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Quenching apparatus of camshaft

A quenching device, camshaft technology, used in furnace types, furnaces, heat treatment furnaces, etc.

Inactive Publication Date: 2007-05-23
FUJI ELECTRONICS IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Another object of the present invention is to provide a camshaft hardening device that can solve the problem of preventing the induction hardening of the shaft neck in advance.

Method used

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  • Quenching apparatus of camshaft
  • Quenching apparatus of camshaft
  • Quenching apparatus of camshaft

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] Embodiments of the present invention will be described below with reference to the drawings.

[0055] Fig. 1 is a schematic configuration diagram showing a camshaft hardening device according to a first embodiment of the present invention, Fig. 2 is a front view of the camshaft hardening device, and Fig. 3 is a diagram showing positions of camshafts and heating coils in the camshaft hardening device Relational cross-sectional view, Figure 4 is a front view showing the positional relationship between the camshaft and the heating coil in the camshaft quenching device, Figure 5 is a front view of the drive mechanism in the camshaft quenching device, Figure 6 is a chronological view Change the front view showing the relationship between the heating coil and the cam in the camshaft hardening device.

[0056] The camshaft hardening device according to the first embodiment is used for induction hardening of a camshaft WA for an automobile engine shown in FIG. 16 . More specif...

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PUM

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Abstract

The invention provides a quenching device with camshaft. The device can response-quench the WA1 and WA2 catches of WA at the same time to prevent the cervical part of the camshaft from quenching, and prevent catches from concentrate heating. The device comprises heating coil (110) of heating catch WA1, heating coil (120) of heating catch WA2, and driving mechanism (150). The center of heating coil (110) deviates from the center of catch WA1, and the center of heating coil (120) deviates from the center of catch WA2. The center of heating coil (110, 120) winding catch WA1 and WA2 are driven decenteredly. There is also a cooling device and a shielding ring.

Description

technical field [0001] The present invention relates to a camshaft hardening device for induction hardening the peripheral surface of a cam formed on a camshaft, and more specifically, to a camshaft hardening device for each cam outer peripheral surface of a camshaft formed with various types of cams with different phases, A camshaft hardening device that simultaneously performs induction hardening. Background technique [0002] A camshaft used in an automobile engine generally has various types of cams with different phases. In addition, high-frequency induction hardening needs to be performed on the outer peripheral surface of each cam. A typical example of a camshaft for an automobile engine will be described with reference to FIG. 16 . [0003] The camshaft WA shown in FIG. 16 has two types of cams with different phases, that is, three cams WA1, and two cams WA2 arranged on both end sides of the cams WA1. At both ends of the camshaft WA, journal portions WAJ are provi...

Claims

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Application Information

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IPC IPC(8): C21D9/30C21D1/10C21D1/18
CPCY02P10/25
Inventor 长尾英三
Owner FUJI ELECTRONICS IND