Tapping Attachments

T - Twin Chucking Feature : The both set of jaws (Triangular(4) and Square JAWS(5)) are being actuated by the use of handle (43) at the same time. The two set of jaws move independently of each other. When clamping the Tap, please observe that the Square of the tap is not inserted across the corners of the square jaw set. Small taps, where square is shorter than the height of the Square jaw set (8.00mm) must be pulled some what out before clamping.

 

The Twin Chucking Mechanism provides high clamping power, therefore light clamping with handle is required. Do not give excessive force with handle as it is not necessary.

S - Safety Clutch : To adjust the torque, the torque adjusting sleeve (17) is being moved downward in to the direction of the floating piece and is then set to scale by turning the sleeve. The safety clutch disengages when the preset torque is exceeded. After disengagement there is almost no torque on the tap. While reversing the spindle the clutch is re-engaged and the tap is automatically turned out of the thread. The clutch is suitable for the constant bottoming of the tap. Due to the small remaining torque on the tap there is practically no wear on the clutch and thus re adjustment is rarely required. The standard tapping attachments are suitable for right handed threads only. However the clutch also operates during left handed operation but this increases the torque by approximately 100%. The clutch then works on the principle of an over roll clutch, hence we do not recommend the right handed attachment for left handed threads.

F - Float Radial Parallel : To compensate the misalignment between tap and component in order to cut threads to exact tolerance and to protect the tap. Automatic centering actions after each tapping operation. No time consuming alignment of tap with center of hole. The plane-parallel guidance and the centering of the floating head is effected by steel balls.

L - Length Compensation : The length compensation working on compression and expansion, is exactly positioned in a Zero-position and is thus suited to tap to exact depth when under machine feed. The compression spring (32) is stronger than the one for expansion (33). If during machine feed, the feed cannot be adjusted exactly to the pitch of the tap, we suggest to adjust 10% smaller than the tap pitch. The ball sleeve (42) is located between shank (20) and clutch housing (16). This ball sleeve assures even under high torques a very light compensation in axial direction. This free axial movement prevents damage to thread flanks if the feed is not exact.

 

Application :

For tapping operations on reversible drilling & tapping machines, lathe, capstan, etc. this tapping attachment is suitable for right hand threads only. For left hand threads on request.

 

Features :

Wide range twin chucking head for the direct clamping of taps. No need of separate collets. Adjustable safety torque clutch for the preventation of tap breakage. Radial parallel float to compensate for misalignment between hole & tap. Length compensation acting on compression & expansion to compensate difference between machine feed & tap pitch. Unit is lubricate with Molyoil.

 

Recommendation :

Use direct cutting oil for tapping operation and not water soluble oil.