摘要:
The invention relates to a clamping device (01) for use on a lathe, comprising a plurality of basic clamping supports (06), which can be moved in a stellar formation in relation to an axis of rotation and on each of which a clamping jaw (11) for clamping workpieces can be attached, wherein the basic clamping supports (06) can be adjusted simultaneously by means of an adjusting drive (21, 36) of the clamping device (01). According to the invention, at least two basic clamping supports (06) are coupled directly or indirectly to one another by means of an outer rocker (15), wherein, at least in the middle of the adjusting path, a limited inward movement of a basic clamping support (06a, 06c, or 06b, 06d) leads to a pivoting of the outer rocker (15a, 15c) and an outward movement of the other coupled basic clamping support (06b, 06d, or 06a, 06c).
摘要:
A method of machining a workpiece is provided that is capable of forming a fresh air inlet in an arbitrary position in an outer shell of a container. According to the present invention, a method of machining a workpiece is provided that includes: machining to form a round hole in a workpiece using a boring drill having a tubular end portion, the end portion provided with a flat surface and a notch, and having a blade on a side of the notch, by pressing the flat surface against the workpiece while rotating the drill to contact the blade with the workpiece.
摘要:
A group of fixtures for thin-walled shell/cylindrical components (10) while they are being machined internally and externally, has a mounting base (1 ) having mounting holes, positioning pins and clamps to locate one end of the thin-walled component. A supporting arbour or cylinder (5) is fixed in the base. A circular lid (12) is fixed to the supporting arbour or cylinder and has a wedged step to locate the other end of the cylindrical component for internal and external machining, or the major open end of shell component for internal machining. A pair of modified vehicle wheel inner tubes (8) are disposed around the supporting arbour or cylinder. A multi-layered sacrificial liner (7) surrounds the pressure element and is adapted to fit between it and the thin-walled components. When properly inflated according to the design and validation procedure, the fixture adaptively holds the thin-walled components for machining, with sufficient supporting rigidity and dynamic stability, so as to maintain the machining precision and surface finish to an acceptable engineering standard. Furthermore, a reasonable and practical design and validation procedure is supplied, easily adapted to different sized thin-walled shell/cylindrical components.
摘要:
Ein Verfahren zum spanenden Bearbeiten mindestens eines schlanken, insbesondere geschmiedeten Werkstücks (15), in das entlang einer Längsachse durch Tieflochbohren eine Zentralbohrung (18) und in mindestens einen seitlich vorstehenden Anschlussnippel (17) eine Anschlussbohrung (19) eingebracht werden, ist so ausgebildet, dass in das Werkstück (15) in einer einzigen Einspannposition sowohl die Zentralbohrung (18) wie auch die Anschlussbohrung (19) gebohrt werden
摘要:
A lathe machining member is provided that, when a rare and expensive material is used as a raw material for forming a machined product, is capable of reducing waste of such material and reducing costs. For this purpose, a cylindrical core portion (3), at least a part of which is made of a noble metal alloy and which has a diameter larger than a maximum diameter of a shape obtained by lathe machining, and a hollow-cylindrical peripheral portion (2), which is made of a material different from the material of the core portion (3), are included. The core portion (3) is arranged in a hollow portion of the peripheral portion (2) with no space. The material applied to the peripheral portion (2) is a free-cutting material selected from a group of, for example, free-cutting brass, free-cutting phosphor bronze, free cutting nickel silver, and free-cutting beryllium copper. The noble metal alloy applied to the core portion (3) is, for example, alloy mainly consisting of silver (Ag), palladium (Pd), gold (Au), platinum (Pt), zinc (Zn), copper (Cu), iron (Fe), and nickel (Ni), alloy mainly consisting of palladium, silver, and copper, or alloy mainly consisting of silver, platinum, zinc, gold, and copper.
摘要:
A group of fixtures for thin-walled shell/cylindrical components (10) while they are being machined internally and externally, has a mounting base (1 ) having mounting holes, positioning pins and clamps to locate one end of the thin-walled component. A supporting arbour or cylinder (5) is fixed in the base. A circular lid (12) is fixed to the supporting arbour or cylinder and has a wedged step to locate the other end of the cylindrical component for internal and external machining, or the major open end of shell component for internal machining. A pair of modified vehicle wheel inner tubes (8) are disposed around the supporting arbour or cylinder. A multi-layered sacrificial liner (7) surrounds the pressure element and is adapted to fit between it and the thin-walled components. When properly inflated according to the design and validation procedure, the fixture adaptively holds the thin-walled components for machining, with sufficient supporting rigidity and dynamic stability, so as to maintain the machining precision and surface finish to an acceptable engineering standard. Furthermore, a reasonable and practical design and validation procedure is supplied, easily adapted to different sized thin-walled shell/cylindrical components.
摘要:
A method which is able to, without using a chattering vibration preventing retainer, cut a thin-walled member without causing chattering vibration. A method of cutting a thin-walled material performs the following: (A) prepares a material 5 having much stock for obtaining a thin-walled material 3, (B) while rotating the material 5 about a center axis C1, cuts the inner round surface 3a of the material 5 by a desired distance within a predetermined range by feeding a cutting tool relative to the material 5 by the desired distance from the one end side to the other end side of the material along the center axis C1, (C) while rotating the material 5 about the center axis C1, cuts the outer round surface 3b of the material 5 by a desired distance within a predetermined range by feeding the cutting tool relative to the material 5 by the desired distance from the one end side to the other end side of the material along the center axis C1, and (D) alternately repeats (B) and (C) to finish the predetermined ranges of the inner round surface 3a and the outer round surface 3b.
摘要:
A method which is able to, without using a chattering vibration preventing retainer, cut a thin-walled member without causing chattering vibration. A method of cutting a thin-walled material performs the following: (A) prepares a material 5 having much stock for obtaining a thin-walled material 3, (B) while rotating the material 5 about a center axis C1, cuts the inner round surface 3a of the material 5 by a desired distance within a predetermined range by feeding a cutting tool relative to the material 5 by the desired distance from the one end side to the other end side of the material along the center axis C1, (C) while rotating the material 5 about the center axis C1, cuts the outer round surface 3b of the material 5 by a desired distance within a predetermined range by feeding the cutting tool relative to the material 5 by the desired distance from the one end side to the other end side of the material along the center axis C1, and (D) alternately repeats (B) and (C) to finish the predetermined ranges of the inner round surface 3a and the outer round surface 3b.