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A thread forming tool

A thread and cutting tool technology, applied in the field of threads used to form internal threads in metal workpieces, can solve problems such as high temperature, achieve uniform wear distribution, reduce wear, and improve reliability

Inactive Publication Date: 2019-04-26
WALTER AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, such known thread forming tools are subjected to high temperatures

Method used

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  • A thread forming tool
  • A thread forming tool
  • A thread forming tool

Examples

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Embodiment Construction

[0029] refer to figure 1 , figure 1 A side view of a thread forming tool 10 for forming an internal thread in a metal workpiece, ie for creating a thread in a hole without any material removal action, is shown in a side view according to a first embodiment. The thread forming tool 10 comprises a shank 1 and a thread forming part 2 , which are rotatable about a common axis 50 . The axis 50 extends in the longitudinal direction of the thread forming tool 10 . The shank 1 is arranged at the rear of the thread forming tool 10 and the thread forming part 2 is arranged at the front of the thread forming tool 10 . The thread forming tool has a front end 7 and a rear end 8 , the distance between which in the longitudinal direction is the full length L of the thread forming tool 10 . The thread forming part 2 is fixedly connected to the handle 1 . More specifically, the thread forming portion 2 and the handle 1 are made in a single piece of material. The thread forming tool 10 is ...

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Abstract

A thread forming tool (10) for forming an internal thread in a workpiece, the thread forming tool comprising a shank (1) and a thread forming portion (2), which are rotatable around a common axis (50), said axis extending in a longitudinal direction of the thread forming tool (10), the thread forming portion (2) having a plurality of radially protruding lobe portions (3) being circumferentially spaced-apart by relief portions (6), said lobe portions (3) having in the longitudinal direction a plurality of thread forming profiles, each thread forming profile having a radially outermost ridge (4), being connected to a first flank and a second flank, wherein a first flank of a first thread forming profile is connected to a second flank of an adjacent second thread forming profile via a threadgroove (5), said lobe portions (3) having in the longitudinal direction a plurality of thread grooves (5). The flanks of at least one first thread groove encloses a first angle, which is smaller thana second angle enclosed by the flanks of at least one second thread groove.

Description

technical field [0001] The present invention relates to a thread-forming tool for forming internal threads in metal workpieces, the thread-forming tool comprising a shank and a thread-forming portion, the shank and the thread-forming portion being rotatable about a common axis, said axis being Extending in the longitudinal direction of the forming tool, the thread forming portion has a plurality of radially protruding protrusions axially spaced apart by the relief portion, the protrusions having a plurality of thread forming profiles in the longitudinal direction, each The thread forming profile has a radially outermost ridge connected to a first side and a second side, wherein the first side of a first thread forming profile is connected to the adjacent second thread forming profile via a thread groove. On the second side, the raised portion has a plurality of thread grooves in the longitudinal direction. Background technique [0002] There are different types of thread fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23G5/06B23G7/02
CPCB27M3/0026B27M3/0053B27M3/0086B23G5/06B23G7/02
Inventor 马丁·比雷尔
Owner WALTER AG
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