Universal clamp for ring welding of lithium battery sealing cover for new energy automobile

Abstract

The invention discloses a universal clamp for ring welding of a lithium battery sealing cover for a new energy automobile. The universal clamp for the ring welding of the lithium battery sealing coverfor the new energy automobile comprises a bidirectional screw rod and two side fixing plates which are arranged in parallel, wherein bearings are arranged on the inner sides of the side fixing plates, a guide rod is further arranged between the side fixing plates, a fixing base is fixed in the middle of the guide rod, a connecting rod connected in a sliding mode is arranged at the upper end of the fixing base, a bottom plate is arranged at the upper end of the connecting rod, and sliding bases are arranged at the two ends of the bidirectional screw rod; and a supporting plate is arranged at the top of the sliding bases, a sliding rail and a push rod motor are arranged on the supporting plate, sliding blocks are arranged on the sliding rail, circular grooves are formed in the side faces ofthe sliding blocks, sliding rods are arranged in the circular grooves, identification rings are arranged on the surfaces of the sliding rods, springs are arranged at one ends of the sliding rods, oneends of the springs are fixed at the bottoms of the circular grooves, and the other ends of the sliding rods are provided with clamping blocks which are symmetric about the center of the bidirectional screw rod. The device is suitable for fixing different lithium batteries and is high in universality, the manufacturing cost of the clamp is reduced, the clamping force of the lithium battery is controlled by using the springs, so that the clamping force of the lithium battery can be kept in a proper interval, and a battery shell is effectively protected.

Description

technical field [0001] The invention belongs to the technical field of lithium battery production, and in particular relates to a universal clamp for sealing and ring welding of lithium batteries used in new energy vehicles. Background technique [0002] The lithium battery case is an important part of the lithium battery. During the production process of the lithium battery case, the covers at both ends still need to be welded after assembly to make them more firm and tight. In the past, manual welding was often used for welding the covers, and there are many deficiencies in manual welding. , such as high labor intensity, time-consuming and labor-intensive, slow speed, low efficiency, uneven weld seam, welding sparks splashing and polluting the shell, affecting the appearance of beauty, etc., thus manual welding is gradually replaced by mechanical welding, no matter what welding method needs to be corrected The battery casing is fixed and clamped. The simplest battery clamp...

AI Technical Summary

Problems solved by technology

[0002] The lithium battery case is an important part of the lithium battery. During the production process of the lithium battery case, the covers at both ends still need to be welded after assembly to make them more firm and tight. In the past, manual welding was often used for welding the covers, and there are many deficiencies in manual welding. , such as high labor intensity, time-consuming and laborious, slow speed, low efficiency, uneven weld seam, welding sparks splashing and polluting the shell, affecting the appearance of beauty, etc., thus manual welding is gradually replaced by mechanical welding, no matter what welding method needs to be The battery casing is fixed and clamped. The simplest battery clamping method is to place the battery in a circular groove slightly larger than the outer diameter of the battery for fixing. Due to the inevitable errors in the production of the battery casing, its size will be different from the standard size. It must deviate, and it is difficult to put it into the circular groove of the fixture when the size is large, and the clamping force is not enough when it is placed in the circular groove when the size is small, it is easy to shake during ring welding and cause welding defects, and the method of using the open fixture is relatively troublesome in the clamping process. The material of the battery case is relatively soft, and the clamping force of the clamp is not easy to control. Excessive force will easily cause the battery case to dent

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