CN1562543A - Technique for manufacturing modified reproduced milling cutter for circuit board - Google Patents
Technique for manufacturing modified reproduced milling cutter for circuit board Download PDFInfo
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- CN1562543A CN1562543A CN 200410059996 CN200410059996A CN1562543A CN 1562543 A CN1562543 A CN 1562543A CN 200410059996 CN200410059996 CN 200410059996 CN 200410059996 A CN200410059996 A CN 200410059996A CN 1562543 A CN1562543 A CN 1562543A
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- jack
- knife
- milling cutter
- blade
- handle
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Abstract
The invention relates to a milling cutter for circuit board, especially to a technique for manufacturing modified reproduced milling cutter for circuit board. The knife edge is made from a hard alloy, while the knife handle is made from the ordinary steel; a jack is processed at one end of the knife handle, and grooves, etc. are arranged on the hole wall of the jack; the scolder are filled into the jack or the groove, as well as the gap between the knife edge and the jack; the combination portion of the knife edge is embeded into the jack of the knife handle, in order to clamp and locate to make both of them concentric; the combining site of the knife handle and the knife edge is heated, and applied with pressure oppositely, which allows the combination portion of the knife edge penetrate into the bottom of the knife handle jack; when the filled scolder are melt, the assistant scolder are filled, stoping heating after filling up, quiting the knife handle and the knife edge from the position and oppositely pressure exerting state after they are cooled, then the knife edge welded firmly in the jack. In the aid of the designs such as the mill flat horizontal surface on combination portion of the knife handle jack, groove or knife edge, the firmly welded area between the knife edge and the knife handle has been enlarged, the welding is made to be more strong, the cose is reduced, and the milling cutter life has been prolonged.
Description
Technical field
The present invention relates to the circuit board milling cutter, especially relate to the circuit board milling cutter manufacture craft of improved regeneration.
Background technology
Circuit board milling cutter integral body all was to be made by the high-hardness tungsten carbide material in the past, when being used for promptly disposing with scrap after the blade position wearing and tearing of clipper circuit plate and boring.But since in recent years tungsten carbide there is lack of raw materials, the milling cutter cost of manufacture is surging, traditional milling cutter manufacturing and wearing and tearing post-processing approach be value-for-money not obviously.
In the prior art, the milling cutter that to scrap reclaims the technical method of recasting, be the handle of a knife that will damage and have value attrition process more haply, make new blade 11, and engage with a handle of a knife 12 of making by materials such as stainless steels, make new milling cutter, reach the purpose that reduces production costs.Common combination has two kinds at present:
One. face bonding connection: utilize scolder that blade and handle of a knife are directly welded.Because milling cutter needs to carry out work under high rotating speed and hyperbaric environment, the phenomenon of weld fracture and fly cutter takes place in milling cutter in actual use that utilize the plane welding method to make through regular meeting.
Two. the chuck combined techniques: it is smaller or be equal to the jack of blade to make a call to diameter at the handle of a knife faying face, and blade is pressed into, for reaching close-connected effect and firm chucking power, it is just right that the jack degree of depth of handle of a knife and diameter design should cooperate with blade 11, needs meticulousr technology just can finish.In addition, appropriate even jack is made, because under the stressed working environment of high speed, handle of a knife and blade joint portion get loose because of generation dither and high temperature lose rigidity gradually.
Summary of the invention
The objective of the invention is to solve the problem of circuit board milling cutter not prison welding and easy fly cutter, provide a kind of saving resource, the circuit board milling cutter of safe and reliable improved regeneration.
The present invention is achieved in that improved regeneration circuit board milling cutter manufacture craft, and it is characterized in that: it comprises the following steps:
(1) make blade 2 with carbide alloy, described blade 2 comprises a blade joint portion 22, makes handle of a knife 3 with stainless steel, and described handle of a knife has a cone head 311.
(2) process jack 32 at an end center of handle of a knife greater than blade joint portion 22.
(3) in jack 32, insert brazing solder.
(4) blade 2 is implanted in the jack 32 of handle of a knife,, made both concentric with the anchor clamps location.
(5) heated in the handle of a knife 3 and 22 of the joint portions of blade 2, when heating, blade 2 and handle of a knife 3 are exerted pressure in opposite directions, make blade 2 be deep into the bottom of cone head 31.
(6) when the scolder of inserting melts, will assist scolder to insert to the slit 36 of jack 32, groove 33 or blade 2 and jack 32 again, after filling up, stop to heat.
(7) after the cooling handle of a knife 3 and blade 2 are withdrawed from location and the state of exerting pressure in opposite directions, described blade 2 is welded in jack interior 32.
(8) with the milling cutter grinding of solid welding.
Described blade 2 is to be made of tungsten carbide material.
The hole wall of described jack 32 is provided with at least one from radially extending and fill out the groove 33 of filling for scolder, the cross section semicircular in shape of this groove 33, and prolong jack 32 length directions and extend.
Described groove 33 has an enclosed slot bottom surface away from this jack 32, is provided with at least one and uses the through hole of inserting for scolder 34 running through handle of a knife and pass to described groove 33 places.
The cross sectional shape of described jack 32 can be a polygon.
Be provided with at least one and use the through hole of inserting for scolder 34 running through handle of a knife and pass to described jack 32 places.
The hole wall of described jack 32 is provided with at least one from radially extending and filling out the groove 33 of filling for scolder, and this groove 33 directly radially runs through from jack 32 hole walls, and is open shape.
Described jack 32 terminal radial outward places be provided with one run through so that scolder is filled out the pore 35 of exhaust when irritating.
Its axis direction of 22 upper edges, joint portion of described blade is provided with the mill flat horizontal surface 23 of two radial symmetric at least.
The invention has the advantages that: provide a kind of the utilization to reclaim the circuit board milling cutter of discarded milling cutter as the regeneration of blade raw material, and enlarged the area of solid welding between blade and handle of a knife by means of the design of mill flat horizontal surface etc. on the joint portion of handle of a knife jack, groove or blade, make welding firm, not only reduce cost, and prolonged the service life of milling cutter.
Description of drawings
Fig. 1 is a known milling cutter schematic diagram;
Fig. 2 is another known milling cutter schematic diagram;
Fig. 3 is the stereogram of scheme one of the circuit board milling cutter of regeneration of the present invention;
Fig. 4 is the side view of scheme one of the circuit board milling cutter of regeneration of the present invention;
Fig. 5 is the cross-sectional view that the V-V direction of Fig. 4 is amplified;
Fig. 6 is the cross-sectional view of the circuit board milling cutter scheme two of regeneration of the present invention;
Fig. 7 is the stereogram of the circuit board milling cutter scheme three of regeneration of the present invention;
Fig. 8 is the side view of the circuit board milling cutter scheme three of regeneration of the present invention;
Fig. 9 is the cross-sectional view that the IX-IX direction of Fig. 8 is amplified;
Figure 10 is the cutaway view of the circuit board milling cutter manufacture craft of regeneration of the present invention;
Figure 11 is the cutaway view of the circuit board milling cutter manufacture craft of regeneration of the present invention;
Figure 12 is the broken section structural representation of the circuit board milling cutter embodiment 4 of the utility model regeneration;
Figure 13 is provided with the edge structure schematic diagram of two mill flat horizontal surfaces for radial symmetric on its joint portion among Figure 12.
The specific embodiment
Be the circuit board milling cutter manufacture craft of the improved regeneration of the present invention below, its concrete steps are as follows:
(1) utilize the milling cutter of the materials such as tungsten carbide that reclaim to make blade 2 by attrition process, described blade 2 comprises a blade joint portion 22, makes handle of a knife 3 with stainless steel, and described handle of a knife has a cone head 311.
(2) process the jack 32 that is slightly larger than blade joint portion 22 at an end center of handle of a knife 3;
Described jack 32 be processed with following three kinds of schemes:
Scheme one: process jack 32 at an end center of handle of a knife 3 greater than blade joint portion 22; The hole wall of described jack 32 is provided with six scolders that supply that radially extend certainly and be in communication with the outside and fills out the groove 33 of filling, shapes such as the cross section semicircular in shape of this groove 33, this groove 33 extends along jack 32 length directions, and tool also has an enclosed slot bottom surface away from this jack 32, is provided with at least one and uses the through hole of inserting for scolder 34 running through handle of a knife 3 and pass to described groove 33 places; And be provided with at described jack 32 terminal radial outward places one run through so that scolder is filled out the pore 35 of exhaust when irritating.
Scheme two: processing cross sectional shape at an end of handle of a knife 3 is an orthohexagonal jack 32, and its size can make that blade is corresponding to insert and leave the slit, is provided with one and uses the through hole of inserting for scolder 34 running through handle of a knife 3 and pass to described jack 32 places; And be provided with at described jack 32 terminal radial outward places one run through so that scolder is filled out the pore 35 of exhaust when irritating.
Scheme three: at an end center of handle of a knife 3 towards process than blade joint portion 22 bigger circular socket holes 32, the hole wall of jack 32 be provided with four from radially extend and be in communication with the outside fill out the groove 33 of filling for scolders, described groove 33 is to extend and radially run through from the hole wall of jack 32 along jack 32 length directions, and is open shape.
(3) in jack 32, insert brazing solder.
(4) joint portion 22 of blade 2 is implanted in the jack 32 of handle of a knife,, make both concentric with the anchor clamps location.
(5) heated in the handle of a knife 3 and 22 of the joint portions of blade 2, when heating, blade 2 and handle of a knife 3 are exerted pressure in opposite directions, make blade 2 be deep into the bottom of cone head 311.
(6) when the scolder inserted melts, according to three kinds of different schemes of above-mentioned steps (2), respectively to the filling mode of following different three kinds of auxiliary scolders should be arranged:
Scheme one: will assist scolder to insert groove 33, and after filling up, stop to heat by through hole 34.
Scheme two: will assist scolder to insert in the slit of blade 2 and jack 32, and after filling up, stop to heat by through hole 34.
Scheme three: will assist scolder directly to insert groove 33, and after filling up, stop to heat.(7) after the cooling handle of a knife 3 and blade 2 are withdrawed from location and the state of exerting pressure in opposite directions, described blade 2 is welded in the jack 32.
(8) with the milling cutter grinding of solid welding.
In an embodiment of the present invention, blade 2 is to utilize the old milling cutter of making as carbide alloy materials such as tungsten carbides, and reclaim the wearing and tearing back, attrition process is made.Its handle of a knife 3 is to make with general material such as stainless steel, tool steel, in scheme one, as Fig. 3, Fig. 4, shown in Figure 5, described handle of a knife comprises a jack 32 that is slightly larger than blade joint portion 21, many grooves 33 that radially are arranged with the hole wall that is formed at jack 32, run through handle of a knife 3 and the through hole 34 by inserting for scolder to pregroove 33 usefulness, an and pore 35 that runs through from the terminal radial outward of jack.
Described jack 32 slightly larger in diameter are in the diameter at the position that combines with handle of a knife 3 of blade 2.And on the hole wall of jack 32, be evenly distributed six grooves 33 that extend along the jack length direction; Shapes such as the cross section semicircular in shape of described groove 33, its quantity is good with 2～8 of symmetric arrays, also can be around shape or other form arranged distribution.It should be noted that, the through hole 34 of present embodiment is being example corresponding to six of groove 33, when filling scolder, can pour into simultaneously from six through holes, but owing to have the gap between blade 2 and hole wall, therefore through hole 34 quantity are not exceeded with groove 33 quantity, can pour into fusion welding in one or several through holes 34 therein, make it flow voluntarily and fill up all grooves 33.Shown in Figure 10,11, described jack 32 can also be made shapes such as ladder straight hole or ladder taper hole, in order to insert more scolders.
The main difference of the solution of the present invention one and scheme two is the form of jack 32.As shown in Figure 6, its cross section is regular hexagon, and size can cooperate for the joint portion of blade to be inserted, and 2 of the hole wall of jack 32 and blades form six slits 36 naturally, with the groove in the replacement scheme one 33.The quantity of through hole 34 can be six to eight equally.Fill out filling to slit 36 for scolder, the cross sectional shape of jack 32 is good with positive four～octagon.
The main difference of the solution of the present invention three and scheme one is the groove 33 on the handle of a knife.As Fig. 7, Fig. 8, shown in Figure 9, the quantity of groove 33 is example with four, is equally to extend along jack 32 length directions, but directly radially runs through from the hole wall of jack 32, is open form, and scolder can directly be inserted from groove 33.So there is no through hole 34 and pore 35 in the present embodiment on the handle of a knife 3.
In addition, the present invention also provides another process technology scheme: shown in Figure 12,13, any hole slot radially no longer is set in handle of a knife jack 32, and the mill flat horizontal surface 23 of two radial symmetric just is set at least at its axis direction of 22 upper edges, joint portion of described blade.
The mill flat horizontal surface 23 of 2～8 radial symmetric also can be set at its axis direction of 22 upper edges, joint portion of described blade as required.
The product that the manufacture craft of this improved regeneration circuit board milling cutter is produced, because can add than original more scolder, thus the intensity height of its bound fraction, thus make welding stable, not only reduce cost, and prolonged the service life of milling cutter.
In sum, regeneration circuit board milling cutter manufacture craft of the present invention, the source of milling cutter as the tungsten carbide material of blade scrapped in utilization, to reduce cost, and utilize 32 designs of bigger jack to make blade 2 be easy to insert, need not too emphasize the matching relationship of jack 32 and 2 sizes of blade, reduced technological requirement, the most important thing is, design by means of mill flat horizontal surface 23 etc. on the joint portion 22 of handle of a knife jack 32, groove 33 or blade, 3 bonding areas of blade 2 and handle of a knife are increased and mean forced, more can improve stability and life-saving that milling cutter uses.Therefore can reach purpose of the present invention really.
Claims (10)
1. the circuit board milling cutter manufacture craft of improved regeneration, it is characterized in that: it comprises the following steps:
(1) makes blade (2) with carbide alloy, make handle of a knife (3) with the ordinary steel material;
(2) process jack at an end center of handle of a knife (2) greater than blade joint portion (22);
(3) in jack (32) or jack, establish in the slit of groove (33) and blade (2) and jack (32) and insert brazing solder;
(4) blade (2) is implanted in the jack (32) of handle of a knife,, made both concentric with the anchor clamps location;
(5) handle of a knife (3) and the binding site of blade (2) are heated, when heating, exert pressure in opposite directions, make blade (2) be deep into the bottom of handle of a knife jack (32) to blade (2) and handle of a knife (3);
(6) when the scolder of inserting melts, will assist scolder to insert in the slit of groove (33) or blade (2) and jack (32) again, after filling up, stop to heat;
(7) after the cooling handle of a knife (3) and blade (2) are withdrawed from location and the state of exerting pressure in opposite directions, described blade (2) is welded in the jack (32);
(8) milling cutter to solid welding carries out grinding.
2. the circuit board milling cutter manufacture craft of improved regeneration according to claim 1, it is characterized in that: described blade (2) is to be made of tungsten carbide material.
3. the circuit board milling cutter manufacture craft of improved regeneration according to claim 1, it is characterized in that: the hole wall of described jack (32) is provided with at least one from radially extending and filling out the groove (33) of filling for scolder, the cross section semicircular in shape of this groove (33), and prolong jack (32) length direction and extend.
4. the circuit board milling cutter manufacture craft of improved regeneration according to claim 1, it is characterized in that: described groove (33) has an enclosed slot bottom surface away from this jack (32), locates to be provided with at least one and uses the through hole of inserting for scolder (34) running through handle of a knife (3) and pass to described groove (33).
5. according to the circuit board milling cutter manufacture craft of claim 3 or 4 described improved regenerations, it is characterized in that: the cross sectional shape of described jack (32) can be a polygon.
6. according to the circuit board milling cutter manufacture craft of claim 3 or 4 described improved regenerations, it is characterized in that: locate to be provided with at least one and use the through hole of inserting for scolder (34) running through handle of a knife and pass to described jack (32).
7. the circuit board milling cutter manufacture craft of improved regeneration according to claim 1, it is characterized in that: the hole wall of described jack (32) is provided with at least one from radially extending and filling out the groove (33) of filling for scolder, this groove (33) is radially to run through along the extension of jack (32) length direction and from its hole wall, and is open shape.
8. according to the circuit board milling cutter manufacture craft of claim 3 or 5 described improved regenerations, it is characterized in that: the terminal radial outward of described jack (32) place be provided with one run through so that scolder is filled out the pore (35) of exhaust when irritating.
9. the circuit board milling cutter manufacture craft of improved regeneration according to claim 1, it is characterized in that: its axis direction of upper edge, the joint portion of described blade (22) is provided with the mill flat horizontal surface (23) of two radial symmetric at least.
10. according to the circuit board milling cutter manufacture craft of claim 1 or 9 described improved regenerations, it is characterized in that: its axis direction of upper edge, the joint portion of described blade (22) is provided with the mill flat horizontal surface (23) of 2～8 radial symmetric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410059996 CN1562543A (en) | 2004-04-08 | 2004-06-28 | Technique for manufacturing modified reproduced milling cutter for circuit board |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410017572.7 | 2004-04-08 | ||
| CN200410017572 | 2004-04-08 | ||
| CN 200410059996 CN1562543A (en) | 2004-04-08 | 2004-06-28 | Technique for manufacturing modified reproduced milling cutter for circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1562543A true CN1562543A (en) | 2005-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410059996 Pending CN1562543A (en) | 2004-04-08 | 2004-06-28 | Technique for manufacturing modified reproduced milling cutter for circuit board |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101815406A (en) * | 2010-04-08 | 2010-08-25 | 梅州五洲电路板有限公司 | Process for cutting printed circuit board |
| CN101062539B (en) * | 2006-04-28 | 2010-12-01 | 上海尖点精密工具有限公司 | Method for manufacturing regenerative cutting tools and its structure |
| KR101818230B1 (en) | 2016-07-14 | 2018-01-15 | 한국오에스지 주식회사 | Indexable Endmil |
| CN110142581A (en) * | 2019-05-08 | 2019-08-20 | 安徽环友科技有限公司 | A kind of production technology of anti-oxidant PCB milling cutter |
| CN110280820A (en) * | 2019-05-08 | 2019-09-27 | 安徽环友科技有限公司 | A kind of novel seamless welds PCB milling cutter with one heart |
| CN114304862A (en) * | 2021-12-06 | 2022-04-12 | 上海惠而顺精密工具股份有限公司 | Grinding cutter, manufacturing method of cutter and using method of cutter |
-
2004
- 2004-06-28 CN CN 200410059996 patent/CN1562543A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101062539B (en) * | 2006-04-28 | 2010-12-01 | 上海尖点精密工具有限公司 | Method for manufacturing regenerative cutting tools and its structure |
| CN101815406A (en) * | 2010-04-08 | 2010-08-25 | 梅州五洲电路板有限公司 | Process for cutting printed circuit board |
| KR101818230B1 (en) | 2016-07-14 | 2018-01-15 | 한국오에스지 주식회사 | Indexable Endmil |
| CN110142581A (en) * | 2019-05-08 | 2019-08-20 | 安徽环友科技有限公司 | A kind of production technology of anti-oxidant PCB milling cutter |
| CN110280820A (en) * | 2019-05-08 | 2019-09-27 | 安徽环友科技有限公司 | A kind of novel seamless welds PCB milling cutter with one heart |
| CN114304862A (en) * | 2021-12-06 | 2022-04-12 | 上海惠而顺精密工具股份有限公司 | Grinding cutter, manufacturing method of cutter and using method of cutter |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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