RU2004397C1

RU2004397C1 - Method of grinding

Info

Publication number: RU2004397C1
Authority: RU
Inventors: Николай Федорович Спицин
Original assignee: Spitsin Nikolaj F
Priority date: 1990-04-16
Filing date: 1990-04-16
Publication date: 1993-12-15

Description

Изобретение относитс к машиностроению , в частности к обработке металлов резанием .The invention relates to mechanical engineering, in particular to the processing of metals by cutting.

Целью изобретени вл етс .повышение точности обработки.The aim of the invention is to improve the accuracy of processing.

Это достигаетс за счет уменьшени динамических нагрузок на шлифовальный круг, перед подачей шлифовального круга на врезание шлифовальную бабку перемещают в направлении перпендикул рном оси обрабатываемого издели на величину R-r -L R-r+k от оси издели ,This is achieved by reducing the dynamic loads on the grinding wheel; before applying the grinding wheel for cutting, the grinding head is moved in the direction perpendicular to the axis of the workpiece by R-r -L R-r + k from the axis of the workpiece

где R - радиус обрабатываемого издели ;where R is the radius of the workpiece;

г- радиус шлифовального круга;g is the radius of the grinding wheel;

k - величина заходной фаски обрабатываемого издели (заходна фаска может быть частью монтажной фаски, если последн есть). После чего шлифовальный круг ввод т в контакт с обрабатываемой поверхностью перемеща его по оси издели , причем инструмент беретс тоже с заходной фаской. Конкретно способ осуществл етс следующим образом: перед перемещением стола 1 влево, приводом известной конструкции (не показан на чертеже), круг 2, имеющий заходную фаску 3, смещаетс по радиусу относительно оси обрабатываемого издели на величину L. Дл данного случа k is the value of the chamfer of the workpiece (the chamfer may be part of the chamfer, if there is one). After that, the grinding wheel is brought into contact with the machined surface by moving it along the axis of the product, and the tool is also taken with a chamfer. Specifically, the method is carried out as follows: before moving the table 1 to the left, with a drive of a known design (not shown in the drawing), a circle 2 having an entry chamfer 3 is shifted by the value L by the radius relative to the axis of the workpiece. For this case

Claims

SUMMARY OF THE INVENTION METHOD OF GRINDING products with a chamfer, including the movement of the grinding head with the grinding wheel for cutting and along the axis of the workpiece, characterized in that, in order to increase the accuracy of processing by reducing the dynamic loads on the grinding wheel, feed the grinding wheel for cutting grinding head is moved in the direction perpendicular to rnomosi

0

taken: R 60 mm; g 25 mm; k 2 mm, removable allowance on the side of 0.1 mm. Hence, L 60 - 25 + 0.1 35.1 mm. Therefore, 60-25 35.1 60 - 25 +

2. In each case, from a dimension of the chamfer 4 of 2 mm, only 0.1 mm is used, i.e. the amount of allowance (preliminary). Then the table 1 is shifted to the left, as a result of which the circle 2 under the action of the contact of the chamfer 3 with the entry chamfer 4 is shifted to the center of the workpiece 5, causing the grinding headstock 6 to move with the motor 7 and the caliper 8 in the guides 9 to overcome the resistance of the power link 5 10. for example springs. When the reciprocating movement of the table 1 in the direction of arrow A under the action of the spring 10, the allowance is removed equal to 0.1 mm per side from the inner surface until the support 8 rests against the stop 11. After this, by turning the stop 11, the hole of the article is ground to the final size at the command of a sensor of known design (not shown in the drawing). Then, the grinding wheel is pulled out of the hole in the usual manner and the grinding process is completed.

0

5

(56) Copyright certificate of the USSR 30 No. 831545, cl. 24 V 1/00, 1979.

35

40

the workpiece, and the amount of displacement L is determined from the condition

R - g L R - g, where R is the radius of the workpiece;

g is the radius of the grinding wheel;

k is the value of the chamfer of the workpiece,

whereupon the grinding wheel is brought into contact with the surface to be machined, moving it along the axis of the product, whereby a tool with a chamfer is taken.