SU114614A2 - Device for feeding blanks from the magazine to the chuck spindle turning, grinding, etc. machine tools - Google Patents

Description

A device for feeding workpieces from a magazine to a spindle chuck of a lathe, grinding machine, etc., includes a mechanical arm swinging in a direction perpendicular to the spindle axis and provided with a pusher to push the workpiece into the chuck. pneumatic drive and switching movements with fixed stops.

The described device, in comparison with the known, is more reliable in operation, due to the implementation of pushing the workpiece into the spindle cartridge by the reciprocating movement of the mechanical arm along the spindle axis,

For this purpose, the mechanical arm is rigidly connected with the driven coupling located along the axis of its rotation with the end cam surface interacting with the corresponding cam surface of the drive coupling half coaxially located and associated with it, which is rotatable under the influence of a pneumatic actuator.

FIG. 1 shows a side view of the device; in fig. 2 is a view along arrow L in FIG. one; in fig. 3 is a diagram of a mechanical arm assembly with a driven and leading coupling halves; in fig. 4 is a view along arrow B in FIG. 3

On the rear frame, for example single-spindle turning-trimming. of the TOP-200 type machine, the bracket 1 is fixed, on which the main components of the described device are mounted: mechanical arm 2, pneumatic cylinder 3, fixed stops 4 and 5 and discharge chute 6. The carrier 7 is mounted on the shank of the hollow drive half coupling and connected to last pin 9. In the center hole of the coupling half

No. 114614

8 is freely mounted a movable sleeve 10 with a flange, at the front end of which is put on the knowledge of the coupling half // and mechanical arm 2.

The driven half coupling // and mechanical arm 2 are rigidly connected to the flange of the movable bushing JO by means of pins 12 and a nut 13. The leading coupling half 8 and the driven coupling half // are interconnected by an extension spring 14.

At the end of the mechanical arm 2 there is a head 15, made in the form of a mandrel with spring-loaded balls, which serves to grip the rings of ball bearings from the tray-store 16, transfer them to the cartridge 17 and push it into the cartridge.

On the driven half coupling 11 on the axis 18 a rotating roller 19 is fixed.

The floor of the movable sleeve 10, together with the driven half coupling and the mechanical arm 2, perform rotation-return movements through the carrier 7, driven by the rod of the pneumatic cylinder 3. At certain moments, the coupling half // coupling together with the mechanical arm 2 performs longitudinal movements along the spindle axis to chuck 17 or to the magazine tray and back at the time when the carrier 7 with the leading half coupling makes turning movements. These longitudinal movements are carried out due to the fact that at the end of the leading coupling half 8 there are two knuckles strengthened, the faces of which are made along a helical line, and at the end of the driven coupling half // there are two notches of the corresponding shape. At a certain moment, the roller 19 of the driven half-coupling comes into contact with one of the fixed stops 4 or 5 fixed on the side of the arm /.

Starting from this moment, the leading half of the ft 8 continues the pivoting movement of its axis, and knowing the coupling half // and the mechanical arm 2 begin a longitudinal movement and either the ring is inserted into the cartridge or the ring is seized from the tray magazine. When the carrier 7 starts a reverse turn, knowing the half-coupling And with a mechanical arm also begin a reverse turn and, at the same time, a linear-longitudinal movement from the cartridge or from the tray store. At the moment the coupling half closes, the movement of the driven coupling half // is connected to the pivoting movement of the driving coupling half, and the mechanical arm 2 performs a swinging movement.

Returnable longitudinal movement of the driven half coupling 11 with mechanical arm 2 to complete closing of the coupling half occurs under the action of the spring 14, which interacts during the periodical turning movements of the mechanical arm. Up to the moment of contact of the roller 19 with the stops 4 V. 5. E - either of these stops, the coupling halves are disengaged and begin to make separate movements, with the driven coupling half moving // straight, pushing the mechanical arm to the cartridge 17 or to the magazine tray.

A spring-loaded cup with stop-ejectors is inserted into the chuck 17, which push the machined ring out of the cartridge into the movable chute 20 moving together with the machine caliper. From chute 20, the processed ring, when the caliper is moved to the rear position, rolls down into discharge chute 6.

Subject invention

Device for feeding blanks from the store to the chuck spindle turning, grinding, etc. machines on the author. St. No. 114380, characterized in that, in order to push the workpiece into the machine spindle chuck by the reciprocating movement of the entire mechanical arm along the spindle axis, the mechanical arm is rigidly connected with a driven half coupling located along the axis of its rotation, interacting with the corresponding a cam surface, coaxially arranged and associated with it a leading edge of the coupling half, turning under the influence of a pneumatic actuator.

No. 114614

G7

FIG. one

L.