CN103537762B - Manufacturing method of hard alloy tooth circular saw blade - Google Patents
Manufacturing method of hard alloy tooth circular saw blade Download PDFInfo
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- CN103537762B CN103537762B CN201310555637.2A CN201310555637A CN103537762B CN 103537762 B CN103537762 B CN 103537762B CN 201310555637 A CN201310555637 A CN 201310555637A CN 103537762 B CN103537762 B CN 103537762B
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- cutter block
- blade body
- saw blade
- circular saw
- toothholder
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Abstract
A manufacturing method of a hard alloy tooth circular saw blade belongs to the technical field of metal processing tools. According to the technical scheme, the manufacturing method comprises the following steps of: (1) machining a saw blade main body; (2) machining a cutter block, including, a, machining the cutter block to have a cubic shape, b, machining a through fastening screw hole along a connecting line of centers of upper and lower surfaces of the cutter block, and c, machining the four mutually parallel prisms, which are vertical to the fastening screw hole, of the cutter block into cutting edges; (3) assembling the cutter block. As a mechanical clip way is adopted to mount the cutter block on a tooth base of the saw blade main body, influence to the property of the saw blade main body in a cutter block welding process is not only avoided, but convenience is brought to coating treatment on the cutter block, accordingly the intensity and hardness of the saw blade are improved, and the service life of the saw blade main body is prolonged. In addition, the cutter block is provided with four available cutting edges in a machining manner and the cutter block can be used continuously only by being rotated after one cutting edge is abraded, so that the saw cutting cost of the saw blade is reduced greatly.
Description
Technical field
The present invention relates to a kind of manufacture method of cemented carbide tipped circular saw blade, the method effectively can improve saw blade lifetime, reduces the cutting cost of saw blade, belongs to metal working tools technical field.
Background technology
At present, the cemented carbide tipped circular saw blade overwhelming majority that iron and steel enterprise uses is welded type saw blade, and its processing technology is by the block welding of carbide alloy serrated knife in blade body, and then sharpening goes out corresponding flute profile angle as required.This blades machining method has the following disadvantages:
One, cutter block welding process has annealing effect to blade body, can reduce intensity and the hardness of blade body, thus decrease blade body reuse number of times.
Two, cannot carry out the coating process of sawtooth for the saw blade that diameter is larger, because the wearability of carbide alloy self is poor, therefore the saw cutting life of saw blade is shorter, cutting cost is higher.
Three, the cutter block of saw blade damage after not easy-maintaining, minority cutter block damages and whole saw blade will be caused to scrap, and improves the use cost of saw blade.
Summary of the invention
The object of the invention is to the drawback for prior art, a kind of processing method of cemented carbide tipped circular saw blade of improvement is provided, to improve saw blade lifetime, reduce the use cost of saw blade.
Problem of the present invention realizes with following technical proposals:
A processing method for cemented carbide tipped circular saw blade, the method comprises the following steps:
1. blade body is processed;
2. cutter block is processed:
A. cutter block is processed into rectangular shape;
B. the line along cutter block upper and lower surface mid point processes through fastening screw nail;
C. four of cutter block to be parallel to each other and the rib vertical with fastening screw nail is processed into cutting edge;
3. cutter block assembling
Adopt special spanner and accuracy detection, adjustment instrument, with sunk screw, cutter block is assembled on the toothholder of blade body.
The processing method of above-mentioned cemented carbide tipped circular saw blade, the procedure of processing of described blade body is as follows:
A. the blanking of blade body
The method of laser cutting is adopted to cut out the centre bore of blade body, the driving hole distributed along the even circumferential coaxial with centre bore and along the equally distributed toothholder of blade body outer rim;
B. blade body is quenched, temper;
C. the flatness of the mode of manual synchronizing to blade body is used tentatively to adjust;
D. finish turning or fine grinding are carried out to the centre bore of blade body, make it the dimensional requirement meeting drawing;
E. roll flute seat
The toothholder of alloy blade body carries out grinding, reaches physical dimension and the precision of following process requirement;
F. carry out half fine grinding according to allowance to blade body, size Control is 0-0.05mm thicker in the upper difference of finished product thickness;
G. according to before fine grinding, the flatness of requirement to blade body of saw blade flatness is corrected;
H. blade body is refined, be ground to finished size;
I. blade body is finally smoothed;
J. the processing of toothholder
The cutter block locating surface each toothholder of blade body processing the cutter block installed surface fitted with the lower surface of cutter block and fits with the rear end face of cutter block, the screwed hole that processing is corresponding with the fastening screw nail on cutter block on cutter block installed surface;
The processing method of above-mentioned cemented carbide tipped circular saw blade, in order to improve the wearability of cutter block, should in the surface of cutter block coating CVD or PVD coating.
The processing method of above-mentioned cemented carbide tipped circular saw blade, in the process of toothholder, also should process the positioning boss of wedge shape on the cutter block installed surface of each toothholder, the outside of described positioning boss is concordant with blade body side, and inner side leans against on cutter block.
The processing method of above-mentioned cemented carbide tipped circular saw blade, for any two adjacent toothholders of blade body, their positioning boss is corresponding with the not ipsilateral of blade body respectively.
The processing method of above-mentioned cemented carbide tipped circular saw blade, the material of described blade body selects 75Cr1 or 8CrV.
The processing method of above-mentioned cemented carbide tipped circular saw blade, cutter block upper and lower surface processes the chip-breaker corresponding with each cutting edge.
The processing method of above-mentioned cemented carbide tipped circular saw blade, the cutting edge form of four cutting edges of described cutter block has negative chamfered edge, without negative chamfered edge, has cutting edge inclination or without cutting edge inclination, also can be any combination of these four kinds of forms.
The present invention adopts set-card type to be arranged on the toothholder of blade body by cutter block, not only avoid cutter block welding process to the impact of blade body performance, and be convenient to feeler block and carry out coating process, thus improve intensity and the hardness of saw blade, extend the service life of blade body.In addition, cutter block is processed four available cutting edges by the present invention, only needs rotating knife block can continue to use, greatly reduce the cutting cost of saw blade after cutting edge wearing and tearing.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is the structural representation of the cemented carbide tipped circular saw blade by this method processing;
Fig. 2 is the front view of cuboid cutter block;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the top view of Fig. 2;
Fig. 5 is the structural representation of toothholder;
Fig. 6 is A direction view;
Fig. 7 is B direction view;
Fig. 8 is A ' direction view;
Fig. 9 is B ' direction view;
Figure 10 is the scheme of installation of cuboid cutter block;
Figure 11 is C direction view;
Figure 12 is D direction view;
Figure 13 is C ' direction view;
Figure 14 is D ' direction view.
In figure, each list of reference numerals is: 1, the first cutting edge; 2, the second cutting edge; 3, the 3rd cutting edge; 4, the 4th cutting edge; 5, fastening screw nail; 6, non-cutting chamfered edge; 7, chip-breaker; 8, centre bore; 9, driving hole; 10, blade body; 11, cutter block; 12, fabrication hole; 13, screw; 14, positioning boss; 15, screwed hole; M, cutter block installed surface; N, cutter block locating surface.
Detailed description of the invention
The present invention includes from selection raw material to the whole production processes processing finished product.Particular content is as follows:
1, blade body raw material is selected and blanking
Blade body selects 75Cr1,8CrV etc., the method of laser cutting is adopted to cut out the relevant factor such as centre bore, driving hole, toothholder of blade body, wherein centre bore, transmission, toothholder etc. vertical with saw blade two sides (this is identical with conventional cast-cutting saw slice body).
2, blade body heat treatment
Blade body, after quenching, tempering, requires that blade body hardness is 40-44HRC, obtains best comprehensive mechanical property.
3. half essence is flat first for blade body
The mode of manual synchronizing is used blade body flatness to be smoothed the degree that can meet following process.
4. blade body centre bore finish turning or fine grinding
Blade body endoporus finish turning or fine grinding are met drawing requirement to final size.
5. roll flute seat
The toothholder of alloy blade body carries out grinding, reaches physical dimension and the precision of following process requirement.
6. blade body half fine grinding
Carry out half fine grinding according to allowance to blade body, size Control is 0-0.05mm thicker in the upper difference of finished product thickness.
7. blade body second time half essence is flat
According to the requirement plain film to blade body flatness before fine grinding.
8. blade body fine grinding
Blade body is ground to finished size.
9. blade body essence is flat
Blade body is finally smoothed.
10. the processing of toothholder
The cutter block locating surface N cutter block installed surface M of blade body toothholder processing positioning boss 14 and corresponds, wherein the medial surface of positioning boss 14 and cutter block installed surface M and cutter block locating surface N are mutually 90 degree, positioning boss 14 and cutter block locating surface N adopt milling tool processing, will process escape in advance before processing in blade body.The gradient of the medial surface of positioning boss 14, the locating shim also by the band gradient of accurately processing is formed.During locating and machining pad, go out to be formed thickness and the gradient of flute profile angle by locating shim with special grinding machine, its physical dimension is identical with cutter block bottom surface location dimension.
11. cutter block processing
Cutter block is arranged on special blade body processing mold, processes four flute profile such as cutting edge and chip-breaker key elements of cutter block respectively.Wherein the cutting edge form of sawtooth rake face can by having the negative chamfered edge of negative chamfered edge, nothing, having cutting edge inclination, being combined without modes such as cutting edge inclinations.
12. cutter block assemblings
Adopt special spanner and accuracy detection, adjustment instrument, with countersunk head screw, cutter block is assembled in blade body, meets the precision of drawing requirement.
13. pairs of saw blades carry out all technical indicators and detect, qualified rear packaging warehouse-in.
The invention provides a kind of processing mode of indexable mechanically-clampedcircular circular saw blade with hard alloy teeth, by processing the method for inclined-plane or locating shim on blade body toothholder, achieving the generation of the tangential clearance angle of sawtooth and radial clearance angle two key elements; By adopting special blade body mould, achieve the processing of cutter block four cutting edges and corresponding chip-breaker; By special spanner and accuracy detection, adjustment instrument, achieve the assembling of cutter block and blade body.
Claims (7)
1. a processing method for cemented carbide tipped circular saw blade, is characterized in that, the method comprises the following steps:
1. process blade body, step is as follows:
A. the blanking of blade body
The method of laser cutting is adopted to cut out the centre bore of blade body, the driving hole distributed along the even circumferential coaxial with centre bore and along the equally distributed toothholder of blade body outer rim;
B. blade body is quenched, temper;
C. the flatness of the mode of manual synchronizing to blade body is used tentatively to adjust;
D. finish turning or fine grinding are carried out to the centre bore of blade body, make it the dimensional requirement meeting drawing;
E. roll flute seat
The toothholder of alloy blade body carries out grinding, reaches physical dimension and the precision of following process requirement;
F. carry out half fine grinding according to allowance to blade body, size Control is 0-0.05mm thicker in the upper difference of finished product thickness;
G. according to before fine grinding, the flatness of requirement to blade body of saw blade flatness is corrected;
H. blade body is refined, be ground to finished size;
I. blade body is finally smoothed;
J. the processing of toothholder
The cutter block locating surface each toothholder of blade body processing the cutter block installed surface fitted with the lower surface of cutter block and fits with the rear end face of cutter block, the screwed hole that processing is corresponding with the fastening screw nail on cutter block on cutter block installed surface;
2. cutter block is processed:
A. cutter block is processed into rectangular shape;
B. the line along cutter block upper and lower surface mid point processes through fastening screw nail;
C. four of cutter block to be parallel to each other and the rib vertical with fastening screw nail is processed into cutting edge;
3. cutter block assembling:
Adopt special spanner and accuracy detection, adjustment instrument, with sunk screw, cutter block is assembled on the toothholder of blade body.
2. the processing method of a kind of cemented carbide tipped circular saw blade according to claim 1, is characterized in that, in the surface of cutter block coating CVD or PVD coating.
3. the processing method of a kind of cemented carbide tipped circular saw blade according to claim 1 and 2, it is characterized in that, also should process the positioning boss of wedge shape on the cutter block installed surface of each toothholder in the process of toothholder, the outside of described positioning boss is concordant with blade body side, and inner side leans against on cutter block.
4. the processing method of a kind of cemented carbide tipped circular saw blade according to claim 3, is characterized in that, for any two adjacent toothholders of blade body, their positioning boss is corresponding with the not ipsilateral of blade body respectively.
5. the processing method of a kind of cemented carbide tipped circular saw blade according to claim 4, is characterized in that, the material of described blade body selects 75Cr1 or 8CrV.
6. the processing method of a kind of cemented carbide tipped circular saw blade according to claim 5, is characterized in that, cutter block upper and lower surface processes the chip-breaker corresponding with each cutting edge.
7. the processing method of a kind of cemented carbide tipped circular saw blade according to claim 6, it is characterized in that, the cutting edge form of four cutting edges of described cutter block has negative chamfered edge, without negative chamfered edge, has cutting edge inclination or without cutting edge inclination, also can be any combination of these four kinds of forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310555637.2A CN103537762B (en) | 2013-11-11 | 2013-11-11 | Manufacturing method of hard alloy tooth circular saw blade |
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| CN201310555637.2A CN103537762B (en) | 2013-11-11 | 2013-11-11 | Manufacturing method of hard alloy tooth circular saw blade |
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| CN103537762A CN103537762A (en) | 2014-01-29 |
| CN103537762B true CN103537762B (en) | 2015-07-08 |
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|---|---|---|---|---|
| CN103962643A (en) * | 2014-04-04 | 2014-08-06 | 浙江虎鼎机械制造有限公司 | Blade structure of metal cutting circular sawing machine and machining technology |
| CN104480255B (en) * | 2014-12-22 | 2017-04-05 | 中山市奥美森工业有限公司 | A kind of manufacture craft of disintegrating machine moving knife |
| WO2017113040A1 (en) * | 2015-12-31 | 2017-07-06 | 唐山冶金锯片有限公司 | Circular saw blade for cold- and hot-sawing metal, and manufacturing process therefor |
| CN105750653A (en) * | 2016-02-24 | 2016-07-13 | 河北吉美达工具股份有限公司 | Machining method for hard alloy saw web |
| CN106180894B (en) * | 2016-08-25 | 2018-09-14 | 唐山冶金锯片有限公司 | A kind of double-sided blade sawtooth cutter block, machine card type saw blade and double-sided blade sawtooth cutter block interchanging method |
| CN108161122B (en) * | 2018-02-02 | 2024-07-30 | 泉州市洛江区双阳金刚石工具有限公司 | Manufacturing process of metal ceramic cold saw circular saw blade |
| CN108555392A (en) * | 2018-06-11 | 2018-09-21 | 杭州和源精密工具有限公司 | The preparation method of oversize cold saw |
| CN109202178B (en) * | 2018-10-17 | 2021-03-30 | 浙江至广精密工具有限公司 | Saw blade machining process |
| CN113333859A (en) * | 2021-07-07 | 2021-09-03 | 唐山冶金锯片有限公司 | Mechanical clamping type hard alloy tooth circular saw blade |
| CN113385739A (en) * | 2021-07-13 | 2021-09-14 | 杭州和源精密工具有限公司 | Detachable cutting metal saw blade |
| CN113681726B (en) * | 2021-08-24 | 2022-09-09 | 北新集团建材股份有限公司 | Gypsum board high-speed saw cutting system and tool bit thereof |
| CN116021091A (en) * | 2023-03-03 | 2023-04-28 | 丹阳华昌特思科工具制造有限公司 | Machining method of hard alloy tooth circular saw blade |
| CN117798424A (en) * | 2023-12-28 | 2024-04-02 | 江门市创盈新金属制品有限公司 | Metal cutting process |
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