Thin-wall hole oil sealing device
By combining oxygen-free copper gaskets and polyurethane sealing rings, the problems of easy damage and inapplicability of O-ring seals are solved, achieving axial and radial sealing of ultra-thin pipe diameters and improving sealing effect and durability.
Patent Information
- Application Number
- CN202520665556.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-09
AI Technical Summary
Existing technologies often suffer from O-ring seals that are easily damaged, are not suitable for ultra-thin pipe diameters, and lack radial sealing structures, resulting in poor sealing performance.
Axial sealing is achieved using an oxygen-free copper gasket, which deforms to fit the end face of the workpiece. Radial sealing is achieved using a polyurethane sealing ring, combined with a locking nut for fixation.
It achieves effective sealing of ultra-thin pipe diameters, enhances the durability and sealing effect of the seal, especially the dual seal of axial and radial directions.
Smart Images
Figure CN223894994U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mechanical processing technology, and in particular relates to a thin-walled hole sealing oil device. Background Technology
[0002] In the field of machining, especially in the cutting field, O-rings are usually used to seal the end face of the workpiece during machining. The O-rings achieve sealing of the end face through elastic deformation.
[0003] However, the following problems exist:
[0004] 1. When using O-rings for sealing, the O-rings are easily damaged after being tightened multiple times.
[0005] 2. The O-ring is fixed in the middle of the dovetail groove, which requires a high fixing dimension of the bottom width of the dovetail groove and is not suitable for sealing ultra-thin pipe diameters.
[0006] 3. There is no radial sealing structure during chip removal. Utility Model Content
[0007] The purpose of this utility model is to solve the above problems and provide a thin-walled hole sealing oil device that can be used for ultra-thin pipe diameters and has a radial sealing structure. It includes an oil guide ring, an oil guide groove fixed at one end of the oil guide ring, and a copper pad embedded at the other end. The outer surface of the copper pad extends out of the end face of the oil guide ring and is sealed to the end face of the workpiece by deformation. A sealing pad for radial sealing with the inner hole of the spindle is provided on the outer periphery of the end of the oil guide groove away from the oil guide ring.
[0008] Furthermore, the copper pad is an oxygen-free copper pad.
[0009] Furthermore, the sealing ring is fixed to the outer circumference of the oil guide groove by a locking nut, and the outer diameter of the sealing ring is larger than the outer diameter of the locking nut.
[0010] Furthermore, the oil guide groove is provided with a sealing ring with an external thread on the outer circumference of one end, and the locking nut is a locking sleeve with an internal thread on the inner circumference that mates with the external thread. The sealing ring is fixed to the outer circumference of the oil guide groove by screwing the locking sleeve thread.
[0011] Furthermore, the sealing ring is a polyurethane sealing ring.
[0012] Compared with the prior art, the beneficial effects of this utility model are mainly reflected in the following: This utility model innovatively uses oxygen-free copper for end face sealing, achieves axial sealing by deforming copper to fit the end face of the part, and achieves radial sealing of the workpiece by using a polyurethane radial sealing ring. Attached Figure Description
[0013] Figure 1This is a schematic diagram of the external structure of a thin-walled hole sealing oil device according to the present invention.
[0014] Figure 2 for Figure 1 Schematic diagram of the internal structure of the AA section.
[0015] Among them, 1. oil guide ring; 2. oil guide groove; 3. copper gasket; 4. sealing gasket; 5. lock nut; 6. internal hexagon socket head cap screw. Detailed Implementation
[0016] The following is a more detailed description of a thin-walled hole sealing oil device of the present invention with reference to the schematic diagram, which illustrates the preferred embodiment of the present invention. It should be understood that those skilled in the art can modify the present invention described herein while still achieving the advantageous effects of the present invention. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the present invention.
[0017] like Figure 1 and 2 As shown, a thin-walled hole sealing oil device includes an oil guide groove 2. One end of the oil guide groove 2 is fixed to an oil guide ring 1 by an internal hexagon head screw 6. The other end of the oil guide ring 1 has a recessed groove in which a copper gasket 3 is disposed. The copper gasket 3 is fixed to the end of the oil guide ring 1 by the internal hexagon head screw 6, and the outer surface of the copper gasket 3 extends out of the groove. The copper gasket 3 is made of oxygen-free copper. By extending the copper gasket out of the groove, the front end of the sealing device is made to fit against the workpiece through the copper gasket 3, thereby achieving an axial seal with the workpiece.
[0018] Specifically, by deforming the copper pad 3, the end face of the copper pad 3 is made to fit tightly against the end of the workpiece, thereby achieving axial sealing.
[0019] The other end of the oil guide groove 2 has an external thread on its outer periphery. Adjacent to the external thread, a sealing gasket 4 is provided on the outer periphery of the oil guide groove 2. The sealing gasket 4 is a polyurethane sealing gasket. The sealing gasket 4 is fixed by a locking nut 5, which is a locking sleeve. The inner periphery of the locking sleeve has an internal thread that matches the external thread. By screwing the locking sleeve onto the outer periphery of the oil guide groove 2, the sealing gasket 4 is tightened and fixed on the outer periphery of the oil guide groove 2. The outer diameter of the sealing gasket 4 is larger than the outer diameter of the locking sleeve, so that the tail end of the oil sealing device extends into the inner hole of the main shaft and achieves a radial sealing effect through the sealing gasket 4.
[0020] The above are merely preferred embodiments of this utility model and do not constitute any limitation on this utility model. Any equivalent substitutions or modifications made by those skilled in the art to the technical solutions and contents disclosed in this utility model without departing from the scope of the technical solutions of this utility model shall still fall within the protection scope of this utility model.
Claims
1. A thin-walled orifice sealing oil device, characterized in that, It includes an oil guide ring, one end of which is fixed with an oil guide groove, and the other end is embedded with a copper pad. The outer surface of the copper pad extends out of the end face of the oil guide ring and is sealed to the end face of the workpiece by deformation. The outer periphery of the end of the oil guide groove away from the oil guide ring is provided with a sealing gasket for radial sealing with the inner hole of the spindle.
2. The thin-walled hole sealing oil device according to claim 1, characterized in that, The copper pad is an oxygen-free copper pad.
3. The thin-walled hole sealing oil device according to claim 1, characterized in that, The sealing ring is fixed to the outer circumference of the oil guide groove by a locking nut, and the outer diameter of the sealing ring is larger than the outer diameter of the locking nut.
4. The thin-walled hole sealing oil device according to claim 3, characterized in that, The oil guide groove is provided with a sealing ring. One end of the sealing ring has an external thread on its outer circumference. The locking nut is a locking sleeve. The inner circumference of the locking sleeve has an internal thread that mates with the external thread. The sealing ring is fixed to the outer circumference of the oil guide groove by screwing the locking sleeve thread.
5. The thin-walled hole sealing oil device according to claim 3, characterized in that, The sealing ring is a polyurethane sealing ring.