DE1922644C - Device for stopping the spindle of a machine tool - Google Patents

Description

Device of the type mentioned above, engaged with the spindle in a certain angular position

create, which can become a 65 with improved energy use. By adjusting the throttle

has a simpler, more advantageous biological design. the creep speed can be determined here

According to the invention, this object is thereby achieved. The hydrostat enables it through its

solves that the additional motor is a hydrostatic with a reversibility overriding the desired

Position mi, high, Schieichdr ^, UBd gently backwards in the end position. _.

The effort that is required to create a device according to the invention, .st thus
extremely low, with the use of ™ »

τ · ι 21 by means of a rolling

dSaT is stored, some the »rtsleste

rotatable ge S ^ Fl ^ ¹ KSSm 17 des de

part ^ _{dream 2} i »«! ' ngskupplung ^{c 'de'} S _n piston 16. On ^ "4 beemB" end Ko.o ^ _h

- ■

is given below. Hand of -

F i g. 1 to form a unit on «." Page

_{3 in the} predetermined angular position

WMtmi

the spindle 2 test verouuucu, wauiw.v.

Driver 12 for the outer lamellae 14, which is disengaged, can be aaoei mc uivi ^ u ».

which can also be set as cylinder 15 for one via the pressure. As soon as the with the hydrostatic piece 18 on the slats 13,14 acting KoI- 65 33 connected, not in this embodiment ben 16 is formed, spindle shown via pins 23 and screws a predetermined angular position 24 firmly attached to the rotor 20 of the hydrostat 5, it can be closed by means of the fixing device is. The hydrostat 5 will be one of one.

Here for 1 sheet of drawings

Claims (5)

Runner, which is driven by static pressure of a pump via patent claims: a pressure line and via a hy- 1. Device for stopping the spindle of a hydraulically operated friction * upphüjj nut of the Spm machine tool in a certain angular position del can be connected, and that the ^ 3 ™ Pg ^un g by braking and further turning of the spindle 5 to the pressure line of the pump ^ ges ^ tasra is
In an embodiment of the invention, it is provided that automatically switched on additional motor up to the speed setting of the hydrostatic in its actuation of a fixing device, the inlet and outlet line an adjustable throttle ° ^a - ^a & · ^e "\ - satzmoior of a pressure medium is driven, and that the pressure medium supply line and characterized in that the supply ίο the pressure medium discharge line of the hydrostatic with set motor is a hydrostatic with a rotor (20), a control unit are connected through which the static pressure of a pump is driven, for example, as a function of the differential pressure between the pressure line, and the fixing internally actuated friction clutch (4) can be actuated with the device via one of the two pressure medium lines. Spindle (2) can be connected, and that the friction 15 coupling (4) to the pressure line (6) of the pump invention, it is also possible to use the hydrostatic connected. one together with a pressure relief valve 2. Apparatus according to claim 1, characterized to be assigned effective pressure accumulator, which indicates that the pressure medium drain line is used to set the speed.
Hydrostats (5) in the discharge line (7) of which there is an adjustable throttle (8) or the like that can be used as a hydrostat according to a further feature. a vane pump can be provided, the 3. Apparatus according to claim 1 or 2, that wing-bearing rotor with one clutches characterized in that the pressure medium supply is permanently connected and the housing is fixed in place (6) and the pressure medium drain line (7) is net. of the hydrostatic unit (5) with a control device (9) in FIG. 25 A front connection formed according to the invention stands by the z. B. depending on the device to shutdown the spindle of a tool the differential pressure between the two printing machines in a certain angular position is shown Central lines (6, 7) the fixing device (3) not only because of a simple structure and thus is operative. due to low manufacturing costs, but above all 4. Apparatus according to claim 1 or 2, da- 30 by a high level of operational reliability and easy penetration characterized in that the hydrostat (33) adjustability, through which a versatile usability a pressure relief valve (42) is guaranteed. By the fact that namely for the tax cooperator Pressure accumulator (34) assigned to the speed of the spindle to be stopped is, the in the pressure medium drain line (41) operable by pressure medium clutch and a is used. 35 hydrostatic units are provided, which are connected to a common 5. Device according to e'.nem of claims 1 pressure medium line are connected so that this to 4, characterized in that act as a hydrostatic joint, it is in a simple manner (5) A vane pump (19, 20, 21) possible, the spindle to be shut down on creep rotation is to bring the rotor (20) carrying the wings and in this operating state the number with the one coupling part (12) firmly connected to engage 40 fixing device. and the housing (19) of which is arranged in a stationary manner. The signal to reach the creep speed is given by suitable control means what has the consequence that the pressure medium over the common The invention relates to a device with the same feed line at the same time as the friction Shutting down the spindle of a machine tool 45 clutch and the hydrostatic is fed. the in a certain angular position by braking and clutch, if the spindle with a high Further turning of the spindle is driven by a while uncoupling speed, in this case schlospeln the main drive can be switched on automatically and the hydrostat is controlled by an auxiliary motor also driven until a fixing device part of the friction clutch is actuated, device, the additional motor from a pressure 50 and at a speed determined by the setting means is driven. arranged in the drain line of the hydrostatic With this preamble, the invention takes on nete throttle can be determined so that a back pressure a state of the art of devices for built and the speed of the hydrostatic as well Shutting down spindles on machine tools. as it is limited in the German Auslegeschrift 1 086 109 55 baren torque of the clutch. The rubbers is. There the additional motor is one with an exercise clutch that brakes in this operating state. is Compressed air powered turbine, which after hydrodynamic the speed of the spindle to be stopped so far Mixing principle works and which the energy of the decreased that the constant pressure of the pressure fluid completely consumed. The runner controls the pressure in the exhaust turbine in the inlet line is firmly connected to the spindle. If the flow line of the hydrostatic exceeds this 60, this is how it works Device can disadvantageously only continue for one as a motor and the spindle comes with one Direction of rotation of the spindle. Creep speed at which the The invention is based on the object of a fixing device which can be influenced by lines for stopping