SU910377A1

SU910377A1 - Gear working machine

Info

Publication number: SU910377A1
Application number: SU802933670A
Authority: SU
Inventors: Илья Алексеевич Прилепский; Борис Александрович Богомолов
Original assignee: Саратовское Специальное Конструкторское Бюро Зубообрабатывающих Станков
Priority date: 1980-06-02
Filing date: 1980-06-02
Publication date: 1982-03-07

Description

Изобретение относится к области металлообработки и может найти применение при производстве зубчатых колес.The invention relates to the field of metalworking and may find application in the manufacture of gears.

Известен станок, на станине кото- $ рого установлена бабка, связанная с приводом, и упор бабки, представляющий собой гидроцилиндр [1] .A machine is known, on the bed of which a headstock is installed, connected with the drive, and a headstock stop, which is a hydraulic cylinder [1].

Недостатком станка является то, ' что гидроцилиндр не снабжен механизмом изменения скорости перемещения бабки.The disadvantage of the machine is that the hydraulic cylinder is not equipped with a mechanism for changing the speed of the headstock.

Целью изобретения является повышение производительности обработки.The aim of the invention is to increase processing productivity.

Поставленная цель достигается тем, ₁₅что предложенный станок снабжен механизмом изменения скорости поступательного перемещения бабки, включающим плиту,'размещенную на станине с возможностью повррота, линейку и ку- _млачок, смонтированные на плите, следящий распределитель, закрепленный на корпусе гидроцилиндра,кронштейн с роликом, смонтированный на штоке гидроцилиндра,и шестерню с резьбовым отверстием, включенную в кинематическую цепь станка, причем линейка смонтирована с возможностью поворота, следящий золотник - с возможностью взаимодействия с кулачком, а на штоке выполнена винтовая нарезка для взаимодействия с резьбовым отверстием шестерни.The goal is achieved by the fact that the proposed machine ₁₅ is provided with a mechanism for changing the speed of translational movement of the headstock comprising a plate, 'disposed on the frame with the possibility povrrota, and line ku _m lachok mounted on the plate, servo valve, hydraulic cylinder mounted on the housing, with the roller bracket mounted on the rod of the hydraulic cylinder, and a gear with a threaded hole included in the kinematic chain of the machine, and the line is mounted with the possibility of rotation, tracking spool - with the possibility of inter action with the cam, and a screw thread is made on the rod to interact with the threaded hole of the gear.

На фиг. 1 изображен станок для нарезания крупномодульных конических колес, вид в плане; на фиг. 2 - схема механизма подачи; на фиг. 3 “ гидравлическая схема.In FIG. 1 shows a machine for cutting large-modular bevel wheels, plan view; in FIG. 2 is a diagram of a feed mechanism; in FIG. 3 “hydraulic circuit.

Станок для нарезания крупномодульных конических колес содержит станину 1, бабку изделия 2, перемещаемую относительно инструментальной бабки 3 по станине по заранее определенному закону с помощью механизма изменения скорости поступательного перемещения бабки 4.A machine for cutting large-modular bevel wheels contains a frame 1, a headstock of a product 2, which is moved relative to the tool head 3 along the bed according to a predetermined law using a mechanism for changing the speed of translational movement of the headstock 4.

• 8 неподвижном относительно станины корпусе 5 редуктора смонтирована гайка-шестерня 6. В нее входит на резьбе винт 7, зафиксированный шпонкой от проворота относительно корпуса 5 редуктора. На конце винта 7 закреплен кронштейн 8 с роликом 9 и поршень 10 гидроцилиндра, на котором подвижно относительно него смонтиро. ван корпус цилиндра 1 1 . На нем установлен следящий распределитель 12 со штоком 13, на конце которого прикреплен контактный ролик 14. На станине 1 станка смонтирована поворотная плита 15 на оси 16. На плите 15 закреплены линейка 17, имеющая возможность поворота, при регулировке взаимодействующая с роликом 9, и кулачок 18, воздействующий через контактный ролик 14 на следящий распределитель 12. Плита 15 подтягивается пружиной 19 До упора линейки'17 на ролик 9. Каретка 20 бабки изделия подведена до упора 21, расположенного на корпусе цилиндра 11, гидроципиндром привода 22. На станине 1 станка смонтирован жесткий упор 23, В который упирается каретка 20 бабки изделия в конце своего хода.• 8 gear nut 6 mounted relative to the frame of the gear housing 6. A nut 6 is mounted on it. Screw 7 is attached to the thread and is secured with a key to prevent it from turning relative to gear housing 5. At the end of the screw 7, a bracket 8 is fixed with a roller 9 and a piston 10 of the hydraulic cylinder, on which it is mounted relative to it. van cylinder housing 1 1. A follower distributor 12 with a rod 13 is mounted on it, at the end of which a contact roller is attached 14. A rotary plate 15 is mounted on the axis 16 on the machine bed 1. A ruler 17 is mounted on the plate 15, which can be rotated, interacting with the roller 9 when adjusting, and a cam 18, acting through the contact roller 14 on the follower distributor 12. The plate 15 is pulled by a spring 19 Until the stop of the ruler'17 on the roller 9. The carriage 20 of the product head is brought up to the stop 21 located on the cylinder body 11, the hydraulic cylinder of the drive 22. On the frame 1 st NCA mounted fixed stop 23, which abuts against the carriage 20 workhead at the end of its travel.

Станок работает следующим образом.The machine operates as follows.

В начале цикла гайка-шестерня 6 приводится во вращение с постоянной угловой скоростью от кинематической цепи станка и равномерно перемещает винт 7 вправо в исходное положение. Одновременно гидроцилиндр 22 отводит каретку 20 бабки изделия вправо в исходное положение. В этом положении шток 13 следящего распределителя с контактным роликом 14 освобождается от соприкосновения с кулачком 18 и корпус цилиндра 11 перемещается под действием рабочей жидкости относительно поршня 10 влево до упора в поршне. Затем начинается рабочий ход.At the beginning of the cycle, the gear nut 6 is rotated at a constant angular speed from the kinematic chain of the machine and uniformly moves the screw 7 to the right to its original position. At the same time, the hydraulic cylinder 22 moves the carriage 20 of the headstock to the right to its original position. In this position, the rod 13 of the follower valve with the contact roller 14 is released from contact with the cam 18 and the cylinder body 11 is moved under the action of the working fluid relative to the piston 10 to the left in the piston. Then the working stroke begins.

Гидроцилиндр 22 подводит каретку 20 бабки изделия до упора на цилиндрThe hydraulic cylinder 22 brings the carriage 20 of the headstock to the stop on the cylinder

11. После реверса кинематической цепи станка гайка-шестерня 6 начинает перемещать винт 7 влево с постоянной скоростью до тех пор, пока ролик 9 не соприкоснется с линейкой 17, а контактный ролик 14 штока следящего распределителя - с кулачком 18. При дальнейшем перемещении винта 7 влево ролик 9, перемещаясь по лийейке 17, поворачивает вокруг оси 16 основание 15, с кулачком 18. Корпус цилиндра 11 и установленный на нем следящий распределитель 12 перемеща-11. After reversing the kinematic chain of the machine, the gear-nut 6 begins to move the screw 7 to the left at a constant speed until the roller 9 is in contact with the ruler 17 and the contact roller 14 of the rod of the follower distributor is in contact with cam 18. When the screw 7 is moved further to the left the roller 9, moving along the line 17, rotates around the axis 16 the base 15, with a cam 18. The cylinder body 11 and the tracking distributor 12 mounted on it

24, следящий напорную магист10 формы кривой етсЯ .вправо по поршню с переменной скоростью, которая зависит от объема' рабочей жидкости, поступающей в правую часть корпуса цилиндра 11 через напорную магистраль распределитель 12 и раль 25.24, the pressure head monitoring curve 10 is provided. To the right along the piston with a variable speed, which depends on the volume of working fluid entering the right side of the cylinder body 11 through the pressure pipe, distributor 12 and rake 25.

зависимости от кулачка 18 корпус цилиндра 11 начинает перемещаться относительно винта 7 •с переменной •скоростью. В это же вре-. !мя рабочая жидкость из левой полости гидроцилиндра сливается через сливную магистраль 26, следящий распределитель 12 и сливную магистраль 27.Так как каретка 20 бабки изделия постоянно поджимается к упору 21 с помощью гидроцилиндра 22, то каретка 20 перемещается по тому же закону, что и корпус цилиндра 11. На этом заканчивается рабочий ход.depending on the cam 18, the cylinder body 11 begins to move relative to the screw 7 • with a variable • speed. At the same time. ! me working fluid from the left cavity of the hydraulic cylinder is discharged through a drain line 26, a follower 12 and a drain line 27. Since the carriage 20 of the product head is constantly pressed against the stop 21 by means of a hydraulic cylinder 22, the carriage 20 moves according to the same law as the case cylinder 11. This completes the stroke.

При необходимости скорость движения бабки -изменяют за счет изменения наклона линейки 17 и за счет изменения положения кулачка 18 на плите 15-.If necessary, the headstock speed is changed by changing the inclination of the ruler 17 and by changing the position of the cam 18 on the plate 15-.

Предложенный станок позволяет повысить производительность обработки благодаря изменению рабочей подачи бабки изделия по определенному закону«The proposed machine allows to increase processing productivity due to a change in the working feed of the headstock of the product according to a certain law "

Claims

The invention relates to the field of metalworking and can be used in the manufacture of gear logs. A machine tool is known, on the bed of which a grandmother connected with the drive is installed, and the support of the headstock, which is a hydraulic cylinder 1. The disadvantage of the machine is that the hydraulic cylinder is not equipped with a mechanism for changing the speed of movement of the headstock. The aim of the invention is to improve processing performance. The goal is achieved by the fact that the proposed machine is equipped with a mechanism for changing the speed of translational movement of the headstock, including a plate placed on the frame with the possibility of turning, a ruler and a cam mounted on the plate, a follower distributor fixed on the cylinder body, a bracket with a roller mounted on the rod hydraulic cylinders, and a gear with a threaded hole included in the kinematic chain of the machine, the ruler mounted pivotally, the follow valve - with the possibility of action with a cam on the rod and configured for threaded engagement with a threaded hole gear. FIG. 1 shows a machine for cutting coarse-grained conical wheels, a plan view; in fig. 2 is a diagram of the feed mechanism in FIG. 3 hydraulic circuit. The machine for cutting coarse-grained conical wheels contains a bed 1, the headstock of the product 2 moving relative to the tool headstock 3 along the bed according to a predetermined law using the mechanism for changing the speed of the translational movement of the headstock 4.. In the case 5, which is stationary relative to the base of the gearbox, a nut-gear 6 is mounted. A screw 7, which is secured by a key against rotation of the gearbox housing 5, enters it on the thread. At the end of the screw 7, the bracket 8 is fixed with the roller 9 and the piston 10 of the hydraulic cylinder, on which the cylinder body 1 is mounted movably relative to it. A follower distributor 12 with a rod 13 is installed on it, at the end of which a contact roller 14 is attached. At the base of one machine, a rotary plate 15 is mounted on an axis 16. A ruler 17 is attached to the plate 15, which has the ability to rotate, when adjusted, interacts with the roller 9 and the cam 18 acting on the follower distributor 12 through the contact roller. The plate 15 is pulled by the spring 19 until the ruler 17 stops against the roller 9. The carriage 20 of the headstock is brought up to the stop 21, located on the cylinder body 11, by hydrocyping driver 22. On the bed 1, a fixed stop 23 is mounted on the machine, p which rests against the carriage 20 of the workpiece at the end of its turn. The machine works as follows. At the beginning of the cycle, the nut-gear 6 is rotated at a constant angular velocity from the kinematic chain of the machine and evenly moves the screw 7 to the right to its original position. At the same time the hydraulic cylinder 22 take the carriage 20 of the headstock of the product to the right to its original position. In this position, the rod 13 of the follower distributor with the contact roller 14 is released from contact with the cam 18 and the cylinder body 11 moves under the action of the working fluid relative to the piston 10 to the left against the stop in the piston. Then the working stroke starts. Hydrocyliner 22 brings the carriage 20 of the workhead 20 up to the stop on cylinder 11. After reversing the kinematic chain of the machine, the nut-gear 6 begins to move the screw 7 to the left at a constant speed until roller 9 contacts the ruler 17, and the pin roller 14 of the follower distributor stem - with a cam 18. With further movement of the screw 7 to the left, the roller E, moving along the ferrule 17, turns around the axis 16 the base 15, with the cam 18. The cylinder body 11 and the follower distributor 12 mounted on it move91 4 e right at the piston with variable speed, which depends on the volume of working fluid flowing into the right crust of the cylinder body 11 through the pressure line 2C, the next valve 12 and the pressure line 25. 3 depending on the shape of the cam curve 18 the cylinder body 11; move relative to the screw 7 1c with variable speed. At the same time. | m working fluid from the left cavity of the hydraulic cylinder is drained through the drain line 2b, the follower valve 12 and the drain line 27. As the carriage 20 of the workhead 20 is constantly pressed against the stop 21 by means of the hydraulic cylinder 22, the carriage 20 moves according to the same law , as the cylinder body 11. This completes the working stroke. If necessary, the speed of movement of the headstock is changed by changing the slope of the ruler 17 and by changing the position of the cam 18 on the plate 15. The proposed machine allows to increase processing performance by changing the working floor of the headstock of a product according to a certain law Formula of the Inventory machine, on the bed of which a workhead has been installed, and the headstock stop, which is a self-hydraulic cylinder, characterized in that, in order to increase the processing capacity, the machine is equipped with the anism of changing the speed of the forward movement of the headstock, including the plate placed on the bed, can be rotated, the ruler and the cam mounted on the plate, the follower valve mounted on the hydraulic cylinder body, the bracket with the roller mounted on the rod of the hydraulic cylinder, and the gear with a threaded hole included in the kinematic chain of the machine, with the ruler mounted pivotally, the next slide valve - with the ability to interact with the cam, and the screw is made on the rod for cutting Equipped with a threaded pinhole. Sources of information taken into account in the examination 1. Metal-cutting machines, under. ed. N.S. Lcherkon, vol. 1, p. 299, M., Mechanical Engineering, 1965f, if iniillilltllliiliyiJIii ///////////////////////// chl V //// // 7/7 //// l ///// A / /// AL 11 .1 0

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