Abrégé

The invention relates to means for repairing male threads. The thread repair tool (1) comprises the first tool body (2), the second tool body (3), and the rollers (4, 6) installed on said tool bodies (2, 3), respectively. The first tool body (2) and the second tool body (3) are movably connected to each other at their first ends (2.1, 3.1), and each said tool body (2, 3) has a cambered shape thus forming a ring-like shape when the thread repair tool (1) is in a closed state. The technical result of the invention is repairing a male thread upon re-forming a material of the thread and avoiding cutting thereof, while keeping a diameter of the male thread of a required value.

Classes IPC  ?

• B23G 5/12 - Filières à déclenchement automatique
• B23P 6/00 - Remise en état ou réparation des objets

Abrégé

The invention relates to means for repairing female threads. The claimed thread repairing tool (1) for repairing a female thread comprises a tool housing (2), a base (4) accommodated in the housing (2), at least four forming jaws (5) extending from the base (4) each having a toothed portion (6) on a free end thereof, and an expanding mandrel having an expanding portion (8). The expanding mandrel (7) is arranged to bring the expanding portion (8) into contact with inner surfaces of said free ends thus causing the toothed portions (6) of at least two forming jaws (5) to move apart from each other. The base (4) and the expanding mandrel (7) are arranged to rotate in respect to each other. The expanding portion (8) has a cross section other than round. The invention provides a universal tool for repairing female threads allowing adjustment thereof to a diameter of the thread while applying substantially reforming of the thread rather than cutting thereof.

Classes IPC  ?

• B23G 5/06 - Tarauds
• B23G 5/08 - Outils de filetageFilières avec des moyens de réglage
• B23P 6/00 - Remise en état ou réparation des objets

Abrégé

The invention relates to means for repairing female threads. The claimed thread repairing tool (1) for repairing a female thread (2) being damaged comprises a guide sleeve (3), an outer casing (4), a tool housing (5), at least two forming jaws (6) each having a toothed portion (7), and an expanding mandrel (8). Movement of the expanding mandrel (8) causes a parallel movement of the at least two forming jaws (6) from each other. The invention provides a universal tool for repairing female threads allowing adjustment thereof to a diameter of the thread while applying substantially re-forming of the thread rather than cutting thereof.

Classes IPC  ?

• B23P 6/00 - Remise en état ou réparation des objets
• B23G 7/02 - Outils à cette fin
• B21H 3/08 - Fabrication de corps hélicoïdaux ou de corps ayant certaines parties de forme hélicoïdale de corps à filetage intérieur

Abrégé

The pending invention relates to means for repairing female threads. The claimed thread repairing tool (1) for repairing a female thread (2) being damaged comprises the case (3), the first beam (4), the second beam (5), the forming roller (6) rotatably and movably installed on the first beam (4), the pitch profile means (7) installed on the second beam (5), and the adjusting means for providing reciprocal moving to and apart from each other and fixing the first beam (4) and the second beam (5). The invention provides a universal robust tool for repairing female threads allowing adjustment thereof to a diameter of the thread being repaired while applying substantially rolling of the material the thread is made of but not cutting thereof.

Classes IPC  ?

• B23P 6/00 - Remise en état ou réparation des objets
• B23G 7/02 - Outils à cette fin
• B21H 3/08 - Fabrication de corps hélicoïdaux ou de corps ayant certaines parties de forme hélicoïdale de corps à filetage intérieur