CN218382448U - Cylindrical lithium ion battery defect detection mechanism - Google Patents

Abstract

The invention relates to a defect detection mechanism for a cylindrical lithium ion battery, which comprises a pull belt assembly, a projection measuring instrument, a telescopic assembly and a lifting device, wherein the lifting device is installed on a transfer path of the pull belt assembly, the projection measuring instrument is installed above the lifting device, the pull belt assembly can transfer a tool loaded with the cylindrical battery, the lifting device lifts the tool to a height matched with the projection measuring instrument, and the projection measuring instrument irradiates parallel light to measure the cylindrical battery in the tool. The utility model is used for detect cylinder lithium ion battery defect and size, detection efficiency is high and the result is accurate.

Description

Cylindrical lithium ion battery defect detection mechanism

Technical Field

The invention relates to the field of cylindrical battery detection, in particular to a cylindrical lithium ion battery defect detection mechanism.

Background

At present, the lithium cylinder battery industry adopts automatic production, and the cylindrical battery surface damage can be caused by extrusion collision and the like in the processing process of the cylindrical battery, so that the leakage and other conditions occur, most manufacturers still adopt manual inspection, the manual inspection efficiency is low, the inspection standard is different, and the detection of the cylindrical battery after the processing of the cylindrical battery is finished is a big problem.

The defect detection of the prior art to the cylindrical lithium ion battery is basically realized by applying a camera to photograph and detect in the production process, but the detection surface of the cylindrical lithium ion battery is arc-shaped, complete scanning is difficult to realize, the imaging effect is easily influenced by the environment, the camera needs to be manually calibrated when the defect cannot be accurately identified, and the defect detection is very troublesome to the application of non-professional personnel.

Disclosure of Invention

The invention aims to provide a cylindrical lithium ion battery defect detection mechanism which is convenient to operate, accurate and rapid.

The utility model provides a cylinder lithium ion battery defect detecting mechanism, includes stretching strap subassembly, projection measuring apparatu, flexible subassembly and elevating gear, elevating gear installs on the route of transferring of stretching strap subassembly, the projection measuring apparatu is installed in the elevating gear top, the stretching strap subassembly can be transferred and load the frock that has the cylinder battery, the elevating gear lifting frock to with projection measuring apparatu assorted height, projection measuring apparatu shines the parallel light right cylinder battery in the frock is measured.

In the above scheme, the drawstring assembly is used for conveying the processed cylindrical battery, the cylindrical battery is loaded by a tool to prevent rolling in the transportation process, the cylindrical battery is transferred to the lifting device when the cylindrical battery is transported, the lifting device lifts the tool loaded with the cylindrical battery to a height matched with a projection measuring instrument, the cylindrical lithium ion battery can be covered by parallel light irradiated by the projection measuring instrument, the detection accuracy is ensured, the projection measuring instrument instantly finishes shooting detection, and the detection and the defect detection are both considered.

Further, the stretching strap assembly comprises a conveyor belt and a support, the conveyor belt is installed on the support, and sensors are arranged on two sides of the support, close to the lifting device.

In the above scheme, the conveyer belt adopts insulating corrosion-resistant material, avoids the cylinder battery to be burnt out in the stretching strap transportation, also prevents the electrolyte corrosion conveyer belt of cylinder battery simultaneously, the sensor is used for responding to the cylinder battery, and the sensor passes the signal to elevating gear when the cylinder battery transfers to elevating gear's position, elevating gear starts the lift of completion to the cylinder battery.

Further, elevating gear includes flexible subassembly, push rod and cylinder body, the cylinder body is connected with the lift driving piece to the drive push rod and flexible subassembly move along vertical direction.

In the above scheme, the lift driving piece is connected with the cylinder body and realizes elevating movement with the drive push rod, the push rod is connected with flexible subassembly, flexible subassembly centre gripping is to the cylinder battery after, the push rod drives flexible subassembly upward movement extremely projection measuring apparatu assorted height, accomplishes to shoot and detects the back, the push rod descends to drive flexible subassembly downstream and steadily places the cylinder battery on the drive belt.

Further, flexible subassembly includes flexible driving piece, connecting rod and suction disc, the output of flexible driving piece connect in the connecting rod, the suction disc is installed the tip of connecting rod, flexible driving piece drive the connecting rod removes along the horizontal direction.

In the above scheme, flexible driving piece can be for taking the cylinder of piston rod, and the output of flexible driving piece is connected with the connecting rod for the tip of piston rod promptly, and the piston rod stretches out the certain distance after the signal of sensor is received to flexible subassembly, promotes the connecting rod horizontal direction and removes to drive the suction plate and remove to the suitable position and carry the cylinder battery, later under elevating gear's effect flexible subassembly whole upward movement carries out the cylinder battery and shoots the detection, detects the completion back flexible subassembly downstream makes the cylinder battery steadily place on the conveyer belt, the connecting rod resets with the suction plate under the effect of flexible driving piece.

Furthermore, the end part of the telescopic rod is provided with a suction plate, and the suction plate is provided with a plurality of suction nozzles.

In the above scheme, because the cylinder battery is the cylinder that the surface is smooth, so need increase the suction nozzle on the suction disc, open the suction nozzle and adsorb the cylinder battery when the air supply, the suction disc is stable holds up the cylinder battery to the centre of projection measuring apparatu, avoids appearing rocking when shooing simultaneously and influences the measurement, and the air supply is closed when placing the cylinder battery on the drive belt after accomplishing the measurement for the telescopic assembly normally resets.

Furtherly, the connecting rod is bent towards flexible driving piece one end and is connected with flexible driving piece downwards.

In the above scheme, flexible driving piece is connected with the suction disc to the connecting rod makes the suction disc remove at the horizontal direction, buckles the connecting rod for a distance and is connected with flexible driving piece, is in order to let suction disc and flexible driving piece form certain difference in height, works as when the push rod rises to the highest spacing the cylinder battery still can get into in projection measuring apparatu's the parallel light, the connecting rod that increases to bend moreover also can avoid directly using the cylinder of taking the piston rod to produce to shelter from to the cylinder battery, improves the accuracy that the cylinder battery detected.

Further, the lifting devices are symmetrically arranged on two sides of the drawstring assembly.

In the above scheme, the lifting devices are symmetrically installed, so that the cylindrical battery is horizontally supported for measurement, the stability of the cylindrical battery can be kept, the measured data is accurate, and the lifting devices are simple in structure and convenient to install.

Further, the projection measuring instrument comprises a transmitter and a receiver, and the transmitter and the receiver are symmetrically fixed on the mounting seat.

In the scheme, the emitter and the receiver both adopt telecentric optical lenses, green LED parallel light is irradiated from the emitter, shadow of the cylindrical battery is imaged at the receiver by utilizing a CMOS (complementary metal oxide semiconductor), the CMOS has high sensitivity and high resolution, the projection measuring instrument can finish measurement within 25 mu s at the fastest speed, and the efficiency is high and stable.

The utility model discloses a cylinder lithium ion battery defect detecting mechanism has following beneficial effect at least:

first, the operation is convenient, elevating gear installs the both sides at the stretching strap subassembly, the projection measuring apparatu is installed at the elevating gear top, and elevating gear includes flexible subassembly, push rod and cylinder body, the cylinder body is connected with the lift driving piece, in order to drive the push rod removes along vertical direction with flexible subassembly, and the whole mechanism is installed easily, and the projection measuring apparatu operates more facility than the camera.

Secondly, measuring range is wide and efficient, the projection measuring instrument can complete shooting detection instantly, and defect detection and size measurement are considered.

And thirdly, the measurement accuracy is high, the projection measuring instrument irradiates parallel light which can cover the cylindrical lithium ion battery, the image deformation of the edge part of the telecentric optical lens adopted by the projection measuring instrument is very small, and the detection accuracy is ensured.

Drawings

Fig. 1 is a schematic diagram of a defect detection mechanism of a cylindrical lithium ion battery according to an embodiment.

Fig. 2 is a schematic diagram of the middle of the projection measuring instrument moving the cylindrical lithium ion battery.

FIG. 3 is a top view of a defect detection mechanism for a cylindrical lithium ion battery.

Fig. 4 is a schematic view of the lifting device in fig. 1.

Fig. 5 is a schematic view of the telescoping assembly of fig. 4.

The reference numbers illustrate: 10. a draw tape assembly; 11. a conveyor belt; 12. a support; 13. a sensor; 200. a lifting device; 210. a push rod; 220. a cylinder body; 230. a lifting drive member; 240. a telescopic assembly 241, a telescopic driving member; 242. a connecting rod; 343. a suction nozzle; 244. sucking a plate; 31. a transmitter; 32. a receiver; 4. a cylindrical battery.

Detailed Description

The following describes a defect detection mechanism for a cylindrical lithium ion battery according to the present invention in further detail with reference to specific embodiments and accompanying drawings.

As shown in fig. 1 and fig. 2, in a preferred embodiment, the defect detection mechanism for a cylindrical lithium ion battery of the present invention includes a strap assembly 10, a projection measuring apparatus, a telescopic assembly 240 and a lifting device 200, wherein the lifting device 200 is installed on a transfer path of the strap assembly 10, the projection measuring apparatus is installed above the lifting device 200, the strap assembly 10 can transfer a tool loaded with a cylindrical battery 4, the lifting device 200 lifts the tool to a height matched with the projection measuring apparatus, and the projection measuring apparatus irradiates parallel light to measure the cylindrical battery 4 in the tool. Stretching strap subassembly 10 is used for conveying the cylinder battery 4 that processing was accomplished, cylinder battery 4 uses the frock to load and prevents to roll in the transportation, transfer to elevating gear 200 when cylinder battery 4, elevating gear 200 will load the frock that has cylinder battery 4 and lift and deliver to projection measurement appearance assorted height, what projection measurement appearance shone can cover cylinder lithium ion battery for the parallel light, guarantee the accuracy that detects, projection measurement appearance accomplishes the shooting in the twinkling of an eye and detects, and detect and compromise defect detecting and size measurement.

As shown in fig. 1 and 3, in some embodiments, the belt assembly 10 includes a conveyor belt 11 and a bracket 12, the conveyor belt 11 being mounted on the bracket 12, and sensors 13 being provided on both sides of the bracket 12 adjacent to the lifting device 200. Conveyer belt 11 adopts insulating corrosion resistant material, avoid cylindrical battery 4 to be burnt out in the stretching strap transportation, also prevent simultaneously that cylindrical battery 4's electrolyte from corroding conveyer belt 11, sensor 13 is used for responding to cylindrical battery 4, sensor 13 passes the signal to elevating gear 200 when cylindrical battery 4 transfers to elevating gear 200's position, elevating gear 200 starts the completion to cylindrical battery 4's lift, it measures complete cylindrical battery 4 for the projection measurement appearance to use elevating gear 200 to raise cylindrical battery 4, it leads to measuring inaccurately to avoid having the position influence of omission.

As shown in fig. 1 and 4, in some embodiments, the lifting device 200 includes a telescopic assembly 240, a push rod 210, and a cylinder 220, and the cylinder 220 is connected with a lifting driving member 230 to drive the push rod 210 and the telescopic assembly 240 to move in a vertical direction. Lifting drive spare 230 is connected with cylinder body 220 and realizes elevating movement with drive push rod 210, push rod 210 is connected with flexible subassembly 240, flexible subassembly 240 centre gripping is to cylindrical battery 4 back, push rod 210 drives flexible subassembly 240 upward movement to projection measuring apparatu assorted height, the completion is shot and is detected the back, push rod 210 descends and drives flexible subassembly 240 downstream and steadily places cylindrical battery 4 on the drive belt, push rod 210, the combination of cylinder body 220 and lifting drive spare 230 can be the electric jar, supporting lifting drive spare 230 drive with servo motor etc. can realize accurate control.

As shown in fig. 5, in some embodiments, the telescopic assembly 240 includes a telescopic driving member 241, a connecting rod 242, and a suction plate 244, an output end of the telescopic driving member 241 is connected to the connecting rod 242, the suction plate 244 is installed at an end of the connecting rod 242, and the telescopic driving member 241 drives the connecting rod 242 to move in a horizontal direction. The telescopic driving member 241 can be a cylinder with a piston rod, the output end of the telescopic driving member 241 is the end of the piston rod, and is connected with the connecting rod 242, the piston rod stretches out a certain distance after the telescopic assembly 240 receives the signal of the sensor 13, the connecting rod 242 is pushed to move in the horizontal direction, thereby the suction plate 244 is driven to move to a proper position to clamp the cylindrical battery 4, then the whole upward movement of the telescopic assembly 240 is carried out under the action of the lifting device 200 to shoot and detect the cylindrical battery 4, the downward movement of the telescopic assembly 240 after the detection is completed enables the cylindrical battery 4 to be stably placed on the conveyor belt 11, the connecting rod 242 and the suction plate 244 are reset under the action of the telescopic driving member 241, the normal blanking of the cylindrical battery 4 without defects is detected, and the cylindrical battery 4 with defects is detected to be recovered through a manipulator or other material taking devices.

As shown in FIG. 5, in some embodiments, the end of the telescoping pole is provided with a suction plate 244, and the suction plate 244 is provided with a plurality of suction nozzles 243. Because cylindrical battery 4 is the cylinder of the smooth surface, so need increase suction nozzle 243 on suction plate 244, open suction nozzle 243 and adsorb cylindrical battery 4 when the air supply, suction plate 244 is stable holds up cylindrical battery 4 to the centre of projection measuring apparatu, avoids appearing rocking the influence measurement when shooing simultaneously, and the air supply is closed when placing cylindrical battery 4 on the drive belt after accomplishing the measurement, and the centre gripping mode that accomplishes cylindrical battery 4 through control air supply is simple and the security is high.

As shown in fig. 1 and 5, in some embodiments, the connecting rod 242 is bent downward toward one end of the telescopic driving member 241 to be connected to the telescopic driving member 241. Connecting rod 242 connects flexible driving piece 241 and suction disc 244 and makes suction disc 244 remove at the horizontal direction, buckle connecting rod 242 a section distance and be connected with flexible driving piece 241, be for letting suction disc 244 and flexible driving piece 241 form certain difference in height, in the parallel light that can still get into projection measuring apparatu when push rod 210 rises to the highest limit, in addition increase the connecting rod 242 of bending and also can avoid directly using the cylinder of taking the piston rod to produce the cylinder battery 4 and shelter from, improve the accuracy that cylinder battery 4 detected.

As shown in FIG. 1, in some embodiments, the lifting device 200 is symmetrically mounted on both sides of the draw tape assembly 10. The lifting device 200 is symmetrically installed, so that the cylindrical battery 4 is kept horizontal to be supported for measurement, the cylindrical battery 4 can be kept stable, the measured data is accurate, and the lifting device 200 is simple in structure and convenient to install.

As shown in fig. 1 and 2, in some embodiments, the projection measuring apparatus includes a transmitter 31 and a receiver 32, and the transmitter 31 and the receiver 32 are symmetrically fixed on the mounting base. In the above scheme, the transmitter 31 and the receiver 32 both adopt telecentric optical lenses, which have low distortion, and the deformation of the image at the shooting edge is small, and the measurement can be performed without being affected by the placement position of the target object, even if there is a shift in the process of lifting the cylindrical battery 4, the measurement precision can be kept unchanged, and the telecentric optical lenses adopt a structure that only receives parallel light in principle, so that the telecentric optical lenses are not easily affected by ambient light, and the imaging size is not easily changed when thermal expansion occurs, and the influence of temperature change can be fully suppressed. The green LED parallel light is illuminated from the emitter 31 and the shadow of the cylindrical cell 4 is imaged at the receiver 32 using CMOS, which has high sensitivity and high resolution, and the projection measuring instrument can perform the measurement at the fastest speed in 25 mus, with high efficiency and stability.

According to the working principle and process of the cylindrical lithium ion battery defect detection mechanism, a conveyor belt 11 conveys a tool loaded with a cylindrical battery 4 to the defect detection mechanism, when sensors 13 on two sides of a support 12 sense that the cylindrical battery 4 reaches the position of a lifting device 200, a telescopic driving piece 241 extends out to push a connecting rod 242 to move horizontally rightwards, so that a suction plate 244 is driven to move horizontally to a proper position to contact the cylindrical battery 4, the cylindrical battery 4 is adsorbed on the suction plate 244 through a suction nozzle 243, then a push rod 210 drives a telescopic component 240 clamping the cylindrical battery 4 to move upwards to a height matched with a projection measuring instrument, the projection measuring instrument instantly finishes shooting detection and gives consideration to defect detection and dimension measurement, the push rod 210 descends to drive the telescopic component 240 to move downwards to place the cylindrical battery 4 on the conveyor belt stably, the connecting rod 242 and the suction plate 244 reset under the action of the telescopic driving piece 241, the cylindrical battery 4 which is detected to be normally blanked is normally, and the defective cylindrical battery 4 is recovered through a manipulator.

In the description of the present invention, it is to be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed and operated in specific orientations, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.

Claims (8)

1. The utility model provides a cylinder lithium ion battery defect detecting mechanism, its characterized in that, includes stretching strap subassembly, projection measuring apparatu and elevating gear, elevating gear installs on the route of transferring of stretching strap subassembly, the projection measuring apparatu is installed in the elevating gear top, the stretching strap subassembly can be transferred and load the frock that has the cylinder battery, the elevating gear lifting frock to with projection measuring apparatu assorted height, projection measuring apparatu shines the parallel light right cylinder battery in the frock measures.

2. The cylindrical lithium ion battery defect detecting mechanism according to claim 1, wherein the belt pulling assembly comprises a conveyor belt and a bracket, the conveyor belt is mounted on the bracket, and sensors are arranged on two sides of the bracket near the lifting device.

3. The cylindrical lithium ion battery defect detecting mechanism according to claim 1, wherein the lifting device comprises a telescopic assembly, a push rod and a cylinder body, and the cylinder body is connected with a lifting driving member to drive the push rod and the telescopic assembly to move along a vertical direction.

4. The cylindrical lithium ion battery defect detecting mechanism according to claim 3, wherein the telescopic assembly comprises a telescopic driving member, a connecting rod and a suction plate, the output end of the telescopic driving member is connected to the connecting rod, the suction plate is installed at the end of the connecting rod, and the telescopic driving member drives the connecting rod to move along the horizontal direction.

5. The cylindrical lithium ion battery defect detecting mechanism according to claim 4, wherein a plurality of suction nozzles are arranged on the suction plate.

6. The cylindrical lithium ion battery defect detecting mechanism of claim 4, wherein the connecting rod is bent downwards towards one end of the telescopic driving member to be connected with the telescopic driving member.

7. The cylindrical lithium ion battery defect detecting mechanism of claim 1, wherein the lifting devices are symmetrically installed on both sides of the drawstring assembly.

8. The cylindrical lithium ion battery defect detection mechanism of claim 1, wherein the projection measurement instrument comprises a transmitter and a receiver, and the transmitter and the receiver are relatively fixed on two sides of the pull belt assembly.

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