A device for machining a crankshaft oil suction pipe hole

By combining a V-shaped positioning groove and a limit block clamping structure with a laser sensor and a hydraulic system, high-precision multi-station machining of crankshaft oil suction pipe holes was achieved, solving the problems of positioning error and low productivity in existing equipment and improving machining efficiency and accuracy.

CN224526049UActive Publication Date: 2026-07-21JIAXING HONGFENG MACHINERY
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIAXING HONGFENG MACHINERY
Filing Date
2025-06-23
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing equipment suffers from radial positioning errors and low productivity in crankshaft oil suction pipe hole machining, especially due to inaccurate positioning caused by planar positioning or unidirectional clamping, which makes it difficult to meet the requirements of high-precision machining.

Method used

The crankshaft is precisely positioned and machined in multiple positions by using a combination of V-shaped positioning grooves and limit blocks, along with laser sensors and a hydraulic system. The control system enables alternating clamping and machining, thereby improving machining efficiency.

Benefits of technology

It improved the radial positioning accuracy and machining consistency of the crankshaft oil suction pipe hole, shortened the machining time, increased productivity, and simplified the waste cleaning process.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224526049U_ABST
    Figure CN224526049U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of boring crankshaft oil suction pipe hole processing devices, including processing main body and waste collection box, the waste collection box is located in processing main body outer wall one side, the inside of processing main body is composed by workpiece placement area and boring area, the workpiece placement area is located outside, and it is movably connected between the workpiece placement area and boring area by telescopic steel frame, the V-shaped positioning groove of the inner wall of upper fixed seat and the crankshaft journal outer circle form two-point contact, compared with traditional plane positioning, radial positioning accuracy is relatively improved, and additionally set adjustable limit block, in addition to the upper fixed seat and adjusting seat up and down fixed clamping, from the other side to be fixed, adopt multiple laser sensors to detect crankshaft journal, realize calibration by triangulation method, and by the vertical orientation adjustment of lead screw and processing seat, and the horizontal orientation adjustment of second hydraulic cylinder and telescopic steel frame to ensure the effective performance of processing technology.
Need to check novelty before this filing date? Find Prior Art