Tool for installing an O-shaped ring on inner wall of small hole and using method thereof
A technology of O-rings and tooling, which is applied in the field of hydraulic valve assembly process equipment, can solve the problems that it is difficult to place the sealing ring in place, difficult to hold the installation, and unable to place the sealing ring from it, so as to achieve fast and accurate installation of the O-ring, Easy to break down, simple structure effect
Active Publication Date: 2012-11-14
BEIJING TIANMA INTELLIGENT CONTROL TECH CO LTD
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Problems solved by technology
In the existing precision hydraulic valves, the length of the usual fluid sleeve is only about 4-5cm, the diameter of the inner hole is no more than 2-5mm, and the outer diameter of the elastic sealing ring is only about 3-4.5mm, which is very small. parts, the installation is more difficult to handle
At the same time, since the position where the elastic sealing ring is installed in the sleeve is close to the liquid outlet hole, and the diameter of the liquid outlet hole is usually less than 2mm, the sealing ring cannot be placed therein. Bore placement, difficult to place seal in place without proper tooling
Method used
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[0024] See attached figure 1 , which describes a preferred embodiment of the tooling for installing an O-ring on the inner wall of a small hole with a diameter of less than 5 mm according to the present invention. The tooling is made of metal materials, including a head and a tail. The head is a cylinder, the outer surface of the tail is basically a cylinder, and one end is a slope. The head and the tail are connected coaxially through the slope. It is preferable to set the tail in the tail Central hole, insert the head into the central hole of the tail to connect it firmly, the angle α between the inclined plane and the axis of the tail and the head is preferably 20°~40°, the O-ring has an inner hole, which can be inserted into the head And push it to the position of the inclined surface, so that the O-ring is in parallel contact with the inclined surface, see attached figure 2 , the diameter of the head is preferably slightly smaller than the inner diameter of the O-ring t...
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Abstract
The invention discloses a tool for installing an O-shaped ring on the inner wall of a small hole with the diameter of less than 5mm, wherein the cross section of the O-shaped ring is a cylindrical annular flexible ring; the tool is made of metal materials, and comprises a head part and a tail part; the head part is a cylinder body, and the diameter of the head part is less than the inner diameter of the O-shaped ring; one end of the tail part is a cylinder body with an oblique surface, and is provided with a tail part central hole; one part of the head part penetrates through the oblique surface and is fixedly arranged in the tail part central hole; the diameter of the tail part is less than the diameter of the small hole and is greater than the inner diameter of the O-shaped ring; and the oblique surface and the tail part axis form an included angle alpha of 40 degrees-60 degrees.
Description
technical field [0001] The invention relates to a hydraulic valve assembly process equipment, in particular to a process equipment for installing an O-ring on the inner wall of a small hole and a use method thereof. Background technique [0002] As a commonly used component in hydraulic and control systems, valves are used in many fields. Common valves include check valves, proportional valves, etc. With the development of technology, the precision requirements of the required hydraulic system are gradually increasing, the volume of the corresponding valve is gradually miniaturized, and the internal structure of the valve is gradually complicated. There are more and more parts that make up the valve, and the volume of the parts is getting smaller and smaller. This makes it difficult or even impossible to complete the actions that were easy to do manually when assembling the valve, which seriously affects the production and assembly of the valve. efficiency. [0003] The li...
Claims
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Inventor 王巍宋艳亮王伟
Owner BEIJING TIANMA INTELLIGENT CONTROL TECH CO LTD