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JP2008302380 |
To provide a method for bending a pipe, which method can improve the accuracy of the profile of a product when a high strength steel pipe is bent by being pressed to a single bending angle.When the high strength steel pipe 10 is bent by ...
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JP2008302377 |
To provide a method and apparatus for bending a metallic pipe by which the dispersion of bending angles after the bending can be reduced to enhance the yield of products and the working production efficiency even when the wall thickness ...
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JP2008296286 |
To provide a method and apparatus (1, 31) for fabricating a three-dimensional body, especially a method and apparatus (1, 31) for fabricating a three-dimensional beam material (5).A method for fabricating a three-dimensional body is an e...
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JP2008296244 |
To provide an apparatus for working a steel rod, which apparatus can easily form products having various shapes and sizes.The apparatus for working the steel rod comprises a steel rod feeding mechanism 10 for feeding the steel rod 1, and...
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JP2008290110 |
To provide a tube bending device capable of bending a tube with high accuracy.The tube bending device includes: a rotary piece disposed at a specified position of a frame; a clamp device for holding a work on the rotary piece; a work pre...
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JP2008284603 |
To provide a multi-purpose bending machine for fabrication of corrugated steel sheet panel to be applied to an arch-shaped pipe house or the like.(1) A corrugated belt A4 is installed on driven rollers 1, rollers A2 and rollers B3 arrang...
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JP2008272798 |
To provide an apparatus for manufacturing an independent-type truss which can automatically correspond to the change of the pitch of a lattice streak and/or the whole length of a truss.This manufacturing apparatus includes; a bending dev...
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JP2008264840 |
To provide the bending technique of a metallic tube which is provided with clamping technique by which dirturbance is not caused even when raising clamping force to the very limit of the yield strength of steel.In a device 20 for bending...
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JP2008266694 |
To provide a plastic working apparatus which can prevent the quality of a workpiece from degrading due to the oxidation of the surface and the like and simultaneously can give a desired heat treatment effect to the surface of the workpie...
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JP2008246504 |
To provide a pipe bender in which any step difference is hardly caused between a wiper and a bending die, and which high wear resistance, fcan be securely used for pipes of various materials, is very long in service life and is unnecessa...
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JP2008238250 |
To provide a long shape bending apparatus capable of bending even a highly rigid shape by reducing the size of the device and the occupied area required for installation.Both ends of a shape W are held by end lower dies 9, 10 and end upp...
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JP2008229683 |
To provide a bending apparatus with a cutting mechanism, which can prevent bending of a workpiece during cutting.This bending apparatus is provided with a support mechanism 7 constructed so as to support, in a mounted state, a linear par...
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JP2008229643 |
To provide a pipe bending method capable of achieving the same target bend angle without trial and errors even when the material characteristic of a pipe is dispersed, and a pipe bending device suitable for performing the method.The pres...
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JP2008221336 |
To continuously change the gripping force acting on workpieces.A housing (5) supporting a couple of gripping claws (6) capable of pivoting about rotational shafts (7) is displaceably supported by a guiding body (4). A rod (10) is displac...
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JP2008188675 |
To provide a bending machine for bending a lengthy workpiece fed from a magazine.Two bending robots 20 are arranged on common guide ways 25 attached at the center of a base supporting body and within an operating area of the robots so th...
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JP2008183574 |
To provide a method for bending a tubular material, which method can achieve a bent tube having no crack and wrinkle at bent portions, etc.In the method for bending the tubular material, mandrels 5 having quarter spherical projections at...
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JP2008173650 |
To provide an elbow product with necks which is excellent in dimensional property regardless of a neck length by suppressing the occurrence of an ellipse and thickness deviation over the entire length of a neck part and a bent part.This ...
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JP2008173683 |
To provide an economical bending device for a bar material, which is smaller and lighter than a device based on a traditional technique.The bending device comprises a forming shoe with a saddle for holding a work on the starting point si...
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JP2008173648 |
To provide an elbow which can cause the small reduction of the thickness on the outer peripheral portion of a bent portion, and can suppress the generation of wrinkles on the inner peripheral side of the bent portion irrespective of the ...
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JP2008161914 |
To provide a bent product which has a small radius without cracks and wrinkles in the designed surface part where becomes an appearance design and to provide a bending method and a bending device which are suitable to this small radius b...
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JP2008161922 |
To provide the multistage piling and bending method of a finned serpentine tube by which bending operation is more stabilized by preventing the deformation and vibration of the finned serpentine tube.When finishing bending work of the fi...
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JP2008155250 |
To provide a bending device capable of improving bending accuracy.In the bending device, 1 represents a sheet-like steel material, 2 represents an induction heating coil, 30 represents a feed mechanism for feeding a material to be bent i...
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JP2008149344 |
To propose a new device and a method for bending a tubular member by which a desired bent shape is obtained without using a core bar in press forming.This invention relates to a device 1 for bending a tubular member with which a product ...
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JP2008149370 |
To provide a method of bending flanged pipes by which the pipes are accurately bent without scratching the pipe and a flange so that the length L of a straight pipe part from the back face of the flange to the starting point of bending i...
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JP2008146570 |
To provide a processing data generation device and a processing data generation method, which can output processing data only by inputting the coordinate data.Processing data can be generated, by inputting coordinate data of a start poin...
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JP2008142718 |
To provide a stretch bending machine which can improve the working efficiency of its adjusting work, and also can accurately detect the generating timing of abnormal pressure to be generated in a hydraulic cylinder.The measuring portion ...
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JP2008126268 |
To provide a method and a device for bending a hair-pin tube capable of producing hair-pin steel tubes of the number twice that of a conventional value in one bending work by a bender unit by feeding tubes of the number twice that of tub...
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JP2008093687 |
To provide a method for bending a steel pipe, which method can form the steel pipe having high dimensional accuracy by reducing the spring-back of the steel pipe after bending work and further to provide apparatus therefor.In a stretch b...
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JP2008087067 |
To provide a method of working by which press working for forming a flat surface in a straight part of a metallic pipe can be applied by utilizing a draw type pipe bender.This method is a method of working the metallic pipe 8 for applyin...
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JP2008073750 |
To provide a bending method and a bending device for a long product where, as a long product is passed from a fixed die through a movable die, the movable die is moved, thus the long product is pressurized, so as to be bent into a prescr...
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JP2008068265 |
To provide an apparatus for bending a pipe, which suppresses the crush of a bent portion, and also continuously carries out bending work and cutting work into arbitrary lengths.The apparatus for bending the pipe comprises: a pair of supp...
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JP2008043963 |
To provide an apparatus and a method for bending a tube by which the tube C can be accurately and efficiently bent by preventing flattening and other bending errors in bending the tube C, and further to provide a bent tube and a ball scr...
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JP2008036676 |
To obtain a bending apparatus with which a bending can be appropriately performed even when a chucking mechanism is attached to an articulated robot.The bending apparatus has a bending mechanism 40 which has a bending die 42 and a fasten...
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JP2008036675 |
To obtain a bending apparatus which is not restricted in the bending direction even when a chucking mechanism is attached to an articulated robot.The bending apparatus is provided with a fixed table 58 mounted with a bending mechanism 40...
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JP2008025902 |
To prevent abrasion by the mutual rubbing of an outer pipe and an inner pipe when the inner pipe is disposed in the outer pipe, and easily provide a structure therefor.A high pressure-side refrigerant pipe (inner pipe) 141 is provided in...
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JP2008023573 |
To provide a control method etc. for a hot bending apparatus for metallic material by which the metallic material is accurately bent in such a manner that objective quality such as an objective shape can be obtained, and further work eff...
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JP2008006475 |
To suppress a variance in products caused by stretch bending by improving the detection accuracy of proof stress.The variation F of load in tensile load for very short period of time and the variation L of elongation of a shape 100 for v...
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JP2008006450 |
To provide a compressive bending method of a special shaped tube excellent in the bending accuracy by which working limit can be remarkably improved regardless of strength level.In the bending method which is suitable to a special shaped...
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JP2008006448 |
To provide a method of bending a special shaped tube excellent in the bending accuracy by which the generation of buckling is suppressed regardless of the size in thickness even when the tube has high strength and working limit can be re...
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JP2008000752 |
To calculate the optimum bending conditions for a pipe in a short time of period.This system of calculating bending conditions of the pipe includes: a target shape information acquisition means for obtaining the information of the target...
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JP2008000787 |
To provide a frame bending/strut inserting device where a strut such as an arch pipe can be easily inserted or extracted into/from the ground with one tool, and jointly, a frame such as a dovetail groove frame can be easily bent along th...
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JP2007185672 |
To make bending work possible without buckling the web by dispersing pressing load which is generated when bending a wide flange shape.The wide flange shape 1 is bent so that one side of flanges 3a, 3b is taken as the side of the outside...
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JP2007185697 |
To provide a machining method and a machining device enabling the machining of a metallic tube into a shape having a bulged part between bent parts, which machining requirs both of rotary draw bending and hydroforming, and has been hithe...
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JP2007175756 |
To provide a method of manufacturing a double pipe having bent parts by which the end parts of an outer pipe and the portions of an inner pipe to be fixed to those end parts are positioned in a prescribed positions while preventing accum...
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JP2007160334 |
To provide a method and a device for bending a wide flange beam without buckling a web thereof by dispersing a pressing load applied when bending the wide flange beam.The wide flange beam 1 is pressed and bent by dies 5 and 6 so that one...
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JP3971729 |
To provide a hollow shape bending method and bending die capable of improving working efficiency as well as maintaining machining accuracy, in bending a shape material having a hollow cross section, by attaching/detaching a core through ...
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JP3971204 |
To provide a pipe bender with which the end part of a pipe is energized by simple structure. When bending the pipe P, in such a case that the pipe P cannot be clamped with a chuck 23 by being brought into contact with a pressure block 5 ...
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JP3966548 |
To provide a pipe bending apparatus which is provided with a stretch bending (draw bending) function and a compressive bending (compression bending) function and conducts the total process of bending by itself. The pipe bending apparatus...
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JP2007130663 |
To provide a press die with which bending work with a bender is made possible about a metal plate on which ribs are formed and to provide a method of easily manufacturing a blade for wind power generators by utilizing the press die.By ut...
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JP3951673 |
To provide a toughness characteristics guarantee method of a cold forming square steel tube and the cold forming square steel tube whose toughness characteristics are guaranteed capable of fairly evaluating toughness values after bending...
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