Bare electrode size detection system

Abstract

A bare electrode size detection system disclosed by the present invention comprises a fixed table, a conveying line, a detection table and an optical imaging assembly, the conveying line is installed above the fixed table, the fixed table is fixedly provided with two groups of baffle plates at two sides of the conveying line, the conveying line is provided with a bare electrode between the two groups of baffle plates in a conveying manner, and the detection table is relatively perpendicular to the conveying line. One end of the detection table is arranged above the conveying line through a mounting base, a first sliding table air cylinder is arranged above the mounting base, the bottom of one end of the detection table is fixedly connected with the movable end of the first sliding table air cylinder, a second sliding table air cylinder is arranged on the side, close to an inlet of the conveying line, of the detection table, and a detection base is arranged at the movable end of the second sliding table air cylinder. A photoelectric sensor and a plurality of groups of ToF sensors arranged at multiple angles are mounted on the detection seat; and the optical imaging components are arranged above and below the bare electrode. The method has the advantages that the overall size of the naked battery cell and the width of the tab can be accurately and quickly measured effectively, the efficiency is high, and the accuracy is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of battery cell production, and in particular to a bare electrode size detection system. Background Art

[0002] During the battery cell manufacturing process, it is necessary to inspect the size of the bare battery cells after winding, including the width of the tabs and the overall size of the battery cells. With the development of technology, the size quality requirements of bare battery cells are getting higher and higher, and the accuracy requirements are getting higher and higher. The traditional measurement method is either manual measurement or the use of complex testing equipment. At present, most factories use caliper tools for manual measurement, which has low accuracy and slow detection speed. The use of testing equipment also requires complex operations. Although the accuracy is not low, the process is complicated, and it is increasingly difficult to meet market demand. The efficiency is low and the accuracy is difficult to guarantee. Summary of the invention

[0003] The purpose of the present invention is to provide a bare electrode size detection system, which can effectively realize the accurate and rapid measurement of the overall size of the bare battery cell and the width of the tab, with high efficiency and higher accuracy.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions: A bare electrode size detection system, characterized in that it includes a fixed table, a conveyor line, a detection table and an optical imaging component, the conveyor line is installed above the fixed table, and the fixed table is fixedly installed with two groups of baffles on both sides of the conveyor line, the conveyor line is provided with a bare electrode between the two groups of baffles, the detection table is arranged perpendicularly to the conveyor line, one end of the detection table is arranged above the conveyor line through a mounting seat, the mounting seat is arranged relatively parallel to the conveyor line, a first slide cylinder is arranged above the mounting seat, the bottom of one end of the detection table is fixedly connected to the movable end of the first slide cylinder, a second slide cylinder is arranged on the side of the detection table close to the entrance of the conveyor line, a detection seat is arranged on the movable end of the second slide cylinder, a photoelectric sensor and multiple groups of ToF sensors arranged at multiple angles are installed on the detection seat, and the optical imaging component is arranged above and below the bare electrode.

[0005] Preferably, a bellows is provided above the fixed platform at the inlet end of the conveyor line, the bellows runs through both sides of the conveyor line direction, an air outlet is provided on the top of the bellows, and a turbo fan is installed on the air outlet.

[0006] Preferably, the conveyor line includes two sets of conveyor belts arranged in parallel, a conveying motor is arranged between the two sets of conveyor belts above the fixed platform, the output end of the conveying motor is connected to a conveying wheel through a rotating shaft, and the conveying wheel is arranged at both ends of the conveyor belt and is transmission-connected to the conveyor belt.

[0007] Preferably, adjustable feet are provided at the bottom of the four corners of the fixing platform.

[0008] Preferably, the mounting seat is also provided with a set of slide rails in parallel on the outer side of the first slide cylinder, and the bottom of the detection platform moves along the slide rails.

[0009] Preferably, a lifting seat is screwed and fixedly mounted on the movable end of the second slide cylinder, a lifting cylinder is mounted on the lifting seat, and the output end of the lifting cylinder is fixedly connected to the top of the detection seat.

[0010] Preferably, one end of the detection seat is also provided with multiple groups of threaded mounting holes at equal intervals vertically, and the photoelectric sensor and the ToF sensor are fixedly connected through the threaded mounting holes in the connecting seat and the detection seat by bolts. There are three groups of ToF sensors, one of which is respectively installed at the outermost ends below the detection seat and is centrally arranged on both sides of the bare electrode, and the other group is installed in the middle above the detection seat and downwardly facing above the bare electrode. There are two groups of photoelectric sensors, which are respectively installed above the bare electrode body and the pole ear.

[0011] Preferably, a mounting rod is provided at the center of the top of the detection platform, one end of the mounting rod extends above the bare electrode on the conveyor line, and a group of optical imaging components is provided downwardly from one end of the mounting rod.

[0012] Preferably, a group of optical imaging components is disposed on the fixed platform below the entrance of the conveyor line, and fill light sources are disposed on both sides of the optical imaging components.

[0013] Preferably, an in-position sensor is provided on the side of the fixing platform close to the entrance of the conveying line and opposite to the bare electrode.

[0014] To sum up, the beneficial effects of the present invention are as follows: the advantage of the present invention is that the overall size of the bare cell and the width of the tab can be accurately and quickly measured through the ToF sensor, the photoelectric sensor and the optical imaging component. The two relatively arranged groups of ToF sensors can not only realize the measurement of the height of the bare cell by detecting the distance between them and the two sides of the bare cell in real time, but also effectively determine the placement of the bare cell through real-time distance detection. If it is found that the data on the same side continuously deviates, it can be determined that the bare cell is tilted and needs to be straightened or identified and judged by the subsequent optical imaging component. At the same time, since the transmission rate of the conveyor line is always constant, the ToF sensor and the photoelectric sensor realize the detection of the length and width of the tab of the bare cell through the signal change time of the sensor. The ToF sensor on the top of the detection table and the conveyor line are fixed at a certain height, so that the width of the bare cell can be effectively detected, and the identification data of the optical imaging component is used as proofreading and supplementary data. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a front view schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention from a top view; Figure 3 It is a schematic diagram of the overall working state structure of the present invention when viewed from above. DETAILED DESCRIPTION

[0016] The specific implementation manner of the present invention is further described below in conjunction with the accompanying drawings, and this embodiment does not constitute a limitation of the present invention.

[0017] like Figures 1 to 3 A bare electrode size detection system shown in the figure includes a fixed table 1, a conveyor line 2, a detection table 3 and an optical imaging component 4, the conveyor line 2 is installed above the fixed table 1, and two groups of baffles 5 are fixedly installed on the fixed table 1 on both sides of the conveyor line 2, and the conveyor line 2 is provided with a bare electrode between the two groups of baffles 5. The detection table 3 is arranged perpendicularly to the conveyor line 2, one end of the detection table 3 is arranged above the conveyor line 2 through a mounting seat 6, and the mounting seat 6 is arranged relatively parallel to the conveyor line 2, and a first slide cylinder 7 is arranged above the mounting seat 6, and the bottom of one end of the detection table 3 is fixedly connected to the movable end of the first slide cylinder 7, a second slide cylinder 8 is arranged on the side of the detection table 3 close to the entrance of the conveyor line 2, and a detection seat 9 is arranged on the movable end of the second slide cylinder 8, and a photoelectric sensor 10 and multiple groups of ToF sensors 11 arranged at multiple angles are installed on the detection seat 9, and the optical imaging component 4 is arranged above and below the bare electrode.

[0018] A wind box 12 is provided above the fixed platform 1 at the inlet end of the conveyor line 2. The wind box 12 passes through both sides of the conveyor line 2. An air outlet is provided on the top of the wind box 12, and a turbo fan 13 is installed on the air outlet.

[0019] The conveyor line 2 includes two sets of parallel conveyor belts 14. A conveyor motor 15 is arranged between the two sets of conveyor belts 14 above the fixed platform 1. The output end of the conveyor motor 15 is connected to a conveyor wheel 16 through a rotating shaft. The conveyor wheel 16 is arranged at both ends of the conveyor belt 14 and is transmission-connected to the conveyor belt 14.

[0020] Adjustable feet 17 are provided at the bottom of the four corners of the fixing platform 1 to adjust the overall height and avoid tilting.

[0021] The mounting seat 6 is also provided with a set of slide rails 18 in parallel on the outer side of the first slide cylinder 7 , and the bottom of the testing platform 3 moves along the slide rails 18 in a limited manner.

[0022] A lifting seat 19 is screwed and fixedly installed on the movable end of the second slide cylinder 8 , and a lifting cylinder 20 is installed on the lifting seat 19 . The output end of the lifting cylinder 20 is fixedly connected to the top of the detection seat 9 .

[0023] One end of the detection seat 9 is also provided with multiple groups of threaded mounting holes 21 at equal intervals vertically. The photoelectric sensor 10 and the ToF sensor 11 are fixedly connected to the threaded mounting holes 21 in the detection seat 9 through the connecting seat 22 and bolts. There are three groups of ToF sensors 11, one of which is installed at the outermost ends below the detection seat 9, and is centered on both sides of the bare electrode. The other group is installed in the middle of the upper part of the detection seat 9, and is downward facing the top of the bare electrode. There are two groups of photoelectric sensors 10, which are respectively installed above the bare electrode body and the pole ear.

[0024] A mounting rod 23 is disposed at the center of the top of the detection platform 3 , one end of the mounting rod 23 extends above the bare electrode on the conveyor line 2 , and a group of optical imaging components 4 are disposed downwardly from one end of the mounting rod 23 .

[0025] The fixing platform 1 is provided with a group of optical imaging components 4 below the entrance of the conveying line 2 , and both sides of the optical imaging components 4 are provided with fill light sources 24 .

[0026] A position sensor 25 is provided on the side of the fixing platform 1 close to the entrance of the conveying line 2 and opposite to the bare electrode, for detecting the position of the bare electrode.

[0027] The advantage of the present invention is that it can realize accurate and rapid measurement of the overall size of the bare battery cell and the width of the tab through ToF sensors, photoelectric sensors and optical imaging components. The two groups of ToF sensors arranged relatively to each other can not only realize the measurement of the height of the bare battery cell by detecting the distance between them and the two sides of the bare battery cell in real time, but also effectively determine the placement of the bare battery cell through real-time distance detection. If it is found that the data on the same side continuously deviates, it can be determined that the bare battery cell is tilted and needs to be straightened or identified and judged by subsequent optical imaging components. At the same time, since the transmission rate of the conveyor line is always constant, the ToF sensor and the photoelectric sensor realize the detection of the length and width of the tab of the bare battery cell through the signal change time of the sensor. The ToF sensor on the top of the detection table is fixed at the height of the conveyor line, so as to effectively detect the width of the bare battery cell, and the identification data of the optical imaging component is used as proofreading and supplementary data.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions should also be deemed to fall within the protection scope of the technical solution of the present invention.

Claims

1. A bare electrode size detection system, characterized in that: It includes a fixed table, a conveyor line, a detection table and an optical imaging component. The conveyor line is installed above the fixed table. Two groups of baffles are fixedly installed on both sides of the conveyor line on the fixed table. The conveyor line is provided with a bare electrode between the two groups of baffles. The detection table is arranged vertically relative to the conveyor line. One end of the detection table is arranged above the conveyor line through a mounting seat. The mounting seat is arranged parallel to the conveyor line. A first slide cylinder is arranged above the mounting seat. The bottom of one end of the detection table is fixedly connected to the movable end of the first slide cylinder. A second slide cylinder is arranged on the side of the detection table close to the entrance of the conveyor line. A detection seat is arranged on the movable end of the second slide cylinder. A photoelectric sensor and multiple groups of ToF sensors arranged at multiple angles are installed on the detection seat. The optical imaging component is arranged above and below the bare electrode.

2. A bare electrode size detection system according to claim 1, characterized in that: A bellows is arranged above the fixed platform at the inlet end of the conveying line, the bellows penetrates both sides of the conveying line direction, an air outlet is opened on the top of the bellows, and a turbo fan is installed on the air outlet.

3. A bare electrode size detection system according to claim 1, characterized in that: The conveyor line includes two sets of parallel conveyor belts. A conveyor motor is arranged between the two sets of conveyor belts above the fixed platform. The output end of the conveyor motor is connected to a conveyor wheel through a rotating shaft. The conveyor wheel is arranged at both ends of the conveyor belt and is transmission-connected to the conveyor belt.

4. A bare electrode size detection system according to claim 1, characterized in that: The bottoms of the four corners of the fixing platform are all provided with adjustable feet.

5. A bare electrode size detection system according to claim 1, characterized in that: The mounting seat is also provided with a set of slide rails in parallel on the outer side of the first slide cylinder, and the bottom of the detection platform moves along the slide rails.

6. A bare electrode size detection system according to claim 1, characterized in that: The movable end of the second slide cylinder is screwed and fixedly mounted with a lifting seat, a lifting cylinder is mounted on the lifting seat, and the output end of the lifting cylinder is fixedly connected to the top of the detection seat.

7. A bare electrode size detection system according to claim 1, characterized in that: One end of the detection seat is also provided with multiple groups of threaded mounting holes at equal intervals vertically. The photoelectric sensor and the ToF sensor are fixedly connected through the threaded mounting holes in the connecting seat and the detection seat by bolts. There are three groups of ToF sensors, one of which is installed at the outermost ends below the detection seat and is centered on both sides of the bare electrode. The other group is installed in the middle of the upper part of the detection seat and faces downward above the bare electrode. There are two groups of photoelectric sensors, which are installed above the bare electrode body and the pole ear respectively.

8. A bare electrode size detection system according to claim 1, characterized in that: A mounting rod is arranged at the center of the top of the detection platform, one end of the mounting rod extends above the bare electrode on the conveyor line, and a group of optical imaging components is arranged downward from one end of the mounting rod.

9. A bare electrode size detection system according to claim 1, characterized in that: The fixing platform is provided with a group of optical imaging components below the entrance of the conveying line, and both sides of the optical imaging components are provided with fill light sources.

10. A bare electrode size detection system according to claim 1, characterized in that: The fixing platform is provided with an in-position sensor at a position opposite to the bare electrode on one side of the fixing platform close to the entrance of the conveying line.

Images