How can i submit my form data in custom table magento2

How do you programmatically assign simple product to configurable? What I tried: $configurableProduct = $this->objectManager->create(‘MagentoConfigurableProductModelProductTypeConfigurable’); $configurableProduct->setUsedProductAttributes($product, array($product_jsa_type_attribute_id)); $product->setNewVariationsAttributeSetId(4); $product->setAssociatedProductIds(array( $productObj->getIdBySku($ticketProduct[‘product_id’]), $productObj->getIdBySku($couponProduct[‘product_id’]), ));