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Thin-wall special-shaped curved surface polishing device and method based on static pressure principle polishing tool

A technology for polishing tools and special-shaped surfaces, applied in manufacturing tools, optical surface grinders, grinding/polishing equipment, etc., can solve the problems of low processing efficiency, reducing edge effects, poor uniformity, etc., to improve processing efficiency and reduce abrasive tools. The number of dressing times, the effect of improving uniformity

Pending Publication Date: 2019-09-17
INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The object of the present invention is to provide a thin-wall special-shaped curved surface polishing device and method based on the principle of static pressure polishing tools to solve the problems of low processing efficiency, poor uniformity, easy damage to the initial surface shape, and It is difficult to obtain a high-precision surface, to realize the uniform application of loads on thin-walled special-shaped surfaces, to ensure the uniformity of removal, and to greatly reduce the edge effect

Method used

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  • Thin-wall special-shaped curved surface polishing device and method based on static pressure principle polishing tool
  • Thin-wall special-shaped curved surface polishing device and method based on static pressure principle polishing tool
  • Thin-wall special-shaped curved surface polishing device and method based on static pressure principle polishing tool

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Effect test

Embodiment 1

[0038] Such as figure 1 and figure 2 The shown thin-wall special-shaped curved surface polishing device based on the principle of static pressure polishing tool is used for polishing the outer circle of a thin-wall cylinder, including a nozzle 7 for ejecting polishing liquid 8, and also includes a fluid cylinder 2 connected to A plurality of pistons 3, the movement direction of the pistons 3 is towards the curved surface to be polished, and the output end of the pistons 3 is provided with a polishing abrasive 4, and the polishing abrasive 4 matches the curved surface to be polished.

[0039] The fluid cylinder 2 in this embodiment is an air cylinder, which specifically includes a main shaft, a cylinder, a piston 3, a polishing abrasive 4, a workpiece 5, a compressed gas 6, a polishing liquid nozzle 7, a polishing liquid 8, abrasive grains 9, and a clamp 10. The entire cylindrical polishing tool is mainly composed of two parts: the main part is the cylinder, the main function...

Embodiment 2

[0044] Such as image 3 and Figure 4 The shown thin-wall special-shaped curved surface polishing device based on the principle of static pressure polishing tool is used for polishing the inner circle of a thin-walled cylinder. The difference from Example 1 is that the entire polishing device is placed inside the workpiece. When the cylinder is pressurized, the piston 3 is outward. stick out.

[0045] Preferred:

[0046] In this embodiment, the polishing abrasive can be polyurethane, asphalt, or polishing cloth, which can be selected according to different processing surface quality and removal efficiency requirements.

[0047] The polishing abrasives in this embodiment can be made of polyurethane, asphalt, and polishing cloth into cylindrical, conical, and spherical abrasives, which are specifically designed according to the requirements of the rotationally symmetrical curved surface to be processed.

[0048] The number of pistons in this embodiment can be 1-20, depending ...

Embodiment 3

[0054] A method for polishing a thin-walled curved surface of a polishing tool based on the principle of static pressure, comprising the following steps:

[0055] (a) Use clamp 10 to clamp polished workpiece 5, align workpiece 5 with polishing abrasives 4 matched with the curved surface to be polished, each polishing abrasive 4 is driven by a piston 3, and all pistons 3 are driven by the same Fluid cylinder 2 drive;

[0056] (b) Fill the fluid cylinder 2 with compressed fluid of a certain pressure, so that each polishing abrasive tool 4 is in contact with the polished curved surface;

[0057] (c) The rotating fixture 10 drives the workpiece 5 to rotate, and at the same time drives all the pistons 3 and polishing abrasives 4 to perform linear reciprocating motion synchronously.

[0058] Preferably, in step (c), the nozzle 7 is moved to a suitable position of the contact part between the workpiece 5 and the polishing abrasive 4, and the polishing liquid 8 containing the abrasiv...

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Abstract

The invention discloses a thin-wall special-shaped curved surface polishing device and method based on a static pressure principle polishing tool. The thin-wall special-shaped curved surface polishing device comprises a nozzle, wherein the nozzle is used for spraying polishing liquid; the device is further comprises a fluid cylinder, wherein a plurality of pistons are connected to the fluid cylinder, and the output directions of the pistons face a polished curved surface, polishing grinding tools is arranged at the output ends of the pistons, and the polishing grinding tools are matched with the polished curved surface. The invention aims to provide the thin-wall special-shaped curved surface polishing device and method based on the static pressure principle polishing tool so as to solve the problems that a polishing method for the thin-wall special-shaped curved surface in the prior art is low in machining efficiency and poor in uniformity and that the initial surface shape is easy to be damaged and the high-precision surface is difficult to obtain, so that the uniform application of the thin-wall special-shaped curved surface loading is realized, the uniformity of removal is ensured, and meanwhile, the edge effect is greatly reduced.

Description

technical field [0001] The invention relates to the field of optical element polishing, in particular to a thin-wall special-shaped curved surface polishing device and method based on static pressure principle polishing tools. Background technique [0002] Thin-walled special-shaped curved surface is an important component in major optical engineering and national defense weapon systems. It is developing in the direction of miniaturization, complex shape, material specialization, and non-destructive surface. Become the bottleneck of my country's science and technology development. For example: the diamond film hood used in long-wave infrared long-range air-to-air missiles is designed with superhard materials and high-steep aspheric structures, which require sub-micron-level surface accuracy and nano-level surface roughness; for inertial navigators— The hemispherical resonator in the hemispherical resonant gyroscope is designed with a narrow and deep cavity special-shaped sur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B13/005B24B57/02B24B13/01B24B13/02
CPCB24B13/0055B24B57/02B24B13/01B24B13/02
Inventor 张云飞黄文李凯隆陈立郑永成张建飞周涛田东樊炜刘军
Owner INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS
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