What is the difference between an efficient centerless cylindrical grinder and an ordinary cylindrical grinder?

Centerless cylindrical grinding It does not have a head frame and tailstock, but the workpiece and the guide wheel support the workpiece, grinding with a grinding wheel. Unintentional grinding method It is composed of three mechanisms: grinding wheel, adjusting wheel and workpiece support. The grinding wheel actually works as grinding. The adjusting wheel controls the rotation of the workpiece and the workpiece feed speed occurs. The workpiece holder is grinding. Hold the workpiece while cutting. The centerless cylindrical grinder has a high productivity and an unwieldy outer cylindrical grinding. It does not have a headstock and a tailstock. Instead, it supports the workpiece by a pallet and a guide wheel and grinds it with a grinding wheel. Unintentional grinding method It is composed of three mechanisms: grinding wheel, adjusting wheel and workpiece support. The grinding wheel actually works as grinding. The adjusting wheel controls the rotation of the workpiece and the workpiece feed speed occurs. The workpiece holder is grinding. Hold the workpiece while cutting. Centerless cylindrical grinders have higher productivity. Used for mass production and easy to automate.

普通 Ordinary cylindrical grinding

Ordinary cylindrical grinding As shown in the following figure, the workpiece is supported between the head frame of the grinding machine and the tip of the tailstock by using the top holes at both ends of the workpiece. During grinding, the workpiece rotates under the rotation of the spindle, and the grinding wheel performs transverse feeding.

▌ Centerless cylindrical grinding

Centerless cylindrical grinding It does not have a head frame and tailstock, but the workpiece and the guide wheel support the workpiece, grinding with a grinding wheel. Unintentional grinding method It is composed of three mechanisms: grinding wheel, adjusting wheel and workpiece support. The grinding wheel actually works as grinding. The adjusting wheel controls the rotation of the workpiece and the workpiece feed speed occurs. The workpiece holder is grinding. Hold the workpiece while cutting. Centerless cylindrical grinders have higher productivity. Used for mass production and easy to automate.

特点 Characteristics of centerless cylindrical grinding compared to ordinary cylindrical grinding

1. Continuous processing, no need to retract the knife, clamping the workpiece and other short time, high productivity.

2. The bracket and guide wheel positioning mechanism is better than the ordinary cylindrical grinder, the top center, the center frame mechanism to support rigidity, the cutting amount can be larger, and is conducive to the processing of slender shaft type workpieces, easy to achieve high-speed grinding and strong grinding.

3. The centerless cylindrical grinding machine workpiece is positioned on the positioning mechanism by the outer circle. The grinding amount is the margin on the workpiece diameter. Therefore, the wear of the grinding wheel, the compensation of the feeding mechanism and the repeated positioning accuracy of the cutting mechanism error on the diameter of the part. The impact is only half that of an ordinary cylindrical grinder. It does not require a center hole, and it is easy to automate the loading and unloading in advance.

4. Wide grinding wheel centerless grinding machine through the type of mechanism, can increase the amount of processing each time, in the cut into the grinding can be complex shape surface grinding or grinding wheel grinding, high productivity, wide application.

5. Centerless cylindrical grinders have no mechanism for ensuring the relative positional accuracy (coaxiality, verticality, etc.) of grinding surfaces and non-abrasive surfaces, and grinding the circumferentially intermittent outer surfaces is poor.

6. It is easy to produce an odd number of secondary roundness on the ground surface. If it is larger, it often causes the illusion that the measurement size is smaller than the maximum physical size, which affects the assembly quality and work performance.

7. The adjustment of the machine tool is complicated and time-consuming. Each replacement of a different diameter workpiece requires adjustment of the bracket height, distance and related process parameters. Therefore, it is difficult to adjust the technology and it is not suitable for small batches and single pieces of production.

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