Alloy Screwdriver Tap Installation, Punching Off and Unscrewing
1、Installation
In general, a manual installation spanner should be used to install the wire sleeve. Wire nut into the installation spanner, rotate the mandrel so that the wire nut through the installation of the spanner on the guide threads screwed into the bottom hole, and make it from the surface of the substrate to leave 0.75 ~ 1.5P of the empty thread. It should be noted that, when the screw sleeve from the screw sleeve spanner sleeve guide threads into the workpiece threaded hole, if you feel the sinking feeling, you can hold the spanner lever does not move, the wrench sleeve counterclockwise rotation of 30 degrees, and then rotate the spanner lever for installation.
A small number of installation of steel wire nut and M14 × 2 or more coarse threaded steel wire nut installation, you can use the "T" type slotted or threaded head of the simple tool installation. And be careful not to apply large axial force on the steel wire nut installation handle to prevent "chaotic buckle". In the assembly line assembly or the requirement of rapid installation of steel wire nut case, the use of electric or pneumatic semi-automatic installation spanner, in order to obtain fast, reliable installation. After the installation of the steel wire nut, the corresponding steel wire nut bottom hole plug gauge, test the standard internal threaded hole formed by the accuracy level.
2、Punching off
Through-hole, the need to punch off the wire nut installation handle, general use of punch off the installation of shank alignment, with 200g or so of the hammer can be removed by hitting, for ST18X2.5 above the coarse threaded nut and ST14X1.25 above the fine threaded nut, it is recommended that the use of sharp-nosed pliers up and down to bend the installation of the shank to remove.
According to the structural requirements of the need to remove the mounting shank of the wire nut, the use of steel wire nut with a broken groove. Generally for through holes and screw holes processing depth is limited, the screw twisted into the screw hole may be beyond the end of the steel wire screw sleeve need to remove the installation of the shank, in order to ensure that the screw can be successfully passed through the steel wire screw sleeve.
For blind holes, screw holes can be processed deeper, choose a longer steel wire nut, screw tightening, the end of the screw will not touch the installation of the steel wire nut shank, you can not remove the installation of the shank, at this time, the steel wire nut should be used without breaking the groove.
Wire screw set to handle tools can be very simple, as long as a slightly smaller than the inner diameter of the wire screw set of screw holes in the heart of the rod, inserted into the screw holes, the end of the top of the installation of the handle, with a hammer to hit the other end, the installation of the handle will break from the broken groove at the break off.
The broken mounting handle should be removed from the screw hole.
After removing the shank, the end of the wire threaded sleeve should not be detached from the groove of the internal threads, should not be deformed, and the end should not have a burr. Through the end of the thread plug gauge or screw can pass through the entire steel wire nut that is to indicate that the end of all is normal.
With the ordinary punching off the installation handle, the punch end of the punch off into the threaded hole has been installed into the wire nut, the punch end of the punch off against the installation handle of the steel wire nut, the other end of the hammer to hit the appropriate punching off the other end of the punch off, so that the installation of the handle is complete off.
When using the automatic punching off device to punch off the mounting handle, the automatic punching off device punch end into the threaded hole has been installed into the steel wire threaded holes, hold down the handle of the automatic punching off device by hand to apply axial force, when you hear the "click" sound, indicating that the mounting handle has been broken.
3、Unloading
For improper operation caused by the screw set buckle need to remove the steel wire screw set, can be used to unload the set into the steel wire screw set bore, against the handle with a hammer to hit a hammer, with a hand downward force to hold down the handle of the anti-thread rotation can be removed from the steel wire screw set.
Extractor, (Extracting Tool) also known as the steel wire nut removal tool, steel wire nut special tool to take out the nut, screw sleeve remover. Used to take out the installed steel wire nut, generally appear in the following cases: 1, steel wire nut specifications selection error, 2, steel wire nut installation mess buckle, 3, steel wire nut installation is not in place, 4, steel wire nut installation handle broken, 5 steel wire nut used for a long time, the screw hole has been damaged.
The use of unloader: with the edge of the unloader vertically into the threaded hole formed by the steel wire screw set, aligned with the handle, with a hammer hit (according to the size of the specifications of the screw set, the strength of the blow to be moderate) and apply axial force to make the unloader edge firmly stuck in the steel wire screw set, the anti-thread direction of rotation of unloading the device, which led to the spinning out of the steel wire screw set, so that the dismantling of the steel wire screw set will not damage the bottom hole internal threads.
