A compound sine vise is a mechanical devise that is a combination of a compound sine plate and a vise. Basically, the compound sine plate is a few metal plates placed one over another and are attached to each other by axis. By axis installed in different directions, the plate is able to be pulled up and provide the top surface a variety of angles. A vise is a mechanical apparatus used to secure an object to allow work to be performed on it. Vises have two parallel jaws, one fixed and the other movable, threaded in and out by a screw and lever. When the vise is placed and combined with the compound sine plate, the compound sine vise is able to work with any mechanical work that has a tricky angle to work with.
When setting compound angles, it is necessary to compensate for the first angle set in order to correctly set the second angle. To set the angles on a compound sine plate, the user must first determine the top plate center distance of the devise, the bottom plate center distance, the workpiece angles the user wishes to set and whether the angles are in degrees minutes seconds or decimal degrees.
Next, enter the information in a angle calculator for compound sine vises, which can be found on many internet pages online. Use a decimal point for the separator, whether the angle is in degrees-minutes-seconds or decimal degrees. Hit the 'Calculate' button and then assemble the stacks of gage blocks to equal the size that is returned. The units of the stack will match the units of the center distance. If the user enters the center distance as 5 for 5 inches, the gage block stack will also be in inches. The compound sine plate will then be set to obtain the desired angles in their respective planes on the workplace.
Then moving onto the vise. First, attach a vise securely. Place bolts in all the holes in the base of the vise. Use lock washers under the nuts. Mount a vise so that the stationary jaw projects slightly beyond the edge of the plate. This allows long work to be clamped in the vise without interference from the edge of the compound sine plate. Ensure that the compound sine plate is firmly secured to its base. Check the vise for cracks or other damage before clamping a workpiece in it. Use a vise large enough to hold the work without strain.
Place the workpiece in the vise so that the full clamping surface of the jaw supports the workpiece. Keep the workpiece in the vise close as possible to the jaws to prevent vibration when sawing, filing, or other working process. Support the end of extra long work with an adjustable stand, saw horse, or box rather than putting extra strain on the vise. Keep all threaded and moving parts clean, oiled and free of chips and dirt. Use jaw liners in a vise where there is any possibility of marking the work. Replace a bent handle and worn jaw inserts.
A precision compound sine vise has an adjustable sine openings design for simple operation, high precision and robust. It is equipped with a rotary handle that is easy for any user to grip. The user can adjust a variety of angles with adjustable block for precision grinding. The material of a precision compound sine vise is SKS 3 steel.
This type of material is high carbon steel that has quenching and tempering before process. The heat treatment process is to achieve maximum toughness and ductility at a specified hardness and strength. The hardness falls in HRC58°~60°, while cooling treatment falls to -185°C. A precision compound vise enables users to work with detailed and precise angles, and is a long lasting and durable vise option.
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