CN104880674B - A kind of battery on-line measuring device - Google Patents

Abstract

The invention relates to an online detection device for a battery, comprising a conveying mechanism arranged on a bracket for conveying batteries, a clamping and detecting mechanism for clamping and detecting the battery on the conveying mechanism, and driving the clamping and detecting mechanism to reciprocate Motion drive mechanism. The battery on-line detection device of the present invention detects several batteries at the same time during the tank chain conveyance process through the clamping detection mechanism, does not affect the continuous conveyance of the tank chain, and realizes online continuous detection; due to the reasonable rhythm of the detection device, and The structure is simple, the manufacturing cost is reduced, the detection efficiency is greatly improved, and the operation cost is reduced.

Description

A battery online detection device

technical field

The invention belongs to the field of battery detection, in particular to an online battery detection device.

Background technique

The battery of an electric vehicle is composed of multiple batteries connected in series. The quality of the battery is related to the service life of the battery. Therefore, after the production of the battery is completed, the battery needs to be tested for indicators, such as voltage, resistance, charge and discharge, etc. index. These indicators of the battery are detected by the battery tester. The current detection method is to transport the battery to the equipment connected to the battery tester after the battery production is completed, and test it sequentially. After the test is completed, the corresponding equipment needs to be tested used batteries for transport. It can be seen that this detection method needs to be equipped with a feeding device, a detection device, and a discharge device, resulting in high detection costs, because the feeding, detection and discharge are carried out in sequence, resulting in low detection efficiency, long time consumption, and increased operating costs. .

The patent with the application number 201210501687.8 and the name "battery testing machine" discloses a testing machine. The conveyor belt is conveyed by a servo motor at a fixed distance. The discharge is carried out on the same machine. However, when this inspection machine is inspected, the battery in the area to be tested needs to be automatically absorbed by the transfer fixture through the transmission track, and then the battery is turned and pushed onto the conveyor belt. The servo motor will The conveyor belt is transported to the detection area at a fixed distance for detection. After the detection is completed, the conveyor belt continues to be transported to the receiving area at a fixed distance. It can be seen that the structure of the battery testing machine is complicated, and the conveyor belt is intermittently conveyed, that is, the battery is tested intermittently, and the detection efficiency is also low.

The patent with the application number 201010252321.2 and the name "battery product testing machine" discloses a testing machine for testing batteries in groups. By setting a number of molds on the conveyor belt that are transported with the conveyor belt and placing batteries in groups, each group of batteries can be On the same straight line, each group of batteries can be loaded, tested and output at the same time. However, pneumatic fingers are required to operate during loading, testing and output. When loading, a group of batteries is put into the mold by pneumatic fingers Inside, during inspection, a group of batteries is clamped from the mold by pneumatic fingers for inspection. It can be seen that the structure of the battery product testing machine is complex and the cost is high. In addition, the loading and testing are cumbersome, and the loading and testing are carried out separately, which affects the testing efficiency.

Contents of the invention

In order to solve the above-mentioned technical problems, the object of the present invention is to provide a battery on-line detection device with simple structure, which continuously feeds materials and performs detection and feeding simultaneously.

The battery on-line testing device of the present invention includes a conveying mechanism arranged on a bracket for conveying batteries, a clamping and detecting mechanism for clamping and detecting the batteries on the conveying mechanism, and a device for driving the clamping and detecting mechanism to reciprocate The driving mechanism, the clamping detection mechanism includes two fixed plates arranged in parallel to clamp/release several batteries at the same time, and the two fixed plates are straddled with a driver for driving the clamping/releasing batteries. The driving part is connected with a gantry frame, and the gantry frame is connected to the driving mechanism through transmission. The two fixed plates are provided with a number of probes that are respectively in contact with the positive and negative electrodes of each battery. A detection unit electrically connected to each of the probes is provided.

Further, several sensors for limiting the moving speed of the gantry are also provided on the bracket, which are respectively the first sensor, the second sensor, the third sensor and the fourth sensor arranged according to the conveying direction of the conveying mechanism.

Further, the bracket is also provided with two limit sensors for limiting the displacement of the gantry, which are respectively the first limit sensor set close to the first sensor and the set close to the fourth sensor. Second limit sensor.

Further, the detection unit is a single-channel circuit that electrically connects each probe to the detection instrument through several electronic switches.

Further, the detection unit is a multi-channel circuit that simultaneously electrically connects each probe to a detection instrument.

Further, the conveying mechanism is a tank chain driven by a servo motor.

Further, the driving mechanism includes a screw rod driven by a motor and a slide rail arranged parallel to the screw rod, and the motor is connected to the screw rod through a coupling.

Further, one end of the gantry is transmission-connected to the screw rod, and the other end is slidably connected to the slide rail.

Further, the driving part is a jaw cylinder.

Further, a guide column for sliding is connected between the ends of the two fixing plates.

By virtue of the above scheme, the battery on-line detection device of the present invention detects several batteries simultaneously during the tank chain conveyance through the clamping detection mechanism, without affecting the continuous conveyance of the tank chain, and realizes the online continuous detection; due to the detection The rhythm of the device is reasonable, and the structure is simple, while the manufacturing cost is reduced, the detection efficiency is greatly improved, and the operating cost is reduced.

The above description is only an overview of the technical solutions of the present invention. In order to understand the technical means of the present invention more clearly and implement them according to the contents of the description, the preferred embodiments of the present invention and accompanying drawings are described in detail below.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a partial structural schematic diagram of the clamping detection mechanism in the present invention;

Fig. 3 is a schematic diagram of a single-channel polling detection circuit in the present invention;

Fig. 4 is a schematic diagram of a multi-channel synchronous detection circuit in the present invention.

detailed description

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

Referring to FIG. 1 and FIG. 2 , a battery online detection device according to a preferred embodiment of the present invention includes a conveying mechanism 30 arranged on a bracket 20 for conveying the battery 10 , and clamping the battery 10 on the conveying mechanism 30 and a clamping detection mechanism 40 for detection, and a driving mechanism for driving the clamping detection mechanism 40 to reciprocate.

Specifically, the conveying mechanism 30 is a tank chain driven by a servo motor, and each battery 10 can be transported orderly and orderly by using the tank chain.

The battery on-line detection device of the present invention uses the clamping detection mechanism 40 to simultaneously detect several batteries 10 together during the transmission of the batteries 10. The clamping detection mechanism 40 includes two parallel-set, clamping/releasing several batteries 10 at the same time. A fixing plate 41 of a battery 10, two fixing plates 41 are straddled with a driving member 42 for driving it to clamp/unclamp the battery 10, the driving member 42 is connected with a gantry 43, and the gantry 43 is connected with the driving mechanism in transmission, and the two fixed The plate 41 is provided with several probes 44 which are respectively in contact with the positive and negative poles of the batteries 10 , and the two fixed plates 41 are also provided with detection units which are electrically connected with the probes 44 . Under the action of the driving mechanism, the clamping detection mechanism 40 can realize the synchronous speed with the tank chain; during the moving process, the clamping detection mechanism 40 utilizes the driving member 42 to realize the clamping of the two fixed plates 41 to a plurality of batteries 10; The probe 44 on the fixed plate 41 and the detection unit detect the battery during the movement of the clamping detection mechanism 40; after the detection is completed, use the driving member 42 to loosen the clamping of each battery 10 by the two fixing plates 41; the driving mechanism drives the clamp Holding the detection mechanism 40 to return quickly, enter the next detection cycle.

Specifically, the driving mechanism includes a screw mandrel 52 driven by a motor 51 and a slide rail 53 arranged parallel to the screw mandrel 52. Rod 52 is transmission connected. And one end of the gantry frame 43 is connected to the screw mandrel 52 through transmission, and the other end is slidably connected to the slide rail 53 . The motor 51 drives the screw rod 52 to rotate, and the screw rod 52 drives the gantry frame 43 to slide along the slide rail 53, so that the gantry frame 43 drives the two fixing plates 41 to reciprocate.

In the present invention, the driver 42 that drives the two fixing plates 41 to clamp/unclamp the battery 10 is a jaw cylinder, and the jaw cylinder is fixed on the surface of the gantry 43 facing the bracket 20 .

In order to ensure that the two fixed plates 41 can move relatively smoothly under the drive of the jaw cylinder, a guide post 45 for sliding thereof can be connected between the ends of the two fixed plates 41 .

In order to accurately control the clamping detection mechanism 40 to move synchronously with the tank chain and quickly return to the next detection cycle, the present invention sets a number of sensors on the bracket 20 to limit the moving speed of the gantry 43, which are respectively set according to the transmission direction of the conveying mechanism 30 The first sensor 61, the second sensor 62, the third sensor 63 and the fourth sensor 64 are provided on the gantry 43 with sensors inductive to each sensor, such as photoelectric sensors. In the present invention, the position point where the first sensor 61 is located is the origin of the action of the clamping detection mechanism 40, the position point where the second sensor 62 is located is the clamping point where the clamping detection mechanism 40 clamps each battery 10, and the third sensor 63 The position point is the loosening point where the clamping detection mechanism 40 releases each battery 10 , and the position point where the fourth sensor 64 is located is the return point where the clamping detection mechanism 40 reversely returns to the first sensor 61 . Certainly, each sensor and driving mechanism must be electrically connected with the control chip, and the control chip controls the driving mechanism according to the signal fed back by each sensor, so that the driving mechanism drives the clamping detection mechanism 40 to reciprocate, and in the process of clamping detection mechanism 40 reciprocating movement Control its acceleration, maintain a constant speed, and decelerate.

The four position points (origin, clamping point, loosening point and return point) in the present invention are set by four sensors, of course, in order to ensure the accuracy, a servo absolute value encoder can be set on the tank chain Or set an incremental encoder and origin sensor to realize the judgment of four position points.

Because the detection of the battery 10 by the clamping detection mechanism 40 is synchronized with the transmission of the tank chain, the motion control of each sensor and drive mechanism to the clamping detection mechanism 40 is as follows:

1. The driving mechanism first accelerates the clamping detection mechanism 40 from the first sensor 61 to the second sensor 62. At this time, the speed of the clamping detection mechanism 40 reaches the transmission speed V0 of the tank chain, and clamps at the second sensor 62. holding a number of batteries 10;

2. The drive mechanism continues to make the clamping detection mechanism 40 move at a constant speed from the second sensor 62 to the third sensor 63 at a speed V0. During the uniform motion, the clamping detection mechanism 40 completes detection of each battery 10 and Unclamp each battery 10 at the third sensor 63 place, make each battery 10 continue to convey on the tank chain;

3. The driving mechanism drives the clamping detection mechanism 40 to decelerate from the third sensor 63 to the fourth sensor 64 to prepare for the reversing of the clamping detection mechanism 40. When the clamping detection mechanism 40 moves to the fourth sensor 64 When the speed drops to 0, the reversing is realized;

4. The driving mechanism drives the clamping detection mechanism 40 to accelerate from the direction of the fourth sensor 64, quickly returns to the second sensor 62 at the maximum speed Vmax, and then decelerates the clamping detection mechanism 40 from the second sensor 62 to the first sensor At 61, prepare for the reversing of the clamping detection mechanism 40. When the clamping detection mechanism 40 decelerates to the first sensor 61, the speed is 0, and the direction change is realized;

5. The driving mechanism re-drives the clamping detection mechanism 40 to accelerate forward from the first sensor 61 to the second sensor 62, realizing the same speed as the tank chain;

6. Same as step 2 above, enter the next detection cycle.

It can be seen that the detection and delivery of the batteries 10 are carried out synchronously, that is, the simultaneous detection of multiple batteries 10 is completed during the delivery of the batteries 10 .

In order to prevent the clamping detection mechanism 40 from not reversing in time at the first sensor 61 and the fourth sensor 64, two limit sensors that limit the displacement of the gantry 43 can be set on the bracket 20, which are respectively close to the first sensor 61. The first limit sensor 65 is set, and the second limit sensor 66 is set close to the fourth sensor 64 .

The two limit points are realized by two limit sensors. Same as the setting of the above four position points, the two limit points can also be set by setting a servo absolute encoder on the tank chain or setting an incremental encoder and the origin The sensor is used to realize the determination of the two limit points.

In the present invention, the detection unit can be a single-channel circuit that each probe 44 is electrically connected with the detection instrument by several electronic switches; it can also be a multi-channel circuit that each probe 44 is electrically connected with the detection instrument at the same time, as shown in Figure 3 and Figure 4 shows. The single-channel circuit polls and detects each battery by sequentially closing and opening each electronic switch, and the closing and opening switching speed of the electronic switch can be between 5-100 ms; while the multi-channel circuit can detect each battery 10 at the same time.

The online detection process is specifically shown in Figure 1. The clamping detection mechanism 40 simultaneously clamps 10 batteries 10 at the second sensor 62. At this time, it moves to the third sensor 63 at the same speed as the tank chain at a constant speed. Loosen each battery 10 at 63, so that each battery 10 is transported into the next link with the tank chain, and the clamping detection mechanism 40 uses each probe 44 and The detection unit has finished detecting the 10 batteries 10; after that, the clamping detection mechanism 40 quickly returns to continue to clamp and detect the batteries 10 transported by the tank chain. It can be seen that when the clamping detection mechanism 40 reaches the second sensor 62 after deceleration, reversing, acceleration, re-deceleration, and re-reversing from the third sensor 63, the tank chain has been continuously conveying without interruption. , and the clamping detection mechanism 40 can continue to detect the next group of batteries 10 on the tank chain when entering the next round of detection after completing the previous round of detection, without missing detection, and the rhythm is reasonable.

To sum up, the battery on-line detection device of the present invention detects several batteries simultaneously during the tank chain conveyance process through the clamping detection mechanism, does not affect the continuous conveyance of the tank chain, and realizes online continuous detection; The rhythm of the device is reasonable, and the structure is simple, while the manufacturing cost is reduced, the detection efficiency is greatly improved, and the operating cost is reduced.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. It should be pointed out that for those of ordinary skill in the art, some improvements can be made without departing from the technical principle of the present invention. and modifications, these improvements and modifications should also be considered as the protection scope of the present invention.

Claims (6)

1. An online battery detection device, characterized in that: it includes a conveying mechanism (30) arranged on a support (20) for conveying batteries, clamping and detecting the battery (10) on the conveying mechanism (30) The clamping detection mechanism (40), and the driving mechanism that drives the clamping detection mechanism (40) to reciprocate, the clamping detection mechanism (40) includes two parallel arrangements, simultaneously clamping/releasing several batteries (10) of the fixed plate (41), the two fixed plates (41) are straddled with a driver (42) that drives it to clamp/unclamp the battery (10), and the driver (42) is connected with a gantry frame (43), the gantry frame (43) is connected to the driving mechanism by transmission, and the two fixed plates (41) are provided with a plurality of probes (44) which are respectively in contact with the positive and negative electrodes of each battery (10). ), the two fixed plates (41) are also provided with a detection unit electrically connected to each of the probes (44); The support (20) is also provided with several sensors that limit the moving speed of the gantry (43), which are respectively the first sensor (61) and the second sensor arranged according to the transmission direction of the conveying mechanism (30). (62), the third sensor (63) and the fourth sensor (64); The bracket (20) is also provided with two limit sensors for limiting the displacement of the gantry (43), which are respectively the first limit sensor (65) and the first limit sensor (65) arranged near the first sensor (61). A second limit sensor (66) arranged near the fourth sensor (64); The drive mechanism comprises a screw mandrel (52) driven by a motor (51), a slide rail (53) arranged parallel to the screw mandrel (52), and the motor (51) is connected to the Said screw mandrel (52) transmission connection; One end of the gantry frame (43) is drive-connected to the screw rod (52), and the other end is slidably connected to the slide rail (53). 2 . The online battery testing device according to claim 1 , wherein the testing unit is a single-channel circuit that electrically connects each probe to the testing instrument through a plurality of electronic switches. 3 . 3. The battery on-line detection device according to claim 1, wherein the detection unit is a multi-channel circuit that electrically connects each probe to the detection instrument at the same time. 4. The online battery testing device according to claim 1, characterized in that: the conveying mechanism (30) is a tank chain driven by a servo motor. 5. The battery online detection device according to claim 1, characterized in that: the driving member (42) is a jaw cylinder. 6. The battery online testing device according to claim 1, characterized in that: a guide column (45) for sliding is connected between the ends of the two fixing plates (41).