Turbomolecular pump damper
Technical field
It is specifically a kind of for reducing the vibration generated in turbomolecular pump operating the present invention relates to a kind of dampening arrangement
The device transmitted to scanning electron microscope sample room.
Background technique
The amplification factor of electron microscope is up to hundreds of thousands times, and any vibration of sample can all directly affect image quality,
This requires putting the sample stage of sample to have the characteristics that high stability, but for multi-angle, multiposition observes sample, modern
Electron microscope sample desk is mostly 5 axis cantilever designs, is needed using linear guide, these components have low damping characteristic, can be produced
Raw microvibration.
Scanning electron microscope requires work under vacuum conditions, needs to continue working using turbomolecular pump, molecular pump
Vacuum is obtained by high-speed rotating turbo blade, turbomolecular pump can inherently generate vibration, if in turbomolecular pump and swept
Retouching between electron microscope sample room does not have damping device, can seriously affect image quality.
It is undesirable all to there is damping effect in current vibration reducing measure, and installation is complicated, problem at high cost.
Summary of the invention
The present invention aiming at the above shortcomings existing in the prior art, provides a kind of turbomolecular pump damper.
The present invention is achieved by the following technical solutions.
A kind of turbomolecular pump damper, including flange one, cylinder one, corrugated stainless steel tubing, rubber filling object, cylinder two
And flange two, in which:
Flange one, material are 316L stainless steel, and Laser Welding welding fabrication is used between the flange one and cylinder one;
Cylinder one, material are 316L stainless steel, and laser is respectively adopted between the cylinder one and flange one and corrugated stainless steel tubing
Weld welding fabrication;
Corrugated stainless steel tubing, material are 316L stainless steel, explosive forming, wall thickness 0.25mm ~ 0.35mm, the corrugated stainless steel tubing
Laser Welding welding fabrication is respectively adopted between cylinder one and cylinder two;
Rubber filling object, material are fluorubber, and with corrugated stainless steel tubing using disposable whole cast molding, combining closely becomes
One entirety;
Cylinder two, material are 316L stainless steel, and laser is respectively adopted between the cylinder two and flange two and corrugated stainless steel tubing
Weld welding fabrication;
Flange two, material are 316L stainless steel, and Laser Welding welding fabrication is used between the flange two and cylinder two.
Further, the rubber filling object and corrugated stainless steel tubing are using disposable whole cast molding.
Further, Laser Welding welding fabrication is respectively adopted between the corrugated stainless steel tubing and cylinder one and cylinder two.
Further, Laser Welding welding fabrication is used between the flange one and cylinder one.
Further, Laser Welding welding fabrication is used between the flange two and cylinder two.
Turbomolecular pump damper provided by the invention, by upper and lower two flanges respectively with scanning electron microscope sample
Product room and turbomolecular pump sealingly connect, and by the collective effect of corrugated stainless steel tubing and rubber filling object, can be effectively prevented
The vibration that turbomolecular pump generates during operation is transmitted to scanning electron microscope sample room.
The installation that the present invention completes turbomolecular pump again while solving the problems, such as turbomolecular pump damping is fixed, greatly
Ground simplifies the complexity of assembling process.
Detailed description of the invention
Fig. 1 is structure chart of the invention;
In figure: 1 is flange one, and 2 be cylinder one, and 3 be rubber filling object, and 4 be corrugated stainless steel tubing, and 5 be cylinder two, and 6 be flange
Two.
Specific embodiment
Elaborate below to the embodiment of the present invention: the present embodiment carries out under the premise of the technical scheme of the present invention
Implement, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to following implementation
Example.
Present embodiments provide a kind of turbomolecular pump damper, including flange one, cylinder one, corrugated stainless steel tubing, rubber
Glue filler, cylinder two and flange two, in which:
Flange one, material are 316L stainless steel, and Laser Welding welding fabrication is used between the flange one and cylinder one;
Cylinder one, material are 316L stainless steel, and laser is respectively adopted between the cylinder one and flange one and corrugated stainless steel tubing
Weld welding fabrication;
Corrugated stainless steel tubing, material are 316L stainless steel, explosive forming, wall thickness 0.25mm ~ 0.35mm, the corrugated stainless steel tubing
Laser Welding welding fabrication is respectively adopted between cylinder one and cylinder two;
Rubber filling object, material are fluorubber, and with corrugated stainless steel tubing using disposable whole cast molding, combining closely becomes
One entirety;
Cylinder two, material are 316L stainless steel, and laser is respectively adopted between the cylinder two and flange two and corrugated stainless steel tubing
Weld welding fabrication;
Flange two, material are 316L stainless steel, and Laser Welding welding fabrication is used between the flange two and cylinder two.
Further, the rubber filling object and corrugated stainless steel tubing are using disposable whole cast molding.
Further, Laser Welding welding fabrication is respectively adopted between the corrugated stainless steel tubing and cylinder one and cylinder two.
Further, Laser Welding welding fabrication is used between the flange one and cylinder one.
Further, Laser Welding welding fabrication is used between the flange two and cylinder two.
In the present embodiment, flange one, cylinder one, corrugated stainless steel tubing, cylinder two, flange two is all made of the stainless steel of 316L
It makes, and an entirety is welded by vacuum welding technology, not only ensure that the air-tightness of the present apparatus in this way, but also can effectively subtract
The quality of few number of components and device itself.
Rubber filling object and corrugated stainless steel tubing can effectively be absorbed more in this way using disposable whole cast molding
The shock wave of a wave band improves the stability of sample room.
Connection through the invention, turbomolecular pump can be directly installed on the lower section of sample room, without being fixed on
Elsewhere, installation process is greatly simplified.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring substantive content of the invention.