CN114633993A - Cylinder electricity core welding seam rotation detection integrated equipment - Google Patents
Cylinder electricity core welding seam rotation detection integrated equipment Download PDFInfo
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- CN114633993A CN114633993A CN202210533490.6A CN202210533490A CN114633993A CN 114633993 A CN114633993 A CN 114633993A CN 202210533490 A CN202210533490 A CN 202210533490A CN 114633993 A CN114633993 A CN 114633993A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G25/00—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement
- B65G25/02—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement the carrier or impeller having different forward and return paths of movement, e.g. walking beam conveyors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/12—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to investigating the properties, e.g. the weldability, of materials
- B23K31/125—Weld quality monitoring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8887—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques
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Abstract
The invention provides a cylindrical battery cell welding line rotation detection integrated device which comprises an integrated device body, a welding line detection device and a welding line detection device, wherein the integrated device body comprises a battery cell walking mechanism, a second jacking mechanism, a rotation power device and a vision detection device; the battery cell step-sending mechanism is used for sending the incoming material battery cell to a detection station; compared with the prior art, the rotation detection device for the welding line of the battery cell, which is provided by the invention, has the advantages that the first jacking mechanism is combined with the linear step-feeding sliding table, the step-feeding efficiency is improved, the step-feeding precision is greatly increased, the positioning time is saved, when the battery cell to be detected enters a detection stage, the jacking wheels are vertically matched with the special friction wheels, the phenomenon that the battery cell does not jump when rotating is ensured, and the detection precision is greatly improved.
Description
Technical Field
The invention relates to the field of battery production, in particular to a comprehensive device for detecting the rotation of a welding line of a cylindrical battery cell.
Background
In the current market, due to the rise of new energy products, the demand of the industry for batteries is more and more large, and the requirement for the quality of the batteries is higher and higher. Under the condition of strict quality control of battery products, a series of battery safety problems are often caused by low welding quality of battery cores in the batteries. In the process of welding the battery core, the quality evaluation of the welded seam is divided into qualified and unqualified, the unqualified welding seam is mainly divided into two types, one type is poor appearance, and the other type is that the strength and the sealing property do not meet the requirements. Poor appearance mainly manifested by welding deviation and blowholes; the welding strength and the sealing which do not meet the requirements are mainly characterized in that the fusion depth does not meet the requirements, cracks or air holes exist, so that the battery leaks, and the weld quality detection generally comprises image detection, manual detection, pressure detection and the like.
The patent application with the publication number of CN111678916A discloses a detection device for side weld joints on the appearance of a battery cell, which comprises a jacking mechanism, a lifting mechanism and a conveying line, wherein the jacking mechanism is arranged in a base and is used for jacking the battery cell conveyed by the conveying line; the detection mechanism is arranged above the jacking mechanism and used for detecting welding seams at two side edges of the battery cell; the jacking device is arranged in the middle of the jacking support in a vertically movable mode and used for jacking the battery cell upwards so as to facilitate detection of the detection mechanism, and the jacking mechanism is used for jacking the battery cell conveyed by the conveying line; the detection mechanism is arranged above the jacking mechanism and used for detecting welding seams at two side edges of the battery cell; the controller controls the jacking mechanism and the detection mechanism to act, so that manual production is replaced by equipment, and the production efficiency and the detection quality are improved; however, when the detection device detects the welding seam, the battery core is in a fixed state, the welding seam of the battery core cannot be completely and completely detected, and the detection is easy to miss.
The patent with publication number CN212228762U discloses a device for detecting the rubber coating contact ratio of a cylindrical battery cell, which comprises a jacking mechanism, a rotating mechanism and a visual detection mechanism; the jacking mechanism comprises at least two lifting wheels for supporting the cylindrical battery cell to be detected, the rotating mechanism comprises a belt wheel, the belt wheel is positioned above the lifting wheels and used for driving the cylindrical battery cell to rotate, and the lifting wheels, the belt wheel and a rotating shaft of the cylindrical battery cell are parallel; the visual detection mechanism comprises a detection camera, and a camera of the detection camera faces the cylindrical battery cell. The utility model discloses a cylinder electricity core rubber coating contact ratio detection device who provides belongs to the same technical field with this scheme, and the climbing mechanism and the rotary mechanism's of use structure is comparatively similar with this scheme, but this utility model's lifting wheel interval is great, and stability is not strong when leading to electric core rotation to this utility model's jacking power device is located 4 lifting wheel downside, has also improved the rotatory risk of beating of electric core.
In summary, in the prior art, when the image acquisition device detects a weld joint, a high requirement is placed on the smoothness of the rotation of the battery core, so a high-precision stabilizing device is required to stabilize the state of the battery core during rotation, but the stabilizing device has a high requirement on the position of the battery core supplied materials, and an accurate feeding device is absent in the prior weld joint detection, so that repeated positioning is avoided; and the rotary mechanism of the cylindrical battery cell mainly depends on end face stress in the rotation detection of the welding line of the battery cell, the stress mode is single-face stress, the end face stress can scratch the surface of the battery cell and cause problems such as impression and the like, and the single-face stress is driven, so that the battery cell jumps greatly in the rotation process of the battery cell and the detection precision is greatly influenced.
Disclosure of Invention
The invention provides a cylindrical cell welding line rotation detection comprehensive device, aiming at the problems that in the prior art, when a cylindrical cell welding line is detected, a cell rotation detection single face is driven by stress, the surface of a cell can be scratched, the cell jumps greatly in the rotation process, the detection precision is influenced, and after a stabilizing device is used for stabilizing the cell rotation state, the feeding device has low precision, and the feeding is staggered, lacks materials and the like.
The comprehensive equipment at least comprises a cell walking mechanism, a second jacking mechanism, a rotary power device and a visual detection device;
the battery cell step-sending mechanism is used for sending the incoming material battery cell to a detection station;
the second jacking mechanism is positioned at the detection station and used for jacking the battery cell after the battery cell arrives at the detection station;
the rotary power device is located above the detection station, and after the second jacking mechanism jacks up the incoming material cell, the rotary power device is pressed down, so that the second jacking mechanism and the rotary power device are both in tight contact with the incoming material cell.
One of the concepts of the invention is that a cell step-feeding mechanism is additionally arranged on the basis of the original feeding line, so that the positioning time is reduced, and the feeding efficiency is increased;
because the second jacking mechanism and the rotary power device can only move up and down and have higher requirements on the precision of battery core feeding, the battery core step-feeding mechanism is additionally arranged on the basis of a feeding line which is common in the original production activities, the battery core step-feeding mechanism comprises a horizontal linear sliding table and a first jacking mechanism, the horizontal linear sliding table drives a horizontal shaft to move, and the first jacking mechanism drives a vertical shaft to move; when the battery cell is close to the detection station through the feeding line, the battery cell is jacked up through the first jacking mechanism, then the first jacking mechanism and the battery cell are driven to advance for a fixed distance through the horizontal linear sliding table, the first jacking mechanism descends after the battery cell reaches the detection station, and then the horizontal linear sliding table drives the first jacking mechanism to return to the original position together;
in the prior art, the step core uses the cylinder pushing mechanism, about 2 seconds are needed for step once, the step time is reduced to less than 1 second by adopting the linear sliding table and the second jacking mechanism, and the efficiency is doubled.
Furthermore, the invention also has the conception that the moving distance of the horizontal linear sliding table is preset in advance, so that the material is accurately loaded, and the positioning time is saved;
the moving distance of the horizontal direction of the horizontal linear sliding table is preset in advance, so that the battery cell jacked by the first jacking mechanism can horizontally move for a fixed distance and then reach the position right above the second jacking mechanism, and the second jacking mechanism can directly jack up the battery cell.
Furthermore, another idea of the present invention is that the cell step-by-step mechanism can transport a plurality of cells to be detected at one time, so as to increase the detection efficiency;
the first jacking mechanism is provided with a plurality of jacking assemblies, each two jacking assemblies which are oppositely arranged can jack up one cell to be detected, and the number of the jacking assemblies can be adjusted according to production requirements;
further, be provided with a plurality of sensors on the first climbing mechanism, the quantity of sensor is the same with the jacking subassembly quantity that is located one side, the sensor is used for after electric core supplied materials, and control jacking subassembly rises in proper order, and accurate jack-up electricity core until all jacking subassemblies are whole after being the jacking state, and horizontal sharp slip table drives first climbing mechanism and removes to detecting the station.
Furthermore, another concept of the present invention is that, in the rotation detection process of the battery cell, due to the single-sided force drive, the rotation bounce of the battery cell is too large, so that a second jacking mechanism is introduced under the battery cell to be detected, and the second jacking mechanism is used for preventing the battery cell from shifting in the rotation state, but does not limit the rotation of the battery cell, so as to improve the stability of the battery cell in the rotation detection state and improve the detection accuracy.
Furthermore, another concept of the present invention is that the second jacking mechanism includes 2 lifting wheels and a jacking power cylinder, the lifting wheels are used for lifting the cell to be detected, stabilizing the rotation state of the cell, and not limiting the rotational freedom degree of the incoming cell while forming a supporting support for the incoming cell; jacking power cylinder locates the perpendicular bisector card below of lifting wheel, for lifting wheel provides the stable power of lifting that makes progress, will wait to detect electric core and inlay in the middle of lifting wheel, further improve electric core rotational stability.
Furthermore, the idea of the present invention is that, during the cell rotation detection, the two lifting wheels are symmetrically distributed about the axis of the cell and tightly attached to the surface of the cell, and the minimum distance between the lifting wheels is smaller than the diameter of the incoming cell, so as to ensure that the lifting wheels do not limit the rotational freedom degree of the incoming cell while supporting the incoming cell.
Furthermore, the invention also discloses that the second jacking mechanisms with the same number are arranged on two sides of the detection station, and every two groups of second jacking mechanisms are used for respectively supporting two ends of the incoming material battery cell, so that the battery cell rotation stability is further improved, and the battery cell rotation jumping is avoided.
Furthermore, the other concept of the invention is that the rotary power device is arranged to cooperate with the second jacking mechanism to complete the pressing-type fixation of the cell to be detected, so that the cell is prevented from generating excessive jumping during rotation.
Specifically, after the incoming material electric core is taken one's place, second climbing mechanism and rotary power device simultaneous operation, two sets of second climbing mechanisms that are located electric core both ends rise, and the second climbing mechanism that is located directly over the electric core pushes down, accomplishes the pressing mode fixed to electric core.
Furthermore, the other concept of the present invention is that the rotary power device includes a main power friction wheel and a servo motor, wherein the main power friction wheel is a specially made large friction wheel, and the diameter of the main power friction wheel is increased by 2cm compared with the friction wheel in the prior art. The outer surface of the main power friction wheel is coated with rubber and driven by the servo motor, so that the friction force can be further increased, the surface of the battery core can not be scratched when the battery core is driven by the main power friction wheel, and the phenomenon of impressing is avoided.
Wherein, servo motor drive main power friction pulley provides power for the electricity core is rotatory, and the rotatory direct power of electricity core is frictional force, and power device guarantees that electricity core uniform velocity is rotatory through control servo motor's output rotation rate, and the cooperation is shot the shooting frequency of mechanism, further improves electricity core welding seam and detects the precision.
Furthermore, another concept of the present invention is to provide a visual photographing device for detecting a welding seam of a battery cell to be detected, wherein the visual photographing device includes a mounting mechanism and a three-dimensional photographing camera. The mounting mechanism can realize the function of independent adjustment up and down and left and right, and is convenient for the three-dimensional photographing camera to acquire the welding line images of the battery cell in each link of the production line.
Furthermore, the invention also discloses that the second jacking mechanism is provided with a position sensor, the sensor is used for controlling the second jacking mechanism and the rotary power device to operate after sensing the battery cell incoming material signal, the arrangement can avoid the arrangement of a plurality of sensors, the position of the incoming material battery cell does not need to be specifically positioned,
specifically, the jacking cylinder provides power, and when the lifting wheel contacts the lower surface of the battery cell to be detected, the upper surface of the battery cell to be detected contacts the main power friction wheel, and the battery cell to be detected is completely compressed by the main power friction wheel, so that the rotation detection can be performed.
In some embodiments, the main power friction wheel is parallel to the rotating shaft of the cylindrical battery cell, so that the rotation precision of the battery cell is further improved.
In some embodiments, the lift roller is in line contact with the cylindrical cell, and the contact line is parallel to the axis of the cylindrical cell and the lift roller.
In some embodiments, the rotation precision of the servo motor needs to reach plus or minus 0.05mm, so that the clear imaging at the welding seam of the battery cell can be ensured.
In summary, the comprehensive equipment for detecting the welding seam of the cylindrical battery cell provided by the invention comprises a battery cell step-sending mechanism, a second jacking mechanism, a rotary power device and a visual shooting device;
the cell walking mechanism is arranged on the feeding line and comprises a horizontal linear sliding table and a first jacking mechanism, the horizontal linear sliding table is used for driving the first jacking mechanism to move in the horizontal direction, the first jacking mechanism comprises jacking assemblies and sensors, the jacking assemblies are distributed on two sides of the feeding line and used for jacking a supplied cell, and the sensors sense the supplied cell condition;
the second jacking mechanism comprises a jacking wheel and a jacking power cylinder, the second jacking mechanism is arranged below the battery cell to be detected, the jacking power cylinder is arranged below the jacking wheel, and the jacking wheel can move up and down under the driving of the jacking power cylinder;
the rotary power device comprises a main power friction wheel and a servo motor, the rotary power device provides power for the rotation of the battery core to be detected, the rotary power device is positioned right above the second jacking mechanism, and the main power friction wheel is driven and controlled by the servo motor; when the battery cell to be detected is jacked up, the upper surface of the battery cell to be detected contacts with a main power friction wheel, and the main power friction wheel provides power for the rotation of the battery cell to be detected;
the visual photographing device comprises a mounting mechanism and a three-dimensional photographing camera.
Compared with the prior art, the cell weld rotation detection device provided by the invention has the advantages that the first jacking mechanism is combined with the linear step-feeding sliding table, the step-feeding efficiency is improved, the step-feeding precision is greatly increased, the positioning time is saved, when a cell to be detected enters a detection stage, the lifting wheels are vertically matched with the specially-made friction wheels, the cell is prevented from jumping during rotation, and the detection precision is greatly improved.
Drawings
The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the preferred embodiments and therefore should not be taken as limiting the scope of the invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.
Fig. 1 is a schematic diagram of a comprehensive apparatus for detecting rotation of a weld of a cylindrical cell according to an embodiment of the present invention;
fig. 2 is an enlarged view of a point a in the schematic diagram of the integrated equipment for detecting the rotation of the welding seam of the cylindrical battery cell provided in fig. 1;
fig. 3 is a schematic diagram of a cell stepping mechanism in the integrated apparatus for detecting rotation of a cylindrical cell weld according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a second jacking mechanism in the integrated equipment for detecting rotation of a welding seam of a cylindrical battery cell according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a rotational power apparatus in a comprehensive device for detecting a weld rotation of a cylindrical cell according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a visual photographing mechanism in the integrated device for detecting rotation of a weld joint of a cylindrical electrical core according to an embodiment of the present invention;
wherein, 10, a feeding line; 11. a horizontal linear sliding table; 12. a first jacking mechanism; 13. a jacking assembly; 22. a second jacking mechanism; 31. jacking a power cylinder; 32. a lifting wheel; 33. a connector; 34. a fixing plate; 35. a slide rail; 41. an installation mechanism; 42. a three-dimensional photographing camera; 43. a support frame; 51. a main power friction wheel; 52. a servo motor.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings 1 to 6.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
The embodiment of the comprehensive equipment for detecting the rotation of the welding seam of the cylindrical battery cell provided by the invention is specifically shown in fig. 1 and 2:
the cell weld rotation detection device comprises a cell walking and conveying sliding table, a second jacking mechanism 22, a rotation power device, a visual shooting device and a support frame 43;
the cell step-feeding sliding table comprises a first jacking mechanism 12 and a horizontal linear sliding table 11, the horizontal linear sliding table 11 is used for driving the first jacking mechanism 12 to move in the horizontal direction, the first jacking mechanism 12 comprises jacking assemblies 13, and the jacking assemblies 13 are distributed on two sides of a feeding line and used for jacking a supplied cell;
in this embodiment, the second jacking mechanism 22 includes two jacking wheels 32 for supporting the cylindrical battery core to be detected, a jacking power cylinder 31, a connector 33, and a fixing plate 34, the second jacking mechanism 22 is fixedly connected with a supporting frame 43 through the fixing plate 34, and two sides of the supporting frame 43 are respectively provided with the second jacking mechanisms in equal number;
the second jacking mechanism 22 at least comprises two lifting wheels 32 used for supporting the cylindrical battery cell to be detected and a jacking power cylinder 31, when the position information of the battery cell to be detected is received, the jacking power cylinder 31 drives the lifting wheels 32 to jack the battery cell to be detected, the lifting wheels 32 are in line contact with the cylindrical battery cell, and the contact line is parallel to the axis of the cylindrical battery cell and the axis of the lifting wheels 32;
the rotary power device is fixedly connected with a supporting structure at the top of the supporting frame 43 and is positioned right above the detection station, the rotary power device comprises a main power friction wheel 51 and a servo motor 52, when the cell to be detected is jacked up, the upper surface of the rotary power device can be directly contacted with the main power friction wheel 51, the servo motor 52 drives the main power friction wheel 51 to rotate, and the main power friction wheel 51 drives the cell to be detected to rotate; in the embodiment, the servo motor 52 provides power for the three main power friction wheels 51 through the plurality of transmission tracks, accurately controls the rotation speed of the main power friction wheels 51, and facilitates simultaneous detection of a plurality of battery cells;
the support frame 43 is placed at one position of the feeding line 10, and the position of the feeding line 10 can be changed by the support frame 43 according to the requirements of the battery production link;
the visual photographing device comprises an installation mechanism 41 and a three-dimensional photographing camera 42, the visual photographing device is installed on a support frame 43 through a fixed shaft, the installation mechanism 41 is connected with the fixed shaft, the three-dimensional photographing camera 42 is convenient to adjust, the three-dimensional camera is aligned to the position of a welding line of a battery cell to be detected, and the fixed shaft is fixed on the support frame 43.
The application method of the cylindrical battery cell welding seam rotation detection device provided by the embodiment of the invention comprises the following steps:
the feeding line 10 transports the cell to be detected to the initial position of the cell step-feeding sliding table, after the sensor on the cell step-feeding sliding table senses the cell feeding, after the first jacking mechanism 12 is lifted up to jack up the battery cell to be detected, the horizontal linear sliding table 11 drives the first jacking mechanism 12 to move for a fixed distance to reach a detection station, after the sensor on the second jacking mechanism 22 senses the position information of the battery cell to be detected, the jacking power cylinder 31 located under the jacking wheel 32 provides upward driving force for the jacking wheel 32, the two sets of jacking wheels 32 are in contact with the lower surface of the battery cell to be detected to provide upward supporting force for the battery cell to be detected, the battery cell to be detected is jacked up at a constant speed until the upper surface of the battery cell is in contact with the colloid surface of the main power friction wheel 51, the jacking wheel 32 and the main power friction wheel 51 are in line contact with the battery cell to be detected, and the contact line is parallel to the axis of the battery cell to be detected, the jacking wheel 32 and the main power friction wheel 51.
After the main power friction wheel 51 is contacted with the battery cell to be detected, the main power friction wheel 51 is a driving wheel, the servo motor 52 provides power for the main power friction wheel 51, and the main power friction wheel 51 drives the cylindrical battery cell to rotate through friction force, so that the three-dimensional cameras positioned at the two ends of the battery to be detected can acquire complete weld images at the two ends of the battery to be detected.
The cylindrical battery cell welding seam rotation detection device provided by the embodiment of the invention can automatically detect the welding seam of the battery cell to be detected on a production line, is rapid and efficient, saves manpower, and improves the automation level of battery detection.
In an embodiment, a single sensor is directly disposed in the first jacking mechanism 12, the single sensor is disposed on the jacking assembly 13 close to the incoming material direction, when the sensor senses that the battery cell is incoming, the jacking assembly 13 close to the incoming material direction is firstly lifted to jack up the first incoming material battery cell, the subsequent jacking assembly 13 is matched with the feeding line 10 to be lifted in sequence according to the time set in advance until the whole process is in a jacking state, and the arrangement can avoid the sensor being disposed on each jacking assembly 13, thereby reducing the cost.
In one embodiment, a cell step-feeding sliding table in a cylindrical cell weld rotation detection integrated device is provided, as shown in fig. 3,
the cell step-feeding mechanism is arranged on the feeding line 10 and comprises a horizontal linear sliding table 11 and a first jacking mechanism 12, the horizontal linear sliding table 11 is used for driving the first jacking mechanism 12 to move in the horizontal direction, the first jacking mechanism 12 comprises jacking assemblies 13 and sensors, the jacking assemblies 13 are distributed on two sides of the feeding line and used for jacking up the cells of incoming materials, the number of the sensors is the same as that of the jacking assemblies 13 on the same side, and the sensors are used for controlling the jacking assemblies 13 to sequentially lift up after the cells are fed;
after jacking assembly 13 is whole to be jacking state, earlier through first climbing mechanism 12 jack-up electricity core, then drive first climbing mechanism 12 through horizontal sharp slip table 11 with the electricity core fixed distance that gos forward reaches the decline of first climbing mechanism 12 behind the detection station, makes electricity core just in time falls on second climbing mechanism, and horizontal sharp slip table drives first climbing mechanism and gets back to the home position together after that.
In a specific embodiment, a second jacking mechanism in the integrated equipment for detecting rotation of a welding seam of a cylindrical battery cell is provided, as shown in fig. 4:
the second jacking mechanism 22 further includes: the lifting power cylinder 31, the lifting wheel 32, the connector 33, the fixing plate 34 and the slide rail 35;
the jacking power cylinder 31 comprises a fixed end and an action end, the fixed end of the jacking power cylinder 31 is detachably connected with the fixed plate 34, the action end of the jacking power cylinder 31 is fixedly connected with the connector 33, the lifting wheel 32 is installed on one side of the connector 33, and the lifting wheel 32 is used for lifting and stabilizing the battery cell to be detected;
a slide rail groove is formed in one side of the connector 33, a slide rail 35 is arranged on the fixing plate 34, the slide rail 35 is matched with the slide rail groove, and when the second jacking mechanism 22 works, the connector 33 vertically slides along the slide rail 35;
the working principle is that after the battery core is in place, the second jacking mechanism 22 jacks up the battery core, the lower surface of the battery core is contacted with the lifting wheel 32, the upper surface of the battery core is contacted with the main power friction wheel 51, and the main power friction wheel 51 drives the battery core to rotate.
In one particular embodiment, as shown in FIG. 5:
the rotary power device of the device comprises a main power friction wheel 51 and a servo motor 52, wherein the servo motor 52 is positioned above the main power friction wheel, the rotation rate of the main power friction wheel is accurately controlled, and the servo motor 52 transmits power to the main power friction wheel through an industrial belt; the rotation precision of the servo motor 52 needs to reach plus or minus 0.05mm, and the clear imaging of the welding seam of the battery core can be ensured.
The working principle is that after the electric core is in place, the main power friction wheel 51 is jacked and contacted, the rotation speed of the friction wheel is controlled by the servo motor 52, and the visual photographing function is accurately realized by matching with the rhythm of visual photographing.
In one particular embodiment, as shown in FIG. 6:
the visual photographing device of the device comprises an installation mechanism 41 and a three-dimensional photographing camera 42, wherein the visual photographing device is installed on a support frame 43 through a fixed shaft, the installation mechanism 41 takes a rotating shaft as a main body, the position of the three-dimensional photographing camera 42 is convenient to adjust before operation, the installation mechanism 41 is connected with the fixed shaft, and the three-dimensional photographing camera 42 is aligned to the welding seam position of a to-be-detected battery cell;
furthermore, the two sides of the supporting frame 43 are respectively provided with the visual photographing devices with the same number as the second jacking mechanisms, so that the plurality of cylindrical battery cells can be detected simultaneously, and the visual photographing devices on the two sides can photograph different welding positions, so that the detection efficiency is improved, and the automatic production is facilitated;
the operating principle is that after the battery core is in place, the battery core is jacked until the battery core is contacted with the main power friction wheel 51, the servo motor 52 drives the main power friction wheel 51 to rotate, the battery core is driven to rotate through friction power, meanwhile, the three-dimensional photographing camera 42 photographs, takes photographs, and removes welding seams at two ends of the battery core, so that bad welding seam battery cores can be removed conveniently.
The present invention has been described in detail, and the principles and embodiments of the present invention have been described herein using specific examples, which are provided only to assist in understanding the present invention and the core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a rotatory comprehensive equipment that detects of cylinder electricity core welding seam which characterized in that, synthesize equipment and include: the device comprises a feeding line, a cell walking mechanism, a second jacking mechanism, a rotary power device and a visual shooting device;
the cell walking mechanism is arranged on the feeding line and comprises a horizontal linear sliding table and a first jacking mechanism, the horizontal linear sliding table is used for driving the first jacking mechanism to move in the horizontal direction, the first jacking mechanism comprises jacking assemblies and sensors, the jacking assemblies are distributed on two sides of the feeding line and used for jacking a supplied cell, and the sensors are used for sensing the supplied cell condition;
the second jacking mechanism is positioned at the detection station and used for jacking the battery cell after the battery cell arrives at the detection station;
the rotary power device is positioned above the detection station, and after the second jacking mechanism jacks up the incoming material cell, the rotary power device is pressed downwards, so that the second jacking mechanism and the rotary power device are both in tight contact with the incoming material cell;
the visual shooting device is located above the detection station and used for detecting welding seams on two sides of the battery cell to be detected, and the visual shooting device comprises an installation mechanism and a three-dimensional shooting camera.
2. The comprehensive equipment for detecting the rotation of the welding seam of the cylindrical battery core according to claim 1,
the second jacking mechanism comprises a jacking wheel and a jacking power cylinder, the second jacking mechanism is arranged below the battery cell to be detected, the jacking power cylinder is arranged below the jacking wheel, and the jacking wheel can move up and down under the driving of the jacking power cylinder;
the rotary power device comprises a main power friction wheel and a servo motor, the rotary power device provides power for the rotation of the battery cell to be detected, the rotary power device is positioned right above the second jacking mechanism, and the main power friction wheel is driven and controlled by the servo motor; when the battery cell to be detected is jacked up, the upper surface of the battery cell to be detected contacts with the main power friction wheel, and the main power friction wheel provides power for rotation of the battery cell to be detected.
3. The comprehensive equipment for detecting rotation of the welding seam of the cylindrical battery cell according to claim 1, wherein the moving distance of the horizontal linear sliding table is preset in advance, and after the horizontal linear sliding table moves the distance, the battery cell jacked by the first jacking mechanism reaches the position right above the second jacking mechanism.
4. The cylindrical cell weld rotation detection integrated equipment according to claim 2, wherein the second jacking mechanism comprises two lifting wheels, the two lifting wheels are symmetrically distributed about the cell axis and are in tight contact with the surface of the cell during cell rotation detection, and the minimum distance between the lifting wheels is smaller than the diameter of a supplied cell.
5. The comprehensive equipment for detecting rotation of the welding seam of the cylindrical battery cell according to claim 1, wherein the number of the second jacking mechanisms is the same as that of the second jacking mechanisms arranged on two sides of the detection station, and the distance between the second jacking mechanisms on the same side is matched with that between the jacking assemblies on the same side.
6. The comprehensive equipment for detecting rotation of the welding seam of the cylindrical battery cell according to claim 1, further comprising a support frame, wherein the rotary power device and the visual photographing device are fixedly connected with the support frame.
7. The comprehensive equipment for detecting rotation of the welding seam of the cylindrical battery cell of claim 2, wherein the second jacking mechanism further comprises a connector and a fixing plate, the lifting wheel is arranged on one side of the connector, the action end of the jacking power cylinder is fixedly connected with the bottom of the connector, and the second jacking mechanism is connected with the supporting frame through the fixing plate.
8. The comprehensive equipment for detecting rotation of welding seams of cylindrical batteries according to claim 6, wherein the two sides of the supporting frame are respectively provided with a number of visual photographing devices equal to the number of the second jacking mechanisms, and the visual photographing devices are used for simultaneously detecting welding seams of a plurality of batteries.
9. The comprehensive equipment for detecting rotation of the welding seam of the cylindrical battery cell according to claim 2, wherein the main power friction wheel is a special friction wheel, and the outer surface of the main power friction wheel is coated with rubber.
10. The comprehensive equipment for detecting rotation of the welding seam of the cylindrical battery cell according to claim 2, wherein the main power friction wheel rotates at a constant speed, and the rotation speed is matched with the shooting frequency of the visual shooting device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210533490.6A CN114633993A (en) | 2022-05-17 | 2022-05-17 | Cylinder electricity core welding seam rotation detection integrated equipment |
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| CN202210533490.6A CN114633993A (en) | 2022-05-17 | 2022-05-17 | Cylinder electricity core welding seam rotation detection integrated equipment |
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| CN202210533490.6A Pending CN114633993A (en) | 2022-05-17 | 2022-05-17 | Cylinder electricity core welding seam rotation detection integrated equipment |
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| CN117723007A (en) * | 2024-02-09 | 2024-03-19 | 宁德时代新能源科技股份有限公司 | Detection system and detection method for cylindrical battery cell closing gap |
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