SU823019A1

SU823019A1 - Device for automatic securing part or tool in multispindle machine spindle

Info

Publication number: SU823019A1
Application number: SU792802250A
Authority: SU
Inventors: Игорь Иосифович Бродецкий; Александр Александрович Сапенок; Владимир Андреевич Крючков
Original assignee: Московское Производственное Объединение"Станкостроительный Завод" Им.Серго Орджоникидзе
Priority date: 1979-07-27
Filing date: 1979-07-27
Publication date: 1981-04-23

Description

II

Изобретение относитс к станкостроению.FIELD: machine tool industry.

Наиболее близким к предлагаемому вл етс устройство дл креплени инструментальной оправки в шпинделе станка, содержащее св занный с приводом ходовой винт, взаимодействующий через гайку с т гой, соединенной с механизмом захвата хвостовика инструмента 1.Closest to the present invention, there is a device for fastening a tool holder in a machine spindle, comprising a drive screw connected to a drive, interacting through a nut with a pull connected to the tool shackle locking mechanism 1.

Недостаток устройства - отсутствие возможности его использовани дл зажима деталей в патроне многошпиндельных станков в том случае, когда с помощью одного привода осуществл етс зажим в несколькихпатронах , а также отсутствие контрол наличи зажимаемого инструмента в шпинделеThe drawback of the device is the inability to use it for clamping parts in the chuck of multi-spindle machines in the case when using a single drive is used to clamp multiple cartridges, and the lack of control of the presence of the clamped tool in the spindle

Цель изобретени - повышение надежности работы устройства и обеспечение возможности контрол зажима и наличи детали или инструмента в шпинделе многошпиндельного станка.The purpose of the invention is to increase the reliability of the device and to ensure the possibility of controlling the clamp and the presence of a part or tool in the spindle of a multi-spindle machine.

Указанна цель достигаетс за счет того, что механизм контрол снабжен упруго св занными между собой и установленными с возможностью возвратно-поступательного перемещени относительно вала кронщтейном с кулачками управлени и штырем, поочередно взаимодействующим с введенным в устройство штоком, св занны.м с т гой и установленным в отверстии ходового винта каждого шпиндел .This goal is achieved due to the fact that the control mechanism is provided with elastically interconnected and installed with the possibility of reciprocating movement relative to the shaft with a arm with control cams and a pin alternately interacting with the stem inserted into the device, connected with a thrust and installed in the spindle bore of each spindle.

На чертеже изображено предлагаемое устройство, разрез.The drawing shows the proposed device, the cut.

На переднем конце шпийдел 1 размещенAt the front end of the spire 1 posted

патрон 2, в зажимных элементах которого зажата деталь 3. Т га 4 через резьбовую втулку 5, гайку 6 и пакет 7 тарельчатых пружин соединена с механизмом перемещени зажимных элементов патрона. Ходовойthe cartridge 2, in the clamping elements of which the part 3 is clamped. The ha 4 through the threaded bushing 5, the nut 6 and the package of 7 disk springs are connected to the mechanism for moving the clamping elements of the cartridge. Running gear

Claims

The screw 8 is mounted in the spindle bearings and interacts with a nut, which is made fully with a thrust 4. In the bore of the driving screw 8, a rod 9 is placed, attached to the rod 4. At the rear end of the driving screw 8 there is an internal gear 10. The hydraulic actuator 11 by means of a key coupling is connected to the shaft 12, the hydraulic cylinder 13 is moved in the axial direction through a spring-loaded bracket 14. A gear is made on the front end of the shaft 12. On the bracket 14, the stop 15 is fixed, which interacts with sensors 16 and 17 of the extreme positions of the shaft 12 mounted on the case of the spindle assembly. In the hole in the shaft 12 there is a tongue 18, in which there is a stop 19 that moves along the shaft slot 12. Pin 18 with the stop 19 the end of the groove through the bearing of the bracket 20 is spring 21. The bracket 20 is fixed in the angular position by pin 22. On the bracket 20, control cams 23 and 24 are installed, which interact with the sensor 25 presenting the part in the cartridge and the sensor on the body of the spindle assembly. 26 magnitude of the opening of the clamping elements. A pressure relay is connected to the connection w, to them the main line of the hydraulic drive. The device works in the following way. At the command “workpiece change, the spindle with the part comes to the shift position. Further, the hydraulic cylinder 13 intermixes through the bracket 14 the shaft 12 to the extreme right position, as a result of which the teeth on the front end of the shaft and the teeth of the internal gear gear, which is made back to the rear end of the spindle, 8, are engaged. 15 presses the limit switch 17 and thus a signal is given to turn on the hydraulic actuator 11. Due to this, the shaft 12 and the lead screw 8 come into rotation. Through the nut of the rod 4, it is axially moved, for example, to the left , Whereby schtok 9 which also moves left across kronschteyn stop 19 with the control cams 20 as long as the cam 24 presses the limit switch 26, whereby the clamping elements zafiksiruets disclosure chuck to the desired value. After changing the part, the hydraulic actuator, by command, the workpiece clamp begins to rotate in the opposite direction. In this case, the ha with the rod 9 moves to the right until the part is fully clamped in the clamping elements of the cartridge. At the same time, moving to the right under the action of the spring 21 and the pin 18 through the stop 19 of the bracket 20 occurs. In the case when the clamping elements of the cartridge 2 clamped the part, the pull 4 and the pin 9 stopped in a certain axial position, which is fixed by pressing the cam 23 on a limit switch 25 and a pressure switch that receives the corresponding signal. If, for any reason, the part was missing in the cartridge, then the ha 4 with the shock 9 moved to the right until the clamping elements of the cartridge were not set against the stops. In this case, the cam 23 will go off the limit switch 25, and therefore, the signal from it will not come. Next, the hydraulic cylinder 3 through the bracket 14 moves the shaft 12 to the left until the stop 15 presses the limit switch 16, as a result of which the hydraulic drive is turned off. In this way, the presence of a part in the chuck is monitored as its clamping elements move toward the center of the chuck. If the part is to be clamped by the chuck clamping elements from its center to the periphery, then the control cams 23 and 24, as well as the limit switches 25 and 26, act in reverse order. When the part in the spindle is completed, it moves out of position shifts, making room for similar operations with the next spindle of a multi-spindle machine. Apparatus of the Invention A device for automatically fastening a part or tool in a chipper of a multi-spindle machine, comprising an axially mounted axial movement from the cylinder and a shaft connected to the drive, alternately interacting with a lead screw connected in each shaft connected to a spring-loaded thrust connected with a mechanism for moving the clamping elements of the cartridge, and a mechanism for controlling the clamping and the presence of a part or tool, characterized in that, in order to increase the reliability of operation of the mouth The device is equipped with a rod, and the control mechanism is elastically interconnected and mounted for reciprocating movement of the shaft with a bracket with control cams and a pin installed with a spindle. Goy and installed in the spindle screw hole of each spindle. Sources of information taken into account during the examination 1. USSR author's certificate No. 611737, cl. B 23 C 5/26, 1977.

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