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A positioning guide device and processing method for step deep hole processing

A positioning guide, step hole technology, used in metal processing equipment, positioning measurement in boring/drilling machines, manufacturing tools, etc.

Active Publication Date: 2019-07-19
CHONGQING HONGJIANG MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a positioning and guiding device for step deep hole machining, which can effectively solve the problems of deep hole tool positioning and ensure that cutting fluid and iron filings can flow out effectively without scratching the surface of the inner hole

Method used

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  • A positioning guide device and processing method for step deep hole processing
  • A positioning guide device and processing method for step deep hole processing
  • A positioning guide device and processing method for step deep hole processing

Examples

Experimental program
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Effect test

Embodiment

[0055] Embodiment: A workpiece needs to process the deep hole of the step to be a four-step deep hole, see figure 1 ; Except for the first-level holes, the rest are deep holes, and each level of step deep holes requires a roughness of Ra1.6, and no borrowing marks are allowed.

[0056] The processing steps are as follows: (see figure 1 , figure 2 with image 3 )

[0057] The first step is to process the first-level step hole, the second-level step hole and the process screw hole; firstly process the first-level step hole 11 and the second-level step hole 12 with a diameter of 25 mm (millimeters) on the workpiece with a gun drill, and in the first-level The edge of the step orifice is processed with multiple process screw holes; the first step hole, the second step hole and the process screw hole do not need to use the step positioning guide member;

[0058] The second step is to install the secondary step positioning guide member; see figure 2 with image 3 , put the t...

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Abstract

The invention relates to a positioning guide device for deep hole machining for steps. The positioning guide device comprises a plurality of step positioning guide members, wherein each step positioning guide member is composed of a guide barrel and a flange disc connected with the guide barrel, and one end of each guide barrel is rounded, and the other end of the guide barrel is connected with the corresponding flange disc; positioning convex rings are arranged on the two end parts of each guide barrel separately; the rounded corner of one end of each guide barrel clings to the conical surface of the end part of a step hole of the machined part of a workpiece; the positioning convex rings on each guide barrel are matched with the inner surface of the step hole of the machined part of theworkpiece; a plurality of through holes in each flange disc are in one-to-one correspondence with a plurality of process holes in the edge of the opening part of the step hole of the machined part ofthe workpiece, and are connected and fixed through thread fasteners; and the inner diameter of the guide barrel of each step positioning guide member is equal to the inner diameter of the next-stage step hole of the workpiece. The invention further provides a method for deep hole machining for steps. The positioning guide device and the method are capable of effectively realizing deep hole tool positioning, and ensuring that a cutting liquid and iron chippings can effectively flow out without scratch on the surfaces of inner holes.

Description

technical field [0001] The invention relates to step deep hole processing, in particular to a positioning guide device and a processing method for step deep hole processing, which are suitable for processing long double-diameter step deep holes with high working pressure. Background technique [0002] The so-called deep hole is the hole whose ratio of the length of the hole to the diameter of the hole is greater than 10. In deep hole processing, in most cases, the depth-to-diameter ratio of deep holes is L / d≥100. Such as the cylinder hole, the axial oil hole of the shaft, the hollow spindle hole and the hydraulic valve hole, etc. Some of these holes require high machining accuracy and surface quality, and some of the processed materials have poor machinability, which often becomes a major problem in production. At present, when processing high working pressure diameter stepped deep holes. Due to the high requirements on the surface finish, processing defects such as tool ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B35/00B23B45/00B23B49/02
CPCB23B35/00B23B45/00B23B49/02
Inventor 罗付强李红豆陈久华吴峰
Owner CHONGQING HONGJIANG MACHINERY CO LTD
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