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Lift Data Correction Method of Cam Processing Surface and Processing Method of Cam Processing Surface

A technology for machining surfaces and cams, which is applied in metal processing equipment, program control, manufacturing tools, etc., and can solve problems such as inability to achieve precision convergence

Active Publication Date: 2021-12-31
JTEKT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if the shape of the part where the machining conditions change greatly is accidentally corrected, it may not be possible to keep the accuracy of the contour shape of the cam within the required tolerance range.

Method used

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  • Lift Data Correction Method of Cam Processing Surface and Processing Method of Cam Processing Surface
  • Lift Data Correction Method of Cam Processing Surface and Processing Method of Cam Processing Surface
  • Lift Data Correction Method of Cam Processing Surface and Processing Method of Cam Processing Surface

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Embodiment Construction

[0047] Hereinafter, the form for implementing this invention is demonstrated using drawing. First, use Figure 1 ~ Figure 4 The overall configuration of the grinding machine 2 (grinding machine system 1 ) for grinding the machining surface of a cam to be machined using the final corrected lift data obtained by the method of correcting the lift data of the cam machining surface according to the present invention will be described.

[0048] exist figure 1 An example of the appearance of the grinder system 1 is shown in . The grinder system 1 is housed inside Figure 2 ~ Figure 4 The grinding machine 2 shown has a cover 1A, a movable door 1B, fine adjustment handles 1C, 1D, and a control device 80 and the like. It should be noted that the control device 80 may be arranged in the operation panel, or may be arranged in the control panel inside the grinding machine system 1 .

[0049] Figure 2 ~ Figure 4 show figure 1 An example of the overall structure of the grinding machin...

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Abstract

The present invention relates to a method of correcting lift data of a cam processing surface and a method of processing a cam processing surface. In the method of correcting lift data of a cam processing surface, a correction operation unit is used to obtain The original lift of the original lift data is pre-corrected in such a way that the rate of change of the processing conditions at each processing position on the outer peripheral surface of the cam is below the preset change rate threshold. The difference between the pre-corrected lift and the original lift, that is, the pre-lift error and the preset lift error threshold, as well as the change rate and change rate threshold of the processing conditions, will be relative to the cam rotation angle The original lift is corrected to the final corrected lift.

Description

technical field [0001] The present invention relates to a correction method of lift data of a cam processing surface and a processing method of the cam processing surface. Background technique [0002] For example, the intake valve and the exhaust valve provided in the combustion chamber of the internal combustion engine are operated by a cam that rotates synchronously with the rotation of the crankshaft, and respectively open the opening of the intake pipe connected to the combustion chamber and the opening of the exhaust pipe connected to the combustion chamber. Department for on-off control. In addition, a member called a tappet is provided between the cam and the intake valve and between the cam and the exhaust valve, and the cam operates the intake valve or the exhaust valve via the tappet. [0003] The shape of the outer peripheral surface of the cam is represented by lift data (raw lift data) shown by the lift amount (movement amount) of the tappet with respect to th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/4093G05B19/18B24B19/12
CPCB24B19/125G05B19/184G05B19/40937G05B2219/50053G05B2219/45218
Inventor 斋藤明水谷吉宏阿部田乡
Owner JTEKT CORP
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