CN101362317A - Special-shaped diamond sintering grinding block and manufacturing method thereof - Google Patents
Special-shaped diamond sintering grinding block and manufacturing method thereof Download PDFInfo
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- CN101362317A CN101362317A CNA2008100589129A CN200810058912A CN101362317A CN 101362317 A CN101362317 A CN 101362317A CN A2008100589129 A CNA2008100589129 A CN A2008100589129A CN 200810058912 A CN200810058912 A CN 200810058912A CN 101362317 A CN101362317 A CN 101362317A
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Abstract
The invention discloses a manufacturing method of a heterotypic diamond grinding block. The diamond grinding block consists of a steel matrix and a sintered grinding block, and the work cross section is a continuous non-standard arc formed by eight curves. The manufacturing method has the advantages that the working face of the grinding block can be accurately manufactured according to arbitrary curves provided by a drawing or the sample plate of a work piece, the forming accuracy of the surface shape of the curved surface of the obtained non-standard arc is higher, and the work piece can be directly processed; after a dust dissolving tank and a limber hole are added, the processing performance of the diamond sintered abrasive brick is further improved, both the high precision geometric surface shape and the lower surface roughness of the processed part can be ensured.
Description
One, technical field
The present invention relates to a kind of special-shape diamond abrading block and manufacture method thereof, relate generally to physics, optics and mechanical manufacturing field.
Two, background technology
The face shape more complicated of mobile phone glass cover plate, general all arc surfaces of the criteria of right and wrong, and existing diamond sintering grinding block, its working face manufactures plane, sphere or the arc surface of rule mostly, for example No. the 94114204.3rd, Chinese patent and the method announced for 03105384.X number, all focus on the aspect in service life that how to improve diamond grinding block, and do not mentioned the manufacture method of special-shape diamond abrading block.In addition, if use high-grade numerical control single-point diamond lathe to process nonstandard arc surface glass cover-plate, then exist one to be that the equipment input is too high; The 2nd, drawback such as programme and the process-cycle is long, efficient is low loaded down with trivial details, therefore, adopt the diamond sintering grinding block of nonstandard curved surface, make the mobile phone glass cover plate in conjunction with conventional machining process, be a kind of more economic and easy mode of production.Yet, even experienced pincers worker also is difficult to produce and the very high pressing mold of the desired nonstandard curved surface face type goodness of fit, to realize the batch process of complicated face type diamond grinding block accurately, fast.
Three, summary of the invention
The invention provides a kind of special-shaped diamond grinding block with and preparation method thereof, according to given drawing or workpiece model (being prototype), with image measurement instrument, computer, wire cutting machine tool is machining tool, the light, mechanical, electrical method that combines of integrated use, at first workpiece model or the given nonstandard curved surface of drawing are carried out the accurate demarcation of coordinate, produce nonstandard circular arc camber pressing mold on this basis, adopt the hot pressing sintering process at last, be embodied as and accurately make the purpose that complicated face type diamond burns abrading block in batches.
Advantage of the present invention: with a kind of comparatively simple method, solve the making difficult problem of complicated nonstandard arc surface diamond sintering grinding block, make the manufacturing of the nonstandard arc surface workpiece of hard brittle material avoid using the complicated processes of single-point diamond lathe in machining, operating efficiency obviously improves, and has guaranteed being identical of workpiece face shape and drawing or workpiece model simultaneously.In addition, in the diamond grinding layer, increase molten bits groove and limbers after, improved the grinding efficiency of abrading block, the effect that can play cooling, lubricate workpiece in the use helps further to improve the surface quality of workpiece.
Above-mentioned purpose of the present invention mainly is achieved by following scheme: diamond grinding block comprises metallic bond 2 and steel matrix 3, the connected mode of described matrix and metallic bond is by the hot pressing sintering process, directly metallic bond 2 is compressed on the steel matrix 3.Before compacting, matrix is had longitudinal and transverse three staggered dovetail grooves in advance, guaranteed being connected firmly between metallic bond and the matrix, reliably.
The manufacture method of described metallic bond face type is: according to given drawing or workpiece model (being prototype), be machining tool with image measurement instrument, computer, wire cutting machine tool, the light, mechanical, electrical method that combines of integrated use: its step is
(1) with the image measurement instrument workpiece model outline line is imported computer;
(2) in computer, utilize AutoCAD software that the outline line coordinate is accurately demarcated;
(3) with in the program control computer of measuring of coordinate figure lead-in wire cutting machine, directly cut out nonstandard curved surface metal stamping and pressing or electrode, or cut out nonstandard curve metallic spatula earlier, cut out nonstandard curved surface graphite pressing mold with scraper again.
The material of described pressing mold is generally graphite or resistant to elevated temperatures metal material, can reduce the surface roughness of metallic spatula or graphite pressing mold by artificial grinding method.Can access product surface good fineness is arranged.
Diamond particles in the described metallic bond is any one in surperficial titanizing, nickel plating and other the artificial plating clothing diamond.The diamond particles of plating not only improves crushing strength, can also strengthen the bond strength between diamond particles and the carcass, can improve the service life of diamond tool.
Metallic bond and diamond are adopted manual batch mixing or mechanical batch mixing by certain proportioning.Assembly jig, as dip mold, the mixed-powder and shakeouing of packing into covers nonstandard curved surface graphite (or metal) pressing mold, first precompressed on press with steel matrix.Mould is placed sintering machine, the pressurization that heats up, to the sintering temperature heat-insulation pressure keeping, cooling back die sinking is taken out.
On spark-erosion machine tool, process abrading block,, on bond, leave chip pocket 4, on product, get through water hole 5 with copper electrode with copper sheet according to the requirement of using.
Adopt above-mentioned method at last, be embodied as the purpose of accurately making complicated face type diamond sintering grinding block in batches.
Four, description of drawings:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a vertical view of the present invention.
Five, the specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing.
Diamond grinding block comprises diamond 1, metallic bond 2 and steel matrix 3, and the connected mode of matrix and metallic bond is by the hot pressing sintering process, directly metallic bond 2 is compressed on the steel matrix 3.On bond, open chip pocket 4 with copper sheet, on product, get through water hole 5 with copper electrode.
Before disclosure and description the present invention, should be appreciated that the present invention is not limited to these ad hoc structures disclosed herein, procedure of processing or material, but can expand to other equivalent that the those of ordinary skill of correlative technology field is approved.Should also be clear that term used herein only is used to describe certain specific embodiments, and be not to be intended to limit the invention.
A kind of special-shaped diamond sintering grinding block, its system step is as follows:
1, according to given electronic edition drawing (pressing the drawing of 1:1), on computers with the required curve of mapping software intercepting.
2, on 0.3mm length, marking a coordinate points on the gained curve, obtain a series of coordinates.
3, in the program control computer software with the coordinate Input Online cutting machine demarcated, cutting out nonstandard circular arc line metal blade with the method for line cutting.
4, the blade with well cutting scrapes on milling machine, makes the seaming chuck (milling cutter on the milling machine can not rotate, and can only move forward and backward) of nonstandard circular arc camber graphite grinding tool.
5, set of molds is installed, as push-down head, add the metal powder and the abrasive material that mix, the seaming chuck compression moulding in the hot pressed sintering machine of packing into after shakeouing with matrix.
6, cool to 400 ℃ with the furnace after, take out pressing mold cool to room temperature in air, abrading block is taken out in form removal.
7, on spark-erosion machine tool, abrading block is carried out grooving (4 in the accompanying drawing 1), punching (5 in the accompanying drawing 1).
8, finish cleaning, check, packing and warehouse-in work.
A kind of special-shaped diamond sintering grinding block, its system step is as follows:
At first, on the image measurement instrument, measure the nonstandard outline line of drawing or the projection line of workpiece, and this line is imported among the computer graphics software according to given paper drawing or workpiece model;
All the other steps with the institute among the embodiment 1 in steps.
Claims (8)
1, a kind of special-shape diamond abrading block is characterized in that it is made up of diamond sintering grinding block and matrix, and manufacture method may further comprise the steps:
(1) makes the graphite assembling die;
(2) with batch mixer or manual mixing powder to be sintered;
(3) assembly jig, as dip mold, the mixed-powder and shakeouing of packing into covers nonstandard curved surface graphite (or metal) pressing mold with steel matrix;
(4) mould is placed sintering machine, the pressurization that heats up, to the sintering temperature heat-insulation pressure keeping, cooling back die sinking is taken out;
(5) abrading block is carried out grooving, punching.
2, diamond grinding block according to claim 1 is characterized in that the nonstandard circular arc that the diamond grinding layer cross section is formed for the multistage curve.
3, diamond grinding block according to claim 1 is characterized in that used diamond particles is any one in surperficial titanizing, nickel plating and other the artificial plating clothing diamond.
4, diamond grinding block according to claim 1 is characterized in that diamond grinding layer and steel matrix are to adopt pressure sintering directly around tying together, and matrix has longitudinal and transverse three staggered dovetail grooves in advance.
5, diamond abnormity abrading block according to claim 1 is characterized in that step (5) adopts spark-erosion machine tool processing.
6, diamond abnormity abrading block according to claim 1, it is characterized in that the mixed-powder of the powder to be sintered of step (2) and step (3) can be waited until the mixture of several powder in the material for copper, tin, iron, nickel, cobalt, carbide, diamond, cubic boron nitride.
7, nonstandard curved surface according to claim 1 and 2, it is characterized in that, utilize image measurement instrument, computer, wire cutting machine tool to workpiece model or the given nonstandard curved surface of drawing, the method for accurately duplicating on pressing mold, electrode or diamond grinding block obtains, and may further comprise the steps:
(1) with the image measurement instrument workpiece model outline line is imported computer;
(2) in computer, utilize AutoCAD software that the outline line coordinate is accurately demarcated;
(3) with in the program control computer of measuring of coordinate figure lead-in wire cutting machine, directly cut out nonstandard curved surface metal stamping and pressing or electrode, or cut out nonstandard curve metallic spatula earlier, cut out nonstandard curved surface graphite pressing mold with scraper again.
8,,, can reduce the surface roughness of metallic spatula or graphite pressing mold by artificial grinding method to step (3) according to the described method of claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100589129A CN101362317A (en) | 2008-09-12 | 2008-09-12 | Special-shaped diamond sintering grinding block and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100589129A CN101362317A (en) | 2008-09-12 | 2008-09-12 | Special-shaped diamond sintering grinding block and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN101362317A true CN101362317A (en) | 2009-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008100589129A Pending CN101362317A (en) | 2008-09-12 | 2008-09-12 | Special-shaped diamond sintering grinding block and manufacturing method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104440605A (en) * | 2014-11-11 | 2015-03-25 | 河南富耐克超硬材料股份有限公司 | Polygonal superhard abrasive compound and method for manufacturing abrasive tool with same |
| CN104875131A (en) * | 2015-05-28 | 2015-09-02 | 江苏耐尔特钻石有限公司 | Diamond millstone |
| CN105965879A (en) * | 2016-06-28 | 2016-09-28 | 郑州金海威科技实业有限公司 | Elastic abrasive block assembly line |
| CN106272989A (en) * | 2016-08-16 | 2017-01-04 | 河南涵信新材料科技有限公司 | A kind of diamond segment and preparation method thereof, diamond segment cold stamping die, diamond saw blade |
-
2008
- 2008-09-12 CN CNA2008100589129A patent/CN101362317A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104440605A (en) * | 2014-11-11 | 2015-03-25 | 河南富耐克超硬材料股份有限公司 | Polygonal superhard abrasive compound and method for manufacturing abrasive tool with same |
| CN104440605B (en) * | 2014-11-11 | 2017-08-25 | 富耐克超硬材料股份有限公司 | A kind of superhard abrasive compound of polygonal, the method for preparing using the abrasive material grinding tool |
| CN104875131A (en) * | 2015-05-28 | 2015-09-02 | 江苏耐尔特钻石有限公司 | Diamond millstone |
| CN105965879A (en) * | 2016-06-28 | 2016-09-28 | 郑州金海威科技实业有限公司 | Elastic abrasive block assembly line |
| CN106272989A (en) * | 2016-08-16 | 2017-01-04 | 河南涵信新材料科技有限公司 | A kind of diamond segment and preparation method thereof, diamond segment cold stamping die, diamond saw blade |
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Open date: 20090211 |