CN1382532A - Method for recovering cutters used to machine PCB and rod made of it - Google Patents
Method for recovering cutters used to machine PCB and rod made of it Download PDFInfo
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- CN1382532A CN1382532A CN 01115345 CN01115345A CN1382532A CN 1382532 A CN1382532 A CN 1382532A CN 01115345 CN01115345 CN 01115345 CN 01115345 A CN01115345 A CN 01115345A CN 1382532 A CN1382532 A CN 1382532A
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- cutter
- circuit board
- printed circuit
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Abstract
A method for recovering the cutter used to machine PCB features that after the worn off cutting edge is removed, its rod part is added with a rod to meet its length requirement and a new cutting edge is machined.
Description
The cutter material rod that the present invention relates to a kind of recovery method of cutter and make is applied to the cutter of printed circuit board (PCB) processing, particularly a kind of can the reclaiming of abrasion cutter method and the material bar of making.
Printed circuit board (PCB) can be described as in the electronic installation indispensable element, and along with the flourishing day by day of various electronic installations and popularize, the demand of printed circuit board (PCB) is also increasing, and the consumption of the relative cutter that is used for printed circuit board (PCB) also significantly improves thereupon.The cutter that is used for printed circuit board (PCB) processing, common have two kinds on drill bit and a milling cutter, be used for to printed circuit board drilling or moulding cutting, because the requirement of precision, so it is all quite fast to add the man-hour rotating speed, greatly about per minute 3,40,000 forward to 120,000 change between, so wear away quite soon, with the drill bit is example, approximately processes about 10,000 holes, just need scrap.
The cutter of this class includes blade 11 and shank 12 (seeing Figure 1A), its material is a main material with the ultra micron tungsten carbide that contains cobalt mostly, so intensity and toughness just can be taken into account, because tungsten carbide is not cheap, add that demand is big, abrasion quite fast again, so the reclaiming of abrasion cutter is a ring that can not be ignored.But because the method feasibility of existing reclaiming is not high, and do not popularize, directly abandon so most manufacturer all is the cutter that will wear away, or give the waste recovery merchant and make other sub-quality products again, cause sizable wasting of resources.
The way of recycling that some are feasible is expected by the manufacturer of small part, be that the blade 11 that will wear away cutter 10 fractures earlier, shown in Figure 1B, shank 12 levelings be will remain again and rod footpath and all less pole 121 of length ground to form, pack in the draw-in groove 21 of a stainless sleeve 20 (adopt welding or closely the mode of engaging), see also Fig. 1 C, for being reprocessed into a cutter.
But the way of recycling of this kind remains in many shortcomings:
1. the tool dimension that the little external diameter tungsten carbide pole after reclaiming can be made into has certain restriction, just can not surpass the diameter (excessive as pole rod footpath, as then can to make sleeve that the possibility that cracks is arranged) of pole.
2. because it is tungsten carbide that the part in the tiny rod of cutter front end footpath is only arranged, clip position is all stainless steel in the use, so insufficient strength so way of recycling only can be applied to drill bit (being subjected to force direction is axial force), and can not be used for milling cutter (being subjected to force direction is radial load).
3. bond strength not enough (ditto described), so in use, the part of drill bit (tungsten carbide) has the possibility that comes off.
4. because of adopting little pole to be fixed in the sleeve pipe,,, the part that exposes is processed into as vertical as the normal drill bit although can processing so probably have crooked phenomenon (seeing Fig. 1 D), but be incorporated into the part of sleeve pipe, remain crooked, the one side that makes is stressed bigger, and the overall efficiency that makes lowers.
Be recovery method that addresses the above problem the cutter that the invention provides a kind of processing printed circuit board and the material bar of making thereof,, significantly reduce manufacturing cost will be used for the cutter reclaiming of printed circuit board (PCB) processing.
The recovery method of the cutter of disclosed processing printed circuit board according to the present invention is after the blade of an abrasion cutter is removed, to form a base material; Supply the bar length overall in this base material one end, form a cutter material rod.The cutter material rod of being made by described recovery method includes:
One base material, two ends have one respectively and add the Ministry of worker and the less fixed part of a size, and this adds the Ministry of worker can be with for the blade that is processed into a cutter; And
One sleeve pipe combines with this fixed part by a joint portion of an end, adds the Ministry of worker and be fixed in this.
This material bar Yin Jia Ministry of worker keeps the outside dimension of former bar, so the full-size of regeneration cutter can reach former bar size, and there is not restriction on the size, and joint portion and blade still have one section space can supply clamping, so retaining part includes the tungsten carbide of part, make grip strength enough not have the restriction in the application, also do not have the phenomenon that comes off.
For making purpose of the present invention, structural feature and function thereof are had further understanding, conjunction with figs. is described in detail as follows now:
Figure 1A～1D is the schematic diagram that known tool reclaims;
Fig. 2 is the flow chart of recovery method of the present invention;
Fig. 3 A～3B is the schematic diagram of material bar of the present invention;
Fig. 4 A～4E is the schematic diagram of fixed part of the present invention and joint portion;
Fig. 5 A～5B is second embodiment of material bar of the present invention; And
Fig. 6 is the 3rd embodiment of material bar of the present invention.
The recovery method of the cutter of disclosed processing printed circuit board according to the present invention, as shown in Figure 2, at first the blade 11 with a cutter 10 that wears away is blocked (step 601), see also Figure 1A, form a base material 30, and supply bar length overall (step 602) (for example according to IPC-DR-570A, 1994 standard advises, tool length must
Inch), forming a cutter material rod, can form new blade (step 603) in front end then, is the drill bit or the blade of milling cutter for example.
Supply the mode of length overall and can utilize a cushion block 50, the mode of welding with the plane is connected to base material 30 1 ends, and the other end keeps life size, for being processed to form blade (Fig. 3 A); Or form a fixed part 301 in base material 30 1 ends, see also Fig. 3 B, and the size of fixed part 301 is less than the size in the handle footpath of former cutter 10, and front end (other end of fixed part 301 just) keeps life size equally, for being processed to form blade, and in fixed part 301 in conjunction with a sleeve pipe 40, sleeve pipe 40 utilizes a joint portion 401 to be incorporated on the fixed part 301, can adopt welding or closely mode combination such as engaging.
The material of its middle sleeve 40 and cushion block 50 can be different from the metal material of the material of former cutter 10, for example can be more cheap materials such as stainless steel, (can certainly use tungsten carbide with the cost that reduces material, but cost is higher), owing to keep life size for the place (base material 30 front ends just) that is processed to form blade, so can not have the restriction of size for the blade that is processed into the various sizes cutter; The part of tungsten carbide (material of base material 30 just) reservation is quite long in addition, the place that supplies clamping is that the part of tungsten carbide (or includes tungsten carbide and sleeve pipe 40 partly, be detailed later), significantly improve the intensity of clamping, so, can be applicable to various cutters, comprise drill bit, milling cutter etc.
The present invention is used for the cutter material rod of printed circuit board (PCB) processing, as shown in Figure 3A, includes a base material 30 and a cushion block 50; Cushion block 50 adopts the mode and the base material 30 of plane welding to join, and base material 30 other ends are for adding the Ministry of worker 302.Or include a base material 30 and a sleeve pipe 40 (seeing Fig. 3 B); Base material 30 1 ends have the Ministry of worker of adding 302, and the other end has a fixed part 301, and sleeve pipe 40 has a joint portion 401, can be incorporated into the fixed part 301 of base material 30 and sleeve pipe 40 is fixed on the base material 30.
The material of base material 30 present existing the bests is the ultra micron tungsten carbide that contains cobalt, can utilize the cutter of abrasion to be reclaimed and shape (certainly, the same virgin material that also can use shapes), and the material of sleeve pipe 40 and cushion block 50 can be different from base material 30, can utilize the cheaper metal material of expense, be stainless steel etc. for example, to reduce the cost of material.
The size of the fixed part 301 of base material 30 is less, in order to be incorporated into joint portion 401, and the cross section of fixed part 301 can be circle (seeing Fig. 4 A) or square (seeing Fig. 4 B) or other geometry etc., or can have different shape (not shown) such as a tapering (seeing Fig. 4 C) or coniform, square awl, conveniently to be incorporated into joint portion 401, and the hole depth of joint portion 401 also can be greater than the length (seeing Fig. 4 D) of fixed part 301, or or even the hole (seeing Fig. 4 E) run through, equally can be in conjunction with fixed part 301.And the mode of its combination can adopt the welding or the mode of closely engaging etc.This fixed form is more much higher than the intensity of known manner, and unlike known manner, adopts the mode of little pole to insert, and may have crooked, eccentric or the phenomenon that comes off, and therefore, constant intensity also is significantly to improve.
Same, add the Ministry of worker's 302 usefulness for the blade that is processed into a cutter, be drill bit or milling cutter etc. for example, and keep the size in the handle footpath of former cutter, so there is not the restriction on the size, can be processed into the cutter of various sizes; And the length of base material 30 parts can determine (to that is to say according to the size that reclaims former cutter, the cutter that size is big more, blade is longer, the length that reclaims is just shorter), shown in Fig. 3 A, 3B, because of base material 30 quite long, so the position of clamping can be the part of tungsten carbide, so grip strength is quite high, just there is not the restriction of using yet; In addition, shown in Fig. 5 A, 5B, so base material 30 is short is that matching standard length is elongated the sleeve pipe 40 or the length of cushion block 50 constant to keep total length, so the position of clamping then is the tungsten carbide (just base material 30) of part, the sleeve pipe 40 or the cushion block 50 of part, in other words, just be clamped near the band that both fix, because the part of clamping still includes the tungsten carbide of considerable part, but so the cutter bearing radial force and the axial force of regeneration, restriction on equally also not having to use just can be applicable on drill bit and the milling cutter.Simultaneously, also can be trimmed in advance than spillikin part directly,, add 301 of the Ministry of worker 302 and fixed parts and be clamping part 303, for clamping with convenient processing blade with adding the Ministry of worker 302.
In addition, see also Fig. 6, the shortest as base material 30 is reduced to, can make recovery of former cutter can be applied to two (the same mode of utilizing cushion block 50 is also passable, not shown in the figures), just former cutter is cut into two, so, though can save many fee of materials, but because the part of clamping only is left the part of sleeve pipe 40, so only can be applied on the milling cutter of drill bit or reduced size, but the still more known way of recycling of the size range that can be made into is wide.
The present invention can will be used for the in addition reclaiming of cutter of printed circuit board (PCB) processing, and it has following advantage:
1. the cutter of reclaiming can be applicable to various sizes, the restriction on the no size.
2. can be applicable to various cutters, is drill bit or milling cutter etc. for example, the restriction of no range of application.
3. the intensity of combination and clamping is enough, does not have to crumble or the possibility that comes off in using.
The above is the present invention's preferred embodiment wherein, is not to be used for limiting practical range of the present invention; Be that all equalizations of being done according to claim scope of the present invention change and modification, be all claim scope of the present invention and contain.
Claims (16)
1. a recovery method that adds the cutter of printed circuit board (PCB) is used for an abrasion cutter reclaiming, and this method comprises the following step at least:
Block the blade of this abrasion cutter, form a base material; And
Supply length overall in this base material one end, form a cutter material rod.
2. the recovery method of the cutter of processing printed circuit board as claimed in claim 1 is wherein supplied length overall in this base material one end, form the step of a cutter material rod after, more include the step that forms a blade in the other end of this base material.
3. the recovery method of the cutter of processing printed circuit board as claimed in claim 1 is wherein supplied length overall in this base material one end, forms the step of a cutter material rod, is to utilize a cushion block to be connected to this base material one end in the mode of plane welding.
4. the recovery method of the cutter of processing printed circuit board as claimed in claim 1 is wherein supplied length overall in this base material one end, forms the step of a cutter material rod, is to include:
Form the less fixed part of a size in this base material one end; And
One sleeve pipe is placed in this fixed part, forms a cutter material rod.
5. the recovery method of the cutter of processing printed circuit board as claimed in claim 4, wherein this cover piping utilizes an endoporus to be placed in this fixed part.
6. the recovery method of the cutter of processing printed circuit board as claimed in claim 4, wherein this sleeve pipe utilizes welding manner to combine with this joint portion system.
7. the recovery method of the cutter of processing printed circuit board as claimed in claim 4, wherein this sleeve pipe utilizes the tight mode combination that engages with this joint portion system.
8. cutter material rod that is used for printed circuit board (PCB) processing of being made by the recovery method of claim 1 includes:
One base material, two ends have one respectively and add the Ministry of worker and the less fixed part of a size, and this adds the Ministry of worker can be with for the blade that is processed into a cutter; And
One sleeve pipe combines with this fixed part by a joint portion of an end, adds the Ministry of worker and be fixed in this.
9. the cutter material rod that is used for printed circuit board (PCB) processing as claimed in claim 8, wherein this base material more includes a clamping part, is positioned at this and adds between the Ministry of worker and this fixed part.
10. the cutter material rod that is used for printed circuit board (PCB) processing as claimed in claim 8, wherein this fixed part is one cylindric, the joint portion that cooperates this sleeve pipe is an endoporus, to interosculate.
11. the cutter material rod that is used for printed circuit board (PCB) processing as claimed in claim 10, wherein this fixed part also has a tapering.
12. the cutter material rod that is used for printed circuit board (PCB) processing as claimed in claim 10, wherein this joint portion is a circular hole that runs through.
13. the cutter material rod that is used for printed circuit board (PCB) processing as claimed in claim 8, wherein this fixed part is a flat column, and the joint portion that cooperates this sleeve pipe is a square hole, to interosculate.
14. the cutter material rod that is used for printed circuit board (PCB) processing as claimed in claim 8, wherein this joint portion is a square hole that runs through.
15. the cutter material rod that is used for printed circuit board (PCB) processing as claimed in claim 8, wherein this base material adds the Ministry of worker in order to form the blade of a drill bit.
16. the cutter material rod that is used for printed circuit board (PCB) processing as claimed in claim 8, wherein this base material adds the Ministry of worker in order to form the blade of a milling cutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01115345 CN1382532A (en) | 2001-04-20 | 2001-04-20 | Method for recovering cutters used to machine PCB and rod made of it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01115345 CN1382532A (en) | 2001-04-20 | 2001-04-20 | Method for recovering cutters used to machine PCB and rod made of it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1382532A true CN1382532A (en) | 2002-12-04 |
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ID=4661901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01115345 Pending CN1382532A (en) | 2001-04-20 | 2001-04-20 | Method for recovering cutters used to machine PCB and rod made of it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1382532A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889671A (en) * | 2015-05-22 | 2015-09-09 | 张家港市锐正精密工具有限公司 | Method for recycling used milling tool |
| CN112355583A (en) * | 2020-10-30 | 2021-02-12 | 陕西法士特汽车传动集团有限责任公司 | Method for recycling waste alloy cutter |
-
2001
- 2001-04-20 CN CN 01115345 patent/CN1382532A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889671A (en) * | 2015-05-22 | 2015-09-09 | 张家港市锐正精密工具有限公司 | Method for recycling used milling tool |
| CN112355583A (en) * | 2020-10-30 | 2021-02-12 | 陕西法士特汽车传动集团有限责任公司 | Method for recycling waste alloy cutter |
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