CN213672213U - Ultra-fast metal cutting cold saw - Google Patents
Ultra-fast metal cutting cold saw Download PDFInfo
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- CN213672213U CN213672213U CN202022056175.8U CN202022056175U CN213672213U CN 213672213 U CN213672213 U CN 213672213U CN 202022056175 U CN202022056175 U CN 202022056175U CN 213672213 U CN213672213 U CN 213672213U
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Abstract
The utility model discloses an ultra-fast metal cutting cold saw, including saw bit body and tool bit, each tool bit front end all has full circular arc chip breaker, the last stress ring that has of saw bit body, the stress ring is located the golden section point of saw bit body, still be equipped with the stress zone on the saw bit body of stress ring inboard and outside, the top of tool bit has the biradial relief angle, biradial relief angle includes front angle face and relief angle face, the angle value of front angle face is 3 ~ 8, the angle value of relief angle face is 9 ~ 13, name the both sides face of tool bit first side and second side respectively, first side and second side all have the side relief angle and the side of different angle values and the side is to the heart angle, the top of both sides face still has the friction and reduces technology mesa, the utility model discloses the rigidity is good, intensity is high, the chip removal is smooth, and the ultra-fast metal saw can be adapted to ultra-fast metal saw cutting on the premise of not thickening the saw blade design.
Description
Technical Field
The utility model relates to an ultra-fast metal cutting cold saw.
Background
Cutting cold saws are often used for cutting metal materials such as bars, pipes, plates and the like, many saw cutting customers are still in a single machine working state at present, and the saw cutting and other subsequent processes are independent and separated and cannot be in a seamless connection state. For example, the material needs to be transported to the next process after being discharged, and a lot of time is wasted in transportation, waiting and the like; with the gradual deepening of intelligent manufacturing and 5G + industrial Internet, more and more schemes are specially used for the whole production line.
Taking an intelligent bearing blanking factory as an example, the process is as follows: sawing blanking → conveying of caterpillar band → heating → hot forging → sorting of robot arm → press forming → heat treatment → subsequent process. Due to the fact that the crawler belt is used for conveying and the robot is added, the whole machining efficiency is improved, the blanking speed of the saw blade needs to be improved, and the requirement for operation of the whole production line is met.
The cold saw cutting is just in the previous process, so that the sawing efficiency needs to be improved, and the sawing speed needs to be increased. Under the background, the cutting line speed is more than 110M/MIN, the ultra-fast saw blade with the feeding amount of each tooth more than 0.10 and the feeding speed more than 350mm/MIN is produced at the same time, but the saw cutting speed is accelerated on the premise of not thickening the design of the saw blade, and great challenges are brought to the rigidity, the strength, the chip removal and the saw blade manufacturing of the saw blade.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the not enough of above-mentioned prior art, provide an ultrafast metal cutting cold saw.
The technical scheme of the utility model is that: an ultra-fast metal cutting cold saw comprises a saw blade body and tool bits, wherein the front end of each tool bit is provided with a full-circular arc chip breaker groove;
the stress ring is arranged on the saw blade body and is positioned on the golden section point of the saw blade body, the saw blade body on the inner side and the outer side of the stress ring is also provided with a stress belt, and the groove or the bulge of the stress belt extends along the radial direction of the saw blade body;
the top of the cutter head is provided with a double-radial rear angle, the double-radial rear angle comprises a front angle surface and a rear angle surface, the angle value of the front angle surface is 3-8 degrees, and the angle value of the rear angle surface is 9-13 degrees;
the two side surfaces of the tool bit are named as a first side surface and a second side surface respectively, the first side surface and the second side surface are provided with side surface rear angles and side surface centripetal angles with different angle values, the top ends of the two side surfaces are also provided with a friction reduction process table board, and the friction reduction process table board is positioned at the rear end of the side surfaces and is a slope surface inclining backwards.
Preferably, there are two stress rings, and the two stress rings are respectively positioned at two sides of a golden section point of the saw blade body.
Furthermore, the full-arc chip breaker groove is composed of a first arc, a second arc and a third arc which are sequentially connected from top to bottom, and the angle absolute value of the third arc is greater than that of the first arc and that of the second arc.
Specifically, the angle of the side rear angle of the first side face is 0-1 degree, and the angle of the side face of the first side face to the central angle is 0.5-1.5 degrees; the side surface back angle of the second side surface is 1-5 degrees, and the side surface central angle of the second side surface is 0.5-2 degrees.
Furthermore, the top of each tool bit is also provided with chip separating grooves, the chip separating grooves on each adjacent tool bit are distributed in a bilateral symmetry manner, and each chip separating groove is also in a full-circular arc structure.
Furthermore, the connecting position of the edge of the chip dividing groove and the cutting edge is of an obtuse angle structure.
Furthermore, the cutter head and the saw blade body are welded in a wedge angle mode, and the lower portion of the cutter head is an inclined surface.
Specifically, the wedge angle is 45-80 degrees.
The utility model has the advantages that: the utility model discloses the rigidity is good, intensity is high, the smear metal chip removal is smooth and easy, can adapt to ultrafast metal saw cutting under the prerequisite of not thickening saw bit design.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a perspective view of the tool bit of the present invention;
FIG. 3 is a schematic side view of the tool bit of the present invention;
FIG. 4 is a front view of the cutting head of the present invention;
FIG. 5 is a schematic view of the front side of another tool bit of the present invention;
fig. 6 is a schematic structural diagram of the chip dividing groove of the present invention.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
As shown in fig. 1, the ultra-fast metal cutting cold saw comprises a saw blade body 1 and tool bits 2, wherein the front end of each tool bit 2 is provided with a full-arc chip breaker groove 3;
the saw blade body 1 adopts a deep cooling technology, so that the rigidity and the strength of the saw blade body 1 are enhanced, and the enhanced hardness value is more than HRC50 and the bending strength is more than 950 Mpa;
the saw blade body 1 is provided with a stress ring 4, the stress ring 4 is positioned on a golden section point of the saw blade body 1, stress belts 5 are further arranged on the saw blade body 1 at the inner side and the outer side of the stress ring 4, and grooves or bulges of the stress belts 5 extend along the radial direction of the saw blade body 1;
specifically, two stress rings 4 are provided, and the two stress rings 4 are respectively positioned at two sides of a golden section point of the saw blade body 1;
the processing mode enables the saw blade body 1 to resist cutting resistance, material internal stress and thermal stress during ultra-fast cutting and an instant cutting resistance extreme value of a saw blade cutting point and a saw blade cutting point; in addition, the negative effects of the transverse displacement of the saw blade body 1 and the cutter head 2 in the sawing direction can be avoided and reduced;
the full-circular arc chip breaker 3 consists of a first circular arc R1, a second circular arc R2 and a third circular arc R3 which are sequentially connected from top to bottom, wherein the absolute value of the angle of the third circular arc R3 is greater than the absolute value of the angle of the first circular arc R1 is greater than the absolute value of the angle of the second circular arc R2, and the circular arc curvatures formed by the first circular arc R1, the second circular arc R2 and the third circular arc R3 enable ultrafast (large-feed) chips to be smoothly curled according to a set curling radius, so that the chips can be effectively prevented from being held (the serious influence that a tooth chamber is blocked and a saw blade cannot continue to cut) or unsmooth in chip removal (the chips can participate in secondary cutting, and the influence that the chips cannot be cut again due to the fact that the chips are harder than a processed material and the teeth damage the cutter teeth is very easily caused);
referring to fig. 2 and 3, the top of the cutter head 2 is provided with a dual radial relief angle, the dual radial relief angle comprises a front angle surface 6 and a rear angle surface 7, the angle value of the front angle surface 6 is 3-8 degrees, and the angle value of the rear angle surface 7 is 9-13 degrees;
wherein the front rake face 6 is an edge forming face which has friction with the material when cutting; the rise of the cutting resistance value can be influenced by the too large or too small value of the rear angle surface 7, meanwhile, if the rear angle surface 7 is too long, the larger the friction resistance is, the phenomenon of cutter vibration is easy to occur, and the problem can be well solved by the double-rear angle design;
the two side surfaces of the tool bit 2 are named as a first side surface and a second side surface respectively, the first side surface and the second side surface both have side surface back angles 8 and side surface centripetal angles 10 with different angle values, the top ends of the two side surfaces are also provided with a friction reduction process table 11, and the friction reduction process table 11 is positioned at the rear end of the side surfaces and is a slope surface inclining backwards;
the angle of the side rear angle 8 of the first side surface is 0-1 degree, and the angle of the side centripetal angle 10 of the first side surface is 0.5-1.5 degrees; the rear angle 8 of the side surface of the second side surface is 1-5 degrees, and the centripetal angle 10 of the side surface of the second side surface is 0.5-2 degrees;
since the side surface of the cutter head 2 is a cut surface forming surface of the cut material, the design of the side surface directly determines the quality (including smoothness, flatness, verticality and the like) of the cut section; the structure not only has the same function of the double-side back angle 8, but also can effectively reduce the lateral deflection and improve the smoothness of the saw cutting section;
compared with the process table-board-free process table-board, the friction reduction process table-board 11 applied in the embodiment can reduce the cutting heat by 15-30%. The durability (service life) of the saw blade is improved by more than 10 percent;
as shown in fig. 4 and 5, the top of each tool bit 2 further has a chip breaker 12, the chip breakers 12 on adjacent tool bits 2 are symmetrically distributed in the left-right direction, each chip breaker 12 is also designed to be a full-arc structure, and the joint position of the edge of each chip breaker 12 and the cutting edge is an obtuse-angle structure (as shown in fig. 6), so that the strength of the joint position can be effectively ensured, and the damage phenomenon of the cutting edge and the full-arc chip breaker 3 during cutting cannot occur; the full-circular arc chip dividing groove 12 can lead the cutting to be smoothly segmented and effectively lead the chips not to deflect towards the two sides of the saw path;
the tool bit 2 and the saw blade body 1 are welded in a wedge angle beta mode, the angle of the wedge angle beta is 45-80 degrees, and the welding strength of rapid cutting seeds can be effectively ensured; the lower part of the tool bit 2 is inclined at an angle alpha which is 3-10 degrees, so that the outflow form of transition cuttings along the full-circular arc-shaped chip breaker groove 3 can be effectively improved.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides an ultra-fast metal cutting cold saw, includes saw bit body and tool bit, its characterized in that: the front end of each tool bit is provided with a full-arc chip breaker groove;
the stress ring is arranged on the saw blade body and is positioned on the golden section point of the saw blade body, the saw blade body on the inner side and the outer side of the stress ring is also provided with a stress belt, and the groove or the bulge of the stress belt extends along the radial direction of the saw blade body;
the top of the cutter head is provided with a double-radial rear angle, the double-radial rear angle comprises a front angle surface and a rear angle surface, the angle value of the front angle surface is 3-8 degrees, and the angle value of the rear angle surface is 9-13 degrees;
the two side surfaces of the tool bit are named as a first side surface and a second side surface respectively, the first side surface and the second side surface are provided with side surface rear angles and side surface centripetal angles with different angle values, the top ends of the two side surfaces are also provided with a friction reduction process table board, and the friction reduction process table board is positioned at the rear end of the side surfaces and is a slope surface inclining backwards.
2. The ultra-fast metal cutting cold saw as claimed in claim 1, wherein: the stress rings are two in number and are respectively positioned on two sides of a golden section point of the saw blade body.
3. The ultra-fast metal cutting cold saw as claimed in claim 1, wherein: the full-arc chip breaker is composed of a first arc, a second arc and a third arc which are sequentially connected from top to bottom, and the angle absolute value of the third arc is greater than that of the first arc and that of the second arc.
4. The ultra-fast metal cutting cold saw as claimed in claim 3, wherein: the angle of the side rear angle of the first side face is 0-1 degree, and the angle of the side face of the first side face to the central angle is 0.5-1.5 degrees; the side surface back angle of the second side surface is 1-5 degrees, and the side surface central angle of the second side surface is 0.5-2 degrees.
5. The ultra-fast metal cutting cold saw as claimed in claim 1, wherein: the top of each tool bit still has the chip groove, and the chip groove on each adjacent tool bit is bilateral symmetry and distributes, each chip groove also is full circular arc structure.
6. The ultra-fast metal cutting cold saw as claimed in claim 5, wherein: the connecting position of the edge of the chip dividing groove and the cutting edge is of an obtuse angle structure.
7. The ultra-fast metal cutting cold saw as claimed in claim 1, wherein: the cutter head and the saw blade body are welded in a wedge angle mode, and the lower portion of the cutter head is an inclined surface.
8. The ultra-fast metal cutting cold saw as claimed in claim 7, wherein: the angle of the wedge angle is 45-80 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022056175.8U CN213672213U (en) | 2020-09-18 | 2020-09-18 | Ultra-fast metal cutting cold saw |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022056175.8U CN213672213U (en) | 2020-09-18 | 2020-09-18 | Ultra-fast metal cutting cold saw |
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| CN213672213U true CN213672213U (en) | 2021-07-13 |
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| CN202022056175.8U Active CN213672213U (en) | 2020-09-18 | 2020-09-18 | Ultra-fast metal cutting cold saw |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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- 2020-09-18 CN CN202022056175.8U patent/CN213672213U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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