Two spindle cnc lathe

Types of Two-Spindle CNC Lathes

Two-spindle CNC lathes enable working on two sides of a workpiece simultaneously, improving efficiency and productivity. The two-spindle CNC lathe comes in various types based on its design, control system, and functionality.

• Two Spindle CNC Lathe with Sliding Tables

  The two-spindle CNC lathe with sliding tables is a common type. It has two rotating spindles that slide back and forth to present the workpiece to the cutting tools. The spindle's linear motion enables the workpiece to be cut at different angles and positions, bringing great versatility for various machining tasks.

• Fixed-Position Spindles

  In a two-spindle fixed-position lathe, the spindles are permanently mounted, and the workpiece is rotated to reveal different portions for machining. This design simplifies operation and is suitable for machining cylindrical or disc-shaped workpieces with fixed geometric forms.

• Live Tooling Spindles

  The live-tooling-two spindle CNC lathe features a spindle that can perform milling operations in addition to rotating workpieces. This versatility reduces setup times and enhances production efficiency.

• Fanuc Controlled Two-Spindle CNC Lathe

  This type is controlled by a Fanuc numerical control system. The Fanuc control system has an easy-to-use human-computer interface and high-precision control functions that enable the lathe to realize automatic and high-precision machining processes.

• Hydraulic Drive Two-Spindle CNC Lathe

  The hydraulic drive two-spindle CNC lathe uses hydraulic systems for spindle drive and control. Hydraulic systems provide flexible drives and high torque, suitable for machining operations requiring great strength and versatility.

• Two-Spindle Vertical CNC Lathe

  On the contrary to conventional horizontal CNC lathes, which face the operator, the two-spindle vertical CNC lathe has two spindles positioned vertically. This design is suitable for machining large-diameter and short-length workpieces. It's also ideal for heavy-duty machining applications. It saves floor space because the lathe does not need extra lateral space for cutting operations.

• Two-Spindle Horizontal CNC Lathe

  In contrast, the two-spindle horizontal CNC lathe's two spindles are aligned horizontally. This type is suitable for machining long and slender workpieces. It is well-suited for high-precision and high-efficiency machining in industries such as aerospace and automotive that require great tolerances and complex geometric forms.

Specification and maintenance of two spindle CNC lathes

Specification

• Spindle configuration: The two-spindle CNC lathe machine has two spindles with a spindle nose that clamps workpieces of different sizes, shapes, and weights. The first spindle (main spindle) usually connects to the power transmission parts. That allows it to generate torque and rotate at various speeds. The second spindle, called the sub-spindle or secondary spindle, is used for additional holding and machining of workpieces.
• Controlling system: Modern CNC machines lathe use a numerical control system for automated machining. This controlling system usually works with two spindles, which is used to program complex parts and control spindles' speed and operation precisely.
• Machining Precision: The double-spindle CNC lathe has a high processing accuracy. Its processing accuracy may reach millimeters (more precisely, tenths, hundreds). Such precision means that the machined parts can be fitted together tightly, achieving ideal assembly effects. It also sets a standard for quality requirements for subsequent procedures.
• Materials Used: The primary materials for double spindle CNC lathes are often cast iron or steel. The parts are machined to ensure sufficient rigidity and stability to withstand the vibration and cutting forces generated during machining.

Maintenance

• Routine Inspection:It is necessary to check the fastening elements of the two-spindle CNC lathe. For example, check that the fastening elements like bolts and nuts on the machine tool bed, guide rails, and tips are not loose. Otherwise, they are in fatigue and out of place. Subsequently, they can be tightly fixed. Besides, the wear and tear of the parts in contact with each other needs to be checked periodically, along with their tightness.
• Cleaning and Lubrication: Clogged oil grooves and pipelines are also responsible for the wear and tear of machine parts. This highlights the significance of regularly cleaning and unclogging oil grooves and pipelines. One should also pay attention to the lubrication of machine parts. The lubricating effect is vital to reduce friction and wear.
• Precision Adjustment:Over time, the CNC lathe's machining precision may decline due to external factors such as temperature and humidity. To maintain the machine's processing accuracy, it is necessary to adjust the position, parallelism, and axis of the main and sub-spindles and the guiding rails.
• Control System Maintenance: The CNC control system is the core component responsible for controlling all functions of the two-spindle CNC lathe. Therefore, users need to clean the operator panel and monitor screen, pay attention to the system prompts and fault codes, analyze and solve problems in a timely manner, back up processing data and relevant parameters, and ensure the reliability and stability of the CNC control system.

Usage scenarios of two spindle CNC lathes

The two spindle CNC lathe machine has many usage scenarios. Industries that manufacture parts of different two spindles, such as gear boxes, internal engine units, lathes, and other machines, mostly use these machines.

Because of their great precision and ability to automate processes, CNC machines with two spindles are commonly found in large industries with high production demands, such as the automotive and aerospace industries. Here, materials like plastic, wood, and metal are easily cut into various shapes and sizes. For instance, in the auto industry, the CNC lathe machine can easily cut metal pipes into shapes that can be used as car parts. Further processing and refinishing require little manual supervision and can be done at the highest speeds only possible with an automated machine tool like the CNC.

Generally, if an industry or workshop manufactures cylindrical objects that require perfect symmetry and precise inner drill holes, it is very likely employing a twin-spindle CNC lathe. Some of the common fields that entail routine use of two spindle CNC lathe machines include the following:

• Auto parts manufacturing: CNC lathe machines help produce automotive components like shafts, spindles, bushings, and custom fittings precisely and quickly. Efficiency is paramount in this industry; thus, CNC machines of any kind are preferred because they can easily make exact copies of the same parts repeatedly without any margins of error.
• Aerospace industry: In the aerospace industry, precision is non-negotiable when making parts; therefore, CNC machines with two spindles are often employed to create lightweight, high-strength components like turbine shafts and transmission parts with perfect precision and minimal wastage of raw material.
• Medical device manufacturing: Medical instruments often require very precise components, especially those with tiny inner drill holes and thin walls. Instruments like catheter components, dental equipment, and surgical tools are all made using a CNC lathe machine.
• Electronics industry: The electronics industry makes use of twin-spindle CNC machines to produce housing, connectors, and casing for various telecom parts, mobile and computer electronics. Again, the highlight of the electronic component industry's requirements is precision and minimal wastage.
• Robotics and automation: Robotics machines require precision lathe parts to be fit together tightly, and again, CNC machines with two spindles might be able to achieve this desirable goal. Examples of areas where these robots are used include assembly lines in twins spindle CNC robotics at a manufacturing plant that might help assemble other robotics parts.
• Custom part production: Any industry that demands customized components and automated high-precision machining must employ a two-spindle CNC machine for optimum productivity and efficiency. Here, the CNC machine can easily create custom parts with complex geometries and tight tolerances quicker than manual methods.
• Oil and gas industry: CNC machines with two spindles are also utilized in the oil and gas industry to make pipe fittings and valves, etc. These industries also require a lathe machine to make exact copies of drill holes or to drill holes in very hard pipes.

How to choose two spindle CNC lathes

When purchasing a two spindle CNC turning lathe machine, it's important to consider the attributes that will ensure it meets the requirements of the intended application while providing the best ROI.

• Workpiece compatibility

  The nature of the workpiece to be fabricated, such as its material, shape, dimensions, weight, and any special features like the presence of a groove or particular tolerance requirements, must be considered. The CNC lathe's capabilities should align with these requirements to enable effective machining.

• Spindle and tooling system

  Evaluate the CNC lathe's spindles and tooling systems for their flexibility. Check if they can adapt to different workpieces by using changeable tools or quick-change systems. This ability is crucial when machining various workpieces that require different machining tools or techniques.

• Machining operations

  Consider the types of machining operations the CNC lathe can perform. Apart from the standard turning operation, some dual-spindle CNC lathes with live tools can carry out additional operations like drilling, tapping, and milling. If the intended machining tasks require these advanced operations, selecting a CNC lathe that offers them is essential for meeting production needs efficiently.

• Machine precision and accuracy

  Selecting a machine tool that can provide the precision and accuracy required for achieving desired product quality is indispensable. Sufficient rigidity and stability are also essential to maintain accuracy during machining operations.

• Automation and controls

  Consider the level of automation and control features of the CNC lathe. Look at its CNC system, user interface, and any additional automated functions such as tool changers or part feeders. An effective automation and control setup can enhance machining efficiency and simplify operation.

• Floor space and layout

  As a machining system's physical size may impact its integration within a production line, it is important to consider the available floor space. Furthermore, the layout of the machine, which affects its accessibility for setup, operation, and maintenance, should be taken into account.

• Indirect costs

  Indirect costs associated with the CNC lathe machine, such as tooling expenses, fixture requirements, and dedicated software for workpiece programming. These supplementary costs can significantly impact the overall budgeting for the machining system.

FaQs

Q1: What is the benefit of having two spindles on a CNC lathe machine?

A1: The main objective of a two-spindle CNC lathe is to retire or even reduce the use of manual lathes. Doing this alone could enhance production and make more chassis components and repeats feasible. Each spindle can hold a different workpiece and carry out separate operations simultaneously.

Q2: What materials can a CNC lathe machine work with?

A2: CNC lathe machines can work with various metals, including brass, steel, alloy steel, carbon steel, stainless steel, aluminum, titanium, and copper.

Q3: How to Control CNC Lathe Machine?

A3: The CNC control panel is an essential part of any CNC machine, including CNC lathes. Because it connects and links up electrical and mechanical parts, a conversation between human and machine is made possible. Through this device, an operator can program the lathe to carry out particular tasks with specified levels of accuracy.

Q4: What are the advantages of a 2 spindle CNC lathe?

A4: A two-spindle CNC lathe offers several benefits. It provides high-speed machining, reducing cycle times and increasing productivity. The ability to perform multiple operations simultaneously enhances efficiency. Two-spindle CNC lathes also accommodate various workpiece sizes and complex geometries, making them versatile for many applications. They enable uninterrupted production flow, minimizing downtime and streamlining manufacturing processes.