manufacture/quality_control_plan/views/qc_inspection_view.xml

<?xml version="1.0" encoding="utf-8"?>

<!-- Copyright 2019 Marcelo Frare (Ass. PNLUG - Gruppo Odoo <http://odoo.pnlug.it>)
     Copyright 2019 Stefano Consolaro (Ass. PNLUG - Gruppo Odoo <http://odoo.pnlug.it>)
     License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl) -->
     
<odoo>

    <!-- inherits inspection form view adding new fields plan_id, qty_checked 
            and disable total qty modification -->
    <record model="ir.ui.view" id="qc_inspection_qty_checked">
        <field name="name">qc.inspection.qty.checked</field>
        <field name="model">qc.inspection</field>
        <field name="inherit_id" ref="quality_control.qc_inspection_form_view"/>
        <field name="arch" type="xml">
            <field name="qty" position="attributes">
                <attribute name="readonly">1</attribute>
                <attribute name="string">Total quantity</attribute>
            </field>
            <field name="qty" position="after">
                <field name="plan_id" readonly="1"/>
                <field name="qty_checked" readonly="1"/>
            </field>
            <field name="success" position="after">
                    <button name="create_nonconformity" string="Add Nonconformity" 
                            type="object" class="btn-danger"/>
            </field>
            <notebook position="inside">
                <page string="Nonconformity">
                    <field name="inspection_ids"/>
                </page>
            </notebook>
        </field>
    </record>
</odoo>