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Drilling precise positioning method in the process of mechanical drilling

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: 2012-02-15
BAOSHAN IRON & STEEL CO LTD
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  • Abstract
  • Description
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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

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  • Drilling precise positioning method in the process of mechanical drilling
  • Drilling precise positioning method in the process of mechanical drilling
  • Drilling precise positioning method in the process of mechanical drilling

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Embodiment Construction

[0030] 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.

[0031] 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;

[0032] Such as figure 2 As shown, the position of hole a2 is l 1 and l 2 The size and position of are determined. ...

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Abstract

A method for precise positioning of drilling holes in the process of mechanical drilling, comprising the following steps: 1) selecting the datum plane of the plate, selecting two cylindrical pins with the same diameter as the drill bit and a standard gauge block as measuring pieces; 2) determining the hole a Distance l2 from one side of the plate; 3) determine the distance l1 of the hole a from the other side of the plate; 4) replace the cylindrical pin in the drill bit fixture of the drilling machine with a drill bit, carry out the drilling operation with the above-mentioned positioning point, and complete Drilling of hole a; 5) determining the center of hole b; 6) completing the drilling of hole b according to the above center position of hole b. The invention is suitable for ordinary machine tool processing, and is easy to operate. The drilling positioning of side holes, side holes and hole spacing with high processing accuracy can make its processing accuracy close to that of numerical control machine tools, and ensure that the shape and position tolerance can be adjusted in the finishing process. within the scope of the requirements.

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

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B35/00G01B5/00G01B5/02G01B5/14
Inventor 卢江海
Owner BAOSHAN IRON & STEEL CO LTD
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