Steps and Techniques for Processing Steps with a Surface Grinder

With the vigorous development of the mechanical processing industry, the surface grinder, as a key piece of equipment, has its processing accuracy and efficiency directly affecting the product quality. Especially in the processing of steps, accurately mastering the processing steps and techniques has become the key to improving production efficiency.

Steps for Processing Steps with a Surface Grinder

1.Preparatory Work in Advance: Firstly, conduct a comprehensive cleaning and deburring treatment on the workpiece to ensure that its surface is clean and flawless, laying a solid foundation for subsequent high-precision processing. At the same time, according to the material, size and processing requirements of the workpiece, accurately select the appropriate grinding wheel, and carry out a detailed debugging of the surface grinder, comprehensively checking the operation status of all components to ensure the stable operation of the equipment.
2.Workpiece Clamping: For workpieces with regular shapes, they can be conveniently clamped on the workbench with the help of an electromagnetic chuck; if the workpiece has a special shape, professional fixtures or multi-functional strong electromagnetic chucks (provided by the user) need to be used to ensure a firm clamping and prevent displacement and shaking during the processing.
3.Rough Grinding Operation: Start the surface grinder, accurately adjust the position of the grinding wheel and the workpiece, and start the rough grinding process. During rough grinding, the feed rate can be appropriately increased to efficiently remove most of the machining allowance, but the grinding depth must be strictly controlled to prevent the workpiece from deforming due to excessive grinding force.
4.Fine Grinding Process: After the rough grinding is completed, replace it with a fine-grit grinding wheel and start the fine grinding process. In the fine grinding stage, the feed rate and the grinding depth need to be significantly reduced. Through multiple reciprocating grinding operations, gradually approach and reach the dimensional accuracy and surface roughness required by the design.
5.Dimensional Inspection: Throughout the processing, frequently use precision measuring tools such as micrometers and calipers to detect the dimensions of the steps in real time to ensure that the processing accuracy meets the design standards. Once a dimensional deviation is found, immediately adjust the parameters of the grinder to ensure the processing quality.

Techniques for Processing Steps with a Surface Grinder
The steps can be ground from two directions, and the basis for choosing which surface to cut the steps from is the efficiency. As shown in the following figure, for the same part, when the direction is changed, the grinding efficiency is different.

Grinding steps for particularly long workpieces

When the grinding area of the workpiece is relatively large, a large amount of heat is generated during processing, and the workpiece is prone to deformation. Therefore, attention should be paid to the rough grinding stage. It is necessary to select the direction for cutting the steps. During the finishing process, it is advisable not to grind the side and the bottom simultaneously. Use a coarse grinding wheel to grind one surface horizontally, and then stand the grinding wheel up to grind the other surface. Try to avoid grinding with the side of the grinding wheel. Finally, replace it with a fine grinding wheel to clean up the corners.

Grinding steps for small workpieces
Small workpieces often have steps as thin as 0.1mm or even 0.05mm. For the grinding of such steps, in the case of non-precision machining, it can be processed arbitrarily. However, for precision parts, corner cleaning is a must. Generally, in the design, it will be specified that corner cleaning is required to make the radius (R) less than 0.03mm. No matter how small the step is, a straight section must be achieved, even if it is only a few thou. For general materials, using a 120K grinding wheel and cleaning the corner 3 to 5 times can usually meet the requirement. For materials with extremely high hardness, such as DC53, SKH-9 and other materials, it is more troublesome. In this case, a finer grinding wheel, such as a 360K grinding wheel, needs to be used for corner cleaning, and the number of cleaning times should be increased accordingly.

Steps with a Radius (R)
This situation is also very common. It should be noted that when doing the rough machining, a step should be created while leaving a position for the radius (R). When doing the finishing, just finish the shaping of the radius (R) and directly process it to the required position, as shown in the following figure.

Steps on Four Sides
For this type of workpiece, it is necessary to leave a certain technological platform on each surface. In some places, it is called a supporting foot. Otherwise, there will be no supporting points during the finishing process of grinding the steps, and there is a possibility of deformation. There is no need to leave too much for the technological platform. A thickness of 0.7 to 2mm is acceptable, which ensures that the workpiece will not be deformed when the technological platform is removed.

Shanghai ANTISHICNC Horizontal-spindle Rectangular Table Surface Grinding Machine M7150x20W

Description of the Surface Grinding Machine M7150x20W
The M7150x20W mainly relies on the periphery of the grinding wheel to carry out efficient grinding processing on various materials such as steel, cast iron, and non-ferrous metals. According to the differences in the workpiece materials and shapes, a variety of clamping and positioning methods can be flexibly selected. For conventional surface grinding, it can be clamped with an electromagnetic chuck or directly fixed on the worktable. For flat surfaces, right-angle surfaces, surfaces at any angle, cylindrical end surfaces, and other special shapes, high-precision grinding can be completed on a fixture or a multi-functional strong electromagnetic chuck (purchased by the user himself).

It has stable accuracy performance, excellent reliability, and outstanding accuracy retention. The structural design is scientific and reasonable, and it has sufficient static, dynamic, and thermal stiffness. Advanced technologies are adopted to ensure that all levels of the system have excellent dynamic quality. The selected system actuators have high precision, strong reliability, and fast response speed. It is easy to operate and maintain, and the appearance design is beautiful and generous.

Technical Parameters of the Surface Grinding Machine M7150x20W

The M7150×20W surface grinding machine integrates advanced technology, excellent performance, and convenient operation. It is the best choice for you to improve processing efficiency and quality. Whether you are dealing with routine processing tasks or facing the challenge of high-precision grinding of complex workpieces, it can perform outstandingly to solve your problems and help your enterprise stand out in the fierce market competition.

If you need a surface grinding machine for high-precision grinding, you are welcome to consult Shanghai ANTISHICNC. We have rich experience in the manufacturing and application of surface grinding machines and can provide you with professional technical support.

Keywords: Step Workpiece Surface Grinding Machine, Surface Grinding Machine for Large Stepped Workpieces, High-precision Surface Grinding Machine, Vertical Spindle Surface Grinding Machine, Horizontal-spindle Rectangular Table Surface Grinding Machine