GRINDER (GRINDER, GRINDING MACHINE) is a machine tool that uses abrasives to grind the surface of the workpiece.Most grinding machines use high -speed rotating wheels for grinding processing. A few are processed by using other abrasives and free abrasives such as oil stones, sasal belts, such as polished machines, super -fine machining machine tools, grinding grinders, grinders and polishing, and polishing.Planet and other.So what are the classification of grinding beds?What are the characteristics of grinding beds?
Classification of grinding beds
With the increase of the number of high -precision, high -hardness mechanical parts, and the development of precision casting and precision forging processes, the performance, varieties and yield of grinding machines are constantly increasing and increasing.
(1) Forex grinding bed: It is a normal -type base series, which is mainly used for grinding beds with cylindrical and conical outer surfaces.
(2) Inner round grinding bed: It is a normal -type base series, which is mainly used for grinding beds with cylindrical and conical internal surfaces.In addition, there is a grinding bed with both inside and outside.
(3) Coordinate grinding bed: Inner round grinding bed with precision coordinate positioning device.
(4) Unintentional grinding bed: The workpiece is held in unintentional clamping. It is generally supported between the guide wheel and the bracket, and the guide wheel drives the workpiece.For example, bearing axis branches, etc.
(5) Plane grinding bed: The grinding bed mainly used for the plane of the workers.
a. Hand -shaking grinding beds are suitable for processing of smaller size and higher precision workpieces, and can process various alien workpieces including curved surface, plane, grooves, etc.
b. Large water mills are suitable for the processing of larger workpieces. The processing accuracy is not high, which is different from the hand -shaking grinding bed.
(6) Salmon grinding bed: Use fast -moving grinding grinding grinding beds.
(7) Holiday machine: It is mainly used for processing various cylindrical holes (including light holes, axis or radial intermittent surface holes, pores, blind holes, and multi -step holes).The residue thread hole.
(8) grinding machine: The grinding bed on the plane or cylindrical shape of the grinding workpiece.
(9) Guideline grinding machine: The grinding machine mainly used for the grinding machine tablet surface.
(10) Tool grinder: grinding machine for grinding tools.
(11) Multi -grinding beds: used for grinding cylindrical, conical, outer surfaces, or planes, and grinding machines that can be grinded with a random device and attachment.
(12) Special grinding machine: engaged in special machine tools for grinding certain types of parts.According to its processing objects, it can be divided into: flower axis grinding bed, crankshaft grinding bed, cam mill, gear grinding machine, thread grinding machine, curve grinding machine, etc.
(13) Facial grinding machine: grinding bed for grinding gear end surface.
Modern characteristics requirements
According to the moving characteristics and process requirements of the grinding bed, there are the following requirements for power drag and control:
1. The rotation movement of the sand wheel generally does not require speed adjustment. It can be dragged by a three -phase asynchronous motor, and only one -way rotation is required.When the capacity is large, the Y-triangular antihypertensive can be started.
2. In order to ensure the processing accuracy and make it run smoothly, to ensure that the workbench has a small inertia without impact when the workbench is changed. Therefore, hydraulic transmission is used to achieve the reciprocating motion of the workbench and the horizontal feed of the sand wheel box.
Grinding bed safety protection
The grinding processing application is widely used, and it is one of the main methods of precision processing of machine parts.However, due to the high speed of the grinding grinding wheel, the sand wheels are relatively hard, brittle, and cannot withstand heavy impacts. Occasionally, the operation is improper, and the crushing wheel will cause very serious consequences.Therefore, the safety technical work of grinding processing is particularly important. Reliable safety protection devices must be adopted, and the operation must be concentrated to ensure that it is foolproof.
In addition, the fine sand dandruff and metal dandruff splashed on the workers of the sand wheels during grinding will hurt the eyes of the workers. If the workers inhale a lot of inhalation of this dust, it is harmful to the body and should also take appropriate protection measures.Pay attention to some safety technical issues in the following safety technical problems during grinding processing.Before driving, we should carefully conduct a comprehensive inspection of the machine tool, including checking the cards such as manipulating mechanisms, electrical equipment and magnetic suction cups.After the inspection, the lubrication is lubricated, and the test drive is tested to confirm that everything is good before it can be used.When installing the card workpiece, pay attention to the positive and tight card. During the grinding process, the workpiece loosening will cause the workpiece to fly out of serious consequences such as wounding or crushing the wheel.
When starting to work, apply hand -tuned ways to make the wheel slower closer to the workpiece. The amount of feed is small. Do not force too much force to prevent colliding with the wheel.When moving with iron control workbench to move, it is necessary to accurately adjust according to the grinding length of the workpiece, and tighten the iron gear.When replacing the sand wheel, you must first check the appearance. Whether there are trauma, and then hit with a wooden hammer or a wooden stick, requiring the sound to be crisp and no crack.
When installing the sand wheel, install it in accordance with the prescribed method and requirements. After the static and balanced debugging, the installation is installed.Workers should wear protective glasses in their work, and they should be carried out balanced when trimming the sand wheel to prevent impact.Measurement of workpieces, adjustment or wiping machine tools must be performed after stopping.When using a magnetic suction cup, wipe the disk and workpiece to clean, tighten, and suck it. If necessary, you can add iron to prevent the workpiece from shift or fly out.Pay attention to install the sand wheel protective cover or machine tool baffle.

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