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Method for preparing high-precision arc-blade diamond lathe tool

A diamond and arc edge technology, used in turning equipment, metal processing equipment, tools for lathes, etc., can solve the problems of large financial resources and time, low production efficiency, high price, and improve efficiency and edge precision. , high-precision machining, eliminating unstable effects

Inactive Publication Date: 2009-09-16
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the grinding of single crystal diamond turning tools in the world is still done manually by skilled technicians. During the processing, the confirmation of the edge shape accuracy of the cutting edge mainly depends on projectors, microscopes and non-contact shape measurement. Due to the influence of human subjective factors and errors caused by repeated clamping, it is difficult to ensure that the processed diamond turning tools have stable edge shape accuracy and tool surface quality, and the production efficiency is also very low.
As a result, the current single crystal diamond turning tool is far from meeting the market demand in terms of accuracy and delivery cycle, and the accuracy and efficiency of the current single crystal diamond turning tool blade grinding are difficult to meet the market demand
And it takes a lot of money and time to train a mature diamond turning tool grinding technician, so the current market price of high-precision diamond turning tools is relatively high, resulting in an increase in the cost of related industrial products

Method used

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  • Method for preparing high-precision arc-blade diamond lathe tool
  • Method for preparing high-precision arc-blade diamond lathe tool
  • Method for preparing high-precision arc-blade diamond lathe tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Carry out the diamond cutter of preliminarily formed (rough machining) by the inventive method and prepare high-precision circular arc edge diamond turning tool (R0.2mm) based on online image processing, and concrete processing process is as follows:

[0026] (1) Select a roughly machined diamond turning tool with a radius of about 0.205mm, and the shape of the arc edge at the tip has been initially formed, such as figure 2 As shown, install it on the swing table 8 (see figure 1 );

[0027] (2) Complete the initialization of the image acquisition card, control card and other parts, and set the target contour accuracy of the cutting edge of the tool to 0.1 μm;

[0028] (3) Start the image processing system, perform image measurement on the front end of the tool, use the aforementioned image processing method to obtain the contour of the cutting edge, and use the polygonal approximation method to segment the front end arc to obtain the initial (approximate) arc of the c...

Embodiment 2

[0032] Prepare high-precision circular arc edge diamond turning tool (R0.2mm) based on online image processing by the inventive method to diamond turning tool blank (unprocessed, polygon), and concrete processing process is as follows:

[0033] (1) Select a diamond turning tool blank 1 with an unprocessed tip, and its tip shape is as follows: image 3 shown. Mounted on the swivel table 8 (see figure 1 );

[0034] (2) Complete the initialization of various parts such as the image acquisition card and the control card, and set the target contour accuracy of the cutting edge of the tool to 0.1 μm;

[0035](3) Start the image processing system to perform image measurement on the front end of the tool. The contour of the cutting edge is obtained by using the aforementioned image processing method, and after the cutting edge contour polygon of the collected tool front end image is appropriately reduced, the polygon can be segmented as a circular arc, and the initial approximate a...

Embodiment 3

[0040] Prepare the high-precision circular arc edge diamond turning tool (R0.5mm) based on online image processing to the damaged diamond turning tool (indeterminate shape) used by the inventive method, and the specific processing process is as follows:

[0041] (1) Select the diamond turning tool 1 that needs to be trimmed when the cutting edge is damaged, and its tip shape is as follows: Figure 4 shown. Mounted on the swivel table 8 (see figure 1 );

[0042] (2) Complete the initialization of various parts such as the image acquisition card and the control card, and set the target contour accuracy of the cutting edge of the tool to 0.1 μm;

[0043] (3) Start the image processing system to perform image measurement on the front end of the tool. Adopt the aforementioned image processing method to obtain the outline of the cutting edge, which is similar to embodiment 2, and after appropriately reducing the collected tool front end image according to the cutting edge outline...

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Abstract

The invention discloses a method for preparing a high-precision arc-blade diamond lathe tool, and the method comprises the steps: firstly fixing the diamond lathe tool on a work bench which can rotate and swing, fixing a CCD camera above the diamond lathe tool; collecting real-time images of the diamond lathe tool to a computer by an image collection card; extracting contour lines of the arc part which needs to be processed and is arranged at the front end of the diamond lathe tool and the edge line parts at two ends for forming a contour line point group; segmenting the point group of the arc part at the front end from the extracted contour line pint group for obtaining an initial arc center of the contour of a cutting blade of the lathe tool, thereby obtaining the contour error of each point on an arc of the contour of the cutting blade of the lathe tool; adjusting the initial arc center of the lathe tool to be coincided with a rotation center of a grinding system and then fixing; driving the lathe tool to rotate and driving a grinding wheel to feed for processing the arc blade of the lathe tool according to the contour error and position information of each point on the arc. The use of the method can realize the stable, high-efficient and high-precision processing of the arc-blade diamond lathe tool.

Description

technical field [0001] The invention relates to a method for preparing a high-precision arc-edge diamond turning tool, in particular to a method for automatically grinding a high-precision arc-edge diamond turning tool by using an online image processing technology. Background technique [0002] With the increasing demand for ultra-precision machining in the fields of aerospace, energy, automobiles, optoelectronics, and aspheric and free-form surfaces, the demand for high-precision arc-edge diamond turning tools is increasing year by year. At present, most of the grinding of single crystal diamond turning tools in the world is still done manually by skilled technicians. During the processing, the confirmation of the edge shape accuracy of the cutting edge mainly depends on projectors, microscopes and non-contact shape measurement. Due to the influence of human subjective factors and errors caused by repeated clamping, it is difficult to ensure that the processed diamond turn...

Claims

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Application Information

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IPC IPC(8): B24B3/34B24B49/12B24B49/03
Inventor 仇中军房丰洲赵群章
Owner TIANJIN UNIV
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