SINE BLOCK TAPER TESTING FIXTURES
NO. 9122 SERIES
|Sine Block Taper Testing Fixtures are
designed especially for precise inspection of tapers machined on centers. Tapered work is
mounted between the center, the Sine Block base elevated by gage blocks is one-half the
included angle, and the work is then indicated at both ends to determine the accuracy of
Taper Testing Fixtures combine a special 20" Sine Block with a pair of identical center heads that may be positioned anywhere along a t-slot running the length of the block and locked in place or removed entirely to free the Sine Block for general purpose angle checking. Used in the horizontal plane, a Taper Testing Fixture becomes an extremely accurate Bench Centers. The hardened and ground tool steel centers are lapped for precision fit in the heads and may be locked by turning a knurled knob on each center head assembly.
The surface plate supplied with Sine Block Taper Testing Fixture is No. 9211, hand-scraped cast iron, described under the 3-Axis Reference Square. The 20" Fixture takes a 14" x 24" size. The surface plate is equipped with an end stop that may be clamped in any one of three positions along one end of the surface plate.
For the inspector's convenience, surface plates for Sine Block Taper Testing Fixtures are equipped with a handy three-position end stop.
Sine Blocks are made of high quality alloy steel, scientifically heat treated for maximum stability and wear resistance, and precision ground on all working surfaces. Sine rolls are manufactured of tool steel, ground and lapped. Center Heads are made of seasoned cast iron, machined in pairs for accurate alignment of centers. When mounted on the Sine Block , the centers are parallel to the sine rolls within 0.0002" and parallel to the sides of the Sine Block within 0.0005".
For the inspector's convenience, surface
plates for Sine Block Taper Testing Fixtures are equipped with a handy three-position end
TOLERANCES: Taft-Peirce Sine Block
|Working Surface||Sine Rolls|
|Size (center distance)||Flat, square with sides and parallel within||Alike, round and straight within||Parallel with each other and with working surface within||Located at nominal center distance within plus or minus|
The recommended surface plate will be furnished with each Sine Block Taper Testing Fixture unless otherwise specified.
|Style No.||Overall Dimensions||Center Distance of Sine Rolls||Maximum Work Capacity||Approximate Weight||Price|
* No sine plate is included
with this model.
NOTE: See the how to set up sine angle equipment section for exact information.
Setting constants and multipliers are available in Bulletin #818 @ $2.00.
4141 N. Atlantic Blvd., Auburn Hills, MI 48326
Phone: (248) 391-9100 Fax: (248) 391-7462