Innovative Tool Sales

Bilz Tool Company

The Global Leader in Quick Change Toolholders for the Metal Working Industry.

Tapping

Modern CNC machines with their synchronization of feed and rotational speeds enable threads to be machined without requiring a compensating chuck. In practice, however, it has been shown that synchronization errors occur, especially during the necessary rotational direction change of the machine spindle.

When using rigidly clamped taps, this error can lead to increased flank pressure which in turn reduces the operating life of the tap and the quality of the thread.

Bilz synchro chucks compensate this synchronization error with their sophisticated technology. They are suitable for both standard and custom with best thread quality and tap life.

The most recent development in synchronous tapping is the clamping of carbide taps in specially designed ThermoGrip® shrinking adaptors. The minimal axial movement with double-ended travelstop cushioning compensates synchronization errors. Precise cutting start by the tap is guaranteed, even under difficult conditions.

WFLC-WFLC K - quick change tapping chucks

A new concept in tapping and cold forming of threads.

The Bilz range of WFLC and WFLC K tapping systems, with extension and compression, are designed for use on both manual and numerically controlled machines.

The new concept is characterized by the asymmetric arrangement of the balls which results in the optimum distribution of force, thus making the length compensation superior to previous systems, which, when combined with a stiff initial cutting pressure, ensure accuracy and effective operation under the most difficult of machining conditions.

The length compensation is unaffected by the hydrostatic neutral coolant feed, and the WFLC K chuck is designed to operate with internal coolant up to 50 bar pressure. The changing of tap adaptors is effected simple and effective and does not affect the systems of the chuck.

Because of its modular shank system, and by utilizing the Bilz WA toolholder, it is possible to use the Bilz WFLC on numerous machine configurations.

Both the WFLC and WFLC K tapping systems are maintenance free and therefore maintain a high level of long term efficiency.

Tapping and thread forming on transfer lines and special purpose machine.

BILZ WFLP-WF chucks are designed for multi-spindle tapping applications, and are used in conjunction with the WES-WE range of tap adaptors, the system is also available with coolant feed. The system is designed for rapid and easy adaptor change, which are automatically locked in position on their insertion into the chuck.

The length compensation on extension and compression allows for any fluctuations which may occur between the spindle feed and the thread pitch, thus allowing multi-spindle tapping with varying pitches possible, without the need to balance revolutions and feed rates.

The ratio of compression and extension can be chosen to suit varying requirements. The self centering float mechanism, facilitates any misalignment of > 0,2 mm, between the machine spindle axis and cored holes in the component.

The Bilz WFLP and WFL systems with integral High Frequency transmitters are available as a HF tool control system for tapping and monitoring of internal threads.

A full range of literature is available on this facility, please ask for literature on the “HF Tool Control System”. WFLP-WF chucks with internal coolant feed are available on request.

HFP - quick change tapping chucks

HFP- the safest method of wireless monitoring for multispindle tapping is now even more safe.

Together with the Bilz Quick Change Chucks and adaptors the HFP system can securely monitor the right hand rotation as well as the left hand rotation.

The high frequency transmitter integrated in the chuck reacts on the length compensation of the chuck which is pressed together while the safety clutch is engaging in the right hand direction and which is pulled out in the left hand direction.

The released signal is transmitted over the antenna to the HF receiver and than used for stopping the machine. To secure a safe signal also under difficult conditions for example while the the tapping chuck is in the workpiece or in the device, the HF transmitter pulses the signal for 5 sec. The position of the chuck changes in this time while driving back in start position and the HF signal reaches the receiver securely.

The effective monitoring of the right hand rotation and the pulsing of the signal after initializing the tapping operation means that malfunctions are detected immediately. Scrap or expensive subsequent machining will be avoided with this system.

By using the quality combination of Bilz tap adaptors and Bilz tap chucks, tool changing times can be minimized. On transfer lines and special application machines where down time costs are high, these efficiencies represent significant savings.

The adaptors are designed for optimum efficiency. Removal and replacement in the chuck is rapid and the location and locking of the tap in the adaptor is simple and effective.

In all cases the drive of the tap is through the square, with the tap shank being held in position by a quick locking mechanism.

Adaptors with length adjustment are available for setting off the machine, extended length adaptors are available for areas of difficult access, and the highly popular, adjustable safety clutch adaptor, facilitates the avoidance of tap breakage.

In all cases, a different adaptor is required for each size tap shank.

Adaptors for other applications, such as those for accepting collets, and dies for external threads, or for increased shank or reduction facility complete this range.

GNCN-GNCK - tapping attachments.

High performance tapping attachments with integral reversing gear.

BILZ tapping attachments are of modular design and can therefore meet the specific requirements of individual machines. They can be used on machining centers with automatic tool changers and on special purpose machines.

Because of the integrated maintenance free reversing gear, changes in direction of the machine spindle are unnecessary.

The length compensation on extension, with a ball release system which operates when in reverse, guarantees thread depths of 60,15 mm up to a speed of 4000 rpm. The GNCK tapping unit with coolant feed, can facilitate pressures up to a maximum of 50 bar.

Precision collets ensure that the tap is securely clamped, and additional square drivers can be utilized where high torque is being generated, for example, when thread forming.

The torque support locks the unit relative to the spindle, thus making automatic tool changing possible. When tool changing takes place, the locking mechanism releases the torque support and allows the tool changing operation to be effected.

Because of the use of the reversing gears, high tapping speeds are possible resulting in significantly shorter cycle times compared to conventional tapping.

This self reversing tapping attachment is designed for use on drilling machines which have only manual feed facilities and which do not have a reversible spindle.

The tool design is simple, effective, and is virtually maintenance free. The unit is fitted into the machine spindle by virtue of its morse taper shank, with the stop arm located against the column of the drilling machine to ensure effective and positive action. The design of the units is such that it can be used for either right or left handed tapping operations.

The design of the unit is such that tapping and reversing is possible without changing the direction of the machine spindle.

The unit automatically changes direction when the required thread depth has been achieved.

The unit accepts both Bilz-WE and WES tap adaptors which facilitate quick tap change, a separate tap adaptor is required for each size of tap shank.

The use of WES tap adaptors gives additional security against tap breakage by means of the clutch mechanism.

DSPL-D - tapping chucks.

Tapping Chuck for use on drilling and tapping machines.

The tap is securely clamped on both the shank and square using a double clamping system. The wide clamping range of this unit is operated by using a key on the rectangular head adjustment screw within the body of the unit.

The adjustable safety clutch prevents tap breakage and the torque system ensures minimum wear on the clutch. The tap is automatically locked on return after the clutch has slipped.

The floating system employed compensates for any misalignment that may occur between the tap and the hole in the workpiece.

The length compensation acts on tension and compression to compensate for any pitch variation between the machine and the tapping chuck, the unit can be used on machines with both manual and automatic feed, through the built-in exact zero-position.