INSERTION TOOL FOR SPIRAL SPRING INSERT WITHOUT DRAW-BAR Russian patent published in 2015 - IPC B25B27/30 

FIELD: machine building.

SUBSTANCE: invention relates to tools for spiral springs installation in products. Tool 1 for insertion of the spiral spring insert without draw-bar contains a core 43 for insertion in the product of the spiral spring insert 100, at least driven end part of it is made by screw shaft 45 and rotating clamp 80. The rotating clamp 80 is provided with clamping section 81, that is engaged with groove 101 of the end spring section of the spiral spring insert 100 without draw-bar screwed on the screw shaft 45. The rotating clamp 80 has the resilient element 83 of connection, its one end is secured to the groove 71 of the rotating clamp securing, and another end is secured to the clamping section 81. At that the resilient element 83 of connection is made with possibility of shifting of the clamping section 81 outside in radial direction of the screw shaft 45 for the resilient engagement of the engaging section 90 created in the clamping section 81 with groove 101 of spiral spring insert 100 without draw-bar.

EFFECT: simple design of tool upon keeping its high operability.

4 cl, 12 dwg