SU770723A1 - Apparatus for pressing in shaft-sleeve-type parts - Google Patents

Description

The installation bolts 17 serve to limit the sticking stroke.

The rod 18 is secured to the rod 3 of the pneumatic cylinder 2 through the lever 19. Two guide plates 20 prevent the rod 18 from turning. On the rod 18 there is a pressure stop 21 attached.

On the bracket 2.2 attached to the housing 4, there is a pivotally mounted cutter, made in the form of 8 grippers 23 symmetrically positioned relative to the trunnion with stops 24 for cutting off the lower pressed sleeve 6 and retaining the entire remaining set of bushings. The cam 25 mounted on the rod 18 serves to open the grippers 23, and the spring 26 serves to return them to their original position.

For operation in automatic and mechanized lines, the device contains limit switches 27, 28 and limiters 29, 30 mounted on a rod 1.8, acting on the switches.

The device works as follows.

Load the feed store with press-in sleeves 6 from below manually or with a special mechanism. The abrasive wheel 31, located on the plate 32, moving along the conveyor 33, is centered under the device, while the limit switch is pressed, from which a command is given to the pneumatic cylinder 2. With this command, the rod 3 with the lever 19 and the rod 18 moves downwards, and the cam 25 out of engagement with the anvil 24 and the grippers 23 under the action of the spring 26 are compressed, the compartment of the lower sleeve 6 of the entire set. In this position, the bottom sleeve is held by the clamps 13, and the entire set of sleeves is held by the gripper;

Upon further movement of the rod and rod, the push stop 21 acts on the folding stops 14 and rotates them together with the axles 12 and tacks 13. At this turn, the clamps 13 release the lower sleeve 6. After releasing the lower sleeve, the rod 3 presses the tip 9 and with further movement moves the rod 7 with the expanding pin 8, while the expanding pin moving along the grooves of the guide mandrel 5 under the action of its spring properties, projects from the grooves, grips the lower sleeve 6, moves it along the guide mandrel 5 and presses in the abrasive wheel 31, in this position, the pressure stop 21 passes below the folding stops 14, freeing them. Under the action of the spring 16 folding stops 14, axis 12

and the sticks 13 are rotated and occupy the initial position.

During pressing, with the lower position of the rod 3, the stop 30 presses the limit switch 28, which gives a command to return the rod 3, the lever 19 and the rod 18 with the stops up to the starting position.

Moving from bottom to top, the push lug 21 turns the folding stops 14, comes out of their engagement upwards, while the folding stops 14 under the action of the leaf springs 15 return to their original position without turning the axis 12 and the hooks 13. With the further movement of the rod 3 and the rod 18 the cam 25 enters between the stops 24, pushing them together with the grippers 23, while the entire set of sleeves 6 is installed on the grips 13. In the upper extreme position, the stopper 29 presses the limit switch 27, which gives the command to move from under the plate device 32 and but brazivny circle 31 with the pressed sleeve b and the flow of the next plate 32 with abrasive wheel 31 under the device.

After the next plate with the abrasive wheel is installed and centered under the device, a limit switch is triggered, which gives a command to the pneumatic cylinder 2, the rod 3 with the lever 19 and the rod 18 moves DOWN, and the cycle repeats ..

Claims (1)

1. USSR author's certificate 475250, cl. B 23 P 19/02, 1973, dr C. gz g. I r