초록 ▼

A fluid jet cutting system that includes an X-Y axis support table that is adjustable in both the X and Y-axis direction and has frame structures that overhang a centralized support platform assembly. The frame structures include overlapping central openings positioned above an opening defined by th

A fluid jet cutting system that includes an X-Y axis support table that is adjustable in both the X and Y-axis direction and has frame structures that overhang a centralized support platform assembly. The frame structures include overlapping central openings positioned above an opening defined by the platform assembly. A driving system such as a linear motor system shifts the support table. A Z-axis holder is provided for supporting a nozzle head assembly in a central area of the opening defined by the platform assembly. The nozzle head assembly has a main body that is fixed in position or limited to Z-axis movement with or without fourth and fifth axis rotation capability. Workpieces are supported by rails or the like within the open area. The nozzle head assembly directly receives abrasive through a plurality of abrasive ports which directly receive branch tubes of a multi-branch abrasive feed assembly. The fluid jet energy is conserved by the abrasive flow arrangement, the avoidance of lengthy tubing, the providing of uninterrupted high pressure fluid conduits, and a gas forced abrasive particle stream when particles are utilized. The avoidance of having the nozzle head assembly shift along an X-Y plane allows for a stationary catcher tank which can be rolled into and out of position on a roller carriage. The system further includes a filter which is internally positioned within an attenuator and bellville seal/return members provided in respective chambers of a dual action intensifier.

대표청구항 ▼

[ What is claimed is:] [1.] A nozzle head assembly, comprising:a main body having a main body fluid passageway and at least three abrasive ports formed therein, said abrasive ports being circumferentially spaced about said main body and each of said ports both independently opening into the fluid pa

[ What is claimed is:] [1.] A nozzle head assembly, comprising:a main body having a main body fluid passageway and at least three abrasive ports formed therein, said abrasive ports being circumferentially spaced about said main body and each of said ports both independently opening into the fluid passageway and out at an exterior surface of said main body, and each of said ports having a respective central axis, each central axis forming an acute angle with a central axis of said main body fluid passageway; anda nozzle conduit extending out away from said main body and being in fluid communication with said main body fluid passageway,and said nozzle assembly defining a mixing chamber within said main body fluid passageway, and said nozzle assembly further comprising first, second and third abrasive flow tubes respectively received within said abrasive ports and which abrasive flow tubes extend out from said main body along a common axis with respect to a central axis of said at least three abrasive ports formed in said main body.