CN103335798B - A kind of soft package lithium battery air tightness detection machine and detection method thereof - Google Patents

A kind of soft package lithium battery air tightness detection machine and detection method thereof Download PDF

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Publication number
CN103335798B
CN103335798B CN201310263190.1A CN201310263190A CN103335798B CN 103335798 B CN103335798 B CN 103335798B CN 201310263190 A CN201310263190 A CN 201310263190A CN 103335798 B CN103335798 B CN 103335798B
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China
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charging tray
lithium battery
soft package
package lithium
assembly
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CN201310263190.1A
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Chinese (zh)
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CN103335798A (en
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张伦
郭登旺
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东莞市骏泰精密机械有限公司
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Abstract

The invention discloses a kind of soft package lithium battery air tightness detection machine, its frame installing charging tray material loading assembly, charging tray blanking assembly, NG rejects assembly, charging tray conveyer belt, feeding manipulator, blanking mechanical hand, air tightness test assembly, transfer conveying robot and barcode scanning assembly, barcode scanning assembly comprises the first ccd image sensor of the battery coding for scanning the soft package lithium battery on charging tray, air tightness test assembly comprises vacuum leak detection cavity, vavuum pump, the second ccd image sensor and line laser marker, vacuum leak detection cavity comprises test lower chamber and test upper cavity, this soft package lithium battery air tightness detection machine is coordinated to control by master controller, can complete efficiently soft package lithium battery air-tightness detects, structural design novelty, automaticity is high and reliable and stable. the invention also discloses a kind of soft package lithium battery air-tightness detection method, the method can complete efficiently soft package lithium battery air-tightness and detect, and reliable and stable.

Description

A kind of soft package lithium battery air tightness detection machine and detection method thereof

Technical field

The present invention relates to checkout gear technical field, relate in particular to a kind of soft package lithium battery air tightness detection machine and detection method thereof.

Background technology

As a kind of new-type battery structure, soft package lithium battery application is more and more extensive, the advantages such as for traditional lithium ion battery, soft package lithium battery has that volume is little, lightweight, specific energy is high, safe, flexible design.

For ensureing the product quality of soft package lithium battery, in soft package lithium battery manufacture process, production firm must carry out corresponding air-tightness detection to soft package lithium battery, detects soft package lithium battery and whether exist the situation of gas leakage. Air-tightness detects as the necessary operation in soft package lithium battery process of manufacture, how effectively and rapidly soft package lithium battery is carried out to air-tightness and detects and become numerous production firms and endeavour the problem solving.

Summary of the invention

The object of the present invention is to provide a kind of soft package lithium battery air tightness detection machine, this soft package lithium battery air tightness detection machine can complete efficiently soft package lithium battery air-tightness and detect, structural design novelty, and automaticity is high and reliable and stable.

Another object of the present invention is to provide a kind of soft package lithium battery air-tightness detection method, this soft package lithium battery air-tightness detection method can complete efficiently soft package lithium battery air-tightness and detect, reliable and stable.

For achieving the above object, the present invention is achieved through the following technical solutions.

A kind of soft package lithium battery air tightness detection machine, include frame, be installed in the charging tray material loading assembly of frame material loading side, be installed in the charging tray blanking assembly of frame blanking side, the NG that is installed in charging tray blanking assembly side rejects assembly, be installed in the charging tray conveyer belt of frame top, feeding manipulator between charging tray material loading assembly and the feed side of charging tray conveyer belt, blanking mechanical hand between charging tray blanking assembly and the exit side of charging tray conveyer belt, be installed in the air tightness test assembly of frame upper end and the transfer conveying robot between middle part and the air tightness test assembly of charging tray conveyer belt, the side of charging tray conveyer belt is equiped with barcode scanning assembly between feeding manipulator and transfer conveying robot, and barcode scanning assembly includes the first ccd image sensor of the battery coding for scanning the soft package lithium battery on charging tray, air tightness test assembly includes vacuum leak detection cavity, vacuum leak detection cavity is fitted with vavuum pump, vacuum leak detection cavity includes test lower chamber and is installed in opening or closing the test upper cavity of test lower chamber top, test lower chamber is installed in frame, and frame is equiped with the second ccd image sensor and inclination in the top of vacuum leak detection cavity and is projeced into the line laser marker of soft package lithium battery, this soft package lithium battery air tightness detection machine is fitted with master controller, and master controller is rejected electrical component with charging tray material loading assembly, feeding manipulator, charging tray conveyer belt, the first ccd image sensor, transfer conveying robot, vavuum pump, the second ccd image sensor, line laser marker, blanking mechanical hand, charging tray blanking assembly, NG respectively and is connected.

Wherein, described NG rejects assembly and includes NG rejecting manipulator and be positioned at NG the NG output band of rejecting the blowing side of manipulator, and NG rejects manipulator and is electrically connected with described master controller.

Wherein, described charging tray material loading assembly and described charging tray blanking assembly include respectively movable part and are installed in the drive motors of described frame, movable part is fitted with the first screw mandrel of vertical extension, the power output shaft of drive motors drives and is connected with the first screw mandrel, the first screw mandrel is fitted with the first feed screw nut who is installed in movable part, the upper end of movable part is provided with the bearing surface of taking for taking material bearing disc, and drive motors is electrically connected with described master controller.

Wherein, the front of described charging tray offers two row and is even spaced apart battery standing groove, and described air tightness test assembly includes two second ccd image sensors corresponding with the soft package lithium battery of corresponding line respectively.

Wherein, corresponding described the first ccd image sensor of described frame and described the second ccd image sensor are equiped with respectively installing rack, installing rack is equiped with the second screw mandrel of vertical extension, the second screw mandrel is fitted with folded feed screw nut, the second feed screw nut is equiped with fixed block, and the first ccd image sensor and the second ccd image sensor are installed in respectively corresponding fixed block.

Wherein, described feeding manipulator, described blanking mechanical hand and described transfer conveying robot include respectively gas pawl, are installed in the fixed support of described frame, each fixed support is equiped with respectively servomotor, fixed support is fitted with the 3rd screw mandrel, the power output shaft of servomotor drives and is connected with corresponding the 3rd screw mandrel, the 3rd screw mandrel is fitted with the 3rd feed screw nut, the 3rd feed screw nut is fitted with gas pawl fixed mount, gas pawl is installed in corresponding gas pawl fixed mount, and each servomotor is electrically connected with described master controller respectively.

A kind of soft package lithium battery air-tightness detection method, includes following processing step, is specially:

A, soft package lithium battery are positioned in the battery standing groove of charging tray, and feeding manipulator captures charging tray and soft package lithium battery is sent to charging tray conveyer belt with charging tray;

B, charging tray move to the below of the first ccd image sensor with charging tray conveyer belt, the battery coding of the soft package lithium battery in the first ccd image sensor scanning charging tray battery standing groove;

C, charging tray after the first ccd image sensor scanning move to transfer conveying robot crawl position with charging tray conveyer belt, and transfer conveying robot captures charging tray and also soft package lithium battery is sent to charging tray in the test lower chamber of vacuum leak detection cavity;

The test upper cavity of d, closed vacuum leak detection cavity, line laser marker is portrayed laser rays in soft package lithium battery surface, and the second ccd image sensor gathers soft package lithium battery surface image signal;

E, startup vavuum pump also vacuumize processing to the inside of vacuum leak detection cavity, need reach-90KPa of the atmospheric pressure value of vacuum leak detection inside cavity;

Soft package lithium battery surface image signal after f, the second ccd image sensor collection distortion, the picture signal that before and after master controller contrast vacuumizes, the second ccd image sensor gathers the horizontal-shift value △ y that calculates laser rays, wherein, according to the crevice projection angle value β of line laser marker and calculate the change value of thickness △ x of soft package lithium battery according to formula △ x=△ y × tan β; In the time of △ x > 0.2mm, there is gas leakage in soft package lithium battery; In the time of △ x < 0.2mm, there is not gas leakage in soft package lithium battery;

G, tested after, the test upper cavity of vacuum leak detection cavity is opened, transfer conveying robot captures charging tray and also the soft package lithium battery after airtight test is sent to charging tray conveyer belt with charging tray;

H, charging tray move to blanking mechanical hand crawl position with charging tray conveyer belt, and blanking mechanical hand captures charging tray and soft package lithium battery is sent to charging tray blanking module position with charging tray;

I, NG reject manipulator and capture the soft package lithium battery that has gas leakage according to the battery code signal of soft package lithium battery, and the soft package lithium battery that has gas leakage is sent to NG output band.

Wherein, the time that step e vacuumizes is less than 2s.

Beneficial effect of the present invention is: a kind of soft package lithium battery air tightness detection machine of the present invention, its frame installing charging tray material loading assembly, charging tray blanking assembly, NG rejects assembly, charging tray conveyer belt, feeding manipulator, blanking mechanical hand, air tightness test assembly, transfer conveying robot and barcode scanning assembly, barcode scanning assembly comprises the first ccd image sensor of the battery coding for scanning the soft package lithium battery on charging tray, air tightness test assembly comprises vacuum leak detection cavity, vavuum pump, the second ccd image sensor and line laser marker, vacuum leak detection cavity comprises test lower chamber and test upper cavity, this soft package lithium battery air tightness detection machine is moved and completes soft package lithium battery air-tightness and automatically detected by main controller controls charging tray material loading assembly, feeding manipulator, charging tray conveyer belt, the first ccd image sensor, transfer conveying robot, vavuum pump, the second ccd image sensor, line laser marker, blanking mechanical hand, charging tray blanking assembly, NG rejecting assembly, so soft package lithium battery air tightness detection machine of the present invention can complete efficiently soft package lithium battery air-tightness and detect, structural design novelty, automaticity is high and reliable and stable.

Another beneficial effect of the present invention is: a kind of soft package lithium battery air-tightness detection method of the present invention, it includes following processing step, be specially: a, soft package lithium battery are positioned in the battery standing groove of charging tray, feeding manipulator captures charging tray and soft package lithium battery is sent to charging tray conveyer belt with charging tray; B, charging tray move to the below of the first ccd image sensor with charging tray conveyer belt, the battery coding of the soft package lithium battery in the first ccd image sensor scanning charging tray battery standing groove; C, charging tray after the first ccd image sensor scanning move to transfer conveying robot crawl position with charging tray conveyer belt, and transfer conveying robot captures charging tray and also soft package lithium battery is sent to charging tray in the test lower chamber of vacuum leak detection cavity; The test upper cavity of d, closed vacuum leak detection cavity, line laser marker is portrayed laser rays in soft package lithium battery surface, and the second ccd image sensor gathers soft package lithium battery surface image signal; E, startup vavuum pump also vacuumize processing to the inside of vacuum leak detection cavity, need reach-90KPa of the atmospheric pressure value of vacuum leak detection inside cavity; Soft package lithium battery surface image signal after f, the second ccd image sensor collection distortion, the picture signal that before and after master controller contrast vacuumizes, the second ccd image sensor gathers the horizontal-shift value △ y that calculates laser rays, wherein, according to the crevice projection angle value β of line laser marker and calculate the change value of thickness △ x of soft package lithium battery according to formula △ x=△ y × tan β; In the time of △ x > 0.2mm, there is gas leakage in soft package lithium battery; In the time of △ x < 0.2mm, there is not gas leakage in soft package lithium battery; G, tested after, the test upper cavity of vacuum leak detection cavity is opened, transfer conveying robot captures charging tray and also the soft package lithium battery after airtight test is sent to charging tray conveyer belt with charging tray; H, charging tray move to blanking mechanical hand crawl position with charging tray conveyer belt, and blanking mechanical hand captures charging tray and soft package lithium battery is sent to charging tray blanking module position with charging tray; I, NG reject manipulator and capture the soft package lithium battery that has gas leakage according to the battery code signal of soft package lithium battery, and the soft package lithium battery that has gas leakage is sent to NG output band. By above-mentioned air-tightness detection method, the present invention can complete efficiently soft package lithium battery air-tightness and detect, and reliable and stable.

Brief description of the drawings

Utilize accompanying drawing to be further detailed the present invention below, but the embodiment in accompanying drawing does not form any limitation of the invention.

Fig. 1 is plan structure schematic diagram of the present invention.

Fig. 2 is main TV structure schematic diagram of the present invention.

Fig. 3 is left TV structure schematic diagram of the present invention.

Fig. 4 is the structural representation of vacuum leak detection cavity of the present invention.

Fig. 5 is the work schematic diagram that air-tightness of the present invention detects.

Fig. 6 is the schematic diagram that air-tightness of the present invention detects.

In Fig. 1 to Fig. 6, include:

1---frame 21---charging tray material loading assembly

22---charging tray blanking assembly 23---movable part

24---drive motors 3---NG rejects assembly

NG exports band to 31---NG rejects manipulator 32---

4---charging tray conveyer belt 51---feeding manipulator

52---blanking mechanical hand 53---transfer conveying robot

6---barcode scanning assembly 61---first ccd image sensor

7---air tightness test assembly 71---vacuum leak detection cavity

711---test lower chamber 712---test upper cavity

72---second ccd image sensor 73---line laser marker

8---installing rack.

Detailed description of the invention

Below in conjunction with concrete embodiment, the present invention will be described.

As shown in Figure 1 to Figure 3, a kind of soft package lithium battery air tightness detection machine, include frame 1, also include the charging tray material loading assembly 21 that is installed in frame 1 material loading side, be installed in the charging tray blanking assembly 22 of frame 1 blanking side, the NG that is installed in charging tray blanking assembly 22 sides rejects assembly 3, be installed in the charging tray conveyer belt 4 of frame 1 top, feeding manipulator 51 between charging tray material loading assembly 21 and the feed side of charging tray conveyer belt 4, blanking mechanical hand 52 between charging tray blanking assembly 22 and the exit side of charging tray conveyer belt 4, be installed in the air tightness test assembly 7 of frame 1 upper end and the transfer conveying robot 53 between middle part and the air tightness test assembly 7 of charging tray conveyer belt 4, the side of charging tray conveyer belt 4 is equiped with barcode scanning assembly 6 between feeding manipulator 51 and transfer conveying robot 53, and barcode scanning assembly 6 includes the first ccd image sensor 61 of the battery coding for scanning the soft package lithium battery on charging tray, air tightness test assembly 7 includes vacuum leak detection cavity 71, vacuum leak detection cavity 71 is fitted with vavuum pump, vacuum leak detection cavity 71 includes test lower chamber 711 and is installed in opening or closing the test upper cavity 712 of test lower chamber 711 tops, test lower chamber 711 is installed in frame 1, and frame 1 is equiped with the second ccd image sensor 72 and tilts to be projeced into the line laser marker 73 of soft package lithium battery in the top of vacuum leak detection cavity 71, this soft package lithium battery air tightness detection machine is fitted with master controller, and master controller is rejected assembly 3 and is electrically connected with charging tray material loading assembly 21, feeding manipulator 51, charging tray conveyer belt 4, the first ccd image sensor 61, transfer conveying robot 53, vavuum pump, the second ccd image sensor 72, line laser marker 73, blanking mechanical hand 52, charging tray blanking assembly 22, NG respectively.

In the course of work of the present invention, master controller is by corresponding control program control and coordinate charging tray material loading assembly 21, feeding manipulator 51, charging tray conveyer belt 4, the first ccd image sensor 61, transfer conveying robot 53, vavuum pump, the second ccd image sensor 72, line laser marker 73, blanking mechanical hand 52, charging tray blanking assembly 22, NG and reject assembly 3 and move. Wherein, feeding manipulator 51 captures via the charging tray in 21 jackings of charging tray material loading assembly, in the battery standing groove of charging tray, be placed with soft package lithium battery, feeding manipulator 51 captures charging tray and charging tray is positioned on charging tray conveyer belt 4, is positioned at soft package lithium battery on charging tray along with charging tray is transmitted together; When charging tray is during through the below of the first ccd image sensor 61, the first ccd image sensor 61 scans the battery coding of the soft package lithium battery in charging tray battery standing groove; After scanning, charging tray continues, along with charging tray conveyer belt 4 continues to move, then to be captured and be transferred in test lower chamber 711 by transfer conveying robot 53; The then test upper cavity 712 of closed vacuum leak detection cavity 71, line laser marker 73 is portrayed laser rays in soft package lithium battery surface, the second ccd image sensor 72 gathers soft package lithium battery surface image signal, and vavuum pump moves and makes the reach-90KPa of vacuum of vacuum leak detection cavity 71 inside; Under suction function, soft package lithium battery deforms, accordingly, portray the laser rays occurrence positions skew in soft package lithium battery surface, master controller is by measuring the horizontal offset of laser rays and calculating the amounts of thickness variation of soft package lithium battery in conjunction with the crevice projection angle value of line laser marker 73, in the time that the amounts of thickness variation of soft package lithium battery exceedes certain value, there is gas leakage situation in soft package lithium battery; In the time that the amounts of thickness variation of soft package lithium battery does not exceed certain value, there is not gas leakage situation in soft package lithium battery.

Soft package lithium battery after air-tightness detects is sent to charging tray conveyer belt with charging tray by transfer conveying robot 53, then blanking mechanical hand 52 captures charging tray and soft package lithium battery is sent to charging tray blanking assembly 22 positions, now, charging tray blanking assembly 22 jacking charging trays, NG rejects assembly 3 soft package lithium battery that has gas leakage is rejected.

Comprehensive above-mentioned situation is known, and soft package lithium battery air tightness detection machine of the present invention can automatically and efficiently complete soft package lithium battery air-tightness and detect, and automaticity, operating efficiency are high and reliable and stable.

As preferred embodiment, NG rejects assembly 3 and includes NG and reject manipulator 31 and be positioned at NG output that NG rejects the blowing side of manipulator 31 and be with 32, NG to reject manipulator 31 to be electrically connected with master controller. When work, NG rejects manipulator 31 and captures from charging tray blanking assembly 22 positions the soft package lithium battery that has gas leakage, and then, NG rejecting manipulator 31 is positioned over NG output by the soft package lithium battery that has gas leakage and is with 32.

As preferred embodiment, charging tray material loading assembly 21 and charging tray blanking assembly 22 include respectively movable part 23 and are installed in the drive motors 24 of frame 1, movable part 23 is fitted with the first screw mandrel of vertical extension, the power output shaft of drive motors 24 drives and is connected with the first screw mandrel, the first screw mandrel is fitted with the first feed screw nut who is installed in movable part 23, the upper end of movable part 23 is provided with the bearing surface of taking for taking material bearing disc, and drive motors 24 is electrically connected with master controller. Need further to explain, charging tray material loading assembly 21 and charging tray blanking assembly 22 have respectively the effect of buffer memory jacking, capture before charging tray at feeding manipulator 51, the charging tray that is placed with soft package lithium battery is cached in the movable part 23 of charging tray material loading assembly 21, in the time that feeding manipulator 51 is prepared to capture charging tray, drive motors 24 drives the first screw mandrel to rotate and drives on movable part 23 and moves with jacking charging tray; Same, in the time that NG manipulator captures the soft package lithium battery that has gas leakage, drive motors 24 drives corresponding the first screw mandrel to rotate and makes movable part 23 keep jacking state, completes soft package lithium battery capture after operation at NG manipulator, and drive motors 24 drives movable part 23 to move down with buffer memory charging tray.

As preferred embodiment, the front of charging tray of the present invention offers two row and is even spaced apart battery standing groove, and air tightness test assembly 7 includes two second ccd image sensors 72 corresponding with the soft package lithium battery of corresponding line respectively; Carrying out in air-tightness testing process, two the second ccd image sensor 72 synchronization actions also gather the surface image signal of the soft package lithium battery of corresponding line simultaneously.

As preferred embodiment, corresponding the first ccd image sensor 61 of frame 1 and the second ccd image sensor 72 are equiped with respectively installing rack 8, installing rack 8 is equiped with the second screw mandrel of vertical extension, the second screw mandrel is fitted with folded feed screw nut, the second feed screw nut is equiped with fixed block, and the first ccd image sensor 61 and the second ccd image sensor 72 are installed in respectively corresponding fixed block. In the course of work of the present invention, operating personnel can regulate the height of corresponding the first ccd image sensor 61 and the second ccd image sensor 72 as required, to make the first ccd image sensor 61 and the second ccd image sensor 72 can gather in all directions the surface image signal of soft package lithium battery; Wherein, in the time regulating corresponding the first ccd image sensor 61 and the second ccd image sensor 72, operating personnel only need rotate the second screw mandrel.

As preferred embodiment, feeding manipulator 51, blanking mechanical hand 52 and transfer conveying robot 53 include respectively gas pawl, are installed in the fixed support of frame 1, each fixed support is equiped with respectively servomotor, fixed support is fitted with the 3rd screw mandrel, the power output shaft of servomotor drives and is connected with corresponding the 3rd screw mandrel, the 3rd screw mandrel is fitted with the 3rd feed screw nut, the 3rd feed screw nut is fitted with gas pawl fixed mount, gas pawl is installed in corresponding gas pawl fixed mount, and each servomotor is electrically connected with master controller respectively.

A kind of soft package lithium battery air-tightness detection method, includes following processing step, is specially:

A, soft package lithium battery are positioned in the battery standing groove of charging tray, and feeding manipulator 51 captures charging tray and soft package lithium battery is sent to charging tray conveyer belt 4 with charging tray;

B, charging tray move to the below of the first ccd image sensor 61 with charging tray conveyer belt 4, the first ccd image sensor 61 scans the battery coding of the soft package lithium battery in charging tray battery standing groove;

C, charging tray after the first ccd image sensor 61 scanning move to transfer conveying robot 53 crawl positions with charging tray conveyer belt 4, and transfer conveying robot 53 captures charging tray and soft package lithium battery is sent to charging tray in the test lower chamber 711 of vacuum leak detection cavity 71;

The test upper cavity 712 of d, closed vacuum leak detection cavity 71, line laser marker 73 is portrayed laser rays in soft package lithium battery surface, and the second ccd image sensor 72 gathers soft package lithium battery surface image signal;

E, startup vavuum pump also vacuumize processing to the inside of vacuum leak detection cavity 71, need the reach-90KPa of atmospheric pressure value of vacuum leak detection cavity 71 inside;

The soft package lithium battery surface image signal that f, the second ccd image sensor 72 gather after distortion, the picture signal that before and after master controller contrast vacuumizes, the second ccd image sensor 72 gathers the horizontal-shift value △ y that calculates laser rays, wherein, according to the crevice projection angle value β of line laser marker 73 and calculate the change value of thickness △ x of soft package lithium battery according to formula △ x=△ y × tan β; In the time of △ x > 0.2mm, there is gas leakage in soft package lithium battery; In the time of △ x < 0.2mm, there is not gas leakage in soft package lithium battery;

G, tested after, the test upper cavity 712 of vacuum leak detection cavity 71 is opened, transfer conveying robot 53 captures charging tray and the soft package lithium battery after airtight test is sent to charging tray conveyer belt 4 with charging tray;

H, charging tray move to blanking mechanical hand 52 crawl positions with charging tray conveyer belt 4, and blanking mechanical hand 52 captures charging tray and soft package lithium battery is sent to charging tray blanking assembly 22 positions with charging tray;

I, NG reject manipulator 31 and capture the soft package lithium battery that has gas leakage according to the battery code signal of soft package lithium battery, and are with 32 by existing the soft package lithium battery leaking gas to be sent to NG output.

Wherein, the time that step e vacuumizes is less than 2s.

By above-mentioned soft package lithium battery air-tightness detection method, the present invention can complete efficiently soft package lithium battery air-tightness and detect, and reliable and stable.

Above content is only preferred embodiment of the present invention, for those of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, and this description should not be construed as limitation of the present invention.

Claims (7)

1. a soft package lithium battery air tightness detection machine, include frame (1), it is characterized in that: also include the charging tray material loading assembly (21) that is installed in frame (1) material loading side, be installed in the charging tray blanking assembly (22) of frame (1) blanking side, the NG that is installed in charging tray blanking assembly (22) side rejects assembly (3), be installed in the charging tray conveyer belt (4) of frame (1) top, be positioned at the feeding manipulator (51) between charging tray material loading assembly (21) and the feed side of charging tray conveyer belt (4), be positioned at the blanking mechanical hand (52) between charging tray blanking assembly (22) and the exit side of charging tray conveyer belt (4), be installed in the air tightness test assembly (7) of frame (1) upper end and be positioned at the transfer conveying robot (53) between middle part and the air tightness test assembly (7) of charging tray conveyer belt (4), the side of charging tray conveyer belt (4) is equiped with barcode scanning assembly (6) between feeding manipulator (51) and transfer conveying robot (53), and barcode scanning assembly (6) includes first ccd image sensor (61) of the battery coding for scanning the soft package lithium battery on charging tray, air tightness test assembly (7) includes vacuum leak detection cavity (71), vacuum leak detection cavity (71) is fitted with vavuum pump, vacuum leak detection cavity (71) includes test lower chamber (711) and is installed in opening or closing the test upper cavity (712) of test lower chamber (711) top, test lower chamber (711) is installed in frame (1), and frame (1) is equiped with the second ccd image sensor (72) and tilts to be projeced into the line laser marker (73) of soft package lithium battery in the top of vacuum leak detection cavity (71), this soft package lithium battery air tightness detection machine is fitted with master controller, and master controller is rejected assembly (3) and is electrically connected with charging tray material loading assembly (21), feeding manipulator (51), charging tray conveyer belt (4), the first ccd image sensor (61), transfer conveying robot (53), vavuum pump, the second ccd image sensor (72), line laser marker (73), blanking mechanical hand (52), charging tray blanking assembly (22), NG respectively.
2. a kind of soft package lithium battery air tightness detection machine according to claim 1, it is characterized in that: described NG rejects assembly (3) and includes NG rejecting manipulator (31) and be positioned at NG the NG output band (32) of rejecting the blowing side of manipulator (31), and NG rejects manipulator (31) and is electrically connected with described master controller.
3. a kind of soft package lithium battery air tightness detection machine according to claim 2, it is characterized in that: described charging tray material loading assembly (21) and described charging tray blanking assembly (22) include respectively movable part (23) and be installed in the drive motors (24) of described frame (1), movable part (23) is fitted with the first screw mandrel of vertical extension, the power output shaft of drive motors (24) drives and is connected with the first screw mandrel, the first screw mandrel is fitted with the first feed screw nut who is installed in movable part (23), the upper end of movable part (23) is provided with the bearing surface of taking for taking material bearing disc, drive motors (24) is electrically connected with described master controller.
4. a kind of soft package lithium battery air tightness detection machine according to claim 3, it is characterized in that: the front of described charging tray offers two row and is even spaced apart battery standing groove, described air tightness test assembly (7) includes two second ccd image sensors (72) corresponding with the soft package lithium battery of corresponding line respectively.
5. a kind of soft package lithium battery air tightness detection machine according to claim 4, it is characterized in that: corresponding described the first ccd image sensor of described frame (1) (61) and described the second ccd image sensor (72) are equiped with respectively installing rack (8), installing rack (8) is equiped with the second screw mandrel of vertical extension, the second screw mandrel is fitted with folded feed screw nut, the second feed screw nut is equiped with fixed block, and the first ccd image sensor (61) and the second ccd image sensor (72) are installed in respectively corresponding fixed block.
6. a soft package lithium battery air-tightness detection method, is characterized in that, includes following processing step, is specially:
A, soft package lithium battery are positioned in the battery standing groove of charging tray, and feeding manipulator (51) captures charging tray and soft package lithium battery is sent to charging tray conveyer belt (4) with charging tray;
B, charging tray move to the below of the first ccd image sensor (61) with charging tray conveyer belt (4), the battery coding of the soft package lithium battery in the first ccd image sensor (61) scanning charging tray battery standing groove;
C, charging tray after the first ccd image sensor (61) scanning move to transfer conveying robot (53) crawl position with charging tray conveyer belt (4), and transfer conveying robot (53) captures charging tray and also soft package lithium battery is sent to charging tray in the test lower chamber (711) of vacuum leak detection cavity (71);
The test upper cavity (712) of d, closed vacuum leak detection cavity (71), line laser marker (73) is portrayed laser rays in soft package lithium battery surface, and the second ccd image sensor (72) gathers soft package lithium battery surface image signal;
E, startup vavuum pump also vacuumize processing to the inside of vacuum leak detection cavity (71), need the reach-90KPa of atmospheric pressure value that vacuum leak detection cavity (71) is inner;
F, the second ccd image sensor (72) gather the soft package lithium battery surface image signal after distortion, the picture signal that before and after master controller contrast vacuumizes, the second ccd image sensor (72) gathers the horizontal-shift value △ y that calculates laser rays, wherein, according to the crevice projection angle value β of line laser marker (73) and calculate the change value of thickness △ x of soft package lithium battery according to formula △ x=△ y × tan β; In the time of △ x > 0.2mm, there is gas leakage in soft package lithium battery; In the time of △ x < 0.2mm, there is not gas leakage in soft package lithium battery;
G, tested after, the test upper cavity (712) of vacuum leak detection cavity (71) is opened, transfer conveying robot (53) captures charging tray and also the soft package lithium battery after airtight test is sent to charging tray conveyer belt (4) with charging tray;
H, charging tray move to blanking mechanical hand (52) crawl position with charging tray conveyer belt (4), and blanking mechanical hand (52) captures charging tray and soft package lithium battery is sent to charging tray blanking assembly (22) position with charging tray;
I, NG reject manipulator (31) and capture the soft package lithium battery that has gas leakage according to the battery code signal of soft package lithium battery, and the soft package lithium battery that has gas leakage is sent to NG output band (32).
7. a kind of soft package lithium battery air-tightness detection method according to claim 6, is characterized in that: the time that step e vacuumizes is less than 2s.
CN201310263190.1A 2013-06-27 2013-06-27 A kind of soft package lithium battery air tightness detection machine and detection method thereof CN103335798B (en)

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CN104290945B (en) * 2014-09-25 2016-09-07 惠州亿纬锂能股份有限公司 Automatically overlap marking device
CN104759933B (en) * 2015-03-13 2017-11-14 浙江畅尔智能装备股份有限公司 A kind of conveying device of the automatic production line of automobile brake pincers support
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CN105953986A (en) * 2016-07-25 2016-09-21 合肥力翔电池科技有限责任公司 Product air tightness detection device with automatic discharging function
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