Unlock instant, AI-driven research and patent intelligence for your innovation.

Assembly and device for forming Gaussian removal function during jet polishing

A Gaussian removal function, Gaussian technology, applied in used abrasive processing devices, explosion generating devices, abrasives, etc., can solve problems such as difficulty in accurately controlling the removal amount, high frequency error, and the removal function does not have strict symmetry. , to achieve the effect of improving resource utilization efficiency

Pending Publication Date: 2020-08-04
INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the condition of vertical incidence, there will be a bulge in the middle area of ​​the polishing spot. From the cross-section, the polishing spot is in the shape of "W". This kind of polishing spot is easy to cause high-frequency errors when used in optical surface processing.
However, the polishing spots produced by oblique incidence are in the shape of a "crone moon". This kind of removal function does not have strict symmetry, and it is difficult to accurately control the removal amount during processing.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Assembly and device for forming Gaussian removal function during jet polishing
  • Assembly and device for forming Gaussian removal function during jet polishing
  • Assembly and device for forming Gaussian removal function during jet polishing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0038] Implementation Case 1: A component that forms a Gaussian removal function in jet polishing, including a nozzle 1 for tilting rotation, the intersection point formed by the central axis of the nozzle 1 and the central axis of its tilting rotation is located above the surface of the workpiece 8; Under the premise of certain conditions such as angle, polishing liquid concentration and incident pressure, the diameter d of the path circle formed by the jet beam 2 on the surface of the workpiece 8 is one of the key process parameters. However, in the actual processing process, it cannot be directly measured and compared. Control d, and d directly corresponds to the height h of the nozzle 1 from the workpiece 8. Therefore, finding the appropriate diameter d under different process parameters and converting it into determining the height h of nozzle 1 under the same conditions, the height h of nozzle 1 will be directly reflected on the coordinate axis of the machine tool, so it ...

Embodiment example 2

[0040] Example 2: A device for forming a Gaussian removal function in jet polishing, including a body, the body includes a rotating shaft 4, a standard cone 3 is arranged on the lower end of the rotating shaft 4 along the axis direction, and at least one side of the standard cone 3 is obliquely provided with a nozzle 1. The center of the rotating shaft 4 is provided with an inflow channel for circulating the polishing fluid. The lower end of the inflow channel communicates with the nozzle 1. The polishing fluid forms a jet stream 2 at the end of the nozzle 1.

[0041] The intersection point of the jet beam 2 and the axis of rotation 4 should be located above the surface of the workpiece 8, and the distance between the intersection point and the surface of the workpiece 8 is 0-1000 μm.

[0042] The included angle between the nozzle 1 and the center line of the standard cone 3 is an acute angle, which is greater than 0° but less than 90° right angle. One side of the standard cone...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an assembly and device for forming a Gaussian removal function during jet polishing, and belongs to the technical field of optical manufacturing. The device comprises a body, wherein the body comprises a rotating shaft, the lower end of the rotating shaft is provided with a standard cone in an axial direction, at least one side of the standard cone is obliquely provided with a nozzle, the center of the rotating shaft is provided with an inflow channel for circulating of a polishing liquid, the lower end of the inflow channel communicates with the nozzle, the polishing liquid forms a jet beam at the tail end of the nozzle, an intersection point of the jet beam and a rotating shaft line shall locate above the surface of a workpiece, the intersection point is distancedfrom the surface of the workpiece by 0-1000 microns, the Gaussian removal function is generated by adopting an oblique incidence rotary sweep mode, by adjusting the height of the nozzle to the surface of the workpiece on the rotating shaft, the standard cone, the nozzle and a measuring head, a certain-height Gaussian curve can be formed on the surface of a material, in addition, the polishing liquid can be collected, and is recycled through a liquid supply pump, and the resource utilization efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of optical manufacturing, in particular to a device for forming a Gaussian removal function in jet polishing. Background technique [0002] As a new type of ultra-precision processing technology, FJP has broad application prospects and important research significance in the processing of optical components with high precision, high cleanliness and low subsurface damage. FJP uses a polishing liquid medium with initial pressure (usually a mixture of abrasives and water or pure water) to flow through the nozzle to form a jet beam. The jet beam reaches the surface of the material at a certain speed, and utilizes the shear force of the abrasive or water on the material. to achieve removal. Compared with traditional polishing technology and other ultra-precision processing technologies, the main features and advantages of FJP are reflected in the following three aspects. First, due to the low pressure of the jet...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B24C1/08B24C9/00B24C5/04
CPCB24C1/08B24C9/00B24C9/006B24C5/04
Inventor 李建孙鹏飞张连新李强周涛曹鹏辉
Owner INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS