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Plunger sleeve processing technology

A processing technology and plunger sleeve technology, applied in the field of plunger sleeve processing technology, can solve the problems of cumbersome plunger sleeve process routes, long process routes, and easy dust generation, so as to reduce processing costs, improve product quality, and reduce hazards Effect

Active Publication Date: 2017-06-13
无锡威孚马山油泵油嘴有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing technology, the process route for the processing of the plunger sleeve is cumbersome and long, and dust is easily generated during the process, and dust in the workplace is harmful to employees.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] Specific embodiments of the present invention will be described below.

[0044] The plunger sleeve processing technology of the present embodiment comprises the following steps:

[0045] The first step: cold extrusion blank, and conduct comprehensive inspection;

[0046] The second step: the outer circle and end face of the rough turning head, the rough turning shape, and the rough turning thread end; then conduct a comprehensive inspection of the rough turning blank;

[0047] Step 3: Use CNC lathe to perform CNC forming on the threaded end;

[0048] Step 4: Remove the burr on the upper end of the mounting hole;

[0049] Step 5: Drill the middle hole in reverse;

[0050] Step 6: CNC molding of the appearance and central control of boring and reaming;

[0051] Step 7: Use a bench drill to deburr the lower end of the flange surface;

[0052] Step 8: Use a CNC milling machine to flatten the threaded end face, and then deburr the threaded end;

[0053] Step 9: Drill 9...

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PUM

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Abstract

The invention relates to a plunger bushing processing technique, comprising the following steps: cold extrusion of a blank; rough turning of head excircle and end face, profile and threaded end; comprehensive inspection; removal of burrs at the upper end of a mounting hole; reserve drilling of a mesopore; removal of burrs at the lower end of a flange face; milling of a threaded end face; drilling of a 90-degree straight hole; comprehensive removal of burrs; soft processing and comprehensive inspection; carburizing treatment; milling of a theta 25 excircle, and cleaning; quenching and aging and blackening treatment; milling of a theta 24 excircle and a scapular plane, and cleaning; comprehensive inspection; press fit of upper and lower pieces; magnetic flaw detection and demagnetization; honing for removing residual; cleaning; honing mesopore inspection for removing residual; rough honing of a mesopore and cleaning; inspection of rough honing mesopore precision and mesopore classification; semi-fine honing of the mesopore and cleaning; inspection of semi-fine honing mesopore precision and classification of size of the scapular plane; milling of the outline and cleaning; milling of a small excircle; magnetic flaw detection and demagnetization, and cleaning; comprehensive inspection; aging treatment, mesopore classification, fine polishing of the mesopore, and cleaning with an ultrasonic cleaner; and inspection of the fine polished mesopore and mesopore classification. The processing technique is high in processing precision.

Description

technical field [0001] The invention relates to the technical field of plunger pair processing, in particular to a plunger sleeve processing technology. Background technique [0002] The plunger couple is the fuel injection plunger of the high pressure oil pump of the diesel engine. Due to the precise fit of the plunger couple and the high-speed movement of the plunger, the fuel can be pressurized. In the prior art, the process route for the processing of the plunger sleeve is cumbersome and long, and dust is easily generated during the process, and the dust in the workplace is harmful to employees. Contents of the invention [0003] The applicant provides a plunger sleeve processing technology for the above-mentioned shortcomings in the existing production technology, thereby simplifying the processing technology, reducing the processing flow, and reducing the production cost on the premise of ensuring product quality. [0004] The technical scheme adopted in the presen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
CPCB23P15/00F02M59/44
Inventor 宋军缪映映
Owner 无锡威孚马山油泵油嘴有限公司