For the final processing of different kinds of blanks used special equipment — machine grinding metal. Varieties of units of this type, there are several. As a working tool most often they use special grinding wheels.
At present, the enterprises uses the following types of grinding machines in metal:
Internal grinding. Can be used for cross-cutting of workpieces from the inside and at the ends.
Cylindrical Grinding. Machines of this type are mainly used for end milling of cylindrical and conical shapes.
Surface grinding. This is one of the most common types of equipment. Used machines of this kind to perform such an operation as grinding flat (plain surfaces).
Honing. On these machines produce small withdrawal allowances on the pieces (0,04-0,08 mm).
Bestinternetcasino. This kind of equipment is mainly used in large factories. Designed machines of this type for the treatment of external surfaces of workpieces.
Processing products in such equipment as the grinding machine on metal, can be produced using powders and pastes, sticks, skins or segments. However, most often, to give metal surface a smooth appearance are special abrasive wheels.
The Equipment of this type can be used both in small batch and mass production. Dimensions, weight, performance, power, and snap-it also has a different. The construction of the units of this type, like any other grinding machines for metal, includes the following elements:
A frame on which are mounted all of the nodes;
A sturdy table under the workpiece;
Spindle
The front of Baku;
Flywheel, etc.
The Main distinguishing feature of the design of equipment such as the grinding machine on metal, intended for processing of workpieces from the inside, is considered to be stationary headstock, attached to the frame. She moves the reciprocating motion of the table. The dimensions of the spindles in such machines depends on the diameter of the working instrument.
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Machines for metal of this type have a rotatable table top fixed to the bottom. It is located in front of the bed. When processing the conical parts of the lower turn table at a certain desired angle and fixed in this position with special clamps. Behind the frame on cylindrical grinding machines located on the platform for the headstock.
Machines for metal of this type can be issued:
With horizontal spindle, cross slide and rectangular table;
With the General purpose table and horizontal spindle;
With the vertical spindle and sliding table;
With a table of continuous operation;
A single column and two-column longitudinal-grinding;
Bilateral tortellini with horizontal or vertical spindle.
In tool production is often used the first kind of machines (rectangular table). Their design features include high-mounted rolling bearings spindle, the caliper with the rigid guide and provided with various devices. Technologically, the capabilities of these machines really wide.
The grinding metal of this type is able to provide the highest quality machining. In fact, these units represent a more advanced and productive variety of cylindrical models. Most often they are used when creating the production of automatic lines, as if necessary, they can be equipped with any types of boot devices and active control devices of the size of blanks.
Such equipment as machine centerless grinding can be performed by the inner and outer processing of metal products. However, the latter operation is performed with their use is rare. However, this is the most perfect of all aggregates used for grinding steel, cast iron, alloys, etc.
Using aggregates of this type is the final sanding. Honing machines are manufactured for interior or exterior surfaces, vertical or horizontal arrangement of one or more spindles. The grandmother of these machines mounted on guide columns. On the fixed spindle of the honing head. Since the processing details for assemblies of this kind should be made with maximum precision, in their design includes different kinds of active control systems based on non-contact or contact measurement techniques.
The Cost of equipment of this type depends on its capacity,performance and dimensions. Also the price of the machines may vary depending on the species. So, small surface grinding models can cost in the range of 300-400 thousand rubles. For professional high-performance model of this type will have to pay about 2 million rubles. Small cylindrical grinding machines cost in the region of 60-300 thousand rubles. The price of overall high-performance equipment of this type is 400-1500 rubles. Bestsentrovoe equipment depending on performance can be purchased for 300-2000 thousand rubles.
This kind of abrasive working tools used in the machines more often. Choose them on the basis mainly of to perform what type of work they are expected to apply. The type of range depends on the machine. For example:
For grinding of aggregates typically used simple circles of a straight profile.
For equipment such as machine centerless grinding often use circles straight profile with a unilateral recess.
For flat or face grinding can be used including circular, standard, cylindrical or conical rounds.
For sharpening usually use the disc tools.
For internal processing end-to-end products use selfgrowth.
Most Often, the grinding of metal is manufactured using very durable corundum circles on organic or ceramic ligaments. In any case, abrasive working tool of this type must meet the following requirements:
To withstand high loads from centrifugal forces;
The production of workpieces with the least degree of roughness;
To have a high Flexural strength in dry and in wet condition;
To remove the maximum amount of chips per time unit.
Most Often are used in the production circles with the grain of aluminum oxide. They can be applied for processing iron, steel, iron and even different kinds of alloys. For grinding very hard materials use the circles with the grain of the mixed type — from oxides of aluminium and zirconium. Soft metals (copper, brass) should be treated with the use of circles covered with aluminum oxide and silicon carbide. Tools with a large grain for grinding do not apply. The best results in terms of surface smoothness can only be achieved using small circles.
As you can see, modern grinding equipment can have a different design and being designed to handle parts of any shape, both inside and outside. Used units of this type and for small, middle and large enterprises. Their productivity and quality of machining depend on including the correct choice of abrasive working tools, of which there are many.
Article in other languages:
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PL: https://tostpost.com/pl/biznes/41919-maszyna-szlifierska-do-metalu-ciernice-do-maszyn.html
PT: https://tostpost.com/pt/neg-cios/41544-rectificadora-de-metal-m-s-para-m-quinas-ferramenta.html
Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."
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