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Turning-instead-of-boring process for hinge hole of auxiliary frame

A technology of hinged hole and sub-frame, applied in the field of machining, to avoid cutting vibration, improve stability and reliability

Inactive Publication Date: 2014-04-23
柳州市江航工贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] To sum up, at present, there is no car-substitute boring process for the hinged holes of the sub-frame that can solve the above problems

Method used

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  • Turning-instead-of-boring process for hinge hole of auxiliary frame
  • Turning-instead-of-boring process for hinge hole of auxiliary frame
  • Turning-instead-of-boring process for hinge hole of auxiliary frame

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Use common machine tool CD6140 to transform.

[0037] Such as Figure 1-Figure 5 As shown, the tool holder system on the middle pallet is removed from the ordinary machine tool CD6140, and the self-designed car fixture 1 and boring bar 2 are installed. The installation position of the toolholder 4 for boring hinged holes is designed on the boring bar 2. Processing other products, adjustable within an appropriate range, the left end of the boring bar 2 is connected to the main shaft of the machine tool through a coupling, and a special top 3 is installed on the tailstock of the machine tool, which is used as the positioning and support of the end of the boring bar. Use a special tool setting template Adjust the position and size of the tool holder. At the beginning of processing, the feeding motion of the boring hole is realized through the left and right lateral movement of the middle support plate, and the cutting and boring processing is finally completed.

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PUM

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Abstract

The invention relates to the field of machining, wherein the hinge hole of the auxiliary frame of the traditional wheel loader is machined by a horizontal boring machine, thus the comprehensive pass percent and machining accuracy are instable, and the machining cost is high; in the technical solution of the invention, the turning-instead-of-boring process of a common machine tool is adopted, a tool holder and a boring rod for the turning-instead-of-boring process are installed on the machine tool, the tool holder is installed on the boring rod, the left end of the boring rod is connected with a lathe spindle by a shaft coupler, and a centre is installed on a tailstock. The turning-instead-of-boring process disclosed by the invention is capable of finishing machining for the hinge hole only by one-time clamping, the accuracy of the hinge hole is high, the production efficiency is nearly doubled, the machining expense is greatly reduced, and the beneficial effects are obvious.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to the processing technology of the sub-frame of a wheel loader. Background technique [0002] The sub-frame is a frame-beam load-bearing part that connects the rear frame of the wheel loader to the running gear. In addition to bearing the self-weight of the second half of the wheel loader and the huge working load, at the same time, the shoulder loader can still keep the body stable, balanced and safe when it is working under severe working conditions. Therefore, during the processing process, the pin holes at both ends are The coaxiality and dimensional accuracy of hinged holes are required to be high. [0003] The traditional processing method is to use a horizontal boring machine to process the hinged holes at both ends respectively. Firstly, on the workbench, carry out marking alignment, pre-clamping, re-alignment, and re-clamping on the workpiece. After repeated times, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B1/00
CPCB23B1/00
Inventor 牙韩春汤建湘莫振武周绍云黄启贤
Owner 柳州市江航工贸有限公司