Drill hole accurate positioning method in mechanical drilling process

A technology of precise positioning and mechanical drilling, applied in the direction of using mechanical devices, mechanical measuring devices, mechanical gap measurement, etc., can solve problems such as operation accuracy or service life discount, and processing requirements cannot be met.

Inactive Publication Date: 2011-03-16
BAOSHAN IRON & STEEL CO LTD
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the processing requirements are not met, resulting in greatly reduced operating accuracy or service life of the workpiece after it is put on the machine

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Drill hole accurate positioning method in mechanical drilling process
  • Drill hole accurate positioning method in mechanical drilling process
  • Drill hole accurate positioning method in mechanical drilling process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] See Figure 1~ image 3 Firstly, the method of the present invention cancels the consistently used marking and sample punching positioning operations, reducing the accumulated errors in each step of operation.

[0032] l 1 , l 2 , l 3 There is an internal connection between the dimensional requirements. After any one of the dimensions deviates, the rest of the tolerance zone cannot be guaranteed, so the accuracy requirements of the first dimension must be guaranteed. So the first size l 1 There must be an accurate datum reference plane as the relative size measurement plane, considering the verticality deviation in the accumulated error, that is, choose the side of the plate 1 closest to the drilled part as the datum plane. Select two cylindrical pins 4, 5 with the same diameter as the drill bit and a standard gauge block 6 as the measuring piece;

[0033] Such as figure 2 As shown, the position of hole a2 is l 1 and l 2 The size and position of are determined. ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a drill hole accurate positioning method in mechanical drilling process, including the following steps: 1) the datum plane of a plate is selected, two cylindrical pins with the same diameter of a drill head and a standard gauge block are selected as measuring pieces; 2) distance l2 between a hole a and one side of the plate is determined; 3) distance l1 between the hole a and the other side of the plate is determined; 4) the cylindrical pin in a drill fixture of a drilling machine is replaced into the drill head, and drilling is carried out on the positioning points, thus completing drilling of the hole a; 5) the center of a hole b is determined; 6) drilling of the hole b is completed according to the central position of the hole b. The invention is applicable to processing of general machine tool, operation is easy, side hole with high accuracy is processed, and high accuracy drill hole positioning by side and side hole as well as hole pitch is realized, so that processing accuracy thereof can be almost close to the processing accuracy of a numerical control machine and form and position tolerance is ensured to be within the processing requirement.

Description

technical field [0001] The invention relates to a positioning and measuring method for metal processing, in particular to a positioning method for measuring the distance between holes and between holes and sides during the mechanical drilling process. Background technique [0002] Positioning is a common method in mechanical processing and parts assembly, and positioning accuracy is the basis for ensuring the quality of processing and assembly. The design to ensure the positioning accuracy of processing is conducive to improving the overall level of mechanical products. Existing means and methods of precise positioning are many and very accurate. For example, computer numerical control positioning is a typical precise positioning technology now, which completely achieves zero tolerance of shape and position. However, this technology is suitable for assembly line finishing production enterprises with batch processing. For metallurgical manufacturing enterprises, there will al...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B23B35/00G01B5/00G01B5/02G01B5/14
Inventor 卢江海
Owner BAOSHAN IRON & STEEL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap