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JP2023553763A |
A billet rolling mill consists of two rolls for forming the blank (E) to be formed, each forming roll being provided with at least one rolling tool and rotated by at least one respective drive motor. It includes two rolls that are rotate...
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JP7404314B2 |
This aluminum alloy, for an extruded element pipe (1) provided with an inner surface linear groove, is for the production of pipes provided with an inner surface helical groove. When D (mm) and t (mm) respectively represent the outer dia...
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JP7403109B2 |
An aluminum alloy bolt having a central axis C, the aluminum alloy bolt includes a head portion; an underhead portion extending downward from the head portion; an underhead fillet formed between the head portion and the underhead portion...
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JP2023172377A |
To provide a compact rolling device.A rolling device includes: an output gear 73 installed on an output shaft 72 of a motor 7; a spindle gear 24 meshed with the output gear 73 and installed on the spindle 21; and a rail 4c slidably suppo...
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JP2023172177A |
To provide a headrest stay which can prevent a headrest stay from being removed due to torsional deformation of the headrest stay during a collision, and to provide a notch processing method.A headrest stay 1 has: an embedded part 2 embe...
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JP7373567B2 |
A workpiece executes a rotation movement about a longitudinal axis and is machined by a tool in a multitude of reshaping engagements, in which an active region of the tool comes into contact with the machining region. The tool is held by...
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JP2023142725A |
To provide a method for manufacturing a bearing component capable of efficiently eliminating gaps existing around a non-metallic inclusion.In a method for manufacturing a bearing component, in order to reduce gaps between a non-metallic ...
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JP7352265B1 |
[Problem] By forming a concave portion spirally along the outer peripheral surface of a hollow steel pipe body, concave portions and protruding portions are alternately formed in the cross section of the steel pipe body, and the length o...
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JP7338810B1 |
Provided is a ball screw device capable of reducing the number of parts and improving assembling efficiency even in a structure in which a screw shaft is rotationally driven via a planetary speed reduction mechanism. The screw shaft (2) ...
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JP2023536915A |
The present invention relates to fastening elements, in particular eccentric elements, and adjustment systems comprising fastening elements. Fastening elements are already known from the prior art. They are often used in adjustment syste...
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JP7332356B2 |
To provide a rolling tool which can streamline the work of mounting a die on a base.According to a rolling tool 1, engagement of a male thread part 21 and a female thread part 13b is used, so that when rotating a pin 20 (head 23) by the ...
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JP7330886B2 |
A thread former for the chipless production of a thread has a plurality of pressing lands, which are each arranged at predefined separation angles (T) along a shaping curve. Each separation angle (T) is smaller than or equal to a predefi...
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JP2023535656A |
A processing process of NPR rebar coil, wherein the NPR rebar is in a cold working state, its diameter is less than 14mm, its yield strength is 800Mpa~950Mpa, its tensile strength is 900MPa~1100MPa, and the maximum elongation is rate20%,...
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JP7324762B2 |
In a method for manufacturing a hollow wheel which includes an internal toothing and an external toothing, wherein the internal toothing is a gear toothing, a workpiece is machined by way of a stamping tool. The workpiece has a tubular s...
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JP2023108943A |
To provide a screw production system which suppresses deterioration in safety of an operator and can improve the efficiency of screw production.A screw production system includes a form-rolling device which produces a screw by rolling, a...
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JP2023104154A |
To provide a gear processing rolling tool capable of forming, in high efficiency, various gears such as a highly-accurate internal gear with a small module, a bevel gear or a hypoid gear.In a cylindrical gear processing rolling tool 10 h...
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JP2023101845A |
To provide a rolling tool for gear machining that reduces rolling load and allows a workpiece with hard hardness to be machined in internal gear synchronous rolling with axial feeding.A rolling tool 100 for gear machining is provided, ha...
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JP2023099404A |
To manufacture a stepwise screw only by adding one process to a conventional screw manufacturing method.A stepwise screw is manufactured by performing thread rolling by making a stepwise shape in a preceding stage of thread rolling, or b...
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JP2023527596A |
Processing process of NPR rebar bar, NPR rebar is in cold working state, its yield strength is 800Mpa~950Mpa, tensile strength is 900MPa~1100MPa, maximum elongation 10~40%. Yes, the processing process steps include linear material supply...
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JP7297943B2 |
A thread forming tap 10 for a ball screw, the thread forming tap 10 being formed so that: a thread crest 18 of a biting part is provided with an advancing-side flank surface 18a that serves as a front leading side when screwed into a pil...
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JP7292763B1 |
A triangular groove having a maximum groove width of 0.3 mm can be formed on the cutting edge of a Thomson blade. Machining blades 4 which are harder than the Thomson blade T and formed with a sharp tip are formed at equal intervals in t...
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JP7290290B2 |
To provide a bolt and a nut which can be fastened each other easier than conventional ones even under an environment where foreign matters such as sand exist, and furthermore are excellent in durability.A bolt 30 and a nut 20 are utilize...
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JP2023078498A |
To make it possible to prolong the effective length of the teeth of a worm by applying an appropriate load to a shaft-shaped material of the worm with the processing teeth of a round die.The round die is set so that the die fill ratio of...
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JP2023523378A |
The present invention is a method for increasing the load-bearing capacity of a case-hardened rolling bearing raceway of a rolling bearing ring element, comprising: an unhardened core area (K) and, at least in certain parts, a case-harde...
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JP7286076B2 |
The present invention is a die positioning system for use in positioning mobile or fixed dies. The system includes a pair of key bars, a pair of key disc inserts, a set of key discs, and a set of disc backers. The key bars and key discs ...
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JP2023068877A |
To provide a reinforcing bar anchor and a manufacturing method thereof, in which variations of dimensions in the manufacturing of reinforcing bars are allowed.In a threaded reinforcing bar joint of a deformed reinforcing bar, which is a ...
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JP7274402B2 |
The invention relates to a method and a forming system for producing a gear part through a rotational forming. According to the invention provision is made in that in a preforming step a rotationally symmetrical workpiece is set into rot...
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JP2023063916A |
To provide a rolling machine capable of automatically correcting a phase of a flat die while simplifying a structure and improving processing accuracy and reliability by being capable of detecting lack of a biting rough tooth of the flat...
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JP2023063962A |
To provide a wave gear device and an actuator hardly degrading reliability.A wave gear device 1 includes a rigid internal gear 2, a flexible external gear 3, and a wave generator. The wave generator has a non-circular cam rotated and dri...
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JP2023063961A |
To provide a wave gear device and an actuator hardly degrading power transmission efficiency.A wave gear device includes a rigid internal gear 2, a flexible external gear 3, and a wave generator. The wave generator has a non-circular cam...
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JP2023062469A |
To provide a shaft enabling the omission of post-processing to a coupling portion that is a production object of a knurling, and a method of manufacturing the shaft.In a coupling portion 32 of an output shaft 23 that is a production obje...
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JP7266062B2 |
An object of the present invention is to provide a rolling die that optimizes flow of a material to be rolled during a rolling operation, prevents a tooth tip of a product from forming an incomplete shape, and eliminates the need of an o...
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JP7261060B2 |
To provide a method of manufacturing a headed part that is less likely to create burr on a seat surface, which is likely to occur in rolling of a relief groove in a shaft part.A method of manufacturing a headed part according to the pres...
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JP2023515157A |
A device (1) for rolling rings is a rolling mill with a main roller (11) and at least one mandrel roller (13a) to which a ring can be delivered. (10) a rolling device (10) configured to roll the ring by having the mandrel roller (13a) ac...
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JP7243819B2 |
A shaft member includes: an outer peripheral surface; at least one axial side surface facing an axial direction; a chamfered portion formed at a connection portion between an axial end edge of the outer peripheral surface and an outer pe...
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JP7243254B2 |
To provide a manufacturing method and a manufacturing apparatus, capable of shortening a setup time as much as possible, while suppressing enlargement of a device physique.Concerning a V-groove roll 12L and a V-groove roll 12R, each dire...
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JP7240293B2 |
A method of manufacturing a rack bar includes: a rolling die abutment step of bringing a pair of rolling dies into abutment against an intermediate portion of a workpiece; and a ball screw groove forming step of forming a ball screw groo...
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JP2023015535A |
To provide a tapping screw having a loosening stopping function or a return stopping function, and a manufacturing method thereof.A spiral streak (2a) inserted into a prepared hole (3a) in a workpiece is formed in a preceding-side region...
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JP2023007256A |
To provide a rolling processing device capable of lengthening the service life of a tool by efficiently supplying a coolant to both of the tip side and the rear side in rolling processing that involves thrust feeding.A representative con...
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JP2023003463A |
To provide a method for manufacturing an external tooth gear, which can reduce weight and manufacturing cost and accurately and stably manufacturing the same.The method for manufacturing the external tooth gear, which holds a gear blank ...
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JP2022553930A |
The present invention is provided with a cylindrical tube (1) as an initial form and then the cylindrical tube (1) is cut with a tapered front portion (10) tapering towards an introduction tip (9). A screw foundation (12) for fixing the ...
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JP7194726B2 |
A radial/axial ring rolling mill for rolling a ring has an axial rolling device and a radial rolling device. The radial rolling device includes a main roller and a roller mandrel, between which the ring can be shaped. The roller mandrel ...
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JP2022188334A |
To provide a rolling machine capable of suppressing the occurrence of a random walk phenomenon (back-and-forth movement in axial direction) of a shaft-shaped raw material during rolling machining of a spiral tooth part of a worm.The roll...
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JP2022182070A |
To provide a manufacturing method of a rolled screw which can manufacture a larger number of the rolled screws from one blank material, in through-feed rolling, and the rolled screw.A manufacturing method of a rolled screw includes: a fi...
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JP7179991B2 |
A method for producing a ball raceway on a workpiece includes providing the workpiece, machining a preliminary thread profile on the workpiece and providing a thread rolling tool. The thread rolling tool has a tool shank, and the tool sh...
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JP2022174777A |
To provide a rolling tool for internal gear which can suppress the generation of excess thickness on a tooth surface of a workpiece in the rolling processing and support various tooth widths, and a rolling processing method of a gear usi...
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JP7174686B2 |
A tool and related method for the non-cutting production or reworking of a thread in/on a workpiece comprises a forming area which is rotatable about a tool axis (A), the forming area having a plurality of pressing lobes protruding or pr...
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JP2022172730A |
To provide a rolling machining method of a gear, capable of significantly reducing the number of times of trial-and-error machining in the manufacturing of a gear by rolling machining with a rolling tool, particularly in synchronous roll...
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JP7173365B2 |
A rolled thread screw includes: a screw part having, on an outer circumferential part of the screw part, thread crests and thread grooves disposed alternately along an axial direction of the rolled thread screw; and a columnar part adjoi...
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JP7168553B2 |
A method for producing a drop centre rim and to a drop centre rim for vehicle wheels of commercial vehicles. The rim has a plurality of zones, which form an inner rim flange and an outer rim flange, an inner steep-tapered bead seat and a...
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