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Method and assembly for permanently securing a cam to a bracket tube

An assembly device, permanent technology, applied in the direction of cams, valve devices, elements with teeth, etc., which can solve the problem of damage to the easy mobility of the cam bracket, deformation of the cam bracket, unsuitable for axially movable cam brackets, etc. question

Active Publication Date: 2020-07-14
THYSSENKRUPP PRESTA TECCENTER AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The method in EP 0340128 B1 for fastening the cams on the base camshaft is not suitable for axially displaceable cam carriers, since riveting in radial direction would deform the internal teeth of the cam carrier and thus possibly impairs the easy mobility of the cam carrier on the externally toothed base camshaft

Method used

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  • Method and assembly for permanently securing a cam to a bracket tube
  • Method and assembly for permanently securing a cam to a bracket tube
  • Method and assembly for permanently securing a cam to a bracket tube

Examples

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Embodiment Construction

[0030] exist Figure 1 to Figure 3 Features and details with the same function and effect are indicated with the same reference numerals.

[0031] figure 1 An embodiment of the assembly device 20 according to the invention is shown as an example for carrying out the method according to the invention. as in figure 1 Shown in longitudinal section along the axis of symmetry, a cam segment 100 is already mounted on the assembly device 20 , in particular on the deformation tool 10 of the assembly device 20 . The cam section 100 comprises an internally toothed cam carrier 1 and cams 2 , 3 , 4 mounted on the cam carrier 1 . Here, two of the cams 2 , 3 , 4 form so-called zero-lift cams, which are designated by reference numerals 3 and 4 . One of the zero-lift cams is denoted by reference numeral 4, and the zero-lift cam 4 has been arranged on the cam carrier 1 and pre-mounted, for example by an interference fit, so that the shaft of the zero-lift cam 4 The facing end face 5 is al...

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PUM

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Abstract

The invention relates to a method for permanently fastening at least one cam on a cam carrier, the method comprising at least the following method steps: a) positioning at least one cam on the cam carrier in a predetermined axial and angular position on the frame, so that said cam bracket extends through the through hole in the cam at least in a certain part, wherein the end face of the cam bracket is aligned with the end face of the cam; b) the cam formed by the cam bracket and at least one cam The section is arranged in the mounting device; c) deforming the cam carrier such that at least one cam is at least positively and / or non-positively fixed on the cam carrier against movement in the axial direction, wherein the mounting The deformation tool of the device is adjusted in the axial direction onto the end face of the cam carrier and the cam carrier is deformed so that the material of the cam carrier is forced outwards in the radial direction against the material already placed on the cam carrier. cam.

Description

technical field [0001] The present invention relates to a method and assembly device for permanently fastening at least one cam on a cam carrier. Background technique [0002] It is known that camshafts, in particular camshafts for controlling the gas exchange valves in internal combustion engines, are of multi-part construction. Here, the base camshaft is manufactured as a tube, and the various cams and other components such as, for example, an encoder for a rotation angle sensor are manufactured separately. The elements are then placed onto the tube and fastened on the tube by pressing or riveting in radial direction. An example of a built-up camshaft of this type of construction is known from EP 0340128 B1, which has a tubular base camshaft and separately arranged cams fastened in radial direction by riveting. A radial direction and an axial direction are each defined relative to an axis of rotation of the provided camshaft during operation. [0003] In particular, it ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L1/047B21D39/00F16H53/02
CPCB21D39/06F01L2001/0473F01L2001/0475F16H53/025B23P2700/02F01L2303/01B21D39/20Y10T29/49293Y10T29/49908
Inventor 曼弗雷德·穆斯特尔托马斯·罗加奇贡特尔·马丁·吕戈伊尔
Owner THYSSENKRUPP PRESTA TECCENTER AG