摘要:
A reference point on a table center of an inclined rotating table in a wire electric discharge machine is obtained using a measuring jig. A biaxial rotation unit is placed on a table of the wire electric discharge machine. The measuring jig has a shape most suitable for reference point measurement using a contact sensing function of a wire electrode which a wire electric discharge machine generally has and includes a fixed section for being fixed to a work fixing section of the biaxial rotation unit, an arm section which is provided to stand on the fixed section, and a section to be measured which is provided at a distal end of the arm section and has a conductive spherical surface.
摘要:
A device for checking dimensions of machine parts or the like, consisting of a dual inter-dependent keyed linear structures having inter-connected operating elements to maintain the unique multiple gage stack feature of my U.S. Pat. No. 3,180,029 with the use of much smaller gage blocks, to accommodate an extra large micrometer thimble graduated about its circumference to one hundred thousandths in ten thousandths of an inch, permitting when the micrometer screw thread is 10 threads to an inch to obtain a reading within one turn of the thimble when the one hundred thousandths gage blocks are utilized and within ten turns when the one inch gage blocks are used. A scriber setting mechanism is incorporated to allow the setting of a scriber, that is secured in a standard height gage, to a required height by utilizing the spring loaded scriber setting arms instead of the spring loaded dial indicator point that would be held in another standard height gage. Although the gage stack and scriber setting unit is extended the micrometer thimble remains within easy reach for comfortable manipulation.
摘要:
A window measurement apparatus for measuring bay windows spaces. The window measurement apparatus comprises an extendable rod member and various attachable end plates. The extendable rod member has a first rod section slidably nested in a second rod section, which itself is slidably nested in a third rod section, thereby enabling the extendable rod member to telescopically extend and retract longitudinally between a fully extended position and a fully retracted position. Each end of the extendable rod member includes an end plug that has a fastener hole for receiving a conventional elongated fastener, thereby enabling any one of the attachable end plates can be attached to the ends of the extendable rod member.
摘要:
A reference point on a table center of an inclined rotating table in a wire electric discharge machine is obtained using a measuring jig. A biaxial rotation unit is placed on a table of the wire electric discharge machine. The measuring jig has a shape most suitable for reference point measurement using a contact sensing function of a wire electrode which a wire electric discharge machine generally has and includes a fixed section for being fixed to a work fixing section of the biaxial rotation unit, an arm section which is provided to stand on the fixed section, and a section to be measured which is provided at a distal end of the arm section and has a conductive spherical surface.
摘要:
A roundness calibration device includes a ring or plug gauge with a wall defining an arcuate surface traversable by a sensing probe. A protuberance, typically in the form of a piston, is displaceably mounted in a radial bore in the wall. A displacement device adjusts the amount of protrusion of said protuberance to locally, radially modify the arcuate surface. A calibrated measuring device accurately determines the amount of protrusion.