Assembly of a CNC vertical lathe involves multiple steps and components. The following are the assembly steps of a general CNC vertical lathe optical machine:

1. Machine tool base and support:
Install the machine base and secure it in place. Make sure the base is stable and firm and meets relevant installation requirements.
Install the support structure of the machine tool, such as columns and beams. Ensure support structures are installed and adjusted correctly according to machine tool design and specifications.

2. Installation of spindle and spindle box components:
Install the spindle box components, including the spindle box, spindle bearings, spindle motor, etc. According to the design of the machine tool, correctly install the spindle box assembly on the machine tool base and make necessary adjustments and calibrations.

3. Tool holder and tool installation:
Install the tool holder and tool support structure of a CNC vertical lathe. According to the design of the machine tool, install the tool holder in the appropriate position and make sure it is stable and adjustable.

4. Control system installation:
Install CNC system and control panel. Correctly connect and fix equipment such as CNC system modules and control panels according to the design and specifications of the CNC vertical lathe.

5. Electrical and hydraulic system installation:
Connect electrical and hydraulic systems. Including installing electrical boxes, cables, sensors, hydraulic pumps and other components, and ensuring that the connections are correct, firm and reliable.

6. Debugging and testing:
Carry out debugging and testing of machine tools. This includes checking the connections and functions of each system and making necessary adjustments and calibrations to ensure the normal operation of the entire machine tool.

Throughout the assembly process, the assembly instructions, technical information and installation requirements provided by the manufacturer need to be followed. Ensure that each component is installed, adjusted and secured correctly and that assembly work is performed in the recommended sequence. If needed, seek help and guidance from the manufacturer or experienced technicians.
It should be noted that the specific CNC vertical lathe assembly steps may vary depending on the machine tool model, specification and brand. Therefore, before assembly, it is best to refer to the relevant operation manual, installation guide and technical data to ensure the correct assembly sequence and correct operation process.