Cylindrical battery appearance defect detection equipment

Abstract

The invention discloses cylindrical battery appearance defect detection equipment which comprises a machine table, a pair of spatial single-face cams, a rotating main shaft, a double-branch gear set, a cam divider, a gear motor, a station carrying table, a pulley, a Z-axis sliding table, a Z-axis jacking column and a circumferential surface defect detection camera. A rotating main shaft is contained in the axis of the space single-face cam and is in transmission connection with a gear motor through a double-branch gear set and a cam divider. Through the mode, the cylindrical battery appearance defect detection equipment provided by the invention realizes separation and resetting of a battery body and a jig seat through a pair of space single-sided cam construction guide rails 200, and realizes the purpose of twisting and autorotation by virtue of a magnetic Z-axis driving roller 11, so that efficient, stable and automatic operation of code reading detection and defect detection is realized; the method has the advantages of comprehensive detection, stability and high efficiency.

Description

Technical Field

[0001] The present invention relates to the field of cylindrical battery production equipment, and in particular to a cylindrical battery appearance defect detection device. Background Art

[0002] Surface defect detection of cylindrical batteries requires a 360-degree comprehensive inspection method. 360-degree scanning usually requires a large-scale sampling environment. This can be achieved by using multiple cameras for multi-angle shooting, or by using mechanical rotation to achieve circumferential scanning. However, since cylindrical batteries usually require the use of jigs and fixtures to achieve circulation, the visual inspection process often misses parts hidden inside the jig, resulting in a small number of defective products still leaving the production line. For this reason, existing technologies usually use manual review to eliminate missed defective products. As a result, the efficiency and quality of the production line cannot meet production needs. Summary of the Invention

[0003] The main technical problem solved by the present invention is to provide a cylindrical battery appearance defect detection device, which realizes the separation and reset of the battery body and the fixture seat through a pair of spatial single-sided cam structure guide rails 200, and uses the magnetic Z-axis active roller 11 to achieve the purpose of rubbing and rotation, thereby realizing efficient, stable and automated operation of code reading detection and defect detection, and has the advantages of comprehensive detection, stability and efficiency.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a cylindrical battery appearance defect detection device, including a machine, a spatial single-sided cam, a rotating spindle, a two-part gear set, a cam divider, a reduction motor, a work station platform, a pulley, a Z-axis slide, a Z-axis top column, and a circumferential surface defect detection camera. The machine is provided with a pair of vertically connected and up-down coincident spatial single-sided cams, the axis of the spatial single-sided cam accommodates a rotating spindle, and the rotating spindle is connected to the cam divider through the two-part gear set. Connected to the reduction motor, a number of workstation platforms are set on the outer circumference of the rotating spindle, and an up and down undulating guide rail is formed between the joints of the spatial single-sided cam. A number of pulleys are horizontally arranged in the guide rail, and each pulley is arranged on a group of Z-axis slides. The Z-axis slides are mounted on the outer circumference of the rotating spindle and are arranged one by one under the workstation platform. The Z-axis slide is provided with a Z-axis top column that matches the workstation platform. The Z-axis top column is used to eject the battery, and a circumferential defect detection camera facing the workstation platform is provided on the machine.

[0005] In a preferred embodiment of the present invention, a magnetic Z-axis active roller is mounted on the outer circumference of the rotating main shaft, and the Z-axis active roller is arranged on the upper side of the workstation platform. The Z-axis active roller is driven by an external drive motor through a belt pulley group, and the Z-axis active roller is used to adsorb and rub the cylindrical battery to rotate.

[0006] In a preferred embodiment of the present invention, the rotating main shaft is hollow and has a pillar built in through a bearing, the pillar is fixed on the machine platform and a carrier is provided on the top, a floating platform driven by a lifting cylinder is provided on the carrier, and an arc-shaped pull-down pressure block is provided at the bottom of the floating platform, and the bottom of the pull-down pressure block is facing the work station carrier to press the battery in the ejected state downward to break away from the magnetic attraction and return it to the work station carrier.

[0007] In a preferred embodiment of the present invention, the guide rail has two heights, a high position and a low position, and the high position and the low position are aligned with each workstation platform one by one, and the high position and the low position have an arc-shaped transition.

[0008] In a preferred embodiment of the present invention, the high position includes a first high position, and the workstation platform is equipped with a code reader at the first high position.

[0009] In a preferred embodiment of the present invention, the high position includes a second high position, and the work station platform is equipped with a circumferential surface defect detection camera at the second high position.

[0010] In a preferred embodiment of the present invention, a second rotating table is provided on the machine, a plurality of magnetic battery material holes are provided on the edge of the second rotating table, a flow channel is provided around the outer side of the second rotating table, and the flow channel is divided into a defect detection station, a laser coding station, an OK sorting station, and an NG sorting station along the rotation direction of the second rotating table; a through opening is provided at the defect detection station, and end face defect detection cameras are provided directly above and directly below the through opening; a smoke exhaust hood is provided at the laser coding station, and the smoke exhaust hood has a side opening and is matched with a laser marking machine; the OK sorting station is connected to the OK channel, and the NG sorting station is connected to the NG channel.

[0011] In a preferred embodiment of the present invention, the OK sorting station is provided with a horizontally arranged shift rod intruding into the flow channel, the shift rod is externally connected to a slide cylinder, and the shift rod moves back and forth between the OK channel and the flow channel; the NG sorting station is provided with a horizontally arranged air claw intruding into the flow channel, the air claw is hoisted on a linear module slide, and the linear module slide moves back and forth between the NG channel and the flow channel.

[0012] In a preferred embodiment of the present invention, a first transition turntable is provided in the upstream direction of the rotating main shaft, a second transition turntable is provided between the rotating main shaft and the second rotating table, and a third transition turntable is provided between the second rotating table and the NG channel. The first transition turntable, the rotating main shaft, the second transition turntable, the second rotating table and the third transition turntable are all provided with a double-part gear set that meshes with each other.

[0013] The beneficial effects of the present invention are as follows: the cylindrical battery appearance defect detection equipment provided by the present invention realizes the separation and resetting of the battery body and the fixture seat through a pair of spatial single-sided cam structure guide rails 200, and uses the magnetic Z-axis active roller 11 to achieve the purpose of rubbing and rotation, thereby realizing efficient, stable and automated operation of code reading detection and defect detection, and has the advantages of comprehensive detection, stability and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which: Figure 1 This is an overall structural diagram of a preferred embodiment of a cylindrical battery appearance defect detection device of the present invention; Figure 2 This is a structural diagram of three rotating spindles of a preferred embodiment of a cylindrical battery appearance defect detection device of the present invention; Figure 3 This is a structural diagram of a 5-cam divider of a preferred embodiment of a cylindrical battery appearance defect detection device of the present invention; Figure 4 This is a preferred embodiment of a cylindrical battery appearance defect detection device of the present invention. Workstation platform Structural diagram; Figure 5 This is a structural diagram of the 11Z-axis active roller of a preferred embodiment of a cylindrical battery appearance defect detection device of the present invention; Figure 6 15 is a structural diagram of pillars of a preferred embodiment of a cylindrical battery appearance defect detection device of the present invention; Figure 7 This is a structural diagram of a pull-down pressing block 19 of a preferred embodiment of a cylindrical battery appearance defect detection device of the present invention; Figure 8 This is a structural diagram of a 21-surface defect detection camera of a preferred embodiment of a cylindrical battery appearance defect detection device of the present invention; Figure 9 22 is a structural diagram of the second rotating table of a preferred embodiment of a cylindrical battery appearance defect detection device of the present invention; Figure 10 This is a structural diagram of each workstation on the second rotating platform 22 of a preferred embodiment of a cylindrical battery appearance defect detection device of the present invention; Figure 11 This is a camera for detecting end defects of a cylindrical battery in accordance with a preferred embodiment of the present invention. Structural diagram; Figure 12 This is a flow path structure diagram of a preferred embodiment of a cylindrical battery appearance defect detection device of the present invention. DETAILED DESCRIPTION

[0015] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] like Figure 1-12 As shown, the embodiment of the present invention includes: A cylindrical battery appearance defect detection device includes a machine 1, a spatial single-sided cam 2, a rotating spindle 3, a double-part gear set 4, a cam divider 5, a reduction motor 6, a station platform 7, a pulley 8, a Z-axis slide 9, a Z-axis top column 10, and a peripheral surface defect detection camera 21. The machine 1 is provided with a pair of vertically connected and vertically matched spatial single-sided cams 2, the axis of the spatial single-sided cam 2 accommodates the rotating spindle 3, the rotating spindle 3 is connected to the reduction motor 6 through the double-part gear set 4 and the cam divider 5, and the outer circumference of the rotating spindle 3 is provided with a There are several workstation platforms 7, and a guide rail 200 that undulates up and down is formed between the joints of the spatial single-sided cam 2. Several pulleys 8 are horizontally arranged in the guide rail 200, and each pulley 8 is arranged on a group of Z-axis slides 9. The Z-axis slides 9 are mounted on the outer circumference of the rotating spindle 3 and are arranged one by one under the workstation platform 7. The Z-axis slides 9 are provided with a Z-axis top column 10 that matches the workstation platform 7. The Z-axis top column 10 is used to eject the battery 1000, and the machine 1 is provided with a circumferential defect detection camera 21 facing the workstation platform 7.

[0017] Among them, the outer peripheral surface of the rotating main shaft 3 is mounted with a magnetic Z-axis active roller 11, and the Z-axis active roller 11 is arranged on the upper side of the work station platform 7. The Z-axis active roller 11 drives an external drive motor 13 through a belt pulley group 12. The Z-axis active roller 11 is used to adsorb and rub the cylindrical battery 1000 to rotate.

[0018] Furthermore, the rotating main shaft 3 is hollow and has a pillar 15 built into it through a bearing. The pillar 15 is fixed on the machine 1 and a carrier 16 is provided on the top. A floating platform 18 driven by a lifting cylinder 17 is provided on the carrier 16. An arc-shaped pull-down pressure block 19 is provided at the bottom of the floating platform 18. The pull-down pressure block 19 is directly opposite to the work station carrier 7 to press the battery 1000 in the ejected state downward to break away from the magnetic attraction and return to the work station carrier 7.

[0019] Furthermore, the guide rail 200 has two heights, a high position 201 and a low position 202 . The high position 201 and the low position 202 are aligned with each workstation platform 7 in a one-to-one correspondence, and there is an arc transition between the high position 201 and the low position 202 .

[0020] Furthermore, the high position 201 includes a first high position 201 a , and the work station platform 7 is equipped with a code reader 20 at the first high position 201 a .

[0021] Furthermore, the high position 201 includes a second high position 201b, and the work station platform 7 is equipped with a peripheral surface defect detection camera 21 at the second high position 201b.

[0022] Furthermore, a second rotating table 22 is provided on the machine 1, and a plurality of magnetic battery material holes 23 are provided on the edge of the second rotating table 22. A flow channel 23 is provided around the outer side of the second rotating table 22, and the flow channel 23 is divided into a defect detection station 24, a laser coding station 25, an OK sorting station 26, and an NG sorting station 27 along the rotation direction of the second rotating table 22; a through opening is provided at the defect detection station 24, and end face defect detection cameras 28 are provided directly above and below the through opening; a fume hood 29 is provided at the laser coding station 25, and the fume hood 29 is opened laterally and matched with a laser marking machine 30; the OK sorting station 26 is connected to the OK channel 31, and the NG sorting station 27 is connected to the NG channel 32.

[0023] Furthermore, the OK sorting station 26 is provided with a horizontally arranged shift rod 33 that invades the flow channel 23. The shift rod 33 is externally connected to a slide cylinder 34, and the shift rod 33 moves back and forth between the OK channel 31 and the flow channel 23; the NG sorting station 27 is provided with a horizontally arranged air gripper 35 that invades the flow channel 23. The air gripper 35 is hoisted on a linear module slide 36, and the linear module slide 36 moves back and forth between the NG channel 32 and the flow channel 23.

[0024] Furthermore, a first transition turntable 301 is provided in the upstream direction of the rotating main shaft 3, a second transition turntable 302 is provided between the rotating main shaft 3 and the second rotating table 22, and a third transition turntable 303 is provided between the second rotating table 22 and the NG channel 32. The first transition turntable 301, the rotating main shaft 3, the second transition turntable 302, the second rotating table 22, and the third transition turntable 303 are all provided with a dual-part gear set 4 that meshes with each other.

[0025] The cylindrical batteries described in this embodiment are all equipped with a fixture. The so-called "battery" includes the cylindrical battery body and its fixture. The fixture is a cylindrical positioning block, and the cylindrical battery is vertically inserted into the fixture. Figure 1As shown, this equipment utilizes an S-shaped, winding circuit structure, integrating multiple workstations within a small area and maximizing space utilization. The upstream assembly line connects to the first transition turntable 301, then to the rotating spindle 3, then to the second transition turntable 302, then to the second rotary table 22, and finally to the third transition turntable 303. Good products are then discharged, while air grippers remove bad products to the good channel.

[0026] like Figure 2 As shown, the rotating spindle 3 involves the pre-reading process of the traceability code on the peripheral surface of the battery, the 360° rotation action on the peripheral surface of the battery, and the peripheral surface defect detection process. Since the battery body is inserted into the jig seat, when the traceability code on the peripheral surface of the battery is read, the battery needs to be lifted and separated from the jig seat first. In order to solve the problem of the battery tipping over after being lifted, a magnetic Z-axis active roller 11 is designed on the upper side of the jig seat to absorb the battery body. The Z-axis active roller 11 is driven by the drive motor 13 through the belt pulley group 12 to rub and rotate the battery body. The lower end of the Z-axis active roller 11 is designed with a contoured support bracket that half surrounds the battery body. During the process of the battery being rubbed and rotated, the battery is prevented from slipping inside the contoured support bracket. A rotary encoder is provided on the transmission path of the drive motor 13, and the rotary encoder controls the drive motor 13 to rotate 360°. Each Z-axis active roller 11 is equipped with a parallel driven roller. The driven roller is also magnetic and adheres to the outer surface of the battery. The rotating battery rubs the driven roller, causing it to rotate. A petal-shaped sensor is installed at the top of the driven roller. The sensor works in conjunction with a photoelectric sensor to verify the measured rotation angle. After the battery is successfully read at the first high position 201a, to resolve the problem of the battery being attracted by the Z-axis active roller 11, a lifting cylinder 17 drives the pull-down pressure block 19 to pull the battery body back into the jig holder. The battery then rotates with the rotating spindle 3 and flows into the second high position 201b. Here, a peripheral defect detection camera 21 is installed to sample and inspect the outer surface of the battery body. Since the battery body is inserted into the jig holder, it needs to be lifted from the jig holder and then rotated 360°. During this rotation, defective products are detected and sorted into the defective channel at the output end of the device.

[0027] like Figure 9 As shown, the batteries flow into the second rotating table 22. At the defect inspection station 24, the positive and negative ends of the batteries are photographed for defects. Good batteries are sorted into the NG channel at the equipment output. The batteries then flow into the laser coding station 25, where a laser marker 30 prints a traceability code on the battery surface. A second code scan is then performed to detect bad batteries. Good batteries are then sorted into the NG channel at the equipment output. Good batteries reach the push rod 33, where they are pushed out of the flow channel by the slide cylinder 34 and transferred to the OK channel.

[0028] like Figure 12As shown in the figure, this equipment integrates the coding process and multiple detection processes in a very small space. Figure 3 As shown, all the turntables are synchronized with each other through a cam divider 5 and a double-split gear set 4 to achieve high stability.

[0029] In summary, the present invention provides a cylindrical battery appearance defect detection device, which realizes the separation and resetting of the battery body and the fixture seat through a pair of spatial single-sided cam structure guide rails 200, and uses the magnetic Z-axis active roller 11 to achieve the purpose of rubbing and rotation, thereby realizing efficient, stable and automated operation of code reading detection and defect detection, and has the advantages of comprehensive detection, stability and efficiency.

[0030] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A cylindrical battery appearance defect detection device, characterized in that: The machine comprises a platform, a spatial single-sided cam, a rotating main shaft, a double-part gear set, a cam divider, a reduction motor, a work station platform, a pulley, a Z-axis slide, a Z-axis top column, and a circumferential surface defect detection camera. The machine is provided with a pair of vertically connected and upper and lower spatial single-sided cams, the axis of the spatial single-sided cam accommodates a rotating main shaft, the rotating main shaft is connected to the reduction motor through the double-part gear set via the cam divider, a number of work station platforms are provided on the outer circumference of the rotating main shaft, a guide rail that undulates up and down is formed between the joints of the spatial single-sided cams, a number of pulleys are horizontally arranged in the guide rail, each pulley is provided on a group of Z-axis slides, the Z-axis slide is mounted on the outer circumference of the rotating main shaft and is arranged one by one below the work station platform, the Z-axis slide is provided with a Z-axis top column that matches the work station platform, the Z-axis top column is used to eject the battery, and a circumferential surface defect detection camera facing the work station platform is provided on the machine.

2. The cylindrical battery appearance defect detection device according to claim 1, characterized in that: A magnetic Z-axis active roller is mounted on the outer circumference of the rotating spindle. The Z-axis active roller is arranged on the upper side of the workstation platform. The Z-axis active roller drives an external drive motor through a belt pulley group. The Z-axis active roller is used to absorb and rub the cylindrical battery to rotate.

3. The cylindrical battery appearance defect detection device according to claim 1, characterized in that: The rotating main shaft is hollow and has a pillar built into it through a bearing. The pillar is fixed on the machine platform and a carrier is provided on the top. A floating platform driven by a lifting cylinder is provided on the carrier. An arc-shaped pull-down pressure block is provided at the bottom of the floating platform. The pull-down pressure block is directly opposite the work station carrier to press the battery in the ejected state downward to release it from the magnetic attraction and return it to the work station carrier.

4. The cylindrical battery appearance defect detection device according to claim 1, characterized in that: The guide rail has two heights, a high position and a low position. The high position and the low position are aligned with each workstation platform in a one-to-one correspondence, and the high position and the low position have an arc-shaped transition.

5. The cylindrical battery appearance defect detection device according to claim 4, characterized in that: The high position includes a first high position, and the work station platform is equipped with a code reader at the first high position.

6. The cylindrical battery appearance defect detection device according to claim 4, characterized in that: The high position includes a second high position, and the work station platform is equipped with a circumferential surface defect detection camera at the second high position.

7. The cylindrical battery appearance defect detection device according to claim 1, characterized in that: A second rotating table is provided on the machine, and a plurality of magnetic battery material holes are provided on the edge of the second rotating table. A flow channel is provided around the outer side of the second rotating table, and the flow channel is divided into a defect detection station, a laser coding station, an OK sorting station, and an NG sorting station along the rotation direction of the second rotating table; a through opening is provided at the defect detection station, and end face defect detection cameras are provided directly above and below the through opening; a fume hood is provided at the laser coding station, and the fume hood has a side opening and is matched with a laser marking machine; the OK sorting station is connected to the OK channel, and the NG sorting station is connected to the NG channel.

8. The cylindrical battery appearance defect detection device according to claim 7, characterized in that: The OK sorting station is provided with a horizontally arranged shifting rod invading the flow channel, the shifting rod is externally connected to a slide cylinder, and the shifting rod moves back and forth between the OK channel and the flow channel; the NG sorting station is provided with a horizontally arranged air claw invading the flow channel, the air claw is hoisted on a linear module slide, and the linear module slide moves back and forth between the NG channel and the flow channel.

9. The cylindrical battery appearance defect detection device according to claim 7, characterized in that: A first transition turntable is connected to the upstream direction of the rotating main shaft, a second transition turntable is connected to the rotating main shaft and the second rotating table, and a third transition turntable is connected to the second rotating table and the NG channel. The first transition turntable, the rotating main shaft, the second transition turntable, the second rotating table and the third transition turntable are all provided with a double-part gear set that meshes with each other.

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