SU651899A1

SU651899A1 - Turret head

Info

Publication number: SU651899A1
Application number: SU762340986A
Authority: SU
Inventors: Владимир Давыдович Брискин
Priority date: 1976-03-29
Filing date: 1976-03-29
Publication date: 1979-03-15

Description

1:one:

Изобретение относитс к области металлообработки , в частности к быстродействующим револьверным головкам. The invention relates to the field of metalworking, in particular to high-speed turret heads.

Известны револьверные головки, содержащие неподвижное основание и подпружиненный относительно него корпус резцедержател , имеющий возможность поворота посредством двух полумуфт, одна из которых - ведуща - св зана с приводом поворота , а друга - ведома - с корпусом резцедержател , при этом дл предварительной фиксации корпуса резцедержател между ним и неиодвижным основанием размещен подпружиненный упор, передн грань которого контактирует со стенкой паза, выполненного на торце корпуса резцедержател 1.Turret heads are known, which contain a fixed base and a toolholder body spring-loaded relative to it, which can be rotated by means of two coupling halves, one of which is leading with a rotary drive, and the other is known with the toolholder body, while preliminarily fixing the toolholder body between A non-movable base and a spring-loaded abutment are placed on it, the front face of which is in contact with the wall of the groove made on the end of the body of the tool holder 1.

Известные револьверные головки недостаточно надежны в работе из-за больших ударных нагрузок, возникающих в момент соприкосновени пр молинейных уступов полумуфт При разгоне.Known turrets are not reliable enough in operation due to the large shock loads that occur at the moment of contact of the straight line half-coupled benches during acceleration.

Целью изобретени вл етс повышение надежности головки.The aim of the invention is to improve the reliability of the head.

Поставленна цель достигаетс тем, что в корпусе резцедержател выполнены наклонные отверсти , в которых размещены введенные в головку подпружиненные толкатели , предназначенные дл взаимодействи с поверхностью неподвижного основани , а передн грань подпружиненного упора и стенка паза корпуса выполнены подострым углом к основанию.The goal is achieved by inclined holes in the tool holder body, in which spring-loaded pushers inserted into the head are placed to interact with the surface of the fixed base, and the front edge of the spring-loaded stop and the wall of the housing groove are made with a sub-acute angle to the base.

На фиг. I изображена револьверна головка , продольный разрез; на фиг. 2 иоказан разрез А-А на фиг. 1; на фиг. 3 показано сечение Б-Б на фиг. 2; на фиг. 4 - то же сечение при вращающемс резцедержателе; на фиг. 5 - сечение В-В на фиг. 2; на фиг. 6 представлены кулачковые полумуфты в аксонометрии.FIG. I depicts a turret head, a longitudinal section; in fig. 2 and section A-A in FIG. one; in fig. 3 shows section BB in FIG. 2; in fig. 4 - the same section with a rotating tool holder; in fig. 5 is a sectional view BB in FIG. 2; in fig. 6 shows cam half couplings in perspective view.

Револьверна головка содержит привод , передающий вращение корпусу резцедержател 2, который вращаетс в подшипниках скольжени 3. Вращение передаетс че5 рез ведущую полумуфту 4 ведомой полумуфте 5, соединенной с корпусом резцедержател .The revolving head contains a drive that transmits rotation to the holder of the tool holder 2, which rotates in the sliding bearings 3. The rotation is transmitted through the cutting drive coupling half 4 to the driven coupling coupling 5 connected to the tool holder housing.

Claims

The drive supports are the bearings 6 fixed in the housing 7. The housing 7 is based through the lid 8 on the splines 9 of the central axis 10 and is clamped by the nut 11. The axis 10 is rigidly fixed to the fixed base 12 to which the flat gear 13. is attached. Similar. flat gear wheel 14 is fastened to the toolholder body. Flat gears 13 and 14 are made basing and final fixation of the toolholder body. A compression spring 15 is placed in the toolholder housing, which rests on the thrust bearing 16. At some distance from axis 0, inclined holes 17 are made (Fig. 3), in which spring-loaded pushers 18 are located. Holes 17 are angled to the axis of the drag in such a way that the elastic forces of the spring-loaded pushers are tblkayut corps of the toolholder in the direction of Lenin its rotation when changing positions. The pushers are in contact with the support surface 19 of the fixed base 12, made of friction material, for example ferrado. In a stationary base, there is a bore 20 (Fig. 5) in which the stop 21 is located, which is under the influence of the spring 22. On the stop there are two faces: a face 23 with a gentle bevel that interacts with a similar bevel 24 on the tool holder body during its rotation, and the face 25, is inclined at an acute angle to the base and interacting with the groove wall of the tool holder body during its clamping. The stencil is also made at an acute angle to the base. Each cam of the cam half couplings 4 and 5 has two faces (Fig. 6): curvilinear face 26; designed to create a certain clamping force, and a rectilinear edge 27 that transmits a torque from the driving coupling half 4 to the driven coupling coupling 5. The turret works as follows. After giving the command, the actuator 1 starts to rotate the leading cam half coupling 4 proTiv clockwise. Before the start of rotation, there is a gap between the straight lines of the 27 faces of the cam 4 and the driven 5 half couplings. As it turns, this gap decreases and the spring 15 pushes the tool body 2 upward. Spring-loaded pushers 18 press the toolholder body upward and push it in the direction of the leading coupling half. 4, pushing off the supporting point 19 of the fixed base 12. Due to this interaction of the pushers with the supporting surface 19, the leading and driven semi-coupling lateral has last some speed. The pusher stroke is chosen such that at the moment of contact of the straight edges 27 of the driving and driven half coupling between the bearing surface 19 and the pushers there appears a gap, due to which the pushers do not prevent the tool holder from rotating. Touching the straight faces 2, the leading coupling half 4 rotates the toolholder body to the desired position through the driven coupling half 5 to the desired position so that the tool body housing pushes some distance above the stop 21, which is squeezed up under the action of the spring 22. The DRIVE is reversed and the groove wall of the tool holder body abuts against the front face 25 of the stop 21. The driving coupling half, while continuing to rotate, with its curvilinear faces 26, pushes the driven coupling half and with it the tool holder housing down. The toolholder body slides along the face 25 of the stop 21, based on flat gears 14 and 13. Invention formula. The revolving go..1ovka, containing a fixed base and a toolholder housing spring-loaded relative to it, has the ability to rotate by means of two coupling halves, one of which — the ledge — is connected with the turn drive, and the other — the drive body — with the holder Pre-fixing the tool-holder body between it and the fixed base is placed a spring-loaded stop, the front face of which is in contact with the wall of the groove made on the tool-body butt end, which is The reliability of the head, in the case of the tool holder, are inclined holes in which spring-loaded pushers inserted into the head are placed to interact with the surface of the fixed base, and the front face of the spring-loaded stop and the wall of the housing groove are made at an acute angle to the base. .Sources of information taken into account during the examination 1. Drawing No. 16KZOF30240001 “Tool holder, developed in 1973 by the Special Design Bureau at the R Machine Tool Plant.