Automatic assembling equipment for full-pole lug cylindrical battery current collector plate of flexible clamping mechanism

Abstract

The application discloses a kind of flexible clamping mechanism's full tab cylindrical battery current collector disc automation assembly equipment, including bottom plate, intermittent conveying mechanism and clamping mechanism, the intermittent conveying mechanism for the intermittent transmission of current collector disc is fixedly installed on the upper top surface of the bottom plate, this kind of flexible clamping mechanism's full tab cylindrical battery current collector disc automation assembly equipment is driven by the intermittent meshing transmission of initiative intermittent wheel and driven intermittent wheel, replaces traditional continuous conveying structure, can realize the fixed angle, fixed distance step feed of conveying belt, accurately control the conveying stop position of current collector disc, avoid the position deviation problem caused by continuous conveying, and equipment is driven by motor and screw thread transmission of screw rod, realize the high-precision displacement adjustment of clamping mechanism horizontal direction, realize the accurate lifting control of vertical direction by servo electric cylinder cooperation guiding structure of slide bar, two-dimensional adjustment can quickly complete the accurate transfer of current collector disc from conveying station to battery assembly station, without manual intervention throughout.

Description

Technical Field

[0001] This invention relates to the field of all-tab cylindrical battery technology, specifically to an automated assembly equipment for all-tab cylindrical battery current collectors with a flexible clamping mechanism. Background Technology

[0002] With the rapid development of industries such as new energy vehicles and energy storage power stations, the market has placed higher demands on the energy density, charge / discharge rate, cycle life, and safety performance of lithium-ion batteries. Compared with traditional single / double-tab cylindrical batteries, all-tab cylindrical batteries significantly shorten the electron conduction path and reduce the battery's internal resistance by using the entire edge of the electrode as the tab, thus achieving improved high-rate charge / discharge performance. At the same time, they effectively reduce the temperature rise during battery charging and discharging, combining high energy density and high safety. This has become one of the core technology directions in the fields of power batteries and energy storage batteries, especially the 46 series large-size all-tab cylindrical batteries, which have become the mainstream iterative product in the industry. However, the existing automated assembly equipment for all-tab cylindrical battery current collectors with a flexible clamping mechanism still has certain shortcomings. While traditional automated assembly equipment for cylindrical battery current collectors with flexible clamping mechanisms can be used effectively, traditional equipment suffers from poor horizontal and vertical alignment accuracy, difficulty in controlling the coaxiality of the current collector and battery tabs, uneven bonding gaps, poor welding consistency, numerous manual intervention steps, low automation, slow cycle time per process, and low production efficiency, which often troubles users. Summary of the Invention

[0003] The purpose of this invention is to provide an automated assembly equipment for cylindrical battery current collectors with a flexible clamping mechanism, in order to solve the problems mentioned in the background art, such as poor horizontal and vertical alignment adjustment accuracy of traditional equipment, difficulty in controlling the coaxiality of the current collector and battery tabs, uneven bonding gap, poor welding consistency, many manual intervention steps, low degree of automation, slow single-process cycle time, and low production efficiency, which often trouble users.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an automated assembly equipment for a flexible clamping mechanism for a cylindrical battery current collector, comprising a base plate, an intermittent conveying mechanism, and a clamping mechanism. The clamping mechanism includes a support frame, a drive motor, a lead screw, a sliding plate, a servo cylinder, a support plate, a sliding rod, an electric push rod, a connecting seat, a connecting rod, a push plate, a clamping plate, and a bidirectional threaded rod. The support frame is fixedly mounted on the upper top surface of the base plate. The drive motor is fixedly mounted on one side of the support frame. A lead screw is fixedly mounted on the output end of the drive motor, and the lead screw is connected to the support frame by a bearing. A sliding plate is threaded onto the lead screw. A servo cylinder is fixedly mounted on the upper top surface of the sliding plate. A support plate is fixedly mounted on the output end of the servo cylinder. Four sets of sliding rods that are slidably connected to the sliding plate are fixedly mounted on the upper top surface of the support plate. A push plate is slidably connected to the support plate. A clamping plate is slidably connected to the push plate. A bidirectional threaded rod that is threadedly connected to the clamping plate is bearing-connected to the push plate. An intermittent conveying mechanism for intermittently conveying the collector plate is fixedly installed on the top surface of the base plate.

[0005] As a preferred embodiment of the present invention, an electric push rod is fixedly installed on the upper top surface of the support plate, a connecting seat is fixedly installed on the upper top surface of the electric push rod, a connecting rod is hinged to one side of the connecting seat, and a push plate is hinged to the other end of the connecting rod.

[0006] As a preferred embodiment of the present invention, the connecting rod, push plate, clamping plate and bidirectional threaded rod are arranged symmetrically about the center of the support plate.

[0007] As a preferred embodiment of the present invention, the intermittent conveying mechanism includes a housing, a drive motor, a drive shaft, a driving intermittent wheel, a driven intermittent wheel, a rotating rod, a sprocket, and a chain. The housing is fixedly installed on the base plate, and the drive motor is fixedly installed on one side of the housing.

[0008] As a preferred embodiment of the present invention, a drive shaft is fixedly installed at the output end of the drive motor, an active intermittent wheel is fixedly installed on the drive shaft, a driven intermittent wheel is used in conjunction with the active intermittent wheel, and a rotating rod is fixedly installed on the driven intermittent wheel.

[0009] As a preferred embodiment of the present invention, the support plate is provided with a guide groove that slides with the push plate, the push plate is provided with a slide rail that slides with the clamping plate, and the sliding direction of the push plate is perpendicular to the sliding direction of the clamping plate.

[0010] As a preferred embodiment of the present invention, it further includes a controller, which is electrically connected to the drive motor, the servo cylinder, the electric push rod, and the transmission motor respectively; the controller is configured as follows: The transmission motor is controlled to drive the intermittent conveying mechanism to stepwise convey the collector plate to the preset clamping position and then stop. The drive motor and the servo cylinder are controlled sequentially to move the clamping mechanism above the collector plate and align it. The electric push rod is controlled to operate, and the clamping plate is driven by the connecting rod and the push plate to hold the collector plate. The servo cylinder and the drive motor are controlled to run again, moving the clamping mechanism holding the current collector and lowering it to the assembly station of the all-tab cylindrical battery.

[0011] As a preferred embodiment of the present invention, the controller is communicatively connected to the bidirectional threaded rod and is configured as follows: Before the clamping mechanism performs the clamping action, the specification information of the all-tab cylindrical battery to be clamped is obtained; Based on the specifications, the bidirectional threaded rod is driven to rotate to adjust the initial opening and closing distance between the clamps so that it matches the outline dimensions of the all-tab cylindrical battery.

[0012] As a preferred embodiment of the present invention, two sets of sprockets are fixedly installed on the rotating rod, a chain is engaged with the outside of the sprockets, and a conveyor belt is fixedly installed on the outside of the chain.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: This automated assembly equipment for a flexible clamping mechanism for a cylindrical battery current collector uses intermittent meshing transmission between an active intermittent wheel and a driven intermittent wheel to replace the traditional continuous conveying structure. It can realize fixed-angle and fixed-distance step conveying of the conveyor belt, accurately control the conveying stop position of the current collector, and avoid the station offset and over-conveying problems caused by continuous conveying. Furthermore, the equipment achieves high-precision horizontal displacement adjustment of the clamping mechanism through the threaded transmission of the drive motor and the lead screw, and achieves precise vertical lifting control through the guide structure of the servo electric cylinder and the slide rod. The dual-dimensional adjustment can quickly complete the precise transfer of the current collector from the conveying station to the battery assembly station without manual intervention throughout the process. Attached Figure Description

[0014] Figure 1 This is a front-view stereoscopic structural diagram of the present invention; Figure 2 This is a schematic diagram of the front cross-sectional structure of the intermittent conveying mechanism of the present invention; Figure 3 This is a front view split structure diagram of the intermittent conveying mechanism of the present invention; Figure 4 This is a schematic diagram of the front cross-sectional structure of the clamping mechanism of the present invention; Figure 5 This is a schematic diagram of the front cross-sectional structure of the skateboard of the present invention; Figure 6 This is a schematic diagram of the main cross-sectional structure of the push plate of the present invention.

[0015] In the diagram: 1. Base plate; 2. Intermittent conveying mechanism; 201. Housing; 202. Drive motor; 203. Drive shaft; 204. Driving intermittent wheel; 205. Driven intermittent wheel; 206. Rotating rod; 207. Sprocket; 208. Chain; 3. Clamping mechanism; 301. Support frame; 302. Drive motor; 303. Lead screw; 304. Slide plate; 305. Servo electric cylinder; 306. Support plate; 307. Slide rod; 308. Electric push rod; 309. Connecting seat; 310. Connecting rod; 311. Push plate; 312. Clamping plate; 313. Bidirectional threaded rod. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figure 1-6 This invention provides a technical solution: an automated assembly equipment for a flexible clamping mechanism of a cylindrical battery current collector with all tabs, comprising a base plate 1, an intermittent conveying mechanism 2, and a clamping mechanism 3. The clamping mechanism 3 includes a support frame 301, a drive motor 302, a lead screw 303, a sliding plate 304, a servo cylinder 305, a support plate 306, a sliding rod 307, an electric push rod 308, a connecting seat 309, a connecting rod 310, a push plate 311, a clamping plate 312, and a bidirectional threaded rod 313. The support frame 301 is fixedly mounted on the upper surface of the base plate 1, and the drive motor 302 is fixedly mounted on one side of the support frame 301. A lead screw 303 is fixedly installed at the output end of the machine 302, and the lead screw 303 is connected to the support frame 301 by a bearing. A slide plate 304 is threadedly connected to the lead screw 303. A servo electric cylinder 305 is fixedly installed on the top surface of the slide plate 304. A support plate 306 is fixedly installed at the output end of the servo electric cylinder 305. Four sets of slide rods 307 are fixedly installed on the top surface of the support plate 306 and are slidably connected to the slide plate 304. A push plate 311 is slidably connected to the support plate 306. A clamping plate 312 is slidably connected to the push plate 311. A bidirectional threaded rod 313 that is threadedly connected to the clamping plate 312 is bearing connected to the push plate 311. An intermittent conveying mechanism 2 for intermittently conveying the collector plate is fixedly installed on the top surface of the base plate 1.

[0018] An electric push rod 308 is fixedly installed on the top surface of the support plate 306. A connecting seat 309 is fixedly installed on the top surface of the electric push rod 308. A connecting rod 310 is hinged to one side of the connecting seat 309, and a push plate 311 is hinged to the other end of the connecting rod 310.

[0019] The connecting rod 310, push plate 311, clamping plate 312 and bidirectional threaded rod 313 are arranged symmetrically about the center of the support plate 306.

[0020] The intermittent conveying mechanism 2 includes a housing 201, a drive motor 202, a drive shaft 203, a driving intermittent wheel 204, a driven intermittent wheel 205, a rotating rod 206, a sprocket 207, and a chain 208. The housing 201 is fixedly installed on the base plate 1, and the drive motor 202 is fixedly installed on one side of the housing 201.

[0021] A drive shaft 203 is fixedly installed at the output end of the drive motor 202. A drive intermittent wheel 204 is fixedly installed on the drive shaft 203. A driven intermittent wheel 205 is used in conjunction with the drive intermittent wheel 204. A rotating rod 206 is fixedly installed on the driven intermittent wheel 205.

[0022] Two sets of sprockets 207 are fixedly installed on the rotating rod 206. A chain 208 is engaged with the outside of the sprockets 207, and a conveyor belt is fixedly installed on the outside of the chain 208.

[0023] Working principle: When using an automated assembly equipment for a full-tab cylindrical battery current collector with a flexible clamping mechanism, firstly, according to the external dimensions of the current collector to be assembled, rotate the bidirectional threaded rod 313 on the push plate 311. Through the forward and reverse thread transmission between the bidirectional threaded rod 313 and the two sets of clamping plates 312, adjust the initial opening and closing distance of the symmetrically arranged clamping plates 312 so that the clamping working surface of the clamping plates 312 matches the contour of the full-tab cylindrical battery, and complete the pre-adjustment of clamping parameters for current collectors of different specifications. At the same time, the control system presets the running stroke, speed and start-stop cycle of the drive motor 302, servo cylinder 305, electric push rod 308 and transmission motor 202 to complete the initialization and reset of the equipment. The drive motor 202 of the intermittent conveying mechanism 2 is started. The drive motor 202 drives the drive shaft 203 at its output end to rotate on a fixed axis inside the housing 201. Simultaneously, it drives the active intermittent wheel 204 on the drive shaft 203 to rotate. The active intermittent wheel 204 drives the driven intermittent wheel 205 to rotate intermittently at a fixed angle through intermittent meshing transmission. Then, through the driven intermittent wheel 205, it drives the rotating rod 206 to rotate intermittently. The rotating rod 206 drives the two sets of sprockets 207 fixed on its outer wall to rotate synchronously. Through the meshing transmission between the sprockets 207 and the chain 208, it drives the conveyor belt on the outside of the chain 208 to perform step-by-step intermittent conveying, and accurately conveys the collection plate to be assembled to the clamping station directly below the clamping mechanism 3 at a fixed distance, thus completing the station positioning of the collection plate. Then, the drive motor 302 of the clamping mechanism 3 is started. The drive motor 302 drives the lead screw 303 to rotate on the support frame 301. Through the threaded transmission between the lead screw 303 and the slide plate 304, the slide plate 304 is driven to make horizontal linear displacement along the axis of the lead screw 303. The clamping execution component integrated on the slide plate 304 is precisely moved to the top of the all-tab cylindrical battery to complete the horizontal alignment adjustment. After the alignment is completed, the servo cylinder 305 is started. The output end of the servo cylinder 305 drives the support plate 306 to make vertical lifting displacement. The support plate 306 is vertically guided by four sets of slide rods 307 that pass through the slide plate 304 to ensure the verticality and running stability of the lifting process. The clamping plate 312 on the support plate 306 is precisely lowered to the clamping working height of the all-tab cylindrical battery to complete the vertical alignment. Simultaneously, the electric push rod 308 is activated, causing the connecting seat 309 fixed at its top to move vertically upward. The connecting seat 309, through the connecting rods 310 hinged on both sides, pushes the two symmetrically arranged push plates 311 to slide horizontally towards each other along the support plate 306, thereby causing the clamping plates 312 on the push plates 311 to move synchronously towards each other. Through the centering action of the two symmetrical clamping plates 312, the stable and flexible clamping of the all-tab cylindrical battery is completed. After clamping is completed, the servo cylinder 305 drives the support plate 306 to rise vertically and reset, and the drive motor 302 drives the lead screw 303 to rotate in the opposite direction, causing the slide plate 304 to move horizontally to the assembly position of the collector plate. Directly above, the servo cylinder 305 drives the support plate 306 to descend vertically again, accurately placing the clamped full-tab cylindrical battery into the current collector, completing the precise assembly of the full-tab cylindrical battery. After assembly, the electric push rod 308 reverses its movement, driving the connecting seat 309 to descend vertically. Through the connecting rod 310, the two sets of push plates 311 and clamping plates 312 move in opposite directions, releasing the full-tab cylindrical battery. The servo cylinder 305 drives the clamping mechanism 3 to reset, entering the next work cycle, realizing the continuous automated assembly of the current collector, thus completing a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0024] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automated assembly equipment for a cylindrical battery current collector with a flexible clamping mechanism, comprising a base plate (1), an intermittent conveying mechanism (2), and a clamping mechanism (3); characterized in that: The clamping mechanism (3) includes a support frame (301), a drive motor (302), a lead screw (303), a slide plate (304), a servo electric cylinder (305), a support plate (306), a slide rod (307), an electric push rod (308), a connecting seat (309), a connecting rod (310), a push plate (311), a clamping plate (312), and a bidirectional threaded rod (313). The support frame (301) is fixedly installed on the top surface of the base plate (1). The drive motor (302) is fixedly installed on one side of the support frame (301). The lead screw (303) is fixedly installed at the output end of the drive motor (302), and the lead screw (303) is connected to the support frame. (301) is a bearing connection. A slide plate (304) is threaded onto the lead screw (303). A servo electric cylinder (305) is fixedly installed on the top surface of the slide plate (304). A support plate (306) is fixedly installed at the output end of the servo electric cylinder (305). Four sets of slide rods (307) that are slidably connected to the slide plate (304) are fixedly installed on the top surface of the support plate (306). A push plate (311) is slidably connected onto the support plate (306). A clamping plate (312) is slidably connected onto the push plate (311). A bidirectional threaded rod (313) that is threadedly connected to the clamping plate (312) is bearing connected to the push plate (311). An intermittent conveying mechanism (2) for intermittently conveying the collector plate is fixedly installed on the top surface of the base plate (1).

2. The automated assembly equipment for a flexible clamping mechanism of a cylindrical battery current collector with all tabs according to claim 1, characterized in that, An electric push rod (308) is fixedly installed on the upper top surface of the support plate (306), and a connecting seat (309) is fixedly installed on the upper top surface of the electric push rod (308). A connecting rod (310) is hinged to one side of the connecting seat (309), and a push plate (311) is hinged to the other end of the connecting rod (310).

3. The automated assembly equipment for a flexible clamping mechanism of a cylindrical battery current collector with all tabs according to claim 2, characterized in that, The connecting rod (310), push plate (311), clamping plate (312) and bidirectional threaded rod (313) are arranged symmetrically about the center of the support plate (306).

4. The automated assembly equipment for a flexible clamping mechanism of a cylindrical battery current collector with all tabs according to claim 1, characterized in that, The intermittent conveying mechanism (2) includes a housing (201), a drive motor (202), a drive shaft (203), an active intermittent wheel (204), a driven intermittent wheel (205), a rotating rod (206), a sprocket (207), and a chain (208). The housing (201) is fixedly installed on the base plate (1), and the drive motor (202) is fixedly installed on one side of the housing (201).

5. The automated assembly equipment for a flexible clamping mechanism of a cylindrical battery current collector with all tabs according to claim 4, characterized in that, The output end of the drive motor (202) is fixedly mounted with a drive shaft (203), a drive intermittent wheel (204) is fixedly mounted on the drive shaft (203), a driven intermittent wheel (205) is used in conjunction with the drive intermittent wheel (204), and a rotating rod (206) is fixedly mounted on the driven intermittent wheel (205).

6. The automated assembly equipment for a flexible clamping mechanism of a cylindrical battery current collector with all tabs according to claim 5, characterized in that, Two sets of sprockets (207) are fixedly installed on the rotating rod (206). A chain (208) is engaged with the outside of the sprockets (207), and a conveyor belt is fixedly installed on the outside of the chain (208).

7. The automated assembly equipment for a flexible clamping mechanism of a cylindrical battery current collector with all tabs according to claim 1, characterized in that, The support plate (306) has a guide groove that slides with the push plate (311), the push plate (311) has a slide rail that slides with the clamping plate (312), and the sliding direction of the push plate (311) is perpendicular to the sliding direction of the clamping plate (312).

8. The automated assembly equipment for a flexible clamping mechanism of a cylindrical battery current collector with all tabs according to claim 4, characterized in that, It also includes a controller, which is electrically connected to the drive motor (302), the servo cylinder (305), the electric push rod (308), and the transmission motor (202), respectively; the controller is configured as follows: Control the drive motor (202) to drive the intermittent conveying mechanism (2) to move, and step the collector plate to the preset clamping position and stop; The drive motor (302) and the servo cylinder (305) are controlled in sequence to move the clamping mechanism (3) above the collector and align it; The electric push rod (308) is controlled to operate, and the clamping plate (312) is driven to hold the collector plate through the connecting rod (310) and the push plate (311); The servo cylinder (305) and the drive motor (302) are controlled to run again, and the clamping mechanism (3) holding the current collector is moved and lowered to the assembly station of the all-tab cylindrical battery.

9. The automated assembly equipment for a flexible clamping mechanism of a cylindrical battery current collector with all tabs according to claim 8, characterized in that, The controller is communicatively connected to the bidirectional threaded rod (313) and is configured to: Before the clamping mechanism (3) performs the clamping action, the specification information of the all-tab cylindrical battery to be clamped is obtained; Based on the specifications, the bidirectional threaded rod (313) is driven to rotate to adjust the initial opening and closing distance between the clamps (312) so that it matches the outline dimensions of the all-tab cylindrical battery.

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