CN207757013U - A kind of cold saw saw blade that cutting edge is strengthened - Google Patents
A kind of cold saw saw blade that cutting edge is strengthened Download PDFInfo
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- CN207757013U CN207757013U CN201820122679.5U CN201820122679U CN207757013U CN 207757013 U CN207757013 U CN 207757013U CN 201820122679 U CN201820122679 U CN 201820122679U CN 207757013 U CN207757013 U CN 207757013U
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- saw
- chip
- chamfered edge
- flank
- negative chamfered
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- 239000002184 metal Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 201000009240 nasopharyngitis Diseases 0.000 description 1
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Abstract
The utility model discloses the cold saw saw blades that a kind of cutting edge is strengthened, it is located at the saw-tooth tool bit in circular metal saw blade saw body including circular metal saw blade saw body, ring, the flank that saw-tooth tool bit includes chip-breaker, is located at the main side of chip-breaker both sides, is located at saw-tooth tool bit top, the first chamfer for being located at the negative chamfered edge between chip-breaker and flank, being located at the chip dividing groove being connected to negative chamfered edge in flank, being located between main side and flank, for negative chamfered edge using being obliquely installed, the both ends of negative chamfered edge are equipped with side rake angle.Both the intensity and toughness of the flank edge of negative chamfered edge had been enhanced, negative chamfered edge is less susceptible to collapse damage after by material impact, improves cutter life；It can be made to come into contact with material by bearing the side main cutting edge on chamfered edge in sawing stress again, cutting force is made to play incremental process, reduce cutting vibration；Chip-flowing can also be changed, mitigate the negative effect of chip, reduce the friction of main cutting edge and chip, improve saw-tooth tool bit service life.
Description
Technical field
The utility model is related to cold saw saw blade fields, and in particular to a kind of cold saw saw blade that cutting edge is strengthened.
Background technology
During web for sawing metal, the heat that whens sawtooth sawing workpieces of cold sawing circular saw blade generates passes through sawtooth
It is transferred on sawdust, therefore the workpiece of sawing and saw blade can be made to keep cooling, currently, the saw on common cold saw saw blade
It is the consistent square planar configuration in left and right that serrated knife head, which bears chamfered edge, and saw-tooth tool bit is negative not to have chamfering between chamfered edge and two sides, and saws
Chip dividing groove on serrated knife head is generally arc-shaped structure, and the bottom edge that front bottom end and the saw-tooth tool bit of chip dividing groove bear chamfered edge has one
Fixed distance, and the interior angle angle between the side and flank of chip dividing groove is generally acute angle, such as patent
Shown in figure three in CN201410521180.8, existing cold saw is caused to be had the following defects with saw blade：1, saw-tooth tool bit is negative
It is be easy to cause by material impact when the flank edge sawing of chamfered edge and collapses the short disadvantage of damage, tool wear block, service life；2, it cuts
When cutting vibration it is big, main cutting edge service life is short；3, chip-flowing is fixed, and saw-tooth tool bit can not mitigate the negative work of chip
With the friction of the cutting edge and chip of bearing chamfered edge is big；4, apex chip dividing groove is arc-shaped groove, and the side of chip dividing groove and rear knife
Interior angle angle between face is generally acute angle, and the corner being easy to cause between chip dividing groove and flank occurs collapsing damage phenomenon.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide the cold saw circles that a kind of cutting edge is strengthened
Saw blade.
To solve above-mentioned existing technical problem, the utility model uses following scheme：
A kind of cold saw saw blade that cutting edge is strengthened, including circular metal saw blade saw body, ring are located at the circular metal saw
Several saw-tooth tool bits with blade saw, the saw-tooth tool bit include the chip-breaker for being located at its front end, are located at the chip-breaker two
The main side of side, the flank for being located at the saw-tooth tool bit top, be located between the chip-breaker and the flank it is negative fall
Rib is located at the chip dividing groove being connected to the negative chamfered edge in the flank, is located between the main side and the flank
First chamfer, for the negative chamfered edge using being obliquely installed, the both ends of the negative chamfered edge are equipped with side rake angle.
Further, the chip dividing groove is U-shaped structure, the bottom phase of the front end bottom surface of the chip dividing groove and the negative chamfered edge
It cuts.
Further, the internal angle beta between the side of the chip dividing groove and the flank is obtuse angle.
Further, the end face of the side rake angle at least has there are four vertex, forms wherein the four of the side rake angle
A vertex is located on the upper and lower ends corner side of the negative chamfered edge and the first chamfer.
Further, the negative chamfered edge and the axial slices angle α of the circular metal saw blade saw body are 2~35 °, described
Negative chamfered edge is in cutting first by being formed by main cutting edge and workpiece to be processed between the negative chamfered edge and the chip-breaker
Contact.
Compared with prior art, the beneficial effects of the utility model are：
The both ends of negative chamfered edge are respectively arranged a side rake angle, have both enhanced the intensity and toughness of the flank edge of negative chamfered edge,
What negative chamfered edge was less likely to cause after by material impact when sawing collapses damage, has delayed the abrasion of cutter, has improved cutter life；
Side rake angle can be made to come into contact with material rather than side rake angle by bearing the side main cutting edge on chamfered edge in sawing stress again
Entire surface contact, cutting force can be made to play incremental process, reduce cutting vibration；It can also be changed by side rake angle
Become chip-flowing, the change in terms of chip-flowing can mitigate the negative effect of chip, make it along side rake angle design direction
Stream bits, and then reduce the friction of main cutting edge and chip, improve saw-tooth tool bit service life.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model saw-tooth tool bit；
Fig. 3 is the structural schematic diagram of axial slices angle α on the utility model saw-tooth tool bit；
Fig. 4 is the structural schematic diagram of internal angle beta on the utility model saw-tooth tool bit.
In figure：Circular metal saw blade saw body 1, saw-tooth tool bit 2, chip-breaker 3, negative chamfered edge 4, internal angle beta 5, chip dividing groove 6, rear knife
Face 7, first chamfer 8, side rake angle 9, main side 10, axial slices angle α 11, main cutting edge 12, side cutting edge 13.
Specific implementation mode
In the following, in conjunction with attached drawing and specific implementation mode, the utility model is described further, it should be noted that
Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
As shown in Figure 1 to 4, the cold saw saw blade that a kind of cutting edge is strengthened, including circular metal saw blade saw body 1, ring are set
Several saw-tooth tool bits 2 in the circular metal saw blade saw body 1, the saw-tooth tool bit 2 include the chip breaking positioned at its front end
Slot 3, the main side 10 for being located at 3 both sides of the chip-breaker, the flank 7 for being located at 2 top of the saw-tooth tool bit, are located at the chip breaking
Negative chamfered edge 4 between slot 3 and the flank 7 is located at the chip dividing groove 6 being connected to the negative chamfered edge 4 in the flank 7, sets
First chamfer 8 between the main side 10 and the flank 7, the negative chamfered edge 4 are used and are obliquely installed, the negative chamfered edge
4 both ends are equipped with side rake angle 9；The chip dividing groove 6 is U-shaped structure, the front end bottom surface of the chip dividing groove 6 and the negative chamfered edge
4 bottom is tangent；Internal angle beta 5 between the side of the chip dividing groove 6 and the flank 7 is obtuse angle；The side rake angle 9
End face, which at least has, to be formed wherein four vertex of the side rake angle 9 there are four vertex and is located at the negative chamfered edge 4 and described
On the upper and lower ends corner side of first chamfer 8；The axial slices angle α of the negative chamfered edge 4 and the circular metal saw blade saw body 1
11 be 2~35 °, and the negative chamfered edge 4 is in cutting first by being formed by master between the negative chamfered edge 4 and the chip-breaker 3
Cutting edge 12 is contacted with workpiece to be processed.
In the actual production process, the both ends of the negative chamfered edge 4 on saw-tooth tool bit 2 are respectively arranged a side rake angle 9, the cross
It is generally chamfering structure to anterior angle 9, and is process by the way of material removal, production is more convenient, and production cost is more
It is low, meanwhile, one is formd after being processed to side rake angle 9 from the sweptback inclined surface in the front end of negative chamfered edge 4, in reality
During border processes, the intensity and toughness of the side cutting edge 13 of negative chamfered edge 4 had both been enhanced, when sawing, negative chamfered edge 4 was rushed by material
What is be less likely to cause after hitting collapses damage, has delayed the abrasion of cutter, has improved cutter life；It again can by side rake angle 9
Change chip-flowing, the change in terms of chip-flowing can mitigate the negative effect of chip, make it along 9 side of design of side rake angle
It is considered to be worth doing to stream, after chip is transitioned into first chamfer 8 by side rake angle 9, is effectively reduced rubbing for main cutting edge 12 and chip
It wipes, improves the service life of saw-tooth tool bit 2；Meanwhile negative chamfered edge 4 is used and is obliquely installed, and negative chamfered edge 4 and the circular metal
The axial slices angle α 11 of saw blade saw body 1 is 2~35 °, passes through negative chamfered edge 4 and chip-breaker 3 first when negative chamfered edge 4 is in cutting
Between be formed by main cutting edge 12 and contacted with workpiece to be processed, and 4 entire surface of non-negative chamfered edge contacts, and cutting force plays in proper order gradually
Into process, effectively reduce the vibration force of cutting, make the more efficient of cutting, bearing chamfered edge, 4 the service life is longer, laterally
Anterior angle 9 also comes into contact with the entire of material rather than side rake angle 9 in sawing stress by bearing the side cutting edge 13 on chamfered edge 4
Face contacts, and cutting force can be made to play incremental process, reduces cutting vibration；Section angle α is 2~35 ° general using 5
~10 ° or 15 ° or 25 °, the stock-removing efficiency higher in cutting, 12 intensity higher of main cutting edge.
Preferably, the axis projection face for being located at negative chamfered edge 4 on chip dividing groove 6 is U-shaped structure, and the bottom surface of chip dividing groove 6 with
The bottom main cutting edge 12 of the negative chamfered edge 4 is tangent, cutting when for collecting for chip, effective area more preferable with guide effect
Bigger, and internal angle beta 5 between the side of the chip dividing groove 6 and the flank 7 is designed using obtuse angle, effectively enhances point
Consider the transition corner intensity between 6 both sides of slot and flank 7 to be worth doing, effectively reduce 6 corner side of chip dividing groove collapses damage phenomenon.
Further, the end face of the side rake angle 9 at least has there are four vertex, and form the side rake angle 9 its
In four vertex be located on the upper and lower ends corner side of the negative chamfered edge 4 and the first chamfer 8, to make negative chamfered edge 4
A transition guide surface is formed by side rake angle 9 between first chamfer 8, when side rake angle 9 is using quadrilateral structure, is led to
Cross side rake angle 9 chip can be made significantly more efficient from negative chamfered edge 4 shunting be directed on 8 face of first chamfer, to improve sawtooth
The service life of cutter head 2, when side rake angle 9 use pentagonal configuration, by side rake angle 9 chip can be made significantly more efficient from
The negative shunting of chamfered edge 4 is directed on first chamfer 8 and main side 10, to improve the service life of saw-tooth tool bit 2.
The above embodiment is only preferred embodiments of the present invention, cannot be protected with this to limit the utility model
Range, the variation of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacing belongs to
In the utility model range claimed.
Claims (5)
1. the cold saw saw blade that a kind of cutting edge is strengthened, including circular metal saw blade saw body, ring are located at the circular metal saw blade
Several saw-tooth tool bits in saw body, the saw-tooth tool bit include the chip-breaker for being located at its front end, are located at the chip-breaker both sides
Main side, be located at the flank on the saw-tooth tool bit top, be located at negative chamfered edge between the chip-breaker and the flank,
It is located at the chip dividing groove being connected to the negative chamfered edge in the flank, the apex being located between the main side and the flank
Chamfering, it is characterised in that：For the negative chamfered edge using being obliquely installed, the both ends of the negative chamfered edge are equipped with side rake angle.
2. the cold saw saw blade that a kind of cutting edge according to claim 1 is strengthened, it is characterised in that：The chip dividing groove is U
Type structure, the front end bottom surface of the chip dividing groove and the bottom of the negative chamfered edge are tangent.
3. the cold saw saw blade that a kind of cutting edge according to claim 1 or 2 is strengthened, it is characterised in that：The chip dividing groove
Side and the flank between internal angle beta be obtuse angle.
4. the cold saw saw blade that a kind of cutting edge according to claim 1 is strengthened, it is characterised in that：The side rake angle
End face at least has there are four vertex, and wherein four vertex for forming the side rake angle are located at the negative chamfered edge and the elder generation
On the upper and lower ends corner side of chamfer.
5. the cold saw saw blade that a kind of cutting edge according to claim 1 is strengthened, it is characterised in that：The negative chamfered edge and institute
The axial slices angle α for stating circular metal saw blade saw body is 2~35 °, and the negative chamfered edge is born by described first in cutting
Main cutting edge is formed by between rib and the chip-breaker to contact with workpiece to be processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820122679.5U CN207757013U (en) | 2018-01-24 | 2018-01-24 | A kind of cold saw saw blade that cutting edge is strengthened |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820122679.5U CN207757013U (en) | 2018-01-24 | 2018-01-24 | A kind of cold saw saw blade that cutting edge is strengthened |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207757013U true CN207757013U (en) | 2018-08-24 |
Family
ID=63181896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820122679.5U Active CN207757013U (en) | 2018-01-24 | 2018-01-24 | A kind of cold saw saw blade that cutting edge is strengthened |
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| Country | Link |
|---|---|
| CN (1) | CN207757013U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110640216A (en) * | 2019-08-14 | 2020-01-03 | 杭州博野精密工具有限公司 | Cold saw circular saw blade manufacturing process |
| CN114799342A (en) * | 2022-03-16 | 2022-07-29 | 杭州和源精密工具有限公司 | Cold saw capable of quickly cutting steel and preparation method thereof |
| EP4316712A1 (en) * | 2022-08-05 | 2024-02-07 | Black & Decker, Inc. | Reciprocating saw blade |
-
2018
- 2018-01-24 CN CN201820122679.5U patent/CN207757013U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110640216A (en) * | 2019-08-14 | 2020-01-03 | 杭州博野精密工具有限公司 | Cold saw circular saw blade manufacturing process |
| CN114799342A (en) * | 2022-03-16 | 2022-07-29 | 杭州和源精密工具有限公司 | Cold saw capable of quickly cutting steel and preparation method thereof |
| CN114799342B (en) * | 2022-03-16 | 2024-04-23 | 杭州和源精密工具有限公司 | Cold saw capable of rapidly cutting steel and preparation method thereof |
| EP4316712A1 (en) * | 2022-08-05 | 2024-02-07 | Black & Decker, Inc. | Reciprocating saw blade |
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