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Spherical surface machining method for plunger and special finishing grinder

A spherical surface processing and grinder technology, applied in the field of mechanical processing, can solve the problems of inconsistent axis, spherical surface finish and surface profile quality problems, and achieve the effect of easy replacement, improved processing capacity, market share, and good stability.

Pending Publication Date: 2022-07-29
PUNCH IND DALIAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the existing numerical control lathe processing spherical surface smoothness and surface profile quality problems, provide a kind of plunger and spherical surface processing method, can realize the spherical body processing of the plunger, thereby processing the spherical surface on the cylindrical grinding machine, Process the plunger that can meet the technical requirements of the product
[0004] Another object of the present invention is to solve the problem that the center of the circle after the grinding wheel is trimmed is inconsistent with the axis of the plunger product, and to provide a special dressing grinder for the plunger spherical surface. The grinding wheel dressing range of the special dressing grinder is R85~125mm. Clamp range Φ5~Φ12mm

Method used

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  • Spherical surface machining method for plunger and special finishing grinder
  • Spherical surface machining method for plunger and special finishing grinder
  • Spherical surface machining method for plunger and special finishing grinder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] like figure 1 Shown: A special dressing and grinding machine for the spherical surface processing method of the plunger, including a mechanism composed of a rotary seat group and a double-roller transmission group:

[0047] The structure of the rotary seat group is as follows figure 2 As shown, a pair of radial ball bearings 28 are installed in the shaft hole of the rotary seat 1, the rotary seat shaft inner bushing 4 and the rotary seat shaft outer bushing 5 are installed in the middle of the bearing, and then the rotary seat shaft outer end cover 3 is used to The outer ring of the bearing is fixed tightly, and then the dust-proof sealing ring is installed in the inner hole of the outer end cover of the rotary seat shaft, and the other sealing ring is installed at the other end hole of the rotary seat. Apply lubricating oil on the rotary table liner 6 and put it on the outer end cover of the rotary seat, insert one end of the rotary table 2 shaft from the outer end c...

Embodiment 2

[0054] The object to be processed in this embodiment is a plunger, and the structures of the parts to be processed are as follows Figure 9 , Figure 10 shown.

[0055] A spherical surface processing method of a plunger, firstly, the plunger is processed into a shaft rod structure with a hanging table, the shaft rod is processed into a hollow groove on the inner end face of the hanging table, and then the hanging rod is used as a reference to make the hanging table. The angle and full length of the outer end face of the table are processed, and finally the spherical surface of the outer end of the plunger hanging table is processed on the grinding machine by a special dressing grinder. Specifically include the following steps:

[0056] S1: Centerless grinding machine to process the shaft, the specific steps are:

[0057] 1) The shaft of the plunger is supported by the support plate of the centerless grinder, and the guide wheel drives the workpiece to rotate the grinding wh...

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Abstract

The invention relates to the technical field of machining, in particular to a plunger spherical surface machining method and a special finishing grinder. A plunger is machined into a shaft rod structure with a hanging table, the inner end face of the hanging table and a receding groove are machined, then the shaft rod is accurately ground to guarantee the straightness and the roundness of 0.001 mm, the angle and the overall length of the outer end face of the hanging table are machined, finally, the SR90 of the outer end face of the hanging table is accurately ground on a special finishing grinder, and the surface profile tolerance can be within 0.002 mm. By the adoption of the machining method, the use precision of the plunger can be met, meanwhile, the machining cost of the plunger is greatly reduced, the productivity is improved, the machining method is suitable for production and machining of products meeting the technical requirements, and then the products are more competitive in the market.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a spherical surface processing method of a plunger and a special dressing grinder. Background technique [0002] The plunger fuel injection pump is the most important part in the diesel supply system. Its performance and quality have a great influence on the diesel engine, and it is called the heart of the diesel engine. The plunger is the core component of the fuel injection pump. It mainly controls the oil pressure and the amount of fuel injection. The surface contour error of the spherical surface of the plunger head directly affects the fineness of the fuel injection. The surface contour of the spherical surface is required to be within 0.002mm. The spherical surface of the plunger head is processed, and the contour of the CNC turning surface cannot meet the requirements and the qualified rate is low. In the existing grinding machine processing, the arc center ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B24B11/08B24B53/12B24B53/07B24B41/06B24B47/12
CPCB23P15/00B24B11/08B24B53/12B24B53/07B24B41/067B24B47/12
Inventor 徐成武张毅宾孙明旭
Owner PUNCH IND DALIAN
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