Clamp and method for removing burrs of central flow channel of aero-engine oil nozzle through abrasive particle flow

Abstract

The invention discloses a clamp and a method for removing burrs of a central flow channel of an aero-engine oil nozzle through an abrasive particle flow. A clamp comprises a first clamp upper mold anda first clamp lower mold which are used for clamping the oil nozzle, wherein a central hole for the abrasive particle flow to enter an inlet is formed in the part, at the position opposite to the inlet of the oil nozzle, of the first clamp upper mold, a baffle is arranged at the position, right opposite to an outlet of the oil nozzle, of the first clamp lower mold, a gap is reserved between the baffle and the outlet, discharging holes are formed in the periphery of the baffle, and the discharging holes are used for allowing the abrasive particle flow flowing out of the outlet of the oil nozzle to flow out of the first clamp lower mold; and a abrasive material is forced to flow out along the inner wall of a conical hole of the oil nozzle by utilizing the damping effect of the baffle on theflowing-out abrasive material, so that the burrs on the inner wall of the conical hole are removed, therefore, the burrs on the whole central flow channel of the oil nozzle can be effectively removed, and the surface smoothness is improved. The clamp is suitable for the abrasive particle flow process, the deburring efficiency and consistency can be improved, and the defects caused by a traditional machining technology are overcome.

Description

Technical field [0001] The invention belongs to aerospace technology, and specifically relates to a clamp and a method for removing burrs in the center flow channel of an aeroengine fuel injection nozzle by using abrasive particle flow. Background technique [0002] With the development of mechanical products in the direction of high precision, miniaturization, and density, the surface quality requirements of products are increasing. The minimum diameter of the center hole of the fuel injection nozzle shown in Figure 1(a) and Figure 1(b) is 0.3mm. At present, the fuel injection nozzle is processed by traditional mechanical processing methods. Glitchy. In view of the fact that most domestic aviation manufacturing companies use traditional mechanical processing of micro-holes, the problem of how to remove the burrs at the center flow channel of the injector has become a difficult point for domestic aviation manufacturing companies to vigorously tackle. At present, most of the dom...

AI Technical Summary

Problems solved by technology

For the fuel injectors shown in Figure 1(a) and Figure 1(b), there are many disadvantages in manual deburring. One is that the burrs at the intersection wall of this type of fuel injector cannot be removed by hand at all. The second is that manual deburring cannot guarantee the consistency of the deburring effect, and it is easy to cause scratches on the center flow channel of the fuel injector

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