Okamoto grinding machine

Types of Okamoto Grinding Machines

Okamoto grinding machines are the backbone of any metalworking or industrial facility. They come in various models, each suited for a particular kind of job.

• Surface Grinder Machine

  The surface grinder Okamoto machine is one of the most popular grinding machines. It works by grinding flat surfaces, bevels, steps, grooves, and the like. The machine uses the up-cut and down-cut method of milling to achieve the desired results. Surface grinders use either metal or ceramic grinding wheels. Some of the grinders achieve flatness and precision to millionths of inches with little to no handwork.

• Cylindrical Grinder Machine

  The cylindrical grinder machine does not look like a typical machine. That is because it is designed for grinding integrated features in the part of the material being worked on. The Okamoto cylindrical grinding machine can work with various materials to achieve high-precision parts. The integrated feature of the grinder machine means there is no need for further processing of the already worked-on material. This can help to reduce production time.

• Automatic Surface Grinders

  The automatic surface grinder Okamoto machine works just like any other automatic machine - automatically. The machine does not require manual cranking. It comes with an automatic table feed in both horizontal and vertical directions, making set-up time significantly less than those that require manual operation. The moving parts of the grinder machine are smooth and quiet - another feature setting it apart from manual grinders.

• Universal Surface Grinders

  A universal surface grinder machine works like a standard surface grinder but with more capabilities. The universal grinder has additional features, such as being able to grind complex parts. The workpiece is grounded by a rotating disk and then dried using a hot-air flow. In addition to flat surfaces, the universal grinding machine can also be used to work on angular, irregular, and contoured surfaces. Further, it can achieve high-precision finishes.

Specifications and Maintenance of Okamoto Grinding Machines

The specifications of Okamoto grinding machines vary depending on the types and models.

• Machine Sizes: The sizes of the grinding machines range from the compact bench-top units to large industrial-scale machines. The larger-sized machines have bed lengths of approximately 2,000-4,500 mm. Machine size affects the installation space and the scale of the workpieces that can be processed.
• Grinding Precision: Precision refers to the minimum size change that can be detected by the grinding machine and represents the ability of the machine to process workpieces to exact dimensions. For example, the precision of the Okamoto surface grinding machine can reach micrometer level, which can ensure that the surface roughness of the processed workpiece is at least Ra 0.01. Such high-precision processing is essential in fields requiring strict control of workpiece size and surface finish, such as aerospace and electronics.
• Grinding Capacity: The grinding capacity of different machines indicates the maximum size and weight of workpieces that can be ground. For instance, Okamoto's PSGA-124Cih surface grinder has a maximum grinding length of 1,200 mm, and its grinding width and height are 1,000 mm and 630 mm, respectively. The machine also has a work-holding apparatus, an electromagnetic workpiece holding device, a vertical spindle motor, and a V-shaped grinding wheel.
• Grinding Methods: Different grinding methods are available, such as surface grinding, external grinding, internal grinding, centerless grinding, and cylindrical grinding. Some machines may have two or more grinding methods, which provides versatility for grinding needs.
• Automation: Some grinding machines may adopt automatic functions, such as numerical control (NC)/computer numerical control (CNC) and robotic arms. For example, Okamoto laser grinding equipment is FDA-approved for the use of robots in food processing to reduce the transmission of viruses in human interactions. This not only improves the efficiency of the machine but also yields more precise and consistent processing results. Machines with automation and computerized control can meet the requirements of a fast-paced industry for higher production volumes and faster processing speeds. They can also meet the need for more complex and precise machining tasks.

Understanding the characteristics and specifications of various grinding machines facilitates selection and utilization according to particular needs and applications. In view of this, appropriate care and maintenance of the machines can solicit more extended use, more excellent durability, and more reliable performance; thus, productivity, efficiency, and quality can also be improved. Therefore, it is imperative to take care of these machines, which in turn, will take care of the product being ground.

• Regular inspection: It is imperative to regularly inspect the machine to ensure that all fasteners and connections are intact and to prevent loosening and other faulty phenomena. In addition, it is also important to pay attention to the working conditions and environment of the machines. The environment should be dry and clean, and it should be kept away from moisture, dust, etc. Furthermore, the temperature and humidity should be controlled.
• Lubrication: The main moving parts of the machine should have enough lubricating oil to reduce friction loss and ensure smooth operation.
• Safety maintenance: Safety guards and electrical parts of the machine need to be ensured to be maintained for well-ordered use and better safety of the machine user as well.
• Regular training of operators: Regular training of operators is also important, so they need to know how to operate the grinding machines correctly and have the overall knowledge of the features and functions of the machines.

Scenarios of the Okamoto grinding machine

The wide utilization scope of the Okamoto machine shows its significance in many industries and applications. Besides the above-mentioned metal-cutting capacities, there are other specific scenarios where precisely-ground surfaces are vital for mechanical and functional purposes.

• Aerospace and aviation:

  Okamoto surface grinders are extensively used in the aerospace industry to ensure the flawless surface finish of critical aerospace components. These components include turbine blades, landing gears, engine casings, and structural elements. The precise surface grinding performed by Okamoto grinders helps guarantee the structural integrity, lightweight design, and optimal performance of aerospace parts, contributing to the safety and efficiency of aircraft and spacecraft.

• Mold and die manufacturing:

  In the mold and die manufacturing sector, surface grinders play a vital role in achieving the precision surface finishes required for molds and dies. Okamoto grinders are employed to grind injection molds, stamping dies, plastic molds, and casting molds. The use of surface grinders ensures that molds and dies have accurate dimensions, smooth surfaces, and optimal reproducing capabilities, enabling the efficient production of complex molded and shaped parts.

• Tool and die making:

  Surface grinders are indispensable in the tool and die-making industry for producing high-precision tools and dies used in various manufacturing processes. Okamoto grinders are used to grind jigs, fixtures, cutting tools, punches, and specialized tools and dies. The precision grinding achieved by surface grinders ensures the accuracy, reliability, and longevity of tools and dies, facilitating efficient and precise machining operations.

• Optical components:

  Surface grinders equipped with specialized attachments or variations are employed in the optical industry to manufacture optical components with ultra-precise surface finishes. These components include lenses, prisms, mirrors, and waveguides. The precision surface grinding provided by these dedicated grinders enables the production of optical components that meet stringent quality standards, ensuring optimal light transmission, reflection, refraction, and imaging performance.

• Cryogenic components:

  Okamoto surface grinders also play a crucial role in the production of cryogenic components used in low-temperature applications. These components are essential in industries such as superconductivity, liquid gas storage, and cryogenic cooling. Surface grinders are used to achieve the precise surface finishes required for cryogenic valves, pumps, heat exchangers, and insulation systems, enabling efficient cryogenic fluid handling and storage.

How to Choose Okamoto Grinding Machines

Consider the following factors before purchasing an Okamoto surface grinding machine or any other brand of surface grinder:

• Grinding needs: Determine what surface grinder going need based on sorting needs, the kind of work produced, and the level of precision requirements. Some machines are better suited for larger, rougher jobs, while others are designed for higher-precision tasks.
• Machine Type: Familiarize oneself with various surface grinders. Consider what kind of surface grinder would be used—that is, whether it will be vertical or horizontal (the orientation of the arbor and saw blades) or if an external surface grinder will be used, which may even be attached to a power drill.
• Grinding Wheel: Different surface grinders use different types and sizes of grinding wheels. Ensure the surface grinder one decides on is compatible with the kind of grinding wheels available.
• Power Source: Surface grinders run on different voltages and phases (single or three-phase). Make sure the power requirements of the surface grinder are compatible with the available power supply.
• Machine Size and Weight: Surface grinders come in various sizes to handle different workpieces. Choose a surface grinder that can handle the size and weight of the workpieces that will be ground.
• Quality and Brand: Choose an equipment manufacturer with a proven track record of quality and reliability. Research brands and models to find those recommended by experts and users.

Okamoto grinding machine Q&A

Q1. What is an Okamoto grinding machine?

A1. An Okamoto grinding machine is a precision machine tool used for grinding metal surfaces to achieve a high level of flatness and smoothness. It is manufactured by the Okamoto Machine Tool Works, Ltd., a leading manufacturer of grinding machines.

Q2. What are the features of Okamoto grinding machines?

A2. Okamoto grinders are known for features like automatic and manual controls, heavy cast construction, and electronic digital readouts on the axis. Some models have fully programmable, computerized controls for multiple-step grinding operations with unattended reversal of the workpiece at any desired interval.

Q3. Why are grinding machines important?

A3. Precision grinding machines, like those manufactured by Okamoto, play a crucial role in the final stage of metalworking. They provide exceptional flatness and smoothness to surfaces, which is essential for parts that need to fit together precisely. The high level of accuracy and finish achieved by grinding machines is not possible with milling or cutting machines.

Q4. Do grinding machines have different types?

A4. Yes, there are surface, internal, external, universal, centerless, and clutch grinding machines. The choice of a suitable type depends on the workpiece's shape and the required precision.