Side and face mills
Face mill adapter
Side and face mill adapter
Side and face mill tool holders, with arbor connections, are economical alternatives for milling when the demand for tool run-out is not too high.
Weldon
Weldon tool holders are an economical alternative for milling when the demand for tool run-out is not so high.
One holder is used for each shank diameter.
Tightening torque recommendations for Weldon screws
Front clamp:
Permanent stop for new Weldon adapters
391.20
All new adapters type 391.20 manufactured from January 2002 have a permanent stop built into the holder. Stop screws are not required.
Whistle Notch
For shanks according to DIN 6535-HE
For Coromant Whistle Notch shank
Whistle notch tool holder is a universal alternative for drilling machining, when the demand for tool run-out is not too high.
One holder is used for each shank diameter.
Drill adapters for CoroDrill® 880 and Coromant Delta®
Used for cylindrical shanks with flats according to ISO 9766.
One holder is used for each shank diameter.
Adjustable holders for CoroDrill® 880
The adjustable holder is used with ISO 9766 shanks and allows manufacture of holes larger than nominal drill hole diameter specification. The working area is +.055 inch (+1.4 mm), adjustable in increments of .002 inch (0.05 mm).
Setting adjustable drill adapters
Setting is done by turning the scale ring surrounding the holder, indicating a diametrical movement of the tool. Setting of the holder can be made in a pre-setting unit, preferably one equipped with projector and electronic scanning facility. Four locking screws keep the set value in position. Before the setting procedure commences, these screws must be slackened off.
1. Initially the true nominal diameter for each drill has to be measured.
Note: The setting range of the holder exceeds the range for the CoroDrill 880. Therefore check max. range for the actual diameter in the ordering catalog.
2. Further adjustments after the basic setting can normally be performed outside the pre-setting unit by reference to the scale only. The sleeve should be removed and cleaned when it is not in use for long periods.
Assembly of adjustable drill holder and slide, sizes 1 and 2
Assembly of adjustable drill holder and slide, size 3
1. Housing
2. Slide
3. Coolant tube
4. Screws
5. Pre-clamp set
6. Pin
7. O-ring
1. Remove pre-clamp set. Clean slide (2) and housing (1) using a lint free cloth.
2. Apply a thin film of light oil on all mating surfaces.
3. Assemble slide (2) and housing (1). Make sure pin (6) on slide enters spiral groove in housing and that coolant tube (3) is correctly seated in housing and slide.
4. Tighten screws (4) cross-wise to 7-9 ft-lbs (10-12 Nm).
5. Mount preclamp set (5) and tighten them lightly.
Note: Pre-clamp sets must not be loosened when setting diameter.
Tap adapters and holders
The product range for tapping consists of:
- Synchronized tap adapter, collet type
- Tap adapter, collet type
- Tap holder with tap adapter.
Synchronized tap adapter, collet type
The adapter can be used with or without through coolant.
Use tapping collets to make the adapter more flexible to tap diameter.
Synchronized tap adapter
Note: For both synchronized adapters and collet type adapters:
- Always use a collet that fits tap dimension
- Use a torque wrench to tighten the nut.
Tap adapter, collet type (floating)
Short design for turning centers
Slim design for machining centers
Two types of adapters:
- Short design (for turning centers)
- Slim design (for machining centers).
Both adapters are used with external coolant supply.
Use tapping collets to make the adapter more flexible to tap diameter.
Tap holder with tap adapter (tension compression, metric only)
Tap holder
Tap adapter with
friction clutch (SES)
Tap adapter without
friction clutch (SE)
The tap holder is used with a tap adapter, either with (SES) or without (SE) friction clutch for torque control.
Style SES has a pre-set safety clutch that will slip when tapping torque exceeds the pre-set value.
The tap holder has through coolant; adapters can be used with external/internal coolant supply.
Dismantling of tap adapter 391.60
1. Mount the adapter in a soft-jawed vice.
2. Turn the sleeve (13) until the end of the locking ring (6) is visible. Hold it with a small screwdriver and keep turning the sleeve until the end is positioned .394 inch (10 mm) from the slot in the sleeve.
3. Place the screwdriver in the slot in the sleeve and bend out the end of the locking ring (6) while turning the sleeve (13).
4. Lever the screwdriver against the circlip and keep turning the sleeve until the circlip spirals out.
5. Remove the locking ring (6) and the sleeve (13).
6. Remove the three balls, on sizes 2-3 (11) or the clamp ring, on size 1 (11).
7. Remove screw (12), compression spring (8) and ball (7).
8. Remove the plastic plug (10) for the stop screw (9).
9. Press down on the interior of the adapter and remove the stop screw (9).
10. Pull out the inner assembly.
11. In order to replace the compression springs (2 and 3), remove the screw (14). It is important to press down the rear part of the adapter before completely loosening the screw.
Note: Compress the springs while removing screw (14), otherwise the compression spring will jump out and possibly cause an injury.
Assembly of tap adapter 391.60
1. Mount the compression springs into bush (15). First place the small spring (3) into the bush, then position the large spring (2) over the small spring.
2. Compress the springs and fasten the screw (14).
3. Align the slot for the stop screw (9) against the center line of the hole for the ball (5).
4. Identify and locate 3 smaller balls (4) and balls (5).
5. Place grease in the holes/slots of barrel (1) to retain balls.
6. Align balls (4) with slots in adapter body, with the stop screw-slot facing the stop screw-hole in the adapter body (16), and insert the inner assembly.
7. Press down and check that the slot for the stop screw is visible through the screw hole.
Adjust if necessary.
8. Press the barrel halfway down and tighten the stop screw. Loosen the screw 1/4 turn and mount the plastic plug (10).
Assembly of tap adapter 391.60
9. Check for correct location by pulling on the inner assembly.
10. Mount the balls, or clamp ring, (11) and slide the sleeve (13) into position.
11. Align the circlip grooves of the sleeve and inner assembly. Place the circlip into the grooves (make sure the ends are free from burrs). Turn the sleeves (13) while pushing the circlip down to make it enter.
12. Press the circlip (6) with a screwdriver against the groove in the sleeve and continue turning the sleeve until the circlip is in place.
13. Assemble the initial compression device. First insert the ball (7), then compression spring (8) and finally fasten the screw (12).
14. Adjust initial pressure by compressing the spring (8) with screw (12). Check the pressure by pressing down on the adapter.
Maintenance
TTap adapters should be inspected regularly for damage. At that time, they should be cleaned and lubricated.
Special checks should be made for cracks or scoring in the housing, and for damage to the screw.