CN220196591U - Welding device for composite current collector - Google Patents

Abstract

The utility model discloses a composite current collector welding device, which includes an ultrasonic welding component, a foil conveying component, and a foil cutting knife; during welding, the clamping driver drives the clamping component to drive the end of the foil to be transported to At the ultrasonic welding component, the end of the foil is welded to the composite current collector. At this time, the clamping component releases the foil, and the clamping driver drives the clamping component to clamp the lower part of the foil. When the lower part of the foil is clamped When the component is clamped, the foil cutting knife cuts the foil. Driven by the clamping driver, the clamping member can accurately clamp the foil to the position to be welded, making the welding more precise and preventing the foil from being welded. When the tab welding fails due to insufficient fit or uncontrollable relative position between the material and the composite current collector, the welding rhythm is tight and the welding efficiency is high. After the foil cutter is cut, the foil can be cut into a sheet-shaped tab. The form is welded together with the composite current collector, eliminating the need for die cutting.

Description

Composite current collector welding device

Technical field

The utility model relates to the field of welding technology, in particular to a composite current collector welding device.

Background technique

The current collector is a structure used to collect current in the battery. The composite current collector generally includes a polymer layer in the middle and metal plating on both sides of the polymer layer. In order to collect the current from the metal plating on both sides of the polymer layer, and To form the tabs, it is necessary to weld the strip-shaped foil material on one side of the composite current collector, and then cut the foil material through a die-cutting device to form the tabs, and the strip-shaped foil material roll is unrolled After being transported to the surface of the composite current collector, the position in contact with the surface of the composite current collector in the strip foil is far away from the material roll, so it is easy to shift. There are cases where the foil and the composite current collector do not fit well enough or the relative position is inaccurate. situation, causing the tab welding to fail, thereby reducing the welding yield.

Utility model content

The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, an embodiment of the present utility model proposes a composite current collector welding device, which includes an ultrasonic welding component, a foil conveying component, and a foil cutting knife; the ultrasonic welding component is used to weld the composite current collector to the foil; The foil conveying assembly includes a clamping assembly and a clamping driving member. The clamping assembly is used to clamp the foil. The clamping driving member is connected to the clamping assembly. The clamping driving member is used to drive the foil. The clamping assembly is such that the clamping assembly transports the foil to the ultrasonic welding assembly; the foil cutting knife is located between the ultrasonic welding assembly and the foil conveying assembly, and the foil The foil cutter is used to cut foil.

According to some embodiments of the present invention, the ultrasonic welding assembly includes an ultrasonic welding head and a welding base, and the ultrasonic welding head faces the welding base.

According to some embodiments of the present invention, the ultrasonic welding assembly further includes a moving driving member, the moving driving member is used to drive the ultrasonic welding head to move toward or away from the welding base.

According to some embodiments of the present invention, the ultrasonic welding assembly further includes a moving plate, the ultrasonic welding head is fixed on the moving plate, and the moving plate is mounted on the moving driving member.

According to some embodiments of the present invention, the clamping assembly includes a first claw part and a second claw part. The first claw part and the second claw part are connected with an opening and closing driving member. The opening and closing driving part A component controls the first claw part and the second claw part to approach or move away from each other, and the opening and closing driving part is connected with the clamping driving part.

According to some embodiments of the present invention, the clamping assembly further includes a lifting plate and a stand. The lifting plate is slidably mounted on the stand, and the opening and closing driving member is fixedly mounted on the lifting plate. The lifting plate is connected with the clamping driving part.

According to some embodiments of the present invention, a slide rail and slider assembly is connected between the lifting plate and the stand.

According to some embodiments of the present invention, the foil conveying assembly further includes a discharging reel, the discharging reel is rotatably mounted on a shaft frame, and a foil roll is loaded on the discharging reel.

According to some embodiments of the present invention, it also includes a composite current collector unloading reel and a composite current collector collecting reel, and the ultrasonic welding assembly is disposed between the composite current collector unloading reel and the composite current collector collecting reel. , the composite current collector on the composite current collector discharge reel is rolled up by the composite current collector rewinding reel after passing through the ultrasonic welding assembly.

According to some embodiments of the present invention, the foil cutting knife includes a fixed blade and a movable blade. The rear end of the movable blade is fixedly connected to the cylinder, and the fixed blade and the movable blade are connected through a pivot.

The utility model has at least the following beneficial effects:

During welding, the clamping driver drives the clamping assembly to drive the end of the foil to the welding base. At this time, the foil is located between the composite fluid strip and the ultrasonic welding assembly, so that the end of the foil is in contact with the composite current collector. Welding, at this time, the clamping assembly releases the foil, and the clamping driver drives the clamping assembly to clamp the lower part of the foil. When the lower part of the foil is clamped by the clamping assembly, the foil cutting knife cuts the foil. , at the same time, the composite current collector that has completed tab welding leaves the welding surface. Driven by the clamping driver, the clamping member can accurately clamp the foil to the position to be welded, making the welding more precise, thereby avoiding the possibility of foil damage. The welding of the tabs fails due to insufficient fit or uncontrollable relative position between the material and the composite current collector. The welding rhythm is tight and the welding efficiency is high. In addition, after the foil cutter is cut, the foil can be cut into sheets. The shape of the lug is combined with the welding of the composite current collector, and there is no need to add a lug die-cutting device to die-cut the strip-shaped foil welded to the composite current collector.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

Figure 1 is an overall side view schematic diagram of an embodiment of the present utility model;

Figure 2 is a schematic side view of the foil conveying assembly according to the embodiment of the present invention;

Figure 3 is a three-dimensional schematic view of the foil conveying assembly according to the embodiment of the present invention;

Figure 4 is a schematic top view of an ultrasonic welding assembly according to an embodiment of the present invention.

Detailed ways

The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the drawings, in which the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and cannot be understood as limitations of the present invention.

In the description of the present invention, it should be understood that the orientation descriptions involved, such as the orientation or positional relationships indicated by up, down, front, back, left, right, etc. are based on the orientation or positional relationships shown in the drawings, and only It is intended to facilitate the description of the present invention and simplify the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

In the description of the present invention, the meaning of plural means two or more, and greater than, less than, over, etc. are understood as excluding the original number. If there is a description of first and second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the order of indicated technical features. relation.

In the description of the present utility model, unless otherwise explicitly limited, words such as setting, installation, and connection should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meaning of the above words in the present utility model in combination with the specific content of the technical solution. .

Referring to Figure 1, a composite current collector welding device includes an ultrasonic welding assembly 100, a foil conveying assembly 200, and a foil cutting knife 300; the ultrasonic welding assembly 100 is used to weld a composite current collector to a foil; the foil conveying The assembly 200 includes a clamping assembly 210 and a clamping driving member 220. The clamping assembly 210 is used to clamp the foil material. The clamping driving member 220 is connected to the clamping assembly 210. The clamping driving member 220 is used to lift and lower the clamping assembly 210. So that the clamping assembly 210 transports the foil to the ultrasonic welding assembly 100;

The foil cutting knife 300 is located between the ultrasonic welding assembly 100 and the foil conveying assembly 200, and is used for cutting foil.

During welding, the clamping driver 220 drives the clamping assembly 210 to rise, thereby driving the end of the foil to rise to the ultrasonic welding assembly 100. At this time, the foil is located between the composite fluid strip and the ultrasonic welding assembly 100. The ultrasonic wave The welding assembly 100 welds the end of the foil to the composite current collector. At this time, the clamping assembly 210 releases the foil, and the clamping driver 220 drives the clamping assembly 210 to descend and clamp the lower part of the foil. When the lower part of the foil When being clamped by the clamping assembly 210, the foil cutting knife 300 cuts the foil. At the same time, the composite current collector that has completed tab welding leaves the welding surface 121, making the welding more accurate, thereby reducing the amount of contact between the foil and the composite collector. Insufficient fluid fit or uncontrollable relative position causes tab welding failure. The welding rhythm is tight and the welding efficiency is high.

Referring to Figure 4, the ultrasonic welding assembly 100 includes an ultrasonic welding head 110, a welding base 120, and a moving driving part 140. The ultrasonic welding head 110 faces the welding base 120, and the welding base 120 is provided with a welding surface facing the ultrasonic welding head 110, which moves The driving member 140 is used to drive the ultrasonic welding head 110 to move toward or away from the welding surface, so that the ultrasonic welding head 110 welds the foil and the composite current collector, and after the welding is completed, the ultrasonic welding head 110 moves away from the welding surface 121 direction, so that the composite current collector that has completed foil welding leaves the welding surface 121.

In this embodiment, the moving driving member 140 adopts a slide cylinder.

Referring to Figures 2 and 3, the clamping assembly 210 includes a first claw part 211 and a second claw part 212. A clamping area is formed between the first claw part 211 and the second claw part 212, and the foil is located in the clamping area. In the area, the first claw part 211 and the second claw part 212 are installed on the opening and closing driving part 213. The opening and closing driving part 213 controls the first claw part 211 and the second claw part 212 to approach or move away from each other. The opening and closing driving part 213 Connected to the clamping driver 220.

The opening and closing driving part 213 is fixed on the lifting plate 214. The lifting plate 214 is connected to the clamping driving part 220. The clamping driving part 220 moves up and down through the opening and closing driving part 213, so that the clamping component 210 is close to or away from the welding base 120.

The clamping assembly 210 also includes a lifting plate 214 and a stand 215. The lifting plate 214 is slidably mounted on the stand 215. The opening and closing driving part 213 is fixedly installed on the lifting plate 214. The lifting plate 214 is connected to the clamping driving part 220. The driving member 220 drives the clamping assembly 210 to lift.

In order to improve the stability of lifting, a slide rail slider assembly is connected between the lifting plate 214 and the stand 215.

The clamping driver 220 adopts two implementation modes:

The clamping driving member 220 adopts a cylinder, and the piston rod of the cylinder is connected to the lifting plate 214.

The clamping driver 220 adopts a screw rod. The lifting plate 214 is equipped with a nut. The screw rod is inserted into the nut. By rotating the screw rod, the lifting plate 214 moves up and down along the screw rod.

Referring to Figure 1, in order to facilitate the placement of foil rolls, the foil conveying assembly 200 also includes a unwinding reel 230. The unwinding reel 230 is rotatably mounted on the shaft frame 240, and the foil roll is loaded on the unwinding reel 230.

Referring to Figure 1, it also includes a composite current collector unloading reel 400 and a composite current collector receiving reel 500. The composite current collector unloading reel 400 and the composite current collector receiving reel 500 respectively adopt two composite current collector unloading reels. 400 and the composite current collector retracting reel 500 are respectively arranged on both sides of the welding base 120. The composite current collector on the composite current collector unloading reel 400 passes through the welding surface 121 and is rolled up by the composite current collector retracting reel 500 to achieve composite collection. Unwinding and rewinding fluid to improve production efficiency.

The composite current collector take-up reel 500 is mounted on the motor, so that the composite current collector take-up reel rotates, thereby driving the composite current collector to move.

In this embodiment, the foil cutting knife 300 includes a fixed blade and a movable blade. The rear end of the movable blade is fixedly connected to the cutting cylinder. The fixed blade and the movable blade are connected through a pivot, and the movable blade is pushed or pulled by the cutting cylinder. , to achieve the opening and closing actions between the movable blade and the fixed blade.

In the description of this specification, reference to the terms "some embodiments" or "it is contemplated" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one aspect of the invention. in an embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions and changes can be made to these embodiments without departing from the principles and purposes of the present invention. Modifications, the scope of the present invention is defined by the claims and their equivalents.

Claims (10)

1. A composite current collector welding device, characterized in that it includes: Ultrasonic welding assembly (100), the ultrasonic welding assembly (100) is used to weld the composite current collector and the foil material; Foil conveying assembly (200). The foil conveying assembly (200) includes a clamping assembly (210) and a clamping driver (220). The clamping assembly (210) is used to clamp foil, and the clamping assembly (210) is used to clamp foil. The driving member (220) is connected with the clamping assembly (210), and the clamping driving member (220) is used to drive the clamping assembly (210) so that the clamping assembly (210) holds the foil material Transported to the ultrasonic welding assembly (100); Foil cutting knife (300), the foil cutting knife (300) is located between the ultrasonic welding assembly (100) and the foil conveying assembly (200), the foil cutting knife (300) ) for cutting foil. 2. A composite current collector welding device according to claim 1, characterized in that the ultrasonic welding assembly (100) includes an ultrasonic welding head (110) and a welding base (120), and the ultrasonic welding head (110) ) toward the welding base (120). 3. A composite current collector welding device according to claim 2, characterized in that the ultrasonic welding assembly (100) further includes a moving driving member (140), and the moving driving member (140) is used to drive the The ultrasonic welding head (110) moves toward or away from the welding base (120). 4. A composite current collector welding device according to claim 2, characterized in that the ultrasonic welding assembly (100) further includes a moving plate (130), and the ultrasonic welding head (110) is fixed on the moving plate. The moving plate (130) is mounted on the moving driving part (140). 5. A composite current collector welding device according to claim 1, characterized in that the clamping assembly (210) includes a first claw part (211) and a second claw part (212), and the first claw part (212) The claw part (211) and the second claw part (212) are connected with an opening and closing driving member (213). The opening and closing driving member (213) controls the first claw part (211) and the second claw part. The opening and closing driving parts (212) are close to or away from each other, and the opening and closing driving part (213) is connected with the clamping driving part (220). 6. A composite current collector welding device according to claim 5, characterized in that the clamping assembly (210) further includes a lifting plate (214) and a stand (215), and the lifting plate (214) It is slidably mounted on the stand (215), the opening and closing driving part (213) is fixedly installed on the lifting plate (214), and the lifting plate (214) is connected with the clamping driving part (220) , the clamping driver (220) drives the clamping assembly (210) to lift. 7. A composite current collector welding device according to claim 6, characterized in that a slide rail slider assembly is connected between the lifting plate (214) and the stand (215). 8. A composite current collector welding device according to claim 1, characterized in that the foil conveying assembly (200) further includes a discharge reel (230), and the discharge reel (230) is rotatably mounted on On the shaft frame (240), the foil roll is loaded on the unwinding reel (230). 9. A composite current collector welding device according to claim 1, further comprising a composite current collector unloading reel (400) and a composite current collector receiving reel (500), the composite current collector unloading reel (500) The ultrasonic welding assembly (100) is disposed between the reel (400) and the composite current collector receiving reel (500), and the composite current collector on the composite current collector unloading reel (400) passes through the ultrasonic welding assembly (100) and then taken up by the composite current collector take-up reel (500). 10. A composite current collector welding device according to claim 1, characterized in that the foil cutting knife (300) includes a fixed blade and a movable blade, and the rear end of the movable blade is fixedly connected to the cylinder, The fixed blade and the movable blade are connected by a pivot.