SU901034A1

SU901034A1 - One-way hone

Info

Publication number: SU901034A1
Application number: SU802900390A
Authority: SU
Inventors: Петр Иванович Ящерицын; Ильяс Хусаинович Шарафеев; Анатолий Владимирович Кусяк; Сергей Владимирович Логинов; Александр Иванович Фасевич
Original assignee: Институт проблем надежности и долговечности машин АН БССР
Priority date: 1980-03-28
Filing date: 1980-03-28
Publication date: 1982-01-30

Description

II

Изобретение относитс к инструментам дл финишной обработки деталей и может быть использовано в машиностроении , в особенности при обработке точных и глубоких отверстий в детал х .The invention relates to tools for finishing parts and can be used in mechanical engineering, especially in the processing of precise and deep holes in parts.

Известен однопроходный хон, содержащий корпус, 8 пазах которого установлены колодки с хонинговальными брусками с возможностью перемещени по коническим опорным поверхност м хвостовика 1.A single pass hone is known, comprising a body, 8 slots of which are fitted with pads with honing bars that can be moved along the conical bearing surfaces of the shank 1.

Существенным недостатком известного инструмента вл етс низка технологичность . Продольные пазы однопроходной хонинговальной головки выполн ютс под углом к образующей наружной поверхности хвостовика, при этом посадочные поверхности необхо-. димо притирать, чтобы обеспечить требуемую точность посадки и достаточную жесткость инструмента. Трудоемкость операции притирки, как известно , вл етс очень высокой, приA significant disadvantage of the known tool is its low workability. The longitudinal grooves of the single-pass honing head are made at an angle to the forming outer surface of the shank, while the seating surfaces are necessary. It is necessary to adjust it to ensure the required precision of fit and sufficient rigidity of the tool. The complexity of the grinding operation is known to be very high, with

тирка посадочных поверхностей в паг зах хвостовика еще более затрудн ет и удорожает процесс обработки.The tyrka of seating surfaces in the liner pag makes it even more difficult and expensive to process.

Цель изобретени - повышение технологичности конструкции.The purpose of the invention is to improve the technological design.

Указанна цель достигаетс тем, что хон снабжен дополнительным опорным элементом с коническими опорными поверхност ми, а опорные поверхности колодок выполнены с двойной конусностью, при этом дополнительный опорный элемент установлен с возможностью осевого перемещени относительно жестко закрепленного в корпусе хвостовика, а опорные поверхности дополнительного элемента и хвостовика выполнены с обратной конусностью и ответными опорным поверхност м колодок.This goal is achieved by the fact that the hone is provided with an additional supporting element with conical bearing surfaces, and the supporting surfaces of the pads are made with a double taper, while the additional supporting element is mounted with the possibility of axial movement of the shank relatively rigidly fixed in the housing, made with a reverse taper and mating support surfaces of the pads.

На фиг. 1 показан однопроходный хон, продольный разрез; на фиг. 2 разрез А-А на фиг. 1.FIG. 1 shows a single pass hon, longitudinal section; in fig. 2, section A-A in FIG. one.

Claims

The tool consists of pads 1, on which honing sticks are attached. The two supporting surfaces of the pads 1 are in response to the conical surfaces of the additional supporting element 2 and the shank 3 which are connected by a pin k. The pads 1 are located in the longitudinal slots of the housing 5 which on one side is tightened by the nut 6, and on the other is fixed by the pin 7 fixed in the shank 3- the nut 6 fixing the position of the housing 5 the nut preloaded 8: the pads 1 are fixed from falling in the radial direction annular springs 9- The tool can work, depending on the equipment used, when the detail of the rotational motion is communicated (then the one-pass hon is fixed and has only the axial feed motion), and also with the fixed part (then the tool communicates ts rotary motion of axial feed). In addition, a single pass can only have a rotational movement, and a part can have a feed movement (for example, when processing small parts with small holes by hand). The tool works as follows. Adjust the tool to the desired diameter, for which the single-pass hone is inserted into the reference hole (i.e., the hole that has the diameter to be obtained during machining) screw nuts 8 and remove the nut 6 Rotate the support element 2 (for this in the latter there is a groove for a special key) until the bars are pressed into the reference hole, then the nut 6 is installed and fixed with nuts B. The tool is removed and fixed, for example, in the spindle of the vertical drilling machine, and part 3 vice x Using the Start button, the tool is informed of the rotational movement and accelerated approach to the workpiece and, further, the required axial feed. When the tool is processed, an accelerated retraction is reported and the rotary motion is turned off by the Stop button. Detail removed. Similarly, work out a batch of parts until the wear of the bars does not exceed the tolerance of machined holes. In this case, the tool is adjusted to the desired diameter through the reference hole, as described above, and the machining cycle is repeated. The use of the proposed single pass hone makes it possible to improve the manufacturability of the tool due to the absence of grooves (under the pads) in the shank; located at an angle to the generatrix of the outer surface. Claims One-pass hone, comprising a housing, in the grooves of which pads with honing 6pycKaMV-i are installed with the ability to move along the conical bearing surfaces of the shank, characterized in that, in order to improve the design technological effectiveness, the hon is provided with an additional supporting element with , and the supporting surfaces of the pads are made with a double taper, while the additional supporting element is mounted with the possibility of axial movement relatively rigidly fixed in the body of the shank, and the bearing surfaces of the additional element and the shank are made with a reverse taper and response bearing surfaces of the shoe k. Sources of information taken into account in the examination 1. S. Babaev et al. Diamond honing of deep and precise holes. M., Mechanical Engineering, 1978, p. 60-62, fig. 37., Rl

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