Punching device for wooden-door stainless steel fittings
A punching device, stainless steel technology, applied in the direction of maintenance and safety accessories, metal processing machinery parts, chucks, etc., can solve the problem of high punching efficiency, achieve high punching efficiency, not easy to be ablated and damaged, and reduce waste the effect of time
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[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but not as a basis for limiting the present invention.
[0018] Example. A kind of perforating device for wooden door stainless steel fittings, such as figure 1 As shown, a bench drill 1 is included, a chuck 2 is fixed on the main shaft of the bench drill 1, and a drill bit 3 is clamped on the chuck 2, and a cooling device 10 connected to the drill bit 3 is provided below the chuck 2, and the clamp of the chuck 2 A vertical convex rib 4 is provided on the holding surface, and a groove 5 matching the convex rib 4 is provided on the clamped surface of the drill bit 3;
[0019] The cooling device includes a circular fixed plate 101, the fixed plate 101 is axially provided with a first through hole 102, the edge of the first through hole 102 is provided with a downward first flange 103, the first flange The sidewall of limit 103 is provided with threaded ho...
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