Cnc crank shaft grinder

Types of CNC crank shaft grinders

• Universal CNC crank shaft grinder

  A universal CNC crank shaft grinder is a versatile machine tool that can grind various types of crankshafts, both circular and non-circular. It is suitable for processing new products and repairing the crankshafts of existing engines. The machine is easy to operate, adjust, and maintain, making it an excellent choice for small production runs or crankshaft repair shops.

• Specialized CNC crank shaft grinder

  Unlike universal CNC grinders, specialized machines are designed to handle only one specific type of crankshaft. Specialized machines can achieve higher levels of precision and efficiency because they are tailored to particular crankshaft designs. However, they are more expensive and less flexible than universal CNC grinders.

• Roller drive CNC crankshaft grinders

  CNC crankshaft grinders with roller drives are used to centralize the crankshaft during the grinding process by means of a cradle equipped with bearings or rollers. This device allows for the free rotation of the crankshaft while simultaneously grinding the main and rod journals. The following functions are performed by roller drive crankshaft grinders: a direct drive that offers superior performance and reliability; eliminates belts and chains, leading to less maintenance and longer machine life; a breath of fresh air after years of being reconditioned by replacing the bearings with roller drives; and the design parameters and technology that have always been incorporated into the products.

• Multitask CNC crankshaft grinders

  A type of machine that can perform multiple tasks, such as grinding, drilling, and milling, in a single setup. This eliminates the need for many separate machines and helps to cut down on production time and boosts efficiency.

• Replacement part for CNC crankshaft grinder

  For any machine to work properly and last a long time, it will eventually need replacement parts. These are the components that wear out or break and need to be fixed to keep the machine running smoothly. Some common replacement parts for a CNC crankshaft grinder include bearings, blades, belts, and filters.

• Labor-saving products of CNC crankshaft grinder

  Automated tools and machinery have transformed the manufacturing sector by lowering costs and streamlining procedures. Crankshaft grinders that run on CNC technology are able to automatically perform more than one stage of the process without the need for regular human assistance.

• Robust products of CNC crankshaft grinder

  Durable products are typical of being able to last longer and withstand heavy use. Die-hard products are also designed with user-friendliness and performance in mind to provide excellent value and do not sacrifice quality.

Specification and Maintenance

The CNC machines specifications will vary considerably based on the maker, model, and intended use. A few key specifications are as follows:

• Crank Shaft Length: The length of the crankshaft that can be grounded by the machine. For example, some machines may handle crankshafts that are approximately 5000 mm long.
• Grinding Accuracy: The level of precision to which the machine can perform grinding, such as ±0.005 mm on the ground diameter of the crankshaft.
• Grinding Diameter: The range of diameters of crankshafts that the machine can grind, typically within a certain range, such as 20 mm to 300 mm.
• Power of Grinding Wheel Motor: The power of the motor that drives the grinding wheel, usually expressed in kilowatts (kW), indicates the machine's grinding capacity. Some models have a grinding motor power of around 10kW, depending on the model.
• Machine Weight: A heavy machine typically weighing around 8,000 kg, with some larger ones exceeding 18,000 kg. This will provide stability when grinding.

Machines like these need special maintenance procedures done at regular intervals to ensure they keep functioning well. Here's a breakdown of their maintenance schedule:

Daily Tasks

• Clean: Start by removing any leftover material or chips from the grinder. Then, use a soft brush to get rid of dust and finally, wipe the machine with a clean, dry cloth.
• Check Water Pump: Ensure the water pump is working properly to cool down the crankshaft while grinding. Look for any signs or issues that may affect its functioning.
• Lubrication: Regularly apply lubricant to all moving parts of the grinder as per the manufacturer's instructions.

Weekly tasks

• Detailed Cleaning: In addition to daily cleaning, conduct a thorough cleaning of the entire machine. Remove any remaining material from hard-to-reach areas using brushes and compressed air.
• Inspection: Check all parts of the machine to identify any wear, damage, or need for adjustment. Pay special attention to grinding wheels, bearings, drive belts, etc.

Every Month

• Oil Change: Replace lubricating oil for crankshafts and other parts according to the oil replacement cycle required by the manufacturer. This ensures good lubrication and protection.
• Replacement of Grinding Wheel: Regularly inspect the state of the grinding wheel and replace it if it's excessively worn out, damaged, or out of round. Ensure that the quality and precision of the work remain unaffected by the grinding wheel condition.

For other maintenance on the machine, please refer to the manufacturer's manual for instructions on further maintenance such as adjustments, repairs, replacements, or other tasks. Be sure to follow the instructions of the specific CNC crank shaft grinder model to maintain its proper function and ensure a prolonged service life.

Application Scenarios

The applications for CNC crankshaft grinders are varied. They are primarily used in the automotive industry to manufacture and grind new crankshafts. However, there are also several applications in the machinery repair and parts replacement sector.

Here are some typical usage scenarios for CNC crankshaft grinders:

• Manufacturing New Crankshafts: The CNC grinder is extensively used in the machinery and automotive industries to manufacture new crankshafts for engines. The high-precision machine ensures that the new crankshafts have a perfect balance, leading to efficient engine performance.
• Replacing Worn-Out Crankshafts: Therefore, the CNC machine plays an essential role in the automotive industry by allowing for the replacement of only the worn-out parts of a gearbox or engine, instead of the entire machine.
• Repairing Crankshafts: A CNC crankshaft grinder is also used to repair old or damaged crankshafts by grinding them. This helps companies save on costs as they do not have to buy new parts to replace older, well-used ones.
• Difficult Angles: CNC machines are designed to grind difficult angles and curves on a crankshaft. Such hard-to-replicate shapes are usually found on luxury vehicles or high-performance sports equipment.
• Custom-Made Crankshafts: Some manufacturers may require custom-made crankshafts for their vehicles or machinery. CNC machines can create one of these models based on specific requirements provided by the manufacturer.

How to choose a CNC crank shaft grinder

When investing in a large-scale CNC crank shaft machine, one should consider the following:

• Capacity: It must have the ability to handle a variety of crankshafts. The machine's capacity is determined by factors such as weight and length. Make sure it has an adequate working envelope and a robust construction.
• Precision: The primary selling point of a CNC machine is its ability to achieve higher levels of precision than non-CNC machines. Choose a machine that offers the highest possible accuracy and repeatability.
• Ease of Use: Select a device that is simple to use and includes an intuitive interface, straightforward operation, and efficient setup features. A machine that can be operated with minimal training and easily fitted with automated tools will reduce costs further.
• Control System: The machine's durability is impacted by its control system. Look for a control system with a user-friendly interface and advanced features like simulation, tool path programming, and remote access for monitoring and diagnostics.
• Software Compatibility: Choose a machine that can be programmed using widely used CNC software or comes with its own software suite for easier integration into your production process.
• Tooling Options: Automated tooling options will help reduce costs and improve efficiency. Select a machine that includes quick-change tools and fixtures or has space for additional tooling as production needs grow.
• Reliability: A crankshaft grinder machine will be more costly than one that is high-volume, so do the research and select a brand that has a proven track record for reliability in its machines.
• Budget: These machines will vary widely in price. Determine what is suited to one's company needs and weighing the costs against potential future earnings is essential. This includes considering the possible return on investment (ROI) from improved production efficiency and quality.

Q&A

Q: What types of materials can a CNC crankshaft grinder work with?

A: Generally, CNC crankshaft grinders machine cast iron, forged steel, and aluminum alloy. However, the compatibility with specific materials depends on the given machine's design, construction, and specifications.

Q: What is the maximum diameter of a crankshaft that a CNC grinder can handle?

A: The maximum diameter of a crankshaft that a CNC grinder can handle varies depending on the machine model. Generally, it ranges from 200 mm to 800 mm.

Q: Can a CNC crankshaft grinder perform multiple operations?

A: Yes! Some advanced CNC crankshaft grinders can perform several tasks, such as grinding, cutting, and milling, changing the attachment or adjusting the setup.

Q: What is the degree of automation in a CNC crankshaft grinder?

A: The level of automation in a CNC grinder varies by model. Some might require crash stop manual loading and unloading of the parts, while others have automated part fixturing and loading.

Q: How much power does a CNC crankshaft grinder use?

A: The power consumption of a CNC grinder can change depending on the machine's size, capability, and specifications. Normally, it ranges from 3 kw to 15 kw.