A kind of self-shield medicine core iron axle expansion mechanism
Technical field
The utility model belongs to wlding technical field, particularly kind of self-shield medicine core iron axle expansion mechanism.
Background technology
Self-protection flux-cored wire with iron axle layer around time, because iron axle is too thin and shape is very irregular, need expansion mechanism be had.When common form is upper axle, screw thread locknut locking cone shape expansion core removes expansion taper expansion set.By the locknut that unscrews, expansion core, expansion set are separated again when unloading axle, complicated operation.
Summary of the invention
In order to solve existing technical problem, the technical scheme that the utility model provides is:
A kind of self-shield medicine core iron axle expansion mechanism, by chuck, expansion core, expansion block forms, and chuck has four slideways, expansion block is connected with branch slideway, and expansion core is fixed in expansion block, and expansion core is concaveconvex structure, is concavo-convexly distributed as 1 ~ 3:1; Protuberance and expansion block contact surface area are 400 ~ 2000mm
2.
Further, mounting limit bolt in expansion core.
The utility model only need be twisted 45 degree and be got final product swelling, relaxation exercise expansion block.Expansion core anglec of rotation limited location bolt limits, and expansion block is connected with branch slideway, can easily slide.Realize quick upper axle, unload axle.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation
Fig. 2 is chuck structure schematic diagram
Fig. 3 is chuck, expansion block assembling schematic diagram
1, chuck 2, expansion block 3, expansion core
Detailed description of the invention
Embodiment 1:
A kind of self-shield medicine core iron axle expansion mechanism, by chuck 1, expansion core 3, expansion block 2 forms, and chuck 1 has four slideways, expansion block 2 is connected with slideway with chuck 1, and expansion core 3 is fixed in expansion block 2, and expansion core 3 is concaveconvex structure, is concavo-convexly distributed as 1 ~ 3:1; Protuberance and expansion block contact surface area are 400 ~ 2000mm
2.
Further, mounting limit bolt in expansion core.
The utility model is not limited to above-mentioned preferred forms, anyone other any or akin products identical with the present invention drawn under enlightenment of the present utility model, all drops within protection scope of the present invention.