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Through Hole Processing Method of Connecting Rod Big End

A connecting rod big head and processing method technology, which is applied in the direction of metal processing equipment, manufacturing tools, thread cutting tools, etc., can solve the problems such as poor position of the via hole 6, out-of-tolerance diameter of the via hole 6, and easy vibration of the tool, so as to avoid Vibration, the effect of avoiding the vibration of T-shaped milling cutter

Active Publication Date: 2020-12-01
SICHUAN MIANZHU XINKUN MACHINERY MAKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the connecting rod is longer, therefore, the tool length of machining through hole 6 just needs to be very long, and this tool length is greater than the distance of through hole apart from the small end of connecting rod, because tool is too long (the length of tool is 15-18 of diameter times), so during the cutting process, the tool is easy to vibrate, resulting in the diameter of the via hole 6 being out of tolerance
And the cutting position of the tool is at the slope 42 of the big end of the connecting rod (such as a flat slope of 30°-50°). Very bad

Method used

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  • Through Hole Processing Method of Connecting Rod Big End
  • Through Hole Processing Method of Connecting Rod Big End
  • Through Hole Processing Method of Connecting Rod Big End

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Embodiment Construction

[0030] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0031] Any feature disclosed in this specification, unless specifically stated, can be replaced by other alternative features that are equivalent or have similar purposes. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0032] Such as figure 1 As shown, the through-hole processing method of the big end of the connecting rod of the present embodiment includes the following steps:

[0033] Step 1. Clamp the connecting rod to the machine tool;

[0034] Step 2, machining the bottom hole 5 from the end face 41 of the big end of the connecting rod;

[0035] Step 3. Use a T-shaped milling cutter to mill the via hole 6, and insert the T-shaped milling cutter into the bottom hole 5 from the end face 41 of the big end of th...

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Abstract

The invention discloses a processing method for a via hole of a connecting rod big end, and belongs to the technical field of machining of the connecting rod big end. The processing method for the viahole of the connecting rod big head comprises the steps of (1) clamping a connecting rod onto a machine tool; (2) machining a bottom hole in the end surface of the connecting rod big end; and (3) adopting a T-shaped milling cutter for milling the via hole, inserting the T-shaped milling cutter into the bottom hole from the end surface of the connecting rod big end, enabling the cutting part of the T-shaped milling cutter to be located at the position of the via hole to be processed on the bottom part of the bottom hole, and then using the T-shaped milling cutter for eccentrically milling thebottom part of the bottom hole so as to form the via hole. By adopting the processing method for the via hole of the connecting rod big end provided by the invention, the processing accuracy of the via hole of the connecting rod big end can be improved, and the diameter and the position degree of the via hole can be ensured to meet the requirements.

Description

technical field [0001] The invention relates to a through-hole processing method for a large end of a connecting rod, and belongs to the technical field of machining the large end of a connecting rod. Background technique [0002] According to the requirements of use, the connecting rod big end 4 of the connecting rod needs to process the threaded hole 7 and the through hole 6. Before the threaded hole 7 is processed, the bottom hole 5 needs to be processed first, and then the through hole 6 is processed at the bottom of the bottom hole 5, and finally in the The bottom hole 5 is tapped to form a threaded hole 7, wherein the diameter of the bottom hole 5 (and the threaded hole 7) is smaller than that of the through hole 6, and the through hole 6 is located on the slope 42 of the big head of the connecting rod (the slope 42 can be a flat slope or a curved slope ), via hole 6 is a counterbore, such as figure 1 and figure 2 As shown, the bottom hole 5 and the via hole 6 form ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B23G5/18
CPCB23G5/18B23G2200/10B23P15/00
Inventor 彭凡李强
Owner SICHUAN MIANZHU XINKUN MACHINERY MAKING
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