Domestic winding tail hook torsional spring common plane is a straight spring coiling machine.
It adopt gear rack mechanism, feeding way is given to institutions, reciprocating one-way form a core winding coil spring, the pitch control depends on the vertical direction of the pole by CAM.
Cut off the agency is also controlled by the CAM, this kind of machine can only make simple torsional spring, homebred model is Z56 -
25.
Can only produce wire diameter in 2.
5 mm below the torsional spring.
to make snap ring use the machine according to bending machine, in the form of transfer, wire through feeding into the mold, then through a series of fixtures will bend the wire into the required shape.
This kind of machine tool is the key to the mould design and manufacturing, must Ba when changing varieties should be replaced mould and tool, etc.
Adjust the required for a long time.
special-shaped spring forming machine is usually refers to the production of various kinds of extension spring, torsion spring and all kinds of snap ring and other elastic element forming equipment.
This kind of machine the complexity of the higher than rolling
compression spring spring coiling machine, also known as transfer machine tools.
make a special-shaped spring:
generally is spiral line, and then the breakpoint tangent to draw a circle, build a plane scanning with respect to ok, if you want to spiral is change, below have draft Angle and outline.
Draft Angle is the Angle of input, contour is to draw a curve for your reference, in the sketch drawing can be, and rule curve, is the change of pitch,
in the convex screw compression special-shaped spring due to the small spring ring on both ends can be embedded into the circle in the middle, and so the larger deformation can be obtained.
For example, some of the convex type auto brake spring, and has been in a tight state at ordinary times, open the car valve, spring back deformation, drives the brake of automobile brake.
Haircut convex pusher is also used in helical spring this characteristic, the effective space to obtain larger deformation and stress.
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