SU1602668A1 - Arrangement for clamping parts - Google Patents

Abstract

The invention relates to mechanical engineering, in particular to mechanisms for clamping workpieces on machine tools. The purpose of the invention is to improve serviceability by increasing the working area. The device comprises a housing 1, in the slot of which an axle 3 is mounted on the axis with the possibility of angular movement / rotation / relative to an axis fixed in the housing in the axial direction by a screw and having a pinion gear 5 and a groove. The elastic element (spring spring) interacting with the collar, force closure of the clamp 3 on the axis groove through a locking fork fixed to the clamp by a screw 10. In the case there is a piston with a rod 12, which engages with the rod 13 with the axis, and the ledge 14 on the rod 12 is in contact with the clamp 3 during the final clamping of the part. A housing 15 is mounted on the housing 1 for mounting the workpiece, in addition, a petal 17 is fixed on the rod 12, which controls the operation of the limit switches 18 through a slot in the housing. 2 Il.

Description

g /

one

displacement (rotation) relative to the axis fixed in the housing in the axial direction with a screw and having a pinion gear 5 and a groove. The elastic element (spring taller), interacting with the collar, force closes the sticking 3 to the axis groove through the locking fork fixed to the sticking 3 with a screw 10. In the case there is a piston with a rod

ball 12, which engages with the rail 13 with the axis, and the step 14 on the rod 12 contacts with the clamp 3 during the final clamping of the part. A housing 15 is mounted on the housing 1 for mounting the workpiece, in addition, a petal I7 is fixed on the rod 12, which controls the operation of the end switches 18 through a slot in the housing. 2 Il.

The invention relates to mechanical engineering, in particular to mechanisms for clamping workpieces on machine tools.

The purpose of the invention is to improve serviceability by increasing the working area.

On . shows the device, a general view; FIG. 2 —a section A-A in FIG. 1 o

The device includes a housing 1, in the slot of which on axis 2 a clamp 3 is installed with the possibility of angular movement (rotation) relative to axis 2 fixed in housing 1 in the axial direction by screw 4- and having a pinion gear 5 and a groove 6. Elastic element (tarpaulin spring) 7, interacting with the collar 8, carries out power closures of the sticking 3 to the groove 6 of the axis 2 through a locking fork 9 fixed to the sticking 3 with a screw Yuo

In the bore of the housing 1 is located

11, the piston with the stem J2, on which the rail 13 is made, interoperates with the pinion gear 5. axis 2, and the ledge 14, in contact with the clamp 3 during the final clamping of the part. On the housing 1, a bracket 15 is mounted for stopping the tack 3 and an adjustable support 16 for mounting the workpiece. A lobe 17 is fixed on the rod 12, controlling the operation of the final switch — lei 18.

The device for clamping parts works as follows.

When the piston moves upward with the rod 12, the axis 2 rotates and due to the presence of friction between the axis

five

0

0 5

0

five

0

five

and grip 3, the latter makes an accelerated approach to the workpiece and its preliminary clamping. The further stroke of the piston with the rod 12 starts the idle rotation of the axis 2 relative to the sticking 3 until the ledge 1 4 on the choke 12 comes into contact with the sticking 3 with the further final clamping of the part.

Claims (1)

When the piston moves with the rod 12 downward, rotation in the opposite direction of axis 2 and frictionally associated grip 3 occurs, and axis 2 rotates faster than grip 3, since the latter abuts against shoulder 14 on rod 12. After declining of clamping 3 with shoulder 14, the axis rotates synchronously with tack 3 until it stops in bracket 15. With the further course of the piston with rod 1 2 up to the stop in the ring 11, the device returns to its original position by rotating the axis 2 with the stationary clamp 3. Invention Formula A device for clamping a part comprising a rotary tack placed on an axis mounted in the housing with displacement relative to the hydraulic actuator stem, characterized in that, in order to improve serviceability by increasing the working area, the rod is made on the rod, and interoperable with the last pinion gear, with the rotatable clamp attached; with the axis of the friction by means of an elastic element introduced into the device, and on the rod there is a step designed to fix the pivot sticking during the clamping. LD