battery tray is used for orderly arranging and collecting batteries; the battery tray is conveyed and transported under the action of the line body part; the detection unit is arranged in the rack; the belt pulling line unit is used for conveying the unqualified battery taken out from the clamping jaw assembly; and the test instrument platform is fixed on the rack. The invention realizes the whole mechanical intellectualization of the OCV of the battery by arranging the roller line unit, the X-axis assembly, the Z-axis assembly, the OCV detection assembly, the regulation and control assembly, the clamping jaw assembly and the pull strip line unit, thereby improving the detection efficiency.
Description
Technical Field
The invention belongs to the technical field of detection equipment, and particularly relates to battery OCV detection equipment and a detection method thereof.
Background
After the formation, capacity grading and code pasting of the lithium battery are completed, an Open Circuit Voltage (OCV) test needs to be performed on the lithium battery, and parameters such as a K value (the K value refers to the voltage drop of the battery in unit time and the self-discharge rate of the reactive lithium battery) and current, voltage and capacity of the square lithium battery can be obtained through the OCV test, so that the lithium battery with unqualified electrochemical parameters can be sorted out, and the quality of a battery finished product is ensured.
However, in the existing detection technology, the detection is basically completed by manually operating a detection device, and the efficiency is extremely low. The detection and the clamping are finished through an intelligent instrument in order to improve the detection efficiency, but the two operations are discontinuous, namely the detection is carried out after the clamping is finished, and unqualified or qualified products are separated through manpower after the detection, so that the stability and the test efficiency during the battery test are negatively influenced. And a lot of labor force is needed to be consumed in the connection process of all the working procedures, and the labor cost is increased.
Disclosure of Invention
The invention provides high-efficiency and high-continuity battery OCV detection equipment and a detection method thereof, aiming at solving the technical problems in the background technology.
The invention is realized by adopting the following technical scheme: a battery OCV detection device, comprising:
the rack is used for mounting other components of the detection equipment;
the roller line body unit is arranged in the rack; the roller line body unit comprises a driving part and a line body part, and the driving part is used for driving the transportation of the line body part;
a battery tray placed inside the bobbin part; the battery tray is used for orderly arranging and collecting batteries; the battery tray is conveyed and transported under the action of the line body part;
the detection unit is arranged in the rack; the method comprises the following steps: the device comprises an X-axis component, a Z-axis component, an OCV (oil control valve) detection component, a regulation and control component and a clamping jaw component; the X-axis component is arranged above the roller line unit, the Z-axis component is in transmission connection with the X-axis component, the OCV detection component is in transmission connection with the Z-axis component, the regulation and control component is in transmission connection with the OCV detection component, and the clamping jaw component is in transmission connection with the regulation and control component; the X-axis assembly and the Z-axis assembly are used for controlling the directions of the OCV detection assembly and the clamping jaw assembly, the OCV detection assembly is used for detecting the OCV parameters of the battery in the battery tray, and the clamping jaw assembly clamps the detected unqualified battery under the action of the regulation and control assembly; the distance between the CV detection assembly and the clamping jaw assembly is equal to the distance between two adjacent batteries;
The belt line drawing unit is arranged at the tail end of the roller line body unit and is arranged in a vertical direction with the roller line body unit; the belt pulling line unit is used for conveying the unqualified battery taken out of the clamping jaw assembly;
and the test instrument platform is fixed on the rack.
In a further embodiment, the OCV detection assembly includes: the test device comprises a Z-axis connecting plate, fixing plates symmetrically fixed on two sides of the Z-axis connecting plate, a mounting plate fixed between the fixing plates, and test probes arranged on the lower surface of the mounting plate; the test probe includes: a current probe, a voltage probe, and a temperature probe; and the connecting ends of the current probe, the voltage probe and the temperature probe are electrically connected with corresponding pins of the test instrument platform through conductor bundles.
In a further embodiment, the Z-axis assembly comprises: the device comprises a first driving motor, a worm wheel, a threaded rod and an upright post, wherein the worm is in transmission connection with an output shaft of the first driving motor; the bottom end of the stand column is fixedly connected with the OCV detection assembly;
The threaded rod adjusts the height of the bottom end of the stand column under the transmission of the worm wheel and the worm, namely, the threaded rod is used for controlling the height of the OCV detection assembly.
In a further embodiment, the adjustment assembly is disposed on one side of the upright, the adjustment assembly comprising:
the device comprises an air cylinder fixed on the outer side wall of an upright post, a bearing seat in transmission connection with a piston rod of the air cylinder, a guide rail which is fixed on the upright post along the length direction of the upright post and is at the same side as the air cylinder, and a sliding block which is fixed on the bearing seat and is close to one side of the upright post; the guide rail with the slider is interference fit, the connecting seat is used for fixing the clamping jaw assembly.
In a further embodiment, the jaw assembly comprises: the clamping jaw air cylinder, the mounting blocks symmetrically arranged on the clamping jaw air cylinder, the threaded guide rod inserted on the mounting blocks, the screw cap fixed at the top end of the threaded guide rod, the movable clamping jaw installed at the bottom end of the threaded guide rod, the spiral spring sleeved between the mounting blocks and the movable clamping jaw, the U-shaped photoelectric switch installed at the top of the mounting blocks, and the induction sheet vertically fixed on the movable clamping jaw,
When the extrusion force borne by the movable clamping jaw is too large, the movable clamping jaw moves upwards along the outer wall of the mounting block under the transmission of the threaded guide rod and the spring threads, so that the sensing piece moves into the U-shaped photoelectric switch, and the U-shaped photoelectric switch triggers the regulation and control assembly to stop moving downwards continuously.
In a further embodiment, a polyurethane stopper is fixed at the bottom end of the mounting block and used for preventing the battery from rubbing against the mounting block;
the bottom end of the movable clamping jaw is fixed with a plastic clamping block, and the plastic clamping block is used for directly clamping a battery;
the rear side wall of the mounting block is fixed with a slide rail along the vertical direction, the rear side wall of the movable clamping jaw is fixed with a guide block, and the guide block and the slide rail are in interference fit.
In a further embodiment, the pull tape thread unit comprises: the device comprises a plurality of vertical frames, mounting frames which are arranged on the vertical frames in a mirror image cross mode, a second driving motor fixed on one of the mounting frames, a transmission shaft in transmission connection with an output shaft of the second driving motor, first bevel gears fixed on the transmission shaft at equal intervals, second bevel gears correspondingly arranged in the vertical frames, and rollers in coaxial transmission connection with the second bevel gears; the rollers are rotatably arranged on the other mounting rack at the same time, and the first bevel gears are meshed with the corresponding second bevel gears;
The roller conveys the batteries taken out of the clamp under the transmission of the second driving motor, the first bevel gear, the second bevel gear and the transmission shaft.
In a further embodiment, the pull tape thread unit comprises: the device comprises a plurality of vertical frames, a conveying plate, a supporting plate, a transmission assembly and a plurality of pressing wheels, wherein the conveying plate stretches across the vertical frames and is fixedly connected with the vertical frames, the supporting plate is arranged on the conveying plate in a mirror symmetry mode, the transmission assembly is arranged on the lower surface of the supporting plate, and the pressing wheels are connected with the transmission assembly in a transmission mode and are arranged above the supporting plate in a transverse mode;
during the conveying process of the battery, the battery is placed on the conveying plate and positioned between the press wheels at the two sides, the press wheels rotate under the action of the transmission assembly, the rotation direction of the press wheels is consistent with the advancing direction of the battery, and the battery is directly pushed to move forwards by the rotation of the press wheels at the two sides;
and the rolling surface of the pinch roller is sleeved with a rubber ring.
In a further embodiment, the transmission assembly comprises: the pressing wheel is coaxially connected with the first belt wheel, the second belt wheel is positioned below the supporting plate, and the transmission belt is in transmission connection with the first belt wheel and the second belt wheel;
When the automatic transmission device is used, the rotation of the third driving motor drives the driving shaft to rotate, namely, the first belt wheel positioned on the driving shaft rotates, the second belt wheel is driven to rotate through the transmission belt, and the rotation of the second belt wheel drives the pressing wheel coaxially connected with the second belt wheel to rotate.
The detection method using the battery OCV detection device as described above specifically includes the steps of:
the method comprises the following steps that firstly, a battery tray provided with a battery to be detected is transported into a rack through a roller line unit, and a Z-axis component, an OCV (open control valve) detection component, a regulation and control component and a clamping jaw component are regulated to be above the battery at the head end of the battery tray by controlling an X-axis component;
step two, starting a first driving motor in the Z-axis assembly, driving a worm and a worm wheel to drive the worm, driving a threaded rod to rotate by the rotation of the worm wheel, and driving the upright column to move downwards due to the transmission because the upright column is in transmission connection with the threaded rod through internal and external threads, so that an OCV (open circuit voltage) detection assembly on the Z-axis assembly is in contact with a first battery and performs OCV (open circuit voltage) detection, and a detection result is displayed through a test instrument platform;
step three, if the first battery is qualified after detection, starting the X-axis assembly, driving other parts to approach to the second battery, and performing OCV detection until the batteries in the battery tray are detected in sequence; if the batteries which are unqualified in detection appear in the middle, executing the step four, and executing the step seven, wherein the detected batteries which are qualified are placed still;
Step four, assuming that the Nth battery is unqualified, firstly, regulating and controlling the Z-axis component to move forwards to enable the OCV detection component to be positioned above the (N + 1) th battery, and at the moment, enabling the clamping jaw component to be positioned above the Nth battery; adjusting and starting an air cylinder in the regulating and controlling assembly, pushing the clamping jaw assembly downwards by the air cylinder, clamping the Nth battery by the clamping jaw assembly, executing a fifth step if unqualified batteries do not exist between the Nth battery and the last battery, and executing a sixth step if unqualified batteries continuously exist between the Nth battery and the last battery;
step five, the clamping jaw assembly continuously clamps the Nth battery, the OCV detection is performed in a rhythm of sequential detection, finally the OCV detection assembly, the regulation and control assembly and the clamping jaw assembly are driven to the tail end of the belt pulling line unit under the transmission of the X axial assembly, the X axial assembly is continuously controlled to transfer the Nth battery on the clamping jaw to the belt pulling line unit, and the step seven is executed;
step six, assuming that the detected (N + M) th battery is unqualified, at the moment, the X-axis assembly firstly moves the clamping jaw clamping the Nth battery to the pull string unit to execute step seven, and then returns to the upper part of the battery tray to enable the OCV detection assembly to be positioned on the (N + M + 1) th battery to continue detection;
And seventhly, the belt line drawing unit transmits the detected unqualified battery to the outside of the frame, and the next process is started.
The invention has the beneficial effects that: 1) according to the invention, the roller line unit, the X-axis assembly, the Z-axis assembly, the OCV detection assembly, the regulation and control assembly, the clamping jaw assembly and the pull strip line unit are arranged to realize integral mechanical intellectualization for detecting the OCV of the battery, so that the detection efficiency is improved; 2) the detection mechanism and the clamping jaw mechanism are arranged together, so that the battery can be directly clamped and transferred through the clamping jaw mechanism after unqualified batteries appear, and the detection efficiency is further improved compared with the prior art that the battery is subjected to phase detection and then transferred through other procedures; 3) and unqualified batteries can be well conveyed, and management is facilitated.
Drawings
Fig. 1 is a schematic structural view of a battery OCV detection apparatus according to the present invention.
Fig. 2 is a schematic structural diagram of the detection unit of the present invention.
Fig. 3 is a schematic structural view of the OCV sensing assembly of the present invention.
Figure 4 is a schematic view of the jaw assembly of the present invention.
Fig. 5 is a schematic structural view of the pull string unit in embodiment 1.
Fig. 6 is a first structural diagram of the pull string unit in embodiment 2.
Fig. 7 is a schematic structural diagram ii of the pull string unit in embodiment 2.
Fig. 8 is a top view of the pull string unit of example 2.
Each of fig. 1 to 8 is labeled as: the device comprises a machine frame 1, a roller line unit 2, a battery tray 3, a battery 4, a detection unit 5, a pull line unit 6, a test instrument platform 7, an X-axis assembly 8, a Z-axis assembly 9, an OCV detection assembly 10, a regulation and control assembly 11, a clamping jaw assembly 12, a vertical frame 601, a mounting frame 602, a transmission shaft 603, a first bevel gear 604, a second bevel gear 605, a roller 606, a third driving motor 607, a support plate 608, a pinch roller 609, a transmission belt 610, a driving shaft 611, a first belt pulley 612, a second belt pulley 613, a first driving motor 901, a stand 902, a Z-axis connecting plate 1001, a fixing plate 1002, a mounting plate 1003, a test probe 1004, an ejection cylinder 1101, a bearing seat 1102, a clamping jaw cylinder 1201, a mounting block 1202, a threaded guide rod 1203, a nut 1204, a movable clamping jaw 1205, a spiral spring 1206, a U-shaped photoelectric switch 1207, a sensing sheet 1208.
Detailed Description
The invention is further described with reference to the following description of the drawings and the specific embodiments.
The inventor finds out through multiple practices that: in the prior art, OCV detection of batteries is basically performed by manually conveying a battery tray to a designated place for detection, and unqualified batteries are conveyed out for the same treatment after detection. Firstly, in the process, the process is basically completed through manpower, the labor force is large, and the efficiency is low; meanwhile, the detection mechanism and the clamping jaw mechanism are arranged in the prior art, but the detection mechanism and the clamping jaw mechanism are two separated mechanisms which need to be controlled respectively, and the situation that unqualified batteries can be grabbed when the batteries meet cannot be guaranteed.
Therefore, the inventor designs a high-efficiency and high-continuity battery OCV detection device and a detection method thereof to solve the technical problems, and the detection device comprises: the device comprises a machine frame 1, a roller line unit 2, a battery tray 3, a battery 4, a detection unit 5, a pull line unit 6, a test instrument platform 7, an X-axis assembly 8, a Z-axis assembly 9, an OCV detection assembly 10, a regulation and control assembly 11, a clamping jaw assembly 12, a vertical frame 601, a mounting frame 602, a transmission shaft 603, a first bevel gear 604, a second bevel gear 605, a roller 606, a third driving motor 607, a support plate 608, a pinch roller 609, a transmission belt 610, a driving shaft 611, a first belt pulley 612, a second belt pulley 613, a first driving motor 901, a stand 902, a Z-axis connecting plate 1001, a fixing plate 1002, a mounting plate 1003, a test probe 1004, an ejection cylinder 1101, a bearing seat 1102, a clamping jaw cylinder 1201, a mounting block 1202, a threaded guide rod 1203, a nut 1204, a movable clamping jaw 1205, a spiral spring 1206, a U-shaped photoelectric switch 1207, a sensing sheet 1208.
Example 1
As shown in fig. 1, the frame 1 is used for being placed on the ground, and plays a role in mounting and supporting other components of the detection device. The drum line body unit 2 is positioned in the rack 1, the drum line body unit 2 comprises a driving part and a line body part, and the driving part is used for driving the transportation of the line body part; the roller line unit 2 can be implemented by a commonly used conveying roller in the prior art, and is not described in detail. The battery 4 tray 3 is placed on the line body part, and the battery 4 tray 3 is used for orderly arranging and collecting the batteries 4; the battery 4 tray 3 is transported by the thread body part.
In order to realize the detection function, the OCV detection device for the battery 4 further includes: a detection unit 5 disposed inside the rack 1, the detection unit 5 including: the device comprises an X-axis assembly 8, a Z-axis assembly 9, an OCV detection assembly 10, a regulation assembly 11 and a clamping jaw assembly 12. Referring to fig. 1, the X-axis assembly 8 is disposed above the drum line body unit 2, and is used for adjusting positions of other components (including a Z-axis assembly 9, an OCV detection assembly 10, a regulation and control assembly 11, and a clamping jaw assembly 12) in the X-axis direction. Z axial subassembly 9 with 8 transmission connections of X axial subassembly, OCV detection subassembly 10 with 9 transmission connections of Z axial subassembly, regulation and control subassembly 11 with 10 transmission connections of OCV detection subassembly, clamping jaw subassembly 12 with 11 transmission connections of regulation and control subassembly. The Z-axis assembly 9 is used to adjust the position of the OCV sensing assembly 10 in the Z-axis and to coarsely adjust the control assembly 11 and the jaw assembly 12 in the Z-axis. The OCV detection component 10 is used for detecting the OCV parameters of the battery 4 in the tray 3 of the battery 4, and the clamping jaw component 12 clamps the detected unqualified battery 4 under the action of the regulation and control component 11; the distance between the OCV detection assembly 10 and the jaw assembly 12 is equal to the distance between two adjacent batteries 4.
In order to convey unqualified batteries 4 out of the rack 1 orderly, a pull belt line unit 6 is arranged at the tail end of the roller line body unit 2, and in order to save space, the pull belt line unit 6 pulls the pull belt line unit 6. The test instrument platform 7 is fixed on the rack 1 and used for displaying test data and results.
In a further embodiment, as shown in fig. 3, the OCV sensing assembly 10 includes: and the ZZ shaft connecting plate 1001 is used for being in transmission connection with the Z-axis component 9 and plays a role in starting and stopping. Two symmetrical fixing plates 1002 are vertically fixed at two sides of the ZZ shaft connecting plate 1001, the bottoms of the fixing plates 1002 are fixedly connected through a mounting plate 1003, and a test probe 1004 is arranged at the lower surface of the mounting plate 1003. The test probe 1004 includes: a current probe, a voltage probe, and a temperature probe; and the connecting ends of the current probe, the voltage probe and the temperature probe are electrically connected with corresponding pins of the test instrument platform 7 through conductor bundles. The portion of the test probe 1004 can be directly implemented by using the prior art, and therefore, the detailed description thereof is omitted.
In a further embodiment, to achieve the movement of the Z-axis assembly 9 and the OCV detection assembly 10 in the X-axis direction, the X-axis assembly 8 may be: the device comprises a truss fixed on the rack 1, a screw rod arranged on the truss through a bearing seat, a threaded sleeve in transmission connection with the screw rod, and a movable seat fixedly connected with the threaded sleeve. It can also be: the device comprises a truss fixed on the rack 1, an air cylinder arranged on the truss, an air cylinder fixed at one end of the truss, a moving block in transmission connection with a piston rod of the air cylinder, and a moving seat fixedly connected with the moving block, wherein the moving block and the air cylinder are in interference fit. Namely, the X-axis assembly 8 is a variety of transmission assemblies capable of driving the movable base to slide.
In order to achieve the up and down movement of the Z-link plate, the Z-axis assembly 9 is provided with: the first driving motor 901 is fixed on the movable seat, an output shaft of the first driving motor 901 is in transmission connection with a worm, the worm is meshed with a worm wheel, the worm wheel is in transmission connection with a threaded rod, the threaded rod is in transmission connection with the upright column 902 through internal and external threads, namely the upright column 902 is in a hollow structure and is internally provided with internal threads. The bottom end of the pillar 902 is used for fixedly connecting with a connecting plate in the OCV detection assembly 10. The threaded rod adjusts the height of the bottom end of the stand column 902 under the transmission of a worm gear and a worm, namely, the threaded rod is used for controlling the heights of the OCV detection assembly 10 and the regulating assembly 11.
In a further embodiment, the adjustment assembly 11 is configured to achieve fine Z-axis adjustment of the jaw assembly 12. Since in the present embodiment, the OCV detection assembly 10 detects the battery 4 first, and the height of the clamping jaw is higher than the height of the OCV detection assembly 10 during this process, when the unqualified battery 4 needs to be picked up, the clamping jaw assembly 12 is needed, and the adjustment and control assembly 11 is used for further adjusting the clamping jaw assembly 12.
As shown in fig. 4, the regulating component 11 is disposed on one side of the pillar 902, and the regulating component 11 includes: the ejection mechanism comprises an ejection cylinder 1101 fixed on the outer side wall of the upright column 902, a bearing seat 1102 in transmission connection with a piston rod of the ejection cylinder 1101, a guide rail which is fixed on the upright column 902 along the length direction of the upright column 902 and is on the same side as the ejection cylinder 1101, and a sliding block which is fixed on the bearing seat 1102 and is close to one side of the upright column 902; the guide rail and the sliding block are in interference fit, and the connecting seat is used for fixing the clamping jaw assembly 12.
With reference to fig. 4, the jaw assembly 12 includes: the clamping jaw air cylinder 1201, the symmetry sets up the installation piece 1202 of clamping jaw air cylinder 1201, the threaded guide rod 1203 of interlude on the installation piece 1202, fix nut 1204 at the top of threaded guide rod 1203, install the movable clamping jaw 1205 at the bottom of threaded guide rod 1203, cup joint the coil spring 1206 between installation piece 1202 and the movable clamping jaw 1205, install in installation piece 1202 top UU type photoelectric switch 1207, and vertically fix in response piece 1208 on the movable clamping jaw 1205, after the extrusion force that the movable clamping jaw 1205 received is too big, the movable clamping jaw 1205 under the transmission of threaded guide rod 1203 and the spring thread, along the outer wall of installation piece 1202 upwards remove make response piece 1208, response piece 1208 moves to UU type photoelectric switch 1207 in, UU type photoelectric switch 1207 triggers regulation and control subassembly 11 and stops continuing to move down.
The working principle of the regulating component 11 and the clamping jaw component 12 is as follows: when the clamping jaw assembly 12 needs to be started to clamp the unqualified battery 4, the ejection cylinder 1101 in the regulation and control assembly 11 is firstly started, the piston rod of the ejection cylinder 1101 pushes the bearing seat 1102 downwards, and the sliding block on the bearing seat 1102 slides on the guide rail, so that the moving stability of the bearing seat 1102 is improved. When the clamping jaw assembly 12 moves to the periphery of the battery 4, when the battery 4 is located between the two movable clamping jaws 1205, the clamping jaw cylinder 1201 is opened, and the two movable clamping jaws 1205 approach to each other under the action of the clamping jaw cylinder 1201 to clamp the battery 4.
In order to protect the battery 4 from being damaged, when the acting force between the battery 4 and the movable clamping jaw 1205 is too large, the movable clamping jaw 1205 moves upwards along the outer wall of the mounting block 1202 under the transmission of the threaded guide rod 1203 and the spring threads, so that the sensing piece 1208 and the sensing piece 1208 move into the UU-shaped photoelectric switch 1207, and the UU-shaped photoelectric switch 1207 triggers the regulating component 11 to stop moving downwards continuously. The battery 4 is protected by arranging a UU-type photoelectric switch 1207 and a sensing piece 1208.
In a further embodiment, in order to prevent the clamping jaw assembly 12 from moving downwards to bump the battery 4 or directly press the battery 4 during clamping, a polyurethane stopper 1209 is fixed at the bottom end of the mounting block 1202, and the polyurethane stopper 1209 is used for preventing the battery 4 from rubbing against the mounting block 1202; the bottom end of the movable clamping jaw 1205 is fixed with a plastic clamping block 1210, and the plastic clamping block 1210 is used for directly clamping the battery 4.
The rear side wall of the mounting block 1202 is fixed with a slide rail along the vertical direction, the rear side wall of the movable clamping jaw 1205 is fixed with a guide block, and the guide block and the slide rail are in interference fit.
In a further embodiment, in order to effectively handle the defective battery 4, as shown in fig. 5, the pull cord unit 6 includes: a plurality of vertical frames 601, mounting frames 602 which are arranged on the vertical frames 601 in a mirror image cross frame manner, a second driving motor fixed on one of the mounting frames 602, a transmission shaft 603 which is in transmission connection with an output shaft of the second driving motor, first bevel gears 604 which are equidistantly fixed on the transmission shaft 603, second bevel gears 605 which are correspondingly arranged in the vertical frames 601, and rollers 606 which are in coaxial transmission connection with the second bevel gears 605; the rollers 606 are rotatably mounted on another mounting frame 602, and the first bevel gears 604 are meshed with the corresponding second bevel gears 605; the roller is driven by the second driving motor, the first bevel gear 604, the second bevel gear 605 and the transmission shaft 603 to convey the batteries 4 taken out of the clamp.
That is, in the above-mentioned ribbon wire unit 6, the roller 606 is driven to rotate by the action of the second driving motor so as to convey the unqualified battery 4.
In this embodiment, the detection method of the OCV detection device of the battery 4 specifically includes the following steps: firstly, a tray 3 provided with a battery 4 to be detected and provided with the battery 4 is transported into a rack 1 through a roller line body unit 2, and a Z-axis component 9, an OCV detection component 10, a regulation and control component 11 and a clamping jaw component 12 are regulated to be above the battery 4 at the head end of the tray 3 of the battery 4 by controlling an X-axis component 8;
step two, starting a first driving motor 901 in the Z-axis component 9, driving a worm and a worm gear to drive the first driving motor 901, driving a threaded rod to rotate by the rotation of the worm gear, and driving the upright column 902 to move downwards due to the transmission because the upright column 902 is in transmission connection with the threaded rod through internal and external threads, so that an OCV detection component 10 on the Z-axis component 9 is in contact with a first battery 4 and performs OCV detection, and a detection result is displayed through a test instrument platform 7;
step three, if the first battery 4 is qualified after detection, the X-axis assembly 8 is started to drive other parts to approach the second battery 4, and OCV detection is carried out until the batteries 4 in the tray 3 of the batteries 4 are sequentially detected; if the battery 4 which is unqualified in detection appears in the middle, executing the step four, and executing the step seven, wherein the detected battery 4 which is qualified is placed still;
Step four, assuming that the Nth battery 4 is detected as unqualified, firstly, the Z-axis component 9 is regulated and controlled to move forwards so that the OCV detection component 10 is positioned above the (N + 1) th battery 4, and the clamping jaw component 12 is positioned above the Nth battery 4; adjusting and starting an air cylinder in the regulating and controlling assembly 11, pushing the clamping jaw assembly 12 downwards by the ejection air cylinder 1101, clamping the Nth battery 4 by the clamping jaw assembly 12, executing a fifth step if the unqualified battery 4 does not exist between the Nth battery 4 and the last battery 4, and executing a sixth step if the unqualified battery 4 continuously exists between the Nth battery 4 and the last battery 4;
step five, the clamping jaw assembly 12 continuously clamps the Nth battery 4, the OCV detection is performed to keep the rhythm of the sequential detection, finally, the OCV detection assembly 10, the regulation and control assembly 11 and the clamping jaw assembly 12 are brought to the tail end of the belt drawing line unit 6 under the transmission of the X axial assembly 8, the X axial assembly 8 is continuously controlled to transfer the Nth battery 4 on the clamping jaw to the belt drawing line unit 6, and the step seven is executed;
step six, assuming that the detected (N + M) th battery 4 is unqualified, at this time, the X-axis assembly 8 firstly moves the clamping jaw clamping the (N) th battery 4 to the pull string unit 6 to execute step seven, and then returns to the position above the tray 3 of the battery 4, so that the OCV detection assembly 10 is positioned on the (N + M + 1) th battery 4 to continue detection;
Seventhly, the unqualified battery 4 detected by the belt line pulling unit 6 is transmitted out of the rack 1, and the next process is started: and starting a second driving motor, wherein a first bevel gear 604 on a transmission shaft 603 of the second driving motor is meshed with the second bevel gear 605, so that a roller 606 which is coaxially connected with the second bevel gear 605 rotates to drive the battery 4 on the roller 606 to move.
Example 2
In the above embodiment 1, the roller 606 used in the ribbon wire unit 6 realizes the conveying function. However, during use, it was found that: when unqualified battery 4 is got and loosen and unload on the stayguy line unit 6, be difficult to guarantee that battery 4 does not take place to rock (lighter because of the quality of battery), battery 4's front end or rear end can be because the unstable card when placing is in adjacent roller 606 when being put down promptly, and unable normal quilt is carried, causes the phenomenon of blocking up.
Therefore, the inventor further improves the ribbon wire unit 6 to solve the above problems: as shown in fig. 6 to 8, the pull string unit 6 includes: the device comprises a plurality of vertical frames 601, a conveying plate which spans the vertical frames 601 and is fixedly connected with the vertical frames 601, a supporting plate 608 which is arranged on the conveying plate in a mirror symmetry manner, a transmission assembly arranged on the lower surface of the supporting plate 608, and a plurality of pressure wheels 609 which are connected with the transmission assembly in a transmission manner and are arranged above the supporting plate 608 in a transverse manner; the support plate 608 is a smooth metal plate, which reduces friction between the battery 4 and the support plate 608.
During the conveying process, the batteries 4 are placed on the conveying plate and positioned between the pressing wheels 609 at the two sides, the pressing wheels 609 rotate under the action of the transmission assembly, the rotation direction of the pressing wheels 609 is consistent with the advancing direction of the batteries 4, and the batteries 4 are directly pushed to move forwards through the rotation of the pressing wheels 609 at the two sides. Although the battery 4 is placed with a shaking phenomenon, the pressing wheel 609 plays a role of directly pushing the battery 4, so that the position of the battery 4 can be completely adjusted and moved forward along with the rotation of the pressing wheel 609 under the continuous rotation of the pressing wheel 609.
In order to reduce the pressure wheel 609 from pressing the surface of the battery 4, a rubber ring is sleeved on the rolling surface of the pressure wheel 609.
The transmission assembly includes: a third driving motor 607 fixed on the supporting plate 608, a driving shaft 611 connected to an output shaft of the third driving motor 607 in a transmission manner, a first belt pulley 612 fixed on the driving shaft 611 in an equal distance, a second belt pulley 613 coaxially connected with the pressing wheel 609 and positioned below the supporting plate 608, and a transmission belt 610 connected to the first belt pulley 612 and the second belt pulley 613 in a transmission manner; when the device is used, the rotation of the third driving motor 607 drives the driving shaft 611 to rotate, that is, the first pulley 612 on the driving shaft 611 rotates and drives the second pulley 613 to rotate through the transmission belt 610, and the rotation of the second pulley 613 drives the pressing wheel 609 coaxially connected with the second pulley 609 to rotate.
The detection method using the OCV detection device of the battery 4 specifically includes the steps of:
firstly, a tray 3 provided with a battery 4 to be detected and provided with the battery 4 is transported into a rack 1 through a roller line body unit 2, and a Z-axis component 9, an OCV detection component 10, a regulation and control component 11 and a clamping jaw component 12 are regulated to be above the battery 4 at the head end of the tray 3 of the battery 4 by controlling an X-axis component 8;
step two, starting a first driving motor 901 in the Z-axis component 9, driving a worm and a worm gear to drive the first driving motor 901, driving a threaded rod to rotate by the rotation of the worm gear, and driving the upright column 902 to move downwards due to the transmission because the upright column 902 is in transmission connection with the threaded rod through internal and external threads, so that an OCV detection component 10 on the Z-axis component 9 is in contact with a first battery 4 and performs OCV detection, and a detection result is displayed through a test instrument platform 7;
step three, if the first battery 4 is qualified after detection, the X-axis assembly 8 is started to drive other parts to approach the second battery 4, and OCV detection is carried out until the batteries 4 in the tray 3 of the batteries 4 are sequentially detected; if the battery 4 which is unqualified in detection appears in the middle, executing the step four, and executing the step seven, wherein the detected battery 4 which is qualified is placed still;
Step four, assuming that the Nth battery 4 is detected as unqualified, firstly, the Z-axis component 9 is regulated and controlled to move forwards so that the OCV detection component 10 is positioned above the (N + 1) th battery 4, and the clamping jaw component 12 is positioned above the Nth battery 4; adjusting and starting an air cylinder in the regulating and controlling assembly 11, pushing the clamping jaw assembly 12 downwards by the ejection air cylinder 1101, clamping the Nth battery 4 by the clamping jaw assembly 12, executing a fifth step if the unqualified battery 4 does not exist between the Nth battery 4 and the last battery 4, and executing a sixth step if the unqualified battery 4 continuously exists between the Nth battery 4 and the last battery 4;
step five, the clamping jaw assembly 12 continuously clamps the Nth battery 4, the OCV detection is performed to keep the rhythm of the sequential detection, finally, the OCV detection assembly 10, the regulation and control assembly 11 and the clamping jaw assembly 12 are brought to the tail end of the belt drawing line unit 6 under the transmission of the X axial assembly 8, the X axial assembly 8 is continuously controlled to transfer the Nth battery 4 on the clamping jaw to the belt drawing line unit 6, and the step seven is executed;
step six, assuming that the detected (N + M) th battery 4 is unqualified, at this time, the X-axis assembly 8 firstly moves the clamping jaw clamping the (N) th battery 4 to the pull string unit 6 to execute step seven, and then returns to the position above the tray 3 of the battery 4, so that the OCV detection assembly 10 is positioned on the (N + M + 1) th battery 4 to continue detection;
And seventhly, the belt line drawing unit 6 transmits the detected unqualified battery 4 to the outside of the frame 1, and the next process is started.
Claims (10)
1. A battery OCV detection device, characterized by comprising:
the rack is used for mounting other components of the detection equipment;
the roller line body unit is arranged in the rack; the roller line body unit comprises a driving part and a line body part, and the driving part is used for driving the transportation of the line body part;
a battery tray placed inside the bobbin part; the battery tray is used for orderly arranging and collecting batteries; the battery tray is conveyed and transported under the action of the line body part;
the detection unit is arranged in the rack; the method comprises the following steps: the device comprises an X-axis component, a Z-axis component, an OCV (oil control valve) detection component, a regulation and control component and a clamping jaw component; the X-axis component is arranged above the roller line unit, the Z-axis component is in transmission connection with the X-axis component, the OCV detection component is in transmission connection with the Z-axis component, the regulation and control component is in transmission connection with the OCV detection component, and the clamping jaw component is in transmission connection with the regulation and control component; the X-axis assembly and the Z-axis assembly are used for controlling the directions of the OCV detection assembly and the clamping jaw assembly, the OCV detection assembly is used for detecting the OCV parameters of the battery in the battery tray, and the clamping jaw assembly clamps the detected unqualified battery under the action of the regulation and control assembly; the distance between the OCV detection assembly and the clamping jaw assembly is equal to the distance between two adjacent batteries;
The belt line drawing unit is arranged at the tail end of the roller line body unit and is arranged in a vertical direction with the roller line body unit; the belt pulling line unit is used for conveying the unqualified battery taken out of the clamping jaw assembly;
and the test instrument platform is fixed on the rack.
2. The OCV detection apparatus of the battery according to claim 1, wherein the OCV detection assembly includes: the test device comprises a Z-axis connecting plate, fixing plates symmetrically fixed on two sides of the Z-axis connecting plate, a mounting plate fixed between the fixing plates, and test probes arranged on the lower surface of the mounting plate; the test probe includes: a current probe, a voltage probe, and a temperature probe; and the connecting ends of the current probe, the voltage probe and the temperature probe are electrically connected with corresponding pins of the test instrument platform through conductor bundles.
3. The battery OCV detection apparatus of claim 1, wherein the Z-axis assembly comprises: the device comprises a first driving motor, a worm wheel, a threaded rod and an upright post, wherein the worm is in transmission connection with an output shaft of the first driving motor; the bottom end of the stand column is fixedly connected with the OCV detection assembly;
The threaded rod adjusts the height of the bottom end of the stand column under the transmission of the worm wheel and the worm, namely, the threaded rod is used for controlling the height of the OCV detection assembly.
4. The OCV detecting apparatus for a battery according to claim 3, wherein the regulation member is provided at one side of the pillar, and the regulation member includes:
the ejection mechanism comprises an ejection cylinder fixed on the outer side wall of the upright column, a bearing seat in transmission connection with a piston rod of the ejection cylinder, a guide rail fixed on the upright column along the length direction of the upright column and on the same side as the ejection cylinder, and a sliding block fixed on the bearing seat and close to one side of the upright column; the guide rail with the slider is interference fit, the connecting seat is used for fixing the clamping jaw assembly.
5. The battery OCV detection apparatus of claim 1, wherein the jaw assembly comprises: the clamping jaw air cylinder, the mounting blocks symmetrically arranged on the clamping jaw air cylinder, the threaded guide rod inserted on the mounting blocks, the screw cap fixed at the top end of the threaded guide rod, the movable clamping jaw installed at the bottom end of the threaded guide rod, the spiral spring sleeved between the mounting blocks and the movable clamping jaw, the U-shaped photoelectric switch installed at the top of the mounting blocks, and the induction sheet vertically fixed on the movable clamping jaw,
When the extrusion force borne by the movable clamping jaw is too large, the movable clamping jaw moves upwards along the outer wall of the mounting block under the transmission of the threaded guide rod and the spring threads, so that the sensing piece moves into the U-shaped photoelectric switch, and the U-shaped photoelectric switch triggers the regulation and control assembly to stop moving downwards continuously.
6. The battery OCV detection device according to claim 5, wherein a polyurethane stopper is fixed to a bottom end of the mounting block, and the polyurethane stopper is used for preventing the battery from rubbing against the mounting block;
the bottom end of the movable clamping jaw is fixed with a plastic clamping block, and the plastic clamping block is used for directly clamping a battery;
the rear side wall of the mounting block is fixed with a slide rail along the vertical direction, the rear side wall of the movable clamping jaw is fixed with a guide block, and the guide block and the slide rail are in interference fit.
7. The OCV detecting apparatus of the battery according to claim 1, wherein the cord pulling unit includes: the device comprises a plurality of vertical frames, mounting frames which are arranged on the vertical frames in a mirror image cross mode, a second driving motor fixed on one of the mounting frames, a transmission shaft in transmission connection with an output shaft of the second driving motor, first bevel gears fixed on the transmission shaft at equal intervals, second bevel gears correspondingly arranged in the vertical frames, and rollers in coaxial transmission connection with the second bevel gears; the rollers are rotatably arranged on the other mounting rack at the same time, and the first bevel gears are meshed with the corresponding second bevel gears;
The roller conveys the batteries taken out of the clamp under the transmission of the second driving motor, the first bevel gear, the second bevel gear and the transmission shaft.
8. The OCV detecting apparatus of the battery according to claim 1, wherein the cord pulling unit includes: the device comprises a plurality of vertical frames, a conveying plate, a supporting plate, a transmission assembly and a plurality of pressing wheels, wherein the conveying plate stretches across the vertical frames and is fixedly connected with the vertical frames, the supporting plate is arranged on the conveying plate in a mirror symmetry mode, the transmission assembly is arranged on the lower surface of the supporting plate, and the pressing wheels are connected with the transmission assembly in a transmission mode and are arranged above the supporting plate in a transverse mode;
during the conveying process of the battery, the battery is placed on the conveying plate and positioned between the press wheels at the two sides, the press wheels rotate under the action of the transmission assembly, the rotation direction of the press wheels is consistent with the advancing direction of the battery, and the battery is directly pushed to move forwards by the rotation of the press wheels at the two sides;
and the rolling surface of the pinch roller is sleeved with a rubber ring.
9. The battery OCV detecting apparatus according to claim 8, wherein the transmission assembly includes: the pressing wheel is coaxially connected with the first belt wheel, the second belt wheel is positioned below the supporting plate, and the transmission belt is in transmission connection with the first belt wheel and the second belt wheel;
When the automatic transmission device is used, the rotation of the third driving motor drives the driving shaft to rotate, namely, the first belt wheel positioned on the driving shaft rotates, the second belt wheel is driven to rotate through the transmission belt, and the rotation of the second belt wheel drives the pressing wheel coaxially connected with the second belt wheel to rotate.
10. The detection method using the battery OCV detection device according to any one of claims 1 to 9, characterized by specifically including the steps of:
the method comprises the following steps that firstly, a battery tray provided with a battery to be detected is transported into a rack through a roller line unit, and a Z-axis component, an OCV (open control valve) detection component, a regulation and control component and a clamping jaw component are regulated to be above the battery at the head end of the battery tray by controlling an X-axis component;
step two, starting a first driving motor in the Z-axis assembly, driving a worm and a worm wheel to drive the worm, driving a threaded rod to rotate by the rotation of the worm wheel, and driving the upright column to move downwards due to the transmission because the upright column is in transmission connection with the threaded rod through internal and external threads, so that an OCV (open circuit voltage) detection assembly on the Z-axis assembly is in contact with a first battery and performs OCV (open circuit voltage) detection, and a detection result is displayed through a test instrument platform;
step three, if the first battery is qualified after detection, starting the X-axis assembly, driving other parts to approach to the second battery, and performing OCV detection until the batteries in the battery tray are detected in sequence; if the batteries which are unqualified in detection appear in the middle, executing the step four, and executing the step seven, wherein the detected batteries which are qualified are placed still;
Step four, assuming that the Nth battery is unqualified, firstly, regulating and controlling the Z-axis component to move forwards to enable the OCV detection component to be positioned above the (N + 1) th battery, and at the moment, enabling the clamping jaw component to be positioned above the Nth battery; adjusting and starting an air cylinder in the regulating and controlling assembly, pushing the clamping jaw assembly downwards by an ejection air cylinder, clamping the Nth battery by the clamping jaw assembly, executing a fifth step if unqualified batteries do not exist between the Nth battery and the last battery, and executing a sixth step if unqualified batteries continuously exist between the Nth battery and the last battery;
step five, the clamping jaw assembly continuously clamps the Nth battery, the OCV detection is performed in a rhythm of sequential detection, finally the OCV detection assembly, the regulation and control assembly and the clamping jaw assembly are driven to the tail end of the belt pulling line unit under the transmission of the X axial assembly, the X axial assembly is continuously controlled to transfer the Nth battery on the clamping jaw to the belt pulling line unit, and the step seven is executed;
step six, assuming that the detected (N + M) th battery is unqualified, at the moment, the X-axis assembly firstly moves the clamping jaw clamping the Nth battery to the pull string unit to execute step seven, and then returns to the upper part of the battery tray to enable the OCV detection assembly to be positioned on the (N + M + 1) th battery to continue detection;
And seventhly, the belt line drawing unit transmits the detected unqualified battery to the outside of the frame, and the next process is started.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010692814.1A CN111856291A (en) | 2020-07-17 | 2020-07-17 | Battery OCV detection device and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010692814.1A CN111856291A (en) | 2020-07-17 | 2020-07-17 | Battery OCV detection device and detection method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111856291A true CN111856291A (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010692814.1A Withdrawn CN111856291A (en) | 2020-07-17 | 2020-07-17 | Battery OCV detection device and detection method thereof |
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| Country | Link |
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| CN (1) | CN111856291A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI747755B (en) * | 2021-02-26 | 2021-11-21 | 台林電通股份有限公司 | Test device for improving voltage and current |
| CN117630706A (en) * | 2024-01-26 | 2024-03-01 | 宁德时代新能源科技股份有限公司 | Open circuit voltage testing device of battery |
-
2020
- 2020-07-17 CN CN202010692814.1A patent/CN111856291A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI747755B (en) * | 2021-02-26 | 2021-11-21 | 台林電通股份有限公司 | Test device for improving voltage and current |
| CN117630706A (en) * | 2024-01-26 | 2024-03-01 | 宁德时代新能源科技股份有限公司 | Open circuit voltage testing device of battery |
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