CN113376539B - Storage battery internal resistance precision testing device with loop resistor - Google Patents
Storage battery internal resistance precision testing device with loop resistor Download PDFInfo
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- CN113376539B CN113376539B CN202110647281.XA CN202110647281A CN113376539B CN 113376539 B CN113376539 B CN 113376539B CN 202110647281 A CN202110647281 A CN 202110647281A CN 113376539 B CN113376539 B CN 113376539B
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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]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
- G01R1/203—Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts
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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]
- G01R31/3644—Constructional arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
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Abstract
The invention discloses a storage battery internal resistance precision testing device with loop resistance, which comprises a workbench, a transfer device, an oxide layer removing device and a measuring device, wherein the transfer device, the oxide layer removing device and the measuring device are arranged on the workbench, the oxide layer removing device and the measuring device are respectively arranged on the left side and the right side of the transfer device, the oxide layer removing device comprises a right support fixedly arranged on the surface of the workbench, two electric cylinders I are fixedly arranged at the top of the right support, piston rods of the two electric cylinders I are respectively provided with a polishing unit, each polishing unit comprises a dust-proof cylinder, a servo motor and a grinding disc, an opening of the dust-proof cylinder faces downwards and is fixedly arranged on an action end of the piston rod of the electric cylinder I, the servo motor is fixedly arranged at the top of the dust-proof cylinder, an output shaft of the servo motor extends into the dust-proof cylinder, a rotating shaft is connected to an extending end of the servo motor, and the grinding disc is arranged on the rotating shaft. The invention has the beneficial effects that: compact structure, improvement internal resistance detection precision, improvement detection efficiency, realization continuous test battery, degree of automation is high.
Description
Technical Field
The invention relates to the technical field of testing of internal resistance of a storage battery, in particular to a precise testing device for internal resistance of the storage battery with a loop resistor.
Background
The storage battery is widely used as a backup power supply in various industries such as telecommunications, power systems, banks and the like, the reliability and the use performance of the storage battery are critical to the power systems, the internal resistance of the storage battery is an important index for reflecting the performance of the storage battery, and the accurate measurement and calibration of the internal resistance of the storage battery become a common concern in the industry and are also important parameters for constant value management in the power industry. In a storage battery production workshop, after storage batteries are produced in batches, quality testing personnel need to detect the internal resistance of the storage batteries through an internal resistance measuring instrument, if the detected internal resistance does not meet the requirements, the quality testing personnel remove unqualified storage batteries, and if the detected internal resistance meets the design requirements, the qualified storage batteries are conveyed to a packaging section and packaged through a packaging machine and then conveyed to a customer. During detection, a quality inspector clamps one end of the internal resistance measuring instrument on one end of the storage battery, clamps the other end of the internal resistance measuring instrument on the other end of the storage battery, and opens the internal resistance measuring instrument to read the internal resistance of the detected storage battery. However, although this detection method can detect the internal resistance, the following drawbacks still exist in the actual detection: 1. the manual quality inspection is carried out, and work load is too big, all need to press from both sides two chucks on the internal resistance measuring apparatu respectively on two end at every turn, and detect the back, still need take off the chuck, this has increased quality inspection personnel's working strength undoubtedly, has reduced detection efficiency simultaneously. 2. An oxide layer is formed on the surface of the storage battery, and the oxide layer increases the thickness of the end, namely, the resistance value, thereby influencing the detection precision of the internal resistance. 3. During detection, the current flowing through the internal resistance measuring instrument is quite large, so that the internal resistance measuring instrument is easily burnt out, and the service life of the internal resistance measuring instrument is shortened. Therefore, a testing device for improving the internal resistance detection precision, improving the detection efficiency and realizing continuous testing of the storage battery is needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the storage battery internal resistance precision testing device with the loop resistance, which has the advantages of compact structure, high internal resistance detection precision, high detection efficiency, continuous storage battery testing and high automation degree.
The purpose of the invention is realized by the following technical scheme: the precise testing device for the internal resistance of the storage battery with the loop resistance comprises a workbench, a transferring device, an oxide layer removing device and a measuring device, wherein the transferring device, the oxide layer removing device and the measuring device are arranged on the workbench, the oxide layer removing device comprises a right support fixedly arranged on the surface of the workbench, two electric cylinders I are fixedly arranged at the top of the right support, piston rods of the two electric cylinders I are respectively provided with a polishing unit, each polishing unit comprises a dustproof cylinder, a servo motor and a grinding disc, the dustproof cylinder is provided with a downward opening and is fixedly arranged on the action end of the piston rod of the electric cylinder I, the servo motor is fixedly arranged at the top of the dustproof cylinder, an output shaft of the servo motor extends into the dustproof cylinder, the extending end is connected with a rotating shaft, and the grinding disc is arranged on the rotating shaft;
measuring device is including setting firmly the left socle on the workstation, the left socle internal stability has two sleeves, slidable mounting has the conducting rod of liftable between the telescopic upper and lower end, the one end of conducting rod extends in telescopic outside, and extend and serve and be connected with the wire, the other end of wire and internal resistance measuring instrument's a articulate, the conducting rod other end extends in telescopic below, be provided with the annular plate that sets firmly on the conducting rod in the sleeve, be provided with the spring that the cover was located on the conducting rod in the sleeve, the top portion of spring sets firmly on telescopic top surface, the bottom of spring sets firmly on the top surface of annular plate, under the spring action of spring, the annular plate supports and presses in telescopic bottom.
The electric cylinder I, the dust-proof cylinder and the conducting rod are all vertically arranged.
The internal resistance measuring instrument is fixedly arranged on the top surface of the left bracket.
Transfer device includes step motor, reduction gear and carousel, reduction gear and step motor set firmly respectively on the upper and lower surface of workstation, step motor's output shaft run through the workstation and through the coupling joint with the input shaft of reduction gear, the output shaft of reduction gear sets up in its top, the carousel is installed on the output shaft of reduction gear, and the side all is provided with the fluted disc that is used for the splendid attire battery about the carousel, and the inner chamber of fluted disc cooperatees with the outline of battery.
Be provided with the L board on the frid, the vertical slab of L board sets firmly on the basal surface of frid, has set firmly electric jar II on the horizontal plate of L board, and electric jar II's piston rod runs through the basal surface of frid and extends in the frid, and the effect of electric jar II piston rod is served and is set firmly the board of lifting that is located the frid.
The bottom surface of the lifting plate is fixedly provided with a plurality of guide rods, the bottom surface of the groove disc is provided with a plurality of guide holes corresponding to the guide rods, and the guide rods are respectively slidably arranged in the guide holes.
The two grooved discs are arranged in bilateral symmetry about the turntable.
And the lead is connected with a resistor.
The annular plate and the sleeve are both insulating pieces.
The electric cylinder I electromagnetic valve, the electric cylinder II electromagnetic valve, the stepping motor and the servo motor are electrically connected.
The invention has the following advantages:
1. one end of the electric pole extends outside the sleeve, the extending end is connected with a lead, the other end of the lead is connected with one joint of the internal resistance measuring instrument, the lead is connected with a resistor, the resistor and the internal resistance measuring instrument form a loop resistor, and the resistor shares the voltage of the internal resistance measuring instrument, so that the internal resistance measuring instrument is prevented from being burnt out by large current, and the service life of the internal resistance measuring instrument is prolonged.
2. The piston rods of two electric cylinders I are respectively provided with a polishing unit, each polishing unit comprises a dustproof cylinder, a servo motor and a grinding disc, the dustproof cylinder is provided with a downward opening and fixedly arranged on the action end of the piston rod of the electric cylinder I, the servo motor is fixedly arranged at the top of the dustproof cylinder, the output shaft of the servo motor extends into the dustproof cylinder, the extension end of the output shaft is connected with a rotating shaft, and the grinding disc is arranged on the rotating shaft; the piston rods of the two electric cylinders I are controlled to extend downwards, the piston rods drive the dust-proof cylinder and the servo motor to synchronously move downwards, after the piston rods fall to a certain height, the two end heads are respectively inserted into the dust-proof cylinder from bottom to top, the top surfaces of the two end heads are respectively contacted with the bottom surfaces of the two grinding discs, then the electric cylinders I are closed, the servo motor is opened, the servo motor drives the rotating shaft to rotate, the rotating shaft drives the grinding discs to do rotary motion around the axis of the rotating shaft, and the rotating grinding discs remove oxide layers on the top surfaces of the end heads; because the oxide layer on the top surface of the end head is removed in advance, the contact between the conducting rod and the base material of the end head is ensured, and the error brought to the testing precision by the oxidized side is avoided, so that the testing precision of the internal resistance of the storage battery is greatly improved.
3. A liftable conductive rod is slidably arranged between the upper end and the lower end of a sleeve, one end of the conductive rod extends to the outside of the sleeve, a lead is connected to the extending end of the conductive rod, the other end of the lead is connected with a connector of an internal resistance measuring instrument, the other end of the conductive rod extends to the lower part of the sleeve, an annular plate fixedly arranged on the conductive rod is arranged in the sleeve, a spring sleeved on the conductive rod is arranged in the sleeve, the top end part of the spring is fixedly arranged on the top surface of the sleeve, the bottom end of the spring is fixedly arranged on the top surface of the annular plate, the annular plate is pressed against the bottom of the sleeve under the action of the elastic force of the spring, a piston rod of an electric cylinder II extends upwards, the piston rod drives a lifting plate to move upwards, and the lifting plate drives a storage battery to move upwards; when the piston rod is completely extended out, the two end heads respectively abut against the bottom surfaces of the two conducting rods, the two conducting rods also oppositely abut against the ground surfaces of the two end heads under the action of the elastic force of the spring, the storage battery, the two conducting wires, the resistor and the internal resistance measuring instrument form a closed loop at the moment, the internal resistance measuring instrument measures the internal resistance of the storage battery, and workers can observe the internal resistance value of the storage battery on the internal resistance measuring instrument, so that the measurement of the internal resistance of the storage battery is realized; because the conducting rod can be self-adaptively propped on the top surface of the conducting rod under the action of the elastic force of the spring, the conducting rod is in closer contact with the base material of the end, the problem that the end is damaged by clamping of a clamping head is solved, and the testing precision of the internal resistance of the storage battery is also greatly improved.
4. In the detection process, a worker embeds another storage battery to be detected into the groove disc on the right side to remove the oxide layer on the top surface of the end head of the storage battery, the testing device realizes continuous testing, and compared with the traditional manual testing, the testing device not only greatly lightens the working strength of the worker, but also improves the testing efficiency of the internal resistance of the storage battery.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic view of a measuring apparatus;
FIG. 3 is a schematic structural diagram of an oxide layer removing apparatus;
FIG. 4 is a schematic view of the transfer device;
FIG. 5 is a schematic diagram of the operation of positioning the battery;
FIG. 6 is a schematic diagram of the operation of removing the oxide layer on the top surface of the tip;
FIG. 7 is an enlarged view of part I of FIG. 6;
FIG. 8 is a schematic diagram of the operation of transferring batteries to a measuring station;
FIG. 9 is a schematic diagram of the operation of measuring the internal resistance of a battery;
FIG. 10 is an enlarged view of a portion II of FIG. 9;
in the figure, 1-workbench, 2-transfer device, 3-oxide layer removing device, 4-measuring device, 5-right support, 6-electric cylinder I, 7-polishing unit, 8-dust-proof cylinder, 9-servo motor, 10-grinding disc, 11-rotating shaft, 12-left support, 13-sleeve, 14-conducting rod, 15-conducting wire, 16-internal resistance measuring instrument, 17-annular plate, 18-spring, 19-stepping motor, 20-speed reducer, 21-rotating disc, 22-grooved disc, 23-L plate, 24-electric cylinder II, 25-lifting plate, 26-guiding rod, 27-resistor, 28-accumulator and 29-end.
Detailed Description
The invention will be further described with reference to the accompanying drawings, without limiting the scope of the invention to the following:
as shown in fig. 1 to 4, a precise testing device for internal resistance of a storage battery with loop resistance, which comprises a workbench 1, a transferring device 2 arranged on the workbench 1, an oxide layer removing device 3 and a measuring device 4, wherein the oxide layer removing device 3 and the measuring device 4 are respectively arranged on the left side and the right side of the transferring device 2, the oxide layer removing device 3 comprises a right bracket 5 fixedly arranged on the table top of the workbench 1, two electric cylinders I6 are fixedly arranged on the top of the right bracket 5, polishing units 7 are respectively arranged on piston rods of the two electric cylinders I6, each polishing unit 7 comprises a dust-proof cylinder 8, a servo motor 9 and a grinding disc 10, an opening of the dust-proof cylinder 8 faces downwards and is fixedly arranged on an action end of the piston rod of the electric cylinder I6, the servo motor 9 is fixedly arranged on the top of the dust-proof cylinder 8, an output shaft of the servo motor 9 extends into the dust-proof cylinder 8, and an extension end is connected with a rotating shaft 11, a grinding disc 10 is arranged on the rotating shaft 11, the grinding disc 10 is arranged in the dust-proof cylinder 8, and the grinding disc 10 is horizontally arranged, the grinding disc 10 is arranged in the process of polishing the oxide layer, and waste scraps are splashed out due to the action of the dust-proof cylinder 8.
The measuring device 4 comprises a left support 12 fixedly arranged on the workbench 1, two sleeves 13 are fixedly arranged in the left support 12, a liftable conducting rod 14 is slidably arranged between the upper end and the lower end of each sleeve 13, an electric cylinder I6, a dust prevention cylinder 8 and the conducting rod 14 are vertically arranged, one end of each conducting rod 14 extends out of the corresponding sleeve 13, a conducting wire 15 is connected to the extending end of each conducting rod 14, the other end of each conducting wire 15 is connected with a connector of an internal resistance measuring instrument 16, the internal resistance measuring instruments 16 are fixedly arranged on the top surface of the left support 12, the other ends of the conducting rods 14 extend below the corresponding sleeves 13, annular plates 17 fixedly arranged on the conducting rods 14 are arranged in the corresponding sleeves 13, springs 18 sleeved on the conducting rods 14 are arranged in the corresponding sleeves 13, the top ends of the springs 18 are fixedly arranged on the top surfaces of the corresponding sleeves 13, the bottom ends of the springs 18 are fixedly arranged on the top surfaces of the annular plates 17, and the annular plates 17 abut against the bottoms of the corresponding sleeves 13 under the elastic force of the springs 18.
Be connected with resistance 27 on the wire 15 annular plate 17 and sleeve 13 are the insulating part, and it still includes the controller, the controller is connected with electric jar I6's solenoid valve, electric jar II 24's solenoid valve, step motor 19, servo motor 9 electricity, can control stretching out or retracting of electric jar I and electric jar II piston rod through the controller, can also control step motor 19 and servo motor 9's start-up or close simultaneously, and the operation of convenient work has the high characteristics of degree of automation.
The working process of the invention is as follows:
s1, a worker inserts a storage battery 28 to be measured into the right trough plate 22 from top to bottom and seats the storage battery 28 on the top surface of the lifting plate 25 to achieve grinding positioning of the storage battery, wherein two end heads 29 on the storage battery 28 are respectively positioned right below two grinding units 7, as shown in FIG. 5;
s2, removing oxidation layers on the top surfaces of two ends on the storage battery, controlling piston rods of two electric cylinders I6 to extend downwards by workers, driving a dust-proof cylinder 8 and a servo motor 9 to move downwards synchronously by the piston rods, inserting two ends 29 into the dust-proof cylinder 8 from bottom to top respectively after the piston rods fall to a certain height, enabling the top surfaces of the two ends 29 to be in contact with the bottom surfaces of two grinding discs 10 respectively as shown in a figure 6, then closing the electric cylinders I6, opening the servo motor 9, driving a rotating shaft 11 to rotate by the servo motor 9, driving the grinding discs 10 to rotate around the axis of the rotating shaft 11 by the rotating shaft 11, and removing the oxidation layers on the top surfaces of the ends 29 by the rotating grinding discs 10 as shown in figures 6-7; since the oxide layer on the top surface of the terminal 29 is removed in advance, the conductive rod 14 is ensured to be in contact with the base material of the terminal 29, errors caused by the oxidized side to the testing precision are avoided, and the testing precision of the internal resistance of the storage battery is greatly improved.
S3, transferring the storage battery, wherein the specific operation steps are as follows:
s31, after polishing for a period of time, closing the servo motor 9 and simultaneously controlling the piston rods of the two electric cylinders I6 to retract upwards;
s32, controlling the stepping motor 19 to start, reducing the speed of the torque of the stepping motor 19 through the speed reducer 20 to drive the rotating disc 21 to rotate, driving the right grooved disc 22 to rotate through the rotating disc 21, controlling the stepping motor 19 to close after rotating for 180 degrees, stopping the rotation of the rotating disc 21 at the moment, and respectively positioning two end heads 29 on the storage battery 28 right below the two conducting rods 14 as shown in the figure 8, thereby realizing the transportation of the storage battery;
s4, measuring the internal resistance of the storage battery, wherein a piston rod of an electric cylinder II24 below the control groove disc 22 extends upwards, the piston rod drives a lifting plate 25 to move upwards, and the lifting plate 25 drives a storage battery 28 to move upwards; after the piston rod is completely extended out, the two end heads 29 respectively abut against the bottom surfaces of the two conducting rods 14, under the action of the elastic force of the spring 18, the two conducting rods 14 also oppositely abut against the polished surfaces of the two end heads 29 as shown in fig. 9-10, at this time, the storage battery 28, the two conducting wires 15, the resistor 27 and the internal resistance measuring instrument 16 form a closed loop, the internal resistance measuring instrument 16 measures the internal resistance of the storage battery 28, and a worker can view the internal resistance value of the storage battery 28 on the internal resistance measuring instrument 16, so that the internal resistance of the storage battery 28 is measured; because the conducting rod 14 can be self-adaptively propped against the top surface of the conducting rod 14 under the action of the elastic force of the spring 18, the conducting rod 14 is in closer contact with the base material of the end 29, the problem that the end is clamped by a chuck is solved, and the testing precision of the internal resistance of the storage battery is greatly improved;
s5, after the measurement is finished, the piston rod of the electric cylinder II24 is controlled to reset, the electric cylinder II24 drives the lifting plate 25 and the detected storage battery 28 to move downwards, and after the reset, the conducting rod 14 also resets under the elastic force of the spring 18;
and S6, in the detection process of the step S4, a worker inserts another storage battery to be detected into the right trough plate 22 to remove the oxide layer on the top surface of the storage battery end. Consequently, this testing arrangement has realized continuous test, compares traditional artifical test, not only very big work intensity that has alleviateed the workman, but also improved the efficiency of software testing of battery internal resistance.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a take battery internal resistance precision test device of return circuit resistance which characterized in that: the automatic polishing device comprises a workbench (1), a transfer device (2) arranged on the workbench (1), an oxide layer removing device (3) and a measuring device (4), wherein the oxide layer removing device (3) and the measuring device (4) are respectively arranged on the left side and the right side of the transfer device (2), the oxide layer removing device (3) comprises a right support (5) fixedly arranged on the table top of the workbench (1), two electric cylinders I (6) are fixedly arranged at the top of the right support (5), polishing units (7) are respectively arranged on piston rods of the two electric cylinders I (6), each polishing unit (7) comprises a dust-proof cylinder (8), a servo motor (9) and a grinding disc (10), an opening of the dust-proof cylinder (8) faces downwards and is fixedly arranged on an acting end of the piston rod of the electric cylinder I (6), the servo motor (9) is fixedly arranged at the top of the dust-proof cylinder (8), an output shaft of the servo motor (9) extends into the dust-proof cylinder (8), a rotating shaft (11) is connected to the extending end, and the grinding disc (10) is arranged on the rotating shaft (11);
the measuring device (4) comprises a left support (12) fixedly arranged on a workbench (1), two sleeves (13) are fixedly arranged in the left support (12), a liftable conducting rod (14) is slidably arranged between the upper end and the lower end of each sleeve (13), one end of each conducting rod (14) extends out of each sleeve (13), a lead (15) is connected to an extending end of each extending end, the other end of each lead (15) is connected with a connector of an internal resistance measuring instrument (16), the other end of each conducting rod (14) extends below each sleeve (13), an annular plate (17) fixedly arranged on each conducting rod (14) is arranged in each sleeve (13), a spring (18) sleeved on each conducting rod (14) is arranged in each sleeve (13), the top end of each spring (18) is fixedly arranged on the top surface of each sleeve (13), the bottom end of each spring (18) is fixedly arranged on the top surface of each annular plate (17), each annular plate (17) is abutted against the bottom of each sleeve (13) under the elastic action of each spring (18), the transfer device (2) comprises a stepping motor (19), a speed reducer (20) and a rotary table (21), an output shaft coupling (20) is connected with an input shaft coupling (1) and an output shaft coupling (20) which is connected with the stepping motor (1), an output shaft of the speed reducer (20) is arranged at the top of the speed reducer, the rotary disc (21) is mounted on the output shaft of the speed reducer (20), groove discs (22) for containing storage batteries are arranged on the left side and the right side of the rotary disc (21), and inner cavities of the groove discs (22) are matched with the outer contour of the storage batteries;
be provided with L board (23) on frid (22), the vertical plate of L board (23) sets firmly on the basal surface of frid (22), has set firmly electric jar II (24) on the horizontal plate of L board (23), and the piston rod of electric jar II (24) runs through the basal surface of frid (22) and extends in frid (22), and the effect of electric jar II (24) piston rod is served and is set firmly lift board (25) that are located frid (22), a plurality of guide bars (26) have set firmly on the basal surface of lift board (25), a plurality of guiding holes corresponding with guide bar (26) have been seted up on the basal surface of frid (22), guide bar (26) respectively sliding mounting is in the guiding hole, and the method of test internal resistance is:
s1, a worker inserts a storage battery (28) to be measured into a right trough plate (22) from top to bottom, and seats the storage battery (28) on the top surface of a lifting plate (25) to achieve grinding positioning of the storage battery, wherein two end heads (29) on the storage battery (28) are respectively positioned right below two grinding units (7);
s2, removing oxidation layers on the top surfaces of two ends of the storage battery: a worker controls piston rods of the two electric cylinders I (6) to extend downwards, the piston rods drive the dust-proof cylinder (8) and the servo motor (9) to synchronously move downwards, after the dust-proof cylinder and the servo motor fall to a certain height, the two end heads (29) are respectively inserted into the dust-proof cylinder (8) from bottom to top, the top surfaces of the two end heads (29) are respectively contacted with the bottom surfaces of the two grinding discs (10), then the electric cylinders I (6) are closed, the servo motor (9) is opened, the servo motor (9) drives the rotating shaft (11) to rotate, the rotating shaft (11) drives the grinding discs (10) to do rotating motion around the axis of the rotating shaft (11), and the rotating grinding discs (10) remove oxide layers on the top surfaces of the end heads (29);
s3, transferring the storage battery, wherein the specific operation steps are as follows:
s31, after polishing for a period of time, closing the servo motor (9), and simultaneously controlling piston rods of the two electric cylinders I (6) to retract upwards;
s32, controlling a stepping motor (19) to start, driving a turntable (21) to rotate after the torque of the stepping motor (19) is reduced by a speed reducer 20, driving a right grooved disc (22) to rotate by the turntable (21), controlling the stepping motor (19) to close after rotating for 180 degrees, stopping the rotation of the turntable (21) at the moment, and respectively positioning two end heads (29) on a storage battery (28) under two conducting rods (14), thereby realizing the transportation of the storage battery;
s4, measuring the internal resistance of the storage battery: a piston rod of an electric cylinder II (24) below the control groove disc (22) extends upwards, the piston rod drives a lifting plate (25) to move upwards, and the lifting plate (25) drives a storage battery (28) to move upwards; after the piston rod is completely extended out, the two end heads (29) are respectively pressed on the bottom surfaces of the two conducting rods (14), under the action of the elastic force of the spring (18), the two conducting rods (14) are also oppositely pressed on the ground surfaces of the two end heads (29), at the moment, the storage battery (28), the two conducting wires (15), the resistor (27) and the internal resistance measuring instrument (16) form a closed loop, the internal resistance measuring instrument (16) measures the internal resistance of the storage battery (28), and a worker can observe the internal resistance value of the storage battery (28) on the internal resistance measuring instrument (16), so that the measurement of the internal resistance of the storage battery (28) is realized;
s5, after the measurement is finished, the piston rod of the electric cylinder II (24) is controlled to reset, the electric cylinder II (24) drives the lifting plate (25) and the detected storage battery (28) to move downwards, and after the reset, the conducting rod (14) also resets under the elastic force of the spring (18);
s6, in the detection process of the step S4, a worker inserts another storage battery to be detected into the right trough plate (22) to remove the oxide layer on the top surface of the storage battery end.
2. The precise testing device for the internal resistance of the storage battery with the loop resistor as claimed in claim 1, characterized in that: the electric cylinder I (6), the dust-proof cylinder (8) and the conducting rod (14) are all vertically arranged.
3. The precise testing device for the internal resistance of the storage battery with the loop resistor, according to claim 1, is characterized in that: the internal resistance measuring instrument (16) is fixedly arranged on the top surface of the left bracket (12).
4. The precise testing device for the internal resistance of the storage battery with the loop resistor as claimed in claim 1, characterized in that: the two grooved discs (22) are arranged in bilateral symmetry with respect to the rotary disc (21).
5. The precise testing device for the internal resistance of the storage battery with the loop resistor, according to claim 1, is characterized in that: and the lead (15) is connected with a resistor (27).
6. The precise testing device for the internal resistance of the storage battery with the loop resistor as claimed in claim 1, characterized in that: the annular plate (17) and the sleeve (13) are both insulating pieces.
7. The precise testing device for the internal resistance of the storage battery with the loop resistor as claimed in claim 1, characterized in that: the electric cylinder control system further comprises a controller, and the controller is electrically connected with the electromagnetic valve of the electric cylinder I (6), the electromagnetic valve of the electric cylinder II (24), the stepping motor (19) and the servo motor (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110647281.XA CN113376539B (en) | 2021-06-10 | 2021-06-10 | Storage battery internal resistance precision testing device with loop resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110647281.XA CN113376539B (en) | 2021-06-10 | 2021-06-10 | Storage battery internal resistance precision testing device with loop resistor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113376539A CN113376539A (en) | 2021-09-10 |
| CN113376539B true CN113376539B (en) | 2022-10-18 |
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