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Closed Y type spray nozzle suitable for high speed and ultrahigh speed grinding

An ultra-high-speed grinding and closed technology, applied in grinding/polishing equipment, grinding/polishing safety devices, metal processing equipment, etc., to improve quality, increase durability, reduce deformation and vibration of grinding wheels

Inactive Publication Date: 2008-08-06
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to propose a closed Y-shaped nozzle suitable for high-speed ultra-high-speed grinding, which can effectively block the high-speed airflow near the grinding area, so that the grinding fluid It can be injected smoothly during high-speed and ultra-high-speed grinding; and a lower hydraulic pressure can be used to reduce the deformation of the workpiece and the vibration of the grinding wheel, etc., and improve the quality of the grinding surface; it can also effectively clean the adhesion and falling off of the grinding wheel. Abrasive particles, solve the problem of grinding wheel clogging and improve the durability of the grinding wheel

Method used

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  • Closed Y type spray nozzle suitable for high speed and ultrahigh speed grinding
  • Closed Y type spray nozzle suitable for high speed and ultrahigh speed grinding

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Embodiment Construction

[0030] According to the drawings and the nozzle of the present invention with the above-mentioned structure, the nozzle body 4 is made of steel material, the main injection port 7 port and the horizontal plane form an angle of 15°, and the flexible mask 3 is a plastic sheet. The equipment and instrument that a kind of implementation scheme adopts have:

[0031] Machine tool: 314m / s ultra-high speed surface grinding test bench;

[0032] Grinding wheel: Electroplated CBN grinding wheel with a diameter of 350mm;

[0033] Workpiece material: 45#;

[0034] Grinding parameters:

[0035] a. Wheel speed (m / s): 60, 90, 120, 150;

[0036] b. Table feed speed: 2mm / min;

[0037] c. Grinding depth (mm): 0.01, 0.03, 0.05, 0.1, 0.15, 0.2;

[0038] d. Liquid supply pump pressure (MPa): 1, 5, 10;

[0039] e. Grinding method: reverse grinding.

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Abstract

A closed Y-shaped nozzle for ultrahigh-speed grinding has a main body with an inclined primary jet opening having slot shape and an upward secondary jet opening. Said primary has a flexible shielding plate with an open slot and a movable baffle plate for isolating the high-speed airflow in grinding region and allowing the use of low pressure to supply liquid.

Description

technical field [0001] The invention relates to a grinding fluid nozzle for grinding, and further refers to a closed Y-shaped nozzle suitable for high-speed and ultra-high-speed grinding. Background technique [0002] Ultra-high-speed grinding technology is an important mechanical processing method, which has great advantages compared with ordinary grinding, including: (1) high productivity; (2) significantly reducing grinding force and improving machining accuracy of parts; ( 3) Reduce the surface roughness value of the processed workpiece, and easily obtain a high-gloss processed surface; (4) Improve the durability of the grinding wheel and extend the service life. [0003] However, ultra-high-speed grinding also has some negative effects on the grinding process. For example, due to the high-speed rotation of the grinding wheel, a high-speed rotating airflow is formed on the peripheral surface of the grinding wheel. This layer of airflow barrier makes the grinding fluid bl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B55/02B24B1/00
Inventor 盛晓敏尚振涛宓海青吴耀王树启谢桂芝易了
Owner HUNAN UNIV
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