Flatness, such as the flatness of the tabletop of a vertical machining center, refers to the condition where a surface is perfectly even. The measurement methods include the plate method, the plate and indicator method, the flat rule method, the precision level method, and the optical method.
Straightness, which refers to the straightness of a line in a plane or in space, or the straightness of a part or motion, can be measured using several techniques. These include the flat rule and indicator method, the steel wire and microscope method, the collimating telescope method, and the laser interferometer method. For angle measurements, methods like the precision level method, the self-collimator method, and the laser interferometer method are commonly used.
Verticality, which relates to the perpendicularity of lines and planes or the verticality of motion, can be measured using tools such as the flat rule and indicator method, the square rule and indicator method, and optical methods like the self-collimator, optical square, and emitter.
Rotation involves various types of runout, including radial runout, such as the radial runout of the chuck positioning cone on the end of a CNC horizontal lathe spindle, or the radial runout of the spindle positioning hole. It also includes periodic axial turbulence, such as the periodic axial turbulence of the CNC horizontal lathe spindle, and face jump, like the face jump of the tool holder on the CNC horizontal lathe spindle.
Common measurement methods for rotation include the indicator method, the test rod and indicator method, and the steel ball and indicator method.
Coaxiality or coincidence, such as the alignment of the hole axis of the CNC horizontal lathe tool with the axis of the spindle, is an important parameter in precision machining. Parallelism, which refers to the parallelism between a line and a plane—such as the parallelism of the axis of a CNC horizontal lathe to the movement of the main carriage slide—or the parallelism between the table of a vertical machining center and the X-axis, is another critical factor. Equidistance, such as the consistent distance between the positioning hole of a vertical machining center and the table's rotational axis, is also essential.
The measurement methods for coaxiality, parallelism, and equidistance typically involve the flat rule and indicator method, the precision level method, and the indicator and test bar method. These techniques ensure accurate alignment and proper functioning of machine tools, contributing to the overall quality and performance of the manufactured components.
20V Cordless Reciprocating Saw
The Cordless Reciprocating Saw is convenient to use at anywhere, wireless power supply, Battery is rechargeable, and can be used with different Brand Battery Platform.
The 20V Cordless Reciprocating Saw Saber Saw is used to cut tree and metal tube, with cutting capacity: 100mm for wood and 8mm for soft steel.
The Cordless Saber Saw is also can be used to cut meat with Stainless Steel Blade.
The Cordless Reciprocating Saw is convenient to use at anywhere, wireless power supply, 2Ah and 4Ah Battery is rechargeable.
The Cordless Reciprocating Saw Vibration is small when cutting the wood, work with 0-2900 rpm speed, 28mm stroke length.
The Cordless Tree Cutting Power Tool with a aluminum gear box, not plastic one, for better product performance.
The Cordless Reciprocating Saw with Quick Release Chuck, for easy blade change.
BTW, the pivoting shoe is adjustable.
Cordless Reciprocating Saws,Small Cordless Reciprocating Saws,Power Reciprocating Saws,Reciprocating Saw with battery and Charger
Ningbo Brace Power Tools Co., Ltd , https://www.cnbrace.com