Leveling device

Abstract

The invention discloses a leveling device which can be used for leveling a welding spot of an ultrasonic spot welder. The leveling device comprises a slider-crank mechanism and an indexing mechanism,wherein the slider-crank mechanism comprises a rack, a slider, a connecting rod and a sleeve acting as a crank, reciprocating movement of the slider drives the sleeve to do rotary swing in a certain angle, the sleeve is used for fixing a component needing to be leveled, the indexing mechanism comprises a lead screw and nut mechanism and a worm and gear mechanism, the lead screw and nut mechanism comprises a lead screw fixedly connected with the slider and a nut mounted on the lead screw, the worm and gear mechanism is used for driving the nut to rotate, and the slider is driven to move throughthe lead screw. When the scheme of the leveling device is applied to ultrasonic welding, rapid adjustment of the parallelism of a welding head and the welding spot relative to a bottom die can be achieved, the machine adjusting time during replacement of the welding head is shortened, the parallelism requirement of the welding head and the welding spot relative to the bottom die is met, and higher efficiency and higher welding quality of ultrasonic welding are achieved.

Description

technical field [0001] The invention relates to the technical field of ultrasonic welding, in particular to a leveling device which can be used for leveling welding points of ultrasonic spot welding machines. Background technique [0002] In recent years, the energy density of lithium batteries has been greatly improved, and electric vehicles have been greatly developed, but the economy and practicability are still unable to compete with existing fuel vehicles, and the requirement for increasing the energy density of lithium batteries is still urgent. There are two main ways to increase the energy density of lithium batteries, one is lithium battery materials, and the other is battery structure. [0003] To optimize the battery structure and increase the energy density, changing the thickness of the matrix material is one of the ways. Under the same volume, a thinner base material means more core winding layers, and more core winding layers lead to an increase in the number...

AI Technical Summary

Problems solved by technology

[0004] However, the existing ultrasonic welding solder joint leveling is manual leveling, which is not accurate enough and difficult to adapt to the development trend of the industry. The existing defects mainly include: 1. The manual adjustment method of solder joint indentation test is time-consuming and cannot adapt to consumable products. Requirements for quick change; 2. The manual adjustment method has limited leveling effect, and the parallelism between the bottom mold and the welding head is difficult to meet customer requirements

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