Abrasive water nozzle inner hole grinding machining fixture and method
A technology of abrasive water nozzles and inner holes, which is applied in the direction of manufacturing tools, grinding workpiece supports, metal processing equipment, etc., and can solve the problems of poor surface accuracy of the inner diameter of abrasive water nozzles
Inactive Publication Date: 2016-09-21
DALIAN JIAOTONG UNIVERSITY
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Problems solved by technology
[0006] According to the technical problem of the poor surface precision of the inner diameter of the abrasive water nozzle proposed above, a jig for grinding the inner hole of the abrasive water nozzle and a method for grinding the inner hole thereof are provided
Method used
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Embodiment Construction
[0024] Such as figure 1 Shown, a kind of jig for grinding the inner hole of the abrasive water nozzle, the jig includes a hollow chamber for fixedly installing the abrasive water nozzle 7, and the hollow chamber is driven by the upper driving piston 2 and the lower The driving piston 9 is divided into an upper abrasive chamber 1, a lower abrasive chamber 10, and a middle working area; the middle working area is provided with a disc seat 6 clamped and fixed on the side wall of the hollow chamber, and the manual pressure sleeve 3 is inserted To the upper opening end of the jacket 4 and clamped and fixed on the upper part of the disc base 6 through the outer edge of the jacket 4, the gap between the inner hole I of the lower part of the jacket 4 and the outer diameter of the abrasive water nozzle 7 Cooperate; between the manual pressure sleeve 3 and the jacket 4, there is also an open bushing 5, the diameter of the inner hole II of the open bushing 5 is larger than the outer dia...
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The invention discloses an abrasive water nozzle inner hole grinding machining fixture. The abrasive water nozzle inner hole grinding machining fixture is characterized by comprising a hollow chamber used for fixing and installing an abrasive water nozzle, and the hollow chamber is divided into an upper abrasive chamber body, a lower abrasive chamber body and a middle working area through an upper driving piston and a lower driving piston; the middle working area is provided with a plate base, a manual pressing sleeve, an open bushing and a clamping sleeve; a first inner hole in the lower portion of the clamping sleeve is in clearance fit with the outer diameter of the abrasive water nozzle; and when the fixture operates, the middle working area filled with diamond micro powder abrasives is extruded by the upper driving piston and the lower driving piston, the open bushing is pressed by the manual pressing sleeve to fix the abrasive water nozzle inside the fixture, and an abrasive water nozzle inner hole is machined and ground through the diamond micro powder abrasives. The invention further discloses a method for machining the abrasive water nozzle inner hole. According to the abrasive water nozzle inner hole grinding machining fixture and method, the abrasive water nozzle is clamped and fixed through the special fixture, and the smoothness of the abrasive water nozzle inner hole is improved through the diamond micro powder abrasive grinding machining process, so that the abrasion resistance of the abrasive water nozzle is good, and the service life of the abrasive water nozzle is prolonged.
Description
technical field [0001] The invention belongs to the field of grinding of deep and small holes, and in particular relates to a jig for grinding of an inner hole of an abrasive water nozzle for cutting and a method for grinding of the inner hole. Background technique [0002] Abrasive water nozzle is one of the key components of high-pressure abrasive water jet equipment. Its cutting performance and service life have a great influence on the cutting efficiency and economic benefits of high-pressure abrasive water jets. For a long time, the high-pressure abrasive water jet nozzle has been troubled by the water jet industry in my country. So far, the design and service life of the abrasive water jet nozzle for cutting have not yet reached a satisfactory level. The surface quality of the inner diameter of the abrasive water nozzle has an impact on the processing quality and the service life of the nozzle. [0003] Nozzles play an important role in the abrasive waterjet cutting ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B24B31/00B24B41/06
CPCB24B31/006B24B41/06
Inventor 张凤莲朱静阎晓琳廖青梅李娇曹雪芝
Owner DALIAN JIAOTONG UNIVERSITY