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Method for measuring and calibrating flow volume and velocity of numerically controlled shot blasting machine

A flow rate, shot blasting machine technology, applied in the detection field

Active Publication Date: 2017-03-15
XIAN AIRCRAFT BRANCH OF XIAN AIRCRAFT INT
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  • Abstract
  • Description
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Problems solved by technology

[0003] There are many parameters affecting the shot peening intensity, among which the flow rate of the projectile is one of the main influencing parameters. Its inaccuracy will have a direct impact on the shot peening or shot peening strengthening. In the BAC5730 file of Boeing Company, the special process inspection shot peening project At present, the required shot peening flow rate and flow rate must meet the accuracy of ±10%. However, through searching, there is currently no specific document regulation in the field of detection in China. There is no explicit requirement, in order to solve this problem, it is urgent to invent a method that can accurately measure and calibrate the flow rate of the CNC shot blasting machine

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  • Method for measuring and calibrating flow volume and velocity of numerically controlled shot blasting machine
  • Method for measuring and calibrating flow volume and velocity of numerically controlled shot blasting machine
  • Method for measuring and calibrating flow volume and velocity of numerically controlled shot blasting machine

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Embodiment Construction

[0029] See attached Figure 1-3 Taking the flow rate calibration of a certain numerical control shot blasting machine as an example, the present invention is further described in detail:

[0030] Referring to the accompanying drawings, the shot collector 1 is a sealed container, the side of the container is provided with a shot receiving port 3, which is connected to the nozzle of the numerical control shot blasting machine, and a shot discharge port 4 is provided at the bottom of the container.

[0031] 1) Select multiple measurement calibration points evenly in the entire range of the flow rate of the CNC shot blasting machine; for example, select 5 calibration points during the measurement calibration process, 2kg / min, 4kg / min, 6kg / min, 8kg / min, 10kg / min;

[0032] 2) Place the shot collector 1 on the electronic scale 2 prepared in advance for tare and zero reset;

[0033] 3) Take off the shot collector 1 and place it in the spray box of the CNC shot blasting machine;

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Abstract

The invention provides a method for measuring and calibrating the flow volume and velocity of a numerically controlled shot blasting machine. A shot collector is provided. The flow volume and velocity of blasted shots are calibrated by measuring the mass of shots blasted at different flow velocities at the same time. An effective and simple method for calibrating the flow volume and velocity of a numerically controlled shot blasting machine is provided. Through the method, the precision of flow volume and velocity of a numerically controlled shot blasting machine can be verified, and the influence of flow volume and velocity on the shot blasting intensity is controlled effectively. The method separates collecting from weighing. A collecting and weighing integrated device can also be designed to facilitate detection.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a method for measuring and calibrating the flow velocity of a numerically controlled shot blasting machine. Background technique [0002] Shot peening process is a special processing method of aircraft sheet metal that uses high-speed spherical projectiles to spray the surface layer of the workpiece to cause plastic deformation. It can improve the fatigue resistance, stress corrosion resistance and crack resistance of various metal materials. It is one of the indispensable key technologies in the field of metal wing manufacturing of large and medium-sized civil aircraft. [0003] There are many parameters affecting the shot peening intensity, among which the flow rate of the projectile is one of the main influencing parameters. Its inaccuracy will have a direct impact on the shot peening or shot peening strengthening. In the BAC5730 file of Boeing Company, the special process i...

Claims

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Application Information

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IPC IPC(8): G01P21/02G01F25/00
CPCG01F25/00G01P21/025
Inventor 胡小娇
Owner XIAN AIRCRAFT BRANCH OF XIAN AIRCRAFT INT
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